/* ===========================================================
   Sandeep Singh — Works Hub
   Modern dark · gradient blobs · glassmorphism · cursor glow
   =========================================================== */

:root {
  --bg: #070a12;
  --bg-2: #0b101c;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-2: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.09);
  --text: #eef2ff;
  --muted: #9aa7c7;
  --muted-2: #6f7d9e;
  --primary: #4c8bf5;
  --accent: #22d3ee;
  --pink: #ff6ec7;
  --radius: 18px;
  --maxw: 1080px;
  --font: 'Inter', system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
  --font-display: 'Space Grotesk', var(--font);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
::selection { background: rgba(76, 139, 255, 0.35); }

/* ---------- Background ---------- */
.bg { position: fixed; inset: 0; z-index: -2; overflow: hidden; background: linear-gradient(180deg, var(--bg), var(--bg-2)); }
.blob { position: absolute; border-radius: 50%; filter: blur(90px); opacity: 0.5; will-change: transform; }
.blob-a { width: 520px; height: 520px; top: -140px; left: -120px; background: radial-gradient(circle, rgba(76,139,255,0.55), transparent 70%); animation: drift 22s ease-in-out infinite; }
.blob-b { width: 460px; height: 460px; top: 30%; right: -160px; background: radial-gradient(circle, rgba(34,211,238,0.4), transparent 70%); animation: drift 26s ease-in-out infinite reverse; }
.blob-c { width: 540px; height: 540px; bottom: -180px; left: 30%; background: radial-gradient(circle, rgba(255,110,199,0.35), transparent 70%); animation: drift 30s ease-in-out infinite; }
@keyframes drift { 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(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 20%, transparent 80%);
}

/* ---------- Cursor glow & sparks ---------- */
.cursor-glow {
  position: fixed; top: 0; left: 0; width: 360px; height: 360px;
  border-radius: 50%; pointer-events: none; z-index: -1;
  background: radial-gradient(circle, rgba(76,139,255,0.16), transparent 65%);
  transform: translate(-50%, -50%);
  opacity: 0; transition: opacity 0.3s ease;
  mix-blend-mode: screen;
}
.cursor-glow.visible { opacity: 1; }
.spark-layer { position: fixed; inset: 0; pointer-events: none; z-index: 0; }
.spark {
  position: absolute; border-radius: 50%; pointer-events: none; background: var(--accent);
  box-shadow: 0 0 8px var(--accent); animation: sparkFly 0.7s ease-out forwards;
}
@keyframes sparkFly { to { transform: translate(var(--dx), var(--dy)) scale(0); opacity: 0; } }
@media (hover: none), (prefers-reduced-motion: reduce) { .cursor-glow, .spark-layer { display: none; } }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 24px;
  max-width: var(--maxw); margin: 0 auto; padding: 18px 24px;
  backdrop-filter: blur(12px); background: rgba(10,13,22,0.6);
}
.brand { font-family: var(--font-display); font-size: 1.25rem; font-weight: 700; letter-spacing: -0.02em; }
.brand strong { color: var(--primary); }
.main-nav { display: flex; gap: 26px; margin-left: auto; }
.main-nav a { color: var(--muted); font-size: 0.95rem; font-weight: 500; transition: color 0.2s; }
.main-nav a:hover { color: var(--text); }
.connect-btn {
  padding: 9px 18px; border-radius: 999px; font-size: 0.9rem; font-weight: 600;
  color: #fff; background: linear-gradient(135deg, var(--primary), #1f6feb);
  box-shadow: 0 8px 24px rgba(76,139,255,0.35);
  transition: transform 0.2s, box-shadow 0.2s;
}
.connect-btn:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(76,139,255,0.5); }

/* ---------- Hero ---------- */
.hero { max-width: var(--maxw); margin: 0 auto; padding: 100px 24px 40px; text-align: center; }
.eyebrow {
  display: inline-block; padding: 7px 14px; border-radius: 999px;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--accent); background: rgba(34,211,238,0.08);
  border: 1px solid rgba(34,211,238,0.2); margin-bottom: 26px;
}
.hero-title {
  font-family: var(--font-display); font-size: clamp(2.2rem, 6vw, 4.1rem);
  line-height: 1.06; font-weight: 700; letter-spacing: -0.03em;
  max-width: 820px; margin: 0 auto 22px;
}
.gradient-text {
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--pink));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { color: var(--muted); font-size: 1.08rem; max-width: 620px; margin: 0 auto 34px; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn { padding: 13px 26px; border-radius: 999px; font-weight: 600; font-size: 0.98rem; transition: transform 0.2s, box-shadow 0.2s, background 0.2s, border-color 0.2s; }
.btn-primary { color: #fff; background: linear-gradient(135deg, var(--primary), #1f6feb); box-shadow: 0 10px 28px rgba(76,139,255,0.4); }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 16px 36px rgba(76,139,255,0.55); }
.btn-ghost { color: var(--text); border: 1px solid var(--border); background: var(--surface); }
.btn-ghost:hover { border-color: rgba(255,255,255,0.25); background: var(--surface-2); transform: translateY(-3px); }
.stat-row { display: flex; gap: 0; justify-content: center; margin-top: 54px; flex-wrap: wrap; }
.stat { padding: 6px 26px; border-left: 1px solid var(--border); min-width: 130px; }
.stat:first-child { border-left: none; }
.stat .num { display: block; font-family: var(--font-display); font-size: 1.7rem; font-weight: 700; color: var(--text); }
.stat .label { color: var(--muted-2); font-size: 0.82rem; }

/* ---------- Works ---------- */
.works { max-width: var(--maxw); margin: 0 auto; padding: 70px 24px; }
.section-head { text-align: center; margin-bottom: 46px; }
.section-head h2 { font-family: var(--font-display); font-size: clamp(1.7rem, 4vw, 2.4rem); letter-spacing: -0.02em; margin: 10px 0 8px; }
.section-head p { color: var(--muted); }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 22px; }
.card {
  position: relative; display: flex; flex-direction: column;
  padding: 26px; gap: 14px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  backdrop-filter: blur(10px); overflow: hidden;
  transition: transform 0.25s ease, border-color 0.25s, box-shadow 0.25s; will-change: transform;
}
.card:hover { border-color: rgba(76,139,255,0.4); box-shadow: 0 20px 50px rgba(0,0,0,0.5); transform: translateY(-6px); }
.card-featured { background: linear-gradient(160deg, rgba(76,139,255,0.10), rgba(255,255,255,0.03)); }
.card-featured::after {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}
.card-top { display: flex; align-items: center; justify-content: space-between; }
.card-icon { font-size: 1.9rem; }
.card-tag {
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase;
  color: var(--accent); background: rgba(34,211,238,0.1);
  border: 1px solid rgba(34,211,238,0.25); padding: 4px 10px; border-radius: 999px;
}
.card h3 { font-family: var(--font-display); font-size: 1.35rem; }
.card-desc { color: var(--muted); font-size: 0.94rem; flex: 1; }
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { font-size: 0.78rem; color: var(--muted-2); background: var(--surface-2); border: 1px solid var(--border); padding: 4px 10px; border-radius: 999px; }
.card-link { margin-top: 8px; font-weight: 600; color: var(--primary); transition: color 0.2s, gap 0.2s; display: inline-flex; align-items: center; gap: 4px; }
.card-link:hover { color: var(--accent); gap: 8px; }

/* Spotlight following cursor within card (set via JS) */
.card .glow {
  position: absolute; width: 220px; height: 220px; border-radius: 50%;
  background: radial-gradient(circle, rgba(76,139,255,0.20), transparent 70%);
  pointer-events: none; opacity: 0; transition: opacity 0.2s; transform: translate(-50%,-50%); top: 0; left: 0;
}
.card:hover .glow { opacity: 1; }

/* ---------- CTA ---------- */
.cta { max-width: var(--maxw); margin: 0 auto; padding: 40px 24px 80px; text-align: center; }
.cta h2 { font-family: var(--font-display); font-size: clamp(1.6rem, 4vw, 2.3rem); letter-spacing: -0.02em; }
.cta p { color: var(--muted); margin: 12px auto 30px; max-width: 480px; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); padding: 30px 24px; text-align: center; color: var(--muted-2); font-size: 0.9rem; }
.site-footer .muted { color: var(--muted-2); }
.footer-links { display: flex; gap: 22px; justify-content: center; margin-top: 12px; flex-wrap: wrap; }
.footer-links a { color: var(--muted); transition: color 0.2s; }
.footer-links a:hover { color: var(--text); }

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  .main-nav { display: none; }
  .connect-btn { display: none; }
  .brand { margin-right: auto; }
  .stat-row { gap: 10px; }
  .stat { min-width: 0; width: 46%; padding: 10px 6px; border: 1px solid var(--border); border-radius: 14px; }
  .stat:first-child { border-left: 1px solid var(--border); }
  .hero { padding-top: 70px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .blob, .card, .btn, .connect-btn { animation: none !important; transition: none !important; }
}