/**
 * Authentication Page Styles
 * Styles for login, registration, email verification, and 2FA pages
 */

/* Auth Container */
.auth-container {
    min-height: calc(100vh - 200px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
    background: linear-gradient(180deg, #f3f4f6 0%, #e5e7eb 100%);
}

/* Auth Card */
.auth-card {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    padding: 2.5rem;
    width: 100%;
    max-width: 450px;
    animation: fadeInUp 0.3s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Auth Header */
.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header h2 {
    color: #1e3a8a;
    font-size: 1.75rem;
    font-weight: 700;
    margin: 0 0 0.5rem 0;
}

.auth-header p {
    color: #6b7280;
    font-size: 0.9375rem;
    margin: 0;
}

.auth-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    border-radius: 50%;
    margin-bottom: 1rem;
    color: white;
}

/* Auth Form */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Form Groups */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    color: #374151;
    font-size: 0.875rem;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"] {
    padding: 0.75rem 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: all 0.2s;
    width: 100%;
    box-sizing: border-box;
}

.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus,
.form-group input[type="password"]:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group input[readonly] {
    background-color: #f9fafb;
    cursor: not-allowed;
}

.form-error {
    color: #ef4444;
    font-size: 0.8125rem;
    display: none;
}

.form-error:empty {
    display: none;
}

.form-hint {
    color: #6b7280;
    font-size: 0.8125rem;
    margin: 0.25rem 0 0 0;
}

/* Password Input Container */
.password-input-container {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input-container input {
    padding-right: 3rem;
}

.password-toggle {
    position: absolute;
    right: 0.75rem;
    background: none;
    border: none;
    color: #6b7280;
    cursor: pointer;
    padding: 0.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s;
}

.password-toggle:hover {
    color: #374151;
}

.password-toggle:focus {
    outline: none;
    color: #3b82f6;
}

/* Password Strength */
.password-strength {
    margin-top: 0.5rem;
}

.password-strength-bar {
    height: 4px;
    background: #e5e7eb;
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 0.25rem;
}

.password-strength-fill {
    height: 100%;
    width: 0%;
    transition: all 0.3s ease;
    background: #ef4444;
}

.password-strength-text {
    font-size: 0.75rem;
    color: #6b7280;
}

/* Checkbox Group */
.checkbox-group {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.875rem;
    color: #374151;
}

.checkbox-label input[type="checkbox"] {
    width: 1rem;
    height: 1rem;
    cursor: pointer;
}

.checkbox-label a {
    color: #3b82f6;
    text-decoration: none;
}

.checkbox-label a:hover {
    text-decoration: underline;
}

.forgot-password {
    color: #3b82f6;
    text-decoration: none;
    font-size: 0.875rem;
}

.forgot-password:hover {
    text-decoration: underline;
}

/* Buttons */
.btn-block {
    width: 100%;
}

.btn-link {
    background: none;
    border: none;
    color: #3b82f6;
    cursor: pointer;
    font-size: 0.875rem;
    padding: 0;
    text-decoration: none;
    transition: color 0.2s;
}

.btn-link:hover {
    color: #1e40af;
    text-decoration: underline;
}

.btn-link:disabled {
    color: #9ca3af;
    cursor: not-allowed;
}

.btn-text,
.btn-loading {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

/* Loading Spinner */
.spinner {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Resend Section */
.resend-section {
    text-align: center;
    padding: 1rem 0;
    border-top: 1px solid #e5e7eb;
}

.resend-section p {
    color: #6b7280;
    font-size: 0.875rem;
    margin: 0 0 0.5rem 0;
}

.btn-countdown {
    color: #6b7280;
    font-size: 0.8125rem;
}

/* Auth Footer */
.auth-footer {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid #e5e7eb;
}

.auth-footer p {
    color: #6b7280;
    font-size: 0.875rem;
    margin: 0;
}

.auth-footer a {
    color: #3b82f6;
    text-decoration: none;
    font-weight: 600;
}

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

/* Alerts */
.alert {
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    margin-bottom: 1rem;
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alert-error {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #991b1b;
}

.alert-success {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    color: #166534;
}

/* Responsive Design */
@media (max-width: 640px) {
    .auth-card {
        padding: 1.5rem;
    }
    
    .auth-header h2 {
        font-size: 1.5rem;
    }
    
    .checkbox-group {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: #1e3a8a;
    color: white;
    padding: 8px 16px;
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}

/* Focus styles for accessibility */
*:focus-visible {
    outline: 2px solid #3b82f6;
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .auth-card {
        border: 2px solid #000;
    }
    
    .form-group input[type="text"],
    .form-group input[type="email"],
    .form-group input[type="password"] {
        border-width: 2px;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .auth-card,
    .alert,
    .spinner {
        animation: none;
    }
}