/* ==========================================================================
   ASILGEN MÜHENDİSLİK — Hero Section CSS
   Full-viewport video arka plan, overlay, içerik katmanı
   ========================================================================== */

/* --------------------------------------------------------------------------
   Hero Section Kapsayıcı
   -------------------------------------------------------------------------- */
.hero-section {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  /* z-index ve isolation background.css'te tanımlı */
}

/* --------------------------------------------------------------------------
   Video Elementi — Tam Alan Kaplama
   -------------------------------------------------------------------------- */
.hero-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

/* Video yüklenemezse fallback arka plan rengi */
.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 50%, #0f0f0f 100%);
  z-index: 0;
}

/* --------------------------------------------------------------------------
   Video Overlay — Karartma Katmanı
   -------------------------------------------------------------------------- */
.hero-overlay {
  position: absolute;
  inset: 0;
  background: var(--color-hero-overlay);
  z-index: 2;
}

/* --------------------------------------------------------------------------
   Hero İçerik Katmanı — Alt Orta Hizalaması
   -------------------------------------------------------------------------- */
.hero-content {
  position: absolute;
  bottom: 18%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;

  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  width: min(90vw, 900px);
}

/* --------------------------------------------------------------------------
   Hero Başlık
   -------------------------------------------------------------------------- */
.hero-title {
  font-size: clamp(1.8rem, 3vw, 3rem);
  font-weight: 800;
  color: #ffffff;
  line-height: 1.15;
  letter-spacing: -0.01em;

  text-shadow:
    0 2px 20px rgba(0, 0, 0, 0.5),
    0 4px 40px rgba(0, 0, 0, 0.3);

  opacity: 0;
  transform: translateY(30px);
  animation: heroTitleIn 1s cubic-bezier(0.22, 1, 0.36, 1) 0.3s forwards;
}

/* --------------------------------------------------------------------------
   Hero Alt Başlık
   -------------------------------------------------------------------------- */
.hero-subtitle {
  font-size: clamp(0.9rem, 2vw, 1.15rem);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.8);
  margin-top: 1rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;

  opacity: 0;
  transform: translateY(20px);
  animation: heroTitleIn 0.8s cubic-bezier(0.22, 1, 0.36, 1) 0.6s forwards;
}

/* --------------------------------------------------------------------------
   CTA Butonu
   -------------------------------------------------------------------------- */
.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.75rem;
  padding: 14px 36px;
  background: #f5c518; /* Her temada sabit sarı */
  color: #0a0a0a; /* Siyah yazı okunabilirliği sağlar */
  font-family: 'Montserrat', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  border-radius: 8px;
  cursor: pointer;
  border: none;
  text-decoration: none;

  /* Geçiş efektleri */
  transition:
    transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1),
    box-shadow 0.2s ease,
    background-color 0.2s ease;

  opacity: 0;
  transform: translateY(20px);
  animation: heroCtaIn 0.8s cubic-bezier(0.22, 1, 0.36, 1) 0.9s forwards;
}

.hero-cta:hover {
  transform: scale(1.05) translateY(-2px);
  box-shadow:
    0 8px 24px rgba(245, 197, 24, 0.35),
    0 2px 8px rgba(245, 197, 24, 0.2);
  background: #ffd700;
}

.hero-cta:active {
  transform: scale(0.98);
}

/* CTA ikon */
.hero-cta svg {
  width: 16px;
  height: 16px;
  transition: transform 0.2s ease;
}

.hero-cta:hover svg {
  transform: translateX(3px);
}

/* --------------------------------------------------------------------------
   Scroll Göstergesi (animasyonlu ok)
   -------------------------------------------------------------------------- */
.hero-scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  opacity: 0;
  animation: fadeIn 1s ease 1.5s forwards;
}

.hero-scroll-indicator__text {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
  font-weight: 500;
}

.hero-scroll-indicator__arrow {
  width: 24px;
  height: 24px;
  color: rgba(255, 255, 255, 0.4);
  animation: arrowBounce 1.8s ease-in-out infinite;
}

/* --------------------------------------------------------------------------
   Keyframes
   -------------------------------------------------------------------------- */
@keyframes heroTitleIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes heroCtaIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes arrowBounce {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(6px); }
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  .hero-content {
    bottom: 15%;
    padding: 0 1rem;
  }

  .hero-cta {
    padding: 12px 28px;
    font-size: 0.88rem;
  }
}

@media (max-width: 480px) {
  .hero-content {
    bottom: 12%;
  }

  .hero-title {
    letter-spacing: -0.01em;
  }
}