/* ==================== BIẾN MÀU – CHỈ KHAI BÁO MỘT LẦN ==================== */
:root {
    --gold: #D4A147;
    --text-primary: #F5F5F0;
    --text-secondary: #D0D0C8;
    --text-muted: #A0A098;
    --dark-bg: #1A1A1A;
    --dark-bg-secondary: #242424;
    --dark-bg-tertiary: #2E2E2E;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-gold: 0 8px 20px rgba(212, 161, 71, 0.25);
    --shadow-lg: 0 10px 30px 0 rgba(0, 0, 0, 0.4);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.3);
    --font-main: 'Times New Roman', Times, serif;   /* 👈 ĐÃ SỬA */
}

/* ==================== RESET ==================== */
* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
    scroll-behavior: smooth;
    max-width: 100%;
    width: 100%;
    margin: 0;
    padding: 0;
    overflow-x: clip;
}

body {
    font-family: var(--font-main);
    background: linear-gradient(135deg, #1A1A1A 0%, #242424 50%, #1F1F1F 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: clip;
}

body.menu-open { overflow: hidden !important; }

/* ==================== FONT ==================== */
html, body,
body *, body *::before, body *::after,
input, textarea, button, select, label {
    font-family: var(--font-main) !important;
}

.fa, .fas, .fa-solid,
.fa::before, .fas::before, .fa-solid::before {
    font-family: "Font Awesome 6 Free" !important;
    font-weight: 900 !important;
}

.far, .fa-regular,
.far::before, .fa-regular::before {
    font-family: "Font Awesome 6 Free" !important;
    font-weight: 400 !important;
}

.fab, .fa-brands,
.fab::before, .fa-brands::before {
    font-family: "Font Awesome 6 Brands" !important;
    font-weight: 400 !important;
}

.container {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 24px;
    box-sizing: border-box;
    width: 100%;
}

main, section, .slider-container, .hero, .card, .grid-3, .grid-4 {
    overflow-x: hidden;
    max-width: 100%;
    box-sizing: border-box;
}

/* ==================== HEADER ==================== */
.main-header {
    padding: 12px 0;
    position: sticky;
    top: 0;
    z-index: 2147483000;
    backdrop-filter: blur(10px);
    background: rgba(26, 26, 26, 0.95);
    border-bottom: 2px solid var(--gold);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    width: 100%;
    box-sizing: border-box;
    isolation: isolate;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    width: 100%;
    box-sizing: border-box;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--gold);
    padding: 10px 16px;
    border-radius: 16px;
    box-shadow: var(--shadow-gold);
    transition: var(--transition);
    flex-shrink: 0;
    white-space: nowrap;
    text-decoration: none;
}

.header-brand:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(212, 161, 71, 0.35);
}

.brand-logo {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid rgba(255,255,255,0.3);
    flex-shrink: 0;
}

.brand-info { display: flex; flex-direction: column; }

.brand-title {
    color: #1a1a1a;
    font-weight: 800;
    font-size: 1.3rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    line-height: 1.2;
}

.brand-tagline {
    color: #333;
    font-size: 0.7rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-weight: 600;
    opacity: 0.8;
}

/* ==================== NAV – DESKTOP ==================== */
.header-nav {
    display: flex;
    align-items: center;
    flex: 1;
    justify-content: center;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 4px;
    margin: 0;
    padding: 0;
}

.nav-link {
    color: var(--gold);
    padding: 8px 14px;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.85rem;
    border-radius: 30px;
    transition: var(--transition);
    white-space: nowrap;
    background: rgba(212, 161, 71, 0.08);
    border: 1px solid transparent;
    display: block;
}

.nav-link:hover {
    background: rgba(212, 161, 71, 0.15);
    border-color: var(--gold);
    color: var(--gold);
    transform: translateY(-2px);
}

.nav-link.active {
    background: var(--gold) !important;
    color: #1a1a1a !important;
    box-shadow: var(--shadow-gold) !important;
    border-color: var(--gold) !important;
}

/* ==================== NAV TOGGLE & CTA ==================== */
.nav-toggle {
    display: none;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: 10px;
    color: white;
    font-size: 1.1rem;
    cursor: pointer;
    width: 44px;
    height: 44px;
    padding: 0;
    transition: var(--transition);
    flex-shrink: 0;
    align-items: center;
    justify-content: center;
}

.nav-toggle:hover {
    background: var(--gold);
    color: #1a1a1a;
    border-color: var(--gold);
}

.header-cta {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    margin-left: auto;
}

.btn-phone {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: auto;
    height: 44px;
    gap: 8px;
    padding: 0 18px;
    background: var(--gold);
    color: #1a1a1a;
    text-decoration: none;
    border-radius: 10px;
    font-weight: 700;
    font-size: 1.1rem;
    box-shadow: var(--shadow-gold);
    border: none;
    cursor: pointer;
    white-space: nowrap;
    transition: var(--transition);
}

.btn-phone .phone-text { display: inline !important; }
.btn-phone i { font-size: 1rem; line-height: 1; }

.btn-phone:hover {
    filter: brightness(1.05);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(212, 161, 71, 0.5);
}

/* Nút đóng – ẩn trên desktop */
.menu-close-btn {
    display: none;
}

/* ==================== SLIDER ==================== */
.slider-container {
    position: relative;
    width: 100%;
    overflow: hidden;
    margin-bottom: 40px;
    border-radius: 0 0 30px 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.slide {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    opacity: 0;
    z-index: 1;
    transition: opacity 0.6s ease;
}

.slide.active { opacity: 1; z-index: 2; }

.slide img {
    width: 100%; height: 100%;
    object-fit: cover;
    filter: brightness(0.75);
}

.slide-caption {
    position: absolute;
    bottom: 20%;
    left: 10%;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(10px);
    padding: 30px 40px;
    border-radius: 20px;
    max-width: 550px;
    border-left: 5px solid var(--gold);
}

.slide-caption h2 {
    margin: 0 0 15px;
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.btn-slide {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--gold);
    color: #1a1a1a;
    padding: 12px 28px;
    border-radius: 40px;
    text-decoration: none;
    font-weight: 600;
    transition: 0.3s;
}

.btn-slide:hover { filter: brightness(0.9); transform: translateY(-3px); }

.slider-prev, .slider-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(5px);
    color: white;
    border: none;
    width: 48px; height: 48px;
    border-radius: 50%;
    cursor: pointer;
    z-index: 10;
    font-size: 1.5rem;
    transition: 0.3s;
}

.slider-prev:hover, .slider-next:hover { background: var(--gold); color: #1a1a1a; }
.slider-prev { left: 20px; }
.slider-next { right: 20px; }

.slider-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
}

.dot {
    width: 12px; height: 12px;
    background: rgba(255,255,255,0.5);
    border-radius: 50%;
    cursor: pointer;
}

.dot.active { background: var(--gold); transform: scale(1.3); }

/* ==================== HERO ==================== */
.hero {
    height: 500px;
    background: linear-gradient(135deg, rgba(26,26,26,0.9), rgba(36,36,36,0.9));
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--text-primary);
    margin-bottom: 60px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 50%, rgba(212,161,71,0.15), transparent);
    pointer-events: none;
}

.hero-content { position: relative; z-index: 2; animation: fadeInUp 0.8s ease forwards; }

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 20px;
    color: var(--gold);
    text-shadow: 3px 3px 6px rgba(0,0,0,0.6);
}

.hero p {
    font-size: 1.3rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin-bottom: 30px;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==================== SECTION HEADING ==================== */
.section-heading { text-align: center; margin-bottom: 50px; }

.section-heading h2 {
    font-size: 1.6rem;
    font-weight: 800;
    position: relative;
    display: inline-block;
    padding-bottom: 20px;
    margin-bottom: 20px;
    color: var(--gold);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.section-heading p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 650px;
    margin: 15px auto 0;
}

/* ==================== LAYOUT 2 CỘT ==================== */
.two-columns { display: flex; gap: 40px; margin-bottom: 60px; }
.main-col { flex: 2; }
.side-col { flex: 1; }

/* ==================== GRID & CARDS ==================== */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 32px;
    margin-bottom: 60px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 25px;
    margin-bottom: 60px;
}

.card, .event-card {
    background: linear-gradient(135deg, var(--dark-bg-secondary), var(--dark-bg-tertiary));
    border-radius: 24px;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: 0 4px 12px 0 rgba(0,0,0,0.3);
    border: 1px solid rgba(212,161,71,0.1);
    display: flex;
    flex-direction: column;
    height: 100%;
    text-decoration: none;
    color: inherit;
}

.card:hover, .event-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(212,161,71,0.3);
}

.card-img {
    height: 220px;
    background: linear-gradient(135deg, #2a2a2a, #3a3a3a);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gold);
    font-size: 3rem;
    overflow: hidden;
}

.card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.event-card:hover .card-img img { transform: scale(1.05); }

.img-placeholder {
    width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    background: #2a2a2a;
}

.card-content { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.card-title { font-size: 1.25rem; font-weight: 700; margin-bottom: 8px; color: var(--text-primary); line-height: 1.4; }
.card-date { font-size: 0.85rem; color: var(--gold); margin-bottom: 12px; font-weight: 600; }
.card-desc { font-size: 0.95rem; color: var(--text-secondary); line-height: 1.5; flex: 1; }

.card-link, .read-more {
    color: var(--gold);
    text-decoration: none;
    font-weight: 700;
    margin-top: 12px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.card-link:hover, .read-more:hover { filter: brightness(1.1); transform: translateX(6px); }

.home-page .grid-3 {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 32px;
    margin-bottom: 40px;
}

.home-page .grid-4 {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 32px;
    margin-bottom: 40px;
}

.home-page .event-card {
    background: linear-gradient(135deg, #1A1A1A, #242424);
    border: 1px solid rgba(212, 161, 71, 0.2);
    border-radius: 24px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.home-page .card-img {
    height: 190px;
    background: #2a2a2a;
    font-size: 3rem;
}

.home-page .card-content {
    padding: 18px 20px 20px;
}

.home-page .card-title {
    font-size: 1.15rem;
    line-height: 1.32;
    margin-bottom: 8px;
    color: var(--text-primary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.home-page .card-date {
    color: var(--gold);
    font-size: 0.85rem;
    margin-bottom: 10px;
    font-weight: 600;
}

.home-page .card-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.42;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.home-page .read-more,
.home-page .btn-outline-light {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    margin-top: 12px;
    font-size: 0.82rem;
    line-height: 1;
    padding: 7px 14px;
    border-radius: 18px;
    border: 1px solid var(--gold);
    color: var(--gold);
    text-decoration: none;
}

/* ==================== SIDEBAR ==================== */
.video-box, .widget {
    background: var(--dark-bg-secondary);
    border-radius: 24px;
    padding: 20px;
    margin-bottom: 30px;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(212,161,71,0.1);
}

.video-box h3, .widget-title { font-size: 1.3rem; color: var(--gold); margin-bottom: 15px; font-weight: 700; }
.widget-title { border-left: 5px solid var(--gold); padding-left: 14px; }

.video-wrapper { position: relative; height: 1900px; overflow: hidden; border-radius: 16px; }
.video-wrapper iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }

.recent-posts { list-style: none; }
.recent-posts li { margin-bottom: 12px; padding-bottom: 12px; border-bottom: 1px solid rgba(212,161,71,0.1); }
.recent-posts a { text-decoration: none; color: var(--text-secondary); display: flex; align-items: center; gap: 8px; transition: 0.3s; font-size: 0.9rem; }
.recent-posts a:hover { color: var(--gold); }
.recent-posts a i { color: var(--gold); }

/* ==================== BUTTONS ==================== */
.btn-primary, .btn-gradient, .btn-icon, .btn-outline-icon,
.btn-back, .submit-btn, .comment-form button {
    background: var(--gold);
    color: #1a1a1a;
    font-weight: 700;
    border: none;
    border-radius: 40px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-gold);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    letter-spacing: 0.5px;
}

.btn-primary { padding: 14px 32px; font-size: 1rem; }
.btn-gradient, .btn-icon, .btn-outline-icon { padding: 12px 28px; }
.btn-back { padding: 10px 24px; margin-bottom: 20px; }

.btn-primary:hover, .btn-gradient:hover, .btn-icon:hover,
.btn-outline-icon:hover, .btn-back:hover, .submit-btn:hover,
.comment-form button:hover {
    filter: brightness(1.05);
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(212,161,71,0.4);
}

.btn-outline-light {
    display: inline-block;
    padding: 8px 20px;
    border: 1px solid var(--gold);
    border-radius: 20px;
    color: var(--gold);
    font-size: 0.85rem;
    font-weight: 600;
    margin-top: 12px;
    transition: var(--transition);
    text-decoration: none;
}

.btn-outline-light:hover { background: var(--gold); color: #1a1a1a; }

/* ==================== VISION MISSION VALUES ==================== */
.vision-mission-section { background: #1a1a1a; padding: 60px 32px; margin: 60px 0; }

.vmv-title {
    text-align: center;
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--gold);
    margin-bottom: 50px;
    text-transform: uppercase;
    position: relative;
}

.vmv-title::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 3px;
    background: var(--gold);
}

.vmv-container { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; margin: 50px 0; }

.vmv-card { background: #2a2a2a; border-left: 6px solid var(--gold); padding: 40px 30px; }
.vmv-card h3 { font-size: 1.8rem; color: var(--gold); margin-bottom: 20px; }
.vmv-card p, .vmv-card ul li { color: var(--text-muted); line-height: 1.8; }
.vmv-card ul { list-style: none; margin-top: 15px; }
.vmv-card ul li { padding-left: 25px; position: relative; margin-bottom: 12px; }
.vmv-card ul li::before { content: '●'; position: absolute; left: 0; color: var(--gold); }

.core-values-title {
    text-align: center;
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--gold);
    margin: 50px 0;
    text-transform: uppercase;
}

.core-values-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; }
.core-value-item { background: #2a2a2a; border-top: 4px solid var(--gold); padding: 32px 20px; text-align: center; }
.core-value-item h4 { font-size: 1.05rem; font-weight: 700; color: var(--text-primary); }

/* ==================== TESTIMONIALS ==================== */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

.testimonial-card {
    background: var(--dark-bg-secondary);
    border-radius: 20px;
    padding: 28px;
    text-align: center;
    border: 1px solid rgba(212,161,71,0.1);
}

.testimonial-avatar img {
    width: 80px; height: 80px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 16px;
    border: 3px solid var(--gold);
}

.testimonial-rating { color: var(--gold); margin-bottom: 16px; }
.testimonial-text { font-style: italic; color: var(--text-secondary); margin: 16px 0; }
.testimonial-author strong { display: block; color: var(--text-primary); }
.testimonial-author span { font-size: 0.85rem; color: var(--text-muted); }

/* ==================== HERO TRANG DETAIL ==================== */
.hero-event, .hero-teambuilding, .hero-contact,
.event-detail-hero, .service-detail-hero {
    background: linear-gradient(120deg, #0f0f0f 0%, #1a1a1a 100%);
    padding: 60px 0;
    text-align: center;
    margin-bottom: 48px;
    border-bottom: 2px solid var(--gold);
}

.hero-event h1, .hero-teambuilding h1, .hero-contact h1,
.event-detail-hero h1, .service-detail-hero h1 {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--gold);
    margin-bottom: 16px;
}

.hero-event p, .hero-teambuilding p, .hero-contact p {
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

.event-meta, .service-meta { display: flex; justify-content: center; gap: 24px; color: var(--text-secondary); }
.event-meta i, .service-meta i { color: var(--gold); margin-right: 6px; }

/* ==================== DETAIL CONTENT ==================== */
.event-detail-content, .service-detail-content, .post-content, .main-content {
    background: var(--dark-bg-secondary);
    border-radius: 28px;
    padding: 40px;
    margin-bottom: 60px;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(212,161,71,0.1);
}

.main-content { margin-bottom: 0; }
.entry-title { font-size: 2rem; font-weight: 800; color: var(--text-primary); margin-bottom: 16px; }

.entry-meta {
    display: flex; gap: 20px;
    color: var(--text-muted);
    border-bottom: 1px solid rgba(212,161,71,0.15);
    padding-bottom: 16px;
    margin-bottom: 24px;
}

.entry-meta i { color: var(--gold); margin-right: 6px; }

.entry-category {
    background: var(--gold);
    color: #1a1a1a;
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.single-content, .description { font-size: 1.05rem; line-height: 1.8; color: var(--text-secondary); }

.other-title, .related-title {
    font-size: 1.8rem;
    text-align: center;
    color: var(--gold);
    margin-bottom: 30px;
    position: relative;
    padding-bottom: 15px;
}

.other-title::before, .related-title::before {
    content: '';
    position: absolute;
    bottom: 0; left: 50%;
    transform: translateX(-50%);
    width: 80px; height: 3px;
    background: var(--gold);
}

.events-grid, .related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.event-item, .service-item, .related-card {
    background: linear-gradient(135deg, var(--dark-bg-secondary), var(--dark-bg-tertiary));
    border-radius: 24px;
    overflow: hidden;
    transition: 0.3s;
    text-decoration: none;
    color: inherit;
    border: 1px solid rgba(212,161,71,0.1);
}

.event-item:hover, .service-item:hover, .related-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.event-item img, .service-item img, .related-card img { width: 100%; height: 200px; object-fit: cover; }
.event-item .info, .service-item .info { padding: 20px; }
.event-item h4, .service-item h4, .related-card h4 { font-size: 1.2rem; font-weight: 600; color: var(--text-primary); margin-bottom: 10px; }
.event-item .date, .service-item .date { color: var(--gold); font-size: 0.85rem; margin-bottom: 12px; }
.event-item p, .service-item p, .related-card p { color: var(--text-secondary); font-size: 0.9rem; }

/* ==================== COMMENT FORM ==================== */
.comments-area {
    background: var(--dark-bg-secondary);
    border-radius: 28px;
    padding: 40px;
    margin-top: 40px;
    border: 1px solid rgba(212,161,71,0.1);
}

.comments-area h3 {
    font-size: 1.5rem;
    border-left: 5px solid var(--gold);
    padding-left: 16px;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.comment-form { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.comment-form textarea { grid-column: span 2; }

.comment-form input, .comment-form textarea {
    padding: 14px 18px;
    border: 1px solid rgba(212,161,71,0.2);
    border-radius: 20px;
    background: var(--dark-bg-tertiary);
    color: var(--text-primary);
    width: 100%;
}

.comment-form input:focus, .comment-form textarea:focus {
    border-color: var(--gold);
    outline: none;
    box-shadow: 0 0 0 3px rgba(212,161,71,0.15);
}

/* ==================== CONTACT FORM ==================== */
.contact-form-container, .info-card {
    background: var(--dark-bg-secondary);
    border-radius: 28px;
    padding: 32px;
    border: 1px solid rgba(212,161,71,0.1);
    margin-bottom: 30px;
}

.contact-form-container h3, .info-card h4 {
    font-size: 1.5rem;
    border-left: 5px solid var(--gold);
    padding-left: 15px;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 1px solid rgba(212,161,71,0.2);
    border-radius: 20px;
    background: var(--dark-bg-tertiary);
    color: var(--text-primary);
}

.intro-feature-list {
    margin-left: 24px;
    margin-bottom: 24px;
    color: var(--text-secondary);
}

.intro-feature-list li {
    margin-bottom: 12px;
    line-height: 1.7;
}

.intro-feature-list li::marker {
    color: var(--gold);
}

.intro-info-group {
    margin-top: 8px;
}

.info-item { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.info-item i { width: 32px; color: var(--gold); font-size: 1.2rem; }
.info-item a { color: var(--text-secondary); text-decoration: none; }
.info-item a:hover { color: var(--gold); }
.map-container { border-radius: 20px; overflow: hidden; margin-top: 20px; }

/* ==================== FOOTER ==================== */
.footer {
    background: linear-gradient(180deg, #0a0a0a 0%, #1a1a1a 50%, #0a0a0a 100%);
    color: var(--text-secondary);
    padding: 60px 0 30px;
    margin-top: 80px;
    border-top: 2px solid var(--gold);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.has-submenu {
    position: relative;
}

.nav-dropdown {
    position: relative;
}

.nav-dropdown summary {
    list-style: none;
}

.nav-dropdown summary::-webkit-details-marker {
    display: none;
}

.nav-summary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    cursor: pointer;
    user-select: none;
    min-width: auto;
}

.nav-summary i {
    font-size: 0.68rem;
    margin-left: 1px;
    position: relative;
    top: 1px;
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.nav-dropdown[open] .nav-summary i,
.has-submenu:hover .nav-summary i {
    transform: rotate(180deg);
}

.has-submenu::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    height: 18px;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 12px);
    left: 50%;
    min-width: 380px;
    max-width: 460px;
    width: max-content;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateX(-50%) translateY(16px);
    transition: opacity 0.28s ease, transform 0.28s ease, visibility 0.28s ease;
    z-index: 2147483003;
}

.dropdown-menu::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 50%;
    width: 16px;
    height: 16px;
    background: #242424;
    transform: translateX(-50%) rotate(45deg);
    border-top: 1px solid rgba(212,161,71,0.35);
    border-left: 1px solid rgba(212,161,71,0.35);
}

.dropdown-menu-inner {
    background: linear-gradient(180deg, rgba(26,26,26,0.98) 0%, rgba(36,36,36,0.98) 60%, rgba(30,30,30,0.99) 100%);
    border-radius: 22px;
    overflow: hidden;
    box-shadow: 0 24px 54px rgba(0, 0, 0, 0.48);
    border: 1px solid rgba(212,161,71,0.28);
    backdrop-filter: blur(10px);
}

.nav-dropdown[open] .dropdown-menu,
.has-submenu:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

.dropdown-item {
    display: block;
    padding: 17px 22px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 700;
    line-height: 1.45;
    letter-spacing: 0.2px;
    border-bottom: 1px solid rgba(212,161,71,0.16);
    transition: background 0.25s ease, padding-left 0.25s ease, color 0.25s ease;
}

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

.dropdown-item:hover {
    background: linear-gradient(90deg, rgba(212,161,71,0.18), rgba(212,161,71,0.08));
    padding-left: 30px;
    color: var(--gold);
}

.active-dropdown > .nav-summary {
    background: var(--gold) !important;
    color: #1a1a1a !important;
    box-shadow: var(--shadow-gold) !important;
    border-color: var(--gold) !important;
}

.has-submenu:hover > .nav-dropdown > .nav-summary {
    background: rgba(212, 161, 71, 0.16) !important;
    border-color: rgba(212, 161, 71, 0.55) !important;
    color: var(--gold) !important;
}

.has-submenu:hover > .nav-dropdown > .nav-summary.active {
    background: var(--gold) !important;
    color: #1a1a1a !important;
}

.footer-col h4 {
    color: var(--gold);
    font-size: 1.3rem;
    font-weight: 800;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 12px;
    text-transform: uppercase;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 50px; height: 3px;
    background: var(--gold);
}

.footer-col p {
    margin-bottom: 14px;
    font-size: 0.95rem;
    line-height: 1.6;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-col i { width: 28px; color: var(--gold); }
.social-icons { display: flex; gap: 14px; margin-top: 18px; }

.social-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px; height: 48px;
    background: rgba(212,161,71,0.1);
    border: 1px solid rgba(212,161,71,0.3);
    border-radius: 50%;
    color: var(--gold);
    font-size: 1.3rem;
    transition: var(--transition);
    text-decoration: none;
}

.social-icon i {
    width: auto !important;
    min-width: 0 !important;
    line-height: 1 !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
}

.social-icon:hover {
    background: var(--gold);
    color: #1a1a1a;
    border-color: var(--gold);
    transform: translateY(-5px);
    box-shadow: var(--shadow-gold);
}

.copyright {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid rgba(212,161,71,0.2);
    font-size: 0.85rem;
    color: var(--text-muted);
}


.hotline-fixed {
    position: fixed;
    bottom: 30px; right: 30px;
    background: var(--gold);
    color: #1a1a1a;
    padding: 12px 24px;
    border-radius: 60px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: bold;
    text-decoration: none;
    z-index: 100;
    box-shadow: var(--shadow-gold);
    transition: var(--transition);
}

.hotline-fixed:hover { transform: translateY(-4px); box-shadow: 0 12px 28px rgba(212,161,71,0.5); }

/* ==================== SCROLLBAR ==================== */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--dark-bg); }
::-webkit-scrollbar-thumb { background: var(--gold); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { filter: brightness(1.1); }

@media (max-width: 992px) {
    .two-columns { flex-direction: column; }
    .section-heading h2 { font-size: 1.6rem; }
    .vmv-container { grid-template-columns: 1fr; gap: 30px; }
    .core-values-grid { grid-template-columns: repeat(auto-fit, minmax(150px,1fr)); }
    .nav-link { padding: 6px 10px; font-size: 0.8rem; }
    .btn-phone { width: auto; height: 44px; padding: 0 14px; font-size: 1rem; }
}
@media (max-width: 768px) {
    .main-header {
        position: sticky !important;
        top: 0 !important;
        z-index: 2147483000 !important;
        transform: none !important;
        overflow: visible !important;
    }

.grid-3.news-grid {
    grid-template-columns: 1fr;
}
    .header-content {
        justify-content: space-between;
        position: relative;
        overflow: visible !important;
        gap: 10px;
        padding-right: 0 !important;
    }

    .header-cta {
        margin-left: auto !important;
        padding-right: 0 !important;
        gap: 8px !important;
    }

    .nav-toggle {
        display: inline-flex !important;
        align-items: center;
        justify-content: center;
        margin-right: 0 !important;
        position: relative;
        right: 0;
    }

    .btn-phone { width: 44px; height: 44px; padding: 0; gap: 0; }
    .btn-phone .phone-text { display: none !important; }

    /* ===== PANEL MENU ===== */
    .header-nav {
        position: fixed !important;
        top: 0 !important;
        right: 0 !important;
        bottom: 0 !important;
        left: auto !important;
        width: 320px !important;
        max-width: 86vw !important;
        height: 100dvh !important;
        min-height: 100vh !important;
        background: #1a1a1a !important;
        flex-direction: column !important;
        justify-content: flex-start !important;
        align-items: stretch !important;
        padding: 70px 16px 30px !important;
        z-index: 2147483001 !important;
        transform: translateX(100%) !important;
        transition: transform 0.3s ease !important;
        box-shadow: -5px 0 25px rgba(0,0,0,0.8) !important;
        overflow-y: auto !important;
        overflow-x: hidden !important;
        display: flex !important;
        visibility: hidden !important;
        pointer-events: none !important;
    }

    body.menu-open .main-header,
    body.menu-open .header-nav {
        z-index: 2147483001 !important;
    }

    .header-nav.show {
        transform: translateX(0) !important;
        visibility: visible !important;
        pointer-events: auto !important;
    }

    /* ===== DANH SÁCH ===== */
    .nav-list {
        display: flex !important;
        position: static !important;
        inset: auto !important;
        transform: none !important;
        flex-direction: column !important;
        gap: 10px !important;
        width: 100% !important;
        height: auto !important;
        max-width: none !important;
        padding: 0 !important;
        margin: 0 !important;
        background: transparent !important;
        box-shadow: none !important;
        list-style: none !important;
        z-index: auto !important;
        transition: none !important;
    }

    .nav-list.show { right: auto !important; }

    .nav-list li {
        width: 100% !important;
        display: block !important;
    }

    .has-submenu {
        width: 100% !important;
    }

    .has-submenu::after {
        display: none !important;
    }

    .nav-dropdown {
        width: 100% !important;
        display: block !important;
    }

    /* ===== TỪNG LINK ===== */
    .nav-link {
        display: block !important;
        width: 100% !important;
        padding: 15px 18px !important;
        font-size: 1rem !important;
        font-weight: 700 !important;
        text-align: left !important;
        color: #ffffff !important;
        background: rgba(255,255,255,0.07) !important;
        border: 1px solid rgba(212,161,71,0.2) !important;
        border-radius: 12px !important;
        text-decoration: none !important;
        transition: background 0.2s, color 0.2s !important;
        box-sizing: border-box !important;
        white-space: normal !important;
    }

    .nav-link:hover {
        background: rgba(212,161,71,0.18) !important;
        color: #D4A147 !important;
        border-color: #D4A147 !important;
        transform: none !important;
    }

    .nav-link.active {
        background: #D4A147 !important;
        color: #1a1a1a !important;
        border-color: #D4A147 !important;
    }

    .nav-summary {
        display: flex !important;
        align-items: center !important;
        justify-content: space-between !important;
        gap: 10px !important;
    }

    .dropdown-menu {
        position: static !important;
        top: auto !important;
        left: auto !important;
        min-width: 100% !important;
        max-width: 100% !important;
        width: 100% !important;
        margin-top: 10px !important;
        opacity: 1 !important;
        visibility: visible !important;
        transform: none !important;
        display: none !important;
        pointer-events: auto !important;
    }

    .dropdown-menu::before {
        display: none !important;
    }

    .dropdown-menu-inner {
        border-radius: 14px !important;
        box-shadow: none !important;
    }

    .nav-dropdown[open] .dropdown-menu {
        display: block !important;
    }

    .dropdown-item {
        padding: 14px 16px !important;
        font-size: 0.92rem !important;
    }

    .dropdown-item:hover {
        padding-left: 20px !important;
    }

    /* ===== NÚT X ===== */
    .menu-close-btn {
        display: flex !important;
        position: absolute !important;
        top: 14px !important;
        right: 14px !important;
        width: 38px !important;
        height: 38px !important;
        border-radius: 50% !important;
        background: rgba(255,255,255,0.08) !important;
        border: 1.5px solid #D4A147 !important;
        color: #D4A147 !important;
        font-size: 18px !important;
        align-items: center !important;
        justify-content: center !important;
        cursor: pointer !important;
        z-index: 2147483002 !important;
        line-height: 1 !important;
        flex-shrink: 0 !important;
        pointer-events: auto !important;
        touch-action: manipulation !important;
    }

    .menu-close-btn i {
        pointer-events: none !important;
    }

    .menu-close-btn:hover {
        background: #D4A147 !important;
        color: #1a1a1a !important;
    }

    body.menu-open::before {
        content: '' !important;
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        bottom: 0 !important;
        background: rgba(0,0,0,0.6) !important;
        z-index: 2147482999 !important;
        pointer-events: auto !important;
    }

    .hero h1 { font-size: 2rem; }
    .section-heading h2 { font-size: 1.6rem; }
    .grid-3, .grid-4, .testimonials-grid,
    .events-grid, .services-grid, .related-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .intro-feature-list {
        margin-left: 18px;
    }
    .home-page .grid-3,
    .home-page .grid-4 {
        grid-template-columns: 1fr;
        gap: 28px;
    }
    .home-page .event-card { border-radius: 24px; }
    .home-page .card-img { height: 190px; }
    .home-page .card-content { padding: 18px 20px 20px; }
    .home-page .card-title { font-size: 1.1rem; }
    .home-page .card-date { font-size: 0.82rem; margin-bottom: 10px; }
    .home-page .card-desc { font-size: 0.88rem; }
    .hero { height: 300px; }
    .event-detail-content, .comments-area,
    .contact-form-container { padding: 20px; }
    .comment-form { grid-template-columns: 1fr; }
    .comment-form textarea { grid-column: span 1; }
    .slide-caption { left: 5%; right: 5%; padding: 16px; }
    .slide-caption h2 { font-size: 1.3rem; }
}

/* ==================== RESPONSIVE 576px ==================== */
@media (max-width: 576px) {
    .hero-event h1, .event-detail-hero h1 { font-size: 1.6rem; }
    .entry-title { font-size: 1.5rem; }
    .vmv-title { font-size: 2rem; }
    .core-values-grid { grid-template-columns: 1fr; }
    .container {
        padding-left: 15px !important;
        padding-right: 15px !important;
    }
    .header-brand { gap: 8px; padding: 8px 12px; }
    .brand-logo { width: 40px; height: 40px; }
    .brand-title { font-size: 1.05rem; }
    .brand-tagline { font-size: 0.6rem; }
    .grid-3.news-grid {
    grid-template-columns: 1fr;
}
    .header-nav { width: 300px !important; max-width: 90vw !important; }
}