:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --text-primary: #f0f6fc;
    --text-secondary: #8b949e;
    --accent: #ff6b35;
    --accent-hover: #ff8c5a;
    --danger: #f85149;
    --success: #3fb950;
    --warning: #d29922;
    --border: #30363d;
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    --radius: 12px;
    --radius-sm: 6px;
}

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

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

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

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

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

/* Header */
.header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo span {
    color: var(--accent);
}

.nav {
    display: flex;
    gap: 30px;
}

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

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

/* Hero Section */
.hero {
    text-align: center;
    padding: 80px 20px;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 30px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background: var(--accent-hover);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(255, 107, 53, 0.4);
}

.btn-primary:active,
.btn-primary:focus {
    background: var(--accent);
    color: white;
    outline: none;
}

.btn-primary:disabled {
    background: var(--accent);
    color: white;
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

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

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

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

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

.btn-sm {
    padding: 6px 14px;
    font-size: 0.875rem;
}

/* Stats */
.stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    padding: 40px 0;
    border-bottom: 1px solid var(--border);
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 5px;
}

/* Posts Grid */
.posts-section {
    padding: 60px 0;
}

.section-title {
    font-size: 1.8rem;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 25px;
}

/* Post Card */
.post-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 25px;
    transition: all 0.3s;
}

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

.post-meta {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

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

.post-meta .author-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 0.875rem;
}

.post-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    line-height: 1.4;
}

.post-card h3 a {
    color: var(--text-primary);
}

.post-card h3 a:hover {
    color: var(--accent);
}

.post-excerpt {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 15px;
}

.post-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.tag {
    background: var(--bg-tertiary);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Post Card Link (Clickable Card) */
.post-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.post-card-link:hover {
    color: inherit;
}

.post-card-link .post-card h3 {
    color: var(--text-primary);
    transition: color 0.2s;
}

.post-card-link:hover .post-card h3 {
    color: var(--accent);
}

/* Image Upload Preview */
.image-preview-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 10px;
    margin-top: 15px;
}

.image-preview-item {
    position: relative;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid var(--border);
}

.image-preview-item img {
    width: 100%;
    height: 80px;
    object-fit: cover;
    display: block;
}

.image-preview-item .remove-btn {
    position: absolute;
    top: 4px;
    right: 4px;
    background: var(--danger);
    color: white;
    border: none;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    cursor: pointer;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Single Article */
.article {
    max-width: 800px;
    margin: 0 auto;
    padding: 60px 20px;
}

.article-header {
    margin-bottom: 40px;
}

.article-header h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    line-height: 1.3;
}

.article-meta {
    display: flex;
    gap: 20px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    flex-wrap: wrap;
}

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

.article-content {
    font-size: 1.1rem;
    line-height: 1.8;
}

.article-content p {
    margin-bottom: 20px;
}

.article-content img {
    max-width: 100%;
    border-radius: var(--radius);
    margin: 20px 0;
}

.article-content a {
    color: var(--accent);
    text-decoration: underline;
}

/* Markdown Content Styles */
.article-content h1,
.article-content h2,
.article-content h3,
.article-content h4 {
    margin: 30px 0 15px 0;
    color: var(--text-primary);
}

.article-content h2 {
    font-size: 1.8rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 10px;
}

.article-content h3 {
    font-size: 1.4rem;
    color: var(--accent);
}

.article-content h4 {
    font-size: 1.2rem;
}

.article-content ul,
.article-content ol {
    margin: 15px 0;
    padding-left: 25px;
}

.article-content li {
    margin: 8px 0;
}

.article-content blockquote {
    border-left: 4px solid var(--accent);
    margin: 20px 0;
    padding: 15px 20px;
    background: var(--bg-secondary);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-style: italic;
    color: var(--text-secondary);
}

.article-content code {
    background: var(--bg-tertiary);
    padding: 2px 8px;
    border-radius: 4px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.9em;
    color: var(--accent);
}

.article-content pre {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 20px;
    overflow-x: auto;
    margin: 20px 0;
}

.article-content pre code {
    background: none;
    padding: 0;
    color: var(--text-primary);
}

.article-content hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 30px 0;
}

.article-content .markdown-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.article-content .markdown-table td {
    padding: 12px 15px;
    border: 1px solid var(--border);
}

.article-content .markdown-table tr:first-child td {
    background: var(--bg-tertiary);
    font-weight: 600;
}

.article-content .markdown-table tr:hover td {
    background: var(--bg-tertiary);
}

.article-content strong {
    color: var(--text-primary);
    font-weight: 600;
}

.article-content em {
    font-style: italic;
}

/* Form Styles */
.form-section {
    max-width: 700px;
    margin: 0 auto;
    padding: 60px 20px;
}

.form-section h1 {
    font-size: 2rem;
    margin-bottom: 10px;
}

.form-section .subtitle {
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.form-group {
    margin-bottom: 25px;
}

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

.form-group label span.optional {
    color: var(--text-secondary);
    font-weight: 400;
    font-size: 0.875rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.2);
}

.form-group textarea {
    min-height: 200px;
    resize: vertical;
}

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

.file-upload {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 30px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.file-upload:hover {
    border-color: var(--accent);
    background: rgba(255, 107, 53, 0.05);
}

.file-upload input {
    display: none;
}

.file-upload-text {
    color: var(--text-secondary);
}

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

/* Alert Messages */
.alert {
    padding: 15px 20px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-success {
    background: rgba(63, 185, 80, 0.15);
    border: 1px solid var(--success);
    color: var(--success);
}

.alert-error {
    background: rgba(248, 81, 73, 0.15);
    border: 1px solid var(--danger);
    color: var(--danger);
}

.alert-warning {
    background: rgba(210, 153, 34, 0.15);
    border: 1px solid var(--warning);
    color: var(--warning);
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 40px 0;
    text-align: center;
    margin-top: 60px;
}

.footer p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Admin Styles */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: 260px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    padding: 20px;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.admin-sidebar .logo {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.admin-nav {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.admin-nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 15px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    transition: all 0.2s;
}

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

.admin-main {
    flex: 1;
    margin-left: 260px;
    padding: 30px;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.admin-header h1 {
    font-size: 1.8rem;
}

/* Dashboard Cards */
.dashboard-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.dashboard-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 25px;
}

.dashboard-card h3 {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 10px;
}

.dashboard-card .value {
    font-size: 2.5rem;
    font-weight: 700;
}

.dashboard-card.pending .value {
    color: var(--warning);
}

.dashboard-card.approved .value {
    color: var(--success);
}

.dashboard-card.total .value {
    color: var(--accent);
}

/* Admin Table */
.admin-table {
    width: 100%;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.admin-table th,
.admin-table td {
    padding: 15px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.admin-table th {
    background: var(--bg-tertiary);
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.875rem;
    text-transform: uppercase;
}

.admin-table tr:last-child td {
    border-bottom: none;
}

.admin-table tr:hover td {
    background: var(--bg-tertiary);
}

.status-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.status-pending {
    background: rgba(210, 153, 34, 0.2);
    color: var(--warning);
}

.status-approved {
    background: rgba(63, 185, 80, 0.2);
    color: var(--success);
}

.status-rejected {
    background: rgba(248, 81, 73, 0.2);
    color: var(--danger);
}

.actions {
    display: flex;
    gap: 8px;
}

/* Login Page */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px;
    width: 100%;
    max-width: 400px;
}

.login-box h1 {
    text-align: center;
    margin-bottom: 30px;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-state h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

/* ==========================================
   MOBILE RESPONSIVE STYLES
   ========================================== */

/* Tablet and smaller */
@media (max-width: 768px) {

    /* Container */
    .container {
        padding: 0 12px;
    }

    /* HEADER - Single line, compact */
    .header {
        padding: 8px 0;
    }

    .header .container {
        flex-direction: row;
        gap: 10px;
    }

    .logo {
        font-size: 1rem;
    }

    .logo img {
        height: 30px !important;
    }

    .nav {
        gap: 5px;
    }

    .nav a {
        padding: 5px 8px;
        font-size: 0.75rem;
    }

    /* HERO - Smaller headings */
    .hero {
        padding: 40px 15px;
    }

    .hero h1 {
        font-size: 1.6rem;
        margin-bottom: 12px;
    }

    .hero p {
        font-size: 0.9rem;
        margin-bottom: 20px;
    }

    /* BUTTONS - Smaller */
    .btn {
        padding: 8px 16px;
        font-size: 0.85rem;
    }

    .btn-sm {
        padding: 4px 10px;
        font-size: 0.75rem;
    }

    /* STATS */
    .stats {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 20px;
        padding: 25px 0;
    }

    .stat {
        flex: 1;
        min-width: 80px;
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .stat-label {
        font-size: 0.75rem;
    }

    /* POST CARDS */
    .posts-section {
        padding: 30px 0;
    }

    .section-title {
        font-size: 1.3rem;
        margin-bottom: 20px;
    }

    .posts-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .post-card {
        padding: 15px;
    }

    .post-card h3 {
        font-size: 1rem;
    }

    .post-excerpt {
        font-size: 0.85rem;
    }

    /* ARTICLE PAGE */
    .article {
        padding: 30px 15px;
    }

    .article-header h1 {
        font-size: 1.5rem;
    }

    .article-meta {
        font-size: 0.8rem;
        gap: 10px;
    }

    .article-content {
        font-size: 0.95rem;
    }

    .article-content h2 {
        font-size: 1.3rem;
    }

    .article-content h3 {
        font-size: 1.1rem;
    }

    /* FORMS - Compact inputs */
    .form-section {
        padding: 30px 15px;
    }

    .form-section h1 {
        font-size: 1.4rem;
    }

    .form-group {
        margin-bottom: 18px;
    }

    .form-group label {
        font-size: 0.85rem;
        margin-bottom: 5px;
    }

    .form-group input,
    .form-group textarea,
    .form-group select {
        padding: 10px 12px;
        font-size: 0.9rem;
    }

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

    .file-upload {
        padding: 20px;
    }

    /* ALERTS */
    .alert {
        padding: 10px 14px;
        font-size: 0.85rem;
    }

    /* FOOTER */
    .footer {
        padding: 25px 0;
        margin-top: 30px;
    }

    .footer p {
        font-size: 0.8rem;
    }

    /* ADMIN PANEL - Mobile friendly */
    .admin-layout {
        flex-direction: column;
    }

    .admin-sidebar {
        display: block;
        width: 100%;
        height: auto;
        position: relative;
        padding: 10px;
        border-right: none;
        border-bottom: 1px solid var(--border);
    }

    .admin-sidebar .logo {
        display: none;
    }

    .admin-nav {
        flex-direction: row;
        overflow-x: auto;
        gap: 5px;
        padding-bottom: 5px;
        -webkit-overflow-scrolling: touch;
    }

    .admin-nav a {
        padding: 8px 12px;
        font-size: 0.75rem;
        white-space: nowrap;
        flex-shrink: 0;
    }

    .admin-nav a[href="logout.php"] {
        margin-top: 0;
        margin-left: auto;
    }

    .admin-main {
        margin-left: 0;
        padding: 15px;
    }

    .admin-header {
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }

    .admin-header h1 {
        font-size: 1.3rem;
    }

    .dashboard-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .dashboard-card {
        padding: 15px;
    }

    .dashboard-card .value {
        font-size: 1.8rem;
    }

    .admin-table {
        font-size: 0.8rem;
        display: block;
        overflow-x: auto;
    }

    .admin-table th,
    .admin-table td {
        padding: 10px 8px;
        white-space: nowrap;
    }

    .actions {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 5px;
    }

    /* COMMENTS */
    .comments-section {
        padding: 25px 15px;
    }

    .comments-section h2 {
        font-size: 1.2rem;
    }

    .comment-form-wrapper {
        padding: 15px;
    }

    .comment-avatar {
        width: 32px;
        height: 32px;
        font-size: 0.85rem;
    }

    /* STAR RATING */
    .star-rating-input label {
        font-size: 1.4rem;
    }

    /* LOGIN PAGE */
    .login-box {
        padding: 25px;
    }

    .login-box h1 {
        font-size: 1.3rem;
    }
}

/* Small phones */
@media (max-width: 480px) {
    .header .container {
        justify-content: space-between;
    }

    .logo img {
        height: 25px !important;
    }

    .nav a {
        padding: 4px 6px;
        font-size: 0.7rem;
    }

    .hero h1 {
        font-size: 1.3rem;
    }

    .stats {
        gap: 15px;
    }

    .stat-number {
        font-size: 1.2rem;
    }

    .btn {
        padding: 6px 12px;
        font-size: 0.8rem;
    }

    .dashboard-cards {
        grid-template-columns: 1fr;
    }
}

/* Comments Section */
.comments-section {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px 60px;
}

.comments-section h2 {
    font-size: 1.5rem;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border);
}

.comment-form-wrapper {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 25px;
    margin-bottom: 30px;
}

.comment-form .form-group label {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.char-counter {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.comment-form textarea {
    min-height: 120px;
}

.comments-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.comment-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
}

.comment-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.comment-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 1rem;
}

.comment-date {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

.comment-content {
    line-height: 1.6;
    color: var(--text-primary);
}

/* Star Rating Input */
.star-rating-input {
    display: flex;
    flex-direction: row-reverse;
    justify-content: flex-end;
    align-items: center;
    gap: 5px;
    flex-wrap: wrap;
}

.star-rating-input input {
    display: none;
}

.star-rating-input label {
    font-size: 1.8rem;
    cursor: pointer;
    filter: grayscale(100%);
    opacity: 0.5;
    transition: all 0.2s;
}

.star-rating-input label:hover,
.star-rating-input label:hover~label,
.star-rating-input input:checked~label {
    filter: grayscale(0%);
    opacity: 1;
}

.star-rating-input .rating-text {
    width: 100%;
    margin-top: 8px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Star Rating Display */
.star-rating {
    font-size: 0.9rem;
    letter-spacing: -2px;
}

.post-rating {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 10px;
    font-size: 0.9rem;
}

.post-rating .rating-value {
    color: var(--accent);
    font-weight: 600;
}