/*
Theme Name: DevEcosystem - 程序员创业生态平台
Theme URI: https://devecosystem.com
Author: CodeArts
Description: 大型技术创业平台主题 - 编程+AI+创业+副业赚钱完整生态
Version: 4.0.0
Text Domain: dev-ecosystem
*/

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #ec4899;
    --accent: #f59e0b;
    --success: #10b981;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-dark: #0f172a;
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-secondary: linear-gradient(135deg, #ec4899 0%, #f43f5e 100%);
    --gradient-accent: linear-gradient(135deg, #f59e0b 0%, #f97316 100%);
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-secondary);
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--primary-dark);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ==================== HEADER ==================== */
.platform-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid #e2e8f0;
    height: 64px;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

.platform-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
}

.platform-logo-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-link {
    padding: 8px 16px;
    color: var(--text-secondary);
    font-weight: 500;
    border-radius: 6px;
    transition: all 0.2s;
}

.nav-link:hover {
    color: var(--primary);
    background: #f1f5f9;
}

/* ==================== BUTTONS ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary {
    background: white;
    color: var(--text-primary);
    border-color: #e2e8f0;
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 16px;
}

/* ==================== HERO SECTION ==================== */
.hero-section {
    background: var(--gradient-primary);
    padding: 160px 0 100px;
    color: white;
    position: relative;
    overflow: hidden;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
    backdrop-filter: blur(8px);
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 24px;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 48px;
    opacity: 0.95;
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 64px;
}

.hero-cta .btn {
    padding: 16px 32px;
    font-size: 16px;
}

.hero-cta .btn-primary {
    background: white;
    color: var(--primary);
    box-shadow: var(--shadow-xl);
}

.hero-cta .btn-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

.hero-cta .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    max-width: 1000px;
    margin: 0 auto;
}

.stat-card {
    text-align: center;
    padding: 24px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(8px);
    transition: transform 0.3s;
}

.stat-card:hover {
    transform: translateY(-4px);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    opacity: 0.9;
}

/* ==================== SECTIONS ==================== */
.section {
    padding: 80px 0;
}

.section-gray {
    background: #f8fafc;
}

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

.section-gradient {
    background: var(--gradient-primary);
}

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

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 16px;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 16px;
    font-weight: 700;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ==================== CONTENT CENTERS ==================== */
.content-centers-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.content-center-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 32px;
    border: 1px solid #e2e8f0;
    transition: all 0.3s;
    box-shadow: var(--shadow-sm);
}

.content-center-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.center-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin-bottom: 20px;
    color: white;
}

.center-icon.coding { background: var(--gradient-primary); }
.center-icon.ai { background: var(--gradient-secondary); }
.center-icon.startup { background: var(--gradient-accent); }
.center-icon.seo { background: linear-gradient(135deg, #10b981 0%, #059669 100%); }

.content-center-card h3 {
    font-size: 1.25rem;
    margin-bottom: 16px;
    font-weight: 700;
}

.center-topics {
    list-style: none;
    margin: 0 0 24px 0;
}

.center-topics li {
    padding: 8px 0;
    color: var(--text-secondary);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.center-topics li::before {
    content: '•';
    color: var(--primary);
    font-weight: bold;
    font-size: 16px;
}

/* ==================== TOOLS GRID ==================== */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.tool-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 24px;
    border: 1px solid #e2e8f0;
    transition: all 0.3s;
    box-shadow: var(--shadow-sm);
}

.tool-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.tool-header {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 16px;
}

.tool-logo {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: #f1f5f9;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.tool-info {
    flex: 1;
}

.tool-info h4 {
    font-size: 1.125rem;
    margin-bottom: 4px;
    font-weight: 600;
}

.tool-category {
    font-size: 13px;
    color: #94a3b8;
}

.tool-description {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 16px;
    line-height: 1.6;
}

.tool-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid #f1f5f9;
}

.tool-rating {
    display: flex;
    align-items: center;
    gap: 4px;
    color: #f59e0b;
    font-size: 14px;
}

.tool-price {
    font-size: 14px;
    font-weight: 600;
    color: var(--success);
}

/* ==================== CASES GRID ==================== */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.case-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid #e2e8f0;
    transition: all 0.3s;
    box-shadow: var(--shadow-sm);
}

.case-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.case-image {
    height: 200px;
    background: #f1f5f9;
    overflow: hidden;
}

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

.case-content {
    padding: 24px;
}

.case-founder {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.case-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    flex-shrink: 0;
}

.case-content h4 {
    font-size: 1.25rem;
    margin-bottom: 8px;
    font-weight: 600;
}

.case-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid #f1f5f9;
}

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

.case-stat-value {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--primary);
}

.case-stat-label {
    font-size: 12px;
    color: #94a3b8;
}

/* ==================== DATABASE GRID ==================== */
.database-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.database-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid #e2e8f0;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
}

.database-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.database-header {
    padding: 32px;
    background: var(--gradient-primary);
    color: white;
}

.database-header h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
    font-weight: 600;
}

.database-header p {
    font-size: 14px;
    opacity: 0.9;
}

.database-content {
    padding: 24px 32px;
}

.database-features {
    list-style: none;
    margin: 0;
}

.database-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid #f1f5f9;
    font-size: 15px;
    color: var(--text-secondary);
}

.database-features li:last-child {
    border-bottom: none;
}

.feature-icon {
    width: 40px;
    height: 40px;
    background: #f8fafc;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    flex-shrink: 0;
}

/* ==================== MEMBERSHIP GRID ==================== */
.membership-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.membership-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    border: 2px solid #e2e8f0;
    text-align: center;
    transition: all 0.3s;
    position: relative;
    display: flex;
    flex-direction: column;
}

.membership-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.membership-card.featured {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}

.membership-card.featured::before {
    content: '最受欢迎';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: white;
    padding: 6px 20px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
}

.membership-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
}

.membership-card h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
    font-weight: 600;
}

.membership-price {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 8px;
}

.membership-price span {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.membership-features {
    list-style: none;
    text-align: left;
    margin: 20px 0;
    flex: 1;
}

.membership-features li {
    padding: 8px 0;
    color: var(--text-secondary);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.membership-features li::before {
    content: '✓';
    color: var(--success);
    font-weight: 700;
}

/* ==================== ARTICLES GRID ==================== */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.article-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid #e2e8f0;
    transition: all 0.3s;
    box-shadow: var(--shadow-sm);
}

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

.article-image {
    height: 200px;
    overflow: hidden;
    background: #f1f5f9;
}

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

.article-content {
    padding: 20px;
}

.article-meta {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
    font-size: 13px;
    color: #94a3b8;
}

.article-title {
    font-size: 1.125rem;
    margin-bottom: 12px;
    line-height: 1.4;
    font-weight: 600;
}

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

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

.article-excerpt {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 16px;
    line-height: 1.6;
}

.article-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid #f1f5f9;
}

.article-author {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
}

.article-stats {
    display: flex;
    gap: 12px;
    font-size: 13px;
    color: #94a3b8;
}

/* ==================== SINGLE POST CONTENT ==================== */
.article-body {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-primary);
}

.article-body > *:first-child {
    margin-top: 0;
}

.article-body > *:last-child {
    margin-bottom: 0;
}

/* Paragraphs */
.article-body p {
    margin-bottom: 1.5em;
}

/* Headings */
.article-body h1,
.article-body h2,
.article-body h3,
.article-body h4,
.article-body h5,
.article-body h6 {
    margin-top: 2em;
    margin-bottom: 0.75em;
    line-height: 1.3;
}

.article-body h1 {
    font-size: 2.5rem;
}

.article-body h2 {
    font-size: 2rem;
    padding-bottom: 0.5em;
    border-bottom: 2px solid var(--color-gray-200);
}

.article-body h3 {
    font-size: 1.5rem;
}

.article-body h4 {
    font-size: 1.25rem;
}

.article-body h5 {
    font-size: 1.125rem;
}

.article-body h6 {
    font-size: 1rem;
}

/* Lists */
.article-body ul,
.article-body ol {
    margin-bottom: 1.5em;
    padding-left: 2em;
}

.article-body li {
    margin-bottom: 0.5em;
    line-height: 1.6;
}

.article-body ul ul,
.article-body ol ol,
.article-body ul ol,
.article-body ol ul {
    margin-top: 0.5em;
    margin-bottom: 0.5em;
}

/* Blockquotes */
.article-body blockquote {
    margin: 1.5em 0;
    padding: 1.5em 2em;
    border-left: 4px solid var(--color-primary);
    background: var(--color-gray-50);
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    font-style: italic;
}

.article-body blockquote p:last-child {
    margin-bottom: 0;
}

.article-body blockquote cite {
    display: block;
    margin-top: 1em;
    font-size: 0.875em;
    color: var(--text-secondary);
    font-style: normal;
}

/* Code */
.article-body code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    padding: 0.2em 0.4em;
    background: var(--color-gray-100);
    border-radius: var(--radius-sm);
    color: var(--color-secondary);
}

.article-body pre {
    margin: 1.5em 0;
    padding: 1.5em;
    background: var(--color-gray-900);
    color: var(--color-gray-100);
    border-radius: var(--radius-lg);
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.6;
}

.article-body pre code {
    padding: 0;
    background: transparent;
    color: inherit;
    font-size: inherit;
}

/* Images */
.article-body img {
    max-width: 100%;
    height: auto;
    margin: 1.5em 0;
    border-radius: var(--radius-lg);
}

.article-body figure {
    margin: 1.5em 0;
}

.article-body figcaption {
    margin-top: 0.5em;
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-align: center;
}

/* Links */
.article-body a {
    color: var(--color-primary);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
}

.article-body a:hover {
    color: var(--color-primary-dark);
    text-decoration-thickness: 2px;
}

/* Tables */
.article-body table {
    width: 100%;
    margin: 1.5em 0;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.article-body thead {
    background: var(--color-gray-50);
}

.article-body th,
.article-body td {
    padding: 0.75em 1em;
    text-align: left;
    border: 1px solid var(--color-gray-200);
}

.article-body th {
    font-weight: 600;
}

.article-body tbody tr:hover {
    background: var(--color-gray-50);
}

/* Horizontal Rule */
.article-body hr {
    margin: 2em 0;
    border: none;
    height: 2px;
    background: var(--color-gray-200);
}

/* Definition Lists */
.article-body dl {
    margin: 1.5em 0;
}

.article-body dt {
    font-weight: 600;
    margin-top: 1em;
}

.article-body dd {
    margin-left: 2em;
    margin-top: 0.25em;
}

/* Embedded Content */
.article-body iframe,
.article-body video,
.article-body audio {
    max-width: 100%;
    margin: 1.5em 0;
}

.article-body .wp-video,
.article-body .wp-audio-shortcode {
    margin: 1.5em 0;
}

/* Callouts / Notices */
.article-body .notice,
.article-body .callout {
    margin: 1.5em 0;
    padding: 1.5em;
    border-radius: var(--radius-lg);
}

.article-body .notice-info,
.article-body .callout-info {
    background: rgba(99, 102, 241, 0.1);
    border-left: 4px solid var(--color-primary);
}

.article-body .notice-warning,
.article-body .callout-warning {
    background: rgba(245, 158, 11, 0.1);
    border-left: 4px solid var(--color-accent);
}

.article-body .notice-error,
.article-body .callout-error {
    background: rgba(239, 68, 68, 0.1);
    border-left: 4px solid var(--color-error);
}

.article-body .notice-success,
.article-body .callout-success {
    background: rgba(16, 185, 129, 0.1);
    border-left: 4px solid var(--color-success);
}

/* WordPress Specific */
.article-body .wp-block-gallery {
    margin: 1.5em 0;
}

.article-body .wp-block-pullquote {
    margin: 2em 0;
    padding: 2em;
    border-top: 4px solid var(--color-primary);
    border-bottom: 4px solid var(--color-primary);
    text-align: center;
}

.article-body .wp-block-quote {
    border-left: none;
    padding: 1.5em;
    background: var(--color-gray-50);
}

/* ==================== NEWSLETTER ==================== */
.newsletter-form {
    display: flex;
    gap: 12px;
    max-width: 480px;
    margin: 0 auto;
}

.newsletter-form input[type="email"] {
    flex: 1;
    padding: 14px 20px;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    outline: none;
}

/* ==================== FOOTER ==================== */
.platform-footer {
    background: var(--bg-dark);
    color: white;
    padding: 80px 0 40px;
    width: 100%;
}

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

.footer-brand {
    padding-right: 48px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 16px;
    color: white;
}

.footer-description {
    color: #cbd5e1;
    margin-bottom: 24px;
    line-height: 1.7;
}

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

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: background 0.3s;
}

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

.footer-column h4 {
    font-size: 1rem;
    margin-bottom: 24px;
    color: white;
    font-weight: 600;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: #cbd5e1;
    font-size: 14px;
    transition: color 0.3s;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 32px;
    text-align: center;
    color: #94a3b8;
    font-size: 14px;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 1200px) {
    .content-centers-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .database-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .membership-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-brand {
        grid-column: 1 / -1;
        padding-right: 0;
        margin-bottom: 32px;
    }
}

@media (max-width: 992px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .hero-section {
        padding: 120px 0 80px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-cta .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .content-centers-grid,
    .tools-grid,
    .cases-grid,
    .database-grid,
    .membership-grid,
    .articles-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-brand {
        grid-column: 1;
        text-align: center;
        padding-right: 0;
    }
    
    .footer-social {
        justify-content: center;
    }
    
    .footer-column {
        text-align: center;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .nav-menu {
        display: none;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .stat-number {
        font-size: 1.75rem;
    }
    
    .membership-price {
        font-size: 2rem;
    }
}
/* ========================================
   SINGLE POST - PROFESSIONAL DEVELOPER BLOG
   ======================================== */

/* Article Header */
.article-header {
    background: var(--bg-primary);
    padding: 120px 0 48px;
    border-bottom: 1px solid var(--color-gray-200);
}

.article-header-inner {
    max-width: 760px;
    margin: 0 auto;
}

/* Breadcrumb */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
    font-size: 14px;
    color: var(--text-secondary);
    flex-wrap: wrap;
}

.breadcrumb a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    transition: color 0.2s;
}

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

.breadcrumb-separator {
    color: var(--color-gray-400);
}

.breadcrumb-current {
    color: var(--text-primary);
    font-weight: 500;
}

/* Category Badge */
.article-category-badge {
    margin-bottom: 16px;
}

.article-category-badge a {
    display: inline-flex;
    align-items: center;
    padding: 6px 16px;
    background: rgba(99, 102, 241, 0.1);
    color: var(--color-primary);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    transition: all 0.2s;
}

.article-category-badge a:hover {
    background: rgba(99, 102, 241, 0.15);
}

/* Article Title */
.article-title {
    font-size: 2.75rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

/* Article Meta */
.article-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}

.author-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-avatar {
    border-radius: 50%;
    border: 2px solid var(--color-gray-200);
}

.author-details {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.author-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    transition: color 0.2s;
}

.author-name:hover {
    color: var(--color-primary);
}

.article-date-info {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-secondary);
}

.date-separator {
    color: var(--color-gray-400);
}

.updated-badge {
    color: var(--color-gray-500);
}

.article-stats {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 14px;
    color: var(--text-secondary);
}

.reading-time,
.view-count {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* Featured Image */
.article-featured-image {
    background: var(--bg-secondary);
    padding: 48px 0;
}

.featured-image-wrapper {
    max-width: 760px;
    margin: 0 auto;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

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

/* Article Content Wrapper */
.article-content-wrapper {
    background: var(--bg-primary);
    padding: 48px 0;
}

.article-layout {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 48px;
    max-width: 1160px;
    margin: 0 auto;
}

/* Table of Contents */
.article-toc {
    position: relative;
}

.toc-inner {
    position: sticky;
    top: 100px;
}

.toc-title {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.toc-nav {
    font-size: 14px;
}

.toc-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.toc-nav li {
    margin-bottom: 8px;
}

.toc-nav a {
    display: block;
    padding: 6px 0;
    color: var(--text-secondary);
    border-left: 2px solid transparent;
    padding-left: 12px;
    margin-left: -12px;
    transition: all 0.2s;
}

.toc-nav a:hover {
    color: var(--text-primary);
}

.toc-nav a.active {
    color: var(--color-primary);
    border-left-color: var(--color-primary);
}

/* Article Main */
.article-main {
    max-width: 760px;
}

/* Article Body - Professional Typography */
.article-body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 1.0625rem;
    line-height: 1.75;
    color: var(--text-primary);
}

.article-body > *:first-child {
    margin-top: 0;
}

.article-body > *:last-child {
    margin-bottom: 0;
}

/* Paragraphs */
.article-body p {
    margin-bottom: 1.5em;
}

/* Headings */
.article-body h1,
.article-body h2,
.article-body h3,
.article-body h4,
.article-body h5,
.article-body h6 {
    margin-top: 2em;
    margin-bottom: 0.75em;
    line-height: 1.3;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.article-body h1 {
    font-size: 2rem;
}

.article-body h2 {
    font-size: 1.75rem;
    padding-bottom: 0.5em;
    border-bottom: 1px solid var(--color-gray-200);
    margin-top: 2.5em;
}

.article-body h3 {
    font-size: 1.375rem;
    margin-top: 2em;
}

.article-body h4 {
    font-size: 1.125rem;
}

.article-body h5 {
    font-size: 1rem;
}

.article-body h6 {
    font-size: 0.875rem;
}

/* Links */
.article-body a {
    color: var(--color-primary);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
    transition: all 0.2s;
}

.article-body a:hover {
    color: var(--color-primary-dark);
    text-decoration-thickness: 2px;
}

/* Lists */
.article-body ul,
.article-body ol {
    margin-bottom: 1.5em;
    padding-left: 1.5em;
}

.article-body li {
    margin-bottom: 0.5em;
    line-height: 1.6;
}

.article-body li::marker {
    color: var(--color-primary);
}

.article-body ul ul,
.article-body ol ol,
.article-body ul ol,
.article-body ol ul {
    margin-top: 0.5em;
    margin-bottom: 0.5em;
}

/* Blockquotes */
.article-body blockquote {
    margin: 1.5em 0;
    padding: 1.25em 1.5em;
    border-left: 4px solid var(--color-primary);
    background: var(--color-gray-50);
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}

.article-body blockquote p:last-child {
    margin-bottom: 0;
}

/* Code - Inline */
.article-body code:not(pre code) {
    font-family: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;
    font-size: 0.875em;
    padding: 0.2em 0.4em;
    background: rgba(99, 102, 241, 0.1);
    color: var(--color-primary);
    border-radius: 4px;
    font-weight: 500;
}

/* Code - Block */
.article-body pre {
    margin: 1.5em 0;
    padding: 0;
    background: #1e1e1e;
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
}

.article-body pre code {
    font-family: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    color: #d4d4d4;
    display: block;
    padding: 1.25em 1.5em;
    overflow-x: auto;
}

/* Code Block Header (Language Badge) */
.article-body pre[data-language]::before {
    content: attr(data-language);
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    padding: 8px 1.5em;
    background: rgba(255, 255, 255, 0.05);
    color: #858585;
    font-size: 12px;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.article-body pre[data-language] code {
    padding-top: 3em;
}

/* Images */
.article-body img {
    max-width: 100%;
    height: auto;
    margin: 1.5em 0;
    border-radius: var(--radius-lg);
}

.article-body figure {
    margin: 1.5em 0;
}

.article-body figcaption {
    margin-top: 0.75em;
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-align: center;
}

/* Tables */
.article-body table {
    width: 100%;
    margin: 1.5em 0;
    border-collapse: collapse;
    font-size: 0.9375rem;
}

.article-body thead {
    background: var(--color-gray-50);
}

.article-body th,
.article-body td {
    padding: 0.75em 1em;
    text-align: left;
    border: 1px solid var(--color-gray-200);
}

.article-body th {
    font-weight: 600;
}

.article-body tbody tr:hover {
    background: var(--color-gray-50);
}

/* Horizontal Rule */
.article-body hr {
    margin: 2.5em 0;
    border: none;
    height: 1px;
    background: var(--color-gray-200);
}

/* Article Footer */
.article-footer {
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--color-gray-200);
}

/* Tags */
.article-tags {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.article-tags svg {
    color: var(--text-secondary);
}

.tag-link {
    padding: 6px 12px;
    background: var(--color-gray-100);
    color: var(--text-secondary);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.2s;
}

.tag-link:hover {
    background: var(--color-gray-200);
    color: var(--text-primary);
}

/* Share */
.article-share {
    display: flex;
    align-items: center;
    gap: 16px;
}

.share-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
}

.share-buttons {
    display: flex;
    gap: 8px;
}

.share-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-gray-100);
    color: var(--text-secondary);
    transition: all 0.2s;
    border: none;
    cursor: pointer;
}

.share-button:hover {
    background: var(--color-gray-200);
    color: var(--text-primary);
}

.share-twitter:hover {
    background: #1da1f2;
    color: white;
}

.share-linkedin:hover {
    background: #0077b5;
    color: white;
}

/* Author Bio */
.author-bio {
    margin-top: 48px;
    padding: 32px;
    background: var(--color-gray-50);
    border-radius: var(--radius-xl);
    display: flex;
    gap: 24px;
    align-items: flex-start;
}

.author-bio-avatar img {
    border-radius: 50%;
}

.author-bio-content {
    flex: 1;
}

.author-bio-name {
    font-size: 1.125rem;
    margin-bottom: 8px;
}

.author-bio-name a {
    color: var(--color-primary);
}

.author-bio-description {
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.6;
}

.author-bio-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary);
    transition: gap 0.2s;
}

.author-bio-link:hover {
    gap: 10px;
}

/* Article Navigation */
.article-navigation {
    margin-top: 48px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.article-navigation .nav-link {
    padding: 20px;
    background: var(--color-gray-50);
    border-radius: var(--radius-lg);
    transition: all 0.2s;
    text-decoration: none;
}

.article-navigation .nav-link:hover {
    background: var(--color-gray-100);
    transform: translateY(-2px);
}

.article-navigation .nav-link.empty {
    background: transparent;
}

.nav-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.nav-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
}

/* Related Articles */
.related-articles {
    background: var(--bg-secondary);
    padding: 80px 0;
}

.related-title {
    text-align: center;
    font-size: 1.75rem;
    margin-bottom: 48px;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.related-card {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--color-gray-200);
    transition: all 0.2s;
}

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

.related-image {
    display: block;
    height: 180px;
    overflow: hidden;
}

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

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

.related-content {
    padding: 20px;
}

.related-card-title {
    font-size: 1rem;
    margin-bottom: 8px;
    line-height: 1.4;
}

.related-card-title a {
    color: var(--text-primary);
}

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

.related-excerpt {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    line-height: 1.5;
}

.related-meta {
    font-size: 13px;
    color: var(--color-gray-400);
}

/* Responsive */
@media (max-width: 1024px) {
    .article-layout {
        grid-template-columns: 1fr;
    }
    
    .article-toc {
        display: none;
    }
}

@media (max-width: 768px) {
    .article-header {
        padding: 100px 0 32px;
    }
    
    .article-title {
        font-size: 2rem;
    }
    
    .article-meta {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .article-body {
        font-size: 1rem;
    }
    
    .article-body h2 {
        font-size: 1.5rem;
    }
    
    .article-body h3 {
        font-size: 1.25rem;
    }
    
    .author-bio {
        flex-direction: column;
        text-align: center;
    }
    
    .author-bio-avatar {
        margin: 0 auto;
    }
    
    .article-navigation {
        grid-template-columns: 1fr;
    }
    
    .related-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .article-title {
        font-size: 1.75rem;
    }
    
    .article-body pre code {
        font-size: 0.8125rem;
    }
}