/* Container chung */
.contact-container {
    max-width: 1100px;
    margin: 40px auto;
    padding: 0 20px;
    font-family: 'Segoe UI', sans-serif;
}

/* Header Banner */
.contact-header {
    background: linear-gradient(135deg, #009900 0%, #006600 100%);
    color: white;
    text-align: center;
    padding: 60px 20px;
    margin-bottom: 40px;
}
.contact-header h1 { margin: 0; font-size: 2.5rem; font-weight: 700; }
.contact-header p { margin-top: 10px; opacity: 0.9; font-size: 1.1rem; }

/* Grid Layout */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

/* Cột Trái: Info */
.contact-info h3 { color: #333; margin-bottom: 15px; font-weight: 700; border-left: 4px solid #009900; padding-left: 10px; }
.contact-info .desc { color: #666; margin-bottom: 30px; line-height: 1.6; }

.info-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 25px;
}
.info-item i {
    width: 40px; height: 40px;
    background: #e6f7e6;
    color: #009900;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    margin-right: 15px;
    font-size: 18px;
}
.info-item strong { display: block; color: #333; font-size: 16px; margin-bottom: 4px; }
.info-item p, .info-item a { margin: 0; color: #555; text-decoration: none; font-size: 15px; }
.info-item a:hover { color: #009900; }

.social-links { margin-top: 30px; margin-bottom: 30px; }
.social-links a {
    display: inline-block;
    width: 36px; height: 36px;
    background: #f1f1f1;
    color: #555;
    text-align: center; line-height: 36px;
    border-radius: 50%;
    margin-right: 10px; transition: 0.3s;
}
.social-links a:hover { background: #009900; color: white; }

.map-wrapper {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

/* Cột Phải: Form Card */
.contact-form-card {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    border: 1px solid #eee;
}
.contact-form-card h3 { margin-top: 0; margin-bottom: 25px; color: #333; text-align: center; font-weight: 700; }

.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; font-weight: 600; color: #444; font-size: 14px; }
.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px; transition: 0.3s;
}
.form-control:focus { border-color: #009900; outline: none; box-shadow: 0 0 0 3px rgba(0,153,0,0.1); }
.text-danger { color: #dc3545; font-size: 12px; margin-left: 3px; }

.btn-send {
    width: 100%;
    background: #009900;
    color: white;
    border: none;
    padding: 14px;
    border-radius: 6px;
    font-size: 16px; font-weight: bold;
    cursor: pointer; transition: 0.3s;
}
.btn-send:hover { background: #007700; transform: translateY(-2px); }

/* Thông báo thành công */
.alert-success {
    background: #d4edda;
    color: #155724;
    padding: 15px;
    border-radius: 6px;
    margin-bottom: 30px;
    border: 1px solid #c3e6cb;
    display: flex; align-items: center; gap: 10px;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .contact-grid { grid-template-columns: 1fr; }
    .contact-header { padding: 40px 20px; }
}