/* CSS Variables for theming */
:root {
    --color-primary: #4f46e5;
    --color-primary-hover: #4338ca;
    --color-secondary: #6b7280;
    --color-secondary-hover: #4b5563;
    --color-success: #10b981;
    --color-error: #ef4444;
    --color-warning: #f59e0b;
    --color-bg: #f9fafb;
    --color-card: #ffffff;
    --color-text: #111827;
    --color-text-secondary: #6b7280;
    --color-border: #e5e7eb;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* Reset and base */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
    min-height: 100vh;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Card */
.card {
    background: var(--color-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.5rem;
}

/* Auth page styles */
.auth-card {
    max-width: 400px;
    margin: 4rem auto;
}

.logo {
    text-align: center;
    margin-bottom: 2rem;
}

.logo h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-primary);
}

.subtitle {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Tabs */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 1.5rem;
}

.tab {
    flex: 1;
    padding: 0.75rem 1rem;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
}

.tab:hover {
    color: var(--color-text);
}

.tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

/* Forms */
.form {
    display: none;
}

.form.active {
    display: block;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.375rem;
    color: var(--color-text);
}

.form-group input {
    width: 100%;
    padding: 0.625rem 0.875rem;
    font-size: 0.875rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: all 0.2s;
}

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

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

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

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

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.8125rem;
}

/* Messages */
.message {
    display: none;
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
    margin-top: 1rem;
    text-align: center;
}

.message.success {
    background-color: #d1fae5;
    color: #065f46;
}

.message.error {
    background-color: #fee2e2;
    color: #991b1b;
}

/* Header */
.header {
    background: var(--color-card);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 2rem;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
}

.header-user {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-user span {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

/* Main content */
.main {
    padding: 2rem 0;
}

.section {
    margin-bottom: 2rem;
}

.section h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-text);
}

/* Plans grid */
.plans-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.plan-card {
    display: flex;
    flex-direction: column;
}

.plan-info {
    flex: 1;
}

.plan-name {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.plan-description {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

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

.plan-period {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

/* Subscription status badge */
.plan-status {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
}

.plan-status.active {
    background-color: #d1fae5;
    color: #065f46;
}

.plan-status.canceled,
.plan-status.inactive {
    background-color: #fee2e2;
    color: #991b1b;
}

.plan-status.past_due {
    background-color: #fef3c7;
    color: #92400e;
}

.plan-status.trialing {
    background-color: #dbeafe;
    color: #1e40af;
}

/* Price options */
.prices-list {
    margin-top: 1rem;
}

.price-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 0;
    border-top: 1px solid var(--color-border);
}

.price-option:first-child {
    border-top: none;
}

.price-amount {
    font-size: 1.125rem;
    font-weight: 600;
}

.price-interval {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    flex: 1;
}

/* Loading state */
.loading {
    color: var(--color-text-secondary);
    text-align: center;
    padding: 2rem;
}

/* Fixed message for dashboard */
body .message {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    min-width: 300px;
    box-shadow: var(--shadow-lg);
}

/* Responsive */
@media (max-width: 640px) {
    .container {
        padding: 1rem;
    }

    .header {
        padding: 1rem;
    }

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

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

    .auth-card {
        margin: 2rem 1rem;
    }
}