/* =============================================================================
   ORNA GROUP — Pages d'authentification
   Connexion, inscription, mot de passe oublié
   -----------------------------------------------------------------------------
   Reprend les jetons de styles.css (couleurs, typographie, espacements, ombres).
   Aucune valeur de couleur n'est réécrite en dur : un changement de charte dans
   :root se propage ici.
   ========================================================================== */

/* -----------------------------------------------------------------------------
   1. Ossature
   -------------------------------------------------------------------------- */

.auth {
    position: relative;
    min-height: 78vh;
    display: flex;
    align-items: center;
    padding: var(--spacing-xl) 0;
    background:
        radial-gradient(circle at 12% 18%, var(--primary-pink-pale) 0%, transparent 42%),
        radial-gradient(circle at 88% 82%, var(--primary-blue-pale) 0%, transparent 45%),
        var(--off-white);
    overflow: hidden;
}

/* Deux colonnes : présentation à gauche, formulaire à droite. */
.auth-shell {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    max-width: 1080px;
    margin: 0 auto;
}

/* -----------------------------------------------------------------------------
   2. Panneau de présentation
   -------------------------------------------------------------------------- */

.auth-aside {
    position: relative;
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-light) 55%, #4a2a7e 100%);
    color: var(--white);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

/* Halos décoratifs. aria-hidden côté balisage : purement ornemental. */
.auth-orb {
    position: absolute;
    border-radius: var(--border-radius-full);
    filter: blur(46px);
    opacity: 0.5;
    pointer-events: none;
}

.auth-orb--pink {
    width: 260px;
    height: 260px;
    top: -70px;
    right: -60px;
    background: var(--primary-pink);
    animation: auth-drift 14s ease-in-out infinite;
}

.auth-orb--gold {
    width: 200px;
    height: 200px;
    bottom: -60px;
    left: -50px;
    background: var(--primary-gold);
    animation: auth-drift 18s ease-in-out infinite reverse;
}

.auth-aside__inner {
    position: relative;
    z-index: 1;
}

.auth-aside__eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    margin-bottom: var(--spacing-md);
    border: 1px solid rgba(255, 255, 255, 0.28);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    backdrop-filter: blur(6px);
}

.auth-aside h2 {
    margin: 0 0 var(--spacing-sm);
    font-family: var(--font-secondary);
    font-size: clamp(1.75rem, 3vw, 2.4rem);
    line-height: 1.2;
    color: var(--white);
}

.auth-aside h2 em {
    font-style: normal;
    color: var(--primary-gold-light);
}

.auth-aside__lead {
    margin: 0 0 var(--spacing-lg);
    color: rgba(255, 255, 255, 0.82);
    line-height: 1.65;
}

.auth-perks {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 14px;
}

.auth-perks li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.9);
}

.auth-perks__icon {
    flex: 0 0 30px;
    height: 30px;
    display: grid;
    place-items: center;
    border-radius: var(--border-radius-full);
    background: rgba(255, 255, 255, 0.16);
    font-size: 0.95rem;
}

/* -----------------------------------------------------------------------------
   3. Carte de formulaire
   -------------------------------------------------------------------------- */

.auth-card {
    position: relative;
    padding: var(--spacing-xl);
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-radius: var(--border-radius-lg);
    background: var(--white);
    box-shadow: var(--shadow-lg);
}

.auth-card__head {
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.auth-card__head h1 {
    margin: 0 0 6px;
    font-family: var(--font-secondary);
    font-size: 1.7rem;
    color: var(--primary-blue);
}

.auth-card__head p {
    margin: 0;
    color: var(--text-light);
    font-size: 0.94rem;
}

/* -----------------------------------------------------------------------------
   4. Champs à étiquette flottante
   -------------------------------------------------------------------------- */

.auth-field {
    position: relative;
    margin-bottom: var(--spacing-md);
}

.auth-field input,
.auth-field textarea {
    width: 100%;
    padding: 22px 16px 9px;
    border: 1.5px solid var(--medium-gray);
    border-radius: var(--border-radius-sm);
    background: var(--white);
    font-family: var(--font-primary);
    font-size: 1rem;
    color: var(--text-dark);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.auth-field input::placeholder {
    color: transparent;
}

.auth-field label {
    position: absolute;
    top: 15px;
    left: 16px;
    color: var(--text-light);
    font-size: 1rem;
    pointer-events: none;
    transform-origin: left top;
    transition: transform var(--transition-fast), color var(--transition-fast);
}

/* L'étiquette remonte dès que le champ est actif ou rempli.
   :placeholder-shown impose un placeholder sur chaque input — il est rendu
   transparent ci-dessus, il ne sert qu'à ce test. */
.auth-field input:focus + label,
.auth-field input:not(:placeholder-shown) + label,
.auth-field textarea:focus + label,
.auth-field textarea:not(:placeholder-shown) + label {
    transform: translateY(-9px) scale(0.76);
    color: var(--primary-pink);
}

.auth-field input:focus,
.auth-field textarea:focus {
    outline: none;
    border-color: var(--primary-pink);
    box-shadow: 0 0 0 4px rgba(233, 30, 140, 0.12);
}

/* Trait animé sous le champ actif. */
.auth-field__bar {
    position: absolute;
    left: 16px;
    right: 16px;
    bottom: 1px;
    height: 2px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--primary-pink), var(--primary-gold));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

.auth-field input:focus ~ .auth-field__bar,
.auth-field textarea:focus ~ .auth-field__bar {
    transform: scaleX(1);
}

/* Champ obligatoire non renseigné, après une tentative d'envoi. */
.auth-field input:user-invalid {
    border-color: var(--danger);
}

.auth-field__hint {
    display: block;
    margin-top: 6px;
    color: var(--text-light);
    font-size: 0.8rem;
}

/* Bouton d'affichage du mot de passe */
.auth-field__reveal {
    position: absolute;
    top: 50%;
    right: 10px;
    transform: translateY(-50%);
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;
    border: 0;
    border-radius: var(--border-radius-sm);
    background: transparent;
    color: var(--text-light);
    font-size: 1rem;
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.auth-field__reveal:hover {
    background: var(--light-gray);
    color: var(--primary-blue);
}

.auth-field__reveal:focus-visible {
    outline: 2px solid var(--primary-pink);
    outline-offset: 2px;
}

/* Deux champs sur une ligne */
.auth-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
}

/* -----------------------------------------------------------------------------
   5. Jauge de robustesse du mot de passe
   -------------------------------------------------------------------------- */

.auth-meter {
    margin: -8px 0 var(--spacing-md);
}

.auth-meter__track {
    height: 5px;
    border-radius: 999px;
    background: var(--medium-gray);
    overflow: hidden;
}

.auth-meter__fill {
    height: 100%;
    width: 0;
    border-radius: 999px;
    background: var(--danger);
    transition: width var(--transition-normal), background var(--transition-normal);
}

.auth-meter__fill[data-level="2"] { background: var(--warning); }
.auth-meter__fill[data-level="3"] { background: var(--info); }
.auth-meter__fill[data-level="4"] { background: var(--success); }

.auth-meter__label {
    display: block;
    margin-top: 6px;
    font-size: 0.78rem;
    color: var(--text-light);
}

/* -----------------------------------------------------------------------------
   6. Boutons
   -------------------------------------------------------------------------- */

.auth-submit {
    position: relative;
    width: 100%;
    padding: 15px 24px;
    border: 0;
    border-radius: var(--border-radius-sm);
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
    color: var(--white);
    font-family: var(--font-primary);
    font-size: 1.02rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    cursor: pointer;
    overflow: hidden;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.auth-submit:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-blue);
}

.auth-submit:active {
    transform: translateY(0);
}

.auth-submit:focus-visible {
    outline: 3px solid var(--primary-gold);
    outline-offset: 2px;
}

/* Reflet traversant au survol. */
.auth-submit::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(115deg, transparent 35%, rgba(255, 255, 255, 0.32) 50%, transparent 65%);
    transform: translateX(-120%);
}

.auth-submit:hover::after {
    animation: auth-shine 0.9s ease;
}

/* État d'envoi : le libellé cède la place à un indicateur. */
.auth-submit[aria-busy="true"] {
    pointer-events: none;
    opacity: 0.75;
}

.auth-submit[aria-busy="true"] .auth-submit__label {
    visibility: hidden;
}

.auth-submit[aria-busy="true"]::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-top-color: var(--white);
    border-radius: var(--border-radius-full);
    animation: auth-spin 0.7s linear infinite;
}

/* -----------------------------------------------------------------------------
   7. Liens et séparateur
   -------------------------------------------------------------------------- */

.auth-inline {
    display: flex;
    justify-content: flex-end;
    margin: -8px 0 var(--spacing-md);
}

.auth-inline a,
.auth-card__foot a {
    position: relative;
    color: var(--primary-pink);
    font-size: 0.9rem;
    text-decoration: none;
}

.auth-inline a::after,
.auth-card__foot a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 100%;
    height: 1px;
    background: currentColor;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition-fast);
}

.auth-inline a:hover::after,
.auth-card__foot a:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.auth-card__foot {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--light-gray);
    text-align: center;
    color: var(--text-light);
    font-size: 0.92rem;
}

.auth-card__foot a {
    font-weight: 600;
}

/* Case à cocher des conditions */
.auth-check {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: var(--spacing-md);
    font-size: 0.88rem;
    color: var(--text-dark);
    line-height: 1.5;
}

.auth-check input {
    flex: 0 0 auto;
    width: 18px;
    height: 18px;
    margin-top: 2px;
    accent-color: var(--primary-pink);
    cursor: pointer;
}

/* -----------------------------------------------------------------------------
   8. Messages
   -------------------------------------------------------------------------- */

.auth-alert {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 13px 16px;
    margin-bottom: var(--spacing-md);
    border-radius: var(--border-radius-sm);
    border-left: 3px solid var(--danger);
    background: rgba(220, 53, 69, 0.08);
    color: #8c1d28;
    font-size: 0.9rem;
    line-height: 1.5;
    animation: auth-shake 0.45s ease;
}

.auth-alert--success {
    border-left-color: var(--success);
    background: rgba(40, 167, 69, 0.09);
    color: #1a6b2b;
    animation: auth-rise 0.45s ease;
}

.auth-alert--info {
    border-left-color: var(--info);
    background: rgba(23, 162, 184, 0.09);
    color: #10606d;
    animation: auth-rise 0.45s ease;
}

.auth-alert ul {
    margin: 0;
    padding-left: 18px;
}

/* -----------------------------------------------------------------------------
   9. Animations
   -------------------------------------------------------------------------- */

@keyframes auth-rise {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: none; }
}

@keyframes auth-shine {
    to { transform: translateX(120%); }
}

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

@keyframes auth-shake {
    0%, 100%   { transform: translateX(0); }
    20%, 60%   { transform: translateX(-6px); }
    40%, 80%   { transform: translateX(6px); }
}

@keyframes auth-drift {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50%      { transform: translate(18px, -22px) scale(1.08); }
}

/* Entrée échelonnée : chaque élément marqué apparaît légèrement après le
   précédent, ce qui guide le regard vers le formulaire. */
[data-auth-reveal] {
    opacity: 0;
    animation: auth-rise 0.55s ease forwards;
}

[data-auth-reveal="1"] { animation-delay: 0.05s; }
[data-auth-reveal="2"] { animation-delay: 0.14s; }
[data-auth-reveal="3"] { animation-delay: 0.23s; }
[data-auth-reveal="4"] { animation-delay: 0.32s; }
[data-auth-reveal="5"] { animation-delay: 0.41s; }

/* -----------------------------------------------------------------------------
   10. Responsive
   -------------------------------------------------------------------------- */

@media (max-width: 900px) {
    .auth-shell {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        max-width: 540px;
    }

    /* Le formulaire passe en premier : sur mobile, l'argumentaire ne doit pas
       repousser le champ de saisie sous la ligne de flottaison. */
    .auth-main  { order: 1; }
    .auth-aside { order: 2; }

    .auth-aside {
        padding: var(--spacing-lg);
    }
}

@media (max-width: 576px) {
    .auth {
        padding: var(--spacing-lg) 0;
    }

    .auth-card {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .auth-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
}

/* -----------------------------------------------------------------------------
   11. Accessibilité — mouvement réduit
   -------------------------------------------------------------------------- */

/* Respecte le réglage système « réduire les animations ». Les mouvements de
   grande amplitude déclenchent des troubles vestibulaires chez certaines
   personnes : le contenu reste visible, seule l'animation disparaît. */
@media (prefers-reduced-motion: reduce) {
    .auth-orb,
    .auth-submit::after,
    .auth-submit[aria-busy="true"]::before {
        animation: none !important;
    }

    [data-auth-reveal],
    .auth-alert {
        opacity: 1;
        animation: none !important;
    }

    .auth-submit:hover {
        transform: none;
    }

    *,
    *::before,
    *::after {
        transition-duration: 0.01ms !important;
    }
}