/* =========================================================================
   WeTheNorth Market - Reference Website
   Visual system: technical map / compass geometry / editorial archive
   Palette: white + red + dark red + black/graphite
   ========================================================================= */

/* ------------------------------ Tokens --------------------------------- */
:root {
  /* Light editorial surfaces */
  --paper: #ffffff;
  --paper-2: #f6f3f1;
  --paper-3: #efeae7;

  /* Ink / neutrals */
  --ink: #17110f;
  --ink-soft: #4b4340;
  --ink-faint: #8a807b;
  --line: rgba(23, 17, 15, 0.12);
  --line-strong: rgba(23, 17, 15, 0.28);

  /* Dark technical surfaces */
  --graphite: #161113;
  --graphite-2: #1f181b;
  --graphite-3: #2a2124;
  --graphite-line: rgba(255, 255, 255, 0.10);
  --graphite-line-strong: rgba(255, 255, 255, 0.22);
  --on-dark: #f3ece9;
  --on-dark-soft: #b7aca8;

  /* Red system */
  --red: #c8102e;
  --red-bright: #e6183a;
  --crimson: #7d0f20;
  --crimson-deep: #4d0a15;
  --red-tint: rgba(200, 16, 46, 0.08);
  --red-glow: rgba(200, 16, 46, 0.28);

  /* Type */
  --font-display: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
  --font-body: "Instrument Sans", "Segoe UI", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "Cascadia Code", monospace;

  /* Rhythm */
  --wrap: 1200px;
  --gutter: clamp(1.15rem, 4vw, 3rem);
  --radius: 4px;
  --radius-lg: 8px;

  /* Motion */
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --ease-io: cubic-bezier(0.77, 0, 0.175, 1);
  --dur: 0.55s;

  --header-h: 68px;
}

/* ------------------------------ Reset ---------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 20px);
}

body {
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  font-size: 1.02rem;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

ul { list-style: none; padding: 0; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--ink);
}

p { max-width: 68ch; }

::selection { background: var(--red); color: #fff; }

:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  background: var(--red);
  color: #fff;
  padding: 10px 16px;
  z-index: 200;
  border-radius: var(--radius);
  transition: top 0.2s var(--ease-out);
}
.skip-link:focus { top: 12px; }

/* ------------------------- Background field ---------------------------- */
/* Thin coordinate grid + faint red points, fixed, non-interactive */
.field {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-color: var(--paper);
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px),
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size:
    120px 120px, 120px 120px,
    24px 24px, 24px 24px;
  opacity: 0.55;
}
.field::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, var(--red) 1.6px, transparent 2px),
    radial-gradient(circle, var(--red) 1.6px, transparent 2px);
  background-size: 360px 360px, 360px 360px;
  background-position: 60px 90px, 240px 300px;
  opacity: 0.16;
}
.field::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(1200px 700px at 85% -5%, var(--red-tint), transparent 60%),
    radial-gradient(900px 600px at -10% 110%, rgba(23,17,15,0.05), transparent 60%);
}

/* --------------------------- Layout helpers ---------------------------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: clamp(4rem, 9vw, 7.5rem); position: relative; }
.section--tight { padding-block: clamp(3rem, 6vw, 4.5rem); }

/* Dark technical band */
.band-dark {
  background: var(--graphite);
  color: var(--on-dark);
  position: relative;
  overflow: hidden;
}
.band-dark h1,
.band-dark h2,
.band-dark h3,
.band-dark h4 { color: var(--on-dark); }
.band-dark::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--graphite-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--graphite-line) 1px, transparent 1px);
  background-size: 44px 44px, 44px 44px;
  opacity: 0.5;
  pointer-events: none;
  mask-image: radial-gradient(120% 100% at 50% 0%, #000, transparent 85%);
}
.band-dark .wrap { position: relative; z-index: 1; }

.band-tint { background: var(--paper-2); }

/* --------------------------- Section header ---------------------------- */
.sec-head { margin-bottom: clamp(2rem, 4vw, 3rem); max-width: 62ch; }
.sec-kicker {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--red);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1rem;
}
.sec-kicker::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--red);
}
.band-dark .sec-kicker { color: var(--red-bright); }
.sec-title {
  font-size: clamp(1.9rem, 4.6vw, 3.1rem);
}
.sec-lead {
  margin-top: 1.15rem;
  color: var(--ink-soft);
  font-size: 1.08rem;
}
.band-dark .sec-lead { color: var(--on-dark-soft); }

/* ------------------------------ Buttons -------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.92rem 1.5rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.16s var(--ease-out), background 0.2s var(--ease-out),
    color 0.2s var(--ease-out), border-color 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out);
  white-space: nowrap;
}
.btn svg { width: 15px; height: 15px; flex: none; }
.btn:active { transform: scale(0.97); }

.btn--primary {
  background: var(--red);
  color: #fff;
  box-shadow: 0 12px 26px -14px var(--red-glow);
}
.btn--primary:hover { background: var(--red-bright); box-shadow: 0 16px 32px -12px var(--red-glow); }

.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn--ghost:hover { border-color: var(--red); color: var(--red); }
.band-dark .btn--ghost,
.hero .btn--ghost,
.page-hero .btn--ghost { color: var(--on-dark); border-color: var(--graphite-line-strong); }
.band-dark .btn--ghost:hover,
.hero .btn--ghost:hover,
.page-hero .btn--ghost:hover { color: var(--red-bright); border-color: var(--red-bright); }

.btn--sm { padding: 0.66rem 1rem; font-size: 0.74rem; }

/* ------------------------------ Header --------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(14px) saturate(150%);
  -webkit-backdrop-filter: blur(14px) saturate(150%);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 0.3s var(--ease-out), border-color 0.3s var(--ease-out);
}
.site-header.is-scrolled { box-shadow: 0 10px 30px -20px rgba(23,17,15,0.4); }

.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

/* Logo */
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  flex: none;
}
.logo-mark {
  width: 34px;
  height: 34px;
  flex: none;
}
.logo-mark .needle { fill: var(--red); }
.logo-mark .ring,
.logo-mark .rose { stroke: var(--ink); }
.logo-text {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.78rem;
  line-height: 1;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
}
.logo-text span {
  display: block;
  color: var(--red);
  font-size: 0.66rem;
  letter-spacing: 0.3em;
  margin-top: 3px;
}

/* Primary nav */
.nav { display: flex; align-items: center; gap: 0.35rem; }
.nav a {
  position: relative;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  padding: 0.55rem 0.85rem;
  border-radius: var(--radius);
  transition: color 0.2s var(--ease-out), background 0.2s var(--ease-out);
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0.85rem;
  right: 0.85rem;
  bottom: 0.28rem;
  height: 2px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.28s var(--ease-out);
}
.nav a:hover { color: var(--ink); }
.nav a:hover::after { transform: scaleX(0.4); }
.nav a[aria-current="page"] { color: var(--ink); }
.nav a[aria-current="page"]::after { transform: scaleX(1); }

/* Hamburger */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: transparent;
  cursor: pointer;
  position: relative;
  flex: none;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 50%;
  width: 20px;
  height: 2px;
  background: var(--ink);
  transform: translateX(-50%);
  transition: transform 0.3s var(--ease-out), opacity 0.2s var(--ease-out), top 0.3s var(--ease-out);
}
.nav-toggle span { top: 50%; margin-top: -1px; }
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { top: 0; transform: translateX(-50%) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { top: 0; transform: translateX(-50%) rotate(-45deg); }

/* ------------------------------ Hero ----------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  background: var(--graphite);
  color: var(--on-dark);
  min-height: min(92vh, 820px);
  display: flex;
  align-items: center;
  padding-block: clamp(3.5rem, 8vw, 6rem);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(900px 700px at 78% 30%, rgba(200,16,46,0.22), transparent 62%),
    radial-gradient(700px 600px at 12% 90%, rgba(125,15,32,0.28), transparent 60%);
  pointer-events: none;
}
.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}
.hero .wrap { position: relative; z-index: 2; width: 100%; }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.hero-coords {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--red-bright);
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 1.6rem;
}
.hero-coords::before { content: ""; width: 30px; height: 1px; background: var(--red-bright); }
.hero h1 {
  font-size: clamp(2.7rem, 8vw, 5.4rem);
  color: #fff;
  letter-spacing: -0.035em;
}
.hero h1 em { font-style: normal; color: var(--red-bright); }
.hero-sub {
  margin-top: 1.5rem;
  font-size: clamp(1.02rem, 1.6vw, 1.2rem);
  color: var(--on-dark-soft);
  max-width: 52ch;
}
.hero-actions {
  margin-top: 2.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}
.hero-meta {
  margin-top: 2.6rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.6rem 2.4rem;
  border-top: 1px solid var(--graphite-line);
  padding-top: 1.6rem;
}
.hero-meta div { min-width: 110px; }
.hero-meta dt {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--red-bright);
  margin-bottom: 0.35rem;
}
.hero-meta dd { color: var(--on-dark); font-size: 0.94rem; }

/* Hero visual (right column) - compass card */
.hero-visual {
  position: relative;
  aspect-ratio: 1 / 1;
  border: 1px solid var(--graphite-line-strong);
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.02);
  overflow: hidden;
}
.hero-visual svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-visual .corner {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  color: var(--on-dark-soft);
  padding: 0.5rem 0.6rem;
}
.hero-visual .c-tl { top: 0; left: 0; }
.hero-visual .c-tr { top: 0; right: 0; }
.hero-visual .c-bl { bottom: 0; left: 0; }
.hero-visual .c-br { bottom: 0; right: 0; color: var(--red-bright); }

/* ------------------------------ Prose ---------------------------------- */
.prose > * + * { margin-top: 1.15rem; }
.prose p { color: var(--ink-soft); }
.band-dark .prose p { color: var(--on-dark-soft); }
.prose h3 { font-size: 1.35rem; margin-top: 2.4rem; }
.prose strong { color: var(--ink); font-weight: 600; }
.band-dark .prose strong { color: var(--on-dark); }
.prose a { color: var(--red); border-bottom: 1px solid var(--red-tint); transition: border-color 0.2s var(--ease-out); }
.prose a:hover { border-bottom-color: var(--red); }

.two-col {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}

/* ------------------------------ Cards ---------------------------------- */
.card-grid {
  display: grid;
  gap: 1.15rem;
  grid-template-columns: repeat(auto-fill, minmax(255px, 1fr));
}
.card {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.6rem 1.5rem 1.7rem;
  overflow: hidden;
  transition: transform 0.3s var(--ease-out), border-color 0.3s var(--ease-out),
    box-shadow 0.3s var(--ease-out);
}
.card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--red);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.35s var(--ease-out);
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  box-shadow: 0 24px 44px -30px rgba(23,17,15,0.5);
}
.card:hover::before { transform: scaleY(1); }
.card-index {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--red);
  display: block;
  margin-bottom: 0.9rem;
}
.card h3 { font-size: 1.16rem; margin-bottom: 0.55rem; }
.card p { font-size: 0.95rem; color: var(--ink-soft); }
.card-icon {
  width: 40px; height: 40px;
  margin-bottom: 1rem;
  color: var(--red);
}
.card-icon svg { width: 100%; height: 100%; }

.band-dark .card {
  background: var(--graphite-2);
  border-color: var(--graphite-line);
}
.band-dark .card:hover { border-color: var(--graphite-line-strong); box-shadow: none; }
.band-dark .card p { color: var(--on-dark-soft); }

/* Card as link */
a.card { display: block; }
a.card .card-more {
  margin-top: 1rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--red);
  display: inline-flex;
  gap: 0.4rem;
  align-items: center;
}

/* ------------------------- Flow diagram (home) ------------------------- */
.flow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  max-width: 460px;
  margin-inline: auto;
}
.flow-node {
  width: 100%;
  border: 1px solid var(--graphite-line-strong);
  border-radius: var(--radius-lg);
  background: var(--graphite-2);
  padding: 1.1rem 1.4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  position: relative;
}
.flow-node .fn-label {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.02em;
  font-size: 1.05rem;
  color: var(--on-dark);
}
.flow-node .fn-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--on-dark-soft);
}
.flow-node .fn-idx {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--red-bright);
}
.flow-arrow {
  width: 2px;
  height: 34px;
  background: linear-gradient(var(--red), var(--crimson));
  position: relative;
}
.flow-arrow::after {
  content: "";
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 7px; height: 7px;
  border-right: 2px solid var(--red);
  border-bottom: 2px solid var(--red);
}
.flow-node--accent { border-color: var(--red); background: linear-gradient(135deg, rgba(200,16,46,0.16), var(--graphite-2)); }

/* --------------------- Architecture layer diagram ---------------------- */
.layers {
  display: grid;
  gap: 0.9rem;
}
.layer {
  display: grid;
  grid-template-columns: 78px 1fr;
  align-items: stretch;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--paper);
  overflow: hidden;
  transition: border-color 0.3s var(--ease-out), transform 0.3s var(--ease-out);
}
.layer:hover { border-color: var(--red); transform: translateX(4px); }
.layer-num {
  background: var(--graphite);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.layer-num::after {
  content: "";
  position: absolute;
  right: 0; top: 20%; bottom: 20%;
  width: 3px;
  background: var(--red);
}
.layer-body { padding: 1.15rem 1.4rem; }
.layer-body h3 { font-size: 1.12rem; margin-bottom: 0.3rem; }
.layer-body p { font-size: 0.93rem; color: var(--ink-soft); }
.band-dark .layer { background: var(--graphite-2); border-color: var(--graphite-line); }
.band-dark .layer-num { background: #000; }
.band-dark .layer-body p { color: var(--on-dark-soft); }

/* ---------------------- Node map (arch / security) --------------------- */
.nodemap {
  position: relative;
  border: 1px solid var(--graphite-line);
  border-radius: var(--radius-lg);
  background: var(--graphite-2);
  padding: 1.2rem;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}
.nodemap svg { width: 100%; height: 100%; display: block; }

/* --------------------------- Principles list --------------------------- */
.principles { display: grid; gap: 0; }
.principle {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 1.4rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
  align-items: baseline;
}
.principle:last-child { border-bottom: 1px solid var(--line); }
.principle .p-num {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--red);
  letter-spacing: 0.1em;
}
.principle h3 { font-size: 1.2rem; margin-bottom: 0.4rem; }
.principle p { color: var(--ink-soft); font-size: 0.96rem; }
.band-dark .principle { border-color: var(--graphite-line); }
.band-dark .principle p { color: var(--on-dark-soft); }

/* ----------------------------- Timeline -------------------------------- */
.timeline { position: relative; padding-left: 1.6rem; }
.timeline::before {
  content: "";
  position: absolute;
  left: 4px; top: 8px; bottom: 8px;
  width: 2px;
  background: linear-gradient(var(--red), var(--crimson));
}
.tl-item { position: relative; padding: 0 0 1.9rem 1.2rem; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: "";
  position: absolute;
  left: -1.6rem; top: 6px;
  width: 11px; height: 11px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--red);
}
.tl-item h3 { font-size: 1.08rem; margin-bottom: 0.3rem; }
.tl-item p { color: var(--ink-soft); font-size: 0.94rem; }

/* -------------------------- Info panel (specs) ------------------------- */
.panel {
  border: 1px solid var(--graphite-line);
  border-radius: var(--radius-lg);
  background: var(--graphite-2);
  overflow: hidden;
}
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.4rem;
  border-bottom: 1px solid var(--graphite-line);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--on-dark-soft);
}
.panel-head .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--red); }
.panel-row {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 1rem;
  padding: 0.95rem 1.4rem;
  border-bottom: 1px solid var(--graphite-line);
  font-size: 0.92rem;
}
.panel-row:last-child { border-bottom: none; }
.panel-row .k {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--red-bright);
  text-transform: uppercase;
}
.panel-row .v { color: var(--on-dark); }

/* ---------------------------- Notice box ------------------------------- */
.notice {
  border: 1px solid var(--red);
  border-left-width: 4px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(200,16,46,0.10), rgba(125,15,32,0.06));
  padding: clamp(1.6rem, 3vw, 2.4rem);
}
.notice-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 1rem;
}
.notice-tag svg { width: 16px; height: 16px; }
.notice h3 { font-size: 1.3rem; margin-bottom: 0.7rem; }
.notice p { color: var(--ink-soft); }
.band-dark .notice p { color: var(--on-dark-soft); }
.band-dark .notice-tag { color: var(--red-bright); }

/* --------------------------- Links reference --------------------------- */
.refs {
  display: grid;
  gap: 1.4rem;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}
.ref-cell {
  position: relative;
  border: 1px solid var(--graphite-line);
  border-radius: var(--radius-lg);
  background: var(--graphite-2);
  padding: 1.8rem 1.7rem;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: border-color 0.3s var(--ease-out), transform 0.3s var(--ease-out);
}
.ref-cell::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--graphite-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--graphite-line) 1px, transparent 1px);
  background-size: 26px 26px;
  opacity: 0.35;
  pointer-events: none;
  mask-image: radial-gradient(90% 70% at 80% 10%, #000, transparent 80%);
}
.ref-cell:hover { border-color: var(--red); transform: translateY(-4px); }
.ref-cell > * { position: relative; z-index: 1; }
.ref-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.3rem;
}
.ref-idx {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--red-bright);
}
.ref-status {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--on-dark-soft);
  border: 1px solid var(--graphite-line-strong);
  border-radius: 999px;
  padding: 0.28rem 0.7rem;
}
.ref-label {
  font-family: var(--font-mono);
  font-size: clamp(1.3rem, 3vw, 1.7rem);
  color: #fff;
  letter-spacing: 0.02em;
  word-break: break-all;
  margin-bottom: 1.2rem;
}
.ref-meta {
  display: grid;
  gap: 0.7rem;
  margin-bottom: 1.5rem;
}
.ref-meta div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.86rem;
  border-bottom: 1px dashed var(--graphite-line);
  padding-bottom: 0.6rem;
}
.ref-meta .k {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--on-dark-soft);
}
.ref-meta .v { color: var(--on-dark); text-align: right; }
.ref-desc { color: var(--on-dark-soft); font-size: 0.9rem; margin-bottom: 1.5rem; }
.ref-actions { display: flex; gap: 0.7rem; margin-top: auto; flex-wrap: wrap; }
.ref-actions .btn { flex: 1 1 auto; justify-content: center; }

.copied-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--ink);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  padding: 0.8rem 1.3rem;
  border-radius: var(--radius);
  border-left: 3px solid var(--red);
  opacity: 0;
  pointer-events: none;
  z-index: 200;
  transition: opacity 0.25s var(--ease-out), transform 0.25s var(--ease-out);
}
.copied-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ------------------------------ Modal ---------------------------------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 150;
  display: grid;
  place-items: center;
  padding: 1.2rem;
  background: rgba(12, 8, 9, 0.62);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s var(--ease-out), visibility 0.25s var(--ease-out);
}
.modal.open { opacity: 1; visibility: visible; }
.modal-box {
  width: min(560px, 100%);
  background: var(--graphite-2);
  color: var(--on-dark);
  border: 1px solid var(--graphite-line-strong);
  border-radius: var(--radius-lg);
  padding: clamp(1.6rem, 4vw, 2.4rem);
  position: relative;
  transform: scale(0.94);
  opacity: 0;
  transition: transform 0.3s var(--ease-out), opacity 0.3s var(--ease-out);
  max-height: 88vh;
  overflow: auto;
}
.modal.open .modal-box { transform: scale(1); opacity: 1; }
.modal-box h3 { color: #fff; font-size: 1.4rem; }
.modal-box .modal-label {
  font-family: var(--font-mono);
  color: var(--red-bright);
  letter-spacing: 0.06em;
  margin: 0.4rem 0 1.2rem;
  font-size: 0.95rem;
}
.modal-box p { color: var(--on-dark-soft); font-size: 0.95rem; }
.modal-box .panel-row { grid-template-columns: 140px 1fr; padding-inline: 0; }
.modal-close {
  position: absolute;
  top: 0.9rem; right: 0.9rem;
  width: 38px; height: 38px;
  border: 1px solid var(--graphite-line-strong);
  background: transparent;
  color: var(--on-dark);
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 1.1rem;
  transition: background 0.2s var(--ease-out), color 0.2s var(--ease-out);
}
.modal-close:hover { background: var(--red); color: #fff; border-color: var(--red); }

/* ------------------------------- FAQ ----------------------------------- */
.faq { display: grid; gap: 0.8rem; max-width: 860px; }
.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--paper);
  overflow: hidden;
  transition: border-color 0.3s var(--ease-out);
}
.faq-item:hover { border-color: var(--line-strong); }
.faq-item.open { border-color: var(--red); }
.faq-q {
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  cursor: pointer;
  padding: 1.25rem 1.4rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.faq-q .faq-n {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--red);
  flex: none;
}
.faq-icon {
  margin-left: auto;
  flex: none;
  width: 22px; height: 22px;
  position: relative;
}
.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: var(--red);
  transition: transform 0.3s var(--ease-out), opacity 0.3s var(--ease-out);
}
.faq-icon::before { top: 50%; left: 0; right: 0; height: 2px; transform: translateY(-50%); }
.faq-icon::after { left: 50%; top: 0; bottom: 0; width: 2px; transform: translateX(-50%); }
.faq-item.open .faq-icon::after { transform: translateX(-50%) scaleY(0); opacity: 0; }
.faq-a {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.35s var(--ease-out);
}
.faq-a-inner { overflow: hidden; }
.faq-item.open .faq-a { grid-template-rows: 1fr; }
.faq-a p {
  padding: 0 1.4rem 1.4rem;
  color: var(--ink-soft);
  font-size: 0.98rem;
  max-width: none;
}
.faq-a p + p { padding-top: 0.9rem; }

/* --------------------------- Related links ----------------------------- */
.crosslinks {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}
.crosslink {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.3rem 1.4rem;
  background: var(--paper);
  transition: transform 0.3s var(--ease-out), border-color 0.3s var(--ease-out);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.crosslink:hover { transform: translateY(-3px); border-color: var(--red); }
.crosslink .cl-k {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--red);
}
.crosslink .cl-t { font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; }
.crosslink .cl-d { font-size: 0.86rem; color: var(--ink-soft); }
.band-dark .crosslink { background: var(--graphite-2); border-color: var(--graphite-line); }
.band-dark .crosslink .cl-d { color: var(--on-dark-soft); }

/* --------------------------- Breadcrumb -------------------------------- */
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--on-dark-soft);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 1.5rem;
}
.breadcrumb a { color: var(--red-bright); }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb .sep { opacity: 0.5; }

/* Page hero (interior pages) */
.page-hero {
  background: var(--graphite);
  color: var(--on-dark);
  position: relative;
  overflow: hidden;
  padding-block: clamp(3.2rem, 7vw, 5.5rem);
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(700px 500px at 88% 20%, rgba(200,16,46,0.20), transparent 60%);
  pointer-events: none;
}
.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--graphite-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--graphite-line) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.4;
  mask-image: radial-gradient(120% 120% at 100% 0%, #000, transparent 75%);
  pointer-events: none;
}
.page-hero .wrap { position: relative; z-index: 1; }
.page-hero h1 {
  color: #fff;
  font-size: clamp(2.2rem, 6vw, 3.8rem);
  max-width: 18ch;
}
.page-hero .ph-lead {
  margin-top: 1.2rem;
  color: var(--on-dark-soft);
  font-size: 1.1rem;
  max-width: 58ch;
}

/* ------------------------------ Footer --------------------------------- */
.site-footer {
  background: #000;
  color: var(--on-dark-soft);
  padding-block: clamp(3rem, 6vw, 4.5rem) 2rem;
  position: relative;
  overflow: hidden;
}
.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 50px 50px;
  opacity: 0.5;
  pointer-events: none;
}
.site-footer .wrap { position: relative; z-index: 1; }
.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .logo-text { color: #fff; }
.footer-brand p { color: var(--on-dark-soft); font-size: 0.9rem; margin-top: 1.1rem; max-width: 46ch; }
.footer-nav h4 {
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 1.1rem;
  font-weight: 500;
}
.footer-nav ul { display: grid; gap: 0.7rem; }
.footer-nav a {
  font-size: 0.92rem;
  color: var(--on-dark-soft);
  transition: color 0.2s var(--ease-out);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.footer-nav a::before {
  content: "";
  width: 5px; height: 5px;
  background: var(--red);
  transform: rotate(45deg);
  opacity: 0;
  transition: opacity 0.2s var(--ease-out);
}
.footer-nav a:hover { color: #fff; }
.footer-nav a:hover::before { opacity: 1; }
.footer-bottom {
  padding-top: 1.8rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
}
.footer-disclaimer {
  margin-top: 1.5rem;
  font-size: 0.8rem;
  color: var(--ink-faint);
  line-height: 1.7;
  max-width: 90ch;
}

/* --------------------------- Reveal anim ------------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
  will-change: opacity, transform;
}
[data-reveal].in { opacity: 1; transform: none; }
[data-reveal][data-delay="1"] { transition-delay: 0.08s; }
[data-reveal][data-delay="2"] { transition-delay: 0.16s; }
[data-reveal][data-delay="3"] { transition-delay: 0.24s; }
[data-reveal][data-delay="4"] { transition-delay: 0.32s; }

/* SVG draw-in for map routes */
.draw-line {
  stroke-dasharray: var(--len, 1000);
  stroke-dashoffset: var(--len, 1000);
  transition: stroke-dashoffset 1.4s var(--ease-io);
}
.in .draw-line, [data-reveal].in .draw-line { stroke-dashoffset: 0; }

/* ----------------------------- Utilities ------------------------------- */
.center { text-align: center; margin-inline: auto; }
.mt-lg { margin-top: clamp(2rem, 4vw, 3.2rem); }
.eyebrow-inline {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--red);
}

/* ---------------------------- Responsive ------------------------------- */
@media (max-width: 940px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { max-width: 440px; margin-top: 1rem; }
  .footer-top { grid-template-columns: 1fr; }
}

@media (max-width: 800px) {
  .nav-toggle { display: block; }
  .nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    padding: 0.6rem var(--gutter) 1.2rem;
    transform: translateY(-14px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.28s var(--ease-out), transform 0.28s var(--ease-out), visibility 0.28s;
    box-shadow: 0 24px 40px -30px rgba(0,0,0,0.5);
    max-height: calc(100vh - var(--header-h));
    overflow: auto;
  }
  .nav.open {
    opacity: 1;
    visibility: visible;
    transform: none;
    pointer-events: auto;
  }
  .nav a {
    padding: 0.95rem 0.4rem;
    font-size: 0.9rem;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
  }
  .nav a::after { display: none; }
  .nav a[aria-current="page"] {
    color: var(--red);
    padding-left: 0.9rem;
    border-left: 3px solid var(--red);
  }
  /* Stagger nav items when open */
  .nav.open a {
    animation: navIn 0.4s var(--ease-out) both;
  }
  .nav.open a:nth-child(1) { animation-delay: 0.04s; }
  .nav.open a:nth-child(2) { animation-delay: 0.08s; }
  .nav.open a:nth-child(3) { animation-delay: 0.12s; }
  .nav.open a:nth-child(4) { animation-delay: 0.16s; }
  .nav.open a:nth-child(5) { animation-delay: 0.20s; }
  .nav.open a:nth-child(6) { animation-delay: 0.24s; }
}
@keyframes navIn {
  from { opacity: 0; transform: translateX(-10px); }
  to { opacity: 1; transform: none; }
}

@media (max-width: 620px) {
  body { font-size: 0.98rem; }
  .panel-row { grid-template-columns: 1fr; gap: 0.3rem; }
  .layer { grid-template-columns: 60px 1fr; }
  .principle { grid-template-columns: 50px 1fr; gap: 1rem; }
  .ref-actions { flex-direction: column; }
  .hero-meta { gap: 1.2rem 1.6rem; }
}

/* Touch: neutralize hover lifts */
@media (hover: none) {
  .card:hover, .ref-cell:hover, .layer:hover, .crosslink:hover { transform: none; }
}

/* --------------------- Reduced motion (mandatory) ---------------------- */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
  .draw-line { stroke-dashoffset: 0; }
}