/* ============================================
   Billing Page Styles
   ============================================ */

.billing-section {
    margin-bottom: var(--spacing-xl, 32px);
}

.billing-section-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md, 16px);
    color: var(--text-primary);
}

/* Current Plan Card */
.current-plan-card {
    background: var(--bg-primary);
    border: 2px solid var(--accent-color, #667eea);
    border-radius: var(--radius-lg, 12px);
    padding: var(--spacing-lg, 24px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-md, 16px);
}

.current-plan-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md, 16px);
}

.current-plan-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.plan-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.plan-badge-free {
    background: #e5e7eb;
    color: #6b7280;
}

.plan-badge-pro {
    background: #dbeafe;
    color: #2563eb;
}

.plan-badge-business {
    background: #ede9fe;
    color: #7c3aed;
}

.current-plan-status {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.current-plan-actions {
    display: flex;
    gap: var(--spacing-sm, 8px);
    flex-wrap: wrap;
}

/* Usage Gauges */
.usage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md, 16px);
}

.usage-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md, 8px);
    padding: var(--spacing-md, 16px);
}

.usage-card-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: var(--spacing-sm, 8px);
}

.usage-card-label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
}

.usage-card-count {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.usage-bar-container {
    height: 8px;
    background: var(--bg-secondary, #f3f4f6);
    border-radius: 4px;
    overflow: hidden;
}

.usage-bar {
    height: 100%;
    border-radius: 4px;
    transition: width 0.5s ease;
}

.usage-bar-green { background: #22c55e; }
.usage-bar-yellow { background: #eab308; }
.usage-bar-red { background: #ef4444; }

.usage-unlimited {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-style: italic;
}

/* Plan Comparison Cards */
.plans-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md, 16px);
}

.plan-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg, 12px);
    padding: var(--spacing-lg, 24px);
    display: flex;
    flex-direction: column;
    position: relative;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.plan-card:hover {
    border-color: var(--accent-color, #667eea);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.plan-card-current {
    border-color: var(--accent-color, #667eea);
    border-width: 2px;
}

.plan-card-popular {
    border-color: #2563eb;
    border-width: 2px;
}

.plan-popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: #2563eb;
    color: white;
    padding: 4px 16px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.plan-card-name {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs, 4px);
}

.plan-card-price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md, 16px);
}

.plan-card-price-unit {
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--text-secondary);
}

.plan-card-features {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--spacing-lg, 24px) 0;
    flex: 1;
}

.plan-card-features li {
    padding: 6px 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.plan-card-features li::before {
    content: "\2713";
    color: #22c55e;
    font-weight: 700;
}

.plan-card-btn {
    display: block;
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: var(--radius-md, 8px);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    transition: background 0.2s, opacity 0.2s;
}

.plan-card-btn-primary {
    background: var(--accent-color, #667eea);
    color: white;
}

.plan-card-btn-primary:hover {
    opacity: 0.9;
}

.plan-card-btn-outline {
    background: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-primary);
}

.plan-card-btn-outline:hover {
    border-color: var(--accent-color, #667eea);
    color: var(--accent-color, #667eea);
}

.plan-card-btn-current {
    background: var(--bg-secondary, #f3f4f6);
    color: var(--text-secondary);
    cursor: default;
}

.plan-card-btn-cancel {
    background: transparent;
    color: #ef4444;
    border: 1px solid #ef4444;
    margin-top: var(--spacing-sm, 8px);
    font-size: 0.85rem;
    padding: 8px;
}

.plan-card-btn-cancel:hover {
    background: #fef2f2;
}

/* Success/Error Notification */
.billing-notification {
    padding: var(--spacing-md, 16px);
    border-radius: var(--radius-md, 8px);
    margin-bottom: var(--spacing-md, 16px);
    font-weight: 500;
}

.billing-notification-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #6ee7b7;
}

.billing-notification-error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

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

    .current-plan-card {
        flex-direction: column;
        align-items: flex-start;
    }

    .usage-grid {
        grid-template-columns: 1fr;
    }
}