/* =========================================
   TRANG LIÊN HỆ (CONTACT.CSS)
   ========================================= */
.tag-white { color: white !important; }
.tag-lime { color: #52C41A !important; }

/* Hero Liên hệ */
.contact-hero-full { position: relative; width: 100%; min-height: 550px; display: flex; align-items: center; overflow: hidden; padding: 60px 0 100px 0; }
.ch-bg-img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; object-position: center right; z-index: 1; }
.ch-gradient-overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: linear-gradient(90deg, rgba(255, 255, 255, 1) 0%, rgba(255, 255, 255, 1) 35%, rgba(255, 255, 255, 0.85) 50%, rgba(255, 255, 255, 0) 75%); z-index: 2; }
.ch-container { position: relative; z-index: 3; width: 100%; display: flex; justify-content: space-between; align-items: flex-start; }
.ch-content { max-width: 580px; }
.ch-title { font-size: 3.5rem; font-weight: 900; line-height: 1.15; color: #101214; margin: 16px 0 24px 0; letter-spacing: -1px; }
.ch-title .text-orange { color: #FF4D2E !important; }
.ch-desc { font-size: 16px; color: #475467; line-height: 1.6; margin: 0; }

.ch-badge-top-right { text-align: right; color: #101214; font-size: 13px; letter-spacing: 2px; font-weight: 700; }
.ch-badge-top-right strong { display: block; font-size: 14px; letter-spacing: 3px; }
.ch-badge-top-right span { font-size: 11px; font-weight: 500; color: #667085; }

/* Form & Panel */
.contact-main-section { margin-top: -100px; position: relative; z-index: 10; padding-bottom: 80px; }
.contact-grid-layout { display: grid; grid-template-columns: 1.3fr 1fr; gap: 32px; align-items: flex-start; }

.contact-form-card { background: white; border-radius: 20px; padding: 48px; box-shadow: 0 20px 40px rgba(0,0,0,0.1); }
.form-intro { font-size: 15px; color: #667085; line-height: 1.6; margin-bottom: 32px; }

.form-fields-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 24px; }
.form-group { position: relative; }
.form-group.full-width { grid-column: span 2; }

.form-group input, .form-group select, .form-group textarea { width: 100%; border: 1px solid #E5E7EB; border-radius: 8px; padding: 14px 16px; font-family: inherit; font-size: 16px; background: #FAFAFA; box-sizing: border-box; transition: all 0.2s; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: #FF4D2E; background: white; box-shadow: 0 0 0 3px rgba(255,77,46,0.1); }
.form-group input.is-invalid, .form-group select.is-invalid { border-color: #F04438 !important; background: #FFFBFB !important; }
.error-msg { display: block; color: #F04438; font-size: 12px; margin-top: 4px; min-height: 16px; }

.form-success-msg { background: #ECFDF3; color: #027A48; padding: 16px; border-radius: 8px; margin-bottom: 24px; font-weight: 500; font-size: 15px; }
.hidden { display: none !important; }

.btn-submit { width: 100%; padding: 16px; border-radius: 50px; font-size: 16px; cursor: pointer; text-align: center; }
.form-note { font-size: 13px; color: #667085; text-align: center; margin-top: 20px; }

/* Panel thông tin đen */
.contact-info-panel { background: #101214; color: white; border-radius: 20px; padding: 48px; }
.info-items-list { margin-top: 32px; display: flex; flex-direction: column; gap: 24px; }
.info-item { display: flex; gap: 16px; align-items: flex-start; }
.info-icon { color: #FFFFFF !important; flex-shrink: 0; margin-top: 2px; }
.info-icon svg { stroke: #FFFFFF !important; width: 22px; height: 22px; }
.info-item strong { display: block; font-size: 15px; color: white; margin-bottom: 4px; }
.info-item p { font-size: 14px; color: rgba(255,255,255,0.7); line-height: 1.5; margin: 0; }
.info-item p span { color: rgba(255,255,255,0.5); font-size: 13px; }
.info-link { color: #FF4D2E !important; text-decoration: none; font-size: 13px; font-weight: 600; display: inline-block; margin-top: 4px; }

.info-panel-img { width: 100%; border-radius: 12px; overflow: hidden; margin-top: 40px; }
.info-panel-img img { width: 100%; aspect-ratio: 16/9; object-fit: cover; display: block; }

/* 3 Nhu cầu liên hệ */
.needs-section { padding: 40px 0 80px 0; }
.needs-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 40px; }
.need-card { background: white; border: 1px solid #E5E7EB; border-radius: 12px; padding: 32px; transition: transform 0.3s; }
.need-card:hover { transform: translateY(-4px); box-shadow: 0 10px 20px rgba(0,0,0,0.05); }
.need-icon { margin-bottom: 20px; }
.need-card h3 { font-size: 20px; font-weight: 800; color: #101214; margin-bottom: 12px; }
.need-card p { font-size: 15px; color: #475467; line-height: 1.6; margin-bottom: 20px; }

/* FAQ Accordion */
.faq-section { padding: 60px 0 80px 0; border-top: 1px solid #E5E7EB; }
.faq-header-flex { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.faq-view-all { white-space: nowrap; font-weight: 600; font-size: 15px; }
.faq-list { border-top: 1px solid #E5E7EB; }
.faq-item { border-bottom: 1px solid #E5E7EB; padding: 22px 0; transition: all 0.3s ease; }
.faq-item summary { font-size: 17px; font-weight: 700; color: #101214; cursor: pointer; outline: none; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq-item summary::after { content: "+"; font-size: 22px; font-weight: 400; color: #667085; transition: transform 0.3s ease; }
.faq-item[open] summary::after { transform: rotate(45deg); color: #FF4D2E; }
.faq-item p { font-size: 15px; color: #475467; line-height: 1.6; padding-top: 12px; padding-right: 40px; margin: 0; }

/* Văn phòng Hà Nội */
.office-section { padding: 40px 0 80px 0; }
.office-grid { display: grid; grid-template-columns: 7fr 5fr; gap: 60px; align-items: center; }
.office-img img { width: 100%; border-radius: 16px; aspect-ratio: 16/10; object-fit: cover; }
.office-content h2 { font-size: 2.5rem; font-weight: 900; line-height: 1.2; color: #101214; margin: 12px 0 20px 0; }
.office-desc { font-size: 16px; color: #475467; line-height: 1.6; margin-bottom: 24px; }
.office-address { display: flex; gap: 16px; align-items: flex-start; }

/* Responsive Liên hệ */
@media (max-width: 768px) {
    .contact-hero-full { min-height: auto; padding: 40px 0 60px 0; }
    .ch-badge-top-right { display: none; }
    .ch-gradient-overlay { background: linear-gradient(0deg, rgba(255,255,255,1) 20%, rgba(255,255,255,0.9) 60%, transparent 100%); }
    .ch-title { font-size: 2.6rem; }
    
    .contact-main-section { margin-top: -40px; }
    .contact-grid-layout { display: flex; flex-direction: column; gap: 24px; }
    .contact-form-card, .contact-info-panel { padding: 24px; }
    .form-fields-grid { display: flex; flex-direction: column; gap: 16px; }
    .needs-grid, .office-grid { display: flex; flex-direction: column; gap: 24px; }
    .faq-header-flex { flex-direction: column; align-items: flex-start; gap: 12px; }
}