/* ── Reset & Base ────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --green: #30d158;
  --green-dim: #1a8a38;
  --bg: #000000;
  --surface: #111111;
  --surface-2: #1a1a1a;
  --text: #e5e5e7;
  --text-dim: #98989f;
  --border: #2c2c2e;
  --radius: 16px;
  --max-w: 1080px;
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: var(--green); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; height: auto; }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

/* ── Nav ─────────────────────────────────────────────── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(0,0,0,.82);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border);
}

nav .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 52px;
}

.nav-brand {
  display: flex; align-items: center; gap: 10px;
  font-family: 'SF Mono', ui-monospace, monospace;
  font-weight: 700; font-size: 18px; color: var(--green);
}

.nav-brand img { width: 32px; height: 32px; border-radius: 8px; }

.nav-links { display: flex; gap: 28px; list-style: none; }
.nav-links a { color: var(--text-dim); font-size: 14px; font-weight: 500; transition: color .2s; }
.nav-links a:hover { color: var(--green); text-decoration: none; }

/* ── Hero ────────────────────────────────────────────── */
.hero {
  padding: 140px 0 80px;
  text-align: center;
  background: radial-gradient(ellipse at 50% 0%, rgba(48,209,88,.08) 0%, transparent 60%);
}

.hero-badge {
  display: inline-block;
  font-family: 'SF Mono', ui-monospace, monospace;
  font-size: 13px; font-weight: 600;
  color: var(--green);
  background: rgba(48,209,88,.1);
  border: 1px solid rgba(48,209,88,.2);
  padding: 6px 16px; border-radius: 100px;
  margin-bottom: 24px;
  letter-spacing: .5px;
}

.hero h1 {
  font-size: clamp(40px, 6vw, 64px);
  font-weight: 800;
  letter-spacing: -1.5px;
  line-height: 1.1;
  margin-bottom: 20px;
}

.hero h1 .accent { color: var(--green); }

.hero p {
  font-size: 20px; color: var(--text-dim);
  max-width: 560px; margin: 0 auto 36px;
  line-height: 1.5;
}

.app-store-badge {
  display: inline-block;
  transition: opacity .2s;
}
.app-store-badge:hover { opacity: .8; }
.app-store-badge img { height: 54px; }

/* ── Phone Mockup ────────────────────────────────────── */
.hero-device {
  margin: 56px auto 0;
  max-width: 300px;
  border-radius: 36px;
  border: 3px solid var(--border);
  overflow: hidden;
  background: var(--surface);
  box-shadow: 0 40px 80px rgba(0,0,0,.6), 0 0 0 1px rgba(255,255,255,.05);
}

.hero-device .screen {
  background: var(--bg);
  padding: 24px 20px;
  font-family: 'SF Mono', ui-monospace, monospace;
}

.screen-header {
  color: var(--text-dim);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.screen-lesson {
  display: flex; align-items: center; gap: 12px;
  padding: 14px;
  background: var(--surface-2);
  border-radius: 12px;
  margin-bottom: 8px;
  border: 1px solid var(--border);
}

.screen-lesson .num {
  width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 8px;
  background: rgba(48,209,88,.15);
  color: var(--green);
  font-size: 13px; font-weight: 700;
}

.screen-lesson .title {
  font-size: 12px; color: var(--text);
  font-weight: 600;
}

.screen-lesson .sub {
  font-size: 10px; color: var(--text-dim);
  margin-top: 2px;
}

.screen-radio {
  margin-top: 16px;
  padding: 16px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.screen-radio .label {
  font-size: 10px; color: var(--green);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.screen-radio .msg {
  font-size: 12px; color: var(--text);
  line-height: 1.5;
}

/* ── Features ────────────────────────────────────────── */
.features { padding: 100px 0; }

.section-label {
  font-family: 'SF Mono', ui-monospace, monospace;
  font-size: 13px; font-weight: 600;
  color: var(--green); text-transform: uppercase;
  letter-spacing: 1.5px;
  text-align: center; margin-bottom: 12px;
}

.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700; text-align: center;
  letter-spacing: -0.5px;
  margin-bottom: 60px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: border-color .2s, transform .2s;
}
.feature-card:hover {
  border-color: rgba(48,209,88,.3);
  transform: translateY(-2px);
}

.feature-icon {
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(48,209,88,.1);
  border-radius: 12px;
  font-size: 24px;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 18px; font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 15px; color: var(--text-dim); line-height: 1.5;
}

/* ── Curriculum ──────────────────────────────────────── */
.curriculum {
  padding: 100px 0;
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.lesson-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px;
  margin-top: 48px;
}

.lesson-item {
  display: flex; align-items: center; gap: 16px;
  padding: 16px 20px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: border-color .2s;
}
.lesson-item:hover { border-color: rgba(48,209,88,.25); }

.lesson-num {
  font-family: 'SF Mono', ui-monospace, monospace;
  font-size: 14px; font-weight: 700;
  color: var(--green);
  min-width: 28px;
}

.lesson-info h4 {
  font-size: 15px; font-weight: 600;
}

.lesson-info span {
  font-size: 12px; color: var(--text-dim);
}

.lesson-item .badge-free {
  margin-left: auto;
  font-size: 10px; font-weight: 700;
  text-transform: uppercase; letter-spacing: .5px;
  color: var(--green);
  background: rgba(48,209,88,.12);
  padding: 4px 8px; border-radius: 6px;
}

.lesson-item .badge-pro {
  margin-left: auto;
  font-size: 10px; font-weight: 700;
  text-transform: uppercase; letter-spacing: .5px;
  color: #bf5af2;
  background: rgba(191,90,242,.12);
  padding: 4px 8px; border-radius: 6px;
}

/* ── Pricing ─────────────────────────────────────────── */
.pricing { padding: 100px 0; }

.pricing-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  max-width: 720px;
  margin: 48px auto 0;
}

.pricing-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  text-align: center;
}

.pricing-card.featured {
  border-color: var(--green);
  position: relative;
}

.pricing-card.featured::before {
  content: 'BEST VALUE';
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--green); color: #000;
  font-size: 11px; font-weight: 800;
  padding: 4px 14px; border-radius: 100px;
  letter-spacing: .5px;
}

.pricing-card h3 {
  font-family: 'SF Mono', ui-monospace, monospace;
  font-size: 20px; font-weight: 700;
  margin-bottom: 8px;
}

.pricing-card .price {
  font-size: 40px; font-weight: 800;
  margin-bottom: 4px;
}

.pricing-card .price-sub {
  font-size: 14px; color: var(--text-dim);
  margin-bottom: 24px;
}

.pricing-card ul {
  list-style: none; text-align: left;
  margin-bottom: 28px;
}

.pricing-card li {
  font-size: 15px; color: var(--text-dim);
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 10px;
}

.pricing-card li::before {
  content: '✓';
  color: var(--green); font-weight: 700;
}

.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 12px;
  font-size: 16px; font-weight: 700;
  border: none; cursor: pointer;
  transition: opacity .2s, transform .1s;
  text-decoration: none;
}
.btn:hover { opacity: .9; text-decoration: none; transform: translateY(-1px); }

.btn-green {
  background: var(--green); color: #000;
}

.btn-outline {
  background: transparent; color: var(--green);
  border: 1.5px solid var(--green);
}

/* ── Footer ──────────────────────────────────────────── */
footer {
  padding: 48px 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 16px;
}

.footer-brand {
  font-family: 'SF Mono', ui-monospace, monospace;
  font-weight: 700; font-size: 16px; color: var(--green);
}

.footer-links { display: flex; gap: 24px; list-style: none; }
.footer-links a { font-size: 14px; color: var(--text-dim); }
.footer-links a:hover { color: var(--green); }

.footer-copy {
  width: 100%;
  text-align: center;
  font-size: 13px; color: var(--text-dim);
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

/* ── Legal Pages (Privacy / Support) ─────────────────── */
.legal-page {
  padding: 120px 0 80px;
  max-width: 720px;
  margin: 0 auto;
}

.legal-page h1 {
  font-size: 36px; font-weight: 800;
  margin-bottom: 8px;
}

.legal-page .updated {
  font-size: 14px; color: var(--text-dim);
  margin-bottom: 40px;
}

.legal-page h2 {
  font-size: 22px; font-weight: 700;
  margin-top: 36px; margin-bottom: 12px;
}

.legal-page p, .legal-page li {
  font-size: 16px; color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 16px;
}

.legal-page ul { padding-left: 24px; margin-bottom: 16px; }

.legal-page a { color: var(--green); }

/* ── Support Page extras ─────────────────────────────── */
.support-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 20px;
}

.support-card h3 {
  font-size: 18px; font-weight: 700;
  margin-bottom: 8px;
}

.support-card p {
  margin-bottom: 0;
}

.faq-item { margin-bottom: 28px; }
.faq-item h3 {
  font-size: 17px; font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}
.faq-item p {
  margin-bottom: 0;
}

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 640px) {
  .nav-links { display: none; }
  .hero { padding: 120px 0 60px; }
  .hero p { font-size: 17px; }
  .features, .curriculum, .pricing { padding: 60px 0; }
  .features-grid { grid-template-columns: 1fr; }
  .pricing-cards { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-links { justify-content: center; }
}