@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* --- DESIGN SYSTEM CONSTANTS & THEMING --- */
:root {
    /* Default / Backup (Theme Platin) */
    --bg-primary: #e4e4e7;
    --bg-secondary: #f4f4f5;
    --bg-card: #ffffff;
    --text-primary: #18181b;
    --text-secondary: #52525b;
    --text-muted: #a1a1aa;
    --accent-color: #ef4444;
    --accent-glow: rgba(239, 68, 68, 0.18);
    --border-color: rgba(0, 0, 0, 0.08);
    --border-hover: rgba(239, 68, 68, 0.7);
    --font-family: 'Inter', sans-serif;
    --border-radius: 6px;
    --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    --grid-bg: radial-gradient(circle, rgba(239, 68, 68, 0.03) 1px, transparent 1px);
    --grid-size: 30px 30px;
    --sidebar-bg: #121214;
    --button-text: #ffffff;
    --bezel-color: #1e1e1e;
    
    --slider-arrow-bg: rgba(0, 0, 0, 0.05);
    --slider-arrow-border: rgba(0, 0, 0, 0.08);
    --slider-arrow-color: #18181b;
    --slider-dot-bg: rgba(0, 0, 0, 0.15);
}

/* Carbon Black Theme */
body.theme-carbon {
    --bg-primary: #07080a;
    --bg-secondary: #0f1115;
    --bg-card: #15181d;
    --text-primary: #f8f9fa;
    --text-secondary: #adb5bd;
    --text-muted: #495057;
    --accent-glow: rgba(239, 68, 68, 0.4);
    --border-color: rgba(239, 68, 68, 0.15);
    --box-shadow: 0 10px 35px rgba(0, 0, 0, 0.6);
    --grid-bg: radial-gradient(circle, rgba(239, 68, 68, 0.03) 1px, transparent 1px);
    --bezel-color: #1e1e1e;
    
    --slider-arrow-bg: rgba(255, 255, 255, 0.1);
    --slider-arrow-border: rgba(255, 255, 255, 0.15);
    --slider-arrow-color: #ffffff;
    --slider-dot-bg: rgba(255, 255, 255, 0.25);
}

/* Platin Grey Theme */
body.theme-platin {
    --bg-primary: #e4e4e7;
    --bg-secondary: #f4f4f5;
    --bg-card: #ffffff;
    --text-primary: #18181b;
    --text-secondary: #52525b;
    --text-muted: #a1a1aa;
    --accent-glow: rgba(239, 68, 68, 0.18);
    --border-color: rgba(0, 0, 0, 0.08);
    --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    --grid-bg: radial-gradient(circle, rgba(239, 68, 68, 0.03) 1px, transparent 1px);
    --bezel-color: #1e1e1e;
    
    --slider-arrow-bg: rgba(0, 0, 0, 0.05);
    --slider-arrow-border: rgba(0, 0, 0, 0.08);
    --slider-arrow-color: #18181b;
    --slider-dot-bg: rgba(0, 0, 0, 0.15);
}

/* Slate Navy Theme (Logo Bg) */
body.theme-slatenavy {
    --bg-primary: #1e293b;
    --bg-secondary: #0f172a;
    --bg-card: #1c2536;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #475569;
    --accent-glow: rgba(239, 68, 68, 0.35);
    --border-color: rgba(239, 68, 68, 0.2);
    --box-shadow: 0 10px 35px rgba(0, 0, 0, 0.5);
    --grid-bg: radial-gradient(circle, rgba(239, 68, 68, 0.04) 1px, transparent 1px);
    --bezel-color: #0f172a;
    
    --slider-arrow-bg: rgba(255, 255, 255, 0.08);
    --slider-arrow-border: rgba(255, 255, 255, 0.12);
    --slider-arrow-color: #ffffff;
    --slider-dot-bg: rgba(255, 255, 255, 0.2);
}

/* --- BASE STYLING --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: background-color 0.4s ease, border-color 0.4s ease, color 0.2s ease, border-radius 0.4s ease;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-family);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Background Grid Overlay */
body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: var(--grid-bg);
    background-size: var(--grid-size);
    z-index: -1;
    pointer-events: none;
    opacity: 0.8;
}

html {
    scroll-behavior: smooth;
}

/* --- NON-TRADITIONAL FLOATING SIDEBAR NAVIGATION --- */
.vertical-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 90px;
    height: 100vh;
    background: var(--sidebar-bg);
    backdrop-filter: blur(15px);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    padding: 2.5rem 0;
    z-index: 100;
}

.sidebar-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    text-decoration: none;
}

.sidebar-logo img {
    width: 60px;
    height: 60px;
    object-fit: contain;
    background: #1e293b;
    border-radius: 8px;
    padding: 2px;
    border: 1px solid var(--border-color);
}

.sidebar-logo span {
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    color: #ffffff; /* Keep sidebar logo text light on dark sidebar */
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.nav-dot-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: #94a3b8; /* Dark sidebar active color contrast */
    position: relative;
    cursor: pointer;
    gap: 0.35rem; /* İkon ve metin arası küçük boşluk */
}

.nav-dot-link svg {
    width: 26px; /* Büyütülmüş varsayılan ikon boyutu */
    height: 26px;
    transition: transform 0.2s ease, color 0.2s ease, filter 0.2s ease;
}

/* Fütüristik modern monospace yazı tasarımı (İkonun altında) */
.nav-dot-link span {
    font-family: monospace;
    font-size: 0.55rem;
    font-weight: 700;
    text-transform: uppercase;
    color: #94a3b8;
    letter-spacing: 0.08em;
    white-space: nowrap;
    opacity: 0;
    transform: translateY(4px);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: none;
}

/* Aktif sayfa yazısı menüde kalıcı ama hafif saydam durur, yandaki içeriği engellemez */
.nav-dot-link.active span {
    opacity: 0.75;
    transform: translateY(0);
    color: var(--accent-color);
}

/* Hover durumu: Yazı belirir, beyaz neon parlar */
.nav-dot-link:hover span {
    opacity: 1;
    transform: translateY(0);
    color: #ffffff;
    text-shadow: 0 0 6px rgba(255, 255, 255, 0.7);
}

/* Aktif ikona hover yapıldığında kendi rengiyle parlar */
.nav-dot-link.active:hover span {
    color: var(--accent-color);
    text-shadow: 0 0 6px var(--accent-glow);
}

.nav-dot-link:hover svg, .nav-dot-link.active svg {
    color: var(--accent-color);
    transform: scale(1.1);
    filter: drop-shadow(0 0 6px var(--accent-glow));
}

@media (max-width: 992px) {
    .nav-dot-link svg {
        width: 22px;
        height: 22px;
    }
    .nav-dot-link span {
        font-size: 0.5rem;
        letter-spacing: 0.05em;
    }
}

.sidebar-footer {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.sidebar-cta {
    background: var(--accent-color);
    color: var(--button-text);
    border: none;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 12px var(--accent-glow);
    transition: all 0.2s ease;
}

.sidebar-cta:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 16px var(--accent-glow);
}

/* --- MAIN CONTAINER --- */
main {
    margin-left: 90px;
    min-height: 100vh;
}

/* --- ROTATING PRODUCT SCREEN SLIDER --- */
.top-slider-container {
    position: relative;
    width: 100%;
    height: 520px;
    overflow: hidden;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.top-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    z-index: 1;
    transition: opacity 1s ease-in-out;
    display: grid;
    grid-template-columns: 1.1fr 1.9fr;
    align-items: center;
}

.top-slide.active {
    opacity: 1;
    z-index: 2;
}

/* Text Side: High contrast readable side panel */
.slide-text-side {
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 0 4rem;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    z-index: 4;
}

.slide-text-side span {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--accent-color);
    letter-spacing: 0.15em;
    display: block;
    margin-bottom: 0.75rem;
}

.slide-text-side h2 {
    font-size: 2.25rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 1.25rem;
    line-height: 1.15;
}

.slide-text-side p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Image Side: Full Opacity Bezel Screen representation */
.slide-image-side {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 4rem;
    position: relative;
}

/* Industrial screen bezel frame */
.industrial-bezel-frame {
    width: 100%;
    height: 100%;
    max-height: 380px;
    background: #0e1115;
    border: 14px solid var(--bezel-color);
    border-radius: 14px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.75),
                0 0 0 1px rgba(255, 255, 255, 0.05);
    overflow: hidden;
    position: relative;
}

.slide-bg {
    width: 100%;
    height: 100%;
    background-repeat: no-repeat;
    opacity: 1;
    transition: transform 6s ease-out;
}

.top-slide.active .slide-bg {
    transform: scale(1.03);
}

.slide-img-1 {
    background-image: url('URUN_RESIMLERI/81.jpg');
    background-size: cover;
    background-position: center;
}

.slide-img-2 {
    background-image: url('URUN_RESIMLERI/81.jpg');
    background-size: 160%;
    background-position: 10% 20%;
}

.slide-img-3 {
    background-image: url('URUN_RESIMLERI/81.jpg');
    background-size: 125%;
    background-position: bottom center;
}

/* Slider Controls */
.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--slider-arrow-bg);
    border: 1px solid var(--slider-arrow-border);
    color: var(--slider-arrow-color);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 5;
    transition: all 0.2s ease;
}

.slider-arrow:hover {
    background: var(--accent-color);
    color: var(--button-text);
    border-color: var(--accent-color);
    box-shadow: 0 0 15px var(--accent-glow);
}

.arrow-prev { left: calc(1.1fr - 22px); }
.arrow-next { right: 2rem; }

.slider-dots {
    position: absolute;
    bottom: 2rem;
    left: 4rem;
    display: flex;
    gap: 0.5rem;
    z-index: 5;
}

.slider-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--slider-dot-bg);
    cursor: pointer;
    transition: all 0.2s ease;
}

.slider-dot.active {
    background: var(--accent-color);
    width: 24px;
    border-radius: 4px;
}

/* --- HERO SPOTLIGHT SECTION --- */
.hero-spotlight {
    min-height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 6rem 4rem;
}

.spotlight-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    width: 100%;
    align-items: center;
}

.spotlight-text h1 {
    font-size: 3.5rem;
    line-height: 1.15;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 1rem;
}

.spotlight-text h1 span {
    color: var(--accent-color);
    text-shadow: 0 0 15px var(--accent-glow);
}

.hero-logo-banner {
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
}

.hero-brand-logo {
    height: 70px;
    object-fit: contain;
    filter: drop-shadow(0 0 15px rgba(239, 68, 68, 0.25));
}

.spotlight-tagline {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--accent-color);
    letter-spacing: 0.15em;
    margin-bottom: 1rem;
    display: block;
}

.spotlight-text p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 2.5rem;
}

/* Dynamic Interactive Feature Display Card (On the left) */
.feature-showcase-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--box-shadow);
    min-height: 180px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.feature-showcase-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--accent-color);
}

.feature-card-num {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-muted);
    opacity: 0.25;
}

.feature-showcase-card h3 {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.feature-showcase-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.55;
    margin-bottom: 0;
}

/* Immersive 3D-Like Device Schematic (On the right) */
.device-spotlight-visual {
    position: relative;
    width: 100%;
    height: 480px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Stylized Device drawing in pure CSS */
.stylized-device {
    width: 260px;
    height: 380px;
    background: linear-gradient(135deg, #181b22 0%, #0c0e12 100%);
    border: 3px solid #2a2e37;
    border-radius: 12px;
    position: relative;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.8), 
                inset 0 1px 0 rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 2rem;
}

/* Touchscreen Screen Area */
.device-screen {
    width: 100%;
    height: 140px;
    background: #020202;
    border: 2px solid #3d424e;
    border-radius: 6px;
    padding: 0.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    font-family: monospace;
    font-size: 0.65rem;
    position: relative;
    overflow: hidden;
}

.screen-grid-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%), 
                linear-gradient(90deg, rgba(255, 0, 0, 0.06), rgba(0, 255, 0, 0.02), rgba(0, 0, 255, 0.06));
    background-size: 100% 4px, 6px 100%;
    pointer-events: none;
}

.screen-temp-val {
    color: #22c55e;
    font-size: 1.2rem;
    font-weight: bold;
    text-shadow: 0 0 5px rgba(34, 197, 94, 0.5);
    text-align: center;
    margin-top: 1rem;
}

.screen-bottom-row {
    display: flex;
    justify-content: space-between;
    color: #888;
}

/* Industrial Outlets / Connector Area */
.device-ports {
    display: flex;
    justify-content: space-around;
    align-items: center;
    width: 100%;
    height: 60px;
    background: #101216;
    border: 2px solid #23272e;
    border-radius: 6px;
}

.port-connector {
    width: 28px;
    height: 28px;
    background: #252830;
    border: 2px dashed #495057;
    border-radius: 4px;
}

/* Hotspots overlay */
.hotspot-dot {
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--accent-color);
    border-radius: 50%;
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 0.7rem;
    font-weight: 700;
    box-shadow: 0 0 10px var(--accent-glow);
}

.hotspot-dot::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 2px solid var(--accent-color);
    animation: ping 1.8s cubic-bezier(0, 0, 0.2, 1) infinite;
    pointer-events: none;
}

.hotspot-dot:hover, .hotspot-dot.active {
    transform: scale(1.25);
    background: #ffffff;
    color: var(--accent-color);
    box-shadow: 0 0 20px var(--accent-color);
}

/* Hotspot placements */
.hspot-1 { top: 18%; right: 18%; }
.hspot-2 { top: 50%; left: 16%; }
.hspot-3 { bottom: 15%; right: 18%; }
.hspot-4 { top: 38%; right: 15%; }

/* --- SUBPAGE BANNER STYLING --- */
.page-header {
    padding: 5rem 4rem 2rem 4rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.page-header h1 {
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
}

.page-header p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 700px;
    line-height: 1.5;
}

/* --- PRODUCT SPECIFICATIONS GRID SECTION --- */
.specs-section {
    padding: 4rem;
}

.section-header {
    text-align: left;
    max-width: 600px;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.25rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.specs-container-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
}

.spec-column h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--accent-color);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.spec-item-list {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.spec-list-item h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.spec-list-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* --- DATASHEET DOWNLOAD SECTION --- */
.datasheet-section {
    padding: 2rem 4rem 6rem 4rem;
    border-top: 1px solid var(--border-color);
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.download-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    display: flex;
    gap: 1.5rem;
    align-items: center;
    box-shadow: var(--box-shadow);
}

.download-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-3px);
}

.doc-icon {
    width: 50px;
    height: 50px;
    border-radius: 8px;
    background: rgba(239, 68, 68, 0.1);
    color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.doc-info {
    flex-grow: 1;
}

.doc-info h4 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.doc-info span {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: monospace;
}

.btn-download {
    background: var(--accent-color);
    color: var(--button-text);
    border: none;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-download:hover {
    transform: scale(1.1);
    box-shadow: 0 0 10px var(--accent-glow);
}

/* --- VIDEO GALLERY SECTION --- */
.video-section-gallery {
    padding: 4rem;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.video-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.video-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
}

.video-thumbnail-container {
    position: relative;
    width: 100%;
    padding-top: 56.25%;
    background: #000;
    cursor: pointer;
    overflow: hidden;
}

.video-thumbnail-container .thumb-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('URUN_RESIMLERI/81.jpg');
    background-size: cover;
    background-position: center;
    filter: brightness(0.6) saturate(0.8);
    transition: all 0.4s ease;
}

.vid-2-thumb {
    background-position: top left !important;
}

.vid-3-thumb {
    background-position: bottom center !important;
}

.video-card:hover .thumb-img {
    transform: scale(1.05);
    filter: brightness(0.8) saturate(1);
}

.play-overlay-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(239, 68, 68, 0.9);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 20px rgba(239, 68, 68, 0.5);
    transition: all 0.3s ease;
}

.video-card:hover .play-overlay-btn {
    background: #ffffff;
    color: var(--accent-color);
    transform: translate(-50%, -50%) scale(1.1);
    box-shadow: 0 0 25px rgba(255, 255, 255, 0.4);
}

.play-overlay-btn svg {
    margin-left: 4px;
}

.video-details {
    padding: 1.5rem;
}

.video-details h4 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.video-details p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Lightbox/Modal */
.video-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.video-modal-content {
    position: relative;
    width: 100%;
    max-width: 800px;
    aspect-ratio: 16/9;
    background: #000;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.video-modal-close {
    position: absolute;
    top: -40px;
    right: 0;
    color: #ffffff;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.video-modal-close:hover {
    color: var(--accent-color);
}

/* --- IMMERSIVE CONTACT / INQUIRY SECTION --- */
.contact-fullscreen {
    padding: 6rem 4rem;
}

.inquiry-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
}

.inquiry-statement h2 {
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.15;
    margin-bottom: 1.5rem;
}

.inquiry-statement p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.6;
    margin-bottom: 3rem;
}

.direct-inquiry-box {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.direct-inquiry-box a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.direct-inquiry-box a svg {
    color: var(--accent-color);
}

.inquiry-form form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group-custom {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group-custom label {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-group-custom input, .form-group-custom textarea {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 1rem;
    border-radius: var(--border-radius);
    outline: none;
    font-family: inherit;
    font-size: 0.95rem;
}

.form-group-custom input:focus, .form-group-custom textarea:focus {
    border-color: var(--accent-color);
}

.btn-immersive-submit {
    background: var(--accent-color);
    color: var(--button-text);
    border: none;
    padding: 1.25rem;
    font-family: inherit;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    cursor: pointer;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 14px var(--accent-glow);
}

.btn-immersive-submit:hover {
    filter: brightness(1.1);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px var(--accent-glow);
}

/* --- FLOATING THEME SELECTOR WIDGET --- */
.floating-theme-customizer {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: rgba(18, 18, 20, 0.9);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 0.5rem 0.75rem;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    z-index: 999;
}

.floating-theme-customizer span {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    color: #a8a8a8;
    letter-spacing: 0.05em;
}

.color-option-btn {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.color-option-btn:hover {
    transform: scale(1.15);
}

.color-option-btn.active {
    border-color: #ef4444;
}

.btn-opt-carbon { background-color: #07080a; }
.btn-opt-platin { background-color: #e4e4e7; border: 1px solid #cbd5e1; }
.btn-opt-slatenavy { background-color: #1e293b; }

/* --- DEVICE CONFIGURATOR --- */
.configurator-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 2.5rem;
    padding: 3rem 4rem;
}

.config-form-pane {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.config-section-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--box-shadow);
}

.config-section-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.75rem;
    color: var(--text-primary);
}

/* Model cards selection */
.model-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.model-option-card {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.25rem;
    cursor: pointer;
    text-align: center;
    transition: all 0.3s ease;
    background: var(--bg-secondary);
}

.model-option-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.model-option-card.active {
    border-color: var(--accent-color);
    background: rgba(239, 68, 68, 0.05);
    box-shadow: 0 0 15px rgba(239, 68, 68, 0.15);
}

.model-option-card h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.model-option-card span {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Zone Range and inputs */
.zone-inputs-flex {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-top: 1rem;
}

.zone-range-slider {
    flex: 1;
    accent-color: var(--accent-color);
    height: 6px;
    border-radius: 3px;
    background: var(--border-color);
    outline: none;
}

.zone-num-input {
    width: 70px;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-primary);
    border-radius: var(--border-radius);
    text-align: center;
    font-weight: 700;
    outline: none;
}

.zone-num-input:focus {
    border-color: var(--accent-color);
}

/* Cable collapse animation */
.cable-collapse-wrapper {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: all 0.4s ease;
}

.cable-collapse-wrapper.show {
    max-height: 200px;
    opacity: 1;
    margin-top: 1.5rem;
}

/* Currency tab selector */
.currency-selector-tabs {
    display: flex;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 0.25rem;
    gap: 0.25rem;
    margin-top: 1rem;
}

.currency-tab-btn {
    flex: 1;
    background: transparent;
    border: none;
    padding: 0.75rem;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--border-radius);
    transition: all 0.2s ease;
}

.currency-tab-btn.active {
    background: var(--accent-color);
    color: var(--button-text);
}

/* Pricing summary pane */
.price-summary-pane {
    position: sticky;
    top: 2rem;
    align-self: start;
}

.price-summary-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 2.5rem 2rem;
    box-shadow: var(--box-shadow);
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
}

.summary-device-preview {
    text-align: center;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    border: 1px solid var(--border-color);
}

.preview-graphic {
    font-size: 3rem;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
    100% { transform: translateY(0px); }
}

.summary-title {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--text-primary);
}

.price-details-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1.25rem;
}

.price-details-row {
    display: flex;
    justify-content: space-between;
}

.price-details-row.total-row {
    border-top: 1.5px dashed var(--border-color);
    padding-top: 1.25rem;
    color: var(--text-primary);
    font-weight: 800;
}

.final-price-value {
    font-size: 2.2rem;
    color: var(--accent-color);
    text-shadow: 0 0 15px var(--accent-glow);
    display: block;
    margin-top: 0.25rem;
}

.kdv-warning {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
    display: block;
    margin-top: 0.25rem;
}

.btn-order-action {
    background: var(--accent-color);
    color: var(--button-text);
    border: none;
    padding: 1.25rem;
    border-radius: var(--border-radius);
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    box-shadow: 0 4px 14px var(--accent-glow);
    transition: all 0.3s ease;
    text-align: center;
    text-decoration: none;
}

.btn-order-action:hover {
    filter: brightness(1.1);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px var(--accent-glow);
}

.info-footnote {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
    line-height: 1.4;
}

/* --- FOOTER --- */
.immersive-footer {
    border-top: 1px solid var(--border-color);
    padding: 4rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-logo-wrap {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-logo-wrap img {
    height: 32px;
}

/* Responsive Styles */
@media (max-width: 992px) {
    .top-slide {
        grid-template-columns: 1fr;
        height: auto;
    }
    .slide-text-side {
        padding: 3rem 2rem;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    .slide-image-side {
        padding: 2rem;
        height: 320px;
    }
    .slider-arrow {
        top: calc(100% - 160px);
    }
    .arrow-prev {
        left: 2rem;
    }
    .slider-dots {
        left: 2rem;
        bottom: calc(100% - 100px);
    }
    .spotlight-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    .inquiry-split {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    .vertical-sidebar {
        width: 100%;
        height: 70px;
        flex-direction: row;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding: 0 2rem;
        justify-content: space-between;
    }
    .sidebar-logo {
        flex-direction: row;
        gap: 0.5rem;
    }
    .sidebar-logo span {
        display: none; /* Mobilde logo yazı etiketini gizle */
    }
    .sidebar-nav {
        flex-direction: row;
        gap: 1.5rem;
    }
    .sidebar-logo img {
        width: 38px;
        height: 38px;
    }
    main {
        margin-left: 0;
        margin-top: 70px;
    }
    
    /* Küçük ekranlı telefonlar için (iPhone SE / Galaxy S vb.) ultra-optimize sığdırma kuralları */
    @media (max-width: 576px) {
        .vertical-sidebar {
            padding: 0 1rem;
        }
        .sidebar-logo {
            display: none; /* Çok küçük ekranlarda logoyu tamamen gizleyip sadece 5 butonu gösterelim */
        }
        .sidebar-nav {
            width: 100%;
            justify-content: space-around;
            gap: 0;
        }
        .nav-dot-link span {
            display: none; /* Küçük ekranda alt yazıları gizle, sadece temiz parıldayan ikonlar kalsın */
        }
    }
    .hero-spotlight {
        padding: 4rem 2rem;
    }
    .specs-section {
        padding: 4rem 2rem;
    }
    .contact-fullscreen {
        padding: 4rem 2rem;
    }
    .immersive-footer {
        padding: 2rem;
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    .top-slider-container {
        height: auto;
    }
    .page-header {
        padding: 3rem 2rem 2rem 2rem;
    }
    .datasheet-section {
        padding: 2rem;
    }
    .video-section-gallery {
        padding: 2rem;
    }
    .configurator-grid {
        grid-template-columns: 1fr;
        padding: 2rem 1.5rem;
        gap: 2rem;
    }
    .model-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    .price-summary-pane {
        position: static;
    }
}