/**
 * LYVRE V3 - Layout Auth (Login/Register)
 * Design centré, minimal, élégant
 */

/* ==========================================================================
   LAYOUT STRUCTURE
   ========================================================================== */

body.auth-layout {
    min-height: 100vh;
    min-height: 100dvh;
    height: auto !important;
    display: block;
    padding: var(--space-4);
    padding-top: var(--space-8);
    padding-bottom: env(safe-area-inset-bottom, var(--space-8));
    position: static;
    overflow: visible !important;
    -webkit-overflow-scrolling: touch;
}

.auth-container {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 420px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    /* Permet les interactions tactiles */
    touch-action: manipulation;
}

/* ==========================================================================
   LOGO
   ========================================================================== */

.auth-logo {
    display: block;
    margin-bottom: var(--space-8);
    transition: transform var(--transition-base);
}

.auth-logo:hover {
    transform: scale(1.05);
}

.auth-logo img {
    height: 48px;
    width: auto;
}

/* ==========================================================================
   CARD
   ========================================================================== */

.auth-card {
    width: 100%;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    box-shadow: 
        0 4px 6px -1px rgba(0, 0, 0, 0.1),
        0 2px 4px -2px rgba(0, 0, 0, 0.1),
        0 0 0 1px rgba(255, 255, 255, 0.05);
}

.auth-title {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    text-align: center;
    margin-bottom: var(--space-2);
    color: var(--foreground);
}

.auth-subtitle {
    font-size: var(--text-sm);
    color: var(--muted-foreground);
    text-align: center;
    margin-bottom: var(--space-6);
}

/* ==========================================================================
   FORMULAIRES
   ========================================================================== */

.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.auth-form .form-group {
    margin-bottom: 0;
}

.auth-form .btn {
    width: 100%;
    margin-top: var(--space-2);
}

/* Options (remember me, forgot password) */
.auth-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: var(--space-2);
}

.auth-options label {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--muted-foreground);
    cursor: pointer;
}

.auth-forgot-link {
    font-size: var(--text-sm);
    color: var(--accent);
    transition: color var(--transition-fast);
}

.auth-forgot-link:hover {
    color: var(--accent-hover);
}

/* Séparateur */
.auth-divider {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin: var(--space-6) 0;
}

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

.auth-divider span {
    font-size: var(--text-sm);
    color: var(--muted-foreground);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Liens alternatifs */
.auth-alternate {
    text-align: center;
    margin-top: var(--space-6);
    padding-top: var(--space-6);
    border-top: 1px solid var(--border);
}

.auth-alternate p {
    font-size: var(--text-sm);
    color: var(--muted-foreground);
}

.auth-alternate a {
    color: var(--accent);
    font-weight: var(--font-medium);
    transition: color var(--transition-fast);
}

.auth-alternate a:hover {
    color: var(--accent-hover);
}

/* Social login */
.auth-social {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.auth-social-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-3);
    background: var(--card-hover);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--foreground);
    transition: 
        background-color var(--transition-fast),
        border-color var(--transition-fast);
    cursor: pointer;
}

.auth-social-btn:hover {
    background: var(--muted);
    border-color: var(--border-hover);
}

.auth-social-btn svg {
    width: 20px;
    height: 20px;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.auth-footer {
    margin-top: var(--space-8);
    text-align: center;
}

.auth-footer p {
    font-size: var(--text-xs);
    color: var(--muted-foreground);
    margin-bottom: var(--space-2);
}

.auth-footer-links {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
}

.auth-footer-links a {
    font-size: var(--text-xs);
    color: var(--muted-foreground);
    transition: color var(--transition-fast);
}

.auth-footer-links a:hover {
    color: var(--accent);
}

/* ==========================================================================
   BACKGROUND
   ========================================================================== */

.auth-background {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}

.auth-bg-gradient {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 20% 0%, hsla(48, 100%, 50%, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 100%, hsla(25, 100%, 45%, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, hsla(210, 50%, 20%, 0.3) 0%, transparent 70%);
}

.auth-bg-pattern {
    position: absolute;
    inset: 0;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width: 480px) {
    body.auth-layout {
        padding: var(--space-3);
        padding-top: var(--space-4);
        padding-bottom: var(--space-6);
        /* Force le scroll natif sur mobile */
        overflow: auto !important;
        -webkit-overflow-scrolling: touch;
    }

    .auth-card {
        padding: var(--space-4);
    }

    .auth-title {
        font-size: var(--text-xl);
    }

    .auth-options {
        flex-direction: column;
        gap: var(--space-3);
        align-items: flex-start;
    }

    .auth-footer-links {
        flex-wrap: wrap;
        gap: var(--space-2) var(--space-4);
    }
    
    /* Réduction de l'espacement pour la section beta key */
    .beta-key-header {
        margin-bottom: var(--space-4);
    }
    
    .beta-key-icon {
        width: 60px;
        height: 60px;
        margin-bottom: var(--space-3);
    }
    
    .beta-key-icon svg {
        width: 30px;
        height: 30px;
    }
    
    .beta-key-header h3 {
        font-size: var(--text-lg);
    }
    
    .beta-key-header p {
        font-size: var(--text-xs);
    }
    
    .auth-logo {
        margin-bottom: var(--space-4);
    }
    
    .auth-logo img {
        height: 36px;
    }
    
    .auth-footer {
        margin-top: var(--space-4);
    }
}

/* ==========================================================================
   ANIMATIONS
   ========================================================================== */

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

.auth-card {
    animation: authFadeIn 0.4s ease-out;
}

.auth-logo {
    animation: authFadeIn 0.4s ease-out 0.1s both;
}

.auth-footer {
    animation: authFadeIn 0.4s ease-out 0.2s both;
}

/* ==========================================================================
   SOCIAL LOGIN BUTTONS (login/register pages)
   ========================================================================== */

.social-login {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.btn-social {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.875rem 1.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--card);
    color: var(--foreground);
    font-size: 0.95rem;
    font-weight: var(--font-medium);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.btn-social:hover {
    background: var(--card-hover);
    border-color: var(--border-hover);
}

.btn-google:hover {
    border-color: #4285f4;
}

.btn-facebook:hover {
    border-color: #1877f2;
}

.btn-email {
    background: transparent;
}

.social-icon {
    flex-shrink: 0;
}

/* Divider */
.divider {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 1.5rem 0;
    color: var(--muted-foreground);
    font-size: var(--text-sm);
}

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

/* ==========================================================================
   REGISTRATION METHOD SELECTION
   ========================================================================== */

.method-selection {
    text-align: center;
}

.social-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* ==========================================================================
   SOCIAL AUTH FORM (Google/Facebook screens)
   ========================================================================== */

.social-form {
    text-align: center;
}

.btn-back {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    margin-bottom: 1.5rem;
    background: transparent;
    border: none;
    color: var(--muted-foreground);
    font-size: var(--text-sm);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.btn-back:hover {
    color: var(--foreground);
}

.social-auth-container {
    padding: 2rem;
    background: var(--card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}

.social-auth-header {
    margin-bottom: 2rem;
}

.social-icon-large {
    width: 80px;
    height: 80px;
    margin: 0 auto 1rem;
    padding: 1.25rem;
    border-radius: 50%;
    background: var(--card-hover);
    display: flex;
    align-items: center;
    justify-content: center;
}

.social-auth-header h3 {
    margin: 0 0 0.5rem;
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    color: var(--foreground);
}

.social-auth-header p {
    margin: 0;
    color: var(--muted-foreground);
    font-size: var(--text-sm);
}

.btn-google-auth,
.btn-facebook-auth {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    width: 100%;
    padding: 1rem 2rem;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-weight: var(--font-medium);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.btn-google-auth {
    background: #4285f4;
    color: white;
}

.btn-google-auth:hover {
    background: #3367d6;
}

.btn-facebook-auth {
    background: #1877f2;
    color: white;
}

.btn-facebook-auth:hover {
    background: #166fe5;
}

.auth-disclaimer {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
    font-size: var(--text-xs);
    color: var(--muted-foreground);
}

.auth-disclaimer a {
    color: var(--accent);
}

/* ==========================================================================
   EMAIL FORM (Registration)
   ========================================================================== */

.email-form .auth-form {
    text-align: left;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

@media (max-width: 480px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

.required {
    color: var(--error);
}

/* ==========================================================================
   PASSWORD INPUT
   ========================================================================== */

.password-input-wrapper {
    position: relative;
}

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

.password-toggle {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    color: var(--muted-foreground);
    transition: color var(--transition-fast);
}

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

.password-toggle svg {
    width: 20px;
    height: 20px;
}

.password-toggle .hidden {
    display: none;
}

/* ==========================================================================
   CHECKBOX LABEL
   ========================================================================== */

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
    font-size: var(--text-sm);
    color: var(--muted-foreground);
    line-height: 1.5;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    flex-shrink: 0;
    accent-color: var(--accent);
}

.checkbox-label a {
    color: var(--accent);
}

/* ==========================================================================
   BETA KEY STEP
   ========================================================================== */

.beta-key-step {
    text-align: center;
}

.beta-key-header {
    margin-bottom: var(--space-6);
}

.beta-key-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-4);
    border-radius: 50%;
    background: linear-gradient(135deg, hsla(280, 70%, 50%, 0.2) 0%, hsla(200, 80%, 50%, 0.2) 100%);
    border: 2px solid hsla(200, 80%, 50%, 0.3);
}

.beta-key-icon svg {
    width: 40px;
    height: 40px;
    color: hsl(200, 80%, 65%);
}

.beta-key-header h3 {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--foreground);
    margin: 0 0 var(--space-2);
}

.beta-key-header p {
    font-size: var(--text-sm);
    color: var(--muted-foreground);
    line-height: 1.6;
    margin: 0;
}

.beta-key-form {
    margin-bottom: var(--space-6);
}

.beta-key-form .form-group {
    text-align: left;
    margin-bottom: var(--space-4);
}

.beta-key-input {
    text-align: center;
    font-family: var(--font-mono);
    font-size: var(--text-lg) !important;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.beta-key-input::placeholder {
    text-transform: none;
    letter-spacing: normal;
}

.beta-key-form .btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
}

.beta-key-form .btn svg {
    width: 20px;
    height: 20px;
}

.beta-key-footer {
    padding-top: var(--space-4);
    border-top: 1px solid var(--border);
}

.beta-key-footer p {
    font-size: var(--text-sm);
    color: var(--muted-foreground);
    margin: var(--space-2) 0;
}

.beta-key-footer a {
    color: var(--accent);
    font-weight: var(--font-medium);
    transition: color var(--transition-fast);
}

.beta-key-footer a:hover {
    color: var(--accent-hover);
}

/* ==========================================================================
   USERNAME INPUT WITH GENERATOR
   ========================================================================== */

.form-group-username {
    margin-bottom: var(--space-4);
}

.username-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.username-input-wrapper .form-input {
    flex: 1;
    padding-right: 3.5rem;
}

.btn-generate-username {
    position: absolute;
    right: 6px;
    top: 50%;
    transform: translateY(-50%);
    width: 34px;
    height: 34px;
    padding: 0;
    border: none;
    border-radius: var(--radius);
    background: var(--accent);
    color: var(--accent-foreground, #fff);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    z-index: 2;
}

.btn-generate-username:hover {
    background: var(--accent-hover);
    transform: translateY(-50%) scale(1.05);
}

.btn-generate-username:active {
    transform: translateY(-50%) scale(0.95);
}

.btn-generate-username svg {
    width: 18px;
    height: 18px;
}

.btn-generate-username.generating svg {
    animation: spin-generate 0.6s linear infinite;
}

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

/* Username Feedback (status + hint) */
.username-feedback {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 0.35rem;
    min-height: 1.25rem;
}

.username-hint {
    margin-left: auto;
    font-size: var(--text-xs) !important;
    color: var(--muted-foreground);
}

/* Username Status Indicator - Compact */
.username-status {
    display: none;
    align-items: center;
    gap: 0.25rem;
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
}

.username-status .status-icon {
    font-size: 0.85rem;
    line-height: 1;
}

.username-status .status-text {
    white-space: nowrap;
}

.username-status.status-success {
    display: flex;
    color: hsl(142, 76%, 40%);
}

.username-status.status-error {
    display: flex;
    color: hsl(0, 84%, 60%);
}

.username-status.status-checking {
    display: flex;
    color: var(--muted-foreground);
}

.username-status.status-checking .status-icon {
    animation: spin-icon 0.8s linear infinite;
}

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

/* Input States */
.form-input.input-success {
    border-color: hsl(142, 76%, 36%);
    box-shadow: 0 0 0 2px hsla(142, 76%, 36%, 0.15);
}

.form-input.input-success:focus {
    border-color: hsl(142, 76%, 40%);
    box-shadow: 0 0 0 3px hsla(142, 76%, 36%, 0.2);
}

.form-input.input-error {
    border-color: hsl(0, 84%, 60%);
    box-shadow: 0 0 0 2px hsla(0, 84%, 60%, 0.15);
}

.form-input.input-error:focus {
    border-color: hsl(0, 84%, 65%);
    box-shadow: 0 0 0 3px hsla(0, 84%, 60%, 0.2);
}