/* Variables de couleurs de Congonet 24 */
:root {
    --primary-blue: #0A4A87;
    --dark-blue: #052342;
    --light-blue: #eef5fc;
    --accent-blue: #00A8FF;
    --text-color: #333;
    --white: #ffffff;
    --transition: all 0.3s ease;
}

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

body {
    background-color: var(--light-blue);
    color: var(--text-color);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Barre de navigation */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 8%;
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo {
    font-size: 26px;
    font-weight: bold;
    color: var(--dark-blue);
    letter-spacing: 1px;
}

.logo span {
    color: var(--accent-blue);
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark-blue);
    font-weight: 600;
    transition: var(--transition);
}

.nav-links a:hover, .nav-links a.active {
    color: var(--accent-blue);
}

/* Conteneur de contact principal */
.contact-container {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 60px 8%;
}

.contact-card {
    background: var(--white);
    width: 100%;
    max-width: 1000px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(10, 74, 135, 0.08);
    display: grid;
    grid-template-columns: 1.2fr 1.8fr;
    overflow: hidden;
}

/* Section Infos de Gauche */
.contact-info {
    background: linear-gradient(135deg, var(--dark-blue), var(--primary-blue));
    color: var(--white);
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-info h2 {
    font-size: 28px;
    margin-bottom: 15px;
    font-weight: 700;
}

.contact-info .subtitle {
    color: #b0c4de;
    margin-bottom: 40px;
    font-size: 15px;
}

.info-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 20px;
}

.info-item i {
    font-size: 20px;
    color: var(--accent-blue);
    background: rgba(255, 255, 255, 0.05);
    width: 50px;
    height: 50px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
}

.info-item h3 {
    font-size: 13px;
    color: #8faac9;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 3px;
}

.info-item p {
    font-size: 15px;
}

/* Section Formulaire de Droite */
.contact-form-wrapper {
    padding: 40px;
}

.contact-form-wrapper h3 {
    font-size: 22px;
    color: var(--dark-blue);
    margin-bottom: 25px;
}

/* Alertes PHP */
.alert {
    padding: 12px 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
    font-weight: 600;
}

.alert.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Formulaire */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 13px;
    font-weight: 600;
    color: #555;
}

.form-group label i {
    color: var(--primary-blue);
    margin-right: 5px;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e1e8ed;
    border-radius: 8px;
    background-color: #fbfcfd;
    font-size: 14px;
    transition: var(--transition);
    outline: none;
}

.form-group input:focus, .form-group textarea:focus {
    border-color: var(--accent-blue);
    background-color: var(--white);
    box-shadow: 0 0 10px rgba(0, 168, 255, 0.1);
}

.form-group textarea {
    resize: vertical;
}

.btn-submit {
    padding: 14px 28px;
    background-color: var(--primary-blue);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

.btn-submit:hover {
    background-color: var(--accent-blue);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 168, 255, 0.2);
}

/* Footer */
footer {
    background-color: var(--dark-blue);
    color: var(--white);
    padding: 20px 8%;
    margin-top: auto;
}

.footer-bottom {
    text-align: center;
    font-size: 14px;
    color: #8faac9;
}

/* Responsive (Tablettes et Mobiles) */
@media (max-width: 768px) {
    .contact-card {
        grid-template-columns: 1fr;
    }
    .contact-info {
        padding: 30px;
    }
    .contact-form-wrapper {
        padding: 30px;
    }
}