:root {
    --bg-color: #0f172a;
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --danger-color: #ef4444;
    --danger-hover: #dc2626;
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-color);
    background-image: radial-gradient(circle at 15% 50%, rgba(59, 130, 246, 0.15), transparent 25%),
                      radial-gradient(circle at 85% 30%, rgba(139, 92, 246, 0.15), transparent 25%);
    color: var(--text-primary);
    min-height: 100vh;
}

/* Glassmorphism Classes */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.glass-table {
    background: rgba(30, 41, 59, 0.4);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    overflow: hidden;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 3rem;
    position: sticky;
    top: 0;
    z-index: 10;
    border-bottom: 1px solid var(--glass-border);
}

header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    background: linear-gradient(to right, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.container {
    max-width: 1100px;
    margin: 3rem auto;
    padding: 0 1.5rem;
}

/* Login Page specific */
.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 2.5rem;
    border-radius: 16px;
    text-align: center;
}

.login-container h2 {
    margin-bottom: 2rem;
    background: linear-gradient(to right, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.tab-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.tab-btn.active {
    color: #fff;
    background: var(--primary-color);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.tab-content {
    display: none;
    animation: fadeIn 0.4s ease;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.header-action {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

/* Buttons */
.btn {
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn.primary {
    background: var(--primary-color);
    color: #fff;
}
.btn.primary:hover {
    background: var(--primary-hover);
}

.btn.secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
}
.btn.secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn.danger {
    background: rgba(239, 68, 68, 0.2);
    color: #fca5a5;
    border: 1px solid rgba(239, 68, 68, 0.3);
}
.btn.danger:hover {
    background: var(--danger-color);
    color: #fff;
}

.btn.sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
}

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

label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

input, select {
    width: 100%;
    padding: 0.75rem 1rem;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: inherit;
    transition: border-color 0.3s;
}

input:focus, select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 1rem 1.5rem;
    text-align: left;
    border-bottom: 1px solid var(--glass-border);
}

th {
    background: rgba(0, 0, 0, 0.2);
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

tr:hover {
    background: rgba(255, 255, 255, 0.03);
}

td {
    color: var(--text-primary);
    font-size: 0.95rem;
}

.action-btns {
    display: flex;
    gap: 0.5rem;
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    z-index: 50;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    align-items: center;
    justify-content: center;
}

.modal.show {
    display: flex;
}

.modal-content {
    width: 90%;
    max-width: 500px;
    padding: 2rem;
    border-radius: 16px;
    position: relative;
    animation: scaleUp 0.3s ease;
}

@keyframes scaleUp {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

.modal-content h3 {
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
}

.close {
    position: absolute;
    right: 1.5rem;
    top: 1.5rem;
    font-size: 1.5rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.2s;
}

.close:hover {
    color: #fff;
}

/* Gallery Styles */
.mt-3 {
    margin-top: 2rem;
}

.gallery-section h4 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 0.5rem;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
}

.gallery-item {
    position: relative;
    cursor: pointer;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--glass-border);
    transition: transform 0.2s;
    background: rgba(0, 0, 0, 0.2);
}

.gallery-item:hover {
    transform: scale(1.05);
    z-index: 2;
    border-color: var(--primary-color);
}

.gallery-item img {
    width: 100%;
    height: 120px;
    object-fit: cover;
    display: block;
}

.gallery-label {
    padding: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
    background: var(--glass-bg);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}