/* ============================================
   GENEL RESET VE DEĞİŞKENLER
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Dark Mode Renkler - Varsayılan */
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #00d4ff;
    --text-color: #e2e8f0;
    --text-light: #94a3b8;
    --text-lighter: #64748b;
    --bg-color: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: #1e293b;
    --border-color: #334155;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
    --shadow: 0 4px 20px rgba(0,0,0,0.4);
    --shadow-hover: 0 12px 40px rgba(102, 126, 234, 0.3);
    --gradient: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #00d4ff 100%);
    --gradient-alt: linear-gradient(135deg, #00d4ff 0%, #667eea 100%);
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
    width: 100%;
    box-sizing: border-box;
}

/* ============================================
   HEADER
   ============================================ */
.main-header {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: inherit;
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: float 3s ease-in-out infinite;
}

.logo-text h1 {
    font-size: 24px;
    font-weight: 700;
    margin: 0;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-text p {
    font-size: 12px;
    color: var(--text-light);
    margin: 0;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 15px;
}

.nav-link {
    color: var(--text-color);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient);
    transition: width 0.3s ease;
}

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

.nav-link:hover {
    color: var(--primary-color);
    transform: translateY(-2px);
}

/* Theme toggle kaldırıldı - Sadece dark mode kullanılıyor */

/* ============================================
   HERO SECTION
   ============================================ */
.hero-section {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 80px 0 120px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    background: var(--bg-color);
}

.tech-grid {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(102, 126, 234, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(102, 126, 234, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
    opacity: 0.3;
}

[data-theme="dark"] .tech-grid {
    background-image: 
        linear-gradient(rgba(102, 126, 234, 0.2) 1px, transparent 1px),
        linear-gradient(90deg, rgba(102, 126, 234, 0.2) 1px, transparent 1px);
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    animation: fadeInUp 1s ease-out;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    margin-bottom: 30px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-color);
    animation: fadeIn 0.8s ease-out;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-color);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-title {
    font-size: clamp(36px, 6vw, 64px);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
    color: var(--text-color);
}

.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    animation: gradientShift 3s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { filter: hue-rotate(0deg); }
    50% { filter: hue-rotate(20deg); }
}

.hero-description {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    background: var(--gradient);
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    position: relative;
    overflow: hidden;
}

.hero-cta::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.hero-cta:hover::before {
    width: 300px;
    height: 300px;
}

.hero-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.5);
}

.hero-cta span {
    position: relative;
    z-index: 1;
}

.hero-cta svg {
    position: relative;
    z-index: 1;
    transition: transform 0.3s ease;
}

.hero-cta:hover svg {
    transform: translateX(5px);
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.mouse {
    width: 24px;
    height: 40px;
    border: 2px solid var(--text-light);
    border-radius: 15px;
    position: relative;
}

.mouse::before {
    content: '';
    width: 4px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
    0%, 100% { opacity: 1; transform: translateX(-50%) translateY(0); }
    50% { opacity: 0.3; transform: translateX(-50%) translateY(10px); }
}

/* ============================================
   SECTION HEADER
   ============================================ */
.section-header {
    text-align: center;
    margin-bottom: 60px;
    animation: fadeIn 1s ease-out;
}

.section-title {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 12px;
    color: var(--text-color);
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-light);
}

/* ============================================
   BLOG KARTLARI
   ============================================ */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
    align-items: stretch;
    width: 100%;
}

.post-card {
    background: var(--bg-card);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border-color);
    opacity: 0;
    animation: fadeInUp 0.6s ease-out forwards;
    position: relative;
    height: 100%;
    width: 100%;
    box-sizing: border-box;
}

.post-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 0;
}

.post-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-hover);
    border-color: transparent;
}

.post-card:hover::before {
    opacity: 0.05;
}

.post-image {
    width: 100%;
    aspect-ratio: 1 / 1;
    max-height: 220px;
    overflow: hidden;
    background: var(--bg-secondary);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.post-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: block;
}

.post-card:hover .post-image img {
    transform: scale(1.15);
}

.post-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    backdrop-filter: blur(4px);
}

.post-card:hover .post-overlay {
    opacity: 1;
}

.read-now {
    color: white;
    font-weight: 700;
    font-size: 18px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.post-content {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 1;
}

.post-category {
    display: inline-block;
    padding: 6px 12px;
    background: var(--gradient);
    color: white;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
    width: fit-content;
}

.post-title {
    margin-bottom: 12px;
    font-size: 22px;
    line-height: 1.3;
    font-weight: 700;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    min-height: calc(1.3em * 2);
    max-height: calc(1.3em * 2);
}

.post-title a {
    color: var(--text-color);
    text-decoration: none;
    transition: all 0.3s ease;
    display: block;
}

.post-title a:hover {
    color: var(--primary-color);
    transform: translateX(4px);
}

.post-excerpt {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.7;
    font-size: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    max-height: calc(1.7em * 3);
    min-height: calc(1.7em * 1.7);
    flex-shrink: 0;
}

.post-meta {
    display: flex;
    gap: 20px;
    font-size: 13px;
    color: var(--text-lighter);
    margin-bottom: 20px;
    flex-wrap: wrap;
    align-items: center;
}

.post-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.post-meta svg {
    opacity: 0.7;
}

.read-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    width: fit-content;
    padding: 8px 0;
}

.read-more:hover {
    gap: 12px;
    transform: translateX(4px);
}

.read-more svg {
    transition: transform 0.3s ease;
}

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

/* ============================================
   PAGINATION
   ============================================ */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-top: 60px;
    padding: 30px;
}

.pagination-btn {
    background: var(--bg-card);
    color: var(--text-color);
    padding: 12px 24px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.pagination-btn:hover {
    background: var(--gradient);
    color: white;
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.pagination-info {
    color: var(--text-light);
    font-weight: 500;
    padding: 0 20px;
}

/* ============================================
   FOOTER
   ============================================ */
.main-footer {
    background: var(--bg-card);
    color: var(--text-color);
    text-align: center;
    padding: 40px 0;
    margin-top: 80px;
    border-top: 1px solid var(--border-color);
}

/* ============================================
   NO POSTS
   ============================================ */
.no-posts {
    text-align: center;
    padding: 100px 20px;
    background: var(--bg-card);
    border-radius: 20px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.no-posts-icon {
    font-size: 64px;
    margin-bottom: 20px;
    animation: float 3s ease-in-out infinite;
}

.no-posts h2 {
    font-size: 32px;
    margin-bottom: 12px;
    color: var(--text-color);
}

.no-posts p {
    color: var(--text-light);
    font-size: 18px;
}

/* ============================================
   BLOG DETAY SAYFASI
   ============================================ */
.blog-post {
    background: var(--bg-card);
    border-radius: 20px;
    padding: 50px;
    box-shadow: var(--shadow);
    margin-bottom: 40px;
    border: 1px solid var(--border-color);
    animation: fadeIn 0.6s ease-out;
}

.post-header {
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 2px solid var(--border-color);
}

.post-title-main {
    font-size: clamp(32px, 5vw, 48px);
    margin-bottom: 20px;
    line-height: 1.2;
    color: var(--text-color);
    font-weight: 800;
}

.post-meta-main {
    display: flex;
    gap: 24px;
    font-size: 15px;
    color: var(--text-light);
    flex-wrap: wrap;
}

.post-meta-main span {
    display: flex;
    align-items: center;
    gap: 8px;
}

.featured-image {
    margin: 40px 0;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

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

.post-content-main {
    font-size: 18px;
    line-height: 1.9;
    color: var(--text-color);
    margin: 40px 0;
}

.post-content-main p {
    margin-bottom: 24px;
}

.post-content-main img {
    max-width: 100%;
    height: auto;
    border-radius: 15px;
    margin: 30px 0;
    box-shadow: var(--shadow);
}

.post-content-main video {
    max-width: 100%;
    height: auto;
    border-radius: 15px;
    margin: 30px 0;
    box-shadow: var(--shadow);
    background: var(--bg-secondary);
}

.post-content-main video:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.post-content-main h2,
.post-content-main h3 {
    margin-top: 40px;
    margin-bottom: 20px;
    color: var(--text-color);
    font-weight: 700;
}

/* İndirme butonları için özel stil */
.post-content-main a[download] {
    display: inline-block;
    padding: 12px 24px;
    background: var(--gradient);
    color: white !important;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
    margin: 10px 5px;
}

.post-content-main a[download]:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.download-section {
    margin-top: 50px;
    padding: 35px;
    background: var(--bg-secondary);
    border-radius: 15px;
    border: 1px solid var(--border-color);
}

.download-section h2 {
    margin-bottom: 25px;
    color: var(--text-color);
    font-weight: 700;
}

.files-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.file-item-download {
    background: var(--bg-card);
    padding: 20px;
    border-radius: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.file-item-download:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow);
}

.btn-download {
    background: var(--gradient);
    color: white;
    padding: 12px 25px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    white-space: nowrap;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.post-footer {
    margin-top: 50px;
    padding-top: 30px;
    border-top: 2px solid var(--border-color);
}

.btn-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    padding: 12px 20px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
}

.btn-back:hover {
    transform: translateX(-5px);
    background: var(--bg-secondary);
}

/* ============================================
   ANIMASYONLAR
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* ============================================
   SCROLL BAR
   ============================================ */
::-webkit-scrollbar {
    width: 12px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--gradient);
    border-radius: 6px;
}

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

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    .posts-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .post-image {
        aspect-ratio: 1 / 1;
        max-height: 200px;
    }
    
    .container {
        padding: 0 20px;
    }
    
    .hero-section {
        min-height: 70vh;
        padding: 60px 0 80px;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-description {
        font-size: 16px;
    }
    
    .hero-description br {
        display: none;
    }
    
    .blog-post {
        padding: 30px 20px;
    }
    
    .post-title-main {
        font-size: 28px;
    }
    
    .header-content {
        flex-direction: column;
    }
    
    .file-item-download {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .section-title {
        font-size: 32px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .posts-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .post-image {
        aspect-ratio: 1 / 1;
        max-height: 180px;
    }
    
    .hero-cta {
        padding: 14px 28px;
        font-size: 14px;
    }
    
    .post-card {
        border-radius: 15px;
    }
    
    .post-content {
        padding: 20px;
    }
}