.contact-container {
    max-width: 1140px;
    margin: 40px auto;
    padding: 0 15px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

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

.contact-header h1 {
    font-size: 2.2rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 8px;
}

.contact-header p {
    color: #7f8c8d;
    font-size: 1rem;
}

/* 4 Thẻ liên hệ nhanh */
.contact-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 50px;
}

.contact-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 25px 20px;
    text-align: center;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
    border-color: #2563eb;
}

/* Biểu tượng từng ô */
.card-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.card-hotline .card-icon { background-color: #e0f2fe; color: #0284c7; }
.card-email .card-icon { background-color: #fef3c7; color: #d97706; }
.card-zalo .card-icon { background-color: #dbeafe; color: #2563eb; }
.card-facebook .card-icon { background-color: #f3e8ff; color: #9333ea; }

.card-label {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: #64748b;
    margin-bottom: 6px;
    text-transform: uppercase;
}

.card-value {
    font-size: 1rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 6px;
}

.card-desc {
    font-size: 0.82rem;
    color: #94a3b8;
}

/* Bố cục Form và Thông tin bên phải */
.contact-main-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
}

@media (max-width: 992px) {
    .contact-main-layout {
        grid-template-columns: 1fr;
    }
}

/* Form gửi tin nhắn */
.form-section h2 {
    font-size: 1.4rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 6px;
}

.form-section p {
    font-size: 0.9rem;
    color: #64748b;
    margin-bottom: 25px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 0.88rem;
    font-weight: 600;
    color: #334155;
    margin-bottom: 6px;
}

.form-control-custom {
    width: 100%;
    padding: 10px 16px;
    border: 1px solid #cbd5e1;
    border-radius: 20px;
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.2s;
    box-sizing: border-box;
}

.form-control-custom:focus {
    border-color: #2563eb;
}

.btn-send {
    background-color: #2563eb;
    color: #ffffff;
    border: none;
    padding: 12px 28px;
    border-radius: 25px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: background 0.2s;
}

.btn-send:hover {
    background-color: #1d4ed8;
}

/* Box thông tin công ty bên phải */
.info-box {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 20px;
}

.info-box h3 {
    font-size: 1rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 16px;
}

.info-item {
    display: flex;
    justify-content: space-between;
    font-size: 0.88rem;
    padding: 10px 0;
    border-bottom: 1px dashed #e2e8f0;
}

.info-item:last-child {
    border-bottom: none;
}

.info-label {
    color: #64748b;
    width: 30%;
}

.info-val {
    color: #0f172a;
    font-weight: 500;
    width: 70%;
    text-align: right;
}

/* Tag kết nối mạng xã hội */
.social-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.social-tag {
    background: #e2e8f0;
    color: #334155;
    padding: 6px 14px;
    border-radius: 15px;
    font-size: 0.82rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s;
}

.social-tag:hover {
    background: #2563eb;
    color: #ffffff;
}