/**
 * Onkoloji Web Sitesi - Ana Stil Dosyası
 * Profesyonel ve Modern Tasarım
 */

/* ===== CSS VARIABLES ===== */
:root {
    /* Ana Renkler - Soft Palet (Pembe/Gri/Lacivert) */
    --primary-color: #1e3a5f;
    /* Lacivert */
    --primary-light: #2d4a6f;
    --primary-dark: #0f2744;
    --accent-color: #e91e8c;
    /* Pembe/Magenta */
    --accent-light: #f472b6;
    --secondary-color: #3182ce;
    /* Mavi */
    --secondary-light: #63b3ed;

    /* Kategori Renkleri */
    --meme-kanseri: #e91e8c;
    /* Pembe - Meme kanseri simgesi */
    --jinekolojik: #8b5cf6;
    /* Mor */
    --tedavi: #3182ce;
    /* Mavi */
    --genetik: #10b981;
    /* Yeşil */
    --korunma: #f59e0b;
    /* Turuncu */
    --beslenme: #22c55e;
    /* Açık yeşil */
    --blog: #6366f1;
    /* İndigo */

    /* Nötr Renkler */
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;

    /* Tipografi */
    --font-primary: 'Poppins', sans-serif;
    --font-secondary: 'Open Sans', sans-serif;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 50%;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;

    /* Layout */
    --header-height: 80px;
    --top-bar-height: 40px;
    --container-width: 1280px;
    --sidebar-width: 320px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-secondary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--gray-50);
    overflow-x: hidden;
}

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

a:hover {
    color: var(--accent-color);
}

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

ul,
ol {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

input,
textarea,
select {
    font-family: inherit;
    font-size: inherit;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-primary);
    font-weight: 600;
    line-height: 1.3;
    color: var(--gray-800);
}

/* ===== UTILITY CLASSES ===== */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section {
    padding: var(--spacing-3xl) 0;
}

.section-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.section-title::after {
    content: '';
    flex: 1;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-color), transparent);
}

.section-title a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--accent-color);
    margin-left: auto;
    white-space: nowrap;
}

.section-title a:hover {
    color: var(--primary-color);
}

.flex {
    display: flex;
}

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.grid {
    display: grid;
}

.text-center {
    text-align: center;
}

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

.text-accent {
    color: var(--accent-color);
}

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

.bg-white {
    background-color: var(--white);
}

/* ===== TOP BAR ===== */
.top-bar {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    color: var(--white);
    height: var(--top-bar-height);
    font-size: 0.875rem;
}

.top-bar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.top-bar-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: rgba(255, 255, 255, 0.9);
    transition: color var(--transition-fast);
}

.top-bar-item:hover {
    color: var(--white);
}

.top-bar-item i {
    font-size: 0.75rem;
    color: var(--accent-light);
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-links a {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    color: var(--white);
    font-size: 0.75rem;
    transition: all var(--transition-fast);
}

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

/* ===== HEADER ===== */
.header {
    background: var(--white);
    height: var(--header-height);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.header.scrolled {
    height: 64px;
    box-shadow: var(--shadow-lg);
}

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

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.logo-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--primary-color) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
}

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

.logo-title {
    font-family: var(--font-primary);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1.2;
}

.logo-subtitle {
    font-size: 0.75rem;
    color: var(--gray-500);
    font-weight: 500;
}

/* Navigation */
.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-primary);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--gray-700);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-color);
    background: var(--gray-100);
}

.nav-link i {
    font-size: 0.75rem;
    transition: transform var(--transition-fast);
}

.nav-item:hover .nav-link i {
    transform: rotate(180deg);
}

/* Dropdown Menu */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 240px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-sm);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-normal);
    z-index: 100;
}

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

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    color: var(--gray-700);
    transition: all var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--gray-100);
    color: var(--accent-color);
}

.dropdown-item i {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
}

.dropdown-item span {
    font-weight: 500;
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.search-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    border-radius: var(--radius-full);
    color: var(--gray-600);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.search-btn:hover {
    background: var(--accent-color);
    color: var(--white);
}

.btn-appointment {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-light) 100%);
    color: var(--white);
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.875rem;
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 15px rgba(56, 161, 105, 0.3);
    transition: all var(--transition-fast);
}

.btn-appointment:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(56, 161, 105, 0.4);
    color: var(--white);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    border-radius: var(--radius-md);
    color: var(--gray-700);
    font-size: 1.25rem;
}

/* ===== HERO SECTION ===== */
.hero-section {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-lg);
}

.featured-card {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: var(--white);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
}

.featured-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.featured-card-main {
    height: 450px;
}

.featured-card-small {
    height: 215px;
}

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

.featured-card:hover .featured-card-image {
    transform: scale(1.05);
}

.featured-card-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-xl);
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0.5) 50%, transparent 100%);
    color: var(--white);
}

.featured-card-small .featured-card-overlay {
    padding: var(--spacing-lg);
}

.featured-card-category {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--accent-color);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-sm);
}

.featured-card-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
}

.featured-card-small .featured-card-title {
    font-size: 1rem;
}

.featured-card-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
}

.featured-card-meta span {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.featured-side {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* ===== SECTION: ARTICLES ===== */
.articles-section {
    background: var(--white);
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

/* Article Card */
.article-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 1px solid var(--gray-200);
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--accent-color);
}

.article-card-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.article-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.article-card:hover .article-card-image img {
    transform: scale(1.1);
}

.article-card-category {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--white);
    text-transform: uppercase;
}

.article-card-content {
    padding: var(--spacing-lg);
}

.article-card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-card-excerpt {
    font-size: 0.9375rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-md);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--gray-200);
}

.article-card-date {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.8125rem;
    color: var(--gray-500);
}

.article-card-views {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.8125rem;
    color: var(--gray-500);
}

.read-more {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--accent-color);
    font-weight: 500;
    font-size: 0.875rem;
}

.read-more i {
    transition: transform var(--transition-fast);
}

.read-more:hover i {
    transform: translateX(4px);
}

/* ===== CATEGORY CARDS ===== */
.category-section {
    padding: var(--spacing-2xl) 0;
}

.category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--gray-200);
}

.category-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: 1.5rem;
    font-weight: 700;
}

.category-title i {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    color: var(--white);
}

.category-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--accent-color);
    font-weight: 500;
}

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

/* ===== VIDEO SECTION ===== */
.video-section {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    color: var(--white);
}

.video-section .section-title {
    color: var(--white);
}

.video-section .section-title::after {
    background: linear-gradient(90deg, var(--accent-light), transparent);
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.video-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--white);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
}

.video-card:hover {
    transform: translateY(-5px) scale(1.02);
}

.video-thumbnail {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
}

.video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 64px;
    height: 64px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-color);
    font-size: 1.5rem;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-fast);
}

.video-card:hover .video-play-btn {
    background: var(--accent-color);
    color: var(--white);
    transform: translate(-50%, -50%) scale(1.1);
}

.video-info {
    padding: var(--spacing-lg);
    color: var(--gray-800);
}

.video-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ===== SIDEBAR ===== */
.main-content-wrapper {
    display: grid;
    grid-template-columns: 1fr var(--sidebar-width);
    gap: var(--spacing-2xl);
}

.sidebar {
    position: sticky;
    top: calc(var(--header-height) + var(--spacing-lg));
}

.sidebar-widget {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

.widget-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--gray-200);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.widget-title i {
    color: var(--accent-color);
}

/* Popular Posts Widget */
.popular-post-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--gray-100);
}

.popular-post-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.popular-post-item:first-child {
    padding-top: 0;
}

.popular-post-image {
    width: 80px;
    height: 60px;
    border-radius: var(--radius-md);
    overflow: hidden;
    flex-shrink: 0;
}

.popular-post-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.popular-post-content h4 {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: var(--spacing-xs);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--transition-fast);
}

.popular-post-item:hover h4 {
    color: var(--accent-color);
}

.popular-post-date {
    font-size: 0.8125rem;
    color: var(--gray-500);
}

/* Categories Widget */
.category-list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    margin-bottom: var(--spacing-xs);
    background: var(--gray-50);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.category-list-item:hover {
    background: var(--accent-color);
    color: var(--white);
}

.category-list-item i {
    margin-right: var(--spacing-sm);
}

.category-count {
    background: var(--gray-200);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.category-list-item:hover .category-count {
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
}

/* ===== ABOUT BANNER ===== */
.about-banner {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: var(--spacing-3xl) 0;
    position: relative;
    overflow: hidden;
}

.about-banner::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="80" cy="20" r="40" fill="rgba(255,255,255,0.03)"/><circle cx="20" cy="80" r="60" fill="rgba(255,255,255,0.02)"/></svg>');
    background-size: cover;
}

.about-banner-content {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.about-banner-image {
    width: 200px;
    height: 200px;
    border-radius: var(--radius-full);
    overflow: hidden;
    border: 4px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-xl);
}

.about-banner-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-banner-text h2 {
    font-size: 2rem;
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.about-banner-text .subtitle {
    font-size: 1.125rem;
    color: var(--accent-light);
    margin-bottom: var(--spacing-lg);
}

.about-banner-text p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.btn-about {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--white);
    color: var(--primary-color);
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.btn-about:hover {
    background: var(--accent-light);
    color: var(--primary-dark);
    transform: translateY(-2px);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--gray-900);
    color: var(--gray-400);
    padding-top: var(--spacing-3xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 1px solid var(--gray-800);
}

.footer-brand {
    padding-right: var(--spacing-xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.footer-logo-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--primary-light) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
}

.footer-logo-text {
    font-family: var(--font-primary);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--white);
}

.footer-description {
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-800);
    border-radius: var(--radius-md);
    color: var(--gray-400);
    transition: all var(--transition-fast);
}

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

.footer-title {
    font-family: var(--font-primary);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--spacing-lg);
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: var(--gray-400);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: all var(--transition-fast);
}

.footer-links a:hover {
    color: var(--accent-light);
    padding-left: var(--spacing-sm);
}

.footer-links a i {
    font-size: 0.75rem;
    color: var(--accent-color);
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.footer-contact i {
    width: 20px;
    color: var(--accent-color);
    margin-top: 4px;
}

.footer-bottom {
    padding: var(--spacing-lg) 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.875rem;
}

.footer-bottom a {
    color: var(--accent-light);
}

/* ===== BACK TO TOP ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--accent-color);
    color: var(--white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-normal);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--primary-color);
    transform: translateY(-5px);
}

/* ===== SEARCH MODAL ===== */
.search-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 9999;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 15vh;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

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

.search-modal-content {
    width: 100%;
    max-width: 700px;
    padding: 0 var(--spacing-lg);
    transform: translateY(-30px);
    transition: transform var(--transition-normal);
}

.search-modal.active .search-modal-content {
    transform: translateY(0);
}

.search-modal-close {
    position: absolute;
    top: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
    transition: transform var(--transition-fast);
}

.search-modal-close:hover {
    transform: rotate(90deg);
}

.search-form {
    display: flex;
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.search-form input {
    flex: 1;
    padding: var(--spacing-lg) var(--spacing-xl);
    border: none;
    font-size: 1.25rem;
    outline: none;
}

.search-form button {
    padding: var(--spacing-lg) var(--spacing-xl);
    background: var(--accent-color);
    color: var(--white);
    font-size: 1.25rem;
    transition: background var(--transition-fast);
}

.search-form button:hover {
    background: var(--primary-color);
}

/* ===== PAGE HEADER ===== */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.8);
}

.breadcrumb a {
    color: var(--accent-light);
}

.breadcrumb a:hover {
    color: var(--white);
}

/* ===== ARTICLE DETAIL ===== */
.article-detail {
    padding: var(--spacing-2xl) 0;
}

.article-header {
    margin-bottom: var(--spacing-xl);
}

.article-category-tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--white);
    text-transform: uppercase;
    margin-bottom: var(--spacing-md);
}

.article-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-lg);
    line-height: 1.3;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--gray-200);
    border-bottom: 1px solid var(--gray-200);
    color: var(--gray-500);
    font-size: 0.9375rem;
}

.article-meta span {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.article-featured-image {
    margin-bottom: var(--spacing-xl);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.article-featured-image img {
    width: 100%;
    height: auto;
}

.article-content {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--gray-700);
}

.article-content h2 {
    font-size: 1.75rem;
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-lg);
}

.article-content h3 {
    font-size: 1.375rem;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.article-content p {
    margin-bottom: var(--spacing-lg);
}

.article-content ul,
.article-content ol {
    margin-bottom: var(--spacing-lg);
    padding-left: var(--spacing-xl);
}

.article-content li {
    margin-bottom: var(--spacing-sm);
    list-style: disc;
}

.article-content ol li {
    list-style: decimal;
}

.article-content img {
    border-radius: var(--radius-lg);
    margin: var(--spacing-lg) 0;
}

.article-content blockquote {
    border-left: 4px solid var(--accent-color);
    padding-left: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    font-style: italic;
    color: var(--gray-600);
}

/* ===== PAGINATION ===== */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-2xl);
}

.pagination a,
.pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 var(--spacing-md);
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-weight: 500;
    color: var(--gray-700);
    transition: all var(--transition-fast);
}

.pagination a:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: var(--white);
}

.pagination .active {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: var(--white);
}

.pagination .disabled {
    opacity: 0.5;
    pointer-events: none;
}

/* ===== CONTACT FORM ===== */
.contact-form {
    background: var(--white);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--spacing-sm);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-color);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.btn-submit {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-2xl);
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--primary-color) 100%);
    color: var(--white);
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 1rem;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ===== LOADING ANIMATION ===== */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--gray-200);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1200px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .main-content-wrapper {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: static;
    }
}

@media (max-width: 992px) {
    .hero-grid {
        grid-template-columns: 1fr;
    }

    .featured-card-main {
        height: 350px;
    }

    .featured-side {
        flex-direction: row;
    }

    .featured-card-small {
        height: 200px;
    }

    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .video-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-banner-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .about-banner-image {
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }

    .top-bar {
        display: none;
    }

    .nav-menu {
        display: none;
    }

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

    .btn-appointment span {
        display: none;
    }

    .featured-side {
        flex-direction: column;
    }

    .articles-grid {
        grid-template-columns: 1fr;
    }

    .video-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }

    .article-title {
        font-size: 1.75rem;
    }

    .page-header h1 {
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .featured-card-main {
        height: 280px;
    }

    .featured-card-title {
        font-size: 1.25rem;
    }

    .section {
        padding: var(--spacing-2xl) 0;
    }

    .section-title {
        font-size: 1.375rem;
    }
}

/* ===== PRINT STYLES ===== */
@media print {

    .top-bar,
    .header,
    .footer,
    .sidebar,
    .back-to-top,
    .search-modal {
        display: none !important;
    }

    .article-content {
        font-size: 12pt;
    }
}

/* ===== VIDEO CAROUSEL (Sola Kayan Kartlar) ===== */
.video-carousel-section {
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
    padding: var(--spacing-xl) 0;
    overflow: hidden;
}

.video-carousel-container {
    width: 100%;
    overflow: hidden;
    position: relative;
}

.video-carousel-track {
    display: flex;
    gap: 1.5rem;
    animation: carousel-scroll 30s linear infinite;
    width: max-content;
}

.video-carousel-track:hover {
    animation-play-state: paused;
}

@keyframes carousel-scroll {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-33.333%);
    }
}

.video-carousel-card {
    flex-shrink: 0;
    width: 280px;
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid var(--gray-200);
}

.video-carousel-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: var(--shadow-xl);
    border-color: var(--accent-color);
}

.video-carousel-thumb {
    position: relative;
    height: 160px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
}

.video-carousel-thumb img,
.video-carousel-thumb video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.video-carousel-card:hover .video-carousel-thumb img,
.video-carousel-card:hover .video-carousel-thumb video {
    transform: scale(1.1);
}

.video-carousel-play {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 50px;
    height: 50px;
    background: var(--accent-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.video-carousel-card:hover .video-carousel-play {
    background: var(--secondary-color);
    transform: translate(-50%, -50%) scale(1.1);
}

.video-carousel-info {
    padding: 1rem;
}

.video-carousel-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--gray-800);
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-carousel-badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    background: var(--accent-color);
    color: white;
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    border-radius: 3px;
    margin-bottom: 0.5rem;
}

@media (max-width: 768px) {
    .video-carousel-card {
        width: 240px;
    }

    .video-carousel-thumb {
        height: 140px;
    }

    .video-carousel-track {
        gap: 1rem;
    }
}