/* Passaggio website — Noir palette, the app's default (src/theme/colors.ts + schemes.ts "noir") */
:root {
  --bg: #040404;
  --black: #060606;
  --black-deep: #040404;
  --black-sheet: #0d0d0d;
  --glass: rgba(13, 13, 13, 0.72);
  --glass-pressed: rgba(20, 20, 20, 0.85);
  --brass: #a1885e;
  --brass-flat: #c9ad7a;
  --brass-shine: #f0e2b6;
  --gold: #f5cc58;
  --gold-core: #fff1c9;
  --mist: #a6a6a6;
  --rose: #ff6f91;
  --amber: #d49949;
  --bone: #ece9df;
  --text-2: #aaa79a;
  --text-3: #928f84;
  --divider: rgba(120, 102, 72, 0.55);
  --radius: 14px;
  --radius-sm: 8px;
  --max: 1120px;
  --gutter: 20px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-brand: "Outfit", var(--font);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--bone);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  letter-spacing: -0.005em;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(1200px 600px at 15% -10%, rgba(245, 204, 88, 0.10), transparent 60%),
    radial-gradient(900px 500px at 90% 10%, rgba(161, 136, 94, 0.12), transparent 60%),
    linear-gradient(180deg, #0d0d0d 0%, #040404 55%);
}

a { color: var(--brass-flat); text-decoration: none; }
a:hover { color: var(--gold); }
img { max-width: 100%; display: block; }
p { margin: 0 0 1em; }
h1, h2, h3, h4 {
  margin: 0 0 0.5em;
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.15;
  color: var(--bone);
}
h1 { font-size: clamp(2.4rem, 7vw, 4.4rem); }
h2 { font-size: clamp(1.7rem, 4.5vw, 2.6rem); }
h3 { font-size: 1.2rem; font-weight: 500; }
em { color: var(--gold); font-style: italic; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.kicker {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brass-flat);
  margin-bottom: 0.9em;
}
.lede { color: var(--text-2); font-size: 1.1rem; max-width: 42rem; }
.rule {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--brass) 20%, var(--brass) 80%, transparent);
  opacity: 0.6;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(9, 9, 8, 0.72);
  border-bottom: 1px solid rgba(161, 136, 94, 0.25);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-brand);
  font-weight: 600;
  font-size: 1.35rem;
  color: var(--bone);
  letter-spacing: -0.01em;
}
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.brand:hover { color: var(--bone); }
.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-2);
  font-size: 0.95rem;
  font-weight: 500;
}
.nav a:hover { color: var(--bone); background: rgba(255, 255, 255, 0.04); }
.nav a[aria-current="page"] { color: var(--gold); }
.nav .cta {
  margin-left: 8px;
  color: var(--brass-flat);
  border: 2px solid var(--brass);
  background: var(--glass);
}
.nav .cta:hover { border-color: var(--gold); color: var(--gold); background: var(--glass); }
.menu-btn {
  display: none;
  background: var(--glass);
  border: 1px solid var(--brass);
  color: var(--brass-flat);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font: inherit;
  font-size: 0.9rem;
  cursor: pointer;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 1rem;
  border: 2px solid var(--brass);
  background: var(--glass);
  color: var(--brass-flat);
  transition: border-color 0.15s, color 0.15s, box-shadow 0.15s;
}
.btn:hover { border-color: var(--gold); color: var(--gold); box-shadow: 0 0 0 4px rgba(245, 204, 88, 0.12); }
.btn.secondary { border-width: 1px; color: var(--text-2); }
.btn.secondary:hover { color: var(--bone); border-color: var(--brass-flat); box-shadow: none; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 1.6rem; }

/* Hero */
.hero { padding: 80px 0 60px; position: relative; overflow: hidden; }
.hero-logo { display: block; width: min(100%, 1040px); height: auto; margin: -40px auto 8px; }
@media (max-width: 760px) { .hero-logo { width: calc(100% + 2 * var(--gutter)); max-width: none; margin: -24px calc(-1 * var(--gutter)) 4px; } }
.hero .container { position: relative; }
.hero p.lede { font-size: 1.2rem; }

/* Sections */
section { padding: 64px 0; }
section.alt { background: rgba(13, 13, 13, 0.6); border-top: 1px solid var(--divider); border-bottom: 1px solid var(--divider); }
.section-head { max-width: 46rem; margin-bottom: 2rem; }

/* Glass tiles */
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.tile {
  position: relative;
  background: var(--glass);
  border: 1px solid rgba(161, 136, 94, 0.45);
  border-radius: var(--radius);
  padding: 22px 22px 18px;
  overflow: hidden;
}
.tile::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(201, 173, 122, 0.12), transparent 40%);
  pointer-events: none;
}
.tile .num { font-size: 0.7rem; letter-spacing: 0.12em; color: var(--brass-flat); text-transform: uppercase; }
.tile h3 {
  margin: 0.4em 0 0.3em;
  padding-bottom: 0.4em;
  border-bottom: 1px solid var(--divider);
  color: var(--bone);
}
.tile p { color: var(--text-2); font-size: 0.97rem; margin-bottom: 0.4em; }
.tile ul { margin: 0.4em 0 0; padding-left: 1.1em; color: var(--text-2); font-size: 0.95rem; }
.tile li { margin-bottom: 0.3em; }
.tile.gold { border-color: rgba(245, 204, 88, 0.55); box-shadow: 0 0 24px rgba(245, 204, 88, 0.08) inset; }

/* Feature lists on the Features page */
.feature-block { padding: 40px 0; border-bottom: 1px solid var(--divider); }
.feature-block:last-child { border-bottom: 0; }
.feature-block h2 { font-size: 1.6rem; }
.feature-block ul { padding-left: 1.2em; color: var(--text-2); }
.feature-block li { margin-bottom: 0.5em; }
.feature-block li strong { color: var(--bone); font-weight: 500; }

/* Tracks table */
.tracks { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); counter-reset: track; }
.track {
  background: var(--glass);
  border: 1px solid rgba(161, 136, 94, 0.4);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font-size: 0.95rem;
}
.track::before {
  counter-increment: track;
  content: counter(track, decimal-leading-zero);
  display: block;
  color: var(--brass-flat);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
}
.track b { display: block; color: var(--bone); font-weight: 500; margin: 2px 0; }
.track span { color: var(--text-2); font-size: 0.9rem; }

/* Steps */
.steps { display: grid; gap: 14px; }
.step { display: grid; grid-template-columns: 48px 1fr; gap: 14px; align-items: start; }
.step .n {
  width: 44px; height: 44px; border-radius: 50%;
  display: grid; place-items: center;
  border: 2px solid var(--brass); color: var(--gold); font-weight: 600;
  background: var(--glass);
}
.step h3 { margin-bottom: 0.2em; }
.step p { color: var(--text-2); margin: 0; }

/* Pitch lane demo */
.lane {
  position: relative;
  height: 150px;
  background: var(--black);
  border: 1px solid rgba(161, 136, 94, 0.45);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 1.6rem;
}
.lane .playhead { position: absolute; left: 33%; top: 0; bottom: 0; width: 1px; background: var(--brass-flat); opacity: 0.8; }
.lane .bar {
  position: absolute; height: 18px; border-radius: 9px;
  background: rgba(166, 166, 166, 0.14); border: 1px solid var(--mist);
  animation: scroll 9s linear infinite;
}
.lane .bar.hit { background: rgba(245, 204, 88, 0.3); border-color: var(--gold); box-shadow: 0 0 14px rgba(245, 204, 88, 0.45); }
.lane .bar::after {
  content: attr(data-syl);
  position: absolute; top: -20px; left: 10px;
  font-size: 0.72rem; color: var(--brass-flat); letter-spacing: 0.05em;
}
.lane .line { position: absolute; left: 0; right: 0; top: 0; height: 100%; }
@keyframes scroll { from { transform: translateX(110%); } to { transform: translateX(-130%); } }
@media (prefers-reduced-motion: reduce) { .lane .bar { animation: none; } }

/* FAQ */
details {
  background: var(--glass);
  border: 1px solid rgba(161, 136, 94, 0.4);
  border-radius: var(--radius-sm);
  padding: 4px 18px;
  margin-bottom: 10px;
}
summary { cursor: pointer; padding: 12px 0; font-weight: 500; color: var(--bone); list-style: none; display: flex; justify-content: space-between; gap: 12px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--brass-flat); font-weight: 400; }
details[open] summary::after { content: "–"; }
details p { color: var(--text-2); margin: 0 0 14px; }

/* Download */
.download-card { display: grid; gap: 16px; grid-template-columns: 1fr; }
.download-card .meta { color: var(--text-3); font-size: 0.9rem; }
.download-card code { color: var(--brass-flat); font-size: 0.85rem; word-break: break-all; }
.note { border-left: 2px solid var(--amber); padding: 6px 14px; color: var(--text-2); background: rgba(212, 153, 73, 0.07); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }

/* Prose pages */
.prose { max-width: 46rem; }
.prose h2 { font-size: 1.4rem; margin-top: 1.8em; }
.prose p, .prose li { color: var(--text-2); }
.prose ul { padding-left: 1.2em; }

/* Footer */
.site-footer { border-top: 1px solid var(--divider); padding: 40px 0 56px; color: var(--text-3); font-size: 0.92rem; }
.site-footer .container { display: grid; gap: 24px; grid-template-columns: 1fr; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.site-footer nav a { color: var(--text-2); }
.site-footer nav a:hover { color: var(--gold); }
.site-footer .credit { font-family: var(--font-brand); color: var(--brass-flat); }

/* Responsive */
@media (min-width: 700px) {
  .site-footer .container { grid-template-columns: 1fr auto; align-items: center; }
  .download-card { grid-template-columns: 1.4fr 1fr; align-items: start; }
}
@media (max-width: 760px) {
  body { font-size: 16px; }
  .menu-btn { display: inline-block; }
  .nav {
    display: none;
    position: absolute;
    left: 0; right: 0; top: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 10px var(--gutter) 16px;
    background: rgba(9, 9, 8, 0.97);
    border-bottom: 1px solid var(--divider);
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px 10px; font-size: 1.05rem; }
  .nav .cta { margin: 8px 0 0; justify-content: center; display: flex; }
  .hero { padding: 56px 0 40px; }
  section { padding: 48px 0; }
  .lane { height: 120px; }
}

/* "See it in action" demos */
.demos { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.demo {
  position: relative;
  background: var(--black);
  border: 1px solid rgba(161, 136, 94, 0.45);
  border-radius: var(--radius);
  overflow: hidden;
}
.demo-head { padding: 14px 18px 0; display: flex; justify-content: space-between; align-items: baseline; gap: 10px; }
.demo-head .num { font-size: 0.7rem; letter-spacing: 0.12em; color: var(--brass-flat); text-transform: uppercase; }
.demo-head span:last-child { font-size: 0.78rem; color: var(--text-3); }
.demo-lesson canvas { display: block; width: 100%; height: 230px; transition: opacity 0.4s; }
.demo-lesson.dim canvas { opacity: 0.28; }
.demo-card {
  position: absolute; left: 50%; top: 58%;
  width: min(88%, 420px);
  transform: translate(-50%, -50%) translateY(14px) scale(0.98);
  opacity: 0;
  transition: opacity 0.35s, transform 0.35s;
  background: rgba(13, 13, 13, 0.96);
  border: 1px solid var(--brass);
  border-radius: var(--radius);
  padding: 14px 16px 14px;
  box-shadow: 0 0 0 1px rgba(240, 226, 182, 0.12) inset, 0 20px 50px rgba(0, 0, 0, 0.6);
  pointer-events: none;
}
.demo-card.show { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.demo-card .fault { font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--brass-flat); }
.demo-card h4 { margin: 4px 0 6px; color: var(--gold); font-size: 1.05rem; font-weight: 600; }
.demo-card p { margin: 0; color: var(--text-2); font-size: 0.88rem; line-height: 1.45; }
.demo-card .target { display: flex; align-items: center; gap: 12px; margin-top: 10px; }
.demo-card .target svg { width: 64px; height: 38px; flex: none; }
.demo-card .target small { color: var(--text-3); font-size: 0.78rem; }
.demo-card.show .target .mouth { animation: yawn 1.8s 0.5s ease-in-out infinite alternate; }
@keyframes yawn { from { ry: 5; } to { ry: 14; } }

.demo-weak { padding-bottom: 16px; }
.demo-weak .map { position: relative; margin: 18px 18px 0; height: 54px; }
.demo-weak .keys { display: grid; grid-template-columns: repeat(12, 1fr); gap: 3px; height: 34px; }
.demo-weak .keys i {
  display: block; border-radius: 4px;
  background: rgba(166, 166, 166, 0.12); border: 1px solid rgba(166, 166, 166, 0.22);
  position: relative; transition: background 0.5s, border-color 0.5s, box-shadow 0.5s;
}
.demo-weak .keys i::after { content: attr(data-n); position: absolute; left: 0; right: 0; top: 38px; text-align: center; font-size: 0.62rem; color: var(--text-3); letter-spacing: 0.04em; }
.demo-weak .keys i.bridge { border-color: rgba(201, 173, 122, 0.4); }
.demo-weak .keys i.bridge::before { content: "bridge"; position: absolute; left: 50%; top: -16px; transform: translateX(-50%); font-size: 0.6rem; color: var(--brass-flat); letter-spacing: 0.1em; white-space: nowrap; }
.demo-weak [data-phase="note"].on .keys i.weak { background: rgba(255, 111, 145, 0.3); border-color: var(--rose); box-shadow: 0 0 14px rgba(255, 111, 145, 0.35); }
.demo-weak [data-phase="step"].on .keys i.leap { background: rgba(245, 204, 88, 0.22); border-color: var(--gold); }
.demo-weak .arc { position: absolute; left: 0; right: 0; top: -6px; height: 40px; pointer-events: none; opacity: 0; transition: opacity 0.5s; }
.demo-weak .arc path { stroke: var(--gold); stroke-width: 1.5; fill: none; stroke-dasharray: 4 3; }
.demo-weak [data-phase="step"].on .arc { opacity: 1; }
.demo-weak .findings { list-style: none; margin: 14px 18px 0; padding: 0; display: grid; gap: 7px; }
.demo-weak .findings li {
  display: flex; gap: 10px; align-items: center;
  padding: 8px 12px; border-radius: var(--radius-sm);
  border: 1px solid rgba(161, 136, 94, 0.3); background: rgba(13, 13, 13, 0.8);
  color: var(--text-2); font-size: 0.86rem;
  opacity: 0; transform: translateX(-8px);
  transition: opacity 0.45s, transform 0.45s, border-color 0.45s;
}
.demo-weak .findings li.on { opacity: 1; transform: none; }
.demo-weak .findings li.now { border-color: var(--gold); }
.demo-weak .findings li b { color: var(--bone); font-weight: 500; }
.demo-weak .findings li .tag { margin-left: auto; font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--brass-flat); white-space: nowrap; }
.demo-weak .findings li.fault .tag { color: var(--rose); }
.demo-weak .status { margin: 12px 18px 0; display: flex; align-items: center; gap: 10px; font-size: 0.82rem; color: var(--text-3); }
.demo-weak .status .pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--brass-flat); animation: pulse 1.2s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { opacity: 0.35; } 50% { opacity: 1; } }
.demo-weak .status .demo-count { color: var(--bone); }
.demo-weak .built-btn {
  margin: 12px 18px 0; display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 16px; border-radius: var(--radius); border: 2px solid var(--brass); color: var(--brass-flat);
  font-size: 0.92rem; font-weight: 500; opacity: 0.35; transition: opacity 0.4s, border-color 0.4s, color 0.4s, box-shadow 0.4s;
}
.demo-weak.built .built-btn { opacity: 1; border-color: var(--gold); color: var(--gold); box-shadow: 0 0 0 4px rgba(245, 204, 88, 0.12), 0 0 24px rgba(245, 204, 88, 0.2); }
.demo-weak.built .status .pulse { animation: none; background: var(--gold); opacity: 1; }
@media (prefers-reduced-motion: reduce) { .demo-weak .status .pulse, .demo-card .mouth { animation: none; } }