/* ==========================================================================
   CepteKampüs - Premium School Management System CSS (Light Theme - Mega Menu)
   ========================================================================== */

/* Import Google Font */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* CSS Variables for Premium Design System (Light Theme - Logo Harmonized) */
:root {
    --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    
    /* Light Theme Palette */
    --bg-main: #f8fafc;             /* Light gray/blue base */
    --bg-card: #ffffff;             /* Pure white cards */
    --bg-card-hover: #ffffff;
    --bg-header: rgba(255, 255, 255, 0.92);
    
    /* Brand Colors from Logo */
    --color-primary: #075c7a;       /* Logo Petrol Blue */
    --color-primary-rgb: 7, 92, 122;
    --color-secondary: #ee7d31;     /* Logo Warm Orange */
    --color-secondary-rgb: 238, 125, 49;
    --color-accent: #158da8;        /* Lighter Petrol/Teal */
    --color-accent-rgb: 21, 141, 168;
    --color-info: #0ea5e9;
    
    /* Text Colors */
    --text-primary: #0f172a;        /* Dark Slate */
    --text-secondary: #475569;      /* Gray Slate */
    --text-muted: #94a3b8;          /* Light Slate Gray */
    
    /* Border & Shadows */
    --border-glass: rgba(15, 23, 42, 0.08);
    --border-glass-hover: rgba(15, 23, 42, 0.16);
    --shadow-premium: 0 10px 30px -10px rgba(7, 92, 122, 0.08), 0 1px 3px rgba(0, 0, 0, 0.01);
    --shadow-premium-hover: 0 20px 40px -15px rgba(7, 92, 122, 0.15), 0 1px 5px rgba(0, 0, 0, 0.02);
    --shadow-glow: 0 10px 25px rgba(7, 92, 122, 0.12);
    
    /* Transitions */
    --transition-fast: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--bg-main);
    /* body'deki overflow-x:hidden, position:fixed elemanları (ör. kapalı mobil menü,
       ekran dışına right:-100% ile itilmiş .nav-menu) hiç kapsamıyor — fixed elemanlar
       viewport'a göre konumlanır, sadece kökteki (html) overflow gerçek tarayıcı
       kaydırma alanını sınırlar. Bu eksiklik mobilde sayfanın yatayda kaymasına
       (görünmeyen ~190px boşluk) yol açıyordu. */
    overflow-x: hidden;
}

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

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--bg-main);
}
::-webkit-scrollbar-thumb {
    background: rgba(var(--color-primary-rgb), 0.2);
    border-radius: 5px;
    border: 2px solid var(--bg-main);
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(var(--color-primary-rgb), 0.5);
}

/* Typography Utilities */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

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

img, svg {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Layout Elements */
.container {
    width: 100%;
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

.section {
    padding: 6rem 0;
    position: relative;
}

/* Ambient Glow Background Elements */
.ambient-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(var(--color-primary-rgb), 0.08) 0%, rgba(var(--color-secondary-rgb), 0.03) 50%, rgba(0,0,0,0) 100%);
    filter: blur(90px);
    z-index: -1;
    pointer-events: none;
}

.ambient-glow-1 { top: -10%; left: -10%; }
.ambient-glow-2 { bottom: 10%; right: -10%; background: radial-gradient(circle, rgba(var(--color-secondary-rgb), 0.08) 0%, rgba(var(--color-primary-rgb), 0.03) 50%, rgba(0,0,0,0) 100%); }
.ambient-glow-3 { top: 40%; left: 30%; }

/* Buttons & Interactive Elements */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-sans);
    font-weight: 600;
    padding: 0.8rem 1.6rem;
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--transition-normal);
    gap: 0.5rem;
    font-size: 0.95rem;
    border: 1px solid transparent;
}

.btn svg.btn-arrow {
    transition: transform var(--transition-fast);
}

.btn:hover svg.btn-arrow {
    transform: translateX(4px);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: #fff;
    box-shadow: 0 8px 20px -6px rgba(var(--color-primary-rgb), 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px -4px rgba(var(--color-primary-rgb), 0.55), var(--shadow-glow);
}

.btn-secondary {
    background: #f1f5f9;
    color: var(--text-primary);
    border: 1px solid #e2e8f0;
}

.btn-secondary:hover {
    background: #e2e8f0;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 1rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    background: rgba(var(--color-secondary-rgb), 0.1);
    color: var(--color-secondary);
    border: 1px solid rgba(var(--color-secondary-rgb), 0.2);
    margin-bottom: 1.5rem;
    gap: 0.4rem;
}

/* Glassmorphism Card Style (Light) */
.glass-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: var(--shadow-premium);
    transition: all var(--transition-normal);
}

.glass-card:hover {
    border-color: var(--border-glass-hover);
    transform: translateY(-5px);
    box-shadow: var(--shadow-premium-hover);
}

/* Top Level Campaign Banner */
.campaign-bar {
    background: linear-gradient(90deg, #0b1d25 0%, var(--color-primary) 50%, var(--color-secondary) 100%);
    color: #ffffff;
    height: 38px;
    font-size: 0.82rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    z-index: 1002;
    padding: 0 1.5rem;
    letter-spacing: 0.02em;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.campaign-bar a {
    color: #ffe0b2;
    text-decoration: none;
    margin-left: 0.75rem;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-weight: 700;
    border-bottom: 1px dashed #ffe0b2;
    padding-bottom: 1px;
}

.campaign-bar a:hover {
    color: #ffffff;
    border-color: #ffffff;
}

/* Professional Topbar Styling */
.topbar {
    background: #0c202a;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    height: 38px;
    font-size: 0.8rem;
    color: #90a5ae;
    display: flex;
    align-items: center;
    position: relative;
    z-index: 1001;
}

.topbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.topbar-left, .topbar-right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.topbar-left span {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.topbar-left svg {
    color: var(--color-secondary);
}

.lang-switcher {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.lang-btn {
    color: #90a5ae;
    transition: color var(--transition-fast);
}

.lang-btn.active {
    color: #ffffff;
}

.lang-divider {
    color: rgba(255, 255, 255, 0.15);
}

.topbar-right a {
    color: #90a5ae;
    transition: color var(--transition-fast);
}

.topbar-right a:hover {
    color: #fff;
}

.topbar-socials {
    display: flex;
    gap: 0.75rem;
    border-left: 1px solid rgba(255, 255, 255, 0.1);
    padding-left: 1rem;
}

.topbar-socials a {
    color: #90a5ae;
}

.topbar-socials a:hover {
    color: var(--color-secondary);
}

/* Header & Professional Navigation */
.header {
    position: fixed;
    top: 76px; /* 38px campaign bar + 38px topbar */
    left: 0;
    width: 100%;
    z-index: 1000;
    background: transparent;
    transition: all var(--transition-normal);
    border-bottom: 1px solid transparent;
}

.header.scrolled {
    top: 0;
    background: var(--bg-header);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-glass);
    padding: 0.5rem 0;
    box-shadow: 0 10px 30px -10px rgba(7, 92, 122, 0.06);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 5rem;
    transition: all var(--transition-normal);
}

.header.scrolled .container {
    height: 4.5rem;
}

.logo {
    display: flex;
    align-items: center;
    cursor: pointer;
}

.logo img {
    height: 42px;
    width: auto;
    object-fit: contain;
    transition: transform var(--transition-fast);
}

.logo:hover img {
    transform: scale(1.02);
}

.nav-menu {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 2.5rem;
}

.nav-item {
    position: relative;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-secondary);
    position: relative;
    padding: 0.6rem 0;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    letter-spacing: 0.01em;
}

.nav-chevron {
    display: inline-flex;
    align-items: center;
    color: var(--text-muted);
    transition: transform var(--transition-fast), color var(--transition-fast);
}

.nav-item-dropdown:hover .nav-chevron {
    transform: rotate(180deg);
    color: var(--color-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    transition: var(--transition-normal);
}

.nav-link:hover {
    color: var(--color-primary);
}

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

.nav-link.active {
    color: var(--color-primary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* ==========================================================================
   Mega Menu Core UI (Stripe/Tailwind Inspired)
   ========================================================================== */
.nav-item-dropdown {
    position: unset;
}

.mega-menu {
    position: absolute;
    top: 100%;
    left: 1.5rem;
    right: 1.5rem;
    background: #ffffff;
    border: 1px solid var(--border-glass-hover);
    border-radius: 16px;
    box-shadow: 0 25px 50px -12px rgba(7, 92, 122, 0.18);
    padding: 2.2rem;
    display: grid;
    grid-template-columns: 1fr 1fr 1.2fr;
    gap: 2.5rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(15px);
    transition: transform var(--transition-normal), opacity var(--transition-normal), visibility var(--transition-normal);
    z-index: 999;
}

.nav-item-dropdown:hover .mega-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Mega Menu Columns */
.mega-menu-col h5 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-primary);
    margin-bottom: 1.25rem;
    border-bottom: 1px solid #f1f5f9;
    padding-bottom: 0.5rem;
    font-weight: 700;
}

.mega-menu-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.mega-menu-link {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    transition: transform var(--transition-fast);
}

.mega-menu-link svg {
    color: var(--color-secondary);
    margin-top: 0.15rem;
    flex-shrink: 0;
}

.mega-menu-link-title {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
    display: block;
    transition: color var(--transition-fast);
}

.mega-menu-link:hover .mega-menu-link-title {
    color: var(--color-primary);
}

.mega-menu-link:hover {
    transform: translateX(4px);
}

.mega-menu-link-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    display: block;
    margin-top: 0.15rem;
}

.mega-menu-promo {
    background: linear-gradient(135deg, rgba(var(--color-primary-rgb), 0.04) 0%, rgba(var(--color-accent-rgb), 0.02) 100%);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid rgba(var(--color-primary-rgb), 0.08);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.mega-menu-promo-content h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--color-primary);
}

.mega-menu-promo-content p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
    line-height: 1.5;
}

/* Mobile Menu Toggle */
.hamburger {
    display: none;
    flex-direction: column;
    width: 30px;
    height: 20px;
    justify-content: space-between;
    cursor: pointer;
    z-index: 1001;
}

.hamburger span {
    display: block;
    height: 3px;
    width: 100%;
    background-color: var(--text-primary);
    border-radius: 3px;
    transition: all var(--transition-normal);
}

/* ==========================================================================
   Hero Slider Section
   ========================================================================== */
.hero-section {
    position: relative;
    height: 80vh;
    max-height: 720px;
    min-height: 620px;
    width: 100%;
    overflow: hidden;
    display: flex;
    align-items: center;
    padding: 0;
    background: radial-gradient(circle at 10% 20%, rgba(224, 242, 254, 0.4) 0%, rgba(255, 255, 255, 1) 90%);
}

.slider-container {
    width: 100%;
    height: 100%;
    position: relative;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
    display: flex;
    align-items: center;
    padding-top: 80px; /* Space to clear fixed header area */
    z-index: 1;
}

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

.slide-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
    opacity: 0.15;
    filter: grayscale(1);
}

.slide-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
    height: 100%;
    padding-top: 0; /* Clear grid push to keep slider centered */
}

.slide-content {
    /* Kullanıcı geri bildirimi: "sayfa açılırken sağdan soldan birşeyler geliyor düz sayfa direk
       açılsın" — bu blok her sayfa yüklemesinde hero metnini aşağıdan kaydırarak beliriyordu.
       Artık başlangıç durumu zaten son (görünür) durum, animasyon yok — sayfa direkt açılıyor. */
    opacity: 1;
    transform: none;
}

.slide.active .slide-content {
    opacity: 1;
    transform: none;
}

.slide-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.slide-title span {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.slide-desc {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--text-secondary);
    margin-bottom: 1.75rem; /* Raised buttons slightly closer to text */
    max-width: 600px;
}

.nav-actions-slide {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.slide-visual {
    /* Aynı düzeltme: telefon görseli sağdan kayarak/büyüyerek gelmiyor artık, direkt yerinde. */
    position: relative;
    opacity: 1;
    transform: none;
    display: flex;
    justify-content: center;
}

.slide.active .slide-visual {
    opacity: 1;
    transform: none;
}

/* Slider Controls */
.slider-controls {
    position: absolute;
    bottom: 2.5rem; /* Positioned nicely near the bottom of capped height hero */
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2.5rem;
    z-index: 10;
}

.slider-arrows {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.slider-arrow {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: #ffffff;
    border: 1px solid var(--border-glass);
    margin: 0;
    padding: 0;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
    transition: all var(--transition-fast);
}

.slider-arrow:hover {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
    transform: scale(1.05);
}

.slider-dots {
    display: flex;
    gap: 0.75rem;
}

.slider-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.15);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.slider-dot.active {
    background: var(--color-secondary);
    width: 32px;
    border-radius: 10px;
}

/* Slider Mockups (HTML/CSS Based Devices) - Light Theme Styled */
.mockup-container {
    width: 100%;
    max-width: 420px;
    perspective: 1000px;
}

.phone-mockup {
    width: 280px;
    height: 570px;
    background: #0f172a;
    border-radius: 40px;
    padding: 12px;
    box-shadow: 0px 25px 50px -12px rgba(7, 92, 122, 0.25);
    border: 4px solid #334155;
    position: relative;
    margin: 0 auto;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: #f8fafc;
    border-radius: 32px;
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
}

.phone-notch {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 110px;
    height: 25px;
    background: #0f172a;
    border-bottom-left-radius: 16px;
    border-bottom-right-radius: 16px;
    z-index: 10;
}

.phone-header {
    padding: 2.2rem 1.2rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #ffffff;
    border-bottom: 1px solid #e2e8f0;
}

.phone-title {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-primary);
}

.phone-profile {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--color-primary);
}

.phone-content {
    flex: 1;
    padding: 1rem 1.2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    overflow-y: auto;
}

.phone-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.02);
}

.phone-chart {
    height: 100px;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    padding: 0.5rem 0;
}

.phone-chart-bar {
    width: 16px;
    border-radius: 4px;
    background: var(--color-secondary);
    transition: height 1s;
}

/* Tablet / Dashboard Mockup */
.dashboard-mockup {
    width: 100%;
    max-width: 500px;
    height: 320px;
    background: #0f172a;
    border-radius: 20px;
    padding: 8px;
    box-shadow: 0px 25px 50px -12px rgba(7, 92, 122, 0.2);
    border: 3px solid #334155;
}

.dashboard-screen {
    width: 100%;
    height: 100%;
    background: #f8fafc;
    border-radius: 14px;
    overflow: hidden;
    display: grid;
    grid-template-columns: 60px 1fr;
}

.db-sidebar {
    background: #0c202a;
    border-right: 1px solid #e2e8f0;
    padding: 1rem 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.db-side-icon {
    width: 24px;
    height: 24px;
    border-radius: 6px;
    background: rgba(255,255,255,0.1);
}

.db-side-icon.active {
    background: var(--color-primary);
}

.db-main {
    padding: 1.2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.db-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.db-title {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-primary);
}

.db-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

.db-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 0.75rem;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}

.db-card-val {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--color-secondary);
}

.db-card-lbl {
    font-size: 0.6rem;
    color: var(--text-secondary);
}

.db-chart-container {
    flex: 1;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

/* ==========================================================================
   Stats Banner
   ========================================================================== */
.stats-section {
    padding: 4rem 0;
    position: relative;
    z-index: 10;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    background: #ffffff;
    border: 1px solid var(--border-glass);
}

.stat-item {
    text-align: center;
    position: relative;
}

.stat-item::after {
    content: '';
    position: absolute;
    right: -1rem;
    top: 20%;
    height: 60%;
    width: 1px;
    background: rgba(0, 0, 0, 0.08);
}

.stat-item:last-child::after {
    display: none;
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ==========================================================================
   Kullanıcı Rolleri (Roles)
   ========================================================================== */
.roles-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 3.5rem;
}

.role-card {
    position: relative;
    overflow: hidden;
    background: #ffffff;
}

.role-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background: rgba(var(--color-primary-rgb), 0.08);
    border: 1px solid rgba(var(--color-primary-rgb), 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--color-primary);
    transition: all var(--transition-normal);
}

.role-card:hover .role-icon {
    background: var(--color-primary);
    color: #fff;
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 0 20px rgba(var(--color-primary-rgb), 0.2);
}

.role-title {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
}

.role-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* ==========================================================================
   Interactive Modules Section
   ========================================================================== */
.modules-section {
    position: relative;
}

.modules-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 4rem;
    align-items: center;
    margin-top: 3.5rem;
}

.modules-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.module-btn {
    background: #ffffff;
    border: 1px solid var(--border-glass);
    padding: 1.25rem 2rem;
    border-radius: 15px;
    cursor: pointer;
    text-align: left;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.01);
    transition: all var(--transition-normal);
}

.module-btn-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(var(--color-primary-rgb), 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    transition: all var(--transition-normal);
}

.module-btn-title {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text-secondary);
    transition: all var(--transition-normal);
}

.module-btn:hover {
    border-color: rgba(var(--color-primary-rgb), 0.2);
    background: #ffffff;
    box-shadow: 0 6px 12px rgba(0,0,0,0.03);
}

.module-btn.active {
    background: linear-gradient(135deg, rgba(var(--color-primary-rgb), 0.06) 0%, rgba(var(--color-secondary-rgb), 0.04) 100%);
    border-color: rgba(var(--color-primary-rgb), 0.3);
    box-shadow: var(--shadow-premium-hover);
}

.module-btn.active .module-btn-icon {
    background: var(--color-primary);
    color: #fff;
}

.module-btn.active .module-btn-title {
    color: var(--color-primary);
}

/* Modules Interactive Display Area */
.modules-display {
    min-height: 450px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.module-content-card {
    width: 100%;
    opacity: 0;
    transform: translateY(20px) scale(0.98);
    display: none;
    transition: all var(--transition-normal);
}

.module-content-card.active {
    display: block;
    opacity: 1;
    transform: translateY(0) scale(1);
}

.module-display-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 3rem;
    align-items: center;
}

.module-display-info h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--color-primary) 50%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.module-display-info p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.module-feature-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.module-feature-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.module-feature-item svg {
    color: var(--color-secondary);
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

/* Module Screen Previews (Light Mode) */
.module-preview-screen {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.03);
    height: 280px;
    overflow: hidden;
    position: relative;
}

/* ==========================================================================
   Pricing Page Elements
   ========================================================================== */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3.5rem;
}

.pricing-card {
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    background: #ffffff;
    border: 1px solid var(--border-glass);
}

.pricing-card.popular {
    border: 2px solid var(--color-primary);
    transform: translateY(-8px);
}

.pricing-card.popular:hover {
    transform: translateY(-12px);
}

.pricing-tag {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: white;
    padding: 0.25rem 1rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
}

.pricing-header h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.pricing-price {
    font-size: 2.75rem;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 1.5rem;
}

.pricing-price span {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.pricing-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin: 2rem 0;
    text-align: left;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.pricing-features li svg {
    color: var(--color-primary);
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

/* Demo Calculator Section */
.demo-calculator-box {
    margin-top: 5rem;
}

.demo-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
    margin-top: 3.5rem;
}

.demo-calculator {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.calc-range-wrapper {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.calc-labels {
    display: flex;
    justify-content: space-between;
    font-weight: 600;
}

.calc-student-count {
    color: var(--color-primary);
    font-size: 1.25rem;
}

/* Range Input Styling */
input[type=range] {
    -webkit-appearance: none;
    width: 100%;
    background: transparent;
}

input[type=range]:focus {
    outline: none;
}

input[type=range]::-webkit-slider-runnable-track {
    width: 100%;
    height: 8px;
    cursor: pointer;
    background: #e2e8f0;
    border-radius: 4px;
    border: none;
}

input[type=range]::-webkit-slider-thumb {
    height: 24px;
    width: 24px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    cursor: pointer;
    -webkit-appearance: none;
    margin-top: -8px;
    box-shadow: 0 2px 10px rgba(var(--color-primary-rgb), 0.3);
    transition: transform var(--transition-fast);
}

input[type=range]::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

.calc-modules-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.calc-module-checkbox {
    display: none;
}

.calc-module-label {
    background: #ffffff;
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: 0 2px 4px rgba(0,0,0,0.01);
    transition: all var(--transition-normal);
}

.calc-module-label::before {
    content: '';
    width: 18px;
    height: 18px;
    border-radius: 4px;
    border: 1.5px solid var(--text-muted);
    display: inline-block;
    flex-shrink: 0;
    transition: all var(--transition-fast);
}

.calc-module-checkbox:checked + .calc-module-label {
    background: rgba(var(--color-primary-rgb), 0.05);
    border-color: var(--color-primary);
}

.calc-module-checkbox:checked + .calc-module-label::before {
    border-color: var(--color-primary);
    background: var(--color-primary);
}

.calc-result {
    background: linear-gradient(135deg, rgba(var(--color-primary-rgb), 0.05) 0%, rgba(var(--color-secondary-rgb), 0.02) 100%);
    border: 1px dashed rgba(var(--color-primary-rgb), 0.25);
    border-radius: 15px;
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.calc-price-label {
    font-weight: 600;
    color: var(--text-secondary);
}

.calc-price-value {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--color-primary);
}

/* Contact / Demo Form */
.demo-form-wrapper h3 {
    font-size: 1.6rem;
    margin-bottom: 0.5rem;
}

.demo-form-wrapper p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 0.95rem;
}

.demo-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

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

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-control {
    width: 100%;
    box-sizing: border-box;
    background: #ffffff;
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    padding: 0.85rem 1.25rem;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.01);
    transition: all var(--transition-normal);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 15px rgba(var(--color-primary-rgb), 0.1);
}

select.form-control {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%230f2e46' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1.25rem center;
    background-size: 16px;
    padding-right: 3rem;
    cursor: pointer;
}

select.form-control option {
    background-color: #ffffff;
    color: var(--text-primary);
    padding: 0.5rem;
}

/* ==========================================================================
   About Page: FAQ Accordion
   ========================================================================== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-bottom: 5rem;
}

.about-features-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    margin-top: 2rem;
}

.about-features-list li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.about-icon-wrapper {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(var(--color-primary-rgb), 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    flex-shrink: 0;
}

.about-faq {
    margin-top: 5rem;
}

.accordion-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 3rem;
}

.accordion-item {
    background: #ffffff;
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.accordion-header {
    width: 100%;
    padding: 1.25rem 2rem;
    background: none;
    border: none;
    text-align: left;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition-fast);
}

.accordion-icon {
    font-size: 1.25rem;
    font-weight: 300;
    color: var(--color-primary);
    transition: transform var(--transition-fast);
}

.accordion-item.active {
    border-color: rgba(var(--color-primary-rgb), 0.25);
    box-shadow: 0 4px 20px rgba(7, 92, 122, 0.05);
}

.accordion-item.active .accordion-icon {
    transform: rotate(45deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal) ease-out;
    padding: 0 2rem;
}

.accordion-content p {
    padding-bottom: 1.25rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ==========================================================================
   Contact Page: Info & Form Layout
   ========================================================================== */
.contact-info-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 4rem;
    margin-top: 3.5rem;
}

.contact-info-cards {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-card-item {
    display: flex;
    gap: 1.25rem;
    align-items: flex-start;
}

.contact-icon-box {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: rgba(var(--color-primary-rgb), 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    flex-shrink: 0;
}

.contact-card-detail h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.contact-card-detail p, .contact-card-detail a {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.contact-map-placeholder {
    width: 100%;
    height: 350px;
    border-radius: 20px;
    border: 1px solid var(--border-glass);
    overflow: hidden;
    box-shadow: var(--shadow-premium);
}

/* ==========================================================================
   Testimonials Slider (Referanslar)
   ========================================================================== */
.testimonials-section {
    position: relative;
}

.testimonials-track {
    display: flex;
    gap: 2rem;
    overflow-x: auto;
    padding: 2rem 0;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
}

.testimonials-track::-webkit-scrollbar {
    display: none;
}

.testimonial-card {
    flex: 0 0 400px;
    scroll-snap-align: start;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background: #ffffff;
    border: 1px solid var(--border-glass);
}

.test-text {
    font-size: 1.05rem;
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    position: relative;
}

.test-text::before {
    content: '"';
    font-size: 4rem;
    color: rgba(var(--color-primary-rgb), 0.1);
    position: absolute;
    top: -2rem;
    left: -1rem;
    font-family: serif;
}

.test-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.test-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: #fff;
}

.test-meta h4 {
    font-size: 1rem;
}

.test-meta p {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    background: #0c1a22; /* Keep footer dark for premium look */
    border-top: 1px solid rgba(255,255,255,0.05);
    padding: 5rem 0 2rem;
    position: relative;
    z-index: 10;
    color: #cbd5e1;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-about p {
    color: #94a3b8;
    margin-top: 1.25rem;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.footer-socials {
    display: flex;
    gap: 1rem;
}

.social-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #cbd5e1;
    transition: all var(--transition-fast);
}

.social-icon:hover {
    background: var(--color-secondary);
    border-color: var(--color-secondary);
    color: #fff;
    transform: scale(1.08);
}

.footer-links h4 {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: #fff;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.footer-links a {
    color: #94a3b8;
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: var(--color-secondary);
    padding-left: 5px;
}

.footer-newsletter h4 {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: #fff;
}

.footer-newsletter p {
    color: #94a3b8;
    font-size: 0.95rem;
    margin-bottom: 1.25rem;
}

.newsletter-form {
    display: flex;
    gap: 0.5rem;
}

.newsletter-form .form-control {
    flex: 1;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: #fff;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #64748b;
    font-size: 0.9rem;
}

.footer-bottom a {
    color: #64748b;
}

.footer-bottom a:hover {
    color: #94a3b8;
}

/* ==========================================================================
   Section Header Styling
   ========================================================================== */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.section-title span {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: clamp(0.95rem, 1.5vw, 1.1rem);
}

/* Sub-page Header Banner */
.page-banner {
    padding: 11rem 0 4rem; /* Shift down because of campaign bar */
    background: linear-gradient(135deg, rgba(224, 242, 254, 0.3) 0%, rgba(248, 250, 252, 1) 100%);
    border-bottom: 1px solid var(--border-glass);
}

.page-banner-title {
    font-size: clamp(2.2rem, 5vw, 3rem);
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.page-banner-desc {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 800px;
}

/* ==========================================================================
   Login / Register Modal
   ========================================================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    visibility: hidden;
    transition: visibility 0.25s step-end;
}

.modal.active {
    visibility: visible;
    transition: visibility 0s step-start;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
    opacity: 0;
    transition: opacity 0.2s ease, backdrop-filter 0.2s ease, -webkit-backdrop-filter 0.2s ease;
    z-index: 2005 !important;
}

.modal.active .modal-overlay {
    opacity: 1;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 450px;
    background: #ffffff;
    border: 1px solid var(--border-glass-hover);
    border-radius: 24px;
    padding: 3rem;
    box-shadow: 0 25px 50px -12px rgba(7, 92, 122, 0.25);
    transform: scale(0.95);
    opacity: 0;
    transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.2s ease;
    z-index: 2010 !important;
}

.modal.active .modal-content {
    transform: scale(1);
    opacity: 1;
}

.modal-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.5rem;
    transition: color var(--transition-fast);
}

.modal-close:hover {
    color: var(--text-primary);
}

/* ==========================================================================
   Responsive Design Breakpoints
   ========================================================================== */

@media (max-width: 1024px) {
    .nav-item-dropdown {
        position: relative; /* Reset unset for mobile structure */
    }
    
    .mega-menu {
        position: static;
        width: 100%;
        box-shadow: none;
        border: none;
        padding: 1rem 0 0 1rem;
        display: none; /* Controlled on mobile menu toggle */
        grid-template-columns: 1fr;
        gap: 1.5rem;
        opacity: 1;
        visibility: visible;
        transform: none;
    }
    
    .nav-item-dropdown:hover .mega-menu {
        display: block;
    }
    
    .mega-menu-promo {
        display: none; /* Hide promo inside mobile dropdown to save space */
    }
    
    .slide-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
        align-content: center;
    }
    
    .slide-desc {
        margin-left: auto;
        margin-right: auto;
    }
    
    .slide-visual {
        transform: scale(0.85);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stat-item:nth-child(2)::after {
        display: none;
    }
    
    .roles-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .modules-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .modules-display {
        min-height: auto;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
        max-width: 450px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .pricing-card.popular {
        transform: none;
    }
    
    .pricing-card.popular:hover {
        transform: translateY(-5px);
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .demo-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .contact-info-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    .campaign-bar, .topbar {
        display: none !important; /* Hide top header bars on mobile screens */
    }

    /* Header'daki Giriş Yap/Demo Talebi çifti (.nav-actions), .nav-menu içindeki off-canvas
       panelin bir parçası OLARAK TASARLANMIŞ (aşağıdaki .nav-actions kuralına bakın: sütun
       düzeni, tam genişlik, üst kenarlık — tam bir kayan menü altlığı gibi) ama HTML'de hiç
       o panelin içine taşınmamış; hâlâ sabit 4.25rem'lik header satırının içinde kalıyor. Sütun
       düzenine geçince iki büyük buton bu dar alana sığmayıp taşıyor ve altındaki hero içeriğinin
       üzerine biniyordu. En güvenli çözüm HTML'i yeniden yapılandırmak değil (masaüstü .header
       .container'ın space-between dağılımını bozar) — mobilde tamamen gizlemek: navigasyon zaten
       hamburger menüden, giriş/demo ise sayfa içindeki diğer CTA'lardan erişilebilir kalıyor.
       (Aynı desen zaten campaign-bar/topbar için de kullanılıyor, bkz. yukarı.) */
    .header > .container > .nav-actions {
        display: none !important;
    }
    
    .header {
        top: 0 !important;
        background: rgba(255, 255, 255, 0.98) !important;
        backdrop-filter: blur(12px) !important;
        -webkit-backdrop-filter: blur(12px) !important;
        border-bottom: 1px solid var(--border-glass);
    }
    
    .header .container {
        height: 4.25rem !important;
    }
    
    .hero {
        padding-top: 75px;
    }

    .slide {
        padding-top: 70px;
        padding-bottom: 4rem;
        min-height: auto;
    }
    
    .hamburger {
        display: flex;
        z-index: 1001;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 85%;
        max-width: 360px;
        height: 100vh;
        background: #ffffff;
        border-left: 1px solid var(--border-glass);
        flex-direction: column;
        justify-content: flex-start;
        align-items: stretch;
        padding: 5rem 1.5rem 2.5rem 1.5rem;
        gap: 1.25rem;
        transition: all var(--transition-normal);
        z-index: 1000;
        box-shadow: -10px 0 30px rgba(0,0,0,0.12);
        overflow-y: auto;
    }
    
    .nav-menu.active {
        right: 0;
    }

    .nav-link {
        font-size: 1.05rem;
        padding: 0.75rem 0;
        border-bottom: 1px solid #f1f5f9;
        width: 100%;
        justify-content: space-between;
    }
    
    .nav-actions {
        display: flex;
        flex-direction: column;
        gap: 0.75rem;
        width: 100%;
        margin-top: 1rem;
        padding-top: 1rem;
        border-top: 2px solid #f1f5f9;
    }

    .nav-actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    .slide-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1.5rem;
    }

    .slide-title {
        font-size: clamp(1.75rem, 5.5vw, 2.5rem);
        line-height: 1.25;
    }

    .slide-desc {
        font-size: 0.95rem;
        margin: 0 auto;
    }

    .slide-actions {
        flex-direction: column;
        width: 100%;
        gap: 0.75rem;
    }

    .slide-actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    .slide-visual {
        display: flex;
        justify-content: center;
        align-items: center;
        width: 100%;
        margin-top: 1rem;
        transform: scale(0.92);
    }
    
    .slider-controls {
        position: relative;
        bottom: 0;
        margin-top: 1.5rem;
        width: 100%;
        justify-content: center;
        gap: 1.5rem;
    }

    .section {
        padding: 3.5rem 0;
    }

    .glass-card {
        padding: 1.5rem 1.25rem;
        border-radius: 16px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.25rem;
    }
    
    .stat-item::after {
        display: none;
    }
    
    .roles-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }
    
    .testimonial-card {
        flex: 0 0 90vw;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

/* ==========================================================================
   Ecosystem Mind Map (Interactive Features Blueprint)
   ========================================================================== */
.ecosystem-container {
    display: grid;
    grid-template-columns: 1.3fr 0.7fr;
    gap: 3rem;
    margin-top: 3rem;
    align-items: start;
}

/* The Interactive Mind Map Workspace */
.mindmap-workspace {
    position: relative;
    background: #ffffff;
    border: 1px solid var(--border-glass);
    border-radius: 24px;
    height: 720px;
    box-shadow: var(--shadow-premium);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mindmap-svg-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.mindmap-center {
    position: absolute;
    width: 160px;
    height: 160px;
    background: #ffffff;
    border: 4px solid var(--color-primary);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 10;
    box-shadow: 0 10px 30px rgba(7, 92, 122, 0.15);
    padding: 1rem;
    text-align: center;
    cursor: pointer;
    transition: transform var(--transition-normal);
}
.mindmap-center:hover {
    transform: scale(1.05);
}
.mindmap-center img {
    max-width: 110px;
    max-height: 50px;
    margin-bottom: 0.25rem;
    object-fit: contain;
}
.mindmap-center span {
    font-size: 0.6rem;
    font-weight: 700;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Spokes / Nodes */
.mindmap-node {
    position: absolute;
    z-index: 5;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.node-genel { top: 90px; left: 50%; transform: translateX(-50%); }
.node-ogrenci-veli { top: 160px; right: 80px; }
.node-portallar { top: 50%; right: 40px; transform: translateY(-50%); }
.node-sistem { bottom: 160px; right: 80px; }
.node-ik-personel { bottom: 90px; left: 50%; transform: translateX(-50%); }
.node-finans-muhasebe { bottom: 160px; left: 80px; }
.node-akademik { top: 50%; left: 40px; transform: translateY(-50%); }
.node-iletisim-etkinlik { top: 160px; left: 80px; }

/* Node design */
.node-trigger {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: #ffffff;
    border: 2px solid #e2e8f0;
    padding: 0.6rem 1.2rem;
    border-radius: 50px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.03);
    font-weight: 700;
    font-size: 0.85rem;
    transition: all var(--transition-normal);
    color: var(--text-primary);
}

.node-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    flex-shrink: 0;
}

/* Brand colors for nodes */
.bg-genel { background: #0f2e46; }
.bg-ogrenci-veli { background: #39b54a; }
.bg-portallar { background: #00a79d; }
.bg-sistem { background: #0c202a; }
.bg-ik-personel { background: #0071bc; }
.bg-finans-muhasebe { background: #d81b60; }
.bg-akademik { background: #f6921e; }
.bg-iletisim-etkinlik { background: #6f2c91; }

.border-genel { border-color: #0f2e46 !important; }
.border-ogrenci-veli { border-color: #39b54a !important; }
.border-portallar { border-color: #00a79d !important; }
.border-sistem { border-color: #0c202a !important; }
.border-ik-personel { border-color: #0071bc !important; }
.border-finans-muhasebe { border-color: #d81b60 !important; }
.border-akademik { border-color: #f6921e !important; }
.border-iletisim-etkinlik { border-color: #6f2c91 !important; }

.node-trigger:hover, .node-trigger.active {
    transform: scale(1.05);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
}

/* Sub-features Popup card inside workspace */
.mindmap-details-card {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    width: 380px;
    background: #ffffff;
    border: 2px solid var(--color-primary);
    border-radius: 20px;
    padding: 1.5rem;
    box-shadow: 0 20px 50px rgba(0,0,0,0.15);
    z-index: 20;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.mindmap-details-card.active {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

.details-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid #f1f5f9;
    padding-bottom: 0.75rem;
    margin-bottom: 1rem;
}

.details-title-box {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.details-title-box h4 {
    font-size: 1.1rem;
    font-weight: 700;
}

.details-close {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    color: var(--text-muted);
}
.details-close:hover {
    color: var(--text-primary);
}

.details-list {
    max-height: 250px;
    overflow-y: auto;
    list-style: none;
    padding-right: 0.5rem;
}

.details-list li {
    font-size: 0.9rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid #f8fafc;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.details-list li::before {
    content: '•';
    color: var(--color-secondary);
    font-weight: bold;
}

.details-sub-section {
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--text-primary);
    margin-top: 0.75rem;
    margin-bottom: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Mobile Fallback view for Mind Map */
.mobile-mindmap-list {
    display: none;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
}

/* Right Column Panel: Mobil Portallar */
.portals-panel {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.portal-box {
    background: #ffffff;
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    padding: 1.75rem;
    box-shadow: var(--shadow-premium);
    position: relative;
    border-top: 5px solid var(--color-primary);
}

.portal-box.border-ogretmen { border-top-color: #39b54a; }
.portal-box.border-ogrenci { border-top-color: #0071bc; }
.portal-box.border-veli { border-top-color: #f15a24; }

.portal-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.portal-title {
    font-size: 1.15rem;
    font-weight: 700;
}

.portal-desc-list {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.portal-desc-list li {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.portal-desc-list li::before {
    content: '✓';
    color: var(--color-secondary);
    font-weight: bold;
}

/* Ortak Özellikler Box */
.common-features-box {
    background: #ffffff;
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    padding: 1.5rem;
    box-shadow: var(--shadow-premium);
}

@media (max-width: 1024px) {
    .ecosystem-container {
        grid-template-columns: 1fr;
    }
    .mindmap-workspace {
        display: none; /* Hide interactive map on smaller screens */
    }
    .mobile-mindmap-list {
        display: flex; /* Show mobile accordion list */
    }
}

@media (max-width: 576px) {
    .nav-actions-slide {
        display: flex;
        flex-direction: row;
        justify-content: center;
        width: 100%;
        gap: 0.5rem;
    }
    .nav-actions-slide .btn {
        flex: 1;
        padding: 0.75rem 0.5rem;
        font-size: 0.85rem;
        margin-right: 0 !important;
    }
    .modal-content {
        padding: 2rem 1.5rem;
        border-radius: 20px;
        width: 92%;
    }
}