* { box-sizing: border-box; }
:root { --brand: #f38020; --ink: #1f2328; --muted: #5b6370; --bg: #ffffff; --soft: #f6f7f9; --line: #e5e7eb; }
body { margin: 0; font: 16px/1.6 system-ui, -apple-system, "Segoe UI", sans-serif; color: var(--ink); background: var(--bg); }
img { max-width: 100%; display: block; }
a { color: inherit; }
.container { max-width: 1120px; margin: 0 auto; padding: 0 16px; }

/* Nav */
.nav { display: flex; align-items: center; justify-content: space-between; padding: 16px 0; }
.nav ul { display: flex; gap: 24px; list-style: none; margin: 0; padding: 0; }
.nav a { text-decoration: none; color: var(--muted); }
.btn { display: inline-block; padding: 12px 22px; border-radius: 10px; background: var(--brand); color: #fff !important; text-decoration: none; font-weight: 600; }
.btn.ghost { background: transparent; color: var(--ink) !important; border: 1px solid var(--line); }

/* Hero */
.hero { padding: 72px 0; }
.hero h1 { font-size: clamp(2rem, 5vw, 3.5rem); line-height: 1.1; margin: 0 0 16px; }
.hero p { font-size: 1.15rem; color: var(--muted); max-width: 560px; }
.hero .actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.hero.split { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; }
.hero.center { text-align: center; }
.hero.center p { margin: 0 auto; }
.hero.center .actions { justify-content: center; }
.mock { aspect-ratio: 4 / 3; border-radius: 20px; background: linear-gradient(135deg, #ffd7b0, var(--brand)); box-shadow: 0 20px 50px rgba(243,128,32,.25); }
.dark { background: #14161a; color: #f3f4f6; }
.dark .hero p, .dark .nav a { color: #a8afba; }
.dark .btn.ghost { color: #f3f4f6 !important; border-color: #343841; }

/* Sections */
section { padding: 64px 0; }
.soft { background: var(--soft); }
h2 { font-size: 2rem; margin: 0 0 32px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card { padding: 24px; border: 1px solid var(--line); border-radius: 14px; background: #fff; }
.card h3 { margin: 8px 0; }
.card p { margin: 0; color: var(--muted); }
.icon { width: 40px; height: 40px; border-radius: 10px; background: #fff1e5; color: var(--brand); display: grid; place-items: center; font-weight: 700; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; text-align: center; }
.stats b { display: block; font-size: 2.5rem; color: var(--brand); }
.cta { text-align: center; }
footer { padding: 32px 0; color: var(--muted); border-top: 1px solid var(--line); font-size: .9rem; }

/* Option picker (index.html) */
.picker { padding: 64px 0; }
.picker .card { display: block; text-decoration: none; }
.picker .card:hover { border-color: var(--brand); }

@media (max-width: 760px) {
  .nav ul { display: none; }
  .hero.split, .grid3, .stats { grid-template-columns: 1fr; }
  .hero { padding: 40px 0; }
}