/* ══ YENİ TAM EKRAN 4 SÜTUNLU VİDEO HERO ══ */
.video-hero-wrap {
  position: relative; width: 100vw; height: 100vh;
  overflow: hidden; background: #000;
}

/* BULANIK ARKA PLAN GÖRSELİ */
.hero-bg-image {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  background-position: center; background-size: cover; background-repeat: no-repeat;
  filter: blur(5px) brightness(0.8); transform: scale(1.1); z-index: 1;
}

/* 4 SÜTUNLU İSKELET YAPI */
.hero-grid-container {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  display: flex; flex-direction: row; justify-content: center; 
  align-items: center; 
  gap: 2vw; 
  padding: 0 4vw; 
  box-sizing: border-box; z-index: 5;
  padding-top: 5vh;
}

/* HER BİR SÜTUN */
.grid-col {
  flex: 1; 
  display: flex; align-items: center; justify-content: center;
  position: relative;
}

/* VİDEO TASARIMI VE 4 KENAR SAYDAMLIK MASKESİ */
.grid-video {
  width: 100%; 
  height: 74vh; 
  object-fit: cover; 
  border-radius: 40px; 
  box-shadow: 0 20px 50px rgba(0,0,0,0.6); 
  
  /* BAŞLANGIÇ DURUMU */
  opacity: 0; 
  transform: scale(0.88);
  filter: blur(15px) brightness(0.6);
  transition: all 0.9s cubic-bezier(0.25, 1, 0.5, 1);
  pointer-events: none;

  /* Webkit (Chrome, Safari, Edge) İçin Maskeleme */
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 12%, #000 88%, transparent),
                      linear-gradient(to right, transparent, #000 12%, #000 88%, transparent);
  -webkit-mask-composite: source-in;

  /* Standart (Firefox ve Modern Tarayıcılar) İçin Maskeleme - SARI HATAYI DÜZELTEN KISIM */
  mask-image: linear-gradient(to bottom, transparent, #000 12%, #000 88%, transparent),
              linear-gradient(to right, transparent, #000 12%, #000 88%, transparent);
  mask-composite: intersect;
  
  /* Performans Optimizasyonu (Sarı uyarıyı önlemek için sadece gerekli olanlar bırakıldı) */
  will-change: transform, opacity;
}

/* SIRA O VİDEOYA GELDİĞİNDE BELİRME EFEKTİ */
.grid-video.active {
  opacity: 1; 
  transform: scale(1);
  filter: blur(0px) brightness(1);
  pointer-events: auto;
}

/* MERKEZDEKİ LOGO EKRANI */
.video-hero-overlay {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity 1.5s ease-in-out; z-index: 10;
}

.video-hero-overlay.active { opacity: 1; }

.centered-logo {
  width: 350px; max-width: 80vw; height: auto;
  filter: drop-shadow(0 0 25px rgba(255, 255, 255, 0.2));
  transform: scale(0.85); transition: transform 2s cubic-bezier(0.19, 1, 0.22, 1);
}

.video-hero-overlay.active .centered-logo { transform: scale(1); }

/* ══ VİDEO GEÇİŞ KÜRELERİ (AŞAĞIDA, VİDEOLARA ASLA DEĞMEZ) ══ */
.hero-nav-dots {
  position: absolute;
  bottom: 5vh; 
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  z-index: 20;
  align-items: center;
}

.hero-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.35);
  cursor: pointer;
  transition: all 0.5s cubic-bezier(0.25, 1, 0.5, 1);
}

.hero-dot:hover {
  background: rgba(255, 255, 255, 0.9);
  transform: scale(1.2);
}

/* Aktif Olan Küre */
.hero-dot.active {
  width: 40px;
  background: var(--teal); 
  border-radius: 12px;
}

/* Son Küre (Logo) */
.hero-dot.logo-dot {
  background: rgba(231, 111, 81, 0.4);
}
.hero-dot.logo-dot.active {
  background: var(--coral);
  width: 40px;
}

/* SES BUTONU STİLİ */
.mute-btn {
  position: absolute; bottom: 4vh; right: 4vw; z-index: 20;
  background: rgba(0, 0, 0, 0.6); color: white;
  width: 45px; height: 45px; border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  cursor: pointer; font-size: 1.1rem;
  display: flex; align-items: center; justify-content: center;
  backdrop-filter: blur(8px); transition: all 0.3s; pointer-events: auto;
}
.mute-btn:hover {
  background: rgba(42, 157, 143, 0.9); border-color: rgba(42, 157, 143, 1); transform: scale(1.1);
}

/* ALT BAR */
.hero-bottom-bar {
  position: absolute; bottom: 0; left: 0; right: 0; z-index: 15;
  display: flex; justify-content: center; padding-bottom: 2vh; pointer-events: none;
}
.hero-scroll-ind { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.hs-label { font-family: 'Space Mono', monospace; font-size: .45rem; letter-spacing: .4em; color: rgba(255,255,255,.5); writing-mode: vertical-rl; }
.hs-line { width: 1px; height: 40px; background: linear-gradient(to bottom, var(--teal), transparent); animation: scLine 2.5s cubic-bezier(.65,0,.35,1) infinite; }
@keyframes scLine { 0% { transform: scaleY(0); opacity: 1; transform-origin: top; } 50% { transform: scaleY(1); opacity: 1; transform-origin: top; } 51% { transform-origin: bottom; } 100% { transform: scaleY(0); opacity: 0; transform-origin: bottom; } }

/* =========================================
   MOBİL UYUM (Responsive Design)
   ========================================= */
@media (max-width: 768px) {
  .hero-grid-container {
    display: block; 
    padding: 0;
  }
  .grid-col {
    position: absolute;
    top: 45%; left: 50%;
    transform: translate(-50%, -50%);
    width: 88%; 
    height: 62vh; 
  }
  .grid-video {
    height: 100%;
    border-radius: 25px; 
  }
  .hero-nav-dots {
    bottom: 6vh;
  }
}
/* TABLET VİDEO HERO */
@media (min-width: 769px) and (max-width: 1024px) {
  .hero-grid-container { gap: 1.5vw; padding: 0 2vw; }
  .grid-video { height: 68vh; border-radius: 28px; }
}

/* KÜÇÜK MOBİL VİDEO HERO */
@media (max-width: 480px) {
  .grid-col { width: 92%; height: 58vh; }
  .grid-video { border-radius: 20px; }
  .hero-bottom-bar { bottom: 12px; }
  .hero-nav-dots { bottom: 5vh; gap: 8px; }
  .hero-dot { width: 6px; height: 6px; }
  .mute-btn { bottom: 14px; right: 14px; width: 36px; height: 36px; }
}