/* ==================== CSS Variables ==================== */
:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #ec4899;
    --accent: #f59e0b;
    --success: #10b981;
    --danger: #ef4444;
    
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a24;
    --bg-card: #16161f;
    --bg-card-hover: #1e1e2a;
    
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    
    --border-color: rgba(255, 255, 255, 0.08);
    --border-color-hover: rgba(255, 255, 255, 0.15);
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;
}

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

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

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

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

/* ==================== Utility Classes ==================== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ==================== Typography ==================== */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    line-height: 1.2;
}

/* ==================== Buttons ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition);
    white-space: nowrap;
}

.btn svg {
    width: 18px;
    height: 18px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}

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

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

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

.btn-outline:hover {
    background: var(--bg-tertiary);
    border-color: var(--primary);
    color: var(--primary-light);
}

/* ==================== Header ==================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 22px;
    font-weight: 700;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon svg {
    width: 22px;
    height: 22px;
    color: white;
}

.nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    padding: 10px 16px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.nav-link.active {
    color: var(--primary-light);
}

.mobile-toggle {
    display: none;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
}

.mobile-toggle svg {
    width: 24px;
    height: 24px;
}

/* ==================== Hero Section ==================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-gradient {
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 1000px;
    height: 1000px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, rgba(236, 72, 153, 0.1) 40%, transparent 70%);
    pointer-events: none;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%);
}

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

.hero-title {
    font-size: clamp(40px, 8vw, 72px);
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero-line {
    display: block;
}

.hero-line.accent {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 50%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    gap: 48px;
    justify-content: center;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-num {
    display: block;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-size: 14px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ==================== Sections ==================== */
.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px;
}

.section-badge {
    display: inline-block;
    padding: 6px 16px;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--primary-light);
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 100px;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(28px, 5vw, 42px);
    margin-bottom: 16px;
}

.section-desc {
    font-size: 17px;
    color: var(--text-secondary);
}

.section-footer {
    text-align: center;
    margin-top: 48px;
}

/* ==================== Tools Grid ==================== */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.tool-card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: var(--transition);
    position: relative;
}

.tool-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-color-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.tool-icon {
    width: 52px;
    height: 52px;
    min-width: 52px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.tool-icon svg {
    width: 26px;
    height: 26px;
    color: white;
}

.tool-info {
    flex: 1;
    min-width: 0;
}

.tool-info h3 {
    font-size: 16px;
    margin-bottom: 4px;
}

.tool-info p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.5;
}

.tool-tag {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 4px 10px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--text-muted);
    background: var(--bg-tertiary);
    border-radius: 100px;
}

/* ==================== Articles Grid ==================== */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 32px;
}

.article-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
}

.article-card:hover {
    border-color: var(--border-color-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.article-image {
    position: relative;
    display: block;
    aspect-ratio: 16/10;
    overflow: hidden;
}

.article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.article-category {
    position: absolute;
    top: 16px;
    left: 16px;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: white;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(10px);
    border-radius: 100px;
}

.article-content {
    padding: 24px;
}

.article-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 12px;
    font-size: 13px;
    color: var(--text-muted);
}

.article-title {
    font-size: 20px;
    margin-bottom: 12px;
    line-height: 1.4;
}

.article-title a {
    transition: var(--transition);
}

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

.article-excerpt {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
}

.article-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-light);
    transition: var(--transition);
}

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

/* ==================== Features Grid ==================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.feature-card {
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
}

.feature-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon svg {
    width: 32px;
    height: 32px;
    color: white;
}

.feature-card h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ==================== Newsletter ==================== */
.newsletter-section {
    padding: 80px 0;
}

.newsletter-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    padding: 48px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(236, 72, 153, 0.1) 100%);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-xl);
    flex-wrap: wrap;
}

.newsletter-content {
    flex: 1;
    min-width: 280px;
}

.newsletter-content h2 {
    font-size: 28px;
    margin-bottom: 8px;
}

.newsletter-content p {
    color: var(--text-secondary);
}

.newsletter-form {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.newsletter-form input {
    flex: 1;
    min-width: 250px;
    padding: 14px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    transition: var(--transition);
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.newsletter-form input::placeholder {
    color: var(--text-muted);
}

/* ==================== Footer ==================== */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 80px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(4, 1fr);
    gap: 48px;
    margin-bottom: 60px;
}

.footer-brand {
    max-width: 320px;
}

.footer-brand .logo {
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

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

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary);
    color: white;
}

.footer-social svg {
    width: 18px;
    height: 18px;
}

.footer-links h4 {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 14px;
    color: var(--text-secondary);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    padding: 24px 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-bottom p {
    font-size: 14px;
    color: var(--text-muted);
}

/* ==================== Page Header ==================== */
.page-header {
    padding: 160px 0 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.page-title {
    font-size: clamp(32px, 6vw, 48px);
    margin-bottom: 16px;
}

.page-desc {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ==================== Tool Detail Page ==================== */
.tool-detail {
    padding: 120px 0 80px;
}

.tool-detail-header {
    text-align: center;
    margin-bottom: 60px;
}

.tool-detail-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.tool-detail-icon svg {
    width: 40px;
    height: 40px;
    color: white;
}

.tool-detail-header h1 {
    font-size: 36px;
    margin-bottom: 12px;
}

.tool-detail-header p {
    font-size: 18px;
    color: var(--text-secondary);
}

.tool-card-detail {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 32px;
    margin-bottom: 40px;
}

.tool-section-title {
    font-size: 20px;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

/* ==================== Forms ==================== */
.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    transition: var(--transition);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-muted);
}

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

/* ==================== Contact Page ==================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

.contact-info {
    padding: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
}

.contact-item {
    display: flex;
    gap: 16px;
    margin-bottom: 32px;
}

.contact-item:last-child {
    margin-bottom: 0;
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
    color: white;
}

.contact-item h4 {
    font-size: 16px;
    margin-bottom: 4px;
}

.contact-item p {
    font-size: 15px;
    color: var(--text-secondary);
}

.contact-form {
    padding: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
}

/* ==================== Article Page ==================== */
.article-page {
    padding: 120px 0 80px;
}

.article-container {
    max-width: 800px;
    margin: 0 auto;
}

.article-header {
    text-align: center;
    margin-bottom: 48px;
}

.article-header .article-category {
    position: static;
    margin-bottom: 16px;
}

.article-header h1 {
    font-size: clamp(28px, 5vw, 42px);
    margin-bottom: 20px;
    line-height: 1.3;
}

.article-header .article-meta {
    justify-content: center;
}

.article-featured-image {
    width: 100%;
    aspect-ratio: 16/9;
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-bottom: 48px;
}

.article-featured-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.article-body {
    font-size: 18px;
    line-height: 1.8;
}

.article-body h2 {
    font-size: 28px;
    margin: 48px 0 20px;
}

.article-body h3 {
    font-size: 22px;
    margin: 32px 0 16px;
}

.article-body p {
    margin-bottom: 24px;
    color: var(--text-secondary);
}

.article-body img {
    border-radius: var(--radius-lg);
    margin: 32px 0;
}

.article-body ul,
.article-body ol {
    margin-bottom: 24px;
    padding-left: 24px;
}

.article-body li {
    margin-bottom: 12px;
    color: var(--text-secondary);
    list-style-type: disc;
}

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

.article-body blockquote {
    border-left: 4px solid var(--primary);
    padding-left: 24px;
    margin: 32px 0;
    font-style: italic;
    color: var(--text-secondary);
}

.article-body a {
    color: var(--primary-light);
    text-decoration: underline;
}

.article-body a:hover {
    color: var(--primary);
}

/* ==================== Related Articles ==================== */
.related-articles {
    margin-top: 80px;
    padding-top: 48px;
    border-top: 1px solid var(--border-color);
}

.related-articles h2 {
    font-size: 24px;
    margin-bottom: 32px;
}

/* ==================== Sitemap ==================== */
.sitemap-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.sitemap-section h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--primary-light);
}

.sitemap-section ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sitemap-section a {
    color: var(--text-secondary);
    transition: var(--transition);
}

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

/* ==================== Legal Pages ==================== */
.legal-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 120px 0 80px;
}

.legal-content h1 {
    font-size: 36px;
    margin-bottom: 32px;
}

.legal-content h2 {
    font-size: 24px;
    margin: 40px 0 16px;
}

.legal-content p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.7;
}

.legal-content ul {
    margin-bottom: 24px;
    padding-left: 24px;
}

.legal-content li {
    margin-bottom: 8px;
    color: var(--text-secondary);
    list-style-type: disc;
}

/* ==================== 404 Page ==================== */
.error-page {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 24px 80px;
}

.error-content h1 {
    font-size: 120px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
}

.error-content h2 {
    font-size: 28px;
    margin-bottom: 12px;
}

.error-content p {
    color: var(--text-secondary);
    margin-bottom: 32px;
}

/* ==================== Responsive ==================== */
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-brand {
        grid-column: span 2;
        max-width: none;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 73px;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--bg-primary);
        flex-direction: column;
        padding: 24px;
        gap: 4px;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        z-index: 999;
    }
    
    .nav.active {
        transform: translateX(0);
    }
    
    .nav-link {
        padding: 16px;
        width: 100%;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-stats {
        gap: 32px;
    }
    
    .stat-num {
        font-size: 28px;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .section-header {
        margin-bottom: 40px;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .articles-grid {
        grid-template-columns: 1fr;
    }
    
    .newsletter-box {
        flex-direction: column;
        text-align: center;
        padding: 32px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-brand {
        grid-column: span 1;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .newsletter-form input {
        min-width: auto;
    }
}

/* ==================== Animations ==================== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.animate-fade-in {
    animation: fadeIn 0.6s ease forwards;
}

/* ==================== Loading States ==================== */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--bg-card);
    display: flex;
    align-items: center;
    justify-content: center;
}