/* ===== CSS Reset & Base ===== */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
:root {
  --bg: #0b0e14;
  --panel: #111625;
  --text: #e6e8ee;
  --muted: #a9afc3;
  --brand: #6c8cff;
  --brand-2: #9b8cff;
  --border: #23283a;
  --shadow: 0 10px 30px rgba(0,0,0,.25);
}
:root.light {
  --bg: #f8fafc;
  --panel: #ffffff;
  --text: #0b1020;
  --muted: #475569;
  --brand: #3b82f6;
  --brand-2: #8b5cf6;
  --border: #e2e8f0;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
img { max-width: 100%; display: block; border-radius: 16px; }
a { color: inherit; text-decoration: none; }
.container { width: min(1100px, 92%); margin-inline: auto; }
.section { padding: 96px 0; }
.section.alt { background: linear-gradient(180deg, transparent, rgba(255,255,255,0.03) 5%, transparent); }

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 16px;
  padding: 14px 5vw; background: rgba(17,22,37,.7); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.logo { font-weight: 800; letter-spacing: .5px; padding: 8px 12px; border: 1px solid var(--border); border-radius: 12px; }
.nav-toggle { display: none; background: transparent; border: 0; font-size: 22px; color: var(--text); }
.nav-menu { list-style: none; display: flex; gap: 20px; padding: 0; margin: 0; }
.nav-menu a { padding: 8px 10px; border-radius: 10px; }
.nav-menu a.active, .nav-menu a:hover { background: rgba(108,140,255,.12); }
.actions { display: flex; align-items: center; gap: 10px; }

/* ===== Buttons & UI ===== */
.btn { border: 1px solid var(--border); border-radius: 12px; padding: 10px 14px; cursor: pointer; background: var(--panel); color: var(--text); box-shadow: var(--shadow); }
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: linear-gradient(135deg, var(--brand), var(--brand-2)); border: none; color: white; }
.btn-ghost { background: transparent; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.chip { border: 1px solid var(--border); padding: 8px 12px; border-radius: 999px; background: var(--panel); }
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tags span { font-size: 12px; padding: 6px 10px; border: 1px solid var(--border); border-radius: 999px; }
.eyebrow { text-transform: uppercase; letter-spacing: .14em; color: var(--muted); font-size: 12px; margin: 0 0 8px; }
.subtitle { color: var(--muted); max-width: 60ch; }
.muted { color: var(--muted); }

/* ===== Hero ===== */
.hero { padding-top: 120px; }
.hero-inner { display: grid; grid-template-columns: 1.2fr .8fr; align-items: center; gap: 40px; }
.hero h1 { font-size: clamp(36px, 6vw, 56px); line-height: 1.05; margin: 0 0 12px; }
.hero-art { position: relative; }
.hero-art .blob { position: absolute; inset: -6% -12% auto auto; width: 70%; height: 70%; filter: blur(30px); border-radius: 50%; background: radial-gradient(circle at 30% 30%, var(--brand), transparent 60%), radial-gradient(circle at 70% 60%, var(--brand-2), transparent 55%); opacity: .5; z-index: -1; }
.cta-row { display: flex; gap: 12px; margin-top: 18px; }
.socials { display: flex; gap: 16px; list-style: none; padding: 0; margin: 18px 0 0; }

/* ===== Layouts ===== */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 18px; }
.card { border: 1px solid var(--border); border-radius: 18px; background: var(--panel); overflow: hidden; box-shadow: var(--shadow); display: flex; flex-direction: column; }
.card-body { padding: 16px; display: grid; gap: 10px; }
.card-actions { display: flex; gap: 10px; }

/* ===== Timeline ===== */
.timeline { position: relative; margin-top: 12px; }
.timeline::before { content: ""; position: absolute; left: 10px; top: 0; bottom: 0; width: 2px; background: var(--border); }
.tl-item { position: relative; padding-left: 40px; margin: 24px 0; }
.tl-dot { position: absolute; left: 2px; top: 6px; width: 16px; height: 16px; background: linear-gradient(135deg, var(--brand), var(--brand-2)); border-radius: 50%; box-shadow: var(--shadow); }
.tl-content h3 { margin: 0 0 6px; }

/* ===== Forms ===== */
.contact-form label { display: grid; gap: 6px; margin-bottom: 14px; }
input, textarea { width: 100%; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--border); background: var(--panel); color: var(--text); }
input:focus, textarea:focus { outline: 2px solid var(--brand); border-color: transparent; }
.form-actions { display: flex; align-items: center; gap: 12px; }

/* ===== Footer ===== */
.site-footer { border-top: 1px solid var(--border); padding: 30px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; }
.back-to-top { border: 1px solid var(--border); padding: 8px 10px; border-radius: 10px; }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .hero-inner, .grid-2 { grid-template-columns: 1fr; }
  .cards { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .site-header { grid-template-columns: auto auto auto; }
  .nav-toggle { display: block; }
  .nav-menu { position: absolute; top: 64px; right: 5vw; background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 10px; display: none; flex-direction: column; gap: 6px; min-width: 180px; box-shadow: var(--shadow); }
  .nav-menu.show { display: flex; }
  .cards { grid-template-columns: 1fr; }
}