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

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #1a1a1a;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background-attachment: fixed;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #5a67d8, #6b46c1);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    z-index: 1000;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 32px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo-link {
    text-decoration: none;
    font-size: 1.75rem;
    font-weight: 800;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all 0.3s ease;
    position: relative;
}

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

.logo-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    transition: width 0.3s ease;
}

.logo-link:hover::after {
    width: 100%;
}

.logo-text {
    color: #667eea;
}

.logo-live {
    color: #764ba2;
}

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

.nav-link {
    text-decoration: none;
    color: #4a5568;
    font-weight: 600;
    font-size: 0.95rem;
    position: relative;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 8px 16px;
    border-radius: 8px;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 8px;
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: -1;
}

.nav-link:hover::before {
    opacity: 0.1;
    transform: scale(1);
}

.nav-link:hover {
    color: #667eea;
    transform: translateY(-2px);
}

.admin-link {
    background: linear-gradient(135deg, #fbbf24, #f59e0b) !important;
    color: #1f2937 !important;
    font-weight: 700 !important;
    border-radius: 20px !important;
    padding: 8px 16px !important;
    margin-left: 1rem !important;
}

.admin-link:hover {
    background: linear-gradient(135deg, #f59e0b, #d97706) !important;
    transform: translateY(-2px) scale(1.05) !important;
    box-shadow: 0 8px 24px rgba(251, 191, 36, 0.4) !important;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: #374151;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    padding: 140px 0 100px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    overflow: hidden;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><radialGradient id="a" cx="50%" cy="50%" r="50%"><stop offset="0%" stop-color="rgba(255,255,255,0.1)"/><stop offset="100%" stop-color="rgba(255,255,255,0)"/></radialGradient></defs><circle cx="200" cy="200" r="100" fill="url(%23a)"/><circle cx="800" cy="300" r="150" fill="url(%23a)"/><circle cx="400" cy="700" r="120" fill="url(%23a)"/></svg>');
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 2rem;
    background: linear-gradient(135deg, #ffffff 0%, #f0f9ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: slideInUp 1s ease-out;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.highlight {
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    border-radius: 2px;
    animation: underline 2s ease-in-out infinite;
}

@keyframes underline {
    0%, 100% { transform: scaleX(1); }
    50% { transform: scaleX(1.1); }
}

.hero-description {
    font-size: 1.375rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    line-height: 1.7;
    animation: slideInUp 1s ease-out 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    animation: slideInUp 1s ease-out 0.4s both;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    min-width: 160px;
    text-align: center;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    color: #1f2937;
    box-shadow: 0 8px 32px rgba(251, 191, 36, 0.3);
}

.btn-primary:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 12px 48px rgba(251, 191, 36, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 12px 48px rgba(255, 255, 255, 0.2);
}

/* Code Animation */
.code-animation {
    background: #1f2937;
    padding: 2rem;
    border-radius: 12px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 1.1rem;
    line-height: 1.6;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.code-line {
    margin-bottom: 0.5rem;
}

.code-line.indent {
    padding-left: 2rem;
}

.code-keyword {
    color: #f472b6;
}

.code-variable {
    color: #60a5fa;
}

.code-operator {
    color: #fbbf24;
}

.code-string {
    color: #34d399;
}

.code-function {
    color: #a78bfa;
}

.code-bracket {
    color: #fbbf24;
}

/* Ad Container Styles */
.ad-container {
    margin: 3rem 0;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.ad-banner {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border: 2px solid #e2e8f0;
    border-radius: 16px;
    padding: 2rem;
    min-height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    max-width: 728px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.ad-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.1), transparent);
    transition: left 0.6s;
}

.ad-banner:hover::before {
    left: 100%;
}

.ad-banner:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.15);
    border-color: #667eea;
}

.ad-top .ad-banner {
    max-width: 728px;
    min-height: 90px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
}

.ad-middle .ad-banner {
    max-width: 300px;
    min-height: 250px;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    border: none;
}

.ad-sidebar .ad-banner {
    max-width: 300px;
    min-height: 250px;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    color: white;
    border: none;
}

/* Ad Labels */
.ad-container::after {
    content: 'Advertisement';
    position: absolute;
    top: -8px;
    right: 16px;
    background: #667eea;
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    z-index: 1;
}

/* Sticky Sidebar Ad */
.sticky-ad-sidebar {
    position: fixed;
    top: 50%;
    right: 20px;
    transform: translateY(-50%);
    z-index: 999;
    display: none;
}

.ad-sticky .ad-banner {
    max-width: 160px;
    min-height: 600px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    writing-mode: vertical-rl;
    text-orientation: mixed;
}

.ad-inline .ad-banner {
    max-width: 728px;
    min-height: 90px;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    border: none;
}

/* Dark Mode Toggle */
.dark-mode-toggle {
    position: fixed;
    top: 50%;
    left: 20px;
    transform: translateY(-50%);
    z-index: 1000;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(102, 126, 234, 0.3);
    border-radius: 50px;
    padding: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.dark-mode-toggle:hover {
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.15);
}

.dark-mode-toggle svg {
    width: 24px;
    height: 24px;
    color: #667eea;
    transition: all 0.3s ease;
}

.dark-mode-toggle:hover svg {
    color: #764ba2;
    transform: rotate(180deg);
}

/* Dark Mode Styles */
body.dark-mode {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #e2e8f0;
}

body.dark-mode .header {
    background: rgba(26, 26, 46, 0.95);
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

body.dark-mode .featured-posts {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
}

body.dark-mode .post-card {
    background: #1e293b;
    border-color: rgba(255, 255, 255, 0.1);
}

body.dark-mode .tutorials {
    background: #0f172a;
}

body.dark-mode .about {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
}

body.dark-mode .newsletter {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

body.dark-mode .footer {
    background: #0f172a;
}

/* Featured Posts */
.featured-posts {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
}

.featured-posts::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(102,126,234,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.5;
}

.section-title {
    font-size: 3rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 4rem;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    z-index: 2;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 2px;
}

.posts-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 2.5rem;
    margin-bottom: 4rem;
    position: relative;
    z-index: 2;
}

.post-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
}

.post-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
}

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

.post-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.post-card.featured {
    grid-row: span 2;
}

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

.post-card.featured .post-image {
    height: 300px;
}

.post-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.post-category {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: #2563eb;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.post-content {
    padding: 1.5rem;
}

.post-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.post-card.featured .post-title {
    font-size: 1.5rem;
}

.post-title a {
    color: #1f2937;
    text-decoration: none;
    transition: color 0.3s ease;
}

.post-title a:hover {
    color: #2563eb;
}

.post-excerpt {
    color: #6b7280;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.post-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.875rem;
    color: #9ca3af;
}

/* Tutorials Section */
.tutorials {
    padding: 80px 0;
    background: white;
}

.tutorials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.tutorial-card {
    background: #f9fafb;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #e5e7eb;
}

.tutorial-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.tutorial-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.tutorial-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: #1f2937;
}

.tutorial-description {
    color: #6b7280;
    margin-bottom: 1.5rem;
}

.tutorial-link {
    color: #2563eb;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.tutorial-link:hover {
    color: #1d4ed8;
}

/* About Section */
.about {
    padding: 80px 0;
    background: #f9fafb;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-description {
    font-size: 1.125rem;
    color: #6b7280;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.stats {
    display: flex;
    gap: 2rem;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: #2563eb;
}

.stat-label {
    font-size: 0.875rem;
    color: #6b7280;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.about-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 12px;
}

/* Newsletter Section */
.newsletter {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.newsletter-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.newsletter-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.newsletter-description {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.newsletter-form {
    display: flex;
    gap: 1rem;
    max-width: 400px;
    margin: 0 auto;
}

.newsletter-form input {
    flex: 1;
    padding: 12px 16px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
}

.newsletter-form input:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
}

/* Footer */
.footer {
    background: #1f2937;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #fbbf24;
}

.footer-subtitle {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #f9fafb;
}

.footer-description {
    color: #d1d5db;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s ease;
}

.social-link:hover {
    color: #fbbf24;
}

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

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #fbbf24;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 2rem;
    text-align: center;
    color: #9ca3af;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

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

    .post-card.featured {
        grid-row: span 1;
    }

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

    .stats {
        justify-content: center;
    }

    .newsletter-form {
        flex-direction: column;
    }

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

    .social-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Smooth Scrolling Enhancement */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}

/* Focus Styles for Accessibility */
.btn:focus,
.nav-link:focus,
input:focus {
    outline: 2px solid #2563eb;
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .header,
    .ad-container,
    .newsletter,
    .footer {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .hero {
        background: none;
        color: black;
    }
}