:root {
            --primary-gold: #c5a059;
            --primary-gold-hover: #e0bc75;
            --bg-dark: #0a0a0c;
            --bg-darker: #050506;
            --text-light: #f4f4f4;
            --text-muted: #a0a0a0;
            --font-heading: 'Playfair Display', serif;
            --font-body: 'Inter', sans-serif;
            --header-height: 72px;
            --header-height-scrolled: 60px;
        }

        /* Reset & Base */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-dark);
            color: var(--text-light);
            line-height: 1.6;
            overflow-x: hidden;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Typography */
        h1, h2, h3, h4, .section-title {
            font-family: var(--font-heading);
            font-weight: 400;
        }

        .section-title {
            font-size: 3rem;
            color: var(--primary-gold);
            text-align: center;
            margin-bottom: 3rem;
            letter-spacing: 2px;
        }

        /* Navbar */
        nav {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            min-height: var(--header-height);
            padding: 0;
            display: flex;
            align-items: center;
            z-index: 1000;
            transition: background 0.4s ease, min-height 0.4s ease, box-shadow 0.4s ease;
            background: transparent;
            box-sizing: border-box;
        }

        nav.scrolled {
            background: rgba(10, 10, 12, 0.98);
            box-shadow: 0 1px 0 rgba(197, 160, 89, 0.2);
            min-height: var(--header-height-scrolled);
        }

        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }

        .logo {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            color: var(--primary-gold);
            text-decoration: none;
            letter-spacing: 2px;
            text-transform: uppercase;
            line-height: 1;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 30px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            color: var(--text-light);
            text-decoration: none;
            font-size: 0.9rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            line-height: 1;
            transition: color 0.3s;
        }

        .nav-links a:hover { color: var(--primary-gold); }

        .menu-toggle {
            display: none;
            flex-direction: column;
            cursor: pointer;
            z-index: 1001;
        }
        .menu-toggle span {
            width: 25px;
            height: 2px;
            background-color: var(--primary-gold);
            margin-bottom: 5px;
            transition: 0.3s;
        }

        /* Buttons */
        .btn {
            display: inline-block;
            padding: 14px 32px;
            border: 1px solid var(--primary-gold);
            color: var(--primary-gold);
            text-decoration: none;
            text-transform: uppercase;
            letter-spacing: 2px;
            font-size: 0.85rem;
            transition: all 0.3s ease;
            cursor: pointer;
            background: transparent;
        }
        .btn:hover, .btn.solid {
            background: var(--primary-gold);
            color: var(--bg-dark);
        }

        #gioi-thieu {
            position: relative;
        }

        .video-hero {
            position: relative;
            width: 100%;
            height: 100vh;
            overflow: hidden;
            background: var(--bg-darker);
        }

        .video-hero video {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0;
            transition: opacity 0.8s ease;
        }

        .video-hero video.is-ready {
            opacity: 1;
        }

        .video-overlay {
            position: absolute;
            top: 0; left: 0; width: 100%; height: 100%;
            background: rgba(0, 0, 0, 0.4);
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
        }

        .video-overlay h1 {
            font-size: 4.5rem;
            color: #fff;
            text-shadow: 0 4px 20px rgba(0,0,0,0.8);
            letter-spacing: 4px;
        }

        .overview-section {
            padding: 100px 0;
            background: var(--bg-darker);
            text-align: center;
        }

        .overview-section img {
            width: 100%;
            height: auto;
            display: block;
            border-radius: 4px;
            transition: transform 0.4s ease;
        }

        .overview-image-wrap {
            display: block;
            width: min(1200px, 94vw);
            margin: 40px auto 0;
            padding: 0;
            border: 1px solid rgba(197, 160, 89, 0.2);
            border-radius: 4px;
            background: none;
            cursor: zoom-in;
            position: relative;
            overflow: hidden;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .overview-image-wrap:hover {
            border-color: rgba(197, 160, 89, 0.45);
            box-shadow: 0 24px 60px rgba(0, 0, 0, 0.6);
        }

        .overview-image-wrap:hover img {
            transform: scale(1.02);
        }

        .overview-zoom-hint {
            position: absolute;
            bottom: 16px;
            right: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 14px;
            background: rgba(6, 6, 8, 0.85);
            border: 1px solid rgba(197, 160, 89, 0.3);
            border-radius: 2px;
            font-size: 0.7rem;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            color: var(--primary-gold);
            pointer-events: none;
            opacity: 0;
            transform: translateY(6px);
            transition: opacity 0.3s ease, transform 0.3s ease;
        }

        .overview-image-wrap:hover .overview-zoom-hint {
            opacity: 1;
            transform: translateY(0);
        }

        .overview-zoom-hint svg {
            width: 14px;
            height: 14px;
            stroke: currentColor;
            fill: none;
            stroke-width: 1.5;
        }

        /* Lightbox */
        .lightbox {
            position: fixed;
            inset: 0;
            z-index: 2000;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0;
            background: rgba(0, 0, 0, 0.94);
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: opacity 0.35s ease, visibility 0.35s ease;
            overflow: hidden;
        }

        .lightbox.active {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
        }

        .lightbox__stage {
            width: 100%;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            touch-action: none;
        }

        .lightbox:not(.lightbox--zoomable) .lightbox__stage {
            touch-action: auto;
            padding: 24px;
        }

        .lightbox__stage.is-dragging {
            cursor: grabbing;
        }

        .lightbox--zoomable .lightbox__stage {
            cursor: grab;
        }

        .lightbox__img {
            max-width: 100%;
            max-height: 92vh;
            width: auto;
            height: auto;
            object-fit: contain;
            border-radius: 2px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8);
            transform: scale(0.95);
            transition: transform 0.35s ease;
            user-select: none;
            -webkit-user-drag: none;
            will-change: transform;
        }

        .lightbox.active .lightbox__img {
            transform: scale(1);
        }

        .lightbox--zoomable.active .lightbox__img {
            transition: none;
        }

        .lightbox__close {
            position: absolute;
            top: 20px;
            right: 20px;
            width: 44px;
            height: 44px;
            border: 1px solid rgba(197, 160, 89, 0.4);
            background: rgba(6, 6, 8, 0.8);
            color: var(--primary-gold);
            font-size: 1.5rem;
            line-height: 1;
            cursor: pointer;
            border-radius: 50%;
            transition: all 0.3s ease;
        }

        .lightbox__close:hover {
            background: var(--primary-gold);
            color: var(--bg-dark);
        }

        .overview-section p {
            max-width: 800px;
            margin: 0 auto;
            font-size: 1.2rem;
            color: var(--text-muted);
        }

        #collection {
            position: relative;
            background: var(--bg-dark);
        }

        @media (min-width: 769px) {
            #collection {
                height: auto;
                overflow: visible;
            }

            .collection-item {
                position: sticky;
                top: 0;
                height: 100vh;
                height: 100dvh;
            }

            .collection-dots {
                position: fixed;
                left: 24px;
                top: 50%;
                transform: translateY(-50%);
                z-index: 1001;
                display: flex;
                flex-direction: column;
                align-items: center;
                gap: 6px;
                max-height: 72vh;
                overflow-y: auto;
                overflow-x: visible;
                /* padding: 14px 10px;
                background: rgba(6, 6, 8, 0.55);
                backdrop-filter: blur(8px);
                border: 1px solid rgba(197, 160, 89, 0.2);
                border-radius: 24px; */
                scrollbar-width: none;
                opacity: 0;
                pointer-events: none;
                transition: opacity 0.4s ease;
            }

            .collection-dots::-webkit-scrollbar {
                display: none;
            }

            .collection-dots.is-visible {
                opacity: 1;
                pointer-events: auto;
            }

            .collection-dots::before {
                content: '';
                position: absolute;
                top: 14px;
                bottom: 14px;
                left: 50%;
                width: 1px;
                background: linear-gradient(
                    to bottom,
                    transparent,
                    rgba(197, 160, 89, 0.3) 8%,
                    rgba(197, 160, 89, 0.3) 92%,
                    transparent
                );
                transform: translateX(-50%);
                z-index: 0;
            }

            .collection-dots__item {
                position: relative;
                z-index: 1;
                flex-shrink: 0;
                width: 6px;
                height: 6px;
                padding: 0;
                border: 1px solid rgba(197, 160, 89, 0.5);
                border-radius: 50%;
                background: rgba(197, 160, 89, 0.15);
                cursor: pointer;
                transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            }

            .collection-dots__item:hover {
                border-color: var(--primary-gold);
                background: rgba(197, 160, 89, 0.35);
                transform: scale(1.2);
            }

            .collection-dots__item.active {
                width: 9px;
                height: 9px;
                background: var(--primary-gold);
                border-color: var(--primary-gold);
                box-shadow: 0 0 10px rgba(197, 160, 89, 0.6);
            }

            .collection-dots__counter {
                position: fixed;
                left: 72px;
                top: 50%;
                transform: translateY(-50%);
                font-family: var(--font-heading);
                font-size: 0.7rem;
                letter-spacing: 2px;
                color: var(--primary-gold);
                white-space: nowrap;
                opacity: 0;
                transition: opacity 0.4s ease;
                pointer-events: none;
                z-index: 1001;
            }

            .collection-dots.is-visible + .collection-dots__counter,
            .collection-dots__counter.is-visible {
                opacity: 1;
            }
        }

        .collection-item {
            position: sticky;
            top: 0;
            height: 100vh;
            height: 100dvh;
            width: 100%;
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: flex-end;
            padding: 80px 50px;
            box-shadow: inset 0 -250px 200px -50px rgba(0,0,0,0.9);
        }

        .collection-content {
            max-width: 800px;
        }

        .collection-content h3 {
            font-size: 3.5rem;
            color: var(--primary-gold);
            margin-bottom: 15px;
        }

        .collection-content p {
            font-size: 1.2rem;
        }

        #toa-do {
            padding: 100px 0;
            background: #f5f3ef;
            color: #2c2c2c;
        }

        #toa-do .section-title {
            color: var(--primary-gold);
        }

        .map-stack {
            display: flex;
            flex-direction: column;
            gap: 60px;
            margin-bottom: 60px;
        }

        .map-fullwidth-block {
            margin-bottom: 60px;
        }

        .map-fullwidth-block:last-of-type {
            margin-bottom: 0;
        }

        .map-fullwidth-block .map-label {
            margin-bottom: 24px;
        }

        .map-label {
            font-family: var(--font-heading);
            font-size: 1.4rem;
            color: #3d3d3d;
            text-align: center;
            letter-spacing: 2px;
        }

        .map-img-fullwidth {
            display: block;
            width: 100%;
            height: auto;
            transition: transform 0.4s ease;
        }

        .map-lightbox-trigger {
            display: block;
            width: 100%;
            padding: 0;
            border: none;
            background: none;
            cursor: zoom-in;
            position: relative;
        }

        .map-lightbox-trigger:hover .map-img-fullwidth {
            transform: scale(1.01);
        }

        #toa-do .overview-zoom-hint {
            color: #3d3d3d;
            background: rgba(255, 255, 255, 0.92);
            border-color: rgba(197, 160, 89, 0.35);
        }

        #toa-do .map-lightbox-trigger:hover .overview-zoom-hint {
            opacity: 1;
            transform: translateY(0);
        }

        .amenities-visual {
            margin-bottom: 60px;
        }

        .amenities-container {
            
        }

        #toa-do .amenities-grid li {
            color: #2c2c2c;
            background: rgba(255, 255, 255, 0.8);
            border: 1px solid rgba(197, 160, 89, 0.15);
        }

        #toa-do .amenities-grid li:hover {
            background: rgba(197, 160, 89, 0.12);
        }

        .amenities-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
            list-style: none;
        }

        .amenities-grid li {
            display: flex;
            align-items: center;
            font-size: 1.1rem;
            color: var(--text-light);
            padding: 15px;
            background: rgba(255,255,255,0.02);
            border-radius: 4px;
            transition: all 0.3s;
        }

        .amenities-grid li:hover {
            background: rgba(197, 160, 89, 0.1);
            transform: translateX(10px);
        }

        .amenities-grid li span {
            font-family: var(--font-heading);
            font-size: 1.8rem;
            color: var(--primary-gold);
            margin-right: 20px;
            min-width: 40px;
        }

        #lien-he {
            padding: 100px 0;
            background: var(--bg-darker);
            position: relative;
            overflow: hidden;
        }

        #lien-he::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 120px;
            height: 1px;
            background: linear-gradient(to right, transparent, var(--primary-gold), transparent);
        }

        .connect-intro {
            text-align: center;
            max-width: 640px;
            margin: -1.5rem auto 3.5rem;
            font-size: 1.05rem;
            color: var(--text-muted);
            line-height: 1.8;
            font-weight: 300;
        }

        .connect-panel {
            display: grid;
            grid-template-columns: 1fr 1.15fr;
            max-width: 1100px;
            margin: 0 auto;
            border: 1px solid rgba(197, 160, 89, 0.25);
            background: linear-gradient(145deg, rgba(12, 12, 14, 0.95) 0%, rgba(5, 5, 6, 0.98) 100%);
            box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
            position: relative;
        }

        .connect-panel::before,
        .connect-panel::after {
            content: '';
            position: absolute;
            width: 32px;
            height: 32px;
            border: 1px solid rgba(197, 160, 89, 0.35);
            pointer-events: none;
        }

        .connect-panel::before {
            top: 12px;
            left: 12px;
            border-right: none;
            border-bottom: none;
        }

        .connect-panel::after {
            bottom: 12px;
            right: 12px;
            border-left: none;
            border-top: none;
        }

        .connect-partner {
            padding: 50px 44px;
            border-right: 1px solid rgba(197, 160, 89, 0.12);
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .connect-partner__label {
            display: inline-block;
            font-size: 0.65rem;
            letter-spacing: 3px;
            text-transform: uppercase;
            color: var(--primary-gold);
            margin-bottom: 24px;
            padding-bottom: 12px;
            border-bottom: 1px solid rgba(197, 160, 89, 0.2);
        }

        .connect-partner__icon {
            margin-bottom: 20px;
            opacity: 0.75;
        }

        .connect-partner__name {
            font-family: var(--font-heading);
            font-size: 2rem;
            color: var(--primary-gold);
            letter-spacing: 4px;
            text-transform: uppercase;
            margin-bottom: 20px;
        }

        .connect-partner__desc {
            color: var(--text-muted);
            font-size: 0.98rem;
            line-height: 1.85;
            font-weight: 300;
            margin-bottom: 36px;
        }

        .connect-partner__desc strong {
            color: var(--text-light);
            font-weight: 400;
        }

        .connect-details {
            padding-top: 28px;
            border-top: 1px solid rgba(197, 160, 89, 0.12);
        }

        .connect-details p {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin-bottom: 12px;
            line-height: 1.6;
        }

        .connect-details strong {
            color: var(--text-light);
            font-weight: 500;
        }

        .connect-details .connect-highlight {
            color: var(--primary-gold);
        }

        .connect-form-area {
            padding: 50px 44px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .connect-form__title {
            font-family: var(--font-heading);
            font-size: 2rem;
            color: var(--primary-gold);
            margin-bottom: 12px;
        }

        .connect-form__subtitle {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 32px;
            font-weight: 300;
        }

        .connect-form__note {
            font-size: 0.8rem;
            color: var(--text-muted);
            text-align: center;
            margin-top: 15px;
            font-style: italic;
        }

        .form-group {
            margin-bottom: 25px;
        }

        .form-control {
            width: 100%;
            background: transparent;
            border: none;
            border-bottom: 1px solid rgba(255,255,255,0.2);
            padding: 15px 0;
            color: var(--text-light);
            font-size: 1rem;
            font-family: var(--font-body);
            transition: all 0.3s;
        }

        .form-control:focus {
            outline: none;
            border-bottom-color: var(--primary-gold);
        }

        /* Animations & Responsive */
        .reveal {
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.8s ease-out;
        }
        .reveal.active {
            opacity: 1;
            transform: translateY(0);
        }

        /* Section Rail — góc phải trên (không dùng thẻ nav để tránh conflict) */
        .section-rail {
            position: fixed;
            top: 50%;
            right: 20px;
            left: auto;
            width: auto;
            padding: 0;
            margin: 0;
            transform: translateY(-50%);
            background: none;
            border: none;
            backdrop-filter: none;
            z-index: 999;
            pointer-events: none;
        }

        .section-rail__items {
            pointer-events: auto;
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            padding: 10px 8px;
            /* background: rgba(6, 6, 8, 0.92); */
            backdrop-filter: blur(5px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(197, 160, 89, 0.25);
            border-radius: 24px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .section-rail__item {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            color: rgba(197, 160, 89, 0.45);
            transition: color 0.3s ease;
        }

        .section-rail__item:hover {
            color: rgba(197, 160, 89, 0.85);
        }

        .section-rail__item.active {
            color: var(--primary-gold);
        }

        .section-rail__icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid rgba(197, 160, 89, 0.2);
            background: rgba(255, 255, 255, 0.04);
            transition: all 0.3s ease;
        }

        .section-rail__icon svg {
            width: 13px;
            height: 13px;
            stroke: currentColor;
            fill: none;
            stroke-width: 1.5;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .section-rail__item:hover .section-rail__icon {
            border-color: rgba(197, 160, 89, 0.5);
            background: rgba(197, 160, 89, 0.08);
        }

        .section-rail__item.active .section-rail__icon {
            border-color: var(--primary-gold);
            background: rgba(197, 160, 89, 0.15);
            box-shadow: 0 0 10px rgba(197, 160, 89, 0.25);
        }

        .section-rail__label {
            position: absolute;
            right: calc(100% + 12px);
            top: 50%;
            transform: translateY(-50%) translateX(8px);
            white-space: nowrap;
            font-family: var(--font-heading);
            font-size: 0.62rem;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            color: var(--text-light);
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
            pointer-events: none;
            padding: 5px 10px;
            background: rgba(6, 6, 8, 0.95);
            border: 1px solid rgba(197, 160, 89, 0.2);
            border-radius: 2px;
        }

        .section-rail__item:hover .section-rail__label {
            opacity: 1;
            visibility: visible;
            transform: translateY(-50%) translateX(0);
        }

        .section-rail__item.active .section-rail__label {
            color: var(--primary-gold);
        }

        /* Mobile-only elements */
        .menu-overlay,
        .collection-mobile-header {
            display: none;
        }
        .mobile-bottom-nav {
            display: none;
        }

        @media (max-width: 992px) {
            .connect-panel { grid-template-columns: 1fr; }
            .connect-partner { border-right: none; border-bottom: 1px solid rgba(197, 160, 89, 0.12); }
            .collection-item { padding: 40px 20px; }
            .collection-content h3 { font-size: 2.5rem; }
            .map-stack { gap: 40px; }
        }

        @media (min-width: 769px) {
            .nav-links {
                position: fixed;
                top: 0;
                left: 50%;
                transform: translateX(-50%);
                width: 100%;
                max-width: 1200px;
                height: var(--header-height);
                padding: 0 24px;
                display: flex;
                flex-direction: row;
                justify-content: flex-end;
                align-items: center;
                gap: 30px;
                background: transparent;
                z-index: 1001;
                pointer-events: none;
                transition: height 0.4s ease;
            }

            .nav-links li,
            .nav-links a {
                pointer-events: auto;
            }

            nav.scrolled ~ .nav-links {
                height: var(--header-height-scrolled);
            }
        }

        @media (max-width: 768px) {
            .collection-dots,
            .collection-dots__counter {
                display: none !important;
            }

            .container { padding: 0 16px; }

            /* Navbar mobile */
            :root {
                --header-height: 56px;
                --header-height-scrolled: 52px;
            }

            nav { min-height: var(--header-height); }
            nav.scrolled { min-height: var(--header-height-scrolled); }
            .logo { font-size: 1.15rem; letter-spacing: 1.5px; }

            .menu-toggle { display: flex; z-index: 1102; }
            .menu-toggle span { transition: transform 0.3s ease, opacity 0.3s ease; }
            .menu-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
            .menu-toggle.open span:nth-child(2) { opacity: 0; }
            .menu-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); margin-bottom: 0; }

            .menu-overlay {
                display: block;
                position: fixed;
                inset: 0;
                background: rgba(0, 0, 0, 0.75);
                z-index: 1100;
                opacity: 0;
                pointer-events: none;
                transition: opacity 0.4s ease;
            }
            .menu-overlay.active {
                opacity: 1;
                pointer-events: auto;
            }

            .nav-links {
                display: flex;
                position: fixed;
                top: 0;
                left: 0;
                right: 0;
                bottom: 0;
                width: 100%;
                height: 100%;
                max-height: 100dvh;
                background: rgba(5, 5, 6, 0.98);
                flex-direction: column;
                justify-content: center;
                align-items: center;
                gap: 25px;
                transform: translateX(100%);
                transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
                z-index: 1101;
                border: none;
                margin: 0;
                padding: 0;
                list-style: none;
            }
            .nav-links.active { transform: translateX(0); }
            .nav-links a {
                font-family: var(--font-heading);
                font-size: 1.3rem;
                letter-spacing: 3px;
                padding: 14px 0;
            }
            .nav-links .btn {
                margin-top: 20px;
                padding: 14px 36px !important;
                font-size: 0.8rem;
            }

            /* Section rail → bottom nav */
            .section-rail { display: none; }

            .mobile-bottom-nav {
                display: flex;
                position: fixed;
                top: auto;
                bottom: 0;
                left: 0;
                right: 0;
                width: 100%;
                height: auto;
                margin: 0;
                z-index: 998;
                flex-direction: row;
                justify-content: space-around;
                align-items: center;
                padding: 6px 8px calc(6px + env(safe-area-inset-bottom, 0px));
                background: rgba(6, 6, 8, 0.96);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                border: none;
                border-top: 1px solid rgba(197, 160, 89, 0.2);
                transition: none;
            }

            .mobile-bottom-nav__item {
                display: flex;
                flex-direction: column;
                align-items: center;
                gap: 3px;
                text-decoration: none;
                color: rgba(197, 160, 89, 0.4);
                padding: 4px 6px;
                transition: color 0.3s ease;
                flex: 1;
                max-width: 72px;
            }

            .mobile-bottom-nav__item svg {
                width: 18px;
                height: 18px;
                stroke: currentColor;
                fill: none;
                stroke-width: 1.5;
                stroke-linecap: round;
                stroke-linejoin: round;
            }

            .mobile-bottom-nav__item span {
                font-size: 0.5rem;
                letter-spacing: 0.5px;
                text-transform: uppercase;
                text-align: center;
                line-height: 1.2;
            }

            .mobile-bottom-nav__item.active {
                color: var(--primary-gold);
            }

            .mobile-bottom-nav__item.active svg {
                filter: drop-shadow(0 0 6px rgba(197, 160, 89, 0.4));
            }

            body.menu-open .mobile-bottom-nav {
                display: none;
            }

            body.menu-open .mobile-bottom-nav {
                display: none;
            }

            body { padding-bottom: 64px; }

            footer {
                padding: 28px 0 calc(80px + env(safe-area-inset-bottom, 0px)) !important;
            }

            /* Hero */
            .video-hero {
                height: 100dvh;
                height: 100svh;
            }

            /* Overview */
            .overview-section { padding: 60px 0; }
            .overview-section p { font-size: 1rem; line-height: 1.7; }
            .overview-image-wrap {
                width: calc(100vw - 32px);
                margin-top: 28px;
            }
            .overview-zoom-hint {
                opacity: 1;
                transform: none;
                bottom: 12px;
                right: 12px;
                font-size: 0.6rem;
                padding: 6px 10px;
            }

            /* Collection — swipe gallery */
            .collection-mobile-header {
                display: block;
                padding: 48px 16px 20px;
                background: var(--bg-dark);
                text-align: center;
            }

            .collection-mobile-header .section-title {
                font-size: 1.8rem;
                margin-bottom: 8px;
            }

            .collection-swipe-hint {
                font-size: 0.75rem;
                color: var(--text-muted);
                letter-spacing: 1px;
            }

            #collection {
                display: flex;
                flex-direction: row;
                overflow-x: auto;
                scroll-snap-type: x mandatory;
                -webkit-overflow-scrolling: touch;
                scrollbar-width: none;
                height: auto;
                align-items: center;
                padding: 12px 0 20px;
            }

            #collection.is-autoplay {
                scroll-snap-type: none;
            }

            #collection::-webkit-scrollbar { display: none; }

            .collection-item {
                position: relative;
                top: auto;
                flex: 0 0 auto;
                width: 90vw;
                aspect-ratio: 16 / 9;
                height: auto;
                scroll-snap-align: center;
                margin-right: 12px;
                border-radius: 3px;
                background-size: cover;
                background-position: center;
                box-shadow: none;
                cursor: pointer;
                -webkit-tap-highlight-color: transparent;
            }

            .collection-item:first-child { margin-left: 16px; }
            .collection-item:last-child { margin-right: 16px; }

            /* Tọa độ */
            #toa-do { padding: 60px 0; }
            .section-title { font-size: 1.8rem; margin-bottom: 2rem; letter-spacing: 1.5px; }
            .map-fullwidth-block { margin-bottom: 32px; }
            #toa-do .overview-zoom-hint {
                opacity: 1;
                transform: none;
                bottom: 12px;
                right: 12px;
            }
            .map-label { font-size: 1.1rem; }
            .amenities-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .amenities-grid li {
                font-size: 12px;
                padding: 12px;
            }
            .amenities-grid li span { font-size: 1.4rem; min-width: 25px; }
            .amenities-grid li:hover { transform: none; }

            /* Kết nối & Đăng ký */
            #lien-he { padding: 60px 0; }
            .connect-intro { font-size: 0.95rem; margin-bottom: 2.5rem; }
            .connect-partner,
            .connect-form-area { padding: 32px 24px; }
            .connect-partner__name { font-size: 1.5rem; letter-spacing: 3px; }
            .connect-form__title { font-size: 1.5rem; }

            /* Footer */
            footer { padding: 28px 0 20px; }
        }

        /* Form success state */
        .tc-form-state {
            display: none;
        }
        .tc-form-state.is-active {
            display: block;
        }
        .tc-success-panel {
            text-align: center;
            padding: 40px 0;
            min-height: 280px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .tc-success-panel h3 {
            color: var(--primary-gold);
            font-family: var(--font-heading);
            font-size: 1.8rem;
            margin-bottom: 15px;
        }
        .tc-success-panel p {
            color: var(--text-light);
            margin-bottom: 0;
        }
        #bottom-phone-error.hidden {
            display: none;
        }