:root {
    --primary-color: #142035; /*#444E5F*/
    --accent-color: cadetblue;
    --text-color: azure;
    --error-color: #ff4d4d;
    --success-color: #4CAF50;
    --shadow-color: #444E5F; /* rgba(0, 0, 0, 0.2);*/
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--primary-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

    /* Suppression de l'image de fond problématique */
    body::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: linear-gradient(135deg, #142035 0%, #1a2942 50%, #142035 100%);
        opacity: 0.8;
        z-index: -1;
    }

.container {
    display: flex;
    width: 80%;
    max-width: 1000px;
    background-color: rgba(20, 32, 53, 0.85);
    box-shadow: 0 15px 35px var(--shadow-color);
    border-radius: 12px;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.branding {
    flex: 1;
    background: linear-gradient(135deg, rgba(26, 41, 66, 0.7), rgba(26, 41, 66, 0.9));
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 40px;
    position: relative;
}

.logo-container {
    display: flex;
    align-items: center;
    margin-bottom: 30px;
}

.tagline {
    color: var(--text-color);
    text-align: center;
    font-weight: 300;
    margin-bottom: 50px;
    opacity: 0.9;
}

.features {
    color: var(--text-color);
    opacity: 0.8;
}

    .features ul {
        list-style-type: none;
    }

        .features ul li {
            margin-bottom: 15px;
            display: flex;
            align-items: center;
        }

            .features ul li::before {
                content: '✓';
                margin-right: 10px;
                color: var(--accent-color);
                font-weight: bold;
            }

.login-form {
    flex: 1;
    padding: 50px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background-color: #fff;
}

.login-header {
    text-align: center;
    margin-bottom: 40px;
}

    .login-header h2 {
        color: var(--primary-color);
        font-size: 28px;
        font-weight: 700;
        margin-bottom: 10px;
    }

    .login-header p {
        color: #777;
        font-size: 16px;
    }

.form-group {
    margin-bottom: 25px;
    position: relative;
}

    .form-group label {
        display: block;
        margin-bottom: 8px;
        color: #555;
        font-weight: 500;
        font-size: 14px;
    }

    .form-group input {
        width: 100%;
        padding: 15px;
        border: 1px solid #ddd;
        border-radius: 6px;
        font-size: 15px;
        transition: border 0.3s ease;
    }

        .form-group input:focus {
            border-color: var(--accent-color);
            outline: none;
            box-shadow: 0 0 0 2px rgba(95, 158, 160, 0.2);
        }

        .form-group input::placeholder {
            color: #bbb;
        }

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

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    font-size: 14px;
}

.remember-me {
    display: flex;
    align-items: center;
}

    .remember-me input {
        margin-right: 8px;
    }

.forgot-password {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.login-button {
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: 6px;
    padding: 15px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
    margin-bottom: 20px;
}

    .login-button:hover {
        background-color: var(--primary-color);
        transform: translateY(-2px);
    }

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

    .login-button:disabled {
        background-color: #ccc;
        cursor: not-allowed;
        transform: none;
    }

.separator {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 20px 0;
    color: #777;
}

    .separator::before,
    .separator::after {
        content: '';
        flex: 1;
        border-bottom: 1px solid #ddd;
    }

    .separator::before {
        margin-right: 10px;
    }

    .separator::after {
        margin-left: 10px;
    }

.social-login {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 30px;
}

.social-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 1px solid #ddd;
    background-color: white;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

    .social-btn:hover {
        background-color: #f5f5f5;
        transform: translateY(-2px);
    }

    .social-btn:disabled {
        opacity: 0.5;
        cursor: not-allowed;
        transform: none;
    }

.register-prompt {
    text-align: center;
    color: #777;
    font-size: 14px;
}

.register-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

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

/* Messages d'erreur et de validation */
.validation-summary-errors {
    background-color: #fff5f5;
    border: 1px solid var(--error-color);
    border-radius: 6px;
    padding: 15px;
    margin-bottom: 20px;
    color: var(--error-color);
}

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

.field-validation-error {
    color: var(--error-color);
    font-size: 12px;
    margin-top: 5px;
    display: block;
}

.alert {
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 6px;
    border: 1px solid transparent;
}

.alert-danger {
    background-color: #fff5f5;
    border-color: var(--error-color);
    color: var(--error-color);
}

.alert-success {
    background-color: #f0fff4;
    border-color: var(--success-color);
    color: var(--success-color);
}

.alert-info {
    background-color: #f0f8ff;
    border-color: #17a2b8;
    color: #17a2b8;
}

.loading {
    position: relative;
}

    .loading::after {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 20px;
        height: 20px;
        border: 2px solid #f3f3f3;
        border-top: 2px solid var(--accent-color);
        border-radius: 50%;
        animation: spin 1s linear infinite;
    }

@keyframes spin {
    0% {
        transform: translate(-50%, -50%) rotate(0deg);
    }

    100% {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

/* Affichage responsive */
@media (max-width: 992px) {
    .container {
        flex-direction: column;
        width: 90%;
    }

    .branding {
        padding: 30px;
    }

    .login-form {
        padding: 30px;
    }
}

@media (max-width: 576px) {
    .container {
        width: 95%;
    }

    .branding {
        padding: 20px;
    }

    .login-form {
        padding: 20px;
    }

    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    .social-login {
        flex-wrap: wrap;
    }
}