/**
 * SmartAuth OAuth2/OIDC Server Styles
 *
 * Base styles for login and consent pages.
 * Designed to be clean, accessible, and responsive.
 *
 * Copyright (c) 2025 Eric Seigne <eric.seigne@cap-rel.fr>
 * License: AGPL-3.0+
 */

/* ============================================================================
   CSS Variables
   ============================================================================ */

:root {
    /* Colors */
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-primary-light: #dbeafe;
    --color-success: #22c55e;
    --color-error: #ef4444;
    --color-error-bg: #fef2f2;
    --color-warning: #f59e0b;

    /* Neutrals */
    --color-white: #ffffff;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 200ms ease;
}

/* ============================================================================
   Reset & Base
   ============================================================================ */

*, *::before, *::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--color-gray-900);
    background-color: var(--color-gray-50);
    min-height: 100vh;
}

/* ============================================================================
   Layout
   ============================================================================ */

.login-page,
.consent-page,
.error-page,
.landing-page {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--spacing-md);
}

.login-container,
.consent-container,
.error-container {
    width: 100%;
    max-width: 400px;
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-xl);
}

.landing-container {
    width: 100%;
    max-width: 720px;
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-xl);
}

/* ============================================================================
   Header
   ============================================================================ */

.login-header,
.consent-header,
.error-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.logo {
    max-width: 120px;
    max-height: 60px;
    margin-bottom: var(--spacing-md);
}

h1 {
    margin: 0;
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--color-gray-900);
}

/* ============================================================================
   Forms
   ============================================================================ */

.login-form,
.consent-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-700);
}

input[type="text"],
input[type="email"],
input[type="password"] {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    color: var(--color-gray-900);
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

input[type="text"]::placeholder,
input[type="email"]::placeholder,
input[type="password"]::placeholder {
    color: var(--color-gray-400);
}

/* ============================================================================
   Buttons
   ============================================================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.btn:hover {
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

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

.btn-primary:hover:not(:disabled) {
    background-color: var(--color-primary-hover);
}

.btn-secondary {
    color: var(--color-gray-700);
    background-color: var(--color-gray-100);
    border: 1px solid var(--color-gray-300);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--color-gray-200);
}

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

.btn-danger:hover:not(:disabled) {
    background-color: #dc2626;
}

/* ============================================================================
   Alerts
   ============================================================================ */

.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
}

.alert-error {
    color: var(--color-error);
    background-color: var(--color-error-bg);
    border: 1px solid #fecaca;
}

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

.alert-warning {
    color: #92400e;
    background-color: #fffbeb;
    border: 1px solid #fde68a;
}

/* ============================================================================
   Footer
   ============================================================================ */

.login-footer,
.consent-footer {
    text-align: center;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-gray-200);
}

.login-footer a,
.consent-footer a {
    color: var(--color-primary);
    text-decoration: none;
    font-size: var(--font-size-sm);
}

.login-footer a:hover,
.consent-footer a:hover {
    text-decoration: underline;
}

/* ============================================================================
   Consent Page Specifics
   ============================================================================ */

.client-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--color-gray-50);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

.client-logo {
    width: 48px;
    height: 48px;
    object-fit: contain;
}

.client-name {
    font-weight: 600;
    color: var(--color-gray-900);
}

.client-description {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

.scopes-list {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--spacing-lg) 0;
}

.scopes-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-gray-100);
}

.scopes-list li:last-child {
    border-bottom: none;
}

.scope-icon {
    color: var(--color-success);
    flex-shrink: 0;
}

.scope-description {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.consent-actions {
    display: flex;
    gap: var(--spacing-md);
}

.consent-actions .btn {
    flex: 1;
}

/* ============================================================================
   Error Page Specifics
   ============================================================================ */

.error-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.error-code {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    margin-top: var(--spacing-sm);
}

/* ============================================================================
   Responsive
   ============================================================================ */

@media (max-width: 480px) {
    .login-container,
    .consent-container,
    .error-container {
        padding: var(--spacing-lg);
        box-shadow: none;
        border-radius: 0;
        max-width: none;
    }

    .login-page,
    .consent-page,
    .error-page {
        padding: 0;
    }

    .consent-actions {
        flex-direction: column;
    }
}

/* ============================================================================
   Accessibility
   ============================================================================ */

@media (prefers-reduced-motion: reduce) {
    * {
        transition: none !important;
        animation: none !important;
    }
}

/* Focus visible for keyboard navigation */
:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Screen reader only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ============================================================================
   Landing page
   ============================================================================ */

.landing-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.landing-eyebrow {
    margin: 0 0 var(--spacing-xs) 0;
    color: var(--color-primary);
    font-size: var(--font-size-sm);
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.landing-header h1 {
    margin: 0;
    font-size: var(--font-size-2xl);
    line-height: 1.2;
}

.landing-tagline {
    margin: var(--spacing-sm) 0 0 0;
    color: var(--color-gray-500);
    font-size: var(--font-size-base);
}

/* Kept for backwards compatibility with templates that still use the
   .landing-subtitle class instead of .landing-tagline. */
.landing-subtitle {
    margin: var(--spacing-xs) 0 0 0;
    color: var(--color-gray-500);
    font-size: var(--font-size-base);
}

.landing-cards {
    display: grid;
    gap: var(--spacing-md);
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    margin-bottom: var(--spacing-xl);
}

.landing-card {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    background-color: var(--color-white);
    color: var(--color-gray-900);
    text-decoration: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.landing-card:hover,
.landing-card:focus-visible {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 1px var(--color-primary);
    transform: translateY(-1px);
    outline: none;
}

.landing-card-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-gray-900);
}

.landing-card-desc {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.landing-footer {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-gray-200);
    font-size: var(--font-size-sm);
}

.landing-footer a {
    color: var(--color-gray-500);
    text-decoration: none;
}

.landing-footer a:hover {
    color: var(--color-primary);
    text-decoration: underline;
}

.portal-credits {
    margin: var(--spacing-lg) auto 0 auto;
    padding: var(--spacing-md);
    max-width: 720px;
    color: var(--color-gray-400);
    font-size: var(--font-size-sm);
    text-align: center;
    line-height: 1.6;
}

.portal-credits a {
    color: var(--color-gray-500);
    text-decoration: none;
}

.portal-credits a:hover,
.portal-credits a:focus-visible {
    color: var(--color-primary);
    text-decoration: underline;
}

.portal-heart {
    color: #e11d48;
    font-style: normal;
}

/* Small "PORTAIL SSO" eyebrow shown above the page-specific h1 of every
   non-landing view (Connexion, Inscription, Nouveau mot de passe, ...).
   Mirrors .landing-eyebrow but a touch smaller because the h1 here is
   the page action, not the brand. */
.page-eyebrow {
    margin: 0 0 var(--spacing-xs) 0;
    color: var(--color-primary);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}