/* 
 * Lotus Belgelendirme Modern Theme Stylesheet
 * Custom CSS with Dark/Light Mode Variables, Premium Animations, and Layouts
 */

:root {
    /* Color Palette */
    --bg-primary: #ffffff;
    --bg-secondary: #f4f7fc;
    --bg-tertiary: #051d3b;
    --border-color: #e2e8f0;
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    --accent: #1b63c7;
    --accent-hover: #154ea3;
    --accent-rgb: 27, 99, 199;
    --accent-gradient: linear-gradient(135deg, #1b63c7 0%, #002d6b 100%);
    
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    
    /* Layout Tokens */
    --font-main: 'Manrope', 'Segoe UI', Arial, sans-serif;
    --font-hand: 'Caveat', 'Segoe Print', cursive;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.08);
    
    --transition-fast: 0.2s ease;
    --transition-normal: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Dark Mode Tokens */
[data-theme="dark"] {
    --bg-primary: #070e17;
    --bg-secondary: #0c1622;
    --border-color: #1e293b;
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --accent: #3b82f6;
    --accent-hover: #60a5fa;
    --accent-rgb: 59, 130, 246;
    --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.4);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.5;
    overflow-x: hidden;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

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

/* Layout Utilities */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-padding {
    padding: 100px 0;
}

.grid-layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
    margin-top: 50px;
}

/* Typography & Badges */
.badge {
    display: inline-block;
    padding: 6px 16px;
    background-color: rgba(var(--accent-rgb), 0.1);
    color: var(--accent);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.badge-hand {
    font-family: var(--font-hand);
    font-size: 1.5rem;
    color: var(--accent);
    text-transform: none;
    letter-spacing: 0;
    margin-bottom: 8px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--accent-gradient);
    color: #ffffff !important;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(var(--accent-rgb), 0.25);
}

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

.btn-secondary:hover {
    background-color: var(--bg-secondary);
    border-color: var(--text-secondary);
}

/* Cards */
.card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 40px 32px;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-fast);
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(var(--accent-rgb), 0.3);
}

.card-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-full);
    background-color: rgba(var(--accent-rgb), 0.08);
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--accent);
    font-size: 1.6rem;
    margin-bottom: 24px;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.card:hover .card-icon {
    background: var(--accent-gradient);
    color: #ffffff;
}

.card-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 12px;
    line-height: 1.4;
}

.card-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 24px;
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--accent);
}

.card-link i {
    transition: transform var(--transition-fast);
}

.card-link:hover i {
    transform: translateX(4px);
}

/* Header - Sleek Dark Corporate Style */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--bg-tertiary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    height: 80px;
    display: flex;
    align-items: center;
    transition: background-color var(--transition-fast);
}

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

.logo-link img {
    height: 44px;
    width: auto;
    object-fit: contain;
    filter: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
    align-items: center;
}

.nav-link {
    font-weight: 600;
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.8);
}

.nav-link:hover, .nav-link.active {
    color: var(--accent);
}

/* Header Dropdowns */
.nav-item-dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background-color: var(--bg-tertiary);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    width: 250px;
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    padding: 12px;
}

.nav-item-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown-link {
    display: block;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.8);
}

.dropdown-link:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--accent);
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.theme-toggle {
    background: none;
    border: none;
    color: #ffffff;
    font-size: 1.25rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: var(--radius-full);
    transition: background-color var(--transition-fast);
}

.theme-toggle:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.theme-toggle .sun-icon {
    display: none;
}

[data-theme="dark"] .theme-toggle .moon-icon {
    display: none;
}

[data-theme="dark"] .theme-toggle .sun-icon {
    display: block;
}

/* Hamburger & Mobile Nav */
.hamburger {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: #ffffff;
    transform-origin: center;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.hamburger.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

.mobile-nav {
    display: none;
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background-color: var(--bg-tertiary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 24px;
    z-index: 999;
    box-shadow: var(--shadow-lg);
}

.mobile-menu-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.mobile-menu-link {
    display: block;
    font-size: 1.1rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.8);
}

body.mobile-menu-open {
    overflow: hidden;
}

/* Scroll Progress Bar */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: var(--accent-gradient);
    width: 0%;
    z-index: 2000;
    transition: width 0.05s linear;
}

/* Hero Section (Mockup Split screen with Left Sidebar Categories) */
.hero-split-section {
    padding: 180px 0 100px;
    background-color: var(--bg-tertiary);
    color: #ffffff;
    position: relative;
    overflow: hidden;
}

.hero-split-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 60px;
    align-items: center;
}

.hero-left-split {
    display: grid;
    grid-template-columns: 160px 1fr;
    gap: 30px;
}

.hero-sidebar-cats {
    list-style: none;
    border-right: 1px solid rgba(255, 255, 255, 0.15);
    padding-right: 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    justify-content: center;
}

.hero-sidebar-cats li {
    font-size: 1.05rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.6);
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.hero-sidebar-cats li::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    background-color: transparent;
    border: 1px solid rgba(255, 255, 255, 0.4);
    transition: all var(--transition-fast);
}

.hero-sidebar-cats li:hover, .hero-sidebar-cats li.active {
    color: #ffffff;
}

.hero-sidebar-cats li:hover::before, .hero-sidebar-cats li.active::before {
    background-color: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 10px var(--accent);
}

.hero-main-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
}

.hero-title {
    font-size: 2.8rem;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 24px;
    letter-spacing: -0.5px;
}

.hero-desc {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
    margin-bottom: 36px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-right-visual {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    aspect-ratio: 4/3;
}

.hero-right-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.hero-visual-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 50%, rgba(5, 29, 59, 0.6));
}

/* Stats Bar - Centered White Card style below Hero */
.stats-bar-container-outer {
    margin-top: -40px;
    position: relative;
    z-index: 10;
}

.stats-bar-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 30px 40px;
    box-shadow: var(--shadow-lg);
}

.stats-bar-flex {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 30px;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.stat-icon {
    font-size: 1.6rem;
    color: var(--accent);
    background-color: rgba(var(--accent-rgb), 0.08);
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    display: flex;
    justify-content: center;
    align-items: center;
}

.stat-details h4 {
    font-size: 1.15rem;
    font-weight: 800;
}

.stat-details p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Sectors Section */
.sector-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 30px 24px;
    text-align: center;
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow-sm);
}

.sector-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
}

.sector-card-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-color);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.6rem;
    color: var(--accent);
    transition: all var(--transition-fast);
}

.sector-card:hover .sector-card-icon {
    background-color: var(--accent);
    border-color: var(--accent);
    color: #ffffff;
}

/* References Section - Dark Container holding White Cards */
.dark-references-card-outer {
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 80px 60px;
    margin-top: 50px;
    position: relative;
}

.dark-references-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
}

.white-reference-card {
    background-color: #ffffff;
    height: 90px;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 16px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.white-reference-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.white-reference-card img {
    max-height: 100%;
    max-width: 100%;
    object-fit: contain;
    filter: grayscale(1);
    opacity: 0.7;
    transition: all var(--transition-fast);
}

.white-reference-card:hover img {
    filter: grayscale(0);
    opacity: 1;
}

/* Mesleklerimiz Section (Clean Tab Grid Layout) */
.tab-section-container {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 48px;
    margin-top: 50px;
}

.tab-list-sidebar {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.tab-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    background: none;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: var(--font-main);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    background-color: var(--bg-secondary);
}

.tab-btn-content {
    display: flex;
    align-items: center;
    gap: 16px;
}

.tab-btn-content i {
    font-size: 1.2rem;
    width: 20px;
    text-align: center;
}

.tab-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    background-color: var(--bg-primary);
}

.tab-btn.active {
    background-color: var(--accent);
    color: #ffffff;
    border-color: var(--accent);
    box-shadow: 0 4px 12px rgba(var(--accent-rgb), 0.2);
}

.tab-content-panel {
    background-color: var(--bg-primary);
}

.tab-pane {
    display: none;
    animation: fadeIn var(--transition-normal);
}

.tab-pane.active {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 40px;
}

.tab-pane-content-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 40px;
}

.tab-occupations-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.tab-occupations-list li a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

.tab-occupations-list li a:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateX(6px);
}

.tab-pane-visual {
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    aspect-ratio: 4/3;
}

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

/* Footer Section */
.footer {
    background-color: var(--bg-tertiary);
    color: #ffffff;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 80px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
    gap: 40px;
}

.footer-logo img {
    height: 48px;
    margin-bottom: 20px;
    filter: none;
}

.footer-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 24px;
}

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

.social-link {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background-color: rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: center;
    align-items: center;
    color: #ffffff;
    transition: all var(--transition-fast);
}

.social-link:hover {
    background-color: var(--accent);
    transform: translateY(-2px);
}

.footer-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 24px;
    position: relative;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--accent);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: var(--text-muted);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

.footer-links a:hover {
    color: var(--accent);
    padding-left: 4px;
}

.footer-info {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-info-item {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.footer-info-item i {
    color: var(--accent);
    font-size: 1.1rem;
    margin-top: 3px;
}

.footer-info-item span {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.5;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    margin-top: 60px;
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    color: var(--text-muted);
    font-size: 0.85rem;
    flex-wrap: wrap;
    gap: 16px;
}

/* Floating WhatsApp Button */
.whatsapp {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 999;
}

.whatsapp a {
    width: 60px;
    height: 60px;
    background-color: #25d366;
    color: #ffffff;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: var(--radius-full);
    font-size: 2rem;
    box-shadow: 0 8px 24px rgba(37, 211, 102, 0.3);
    transition: all var(--transition-fast);
}

.whatsapp a:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 30px rgba(37, 211, 102, 0.4);
}

.whatsapp .tooltiptext {
    visibility: hidden;
    width: 80px;
    background-color: var(--bg-tertiary);
    color: #fff;
    text-align: center;
    padding: 6px;
    border-radius: var(--radius-sm);
    position: absolute;
    z-index: 1;
    right: 70px;
    top: 15px;
    opacity: 0;
    transition: opacity var(--transition-fast);
    font-size: 0.8rem;
    font-weight: 600;
}

.whatsapp:hover .tooltiptext {
    visibility: visible;
    opacity: 1;
}

/* Page Scroll Animation reveals */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.scroll-reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
    .hero-split-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .hero-right-visual {
        max-width: 500px;
        margin: 0 auto;
    }
    .tab-section-container {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .tab-list-sidebar {
        flex-direction: row;
        overflow-x: auto;
        border-bottom: 1px solid var(--border-color);
        padding-bottom: 16px;
    }
    .tab-btn {
        white-space: nowrap;
        width: auto;
    }
    .tab-pane.active {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .hero-left-split {
        grid-template-columns: 1fr;
    }
    .hero-sidebar-cats {
        flex-direction: row;
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.15);
        padding-right: 0;
        padding-bottom: 16px;
        overflow-x: auto;
    }
    .hero-sidebar-cats li {
        white-space: nowrap;
    }
    .section-padding {
        padding: 60px 0;
    }
    .hero-title {
        font-size: 2.2rem;
    }
    .nav-menu {
        display: none;
    }
    .hamburger {
        display: flex;
    }
    .mobile-nav {
        display: block;
        height: calc(100dvh - 80px);
        overflow-y: auto;
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transform: translateY(-12px);
        transition: opacity var(--transition-fast), visibility var(--transition-fast), transform var(--transition-fast);
    }
    .mobile-nav.active {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: translateY(0);
    }
    .dark-references-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .dark-references-card-outer {
        padding: 40px 20px;
    }
}

@media (max-width: 480px) {
    .dark-references-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .stats-bar-flex {
        flex-direction: column;
    }
}