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

:root {
    --bg-dark: #0a0e27;
    --bg-secondary: #141b3d;
    --bg-card: #1a2347;
    --accent-cyan: #00d9ff;
    --accent-purple: #9d4edd;
    --accent-pink: #ff006e;
    --text-primary: #e0e7ff;
    --text-secondary: #94a3b8;
    --border-color: #2d3a5f;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-secondary) 100%);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

/* Login Page */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.login-container {
    width: 100%;
    max-width: 450px;
    padding: 2rem;
}

.login-box {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 3rem 2.5rem;
    box-shadow: 0 8px 32px rgba(0, 217, 255, 0.1);
}

.login-title {
    font-size: 1.8rem;
    text-align: center;
    margin-bottom: 2rem;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-input {
    padding: 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.1);
}

.btn-login {
    padding: 1rem;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    border: none;
    border-radius: 8px;
    color: white;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 217, 255, 0.3);
}

.error-message {
    padding: 0.75rem;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger);
    border-radius: 6px;
    color: var(--danger);
    text-align: center;
    font-size: 0.9rem;
}

/* Dashboard */
.dashboard-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 1.5rem;
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.dashboard-header h1 {
    font-size: 2rem;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
}

.btn-logout {
    padding: 0.75rem 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-logout:hover {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 15px rgba(0, 217, 255, 0.2);
}

.usage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1rem;
}

.loading {
    grid-column: 1 / -1;
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Usage Cards */
.usage-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.usage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
}

.usage-card.alert::before {
    background: linear-gradient(90deg, var(--danger), var(--warning));
}

.usage-card:hover {
    border-color: var(--accent-cyan);
    box-shadow: 0 8px 32px rgba(0, 217, 255, 0.15);
    transform: translateY(-2px);
}

.card-header {
    margin-bottom: 0.75rem;
}

.card-vendor {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.15rem;
    color: var(--text-primary);
}

.card-subtitle {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.card-email {
    font-size: 0.7rem;
    color: var(--accent-cyan);
    font-family: 'Courier New', monospace;
}

.usage-stats {
    margin: 0.5rem 0;
}

.stat-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.4rem 0;
    border-bottom: 1px solid var(--border-color);
}

.stat-row:last-child {
    border-bottom: none;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.stat-value {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
}

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

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

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

/* Progress Bar */
.progress-container {
    margin: 0.75rem 0;
}

.progress-label {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.35rem;
    font-size: 0.75rem;
}

.progress-bar {
    width: 100%;
    height: 18px;
    background: var(--bg-secondary);
    border-radius: 9px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
    transition: width 0.5s ease;
    position: relative;
}

.progress-fill.success {
    background: linear-gradient(90deg, #10b981, #34d399);
}

.progress-fill.warning {
    background: linear-gradient(90deg, #f59e0b, #fbbf24);
}

.progress-fill.danger {
    background: linear-gradient(90deg, #ef4444, #f87171);
}

.progress-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-weight: 600;
    font-size: 0.7rem;
    color: white;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* Alert Badge */
.alert-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.35rem 0.75rem;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger);
    border-radius: 4px;
    color: var(--danger);
    font-size: 0.7rem;
    font-weight: 600;
    margin-top: 0.5rem;
}

.alert-icon {
    font-size: 0.9rem;
}

/* Subscription Info */
.subscription-info {
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-color);
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
    font-size: 0.7rem;
}

.info-item {
    display: flex;
    flex-direction: column;
}

.info-label {
    color: var(--text-secondary);
    margin-bottom: 0.15rem;
}

.info-value {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.7rem;
}

/* Error State */
.error-card {
    background: rgba(239, 68, 68, 0.05);
    border-color: var(--danger);
}

.error-message-card {
    color: var(--danger);
    padding: 1rem;
    text-align: center;
}

/* Loading State */
.loading-card {
    min-height: 200px;
}

.loading-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 2rem;
    gap: 1rem;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-cyan);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loading-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* Responsive */
@media (max-width: 768px) {
    .usage-grid {
        grid-template-columns: 1fr;
    }

    .dashboard-header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .subscription-info {
        grid-template-columns: 1fr;
    }
}