:root {
  --bg: #0b0f14;
  --panel: #0f1520;
  --text: #e6edf3;
  --muted: #94a3b8;
  --brand: #4f46e5;
  --brand-2: #06b6d4;
  --border: #1f2937;
  --card: #0f172a;
  --success: #10b981;
}

@media (prefers-color-scheme: light) {
  :root { --bg: #ffffff; --panel: #f8fafc; --text: #0b1220; --muted: #4b5563; --border: #e5e7eb; --card: #ffffff; }
}

/* Layout */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(15, 23, 42, 0.6); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); }
@media (prefers-color-scheme: light) { .site-header { background: rgba(255,255,255,0.7); } }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); font-weight: 700; }
.logo-mark { display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 8px; background: linear-gradient(135deg, var(--brand), var(--brand-2)); color: white; font-weight: 800; }

.nav { display: flex; gap: 18px; align-items: center; }
.nav a { color: var(--text); text-decoration: none; font-weight: 500; opacity: 0.9; }
.nav a:hover { opacity: 1; }
.nav .cta { padding: 8px 14px; border: 1px solid var(--border); border-radius: 10px; }
.menu-toggle { display: none; background: none; border: 1px solid var(--border); color: var(--text); padding: 6px 10px; border-radius: 8px; }

@media (max-width: 820px) {
  .menu-toggle { display: inline-block; }
  .nav { position: absolute; right: 20px; top: 64px; background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 10px; display: none; flex-direction: column; min-width: 220px; }
  .nav.open { display: flex; }
}

/* Hero */
.hero { background: radial-gradient(1000px 400px at 20% -10%, rgba(79,70,229,.35), transparent), radial-gradient(900px 400px at 80% -20%, rgba(6,182,212,.25), transparent); border-bottom: 1px solid var(--border); }
.hero .container { padding: 72px 20px; text-align: center; }
.hero h1 { font-size: clamp(28px, 5vw, 44px); line-height: 1.15; margin: 0 0 12px; }
.lede { font-size: clamp(16px, 2.4vw, 20px); color: var(--muted); margin: 0 0 22px; }
.actions { display: flex; gap: 12px; justify-content: center; margin: 20px 0 12px; }
.trust { display: flex; gap: 18px; justify-content: center; list-style: none; padding: 0; margin: 16px 0 0; color: var(--muted); font-size: 14px; }

/* Sections */
.section { padding: 56px 0; }
.section.alt { background: var(--panel); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section h2 { font-size: clamp(22px, 3.5vw, 30px); margin: 0 0 18px; }

/* Cards */
.grid { display: grid; gap: 18px; }
.cards { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 920px) { .cards { grid-template-columns: 1fr 1fr; } }
@media (max-width: 620px) { .cards { grid-template-columns: 1fr; } }
.cards article { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 18px; }
.cards h3 { margin: 6px 0 8px; font-size: 18px; }
.cards p { margin: 0 0 8px; color: var(--muted); }
.cards ul { margin: 0; padding-left: 18px; color: var(--muted); }

/* Logos / Work */
.logos { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 720px) { .logos { grid-template-columns: 1fr 1fr; } }
.logo { display: grid; place-items: center; border: 1px dashed var(--border); border-radius: 12px; padding: 24px; color: var(--muted); }
.note { color: var(--muted); }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 10px; }
.stats div { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 14px; display: grid; justify-items: center; }
.stats strong { font-size: 22px; }
.stats span { color: var(--muted); font-size: 12px; }
@media (max-width: 720px) { .stats { grid-template-columns: 1fr; } }

/* Contact form */
.contact-form { display: grid; gap: 12px; }
.contact-form .row { display: grid; gap: 12px; grid-template-columns: 1fr 1fr; }
@media (max-width: 720px) { .contact-form .row { grid-template-columns: 1fr; } }
label { display: grid; gap: 6px; font-weight: 600; font-size: 14px; }
input, textarea { width: 100%; padding: 10px 12px; background: var(--panel); border: 1px solid var(--border); border-radius: 10px; color: var(--text); font: inherit; }
input::placeholder, textarea::placeholder { color: #7b8794; }

/* Buttons */
.btn { display: inline-block; text-decoration: none; border-radius: 10px; padding: 10px 14px; border: 1px solid var(--border); color: var(--text); font-weight: 600; }
.btn.primary { background: linear-gradient(135deg, var(--brand), var(--brand-2)); border: none; color: white; }
.btn.secondary { background: transparent; }
.btn:hover { filter: brightness(1.05); }

/* Footer */
.site-footer { border-top: 1px solid var(--border); background: var(--panel); }
.footer-inner { display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 14px; padding: 18px 0; }
.footer-nav { display: flex; gap: 14px; }
.footer-nav a { color: var(--muted); text-decoration: none; }
.legal { color: var(--muted); font-size: 12px; display: flex; align-items: center; gap: 10px; }
.brand { display: flex; align-items: center; gap: 10px; }
.theme-toggle { text-decoration: none; color: var(--muted); border: 1px solid var(--border); padding: 6px 10px; border-radius: 8px; }

@media (max-width: 820px) { .footer-inner { grid-template-columns: 1fr; justify-items: start; } }

/* Light/dark toggle via data-theme */
body[data-theme="light"] { --bg: #ffffff; --panel: #f8fafc; --text: #0b1220; --muted: #4b5563; --border: #e5e7eb; --card: #ffffff; }