/* Lumina Digital — design system */
:root {
  --bg: #0a0e1a;
  --bg-2: #0e1424;
  --card: rgba(255, 255, 255, 0.045);
  --card-border: rgba(255, 255, 255, 0.09);
  --text: #e8ecf6;
  --text-dim: #9aa4bd;
  --grad: linear-gradient(120deg, #6366f1 0%, #22d3ee 55%, #a78bfa 100%);
  --accent: #22d3ee;
  --radius: 18px;
  --maxw: 1140px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
}
h1, h2, h3 { font-family: 'Sora', sans-serif; line-height: 1.15; }
a { color: var(--accent); text-decoration: none; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* background decoration */
.bg-decoration { position: fixed; inset: 0; z-index: -1; overflow: hidden; }
.blob { position: absolute; border-radius: 50%; filter: blur(90px); opacity: .35; }
.blob-1 { width: 480px; height: 480px; background: #4338ca; top: -140px; left: -120px; animation: float 14s ease-in-out infinite; }
.blob-2 { width: 420px; height: 420px; background: #0e7490; bottom: -120px; right: -100px; animation: float 18s ease-in-out infinite reverse; }
@keyframes float { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(40px,-30px) scale(1.08); } }
.grid-overlay {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 75%);
}

/* nav */
.nav { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(14px); background: rgba(10,14,26,.72); border-bottom: 1px solid var(--card-border); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding-top: 14px; padding-bottom: 14px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-logo { width: 30px; height: 30px; }
.brand-name { font-family: 'Sora', sans-serif; font-weight: 800; letter-spacing: -.02em; color: var(--text); }
.brand-name .accent { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.nav-links { display: flex; gap: 28px; }
.nav-links a { color: var(--text-dim); font-weight: 500; font-size: .95rem; transition: color .2s; }
.nav-links a:hover { color: var(--text); }

/* buttons */
.btn {
  display: inline-block; padding: 11px 22px; border-radius: 999px;
  font-family: 'Sora', sans-serif; font-weight: 600; font-size: .92rem;
  border: 1px solid transparent; cursor: pointer; transition: transform .18s, box-shadow .18s, background .18s;
}
.btn-primary { background: var(--grad); color: #0a0e1a; box-shadow: 0 6px 24px rgba(99,102,241,.35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 32px rgba(34,211,238,.4); }
.btn-ghost { border-color: var(--card-border); color: var(--text); background: rgba(255,255,255,.03); }
.btn-ghost:hover { border-color: rgba(255,255,255,.25); transform: translateY(-2px); }
.btn-lg { padding: 15px 32px; font-size: 1rem; }
.btn-block { display: block; width: 100%; text-align: center; }

/* hero */
.hero { padding: 96px 0 64px; text-align: center; }
.hero-eyebrow { display: inline-flex; align-items: center; gap: 8px; color: var(--text-dim); font-size: .85rem; letter-spacing: .04em; margin-bottom: 26px; background: var(--card); border: 1px solid var(--card-border); padding: 8px 18px; border-radius: 999px; }
.pulse-dot { width: 8px; height: 8px; border-radius: 50%; background: #34d399; box-shadow: 0 0 0 0 rgba(52,211,153,.6); animation: pulse 2s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 8px rgba(52,211,153,0); } 100% { box-shadow: 0 0 0 0 rgba(52,211,153,0); } }
.hero-title { font-size: clamp(2.4rem, 6vw, 4.3rem); font-weight: 800; letter-spacing: -.03em; margin-bottom: 24px; }
.gradient-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.caret { animation: blink 1s steps(1) infinite; color: var(--accent); font-weight: 300; }
@keyframes blink { 50% { opacity: 0; } }
.hero-sub { max-width: 620px; margin: 0 auto 38px; color: var(--text-dim); font-size: 1.1rem; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 72px; }
.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; max-width: 860px; margin: 0 auto; }
.stat { background: var(--card); border: 1px solid var(--card-border); border-radius: var(--radius); padding: 22px 12px; backdrop-filter: blur(8px); }
.stat-num { font-family: 'Sora', sans-serif; font-size: 2rem; font-weight: 800; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat-label { color: var(--text-dim); font-size: .85rem; margin-top: 4px; }

/* sections */
.section { padding: 96px 0; }
.section-alt { background: rgba(255,255,255,.02); border-block: 1px solid var(--card-border); }
.section-title { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 800; letter-spacing: -.02em; text-align: center; margin-bottom: 14px; }
.section-sub { text-align: center; color: var(--text-dim); margin-bottom: 52px; }

/* cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 22px; }
.card {
  background: var(--card); border: 1px solid var(--card-border); border-radius: var(--radius);
  padding: 30px 26px; transition: transform .2s, border-color .2s; backdrop-filter: blur(8px);
}
.card:hover { transform: translateY(-6px); border-color: rgba(34,211,238,.45); }
.card-icon { font-size: 2rem; margin-bottom: 16px; }
.card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.card p { color: var(--text-dim); font-size: .93rem; }

/* about */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.code-window { background: #0d1220; border: 1px solid var(--card-border); border-radius: var(--radius); overflow: hidden; box-shadow: 0 24px 60px rgba(0,0,0,.45); }
.code-bar { display: flex; align-items: center; gap: 7px; padding: 12px 16px; background: rgba(255,255,255,.04); border-bottom: 1px solid var(--card-border); }
.code-bar span { width: 11px; height: 11px; border-radius: 50%; background: #f87171; }
.code-bar span:nth-child(2) { background: #fbbf24; }
.code-bar span:nth-child(3) { background: #34d399; }
.code-bar em { margin-left: auto; color: var(--text-dim); font-style: normal; font-size: .8rem; font-family: 'Sora', sans-serif; }
.code-window pre { padding: 22px; font-size: .92rem; overflow-x: auto; }
.c-kw { color: #c084fc; } .c-var { color: #fbbf24; } .c-key { color: #22d3ee; }
.c-str { color: #a5f3a5; } .c-num { color: #f87171; } .c-fn { color: #93c5fd; }
.about-text .section-title { text-align: left; }
.about-text p { color: var(--text-dim); margin-bottom: 20px; }
.about-list { list-style: none; margin-bottom: 30px; display: grid; gap: 10px; color: var(--text-dim); }

/* contact */
.contact-wrap { max-width: 760px; }
.alert { padding: 14px 18px; border-radius: 12px; margin-bottom: 24px; font-size: .95rem; border: 1px solid; }
.alert-success { background: rgba(52,211,153,.12); border-color: rgba(52,211,153,.4); color: #a7f3d0; }
.alert-error { background: rgba(248,113,113,.12); border-color: rgba(248,113,113,.4); color: #fecaca; }
.contact-form { background: var(--card); border: 1px solid var(--card-border); border-radius: var(--radius); padding: 34px; backdrop-filter: blur(8px); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { margin-bottom: 18px; display: flex; flex-direction: column; gap: 8px; }
.form-group label { font-size: .88rem; color: var(--text-dim); font-weight: 600; }
.form-group input, .form-group textarea {
  background: rgba(255,255,255,.05); border: 1px solid var(--card-border); border-radius: 12px;
  padding: 13px 16px; color: var(--text); font-family: 'Inter', sans-serif; font-size: .95rem; resize: vertical;
  transition: border-color .2s, box-shadow .2s; outline: none;
}
.form-group input:focus, .form-group textarea:focus { border-color: rgba(34,211,238,.6); box-shadow: 0 0 0 4px rgba(34,211,238,.12); }
.form-group input::placeholder, .form-group textarea::placeholder { color: rgba(154,164,189,.45); }

/* footer */
.footer { border-top: 1px solid var(--card-border); padding: 34px 0; background: rgba(255,255,255,.02); }
.footer-inner { display: flex; flex-direction: column; align-items: center; gap: 12px; text-align: center; }
.footer-note { color: var(--text-dim); font-size: .88rem; }
.footer-links a { color: var(--text-dim); font-size: .88rem; }
.footer-links a:hover { color: var(--accent); }

/* reveal */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (max-width: 820px) {
  .nav-links, .nav-cta { display: none; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero { padding: 64px 0 48px; }
  .section { padding: 72px 0; }
}