/* e-ALES marketing site */
:root {
  --bg-deep: #0f172a;
  --bg-mid: #1e3a8a;
  --bg-accent: #0f766e;
  --surface: rgba(255, 255, 255, 0.06);
  --surface-strong: rgba(255, 255, 255, 0.1);
  --text: #f8fafc;
  --text-muted: #cbd5e1;
  --brand: #60a5fa;
  --brand-2: #2dd4bf;
  --gold: #fde68a;
  --radius: 16px;
  --shadow: 0 24px 60px rgba(15, 23, 42, 0.45);
  --max: 1120px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg-deep);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--brand);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.bg-gradient {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse 80% 50% at 85% 10%, rgba(56, 189, 248, 0.22), transparent),
    radial-gradient(ellipse 60% 40% at 10% 90%, rgba(20, 184, 166, 0.18), transparent),
    linear-gradient(145deg, var(--bg-mid) 0%, #1d4ed8 42%, var(--bg-accent) 100%);
}

.bg-noise {
  position: fixed;
  inset: 0;
  z-index: -1;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  pointer-events: none;
}

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  background: rgba(15, 23, 42, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.brand:hover {
  text-decoration: none;
}

.brand img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nav a {
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 600;
  text-decoration: none;
}

.nav a:hover,
.nav a.is-active {
  color: var(--text);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.25rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border-radius: 12px;
  font-weight: 700;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  color: #fff;
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.4);
}

.btn-secondary {
  background: var(--surface-strong);
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

/* Hero */
.hero {
  padding: 4rem 0 3rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  background: rgba(96, 165, 250, 0.15);
  border: 1px solid rgba(96, 165, 250, 0.35);
  color: #bfdbfe;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.25rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
}

.hero h1 span {
  background: linear-gradient(90deg, #fff, #bfdbfe);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  font-size: 1.12rem;
  color: var(--text-muted);
  max-width: 34rem;
  margin: 0 0 1.75rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.stat strong {
  display: block;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--gold);
}

.stat span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.phone-mock {
  width: min(100%, 300px);
  aspect-ratio: 9/19;
  border-radius: 32px;
  padding: 12px;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.04));
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: var(--shadow);
}

.phone-screen {
  height: 100%;
  border-radius: 24px;
  background: linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  overflow: hidden;
}

.mock-card {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  padding: 0.85rem 1rem;
}

.mock-card h3 {
  margin: 0 0 0.25rem;
  font-size: 0.9rem;
}

.mock-card p {
  margin: 0;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.mock-badge {
  align-self: flex-start;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  background: rgba(45, 212, 191, 0.2);
  color: #5eead4;
}

/* Sections */
section {
  padding: 3.5rem 0;
}

.section-title {
  text-align: center;
  max-width: 36rem;
  margin: 0 auto 2.5rem;
}

.section-title h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}

.section-title p {
  margin: 0;
  color: var(--text-muted);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}

.feature-card {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color 0.2s, transform 0.2s;
}

.feature-card:hover {
  border-color: rgba(96, 165, 250, 0.35);
  transform: translateY(-2px);
}

.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-size: 1.25rem;
  margin-bottom: 1rem;
  background: rgba(59, 130, 246, 0.2);
}

.feature-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.feature-card p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--text-muted);
}

/* Subjects */
.subjects {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.65rem;
}

.subject-pill {
  padding: 0.5rem 1rem;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-muted);
}

/* CTA */
.cta-band {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.35), rgba(15, 118, 110, 0.35));
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 24px;
  padding: 2.5rem;
  text-align: center;
  margin: 2rem 0;
}

.cta-band h2 {
  margin: 0 0 0.5rem;
  font-size: 1.75rem;
}

.cta-band p {
  margin: 0 0 1.5rem;
  color: var(--text-muted);
}

.store-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}

.store-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.7rem 1.1rem;
  border-radius: 12px;
  background: #0f172a;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #fff;
  text-decoration: none;
  min-width: 180px;
}

.store-btn:hover {
  text-decoration: none;
  border-color: rgba(255, 255, 255, 0.3);
}

.store-btn small {
  display: block;
  font-size: 0.65rem;
  opacity: 0.75;
  font-weight: 500;
}

.store-btn strong {
  font-size: 0.95rem;
}

/* Privacy page */
.legal-page {
  padding: 2.5rem 0 4rem;
}

.legal-card {
  background: rgba(15, 23, 42, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  max-width: 48rem;
  margin-inline: auto;
}

.legal-card h1 {
  margin: 0 0 0.35rem;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
}

.legal-meta {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

.legal-card h2 {
  font-size: 1.15rem;
  margin: 2rem 0 0.65rem;
  color: #e2e8f0;
}

.legal-card p,
.legal-card li {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.legal-card ul {
  padding-left: 1.25rem;
  margin: 0.5rem 0 1rem;
}

.legal-card li {
  margin-bottom: 0.35rem;
}

.toc {
  background: var(--surface);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  margin-bottom: 2rem;
}

.toc h2 {
  margin: 0 0 0.5rem !important;
  font-size: 0.95rem !important;
}

.toc ol {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.toc a {
  color: var(--brand);
}

/* Footer */
.site-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 2rem 0;
  margin-top: 2rem;
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--text);
}

.copyright {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0;
}

/* Mobile nav */
@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
    background: rgba(15, 23, 42, 0.95);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    display: none;
  }

  .nav.is-open {
    display: flex;
  }

  .nav a {
    padding: 0.65rem 0;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-lead {
    margin-inline: auto;
  }

  .hero-actions,
  .hero-stats {
    justify-content: center;
  }

  .hero-visual {
    order: -1;
  }
}