:root {
    --bg-primary: #050711;
    --bg-secondary: rgba(0, 0, 0, 0.35);
    --text-primary: #FFFFFF;
    --text-secondary: #E3E3E3;
    --accent: #2BC3FF;
    --accent-glow: rgba(43, 195, 255, 0.35);
    --border-color: rgba(43, 195, 255, 0.3);
    --success: #00ff88;
    --warning: #ffaa00;
    --danger: #ff3232;
}

[data-theme="light"] {
    --bg-primary: #F5F7FA;
    --bg-secondary: rgba(255, 255, 255, 0.9);
    --text-primary: #1a1a1a;
    --text-secondary: #4a4a4a;
    --accent: #2BC3FF;
    --accent-glow: rgba(43, 195, 255, 0.2);
    --border-color: rgba(43, 195, 255, 0.5);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: all 0.3s ease;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

.navbar {
    background: var(--bg-secondary);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 0 18px var(--accent-glow);
}

.navbar-brand {
    font-size: 24px;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 0 0 10px var(--accent-glow);
}

.theme-toggle {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 10px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.theme-toggle:hover {
    transform: scale(1.05);
    box-shadow: 0 0 12px var(--accent-glow);
    border-color: var(--accent);
}

.theme-toggle svg {
    color: var(--accent);
}

.sidebar-toggle {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--accent);
    padding: 10px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    font-size: 20px;
}

.sidebar-toggle:hover {
    transform: scale(1.05);
    box-shadow: 0 0 12px var(--accent-glow);
    border-color: var(--accent);
}

.sidebar {
    position: fixed;
    left: 0;
    top: 71px;
    width: 250px;
    height: calc(100vh - 71px);
    background: var(--bg-secondary);
    backdrop-filter: blur(10px);
    border-right: 1px solid var(--border-color);
    padding: 20px;
    overflow-y: auto;
    transition: transform 0.3s ease;
    z-index: 100;
}

.sidebar.collapsed {
    transform: translateX(-100%);
}

.sidebar a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 12px 16px;
    margin: 5px 0;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.sidebar a:hover {
    background: rgba(43, 195, 255, 0.15);
    color: var(--accent);
    transform: translateX(5px);
}

.main-content {
    margin-left: 270px;
    padding: 30px;
    transition: margin-left 0.3s ease;
}

.main-content.no-sidebar {
    margin-left: 0;
}

.main-content.sidebar-collapsed {
    margin-left: 0;
}

.card {
    background: var(--bg-secondary);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 25px;
    margin: 20px 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    transition: all 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--accent-glow);
}

.card-header {
    font-size: 22px;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
    text-shadow: 0 0 8px var(--accent-glow);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.stat-card {
    background: var(--bg-secondary);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    transition: all 0.2s ease;
}

.stat-card:hover {
    transform: scale(1.01);
    box-shadow: 0 0 18px var(--accent-glow);
}

.stat-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--accent);
    text-shadow: 0 0 10px var(--accent-glow);
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 5px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-label-small {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 5px;
}

.positive {
    color: var(--success);
}

.negative {
    color: var(--danger);
}

.btn {
    background: var(--accent);
    color: #000;
    border: none;
    padding: 12px 24px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-block;
    box-shadow: 0 0 12px var(--accent-glow);
}

.btn:hover {
    transform: scale(1.01);
    box-shadow: 0 0 18px var(--accent-glow);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    box-shadow: none;
}

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

.btn-success {
    background: var(--success);
    color: #000;
}

.form-group {
    margin: 15px 0;
}

.form-group label {
    display: block;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 12px;
    border-radius: 6px;
    font-size: 14px;
    transition: all 0.2s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 12px var(--accent-glow);
}

.table-wrapper {
    overflow-x: auto;
    margin: 20px 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-secondary);
    backdrop-filter: blur(10px);
}

th {
    background: rgba(43, 195, 255, 0.15);
    color: var(--accent);
    padding: 12px;
    text-align: left;
    font-weight: 600;
    border-bottom: 1px solid var(--border-color);
}

td {
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

tr:hover {
    background: rgba(43, 195, 255, 0.05);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-secondary);
    backdrop-filter: blur(10px);
}

.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.badge-success {
    background: var(--success);
    color: #000;
}

.badge-warning {
    background: var(--warning);
    color: #000;
}

.badge-danger {
    background: var(--danger);
    color: #fff;
}

.badge-info {
    background: var(--accent);
    color: #000;
}

.alert {
    padding: 15px 20px;
    border-radius: 8px;
    margin: 20px 0;
    border-left: 4px solid;
}

.alert-success {
    background: rgba(0, 255, 136, 0.1);
    border-color: var(--success);
    color: var(--success);
}

.alert-warning {
    background: rgba(255, 170, 0, 0.1);
    border-color: var(--warning);
    color: var(--warning);
}

.alert-danger {
    background: rgba(255, 50, 50, 0.1);
    border-color: var(--danger);
    color: var(--danger);
}

.payment-instructions {
    background: rgba(43, 195, 255, 0.1);
    border: 1px solid var(--accent);
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
}

.payment-instructions code {
    background: rgba(0, 0, 0, 0.5);
    padding: 8px 12px;
    border-radius: 4px;
    display: block;
    margin: 8px 0;
    word-break: break-all;
    font-family: 'Courier New', monospace;
    color: var(--accent);
}

.hero {
    text-align: center;
    padding: 80px 20px;
}

.hero h1 {
    font-size: 48px;
    color: var(--accent);
    text-shadow: 0 0 20px var(--accent-glow);
    margin-bottom: 20px;
}

.hero p {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 30px;
}

@media (max-width: 768px) {
    .sidebar {
        display: none;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}