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

:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-tertiary: #1a1a1a;
    --border-color: #2a2a2a;
    --text-primary: #ffffff;
    --text-secondary: #888888;
    --accent: #00ff88;
    --accent-hover: #00cc6a;
    --error: #ff4444;
    --warning: #ffaa00;
    --success: #00ff88;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}

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

.logo {
    font-size: 28px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

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

.subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 32px;
}

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

.form-group label {
    display: block;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-control {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 16px;
    font-family: 'Roboto Mono', monospace;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-align: center;
    transition: border-color 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent);
}

.form-control::placeholder {
    color: var(--text-secondary);
    text-transform: none;
    letter-spacing: normal;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 24px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn-primary {
    width: 100%;
    background: var(--accent);
    color: var(--bg-primary);
}

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

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

.btn-secondary:hover {
    border-color: var(--text-secondary);
}

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

.btn-danger:hover {
    background: #cc3333;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 12px;
}

.alert {
    padding: 14px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
}

.alert-error {
    background: rgba(255, 68, 68, 0.1);
    border: 1px solid var(--error);
    color: var(--error);
}

.alert-success {
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid var(--success);
    color: var(--success);
}

.header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header .logo {
    font-size: 20px;
    margin: 0;
}

.nav {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 16px;
}

.user-key {
    font-family: 'Roboto Mono', monospace;
    font-size: 12px;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    padding: 6px 12px;
    border-radius: 6px;
}

.main {
    padding: 40px 0;
}

.page-header {
    margin-bottom: 32px;
}

.page-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 8px;
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 14px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
}

.stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
}

.stat-value.accent {
    color: var(--accent);
}

.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.card-title {
    font-size: 16px;
    font-weight: 600;
}

.checker-form {
    display: grid;
    gap: 16px;
}

.checker-input {
    display: grid;
    grid-template-columns: 1fr auto auto auto;
    gap: 12px;
}

.checker-input .form-control {
    text-align: left;
    letter-spacing: normal;
    text-transform: none;
}

.checker-input .form-control.small {
    width: 80px;
    text-align: center;
}

.result-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--bg-tertiary);
    border-radius: 8px;
    margin-bottom: 8px;
}

.result-status {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.result-status.live {
    background: var(--success);
    box-shadow: 0 0 8px var(--success);
}

.result-status.dead {
    background: var(--error);
}

.result-status.unknown {
    background: var(--warning);
}

.result-cc {
    font-family: 'Roboto Mono', monospace;
    font-size: 14px;
    flex: 1;
}

.result-brand {
    font-size: 12px;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    padding: 4px 8px;
    border-radius: 4px;
}

.result-message {
    font-size: 13px;
    color: var(--text-secondary);
}

.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 500;
}

td {
    font-size: 14px;
}

.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-admin {
    background: rgba(0, 255, 136, 0.15);
    color: var(--accent);
}

.badge-normal {
    background: rgba(136, 136, 136, 0.15);
    color: var(--text-secondary);
}

.badge-credits {
    background: rgba(0, 170, 255, 0.15);
    color: #00aaff;
}

.badge-rent {
    background: rgba(255, 170, 0, 0.15);
    color: var(--warning);
}

.key-display {
    font-family: 'Roboto Mono', monospace;
    font-size: 13px;
    background: var(--bg-tertiary);
    padding: 4px 8px;
    border-radius: 4px;
}

.actions {
    display: flex;
    gap: 8px;
}

.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 32px;
    width: 100%;
    max-width: 450px;
    margin: 20px;
}

.modal-header {
    margin-bottom: 24px;
}

.modal-title {
    font-size: 18px;
    font-weight: 600;
}

.modal-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.modal-actions .btn {
    flex: 1;
}

.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--text-secondary);
}

.empty-state p {
    margin-bottom: 16px;
}

@media (max-width: 768px) {
    .checker-input {
        grid-template-columns: 1fr;
    }
    
    .checker-input .form-control.small {
        width: 100%;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .header-content {
        flex-wrap: wrap;
        gap: 16px;
    }
    
    .nav {
        order: 3;
        width: 100%;
        justify-content: center;
    }
}