/* ════════════════════════════════════════════════════════════════════
   ATELIER CAL.240 — CALIBRE 240
   Landing + Shared styles — Palette Forge (Option B)
   Forge copper × haute horlogerie × dashboard.
   ════════════════════════════════════════════════════════════════════ */

/* ───────────────────────────── ROOT VARIABLES ───────────────────────────── */
:root {
  /* Forge Palette */
  --bg:       #070608;
  --paper:    #0d0a09;
  --paper-2:  #131008;
  --acc:      #c8532c;
  --acc2:     #e06840;
  --acc-hi:   #f07850;
  --acc-dim:  rgba(200,83,44,.15);
  --bd:       rgba(200,83,44,.2);
  --bd2:      rgba(240,230,216,.07);

  /* Text */
  --cream:      #f0e6d8;
  --cream-dim:  rgba(240,230,216,.55);
  --cream-mute: rgba(240,230,216,.35);

  /* Backward compat: tool.css uses --ink for button text on copper bg */
  --ink:    #070608;
  --ink-2:  #0d0a09;
  --ink-3:  #131008;

  /* Instrument accent colors */
  --cI:  #00d4ff;
  --cII: #aa55ff;
  --cIII:#d4a574;
  --cIV: #ff6b35;
  --cV:  #00ff9f;
  --cVI: #ff0080;
  --cVII:#ffd700;

  /* System color tokens (for tool.css compat) */
  --gold:        #c8532c;
  --gold-bright: #e06840;
  --gold-tint:   rgba(200,83,44,.14);
  --hair:        rgba(200,83,44,.2);
  --hair-strong: rgba(200,83,44,.4);
  --green:       #9dc6a0;
  --red:         #e0524d;

  /* Fonts */
  --font-display: "Fraunces", Georgia, serif;
  --font-ui:      "Geist", system-ui, sans-serif;
  --font-mono:    "JetBrains Mono", "Courier New", monospace;
  --f-disp:   "Fraunces", Georgia, serif;
  --f-ui:     "Geist", system-ui, sans-serif;
  --f-mono:   "JetBrains Mono", "Courier New", monospace;

  /* Layout */
  --wrap-max: 1280px;
  --pad-x:    32px;

  /* Legacy tokens needed by tool.css */
  --copper: #b87333;
  --brass:  #c9a84c;
}

/* ─────────────────────────────── RESET ──────────────────────────────────── */
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
html, body { background: var(--bg); }
body {
  font-family: var(--font-ui);
  font-size: 15px;
  line-height: 1.65;
  color: var(--cream);
  letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  min-height: 100dvh;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
img { display: block; max-width: 100%; }
ol, ul { list-style: none; }

/* ──────────────────────── GRAIN OVERLAY (fixed) ─────────────────────────── */
body::before {
  content: '';
  position: fixed; inset: 0;
  z-index: 1000;
  pointer-events: none;
  opacity: .038;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='250' height='250'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.68' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='250' height='250' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ──────────────────────── COPPER HALO (fixed) ───────────────────────────── */
body::after {
  content: '';
  position: fixed; inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 1100px 720px at 72% 18%, rgba(200,83,44,.17) 0%, transparent 56%),
    radial-gradient(ellipse 680px 520px at 8%  78%, rgba(200,83,44,.11) 0%, transparent 52%),
    radial-gradient(ellipse 900px 400px at 50% 108%,rgba(200,83,44,.08) 0%, transparent 46%),
    radial-gradient(ellipse 400px 300px at 88% 88%, rgba(224,104,64,.06) 0%, transparent 44%);
}

/* ─────────────────────────────── UTILITIES ──────────────────────────────── */
.wrap { max-width: var(--wrap-max); margin: 0 auto; padding: 0 var(--pad-x); position: relative; }
.mono { font-family: var(--font-mono); }

.section-mark {
  font: 500 10px/1 var(--font-mono);
  letter-spacing: .14em;
  color: var(--acc);
  text-transform: uppercase;
  margin-bottom: 20px;
}

.bp-rule {
  border: none;
  position: relative;
  height: 1px;
  background: var(--bd2);
  margin: 0;
}
.bp-rule::before {
  content: attr(data-n);
  position: absolute; left: 32px; top: 50%;
  transform: translateY(-50%);
  font: 500 9px/1 var(--font-mono);
  letter-spacing: .14em;
  color: var(--acc);
  background: var(--bg);
  padding: 0 10px;
}
.bp-rule::after {
  content: attr(data-ref);
  position: absolute; right: 32px; top: 50%;
  transform: translateY(-50%);
  font: 400 9px/1 var(--font-mono);
  letter-spacing: .1em;
  color: var(--cream-mute);
  background: var(--bg);
  padding: 0 10px;
}

.hairline { border: 0; border-top: 1px solid var(--bd2); margin: 0; }

.dot {
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--acc);
  vertical-align: middle;
}
.dot.live {
  background: var(--green);
  box-shadow: 0 0 10px var(--green);
  animation: pulse 1.8s infinite;
}
.up { color: var(--green); }
.dn { color: var(--red);   }

@keyframes pulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50%     { opacity: .4; transform: scale(.8); }
}

/* ─────────────────────────── CUSTOM CURSOR ──────────────────────────────── */
/* Elements created by JS for pointer:fine devices */
.cursor-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--acc);
  position: fixed; top: 0; left: 0;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%,-50%);
  transition: transform .07s ease, opacity .15s;
  mix-blend-mode: screen;
  opacity: .85;
}
.cursor-ring {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 1px solid rgba(200,83,44,.5);
  position: fixed; top: 0; left: 0;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%,-50%);
  transition: transform .22s ease, width .2s ease, height .2s ease, opacity .2s ease;
  opacity: .5;
}

/* ───────────────────────────────── TICKER ───────────────────────────────── */
.ticker-bar {
  position: fixed; top: 0; left: 0; right: 0;
  height: 28px;
  background: #0a0708;
  border-bottom: 1px solid var(--bd);
  overflow: hidden;
  z-index: 900;
  display: flex; align-items: center;
}
.ticker-track {
  display: flex;
  white-space: nowrap;
  animation: ticker 38s linear infinite;
  gap: 0;
}
.ticker-track span {
  font: 500 9px/1 var(--font-mono);
  letter-spacing: .16em;
  color: var(--cream-mute);
  padding: 0 32px;
  flex-shrink: 0;
}
.ticker-track span em { color: var(--acc); font-style: normal; }
@keyframes ticker { 0%{ transform: translateX(0) } 100%{ transform: translateX(-50%) } }

/* ───────────────────────────────── TOPBAR ───────────────────────────────── */
.topbar {
  position: fixed; top: 28px; left: 0; right: 0;
  height: 56px;
  background: rgba(7,6,8,.82);
  backdrop-filter: blur(18px) saturate(180%);
  -webkit-backdrop-filter: blur(18px) saturate(180%);
  border-bottom: 1px solid var(--bd2);
  z-index: 800;
  display: flex; align-items: center;
  padding: 0 32px;
}

/* ── Brand ── */
.brand {
  display: flex; align-items: center;
  gap: 20px;
  flex-shrink: 0;
  color: var(--cream);
}

/* ── Swiss lever escapement icon ── */
.lever-icon { width: 28px; height: 28px; color: var(--acc); flex-shrink: 0; }
.lever-arm { transform-origin: 14px 12px; animation: lever-osc .52s ease-in-out infinite alternate; }
@keyframes lever-osc { 0%{ transform: rotate(-22deg) } 100%{ transform: rotate(22deg) } }

.brand-text { display: flex; flex-direction: column; gap: 2px; }
.brand-name {
  font: 700 11px/1 var(--font-mono);
  letter-spacing: .18em;
  color: var(--cream);
  text-transform: uppercase;
}
.brand-ref {
  font: 400 8.5px/1 var(--font-mono);
  letter-spacing: .14em;
  color: var(--cream-mute);
  text-transform: uppercase;
}

/* ── Nav (visible on tool pages, compact) ── */
.topbar-spacer { flex: 1; }

.nav {
  display: flex;
  margin: 0 auto;
  gap: 2px;
}
.nav__item, .nav a {
  display: inline-flex;
  align-items: baseline;
  gap: 5px;
  padding: 7px 10px;
  color: var(--cream-dim);
  font-size: 11px;
  letter-spacing: -.005em;
  position: relative;
  transition: color .15s ease;
}
.nav__item:hover, .nav a:hover { color: var(--cream); }
.nav__rom {
  font: 500 8.5px/1 var(--font-mono);
  letter-spacing: .12em;
  color: var(--acc);
}
.nav__lbl { font-size: 11px; }
.nav__item.is-active, .nav a.is-active { color: var(--cream); }
.nav__item.is-active::after, .nav a.is-active::after {
  content: '';
  position: absolute;
  left: 10px; right: 10px; bottom: 2px;
  height: 1px;
  background: var(--acc);
}

/* ── Lang toggle ── */
.lang-toggle {
  display: flex; align-items: center;
  gap: 2px;
}
.lang-btn {
  font: 500 9px/1 var(--font-mono);
  letter-spacing: .14em;
  color: var(--cream-mute);
  padding: 5px 9px;
  border: 1px solid transparent;
  border-radius: 3px;
  cursor: pointer;
  transition: color .15s, border-color .15s;
  background: none;
  text-transform: uppercase;
}
.lang-btn.active { color: var(--acc); border-color: var(--bd); }
.lang-btn:hover:not(.active) { color: var(--cream-dim); }
.lang-sep { color: var(--cream-mute); font-size: 9px; font-family: var(--font-mono); opacity: .4; }

/* Legacy lang styles for tool.js compat */
.lang { display: inline-flex; border: 1px solid var(--hair-strong); border-radius: 99px; padding: 2px; font-family: var(--font-mono); }
.lang__btn { font-size: 10px; letter-spacing: .14em; padding: 4px 10px; border-radius: 99px; color: var(--cream-dim); }
.lang__btn.is-on { background: var(--acc); color: var(--bg); font-weight: 600; }

/* ─────────────────────────────── BUTTONS ────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 16px 26px;
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  font-family: var(--font-mono);
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
  white-space: nowrap;
}
.btn__arrow { font-size: 16px; transition: transform .2s ease; }
.btn:hover .btn__arrow { transform: translateX(4px); }

.btn--gold {
  background: linear-gradient(180deg, var(--acc2) 0%, var(--acc) 100%);
  color: var(--bg);
  box-shadow:
    0 0 0 1px rgba(224,104,64,.6),
    0 1px 0 rgba(255,255,255,.18) inset,
    0 12px 30px rgba(200,83,44,.18);
}
.btn--gold:hover {
  box-shadow:
    0 0 0 1px var(--acc2),
    0 1px 0 rgba(255,255,255,.25) inset,
    0 14px 36px rgba(200,83,44,.28);
  transform: translateY(-1px);
}
.btn--ghost { color: var(--cream); box-shadow: 0 0 0 1px var(--hair-strong); }
.btn--ghost:hover { box-shadow: 0 0 0 1px var(--cream-dim); }
.btn--lg { padding: 18px 30px; font-size: 13px; }

/* ───────────────────────────────── HERO ─────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex; align-items: center;
  padding-top: 84px;
  padding-bottom: 80px;
  z-index: 1;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 520px;
  gap: 80px;
  align-items: center;
  width: 100%;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  margin-bottom: 28px;
}
.hero-eyebrow-pill {
  font: 500 9px/1 var(--font-mono);
  letter-spacing: .16em;
  color: var(--acc);
  border: 1px solid var(--bd);
  padding: 5px 10px;
  border-radius: 20px;
  text-transform: uppercase;
  background: rgba(200,83,44,.05);
}
.hero-eyebrow-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--acc);
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot { 0%,100%{ opacity: 1; transform: scale(1) } 50%{ opacity: .5; transform: scale(.7) } }

.hero-h1 {
  font: 800 clamp(38px,4.8vw,72px)/.92 var(--font-display);
  letter-spacing: -.028em;
  color: var(--cream);
  margin-bottom: 24px;
  max-width: 580px;
}
.hero-h1 em { font-style: italic; color: var(--acc2); }

.hero-sub {
  font: 400 16px/1.7 var(--font-ui);
  color: var(--cream-dim);
  max-width: 460px;
  margin-bottom: 36px;
}
.hero-sub strong { color: var(--cream); font-weight: 500; }

/* ── Versus table ── */
.versus {
  display: grid;
  grid-template-columns: 1fr 1px 1fr;
  gap: 0;
  border: 1px solid var(--bd2);
  border-radius: 6px;
  overflow: hidden;
  background: rgba(13,10,9,.7);
}
.vs-divider { background: var(--bd2); width: 1px; }
.vs-col { padding: 16px 18px; }
.vs-col-label {
  font: 600 9px/1 var(--font-mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--bd2);
}
.vs-col.bad .vs-col-label { color: var(--cream-mute); }
.vs-col.good .vs-col-label { color: var(--acc); }
.vs-row {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 5px 0;
  border-bottom: 1px solid rgba(255,255,255,.03);
}
.vs-row:last-child { border-bottom: none; }
.vs-key { font: 400 11px/1 var(--font-ui); color: var(--cream-dim); }
.vs-val { font: 600 11px/1 var(--font-mono); letter-spacing: .04em; }
.vs-col.bad .vs-val { color: var(--cream-mute); }
.vs-col.good .vs-val { color: var(--acc2); }
.vs-col.good .vs-val.hi { color: var(--acc-hi); font-size: 13px; }

/* ── SVG Clock animations ── */
.hero-clock {
  position: relative;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
}

/* ── Node label callout (appears near hovered node) ── */
.node-label {
  position: absolute;
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: .14em;
  color: var(--cream);
  background: rgba(15,14,12,.97);
  border: 1px solid rgba(200,83,44,.45);
  padding: 5px 12px 5px 10px;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: translateY(-50%);
  transition: opacity .18s ease;
  z-index: 20;
  backdrop-filter: blur(4px);
}
.node-label.visible { opacity: 1; }
.node-label-rom {
  color: var(--acc2);
  margin-right: 7px;
  font-weight: 600;
}
.clock-svg {
  width: 100%; max-width: 500px; height: auto;
  filter: drop-shadow(0 0 60px rgba(200,83,44,.15));
}
.clock-node { cursor: pointer; transition: filter .4s; transform-box: fill-box; transform-origin: center; }
.clock-node:hover .node-circle { filter: brightness(1.7) drop-shadow(0 0 10px currentColor); }
.clock-node.active .node-circle {
  filter: brightness(2.2) drop-shadow(0 0 14px currentColor);
  animation: node-glow 1.4s ease-in-out infinite alternate;
}
@keyframes node-glow {
  0%  { filter: brightness(1.9) drop-shadow(0 0 6px currentColor); }
  100%{ filter: brightness(2.4) drop-shadow(0 0 18px currentColor); }
}
/* One-time intro pulse — signals interactivity on first load */
@keyframes node-intro {
  0%   { transform: scale(1); }
  45%  { transform: scale(1.55); }
  72%  { transform: scale(1.18); }
  100% { transform: scale(1); }
}
.clock-node.intro { animation: node-intro .65s cubic-bezier(.34,1.56,.64,1) both; }

/* Annotation below cadran */
.clock-hint {
  text-align: center;
  font-family: var(--f-mono);
  font-size: 9px;
  letter-spacing: .2em;
  color: var(--cream-mute);
  margin-top: 14px;
  opacity: 0;
  animation: hint-appear 1s ease 2.2s forwards;
  pointer-events: none;
}
@keyframes hint-appear { to { opacity: 1; } }

.svg-cage    { transform-origin: 250px 250px; animation: tourbillon 9s linear infinite; }
.svg-balance { transform-origin: 250px 250px; animation: balance-osc .52s ease-in-out infinite alternate; }
.orbit-ring  { transform-origin: 250px 250px; animation: orbit-drift 120s linear infinite; }
@keyframes tourbillon  { to{ transform: rotate(360deg) } }
@keyframes balance-osc { 0%{ transform: rotate(-28deg) } 100%{ transform: rotate(28deg) } }
@keyframes orbit-drift { to{ transform: rotate(360deg) } }

/* ─────────────────────────── SPECS STRIP ────────────────────────────────── */
.specs-strip {
  position: relative; z-index: 1;
  background: var(--paper);
  border-top: 1px solid var(--bd2);
  border-bottom: 1px solid var(--bd2);
  padding: 0;
  overflow: hidden;
}
.specs-inner {
  display: grid;
  grid-template-columns: repeat(4,1fr);
}
.spec-item {
  padding: 22px 28px;
  border-right: 1px solid var(--bd2);
  display: flex; flex-direction: column; gap: 6px;
}
.spec-item:last-child { border-right: none; }
.spec-val {
  font: 700 26px/1 var(--font-display);
  color: var(--acc2);
  letter-spacing: -.02em;
}
.spec-label {
  font: 400 10px/1.4 var(--font-mono);
  letter-spacing: .12em;
  color: var(--cream-mute);
  text-transform: uppercase;
}

/* ────────────────────────── POUR QUI SECTION ───────────────────────────── */
.pq-section {
  position: relative;
  padding: 100px 0 110px;
  z-index: 1;
}
.pq-section::before {
  content: '';
  position: absolute;
  inset: 24px -60px;
  background: var(--paper);
  border-top: 1px solid var(--bd);
  border-bottom: 1px solid var(--bd);
  transform: rotate(-.7deg);
  z-index: -1;
}
.pq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
}
.pq-panel {
  padding: 36px 40px;
  position: relative;
}
.pq-panel::before {
  content: attr(data-marker);
  position: absolute; top: 36px; right: 36px;
  font: 500 9px/1 var(--font-mono);
  letter-spacing: .16em;
  color: var(--cream-mute);
  text-transform: uppercase;
}
.pq-marker {
  font: 500 9px/1 var(--font-mono);
  letter-spacing: .16em;
  text-transform: uppercase;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--bd2);
}
.pq-panel.left .pq-marker { color: var(--cream-mute); }
.pq-panel.right .pq-marker { color: var(--acc); }
.pq-panel.right { border-left: 1px solid var(--bd); }
.pq-h3 {
  font: 700 21px/1.2 var(--font-display);
  letter-spacing: -.015em;
  margin-bottom: 14px;
  color: var(--cream);
}
.pq-panel.left .pq-h3 { color: var(--cream-dim); }
.pq-desc {
  font: 400 14px/1.7 var(--font-ui);
  color: var(--cream-dim);
  max-width: 380px;
}
.pq-panel.right .pq-desc { color: var(--cream); }
.pq-tags {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin-top: 18px;
}
.pq-tag {
  font: 500 9px/1 var(--font-mono);
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: 4px 9px;
  border-radius: 3px;
  border: 1px solid;
}
.pq-panel.left  .pq-tag { color: var(--cream-mute); border-color: rgba(255,255,255,.06); }
.pq-panel.right .pq-tag { color: var(--acc2);       border-color: var(--bd); }

/* ─────────────────────────── TERMINAL READOUT ───────────────────────────── */
.terminal-section {
  position: relative; z-index: 1;
  padding: 80px 0;
}
.terminal-label {
  font: 500 9px/1 var(--font-mono);
  letter-spacing: .16em;
  color: var(--acc);
  text-transform: uppercase;
  margin-bottom: 24px;
}
.terminal-window {
  border: 1px solid var(--bd);
  border-radius: 8px;
  overflow: hidden;
  background: rgba(10,8,7,.9);
  backdrop-filter: blur(8px);
  max-width: 760px;
}
.terminal-bar {
  background: rgba(200,83,44,.08);
  border-bottom: 1px solid var(--bd2);
  padding: 10px 16px;
  display: flex; align-items: center; gap: 8px;
}
.t-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--bd); }
.t-dot:first-child  { background: rgba(255,95,86,.5); }
.t-dot:nth-child(2) { background: rgba(255,189,46,.4); }
.t-dot:nth-child(3) { background: rgba(39,201,63,.35); }
.t-title {
  font: 500 10px/1 var(--font-mono);
  letter-spacing: .12em;
  color: var(--cream-mute);
  margin-left: 8px;
  text-transform: uppercase;
}
.terminal-body {
  padding: 24px 28px;
  min-height: 220px;
  position: relative;
}
#terminal-text {
  font: 400 13px/2 var(--font-mono);
  color: var(--cream-dim);
  white-space: pre;
  display: block;
}
#terminal-text .t-acc    { color: var(--acc2); }
#terminal-text .t-hi     { color: var(--cream); font-weight: 600; }
#terminal-text .t-dim    { color: var(--cream-mute); }
#terminal-text .t-bar-fill  { color: var(--acc); }
#terminal-text .t-bar-empty { color: var(--cream-mute); }
.cursor {
  display: inline-block;
  width: 7px; height: 14px;
  background: var(--acc);
  animation: blink .9s step-end infinite;
  vertical-align: middle;
  margin-left: 2px;
}
@keyframes blink { 0%,100%{ opacity: 1 } 50%{ opacity: 0 } }

/* ─────────────────────────── MASSIVE STAT ───────────────────────────────── */
.stat-section {
  position: relative; z-index: 1;
  padding: 60px 0 40px;
  overflow: hidden;
}
.stat-track {
  overflow: visible;
  margin-bottom: 16px;
}
.stat-big {
  display: block;
  font: 900 clamp(88px,22vw,360px)/.82 var(--font-display);
  letter-spacing: -.04em;
  background: linear-gradient(135deg, var(--acc-hi) 0%, var(--acc) 45%, #7a3318 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-left: -2vw;
  line-height: .85;
}
.stat-meta {
  padding-left: 4px;
  border-left: 2px solid var(--bd);
  margin-left: 4px;
}
.stat-lbl {
  font: 600 10px/1 var(--font-mono);
  letter-spacing: .18em;
  color: var(--acc);
  text-transform: uppercase;
  margin-bottom: 6px;
}
.stat-ctx {
  font: 400 13px/1.6 var(--font-ui);
  color: var(--cream-dim);
  max-width: 420px;
}
.stat-ctx strong { color: var(--cream); font-weight: 500; }

/* ─────────────────── INSTRUMENTS SPEC SHEET — EXPANDABLE ───────────────── */
.instr-section {
  position: relative; z-index: 1;
  padding: 80px 0 100px;
}
.instr-title {
  font: 800 clamp(28px,3.2vw,48px)/1.05 var(--font-display);
  letter-spacing: -.022em;
  color: var(--cream);
  max-width: 560px;
  margin-bottom: 48px;
}
.instr-list { border-top: 1px solid var(--bd2); }

/* Row wrapper */
.instr-row {
  border-bottom: 1px solid var(--bd2);
  position: relative;
}
.instr-row::before {
  content: '';
  position: absolute; left: -32px; right: -32px; top: 0; bottom: 0;
  background: transparent;
  transition: background .2s;
  z-index: -1;
}
.instr-row:hover::before { background: rgba(200,83,44,.04); }
.instr-row:hover .instr-num { opacity: 1; }

/* Main clickable part */
.instr-row-main {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  align-items: center;
  gap: 0;
  padding: 20px 0;
  cursor: pointer;
  user-select: none;
}

/* Expandable detail */
.instr-detail {
  max-height: 0;
  overflow: hidden;
  transition: max-height .5s cubic-bezier(.4,0,.2,1), padding .5s ease;
  padding: 0 0 0 56px;
}
.instr-row.expanded .instr-detail {
  max-height: 260px;
  padding: 4px 0 28px 56px;
}
.instr-detail-desc {
  font: 400 13px/1.75 var(--font-ui);
  color: var(--cream-dim);
  max-width: 640px;
  margin-bottom: 18px;
}
.instr-detail-cta {
  display: inline-flex; align-items: center; gap: 10px;
  font: 600 11px/1 var(--font-mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--acc2);
  text-decoration: none;
  border: 1px solid var(--bd);
  padding: 10px 18px;
  border-radius: 3px;
  transition: background .15s, color .15s, transform .12s;
  cursor: pointer;
  background: none;
}
.instr-detail-cta:hover { background: var(--acc-dim); color: var(--acc-hi); }
.instr-detail-cta:active { transform: translateY(1px); }

/* Row number */
.instr-num {
  font: 700 22px/1 var(--font-mono);
  color: var(--cream-mute);
  opacity: .6;
  transition: opacity .2s, color .2s;
  letter-spacing: -.02em;
  padding-right: 8px;
}
.instr-row.active-node .instr-num { opacity: 1; color: var(--acc); }
.instr-row.expanded    .instr-num { opacity: 1; color: var(--acc); }

.instr-body { display: flex; flex-direction: column; gap: 4px; }
.instr-name {
  font: 600 15px/1 var(--font-ui);
  color: var(--cream);
  letter-spacing: .01em;
}
.instr-desc {
  font: 400 12px/1 var(--font-mono);
  color: var(--cream-dim);
  letter-spacing: .04em;
}

.instr-meta {
  display: flex; align-items: center; gap: 16px;
  padding-left: 32px;
}
.instr-color-bar {
  width: 3px; height: 28px;
  border-radius: 2px;
  opacity: .8;
}
.instr-status {
  font: 500 9px/1 var(--font-mono);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--acc);
  padding: 4px 8px;
  border: 1px solid var(--bd);
  border-radius: 3px;
  background: rgba(200,83,44,.06);
}
.instr-tag {
  font: 400 10px/1 var(--font-mono);
  letter-spacing: .1em;
  color: var(--cream-mute);
  white-space: nowrap;
}

/* Expand chevron */
.instr-chevron {
  width: 14px; height: 14px;
  margin-left: 12px;
  color: var(--cream-mute);
  transition: transform .35s ease, color .2s;
  flex-shrink: 0;
}
.instr-row.expanded .instr-chevron { transform: rotate(180deg); color: var(--acc); }

/* ─────────────────────────── REFERENCES TABLE ───────────────────────────── */
.refs-section {
  position: relative; z-index: 1;
  padding: 80px 0;
}
.refs-title {
  font: 700 22px/1.1 var(--font-display);
  letter-spacing: -.015em;
  color: var(--cream);
  margin-bottom: 32px;
}
.refs-table {
  width: 100%;
  border-collapse: collapse;
  font: 400 13px/1.5 var(--font-ui);
}
.refs-table th {
  font: 600 9px/1 var(--font-mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--cream-mute);
  text-align: left;
  padding: 10px 0;
  border-bottom: 1px solid var(--bd2);
}
.refs-table td {
  padding: 13px 0;
  border-bottom: 1px solid rgba(255,255,255,.04);
  vertical-align: top;
  color: var(--cream-dim);
}
.refs-table td:first-child {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--acc2);
  padding-right: 24px;
  width: 28%;
}
.refs-table td:last-child {
  font-size: 11px;
  color: var(--cream-mute);
  font-family: var(--font-mono);
  padding-left: 20px;
}

/* ─────────────────────── FOOTER — LAST INSTRUMENT ──────────────────────── */
.footer-instrument {
  position: relative; z-index: 1;
  border-top: 1px solid var(--bd);
  padding: 64px 32px 48px;
  display: flex; flex-direction: column; align-items: center;
  text-align: center;
  gap: 28px;
}
.footer-section-mark {
  font: 500 9px/1 var(--font-mono);
  letter-spacing: .16em;
  color: var(--acc);
  text-transform: uppercase;
  margin-bottom: 4px;
}
.footer-mini-clock { color: var(--acc); opacity: .6; }
.footer-brand {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
}
.footer-name {
  font: 700 12px/1 var(--font-mono);
  letter-spacing: .22em;
  color: var(--cream);
  text-transform: uppercase;
}
.footer-tagline {
  font: 400 11px/1 var(--font-mono);
  letter-spacing: .14em;
  color: var(--cream-mute);
  text-transform: uppercase;
}
.footer-divider {
  width: 100%; max-width: 480px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--bd), transparent);
}
.footer-legal {
  font: 400 10px/1.7 var(--font-mono);
  color: var(--cream-mute);
  letter-spacing: .1em;
}
.footer-legal a { color: var(--cream-dim); text-decoration: none; transition: color .15s; }
.footer-legal a:hover { color: var(--acc); }
.footer-pulse {
  display: inline-block;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--acc);
  animation: pulse-dot 2.5s ease-in-out infinite;
  vertical-align: middle;
  margin: 0 6px;
}

/* ────────────────────────────── RESPONSIVE ──────────────────────────────── */
@media (max-width: 1100px) {
  .hero-grid { grid-template-columns: 1fr 440px; gap: 56px; }
}
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-clock { order: -1; max-width: 380px; margin: 0 auto; }
  .hero-h1 { font-size: clamp(32px,7vw,52px); }
  .specs-inner { grid-template-columns: 1fr 1fr; }
  .spec-item:nth-child(2) { border-right: none; }
  .spec-item:nth-child(3) { border-top: 1px solid var(--bd2); }
  .spec-item:nth-child(4) { border-top: 1px solid var(--bd2); border-right: none; }
  .pq-grid { grid-template-columns: 1fr; }
  .pq-panel.right { border-left: none; border-top: 1px solid var(--bd); }
  .pq-section::before { transform: rotate(0); inset: 0 0; }
  .instr-row-main { grid-template-columns: 44px 1fr; }
  .instr-meta { display: none; }
  .instr-detail { padding-left: 44px; }
  .instr-row.expanded .instr-detail { padding: 4px 0 22px 44px; }
  /* Nav : horizontally scrollable on tablet/mobile instead of hidden */
  .nav {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    flex-shrink: 1;
    min-width: 0;
  }
  .nav::-webkit-scrollbar { display: none; }
  .nav__lbl { font-size: 10px; }
  .nav__item, .nav a { padding: 6px 8px; }
}
@media (max-width: 640px) {
  :root { --pad-x: 20px; }
  .topbar { padding: 0 12px; gap: 8px; }
  .brand-ref { display: none; }
  .hero { padding-top: 84px; padding-bottom: 56px; }
  .specs-inner { grid-template-columns: 1fr; }
  .spec-item { border-right: none !important; border-top: 1px solid var(--bd2); }
  .spec-item:first-child { border-top: none; }
  .stat-big { margin-left: -1vw; }
  .versus { grid-template-columns: 1fr; }
  .vs-divider { display: none; }
  .vs-col.bad { border-bottom: 1px solid var(--bd2); }
  .bp-rule::before { left: 16px; }
  .bp-rule::after  { display: none; }
  .instr-row::before { left: -20px; right: -20px; }
  .instr-detail { padding-left: 36px; }
  .instr-row.expanded .instr-detail { padding: 4px 0 20px 36px; }
  .refs-table { font-size: 12px; }
  .refs-table td:first-child { width: 35%; }
  .refs-table td:last-child { display: none; }
  .hero-grid { gap: 40px; }
}
@media (prefers-reduced-motion: reduce) {
  .ticker-track, .svg-cage, .svg-balance, .orbit-ring, .lever-arm,
  .cursor, .hero-eyebrow-dot, .footer-pulse, .dot.live { animation: none !important; }
}