/* ═══════════════════════════════════════════════════════════════
   AUREA OS — Landing page styles
   Palette chiara premium + accento brand (gradiente blu/viola).
   ═══════════════════════════════════════════════════════════════ */

:root {
  --bg:          #F7F9FF;
  --bg-alt:      #F7F9FF;
  --surface:     #FFFFFF;
  --surface-2:   #FFFFFF;
  --border:      #DDE6F6;
  --border-soft: rgba(5,8,28,.07);
  --text:        #05081C;
  --text-muted:  #6A7582;
  --text-faint:  #97A1B0;
  --gold:        #3172F0;
  --gold-light:  #64D0F6;
  --gold-dark:   #613AEC;
  --gold-soft:   rgba(49,114,240,.10);
  --radius:      14px;
  --radius-lg:   20px;
  --container:   1120px;
  --shadow-card: 0 20px 40px -24px rgba(5,8,28,.12);
  --aurea-gradient: linear-gradient(135deg, #64D0F6 0%, #3172F0 42%, #613AEC 72%, #7338ED 100%);
  --aurea-gradient-soft: linear-gradient(135deg, rgba(100, 208, 246, 0.18) 0%, rgba(49, 114, 240, 0.14) 45%, rgba(115, 56, 237, 0.16) 100%);
  --aurea-glow: radial-gradient(circle at top left, rgba(100, 208, 246, 0.35), transparent 35%),
                radial-gradient(circle at bottom right, rgba(115, 56, 237, 0.35), transparent 40%);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: #fff;
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
img, svg { display: block; max-width: 100%; }

.section-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 14px;
}

section h2 {
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 800;
  letter-spacing: -.01em;
  max-width: 720px;
  margin-bottom: 16px;
}

.section-lead {
  color: var(--text-muted);
  font-size: 16px;
  max-width: 640px;
  margin-bottom: 40px;
}

/* ── Buttons ─────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, opacity .15s ease, background-color .15s ease, border-color .15s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-gold {
  background: var(--aurea-gradient);
  color: #fff;
}
.btn-gold:hover { opacity: .92; }

.btn-outline {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn-outline:hover { border-color: var(--gold); color: var(--gold); }

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  padding-left: 10px;
  padding-right: 10px;
}
.btn-ghost:hover { color: var(--text); }

.btn-lg { padding: 15px 30px; font-size: 15px; }

/* ── Nav ─────────────────────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-soft);
}
.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 16px 28px;
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-logo {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: .04em;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-logo-icon { width: 34px; height: auto; display: block; }
.nav-logo span { color: var(--gold); }

.nav-links {
  display: flex;
  gap: 28px;
  flex: 1;
}
.nav-links a {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
}
.nav-links a:hover { color: var(--text); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
}

/* ── Hero ────────────────────────────────────────────────────────── */
.hero {
  padding: 130px 0 110px;
  text-align: center;
  background-color: #fff;
  background-image: url('/assets/hero-bg-aurea.png');
  background-repeat: no-repeat;
  background-position: right center;
  background-size: cover;
}
.hero-inner {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 28px;
}
.eyebrow {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 20px;
}
.hero h1 {
  font-size: clamp(48px, 9vw, 84px);
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1;
  background: linear-gradient(135deg, #05081C 0%, #3172F0 50%, #613AEC 78%, #7338ED 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 22px;
}
.hero-sub {
  font-size: clamp(18px, 2.4vw, 22px);
  font-weight: 600;
  color: var(--text);
  margin-bottom: 14px;
}
.hero-claim {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 40px;
}
.hero-cta {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* ── Problem ─────────────────────────────────────────────────────── */
.problem { padding: 90px 0; background: var(--bg-alt); border-top: 1px solid var(--border-soft); border-bottom: 1px solid var(--border-soft); }
.problem-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 14px 32px;
  max-width: 720px;
}
.problem-list li {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 15px;
  color: var(--text-muted);
  padding: 14px 0;
  border-bottom: 1px solid var(--border-soft);
}
.problem-icon {
  font-size: 12px;
  font-weight: 800;
  color: var(--gold);
  border: 1px solid var(--border);
  border-radius: 999px;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ── Solution ────────────────────────────────────────────────────── */
.solution { padding: 90px 0 110px; }

/* Orbita: icona AUREA OS al centro, con le fasi del flusso di lavoro
   che ruotano intorno lungo un binario circolare. Le due animazioni
   (.orbit-ring in avanti, .orbit-pill in senso opposto, stessa durata)
   si annullano a vicenda: il pallino orbita ma l'etichetta resta dritta. */
.orbit-wrap {
  --orbit-size: 560px;
  --orbit-radius: 230px;
  position: relative;
  width: var(--orbit-size);
  height: var(--orbit-size);
  max-width: 100%;
  margin: 30px auto 0;
}
.orbit-track {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--border);
  inset: calc((var(--orbit-size) / 2) - var(--orbit-radius));
}
.orbit-track-inner { border: 1px dashed var(--gold-soft); transform: scale(.78); }

.orbit-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 112px;
  height: 112px;
  border-radius: 50%;
  background: #fff;
  box-shadow: var(--shadow-card);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 5;
}
.orbit-center::before {
  content: '';
  position: absolute;
  inset: -22px;
  border-radius: 50%;
  background: var(--aurea-gradient-soft);
  z-index: -1;
}
.orbit-logo { width: 64px; height: auto; }

.orbit-ring {
  position: absolute;
  inset: 0;
  animation: orbit-spin 36s linear infinite;
}
.orbit-wrap:hover .orbit-ring,
.orbit-wrap:hover .orbit-pill { animation-play-state: paused; }

.orbit-item {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  transform: rotate(var(--angle)) translateX(var(--orbit-radius));
}
.orbit-pill {
  position: absolute;
  top: 0;
  left: 0;
  transform: translate(-50%, -50%) rotate(calc(-1 * var(--angle)));
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  padding: 10px 18px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--border);
  color: var(--gold);
  font-size: 13.5px;
  font-weight: 700;
  box-shadow: 0 6px 16px -8px rgba(49,114,240,.3);
  animation: orbit-counter 36s linear infinite;
}
@keyframes orbit-spin { to { transform: rotate(360deg); } }
@keyframes orbit-counter {
  from { transform: translate(-50%, -50%) rotate(calc(-1 * var(--angle))); }
  to   { transform: translate(-50%, -50%) rotate(calc(-1 * var(--angle) - 360deg)); }
}

@media (prefers-reduced-motion: reduce) {
  .orbit-ring, .orbit-pill { animation: none; }
}

/* ── Features ────────────────────────────────────────────────────── */
.features { padding: 90px 0; background: var(--bg-alt); border-top: 1px solid var(--border-soft); border-bottom: 1px solid var(--border-soft); }
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 20px;
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: transform .2s ease, border-color .2s ease;
}
.feature-card:hover { transform: translateY(-3px); border-color: var(--gold-soft); }
.feature-card svg { width: 26px; height: 26px; color: var(--gold); margin-bottom: 18px; }
.feature-card h3 { font-size: 16px; font-weight: 800; margin-bottom: 8px; }
.feature-card p { font-size: 13.5px; color: var(--text-muted); }

/* ── How it works ────────────────────────────────────────────────── */
.how { padding: 90px 0; }
.how-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 28px 32px;
  counter-reset: step;
}
.how-steps li {
  display: flex;
  gap: 16px;
}
.how-num {
  font-size: 13px;
  font-weight: 800;
  color: var(--gold);
  border: 1px solid var(--gold-soft);
  border-radius: 999px;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.how-steps h3 { font-size: 15px; font-weight: 800; margin-bottom: 4px; }
.how-steps p { font-size: 13.5px; color: var(--text-muted); }

/* ── Pricing ─────────────────────────────────────────────────────── */
.pricing { padding: 90px 0; background: var(--bg-alt); border-top: 1px solid var(--border-soft); border-bottom: 1px solid var(--border-soft); }
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 20px;
  margin-bottom: 28px;
}
.price-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  display: flex;
  flex-direction: column;
}
.price-card h3 { font-size: 15px; font-weight: 700; color: var(--text-muted); text-transform: uppercase; letter-spacing: .05em; margin-bottom: 14px; }
.price-card .price { font-size: 30px; font-weight: 900; margin-bottom: 2px; }
.price-card .price span { color: var(--text); }
.price-card .price-note { font-size: 12.5px; color: var(--text-faint); margin-bottom: 22px; }
.price-card ul { margin-bottom: 26px; flex: 1; }
.price-card li {
  font-size: 13.5px;
  color: var(--text-muted);
  padding: 8px 0;
  border-bottom: 1px solid var(--border-soft);
}
.price-card li:last-child { border-bottom: none; }
.price-card .btn { width: 100%; }

.price-card-highlight {
  border-color: var(--gold);
  background-color: var(--surface);
  background-image: var(--aurea-gradient-soft);
  box-shadow: var(--shadow-card);
}
.price-badge {
  position: absolute;
  top: -12px;
  left: 26px;
  background: var(--aurea-gradient);
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.pricing-note { font-size: 12.5px; color: var(--text-faint); text-align: center; }

/* ── Registrazione CTA ──────────────────────────────────────────────── */
.beta { padding: 100px 0; }
.beta-cta {
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.beta-cta h2 { margin-bottom: 14px; }
.beta-cta p { color: var(--text-muted); font-size: 15px; max-width: 440px; margin-bottom: 32px; }

/* ── Footer ──────────────────────────────────────────────────────── */
.site-footer { padding: 48px 0; border-top: 1px solid var(--border-soft); }
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-brand p { font-size: 12.5px; color: var(--text-faint); margin-top: 4px; }
.footer-links { display: flex; gap: 22px; }
.footer-links a { font-size: 13.5px; color: var(--text-muted); }
.footer-links a:hover { color: var(--text); }
.footer-copy { font-size: 12.5px; color: var(--text-faint); }

/* ── Responsive ──────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .features-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .pricing-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .how-steps { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .problem-list { grid-template-columns: 1fr; }
  .orbit-wrap { --orbit-size: 460px; --orbit-radius: 185px; }
  .orbit-pill { font-size: 12px; padding: 8px 14px; }
  .orbit-center { width: 92px; height: 92px; }
  .orbit-logo { width: 54px; height: auto; }
}

@media (max-width: 640px) {
  .nav-links, .nav-actions { display: none; }
  .nav-toggle { display: flex; }
  .nav.open .nav-links,
  .nav.open .nav-actions {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
  }
  .nav.open .nav-inner { flex-wrap: wrap; }
  .nav.open .nav-actions { padding-top: 12px; border-top: 1px solid var(--border-soft); margin-top: 12px; flex-direction: row; }

  .features-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .how-steps { grid-template-columns: 1fr; }
  .hero { padding: 90px 0 70px; background-size: cover; background-position: right center; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .orbit-wrap { --orbit-size: 320px; --orbit-radius: 128px; margin-top: 10px; }
  .orbit-pill { font-size: 10px; padding: 6px 10px; }
  .orbit-center { width: 70px; height: 70px; }
  .orbit-logo { width: 40px; height: auto; }
  .hero-cta .btn { width: 100%; }
}