:root {
    --bg-color: #0b0f19;
    --card-bg: rgba(22, 30, 46, 0.7);
    --sidebar-bg: rgba(17, 24, 39, 0.8);
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --accent-color: #3b82f6;
    --accent-hover: #2563eb;
    --danger-color: #ef4444;
    --border-color: rgba(255, 255, 255, 0.1);
}

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

body.dark-theme {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
}

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

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

/* Navbar */
.blog-navbar {
    background: rgba(11, 15, 25, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 24px;
    font-weight: 700;
    color: #fff;
}

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

.nav-links {
    display: flex;
    gap: 15px;
    align-items: center;
}

.nav-btn {
    padding: 8px 16px;
    border-radius: 6px;
    font-weight: 500;
}

.nav-btn.highlight {
    background: var(--accent-color);
    color: #fff;
}

.nav-btn.highlight:hover {
    background: var(--accent-hover);
}

.user-badge {
    background: rgba(255,255,255,0.1);
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 14px;
}

/* Layout */
.blog-container {
    max-width: 1200px;
    margin: 30px auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 30px;
}

@media (max-width: 900px) {
    .blog-container {
        grid-template-columns: 1fr;
    }
}

/* Header & Tabs */
.blog-header {
    text-align: center;
    margin-bottom: 30px;
}

.category-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.tab-btn {
    padding: 8px 16px;
    border-radius: 20px;
    background: var(--card-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.2s;
}

.tab-btn.active, .tab-btn:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
}

/* Analysis Cards */
.analysis-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.analysis-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    backdrop-filter: blur(10px);
    transition: transform 0.2s;
}

.analysis-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.card-image {
    position: relative;
    height: 250px;
    overflow: hidden;
    cursor: pointer;
}

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

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

.zoom-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0,0,0,0.6);
    color: #fff;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    opacity: 0;
    transition: opacity 0.2s;
}

.card-image:hover .zoom-icon {
    opacity: 1;
}

.card-content {
    padding: 20px;
}

.card-date, .card-category {
    font-size: 12px;
    color: var(--text-secondary);
    margin-right: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.card-category {
    color: var(--accent-color);
}

.card-content h2 {
    margin: 10px 0;
    font-size: 20px;
}

.card-content p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.card-actions {
    display: flex;
    gap: 15px;
}

.like-btn, .comment-btn {
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 15px;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s;
}

.like-btn:hover {
    color: var(--danger-color);
    border-color: var(--danger-color);
}

.comment-btn:hover {
    color: var(--accent-color);
    border-color: var(--accent-color);
}

/* Sidebar Widgets */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.widget {
    background: var(--sidebar-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
}

.widget h3 {
    margin-bottom: 15px;
    font-size: 16px;
    border-bottom: 2px solid var(--accent-color);
    padding-bottom: 5px;
    display: inline-block;
}

/* Alert Widget */
.alert-widget {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.3);
}

.alert-widget h3 {
    color: var(--danger-color);
    border-bottom-color: var(--danger-color);
}

.alert-widget p {
    font-size: 13px;
    color: #cbd5e1;
}

/* Search Widget */
.search-flex {
    display: flex;
    margin-top: 10px;
}

.search-flex input {
    flex: 1;
    padding: 8px 12px;
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--border-color);
    border-radius: 4px 0 0 4px;
    color: #fff;
}

.search-flex button {
    padding: 8px 15px;
    background: var(--accent-color);
    color: #fff;
    border: none;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
    font-weight: bold;
}

/* List Widget */
.list-widget ul {
    list-style: none;
}

.list-widget li {
    margin-bottom: 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.list-widget li:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.list-widget a {
    color: var(--text-secondary);
    font-size: 14px;
}

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

/* Twitter Widget */
.twitter-mock {
    background: rgba(255,255,255,0.02);
    border-radius: 8px;
    padding: 15px;
}

.twitter-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.twitter-header img {
    border-radius: 50%;
}

.twitter-header span {
    display: block;
    font-size: 12px;
    color: var(--text-secondary);
}

.twitter-mock p {
    font-size: 14px;
}

/* Calendar Widget */
.calendar {
    width: 100%;
    text-align: center;
    font-size: 14px;
    border-collapse: collapse;
}

.calendar th, .calendar td {
    padding: 5px;
}

.calendar .active-day {
    display: inline-block;
    width: 24px;
    height: 24px;
    line-height: 24px;
    background: var(--accent-color);
    color: #fff;
    border-radius: 50%;
}

/* Lightbox Modal */
.lightbox-modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(5px);
}

.lightbox-content {
    margin: auto;
    display: block;
    max-width: 90%;
    max-height: 90vh;
    margin-top: 5vh;
    border-radius: 8px;
    box-shadow: 0 0 30px rgba(0,0,0,0.5);
    animation: zoomIn 0.3s ease;
}

@keyframes zoomIn {
    from {transform: scale(0.9); opacity: 0;}
    to {transform: scale(1); opacity: 1;}
}

.close-lightbox {
    position: absolute;
    top: 20px;
    right: 35px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
}

.close-lightbox:hover {
    color: var(--danger-color);
}

/* Auth Pages */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
}

.auth-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 40px;
    border-radius: 12px;
    width: 100%;
    max-width: 400px;
}

.auth-card h2 {
    margin-bottom: 10px;
    text-align: center;
}

.auth-card p {
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 25px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
}

.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="text"],
.form-group input[type="number"] {
    width: 100%;
    padding: 12px;
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: #fff;
    font-family: inherit;
}

.submit-btn {
    width: 100%;
    padding: 12px;
    background: var(--accent-color);
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.2s;
}

.submit-btn:hover {
    background: var(--accent-hover);
}

.error-msg {
    color: var(--danger-color);
    margin-top: 10px;
    text-align: center;
    font-size: 14px;
}

.auth-links {
    margin-top: 20px;
    text-align: center;
    font-size: 14px;
}

/* Admin Table */
.admin-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    background: var(--card-bg);
    border-radius: 8px;
    overflow: hidden;
}

.admin-table th, .admin-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.admin-table th {
    background: rgba(255,255,255,0.05);
}

.badge {
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
}

.badge.success { background: rgba(16, 185, 129, 0.2); color: #34d399; }
.badge.danger { background: rgba(239, 68, 68, 0.2); color: #f87171; }

select, input[type="datetime-local"] {
    padding: 6px;
    background: rgba(0,0,0,0.3);
    color: #fff;
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

.save-btn {
    padding: 6px 12px;
    background: var(--accent-color);
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}