/* ========================================
   KITTYSPLOIT LOGIN STYLES - CENTRÉ AVEC IMAGE DE FOND
   Design centré avec image de fond background_login.png
   ======================================== */

/* Variables CSS cohérentes avec l'app */
:root {
    /* Couleurs principales de l'app */
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #6366f1;
    --secondary-hover: #4f46e5;
    
    /* Couleurs neutres de l'app */
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    
    /* Couleurs d'état */
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --info-color: #0ea5e9;
    
    /* Ombres cohérentes */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Bordures */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

/* Reset et base */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--gray-900);
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Container principal avec image de fond */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 2rem;
}

/* Image de fond */
.auth-background {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('/static/img/background_login.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: -2;
}

.background-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.3) 0%, rgba(30, 41, 59, 0.4) 100%);
    z-index: -1;
}

/* Contenu centré */
.auth-content {
    width: 100%;
    max-width: 450px;
    position: relative;
    z-index: 1;
}

/* Container de connexion */
.login-container {
    width: 100%;
}

/* Carte de connexion */
.login-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-2xl);
    padding: 2rem;
    box-shadow: var(--shadow-2xl);
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

/* Header de connexion */
.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.brand-logo {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #1e293b, #0f172a);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.brand-logo .logo-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: var(--radius-lg);
}

.login-brand h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--gray-900);
    margin: 0;
    line-height: 1.2;
}

/* Invitation Notice */
.invitation-notice {
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.1), rgba(99, 102, 241, 0.1));
    border: 1px solid rgba(14, 165, 233, 0.3);
    border-radius: var(--radius-lg);
    padding: 1rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: fadeIn 0.5s ease-in-out;
}

.invitation-icon {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--info-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1rem;
    box-shadow: var(--shadow-sm);
}

.invitation-text {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
    flex: 1;
}

.invitation-text strong {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-900);
    line-height: 1.2;
}

.invitation-text span {
    font-size: 0.75rem;
    color: var(--gray-600);
    line-height: 1.2;
}

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

/* Alerts */
.alerts-container {
    margin-bottom: 1.5rem;
}

.alert {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem;
    border-radius: var(--radius-lg);
    margin-bottom: 1rem;
    font-size: 0.875rem;
    line-height: 1.5;
}

.alert-danger {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: var(--error-color);
}

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

.alert-warning {
    background: #fffbeb;
    border: 1px solid #fed7aa;
    color: var(--warning-color);
}

.alert-info {
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    color: var(--info-color);
}

.alert-icon {
    font-size: 1.125rem;
    flex-shrink: 0;
    margin-top: 0.125rem;
}

.alert-content {
    flex: 1;
}

/* Formulaire */
.login-form {
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
}

.form-label i {
    font-size: 0.875rem;
    color: var(--gray-500);
}

.input-container {
    position: relative;
}

.form-input {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    background: white;
    transition: var(--transition-normal);
    outline: none;
}

/* Padding spécial pour les inputs avec toggle password */
.input-container:has(.password-toggle) .form-input {
    padding-right: 3rem;
}

/* Fallback pour les navigateurs qui ne supportent pas :has() */
.input-container .form-input[type="password"] {
    padding-right: 3rem;
}

.form-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.input-container.focused .form-input {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}


.password-toggle {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--gray-500);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
}

.password-toggle:hover {
    color: var(--gray-700);
    background: var(--gray-100);
}

.password-toggle:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* S'assurer qu'il n'y a qu'une seule icône */
.password-toggle::before,
.password-toggle::after {
    display: none !important;
}

.password-toggle i {
    font-size: 1rem;
    display: block !important;
}

.password-toggle:disabled {
    opacity: 0.6;
    cursor: wait;
}

/* Effet de décodage pour le mot de passe */
.form-input.decoding {
    animation: charDecode 0.1s ease-out;
}

.form-input.password-revealed {
    animation: passwordDecode 0.6s ease-out;
    position: relative;
}

@keyframes passwordDecode {
    0% {
        background: linear-gradient(90deg, 
            rgba(37, 99, 235, 0.15) 0%, 
            rgba(37, 99, 235, 0.08) 50%, 
            rgba(37, 99, 235, 0.15) 100%);
        box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.25),
                    0 0 20px rgba(37, 99, 235, 0.1);
    }
    50% {
        background: linear-gradient(90deg, 
            rgba(37, 99, 235, 0.2) 0%, 
            rgba(37, 99, 235, 0.12) 50%, 
            rgba(37, 99, 235, 0.2) 100%);
        box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.35),
                    0 0 25px rgba(37, 99, 235, 0.15);
    }
    100% {
        background: white;
        box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    }
}

/* Animation pour les caractères en cours de décodage */
@keyframes charDecode {
    0% {
        opacity: 0.5;
        text-shadow: 0 0 5px rgba(37, 99, 235, 0.3);
    }
    50% {
        opacity: 0.8;
        text-shadow: 0 0 8px rgba(37, 99, 235, 0.5);
    }
    100% {
        opacity: 1;
        text-shadow: none;
    }
}

.form-error {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: var(--error-color);
}

.form-error i {
    font-size: 0.875rem;
}

/* Options du formulaire */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.checkbox-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.form-checkbox {
    display: none;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--gray-700);
}

.checkbox-custom {
    width: 18px;
    height: 18px;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-sm);
    position: relative;
    transition: var(--transition-fast);
}

.form-checkbox:checked + .checkbox-label .checkbox-custom {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.form-checkbox:checked + .checkbox-label .checkbox-custom::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
}

.forgot-link {
    font-size: 0.875rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
}

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

/* Bouton de connexion */
.login-button {
    width: 100%;
    padding: 0.875rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: var(--transition-normal);
    margin-bottom: 1.5rem;
}

.login-button:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--primary-hover), var(--gray-800));
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.login-button:active {
    transform: translateY(0);
}

.login-button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.button-content {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.button-loader {
    display: none;
}

.loader-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.login-button.loading .button-text {
    opacity: 0;
}

.login-button.loading .button-loader {
    display: block;
}

.button-ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: scale(0);
    animation: ripple 0.6s linear;
    pointer-events: none;
}

@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

.button-ripple.animate {
    animation: ripple 0.6s linear;
}

/* Footer */
.login-footer {
    text-align: center;
    margin-bottom: 0;
}

.register-link {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin: 0;
}

.register-link a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
}

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


/* Responsive */
@media (max-width: 768px) {
    .auth-container {
        padding: 1rem;
    }
    
    .login-card {
        padding: 1.5rem;
    }
    
    .login-brand h1 {
        font-size: 1.5rem;
    }
    
    .form-options {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .login-card {
        padding: 1.25rem;
    }
    
    .login-brand h1 {
        font-size: 1.375rem;
    }
    
    .form-input {
        padding: 0.875rem;
    }
    
    .login-button {
        padding: 0.875rem;
    }
}