/* ==========================================================================
   DVD Decrypter — dvddecrypter.org
   Design seed: S11 Classic Desktop Reimagined
   Theme: DARK (single, fixed) · Palette: sampled from the DVD drive icon — LED blue + brushed silver + disc sheen
   --------------------------------------------------------------------------
   1. Fonts & tokens        6. Homepage sections     11. Supporting pages
   2. Base                  7. FAQ                   12. Footer
   3. Utilities & buttons   8. Download              13. Motion
   4. Header                9. Blog listing          14. Responsive
   5. Hero                 10. Blog article
   ========================================================================== */

/* 1. FONTS & TOKENS ------------------------------------------------------- */
@font-face { font-family: "Poppins"; font-style: normal; font-weight: 400; font-display: swap; src: url("../fonts/poppins-400.woff2") format("woff2"); }
@font-face { font-family: "Poppins"; font-style: normal; font-weight: 500; font-display: swap; src: url("../fonts/poppins-500.woff2") format("woff2"); }
@font-face { font-family: "Poppins"; font-style: normal; font-weight: 600; font-display: swap; src: url("../fonts/poppins-600.woff2") format("woff2"); }
@font-face { font-family: "Poppins"; font-style: normal; font-weight: 700; font-display: swap; src: url("../fonts/poppins-700.woff2") format("woff2"); }

:root {
  color-scheme: dark;

  /* Surfaces — charcoal sampled from the icon's "DVD" label (#1a191c · #282828 · #3c3c3d) */
  --bg: #151517;
  --bg-2: #1a191c;
  --surface: #202022;
  --surface-2: #28282a;
  --surface-3: #303032;
  --line: #3c3c3d;
  --line-soft: #2b2b2d;

  /* Text — brushed silver sampled from the drive body (#eaeaea · #cacccc) */
  --text: #eaeaea;
  --text-2: #cacccc;
  --muted: #9c9da0;

  /* Primary — the blue power LED (#349ad5 core · #76bfe8 glow) */
  --blue: #349ad5;
  --blue-glow: #76bfe8;
  --blue-deep: #16354a;
  --cta: #349ad5;
  --cta-strong: #4fade3;
  --on-cta: #06131c;

  /* Supporting — aluminium body (#cacccc · #8e8e8e) */
  --silver: #cacccc;
  --silver-deep: #8e8e8e;

  /* Accent — the disc's iridescent sheen (lilac · mint · orchid) */
  --sheen-lilac: #cfc4e1;
  --sheen-mint: #d1eacf;
  --sheen-orchid: #d5b8db;
  --sheen: linear-gradient(90deg, var(--blue-glow) 0%, var(--sheen-lilac) 52%, var(--sheen-mint) 100%);
  --aluminium: linear-gradient(180deg, #f4f4f4 0%, #dadbda 55%, #c3c4c6 100%);

  /* Craft */
  --bevel: inset 1px 1px 0 rgba(255, 255, 255, .06), inset -1px -1px 0 rgba(0, 0, 0, .35);
  --bevel-strong: inset 1px 1px 0 rgba(255, 255, 255, .1), inset -1px -1px 0 rgba(0, 0, 0, .45);
  --engrave: 0 1px 0 rgba(255, 255, 255, .04);
  --shadow-1: 0 1px 2px rgba(0, 0, 0, .35);
  --shadow-2: 0 12px 30px -14px rgba(0, 0, 0, .6);

  --r-xs: 4px;
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;

  --font: "Poppins", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", "Cascadia Mono", Consolas, "Liberation Mono", monospace;

  --container: 1180px;
  --narrow: 760px;
  --header-h: 68px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

/* 2. BASE ---------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--header-h) + 16px); }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-2);
  background: var(--bg);
  background-image: radial-gradient(1200px 520px at 85% -120px, rgba(118, 191, 232, .07), transparent 70%);
  background-repeat: no-repeat;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; height: auto; }
h1, h2, h3, h4 { color: var(--text); font-weight: 600; line-height: 1.2; margin: 0 0 .6em; letter-spacing: -.01em; }
h1 { font-size: clamp(2rem, 1.35rem + 2.4vw, 3.05rem); letter-spacing: -.02em; }
h2 { font-size: clamp(1.55rem, 1.2rem + 1.25vw, 2.2rem); }
h3 { font-size: 1.15rem; }
h4 { font-size: 1rem; }
p { margin: 0 0 1.05em; }
a { color: var(--blue-glow); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--text); }
strong { color: var(--text); font-weight: 600; }
code, kbd { font-family: var(--mono); font-size: .88em; color: var(--silver); background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--r-xs); padding: .05em .4em; }
kbd { box-shadow: var(--bevel); }
ul, ol { padding-left: 1.2em; }
hr { border: 0; border-top: 1px solid var(--line-soft); box-shadow: var(--engrave); margin: 2rem 0; }
::selection { background: var(--blue-deep); color: var(--text); }

:focus { outline: none; }
:focus-visible { outline: 2px solid var(--cta); outline-offset: 3px; border-radius: 3px; }

.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 200;
  background: var(--cta); color: var(--on-cta); padding: .6rem 1rem; border-radius: var(--r-sm);
  font-weight: 600; text-decoration: none; transition: top .2s var(--ease);
}
.skip-link:focus { top: 12px; color: var(--on-cta); }

.visually-hidden { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

/* 3. UTILITIES & BUTTONS -------------------------------------------------- */
.container { width: min(100% - 32px, var(--container)); margin-inline: auto; }
.container-narrow { width: min(100% - 32px, var(--narrow)); margin-inline: auto; }
.section { padding: clamp(56px, 7vw, 92px) 0; position: relative; }
.section--tint { background: var(--bg-2); border-block: 1px solid var(--line-soft); }
.section-head { max-width: 640px; margin-bottom: clamp(28px, 4vw, 44px); }
.section-head p { color: var(--text-2); margin: 0; }
.section-head--split { max-width: none; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 32px; align-items: end; }

.label {
  display: inline-flex; align-items: center; gap: .55em;
  font-family: var(--mono); font-size: .74rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--silver); margin-bottom: 14px;
}
.label::before { content: ""; width: 18px; height: 1px; background: currentColor; opacity: .7; }
.label--plain::before { display: none; }
.lead { font-size: 1.1rem; color: var(--text-2); max-width: 58ch; }
.muted { color: var(--muted); }
.mono { font-family: var(--mono); }

.btn {
  --btn-bg: var(--surface-2); --btn-fg: var(--text);
  display: inline-flex; align-items: center; justify-content: center; gap: .6em;
  min-height: 46px; padding: .7rem 1.25rem;
  font: 600 .95rem/1.1 var(--font); letter-spacing: .01em;
  color: var(--btn-fg); background: var(--btn-bg);
  border: 1px solid var(--line); border-radius: var(--r-sm);
  box-shadow: var(--bevel), var(--shadow-1);
  text-decoration: none; cursor: pointer;
  transition: transform .18s var(--ease), background-color .18s var(--ease), box-shadow .18s var(--ease), border-color .18s var(--ease);
}
.btn:hover { color: var(--btn-fg); transform: translateY(-1px); border-color: #4c4d51; }
.btn:active { transform: translateY(1px); box-shadow: inset 1px 1px 2px rgba(0, 0, 0, .45); }
.btn svg { width: 18px; height: 18px; flex: none; }
.btn--primary { --btn-bg: var(--cta); --btn-fg: var(--on-cta); border-color: #2a82b8; box-shadow: inset 1px 1px 0 rgba(255, 255, 255, .35), inset -1px -1px 0 rgba(8, 50, 80, .35), 0 8px 20px -10px rgba(52, 154, 213, .5); }
.btn--primary:hover { --btn-bg: var(--cta-strong); border-color: #3b95cb; }
.btn--lg { min-height: 54px; padding: .9rem 1.6rem; font-size: 1.02rem; }
.btn--sm { min-height: 38px; padding: .5rem .95rem; font-size: .88rem; }

.text-link {
  display: inline-flex; align-items: center; gap: .45em;
  color: var(--text); font-weight: 500; text-decoration: none;
  background: linear-gradient(var(--blue), var(--blue)) 0 100% / 0 1px no-repeat;
  transition: background-size .25s var(--ease), color .2s;
  padding-bottom: 2px;
}
.text-link:hover { background-size: 100% 1px; color: var(--blue-glow); }
.text-link .arrow { transition: transform .2s var(--ease); }
.text-link:hover .arrow { transform: translateX(3px); }

.plate {
  position: relative; background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--r-md); box-shadow: var(--bevel);
}
.screws::before, .screws::after {
  content: ""; position: absolute; top: 12px; width: 7px; height: 7px; border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #58595d, #252527); box-shadow: 0 0 0 1px rgba(0, 0, 0, .35);
}
.screws::before { left: 12px; }
.screws::after { right: 12px; }

.chip {
  display: inline-flex; align-items: center; gap: .4em; font: 500 .75rem/1 var(--font);
  padding: .38rem .6rem; border-radius: var(--r-xs); border: 1px solid var(--line);
  background: var(--surface-2); color: var(--text-2); white-space: nowrap;
}
.chip--ok { color: var(--sheen-mint); border-color: rgba(209, 234, 207, .32); background: rgba(209, 234, 207, .07); }
.chip--warn { color: var(--silver); border-color: rgba(202, 204, 204, .3); background: rgba(202, 204, 204, .07); }
.chip--no { color: var(--sheen-orchid); border-color: rgba(213, 184, 219, .3); background: rgba(213, 184, 219, .07); }
.dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; }

.breadcrumb { font-size: .85rem; color: var(--muted); margin-bottom: 18px; }
.breadcrumb ol { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: .35em; }
.breadcrumb li + li::before { content: "/"; margin-right: .35em; color: var(--line); }
.breadcrumb a { color: var(--text-2); text-decoration: none; }
.breadcrumb a:hover { color: var(--blue-glow); }

/* 4. HEADER -------------------------------------------------------------- */
.site-header { position: sticky; top: 0; z-index: 100; }
.site-header .bar {
  background: rgba(21, 21, 23, .94);
  border-bottom: 1px solid #0b0b0c;
  box-shadow: 0 1px 0 rgba(255, 255, 255, .04);
  transition: background-color .25s var(--ease), box-shadow .25s var(--ease);
}
@supports (backdrop-filter: blur(8px)) { .site-header .bar { background: rgba(21, 21, 23, .86); backdrop-filter: saturate(140%) blur(10px); } }
.site-header.is-scrolled .bar { box-shadow: 0 1px 0 rgba(255, 255, 255, .04), 0 10px 24px -16px rgba(0, 0, 0, .8); }
.header-inner { height: var(--header-h); display: flex; align-items: center; gap: 20px; }

.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; color: var(--text); flex: none; }
.brand img { width: 40px; height: 40px; filter: drop-shadow(0 2px 4px rgba(0, 0, 0, .45)); }
.brand-word { display: flex; flex-direction: column; line-height: 1.05; }
.brand-word strong { font-size: 1.02rem; font-weight: 600; letter-spacing: -.01em; }
.brand-word span { font-family: var(--mono); font-size: .64rem; letter-spacing: .14em; color: var(--muted); text-transform: uppercase; margin-top: 3px; }
.brand:hover { color: var(--text); }

.main-nav { margin-left: auto; display: flex; align-items: center; gap: 14px; }
.nav-list { list-style: none; margin: 0; padding: 4px; display: flex; gap: 2px; border: 1px solid var(--line-soft); border-radius: var(--r-sm); background: rgba(255, 255, 255, .015); box-shadow: inset 0 1px 2px rgba(0, 0, 0, .35); }
.nav-list a {
  display: block; padding: .42rem .72rem; border-radius: var(--r-xs);
  color: var(--text-2); text-decoration: none; font-size: .88rem; font-weight: 500;
  border: 1px solid transparent; transition: color .18s, background-color .18s, border-color .18s;
}
.nav-list a:hover { color: var(--text); background: var(--surface-2); border-color: var(--line); box-shadow: var(--bevel); }
.nav-list a.is-active, .nav-list a[aria-current="page"] { color: var(--text); background: var(--surface-3); border-color: var(--line); box-shadow: var(--bevel-strong); }
.nav-list a.is-active::after, .nav-list a[aria-current="page"]::after { content: ""; display: block; height: 2px; margin-top: 3px; border-radius: 2px; background: var(--blue); }

.scroll-meter { position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; pointer-events: none; }
.scroll-meter span { display: block; height: 100%; width: 100%; transform-origin: 0 50%; transform: scaleX(0); background: var(--sheen); opacity: .85; }

.nav-toggle {
  display: none; margin-left: auto; width: 44px; height: 44px; border-radius: var(--r-sm);
  background: var(--surface-2); border: 1px solid var(--line); box-shadow: var(--bevel); cursor: pointer; color: var(--text);
  align-items: center; justify-content: center;
}
.nav-toggle .bars, .nav-toggle .bars::before, .nav-toggle .bars::after { display: block; width: 18px; height: 2px; background: currentColor; border-radius: 2px; transition: transform .25s var(--ease), opacity .2s; }
.nav-toggle .bars { position: relative; }
.nav-toggle .bars::before, .nav-toggle .bars::after { content: ""; position: absolute; left: 0; }
.nav-toggle .bars::before { top: -6px; }
.nav-toggle .bars::after { top: 6px; }
.nav-toggle[aria-expanded="true"] .bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .bars::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .bars::after { transform: translateY(-6px) rotate(-45deg); }

/* 5. HERO ---------------------------------------------------------------- */
.hero { padding: clamp(44px, 6vw, 80px) 0 clamp(56px, 7vw, 92px); position: relative; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr); gap: clamp(32px, 5vw, 64px); align-items: center; }
.hero h1 { max-width: 15ch; }
.hero h1 em { font-style: normal; color: var(--blue-glow); }
@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .hero h1 em { background: var(--sheen); -webkit-background-clip: text; background-clip: text; color: transparent; -webkit-box-decoration-break: clone; box-decoration-break: clone; }
}
.hero .lead { margin-bottom: 28px; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 22px; margin-bottom: 34px; }
.hero-note { font-size: .86rem; color: var(--muted); display: flex; align-items: center; gap: .5em; }

.spec-strip {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--surface);
  box-shadow: var(--bevel); overflow: hidden; margin: 0;
}
.spec-strip div { padding: 12px 14px; border-right: 1px solid var(--line-soft); }
.spec-strip div:last-child { border-right: 0; }
.spec-strip dt { font-family: var(--mono); font-size: .66rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.spec-strip dd { margin: 3px 0 0; color: var(--text); font-weight: 500; font-size: .92rem; }

.hero-art { position: relative; margin: 0; }
.hero-art svg { width: 100%; height: auto; filter: drop-shadow(0 26px 40px rgba(0, 0, 0, .45)); }
.hero-art figcaption { margin-top: 12px; font-size: .78rem; color: var(--muted); font-family: var(--mono); letter-spacing: .04em; text-align: right; }

/* 6. HOMEPAGE SECTIONS ---------------------------------------------------- */

/* About — editorial + fact column */
.about-grid { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(260px, .9fr); gap: clamp(32px, 6vw, 80px); align-items: start; }
.about-statement { font-size: clamp(1.25rem, 1rem + .9vw, 1.7rem); line-height: 1.45; color: var(--text); font-weight: 500; letter-spacing: -.01em; margin-bottom: 26px; }
.about-statement span { color: var(--silver); }
.about-body { columns: 2 280px; column-gap: 40px; }
.about-body p { break-inside: avoid; }
.about-figure { margin: 28px 0 0; display: grid; grid-template-columns: 120px 1fr; gap: 20px; align-items: center; padding-top: 24px; border-top: 1px solid var(--line-soft); }
.about-figure img { width: 120px; height: auto; }
.about-figure figcaption { font-size: .9rem; color: var(--muted); }

.fact-column { padding: 26px 24px 18px; }
.fact-column h3 { font-family: var(--mono); font-size: .74rem; letter-spacing: .14em; text-transform: uppercase; color: var(--silver); font-weight: 500; margin: 6px 0 16px; text-align: center; }
.fact-list { margin: 0; }
.fact-list div { display: grid; grid-template-columns: 1fr auto; gap: 12px; padding: 11px 0; border-top: 1px dashed var(--line); }
.fact-list dt { color: var(--muted); font-size: .88rem; }
.fact-list dd { margin: 0; color: var(--text); font-weight: 500; font-size: .9rem; text-align: right; }
.fact-column .fine { font-size: .78rem; color: var(--muted); margin: 14px 0 0; line-height: 1.55; }

/* Features — large diagram + narrow functional blocks */
.features-grid { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 48px); align-items: stretch; }
.mode-board { padding: clamp(22px, 3vw, 34px); display: flex; flex-direction: column; }
.mode-board-head { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding-bottom: 16px; border-bottom: 1px solid var(--line-soft); margin-bottom: 22px; }
.mode-board-head h3 { margin: 0; }
.mode-board-head span { font-family: var(--mono); font-size: .72rem; color: var(--muted); letter-spacing: .1em; }
.mode-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; flex: 1; }
.mode {
  position: relative; padding: 18px 18px 16px; border-radius: var(--r-sm);
  background: linear-gradient(180deg, var(--surface-2), var(--surface)); border: 1px solid var(--line);
  box-shadow: var(--bevel); transition: border-color .2s, transform .2s var(--ease);
}
.mode:hover { border-color: rgba(118, 191, 232, .5); transform: translateY(-2px); }
.mode-top { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.engraved {
  width: 40px; height: 40px; flex: none; border-radius: 8px; display: grid; place-items: center;
  background: #18181a; border: 1px solid #0e0e10; box-shadow: inset 1px 1px 2px rgba(0, 0, 0, .6), 0 1px 0 rgba(255, 255, 255, .05);
  color: var(--silver);
}
.engraved svg { width: 22px; height: 22px; }
.mode h4 { margin: 0; font-size: 1rem; }
.mode .path { font-family: var(--mono); font-size: .72rem; color: var(--blue-glow); letter-spacing: .03em; display: block; margin-top: 2px; }
.mode p { margin: 0; font-size: .9rem; color: var(--text-2); line-height: 1.6; }
.mode-board .fine { margin: 18px 0 0; font-size: .82rem; color: var(--muted); }

.func-blocks { display: grid; gap: 0; align-content: start; }
.func { display: grid; grid-template-columns: 40px 1fr; gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--line-soft); }
.func:first-child { padding-top: 4px; }
.func:last-child { border-bottom: 0; }
.func h3 { font-size: 1rem; margin: 0 0 6px; }
.func p { margin: 0; font-size: .92rem; }

/* How it works — instruction rail */
.rail { position: relative; list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 28px; counter-reset: step; }
.rail-line { position: absolute; top: 25px; left: 26px; right: 26px; height: 2px; background: var(--line); overflow: hidden; border-radius: 2px; }
.rail-line span { display: block; height: 100%; background: var(--sheen); transform-origin: 0 50%; }
.rail li { position: relative; }
.keycap {
  position: relative; z-index: 1; width: 52px; height: 52px; border-radius: 10px; display: grid; place-items: center;
  font: 600 1.15rem/1 var(--font); color: #1a191c;
  background: var(--aluminium); border: 1px solid #8e8e8e;
  box-shadow: inset 0 -4px 0 rgba(60, 60, 64, .3), inset 0 1px 0 rgba(255, 255, 255, .6), 0 6px 14px -6px rgba(0, 0, 0, .7);
  margin-bottom: 20px;
}
.rail h3 { font-size: 1.05rem; margin-bottom: 8px; }
.rail p { font-size: .92rem; margin: 0; }
.rail .where { display: inline-block; margin-top: 12px; font-family: var(--mono); font-size: .72rem; color: var(--blue-glow); background: rgba(118, 191, 232, .07); border: 1px solid rgba(118, 191, 232, .25); border-radius: var(--r-xs); padding: .25rem .5rem; }

/* Release information — metadata strip + horizontal timeline */
.release-wrap { display: grid; gap: 34px; }
.release-meta { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin: 0; }
.release-meta div { padding: 18px 18px 18px 0; }
.release-meta div + div { padding-left: 18px; border-left: 1px solid var(--line-soft); }
.release-meta dt { font-family: var(--mono); font-size: .68rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.release-meta dd { margin: 4px 0 0; color: var(--text); font-weight: 600; font-size: 1.05rem; }
.timeline { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 22px; position: relative; }
.timeline::before { content: ""; position: absolute; left: 0; right: 0; top: 7px; height: 1px; background: var(--line); }
.timeline li { position: relative; padding-top: 30px; }
.timeline li::before { content: ""; position: absolute; top: 0; left: 0; width: 15px; height: 15px; border-radius: 50%; background: var(--bg); border: 2px solid var(--silver-deep); box-shadow: 0 0 0 4px var(--bg); }
.timeline li.is-key::before { border-color: var(--cta); background: var(--cta); }
.timeline time { font-family: var(--mono); font-size: .76rem; color: var(--silver); letter-spacing: .04em; }
.timeline h3 { font-size: .98rem; margin: 6px 0 6px; }
.timeline p { font-size: .88rem; margin: 0; }

/* Compatibility — specification table */
.compat-layout { display: grid; grid-template-columns: minmax(240px, .8fr) minmax(0, 2fr); gap: clamp(28px, 5vw, 64px); align-items: start; }
.compat-aside { position: sticky; top: calc(var(--header-h) + 24px); }
.compat-aside p:not(.label) { font-size: .95rem; }
.compat-aside .note { font-size: .85rem; color: var(--muted); padding: 14px 16px; border-left: 2px solid var(--silver-deep); background: rgba(202, 204, 204, .04); border-radius: 0 var(--r-sm) var(--r-sm) 0; }
.spec-table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: .92rem; border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; background: var(--surface); box-shadow: var(--bevel); }
.spec-table caption { text-align: left; font-family: var(--mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); padding-bottom: 10px; }
.spec-table th, .spec-table td { padding: 14px 16px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line-soft); }
.spec-table thead th { font-family: var(--mono); font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); font-weight: 500; background: var(--surface-2); }
.spec-table tbody th { color: var(--text); font-weight: 500; white-space: nowrap; }
.spec-table tbody tr:last-child th, .spec-table tbody tr:last-child td { border-bottom: 0; }
.spec-table tbody tr { transition: background-color .2s; }
.spec-table tbody tr:hover { background: rgba(255, 255, 255, .015); }
.spec-table .group th { background: var(--bg-2); color: var(--silver); font-family: var(--mono); font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; font-weight: 500; padding-block: 9px; }

/* Installation — checklist + procedure */
.setup-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.3fr); gap: clamp(28px, 5vw, 56px); align-items: start; }
.checklist-plate { padding: 30px 26px 24px; }
.checklist-plate h3 { font-size: 1rem; margin-bottom: 16px; }
.checklist { list-style: none; padding: 0; margin: 0; }
.checklist li { display: grid; grid-template-columns: 22px 1fr; gap: 12px; padding: 10px 0; border-top: 1px dashed var(--line); font-size: .92rem; }
.checklist li:first-child { border-top: 0; }
.checklist .tick { width: 20px; height: 20px; border-radius: 4px; background: #18181a; border: 1px solid #0e0e10; box-shadow: inset 1px 1px 2px rgba(0, 0, 0, .6); display: grid; place-items: center; color: var(--blue-glow); margin-top: 3px; }
.checklist .tick svg { width: 12px; height: 12px; }
.procedure { list-style: none; padding: 0; margin: 0; counter-reset: proc; }
.procedure li { counter-increment: proc; position: relative; padding: 0 0 26px 58px; }
.procedure li::before { content: counter(proc, decimal-leading-zero); position: absolute; left: 0; top: 0; font-family: var(--mono); font-size: .85rem; color: var(--silver); width: 40px; height: 30px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: var(--r-xs); background: var(--surface); }
.procedure li::after { content: ""; position: absolute; left: 20px; top: 36px; bottom: 6px; width: 1px; background: var(--line-soft); }
.procedure li:last-child { padding-bottom: 0; }
.procedure li:last-child::after { display: none; }
.procedure h3 { font-size: 1rem; margin: 3px 0 4px; }
.procedure p { margin: 0; font-size: .93rem; }

/* Use cases — typography-led list, no cards */
.uses { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); column-gap: clamp(32px, 6vw, 80px); margin: 0; padding: 0; list-style: none; }
.uses li { padding: 24px 0; border-top: 1px solid var(--line-soft); display: grid; grid-template-columns: 54px 1fr; gap: 14px; }
.uses .num { font-family: var(--mono); color: var(--silver-deep); font-size: .82rem; padding-top: 4px; }
.uses h3 { font-size: 1.12rem; margin-bottom: 6px; }
.uses p { margin: 0; font-size: .95rem; }

/* Guides preview — archival journal */
.guides-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 34px; }
.guides-head .section-head { margin: 0; }
.guides-layout { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 26px; }
.guide-feature { overflow: hidden; display: flex; flex-direction: column; text-decoration: none; color: inherit; transition: border-color .2s, transform .25s var(--ease); }
.guide-feature:hover { border-color: #55565a; transform: translateY(-2px); color: inherit; }
.guide-feature img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-bottom: 1px solid var(--line); }
.guide-feature .body { padding: 22px 24px 24px; }
.guide-feature h3 { font-size: 1.3rem; margin: 6px 0 8px; }
.guide-feature p { margin: 0; font-size: .95rem; }
.catno { font-family: var(--mono); font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.catno b { color: var(--silver); font-weight: 500; }
.guide-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; align-content: start; }
.guide-list li + li { border-top: 1px solid var(--line-soft); }
.guide-row { display: grid; grid-template-columns: 112px 1fr; gap: 18px; padding: 16px 0; text-decoration: none; color: inherit; align-items: center; }
.guide-row:first-child { padding-top: 0; }
.guide-row img { width: 112px; aspect-ratio: 16 / 10; object-fit: cover; border-radius: var(--r-sm); border: 1px solid var(--line); transition: transform .25s var(--ease); }
.guide-row h3 { font-size: 1rem; margin: 4px 0 4px; transition: color .2s; }
.guide-row p { font-size: .87rem; margin: 0; color: var(--muted); }
.guide-row:hover h3 { color: var(--blue-glow); }
.guide-row:hover img { transform: scale(1.03); }

/* Troubleshooting — problem/solution reference rows */
.trouble-table { border-top: 1px solid var(--line); }
.trouble-row { display: grid; grid-template-columns: 60px minmax(0, .9fr) minmax(0, 1.4fr); gap: 24px; padding: 22px 0; border-bottom: 1px solid var(--line-soft); align-items: start; }
.trouble-row .code { font-family: var(--mono); font-size: .76rem; color: var(--silver-deep); padding-top: 3px; }
.trouble-row h3 { font-size: 1rem; margin: 0; }
.trouble-row .symptom { font-size: .85rem; color: var(--muted); margin-top: 6px; }
.trouble-row p { margin: 0; font-size: .93rem; }
.trouble-head { display: grid; grid-template-columns: 60px minmax(0, .9fr) minmax(0, 1.4fr); gap: 24px; padding: 0 0 10px; font-family: var(--mono); font-size: .68rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }

/* Safety — engraved notice plate */
.notice {
  display: grid; grid-template-columns: auto minmax(0, 1fr) minmax(0, 1fr); gap: clamp(22px, 4vw, 48px);
  padding: clamp(28px, 4vw, 44px); border-radius: var(--r-lg);
  background: linear-gradient(180deg, #232325, #1d1d1f); border: 1px solid #3c3c3d;
  box-shadow: inset 1px 1px 0 rgba(255, 255, 255, .06), inset -1px -1px 0 rgba(0, 0, 0, .4), var(--shadow-2);
}
.notice-icon { width: 64px; height: 64px; border-radius: 14px; display: grid; place-items: center; color: #1a191c; background: var(--aluminium); border: 1px solid #8e8e8e; box-shadow: inset 0 -4px 0 rgba(60, 60, 64, .3), inset 0 1px 0 rgba(255, 255, 255, .6); }
.notice-icon svg { width: 30px; height: 30px; }
.notice h2 { font-size: clamp(1.35rem, 1.1rem + .9vw, 1.8rem); }
.notice ul { list-style: none; padding: 0; margin: 0; }
.notice li { padding: 10px 0 10px 22px; position: relative; font-size: .93rem; border-top: 1px dashed #3c3c3d; }
.notice li:first-child { border-top: 0; padding-top: 0; }
.notice li::before { content: ""; position: absolute; left: 2px; top: 19px; width: 8px; height: 8px; border-radius: 2px; background: var(--silver-deep); transform: rotate(45deg); }
.notice li:first-child::before { top: 9px; }

/* Pros & cons — balanced comparison */
.verdict { display: grid; grid-template-columns: minmax(0, 1fr) 1px minmax(0, 1fr); gap: clamp(28px, 5vw, 60px); }
.verdict .divider { background: linear-gradient(var(--line), transparent); }
.verdict h3 { display: flex; align-items: center; gap: 10px; font-size: 1.1rem; padding-bottom: 14px; border-bottom: 2px solid var(--blue); margin-bottom: 8px; }
.verdict .cons h3 { border-bottom-color: var(--silver-deep); }
.verdict h3 svg { width: 20px; height: 20px; flex: none; color: var(--blue-glow); }
.verdict .cons h3 svg { color: var(--silver); }
.verdict ul { list-style: none; padding: 0; margin: 0; }
.verdict li { padding: 13px 0 13px 30px; border-bottom: 1px solid var(--line-soft); position: relative; font-size: .95rem; }
.verdict li svg { position: absolute; left: 0; top: 17px; width: 16px; height: 16px; }
.verdict .pros li svg { color: var(--blue-glow); }
.verdict .cons li svg { color: var(--silver); }

/* 7. FAQ ----------------------------------------------------------------- */
.faq-cat { display: grid; grid-template-columns: minmax(220px, .55fr) minmax(0, 1.45fr); gap: clamp(24px, 5vw, 64px); padding: 34px 0; border-top: 1px solid var(--line); }
.faq-cat:first-of-type { border-top: 0; padding-top: 0; }
.faq-cat-head { position: sticky; top: calc(var(--header-h) + 24px); align-self: start; }
.folder-tab { display: inline-flex; align-items: center; gap: 10px; padding: 8px 14px 8px 10px; border: 1px solid var(--line); border-bottom: 0; border-radius: 8px 8px 0 0; background: var(--surface-2); box-shadow: var(--bevel); font-family: var(--mono); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--silver); }
.folder-tab svg { width: 16px; height: 16px; }
.faq-cat-head h3 { font-size: 1.25rem; margin: 0; padding: 16px 0 0; border-top: 1px solid var(--line); }
.faq-cat-head p { font-size: .9rem; color: var(--muted); margin-top: 8px; }
.faq-list { border: 1px solid var(--line); border-radius: var(--r-md); background: var(--surface); box-shadow: var(--bevel); overflow: hidden; }
.faq-item + .faq-item { border-top: 1px solid var(--line-soft); }
.faq-item h4 { margin: 0; font-size: 1rem; }
.faq-q {
  width: 100%; display: grid; grid-template-columns: 34px 1fr 24px; gap: 10px; align-items: center; text-align: left;
  padding: 16px 18px; background: transparent; border: 0; cursor: pointer;
  font: 500 .97rem/1.45 var(--font); color: var(--text); transition: background-color .2s;
}
.faq-q:hover { background: rgba(255, 255, 255, .02); }
.faq-q:focus-visible { outline-offset: -3px; }
.faq-q .n { font-family: var(--mono); font-size: .74rem; color: var(--muted); }
.faq-q .chev { width: 22px; height: 22px; border-radius: 5px; display: grid; place-items: center; border: 1px solid var(--line); background: var(--surface-2); transition: transform .25s var(--ease), border-color .2s; color: var(--text-2); }
.faq-q .chev svg { width: 12px; height: 12px; }
.faq-q[aria-expanded="true"] { background: rgba(118, 191, 232, .05); }
.faq-q[aria-expanded="true"] .n { color: var(--blue-glow); }
.faq-q[aria-expanded="true"] .chev { transform: rotate(180deg); border-color: var(--blue); color: var(--blue-glow); }
.faq-a { display: grid; grid-template-rows: 1fr; visibility: visible; transition: grid-template-rows .28s var(--ease), visibility .28s; }
.faq-a > div { overflow: hidden; min-height: 0; }
.faq-a p { margin: 0; padding: 0 22px 18px 62px; font-size: .94rem; }
.js .faq-a[hidden] { display: grid; grid-template-rows: 0fr; visibility: hidden; }

/* 8. DOWNLOAD ------------------------------------------------------------- */
.download-band { position: relative; overflow: hidden; border-radius: var(--r-lg); border: 1px solid var(--line); background: linear-gradient(135deg, #18232c 0%, #1c1c1f 55%, #211f26 100%); box-shadow: var(--bevel), var(--shadow-2); }
.download-band::after { content: ""; position: absolute; inset: 0; background: repeating-linear-gradient(0deg, rgba(255, 255, 255, .012) 0 1px, transparent 1px 4px); pointer-events: none; }
.download-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.25fr); gap: clamp(28px, 5vw, 64px); align-items: center; padding: clamp(30px, 5vw, 60px); }
.download-art img { width: 100%; max-width: 420px; margin-inline: auto; }
.download-copy h2 { margin-bottom: 12px; }
.download-specs { display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0 26px; padding: 0; list-style: none; }
.download-cta { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
.download-note { margin: 22px 0 0; padding-top: 18px; border-top: 1px dashed var(--line); font-size: .84rem; color: var(--muted); }

/* Supporting CTA strip (blog/support pages) */
.cta-strip { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px; padding: 22px 26px; }
.cta-strip p { margin: 0; color: var(--text); font-weight: 500; }

/* 9. BLOG LISTING --------------------------------------------------------- */
.page-hero { padding: clamp(40px, 6vw, 72px) 0 clamp(28px, 4vw, 44px); border-bottom: 1px solid var(--line-soft); }
.page-hero h1 { max-width: 20ch; }
.page-hero .lead { margin: 0; }
.page-hero--split .container { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 40px; align-items: end; }
.archive-index { margin: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--surface); box-shadow: var(--bevel); }
.archive-index div { padding: 12px 14px; }
.archive-index div + div { border-left: 1px solid var(--line-soft); }
.archive-index dt { font-family: var(--mono); font-size: .64rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.archive-index dd { margin: 2px 0 0; color: var(--text); font-weight: 600; }

.journal-feature { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); overflow: hidden; text-decoration: none; color: inherit; margin-bottom: 44px; transition: border-color .2s; }
.journal-feature:hover { color: inherit; border-color: #55565a; }
.journal-feature img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 16 / 10; border-right: 1px solid var(--line); }
.journal-feature .body { padding: clamp(24px, 4vw, 44px); display: flex; flex-direction: column; justify-content: center; }
.journal-feature h2 { font-size: clamp(1.4rem, 1.1rem + 1vw, 1.95rem); margin: 10px 0 12px; }
.journal-feature p { font-size: .98rem; }
.journal-feature .text-link { margin-top: 6px; align-self: flex-start; }

.index-cards { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 26px; }
.index-card { position: relative; display: grid; grid-template-columns: 150px 1fr; gap: 20px; padding: 16px; height: 100%; text-decoration: none; color: inherit; border: 1px solid var(--line-soft); border-radius: var(--r-md); background: linear-gradient(180deg, rgba(255, 255, 255, .012), transparent); transition: border-color .2s, background-color .2s, transform .25s var(--ease); }
.index-card::before { content: ""; position: absolute; left: 0; top: 18px; bottom: 18px; width: 2px; background: var(--blue); border-radius: 2px; transform: scaleY(0); transition: transform .25s var(--ease); }
.index-card:hover { color: inherit; border-color: var(--line); background-color: var(--surface); transform: translateY(-2px); }
.index-card:hover::before { transform: scaleY(1); }
.index-card img { width: 150px; aspect-ratio: 4 / 3; object-fit: cover; border-radius: var(--r-sm); border: 1px solid var(--line); }
.index-card h3 { font-size: 1.02rem; margin: 6px 0 6px; }
.index-card p { font-size: .87rem; margin: 0; color: var(--muted); line-height: 1.6; }

/* 10. BLOG ARTICLE -------------------------------------------------------- */
.article-head { padding: clamp(36px, 5vw, 64px) 0 28px; }
.article-head .container { max-width: 980px; }
.article-head h1 { font-size: clamp(1.85rem, 1.3rem + 2vw, 2.7rem); max-width: 24ch; }
.article-head .deck { font-size: 1.08rem; max-width: 62ch; color: var(--text-2); }
.article-meta { display: flex; flex-wrap: wrap; gap: 8px 20px; font-size: .84rem; color: var(--muted); margin-top: 18px; }
.article-meta span { display: inline-flex; align-items: center; gap: .45em; }
.article-meta svg { width: 15px; height: 15px; flex: none; }
.article-cover { margin: 0 auto; width: min(100% - 32px, 980px); }
.article-cover img { width: 100%; border-radius: var(--r-md); border: 1px solid var(--line); box-shadow: var(--shadow-2); aspect-ratio: 16 / 9; object-fit: cover; }
.article-cover figcaption { font-size: .8rem; color: var(--muted); margin-top: 10px; font-family: var(--mono); }

.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: clamp(32px, 5vw, 64px); align-items: start; padding: clamp(36px, 5vw, 56px) 0 clamp(56px, 7vw, 88px); }
.prose { max-width: 70ch; font-size: 1.03rem; }
.prose h2 { font-size: clamp(1.35rem, 1.15rem + .7vw, 1.65rem); margin: 2.1em 0 .6em; padding-top: .2em; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 1.12rem; margin: 1.7em 0 .5em; color: var(--text); }
.prose ul, .prose ol { margin: 0 0 1.2em; }
.prose li { margin-bottom: .45em; }
.prose li::marker { color: var(--silver-deep); }
.prose blockquote { margin: 1.6em 0; padding: 16px 20px; border-left: 3px solid var(--blue); background: var(--surface); border-radius: 0 var(--r-sm) var(--r-sm) 0; color: var(--text); }
.prose .callout { margin: 1.8em 0; padding: 18px 20px; border: 1px solid #3c3c3d; border-radius: var(--r-md); background: linear-gradient(180deg, #232325, #1d1d1f); box-shadow: var(--bevel); font-size: .96rem; }
.prose .callout strong { display: block; margin-bottom: 4px; color: var(--silver); }
.prose .callout p:last-child { margin: 0; }
.prose table { width: 100%; border-collapse: collapse; margin: 1.4em 0 1.8em; font-size: .92rem; display: block; overflow-x: auto; }
.prose th, .prose td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
.prose thead th { background: var(--surface-2); font-family: var(--mono); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); font-weight: 500; }
.prose tbody th { color: var(--text); font-weight: 500; }
.takeaways { margin: 0 0 2em; padding: 20px 22px; border-radius: var(--r-md); border: 1px solid rgba(118, 191, 232, .28); background: rgba(118, 191, 232, .05); }
.takeaways h2 { font-size: .78rem !important; font-family: var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--blue-glow); margin: 0 0 10px !important; padding: 0 !important; font-weight: 500; }
.takeaways ul { margin: 0; }

.sidebar { position: sticky; top: calc(var(--header-h) + 20px); display: grid; gap: 18px; }
.side-box { padding: 20px 20px 18px; }
.side-box h2 { font-family: var(--mono); font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--silver); font-weight: 500; margin: 0 0 12px; }
.toc { list-style: none; padding: 0; margin: 0; counter-reset: toc; }
.toc li { counter-increment: toc; }
.toc a { display: grid; grid-template-columns: 26px 1fr; gap: 6px; padding: 7px 0; font-size: .88rem; color: var(--text-2); text-decoration: none; border-top: 1px dashed var(--line-soft); line-height: 1.45; }
.toc li:first-child a { border-top: 0; }
.toc a::before { content: counter(toc, decimal-leading-zero); font-family: var(--mono); font-size: .72rem; color: var(--muted); padding-top: 2px; }
.toc a:hover, .toc a.is-current { color: var(--blue-glow); }
.side-facts { margin: 0; }
.side-facts div { display: flex; justify-content: space-between; gap: 12px; padding: 7px 0; border-top: 1px dashed var(--line-soft); font-size: .86rem; }
.side-facts div:first-child { border-top: 0; }
.side-facts dt { color: var(--muted); }
.side-facts dd { margin: 0; color: var(--text); text-align: right; font-weight: 500; }
.side-download p { font-size: .88rem; margin: 0 0 14px; }
.side-download .btn { width: 100%; }
.side-related { list-style: none; margin: 0; padding: 0; }
.side-related a { display: block; padding: 8px 0; border-top: 1px dashed var(--line-soft); font-size: .88rem; color: var(--text-2); text-decoration: none; line-height: 1.45; }
.side-related li:first-child a { border-top: 0; }
.side-related a:hover { color: var(--blue-glow); }

.related { border-top: 1px solid var(--line-soft); padding: clamp(44px, 6vw, 72px) 0; background: var(--bg-2); }
.related-grid { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.related-card { display: block; text-decoration: none; color: inherit; }
.related-card img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-radius: var(--r-sm); border: 1px solid var(--line); margin-bottom: 12px; transition: transform .25s var(--ease); }
.related-card h3 { font-size: 1rem; margin: 4px 0 0; transition: color .2s; }
.related-card:hover { color: inherit; }
.related-card:hover h3 { color: var(--blue-glow); }
.related-card:hover img { transform: translateY(-2px); }

/* 11. SUPPORTING PAGES ---------------------------------------------------- */
.page-body { padding: clamp(40px, 6vw, 72px) 0 clamp(56px, 8vw, 96px); }
.split-page { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(260px, .8fr); gap: clamp(32px, 6vw, 72px); align-items: start; }
.legal-layout { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: clamp(28px, 5vw, 64px); align-items: start; }
.legal-index { position: sticky; top: calc(var(--header-h) + 20px); }
.legal-index h2 { font-family: var(--mono); font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--silver); font-weight: 500; margin-bottom: 10px; }
.legal-index ol { list-style: none; padding: 0; margin: 0; border-left: 1px solid var(--line); }
.legal-index a { display: block; padding: 6px 0 6px 14px; margin-left: -1px; border-left: 1px solid transparent; font-size: .88rem; color: var(--text-2); text-decoration: none; }
.legal-index a:hover { color: var(--text); border-left-color: var(--blue); }
.updated { font-family: var(--mono); font-size: .76rem; color: var(--muted); margin-top: 14px; }
.clauses { counter-reset: clause; }
.clauses > section { counter-increment: clause; padding: 26px 0; border-top: 1px solid var(--line-soft); display: grid; grid-template-columns: 56px minmax(0, 1fr); gap: 10px; }
.clauses > section:first-child { border-top: 0; padding-top: 0; }
.clauses > section::before { content: counter(clause, decimal-leading-zero); font-family: var(--mono); color: var(--silver-deep); font-size: .88rem; padding-top: 3px; }
.clauses h2 { font-size: 1.15rem; margin-bottom: 8px; }
.clauses p:last-child, .clauses ul:last-child { margin-bottom: 0; }
.notice-plate { padding: 26px 28px; margin-bottom: 36px; display: grid; grid-template-columns: 52px 1fr; gap: 20px; align-items: start; background: linear-gradient(180deg, #232325, #1d1d1f); border-color: #3c3c3d; }
.notice-plate .notice-icon { width: 52px; height: 52px; border-radius: 12px; }
.notice-plate .notice-icon svg { width: 24px; height: 24px; }
.notice-plate p { margin: 0; color: var(--text); }
.contact-plate { padding: 34px 30px 28px; }
.email-plain { display: block; margin: 8px 0 18px; padding: 16px 18px; font-family: var(--mono); font-size: clamp(1rem, .9rem + .5vw, 1.2rem); color: var(--text); background: #18181a; border: 1px solid #0e0e10; border-radius: var(--r-sm); box-shadow: inset 1px 1px 3px rgba(0, 0, 0, .6); user-select: all; word-break: break-all; }
.reason-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 32px; }
.reason-list li { padding: 18px 0; border-top: 1px solid var(--line-soft); }
.reason-list h3 { font-size: 1rem; margin-bottom: 4px; }
.reason-list p { margin: 0; font-size: .93rem; }
.principles { list-style: none; padding: 0; margin: 0; }
.principles li { display: grid; grid-template-columns: 40px 1fr; gap: 14px; padding: 18px 0; border-top: 1px solid var(--line-soft); }
.principles li:first-child { border-top: 0; padding-top: 0; }
.principles h3 { font-size: 1rem; margin-bottom: 4px; }
.principles p { margin: 0; font-size: .93rem; }
.coverage { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.coverage a { display: flex; justify-content: space-between; gap: 12px; padding: 12px 14px; border: 1px solid var(--line-soft); border-radius: var(--r-sm); text-decoration: none; color: var(--text-2); font-size: .92rem; transition: border-color .2s, color .2s, background-color .2s; }
.coverage a:hover { border-color: var(--line); color: var(--text); background: var(--surface); }

/* 12. FOOTER ------------------------------------------------------------- */
.site-footer { background: #111113; border-top: 1px solid #0b0b0c; box-shadow: inset 0 1px 0 rgba(255, 255, 255, .035); padding: 56px 0 26px; font-size: .92rem; }
.footer-top { display: grid; grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, 1fr)); gap: 36px; padding-bottom: 36px; }
.footer-brand p { margin: 16px 0 0; max-width: 38ch; color: var(--muted); font-size: .9rem; }
.footer-brand .email-line { margin-top: 14px; font-family: var(--mono); font-size: .82rem; color: var(--text-2); }
.footer-col h2 { font-family: var(--mono); font-size: .7rem; letter-spacing: .14em; text-transform: uppercase; color: var(--silver); font-weight: 500; margin: 6px 0 14px; padding-bottom: 10px; border-bottom: 1px solid var(--line-soft); }
.footer-col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 9px; }
.footer-col a, .footer-bottom a { color: var(--text-2); text-decoration: none; transition: color .18s; }
.footer-col a:hover, .footer-bottom a:hover { color: var(--blue-glow); }
.footer-rule { height: 4px; border-top: 1px solid var(--line-soft); border-bottom: 1px solid rgba(255, 255, 255, .03); }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 24px; padding-top: 20px; color: var(--muted); font-size: .84rem; }
.footer-bottom p { margin: 0; }
.footer-legal { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 6px 18px; }

.to-top {
  position: fixed; right: 18px; bottom: 18px; z-index: 90; width: 46px; height: 46px; border-radius: var(--r-sm);
  display: grid; place-items: center; cursor: pointer; color: var(--text);
  background: var(--surface-2); border: 1px solid var(--line); box-shadow: var(--bevel), var(--shadow-2);
  opacity: 0; visibility: hidden; transform: translateY(10px); transition: opacity .25s, transform .25s var(--ease), visibility .25s, border-color .2s;
}
.to-top svg { width: 18px; height: 18px; }
.to-top.is-visible { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { border-color: var(--blue); color: var(--blue-glow); }

/* 13. MOTION -------------------------------------------------------------- */
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }

  /* Scroll reveals (only when JS confirms support) */
  .js [data-reveal] { opacity: 0; transform: translateY(16px); transition: opacity .7s var(--ease), transform .7s var(--ease); transition-delay: var(--d, 0s); }
  .js [data-reveal].is-visible { opacity: 1; transform: none; }

  /* Instruction rail line draws once */
  .js .rail-line span { transform: scaleX(0); transition: transform 1.3s var(--ease) .2s; }
  .js .rail.is-visible .rail-line span { transform: scaleX(1); }
  .js .rail .keycap { transform: translateY(6px); opacity: 0; transition: transform .5s var(--ease), opacity .5s var(--ease); transition-delay: calc(var(--i, 0) * .22s + .2s); }
  .js .rail.is-visible .keycap { transform: none; opacity: 1; }

  /* Timeline markers */
  .js .timeline li::before { transform: scale(.4); opacity: 0; transition: transform .45s var(--ease), opacity .45s; transition-delay: calc(var(--i, 0) * .14s); }
  .js .timeline.is-visible li::before { transform: none; opacity: 1; }

  /* Hero: parts assemble once, then rest */
  .js .hero-art .p-plate { animation: plateIn .8s var(--ease) both; }
  .js .hero-art .p-drive { animation: riseIn .8s var(--ease) .25s both; }
  .js .hero-art .p-tray { transform-box: fill-box; transform-origin: 50% 0; animation: trayOut .7s var(--ease) .75s both; }
  .js .hero-art .p-disc { animation: discDrop .9s var(--ease) 1.15s both; }
  .js .hero-art .p-spin { transform-box: fill-box; transform-origin: center; animation: spinSettle 1.8s cubic-bezier(.15, .6, .2, 1) 1.5s both; }
  .js .hero-art .p-link { stroke-dasharray: 240; animation: draw 1s var(--ease) 2s both; }
  .js .hero-art .p-out-1 { animation: popIn .6s var(--ease) 2.45s both; }
  .js .hero-art .p-out-2 { animation: popIn .6s var(--ease) 2.7s both; }
  .js .hero-art .p-step { animation: fadeIn .4s ease both; animation-delay: calc(2.9s + var(--i, 0) * .18s); }
  .js .hero-art .p-led { animation: ledOn .5s ease 1.4s both; }

  .js .hero-copy > * { animation: riseIn .7s var(--ease) both; animation-delay: calc(var(--i, 0) * .08s); }
}

@keyframes plateIn { from { opacity: 0; transform: scale(.985); } to { opacity: 1; transform: none; } }
@keyframes riseIn { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
@keyframes trayOut { from { transform: scaleY(0); opacity: 0; } to { transform: scaleY(1); opacity: 1; } }
@keyframes discDrop { from { opacity: 0; transform: translateY(-46px); } to { opacity: 1; transform: none; } }
@keyframes spinSettle { from { transform: rotate(-200deg); } to { transform: rotate(0deg); } }
@keyframes draw { from { stroke-dashoffset: 240; } to { stroke-dashoffset: 0; } }
@keyframes popIn { from { opacity: 0; transform: translateY(8px) scale(.96); } to { opacity: 1; transform: none; } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes ledOn { from { fill: #3c3c3d; } to { fill: #349ad5; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
}

/* 14. RESPONSIVE ---------------------------------------------------------- */
@media (max-width: 1120px) {
  .nav-list a { padding: .42rem .55rem; font-size: .84rem; }
  .release-meta { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .release-meta div:nth-child(4) { padding-left: 0; border-left: 0; }
  .release-meta div:nth-child(n + 4) { border-top: 1px solid var(--line-soft); }
  .timeline { grid-template-columns: repeat(3, minmax(0, 1fr)); row-gap: 34px; }
  .timeline::before { display: none; }
  .footer-top { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 980px) {
  :root { --header-h: 64px; }
  .nav-toggle { display: inline-flex; }
  .main-nav {
    position: absolute; left: 0; right: 0; top: 100%; margin: 0;
    flex-direction: column; align-items: stretch; gap: 14px; padding: 16px 16px 22px;
    background: #161618; border-bottom: 1px solid var(--line); box-shadow: 0 18px 30px -18px rgba(0, 0, 0, .85);
    opacity: 0; visibility: hidden; transform: translateY(-8px); transition: opacity .2s, transform .22s var(--ease), visibility .2s;
  }
  .main-nav.is-open { opacity: 1; visibility: visible; transform: none; }
  .nav-list { flex-direction: column; padding: 6px; }
  .nav-list a { padding: .75rem .85rem; font-size: .98rem; }
  .nav-list a.is-active::after, .nav-list a[aria-current="page"]::after { display: none; }
  .nav-list a.is-active, .nav-list a[aria-current="page"] { box-shadow: inset 3px 0 0 var(--blue), var(--bevel-strong); }
  .main-nav .btn { width: 100%; }

  .hero-grid { grid-template-columns: 1fr; }
  .hero h1 { max-width: 18ch; }
  .hero-art { max-width: 560px; }
  .about-grid, .features-grid, .compat-layout, .setup-grid, .guides-layout, .download-grid, .split-page, .page-hero--split .container { grid-template-columns: 1fr; }
  .download-art { order: -1; }
  .download-art img { max-width: 300px; margin: 0; }
  .notice { grid-template-columns: 1fr; }
  .faq-cat { grid-template-columns: 1fr; gap: 18px; }
  .faq-cat-head { position: static; }
  .compat-aside { position: static; }
  .article-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .legal-layout { grid-template-columns: 1fr; }
  .legal-index { position: static; }
  .journal-feature { grid-template-columns: 1fr; }
  .journal-feature img { border-right: 0; border-bottom: 1px solid var(--line); }
  .rail { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 40px; }
  .rail-line { display: none; }
  .section-head--split { grid-template-columns: 1fr; gap: 12px; }
  .trouble-head { display: none; }
  .trouble-row { grid-template-columns: 48px minmax(0, 1fr); gap: 8px 16px; }
  .trouble-row p { grid-column: 2; }
}

@media (max-width: 720px) {
  .spec-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .spec-strip div:nth-child(2) { border-right: 0; }
  .spec-strip div:nth-child(n + 3) { border-top: 1px solid var(--line-soft); }
  .about-body { columns: 1; }
  .mode-grid { grid-template-columns: 1fr; }
  .uses { grid-template-columns: 1fr; }
  .verdict { grid-template-columns: 1fr; }
  .verdict .divider { display: none; }
  .index-cards { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; gap: 26px; }
  .sidebar { grid-template-columns: 1fr; }
  .reason-list { grid-template-columns: 1fr; }
  .guides-head { flex-direction: column; align-items: flex-start; }
  .timeline { grid-template-columns: 1fr 1fr; }
  .release-meta { grid-template-columns: 1fr 1fr; }
  .release-meta div, .release-meta div + div { padding: 14px 14px 14px 0; border-left: 0; }
  .release-meta div:nth-child(even) { padding-left: 14px; border-left: 1px solid var(--line-soft); }
  .release-meta div:nth-child(n + 3) { border-top: 1px solid var(--line-soft); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; }

  /* Compatibility table → stacked rows */
  .spec-table, .spec-table tbody, .spec-table tr, .spec-table th, .spec-table td { display: block; width: 100%; }
  .spec-table caption { display: block; width: 100%; padding: 12px 16px 4px; }
  .spec-table thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0, 0, 0, 0); }
  .spec-table tbody tr { padding: 14px 16px; border-bottom: 1px solid var(--line-soft); }
  .spec-table tbody th, .spec-table td { padding: 2px 0; border: 0; white-space: normal; }
  .spec-table td.status { margin: 6px 0; }
  .spec-table .group th { margin: -14px -16px; padding: 9px 16px; width: calc(100% + 32px); }
}

@media (max-width: 520px) {
  body { font-size: .97rem; }
  .hero-actions .btn { width: 100%; }
  .rail { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: 1fr; }
  .index-card { grid-template-columns: 1fr; }
  .index-card img { width: 100%; aspect-ratio: 16 / 9; }
  .guide-row { grid-template-columns: 88px 1fr; gap: 14px; }
  .guide-row img { width: 88px; }
  .faq-q { grid-template-columns: 28px 1fr 24px; padding: 15px 14px; }
  .faq-a p { padding: 0 16px 16px 52px; }
  .footer-top { grid-template-columns: 1fr; }
  .clauses > section { grid-template-columns: 1fr; gap: 2px; }
  .brand-word span { display: none; }
  .download-cta .btn { width: 100%; }
  .archive-index { grid-template-columns: 1fr; }
  .archive-index div + div { border-left: 0; border-top: 1px solid var(--line-soft); }
  .uses li { grid-template-columns: 40px 1fr; }
}