/* Basic reset & theme */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; color: #0f172a; background: #ffffff; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(1100px, 92%); margin: 0 auto; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(6px); background: rgba(255,255,255,.85); border-bottom: 1px solid #e5e7eb; }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: .8rem 0; gap: 1rem; }
.brand { display: flex; align-items: center; gap: .6rem; font-weight: 700; }
.logo { width: 50px; height: 100%; border-radius: 999px; }
.brand-text { font-size: 1rem; }
.nav { display: flex; gap: 1rem; }
.nav a { font-size: .95rem; opacity: .9; }
.nav a:hover { text-decoration: underline; }
.cta-wrap { display: flex; align-items: center; gap: .5rem; }
.btn { border: 1px solid #e5e7eb; padding: .5rem .9rem; border-radius: 999px; font-weight: 600; background: #f8fafc; }
.btn:hover { background: #f1f5f9; }
.btn.primary { background: #facc15; border-color: #eab308; }
.btn.primary:hover { background: #eab308; }
.burger { display: none; border: 1px solid #e5e7eb; background: #fff; border-radius: 8px; padding: .45rem .6rem; }

/* Hero */
.hero { padding: 3rem 0 3.5rem; position: relative; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: -20% -10% auto -10%; height: 60%; background: radial-gradient(600px 300px at 80% 10%, rgba(250, 204, 21, .18), transparent 60%),
linear-gradient(180deg, rgba(2, 6, 23, .02), rgba(2, 6, 23, 0)); pointer-events: none; }
.hero-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 2rem; align-items: center; }
h1 { font-size: clamp(2rem, 4vw, 3rem); line-height: 1.1; margin: 0; }
.muted { color: #64748b; }
.badges { margin-top: .75rem; display: flex; flex-wrap: wrap; gap: .5rem 1rem; font-size: .9rem; }
.badge { display: inline-flex; align-items: center; gap: .4rem; }
.hero-cta { margin-top: 1.25rem; display: flex; flex-wrap: wrap; gap: .6rem; }
.hero-img { border-radius: 22px; box-shadow: 0 10px 30px rgba(2,6,23,.15); aspect-ratio: 7/3; object-fit: cover; }

/* Sections */
.section { padding: 3rem 0; }
.section h2 { text-align: center; font-size: clamp(1.6rem, 3vw, 2.2rem); margin: 0 0 .5rem; }
.section .sub { text-align: center; color: #64748b; margin-bottom: 1.2rem; }
.grid { display: grid; gap: 1rem; }
.grid.routes { grid-template-columns: repeat(3, 1fr); }
.grid.cards-4 { grid-template-columns: repeat(4, 1fr); }
.card { border: 1px solid #e5e7eb; border-radius: 18px; overflow: hidden; background: #fff; }
.card .body { padding: 1rem; }
.card-title { font-weight: 700; margin: .4rem 0; }
.card p { color: #475569; font-size: .95rem; }
.card .actions { display: flex; justify-content: space-between; align-items: center; margin-top: .6rem; }
.card .link { text-decoration: underline; font-size: .9rem; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 1rem; }
.form { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
.form input, .form textarea { width: 100%; border: 1px solid #e5e7eb; border-radius: 12px; padding: .7rem .8rem; font: inherit; }
.form textarea { grid-column: 1 / -1; min-height: 140px; }
.form .full { grid-column: 1 / -1; }
.alert { padding: .8rem 1rem; border-radius: 12px; background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; display: none; }

/* Footer */
.site-footer { border-top: 1px solid #e5e7eb; margin-top: 2rem; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 1rem; padding: 1.2rem 0; align-items: center; }
.credit { border-top: 1px solid #e5e7eb; padding: .8rem 0 1.5rem; text-align: right; font-size: .95rem; color: #64748b; }

/* Responsive */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .grid.routes { grid-template-columns: repeat(2, 1fr); }
  .grid.cards-4 { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; text-align: left; }
}
@media (max-width: 640px) {
  .nav { display: none; position: absolute; right: 1rem; top: 60px; background: #fff; border: 1px solid #e5e7eb; border-radius: 12px; padding: .6rem; flex-direction: column; min-width: 200px; }
  .nav.show { display: flex; }
  .burger { display: inline-block; }
  .grid.routes { grid-template-columns: 1fr; }
  .grid.cards-4 { grid-template-columns: 1fr; }
}