/**
 * Keyframes & loading / reveal utilities
 */

/* -------------------------------------------------------------------------- */
/* Loading screen                                                              */
/* -------------------------------------------------------------------------- */
#loading-screen {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: #050810;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

#loading-screen.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loading-video-wrap {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.loading-video-wrap video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
}

.loading-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 8, 16, 0.3) 0%, rgba(5, 8, 16, 0.92) 100%);
  pointer-events: none;
}

/* Logo giriş: halka + görsel (üst üste animasyonlar çakışmasın diye ayrı katmanlar) */
.loading-logo-wrap {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: loadingLogoWrapIn 1.05s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  opacity: 0;
}

@keyframes loadingLogoWrapIn {
  from {
    opacity: 0;
    transform: translateY(28px) scale(0.9);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.loading-logo-ring {
  position: absolute;
  width: min(260px, 68vw);
  height: min(260px, 68vw);
  max-width: 280px;
  max-height: 280px;
  border-radius: 50%;
  border: 2px solid rgba(56, 189, 248, 0.35);
  box-shadow:
    0 0 0 1px rgba(167, 139, 250, 0.12),
    0 0 48px rgba(56, 189, 248, 0.2);
  animation: loadingLogoRing 3.2s ease-in-out 0.3s infinite;
}

@keyframes loadingLogoRing {
  0%, 100% {
    transform: scale(1);
    opacity: 0.85;
  }
  50% {
    transform: scale(1.08);
    opacity: 1;
  }
}

.loading-logo {
  position: relative;
  z-index: 1;
  display: block;
  width: min(200px, 44vw);
  max-width: 240px;
  max-height: min(32vh, 260px);
  height: auto;
  object-fit: contain;
  animation: loadingLogoBreath 2.75s ease-in-out 0.45s infinite;
  filter: drop-shadow(0 12px 32px rgba(56, 189, 248, 0.42));
}

@keyframes loadingLogoBreath {
  0%, 100% {
    transform: scale(1);
    filter: drop-shadow(0 8px 26px rgba(56, 189, 248, 0.35));
  }
  50% {
    transform: scale(1.06);
    filter: drop-shadow(0 16px 40px rgba(167, 139, 250, 0.45));
  }
}

.loading-text {
  position: relative;
  z-index: 2;
  margin-top: 1.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.1rem, 3vw, 1.5rem);
  letter-spacing: 0.04em;
  text-align: center;
  background: linear-gradient(90deg, var(--text), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: loadingFadeUp 0.85s ease-out 0.4s forwards;
  opacity: 0;
}

.loading-sub {
  position: relative;
  z-index: 2;
  margin-top: 0.35rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  animation: loadingFadeUp 0.85s ease-out 0.55s forwards;
  opacity: 0;
}

@keyframes loadingFadeUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.skip-intro {
  position: relative;
  z-index: 2;
  margin-top: 2rem;
  padding: 0.6rem 1.2rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  background: rgba(148, 163, 184, 0.1);
  border: 1px solid var(--border-glass);
  border-radius: 999px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  animation: loadingFadeUp 0.85s ease-out 0.75s forwards;
  opacity: 0;
}

.skip-intro:hover {
  color: var(--text);
  background: rgba(148, 163, 184, 0.18);
}

/* -------------------------------------------------------------------------- */
/* Scroll reveal (used with animation.js)                                      */
/* -------------------------------------------------------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 0.7s var(--transition),
    transform 0.7s var(--transition);
}

[data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

[data-reveal="fade-left"] {
  transform: translateX(-24px);
}

[data-reveal="fade-left"].is-revealed {
  transform: none;
}

[data-reveal="fade-right"] {
  transform: translateX(24px);
}

[data-reveal="fade-right"].is-revealed {
  transform: none;
}

[data-reveal="zoom"] {
  transform: scale(0.96);
}

[data-reveal="zoom"].is-revealed {
  transform: none;
}

/* Stagger children */
.stagger-children > *:nth-child(1) { transition-delay: 0.05s; }
.stagger-children > *:nth-child(2) { transition-delay: 0.12s; }
.stagger-children > *:nth-child(3) { transition-delay: 0.19s; }
.stagger-children > *:nth-child(4) { transition-delay: 0.26s; }
.stagger-children > *:nth-child(5) { transition-delay: 0.33s; }
.stagger-children > *:nth-child(6) { transition-delay: 0.4s; }

/* -------------------------------------------------------------------------- */
/* Hero video background                                                       */
/* -------------------------------------------------------------------------- */
.hero-video-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
}

/* YouTube / iframe: tam alanı kaplayan 16:9 arka plan */
.hero-video-frame {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-video-bg iframe,
.hero-video-bg video {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100vw;
  height: 56.25vw; /* 16:9 */
  min-width: 177.78vh;
  min-height: 100vh;
  transform: translate(-50%, -50%) scale(1.05);
  border: 0;
}

.hero-video-bg video {
  object-fit: cover;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(120deg, rgba(7, 11, 18, 0.88) 0%, rgba(7, 11, 18, 0.55) 45%, rgba(15, 23, 42, 0.75) 100%),
    radial-gradient(ellipse 80% 60% at 70% 20%, rgba(56, 189, 248, 0.12), transparent);
  pointer-events: none;
}

/* subtle grain */
.hero-gradient::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.07;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  pointer-events: none;
}

/* -------------------------------------------------------------------------- */
/* Decorative orbs                                                             */
/* -------------------------------------------------------------------------- */
.glow-orb {
  position: absolute;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
  pointer-events: none;
  z-index: 0;
}

.glow-orb--cyan {
  background: var(--accent);
  top: -80px;
  right: -60px;
}

.glow-orb--violet {
  background: var(--accent-2);
  bottom: 10%;
  left: -100px;
}

.section--relative {
  position: relative;
  overflow: hidden;
}

.section--relative > .container {
  position: relative;
  z-index: 1;
}