/* ==========================================================================
   HairAI Marketing Site — Editorial Gallery Aesthetic
   ========================================================================== */

:root {
  --paper: #fafaf7;
  --paper-2: #f3f1ea;
  --ink: #0a0a0a;
  --ink-soft: #1a1a1a;
  --muted: #666;
  --faint: #999;
  --hair: #e6e4dc;
  --hair-soft: #efece4;
  --accent: #9c7a2a;
  --accent-soft: #c8a25c;

  --serif: "Instrument Serif", "Fraunces", Georgia, serif;
  --body: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, monospace;

  --maxw: 1320px;
  --pad-x: clamp(20px, 5vw, 64px);
}

* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
html { scroll-behavior: smooth; }
body { overflow-x: hidden; }

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
img { max-width: 100%; display: block; }

/* ==========  Type primitives  ========== */
.eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--faint);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.eyebrow.center { display: flex; justify-content: center; }
.eyebrow-mono {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--faint);
  display: block;
  margin-bottom: 4px;
}
.eyebrow-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  display: inline-block;
  animation: blink 2.4s ease-in-out infinite;
}
@keyframes blink {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

.display {
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 0.95;
  color: var(--ink);
}
.display em { font-style: italic; color: var(--ink); }

.section-title {
  font-size: clamp(48px, 6.5vw, 92px);
  margin: 14px 0 18px;
}
.section-lede {
  font-size: 15px;
  line-height: 1.55;
  color: var(--muted);
  max-width: 480px;
}

/* ==========  Reveal (scroll-triggered)  ========== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 900ms cubic-bezier(.2,.7,.2,1),
              transform 900ms cubic-bezier(.2,.7,.2,1);
}
.reveal.is-in { opacity: 1; transform: none; }

[data-stagger] .line { overflow: hidden; }
[data-stagger] .line > * {
  display: inline-block;
  transform: translateY(110%);
  transition: transform 900ms cubic-bezier(.2,.85,.2,1);
}
[data-stagger].is-in .line:nth-child(1) > * { transition-delay: 0ms;   transform: none; }
[data-stagger].is-in .line:nth-child(2) > * { transition-delay: 100ms; transform: none; }
[data-stagger].is-in .line:nth-child(3) > * { transition-delay: 200ms; transform: none; }
[data-stagger].is-in .line:nth-child(4) > * { transition-delay: 300ms; transform: none; }

/* ==========  NAV  ========== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px var(--pad-x);
  background: color-mix(in oklab, var(--paper) 88%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 280ms ease, padding 280ms ease, background 280ms ease;
}
.nav.is-scrolled {
  padding: 12px var(--pad-x);
  border-bottom-color: var(--hair);
}
.nav-logo {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.nav-logo-mark {
  display: inline-flex;
  width: 28px; height: 28px;
  align-items: center; justify-content: center;
  border-radius: 7px;
  overflow: hidden;
  color: var(--ink);
  box-shadow: 0 0 0 1px rgba(0,0,0,0.08);
}
.nav-logo-mark img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.nav-logo-dot { color: var(--accent); }
.nav-logo-word { font-family: var(--serif); }
.nav-links {
  display: flex; gap: 28px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink);
}
.nav-links a {
  position: relative;
  padding-bottom: 4px;
}
.nav-links a::after {
  content: '';
  position: absolute; left: 0; right: 0; bottom: 0;
  height: 1px; background: var(--ink);
  transform: scaleX(0); transform-origin: left;
  transition: transform 320ms cubic-bezier(.2,.7,.2,1);
}
.nav-links a:hover::after { transform: scaleX(1); }

.link-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 0;
  border-bottom: 1px solid var(--ink);
  color: var(--ink);
  font-family: var(--body);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 500;
  transition: gap 280ms ease;
}
.link-btn:hover { gap: 14px; }

@media (max-width: 900px) {
  .nav-links { display: none; }
}

/* ==========  HERO  ========== */
.hero {
  position: relative;
  padding: 140px var(--pad-x) 80px;
  min-height: 100vh;
  overflow: hidden;
}
.hero-grain {
  position: absolute; inset: 0;
  pointer-events: none;
  background:
    radial-gradient(1200px 600px at 80% 0%, color-mix(in oklab, var(--accent) 6%, transparent), transparent 60%),
    radial-gradient(900px 500px at 0% 80%, color-mix(in oklab, var(--accent) 4%, transparent), transparent 60%);
  opacity: 0.7;
}
.hero-grid {
  position: relative;
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-copy { padding-top: 12px; }
.hero-copy .display {
  font-size: clamp(64px, 8.4vw, 132px);
  margin: 22px 0 28px;
}
.line { display: block; }
.lede {
  font-size: 17px;
  line-height: 1.55;
  color: var(--muted);
  max-width: 520px;
  margin: 0 0 36px;
}
.hero-ctas {
  display: flex; align-items: center; gap: 28px;
  margin-bottom: 56px;
  flex-wrap: wrap;
}

.btn-filled {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 16px 26px;
  background: var(--ink);
  color: #fff;
  font-family: var(--body);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  border: none;
  position: relative;
  overflow: hidden;
  transition: transform 220ms cubic-bezier(.2,.7,.2,1);
}
.btn-filled::before {
  content: '';
  position: absolute; inset: 0;
  background: var(--accent);
  transform: scaleY(0); transform-origin: bottom;
  transition: transform 380ms cubic-bezier(.2,.7,.2,1);
  z-index: 0;
}
.btn-filled > * { position: relative; z-index: 1; }
.btn-filled:hover::before { transform: scaleY(1); }
.btn-filled:hover { color: #fff; }
.btn-filled.magnetic { will-change: transform; }

.btn-link {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 0;
  color: var(--ink);
  border-bottom: 1px solid var(--ink);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 500;
  transition: gap 280ms ease;
}
.btn-link:hover { gap: 16px; }

.btn-outline {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 14px 22px;
  border: 1px solid var(--ink);
  color: var(--ink);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 500;
  transition: background 280ms, color 280ms;
}
.btn-outline:hover { background: var(--ink); color: var(--paper); }

.hero-meta {
  display: grid; grid-template-columns: repeat(3, auto);
  gap: 42px;
  padding-top: 28px;
  border-top: 1px solid var(--hair);
}
.meta-item strong {
  display: block;
  font-family: var(--serif);
  font-size: 36px;
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.meta-item span {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--faint);
  display: block;
  margin-top: 6px;
}

/* Hero stage */
.hero-stage {
  position: relative;
  height: 720px;
}
.stage-frame {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
}
.stage-inner {
  position: relative;
  flex: 1;
  border: 1px solid var(--hair);
  background: var(--paper);
  overflow: hidden;
}

.hp {
  position: absolute;
  border: 1px solid var(--hair);
  overflow: hidden;
  background: var(--paper-2);
  transition: transform 700ms cubic-bezier(.2,.7,.2,1);
}
.hp .hp-label {
  position: absolute; left: 14px; bottom: 12px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink);
  background: rgba(255,255,255,0.85);
  padding: 4px 8px;
  z-index: 2;
}
.hp .hp-num {
  position: absolute; left: 14px; top: 12px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--ink);
  background: rgba(255,255,255,0.85);
  padding: 3px 7px;
  z-index: 2;
}
.hp .hp-tag {
  position: absolute; right: 12px; bottom: 12px;
  background: #fff;
  padding: 6px 10px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  z-index: 2;
}

.hp-back  { left: 6%;  top: 18%;  width: 42%; height: 42%; transform: rotate(-3deg); z-index: 1;  background: #ece8de; }
.hp-mid   { right: 4%; top: 8%;   width: 40%; height: 50%; transform: rotate(2deg);  z-index: 2;  background: #ddd6c7; }
.hp-front { left: 22%; top: 30%;  width: 60%; height: 64%; z-index: 3; box-shadow: 0 30px 80px -30px rgba(0,0,0,0.25); background: #c8b893; }

.hp-frontwrap { position: absolute; inset: 0; }

/* Real photography fills each floating card; the tone gradients underneath
   remain as a paint-while-loading fallback. */
.hp-img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  z-index: 0;
  filter: saturate(0.92) contrast(1.02);
}
.hp .hp-label, .hp .hp-num, .hp .hp-tag, .hp-pulse { z-index: 2; }
.hp::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0) 55%, rgba(0,0,0,0.32));
  z-index: 1; pointer-events: none;
}
.hp .hp-label, .hp .hp-num { color: #fff; mix-blend-mode: normal; }
.hp .hp-label { text-shadow: 0 1px 6px rgba(0,0,0,0.35); }

/* Tone backgrounds — placeholder gradients/stripes that suggest hair */
.hp[data-tone="t1"] {
  background:
    repeating-linear-gradient(115deg, rgba(0,0,0,0.04) 0 2px, transparent 2px 7px),
    linear-gradient(160deg, oklch(0.82 0.018 60), oklch(0.72 0.025 50));
}
.hp[data-tone="t2"] {
  background:
    repeating-linear-gradient(95deg, rgba(0,0,0,0.05) 0 1px, transparent 1px 5px),
    linear-gradient(150deg, oklch(0.78 0.015 40), oklch(0.6 0.02 30));
}
.hp[data-tone="t3"] {
  background:
    repeating-linear-gradient(105deg, rgba(0,0,0,0.06) 0 1px, transparent 1px 4px),
    linear-gradient(170deg, oklch(0.62 0.022 35), oklch(0.42 0.03 25));
}

.hp-pulse {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120px 60px at 50% 30%, rgba(255,255,255,0.18), transparent 70%);
  animation: pulse 3.4s ease-in-out infinite;
  pointer-events: none;
}
@keyframes pulse {
  0%, 100% { opacity: 0.4; transform: translateY(0); }
  50%      { opacity: 0.9; transform: translateY(-4px); }
}

/* Annotations */
.annot {
  position: absolute;
  display: flex; align-items: center; gap: 0;
  z-index: 4;
}
.annot .annot-line {
  width: 60px; height: 1px;
  background: var(--ink);
}
.annot .annot-label {
  background: var(--paper);
  border: 1px solid var(--ink);
  padding: 6px 10px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  display: inline-flex; align-items: center; gap: 6px;
}
.annot .dot { width: 5px; height: 5px; background: var(--accent); border-radius: 50%; }
.annot-1 { left: -50px;  top: 28%; }
.annot-2 { right: -38px; bottom: 18%; flex-direction: row-reverse; }

.stage-strip {
  display: flex; align-items: center; gap: 14px;
  padding: 10px 14px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.strip-dot { width: 4px; height: 4px; border-radius: 50%; background: var(--accent); }

/* Hero phone */
.hero-phone {
  position: absolute;
  right: -30px; bottom: -10px;
  width: 200px;
  aspect-ratio: 9 / 19;
  background: #fff;
  border: 1px solid var(--ink);
  border-radius: 22px;
  padding: 14px 12px;
  box-shadow: 0 30px 80px -20px rgba(0,0,0,0.3);
  transform: rotate(6deg);
  z-index: 5;
  font-size: 10px;
}
.phone-screen { display: flex; flex-direction: column; gap: 8px; height: 100%; }
.phone-bar {
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--mono); font-size: 8px; color: var(--muted);
}
.phone-notch { width: 30px; height: 5px; background: var(--ink); border-radius: 4px; }
.phone-eyebrow {
  font-family: var(--mono); font-size: 8px; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--faint);
}
.phone-display {
  font-family: var(--serif); font-size: 26px; line-height: 0.95;
  color: var(--ink); letter-spacing: -0.02em;
}
.phone-display em { font-style: italic; }
.phone-card {
  position: relative;
  height: 70px;
  background: linear-gradient(150deg, oklch(0.62 0.022 35), oklch(0.42 0.03 25));
  border: 1px solid var(--hair);
  margin-top: 4px;
}
.phone-card-tag {
  position: absolute; right: 6px; bottom: 6px;
  background: #fff; padding: 3px 6px;
  font-family: var(--mono); font-size: 8px; letter-spacing: 0.15em;
}
.phone-rule { height: 1px; background: var(--hair); margin: 4px 0; }
.phone-row {
  display: flex; justify-content: space-between;
  font-family: var(--mono); font-size: 8px;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--muted);
  padding: 2px 0;
}
.phone-row span:last-child { color: var(--ink); }
.phone-cta {
  margin-top: auto;
  padding: 8px;
  background: var(--ink); color: #fff;
  font-family: var(--mono); font-size: 9px;
  letter-spacing: 0.18em; text-transform: uppercase;
  text-align: center;
}

/* Scroll cue */
.scroll-cue {
  position: absolute;
  bottom: 30px; left: var(--pad-x);
  display: flex; flex-direction: column; align-items: flex-start; gap: 12px;
  font-family: var(--mono); font-size: 9px;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--faint);
}
.scroll-line {
  width: 1px; height: 60px;
  background: var(--hair);
  position: relative;
  overflow: hidden;
}
.scroll-dot {
  position: absolute;
  top: 0; left: 0;
  width: 1px; height: 16px;
  background: var(--ink);
  animation: scroll-down 2.2s ease-in-out infinite;
}
@keyframes scroll-down {
  0%   { transform: translateY(-16px); opacity: 0; }
  20%  { opacity: 1; }
  80%  { opacity: 1; }
  100% { transform: translateY(60px); opacity: 0; }
}

/* ==========  Marquee  ========== */
.marquee {
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
  padding: 28px 0;
  overflow: hidden;
  background: var(--paper);
}
.marquee-track {
  display: flex; gap: 60px;
  width: max-content;
  animation: marquee 36s linear infinite;
}
.marquee-set {
  display: flex; align-items: center; gap: 60px;
  font-family: var(--serif);
  font-size: 28px;
  color: var(--ink);
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.marquee-set em { font-style: italic; }
.marquee-set .m-dot {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--accent);
}
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ==========  How it works  ========== */
.how {
  padding: 140px var(--pad-x);
  max-width: var(--maxw);
  margin: 0 auto;
}
.section-head {
  margin-bottom: 80px;
  max-width: 900px;
}
.how-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.how-step {
  position: relative;
  padding: 40px 0 0;
  border-top: 1px solid var(--ink);
}
.how-num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--accent);
  margin-bottom: 24px;
  display: flex; align-items: center; gap: 8px;
}
.how-num::after {
  content: ''; flex: 1; height: 1px; background: var(--hair);
}
.how-title {
  font-family: var(--serif);
  font-size: 38px;
  font-weight: 400;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
  line-height: 1;
}
.how-title em { font-style: italic; }
.how-body {
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
  max-width: 320px;
  margin: 0 0 32px;
}
.how-art {
  height: 280px;
  background: var(--paper-2);
  border: 1px solid var(--hair);
  position: relative;
  overflow: hidden;
  transition: transform 600ms cubic-bezier(.2,.7,.2,1);
}
.how-step:hover .how-art { transform: translateY(-6px); }

/* Camera art */
.how-art[data-art="camera"]::before {
  content: '';
  position: absolute; inset: 28% 30% 28% 30%;
  border: 1px solid var(--ink);
  border-radius: 50%;
}
.how-art[data-art="camera"]::after {
  content: '';
  position: absolute; inset: 36% 38% 36% 38%;
  border: 1px solid var(--ink);
  border-radius: 50%;
  background: var(--paper);
}
/* corner ticks */
.how-art[data-art="camera"] {
  background:
    radial-gradient(2px 2px at 12% 12%, var(--ink) 50%, transparent 51%),
    radial-gradient(2px 2px at 88% 12%, var(--ink) 50%, transparent 51%),
    radial-gradient(2px 2px at 12% 88%, var(--ink) 50%, transparent 51%),
    radial-gradient(2px 2px at 88% 88%, var(--ink) 50%, transparent 51%),
    var(--paper-2);
}

/* Grid art */
.how-art[data-art="grid"] {
  background:
    repeating-linear-gradient(0deg,  rgba(0,0,0,0.07) 0 1px, transparent 1px 60px),
    repeating-linear-gradient(90deg, rgba(0,0,0,0.07) 0 1px, transparent 1px 60px),
    var(--paper-2);
}
.how-art[data-art="grid"]::after {
  content: '';
  position: absolute;
  left: 16%; top: 16%; width: 28%; height: 28%;
  background: linear-gradient(160deg, oklch(0.78 0.015 40), oklch(0.6 0.02 30));
}
.how-art[data-art="grid"]::before {
  content: '';
  position: absolute;
  right: 16%; bottom: 16%; width: 28%; height: 28%;
  background: linear-gradient(160deg, oklch(0.62 0.022 35), oklch(0.42 0.03 25));
}

/* Render art */
.how-art[data-art="render"] {
  background: linear-gradient(150deg, oklch(0.7 0.02 40), oklch(0.45 0.025 30));
}
.how-art[data-art="render"]::before {
  content: '';
  position: absolute; inset: 0;
  background:
    repeating-linear-gradient(105deg, rgba(255,255,255,0.05) 0 1px, transparent 1px 4px);
}
.how-art[data-art="render"]::after {
  content: '0 1 0 1 1 0 1 0 0 1 1 0';
  position: absolute; left: 14px; top: 14px; right: 14px;
  font-family: var(--mono); font-size: 10px;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.3em;
  white-space: nowrap;
  overflow: hidden;
  animation: scan 3s linear infinite;
}
@keyframes scan {
  0%   { opacity: 0.3; transform: translateY(0); }
  50%  { opacity: 0.9; }
  100% { opacity: 0.3; transform: translateY(8px); }
}

/* ==========  Library  ========== */
.library {
  padding: 140px var(--pad-x);
  max-width: var(--maxw);
  margin: 0 auto;
}
.library-head {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: end;
  margin-bottom: 50px;
}
.library-lede {
  font-size: 15px;
  line-height: 1.6;
  color: var(--muted);
  max-width: 420px;
  margin: 0 0 8px auto;
}

.lib-chips {
  display: flex; gap: 8px;
  margin-bottom: 32px;
  flex-wrap: wrap;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--hair);
}
.chip {
  padding: 10px 18px;
  background: transparent;
  border: 1px solid var(--hair);
  border-radius: 99px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  transition: all 220ms ease;
}
.chip:hover {
  border-color: var(--ink);
  color: var(--ink);
}
.chip.is-active {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.lib-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.lib-tile {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  cursor: pointer;
  border: 1px solid var(--hair);
  background: var(--paper-2);
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 700ms cubic-bezier(.2,.7,.2,1),
    transform 700ms cubic-bezier(.2,.7,.2,1),
    border-color 280ms ease;
}
.lib-tile.is-in { opacity: 1; transform: none; }
.lib-tile:hover { border-color: var(--ink); }
.lib-tile-img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 700ms cubic-bezier(.2,.7,.2,1);
}
.lib-tile:hover .lib-tile-img { transform: scale(1.03); }
.lib-tile-num {
  position: absolute; left: 12px; top: 12px;
  font-family: var(--mono); font-size: 9px;
  letter-spacing: 0.18em;
  color: rgba(255,255,255,0.95);
  background: rgba(0,0,0,0.55);
  padding: 4px 7px;
  z-index: 2;
}
.lib-tile-meta {
  position: absolute; left: 12px; right: 12px; bottom: 12px;
  display: flex; align-items: end; justify-content: space-between;
  z-index: 2;
}
.lib-tile-name {
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: -0.01em;
  color: #fff;
  line-height: 1;
  text-shadow: 0 2px 12px rgba(0,0,0,0.4);
}
.lib-tile-name em { font-style: italic; }
.lib-tile-cat {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.85);
  background: rgba(0,0,0,0.55);
  padding: 4px 7px;
}
.lib-tile-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.55) 0%, transparent 50%);
  z-index: 1;
}
.lib-tile-cta {
  position: absolute;
  inset: auto 12px 56px 12px;
  background: var(--paper);
  color: var(--ink);
  padding: 10px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  text-align: center;
  transform: translateY(20px);
  opacity: 0;
  transition: all 320ms cubic-bezier(.2,.7,.2,1);
  z-index: 2;
}
.lib-tile:hover .lib-tile-cta {
  transform: translateY(0); opacity: 1;
}

.lib-seo {
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--hair);
}
.lib-seo p {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 800px;
}
.lib-seo a {
  color: var(--ink);
  border-bottom: 1px solid var(--hair);
  transition: border-color 200ms ease;
}
.lib-seo a:hover { border-color: var(--ink); }

@media (max-width: 1100px) { .lib-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 800px)  { .lib-grid { grid-template-columns: repeat(2, 1fr); } .library-head { grid-template-columns: 1fr; } }

/* ==========  Demo  ========== */
.demo {
  background: var(--ink);
  color: var(--paper);
  padding: 140px var(--pad-x);
}
.demo .display, .demo .section-title { color: var(--paper); }
.demo .display em { color: var(--accent-soft); }
.demo .section-lede { color: rgba(250,250,247,0.65); }
.demo .eyebrow { color: rgba(250,250,247,0.55); }

.demo-head {
  max-width: var(--maxw);
  margin: 0 auto 64px;
}
.demo-stage {
  max-width: var(--maxw);
  margin: 0 auto;
}

.ba {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  user-select: none;
  cursor: ew-resize;
  border: 1px solid rgba(255,255,255,0.1);
}
.ba-side {
  position: absolute; inset: 0;
  overflow: hidden;
}
.ba-img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  z-index: 0;
}
.ba-before {
  background:
    repeating-linear-gradient(115deg, rgba(0,0,0,0.05) 0 2px, transparent 2px 7px),
    linear-gradient(160deg, oklch(0.85 0.012 60), oklch(0.7 0.02 50));
}
.ba-after {
  clip-path: inset(0 0 0 50%);
  background:
    repeating-linear-gradient(105deg, rgba(0,0,0,0.06) 0 1px, transparent 1px 4px),
    linear-gradient(170deg, oklch(0.62 0.022 35), oklch(0.4 0.03 25));
}
.ba-corner {
  position: absolute;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  background: rgba(255,255,255,0.92);
  color: var(--ink);
  padding: 6px 10px;
  z-index: 3;
}
.ba-after .ba-corner { background: rgba(0,0,0,0.85); color: var(--paper); }
.ba-corner-tl { top: 18px; left: 18px; }
.ba-corner-bl { bottom: 18px; left: 18px; }
.ba-corner-tr { top: 18px; right: 18px; }
.ba-corner-br { bottom: 18px; right: 18px; }

.ba-handle {
  position: absolute; top: 0; bottom: 0; left: 50%;
  width: 2px;
  transform: translateX(-50%);
  z-index: 4;
  pointer-events: none;
}
.ba-bar {
  position: absolute; inset: 0; left: 50%;
  width: 1px; transform: translateX(-50%);
  background: rgba(255,255,255,0.95);
}
.ba-knob {
  position: absolute;
  top: 50%; left: 50%;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--paper);
  color: var(--ink);
  display: flex; align-items: center; justify-content: center;
  transform: translate(-50%, -50%);
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}

.demo-meta {
  margin-top: 32px;
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.1);
}
.demo-meta strong {
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 400;
  color: var(--paper);
  letter-spacing: -0.01em;
}

/* ==========  Featured rail  ========== */
.featured {
  padding: 140px var(--pad-x) 80px;
  max-width: var(--maxw);
  margin: 0 auto;
}
.featured-head { margin-bottom: 60px; }

.featured-rail {
  display: flex; gap: 16px;
  overflow-x: auto;
  padding-bottom: 20px;
  scroll-snap-type: x mandatory;
  -ms-overflow-style: none;
  scrollbar-width: none;
}
.featured-rail::-webkit-scrollbar { display: none; }

.feat {
  flex: 0 0 380px;
  aspect-ratio: 3 / 4;
  position: relative;
  border: 1px solid var(--hair);
  scroll-snap-align: start;
  overflow: hidden;
  transition: transform 480ms cubic-bezier(.2,.7,.2,1);
}
.feat:hover { transform: translateY(-8px); }
.feat[data-tone="f1"] { background: linear-gradient(160deg, oklch(0.78 0.015 40), oklch(0.6 0.02 30)); }
.feat[data-tone="f2"] { background: linear-gradient(160deg, oklch(0.82 0.012 60), oklch(0.66 0.02 50)); }
.feat[data-tone="f3"] { background: linear-gradient(160deg, oklch(0.86 0.01 80),  oklch(0.7 0.018 70)); }
.feat[data-tone="f4"] { background: linear-gradient(160deg, oklch(0.5 0.02 30),  oklch(0.32 0.022 25)); }
.feat[data-tone="f5"] { background: linear-gradient(160deg, oklch(0.74 0.018 40), oklch(0.55 0.022 35)); }
.feat[data-tone="f6"] { background: linear-gradient(160deg, oklch(0.62 0.022 35), oklch(0.42 0.03 25)); }
.feat::before {
  content: '';
  position: absolute; inset: 0;
  background: repeating-linear-gradient(105deg, rgba(0,0,0,0.06) 0 1px, transparent 1px 4px);
}
.feat-img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  z-index: 0;
  transition: transform 900ms cubic-bezier(.2,.7,.2,1);
}
.feat:hover .feat-img { transform: scale(1.04); }
.feat::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.55) 0%, rgba(0,0,0,0.05) 45%, transparent 65%);
  z-index: 1;
}
.feat-num, .feat-tag, .feat-meta { z-index: 2; }
.feat-num {
  position: absolute; left: 16px; top: 16px;
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.2em;
  color: #fff;
  background: rgba(0,0,0,0.5);
  padding: 4px 8px;
}
.feat-tag {
  position: absolute; right: 16px; top: 16px;
  font-family: var(--mono); font-size: 9px;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--ink);
  background: var(--paper);
  padding: 5px 9px;
}
.feat-meta {
  position: absolute; left: 16px; bottom: 16px;
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: -0.01em;
  color: #fff;
  text-shadow: 0 2px 12px rgba(0,0,0,0.4);
}
.feat-meta em { font-style: italic; }
.feat-meta span { color: rgba(255,255,255,0.6); margin: 0 4px; }

/* ==========  Quotes  ========== */
.quotes {
  padding: 140px var(--pad-x);
  max-width: var(--maxw);
  margin: 0 auto;
  text-align: center;
}
.pullquote {
  font-family: var(--serif);
  font-size: clamp(36px, 4.5vw, 64px);
  letter-spacing: -0.015em;
  line-height: 1.1;
  margin: 32px auto 18px;
  max-width: 1000px;
  position: relative;
}
.pullquote em { font-style: italic; }
.pq-mark {
  font-family: var(--serif);
  font-size: 1.6em;
  color: var(--accent);
  margin-right: 0.1em;
  line-height: 0;
  vertical-align: -0.3em;
}
.pq-attrib {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 80px;
}

.quote-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  text-align: left;
}
.qcard {
  margin: 0;
  padding: 28px;
  border: 1px solid var(--hair);
  background: var(--paper);
  transition: transform 320ms ease, border-color 320ms ease;
}
.qcard:hover { transform: translateY(-4px); border-color: var(--ink); }
.qcard .stars { color: var(--accent); letter-spacing: 0.15em; margin-bottom: 16px; }
.qcard p {
  font-family: var(--serif);
  font-size: 20px;
  line-height: 1.35;
  color: var(--ink);
  margin: 0 0 24px;
  letter-spacing: -0.01em;
}
.qcard figcaption {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink);
}
.qcard figcaption span { color: var(--faint); }

/* ==========  Pricing  ========== */
.pricing {
  padding: 140px var(--pad-x);
  max-width: var(--maxw);
  margin: 0 auto;
}
.pricing-head { margin-bottom: 60px; max-width: 700px; }

.price-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  align-items: stretch;
}
.price-card {
  position: relative;
  padding: 36px 32px;
  border: 1px solid var(--hair);
  background: var(--paper);
  display: flex; flex-direction: column;
  transition: transform 380ms cubic-bezier(.2,.7,.2,1), border-color 380ms;
}
.price-card:hover { transform: translateY(-4px); border-color: var(--ink); }
.price-card--featured {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.price-card--featured .price-eyebrow,
.price-card--featured .price-foot { color: rgba(250,250,247,0.55); }
.price-card--featured .price-amount,
.price-card--featured .price-list li { color: var(--paper); }
.price-card--featured .price-rule { background: rgba(255,255,255,0.15); }
.price-flag {
  position: absolute;
  top: -1px; right: 24px;
  background: var(--accent);
  color: var(--ink);
  padding: 6px 10px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.price-eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 24px;
}
.price-amount {
  display: flex; align-items: baseline; gap: 10px;
  margin-bottom: 24px;
}
.price-amount .amt {
  font-family: var(--serif);
  font-size: 64px;
  letter-spacing: -0.03em;
  line-height: 1;
}
.price-amount .per {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--faint);
}
.price-rule { height: 1px; background: var(--hair); margin: 0 0 24px; }
.price-list {
  list-style: none; padding: 0; margin: 0 0 32px;
  display: flex; flex-direction: column; gap: 12px;
  flex: 1;
}
.price-list li {
  font-size: 14px;
  color: var(--ink);
  padding-left: 22px;
  position: relative;
}
.price-list li::before {
  content: '';
  position: absolute; left: 0; top: 8px;
  width: 12px; height: 1px;
  background: currentColor;
}
.price-card--featured .btn-filled {
  background: var(--paper); color: var(--ink);
}
.price-card--featured .btn-filled::before { background: var(--accent); }
.price-card--featured .btn-filled:hover { color: var(--ink); }

.price-foot {
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--faint);
  text-align: center;
}

/* ==========  FAQ  ========== */
.faq {
  padding: 140px var(--pad-x);
  max-width: var(--maxw);
  margin: 0 auto;
}
.faq-head { margin-bottom: 60px; max-width: 700px; }
.faq-list {
  display: flex; flex-direction: column;
  border-top: 1px solid var(--ink);
}
.faq-item {
  border-bottom: 1px solid var(--hair);
  padding: 0;
}
.faq-item summary {
  list-style: none;
  display: grid;
  grid-template-columns: 60px 1fr 30px;
  align-items: center;
  gap: 24px;
  padding: 28px 0;
  cursor: pointer;
  transition: padding-left 320ms ease;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { padding-left: 8px; }
.faq-num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--faint);
}
.faq-q {
  font-family: var(--serif);
  font-size: 26px;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.faq-icon {
  position: relative;
  width: 18px; height: 18px;
  justify-self: end;
}
.faq-icon::before, .faq-icon::after {
  content: '';
  position: absolute;
  background: var(--ink);
  transition: transform 280ms ease;
}
.faq-icon::before {
  left: 0; right: 0; top: 50%;
  height: 1px; transform: translateY(-0.5px);
}
.faq-icon::after {
  top: 0; bottom: 0; left: 50%;
  width: 1px; transform: translateX(-0.5px);
}
.faq-item[open] .faq-icon::after { transform: translateX(-0.5px) rotate(90deg); }
.faq-a {
  padding: 0 0 28px 84px;
  max-width: 760px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--muted);
  animation: faq-open 460ms cubic-bezier(.2,.7,.2,1);
}
@keyframes faq-open {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: none; }
}

/* ==========  Final CTA  ========== */
.cta {
  background: var(--ink);
  color: var(--paper);
  padding: 160px var(--pad-x);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta::before {
  content: '';
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 60%;
  background:
    radial-gradient(600px 240px at 50% 0%, color-mix(in oklab, var(--accent) 20%, transparent), transparent 70%);
}
.cta-eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(250,250,247,0.5);
  margin-bottom: 28px;
  position: relative;
}
.cta-icon {
  position: relative;
  width: 120px; height: 120px;
  margin: 0 auto 28px;
  border-radius: 28px;
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.08),
    0 30px 80px -30px rgba(0,0,0,0.6),
    0 0 60px -10px color-mix(in oklab, var(--accent) 60%, transparent);
  transform: translateZ(0);
  animation: ctaIconFloat 6s ease-in-out infinite;
}
.cta-icon img {
  width: 100%; height: 100%;
  display: block;
  object-fit: cover;
}
.cta-icon::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.18), transparent 45%);
  pointer-events: none;
}
@keyframes ctaIconFloat {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-6px); }
}
.cta-display {
  font-family: var(--serif);
  font-size: clamp(60px, 10vw, 168px);
  line-height: 0.95;
  letter-spacing: -0.03em;
  margin: 0 auto 36px;
  max-width: 1100px;
  position: relative;
}
.cta-display em { font-style: italic; color: var(--accent-soft); }
.cta-display .line { display: block; overflow: hidden; }
.cta-display .line > span { display: inline-block; }

.cta-lede {
  font-size: 16px;
  color: rgba(250,250,247,0.65);
  margin: 0 0 48px;
  position: relative;
}
.cta-buttons {
  display: flex; gap: 16px;
  justify-content: center; flex-wrap: wrap;
  position: relative;
}
.store-btn {
  display: inline-flex; align-items: center; gap: 14px;
  padding: 16px 28px;
  background: var(--paper);
  color: var(--ink);
  border-radius: 6px;
  transition: transform 280ms cubic-bezier(.2,.7,.2,1), background 280ms;
}
.store-btn:hover {
  transform: translateY(-3px);
  background: var(--accent-soft);
}
.store-btn div { display: flex; flex-direction: column; text-align: left; line-height: 1.1; }
.store-small {
  font-family: var(--mono); font-size: 9px;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--muted);
}
.store-big {
  font-family: var(--serif); font-size: 22px; letter-spacing: -0.01em;
}

/* ==========  Footer  ========== */
.foot {
  background: var(--paper);
  border-top: 1px solid var(--hair);
  padding: 80px var(--pad-x) 0;
  position: relative;
  overflow: hidden;
}
.foot-top {
  display: grid;
  grid-template-columns: 1.2fr 3fr;
  gap: 60px;
  max-width: var(--maxw);
  margin: 0 auto 60px;
}
.foot-tagline {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
  max-width: 320px;
}
.foot-cols {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.foot-cols ul {
  list-style: none; padding: 0; margin: 14px 0 0;
  display: flex; flex-direction: column; gap: 8px;
}
.foot-cols li a {
  font-size: 13px;
  color: var(--ink);
  transition: color 200ms ease;
}
.foot-cols li a:hover { color: var(--accent); }

/* Trending hairstyle chart in footer (Women / Men columns) */
.foot-cols a:has(.foot-trend-num) {
  display: inline-flex; align-items: baseline; gap: 10px;
}
.foot-trend-num {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: rgba(28, 26, 22, 0.42);
  font-variant-numeric: tabular-nums;
}
.foot-trend-name {
  font-family: var(--serif);
  font-size: 14px;
  letter-spacing: -0.005em;
}

.foot-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding: 28px 0;
  border-top: 1px solid var(--hair);
  max-width: var(--maxw);
  margin: 0 auto;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}

.foot-mega {
  font-family: var(--serif);
  font-size: clamp(140px, 22vw, 380px);
  line-height: 0.85;
  letter-spacing: -0.04em;
  text-align: center;
  color: transparent;
  -webkit-text-stroke: 1px var(--hair);
  margin: 40px -20px -60px;
  user-select: none;
  pointer-events: none;
}
.foot-mega .dot { color: transparent; -webkit-text-stroke: 1px var(--accent); }

/* ==========  Responsive  ========== */
@media (max-width: 1100px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-stage { height: 560px; }
  .how-grid, .price-grid, .quote-grid { grid-template-columns: 1fr; }
  .demo-meta { grid-template-columns: repeat(2, 1fr); }
  .foot-top { grid-template-columns: 1fr; }
  .foot-cols { grid-template-columns: repeat(2, 1fr); }
  .annot-1, .annot-2, .hero-phone { display: none; }
}
@media (max-width: 700px) {
  .hero { padding: 110px var(--pad-x) 60px; }
  .hero-meta { grid-template-columns: 1fr; gap: 16px; }
  .nav-cta .link-btn { display: none; }
  .lib-grid { grid-template-columns: 1fr 1fr; }
  .feat { flex: 0 0 280px; }
  .faq-item summary { grid-template-columns: 36px 1fr 24px; gap: 14px; }
  .faq-q { font-size: 20px; }
  .faq-a { padding-left: 50px; }
  .foot-bottom { flex-direction: column; gap: 12px; }
}

/* =============================================================
   Language switcher
   ============================================================= */
.nav-cta { display: inline-flex; align-items: center; gap: 22px; }

.lang-switch { position: relative; }

.lang-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 12px 7px 11px;
  background: transparent;
  border: 1px solid color-mix(in oklch, var(--ink) 14%, transparent);
  border-radius: 999px;
  color: var(--ink);
  font-family: var(--body);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 220ms ease, background 220ms ease;
}
.lang-btn:hover {
  border-color: color-mix(in oklch, var(--ink) 32%, transparent);
  background: color-mix(in oklch, var(--ink) 4%, transparent);
}
.lang-btn svg { opacity: 0.7; }
.lang-btn[aria-expanded="true"] {
  border-color: var(--ink);
  background: color-mix(in oklch, var(--ink) 6%, transparent);
}

.lang-menu[hidden] { display: none; }
.lang-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 220px;
  background: var(--paper, #FAF7F2);
  border: 1px solid color-mix(in oklch, var(--ink) 12%, transparent);
  border-radius: 14px;
  box-shadow: 0 24px 60px -20px rgba(0,0,0,0.18), 0 2px 6px rgba(0,0,0,0.04);
  padding: 6px;
  z-index: 1000;
  animation: langMenuIn 200ms cubic-bezier(.2,.7,.2,1);
  max-height: min(70vh, 520px);
  overflow-y: auto;
}
@keyframes langMenuIn {
  from { opacity: 0; transform: translateY(-6px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.lang-item {
  display: flex; align-items: baseline; gap: 12px;
  width: 100%;
  padding: 10px 12px;
  background: transparent;
  border: 0;
  border-radius: 9px;
  color: var(--ink);
  font-family: var(--body);
  text-align: left;
  cursor: pointer;
  transition: background 160ms ease;
}
.lang-item:hover { background: color-mix(in oklch, var(--ink) 6%, transparent); }
.lang-item.is-active {
  background: var(--ink);
  color: var(--paper, #FAF7F2);
}
.lang-item .lang-code {
  font-family: var(--mono, ui-monospace, monospace);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.7;
  min-width: 44px;
}
.lang-item .lang-name {
  font-size: 14px;
  letter-spacing: 0.01em;
}
.lang-item.is-active .lang-code { opacity: 0.85; }

@media (max-width: 700px) {
  .lang-menu { right: -8px; min-width: 200px; }
  .lang-btn { padding: 6px 10px; font-size: 10.5px; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .marquee-track { animation: none; }
}