/* Authentication Pages Stylesheet */
/* Used for: login, register, password reset pages */
/* Requires ai-native.css to be loaded first for CSS variables */

:root {
    /* Auth-specific variables */
    --auth-input-bg: rgba(var(--color-text), 0.05);
    --auth-input-focus-bg: rgba(var(--color-text), 0.08);
    --auth-error: rgb(var(--color-error));
}

/* Auth Container - Full height centered */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    position: relative;
    z-index: 1;
}

/* Auth Card - Main container */
.auth-card {
    background: rgb(var(--color-surface));
    border: 1px solid rgba(var(--color-border), var(--border-opacity));
    border-radius: var(--radius-2xl);
    padding: 3rem;
    max-width: 450px;
    width: 100%;
    box-shadow: 0 20px 60px rgba(var(--color-overlay), 0.3);
    backdrop-filter: blur(10px);
}

/* Large Auth Card - For forms with textareas like leave-a-message */
.auth-card.auth-card-large {
    max-width: 750px;
}

/* Centered Auth Card - For non-form pages like 404 */
.auth-card.auth-card-centered {
    text-align: center;
}

/* Auth Subtitle */
.auth-subtitle {
    color: rgb(var(--color-text-secondary));
    font-size: 1.125rem;
    line-height: 1.6;
    margin: 1.5rem 0;
}

/* Auth Actions - Vertical button/link stack */
.auth-actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
}

.auth-card.auth-card-large .form-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.auth-card.auth-card-large .form-group label {
    font-size: 1.1rem;
    font-weight: 600;
    color: rgb(var(--color-text));
}

.auth-card.auth-card-large input[type="text"] {
    width: 100%;
    box-sizing: border-box;
    padding: 1rem 1.25rem;
    font-size: 1.1rem;
    background: var(--auth-input-bg);
    border: 1px solid rgba(var(--color-border), var(--border-opacity));
    border-radius: var(--radius-lg);
    color: rgb(var(--color-text));
    transition: all 0.2s ease;
}

.auth-card.auth-card-large input[type="text"]:focus {
    outline: none;
    border-color: var(--color-primary);
    background: var(--auth-input-focus-bg);
    box-shadow: 0 0 0 3px rgba(var(--color-info), 0.15);
}

.auth-card.auth-card-large textarea {
    width: 100%;
    box-sizing: border-box;
    min-height: 300px;
    padding: 1rem 1.25rem;
    font-size: 1.1rem;
    background: var(--auth-input-bg);
    border: 1px solid rgba(var(--color-border), var(--border-opacity));
    border-radius: var(--radius-lg);
    color: rgb(var(--color-text));
    resize: vertical;
    font-family: inherit;
    line-height: 1.6;
    transition: all 0.2s ease;
}

.auth-card.auth-card-large textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    background: var(--auth-input-focus-bg);
    box-shadow: 0 0 0 3px rgba(var(--color-info), 0.15);
}

.auth-card.auth-card-large textarea::placeholder,
.auth-card.auth-card-large input::placeholder {
    color: rgb(var(--color-text-disabled));
}

.auth-card.auth-card-large .form-help {
    color: rgb(var(--color-text-secondary));
    font-size: 0.9rem;
}

/* Auth footer link - site standard style */
.auth-footer a {
    color: var(--primary, rgb(var(--color-info)));
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.auth-footer a:hover {
    color: var(--primary-light, rgb(var(--color-success)));
    text-decoration: underline;
}

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

.auth-header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: rgb(var(--color-text));
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.auth-header p {
    color: rgb(var(--color-text-secondary));
    font-size: 1rem;
    line-height: 1.5;
}

/* Form Elements */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label,
.form-group label {
    display: block;
    color: rgb(var(--color-text));
    font-weight: 500;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    letter-spacing: 0.01em;
}

.form-input,
.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"] {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--auth-input-bg);
    border: 1px solid rgba(var(--color-border), var(--border-opacity));
    border-radius: var(--radius-lg);
    color: rgb(var(--color-text));
    font-size: 1rem;
    transition: all 0.2s ease;
    font-family: inherit;
    box-sizing: border-box;
}

.form-input:focus,
.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus,
.form-group input[type="password"]:focus {
    outline: none;
    border-color: rgb(var(--color-primary));
    background: var(--auth-input-focus-bg);
    box-shadow: 0 0 0 3px rgba(var(--color-primary), 0.1);
}

.form-input::placeholder,
.form-group input::placeholder {
    color: rgb(var(--color-text-disabled));
}

.form-input:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Form Messages */
.form-error {
    color: var(--auth-error);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: none;
    padding: 0.75rem 1rem;
    background: rgba(var(--color-error), 0.1);
    border: 1px solid rgba(var(--color-error), 0.2);
    border-radius: var(--radius-md);
}

.form-error.active {
    display: block;
    animation: slideIn 0.3s ease-out;
}

.form-success {
    color: var(--color-primary);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: none;
    padding: 0.75rem 1rem;
    background: rgba(var(--color-primary), 0.1);
    border: 1px solid rgba(var(--color-primary), 0.2);
    border-radius: var(--radius-md);
}

.form-success.active {
    display: block;
    animation: slideIn 0.3s ease-out;
}

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

/* Form Checkbox */
.form-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.form-checkbox input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--color-primary);
}

.form-checkbox label {
    color: rgb(var(--color-text-secondary));
    font-size: 0.875rem;
    cursor: pointer;
    user-select: none;
}

.form-checkbox label:hover {
    color: rgb(var(--color-text));
}

/* Submit Button - inherits from base button style in ai-native.css */
.auth-submit {
    width: 100%;
    margin-bottom: 1rem;
}

.auth-submit:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* Loading State */
.auth-submit.loading {
    position: relative;
    color: transparent;
    pointer-events: none;
}

.auth-submit.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    top: 50%;
    left: 50%;
    margin-left: -10px;
    margin-top: -10px;
    border: 3px solid rgba(var(--color-overlay), 0.3);
    border-top-color: rgb(var(--color-background));
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* Auth Links Section */
.auth-links {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(var(--color-border), var(--border-opacity));
}

.auth-link {
    color: var(--color-primary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: all 0.2s ease;
    font-weight: 500;
}

.auth-link:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

.auth-link-separator {
    color: rgb(var(--color-text-disabled));
    margin: 0 0.5rem;
    user-select: none;
}

/* Back Link */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: rgb(var(--color-text-secondary));
    text-decoration: none;
    font-size: 0.875rem;
    margin-bottom: 2rem;
    transition: all 0.2s ease;
    font-weight: 500;
}

.back-link:hover {
    color: rgb(var(--color-text));
    gap: 0.75rem;
}

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

.password-strength-bar {
    height: 4px;
    background: rgba(var(--color-text), 0.1);
    border-radius: var(--radius-xs);
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.password-strength-fill {
    height: 100%;
    width: 0%;
    transition: all 0.3s ease;
    border-radius: var(--radius-xs);
}

.password-strength-fill.weak {
    width: 33%;
    background: rgb(var(--color-error));
}

.password-strength-fill.medium {
    width: 66%;
    background: rgb(var(--color-warning));
}

.password-strength-fill.strong {
    width: 100%;
    background: var(--color-primary);
}

.password-strength-text {
    font-size: 0.75rem;
    color: rgb(var(--color-text-secondary));
}

.password-strength-text.weak {
    color: rgb(var(--color-error));
}

.password-strength-text.medium {
    color: rgb(var(--color-warning));
}

.password-strength-text.strong {
    color: var(--color-primary);
}

/* Toast Notifications */
.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--color-primary);
    color: rgb(var(--color-background));
    padding: 1rem 1.5rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    box-shadow: 0 4px 20px rgba(var(--color-primary), 0.3);
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 9999;
    max-width: 300px;
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

.toast.error {
    background: rgb(var(--color-error));
    color: white;
}

/* Responsive Design */
@media (max-width: 768px) {
    .auth-container {
        padding: 1rem;
    }

    .auth-card {
        padding: 2rem 1.5rem;
        border-radius: var(--radius-xl);
    }

    .auth-header h1 {
        font-size: 1.75rem;
    }

    .auth-header p {
        font-size: 0.9375rem;
    }

    .form-input {
        padding: 0.75rem 0.875rem;
        font-size: 0.9375rem;
    }

    .auth-submit {
        padding: 0.875rem;
        font-size: 0.9375rem;
    }
}

@media (max-width: 480px) {
    .auth-card {
        padding: 1.5rem 1rem;
    }

    .auth-header h1 {
        font-size: 1.5rem;
    }

    .back-link {
        font-size: 0.8125rem;
    }
}

/* Print Styles */
@media print {
    .auth-container,
    .auth-card {
        display: none;
    }
}

/* Form Messages */
.success-message {
    padding: 1rem;
    margin-bottom: 1rem;
    background-color: rgba(var(--color-primary), 0.1);
    border: 1px solid rgba(var(--color-primary), 0.3);
    border-radius: var(--radius-lg);
    color: var(--color-primary);
    font-size: 0.875rem;
    text-align: center;
}

.error-message {
    padding: 1rem;
    margin-bottom: 1rem;
    background-color: rgba(var(--color-error), 0.1);
    border: 1px solid rgba(var(--color-error), 0.3);
    border-radius: var(--radius-lg);
    color: rgb(var(--color-error));
    font-size: 0.875rem;
    text-align: center;
}

.form-warning {
    padding: 1rem;
    margin-bottom: 1rem;
    background-color: rgba(var(--color-warning), 0.1);
    border: 1px solid rgba(var(--color-warning), 0.3);
    border-radius: var(--radius-lg);
    color: rgb(var(--color-warning));
    font-size: 0.875rem;
    text-align: center;
}

/* Invitation Banner */
.invitation-banner {
    background: linear-gradient(135deg, rgba(var(--color-primary), 0.15) 0%, rgba(var(--color-primary), 0.05) 100%);
    border: 1px solid rgba(var(--color-primary), 0.3);
    border-radius: var(--radius-xl);
    padding: 1.25rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.invitation-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.invitation-text {
    color: rgb(var(--color-text));
    font-size: 1rem;
}

.invitation-text strong {
    color: var(--color-primary);
}

.invitation-message {
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid rgba(var(--color-text), 0.1);
    font-style: italic;
    color: rgb(var(--color-text-secondary));
    font-size: 0.875rem;
}

/* Email Preferences Checkbox Group */
.checkbox-group {
    margin-top: 1.5rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: rgba(var(--color-text), 0.03);
    border: 1px solid rgba(var(--color-border), var(--border-opacity));
    border-radius: var(--radius-lg);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--color-primary);
    flex-shrink: 0;
}

.checkbox-text {
    color: rgb(var(--color-text));
    font-size: 0.9375rem;
    font-weight: 500;
}

.checkbox-description {
    margin-top: 0.75rem;
    padding-left: 2rem;
    color: rgb(var(--color-text-secondary));
    font-size: 0.8125rem;
    line-height: 1.5;
}

.checkbox-description ul {
    margin: 0.5rem 0;
    padding-left: 1.25rem;
}

.checkbox-description li {
    margin-bottom: 0.25rem;
}

.checkbox-description em {
    display: block;
    margin-top: 0.5rem;
    color: rgb(var(--color-text-disabled));
    font-size: 0.75rem;
}