/* ============================================================
   Gen ex Gen — Components
   ============================================================ */

/* ── Nav ────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-height); display: flex; align-items: center;
  justify-content: space-between; padding: 0 var(--space-lg);
  background: transparent; transition: all var(--dur-normal) var(--ease-out);
}
.nav.scrolled {
  background: var(--bg-nav); backdrop-filter: saturate(180%) blur(24px);
  -webkit-backdrop-filter: saturate(180%) blur(24px);
  border-bottom: 1px solid var(--border);
}
.nav-logo { font-family: var(--font-cn); font-size: var(--text-body); font-weight: 600; letter-spacing: 0.04em; }
.nav-links { display: flex; align-items: center; gap: var(--space-lg); }
.nav-link { font-size: var(--text-caption); font-weight: 500; color: var(--text-secondary); transition: color var(--dur-fast); }
.nav-link:hover, .nav-link.active { color: var(--text-primary); }
@media (max-width:768px) { .nav { padding: 0 var(--space-md); } .nav-links { gap: var(--space-md); } }

/* ── Card ───────────────────────────────── */
.card {
  --tx:0deg; --ty:0deg; --gop:0; --gx:50%; --gy:50%;
  position: relative; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-xl); padding: var(--space-xl) var(--space-md) var(--space-lg);
  display: flex; flex-direction: column; align-items: center; text-align: center;
  gap: var(--space-sm); transform: perspective(1000px) rotateX(var(--tx)) rotateY(var(--ty));
  transform-style: preserve-3d;
  transition: border-color var(--dur-normal) var(--ease-out), box-shadow var(--dur-normal) var(--ease-out), transform 0.5s var(--ease-spring);
  cursor: none; overflow: hidden;
}
.card::before {
  content:''; position:absolute; inset:-1px; border-radius:inherit;
  background: radial-gradient(700px circle at var(--gx) var(--gy), var(--accent-glow), transparent 60%);
  opacity: var(--gop); transition: opacity var(--dur-normal) var(--ease-out); z-index:0; pointer-events:none;
}
.card:hover { border-color: var(--border-hover); box-shadow: var(--card-shadow), var(--card-glow); }
.card:hover::before { opacity: 1; }
.card-icon {
  position: relative; z-index:1; width: 60px; height: 60px; border-radius: var(--radius-md);
  background: rgba(255,255,255,0.05); display: flex; align-items: center; justify-content: center;
  font-size: 26px; color: var(--accent); margin-bottom: 4px;
  transition: transform var(--dur-normal) var(--ease-out);
}
.card:hover .card-icon { transform: scale(1.06); }
.card-title, .card-desc, .card-meta { position: relative; z-index: 1; }
.card .card-desc { max-width: 260px; line-height: 1.5; }

.card-download {
  position: relative; z-index: 1; display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 20px; margin-top: 12px; border-radius: 9999px;
  font-family: var(--font-cn); font-size: var(--text-caption); font-weight: 500;
  color: #fff; background: var(--accent); text-decoration: none;
  transition: all var(--dur-normal) var(--ease-out);
}
.card-download:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(94,168,218,0.35); }

/* ── Buttons ───────────────────────────── */
.btn {
  position: relative; z-index: 1; display: inline-flex; align-items: center;
  gap: 8px; padding: 10px 24px; border-radius: 9999px;
  font-family: var(--font-cn); font-size: var(--text-caption); font-weight: 500;
  letter-spacing: 0.02em; transition: all var(--dur-normal) var(--ease-out); cursor: none;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-light); box-shadow: 0 8px 32px rgba(94,168,218,0.3); transform: translateY(-1px); }
.btn-ghost { background: rgba(255,255,255,0.04); color: var(--text-primary); border: 1px solid var(--border); }
.btn-ghost:hover { background: rgba(255,255,255,0.08); border-color: var(--border-hover); transform: translateY(-1px); }
.btn-arrow { display: inline-block; transition: transform var(--dur-fast); }
.btn:hover .btn-arrow { transform: translateX(3px); }

/* ── Custom Cursor ─────────────────────── */
.cursor {
  position: fixed; width: 22px; height: 22px; border-radius: 50%;
  border: 1.5px solid rgba(255,255,255,0.4); pointer-events: none; z-index: 9999;
  transition: width var(--dur-fast), height var(--dur-fast), border-color var(--dur-fast);
  transform: translate(-50%, -50%);
}
.cursor-dot {
  position: fixed; width: 4px; height: 4px; border-radius: 50%;
  background: #fff; pointer-events: none; z-index: 9999;
  transform: translate(-50%, -50%);
}
.cursor.hover { width: 40px; height: 40px; border-color: var(--accent); mix-blend-mode: difference; }
@media (pointer:coarse) { .cursor, .cursor-dot { display:none; } }