/* ══════════════════════════════════════════════════
   KEYFRAME ANIMATIONS
   ══════════════════════════════════════════════════ */

/* ── Entrance: Fade + Rise ──────────────────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes fadeInScale {
  from { opacity: 0; transform: scale(0.95); }
  to   { opacity: 1; transform: scale(1); }
}

/* ── Hero text reveal ───────────────────────────── */
@keyframes heroReveal {
  from {
    opacity: 0;
    transform: translateY(40px);
    filter: blur(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
  }
}

.hero-reveal {
  animation: heroReveal 1s var(--ease-out) both;
}

.hero-reveal-1 { animation-delay: 1.2s; }
.hero-reveal-2 { animation-delay: 1.4s; }
.hero-reveal-3 { animation-delay: 1.6s; }
.hero-reveal-4 { animation-delay: 1.8s; }

/* ── Shimmer ────────────────────────────────────── */
@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position: 200% center; }
}

.shimmer-text {
  background: linear-gradient(
    90deg,
    var(--text-primary) 0%,
    var(--accent) 25%,
    var(--text-primary) 50%,
    var(--accent) 75%,
    var(--text-primary) 100%
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 4s linear infinite;
}

/* ── Float / Bob ────────────────────────────────── */
@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}

.float { animation: bob 4s ease-in-out infinite; }

/* ── Glow pulse ─────────────────────────────────── */
@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 20px var(--accent-glow); }
  50%      { box-shadow: 0 0 40px var(--accent-glow), 0 0 80px rgba(10, 132, 255, 0.1); }
}

.glow-pulse { animation: glowPulse 3s ease-in-out infinite; }

/* ── Spin (for loading) ─────────────────────────── */
@keyframes spin {
  to { transform: rotate(360deg); }
}

.spin { animation: spin 1s linear infinite; }

/* ── Stagger delays (for GSAP fallback) ─────────── */
.stagger-1 { transition-delay: 0.05s; }
.stagger-2 { transition-delay: 0.1s; }
.stagger-3 { transition-delay: 0.15s; }
.stagger-4 { transition-delay: 0.2s; }
.stagger-5 { transition-delay: 0.25s; }
.stagger-6 { transition-delay: 0.3s; }

/* ── Scroll-triggered reveal classes ────────────── */
.reveal-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity var(--dur-reveal) var(--ease-out),
              transform var(--dur-reveal) var(--ease-out);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity var(--dur-reveal) var(--ease-out),
              transform var(--dur-reveal) var(--ease-out);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity var(--dur-reveal) var(--ease-out),
              transform var(--dur-reveal) var(--ease-out);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity var(--dur-reveal) var(--ease-out),
              transform var(--dur-reveal) var(--ease-out);
}

.is-revealed {
  opacity: 1;
  transform: translate(0) scale(1);
}

/* ── Nav entrance ───────────────────────────────── */
@keyframes navSlide {
  from { transform: translateY(-100%); opacity: 0; }
  to   { transform: translateY(0); opacity: 1; }
}

.nav { animation: navSlide 0.6s var(--ease-out) 1.0s both; }

/* ══════════════════════════════════════════════════
   CURTAIN REVEAL
   ══════════════════════════════════════════════════ */
.curtain {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  pointer-events: none;
}

.curtain-left,
.curtain-right {
  width: 50%;
  height: 100%;
  background: linear-gradient(180deg,
    #1a0a0a 0%,
    #2d0f0f 30%,
    #7a2948 70%,
    #1a0a0a 100%
  );
  position: relative;
  transition: transform 1.2s cubic-bezier(0.65, 0, 0.35, 1);
}

.curtain-left::after,
.curtain-right::after {
  content: '';
  position: absolute;
  top: 0;
  width: 40px;
  height: 100%;
  background: repeating-linear-gradient(180deg,
    transparent 0px,
    rgba(212, 168, 83, 0.08) 2px,
    transparent 4px,
    transparent 20px
  );
}

.curtain-left::after { right: 0; }
.curtain-right::after { left: 0; }

.curtain-left::before,
.curtain-right::before {
  content: '';
  position: absolute;
  top: 0;
  width: 100%;
  height: 60px;
  background: linear-gradient(180deg,
    rgba(212, 168, 83, 0.3) 0%,
    rgba(122, 41, 72, 0.15) 50%,
    transparent 100%
  );
  z-index: 1;
}

.curtain.open .curtain-left {
  transform: translateX(-100%);
}

.curtain.open .curtain-right {
  transform: translateX(100%);
}

.curtain.done {
  display: none;
}

@media (prefers-reduced-motion: reduce) {
  .curtain { display: none; }
}