:root {
    /* Glassmorphism & Dark Green/Black 3D Palette */
    --brand-primary: #FFFFFF;
    --brand-accent: #4CAF50;
    --brand-accent-hover: #45a049;
    
    --bg-gradient: linear-gradient(135deg, #000000 0%, #0a1910 50%, #0d2e1b 100%);
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
    
    --text-primary: #FFFFFF;
    --text-secondary: rgba(255, 255, 255, 0.7);
    
    --input-bg: rgba(0, 0, 0, 0.3);
    --input-border: rgba(255, 255, 255, 0.15);
    --input-focus-border: #4CAF50;
    
    --success-color: #A5D6A7;
    --error-color: #EF9A9A;
    
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

body {
    font-family: var(--font-family);
    background: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* Optional 3D glowing orbs in the background for depth */
body::before, body::after {
    content: '';
    position: fixed;
    border-radius: 50%;
    filter: blur(100px);
    z-index: -1;
    opacity: 0.5;
}

body::before {
    width: 400px;
    height: 400px;
    background: #1B5E20;
    top: -100px;
    left: -100px;
}

body::after {
    width: 500px;
    height: 500px;
    background: #000000;
    bottom: -150px;
    right: -150px;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

/* Header */
.brand-header {
    text-align: center;
    padding: 60px 0 40px;
}

.brand-title {
    font-size: 32px;
    font-weight: 800;
    letter-spacing: 3px;
    color: var(--brand-primary);
    text-transform: uppercase;
    margin-bottom: 5px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.8);
}

.brand-subtitle {
    font-size: 14px;
    font-weight: 500;
    color: var(--brand-accent);
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* Forms - Glassmorphism */
.form-container {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    max-width: 440px;
    margin: 0 auto 50px;
    padding: 40px 32px;
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    border-top: 1px solid rgba(255,255,255,0.2);
    border-left: 1px solid rgba(255,255,255,0.2);
    box-shadow: var(--glass-shadow);
}

.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* 3D Inputs */
.form-control {
    width: 100%;
    padding: 16px;
    font-size: 15px;
    color: var(--text-primary);
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 10px;
    font-family: var(--font-family);
    box-shadow: inset 0 2px 5px rgba(0,0,0,0.5); /* Inner shadow for 3D depth */
    transition: all 0.3s ease;
}

.form-control::placeholder {
    color: rgba(255, 255, 255, 0.3);
}

.form-control:focus {
    outline: none;
    border-color: var(--input-focus-border);
    box-shadow: inset 0 2px 5px rgba(0,0,0,0.5), 0 0 12px rgba(76, 175, 80, 0.4);
    background: rgba(0, 0, 0, 0.5);
}

/* 3D Buttons */
.btn {
    display: inline-block;
    width: 100%;
    padding: 16px;
    font-size: 15px;
    font-weight: 700;
    text-align: center;
    color: #FFFFFF;
    background: linear-gradient(145deg, #2E7D32, #1B5E20);
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-family: var(--font-family);
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 6px 15px rgba(27, 94, 32, 0.4), inset 0 1px 1px rgba(255,255,255,0.3);
    transition: all 0.2s ease;
    text-shadow: 0 1px 2px rgba(0,0,0,0.4);
}

.btn:hover {
    background: linear-gradient(145deg, #338a37, #1e6b24);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(27, 94, 32, 0.6), inset 0 1px 1px rgba(255,255,255,0.4);
}

.btn:active {
    transform: translateY(2px);
    box-shadow: 0 2px 5px rgba(27, 94, 32, 0.4), inset 0 2px 5px rgba(0,0,0,0.5);
}

.btn:disabled {
    background: linear-gradient(145deg, #444, #222);
    color: #888;
    box-shadow: none;
    text-shadow: none;
    cursor: not-allowed;
    transform: none;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 6px 15px rgba(0,0,0,0.3);
}

.btn-small {
    width: auto;
    padding: 12px 24px;
    font-size: 13px;
}

/* Messages */
.alert {
    padding: 16px;
    border-radius: 10px;
    margin-bottom: 24px;
    font-size: 14px;
    font-weight: 500;
    display: none;
    text-align: center;
    backdrop-filter: blur(10px);
}

.alert-success {
    background: rgba(76, 175, 80, 0.2);
    color: var(--success-color);
    border: 1px solid rgba(76, 175, 80, 0.4);
    display: block;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.alert-error {
    background: rgba(244, 67, 54, 0.2);
    color: var(--error-color);
    border: 1px solid rgba(244, 67, 54, 0.4);
    display: block;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

/* Admin Dashboard Specifics */
.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 30px 0;
    border-bottom: 1px solid var(--glass-border);
    margin-bottom: 30px;
}

.admin-header-title {
    font-size: 14px;
    color: var(--brand-accent);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.stats-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 24px;
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    border-top: 1px solid rgba(255,255,255,0.15);
    margin-bottom: 30px;
    display: inline-block;
    box-shadow: var(--glass-shadow);
}

.stats-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stats-value {
    font-size: 32px;
    font-weight: 800;
    color: #FFFFFF;
    margin-top: 4px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

/* Filters */
.filters-section {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 24px;
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    border-top: 1px solid rgba(255,255,255,0.15);
    margin-bottom: 30px;
    box-shadow: var(--glass-shadow);
}

.filters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.filters-grid .form-control {
    background: rgba(0,0,0,0.2); /* slightly lighter for admin inputs */
}

.filters-grid .form-control::-webkit-calendar-picker-indicator {
    filter: invert(1);
    opacity: 0.6;
}

.filters-actions {
    display: flex;
    gap: 16px;
    align-items: center;
}

/* Table - Glassmorphism */
.table-container {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    border-top: 1px solid rgba(255,255,255,0.15);
    overflow-x: auto;
    margin-bottom: 40px;
    box-shadow: var(--glass-shadow);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}

.data-table th, .data-table td {
    padding: 18px 24px;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.data-table th {
    background: rgba(0, 0, 0, 0.2);
    font-size: 12px;
    font-weight: 700;
    color: var(--brand-accent);
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.data-table td {
    font-size: 15px;
    color: #FFFFFF;
}

.data-table tr {
    transition: background 0.2s ease;
}

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

.data-table tr:hover td {
    background: rgba(255, 255, 255, 0.03);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 60px;
}

.page-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.2s ease;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

.page-link:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(0,0,0,0.3);
}

.page-link.active {
    background: linear-gradient(145deg, #2E7D32, #1B5E20);
    color: #FFFFFF;
    border: none;
    box-shadow: 0 4px 15px rgba(27, 94, 32, 0.4), inset 0 1px 1px rgba(255,255,255,0.3);
}

.btn-export {
    margin-left: auto;
}

/* Responsive */
@media (max-width: 768px) {
    .form-container {
        padding: 32px 24px;
        border-radius: 16px;
    }
    .admin-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }
    .filters-actions {
        flex-direction: column;
        align-items: stretch;
    }
    .btn-export {
        margin-left: 0;
        margin-bottom: 12px;
        order: -1;
    }
}