/* ==========================================
   ANTEK YAPI - MODERN AÇIK TEMA (LIGHT SLATE & ELECTRIC BLUE)
   ========================================== */
:root {
    /* Ana Zemin ve Yüzey Renkleri */
    --bg-main: #F4F7FC;               /* Yumuşak Buz Mavisi / Açık Gri zemin */
    --bg-surface: #FFFFFF;            /* Net Beyaz Kartlar */
    --bg-glass-light: rgba(255, 255, 255, 0.82); /* Aydınlık Cam Efekti */
    --bg-glass-card: rgba(255, 255, 255, 0.75);  /* Hero Cam Kartları */
    
    /* Mavi ve Vurgu Renkleri */
    --primary-blue: #0284C7;          /* Canlı Çelik Mavi */
    --primary-blue-hover: #0369A1;    /* Koyu Mavi Hover */
    --accent-cyan: #00B4D8;           /* Açık Parlak Mavi */
    --gradient-blue: linear-gradient(135deg, #0284C7 0%, #2563EB 100%);
    
    /* Yazı ve Tipografi Renkleri */
    --text-heading: #0F172A;          /* Derin Slate Lacivert (Karakterli Başlıklar) */
    --text-body: #475569;             /* Yumuşak Gövde Metni Grisi */
    --text-muted: #64748B;            /* İkincil Silik Metin */
    --text-white: #FFFFFF;            /* Hero içi ve Buton Beyazları */
    
    /* Çizgiler ve Gölgeler */
    --border-light: rgba(226, 232, 240, 0.8);
    --border-blue-glow: rgba(2, 132, 199, 0.3);
    --shadow-sm: 0 4px 12px rgba(15, 23, 42, 0.03);
    --shadow-md: 0 10px 30px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 20px 40px rgba(2, 132, 199, 0.12);
    
    --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-main);
    color: var(--text-body);
    overflow-x: hidden;
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ==========================================
   1. TOP BAR (AÇIK KONSEPT)
   ========================================== */
.top-bar {
    background: #FFFFFF;
    border-bottom: 1px solid var(--border-light);
    padding: 10px 0;
    font-size: 13px;
    color: var(--text-muted);
}

.top-bar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-info {
    display: flex;
    gap: 25px;
    align-items: center;
}

.top-info a, .top-info span {
    display: flex;
    align-items: center;
    gap: 8px;
}

.top-info a:hover {
    color: var(--primary-blue);
}

.top-info i {
    color: var(--primary-blue);
}

.top-social {
    display: flex;
    gap: 12px;
}

.top-social a {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--bg-main);
    border: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-heading);
    font-size: 13px;
}

.top-social a:hover {
    background: var(--gradient-blue);
    color: var(--text-white);
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(2, 132, 199, 0.25);
}

/* ==========================================
   2. HEADER / NAVBAR (STICKY & LIGHT GLASS)
   ========================================== */
.main-header {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: var(--bg-glass-light);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 800;
    font-size: 26px;
    letter-spacing: 0.5px;
}

.logo-text {
    color: var(--text-heading);
}

.logo-badge {
    background: var(--gradient-blue);
    color: var(--text-white);
    padding: 3px 9px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 1px;
    box-shadow: 0 4px 12px rgba(2, 132, 199, 0.3);
}

/* Nav Menü */
.nav-menu > ul {
    display: flex;
    gap: 32px;
}

.nav-menu a {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-body);
    position: relative;
    padding: 8px 0;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-blue);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--gradient-blue);
    border-radius: 10px;
    transition: var(--transition);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

/* Dropdown */
.has-dropdown {
    position: relative;
}

.has-dropdown .dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    width: 260px;
    background: #FFFFFF;
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 12px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(15px);
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
}

.has-dropdown:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown li a {
    display: block;
    padding: 10px 22px;
    font-size: 14px;
    color: var(--text-body);
    font-weight: 500;
}

.dropdown li a:hover {
    color: var(--primary-blue);
    background: var(--bg-main);
    padding-left: 28px;
}

.dropdown li a::after {
    display: none;
}

/* Header Buttons */
.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 26px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
}

.btn-outline-cyan {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
    background: rgba(2, 132, 199, 0.06);
}

.btn-outline-cyan:hover {
    background: var(--gradient-blue);
    color: var(--text-white);
    border-color: transparent;
    box-shadow: 0 8px 20px rgba(2, 132, 199, 0.3);
    transform: translateY(-2px);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-heading);
    font-size: 24px;
    cursor: pointer;
}

/* ==========================================
   3. HERO VIDEO SLIDER SECTION (DİNAMİK VİDEO & AÇIK KATMAN)
   ========================================== */
.hero-slider {
    position: relative;
    min-height: calc(100vh - 120px);
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: 70px 0;
}

/* Video Arka Plan ve Yumuşak Mavi Katman */
.video-bg-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.video-bg-wrapper video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: opacity 0.8s ease-in-out;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Karartma yerine zengin Mavi-Slate Şeffaf Gradyan */
    background: linear-gradient(105deg, 
        rgba(15, 23, 42, 0.82) 0%, 
        rgba(30, 58, 138, 0.65) 50%, 
        rgba(15, 23, 42, 0.75) 100%);
}

.hero-container {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.25fr 0.75fr;
    gap: 40px;
    align-items: center;
}

/* Hero Sol Taraf Metinler */
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 7px 18px;
    border-radius: 30px;
    font-size: 13px;
    font-weight: 700;
    color: #00E5FF; /* Okunabilir parlak mavi */
    margin-bottom: 25px;
    letter-spacing: 0.8px;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: #00E5FF;
    border-radius: 50%;
    box-shadow: 0 0 10px #00E5FF;
    animation: pulse 1.8s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 229, 255, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 10px rgba(0, 229, 255, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 229, 255, 0); }
}

.hero-title {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
    letter-spacing: -1px;
    color: var(--text-white);
}

.text-gradient {
    background: linear-gradient(135deg, #FFFFFF 40%, #38BDF8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-description {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 35px;
    max-width: 580px;
    font-weight: 400;
}

.hero-buttons {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
}

.btn-primary-cyan {
    background: var(--gradient-blue);
    color: var(--text-white);
    font-weight: 700;
    box-shadow: 0 10px 25px rgba(2, 132, 199, 0.35);
}

.btn-primary-cyan:hover {
    background: #FFFFFF;
    color: var(--text-heading);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.4);
    transform: translateY(-2px);
}

.btn-glass {
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: var(--text-white);
    backdrop-filter: blur(12px);
}

.btn-glass:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

/* Hero Sağ Taraf (Cam Görünümlü Açık Kartlar) */
.hero-tabs {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.tab-card {
    position: relative;
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 16px 20px;
    background: var(--bg-glass-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 14px;
    cursor: pointer;
    transition: var(--transition);
    overflow: hidden;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.tab-card:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateX(-5px);
    box-shadow: 0 12px 30px rgba(2, 132, 199, 0.18);
}

.tab-card.active {
    background: #FFFFFF;
    border-color: var(--primary-blue);
    box-shadow: 0 15px 35px rgba(2, 132, 199, 0.25);
}

.tab-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 4px;
    width: 0%;
    background: var(--gradient-blue);
    border-radius: 0 4px 4px 0;
}

.tab-card.active .tab-progress {
    animation: progressAnim 7s linear forwards;
}

@keyframes progressAnim {
    0% { width: 0%; }
    100% { width: 100%; }
}

.tab-thumb {
    position: relative;
    width: 72px;
    height: 54px;
    border-radius: 10px;
    overflow: hidden;
    flex-shrink: 0;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}

.tab-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.tab-thumb i {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 11px;
    color: var(--text-white);
    background: var(--primary-blue);
    width: 26px;
    height: 26px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

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

.tab-info h3 {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-heading);
    margin-bottom: 2px;
}

.tab-info p {
    font-size: 12px;
    color: var(--text-body);
}

.tab-num {
    font-size: 16px;
    font-weight: 800;
    color: #CBD5E1;
}

.tab-card.active .tab-num {
    color: var(--primary-blue);
}

/* ==========================================
   MOBİL VE TABLET UYUMU
   ========================================== */
@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
    }
    .hero-title {
        font-size: 38px;
    }
    .nav-menu {
        display: none;
    }
    .mobile-toggle {
        display: block;
    }
}

/* ==========================================
   4. FLOATING STATS BAR (YÜZEN BANT TASARIMI)
   ========================================== */
.floating-stats-wrapper {
    position: relative;
    z-index: 20;
    margin-top: -55px; /* Hero / Video alanının üzerine yükselip taşma sağlar */
    padding-bottom: 40px;
}

.floating-stats-card {
    background: #FFFFFF;
    border-radius: 24px;
    padding: 24px 36px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 20px 50px rgba(15, 23, 42, 0.08);
    border: 1px solid rgba(226, 232, 240, 0.9);
    transition: var(--transition);
}

.floating-stats-card:hover {
    box-shadow: 0 25px 60px rgba(2, 132, 199, 0.12);
    border-color: rgba(2, 132, 199, 0.3);
}

/* İstatistik Öğe Yapısı */
.f-stat-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 6px 12px;
    border-radius: 14px;
    transition: var(--transition);
}

.f-stat-item:hover {
    background: rgba(2, 132, 199, 0.03);
    transform: translateY(-2px);
}

/* Yumuşak Mavi İkon Kutusu */
.f-stat-icon {
    width: 52px;
    height: 52px;
    border-radius: 16px;
    background: #EFF6FF; /* Yumuşak Açık Mavi */
    color: var(--primary-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
    transition: var(--transition);
}

.highlight-icon {
    background: var(--gradient-blue);
    color: #FFFFFF;
    box-shadow: 0 6px 16px rgba(2, 132, 199, 0.3);
}

.f-stat-item:hover .f-stat-icon:not(.highlight-icon) {
    background: var(--primary-blue);
    color: #FFFFFF;
    box-shadow: 0 6px 16px rgba(2, 132, 199, 0.25);
}

/* Sayı ve Başlıklar */
.f-stat-info {
    display: flex;
    flex-direction: column;
}

.f-stat-number {
    font-size: 26px;
    font-weight: 800;
    color: var(--text-heading);
    line-height: 1.1;
    letter-spacing: -0.5px;
}

.f-stat-number .unit {
    color: var(--primary-blue);
}

.f-stat-number.text-blue {
    color: var(--primary-blue);
}

.f-stat-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    margin-top: 3px;
    white-space: nowrap;
}

/* Dikey İnce Ayraç Çizgileri */
.f-stat-divider {
    width: 1px;
    height: 38px;
    background: #E2E8F0;
    flex-shrink: 0;
}

/* RESPONSIVE TASARIM */
@media (max-width: 1200px) {
    .floating-stats-card {
        padding: 20px 24px;
    }
    .f-stat-item {
        gap: 12px;
    }
    .f-stat-number {
        font-size: 22px;
    }
    .f-stat-label {
        font-size: 12px;
    }
}

@media (max-width: 992px) {
    .floating-stats-card {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
    .f-stat-divider {
        display: none; /* Mobilde ve tablette dikey çizgileri gizle */
    }
}

@media (max-width: 640px) {
    .floating-stats-wrapper {
        margin-top: -30px;
    }
    .floating-stats-card {
        grid-template-columns: repeat(2, 1fr);
        padding: 18px 16px;
    }
}

/* ==========================================
   5. ADVANCED ULTRA-PREMIUM SERVICES
   ========================================== */
.services-advanced-section {
    padding: 120px 0;
    background: linear-gradient(180deg, #F8FAFC 0%, #FFFFFF 100%);
    position: relative;
}

/* Header & Filters Layout */
.services-top-bar {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 50px;
    flex-wrap: wrap;
    gap: 24px;
}

.sub-badge-glow {
    display: inline-block;
    font-size: 12px;
    font-weight: 800;
    color: var(--primary-blue);
    letter-spacing: 2px;
    margin-bottom: 12px;
    background: rgba(2, 132, 199, 0.08);
    padding: 6px 16px;
    border-radius: 30px;
    border: 1px solid rgba(2, 132, 199, 0.15);
}

.services-title-box h2 {
    font-size: 38px;
    font-weight: 800;
    color: var(--text-heading);
    line-height: 1.2;
    letter-spacing: -0.5px;
}

/* İnteraktif Filtre Tab'ları */
.service-filters {
    display: flex;
    gap: 8px;
    background: #F1F5F9;
    padding: 6px;
    border-radius: 40px;
    border: 1px solid #E2E8F0;
}

.filter-btn {
    border: none;
    background: transparent;
    padding: 10px 22px;
    font-size: 14px;
    font-weight: 700;
    color: var(--text-muted);
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.filter-btn:hover {
    color: var(--text-heading);
}

.filter-btn.active {
    background: #FFFFFF;
    color: var(--primary-blue);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
}

/* Grid Yapısı */
.services-adv-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

/* Premium Kart Tasarımı */
.service-adv-card {
    background: #FFFFFF;
    border-radius: 24px;
    border: 1px solid #E2E8F0;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.04);
    display: flex;
    flex-direction: column;
    position: relative;
}

.service-adv-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 50px rgba(2, 132, 199, 0.15);
    border-color: rgba(2, 132, 199, 0.3);
}

/* Görsel Kutusu & Efektler */
.service-adv-img-box {
    position: relative;
    width: 100%;
    height: 230px;
    overflow: hidden;
}

.service-adv-img-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.service-adv-card:hover .service-adv-img-box img {
    transform: scale(1.08);
}

/* Shimmer (Işık Geçişi) Animasyonu */
.card-shimmer {
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: all 0.6s ease;
    z-index: 2;
}

.service-adv-card:hover .card-shimmer {
    left: 100%;
}

/* Cam Efektli Rozetler (Glassmorphism) */
.adv-category-pill {
    position: absolute;
    top: 16px;
    left: 16px;
    background: rgba(15, 23, 42, 0.65);
    backdrop-filter: blur(8px);
    color: #FFFFFF;
    font-size: 11px;
    font-weight: 800;
    padding: 6px 14px;
    border-radius: 20px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.adv-spec-pills {
    position: absolute;
    bottom: 16px;
    left: 16px;
    display: flex;
    gap: 8px;
    z-index: 3;
}

.adv-spec-pills span {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    color: var(--text-heading);
    font-size: 12px;
    font-weight: 700;
    padding: 5px 12px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.adv-spec-pills i {
    color: var(--primary-blue);
}

/* Kart İçeriği */
.service-adv-body {
    padding: 30px 28px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.service-adv-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.service-adv-num {
    font-size: 14px;
    font-weight: 800;
    color: var(--primary-blue);
    background: rgba(2, 132, 199, 0.08);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.service-adv-header h3 {
    font-size: 20px;
    font-weight: 800;
    color: var(--text-heading);
    line-height: 1.3;
}

.service-adv-body p {
    font-size: 14px;
    color: var(--text-body);
    line-height: 1.6;
    margin-bottom: 20px;
}

/* Özellik Listesi */
.service-spec-list {
    list-style: none;
    padding: 0;
    margin: 0 0 24px 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
    border-top: 1px dashed #E2E8F0;
    padding-top: 18px;
}

.service-spec-list li {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-heading);
    display: flex;
    align-items: center;
    gap: 10px;
}

.service-spec-list i {
    color: #10B981; /* Yeşil check ikonu */
    font-size: 14px;
}

/* CTA Butonu */
.service-adv-footer {
    margin-top: auto;
}

.adv-cta-btn {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 12px 18px;
    background: #F8FAFC;
    border: 1px solid #E2E8F0;
    border-radius: 14px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 700;
    color: var(--text-heading);
    transition: all 0.3s ease;
}

.btn-arrow-icon {
    width: 32px;
    height: 32px;
    border-radius: 10px;
    background: #FFFFFF;
    color: var(--primary-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.service-adv-card:hover .adv-cta-btn {
    background: var(--gradient-blue);
    color: #FFFFFF;
    border-color: transparent;
}

.service-adv-card:hover .btn-arrow-icon {
    background: rgba(255, 255, 255, 0.2);
    color: #FFFFFF;
    transform: translateX(4px);
}

/* RESPONSIVE */
@media (max-width: 1100px) {
    .services-adv-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .services-top-bar {
        flex-direction: column;
        align-items: flex-start;
    }
    .service-filters {
        width: 100%;
        overflow-x: auto;
        padding: 4px;
    }
    .filter-btn {
        white-space: nowrap;
        padding: 8px 16px;
        font-size: 13px;
    }
    .services-adv-grid {
        grid-template-columns: 1fr;
    }
}

/* ==========================================
   7. ULTRA-PREMIUM INTERACTIVE SHOWCASE (ICE BLUE THEME)
   ========================================== */
.showcase-section {
    padding: 120px 0;
    /* Buz mavisi ve soft gradyan zemin */
    background: linear-gradient(180deg, #F0F9FF 0%, #E0F2FE 50%, #F8FAFC 100%);
    color: #0F172A;
    position: relative;
    overflow: hidden;
}

/* Izgara Deseninde Yumuşak Buz Mavisi Parlama */
.showcase-section::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image: radial-gradient(rgba(2, 132, 199, 0.15) 1.5px, transparent 1.5px);
    background-size: 36px 36px;
    pointer-events: none;
}

/* Section Header */
.showcase-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 50px;
    gap: 30px;
    flex-wrap: wrap;
}

.cyber-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    font-weight: 800;
    color: #0284C7;
    background: #FFFFFF;
    border: 1px solid #BAE6FD;
    padding: 6px 16px;
    border-radius: 30px;
    letter-spacing: 2px;
    margin-bottom: 14px;
    box-shadow: 0 4px 12px rgba(2, 132, 199, 0.08);
}

.pulse-dot {
    width: 7px;
    height: 7px;
    background: #0284C7;
    border-radius: 50%;
    box-shadow: 0 0 10px #0284C7;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { opacity: 0.3; }
    50% { opacity: 1; }
    100% { opacity: 0.3; }
}

.showcase-header h2 {
    font-size: 40px;
    font-weight: 800;
    color: #0F172A; /* Koyu Mavi / Slate Başlık */
    line-height: 1.2;
}

.text-glow {
    color: #0284C7;
    background: linear-gradient(135deg, #0284C7 0%, #0369A1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.showcase-desc {
    max-width: 460px;
    font-size: 15px;
    color: #475569;
    line-height: 1.6;
}

/* Master Grid Layout */
.showcase-master-grid {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 32px;
    align-items: stretch;
}

/* SOL: INTERAKTIF STAGE */
.stage-viewport-box {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    border-radius: 28px;
    border: 1px solid #BAE6FD;
    padding: 12px;
    box-shadow: 0 20px 50px rgba(15, 23, 42, 0.08);
}

.stage-slider-container {
    position: relative;
    width: 100%;
    height: 540px;
    border-radius: 20px;
    overflow: hidden;
    user-select: none;
}

.stage-img {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    object-fit: cover;
}

/* Before Masking Layer */
.stage-before-wrapper {
    position: absolute;
    top: 0; left: 0;
    width: 50%;
    height: 100%;
    overflow: hidden;
    z-index: 2;
    border-right: 3px solid #0284C7;
    box-shadow: 8px 0 20px rgba(15, 23, 42, 0.2);
}

.stage-before-wrapper .stage-img {
    width: 100%;
    max-width: none;
}

/* Buz Cam Efektli Rozetler (Glassmorphism) */
.hud-pill {
    position: absolute;
    top: 20px;
    z-index: 4;
    font-size: 11px;
    font-weight: 800;
    padding: 8px 18px;
    border-radius: 30px;
    letter-spacing: 1.5px;
    backdrop-filter: blur(12px);
}

.pill-before {
    left: 20px;
    background: rgba(15, 23, 42, 0.75);
    color: #F8FAFC;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.pill-after {
    right: 20px;
    background: rgba(2, 132, 199, 0.88);
    color: #FFFFFF;
    border: 1px solid #7DD3FC;
    box-shadow: 0 4px 20px rgba(2, 132, 199, 0.35);
}

/* Handle Design (Sürükleme Çubuğu) */
.stage-handle {
    position: absolute;
    top: 0; bottom: 0;
    left: 50%;
    width: 3px;
    z-index: 5;
    transform: translateX(-50%);
    pointer-events: none;
}

.handle-trigger {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 52px; height: 52px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0284C7 0%, #0369A1 100%);
    color: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    border: 4px solid #FFFFFF;
    box-shadow: 0 10px 25px rgba(2, 132, 199, 0.4);
    transition: transform 0.2s ease;
}

.stage-range {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    opacity: 0;
    z-index: 6;
    cursor: ew-resize;
}

/* Resim İçi HUD Overlay (Buz Mavisi / Koyu Lacivert Kartlar) */
.stage-hud-overlay {
    position: absolute;
    bottom: 24px;
    left: 24px;
    z-index: 4;
    display: flex;
    gap: 16px;
    pointer-events: none;
}

.hud-metric-card {
    background: rgba(15, 23, 42, 0.82); /* Koyu Lacivert Cam */
    backdrop-filter: blur(16px);
    border: 1px solid rgba(125, 211, 252, 0.3);
    padding: 14px 22px;
    border-radius: 18px;
    min-width: 155px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.hud-label {
    font-size: 10px;
    font-weight: 800;
    color: #7DD3FC; /* Buz mavisi metin */
    letter-spacing: 1px;
    display: block;
    margin-bottom: 4px;
}

.hud-value {
    font-size: 26px;
    font-weight: 900;
    color: #FFFFFF;
}

.hud-value small {
    font-size: 13px;
    color: #38BDF8;
}

.hud-progress {
    width: 100%;
    height: 5px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 3px;
    margin-top: 8px;
    overflow: hidden;
}

.hud-bar {
    height: 100%;
    background: #38BDF8;
    box-shadow: 0 0 12px #38BDF8;
    transition: width 0.5s ease;
}

.hud-tag {
    font-size: 10px;
    font-weight: 800;
    color: #34D399;
    margin-top: 6px;
}

/* SAĞ: SIDEBAR & PROJE SEÇİCİ */
.stage-sidebar {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    border-radius: 28px;
    border: 1px solid #BAE6FD;
    padding: 28px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 50px rgba(15, 23, 42, 0.06);
}

.sidebar-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    font-weight: 800;
    color: #0284C7;
    letter-spacing: 1.5px;
    margin-bottom: 20px;
}

.project-selector-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 24px;
}

/* Proje Kartları (Buz Mavisi Çerçeveli) */
.project-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px;
    background: #FFFFFF;
    border: 1px solid #E2E8F0;
    border-radius: 18px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}

.project-item:hover {
    border-color: #7DD3FC;
    transform: translateX(4px);
    box-shadow: 0 8px 20px rgba(2, 132, 199, 0.08);
}

.project-item.active {
    background: #F0F9FF;
    border-color: #0284C7;
    box-shadow: 0 10px 25px rgba(2, 132, 199, 0.12);
}

.proj-thumb {
    width: 54px;
    height: 54px;
    border-radius: 12px;
    overflow: hidden;
    flex-shrink: 0;
}

.proj-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

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

.proj-type {
    font-size: 10px;
    font-weight: 800;
    color: #0284C7;
    text-transform: uppercase;
}

.proj-info h4 {
    font-size: 14px;
    font-weight: 800;
    color: #0F172A;
    margin: 2px 0;
}

.proj-spec {
    font-size: 12px;
    color: #64748B;
}

.proj-active-indicator {
    width: 4px;
    height: 0%;
    background: #0284C7;
    position: absolute;
    right: 0; top: 50%;
    transform: translateY(-50%);
    transition: height 0.3s ease;
    border-radius: 4px;
}

.project-item.active .proj-active-indicator {
    height: 60%;
}

/* Detay Özet Paneli (Koyu Mavi Kontrastlı Kutucuk) */
.active-proj-summary {
    margin-top: auto;
    background: #0F172A; /* Alt Paneli Koyu Lacivert yaparak müthiş bir kontrast sağladık */
    border-radius: 20px;
    padding: 22px;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.15);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    margin-bottom: 10px;
    color: #94A3B8;
}

.summary-row strong {
    color: #FFFFFF;
}

.btn-stage-cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 14px 20px;
    background: linear-gradient(135deg, #0284C7 0%, #0369A1 100%);
    color: #FFFFFF;
    border-radius: 12px;
    text-decoration: none;
    font-size: 13px;
    font-weight: 700;
    margin-top: 14px;
    transition: all 0.3s ease;
}

.btn-stage-cta:hover {
    box-shadow: 0 0 20px rgba(2, 132, 199, 0.6);
    transform: translateY(-2px);
}

/* RESPONSIVE */
@media (max-width: 1100px) {
    .showcase-master-grid {
        grid-template-columns: 1fr;
    }
    .stage-slider-container {
        height: 400px;
    }
}

@media (max-width: 600px) {
    .showcase-header h2 { font-size: 28px; }
    .stage-hud-overlay { display: none; }
    .stage-slider-container { height: 310px; }
}

/* ==========================================
   SIMPLE MODERN REFERENCES GRID
   ========================================== */
.simple-ref-section {
    padding: 100px 0;
    background: #0F172A; /* Koyu Lacivert / Slate Zemin */
    color: #F8FAFC;
    position: relative;
}

.simple-ref-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 50px auto;
}

.simple-ref-header h2 {
    font-size: 36px;
    font-weight: 800;
    color: #FFFFFF;
    margin: 10px 0 8px 0;
}

.simple-ref-header p {
    font-size: 14px;
    color: #94A3B8;
}

/* Grid Düzeni (Yan yana 4'lü, mobilde 1'li) */
.simple-ref-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

/* Kart Tasarımı */
.ref-item-card {
    background: rgba(30, 41, 59, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.ref-item-card:hover {
    transform: translateY(-5px);
    border-color: #38BDF8; /* Buz mavisi highlight */
    box-shadow: 0 12px 30px rgba(2, 132, 199, 0.15);
}

.ref-thumb {
    width: 100%;
    height: 160px;
    overflow: hidden;
    position: relative;
}

.ref-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.9);
    transition: transform 0.4s ease, filter 0.4s ease;
}

.ref-item-card:hover .ref-thumb img {
    transform: scale(1.05);
    filter: brightness(1);
}

/* Kart Yazı Alanı */
.ref-details {
    padding: 16px;
}

.ref-details h4 {
    font-size: 15px;
    font-weight: 700;
    color: #F8FAFC;
    margin-bottom: 8px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ref-tag-line {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: #38BDF8; /* Buz mavisi vurgu */
    font-weight: 600;
}

.ref-tag-line i {
    font-size: 11px;
}

.ref-dot {
    color: #475569;
}

.ref-year {
    color: #94A3B8;
}

/* Bottom Button */
.simple-ref-bottom {
    text-align: center;
}

.btn-pill-more {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 28px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 30px;
    color: #F8FAFC;
    font-size: 13px;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-pill-more:hover {
    background: #0284C7;
    border-color: #0284C7;
    color: #FFFFFF;
    box-shadow: 0 0 20px rgba(2, 132, 199, 0.4);
}

/* RESPONSIVE */
@media (max-width: 1100px) {
    .simple-ref-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
    .simple-ref-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
    .simple-ref-grid { grid-template-columns: 1fr; }
}

/* ==========================================
   SITE FOOTER (DARK ICE GLASS)
   ========================================== */
.site-footer {
    background: #080C14; /* Derin Koyu Zemin */
    color: #94A3B8;
    position: relative;
    padding-top: 60px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* --- Pre-Footer CTA Kutu --- */
.footer-cta-box {
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.9) 0%, rgba(30, 41, 59, 0.7) 100%);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(56, 189, 248, 0.25);
    border-radius: 24px;
    padding: 40px 50px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 0 0 30px rgba(56, 189, 248, 0.08);
    margin-bottom: 70px;
}

.cta-content h3 {
    font-size: 26px;
    font-weight: 800;
    color: #F8FAFC;
    margin: 8px 0 6px 0;
}

.cta-content p {
    font-size: 14px;
    color: #94A3B8;
}

.cta-actions {
    display: flex;
    gap: 14px;
    flex-shrink: 0;
}

.btn-cta-phone {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #38BDF8;
    color: #080C14;
    padding: 12px 24px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-cta-phone:hover {
    background: #7DD3FC;
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(56, 189, 248, 0.4);
}

.btn-cta-whatsapp {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #25D366;
    color: #FFFFFF;
    padding: 12px 24px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-cta-whatsapp:hover {
    background: #20ba5a;
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(37, 211, 102, 0.4);
}

/* --- Ana Footer Grid --- */
.footer-main {
    padding-bottom: 60px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 40px;
}

.footer-logo {
    margin-bottom: 16px;
}

.footer-logo .logo-text {
    font-size: 22px;
    font-weight: 900;
    color: #FFFFFF;
    letter-spacing: 1px;
}

.about-desc {
    font-size: 13px;
    line-height: 1.7;
    color: #94A3B8;
    margin-bottom: 24px;
}

/* Sosyal Medya İkonları */
.footer-socials {
    display: flex;
    gap: 10px;
}

.footer-socials a {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(30, 41, 59, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: #F8FAFC;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-socials a:hover {
    background: #38BDF8;
    color: #080C14;
    border-color: #38BDF8;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(56, 189, 248, 0.3);
}

/* Sütun Başlıkları */
.footer-title {
    font-size: 16px;
    font-weight: 700;
    color: #F8FAFC;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: #38BDF8;
    border-radius: 2px;
}

/* Footer Linkleri */
.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    color: #94A3B8;
    font-size: 13px;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
}

.footer-links a i {
    font-size: 10px;
    color: #38BDF8;
    transition: transform 0.2s ease;
}

.footer-links a:hover {
    color: #38BDF8;
    transform: translateX(4px);
}

.footer-links a:hover i {
    transform: translateX(2px);
}

/* İletişim Listesi */
.footer-contact-info {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.footer-contact-info li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 13px;
    color: #94A3B8;
}

.footer-contact-info i {
    color: #38BDF8;
    font-size: 15px;
    margin-top: 2px;
    flex-shrink: 0;
}

.footer-contact-info a {
    color: #94A3B8;
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-contact-info a:hover {
    color: #38BDF8;
}

/* --- Alt Telif Çizgisi --- */
.footer-bottom {
    background: #04060A;
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 12px;
}

.bottom-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 15px;
}

.bottom-links {
    display: flex;
    align-items: center;
    gap: 10px;
}

.bottom-links a {
    color: #64748B;
    text-decoration: none;
    transition: color 0.2s ease;
}

.bottom-links a:hover {
    color: #38BDF8;
}

.bottom-links .sep {
    color: #334155;
}

/* RESPONSIVE */
@media (max-width: 992px) {
    .footer-cta-box {
        flex-direction: column;
        text-align: center;
        padding: 30px;
    }
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

@media (max-width: 576px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .bottom-flex {
        flex-direction: column;
        text-align: center;
        justify-content: center;
    }
    .cta-actions {
        flex-direction: column;
        width: 100%;
    }
    .btn-cta-phone, .btn-cta-whatsapp {
        justify-content: center;
        width: 100%;
    }
}