.auth-page {
    --primary: var(--theme-text-accent, #4f46e5);
    --primary-hover: var(--theme-text-accent, #4338ca);
    --primary-light: var(--theme-bg-hover, rgba(79, 70, 229, 0.12));
    --success: var(--theme-success, #16a34a);
    --error: var(--theme-error, #dc2626);
    --warning: var(--theme-warning, #d97706);
    --info: var(--theme-info, #2563eb);
    --text-primary: var(--theme-text-primary, #0f172a);
    --text-secondary: var(--theme-text-secondary, #475569);
    --text-muted: var(--theme-text-muted, #64748b);
    --bg-primary: var(--theme-bg-card, #ffffff);
    --bg-secondary: var(--theme-bg-secondary, #f8fafc);
    --bg-tertiary: var(--theme-bg-tertiary, #f1f5f9);
    --border-color: var(--theme-border-light, #e2e8f0);
    --shadow-sm: 0 1px 2px var(--theme-shadow-dark, rgba(15, 23, 42, 0.08));
    --shadow-md: 0 4px 6px -1px var(--theme-shadow-dark, rgba(15, 23, 42, 0.12));
    --shadow-lg: 0 10px 15px -3px var(--theme-shadow-dark, rgba(15, 23, 42, 0.16));
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;

    background: linear-gradient(135deg, #f0f9ff 0%, #fdf4ff 50%, #f0fdf4 100%);
}

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

body {
    font-family: 'Inter', system-ui, sans-serif;
}

.auth-container {
    width: 100%;
    max-width: 420px;
}

.auth-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 2.5rem;
}

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

.auth-logo i {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.auth-logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

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

.auth-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    text-align: center;
}

.auth-subtitle {
    color: var(--text-secondary);
    font-size: 0.875rem;
    text-align: center;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.9375rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.input-group {
    position: relative;
}

.input-group .form-input {
    padding-left: 2.75rem;
}

.input-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.password-toggle {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0;
}

.password-toggle:hover {
    color: var(--text-secondary);
}

.form-row {
    display: flex;
    gap: 1rem;
}

.form-row .form-group {
    flex: 1;
}

.form-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-checkbox input {
    width: 1rem;
    height: 1rem;
    accent-color: var(--primary);
}

.form-checkbox label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.form-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.form-link {
    font-size: 0.875rem;
    color: var(--primary);
    text-decoration: none;
}

.form-link:hover {
    text-decoration: underline;
}

.auth-page .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.auth-page .btn-primary {
    width: 100%;
    background: var(--primary);
    color: var(--theme-text-heading);
}

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

.auth-page .btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.auth-page .btn-outline:hover {
    background: var(--bg-tertiary);
}

.divider {
    display: flex;
    align-items: center;
    margin: 1.5rem 0;
    color: var(--text-muted);
    font-size: 0.8125rem;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

.divider span {
    padding: 0 1rem;
}

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.auth-footer p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.auth-footer a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.auth-footer a:hover {
    text-decoration: underline;
}

.flash-messages {
    margin-bottom: 1.5rem;
}

.flash-message {
    padding: 0.875rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.flash-message:last-child {
    margin-bottom: 0;
}

.flash-success {
    background: var(--theme-bg-card);
    color: var(--theme-text-primary);
    border: 1px solid var(--theme-success);
}

.flash-error {
    background: var(--theme-bg-card);
    color: var(--theme-text-primary);
    border: 1px solid var(--theme-error);
}

.flash-warning {
    background: var(--theme-bg-card);
    color: var(--theme-text-primary);
    border: 1px solid var(--theme-warning);
}

.flash-info {
    background: var(--theme-bg-card);
    color: var(--theme-text-primary);
    border: 1px solid var(--theme-info);
}

.password-strength {
    margin-top: 0.5rem;
}

.password-strength-bar {
    height: 4px;
    background: var(--bg-tertiary);
    border-radius: 2px;
    overflow: hidden;
}

.password-strength-fill {
    height: 100%;
    transition: width 0.3s, background 0.3s;
}

.password-strength-text {
    font-size: 0.75rem;
    margin-top: 0.25rem;
    color: var(--text-muted);
}

@media (max-width: 480px) {
    .auth-card {
        padding: 1.5rem;
    }

    .form-row {
        flex-direction: column;
        gap: 0;
    }
}