:root {
    --bg-color: #0f1115;
    --card-bg: #1a1d24;
    --text-primary: #f8f9fa;
    --text-secondary: #a1a1aa;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --success: #10b981;
    --border: #272a30;
    --radius: 12px;
    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 600;
    color: var(--text-primary);
}

/* Layout */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1rem;
    width: 100%;
}

.center-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    text-align: center;
    min-height: 80vh;
}

/* Cards & Boxes */
.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

/* Typography Helpers */
.title-large {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    background: linear-gradient(to right, #60a5fa, #3b82f6);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.text-muted {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.subreddit-label {
    display: inline-block;
    background-color: rgba(59, 130, 246, 0.1);
    color: #60a5fa;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background-color: var(--accent);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(59, 130, 246, 0.39);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.25rem;
    border-radius: 9999px;
}

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

.btn-secondary:hover:not(:disabled) {
    background-color: rgba(255, 255, 255, 0.05);
}

.btn-danger {
    background-color: rgba(239, 68, 68, 0.1);
    color: #ef4444;
}

.btn-danger:hover:not(:disabled) {
    background-color: rgba(239, 68, 68, 0.2);
}

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

.btn-success:hover:not(:disabled) {
    background-color: #059669;
}

.btn-copy {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    margin-top: 1rem;
    width: 100%;
}

.btn-copy:hover:not(:disabled) {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.btn-copy.copied {
    background-color: rgba(16, 185, 129, 0.1);
    border-color: var(--success);
    color: var(--success);
}

/* Text Selection */
.copy-box {
    margin-bottom: 1.5rem;
}

.copy-content {
    background-color: #111318;
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    font-size: 1rem;
    white-space: pre-wrap;
    word-break: break-word;
}

.copy-content.title-text {
    font-size: 1.25rem;
    font-weight: 600;
}

/* Media Gallery */
.media-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.media-item {
    width: 100%;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border);
    background-color: #111318;
}

.media-item img, .media-item video {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    max-height: 400px;
}

/* Admin Dashboard Specific */
.admin-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border);
}

.admin-nav-links {
    display: flex;
    gap: 1rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: center;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--accent);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: #111318;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

/* Table */
.table-container {
    overflow-x: auto;
    overflow-y: auto;
    max-height: 65vh;
    background-color: var(--card-bg);
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

/* Make table headers sticky so they stay visible when scrolling */
table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    font-weight: 600;
    color: var(--text-secondary);
    background-color: var(--card-bg); /* Opaque background for sticky header */
    position: sticky;
    top: 0;
    z-index: 10;
    box-shadow: 0 1px 0 var(--border); /* Better than border-bottom for sticky elements */
}

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

/* Status Badges */
.badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-available { background-color: rgba(16, 185, 129, 0.1); color: var(--success); }
.badge-claimed { background-color: rgba(245, 158, 11, 0.1); color: #f59e0b; }
.badge-completed { background-color: rgba(59, 130, 246, 0.1); color: var(--accent); }

/* Utilities */
.hidden { display: none !important; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }
.mt-4 { margin-top: 1rem; }
.mt-8 { margin-top: 2rem; }
.mb-4 { margin-bottom: 1rem; }
.w-full { width: 100%; }

/* Error Message */
.error-message {
    color: var(--danger);
    background-color: rgba(239, 68, 68, 0.1);
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Toast Container */
#toast-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.toast {
    background-color: var(--card-bg);
    color: var(--text);
    padding: 1rem 1.5rem;
    border-radius: 8px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    border-left: 4px solid var(--accent);
    display: flex;
    align-items: center;
    gap: 1rem;
    animation: slideIn 0.3s ease-out forwards, fadeOut 0.3s ease-in 3.7s forwards;
    opacity: 0;
    max-width: 350px;
}

.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--danger); }
.toast.info { border-left-color: var(--accent); }

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 1rem;
    padding: 1rem;
}

.pagination span {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Sorting */
th.sortable {
    cursor: pointer;
    user-select: none;
}
th.sortable:hover {
    color: var(--text);
    background-color: rgba(255,255,255,0.05);
}
th.sortable::after {
    content: ' ↕';
    opacity: 0.3;
    font-size: 0.8em;
}
th.sortable.asc::after { content: ' ↑'; opacity: 1; color: var(--accent); }
th.sortable.desc::after { content: ' ↓'; opacity: 1; color: var(--accent); }

/* Custom Checkbox */
.row-select, #select-all {
    width: 1.1rem;
    height: 1.1rem;
    cursor: pointer;
    accent-color: var(--accent);
}