/* ==========================================================================
   ACCOUNT LAYOUT STYLES - ULTRA RESPONSIVE OPTIMISÉ
   ========================================================================== */

/* Variables CSS */
:root {
    --primary-color: #4a5568;
    --secondary-color: #4a5a6b;
    --danger-color: #dc3545;
    --danger-bg: #f8d7da;
    --danger-border: #f5c6cb;
    --danger-text: #721c24;
    --light-gray: #f5f5f5;
    --medium-gray: #edf2f7;
    --dark-gray: #666;
    --text-primary: #333;
    --white: #ffffff;
    --black: #000000;
    --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 0 0 3px rgba(90, 108, 125, 0.1);
    --border-radius: 10px;
    --border-radius-sm: 5px;
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
}

/* ==========================================================================
   BASE STYLES
   ========================================================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--light-gray);
    min-height: 100vh;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
}

/* ==========================================================================
   HEADER STYLES
   ========================================================================== */

.account-header {
    background: var(--primary-color);
    color: var(--white);
    padding: 1rem 0;
    box-shadow: var(--shadow-light);
}

    .account-header .container {
        display: flex;
        justify-content: space-between;
        align-items: center;
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
    }

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--white);
    text-decoration: none;
    transition: opacity var(--transition-medium);
}

    .logo:hover {
        color: var(--white);
        text-decoration: none;
        opacity: 0.9;
    }

.help-icon {
    width: 30px;
    height: 30px;
    background: rgba(255, 255, 255, 1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 14px;
    cursor: pointer;
    transition: all var(--transition-medium);
    flex-shrink: 0;
}

    .help-icon:hover {
        background: rgba(255, 255, 255, 0.3);
        color: var(--white);
    }

/* ==========================================================================
   MAIN CONTENT
   ========================================================================== */

.main-content {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 30px 20px;
    background: var(--white);
}

.account-form-container {
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.account-title {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    text-align: left;
}

.account-subtitle {
    color: var(--dark-gray);
    margin-bottom: 2rem;
    font-size: 0.95rem;
    line-height: 1.4;
    text-align: left;
}

/* ==========================================================================
   FORM STYLES
   ========================================================================== */

.account-form {
    text-align: left;
}

.form-group {
    margin-bottom: 1.5rem;
    width: 100%;
}

    .form-group label {
        display: block;
        margin-bottom: 0.5rem;
        font-weight: 500;
        color: var(--text-primary);
        font-size: 0.95rem;
    }

.form-control {
    width: 100%;
    padding: 12px 15px;
    background: var(--white);
    border: 2px solid var(--black);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: border-color var(--transition-medium), box-shadow var(--transition-medium);
    box-sizing: border-box;
}

    .form-control:focus {
        outline: none;
        border-color: var(--primary-color);
        box-shadow: var(--shadow-medium);
    }

    .form-control.input-validation-error {
        border-color: var(--danger-color);
    }

.btn-account {
    width: 100%;
    padding: 12px;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background var(--transition-medium), transform var(--transition-fast);
    margin-top: 1rem;
}

    .btn-account:hover {
        background: var(--secondary-color);
        transform: translateY(-1px);
    }

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

/* ==========================================================================
   VALIDATION STYLES
   ========================================================================== */

.validation-summary-errors {
    background: var(--danger-bg);
    color: var(--danger-text);
    padding: 15px;
    border-radius: var(--border-radius-sm);
    margin-bottom: 20px;
    border: 1px solid var(--danger-border);
}

    .validation-summary-errors ul {
        margin: 0;
        padding-left: 20px;
    }

.field-validation-error {
    color: var(--danger-color);
    font-size: 0.875rem;
    margin-top: 5px;
    display: block;
}

/* ==========================================================================
   ACCOUNT LINKS
   ========================================================================== */

.account-links {
    margin-top: 2rem;
    text-align: center;
}

    .account-links p {
        margin: 0.5rem 0;
    }

    .account-links a {
        color: var(--primary-color);
        text-decoration: none;
        font-size: 0.9rem;
        transition: opacity var(--transition-fast);
    }

        .account-links a:hover {
            text-decoration: underline;
            opacity: 0.8;
        }

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

.account-footer {
    background: var(--primary-color);
    height: 60px;
    margin-top: auto;
}

/* ==========================================================================
   RESPONSIVE DESIGN - MOBILE FIRST APPROACH
   ========================================================================== */

/* Très petits smartphones - 280px à 320px */
@media (max-width: 320px) {
    .account-header .container {
        padding: 0 10px;
    }

    .logo {
        font-size: 1.1rem;
    }

    .help-icon {
        width: 26px;
        height: 26px;
        font-size: 12px;
    }

    .main-content {
        padding: 15px 10px;
    }

    .account-form-container {
        max-width: 100%;
    }

    .account-title {
        font-size: 1.3rem;
    }

    .account-subtitle {
        font-size: 0.85rem;
        margin-bottom: 1.5rem;
    }

    .form-group {
        margin-bottom: 1rem;
    }

        .form-group label {
            font-size: 0.85rem;
            margin-bottom: 0.4rem;
        }

    .form-control {
        padding: 10px 12px;
        font-size: 0.9rem;
    }

    .btn-account {
        padding: 10px;
        font-size: 0.9rem;
    }

    .validation-summary-errors {
        padding: 12px;
        font-size: 0.85rem;
    }

    .account-links {
        margin-top: 1.5rem;
    }

        .account-links a {
            font-size: 0.85rem;
        }

    .account-footer {
        height: 50px;
    }
}

/* Petits smartphones - 321px à 374px */
@media (min-width: 321px) and (max-width: 374px) {
    .account-header .container {
        padding: 0 12px;
    }

    .logo {
        font-size: 1.2rem;
    }

    .help-icon {
        width: 28px;
        height: 28px;
        font-size: 13px;
    }

    .main-content {
        padding: 18px 12px;
    }

    .account-title {
        font-size: 1.4rem;
    }

    .account-subtitle {
        font-size: 0.88rem;
        margin-bottom: 1.7rem;
    }

    .form-group {
        margin-bottom: 1.2rem;
    }

        .form-group label {
            font-size: 0.88rem;
            margin-bottom: 0.45rem;
        }

    .form-control {
        padding: 10px 13px;
        font-size: 0.95rem;
    }

    .btn-account {
        padding: 11px;
        font-size: 0.95rem;
    }

    .validation-summary-errors {
        padding: 13px;
        font-size: 0.88rem;
    }

    .account-links {
        margin-top: 1.7rem;
    }

        .account-links a {
            font-size: 0.88rem;
        }

    .account-footer {
        height: 52px;
    }
}

/* Smartphones modernes standards - 375px à 413px */
@media (min-width: 375px) and (max-width: 413px) {
    .account-header .container {
        padding: 0 15px;
    }

    .logo {
        font-size: 1.3rem;
    }

    .help-icon {
        width: 29px;
        height: 29px;
        font-size: 13px;
    }

    .main-content {
        padding: 20px 15px;
    }

    .account-title {
        font-size: 1.5rem;
    }

    .account-subtitle {
        font-size: 0.9rem;
        margin-bottom: 1.8rem;
    }

    .form-group {
        margin-bottom: 1.3rem;
    }

        .form-group label {
            font-size: 0.9rem;
        }

    .form-control {
        padding: 11px 14px;
        font-size: 0.97rem;
    }

    .btn-account {
        padding: 11px;
        font-size: 0.97rem;
    }

    .validation-summary-errors {
        padding: 14px;
        font-size: 0.9rem;
    }

    .account-links {
        margin-top: 1.8rem;
    }

    .account-footer {
        height: 55px;
    }
}

/* Smartphones moyens - 414px à 427px */
@media (min-width: 414px) and (max-width: 427px) {
    .account-header .container {
        padding: 0 16px;
    }

    .logo {
        font-size: 1.35rem;
    }

    .main-content {
        padding: 22px 16px;
    }

    .account-title {
        font-size: 1.6rem;
    }

    .account-subtitle {
        font-size: 0.92rem;
        margin-bottom: 1.85rem;
    }

    .form-group {
        margin-bottom: 1.35rem;
    }

    .form-control {
        padding: 11px 14px;
        font-size: 0.98rem;
    }

    .btn-account {
        padding: 11px;
        font-size: 0.98rem;
    }

    .account-footer {
        height: 56px;
    }
}

/* Grands smartphones - 428px à 599px */
@media (min-width: 428px) and (max-width: 599px) {
    .account-header .container {
        padding: 0 18px;
    }

    .logo {
        font-size: 1.4rem;
    }

    .main-content {
        padding: 25px 18px;
    }

    .account-title {
        font-size: 1.65rem;
    }

    .account-subtitle {
        font-size: 0.93rem;
        margin-bottom: 1.9rem;
    }

    .form-group {
        margin-bottom: 1.4rem;
    }

    .form-control {
        padding: 11px 14px;
        font-size: 0.99rem;
    }

    .btn-account {
        padding: 11px;
        font-size: 0.99rem;
    }

    .account-footer {
        height: 58px;
    }
}

/* Smartphones en mode paysage - 568px à 667px landscape */
@media (min-width: 568px) and (max-width: 667px) and (orientation: landscape) {
    .main-content {
        padding: 15px 20px;
    }

    .account-title {
        font-size: 1.4rem;
        margin-bottom: 0.4rem;
    }

    .account-subtitle {
        font-size: 0.88rem;
        margin-bottom: 1.2rem;
    }

    .form-group {
        margin-bottom: 1rem;
    }

    .form-control {
        padding: 10px 14px;
    }

    .btn-account {
        padding: 10px;
        margin-top: 0.5rem;
    }

    .account-links {
        margin-top: 1.2rem;
    }

    .account-footer {
        height: 50px;
    }
}

/* Petites tablettes - 600px à 767px */
@media (min-width: 600px) and (max-width: 767px) {
    .account-header .container {
        padding: 0 20px;
    }

    .logo {
        font-size: 1.45rem;
    }

    .help-icon {
        width: 32px;
        height: 32px;
        font-size: 15px;
    }

    .main-content {
        padding: 28px 20px;
    }

    .account-form-container {
        max-width: 420px;
    }

    .account-title {
        font-size: 1.7rem;
    }

    .account-subtitle {
        font-size: 0.94rem;
    }

    .form-group {
        margin-bottom: 1.45rem;
    }

    .form-control {
        padding: 12px 15px;
    }

    .btn-account {
        padding: 12px;
    }
}

/* Tablettes standard - 768px à 1023px */
@media (min-width: 768px) and (max-width: 1023px) {
    .account-header .container {
        padding: 0 25px;
        max-width: 100%;
    }

    .logo {
        font-size: 1.5rem;
    }

    .help-icon {
        width: 34px;
        height: 34px;
        font-size: 16px;
    }

    .main-content {
        padding: 35px 25px;
    }

    .account-form-container {
        max-width: 450px;
    }

    .account-title {
        font-size: 1.85rem;
    }

    .account-subtitle {
        font-size: 0.96rem;
        margin-bottom: 2.2rem;
    }

    .form-group {
        margin-bottom: 1.6rem;
    }

    .form-control {
        padding: 13px 16px;
        font-size: 1.05rem;
    }

    .btn-account {
        padding: 13px;
        font-size: 1.05rem;
    }

    .account-links a {
        font-size: 0.95rem;
    }

    .account-footer {
        height: 65px;
    }
}

/* Grandes tablettes et petits laptops - 1024px à 1279px */
@media (min-width: 1024px) and (max-width: 1279px) {
    .account-header .container {
        padding: 0 30px;
        max-width: 1100px;
    }

    .logo {
        font-size: 1.5rem;
    }

    .help-icon {
        width: 35px;
        height: 35px;
        font-size: 16px;
    }

    .main-content {
        padding: 40px 30px;
    }

    .account-form-container {
        max-width: 450px;
    }

    .account-title {
        font-size: 1.9rem;
    }

    .account-subtitle {
        font-size: 0.97rem;
        margin-bottom: 2.3rem;
    }

    .form-group {
        margin-bottom: 1.65rem;
    }

    .form-control {
        padding: 13px 16px;
        font-size: 1.05rem;
    }

    .btn-account {
        padding: 13px;
        font-size: 1.05rem;
    }

    .account-footer {
        height: 70px;
    }
}

/* Desktop standard / Laptop - 1280px à 1439px */
@media (min-width: 1280px) and (max-width: 1439px) {
    .account-header .container {
        padding: 0 35px;
        max-width: 1200px;
    }

    .logo {
        font-size: 1.55rem;
    }

    .main-content {
        padding: 45px 35px;
    }

    .account-form-container {
        max-width: 480px;
    }

    .account-title {
        font-size: 2rem;
    }

    .account-subtitle {
        font-size: 1rem;
        margin-bottom: 2.5rem;
    }

    .form-group {
        margin-bottom: 1.75rem;
    }

    .form-control {
        padding: 14px 17px;
        font-size: 1.08rem;
    }

    .btn-account {
        padding: 14px;
        font-size: 1.08rem;
    }

    .account-links a {
        font-size: 0.95rem;
    }

    .account-footer {
        height: 75px;
    }
}

/* Desktop Full HD - 1440px à 1919px */
@media (min-width: 1440px) and (max-width: 1919px) {
    .account-header .container {
        padding: 0 40px;
        max-width: 1300px;
    }

    .logo {
        font-size: 1.6rem;
    }

    .main-content {
        padding: 50px 40px;
    }

    .account-form-container {
        max-width: 500px;
    }

    .account-title {
        font-size: 2.1rem;
    }

    .account-subtitle {
        font-size: 1.02rem;
        margin-bottom: 2.6rem;
    }

    .form-group {
        margin-bottom: 1.85rem;
    }

    .form-control {
        padding: 14px 18px;
        font-size: 1.1rem;
    }

    .btn-account {
        padding: 14px;
        font-size: 1.1rem;
    }

    .account-links a {
        font-size: 0.98rem;
    }

    .account-footer {
        height: 80px;
    }
}

/* Grands écrans (2K, 4K, ultra-wide) - 1920px+ */
@media (min-width: 1920px) {
    .account-header .container {
        padding: 0 50px;
        max-width: 1600px;
    }

    .logo {
        font-size: 1.75rem;
    }

    .help-icon {
        width: 38px;
        height: 38px;
        font-size: 17px;
    }

    .main-content {
        padding: 60px 50px;
    }

    .account-form-container {
        max-width: 550px;
    }

    .account-title {
        font-size: 2.3rem;
    }

    .account-subtitle {
        font-size: 1.08rem;
        margin-bottom: 2.8rem;
    }

    .form-group {
        margin-bottom: 2rem;
    }

        .form-group label {
            font-size: 1.02rem;
        }

    .form-control {
        padding: 16px 20px;
        font-size: 1.15rem;
    }

    .btn-account {
        padding: 16px;
        font-size: 1.15rem;
    }

    .validation-summary-errors {
        padding: 18px;
        font-size: 1rem;
    }

    .field-validation-error {
        font-size: 0.95rem;
    }

    .account-links {
        margin-top: 2.5rem;
    }

        .account-links a {
            font-size: 1.02rem;
        }

    .account-footer {
        height: 90px;
    }
}

/* Mode portrait spécifique pour tablettes */
@media (min-width: 768px) and (max-width: 1024px) and (orientation: portrait) {
    .main-content {
        padding: 40px 30px;
    }

    .account-form-container {
        max-width: 480px;
    }

    .account-title {
        font-size: 2rem;
    }

    .form-control {
        padding: 13px 16px;
    }
}

/* Mode paysage pour tablettes */
@media (min-width: 768px) and (max-width: 1024px) and (orientation: landscape) {
    .main-content {
        padding: 25px 30px;
    }

    .account-title {
        font-size: 1.7rem;
        margin-bottom: 0.4rem;
    }

    .account-subtitle {
        margin-bottom: 1.5rem;
    }

    .form-group {
        margin-bottom: 1.2rem;
    }

    .btn-account {
        margin-top: 0.8rem;
    }

    .account-links {
        margin-top: 1.5rem;
    }
}

/* ==========================================================================
   OPTIMISATIONS SPÉCIFIQUES
   ========================================================================== */

/* Optimisations pour écrans haute résolution */
@media (min-resolution: 2dppx) {
    .logo,
    .account-title {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
}

/* ==========================================================================
   ACCESSIBILITY IMPROVEMENTS
   ========================================================================== */

/* Focus visible pour la navigation au clavier */
.form-control:focus-visible,
.btn-account:focus-visible,
.logo:focus-visible,
.help-icon:focus-visible,
.account-links a:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Amélioration du contraste pour l'accessibilité */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #2d3748;
        --dark-gray: #4a5568;
    }

    .form-control {
        border-width: 3px;
    }
}

/* Réduction des animations pour ceux qui préfèrent */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ==========================================================================
   FIX POUR PROBLÈMES COMMUNS
   ========================================================================== */

/* Fix pour Safari iOS */
@supports (-webkit-touch-callout: none) {
    .main-content {
        -webkit-overflow-scrolling: touch;
    }
}

/* Amélioration de la performance sur mobile */
.account-header,
.main-content {
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    -webkit-perspective: 1000;
    perspective: 1000;
}

/* Empêcher le zoom sur les inputs en iOS */
@media screen and (max-width: 767px) {
    input[type="text"],
    input[type="email"],
    input[type="tel"],
    input[type="password"],
    input[type="number"],
    textarea,
    select {
        font-size: 16px !important;
    }
}

/* ==========================================================================
   PRINT STYLES
   ========================================================================== */

@media print {
    .account-header,
    .account-footer,
    .help-icon,
    .account-links {
        display: none !important;
    }

    .main-content {
        padding: 0;
    }

    body {
        background: var(--white);
    }

    .account-form-container {
        max-width: 100%;
    }
}

/* ==========================================================================
   UTILITY CLASSES
   ========================================================================== */

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

.text-left {
    text-align: left;
}

.mb-0 {
    margin-bottom: 0;
}

.mb-1 {
    margin-bottom: 0.5rem;
}

.mb-2 {
    margin-bottom: 1rem;
}

.mt-0 {
    margin-top: 0;
}

.mt-1 {
    margin-top: 0.5rem;
}

.mt-2 {
    margin-top: 1rem;
}