/* ============================================
   THE CAPITAL — Split Velvet Curtain + Dynamic Light
   Vişne Çürüğü Kadife · God Rays · Real-time Render Light
   ============================================ */

:root {
    --black: #08080a;
    --velvet: #2d0610;
    --velvet-dark: #150308;
    --velvet-fold-dark: #120204;
    --velvet-fold-light: #3d0c18;
    --gold: #c9a34f;
    --gold-light: #f0d68a;
    --gold-gradient: linear-gradient(135deg, #c9a34f, #f0d68a, #c9a34f);
    --light-warm: #fff4e0;
    --light-warm-rgb: 255, 244, 224;
    --text-white: #f0ece4;
    --text-dim: rgba(240,236,228,0.5);
    --text-muted: rgba(240,236,228,0.2);
    --font-display: 'Cormorant Garamond', serif;
    --font-body: 'Inter', sans-serif;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { overflow-x: hidden; }
body {
    font-family: var(--font-body);
    background: var(--black);
    color: var(--text-white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ================= FIXED LAYERS ================= */
.fixed-layer {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100vh;
    pointer-events: none;
}

/* ---- Layer 0: Render ---- */
#render-layer { z-index: 1; overflow: hidden; will-change: opacity; }
.render-image {
    width: 100%; height: 100%;
    object-fit: cover;
    object-position: center 40%;
    transform-origin: center 40%;
    filter: brightness(0.3) saturate(0.6);
    will-change: transform, filter;
    background: linear-gradient(135deg, #1a2a3a, #2a4a5a 40%, #0a1a2a);
}

/* Dynamic light overlay — brightens where curtain gap is */
#render-light-overlay {
    position: absolute; inset: 0;
    background: radial-gradient(ellipse at 50% 50%, rgba(var(--light-warm-rgb), 0.0), transparent 20%);
    mix-blend-mode: screen;
    pointer-events: none;
    transition: none;
}

.render-vignette {
    position: absolute; inset: 0;
    background:
        radial-gradient(ellipse at 50% 45%, transparent 20%, rgba(8,8,10,0.5) 75%),
        linear-gradient(0deg, rgba(8,8,10,0.7) 0%, transparent 25%);
}

/* ---- Layer 0.5: Map ---- */
#map-layer { z-index: 0; overflow: hidden; opacity: 0; background: var(--black); will-change: opacity; }
.map-image {
    width: 100%; height: 100%;
    object-fit: contain;
    object-position: center center;
    filter: brightness(0.9) saturate(1.1);
    will-change: transform, filter;
}
.map-vignette {
    position: absolute; inset: 0;
    background:
        radial-gradient(ellipse at 50% 50%, transparent 30%, rgba(8,8,10,0.5) 75%),
        linear-gradient(0deg, rgba(8,8,10,0.5) 0%, transparent 15%),
        linear-gradient(180deg, rgba(8,8,10,0.5) 0%, transparent 15%);
    /* Edge blur via backdrop-filter mask trick */
    -webkit-mask-image: radial-gradient(ellipse at 50% 50%, transparent 35%, black 65%);
    mask-image: radial-gradient(ellipse at 50% 50%, transparent 35%, black 65%);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

/* ---- Layer 1: Light Beam ---- */
#light-layer { z-index: 8; overflow: hidden; }

#god-ray-container {
    position: absolute;
    top: 0; left: 50%; transform: translateX(-50%);
    width: 0; height: 100%;
    overflow: visible;
    opacity: 0;
}
.god-ray {
    position: absolute;
    top: -20%; left: 50%;
    height: 140%;
    background: linear-gradient(180deg,
        rgba(var(--light-warm-rgb), 0.08),
        rgba(var(--light-warm-rgb), 0.03) 40%,
        transparent 80%
    );
    transform-origin: top center;
    filter: blur(8px);
}
.god-ray-1 { width: 3px; transform: translateX(-50%) rotate(-6deg); }
.god-ray-2 { width: 5px; transform: translateX(-50%) rotate(-2deg); opacity: 0.7; }
.god-ray-3 { width: 8px; transform: translateX(-50%) rotate(0deg); opacity: 1; }
.god-ray-4 { width: 5px; transform: translateX(-50%) rotate(2deg); opacity: 0.7; }
.god-ray-5 { width: 3px; transform: translateX(-50%) rotate(6deg); }

#gap-glow {
    position: absolute;
    top: 0; left: 50%; transform: translateX(-50%);
    width: 0; height: 100%;
    background: radial-gradient(ellipse at 50% 40%,
        rgba(var(--light-warm-rgb), 0.15),
        rgba(var(--light-warm-rgb), 0.05) 40%,
        transparent 70%
    );
    opacity: 0;
    filter: blur(30px);
}

/* ---- Layers 2-3: Curtain Halves ---- */
.curtain-half { z-index: 10; overflow: hidden; will-change: clip-path, opacity; }
#curtain-left { clip-path: inset(0 50% 0 0); }
#curtain-right { clip-path: inset(0 0 0 50%); }

.curtain-fabric {
    position: absolute; inset: 0;
}

/* Base velvet color */
.fabric-base {
    position: absolute; inset: 0;
    background: var(--velvet);
}

/* Vertical fold shadows — deep kadife kıvrımları */
.fabric-folds {
    position: absolute; inset: 0;
    background:
        repeating-linear-gradient(90deg,
            var(--velvet-fold-dark) 0px,
            var(--velvet) 8px,
            var(--velvet-fold-light) 18px,
            var(--velvet) 28px,
            var(--velvet-fold-dark) 35px,
            var(--velvet) 50px,
            var(--velvet-fold-light) 58px,
            var(--velvet) 72px,
            var(--velvet-fold-dark) 80px,
            var(--velvet) 95px,
            var(--velvet-fold-light) 105px,
            var(--velvet) 120px
        ),
        /* Wider ambient folds */
        repeating-linear-gradient(90deg,
            rgba(0,0,0,0.15) 0px,
            transparent 30px,
            rgba(0,0,0,0.12) 80px,
            transparent 110px,
            rgba(0,0,0,0.18) 150px,
            transparent 180px
        );
    mix-blend-mode: multiply;
}

/* Thread texture */
.fabric-thread {
    position: absolute; inset: 0;
    background:
        repeating-linear-gradient(90deg, transparent, transparent 1.5px, rgba(0,0,0,0.05) 1.5px, rgba(0,0,0,0.05) 2.5px),
        repeating-linear-gradient(0deg, transparent, transparent 1px, rgba(0,0,0,0.025) 1px, rgba(0,0,0,0.025) 2px);
}

/* Curtain fabric inner edge wave — subtle ripple */
#curtain-left .curtain-fabric,
#curtain-right .curtain-fabric {
    animation: fabricBreath 8s ease-in-out infinite;
}
#curtain-right .curtain-fabric { animation-delay: -4s; }
@keyframes fabricBreath {
    0%, 100% { filter: brightness(1); }
    25% { filter: brightness(0.97); }
    50% { filter: brightness(1.02); }
    75% { filter: brightness(0.98); }
}

/* Fabric edge light — warm bounce light from gap */
.fabric-edge-light {
    position: absolute;
    top: 0; right: 0;
    width: 60px; height: 100%;
    background: linear-gradient(270deg,
        rgba(var(--light-warm-rgb), 0.08),
        rgba(var(--light-warm-rgb), 0.02) 40%,
        transparent 100%
    );
    opacity: 0;
}
.fabric-edge-light.right-edge {
    right: auto; left: 0;
    background: linear-gradient(90deg,
        rgba(var(--light-warm-rgb), 0.08),
        rgba(var(--light-warm-rgb), 0.02) 40%,
        transparent 100%
    );
}

/* ---- Layer 4: Hero Content ---- */
#content-layer {
    z-index: 20;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
}
.hero-icon { position: relative; margin-bottom: 28px; }
.capital-icon-img {
    width: clamp(70px, 12vw, 120px);
    height: auto;
    filter: drop-shadow(0 0 20px rgba(201,163,79,0.25)) brightness(1.15);
    animation: iconFloat 5s ease-in-out infinite;
}
@keyframes iconFloat {
    0%, 100% { transform: translateY(0); filter: drop-shadow(0 0 20px rgba(201,163,79,0.25)) brightness(1.15); }
    50% { transform: translateY(-6px); filter: drop-shadow(0 0 30px rgba(201,163,79,0.4)) brightness(1.25); }
}
.icon-glow {
    position: absolute; top: 50%; left: 50%;
    transform: translate(-50%,-50%);
    width: 160px; height: 160px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(201,163,79,0.08), transparent 65%);
    animation: glowPulse 4s ease-in-out infinite;
}
@keyframes glowPulse {
    0%, 100% { opacity: 0.5; transform: translate(-50%,-50%) scale(1); }
    50% { opacity: 1; transform: translate(-50%,-50%) scale(1.3); }
}

.hero-text { text-align: center; margin-bottom: 20px; }
.hero-text h1 { display: flex; flex-direction: column; gap: 4px; }
.line {
    display: block; font-family: var(--font-display);
    letter-spacing: 5px; text-transform: uppercase;
    opacity: 0; transform: translateY(25px);
}
.line-1 { font-size: clamp(16px, 3vw, 30px); font-weight: 300; color: var(--text-dim); }
.line-2 {
    font-size: clamp(28px, 5.5vw, 62px); font-weight: 500;
    background: var(--gold-gradient);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 20px rgba(201,163,79,0.12));
    letter-spacing: 3px;
}

.brand-logo { margin-bottom: 36px; opacity: 0; transform: translateY(15px); }
.ozay-logo-img {
    height: clamp(24px, 3.5vw, 40px); width: auto;
    opacity: 0.55; filter: brightness(1.4) grayscale(0.2);
}

.scroll-cue {
    position: absolute; bottom: 30px;
    display: flex; flex-direction: column; align-items: center; gap: 8px; opacity: 0;
    z-index: 5;
}
.scroll-cue span {
    font-family: var(--font-display);
    font-size: 13px;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--gold);
    opacity: 0.6;
}

/* Mouse scroll icon */
.mouse-icon {
    display: flex; align-items: center; justify-content: center;
}
.mouse-body {
    width: 22px; height: 36px;
    border: 1.5px solid rgba(201,163,79,0.5);
    border-radius: 11px;
    position: relative;
    display: flex; justify-content: center;
}
.mouse-wheel {
    width: 3px; height: 8px;
    background: var(--gold);
    border-radius: 2px;
    margin-top: 7px;
    opacity: 0.7;
    animation: wheelScroll 2s ease-in-out infinite;
}
@keyframes wheelScroll {
    0% { transform: translateY(0); opacity: 0.7; }
    50% { transform: translateY(10px); opacity: 0.1; }
    51% { transform: translateY(0); opacity: 0; }
    70% { opacity: 0.7; }
    100% { opacity: 0.7; }
}

/* ---- Layer 5: Zoom Text ---- */
#zoom-text-layer {
    z-index: 15; display: flex; align-items: center; justify-content: center; opacity: 0;
}
.zoom-title {
    text-align: center; display: flex; flex-direction: column; align-items: center; gap: 14px;
    position: relative;
    padding: 40px 60px;
}
/* Dark scrim behind logos for contrast */
.zoom-title::before {
    content: '';
    position: absolute;
    inset: -40px -80px;
    background: radial-gradient(ellipse at 50% 50%, rgba(0,0,0,0.45) 0%, rgba(0,0,0,0.2) 40%, transparent 70%);
    border-radius: 50%;
    z-index: -1;
    pointer-events: none;
}
.zoom-icon {
    width: clamp(48px, 8vw, 75px); height: auto;
    filter:
        drop-shadow(0 0 30px rgba(255,255,255,0.4))
        drop-shadow(0 0 60px rgba(255,255,255,0.15))
        drop-shadow(0 4px 20px rgba(0,0,0,0.6))
        brightness(1.7);
}
.zoom-name {
    height: clamp(40px, 8vw, 68px); width: auto;
    filter:
        drop-shadow(0 0 25px rgba(255,255,255,0.35))
        drop-shadow(0 0 50px rgba(255,255,255,0.12))
        drop-shadow(0 6px 25px rgba(0,0,0,0.65))
        brightness(1.5);
}
.zoom-sub {
    height: clamp(18px, 3vw, 28px); width: auto;
    opacity: 0.75;
    filter:
        drop-shadow(0 0 15px rgba(255,255,255,0.3))
        drop-shadow(0 0 40px rgba(255,255,255,0.1))
        drop-shadow(0 3px 15px rgba(0,0,0,0.5))
        brightness(1.7);
}

/* ================= SCROLL SPACER ================= */
#scroll-spacer { height: 620vh; position: relative; z-index: 0; pointer-events: none; }

/* ================= CONTENT ================= */
#content-section { position: relative; z-index: 30; background: var(--black); border-top: 1px solid rgba(201,163,79,0.06); }
.content-inner { max-width: 1100px; margin: 0 auto; padding: 50px 30px 40px; }
.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-bottom: 50px; }
.feature-card {
    background: rgba(255,255,255,0.015); border: 1px solid rgba(255,255,255,0.04);
    border-radius: 12px; padding: 24px 18px; text-align: center;
    transition: all 0.5s cubic-bezier(0.23,1,0.32,1);
}
.feature-card:hover { background: rgba(201,163,79,0.03); border-color: rgba(201,163,79,0.12); transform: translateY(-6px); }
.feature-icon {
    margin-bottom: 14px;
    color: var(--gold);
}
.feature-icon svg {
    width: 28px;
    height: 28px;
    stroke-width: 1.5;
}
.feature-card h3 { font-family: var(--font-display); font-size: 19px; font-weight: 500; margin-bottom: 8px; }
.feature-card p { font-size: 13px; line-height: 1.7; color: var(--text-dim); }

.cta-block { text-align: center; padding: 40px 0; display: flex; flex-direction: column; align-items: center; gap: 18px; }
.cta-logo { height: 24px; width: auto; opacity: 0.35; filter: brightness(1.5); }
.cta-block h2 { font-family: var(--font-display); font-size: clamp(22px, 3.5vw, 38px); font-weight: 400; letter-spacing: 2px; line-height: 1.1; }
.cta-address {
    font-family: var(--font-display);
    font-size: 14px;
    letter-spacing: 3px;
    color: var(--text-dim);
    margin-top: -8px;
}
.cta-phone {
    display: flex; flex-direction: column; align-items: center; gap: 4px;
    padding: 18px 50px; border: 1px solid rgba(201,163,79,0.35); border-radius: 4px;
    text-decoration: none; color: var(--gold); transition: all 0.4s; cursor: pointer;
}
.cta-phone:hover { background: rgba(201,163,79,0.06); border-color: rgba(201,163,79,0.6); box-shadow: 0 0 40px rgba(201,163,79,0.08); transform: scale(1.04); }
.cta-number { font-size: 24px; font-weight: 600; letter-spacing: 4px; }
.cta-label { font-size: 10px; letter-spacing: 3px; color: var(--text-muted); text-transform: uppercase; }
.cta-brand { font-size: 11px; letter-spacing: 3px; color: var(--text-muted); }

@media (max-width: 900px) { .features-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) {
    .features-grid { grid-template-columns: 1fr; gap: 14px; }
    .line-2 { letter-spacing: 1px; }
    .content-inner { padding: 50px 20px 40px; }
}

/* ---- Mobile Performance ---- */
@media (max-width: 768px) {
    .god-ray { filter: none !important; }
    #gap-glow { filter: blur(15px); }
    .map-vignette {
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
    }
    .fabric-thread { display: none; }
    #curtain-left .curtain-fabric,
    #curtain-right .curtain-fabric {
        animation: none !important;
    }
    .icon-glow { display: none; }
    #scroll-spacer { height: 500vh; }
    .scroll-cue { bottom: 90px; }
    .capital-icon-img { width: clamp(60px, 18vw, 90px); }

    /* Brighten curtain on mobile */
    .fabric-base { background: #4a1020; }
    .fabric-folds {
        background:
            repeating-linear-gradient(90deg,
                #2a0810 0px, #4a1020 12px, #5a1828 24px,
                #4a1020 36px, #2a0810 48px, #4a1020 64px,
                #5a1828 76px, #4a1020 88px
            ) !important;
    }

    /* Simplify zoom filters — single shadow only */
    .zoom-icon {
        filter: drop-shadow(0 2px 8px rgba(0,0,0,0.5)) brightness(1.8) !important;
    }
    .zoom-name {
        filter: drop-shadow(0 2px 8px rgba(0,0,0,0.5)) brightness(1.6) !important;
    }
    .zoom-sub {
        filter: drop-shadow(0 2px 6px rgba(0,0,0,0.4)) brightness(1.8) !important;
    }
    .zoom-title::before { display: none; }
}