/* ============================================================
   PressMapper · Global Styles  (Light / professional B2B theme)
   White & light-grey base · professional blue · restrained orange.
   Pressure-map colour kept for data visuals only.
   Mobile-first. Media queries strictly separated at the bottom.
   ============================================================ */

/* ---- Design tokens ---------------------------------------- */
:root {
  /* Surfaces */
  --bg:           #ffffff;
  --bg-2:         #f7f9fb;   /* section tint */
  --surface:      #ffffff;   /* cards */
  --surface-2:    #f2f6fa;
  --border:       #e3e9f0;   /* hair-line */
  --border-soft:  #edf1f6;

  /* Text */
  --text:         #1a2b3c;
  --text-soft:    #46586b;
  --text-muted:   #7c8aa0;

  /* Brand */
  --brand:        #185fa5;
  --brand-dark:   #124b82;
  --brand-tint:   #eef4fa;
  --brand-tint-2: #e4eef7;

  /* Accent (restrained orange) */
  --accent:       #d85a30;
  --accent-hover: #c34d27;

  /* Pressure gradient (low -> high) — data visuals only */
  --p-blue:   #185fa5;
  --p-cyan:   #19a9c6;
  --p-green:  #36c27a;
  --p-yellow: #ffce3a;
  --p-orange: #ff8a3c;
  --p-red:    #ef4444;

  /* Dark interior used only inside data cards */
  --data-bg:  #0a1b2e;

  --radius:    16px;
  --radius-sm: 10px;
  --maxw:      1180px;
  --gap:       22px;

  --shadow-sm: 0 1px 2px rgba(16, 42, 67, .05), 0 6px 18px -12px rgba(16, 42, 67, .14);
  --shadow:    0 2px 6px rgba(16, 42, 67, .06), 0 18px 40px -22px rgba(16, 42, 67, .22);
  --pressure-grad: linear-gradient(90deg, var(--p-blue), var(--p-cyan), var(--p-green), var(--p-yellow), var(--p-orange), var(--p-red));
}

/* ---- Self-hosted wordmark font (Inter ExtraBold, subset to "PressMapper") -- */
@font-face {
  font-family: "InterWordmark";
  font-style: normal;
  font-weight: 800;
  font-display: swap;
  src: url("/assets/fonts/inter-extrabold-pressmapper.woff2") format("woff2");
}

/* ---- Reset / base ----------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 10px 16px;
  border: 2px solid #fff;
  border-radius: 8px;
  background: var(--brand-dark);
  color: #fff;
  font-weight: 700;
  box-shadow: var(--shadow);
  transform: translateY(-200%);
}
.skip-link:focus,
.skip-link:focus-visible {
  color: #fff;
  outline: 3px solid var(--p-yellow);
  outline-offset: 2px;
  transform: translateY(0);
}

img, svg { max-width: 100%; display: block; }
a { color: var(--brand); text-decoration: none; }

h1, h2, h3 { line-height: 1.18; margin: 0 0 .5em; font-weight: 700; letter-spacing: -.015em; color: var(--text); }
h2 { font-size: 1.6rem; }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

.eyebrow {
  display: inline-block;
  font-size: .76rem; letter-spacing: .15em; text-transform: uppercase;
  color: var(--brand); font-weight: 700; margin-bottom: 14px;
}

.section { padding: 56px 0; }
.section--tint { background: var(--bg-2); border-top: 1px solid var(--border-soft); border-bottom: 1px solid var(--border-soft); }
.section__head { max-width: 700px; margin-bottom: 32px; }
.section__head p { color: var(--text-soft); margin-bottom: 0; }

.gradient-rule { height: 3px; width: 100%; background: var(--pressure-grad); border: 0; margin: 0; }

/* ---- Buttons ---------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  font-weight: 700; font-size: .98rem;
  padding: 13px 24px; border-radius: 10px;
  cursor: pointer; border: 1px solid transparent;
  transition: transform .15s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--brand); color: #fff; box-shadow: 0 8px 20px -10px rgba(24, 95, 165, .6); }
.btn--primary:hover { background: var(--brand-dark); }
.btn--accent { background: var(--accent); color: #fff; box-shadow: 0 8px 20px -10px rgba(216, 90, 48, .6); }
.btn--accent:hover { background: var(--accent-hover); }
.btn--ghost { background: #fff; color: var(--brand); border-color: var(--border); }
.btn--ghost:hover { border-color: var(--brand); }
.btn--lg { padding: 15px 28px; font-size: 1.04rem; }

/* ---- Brand / logo ----------------------------------------- */
.brand { display: inline-flex; align-items: center; gap: 13px; }
.brand__mark { width: 45px; height: 45px; flex: 0 0 auto; }
.brand .wm { font-family: "InterWordmark", -apple-system, "Segoe UI", Roboto, Arial, sans-serif; font-weight: 800; font-size: 1.6rem; letter-spacing: -.022em; line-height: 1; }
.brand .wm-press { color: var(--text); }
.brand .wm-mapper { color: var(--brand); }

/* ---- Header (layered: top utility bar + main nav) --------- */
.site-header { position: sticky; top: 0; z-index: 50; }

.topbar { background: var(--brand-dark); color: #cfe0f1; font-size: .8rem; }
.topbar__inner { display: flex; align-items: center; height: 38px; }
.topbar__tag { display: none; }
.topbar__links { display: flex; gap: 18px; margin-left: auto; }
.topbar__links a { color: #cfe0f1; font-weight: 500; }
.topbar__links a:hover { color: #fff; }

.navbar {
  background: rgba(255, 255, 255, .94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 6px 20px -16px rgba(16, 42, 67, .45);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 74px; }
.nav__links { display: none; }
.nav__cta { display: none; }
.nav__toggle { display: inline-flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px; min-width: 44px; min-height: 44px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav__toggle span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: .2s; }

.nav__mobile { display: none; flex-direction: column; gap: 4px; padding: 10px 0 18px; border-top: 1px solid var(--border-soft); }
.nav__mobile.open { display: flex; }
.nav__mobile a { padding: 13px 6px; color: var(--text-soft); font-weight: 600; font-size: 1.06rem; border-radius: 8px; }
.nav__mobile a:hover { background: var(--surface-2); color: var(--brand); }
.nav__mobile .btn { margin-top: 8px; justify-content: center; color: #fff; }

/* Applications navigation: linked parent plus independently controlled submenu */
.nav-dropdown { position: relative; height: 74px; display: flex; align-items: center; }
.nav-dropdown__trigger { display: flex; align-items: center; }
.nav-dropdown__parent.is-active,
.mobile-subnav__parent.is-active { color: var(--brand); }
.nav-dropdown__toggle,
.mobile-subnav__toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  background: transparent;
  color: var(--text-soft);
  cursor: pointer;
}
.nav-dropdown__toggle { width: 30px; height: 38px; margin-left: 2px; border-radius: 8px; }
.nav-dropdown__chevron,
.mobile-subnav__chevron {
  width: 8px;
  height: 8px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translate(-1px, -1px);
  transition: transform .18s ease;
}
.nav-dropdown__toggle[aria-expanded="true"] .nav-dropdown__chevron,
.mobile-subnav__toggle[aria-expanded="true"] .mobile-subnav__chevron {
  transform: rotate(225deg) translate(-1px, -1px);
}
.nav-dropdown__toggle:hover,
.mobile-subnav__toggle:hover { color: var(--brand); background: var(--surface-2); }
.nav-dropdown__toggle:focus-visible,
.mobile-subnav__toggle:focus-visible,
.nav-dropdown__link:focus-visible,
.mobile-subnav__link:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }
.nav-dropdown__panel {
  position: absolute;
  top: calc(100% - 5px);
  left: 50%;
  z-index: 80;
  width: 330px;
  padding: 10px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 16px 36px -18px rgba(16, 42, 67, .42);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translate(-50%, 6px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
}
.nav-dropdown:hover .nav-dropdown__panel,
.nav-dropdown.is-open .nav-dropdown__panel {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate(-50%, 0);
}
.nav-dropdown.is-closed .nav-dropdown__panel {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translate(-50%, 6px);
}
.nav-dropdown__list,
.mobile-subnav__list { list-style: none; margin: 0; padding: 0; }
.nav__links .nav-dropdown__link {
  display: block;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--text-soft);
  font-size: .94rem;
  line-height: 1.35;
}
.nav__links .nav-dropdown__link:hover,
.nav__links .nav-dropdown__link[aria-current="page"] {
  background: var(--surface-2);
  color: var(--brand);
}
.nav-dropdown__item--all { margin-top: 7px; padding-top: 7px; border-top: 1px solid var(--border-soft); }

.mobile-subnav__trigger { display: flex; align-items: center; }
.nav__mobile .mobile-subnav__parent { flex: 1; }
.mobile-subnav__toggle { width: 44px; height: 44px; flex: 0 0 44px; border-radius: 8px; }
.mobile-subnav__list { display: none; margin: 0 0 6px 12px; padding: 4px 0 4px 10px; border-left: 2px solid var(--border-soft); }
.mobile-subnav.is-open .mobile-subnav__list { display: block; }
.nav__mobile .mobile-subnav__link { display: block; padding: 10px 12px; font-size: .94rem; font-weight: 600; }
.nav__mobile .mobile-subnav__link[aria-current="page"] { background: var(--surface-2); color: var(--brand); }
.mobile-subnav__item--all { margin-top: 4px; padding-top: 4px; border-top: 1px solid var(--border-soft); }

/* ---- Hero (full-bleed image + text) --------- */
.hero { position: relative; overflow: hidden; background: var(--bg); display: flex; flex-direction: column; }
.hero .container { order: 1; position: relative; z-index: 2; }
.hero__content { padding: 34px 0 6px; max-width: 600px; }

.hero h1 { font-size: 2.15rem; margin-bottom: 16px; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero__sub { font-size: 1.08rem; color: var(--text-soft); max-width: 540px; margin-bottom: 26px; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 26px; }
.hero__tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag { font-size: .8rem; color: var(--text-soft); border: 1px solid var(--border); border-radius: 999px; padding: 6px 13px; background: #fff; }
.tag b { color: var(--accent); font-weight: 700; }

/* Hero media (carousel) — full-width block on mobile */
.hero__media { order: 2; position: relative; width: 100%; margin: 22px 0 0; }
.hero__media-fade { display: none; }

.carousel__track { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: #edf3f7; }
.slide { position: absolute; inset: 0; margin: 0; opacity: 0; transition: opacity .7s ease; pointer-events: none; }
.slide.is-active { opacity: 1; pointer-events: auto; }
/* Keep the complete engineering subject visible instead of forcing every source
   through the same crop. The panel background separates white product shots. */
.slide img { width: 100%; height: 100%; object-fit: contain; object-position: center; display: block; }
/* The first and fourth sources include shallow light margins around the complete
   subject. A restrained scale removes only that breathing room without turning
   the carousel into a cover crop. */
.slide:first-child img,
.slide:nth-child(4) img { transform: scale(1.04); }
.slide__cap {
  position: absolute; left: 14px; bottom: 14px; z-index: 3;
  background: rgba(10, 27, 46, .8); color: #fff; font-size: .78rem; font-weight: 600;
  padding: 6px 13px; border-radius: 999px; backdrop-filter: blur(2px);
}
.carousel__dots { position: absolute; left: 0; right: 0; bottom: 14px; z-index: 4; display: flex; gap: 8px; justify-content: center; margin: 0; }
.carousel__dots .dot {
  width: 44px; height: 44px; padding: 0; border: 0; border-radius: 999px;
  background: radial-gradient(circle, rgba(255, 255, 255, .72) 0 5px, transparent 6px); box-shadow: none;
  cursor: pointer; transition: background .2s ease;
}
.carousel__dots .dot:hover { background: radial-gradient(circle, #fff 0 6px, transparent 7px); }
.carousel__dots .dot.is-active { width: 44px; background: radial-gradient(ellipse, #fff 0 10px, transparent 11px); }

/* ---- Generic card grids ----------------------------------- */
.grid { display: grid; gap: var(--gap); grid-template-columns: 1fr; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: transform .18s ease, box-shadow .2s ease, border-color .2s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--brand-tint-2); }
.card p { color: var(--text-soft); margin-bottom: 0; font-size: .96rem; }

.icon-chip {
  width: 46px; height: 46px; border-radius: 12px;
  display: grid; place-items: center; margin-bottom: 16px;
  background: var(--brand-tint); border: 1px solid var(--brand-tint-2);
}
.icon-chip svg { width: 24px; height: 24px; }

/* Application cards */
.app-card { position: relative; display: flex; flex-direction: column; }
.app-card .badge {
  position: absolute; top: 18px; right: 18px;
  font-size: .66rem; font-weight: 700; letter-spacing: .05em; text-transform: uppercase;
  color: #fff; background: var(--accent); padding: 4px 10px; border-radius: 999px;
}
.app-card ul { margin: 12px 0 18px; padding-left: 18px; color: var(--text-muted); font-size: .9rem; }
.app-card li { margin-bottom: 4px; }
.app-card .link { margin-top: auto; color: var(--brand); font-weight: 700; font-size: .9rem; }

/* Product cards */
.product-card .thumb {
  height: 140px; border-radius: var(--radius-sm); margin-bottom: 18px;
  border: 1px solid var(--border); overflow: hidden; background: var(--surface-2);
}
.product-card .thumb svg { width: 100%; height: 100%; }
.engineering-static { display: block; width: 100%; height: auto; }
.product-card .thumb .engineering-static { height: 100%; }

/* Neutral, non-product-specific V1 engineering visuals */
.neutral-interface-diagram,
.neutral-map-diagram {
  position: relative;
  width: 100%;
  min-height: 220px;
  overflow: hidden;
  background: linear-gradient(145deg, #edf5f8, #dceaf0);
  color: #31536e;
}
.neutral-interface-diagram {
  display: grid;
  align-content: center;
  gap: 22px;
  padding: 28px clamp(20px, 7%, 54px) 24px;
}
.neutral-interface-diagram__stage {
  position: relative;
  min-height: 128px;
}
.neutral-interface-diagram__upper,
.neutral-interface-diagram__lower,
.neutral-interface-diagram__sensor,
.neutral-interface-diagram__tail {
  position: absolute;
  display: block;
}
.neutral-interface-diagram__upper,
.neutral-interface-diagram__lower {
  left: 8%;
  width: 72%;
  height: 28px;
  border: 1px solid #839aac;
  border-radius: 5px;
}
.neutral-interface-diagram__upper {
  top: 14px;
  background: #aebfca;
  transform: skewX(-4deg);
}
.neutral-interface-diagram__lower {
  top: 91px;
  background: #60798e;
}
.neutral-interface-diagram__sensor {
  top: 72px;
  left: 12%;
  width: 66%;
  height: 8px;
  border: 1px solid #9fe7df;
  border-radius: 4px;
  background: repeating-linear-gradient(90deg, #2ca9a5 0 9px, #8be0d7 9px 11px);
}
.neutral-interface-diagram__tail {
  top: 74px;
  left: 78%;
  width: 18%;
  height: 5px;
  border-radius: 0 5px 5px 0;
  background: #2ca9a5;
}
.neutral-interface-diagram__labels {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: #31536e;
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.neutral-map-diagram {
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  align-items: center;
  gap: 20px;
  padding: 26px;
}
.neutral-map-diagram__map {
  display: block;
  aspect-ratio: 1;
  border: 8px solid #16364f;
  border-radius: 8px;
  background:
    linear-gradient(rgba(145, 181, 204, .34) 1px, transparent 1px),
    linear-gradient(90deg, rgba(145, 181, 204, .34) 1px, transparent 1px),
    radial-gradient(ellipse at 68% 42%, #e95545 0 9%, #f39a3e 10% 19%, #f5d84a 20% 28%, #4bc879 29% 40%, #25b8c2 41% 54%, #12345b 55%);
  background-size: 16px 16px, 16px 16px, 100% 100%;
}
.neutral-map-diagram__trend {
  display: block;
  min-height: 110px;
  border-left: 2px solid #71899c;
  border-bottom: 2px solid #71899c;
  background:
    linear-gradient(150deg, transparent 0 30%, #2d7fa2 31% 34%, transparent 35% 45%, #2d7fa2 46% 49%, transparent 50% 58%, #e58b38 59% 62%, transparent 63%);
}
.neutral-map-diagram__label {
  grid-column: 1 / -1;
  color: #31536e;
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .06em;
  text-align: center;
  text-transform: uppercase;
}
.app-hero__media > .neutral-interface-diagram { min-height: 100%; }
.visual-strip .neutral-map-diagram,
.result-comparison .neutral-interface-diagram,
.spec-figure--photo .neutral-interface-diagram { aspect-ratio: 16 / 9; min-height: 0; }

/* ---- Tech showcase ---------------------------------------- */
.tech { display: grid; gap: 28px; grid-template-columns: 1fr; align-items: center; }
.tech__visual {
  background: var(--data-bg);
  border: 1px solid #16314c; border-radius: var(--radius);
  padding: 18px; box-shadow: var(--shadow);
  overflow: hidden;
}
.tech__caption { font-size: .82rem; color: #8aa0ba; margin: 12px 0 0; text-align: center; }
.legend { display: flex; align-items: center; gap: 10px; margin-top: 14px; font-size: .76rem; color: #9fb3c9; }
.legend__bar { flex: 1; height: 8px; border-radius: 999px; background: var(--pressure-grad); }

.measurement-flow { display: block; width: 100%; height: auto; aspect-ratio: 720 / 330; }
.measurement-flow__label {
  fill: #a9bed1; font-size: 12px; font-weight: 700; letter-spacing: .08em;
}
.measurement-flow__part-label { fill: #91a9bf; font-size: 11px; letter-spacing: .025em; }
.measurement-flow__upper {
  transform-box: fill-box; transform-origin: center bottom;
  animation: pm-contact-load 8s cubic-bezier(.45, 0, .25, 1) infinite;
}
.measurement-flow__sensor {
  animation: pm-sensor-state 8s ease-in-out infinite;
}
.measurement-flow__signal {
  stroke-dasharray: 7 7;
  animation: pm-data-flow 8s linear infinite;
}
.measurement-flow__status--ready { animation: pm-ready-light 8s ease-in-out infinite; }
.measurement-flow__status--load { animation: pm-load-light 8s ease-in-out infinite; }
.pressure-field {
  transform-box: fill-box; transform-origin: center;
  opacity: 0;
}
.pressure-field--cyan { animation: pm-field-cyan 8s ease-in-out infinite; }
.pressure-field--green { animation: pm-field-green 8s ease-in-out infinite; }
.pressure-field--yellow { animation: pm-field-yellow 8s ease-in-out infinite; }
.pressure-field--orange { animation: pm-field-orange 8s ease-in-out infinite; }
.pressure-field--hot { animation: pm-field-hot 8s ease-in-out infinite; }

@keyframes pm-contact-load {
  0%, 18.75%, 100% { transform: translateY(0) rotate(0deg); }
  37.5% { transform: translateY(54px) rotate(0deg); }
  62.5% { transform: translateY(58px) rotate(0deg); }
  81.25% { transform: translateY(56px) rotate(3deg); }
}
@keyframes pm-sensor-state {
  0%, 18.75%, 100% { opacity: .82; }
  37.5% { opacity: 1; }
  62.5%, 81.25% { opacity: 1; }
}
@keyframes pm-data-flow {
  0%, 18.75%, 100% { stroke-dashoffset: 0; opacity: .4; }
  37.5%, 81.25% { stroke-dashoffset: -35; opacity: 1; }
}
@keyframes pm-ready-light {
  0%, 18.75%, 100% { fill: #2a7597; }
  37.5%, 81.25% { fill: #24c7b1; }
}
@keyframes pm-load-light {
  0%, 18.75%, 100% { fill: #31536f; }
  37.5% { fill: #42c979; }
  62.5% { fill: #ffd84a; }
  81.25% { fill: #ff9138; }
}
@keyframes pm-field-cyan {
  0%, 18.75%, 100% { opacity: 0; transform: scale(.72); }
  37.5% { opacity: .82; transform: scale(.86); }
  62.5% { opacity: 1; transform: scale(1); }
  81.25% { opacity: .88; transform: translateX(8px) scale(.94); }
}
@keyframes pm-field-green {
  0%, 25%, 100% { opacity: 0; transform: scale(.68); }
  37.5% { opacity: .62; transform: scale(.82); }
  62.5% { opacity: 1; transform: scale(1); }
  81.25% { opacity: .9; transform: translateX(10px) scale(.96); }
}
@keyframes pm-field-yellow {
  0%, 34%, 100% { opacity: 0; transform: scale(.62); }
  50% { opacity: .7; transform: scale(.86); }
  62.5% { opacity: 1; transform: scale(1); }
  81.25% { opacity: .95; transform: translateX(13px) scale(.98); }
}
@keyframes pm-field-orange {
  0%, 40%, 100% { opacity: 0; transform: scale(.56); }
  62.5% { opacity: .92; transform: scale(1); }
  81.25% { opacity: 1; transform: translateX(16px) scale(1.02); }
}
@keyframes pm-field-hot {
  0%, 48%, 100% { opacity: 0; transform: scale(.52); }
  62.5% { opacity: .88; transform: scale(1); }
  81.25% { opacity: 1; transform: translateX(20px) scale(1.08); }
}

@media (prefers-reduced-motion: reduce) {
  .measurement-flow__upper { animation: none; transform: translateY(56px) rotate(3deg); }
  .measurement-flow__sensor,
  .measurement-flow__signal,
  .measurement-flow__status--ready,
  .measurement-flow__status--load,
  .pressure-field { animation: none; }
  .measurement-flow__signal { opacity: 1; stroke-dasharray: none; }
  .measurement-flow__status--ready { fill: #24c7b1; }
  .measurement-flow__status--load { fill: #ff9138; }
  .pressure-field { opacity: 1; }
  .pressure-field--cyan { transform: translateX(8px) scale(.94); }
  .pressure-field--green { transform: translateX(10px) scale(.96); }
  .pressure-field--yellow { transform: translateX(13px) scale(.98); }
  .pressure-field--orange { transform: translateX(16px) scale(1.02); }
  .pressure-field--hot { transform: translateX(20px) scale(1.08); }
}

.feature-list { list-style: none; padding: 0; margin: 18px 0 0; }
.feature-list li { display: flex; gap: 12px; padding: 13px 0; border-top: 1px solid var(--border); }
.feature-list li:first-child { border-top: 0; }
.feature-list .dot { flex: 0 0 auto; width: 10px; height: 10px; border-radius: 50%; margin-top: 7px; background: var(--p-green); }
.feature-list .dot--hot { background: var(--accent); }
.feature-list b { color: var(--text); display: block; }
.feature-list span { color: var(--text-soft); font-size: .92rem; }

/* ---- Why / split feature ---------------------------------- */
.why-grid { display: grid; gap: 18px; grid-template-columns: 1fr; }
.why-item { display: flex; gap: 14px; align-items: flex-start; }
.why-item .num {
  flex: 0 0 auto; width: 40px; height: 40px; border-radius: 11px;
  display: grid; place-items: center; font-weight: 800; color: #fff;
  background: var(--brand); border: 1px solid var(--brand-dark);
}
.why-item h3 { font-size: 1.04rem; margin-bottom: 4px; }
.why-item p { color: var(--text-soft); font-size: .94rem; margin: 0; }

/* ---- Trust ------------------------------------------------ */
.trust-grid { display: grid; gap: var(--gap); grid-template-columns: 1fr; }
.proof-card { border: 1px solid #c7d4e2; border-radius: var(--radius); padding: 24px; background: #fff; }
.proof-card .pill {
  display: inline-block; font-size: .68rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: var(--brand); background: var(--brand-tint); border: 1px solid var(--brand-tint-2);
  border-radius: 999px; padding: 4px 11px; margin-bottom: 14px;
}
.proof-card p { color: var(--text-soft); font-size: .92rem; margin-bottom: 0; }

/* ---- CTA band --------------------------------------------- */
.cta-band { background: linear-gradient(120deg, var(--brand), var(--brand-dark)); }
.cta-band__inner { text-align: center; padding: 56px 0; position: relative; z-index: 1; }
.cta-band h2 { font-size: 1.7rem; color: #fff; }
.cta-band p { color: #cfe0f1; max-width: 520px; margin: 0 auto 24px; }
.cta-band .btn { justify-content: center; }
.cta-band .note { font-size: .82rem; color: #9fc0e0; margin-top: 16px; }
.cta-band .note a { color: #fff; }

/* ---- Footer ----------------------------------------------- */
.site-footer { background: var(--bg-2); border-top: 1px solid var(--border); padding: 46px 0 26px; }
.footer-grid { display: grid; gap: 30px; grid-template-columns: 1fr; }
.footer-col h3, .footer-col h4 { font-size: .8rem; text-transform: uppercase; letter-spacing: .1em; color: var(--text-muted); margin: 0 0 14px; }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: var(--text-soft); font-size: .93rem; }
.footer-col a:hover { color: var(--brand); }
.footer-about p { color: var(--text-soft); font-size: .93rem; max-width: 320px; margin-top: 14px; }
.footer-bottom {
  display: flex; flex-direction: column; gap: 8px;
  margin-top: 32px; padding-top: 20px; border-top: 1px solid var(--border);
  font-size: .84rem; color: var(--text-muted);
}
.footer-bottom a { color: var(--text-soft); }

/* ---- Page header (sub-pages) ------------------------------ */
.page-head { background: var(--bg); padding: 30px 0 8px; }
.page-head h1 { font-size: 2rem; margin-bottom: 12px; }
.page-head h1 em { font-style: normal; color: var(--accent); }
.page-head__sub { color: var(--text-soft); max-width: 560px; font-size: 1.05rem; margin: 0; }
.crumbs { font-size: .82rem; color: var(--text-muted); margin-bottom: 16px; }
.crumbs a { color: var(--text-soft); }
.crumbs a:hover { color: var(--brand); }
.crumbs span { margin: 0 6px; }

/* ---- Contact / form --------------------------------------- */
.contact-grid { display: grid; gap: 26px; grid-template-columns: 1fr; align-items: start; }
.contact-form-wrap {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow-sm); padding: 26px;
}
.contact-form-wrap h2 { font-size: 1.3rem; margin-bottom: 18px; }
.contact-form-intro { margin: -6px 0 22px; color: var(--text-soft); font-size: .94rem; }

.field-row { display: grid; gap: 16px; grid-template-columns: 1fr; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: .86rem; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.field label span { color: var(--accent); }
.field label .field-optional { margin-left: 5px; color: var(--text-muted); font-size: .76rem; font-weight: 500; }
.field input, .field select, .field textarea {
  width: 100%; font: inherit; color: var(--text);
  padding: 11px 13px; border: 1px solid var(--border); border-radius: 9px;
  background: #fff; transition: border-color .15s ease, box-shadow .15s ease;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px rgba(24, 95, 165, .14);
}
.field input[aria-invalid="true"], .field select[aria-invalid="true"], .field textarea[aria-invalid="true"] {
  border-color: #b7372d; box-shadow: 0 0 0 2px rgba(183, 55, 45, .12);
}
.field textarea { resize: vertical; min-height: 110px; }
.field select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%237c8aa0' stroke-width='2'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 36px; }

.form-note { font-size: .82rem; color: var(--text-muted); margin: 14px 0 0; }
.inquiry-details { margin: 2px 0 18px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--surface-2); }
.inquiry-details summary { cursor: pointer; padding: 14px 16px; color: var(--brand-dark); font-weight: 700; }
.inquiry-details summary:focus-visible { outline: 3px solid rgba(24, 95, 165, .2); outline-offset: 2px; }
.inquiry-details__body { padding: 2px 16px 0; border-top: 1px solid var(--border); }
.check-field { display: flex !important; gap: 10px; align-items: flex-start; color: var(--text-soft) !important; font-weight: 500 !important; line-height: 1.5; }
.check-field input { flex: 0 0 auto; width: 18px; height: 18px; margin-top: 2px; }
.check-field a { text-decoration: underline; text-underline-offset: 2px; }
.field--consent { margin-top: 4px; padding: 14px 15px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--surface-2); }
.field--consent .field-help, .field--consent .field-error { margin-left: 28px; }
.field-help { margin: 6px 0 0; color: var(--text-muted); font-size: .79rem; line-height: 1.45; }
.field-error { margin: 6px 0 0; color: #a3261b; font-size: .8rem; font-weight: 650; line-height: 1.4; }
.form-honeypot { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form-result { margin-top: 16px; padding: 13px 15px; border-radius: 9px; font-size: .92rem; font-weight: 500; }
.form-result--ok { background: #e7f6ee; border: 1px solid #b6e3c9; color: #176b3a; }
.form-result--err { background: #fdecea; border: 1px solid #f5c2bd; color: #a3261b; }
.form-result--err a { color: #a3261b; text-decoration: underline; }
.form-result--validation { margin: 0 0 16px; background: #fff5e8; border: 1px solid #efc58f; color: #7e4615; }
#submitBtn { min-height: 48px; min-width: 160px; justify-content: center; }
#submitBtn:disabled { cursor: wait; opacity: .72; }

.contact-aside { display: flex; flex-direction: column; gap: 16px; }
.contact-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow-sm); }
.contact-card h3 { font-size: 1.05rem; margin-bottom: 8px; }
.contact-card p { color: var(--text-soft); font-size: .94rem; margin: 0 0 12px; }
.contact-card p:last-child { margin-bottom: 0; }
.contact-line { display: inline-flex; align-items: center; gap: 9px; font-weight: 700; color: var(--brand); }
.contact-line:hover { color: var(--brand-dark); }
.contact-ico { display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 8px; background: var(--brand-tint); color: var(--brand); font-size: .9rem; }
.contact-list { margin: 0; padding-left: 18px; color: var(--text-soft); font-size: .92rem; }
.contact-list li { margin-bottom: 6px; }
.contact-card--accent { background: var(--brand-tint); border-color: var(--brand-tint-2); }
.contact-card--accent h3 { color: var(--brand-dark); }
.contact-visuals { display: grid; gap: 16px; }
.contact-diagram { margin: 0; overflow: hidden; border: 1px solid var(--border); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow-sm); }
.contact-diagram svg { width: 100%; height: auto; }
.contact-diagram svg text { fill: #36546c; font-family: inherit; font-size: 12px; font-weight: 650; letter-spacing: .02em; }
.contact-diagram__checklist circle { fill: var(--brand); }
.contact-diagram__flow rect { fill: #eef4fa; stroke: #a9c3db; }
.contact-diagram__flow text { text-anchor: middle; font-size: 9.5px; }
.contact-diagram figcaption { display: grid; gap: 4px; padding: 14px 16px 16px; border-top: 1px solid var(--border-soft); }
.contact-diagram figcaption strong { color: var(--brand-dark); }
.contact-diagram figcaption span { color: var(--text-soft); font-size: .84rem; line-height: 1.5; }

@media (max-width: 420px) {
  .contact-form-wrap { padding: 20px 16px; }
  .contact-diagram svg text { font-size: 11px; }
  .contact-diagram__flow text { font-size: 9px; }
  #submitBtn { width: 100%; }
}

/* ---- Application evaluation ------------------------------ */
.evaluation-grid { display: grid; gap: 28px; align-items: start; }
.evaluation-fit .card { height: 100%; }
.evaluation-list { margin-bottom: 0; }
.evaluation-note,
.limitations-panel { padding: 24px; border: 1px solid var(--brand-tint-2); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow-sm); }
.evaluation-note h3 { margin-bottom: 8px; color: var(--brand-dark); }
.evaluation-note p { color: var(--text-soft); }
.limitations-panel { max-width: 880px; border-left: 4px solid var(--accent); }
.limitations-panel .check-list { margin-bottom: 0; }

/* ---- Application page -------------------------------------- */
.app-hero { background: var(--bg); padding: 30px 0 8px; }
.app-hero .container { display: grid; gap: 26px; grid-template-columns: 1fr; align-items: center; }
.app-hero h1 { font-size: 2.05rem; margin-bottom: 14px; }
.app-hero h1 em { font-style: normal; color: var(--accent); }
.app-hero__sub { color: var(--text-soft); font-size: 1.06rem; margin-bottom: 22px; max-width: 540px; }
.app-hero__media { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); box-shadow: var(--shadow); }
.app-hero__media img { width: 100%; height: 100%; object-fit: cover; display: block; aspect-ratio: 16/10; }
.products-hero__media { background: #edf3f7; }
.products-hero__media img { object-fit: contain; object-position: center; transform: scale(1.04); }
.app-hero .hero__cta { display: flex; flex-wrap: wrap; gap: 12px; }

.lead-points { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 14px; }
.lead-points li { display: flex; gap: 12px; }
.lead-points .dot { flex: 0 0 auto; width: 10px; height: 10px; border-radius: 50%; margin-top: 7px; background: var(--brand); }
.lead-points b { color: var(--text); }
.lead-points span { color: var(--text-soft); }

/* scenario cards with self-drawn SVG figures */
.scenario { display: flex; flex-direction: column; }
.scenario__fig { border-radius: var(--radius-sm); overflow: hidden; border: 1px solid var(--border-soft); margin-bottom: 14px; background: var(--surface-2); }
.scenario__fig svg { width: 100%; height: auto; display: block; }
.scenario__fig img { width: 100%; height: auto; aspect-ratio: 16 / 10; object-fit: cover; object-position: center; display: block; }
.scenario h3 { font-size: 1.06rem; margin-bottom: 6px; }
.scenario .kw { display: inline-block; font-size: .72rem; font-weight: 700; letter-spacing: .03em; color: var(--brand); background: var(--brand-tint); border: 1px solid var(--brand-tint-2); border-radius: 999px; padding: 3px 9px; margin-bottom: 10px; }
.scenario p { color: var(--text-soft); font-size: .94rem; margin: 0; }

/* capability / spec panel */
.spec-panel { display: grid; gap: 26px; grid-template-columns: 1fr; align-items: center; }
.spec-figure { background: var(--data-bg); border: 1px solid #16314c; border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); }
.spec-figure svg { width: 100%; height: auto; display: block; }
.spec-figure--photo { background: #fff; border-color: var(--border); padding: 0; overflow: hidden; }
.spec-figure--photo img { width: 100%; height: auto; display: block; }
.spec-figure .legend { display: flex; align-items: center; gap: 10px; margin-top: 12px; font-size: .76rem; color: #9fb3c9; }
.spec-figure .legend__bar { flex: 1; height: 8px; border-radius: 999px; background: var(--pressure-grad); }
.spec-table { list-style: none; padding: 0; margin: 18px 0 0; }
.spec-table li { display: flex; justify-content: space-between; gap: 16px; padding: 11px 0; border-top: 1px solid var(--border); font-size: .94rem; }
.spec-table li:first-child { border-top: 0; }
.spec-table .k { color: var(--text-soft); }
.spec-table .v { color: var(--text); font-weight: 700; text-align: right; }

/* FAQ */
.faq { display: grid; gap: 12px; max-width: 820px; }
.faq details { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-sm); box-shadow: var(--shadow-sm); }
.faq summary { cursor: pointer; list-style: none; padding: 16px 18px; font-weight: 700; color: var(--text); display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--brand); font-weight: 700; font-size: 1.3rem; line-height: 1; }
.faq details[open] summary::after { content: "\2212"; }
.faq details p { color: var(--text-soft); font-size: .95rem; margin: 0; padding: 0 18px 18px; }

/* capability quick-stats bar */
.statbar { display: grid; gap: 14px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.stat { display: flex; gap: 13px; align-items: center; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; box-shadow: var(--shadow-sm); }
.stat .ico { flex: 0 0 auto; width: 42px; height: 42px; border-radius: 11px; display: grid; place-items: center; background: var(--brand-tint); border: 1px solid var(--brand-tint-2); }
.stat .ico svg { width: 22px; height: 22px; }
.stat b { display: block; font-size: 1.12rem; color: var(--text); line-height: 1.1; }
.stat span { font-size: .82rem; color: var(--text-muted); }

/* workflow steps */
.workflow { display: grid; gap: 16px; grid-template-columns: 1fr; counter-reset: wf; }
.wf-step { position: relative; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow-sm); }
.wf-step .wf-fig { border-radius: var(--radius-sm); overflow: hidden; border: 1px solid var(--border-soft); background: var(--surface-2); margin-bottom: 12px; }
.wf-step .wf-fig svg { width: 100%; height: auto; display: block; }
.wf-step .wf-fig img { width: 100%; height: auto; aspect-ratio: 16 / 10; object-fit: cover; display: block; }
.wf-step .wf-no { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 7px; background: var(--brand); color: #fff; font-weight: 800; font-size: .82rem; margin-bottom: 8px; }
.wf-step h3 { font-size: 1.02rem; margin-bottom: 5px; }
.wf-step p { color: var(--text-soft); font-size: .9rem; margin: 0; }

/* related resources */
.res-grid { display: grid; gap: 16px; grid-template-columns: 1fr; }
.res-card { display: flex; gap: 14px; align-items: flex-start; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px; box-shadow: var(--shadow-sm); }
.res-card .ico { flex: 0 0 auto; width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center; background: var(--brand-tint); border: 1px solid var(--brand-tint-2); }
.res-card h3 { font-size: 1rem; margin-bottom: 4px; }
.res-card p { color: var(--text-soft); font-size: .9rem; margin: 0 0 6px; }
.res-card .soon { font-size: .74rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: var(--p-yellow); }

/* ---- About, resources and utility pages ------------------ */
.value-grid { display: grid; gap: 18px; grid-template-columns: 1fr; }
.value-card { display: flex; flex-direction: column; align-items: flex-start; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow-sm); }
.value-card .icon-chip { margin-bottom: 18px; color: var(--brand); }
.value-card h3 { margin-bottom: 8px; }
.value-card p { color: var(--text-soft); font-size: .94rem; margin-bottom: 14px; }
.value-card .text-link { margin-top: auto; font-weight: 700; font-size: .92rem; }
.value-card .text-link::after { content: "\2192"; margin-left: 7px; }

.path-grid { display: grid; gap: 18px; grid-template-columns: 1fr; }
.path-card { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow-sm); }
.path-card__meta { display: inline-flex; align-self: flex-start; margin-bottom: 14px; padding: 5px 10px; border: 1px solid var(--brand-tint-2); border-radius: 999px; background: var(--brand-tint); color: var(--brand); font-size: .73rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; }
.path-card h3 { margin-bottom: 8px; }
.path-card p { color: var(--text-soft); font-size: .94rem; }
.path-card__links { margin-top: auto; padding-top: 8px; }
.path-card__links a { font-weight: 700; font-size: .92rem; }
.path-card__links a::after { content: "\2192"; margin-left: 7px; }

.resource-note { display: flex; flex-direction: column; gap: 4px; margin-bottom: 36px; padding: 18px 20px; border: 1px solid var(--brand-tint-2); border-left: 4px solid var(--brand); border-radius: var(--radius-sm); background: var(--brand-tint); }
.resource-note b { color: var(--brand-dark); }
.resource-note span { color: var(--text-soft); font-size: .92rem; }
.principles { display: grid; gap: 16px; grid-template-columns: 1fr; }
.principle { display: flex; gap: 16px; align-items: flex-start; padding: 20px; border: 1px solid var(--border); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow-sm); }
.principle__mark { flex: 0 0 auto; display: grid; place-items: center; width: 38px; height: 38px; border-radius: 10px; background: var(--brand); color: #fff; font-size: .78rem; font-weight: 800; }
.principle h3 { margin-bottom: 5px; font-size: 1.02rem; }
.principle p { color: var(--text-soft); font-size: .9rem; margin: 0; }
.resource-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.error-page { display: grid; place-items: center; min-height: 540px; padding: 64px 0; background: radial-gradient(circle at 50% 15%, var(--brand-tint) 0, rgba(238, 244, 250, 0) 52%); }
.error-panel { max-width: 760px; text-align: center; }
.error-panel h1 { font-size: 2.15rem; margin-bottom: 16px; }
.error-panel > p { max-width: 620px; margin: 0 auto 26px; color: var(--text-soft); font-size: 1.04rem; }
.error-code { font-size: clamp(5.5rem, 24vw, 10rem); line-height: .82; margin-bottom: 28px; font-weight: 800; letter-spacing: -.06em; color: transparent; background: var(--pressure-grad); -webkit-background-clip: text; background-clip: text; }
.error-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.error-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 20px; margin-top: 30px; padding-top: 22px; border-top: 1px solid var(--border); }
.error-links a { color: var(--text-soft); font-size: .92rem; font-weight: 600; }
.error-links a:hover { color: var(--brand); }

/* ---- Product hierarchy and configuration pages ---------- */
.system-chain { display: grid; gap: 14px; grid-template-columns: 1fr; align-items: stretch; }
.chain-card { padding: 22px; border: 1px solid var(--border); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow-sm); }
.chain-card__no { display: inline-grid; place-items: center; width: 32px; height: 32px; margin-bottom: 12px; border-radius: 9px; background: var(--brand); color: #fff; font-size: .78rem; font-weight: 800; }
.chain-card h3 { margin-bottom: 7px; }
.chain-card p { margin: 0; color: var(--text-soft); font-size: .92rem; }
.chain-arrow { display: none; align-self: center; color: var(--brand); font-size: 1.5rem; font-weight: 800; text-align: center; }

.config-grid { display: grid; gap: 18px; grid-template-columns: 1fr; }
.config-card { display: flex; flex-direction: column; padding: 24px; border: 1px solid var(--border); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow-sm); }
.config-card h3 { margin: 8px 0 10px; }
.config-card > p { color: var(--text-soft); }
.config-card h4 { margin: 12px 0 5px; color: var(--brand-dark); font-size: .9rem; }
.config-card h4 + p { margin: 0; font-size: .9rem; }

.product-modules { display: grid; gap: 24px; }
.product-module { display: grid; gap: 22px; padding: 26px; border: 1px solid var(--border); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow-sm); }
.product-module__intro h2 { margin: 8px 0 10px; font-size: 1.55rem; }
.product-module__intro h3 { margin: 17px 0 5px; font-size: .94rem; color: var(--brand-dark); }
.product-module__intro p { margin-bottom: 8px; color: var(--text-soft); }
.evidence-stack { display: grid; gap: 14px; }
.evidence-stack section { padding: 18px; border: 1px solid var(--border-soft); border-radius: var(--radius-sm); background: var(--surface-2); }
.evidence-stack h3 { margin-bottom: 8px; font-size: .95rem; color: var(--brand-dark); }
.evidence-stack p { margin: 0; color: var(--text-soft); font-size: .9rem; }
.product-module__foot { display: flex; flex-direction: column; gap: 14px; padding-top: 18px; border-top: 1px solid var(--border); color: var(--text-soft); font-size: .9rem; }
.spec-disclaimer { margin: 24px 0 0; padding: 16px 18px; border-left: 4px solid var(--brand); border-radius: var(--radius-sm); background: var(--brand-tint); color: var(--brand-dark); font-size: .9rem; font-weight: 650; }

/* A2 product hierarchy, disclosure rhythm and stronger entry actions */
.category-card { position: relative; overflow: hidden; }
.category-card--featured { border-color: var(--accent); box-shadow: 0 10px 30px rgba(239, 126, 46, .14); }
.category-card .btn { align-self: flex-start; margin-top: 18px; min-height: 44px; }
.category-card__note { margin-top: 10px; font-size: .82rem; color: var(--text-soft); }
.module-details { grid-column: 1 / -1; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--surface-2); overflow: hidden; }
.module-details > summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 52px; padding: 14px 18px; color: var(--brand-dark); font-weight: 750; cursor: pointer; list-style: none; }
.module-details > summary::-webkit-details-marker { display: none; }
.module-details > summary::after { content: "+"; flex: 0 0 auto; width: 28px; height: 28px; display: grid; place-items: center; border-radius: 50%; background: #fff; color: var(--brand); font-size: 1.15rem; box-shadow: var(--shadow-sm); }
.module-details[open] > summary::after { content: "−"; }
.module-details > summary:focus-visible { outline: 3px solid rgba(24,95,165,.28); outline-offset: -3px; }
.module-details > .evidence-stack { padding: 0 18px 18px; }
.product-module:has(.module-details) { align-items: start; }
.module-keyfacts { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.module-keyfacts span { padding: 6px 9px; border-radius: 7px; background: var(--brand-tint); color: var(--brand-dark); font-size: .78rem; font-weight: 700; }
.module-context { padding: 18px; border: 1px solid var(--border-soft); border-radius: var(--radius-sm); background: #fff; }
.config-card { display: flex; flex-direction: column; }
.config-details { margin-top: auto; padding-top: 14px; border-top: 1px solid var(--border-soft); }
.config-details > summary { display: flex; align-items: center; min-height: 44px; color: var(--brand); font-weight: 750; cursor: pointer; }
.config-details > summary:focus-visible { outline: 2px solid var(--brand); outline-offset: 4px; }
.config-details[open] > summary { margin-bottom: 13px; }
.config-details h4 { margin-top: 13px; }
.config-details p { font-size: .88rem; }
.compact-comparison { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius-sm); background: #fff; }
.compact-comparison table { width: 100%; min-width: 720px; border-collapse: collapse; }
.compact-comparison th, .compact-comparison td { padding: 13px 15px; text-align: left; border-bottom: 1px solid var(--border-soft); vertical-align: top; }
.compact-comparison th { color: var(--brand-dark); background: var(--surface-2); font-size: .82rem; }
.compact-comparison td { font-size: .88rem; color: var(--text-soft); }
.decision-table { overflow: hidden; border: 1px solid var(--border); border-radius: var(--radius-sm); background: #fff; }
.decision-table table { width: 100%; table-layout: fixed; border-collapse: collapse; }
.decision-table col:first-child { width: 29%; }
.decision-table col:nth-child(2), .decision-table col:nth-child(3) { width: 35.5%; }
.decision-table th, .decision-table td { padding: 10px 15px; text-align: left; border-bottom: 1px solid var(--border-soft); vertical-align: top; }
.decision-table th + th, .decision-table td + td { border-left: 1px solid var(--border-soft); }
.decision-table th { padding-block: 11px; background: var(--surface-2); color: var(--brand-dark); font-size: .82rem; }
.decision-table td { color: var(--text-soft); font-size: .88rem; line-height: 1.45; }
.decision-table > table tbody tr:last-child td, .decision-table__continuation tbody tr:last-child td { border-bottom: 0; }
.decision-table__more { border-top: 1px solid var(--border-soft); }
.decision-table__more > summary { display: flex; align-items: center; justify-content: space-between; min-height: 48px; padding: 10px 15px; cursor: pointer; list-style: none; color: var(--brand); background: var(--brand-tint); font-size: .88rem; font-weight: 750; }
.decision-table__more > summary::-webkit-details-marker { display: none; }
.decision-table__more > summary::after { content: "+"; flex: 0 0 auto; width: 28px; height: 28px; display: grid; place-items: center; border-radius: 50%; background: #fff; color: var(--brand); font-size: 1.12rem; line-height: 1; box-shadow: var(--shadow-sm); }
.decision-table__more[open] > summary::after { content: "\2212"; }
.decision-table__more > summary:focus-visible { outline: 3px solid rgba(24, 95, 165, .3); outline-offset: -3px; }
.decision-table__more[open] > summary { border-bottom: 1px solid var(--border-soft); }
.decision-table__continuation thead { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.answer-strip { padding: 22px 0; background: var(--brand-tint); border-bottom: 1px solid var(--border-soft); }
.answer-strip p { max-width: 980px; margin: 0; color: var(--text-soft); font-size: .98rem; line-height: 1.7; }
.answer-strip strong { color: var(--brand-dark); }
.decision-block { margin-top: 28px; }
.decision-block h3 { margin-bottom: 14px; color: var(--brand-dark); }
.decision-checklist { display: grid; gap: 10px; grid-template-columns: 1fr; margin: 18px 0 0; padding: 0; list-style: none; }
.decision-checklist li { position: relative; padding: 13px 14px 13px 40px; border: 1px solid var(--border-soft); border-radius: var(--radius-sm); background: #fff; color: var(--text-soft); font-size: .9rem; }
.decision-checklist li::before { content: "✓"; position: absolute; left: 15px; top: 12px; color: var(--brand); font-weight: 800; }
.decision-checklist b { color: var(--brand-dark); }
.context-links { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-top: 18px; }
.context-links a { color: var(--brand); font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }
.selection-factors { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 20px; }
.selection-factors span { padding: 7px 11px; border: 1px solid var(--border-soft); border-radius: 999px; background: #fff; color: var(--brand-dark); font-size: .82rem; font-weight: 650; }
.media-strip { display: grid; gap: 14px; grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 26px; }
.media-strip figure { margin: 0; overflow: hidden; border: 1px solid var(--border-soft); border-radius: var(--radius-sm); background: var(--surface-2); }
.media-strip img { width: 100%; height: 100%; min-height: 180px; max-height: 300px; object-fit: cover; display: block; }
.split-media { display: grid; gap: 24px; align-items: center; }
.split-media__copy { min-width: 0; }
.split-media__copy h2 { margin: 8px 0 12px; }
.split-media__copy p:last-child { margin-bottom: 0; }
.split-media__visual { margin: 0; overflow: hidden; border: 1px solid var(--border-soft); border-radius: var(--radius); background: var(--surface-2); box-shadow: var(--shadow-sm); }
.split-media__visual img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; }
.split-media--reverse .split-media__visual { order: -1; }
.visual-strip { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.visual-strip figure { position: relative; margin: 0; overflow: hidden; border: 1px solid var(--border-soft); border-radius: var(--radius-sm); background: var(--surface-2); }
.visual-strip img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; }
.visual-strip figcaption { padding: 10px 12px; color: var(--text-soft); font-size: .82rem; line-height: 1.45; }
.visual-strip--three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.system-workflow-visual { display: grid; gap: 14px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.workflow-visual { overflow: hidden; border: 1px solid var(--border-soft); border-radius: var(--radius-sm); background: #fff; box-shadow: var(--shadow-sm); }
.workflow-visual img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; }
.workflow-visual__body { padding: 14px; }
.workflow-visual__body b { display: block; margin-bottom: 4px; color: var(--brand-dark); }
.workflow-visual__body span { color: var(--text-soft); font-size: .84rem; line-height: 1.5; }
.product-visual-card { display: grid; gap: 16px; padding: 18px; border: 1px solid var(--border-soft); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow-sm); }
.product-visual-card img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; border-radius: var(--radius-sm); }
.result-comparison { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.result-comparison figure { margin: 0; overflow: hidden; border-radius: var(--radius-sm); background: var(--surface-2); border: 1px solid var(--border-soft); }
.result-comparison img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; }
.result-comparison figcaption { padding: 10px 12px; color: var(--text-soft); font-size: .82rem; }
.visual-note { margin-top: 12px; color: var(--text-soft); font-size: .82rem; line-height: 1.5; }
.product-card .thumb img { display: block; width: 100%; height: 100%; min-height: 140px; max-height: 170px; object-fit: cover; }
.visual-strip--resource { margin-top: 28px; }
.visual-strip--four { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.visual-mosaic { display: grid; gap: 14px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.visual-mosaic figure { margin: 0; overflow: hidden; border: 1px solid var(--border-soft); border-radius: var(--radius-sm); background: #fff; box-shadow: var(--shadow-sm); }
.visual-mosaic img { display: block; width: 100%; height: 220px; object-fit: cover; }
.visual-mosaic figcaption { padding: 10px 12px; color: var(--text-soft); font-size: .82rem; line-height: 1.45; }
.result-comparison--stacked { grid-template-columns: 1fr; }
.result-comparison--stacked img { aspect-ratio: 16 / 8; }

/* Battery stack measurement chain: one evidence-safe E2 engineering component */
.section--battery-chain .section__head { max-width: 900px; }
.battery-chain {
  overflow: hidden;
  border: 1px solid #1c3a55;
  border-radius: var(--radius);
  background: var(--data-bg);
  box-shadow: var(--shadow);
}
.battery-chain__visual {
  padding: 18px 18px 8px;
  border-bottom: 1px solid #294a64;
}
.battery-chain__visual svg {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1040 / 500;
}
.battery-chain__label {
  fill: #d1deea;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .08em;
}
.battery-chain__micro,
.battery-chain__sequence text,
.battery-chain__sensor-label {
  fill: #91a9bd;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .055em;
}
.battery-chain__sensor-label { fill: #8ce2db; }
.battery-chain__plate,
.battery-chain__fixture {
  fill: #637b8f;
  stroke: #c2d0dc;
  stroke-width: 1.6;
}
.battery-chain__cell {
  fill: #324f67;
  stroke: #7891a6;
  stroke-width: 1.4;
}
.battery-chain__cell--alt { fill: #3e5d75; }
.battery-chain__sensor {
  fill: #38b8b2;
  stroke: #b8f0e9;
  stroke-width: 1.4;
}
.battery-chain__active {
  fill: rgba(56, 184, 178, .12);
  stroke: #e0fff9;
  stroke-width: 1.3;
  stroke-dasharray: 5 4;
}
.battery-chain__tail {
  fill: none;
  stroke: #38b8b2;
  stroke-width: 7;
  stroke-linecap: round;
}
.battery-chain__load,
.battery-chain__bias {
  fill: none;
  stroke: #ffce3a;
  stroke-width: 2.2;
}
.battery-chain marker path { fill: #ffce3a; }
.battery-chain__reader-body {
  fill: #29465d;
  stroke: #90a8ba;
  stroke-width: 1.7;
}
.battery-chain__reader-panel {
  fill: #102b40;
  stroke: #57768d;
  stroke-width: 1.3;
}
.battery-chain__status--ready { fill: #25bcae; }
.battery-chain__status--load { fill: #ffce3a; }
.battery-chain__signal {
  fill: none;
  stroke: #56c8c0;
  stroke-width: 3;
  stroke-linecap: round;
  stroke-dasharray: 8 8;
}
.battery-chain__map-base {
  fill: #08234d;
  stroke: #7895af;
  stroke-width: 1.7;
}
.battery-chain__grid {
  stroke: #92abc2;
  stroke-opacity: .28;
  stroke-width: .75;
}
.battery-chain pattern path {
  stroke: #92abc2;
  stroke-opacity: .28;
  stroke-width: .75;
}
.battery-chain__field--cyan { fill: #16b6c8; }
.battery-chain__field--green { fill: #36c27a; }
.battery-chain__field--yellow { fill: #ffce3a; }
.battery-chain__field--orange { fill: #ff8a3c; }
.battery-chain__field--red { fill: #ef4444; }
.battery-chain__field,
.interface-diagram__map .map-field {
  transform-box: fill-box;
  transform-origin: center;
}
.battery-chain__sequence path {
  fill: none;
  stroke: #4f6c84;
  stroke-width: 1.5;
  stroke-dasharray: 5 5;
}
.battery-chain__copy {
  display: grid;
  gap: 1px;
  background: #294a64;
}
.battery-chain__copy p {
  margin: 0;
  padding: 15px 17px;
  color: #c7d6e2;
  background: #10283b;
  font-size: .88rem;
  line-height: 1.55;
}
.battery-chain__copy strong { color: #fff; }

/* Default is a representative loaded frame for no-JavaScript and reduced-motion use. */
.battery-chain__upper {
  transform: translateY(30px) rotate(1.5deg);
  transform-origin: 235px 106px;
}
.battery-chain__stack {
  transform: scaleY(.98);
  transform-origin: 235px 312px;
}
.battery-chain__bias { opacity: .9; }
.battery-chain__field--cyan { opacity: 1; }
.battery-chain__field--green { opacity: 1; }
.battery-chain__field--yellow { opacity: .96; }
.battery-chain__field--orange { opacity: .9; }
.battery-chain__field--red { opacity: .84; transform: translateX(12px); }

/* Keep the five Sensor selector results visibly tied to their interface geometry. */
[data-interface-panel="curved"] .interface-diagram__map .map-field { transform: rotate(-9deg) skewX(-8deg); }
[data-interface-panel="layered"] .interface-diagram__map .map-field--warm { transform: translate(-8px, -5px) scale(.72); }
[data-interface-panel="layered"] .interface-diagram__map .map-field--hot { transform: translate(18px, 11px) scale(.72); }
[data-interface-panel="narrow"] .interface-diagram__map .map-field { transform: scaleY(.66); }

.battery-chain.is-motion-enabled .battery-chain__upper { animation: battery-chain-load 8s ease-in-out infinite; }
.battery-chain.is-motion-enabled .battery-chain__stack { animation: battery-chain-compress 8s ease-in-out infinite; }
.battery-chain.is-motion-enabled .battery-chain__signal { animation: battery-chain-signal 8s linear infinite; }
.battery-chain.is-motion-enabled .battery-chain__status--ready { animation: battery-chain-ready 8s ease-in-out infinite; }
.battery-chain.is-motion-enabled .battery-chain__status--load { animation: battery-chain-status 8s ease-in-out infinite; }
.battery-chain.is-motion-enabled .battery-chain__bias { animation: battery-chain-bias 8s ease-in-out infinite; }
.battery-chain.is-motion-enabled .battery-chain__field--cyan { animation: battery-chain-field-cyan 8s ease-in-out infinite; }
.battery-chain.is-motion-enabled .battery-chain__field--green { animation: battery-chain-field-green 8s ease-in-out infinite; }
.battery-chain.is-motion-enabled .battery-chain__field--yellow { animation: battery-chain-field-yellow 8s ease-in-out infinite; }
.battery-chain.is-motion-enabled .battery-chain__field--orange { animation: battery-chain-field-orange 8s ease-in-out infinite; }
.battery-chain.is-motion-enabled .battery-chain__field--red { animation: battery-chain-field-red 8s ease-in-out infinite; }

@keyframes battery-chain-load {
  0%, 18.75%, 100% { transform: translateY(0) rotate(0deg); }
  37.5% { transform: translateY(24px) rotate(0deg); }
  62.5% { transform: translateY(30px) rotate(0deg); }
  81.25% { transform: translateY(28px) rotate(2.2deg); }
}
@keyframes battery-chain-compress {
  0%, 18.75%, 100% { transform: scaleY(1); }
  37.5% { transform: scaleY(.99); }
  62.5% { transform: scaleY(.975); }
  81.25% { transform: scaleY(.98); }
}
@keyframes battery-chain-signal {
  0%, 18.75%, 100% { stroke-dashoffset: 0; opacity: .28; }
  37.5%, 81.25% { stroke-dashoffset: -38; opacity: 1; }
}
@keyframes battery-chain-ready {
  0%, 18.75%, 100% { fill: #2a7597; }
  37.5%, 81.25% { fill: #25bcae; }
}
@keyframes battery-chain-status {
  0%, 18.75%, 100% { fill: #31536f; }
  37.5% { fill: #36c27a; }
  62.5% { fill: #ffce3a; }
  81.25% { fill: #ff8a3c; }
}
@keyframes battery-chain-bias {
  0%, 58%, 100% { opacity: 0; transform: translateX(-8px); }
  72%, 86% { opacity: .9; transform: translateX(0); }
}
@keyframes battery-chain-field-cyan {
  0%, 18.75%, 100% { opacity: 0; transform: scale(.72); }
  37.5% { opacity: .82; transform: scale(.87); }
  62.5% { opacity: 1; transform: scale(1); }
  81.25% { opacity: .9; transform: translateX(10px) scale(.96); }
}
@keyframes battery-chain-field-green {
  0%, 25%, 100% { opacity: 0; transform: scale(.68); }
  37.5% { opacity: .62; transform: scale(.82); }
  62.5% { opacity: 1; transform: scale(1); }
  81.25% { opacity: .92; transform: translateX(14px) scale(.97); }
}
@keyframes battery-chain-field-yellow {
  0%, 34%, 100% { opacity: 0; transform: scale(.62); }
  50% { opacity: .7; transform: scale(.86); }
  62.5% { opacity: .96; transform: scale(1); }
  81.25% { opacity: 1; transform: translateX(18px); }
}
@keyframes battery-chain-field-orange {
  0%, 41%, 100% { opacity: 0; transform: scale(.56); }
  62.5% { opacity: .9; transform: scale(1); }
  81.25% { opacity: 1; transform: translateX(23px) scale(1.02); }
}
@keyframes battery-chain-field-red {
  0%, 48%, 100% { opacity: 0; transform: scale(.5); }
  62.5% { opacity: .84; transform: scale(1); }
  81.25% { opacity: 1; transform: translateX(31px) scale(1.08); }
}

/* Sensor interface selector: one evidence-safe E3 engineering component */
.interface-selector {
  overflow: hidden;
  border: 1px solid #1c3a55;
  border-radius: var(--radius);
  background: var(--data-bg);
  box-shadow: var(--shadow);
}
.interface-tabs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  padding: 8px;
  border-bottom: 1px solid #24445f;
  background: #10273b;
}
.interface-tabs[hidden] { display: none; }
.interface-tab {
  min-width: 0;
  min-height: 48px;
  padding: 9px 12px;
  border: 1px solid #36546e;
  border-radius: 9px;
  background: #172f45;
  color: #c4d4e2;
  font: inherit;
  font-size: .82rem;
  font-weight: 700;
  line-height: 1.25;
  cursor: pointer;
}
.interface-tab:hover { border-color: #6d91ad; color: #fff; }
.interface-tab[aria-selected="true"] {
  border-color: #47c6ba;
  background: #173c4c;
  color: #fff;
  box-shadow: inset 0 -3px 0 #47c6ba;
}
.interface-tab:focus-visible {
  outline: 3px solid #ffce3a;
  outline-offset: 2px;
}
.interface-stage { padding: 10px; }
.interface-panel {
  display: grid;
  gap: 18px;
  align-items: center;
  padding: 12px;
  border: 1px solid #24445f;
  border-radius: 12px;
  background: #0e2235;
}
.interface-panel + .interface-panel { margin-top: 16px; }
.interface-panel[hidden] { display: none; }
.interface-panel__visual {
  min-width: 0;
  border: 1px solid #294a64;
  border-radius: 10px;
  background: #0b1c2c;
}
.interface-diagram {
  width: auto;
  max-width: 100%;
  max-height: 230px;
  margin: 0 auto;
  height: auto;
  aspect-ratio: 2 / 1;
}
.interface-diagram__label {
  fill: #b8cbdc;
  font-size: 12px;
  font-weight: 750;
  letter-spacing: .09em;
}
.interface-diagram__note {
  fill: #8fa8bd;
  font-size: 10px;
  font-weight: 650;
  letter-spacing: .035em;
}
.interface-diagram__part {
  fill: #627b91;
  stroke: #b8c8d5;
  stroke-width: 1.5;
}
.interface-diagram__part--lower { fill: #405c74; }
.interface-diagram__layer {
  fill: #29455d;
  stroke: #6d879d;
  stroke-width: 1.25;
}
.interface-diagram__film {
  fill: #38b8b2;
  stroke: #b8f0e9;
  stroke-width: 6;
  stroke-linecap: round;
  stroke-linejoin: round;
}
rect.interface-diagram__film { stroke-width: 1.5; }
.interface-diagram__active {
  fill: rgba(56, 184, 178, .14);
  stroke: #e0fff9;
  stroke-width: 1.4;
  stroke-dasharray: 5 4;
  stroke-linejoin: round;
}
.interface-diagram__tail {
  fill: none;
  stroke: #38b8b2;
  stroke-width: 6;
  stroke-linecap: round;
}
.interface-diagram__load {
  fill: none;
  stroke: #ffce3a;
  stroke-width: 2;
}
.interface-diagram marker path { fill: #ffce3a; }
.interface-diagram__map > rect:first-child {
  fill: #08234d;
  stroke: #6986a0;
  stroke-width: 1.5;
}
.interface-diagram__grid { stroke: #86a7c6; stroke-opacity: .28; }
.interface-diagram pattern path { stroke: #86a7c6; stroke-opacity: .32; stroke-width: .7; }
.map-field--cool { fill: #16b6c8; }
.map-field--warm { fill: #ffd84a; }
.map-field--hot { fill: #ef5c42; }
.interface-diagram__excluded {
  fill: #0b1c2c;
  stroke: #ffce3a;
  stroke-width: 1.5;
  stroke-dasharray: 4 3;
}
.interface-panel__copy { color: #d4e0ea; }
.interface-panel__kicker {
  display: inline-block;
  margin-bottom: 8px;
  color: #74d6ca;
  font-size: .72rem;
  font-weight: 750;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.interface-panel__copy h3 { margin-bottom: 9px; color: #fff; font-size: 1.4rem; }
.interface-panel__copy > p { color: #b7c8d7; font-size: .88rem; }
.interface-panel__facts { display: grid; gap: 8px; margin: 13px 0; }
.interface-panel__facts div {
  padding: 9px 10px;
  border-left: 3px solid #38b8b2;
  border-radius: 7px;
  background: #152d42;
}
.interface-panel__facts dt {
  margin-bottom: 3px;
  color: #86a7c6;
  font-size: .7rem;
  font-weight: 750;
  letter-spacing: .07em;
  text-transform: uppercase;
}
.interface-panel__facts dd { margin: 0; color: #f0f5f8; font-size: .84rem; line-height: 1.45; }
.interface-panel__compat {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px;
  margin: 0 !important;
  color: #91a9bf !important;
  font-size: .75rem !important;
  font-weight: 700;
}
.interface-panel__compat span {
  padding: 4px 8px;
  border: 1px solid #36546e;
  border-radius: 999px;
}
.interface-panel__compat b { color: #ffce3a; }
.interface-selector__note {
  margin: 0;
  padding: 0 16px 14px;
  color: #9fb3c9;
  font-size: .84rem;
  line-height: 1.55;
}

/* Systems configuration selector: connection path, acquisition and output */
.system-selector {
  overflow: hidden;
  border: 1px solid #1c3a55;
  border-radius: var(--radius);
  background: var(--data-bg);
  box-shadow: var(--shadow);
}
.system-tabs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  padding: 12px;
  border-bottom: 1px solid #24445f;
  background: #10273b;
}
.system-tabs[hidden] { display: none; }
.system-tab {
  min-width: 0;
  min-height: 48px;
  padding: 9px 10px;
  border: 1px solid #36546e;
  border-radius: 8px;
  background: #16324a;
  color: #c6d5e2;
  font: inherit;
  font-size: .78rem;
  font-weight: 700;
  line-height: 1.25;
  cursor: pointer;
}
.system-tab:hover { border-color: #58bdb4; color: #fff; }
.system-tab[aria-selected="true"] {
  border-color: #ffb038;
  background: #f7f9fb;
  color: #123f6e;
  box-shadow: inset 0 -3px 0 #f28b2e;
}
.system-tab:focus-visible,
.system-panel__link:focus-visible {
  outline: 3px solid #ffce3a;
  outline-offset: 2px;
}
.system-stage { padding: 10px; }
.system-panel {
  display: grid;
  gap: 16px;
  align-items: center;
  padding: 10px;
  border: 1px solid #24445f;
  border-radius: 12px;
  background: #0e2235;
}
.system-panel + .system-panel { margin-top: 16px; }
.system-panel[hidden] { display: none; }
.system-panel__visual {
  min-width: 0;
  overflow: hidden;
  border: 1px solid #294a64;
  border-radius: 10px;
  background: #f4f8fb;
}
.system-diagram { display: block; width: 100%; height: auto; }
.system-diagram text {
  fill: #31516d;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .06em;
}
.system-diagram__fixture rect,
.system-diagram__fixture path:not(.system-diagram__sensor):not(.system-diagram__tail):not(.system-diagram__load):not(.system-diagram__machine),
.system-diagram__reader rect {
  fill: #dbe5ec;
  stroke: #486983;
  stroke-width: 2;
}
.system-diagram__fixture--mobile circle { fill: #486983; }
.system-diagram__sensor { fill: none; stroke: #f3a43b; stroke-width: 8; }
.system-diagram__sensor--dense { stroke-dasharray: 2 3; stroke-width: 10; }
.system-diagram__tail { fill: none; stroke: #f3a43b; stroke-width: 4; }
.system-diagram__reader circle { fill: #36c27a; stroke: #123f6e; stroke-width: 1.5; }
.system-diagram__reader > path:not(.system-diagram__wireless):not(.system-diagram__pulse):not(.system-diagram__controller) {
  fill: none;
  stroke: #486983;
  stroke-width: 4;
}
.system-diagram__wireless {
  fill: none;
  stroke: #19a9c6;
  stroke-width: 3;
  stroke-dasharray: 6 5;
}
.system-diagram__pulse,
.system-diagram__controller {
  fill: none;
  stroke: #185fa5;
  stroke-width: 3;
}
.system-diagram__load { fill: none; stroke: #d76b22; stroke-width: 4; }
.system-diagram__machine { fill: none; stroke: #8298aa; stroke-width: 3; }
.system-diagram__map > rect { fill: #0b2252; stroke: #31516d; stroke-width: 2; }
.system-diagram__grid {
  fill: url("#pmSystemGrid");
  stroke: #5f7991;
  stroke-width: 1;
}
.system-diagram__grid--dense { stroke-width: .7; }
.system-diagram__field {
  fill: #ffce3a;
  stroke: #ef7044;
  stroke-width: 8;
  opacity: .88;
}
.system-diagram__field--steady { transform: skewX(-5deg); transform-origin: center; }
.system-diagram__field--mobile { fill: #36c27a; stroke: #ffb33b; }
.system-diagram__field--transient { fill: #ff8a3c; stroke: #ef4444; }
.system-diagram__field--detail { fill: #19a9c6; stroke: #ffce3a; stroke-width: 6; }
.system-diagram__field--production { fill: #36c27a; stroke: #ff8a3c; }
.system-panel__copy { padding: 2px 4px 5px; color: #d4e0ea; }
.system-panel__kicker {
  display: inline-block;
  margin-bottom: 7px;
  color: #74d6ca;
  font-size: .7rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.system-panel__copy h3 { margin-bottom: 8px; color: #fff; font-size: 1.35rem; }
.system-panel__copy > p { color: #b7c8d7; font-size: .87rem; }
.system-panel__facts { display: grid; gap: 7px; margin: 12px 0; }
.system-panel__facts div {
  padding: 8px 9px;
  border-left: 3px solid #38b8b2;
  border-radius: 7px;
  background: #152d42;
}
.system-panel__facts dt {
  margin-bottom: 2px;
  color: #86a7c6;
  font-size: .68rem;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.system-panel__facts dd { margin: 0; color: #f0f5f8; font-size: .81rem; line-height: 1.4; }
.system-panel__path {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0 0 11px;
  color: #dce7ee !important;
  font-size: .75rem !important;
  font-weight: 700;
}
.system-panel__path span {
  padding: 4px 7px;
  border: 1px solid #36546e;
  border-radius: 999px;
}
.system-panel__path b { color: #ffce3a; }
.system-panel__link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: #ffcb6c;
  font-size: .82rem;
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.system-selector__note {
  margin: 0;
  padding: 2px 16px 15px;
  color: #9fb3c9;
  font-size: .82rem;
  line-height: 1.5;
}
.page-pressure-systems .product-module__intro > .kw,
.page-pressure-systems .product-module__intro > p,
.page-pressure-systems .product-module__intro > .module-keyfacts { display: none; }
.page-pressure-systems .product-module__intro h2 { margin-bottom: 0; }
.page-pressure-systems .product-module__foot { display: none; }

.contact-visuals { display: grid; gap: 14px; }
.contact-visuals figure { margin: 0; overflow: hidden; border: 1px solid var(--border); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow-sm); }
.contact-visuals img { display: block; width: 100%; height: 170px; object-fit: cover; }
.contact-visuals figcaption { padding: 11px 13px; color: var(--text-soft); font-size: .82rem; line-height: 1.45; }
.cta-inline { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-top: 20px; }
.btn--category { min-height: 46px; padding: 12px 20px; box-shadow: 0 8px 18px rgba(24,95,165,.18); }
.footer-legal { display: flex; flex-wrap: wrap; align-items: center; gap: .55rem 1rem; }
.footer-legal a[aria-current="page"] { color: var(--brand); }
.legal-meta { margin-top: 16px; color: var(--text-soft); font-size: .9rem; }
.legal-layout { display: grid; gap: 32px; align-items: start; }
.legal-toc { padding: 22px; border: 1px solid var(--border-soft); border-radius: var(--radius); background: var(--surface-2); }
.legal-toc h2 { margin-bottom: 14px; font-size: 1.1rem; }
.legal-toc ol { margin: 0; padding-left: 1.25rem; }
.legal-toc li + li { margin-top: 8px; }
.legal-toc a { color: var(--text-soft); font-size: .9rem; }
.legal-toc a:hover { color: var(--brand); }
.legal-content { min-width: 0; }
.legal-section { scroll-margin-top: 120px; }
.legal-section + .legal-section { margin-top: 38px; padding-top: 38px; border-top: 1px solid var(--border-soft); }
.legal-section h2 { margin-bottom: 14px; font-size: 1.55rem; }
.legal-section p + p { margin-top: 14px; }

/* ============================================================
   MEDIA QUERIES — strictly separated (tablet >=768, desktop >=1024)
   ============================================================ */
@media (min-width: 768px) {
  .decision-checklist { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  h2 { font-size: 2rem; }
  .section { padding: 74px 0; }
  .page-sensor-arrays .section { padding: 62px 0; }
  .page-sensor-arrays .section--interface-selector { padding: 44px 0; }
  .section--interface-selector .section__head { max-width: 900px; margin-bottom: 24px; }
  .topbar__tag { display: inline; }
  .hero__content { padding: 50px 0 16px; }
  .hero h1 { font-size: 2.9rem; }
  .hero__sub { font-size: 1.16rem; }

  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }

  .tech { grid-template-columns: 1.05fr .95fr; gap: 44px; }
  .page-head { padding: 46px 0 10px; }
  .page-head h1 { font-size: 2.6rem; }
  .contact-grid { grid-template-columns: 1.25fr .85fr; gap: 30px; }
  .field-row { grid-template-columns: 1fr 1fr; }
  .evaluation-grid { grid-template-columns: 1.18fr .82fr; gap: 42px; }
  .app-hero { padding: 44px 0 12px; }
  .app-hero .container { grid-template-columns: 1.04fr .96fr; gap: 40px; }
  .app-hero h1 { font-size: 2.7rem; }
  .spec-panel { grid-template-columns: .92fr 1.08fr; gap: 40px; }
  .statbar { grid-template-columns: repeat(4, 1fr); }
  .workflow { grid-template-columns: repeat(4, 1fr); gap: 18px; }
  .section--battery-chain { padding: 28px 0; }
  .battery-chain__visual svg { width: auto; max-width: 100%; max-height: 270px; margin: 0 auto; }
  .battery-chain__copy { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .res-grid { grid-template-columns: repeat(2, 1fr); }
  .value-grid { grid-template-columns: repeat(3, 1fr); }
  .path-grid { grid-template-columns: repeat(3, 1fr); }
  .principles { grid-template-columns: repeat(2, 1fr); }
  .error-panel h1 { font-size: 3rem; }
  .system-chain { grid-template-columns: 1fr auto 1fr auto 1fr; }
  .chain-arrow { display: block; }
  .config-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .product-module { grid-template-columns: .92fr 1.08fr; padding: 32px; }
  .product-module__foot { grid-column: 1 / -1; flex-direction: row; align-items: center; justify-content: space-between; }
  .product-modules--compact { grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: stretch; }
  .product-modules--compact .product-module { grid-template-columns: 1fr; height: 100%; }
  .product-modules--compact .product-module__foot { grid-column: auto; margin-top: auto; flex-direction: column; align-items: flex-start; }
  .product-visual-card .workflow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .why-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
  .footer-bottom { flex-direction: row; justify-content: space-between; align-items: center; }
  .legal-layout { grid-template-columns: minmax(220px, .34fr) minmax(0, 1fr); gap: 48px; }
  .legal-toc { position: sticky; top: 116px; }
  .cta-band h2 { font-size: 2.1rem; }
  .media-strip { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .split-media { grid-template-columns: 1fr 1fr; gap: 38px; }
  .split-media--reverse .split-media__visual { order: 0; }
  .product-visual-card { grid-template-columns: .9fr 1.1fr; align-items: center; }
  .result-comparison--stacked { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .visual-mosaic { grid-template-columns: repeat(4, minmax(0, 1fr)); grid-auto-rows: 190px; }
  .visual-mosaic__lead { grid-column: span 2; grid-row: span 2; }
  .visual-mosaic img { height: 100%; }
  .interface-tabs { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .interface-panel { grid-template-columns: minmax(0, 1.35fr) minmax(250px, .65fr); gap: 20px; min-height: 260px; padding: 12px; }
  .interface-panel + .interface-panel { margin-top: 18px; }
  .interface-panel__facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .system-tabs { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .system-panel { grid-template-columns: minmax(0, 1.35fr) minmax(290px, .65fr); gap: 20px; min-height: 330px; padding: 12px; }
  .system-panel + .system-panel { margin-top: 18px; }
}

@media (max-width: 767px) {
  .neutral-interface-diagram { min-height: 190px; padding: 22px 18px 18px; }
  .neutral-interface-diagram__labels { gap: 7px; font-size: .62rem; letter-spacing: .035em; }
  .neutral-map-diagram { min-height: 210px; gap: 14px; padding: 20px; }
  .category-card .btn, .cta-inline .btn { width: 100%; justify-content: center; }
  .statbar { grid-template-columns: 1fr; }
  .module-details > summary { padding: 13px 14px; }
  .module-details > .evidence-stack { padding: 0 12px 12px; }
  .media-strip { grid-template-columns: 1fr; }
  .media-strip img { min-height: 210px; max-height: 260px; }
  .visual-strip,
  .visual-strip--three,
  .visual-strip--four,
  .system-workflow-visual,
  .result-comparison { grid-template-columns: 1fr; }
  .decision-table { overflow: visible; border: 0; background: transparent; }
  .decision-table table, .decision-table tbody, .decision-table tr, .decision-table td { display: block; width: 100%; }
  .decision-table thead { display: none; }
  .decision-table tbody { display: grid; gap: 8px; }
  .decision-table tr { overflow: hidden; border: 1px solid var(--border); border-radius: var(--radius-sm); background: #fff; box-shadow: var(--shadow-sm); }
  .decision-table td { display: grid; grid-template-columns: minmax(98px, .42fr) minmax(0, 1fr); gap: 9px; align-items: start; padding: 6px 11px; border: 0; font-size: .84rem; line-height: 1.35; }
  .decision-table td + td { border-top: 1px solid var(--border-soft); border-left: 0; }
  .decision-table td::before { content: attr(data-label); display: block; color: var(--brand-dark); font-size: .68rem; font-weight: 750; letter-spacing: .02em; line-height: 1.35; text-transform: uppercase; }
  .decision-table__more { margin-top: 8px; border: 0; }
  .decision-table__more > summary { min-height: 48px; border: 1px solid var(--border); border-radius: var(--radius-sm); }
  .decision-table__more[open] > summary { margin-bottom: 8px; border-bottom: 1px solid var(--border); }
  .visual-mosaic { grid-template-columns: 1fr; }
  .visual-mosaic img { height: auto; aspect-ratio: 4 / 3; }
  .split-media__visual img,
  .workflow-visual img,
  .product-visual-card img,
  .result-comparison img { aspect-ratio: 4 / 3; }
  .interface-stage { padding: 10px; }
  .interface-panel { padding: 10px; }
  .interface-diagram { aspect-ratio: 2 / 1; }
  .interface-panel__copy { padding: 2px 4px 5px; }
  .interface-selector__note { padding: 5px 15px 17px; }
  .system-stage { padding: 10px; }
  .system-panel { padding: 10px; }
  .system-panel__copy { padding: 2px 4px 5px; }
  .system-selector__note { padding: 5px 15px 17px; }
  .battery-chain__visual { padding: 12px 8px 6px; }
  .battery-chain__label,
  .battery-chain__micro,
  .battery-chain__sensor-label,
  .battery-chain__sequence { display: none; }
  .battery-chain__copy p { padding: 13px 15px; }
}

@media (min-width: 1024px) {
  .nav__links { display: flex; align-items: center; gap: 32px; }
  .nav__links a { color: var(--text-soft); font-weight: 600; font-size: 1.06rem; }
  .nav__links a:hover { color: var(--brand); }
  .nav__cta { display: inline-flex; font-size: 1.02rem; padding: 13px 26px; }
  .nav__toggle { display: none; }
  .nav__mobile { display: none !important; }

  .grid--4 { grid-template-columns: repeat(4, 1fr); }

  /* Hero: preserve the text-left / visual-right composition while keeping the
     carousel inside a bounded, reviewable engineering-visual panel. */
  .hero { display: block; min-height: 520px; }
  .hero .container { order: initial; }
  .hero__content { max-width: 480px; padding: 72px 0 78px; }
  .hero h1 { font-size: 3.1rem; }
  .hero__media {
    order: initial; position: absolute; top: 50%; right: max(24px, calc((100vw - var(--maxw)) / 2)); bottom: auto;
    width: min(49vw, 660px); max-width: 660px; height: auto; max-height: 410px; aspect-ratio: 16 / 10; margin: 0;
    transform: translateY(-50%);
    border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden;
    background: #edf3f7; box-shadow: var(--shadow);
  }
  .hero__media .carousel__track { position: absolute; inset: 0; aspect-ratio: auto; height: 100%; }
  .hero__media-fade { display: none; }
  .carousel__dots { justify-content: flex-end; right: 22px; left: auto; bottom: 18px; }

  /* 5-card application row balancing on wide screens */
  .apps-grid { display: grid; grid-template-columns: repeat(6, 1fr); }
  .apps-grid .app-card { grid-column: span 2; }
  .apps-grid .app-card:nth-child(4) { grid-column: 2 / span 2; }
  .apps-grid .app-card:nth-child(5) { grid-column: 4 / span 2; }
  .battery-chain { display: grid; grid-template-columns: minmax(0, 2.35fr) minmax(250px, .65fr); }
  .battery-chain__visual { display: grid; align-items: center; border-right: 1px solid #294a64; border-bottom: 0; }
  .battery-chain__visual svg { max-height: 340px; }
  .battery-chain__copy { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
  .battery-chain.is-motion-enabled .battery-chain__upper,
  .battery-chain.is-motion-enabled .battery-chain__stack,
  .battery-chain.is-motion-enabled .battery-chain__signal,
  .battery-chain.is-motion-enabled .battery-chain__status,
  .battery-chain.is-motion-enabled .battery-chain__bias,
  .battery-chain.is-motion-enabled .battery-chain__field {
    animation: none !important;
  }
}

/* Resources content center and technical guide template */
.resource-hero .app-hero__media { background: linear-gradient(145deg, #0b223a, #123f6e); }
.resource-hero__diagram { width: 100%; height: 100%; min-height: 320px; padding: 28px; display: grid; place-items: center; }
.resource-hero__diagram svg { width: 100%; max-width: 560px; height: auto; }
.resource-feature { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr); gap: 34px; align-items: center; padding: 34px; border: 1px solid var(--border); border-radius: var(--radius-lg); background: #fff; box-shadow: var(--shadow-sm); }
.resource-feature__meta, .guide-meta { display: flex; flex-wrap: wrap; gap: 10px 18px; color: var(--text-soft); font-size: .82rem; }
.resource-feature__meta span, .guide-meta span { display: inline-flex; align-items: center; gap: 6px; }
.resource-feature__visual { min-height: 280px; display: grid; place-items: center; border-radius: var(--radius-md); background: linear-gradient(145deg, #0b223a, #123f6e); overflow: hidden; }
.resource-feature__visual svg { width: 100%; height: auto; }
.resource-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.resource-card { display: flex; flex-direction: column; gap: 12px; padding: 24px; border: 1px solid var(--border); border-radius: var(--radius-md); background: #fff; box-shadow: var(--shadow-sm); }
.resource-card h3, .resource-card p { margin: 0; }
.resource-card .text-link { margin-top: auto; padding-top: 4px; }
.topic-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.topic-link { display: block; padding: 18px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: #fff; color: var(--brand-dark); font-weight: 750; }
.topic-link span { display: block; margin-top: 6px; color: var(--text-soft); font-size: .84rem; font-weight: 500; }
.learning-path { counter-reset: path; display: grid; gap: 12px; max-width: 900px; }
.learning-path li { counter-increment: path; display: grid; grid-template-columns: 40px 1fr; gap: 14px; align-items: start; padding: 16px 18px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: #fff; }
.learning-path li::before { content: counter(path); width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; background: var(--brand-tint); color: var(--brand); font-weight: 800; }
.learning-path a { color: var(--brand-dark); font-weight: 750; }

.guide-hero { padding: 62px 0 48px; background: linear-gradient(145deg, #f6f9fc, #edf5fb); border-bottom: 1px solid var(--border-soft); }
.guide-hero .container { max-width: 980px; }
.guide-hero h1 { max-width: 900px; margin: 18px 0; }
.guide-kicker { color: var(--brand); font-size: .78rem; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; }
.guide-deck { max-width: 820px; color: var(--text-soft); font-size: 1.12rem; line-height: 1.72; }
.guide-layout { display: grid; grid-template-columns: 250px minmax(0, 760px); gap: 48px; justify-content: center; align-items: start; }
.guide-toc { position: sticky; top: 118px; padding: 20px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--surface-2); }
.guide-toc h2 { margin: 0 0 12px; font-size: .92rem; }
.guide-toc ol { margin: 0; padding-left: 20px; }
.guide-toc li + li { margin-top: 8px; }
.guide-toc a { color: var(--text-soft); font-size: .86rem; }
.guide-article { min-width: 0; }
.guide-article > section { scroll-margin-top: 116px; padding: 0 0 44px; }
.guide-article h2 { margin-top: 0; font-size: clamp(1.45rem, 2.3vw, 2rem); }
.guide-article h3 { margin-top: 24px; }
.guide-article p, .guide-article li { color: var(--text-soft); line-height: 1.75; }
.direct-answer { margin-bottom: 34px; padding: 24px 26px; border-left: 4px solid var(--accent); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; background: #fff8f0; color: var(--brand-dark); font-size: 1.04rem; line-height: 1.7; }
.guide-figure { margin: 8px 0 34px; border: 1px solid var(--border); border-radius: var(--radius-md); background: linear-gradient(145deg, #0b223a, #123f6e); overflow: hidden; }
.guide-figure svg { display: block; width: 100%; height: auto; }
.guide-figure figcaption { padding: 12px 16px; background: #fff; color: var(--text-soft); font-size: .84rem; }
.tire-mobile-diagram-key,
.tire-mobile-mode-key { display: none; }
.guide-table { margin: 20px 0 8px; overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius-sm); }
.guide-table table { width: 100%; min-width: 680px; border-collapse: collapse; background: #fff; }
.guide-table th, .guide-table td { padding: 13px 15px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--border-soft); }
.guide-table th { background: var(--surface-2); color: var(--brand-dark); font-size: .82rem; }
.guide-table td { color: var(--text-soft); font-size: .88rem; line-height: 1.5; }
.guide-table tr:last-child td { border-bottom: 0; }
.guide-callout { padding: 20px 22px; border: 1px solid #bed7ea; border-radius: var(--radius-sm); background: var(--brand-tint); }
.guide-related { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.guide-related a { display: block; padding: 18px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: #fff; color: var(--brand-dark); font-weight: 750; }
.guide-related a span { display: block; margin-top: 5px; color: var(--text-soft); font-size: .82rem; font-weight: 500; }
.guide-author-note { margin-top: 12px; color: var(--text-soft); font-size: .76rem; }

@media (max-width: 1100px) {
  .guide-layout { grid-template-columns: 1fr; }
  .guide-toc { position: static; }
}

@media (max-width: 620px) {
  .tire-mobile-diagram-key,
  .tire-mobile-mode-key { display: grid; gap: 7px; padding: 14px 16px; background: #f7fafc; color: var(--text-soft); font-size: .82rem; line-height: 1.45; }
  .tire-mobile-diagram-key { grid-template-columns: minmax(0, 1fr) minmax(0, 1.65fr); }
  .tire-mobile-diagram-key strong,
  .tire-mobile-mode-key strong { color: var(--brand-dark); }
  .tire-mobile-mode-key > div { display: grid; gap: 2px; padding-bottom: 7px; border-bottom: 1px solid var(--border-soft); }
  .tire-mobile-mode-key > div:last-child { padding-bottom: 0; border-bottom: 0; }
}

@media (max-width: 900px) {
  .resource-feature, .guide-layout { grid-template-columns: 1fr; }
  .guide-toc { position: static; }
  .topic-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 620px) {
  .resource-feature { padding: 22px; }
  .resource-grid, .topic-grid, .guide-related { grid-template-columns: 1fr; }
  .guide-hero { padding: 42px 0 36px; }
  .guide-layout { gap: 28px; }
  .guide-toc { padding: 18px; }
  .guide-article > section { padding-bottom: 34px; }
  .guide-table { overflow: visible; border: 0; }
  .guide-table table, .guide-table tbody, .guide-table tr, .guide-table td { display: block; min-width: 0; width: 100%; }
  .guide-table thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
  .guide-table tbody { display: grid; gap: 10px; }
  .guide-table tr { overflow: hidden; border: 1px solid var(--border); border-radius: var(--radius-sm); background: #fff; }
  .guide-table td { display: grid; grid-template-columns: minmax(108px, .42fr) minmax(0, 1fr); gap: 10px; padding: 9px 12px; border-bottom: 1px solid var(--border-soft); }
  .guide-table td:last-child { border-bottom: 0; }
  .guide-table td::before { content: attr(data-label); color: var(--brand-dark); font-size: .7rem; font-weight: 800; text-transform: uppercase; }
}