/* FindMyTeacher — sito marketing/supporto/privacy
   Design system "Aurora": fondo near-black, aurore radiali che cambiano tonalità
   per sezione, card liquid-glass, tipografia di sistema (SF Pro su Apple).
   Palette derivata da FMT II/Views/Theme.swift. Tema scuro, self-contained. */

:root {
  --bg: #04050A;
  --bg-2: #080B15;
  --ink: #F6F8FF;
  --muted: #A6AEC6;
  --muted-2: #7C8399;
  --line: rgba(255, 255, 255, 0.10);
  --glass: rgba(255, 255, 255, 0.055);
  --glass-2: rgba(255, 255, 255, 0.085);
  --glass-stroke: rgba(255, 255, 255, 0.13);

  --orario-a: #38BDF8;  --orario-b: #4E7CF6;
  --diario-a: #4E7CF6;  --diario-b: #8B5CF6;
  --voti-a:   #8B5CF6;  --voti-b: #F472B6;  --voti-c: #F8A87E;
  --brand: #5B7DF6;

  --radius: 22px;
  --radius-sm: 14px;
  --maxw: 1120px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
          "Helvetica Neue", "Segoe UI", Roboto, system-ui, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* ---------- Aurora background (fixed, hue crossfades per section) ---------- */
.aura {
  position: fixed;
  inset: -10vmax;
  z-index: -1;
  pointer-events: none;
  background: var(--bg);
}
.aura::after { /* base vignette so bottom fades to near-black */
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(4,5,10,0) 40%, var(--bg) 92%);
}
.aura-l {
  position: absolute; inset: 0;
  opacity: 0;
  transition: opacity 1.1s ease;
  will-change: opacity;
}
.aura-l.on { opacity: 1; }

.aura-orario {
  background:
    radial-gradient(42vmax 42vmax at 12% -6%, rgba(56,189,248,0.34), transparent 60%),
    radial-gradient(46vmax 46vmax at 92% 4%, rgba(78,124,246,0.32), transparent 62%),
    radial-gradient(40vmax 40vmax at 62% 108%, rgba(94,234,212,0.14), transparent 60%);
}
.aura-diario {
  background:
    radial-gradient(44vmax 44vmax at 8% -4%, rgba(78,124,246,0.36), transparent 60%),
    radial-gradient(46vmax 46vmax at 96% 8%, rgba(139,92,246,0.34), transparent 62%),
    radial-gradient(40vmax 40vmax at 58% 106%, rgba(125,211,252,0.14), transparent 60%);
}
.aura-voti {
  background:
    radial-gradient(44vmax 44vmax at 10% -6%, rgba(139,92,246,0.34), transparent 60%),
    radial-gradient(46vmax 46vmax at 94% 6%, rgba(244,114,182,0.30), transparent 62%),
    radial-gradient(42vmax 42vmax at 60% 110%, rgba(251,146,60,0.20), transparent 60%);
}
@media (prefers-reduced-motion: no-preference) {
  .aura-l { animation: drift 26s ease-in-out infinite alternate; }
  .aura-diario { animation-delay: -8s; }
  .aura-voti { animation-delay: -16s; }
  @keyframes drift {
    from { transform: translate3d(-1.5%, -1%, 0) scale(1.02); }
    to   { transform: translate3d(2%, 1.5%, 0) scale(1.06); }
  }
}

/* ---------- Layout primitives ---------- */
.wrap { width: min(100% - 2.4rem, var(--maxw)); margin-inline: auto; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--muted); margin: 0 0 0.9rem;
}
.eyebrow .dot { width: 8px; height: 8px; border-radius: 50%; background: currentColor; box-shadow: 0 0 12px currentColor; }
.grad {
  background: linear-gradient(120deg, var(--diario-a), var(--diario-b) 55%, var(--voti-b));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(140%) blur(16px);
  -webkit-backdrop-filter: saturate(140%) blur(16px);
  background: rgba(6, 8, 16, 0.55);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; gap: 1.2rem; height: 62px; }
.brand { display: inline-flex; align-items: center; gap: 0.6rem; font-weight: 700; letter-spacing: -0.01em; }
.brand img { width: 30px; height: 30px; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.4); }
.nav-links { margin-left: auto; display: flex; align-items: center; gap: 1.5rem; }
.nav-links a { color: var(--muted); font-size: 0.94rem; font-weight: 500; transition: color 0.2s; }
.nav-links a:hover { color: var(--ink); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.72rem 1.15rem; border-radius: var(--radius-sm);
  font-weight: 600; font-size: 0.96rem; cursor: pointer;
  border: 1px solid transparent; transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s;
}
.btn-primary {
  color: #fff;
  background: linear-gradient(120deg, var(--diario-a), var(--diario-b));
  box-shadow: 0 8px 24px rgba(105, 96, 246, 0.38);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(105, 96, 246, 0.5); }
.btn-ghost { color: var(--ink); background: var(--glass); border-color: var(--glass-stroke); }
.btn-ghost:hover { background: var(--glass-2); transform: translateY(-2px); }
.btn[aria-disabled="true"] { opacity: 0.85; cursor: default; }
.btn small { font-weight: 500; opacity: 0.85; }

/* ---------- Hero ---------- */
.hero { padding: clamp(3.5rem, 8vw, 6.5rem) 0 clamp(2rem, 5vw, 3.5rem); }
.hero-grid {
  display: grid; grid-template-columns: 1.15fr 0.85fr; gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: center;
}
.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.4rem); line-height: 1.02; letter-spacing: -0.035em;
  font-weight: 800; margin: 0 0 1.2rem;
}
.lede { font-size: clamp(1.05rem, 1.6vw, 1.28rem); color: var(--muted); margin: 0 0 1.8rem; max-width: 34ch; }
.cta-row { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-bottom: 1.6rem; }
.hero-facts { display: flex; flex-wrap: wrap; gap: 0.5rem 1.3rem; list-style: none; padding: 0; margin: 0; color: var(--muted-2); font-size: 0.9rem; }
.hero-facts li { display: inline-flex; align-items: center; gap: 0.45rem; }
.hero-facts li::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--orario-a); box-shadow: 0 0 8px var(--orario-a); }
.hero-device { justify-self: center; }

/* ---------- Device frame ---------- */
.device {
  position: relative; width: clamp(230px, 30vw, 300px); aspect-ratio: 1320 / 2868;
  padding: 0.6rem; border-radius: 42px;
  background: linear-gradient(155deg, #23262F, #0b0d13 70%);
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 40px 80px -30px rgba(0, 0, 0, 0.85), 0 0 0 1px rgba(0,0,0,0.5) inset;
}
.device::before { /* dynamic island */
  content: ""; position: absolute; top: 1.15rem; left: 50%; transform: translateX(-50%);
  width: 30%; height: 1.5%; min-height: 11px; background: #05060a; border-radius: 20px; z-index: 2;
}
.device img { width: 100%; height: 100%; object-fit: cover; border-radius: 34px; }
.device-tilt { transform: perspective(1400px) rotateY(-12deg) rotateX(3deg); transition: transform 0.5s ease; }
.device-tilt:hover { transform: perspective(1400px) rotateY(-4deg) rotateX(1deg); }

/* ---------- Sections ---------- */
.section { padding: clamp(3rem, 7vw, 5.5rem) 0; }
.section-head { max-width: 40ch; margin-bottom: 2.5rem; }
.section-head.center { margin-inline: auto; text-align: center; }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.9rem); line-height: 1.08; letter-spacing: -0.03em; font-weight: 800; margin: 0 0 0.8rem; }
.section p.sub { color: var(--muted); font-size: 1.08rem; margin: 0; }

/* Feature rows (alternating) */
.feature { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.5rem, 5vw, 4rem); align-items: center; padding: clamp(2.2rem, 5vw, 3.5rem) 0; }
.feature.reverse .feature-media { order: -1; }
.feature-media { justify-self: center; }
.feature h3 { font-size: clamp(1.5rem, 3vw, 2.1rem); letter-spacing: -0.02em; font-weight: 700; margin: 0 0 1rem; }
.feature-list { list-style: none; padding: 0; margin: 1.2rem 0 0; display: grid; gap: 0.9rem; }
.feature-list li { display: flex; gap: 0.7rem; align-items: flex-start; color: var(--muted); }
.feature-list li strong { color: var(--ink); font-weight: 600; }
.tick { flex: none; width: 22px; height: 22px; margin-top: 1px; border-radius: 7px; display: grid; place-items: center; font-size: 0.8rem; color: #fff; }
.tick.orario { background: linear-gradient(135deg, var(--orario-a), var(--orario-b)); }
.tick.diario { background: linear-gradient(135deg, var(--diario-a), var(--diario-b)); }
.tick.voti { background: linear-gradient(135deg, var(--voti-a), var(--voti-b)); }

/* ---------- Glass card ---------- */
.card {
  background: var(--glass); border: 1px solid var(--glass-stroke);
  border-radius: var(--radius); padding: 1.6rem;
  box-shadow: 0 20px 50px -30px rgba(0, 0, 0, 0.7);
}

/* Privacy band */
.privacy-band { padding: clamp(3rem, 7vw, 5rem) 0; }
.privacy-inner { text-align: center; max-width: 52ch; margin-inline: auto; }
.shield { width: 62px; height: 62px; margin: 0 auto 1.2rem; border-radius: 18px; display: grid; place-items: center; font-size: 1.8rem;
  background: linear-gradient(135deg, var(--voti-a), var(--voti-b)); box-shadow: 0 12px 34px -8px rgba(139,92,246,0.55); }
.pill-row { display: flex; flex-wrap: wrap; gap: 0.6rem; justify-content: center; margin-top: 1.6rem; }
.pill { font-size: 0.86rem; color: var(--ink); background: var(--glass); border: 1px solid var(--glass-stroke); border-radius: 999px; padding: 0.45rem 0.95rem; }

/* Final CTA */
.cta-final { text-align: center; }
.cta-final .card { padding: clamp(2rem, 5vw, 3.2rem); }

/* ---------- FAQ (support) ---------- */
.faq { display: grid; gap: 0.8rem; max-width: 760px; margin-inline: auto; }
.faq details { background: var(--glass); border: 1px solid var(--glass-stroke); border-radius: var(--radius-sm); overflow: hidden; }
.faq summary { cursor: pointer; list-style: none; padding: 1.05rem 1.2rem; font-weight: 600; display: flex; justify-content: space-between; gap: 1rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--brand); font-weight: 700; font-size: 1.3rem; line-height: 1; }
.faq details[open] summary::after { content: "\2013"; }
.faq details > p { margin: 0; padding: 0 1.2rem 1.15rem; color: var(--muted); }

/* ---------- Prose (privacy) ---------- */
.prose { max-width: 720px; margin-inline: auto; }
.prose h2 { font-size: clamp(1.3rem, 2.4vw, 1.7rem); margin: 2.2rem 0 0.7rem; }
.prose h1 { font-size: clamp(2rem, 4vw, 2.8rem); letter-spacing: -0.03em; margin: 0 0 0.4rem; }
.prose p, .prose li { color: var(--muted); }
.prose strong { color: var(--ink); }
.prose ul { padding-left: 1.1rem; display: grid; gap: 0.4rem; }
.prose a { color: var(--brand); text-decoration: underline; text-underline-offset: 3px; }
.updated { color: var(--muted-2); font-size: 0.92rem; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); margin-top: 3rem; padding: 2.5rem 0; }
.footer-grid { display: flex; flex-wrap: wrap; gap: 1.5rem; align-items: center; justify-content: space-between; }
.footer-brand { display: inline-flex; align-items: center; gap: 0.6rem; font-weight: 700; }
.footer-brand img { width: 34px; height: 34px; border-radius: 9px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 1.2rem; }
.footer-links a { color: var(--muted); font-size: 0.92rem; }
.footer-links a:hover { color: var(--ink); }
.footer-note { color: var(--muted-2); font-size: 0.84rem; margin-top: 1.4rem; }

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .device-tilt { transform: none; }
  .aura-l { animation: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero-copy { order: 2; }
  .hero-device { order: 1; }
  .lede { margin-inline: auto; }
  .cta-row, .hero-facts { justify-content: center; }
  .feature { grid-template-columns: 1fr; }
  .feature.reverse .feature-media { order: 0; }
  .feature-media { order: -1 !important; }
  .section-head { margin-inline: auto; }
  .nav-links .hide-sm { display: none; }
  .device-tilt { transform: none; }
}
@media (max-width: 460px) {
  body { font-size: 16px; }
  .nav-links { gap: 1rem; }
}