/* ===== RESET & BASE ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* ─── Mavi Tik Medya Renk Paleti ─── */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-card: #ffffff;
    --bg-glass: rgba(255, 255, 255, 0.88);
    --bg-dark: #0f172a;
    --bg-dark-secondary: #1e293b;

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    --text-on-dark: #e2e8f0;
    --text-on-accent: #ffffff;

    --accent-primary: #0052cc;
    --accent-secondary: #1d4ed8;
    --accent-hover: #2563eb;
    --accent-light: #eff6ff;
    --accent-gradient: linear-gradient(135deg, #0052cc, #1d4ed8, #2563eb);

    --green-accent: #25d366;

    --border-color: #e2e8f0;
    --border-hover: #cbd5e1;
    --border-accent: rgba(0, 82, 204, 0.2);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-card: 0 4px 16px rgba(0, 0, 0, 0.06);
    --shadow-card-hover: 0 12px 40px rgba(0, 82, 204, 0.12);
    --shadow-modal: 0 24px 80px rgba(0, 0, 0, 0.25);
    --shadow-btn: 0 4px 14px rgba(0, 82, 204, 0.25);

    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

    --font-main: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
}

html {
    scroll-behavior: smooth;
}

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

/* ================================================================
   NAVBAR
   ================================================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    height: 72px;
    transition: var(--transition-normal);
}

.navbar.scrolled {
    box-shadow: var(--shadow-card);
}

.navbar-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    flex-shrink: 0;
}

.brand-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: var(--shadow-btn);
    transition: var(--transition-fast);
}

.navbar-brand:hover .brand-icon {
    transform: scale(1.05);
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.brand-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent-primary);
    line-height: 1.2;
}

.brand-tagline {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-weight: 500;
    letter-spacing: 0.02em;
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    padding: 8px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    white-space: nowrap;
}

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

.nav-link.active {
    color: var(--accent-primary);
    background: var(--accent-light);
    font-weight: 600;
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.social-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
    background: var(--bg-tertiary);
}

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

.social-icon.whatsapp-icon:hover {
    color: var(--green-accent);
    background: rgba(37, 211, 102, 0.1);
}

.cta-btn {
    padding: 9px 22px;
    background: var(--accent-gradient);
    color: white;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    box-shadow: var(--shadow-btn);
    white-space: nowrap;
}

.cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 82, 204, 0.35);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-fast);
}

.mobile-menu-btn.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.open span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ================================================================
   HERO
   ================================================================ */
.hero {
    position: relative;
    padding: 140px 32px 60px;
    text-align: center;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.hero-content {
    max-width: 700px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.hero-title-line {
    display: block;
}

.hero-title-accent {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto 36px;
    font-weight: 400;
}

.hero-stats {
    display: inline-flex;
    align-items: center;
    gap: 32px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 20px 40px;
    box-shadow: var(--shadow-card);
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent-primary);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border-color);
}

/* ================================================================
   FILTER SECTION
   ================================================================ */
.filter-section {
    position: sticky;
    top: 72px;
    z-index: 50;
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    padding: 14px 32px;
}

.filter-container {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.filter-tabs {
    display: flex;
    gap: 6px;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.filter-tabs::-webkit-scrollbar {
    display: none;
}

.filter-btn {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 9px 18px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-secondary);
    font-size: 0.82rem;
    font-weight: 500;
    border-radius: 100px;
    cursor: pointer;
    transition: var(--transition-fast);
    font-family: var(--font-main);
    white-space: nowrap;
}

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

.filter-btn.active {
    color: var(--text-on-accent);
    background: var(--accent-gradient);
    border-color: transparent;
    box-shadow: var(--shadow-btn);
}

.filter-btn.active svg {
    stroke: white;
}

.search-box {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 100px;
    padding: 9px 18px;
    transition: var(--transition-fast);
    flex-shrink: 0;
}

.search-box:focus-within {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(0, 82, 204, 0.1);
}

.search-box svg {
    color: var(--text-muted);
    flex-shrink: 0;
}

.search-box input {
    background: none;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 0.88rem;
    width: 160px;
    font-family: var(--font-main);
}

.search-box input::placeholder {
    color: var(--text-light);
}

/* ================================================================
   GALLERY
   ================================================================ */
.gallery-section {
    padding: 40px 32px 80px;
    max-width: 1320px;
    margin: 0 auto;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 24px;
}

/* ================================================================
   VIDEO CARD
   ================================================================ */
.video-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
    opacity: 0;
    transform: translateY(30px);
    animation: cardFadeIn 0.6s ease forwards;
}

.video-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-accent);
    box-shadow: var(--shadow-card-hover);
}

@keyframes cardFadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.video-card:nth-child(1) { animation-delay: 0.05s; }
.video-card:nth-child(2) { animation-delay: 0.1s; }
.video-card:nth-child(3) { animation-delay: 0.15s; }
.video-card:nth-child(4) { animation-delay: 0.2s; }
.video-card:nth-child(5) { animation-delay: 0.25s; }
.video-card:nth-child(6) { animation-delay: 0.3s; }
.video-card:nth-child(7) { animation-delay: 0.35s; }
.video-card:nth-child(8) { animation-delay: 0.4s; }
.video-card:nth-child(9) { animation-delay: 0.45s; }

.card-thumbnail {
    position: relative;
    width: 100%;
    padding-top: 56.25%;
    background: var(--bg-tertiary);
    overflow: hidden;
}

.card-thumbnail video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.video-card:hover .card-thumbnail video {
    transform: scale(1.05);
}

.card-play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-normal);
    opacity: 0;
    box-shadow: var(--shadow-btn);
}

.video-card:hover .card-play-btn {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.card-play-btn svg {
    color: white;
    margin-left: 3px;
}

.card-duration {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: rgba(15, 23, 42, 0.8);
    color: white;
    padding: 3px 8px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
}

.card-category-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    background: var(--accent-gradient);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.card-info {
    padding: 20px;
}

.card-title {
    font-size: 1.02rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-primary);
    transition: var(--transition-fast);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-card:hover .card-title {
    color: var(--accent-primary);
}

.card-description {
    font-size: 0.84rem;
    color: var(--text-secondary);
    margin-bottom: 14px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.5;
}

.card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 14px;
    border-top: 1px solid var(--border-color);
}

.card-date {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-weight: 500;
}

.card-tag {
    font-size: 0.72rem;
    color: var(--accent-secondary);
    background: var(--accent-light);
    padding: 4px 10px;
    border-radius: 20px;
    font-weight: 600;
}

/* ================================================================
   EMPTY STATE
   ================================================================ */
.empty-state {
    text-align: center;
    padding: 100px 40px;
    color: var(--text-muted);
}

.empty-state svg {
    opacity: 0.15;
    margin-bottom: 24px;
    color: var(--accent-primary);
}

.empty-state h2 {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
    font-weight: 600;
}

.empty-state p {
    font-size: 0.95rem;
}

.empty-state code {
    background: var(--accent-light);
    color: var(--accent-primary);
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 0.9rem;
}

/* ================================================================
   MODAL
   ================================================================ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    max-width: 960px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-modal);
    transform: scale(0.92) translateY(20px);
    transition: var(--transition-normal);
}

.modal-overlay.active .modal {
    transform: scale(1) translateY(0);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    border: none;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(8px);
    border-radius: 50%;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
    z-index: 10;
    box-shadow: var(--shadow-sm);
}

.modal-close:hover {
    background: var(--accent-light);
    color: var(--accent-primary);
    transform: rotate(90deg);
}

.modal-video-container {
    position: relative;
    width: 100%;
    background: var(--bg-dark);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    overflow: hidden;
}

.modal-video-container video {
    width: 100%;
    display: block;
    max-height: 540px;
}

.modal-info {
    padding: 28px 32px;
}

.modal-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.modal-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 20px;
    line-height: 1.6;
}

.modal-meta {
    display: flex;
    align-items: center;
    gap: 12px;
}

.modal-category {
    background: var(--accent-gradient);
    color: white;
    padding: 5px 14px;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.modal-date {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ================================================================
   FOOTER
   ================================================================ */
.site-footer {
    background: var(--bg-dark);
    color: var(--text-on-dark);
}

.footer-main {
    padding: 60px 0 40px;
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.footer-brand .brand-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
}

.footer-brand .brand-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: white;
}

.footer-about {
    font-size: 0.88rem;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 10px;
}

.footer-social-link {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-dark-secondary);
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-social-link:hover {
    background: var(--accent-primary);
    color: white;
    transform: translateY(-3px);
}

.footer-social-link.whatsapp:hover {
    background: var(--green-accent);
}

.footer-heading {
    font-size: 0.95rem;
    font-weight: 700;
    color: white;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 12px;
}

.footer-heading::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--accent-gradient);
    border-radius: 2px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 0.88rem;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: white;
    padding-left: 6px;
}

.footer-contact {
    list-style: none;
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
    color: var(--text-light);
    font-size: 0.88rem;
}

.footer-contact li svg {
    flex-shrink: 0;
    color: var(--accent-hover);
}

.footer-contact a {
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-contact a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid var(--bg-dark-secondary);
    padding: 20px 0;
}

.footer-bottom .footer-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.footer-bottom p {
    font-size: 0.82rem;
    color: var(--text-muted);
}

.footer-legal {
    display: flex;
    gap: 24px;
}

.footer-legal a {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-legal a:hover {
    color: white;
}

/* ================================================================
   SCROLLBAR
   ================================================================ */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-hover);
}

/* ================================================================
   RESPONSIVE
   ================================================================ */
@media (max-width: 1100px) {
    .navbar-menu {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .navbar-menu.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--bg-primary);
        border-bottom: 1px solid var(--border-color);
        padding: 16px 32px;
        box-shadow: var(--shadow-card);
    }

    .filter-tabs {
        overflow-x: auto;
    }
}

@media (max-width: 900px) {
    .footer-container {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .hero-title {
        font-size: 2.8rem;
    }
}

@media (max-width: 768px) {
    .navbar-container {
        padding: 0 20px;
    }

    .navbar-actions .cta-btn {
        display: none;
    }

    .hero {
        padding: 120px 20px 50px;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-subtitle {
        font-size: 0.95rem;
    }

    .hero-stats {
        padding: 16px 28px;
        gap: 24px;
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .filter-section {
        padding: 12px 16px;
    }

    .filter-btn {
        padding: 7px 14px;
        font-size: 0.78rem;
    }

    .filter-btn svg {
        display: none;
    }

    .search-box input {
        width: 100px;
    }

    .gallery-section {
        padding: 24px 16px 60px;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .modal {
        border-radius: var(--radius-lg);
    }

    .modal-video-container {
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    }

    .modal-info {
        padding: 20px;
    }

    .footer-container {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .footer-bottom .footer-container {
        flex-direction: column;
        text-align: center;
    }

    .footer-legal {
        flex-wrap: wrap;
        justify-content: center;
        gap: 12px;
    }
}