/* ============================================
   My Blog - Minimal White Professional Design
   ============================================ */

:root {
    --primary: #111827;
    --accent: #4f46e5;
    --accent-hover: #4338ca;
    --gray-100: #f9fafb;
    --gray-200: #f3f4f6;
    --gray-300: #e5e7eb;
    --gray-400: #d1d5db;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --white: #ffffff;
    --danger: #dc2626;
    --success: #16a34a;
    --max-width: 1100px;
    --radius: 8px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--gray-700);
    background: var(--white);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent-hover); }

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== Header ===== */
.site-header {
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    padding-bottom: 16px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: -0.5px;
}
.logo span { color: var(--accent); }

.main-nav {
    display: flex;
    gap: 28px;
}
.main-nav a {
    color: var(--gray-600);
    font-weight: 500;
    font-size: 0.95rem;
}
.main-nav a:hover,
.main-nav a.active {
    color: var(--primary);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
    padding: 4px;
}
.menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
}

.categories-bar {
    border-top: 1px solid var(--gray-100);
}
.category-nav {
    display: flex;
    gap: 24px;
    overflow-x: auto;
    padding-top: 12px;
    padding-bottom: 12px;
    white-space: nowrap;
}
.category-nav a {
    color: var(--gray-500);
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.category-nav a:hover,
.category-nav a.active {
    color: var(--accent);
}

/* Search page */
.search-form-wrap {
    max-width: 600px;
    margin: 0 auto 40px;
}
.search-form {
    display: flex;
    gap: 10px;
}
.search-form input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 1rem;
}
.search-form input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    padding: 40px 0;
}
.page-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--gray-700);
    background: var(--white);
    transition: all 0.2s;
}
.page-link:hover {
    border-color: var(--accent);
    color: var(--accent);
}
.page-link.current {
    background: var(--accent);
    color: var(--white);
    border-color: var(--accent);
}

/* ===== Main ===== */
.main-content {
    flex: 1;
}

/* ===== Hero ===== */
.hero {
    padding: 60px 0 40px;
    text-align: center;
}
.hero h1 {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 12px;
    font-weight: 800;
    letter-spacing: -1px;
}
.hero p {
    color: var(--gray-500);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Posts Grid ===== */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 32px;
    padding: 20px 0 60px;
}

.post-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
}
.post-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}
.post-card-image {
    aspect-ratio: 16/9;
    background: var(--gray-200);
    overflow: hidden;
}
.post-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.post-card-image .placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    font-size: 2rem;
    font-weight: 700;
}
.post-card-body {
    padding: 20px;
}
.post-card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
    font-size: 0.8rem;
}
.post-card-meta .category {
    color: var(--accent);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
}
.post-card-meta .date {
    color: var(--gray-500);
}
.post-card h2 {
    font-size: 1.2rem;
    margin-bottom: 8px;
    line-height: 1.4;
}
.post-card h2 a {
    color: var(--primary);
}
.post-card h2 a:hover {
    color: var(--accent);
}
.post-card p {
    color: var(--gray-600);
    font-size: 0.95rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ===== Single Post ===== */
.single-post {
    max-width: 760px;
    margin: 0 auto;
    padding: 40px 20px 60px;
}
.single-post-header {
    text-align: center;
    margin-bottom: 32px;
}
.single-post-header .category {
    display: inline-block;
    color: var(--accent);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.8rem;
    margin-bottom: 16px;
}
.single-post-header h1 {
    font-size: 2.2rem;
    color: var(--primary);
    line-height: 1.3;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 16px;
}
.single-post-header .post-date {
    color: var(--gray-500);
    font-size: 0.9rem;
}
.single-post-image {
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--gray-200);
    margin-bottom: 32px;
}
.single-post-image .placeholder {
    padding: 80px 0;
    text-align: center;
    color: var(--gray-400);
    font-size: 3rem;
    font-weight: 700;
}
.post-content {
    font-size: 1.05rem;
    color: var(--gray-700);
}
.post-content p {
    margin-bottom: 20px;
}
.post-content h2 {
    color: var(--primary);
    font-size: 1.5rem;
    margin: 32px 0 16px;
}
.post-content h3 {
    color: var(--primary);
    font-size: 1.25rem;
    margin: 24px 0 12px;
}
.post-content ul {
    margin: 0 0 20px 20px;
}
.post-content blockquote {
    border-left: 4px solid var(--accent);
    padding: 12px 20px;
    margin: 24px 0;
    background: var(--gray-100);
    color: var(--gray-600);
    font-style: italic;
}

/* ===== Related Posts ===== */
.related-posts {
    border-top: 1px solid var(--gray-200);
    padding: 40px 0;
}
.related-posts h2 {
    text-align: center;
    color: var(--primary);
    margin-bottom: 24px;
    font-size: 1.4rem;
}

/* ===== Page Header (About/Contact/Category) ===== */
.page-header {
    padding: 50px 0 20px;
}
.page-header h1 {
    font-size: 2rem;
    color: var(--primary);
    font-weight: 800;
    letter-spacing: -1px;
}
.page-header p {
    color: var(--gray-500);
    margin-top: 8px;
}

/* ===== About ===== */
.about-content {
    max-width: 760px;
    margin: 0 auto;
    padding: 20px 0 60px;
    font-size: 1.05rem;
}
.about-content p {
    margin-bottom: 20px;
    color: var(--gray-700);
}

/* ===== Contact ===== */
.contact-form-wrap {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px 0 60px;
}
.contact-info {
    margin-bottom: 32px;
    color: var(--gray-600);
}

/* ===== Forms ===== */
.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: var(--gray-700);
    font-size: 0.9rem;
}
.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--gray-700);
    background: var(--white);
    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(79, 70, 229, 0.1);
}
.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
    font-family: inherit;
}
.btn-primary {
    background: var(--accent);
    color: var(--white);
}
.btn-primary:hover {
    background: var(--accent-hover);
    color: var(--white);
}
.btn-secondary {
    background: var(--gray-200);
    color: var(--gray-700);
}
.btn-secondary:hover {
    background: var(--gray-300);
    color: var(--gray-700);
}
.btn-danger {
    background: var(--danger);
    color: var(--white);
}
.btn-danger:hover {
    background: #b91c1c;
    color: var(--white);
}
.btn-sm {
    padding: 6px 14px;
    font-size: 0.85rem;
}
.btn-block {
    width: 100%;
}

/* ===== Alerts ===== */
.alert {
    padding: 14px 18px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    font-size: 0.95rem;
}
.alert-success {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    color: var(--success);
}
.alert-error {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: var(--danger);
}
.alert-info {
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    color: var(--accent);
}

/* ===== Footer ===== */
.site-footer {
    background: var(--primary);
    color: var(--gray-300);
    margin-top: 40px;
}
.footer-inner {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 40px;
    padding: 50px 20px;
}
.footer-brand .logo {
    color: var(--white);
    display: inline-block;
    margin-bottom: 12px;
}
.footer-brand p {
    color: var(--gray-400);
    font-size: 0.9rem;
    max-width: 260px;
}
.footer-links h4,
.footer-categories h4 {
    color: var(--white);
    margin-bottom: 14px;
    font-size: 1rem;
    font-weight: 600;
}
.footer-links a,
.footer-categories a {
    display: block;
    color: var(--gray-400);
    padding: 5px 0;
    font-size: 0.9rem;
}
.footer-links a:hover,
.footer-categories a:hover {
    color: var(--white);
}
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 20px 0;
    text-align: center;
}
.footer-bottom p {
    color: var(--gray-500);
    font-size: 0.85rem;
}

/* ===== Admin shared ===== */
.admin-body {
    background: var(--gray-100);
}
.admin-header {
    background: var(--primary);
    color: var(--white);
    padding: 0;
}
.admin-header .header-inner {
    min-height: 64px;
}
.admin-header .logo {
    color: var(--white);
}
.admin-nav {
    display: flex;
    gap: 24px;
    align-items: center;
}
.admin-nav a {
    color: var(--gray-300);
    font-weight: 500;
    font-size: 0.9rem;
}
.admin-nav a:hover,
.admin-nav a.active {
    color: var(--white);
}
.admin-nav .user {
    color: var(--gray-400);
    font-size: 0.85rem;
    margin-right: 8px;
}
.admin-main {
    padding: 32px 0 60px;
}
.admin-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}
.admin-title h1 {
    font-size: 1.6rem;
    color: var(--primary);
    font-weight: 800;
}
.admin-panel {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

/* Admin table */
.table-wrap {
    overflow-x: auto;
}
table.admin-table {
    width: 100%;
    border-collapse: collapse;
}
.admin-table th {
    text-align: left;
    padding: 14px 18px;
    background: var(--gray-100);
    color: var(--gray-600);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--gray-200);
}
.admin-table td {
    padding: 14px 18px;
    border-bottom: 1px solid var(--gray-200);
    color: var(--gray-700);
    font-size: 0.9rem;
    vertical-align: middle;
}
.admin-table tr:hover td {
    background: var(--gray-100);
}

/* Admin stats cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}
.stat-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow-sm);
}
.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
}
.stat-card .stat-label {
    color: var(--gray-500);
    font-size: 0.85rem;
    margin-top: 4px;
}

/* Login page */
.login-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
}
.login-box {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    width: 100%;
    max-width: 400px;
    border: 1px solid var(--gray-200);
}
.login-box h1 {
    color: var(--primary);
    text-align: center;
    margin-bottom: 6px;
    font-size: 1.5rem;
}
.login-box .login-sub {
    text-align: center;
    color: var(--gray-500);
    margin-bottom: 28px;
    font-size: 0.9rem;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}
.badge-published { background: #f0fdf4; color: var(--success); }
.badge-draft { background: #fef3c7; color: #b45309; }

/* Empty state */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--gray-500);
}
.empty-state h3 {
    color: var(--gray-700);
    margin-bottom: 8px;
}

/* Form actions */
.form-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .hero h1 { font-size: 1.8rem; }
    .single-post-header h1 { font-size: 1.6rem; }
.header-search {
    display: flex;
    align-items: center;
}
.header-search input {
    padding: 7px 14px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 0.85rem;
    width: 200px;
    transition: border-color 0.2s;
}
.header-search input:focus {
    outline: none;
    border-color: var(--accent);
}

.menu-toggle {
        display: flex;
    }
    .main-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--gray-200);
        gap: 16px;
        display: none;
    }
    .main-nav.open {
        display: flex;
    }
    .posts-grid {
        grid-template-columns: 1fr;
    }
    .footer-inner {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .admin-nav {
        gap: 16px;
    }
}