/* TravelBuddy landing — design token ereditati da src/index.css dell'app */

:root {
  --primary: #0F766E;
  --primary-hover: #115E59;
  --primary-rgb: 15, 118, 110;
  --primary-fg: #FFFFFF;
  --pin-fill: #eee;
  --bg-color: #F9FAFB;
  --surface: #FFFFFF;
  --surface-hover: #F3F4F6;
  --text-main: #111827;
  --text-muted: #6B7280;
  --border: #E5E7EB;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text-main);
  background: var(--bg-color);
}

:root[data-color-mode='dark'] {
  --pin-fill: #333;
  --bg-color: #111827;
  --surface: #1F2937;
  --surface-hover: #374151;
  --text-main: #F9FAFB;
  --text-muted: #9CA3AF;
  --border: #374151;
  --primary: #14B8A6;
  --primary-hover: #2DD4BF;
  --primary-rgb: 20, 184, 166;
  --primary-fg: #042F2E;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.4);
}

/* Base */
* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

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

h1, h2, h3 { line-height: 1.2; margin: 0 0 0.5em; }
h1 { font-size: clamp(1.9rem, 4.5vw, 3rem); font-weight: 800; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); font-weight: 700; letter-spacing: -0.01em; }
h3 { font-size: 1.05rem; font-weight: 600; }
p { margin: 0 0 1em; }

.container { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

.section { padding: 64px 0; }
.section-alt { background: var(--surface); border-block: 1px solid var(--border); }
.section-sub { color: var(--text-muted); max-width: 62ch; margin-inline: auto; text-align: center; }
h2 + .section-sub { margin-bottom: 2.5rem; }

/* Link e focus */
a { color: var(--primary); }
a:focus-visible, button:focus-visible, select:focus-visible, input:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--primary);
  color: var(--primary-fg);
  padding: 10px 16px;
  border-radius: 0 0 var(--radius) 0;
  z-index: 100;
}
.skip-link:focus { left: 0; }

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* Pulsanti */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 10px 20px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.btn-primary { background: var(--primary); color: var(--primary-fg); }
.btn-primary:hover { background: var(--primary-hover); }
.btn-ghost {
  background: transparent;
  color: var(--text-main);
  border-color: var(--border);
}
.btn-ghost:hover { background: var(--surface-hover); }
.btn-light { background: #FFFFFF; color: #0F766E; }
.btn-light:hover { background: #F0FDFA; }
.btn-outline { background: rgba(255, 255, 255, 0.08); color: #FFFFFF; border-color: rgba(255, 255, 255, 0.6); }
.btn-outline:hover { background: rgba(255, 255, 255, 0.18); }
.btn-lg { padding: 14px 28px; font-size: 1.05rem; }
.btn-sm { padding: 8px 14px; font-size: 0.9rem; }

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px; height: 38px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-main);
  cursor: pointer;
  transition: background-color 0.15s ease;
}
.icon-btn:hover { background: var(--surface-hover); }
.icon-sun { display: none; }
.icon-moon { display: block; }
[data-color-mode='dark'] .icon-sun { display: block; }
[data-color-mode='dark'] .icon-moon { display: none; }

.text-link { color: var(--primary); font-weight: 600; text-decoration: none; }
.text-link:hover { text-decoration: underline; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg-color) 86%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  min-height: 64px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--primary);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.15rem;
}
.brand-name { color: var(--text-main); }
.site-nav { display: none; gap: 22px; margin-left: auto; }
.site-nav a { color: var(--text-main); text-decoration: none; font-weight: 500; }
.site-nav a:hover { color: var(--primary); }
.header-controls { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.site-nav + .header-controls { margin-left: 0; }

.lang-select {
  font: inherit;
  font-size: 0.9rem;
  color: var(--text-main);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 10px;
  cursor: pointer;
}
.header-controls .btn { display: none; }
.header-controls .icon-btn { display: inline-flex; }

/* Hero */
.hero { padding: 56px 0 72px; overflow: hidden; }
.hero-grid { display: grid; gap: 40px; align-items: center; }
.badge-row {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  margin: 0 0 20px;
}
.badge {
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
}
.lead { font-size: 1.15rem; color: var(--text-muted); max-width: 46ch; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.hero-shot { margin: 0; }
.browser-frame {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 12px;
  background: var(--surface-hover);
  border: 1px solid var(--border);
  border-bottom: none;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.browser-frame .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--border); flex-shrink: 0; }
.url-pill {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px 14px;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
}
.hero-shot img {
  border: 1px solid var(--border);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

/* Griglia funzioni */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow-sm);
}
.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border-radius: var(--radius);
  background: rgba(var(--primary-rgb), 0.1);
  color: var(--primary);
  margin-bottom: 14px;
}
.feature-card p { margin: 0; color: var(--text-muted); font-size: 0.95rem; }

/* Galleria */
#features h2, .themes-box h2 { text-align: center; }

/* Temi */
.themes-box { text-align: center; }
.theme-swatches {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  padding: 0;
  margin: 28px 0 0;
}
.swatch { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.swatch-dot {
  width: 44px; height: 44px;
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
  border: 3px solid var(--surface);
  outline: 1px solid var(--border);
}
.swatch-name { font-size: 0.85rem; color: var(--text-muted); }

/* Installa */
.install-grid {
  display: grid;
  gap: 40px;
  align-items: center;
}
.install-grid h2, .install-grid .section-sub { text-align: left; margin-inline: 0; }
.install-steps { list-style: none; padding: 0; margin: 24px 0; display: grid; gap: 16px; }
.install-steps li { display: flex; gap: 14px; align-items: flex-start; }
.step-icon {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: var(--radius);
  background: rgba(var(--primary-rgb), 0.1);
  color: var(--primary);
}
.install-or { color: var(--text-muted); }
.qr-card {
  justify-self: center;
  background: #FFFFFF; /* sempre chiaro: il QR deve restare scannabile */
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-lg);
  max-width: 300px;
  width: 100%;
}
.qr-card img { width: 100%; height: auto; border-radius: 8px; }

/* Registrati */
.register-band {
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: #FFFFFF;
}
[data-color-mode='dark'] .register-band {
  background: linear-gradient(135deg, #0D9488, #0F766E);
  color: #FFFFFF;
}
.register-band h2 { color: #FFFFFF; }
.register-band .section-sub { color: rgba(255, 255, 255, 0.85); text-align: left; margin-inline: 0; }
.register-grid { display: grid; gap: 36px; align-items: center; }
.benefits { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 12px; }
.benefits li { display: flex; gap: 12px; align-items: center; }
.benefit-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  flex-shrink: 0;
}
.register-actions { display: grid; gap: 14px; justify-items: start; }
.register-note { color: rgba(255, 255, 255, 0.75); font-size: 0.9rem; margin: 6px 0 0; max-width: 34ch; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  padding: 40px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: start;
}
.footer-brand p { color: var(--text-muted); margin: 12px 0 0; font-size: 0.95rem; }
.footer-license { font-size: 0.85rem; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-qr {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.8rem;
}
.footer-qr img {
  width: 72px; height: 72px;
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 4px;
}
.footer-bottom {
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Responsive */
@media (min-width: 640px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .header-controls .btn { display: inline-flex; }
}

@media (min-width: 900px) {
  .section { padding: 88px 0; }
  .hero { padding: 72px 0 96px; }
  .hero-grid { grid-template-columns: 5fr 6fr; gap: 56px; }
  .site-nav { display: flex; }
  .header-controls { margin-left: 0; }
  .header-inner { gap: 40px; }
  .feature-grid { grid-template-columns: repeat(4, 1fr); }
  .install-grid { grid-template-columns: 3fr 2fr; }
  .register-grid { grid-template-columns: 3fr 2fr; }
  .footer-grid { grid-template-columns: 2fr 1fr auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}