/* Learn3Music public landing. Palette, radii, shadows and gradients mirror the app (src/styles/tokens.css). */
:root {
  --l3m-purple: #9e55a3;
  --l3m-purple-dark: #7c4382;
  --l3m-purple-deep: #673a6c;
  --l3m-purple-soft: #f4e8f5;
  --l3m-purple-softer: #faf3fb;
  --l3m-blue: #526ec9;
  --l3m-blue-dark: #3f57a6;
  --l3m-blue-soft: #e9edfb;
  --l3m-orange: #f18715;
  --l3m-orange-dark: #c96e08;
  --l3m-orange-soft: #fdefe0;
  --l3m-bg: #fff7f7;
  --l3m-surface: #ffffff;
  --l3m-ink: #0d020f;
  --l3m-ink-60: rgba(13, 2, 15, 0.62);
  --l3m-ink-45: rgba(13, 2, 15, 0.47);
  --l3m-border: rgba(13, 2, 15, 0.09);
  --mark-no: #d64545;
  --mark-no-soft: #fdeaea;
  --mark-yes: #1e9e5c;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --shadow-sm: 0 1px 2px rgba(13, 2, 15, 0.06), 0 1px 6px rgba(13, 2, 15, 0.04);
  --shadow-md: 0 4px 16px rgba(13, 2, 15, 0.09);
  --grad-primary: linear-gradient(135deg, var(--l3m-purple) 0%, var(--l3m-blue) 100%);
  --grad-warm: linear-gradient(135deg, #f18715 0%, #e06a0a 100%);
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--l3m-bg);
  color: var(--l3m-ink);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
h1, h2, h3, p, figure, ul, ol { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
:focus-visible { outline: 3px solid rgba(158, 85, 163, 0.45); outline-offset: 3px; border-radius: 6px; }

.container { width: min(1160px, 100% - 32px); margin: 0 auto; }
.grad-text {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ============ Buttons (same shapes as the app .btn) ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 52px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  transition: transform 0.12s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--grad-primary); color: #fff; box-shadow: 0 4px 12px rgba(158, 85, 163, 0.28); }
.btn-primary:hover { box-shadow: 0 8px 20px rgba(158, 85, 163, 0.34); }
.btn-secondary { background: var(--l3m-surface); color: var(--l3m-blue-dark); border: 1.5px solid var(--l3m-blue); }
.btn-secondary:hover { background: var(--l3m-blue-soft); }
.btn-light { background: #fff; color: var(--l3m-purple-deep); box-shadow: var(--shadow-md); }
.btn-small { min-height: 42px; padding: 8px 18px; font-size: 0.95rem; border-radius: var(--radius-sm); }

/* ============ Header ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(255, 247, 247, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--l3m-border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 800; font-size: 1.2rem; letter-spacing: -0.01em; }
.brand img { width: 36px; height: auto; }
.brand b { color: var(--l3m-orange); }
.desktop-nav { display: flex; gap: 28px; }
.desktop-nav a, .login-link { text-decoration: none; font-weight: 600; font-size: 0.95rem; color: var(--l3m-ink-60); }
.desktop-nav a:hover, .login-link:hover { color: var(--l3m-purple-dark); }
.header-actions { display: flex; align-items: center; gap: 16px; }
.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--l3m-border);
  border-radius: var(--radius-sm);
  background: var(--l3m-surface);
  padding: 12px 11px;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
}
.menu-button span { display: block; height: 2px; border-radius: 2px; background: var(--l3m-ink); }
.mobile-nav { display: none; }

/* ============ Hero ============ */
.hero {
  position: relative;
  padding: 64px 0 56px;
  background:
    radial-gradient(420px 320px at 4% 8%, rgba(158, 85, 163, 0.16), transparent 70%),
    radial-gradient(460px 360px at 96% 18%, rgba(82, 110, 201, 0.14), transparent 70%),
    radial-gradient(420px 320px at 70% 100%, rgba(241, 135, 21, 0.13), transparent 70%);
}
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
.instrument-roster { display: grid; gap: 14px; margin-top: 26px; max-width: 34em; }
.roster-label { font-size: 0.74rem; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; color: var(--l3m-ink-45); margin-bottom: 8px; }
.instrument-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.instrument-chips li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.85rem;
}
.chip-live { background: var(--grad-primary); color: #fff; box-shadow: 0 4px 12px rgba(158, 85, 163, 0.28); }
.chip-live small { font-weight: 600; font-size: 0.8rem; opacity: 0.85; }
.live-dot { width: 8px; height: 8px; border-radius: 50%; background: #fff; box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3); }
.chip-soon { background: var(--l3m-surface); border: 1px dashed rgba(158, 85, 163, 0.35); color: var(--l3m-purple-deep); }
.hero h1 { font-size: clamp(2.4rem, 5.2vw, 4rem); line-height: 1.06; letter-spacing: -0.035em; font-weight: 800; }
.hero h1 .grad-text { display: inline-block; padding-bottom: 0.08em; }
.hero-text { margin-top: 22px; max-width: 34em; font-size: 1.12rem; color: var(--l3m-ink-60); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.hero-note { margin-top: 16px; font-size: 0.9rem; color: var(--l3m-ink-45); }

.hero-visual { position: relative; height: 580px; }
.phone {
  background: var(--l3m-surface);
  border: 7px solid #fff;
  border-radius: 34px;
  box-shadow: 0 2px 4px rgba(13, 2, 15, 0.05), 0 24px 60px rgba(103, 58, 108, 0.18);
  overflow: hidden;
  outline: 1px solid var(--l3m-border);
}
.phone img { width: 100%; border-radius: 27px; }
.phone figcaption { display: none; }
.hero-visual .phone { position: absolute; width: 290px; }
.phone-back { top: 0; left: 4%; transform: rotate(-4deg); }
.phone-front { top: 70px; right: 2%; transform: rotate(3deg); }

/* ============ Facts strip ============ */
.facts { padding: 0 0 24px; }
.facts-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--l3m-surface);
  border: 1px solid var(--l3m-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.fact { display: flex; align-items: center; gap: 14px; padding: 22px 24px; }
.fact + .fact { border-left: 1px solid var(--l3m-border); }
.fact strong { font-size: 2.2rem; font-weight: 800; line-height: 1; letter-spacing: -0.03em; color: var(--l3m-purple); }
.fact:nth-child(2) strong { color: var(--l3m-blue); }
.fact:nth-child(3) strong { color: var(--l3m-orange); }
.fact span { font-size: 0.92rem; line-height: 1.35; color: var(--l3m-ink-60); }

/* ============ Sections ============ */
.section { padding: 96px 0; }
.section-soft { background: linear-gradient(180deg, rgba(244, 232, 245, 0.5), rgba(255, 247, 247, 0)); }
.section-warm { background: linear-gradient(180deg, rgba(253, 239, 224, 0.75), rgba(255, 247, 247, 0)); }
.section-heading { max-width: 640px; margin: 0 auto 56px; text-align: center; }
.eyebrow { font-size: 0.82rem; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; color: var(--l3m-purple); margin-bottom: 12px; }
.eyebrow-orange { color: var(--l3m-orange-dark); }
.eyebrow-blue { color: var(--l3m-blue); }
.pro-badge { display: inline-block; margin-left: 6px; padding: 2px 9px; border-radius: 999px; background: linear-gradient(135deg, var(--l3m-orange) 0%, var(--l3m-purple) 100%); color: #fff; font-size: 0.72rem; letter-spacing: 0.08em; vertical-align: 1px; }
.pro-note { margin-top: 18px; padding: 14px 16px; border-left: 3px solid var(--l3m-orange); border-radius: var(--radius-md); background: var(--l3m-orange-soft); font-size: 0.95rem; line-height: 1.5; max-width: 34em; }
.split-copy > p.pro-note { color: var(--l3m-ink); font-size: 0.95rem; }
.section h2 { font-size: clamp(1.9rem, 3.6vw, 2.8rem); line-height: 1.12; letter-spacing: -0.03em; font-weight: 800; }
.section-heading p:not(.eyebrow) { margin-top: 16px; color: var(--l3m-ink-60); font-size: 1.08rem; }

/* Demo video */
.demo-video { width: min(340px, 100%); margin: 0 auto; }
.demo-video video { display: block; width: 100%; height: auto; border-radius: 27px; background: #000; }

/* How it works */
.loop-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 64px; align-items: center; }
.loop-steps { display: grid; gap: 14px; }
.loop-steps li {
  display: flex;
  gap: 18px;
  padding: 22px 24px;
  background: var(--l3m-surface);
  border: 1px solid var(--l3m-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.step-num {
  flex: none;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--grad-primary);
  color: #fff;
  font-weight: 800;
}
.loop-steps h3 { font-size: 1.12rem; margin-bottom: 4px; }
.loop-steps p { color: var(--l3m-ink-60); font-size: 0.98rem; }
.loop-steps em { font-style: normal; font-weight: 700; color: var(--l3m-purple-deep); }
.loop-shots { display: flex; justify-content: center; }
.loop-shots .phone { width: min(330px, 100%); }

/* Split sections */
.split { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 72px; align-items: center; }
.split-reverse { grid-template-columns: 1.2fr 0.8fr; }
.split-shot { width: min(330px, 100%); justify-self: center; }
.split-shot-short { width: min(360px, 100%); }
.split-copy > p:not(.eyebrow) { margin-top: 16px; color: var(--l3m-ink-60); font-size: 1.06rem; max-width: 34em; }
.split-copy .split-note { font-size: 0.98rem; }

.warmup-steps { display: grid; gap: 12px; margin-top: 28px; }
.warmup-steps li {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  border-radius: var(--radius-lg);
  background: var(--l3m-surface);
  border: 1px solid rgba(241, 135, 21, 0.25);
  box-shadow: var(--shadow-sm);
}
.warm-num {
  flex: none;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: var(--grad-warm);
  color: #fff;
  font-weight: 800;
  box-shadow: 0 6px 16px rgba(241, 135, 21, 0.32);
}
.warmup-steps strong { display: block; font-size: 1.05rem; }
.warmup-steps small { display: block; color: var(--l3m-ink-60); font-size: 0.92rem; line-height: 1.4; }

.goal-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.goal-chips li {
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--l3m-surface);
  border: 1px solid var(--l3m-border);
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--l3m-ink-60);
}
.goal-chips li:first-child { background: var(--l3m-purple); border-color: var(--l3m-purple); color: #fff; }

.coming-next {
  margin-top: 28px;
  max-width: 34em;
  padding: 20px 22px;
  border-radius: var(--radius-lg);
  background: var(--l3m-surface);
  border: 1px dashed rgba(82, 110, 201, 0.4);
}
.coming-label { display: flex; align-items: center; gap: 8px; font-size: 0.78rem; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; color: var(--l3m-blue); }
.coming-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--l3m-blue); box-shadow: 0 0 0 3px var(--l3m-blue-soft); }
.coming-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.coming-list li { padding: 7px 14px; border-radius: 999px; background: var(--l3m-blue-soft); color: var(--l3m-ink); font-size: 0.92rem; font-weight: 700; line-height: 1.3; }

.metric-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 28px; max-width: 660px; }
.metric { padding: 20px; border-radius: var(--radius-lg); background: var(--l3m-surface); border: 1px solid var(--l3m-border); box-shadow: var(--shadow-sm); }
.metric-icon { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 12px; margin-bottom: 12px; }
.metric-orange { background: var(--l3m-orange-soft); color: var(--l3m-orange); }
.metric-blue { background: var(--l3m-blue-soft); color: var(--l3m-blue); }
.metric-purple { background: var(--l3m-purple-soft); color: var(--l3m-purple); }
.soon-badge { display: inline-block; margin-left: 4px; padding: 1px 8px; border-radius: 999px; background: var(--l3m-purple-soft); color: var(--l3m-purple-deep); font-size: 0.7rem; font-weight: 800; letter-spacing: 0.04em; text-transform: uppercase; vertical-align: 2px; }
.metric strong { display: block; }
.metric small { display: block; color: var(--l3m-ink-60); font-size: 0.9rem; line-height: 1.4; margin-top: 2px; }

/* Method */
.versus { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.versus-card { padding: 32px; border-radius: var(--radius-lg); }
.versus-other {
  background:
    radial-gradient(320px 240px at 0% 0%, rgba(214, 69, 69, 0.08), transparent 70%),
    rgba(13, 2, 15, 0.03);
  border: 1px solid rgba(214, 69, 69, 0.22);
}
.versus-l3m {
  background:
    radial-gradient(320px 240px at 100% 0%, rgba(158, 85, 163, 0.1), transparent 70%),
    var(--l3m-surface);
  border: 1.5px solid rgba(158, 85, 163, 0.45);
  box-shadow: 0 12px 32px rgba(103, 58, 108, 0.14);
}
.versus-label { font-size: 0.82rem; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; color: var(--l3m-ink-45); }
.versus-other .versus-label { color: var(--mark-no); }
.versus-l3m .versus-label { color: var(--l3m-purple); }
.versus-list { display: grid; gap: 14px; margin-top: 18px; }
.versus-list li { display: flex; gap: 12px; font-size: 0.98rem; line-height: 1.5; }
.versus-other .versus-list li { color: var(--l3m-ink-60); }
.mark { flex: none; display: grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; font-size: 0.95rem; font-weight: 800; margin-top: -1px; }
.mark-no { background: var(--mark-no-soft); color: var(--mark-no); box-shadow: inset 0 0 0 1.5px rgba(214, 69, 69, 0.35); }
.mark-yes { background: var(--mark-yes); color: #fff; box-shadow: 0 4px 10px rgba(30, 158, 92, 0.35); }

.method-notes { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 24px; padding: 0 8px; }
.method-notes li { color: var(--l3m-ink-45); font-size: 0.9rem; line-height: 1.5; }
.method-notes strong { color: var(--l3m-ink-60); }

/* FAQ */
.faq-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 56px; align-items: start; }
.faq-list { display: grid; gap: 12px; }
.faq-list details {
  background: var(--l3m-surface);
  border: 1px solid var(--l3m-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 0 22px;
}
.faq-list details[open] { border-color: rgba(158, 85, 163, 0.3); }
.faq-list summary {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: '+'; flex: none; font-size: 1.3rem; line-height: 1; color: var(--l3m-purple); }
.faq-list details[open] summary::after { content: '−'; }
.faq-list details p { padding-bottom: 18px; color: var(--l3m-ink-60); font-size: 0.98rem; }

/* Closing CTA */
.closing { padding-top: 24px; }
.cta-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 64px 32px;
  border-radius: 28px;
  background: var(--grad-primary);
  color: #fff;
  box-shadow: 0 18px 48px rgba(103, 58, 108, 0.28);
}
.cta-card img { width: 64px; padding: 10px; box-sizing: content-box; background: #fff; border-radius: 20px; margin-bottom: 22px; }
.cta-card p { margin: 12px 0 28px; color: rgba(255, 255, 255, 0.86); font-size: 1.08rem; }

/* Footer */
.site-footer { padding: 40px 0 48px; border-top: 1px solid var(--l3m-border); }
.footer-grid { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px 32px; }
.footer-grid nav { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.footer-grid nav a { text-decoration: none; font-size: 0.92rem; color: var(--l3m-ink-60); }
.footer-grid nav a:hover { color: var(--l3m-purple-dark); }
.footer-grid p { font-size: 0.88rem; color: var(--l3m-ink-45); }
.site-footer .brand { font-size: 1.05rem; }
.site-footer .brand img { width: 32px; }

/* ============ Responsive ============ */
@media (max-width: 980px) {
  .desktop-nav, .login-link { display: none; }
  .menu-button { display: flex; }
  .mobile-nav.open {
    display: grid;
    padding: 8px 16px 16px;
    border-top: 1px solid var(--l3m-border);
  }
  .mobile-nav a { padding: 12px 4px; text-decoration: none; font-weight: 600; border-bottom: 1px solid var(--l3m-border); }
  .mobile-nav a:last-child { border-bottom: 0; color: var(--l3m-purple-dark); }

  .hero { padding: 48px 0 64px; }
  .hero-grid, .loop-grid, .split, .split-reverse, .faq-grid { grid-template-columns: 1fr; }
  .hero-grid { gap: 40px; }
  .hero-visual { height: 520px; max-width: 520px; width: 100%; margin: 0 auto; }
  .hero-visual .phone { width: 250px; }
  .facts-grid { grid-template-columns: 1fr 1fr; }
  .fact:nth-child(3) { border-left: 0; }
  .fact:nth-child(n + 3) { border-top: 1px solid var(--l3m-border); }
  .section { padding: 72px 0; }
  .loop-grid, .split, .split-reverse { gap: 40px; }
  .split .split-shot { order: 2; }
  .versus, .method-notes { grid-template-columns: 1fr; }
  .versus-card { padding: 26px 22px; }
  .faq-grid { gap: 24px; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .header-actions .btn-small { padding: 8px 14px; }
  .brand span { font-size: 1.05rem; }
  .hero-actions .btn { flex: 1 1 100%; }
  .hero-visual { height: 430px; }
  .hero-visual .phone { width: 205px; border-width: 5px; border-radius: 26px; }
  .hero-visual .phone img { border-radius: 21px; }
  .phone-back { left: 0; }
  .phone-front { top: 56px; right: 0; }
  .facts-grid { grid-template-columns: 1fr; }
  .fact + .fact { border-left: 0; border-top: 1px solid var(--l3m-border); }
  .fact { padding: 16px 20px; }
  .loop-steps li { padding: 18px; gap: 14px; }
  .metric-row { grid-template-columns: 1fr; }
  .cta-card { padding: 48px 22px; }
  .footer-grid { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn { transition: none; }
  .btn:hover { transform: none; }
}