:root {
            --primary-blue: #0284c7;
            --primary-blue-hover: #0369a1;
            --light-blue: #e0f2fe;
            --light-blue-bg: #f0f9ff;
            --light-yellow: #fef08a;
            --light-yellow-hover: #fde047;
            --light-yellow-bg: #fffbeb;
            --white: #ffffff;
            --dark-text: #1e293b;
            --muted-text: #475569;
            --border-color: rgba(2, 132, 199, 0.1);
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 80px;
        }

        body {
            font-family: 'Be Vietnam Pro', sans-serif;
            background: var(--light-blue-bg);
            color: var(--dark-text);
            line-height: 1.6;
        }

        .container {
            width: min(1120px, 92%);
            margin: auto;
        }

        /* Sticky Navigation Bar - Premium Redesign */
        /* Fixed Navigation Bar - Transparent by default, Frosted on Scroll */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: transparent;
            z-index: 1000;
            padding: 18px 0;
            transition: all 0.3s ease;
        }

        .navbar.scrolled {
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.03);
            padding: 10px 0;
        }

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

        .nav-left {
            display: flex;
            align-items: center;
            gap: 24px;
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            transition: transform 0.2s ease;
        }

        .nav-brand:hover {
            transform: scale(1.02);
        }

        .nav-logo {
            height: 64px;
            border-radius: 10px;
            object-fit: contain;
        }

        .nav-brand-text {
            display: flex;
            flex-direction: column;
            text-align: left;
            line-height: 1.1;
        }

        .nav-title {
            font-size: 32px;
            font-weight: 850;
            letter-spacing: 0.5px;
        }

        .brand-spix {
            color: #0b4aa2;
        }

        .brand-edu {
            color: #43a12d;
        }

        .nav-subtitle {
            font-family: 'Be Vietnam Pro', sans-serif;
            font-size: 12px;
            font-weight: 600;
            color: #64748b;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            margin-top: 6px;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .nav-link {
            text-decoration: none;
            color: var(--dark-text);
            font-weight: 700;
            font-size: 16px;
            transition: all 0.2s ease;
            position: relative;
            padding: 8px 12px;
            border-radius: 8px;
        }

        .nav-link:hover {
            color: var(--primary-blue);
            background: rgba(2, 132, 199, 0.04);
        }

        /* Hover underline effect */
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 12px;
            right: 12px;
            height: 2px;
            background-color: var(--primary-blue);
            transform: scaleX(0);
            transition: transform 0.2s ease;
        }

        .nav-link:hover::after {
            transform: scaleX(1);
        }

        /* CTA Button - Pill Shape & Subtle Depth Shadow */
        .nav-cta {
            display: inline-block;
            padding: 12px 24px;
            background: var(--primary-blue);
            color: var(--white);
            border-radius: 999px;
            text-decoration: none;
            font-weight: 800;
            font-size: 16px;
            transition: all 0.2s ease;
            box-shadow: 0 4px 14px rgba(2, 132, 199, 0.18);
            border: none;
        }

        .nav-cta:hover {
            background: var(--primary-blue-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(2, 132, 199, 0.28);
        }

        /* Unified Top Section & Decorative Blobs */
        .top-section {
            position: relative;
            background: #FFFFFF;
            overflow: hidden;
            padding-top: 100px;
        }

        .blur-shape {
            position: absolute;
            border-radius: 50%;
            z-index: 0;
            pointer-events: none;
        }

        .blob-right {
            width: 550px;
            height: 550px;
            background: radial-gradient(circle, rgba(2, 132, 199, 0.22) 0%, rgba(2, 132, 199, 0) 70%);
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            filter: blur(80px);
        }

        .blob-left {
            width: 580px;
            height: 580px;
            background: radial-gradient(circle, rgba(2, 132, 199, 0.32) 0%, rgba(2, 132, 199, 0) 70%);
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            filter: blur(80px);
        }

        .blob-center {
            width: 250px;
            height: 250px;
            background: radial-gradient(circle, rgba(234,247,255,0.9) 0%, rgba(244,251,255,0.2) 100%);
            top: -40px;
            left: 35%;
            filter: blur(100px);
            z-index: 1;
        }

        .hero {
            background: transparent;
            padding: 96px 0;
            position: relative;
            z-index: 2;
        }

        .hero-container {
            display: grid;
            grid-template-columns: 1.3fr 0.7fr;
            gap: 48px;
            align-items: center;
            text-align: left;
            position: relative;
            z-index: 2;
        }

        .hero-text {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            text-align: left;
            position: relative;
        }

        .hero-text > *:not(.blur-shape) {
            position: relative;
            z-index: 2;
        }

        /* Hero Brand Badge - Subtle & Minimal */
        .hero-brand-badge {
            font-size: 13px;
            font-weight: 700;
            color: var(--muted-text);
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 24px;
            opacity: 0.8;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .hero-brand-badge img {
            height: 16px;
            border-radius: 3px;
        }

        .hero-text h1 {
            font-family: 'Be Vietnam Pro', sans-serif;
            font-size: clamp(32px, 3.5vw, 44px);
            color: var(--dark-text); /* Changed from var(--primary-blue) to dark charcoal black */
            margin-bottom: 36px; /* Increased from 24px */
            line-height: 1.3;
            text-align: left;
            font-weight: 800;
            letter-spacing: -0.5px;
        }

        .hero-desc {
            font-size: 20px;
            max-width: 650px;
            margin: 0 0 36px;
            color: var(--muted-text);
            text-align: left;
            line-height: 1.65;
        }

        /* Highlight color for description */
        .highlight-desc {
            color: #0b4aa2;
            font-weight: 700;
        }

        .desktop-br {
            display: block;
        }

        /* Highlight color for title */
        .highlight-blue {
            color: #0b4aa2;
        }

        /* Social Proof Block - Centered Capsule under the Hero columns */
        .hero-social-proof-wrapper {
            grid-column: 1 / -1;
            display: flex;
            justify-content: center;
            width: 100%;
            margin-top: 48px;
            position: relative;
            z-index: 2;
        }

        .hero-social-proof {
            display: inline-flex;
            align-items: center;
            font-weight: 600;
            font-size: 16px;
            color: var(--dark-text);
            max-width: 100%;
            text-align: center;
            justify-content: center;
            gap: 4px;
        }

        .proof-highlight {
            color: #2563eb;
            font-weight: 800;
        }

        /* Hero Checklist */
        .hero-checklist {
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-bottom: 48px; /* Increased from 40px */
            list-style: none;
            width: 100%;
        }

        .hero-checklist-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 18px;
            font-weight: 600;
            color: var(--dark-text);
        }

        .hero-checklist-item .check-icon {
            color: #16a34a;
            font-weight: 800;
            font-size: 20px;
            line-height: 1;
        }

        .cta-group {
            display: flex;
            align-items: center;
            justify-content: flex-start;
            flex-wrap: wrap;
            gap: 24px;
            width: 100%;
        }

        /* CTA Primary Button - Biggest Accent */
        .cta-btn {
            display: inline-block;
            padding: 18px 36px;
            background: var(--primary-blue);
            color: var(--white);
            border-radius: 999px;
            text-decoration: none;
            font-weight: 800;
            font-size: 19px;
            transition: all 0.2s ease;
            box-shadow: 0 8px 24px rgba(2, 132, 199, 0.28);
            border: none;
            cursor: pointer;
            text-align: center;
        }

        .cta-btn:hover {
            transform: translateY(-2px);
            background: var(--primary-blue-hover);
            box-shadow: 0 12px 28px rgba(2, 132, 199, 0.38);
        }

        /* CTA Secondary Link */
        .cta-link {
            color: var(--primary-blue);
            text-decoration: none;
            font-weight: 700;
            font-size: 17px;
            transition: color 0.2s ease;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .cta-link:hover {
            color: var(--primary-blue-hover);
            text-decoration: underline;
        }

        .hero-image-wrapper {
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
            width: 100%;
        }

        .hero-image-wrapper > *:not(.blur-shape) {
            position: relative;
            z-index: 2;
        }

        /* Minimal Timeline Roadmap */
        /* Minimal Timeline Roadmap - Premium Glassmorphism Redesign */
        .roadmap-timeline {
            display: flex;
            flex-direction: column;
            gap: 32px;
            position: relative;
            padding: 32px 40px;
            width: 100%;
            max-width: 380px;
            margin-left: auto;
            background: rgba(255, 255, 255, 0.7);
            border-radius: 32px;
            border: 1px solid rgba(255, 255, 255, 0.6);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            box-shadow: 0 20px 40px rgba(2, 132, 199, 0.06);
        }

        .roadmap-timeline::before {
            content: '';
            position: absolute;
            top: 40px;
            bottom: 40px;
            left: 56px;
            width: 2px;
            background: linear-gradient(to bottom, var(--light-blue) 0%, var(--primary-blue) 100%);
            z-index: 1;
        }

        .roadmap-node {
            display: flex;
            align-items: center;
            gap: 20px;
            position: relative;
            z-index: 2;
        }

        .roadmap-dot {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--white);
            border: 3px solid var(--primary-blue);
            box-shadow: 0 4px 10px rgba(2, 132, 199, 0.1);
            display: flex;
            justify-content: center;
            align-items: center;
            transition: all 0.2s ease;
        }

        .roadmap-node:hover .roadmap-dot {
            background: var(--primary-blue);
            transform: scale(1.1);
        }

        .roadmap-dot::after {
            content: '↓';
            font-size: 14px;
            font-weight: 800;
            color: var(--primary-blue);
            transition: color 0.2s ease;
        }

        .roadmap-node:hover .roadmap-dot::after {
            color: var(--white);
        }

        .roadmap-node:last-child .roadmap-dot::after {
            content: '✓';
            color: #16a34a;
        }

        .roadmap-node:last-child:hover .roadmap-dot::after {
            color: var(--white);
        }

        .roadmap-node:last-child:hover .roadmap-dot {
            border-color: #16a34a;
            background: #16a34a;
        }

        .roadmap-text {
            font-size: 19px;
            font-weight: 700;
            color: var(--dark-text);
            transition: transform 0.2s ease, color 0.2s ease;
        }

        .roadmap-node:hover .roadmap-text {
            color: var(--primary-blue);
            transform: translateX(6px);
        }

        section {
            padding: 56px 0;
        }

        .section-title {
            text-align: center;
            font-size: 36px;
            color: var(--primary-blue);
            margin-bottom: 12px;
        }

        .section-subtitle {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 32px;
            color: var(--muted-text);
            font-size: 19px;
        }

        .grade-tabs {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-bottom: 32px;
        }

        .grade-tab {
            border: none;
            padding: 12px 18px;
            border-radius: 999px;
            background: var(--white);
            color: var(--primary-blue);
            font-weight: 700;
            cursor: pointer;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            transition: 0.2s;
            font-size: 16px;
        }

        .grade-tab.active,
        .grade-tab:hover {
            background: var(--primary-blue);
            color: var(--white);
        }

        .curriculum-card {
            display: none;
            background: var(--white);
            border-radius: 28px;
            padding: 32px;
            box-shadow: 0 8px 26px rgba(0, 0, 0, 0.08);
        }

        .curriculum-card.active {
            display: block;
        }

        .curriculum-card h3 {
            font-size: 30px;
            color: var(--primary-blue);
            margin-bottom: 10px;
        }

        /* Custom Book Tags */
        .book-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 24px;
        }

        .tag {
            font-size: 14px;
            font-weight: 700;
            padding: 6px 14px;
            border-radius: 999px;
            display: inline-block;
        }

        .tag-phonics {
            background: #fffbeb;
            color: #b45309;
            border: 1px solid rgba(217, 119, 6, 0.15);
        }

        .tag-global {
            background: #f0fdf4;
            color: #15803d;
            border: 1px solid rgba(22, 163, 74, 0.15);
        }

        .tag-cambridge {
            background: #eff6ff;
            color: #1d4ed8;
            border: 1px solid rgba(37, 99, 235, 0.15);
        }

        /* Option tabs inside card */
        .option-tabs {
            display: flex;
            gap: 8px;
            margin-bottom: 24px;
            background: #f1f5f9;
            padding: 5px;
            border-radius: 999px;
            width: max-content;
            max-width: 100%;
        }

        .option-tab {
            border: none;
            background: transparent;
            color: var(--muted-text);
            font-size: 14px;
            font-weight: 700;
            padding: 8px 18px;
            border-radius: 999px;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .option-tab:hover {
            color: var(--primary-blue);
        }

        .option-tab.active {
            background: var(--white);
            color: var(--primary-blue);
            box-shadow: 0 4px 10px rgba(2, 132, 199, 0.08);
        }

        /* Option contents switching */
        .option-content {
            display: none;
        }

        .option-content.active {
            display: block;
        }

        /* Premium Redesigned Curriculum Layout */
        .curriculum-summary-layout {
            display: grid;
            grid-template-columns: 0.95fr 1.05fr;
            gap: 40px;
            margin-top: 16px;
            align-items: center;
        }

        .curriculum-visual {
            background: rgba(255, 255, 255, 0.65);
            border: 1px solid rgba(2, 132, 199, 0.15);
            border-radius: 20px;
            padding: 16px;
            box-shadow: 0 10px 30px rgba(2, 132, 199, 0.04);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            display: flex;
            justify-content: center;
            align-items: center;
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .curriculum-visual:hover {
            transform: translateY(-4px);
            box-shadow: 0 15px 35px rgba(2, 132, 199, 0.08);
        }

        .curriculum-visual img {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
            object-fit: cover;
            display: block;
        }

        .curriculum-info {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .curriculum-trust-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .trust-badge {
            font-size: 14px;
            font-weight: 700;
            padding: 6px 14px;
            background: #fffbeb;
            color: #d97706;
            border: 1px solid rgba(217, 119, 6, 0.15);
            border-radius: 999px;
            letter-spacing: 0.2px;
        }

        .trust-badge.badge-blue {
            background: #f0f9ff;
            color: var(--primary-blue);
            border-color: rgba(2, 132, 199, 0.15);
        }

        .curriculum-info h3 {
            font-family: 'Be Vietnam Pro', sans-serif;
            font-size: 28px;
            font-weight: 800;
            color: var(--dark-text);
            margin: 0;
            line-height: 1.25;
        }

        .curriculum-bullets {
            list-style: none;
            padding: 0;
            margin: 8px 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .curriculum-bullets li {
            font-size: 16px;
            color: var(--muted-text);
            line-height: 1.5;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .diamond-icon {
            color: var(--primary-blue);
            font-weight: bold;
            font-size: 16px;
            line-height: 1;
            margin-top: 1px;
        }

        .curriculum-bullets li strong {
            color: var(--dark-text);
        }

        .curriculum-ctas {
            display: flex;
            align-items: center;
            gap: 20px;
            margin-top: 8px;
            flex-wrap: wrap;
        }

        .curriculum-primary-cta {
            display: inline-block;
            padding: 12px 28px;
            background: #2563eb;
            color: var(--white);
            border-radius: 999px;
            text-decoration: none;
            font-weight: 700;
            font-size: 16px;
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.2);
            transition: all 0.2s ease;
            border: none;
            cursor: pointer;
        }

        .curriculum-primary-cta:hover {
            background: #1d4ed8;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.3);
        }

        .curriculum-secondary-cta {
            background: transparent;
            border: none;
            color: var(--primary-blue);
            font-weight: 700;
            font-size: 16px;
            cursor: pointer;
            padding: 0;
            transition: color 0.2s ease, transform 0.2s ease;
            display: inline-flex;
            align-items: center;
        }

        .curriculum-secondary-cta:hover {
            color: var(--primary-blue-hover);
            transform: translateX(4px);
            text-decoration: underline;
        }

        /* Dynamic Popup Modal Styling */
        .curriculum-modal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 2000;
            display: none;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }

        .curriculum-modal.active {
            display: flex;
        }

        .curriculum-modal-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(15, 23, 42, 0.5);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .curriculum-modal.active .curriculum-modal-overlay {
            opacity: 1;
        }

        .curriculum-modal-container {
            position: relative;
            background: var(--white);
            width: min(840px, 100%);
            max-height: 90vh;
            border-radius: 28px;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
            display: flex;
            flex-direction: column;
            overflow: hidden;
            z-index: 2001;
            transform: scale(0.9) translateY(20px);
            opacity: 0;
            transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s ease;
        }

        .curriculum-modal.active .curriculum-modal-container {
            transform: scale(1) translateY(0);
            opacity: 1;
        }

        .curriculum-modal-close {
            position: absolute;
            top: 20px;
            right: 24px;
            font-size: 34px;
            line-height: 1;
            background: #f1f5f9;
            color: var(--muted-text);
            border: none;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.2s ease;
            z-index: 10;
        }

        .curriculum-modal-close:hover {
            background: #e2e8f0;
            color: var(--dark-text);
            transform: rotate(90deg);
        }

        .curriculum-modal-header {
            padding: 32px 32px 20px;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .modal-grade-label {
            font-size: 14px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--primary-blue);
        }

        .modal-title {
            font-family: 'Be Vietnam Pro', sans-serif;
            font-size: 26px;
            font-weight: 850;
            color: var(--dark-text);
            margin: 0;
        }

        .curriculum-modal-body {
            padding: 32px;
            overflow-y: auto;
            flex-grow: 1;
        }

        /* Ensure card layouts look premium inside the modal */
        .curriculum-modal-body .card-layout {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr !important;
            gap: 28px !important;
            margin-top: 0 !important;
        }

        .curriculum-modal-body .card-right {
            background: #f8fafc !important;
            border: 1px solid rgba(2, 132, 199, 0.1) !important;
            padding: 24px !important;
            border-radius: 20px !important;
            box-shadow: none !important;
        }

        .curriculum-modal-footer {
            padding: 20px 32px;
            border-top: 1px solid rgba(0, 0, 0, 0.05);
            background: #f8fafc;
            display: flex;
            justify-content: center;
        }

        .modal-cta-btn {
            display: inline-block;
            padding: 12px 28px;
            background: #2563eb;
            color: var(--white);
            border-radius: 999px;
            text-decoration: none;
            font-weight: 700;
            font-size: 16px;
            box-shadow: 0 4px 10px rgba(37, 99, 235, 0.15);
            transition: all 0.2s ease;
            border: none;
            cursor: pointer;
            text-align: center;
        }

        .modal-cta-btn:hover {
            background: #1d4ed8;
            box-shadow: 0 6px 16px rgba(37, 99, 235, 0.25);
            transform: translateY(-1px);
        }

        /* Card Body Layout */
        .card-layout {
            display: grid;
            grid-template-columns: 1.3fr 0.7fr;
            gap: 32px;
            margin-top: 12px;
        }

        .card-left {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .card-left-grid {
            display: flex !important;
            flex-direction: column !important;
            gap: 16px !important;
        }

        .card-left-grid .card-section {
            background: #f8fafc;
            border: 1px solid rgba(2, 132, 199, 0.12);
            border-radius: 12px;
            padding: 18px 24px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            transition: all 0.2s ease;
        }

        .card-left-grid .card-section:hover {
            border-color: rgba(2, 132, 199, 0.25);
            box-shadow: 0 4px 12px rgba(2, 132, 199, 0.03);
            transform: translateY(-1px);
        }

        .card-left-grid .card-section .method-box {
            background: transparent;
            border-left: 3px solid var(--primary-blue);
            padding: 0 0 0 12px;
            border-radius: 0;
            margin-top: 6px;
        }

        .card-section h4 {
            color: var(--primary-blue);
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .card-section p, .card-section ul {
            font-size: 16px;
            color: var(--dark-text);
            line-height: 1.6;
        }

        .card-section ul {
            padding-left: 20px;
        }

        /* Highlight Box for 1-1 Teaching Method - Mint Green Accent - Entire Block Highlight */
        .card-section:has(.method-box) {
            background: #F4F9F6 !important;
            border: none !important;
            box-shadow: 0 4px 16px rgba(16, 185, 129, 0.05) !important;
            padding: 20px 24px !important;
            border-radius: 16px !important;
        }

        .card-section:has(.method-box) h4 {
            color: #10b981 !important;
        }

        .method-box {
            background: transparent !important;
            border: none !important;
            padding: 0 !important;
            margin-top: 6px !important;
            box-shadow: none !important;
        }

        .method-box p {
            font-style: normal !important;
            color: #065f46 !important;
            font-size: 15px;
            line-height: 1.6;
        }

        /* Card Right Column (Tuition & Duration) */
        .card-right {
            background: var(--light-blue-bg);
            border-radius: 24px;
            padding: 38px 28px 22px;
            display: flex;
            flex-direction: column;
            gap: 24px;
            justify-content: center;
            border: 1px dashed rgba(2, 132, 199, 0.2);
        }

        .card-right-section h4 {
            color: var(--primary-blue);
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 6px;
            text-transform: none;
            letter-spacing: 0.5px;
        }

        .card-right-section p {
            font-size: 17px;
            font-weight: 600;
            color: var(--dark-text);
            line-height: 1.5;
        }

        .tuition-cta {
            display: inline-flex;
            align-items: center;
            color: var(--primary-blue);
            font-weight: 700;
            font-size: 15px;
            text-decoration: none;
            margin-top: 8px;
            transition: all 0.2s;
            gap: 4px;
        }

        .tuition-cta:hover {
            color: var(--primary-blue-hover);
            text-decoration: underline;
        }

        /* Card Footer with Main Button */
        .card-footer {
            display: flex;
            justify-content: center;
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid rgba(0, 0, 0, 0.06);
        }

        .card-cta-btn {
            display: inline-block;
            padding: 14px 32px;
            background: #2563eb;
            color: var(--white);
            border-radius: 999px;
            text-decoration: none;
            font-weight: 700;
            font-size: 17px;
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.2);
            transition: all 0.2s ease;
            border: none;
            cursor: pointer;
        }

        .card-cta-btn:hover {
            background: #1d4ed8;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.3);
        }

        .benefits {
            background: var(--white);
        }

        .benefit-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .benefit-card {
            background: var(--light-blue-bg);
            padding: 24px;
            border-radius: 24px;
            text-align: center;
            box-shadow: 0 5px 16px rgba(0, 0, 0, 0.05);
        }

        .benefit-card h3 {
            color: var(--primary-blue);
            margin-bottom: 8px;
            font-size: 20px;
        }

        .benefit-card p {
            font-size: 16px;
        }

        .contact {
            background: linear-gradient(135deg, var(--light-blue), var(--light-yellow-bg));
            text-align: center;
        }

        .contact-box {
            background: var(--white);
            padding: 32px;
            border-radius: 28px;
            max-width: 680px;
            margin: auto;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
        }

        .phone {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary-blue);
            margin: 18px 0;
        }

        footer {
            text-align: center;
            padding: 24px;
            font-size: 15px;
            color: var(--muted-text);
            background: var(--white);
        }

        /* Secondary Outline Button & CTA Subtext Styles */
        .tuition-cta-btn {
            display: block;
            width: 100%;
            text-align: center;
            padding: 12px 20px;
            background: transparent;
            color: var(--primary-blue);
            border: 2px solid var(--primary-blue);
            border-radius: 999px;
            text-decoration: none;
            font-weight: 700;
            font-size: 15px;
            transition: all 0.2s ease;
            margin-top: 16px;
            box-shadow: 0 2px 8px rgba(2, 132, 199, 0.05);
        }
        .tuition-cta-btn:hover {
            background: var(--primary-blue);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(2, 132, 199, 0.2);
        }
        .card-footer-cta {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
        }
        .card-cta-subtext {
            font-size: 14px;
            color: var(--muted-text);
            font-weight: 600;
            font-style: italic;
            opacity: 0.85;
            margin: 0;
            text-align: center;
        }

        @media (max-width: 900px) {
            .hero-container {
                grid-template-columns: 1fr;
                gap: 48px;
                text-align: center;
            }

            .hero-text {
                align-items: center;
                text-align: center;
            }

            .hero-brand-badge {
                justify-content: center;
                margin: 0 auto 16px auto;
            }

            .hero-text h1 {
                text-align: center;
            }

            .hero-desc {
                text-align: center;
                margin: 0 auto 24px;
                font-size: 18px;
            }

            .hero-social-proof-wrapper {
                margin-top: 32px;
            }

            .hero-checklist {
                align-items: flex-start;
                max-width: 460px;
                margin: 0 auto 36px auto;
                padding-left: 20px;
            }

            .cta-group {
                justify-content: center;
                flex-direction: column;
                gap: 16px;
            }

            .roadmap-timeline {
                margin: 0 auto;
                max-width: 100%;
                padding: 24px 30px;
            }

            .card-layout,
            .benefit-grid {
                grid-template-columns: 1fr;
            }

            .curriculum-summary-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .curriculum-modal-body .card-layout {
                grid-template-columns: 1fr !important;
                gap: 20px !important;
            }

            .curriculum-modal-container {
                max-height: 95vh;
                border-radius: 20px;
            }

            .curriculum-modal-body {
                padding: 20px;
            }

            .curriculum-modal-header {
                padding: 24px 20px 16px;
            }

            .curriculum-modal-footer {
                padding: 16px 20px;
                justify-content: center;
            }

            .modal-cta-btn {
                width: 100%;
            }

            .curriculum-card {
                padding: 24px;
            }

            .hero {
                padding: 56px 0;
            }
            .top-section {
                padding-top: 90px;
            }
            .desktop-br {
                display: none;
            }
        }

        @media (max-width: 600px) {
            .top-section {
                padding-top: 140px;
            }
            .blob-right {
                width: 280px;
                height: 280px;
                top: 50%;
                left: 50%;
                transform: translate(-50%, -50%);
                filter: blur(50px);
                background: radial-gradient(circle, rgba(2, 132, 199, 0.22) 0%, rgba(2, 132, 199, 0) 70%);
            }
            .blob-left {
                width: 280px;
                height: 280px;
                top: 50%;
                left: 50%;
                transform: translate(-50%, -50%);
                filter: blur(50px);
                background: radial-gradient(circle, rgba(2, 132, 199, 0.3) 0%, rgba(2, 132, 199, 0) 70%);
            }
            .blob-center {
                display: none;
            }
            .navbar {
                padding: 8px 0;
            }
            .nav-container {
                flex-wrap: wrap;
                justify-content: center;
                gap: 16px;
            }
            .nav-left {
                width: 100%;
                display: flex;
                justify-content: center;
            }
            .nav-brand {
                justify-content: center;
                gap: 10px;
            }
            .nav-logo {
                height: 52px;
            }
            .nav-brand-text {
                align-items: center;
            }
            .nav-title {
                font-size: 26px;
            }
            .nav-subtitle {
                font-size: 10px;
                letter-spacing: 1.2px;
                margin-top: 4px;
            }
            .nav-menu {
                justify-content: center;
                gap: 16px;
                width: 100%;
            }
            .nav-link {
                font-size: 15px;
                padding: 6px 8px;
            }
            .nav-cta {
                padding: 8px 16px;
                font-size: 14px;
            }

            .option-tabs {
                width: 100%;
                display: grid;
                grid-template-columns: 1fr 1fr;
                border-radius: 12px;
                padding: 4px;
            }

            .option-tab {
                padding: 8px 10px;
                font-size: 13px;
                text-align: center;
                border-radius: 8px;
            }
        }

        /* Inline style overrides for larger font sizes */
        #curriculum span[style*="font-size: 14px"] {
            font-size: 16px !important;
        }
        #curriculum p[style*="font-size: 13px"] {
            font-size: 15px !important;
        }
        #curriculum p[style*="font-size: 14px"] {
            font-size: 16px !important;
        }
        #curriculum p[style*="font-size: 15px"] {
            font-size: 17px !important;
        }

        /* Justify content for tuition items: name to left, price to right */
        .card-right-section p:has(strong),
        .tuition-row {
            display: flex !important;
            justify-content: space-between !important;
            align-items: center !important;
            width: 100% !important;
            margin-bottom: 8px !important;
            white-space: nowrap !important;
            gap: 16px !important;
        }

        /* Styling for the tuition footnote dynamically injected */
        .tuition-note {
            font-size: 13px !important;
            font-weight: 500 !important;
            color: var(--muted-text) !important;
            font-style: italic;
            line-height: 1.4 !important;
            margin-top: auto !important;
            padding-top: 12px;
            border-top: 1px dashed rgba(2, 132, 199, 0.1);
            text-align: center;
        }

        /* Custom premium bullet points for curriculum details card-section */
        .card-section ul {
            padding-left: 20px;
            list-style-type: none !important;
            margin-top: 6px;
        }

        .card-section ul li {
            position: relative;
            margin-bottom: 8px;
            line-height: 1.6;
        }

        .card-section ul li::before {
            content: "•";
            color: var(--primary-blue);
            font-weight: bold;
            display: inline-block;
            width: 1em;
            margin-left: -1em;
        }

        /* Professional Working Process Timeline Styling */
        .process {
            background: linear-gradient(to bottom, #ffffff, var(--light-blue-bg));
            position: relative;
            padding: 80px 0;
        }

        .process-timeline {
            position: relative;
            max-width: 860px;
            margin: 48px auto 0;
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .process-step {
            display: flex;
            gap: 32px;
            position: relative;
            z-index: 1;
        }

        .step-number-wrapper {
            display: flex;
            flex-direction: column;
            align-items: center;
            width: 52px;
            flex-shrink: 0;
        }

        .step-number {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-blue), #2563eb);
            color: var(--white);
            font-weight: 800;
            font-size: 20px;
            display: flex;
            justify-content: center;
            align-items: center;
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.2);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            z-index: 2;
        }

        .step-connector {
            width: 2px;
            height: 100%;
            background: linear-gradient(to bottom, rgba(37, 99, 235, 0.2) 0%, rgba(37, 99, 235, 0.05) 100%);
            margin: 8px 0;
            position: relative;
            z-index: 1;
        }

        .step-content-card {
            flex-grow: 1;
            background: var(--white);
            border-radius: 20px;
            padding: 24px 32px;
            border: 1px solid rgba(2, 132, 199, 0.08);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            margin-bottom: 32px;
            cursor: default;
        }

        .step-content-card h3 {
            font-family: 'Be Vietnam Pro', sans-serif;
            font-size: 19px;
            font-weight: 700;
            color: var(--dark-text);
            margin-bottom: 10px;
            transition: color 0.3s ease;
        }

        .step-content-card p {
            font-size: 15px;
            color: var(--muted-text);
            line-height: 1.65;
        }

        /* Hover effects for premium feeling */
        .process-step:hover .step-number {
            transform: scale(1.1);
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.35);
        }

        .process-step:hover .step-content-card {
            transform: translateY(-4px);
            border-color: rgba(37, 99, 235, 0.25);
            box-shadow: 0 12px 28px rgba(2, 132, 199, 0.08);
        }

        .process-step:hover .step-content-card h3 {
            color: var(--primary-blue);
        }

        @media (max-width: 600px) {
            .process-step {
                gap: 16px;
            }
            .step-number {
                width: 44px;
                height: 44px;
                font-size: 17px;
            }
            .step-number-wrapper {
                width: 44px;
            }
            .step-content-card {
                padding: 18px 20px;
                margin-bottom: 24px;
            }
            .step-content-card h3 {
                font-size: 17px;
            }
            .step-content-card p {
                font-size: 14px;
            }
        }

        /* Redesigned Premium Popup Modal Styling */
        
        .curriculum-modal-container {
            width: min(940px, 95vw) !important;
            max-height: 92vh !important;
            border-radius: 24px !important;
        }

        /* Dynamic Content Wrapper */
        .curriculum-modal-content-wrapper {
            overflow-y: auto;
            max-height: 92vh;
            background: #f8fafc;
            display: flex;
            flex-direction: column;
            text-align: left;
        }

        /* Modal Header động */
        .modal-main-header {
            padding: 36px 36px 28px;
            background: var(--white);
            border-bottom: 1px solid rgba(0, 0, 0, 0.04);
            display: grid;
            grid-template-columns: 1fr 220px;
            gap: 24px;
            align-items: center;
            position: relative;
        }

        .header-left {
            display: flex;
            flex-direction: column;
            gap: 8px;
            align-items: flex-start;
        }

        .header-grade-badge {
            font-size: 12.5px;
            font-weight: 800;
            color: var(--primary-blue);
            text-transform: uppercase;
            letter-spacing: 1.2px;
        }

        .header-main-title {
            font-size: 34px;
            font-weight: 850;
            color: var(--dark-text);
            line-height: 1.2;
            margin: 0 0 4px 0;
            letter-spacing: -0.5px;
        }

        .header-subtitle {
            font-size: 16px;
            color: var(--muted-text);
            line-height: 1.5;
            margin: 0 0 6px 0;
            text-align: left;
        }

        .header-badges-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 4px;
        }

        .header-badge-item {
            font-size: 13px;
            font-weight: 700;
            padding: 6px 14px;
            border-radius: 999px;
        }

        .header-badge-item.badge-blue {
            background: #f0f9ff;
            color: var(--primary-blue);
            border: 1px solid rgba(2, 132, 199, 0.15);
        }

        .header-right {
            position: relative;
            display: flex;
            justify-content: flex-end;
            align-items: center;
            height: 140px;
        }

        .header-main-img {
            max-height: 140px;
            width: 100%;
            border-radius: 16px;
            object-fit: cover;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
        }

        /* Modal Body Layout 2 cột */
        .modal-layout-container {
            padding: 32px;
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 28px;
            align-items: start;
        }

        /* Cột trái: Các card */
        .modal-col-left {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .modal-card {
            border-radius: 20px;
            padding: 24px;
            position: relative;
            overflow: hidden;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.01);
            border: 1px solid rgba(0, 0, 0, 0.02);
            text-align: left;
        }

        .modal-card .card-title {
            font-size: 18px;
            font-weight: 800;
            margin-top: 0;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .modal-card .card-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
            position: relative;
            z-index: 2;
            max-width: 82%;
        }

        .modal-card .card-list li {
            font-size: 15px;
            line-height: 1.5;
            color: var(--dark-text);
            position: relative;
            padding-left: 22px;
            display: block;
            margin-bottom: 8px;
        }

        .modal-card .card-tick {
            position: absolute;
            left: 0;
            top: 2px;
            font-weight: 800;
            font-size: 14px;
        }

        /* Decor image in card corner */
        .card-decor-img {
            position: absolute;
            right: 12px;
            bottom: 12px;
            width: 76px;
            height: 76px;
            pointer-events: none;
            z-index: 1;
            opacity: 0.95;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .card-decor-img img {
            width: 100%;
            height: 100%;
            object-fit: contain;
        }

        /* Card specific styles */
        .card-suitable {
            background: #f0f7ff;
            border: 1px solid rgba(37, 99, 235, 0.06);
        }

        .card-suitable .card-title {
            color: #1e3a8a;
        }

        .card-suitable .card-tick {
            color: #2563eb;
        }

        .card-achieve {
            background: #f0fdf4;
            border: 1px solid rgba(22, 163, 74, 0.06);
        }

        .card-achieve .card-title {
            color: #065f46;
        }

        .card-achieve .card-tick {
            color: #16a34a;
        }

        /* Card 3: Cách học 1-1 */
        .card-method {
            background: #fffbeb;
            border: 1px solid rgba(217, 119, 6, 0.06);
        }

        .card-method .card-title {
            color: #b45309;
        }

        .method-desc {
            font-size: 15px;
            line-height: 1.6;
            color: #78350f;
            margin-bottom: 18px;
            text-align: left;
        }

        .method-features-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
        }

        .feature-item {
            background: var(--white);
            border: 1px solid rgba(217, 119, 6, 0.08);
            border-radius: 12px;
            padding: 12px 14px;
            display: flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 2px 6px rgba(0, 0, 0, 0.01);
            text-align: left;
        }

        .feature-icon {
            font-size: 18px;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            flex-shrink: 0;
        }

        .icon-people { background: #ecfdf5; color: #059669; }
        .icon-game { background: #f5f3ff; color: #7c3aed; }
        .icon-chat { background: #eff6ff; color: #2563eb; }
        .icon-chart { background: #fff5f5; color: #e11d48; }

        .feature-text {
            font-size: 13px;
            font-weight: 700;
            color: var(--dark-text);
            line-height: 1.3;
        }

        /* Cột phải: Thẻ thanh toán học phí */
        .tuition-payment-card {
            background: var(--white);
            border-radius: 24px;
            padding: 32px 24px 24px;
            border: 1px solid rgba(2, 132, 199, 0.08);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
            display: flex;
            flex-direction: column;
            gap: 20px;
            text-align: left;
        }

        .tuition-header {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .tuition-icon {
            font-size: 18px;
        }

        .tuition-title {
            font-size: 14.5px;
            font-weight: 800;
            color: var(--muted-text);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .tuition-price-wrapper {
            display: flex;
            align-items: baseline;
            gap: 6px;
            margin-top: -6px;
        }

        .price-from-label {
            font-size: 15px;
            font-weight: 600;
            color: var(--muted-text);
        }

        .price-amount {
            font-size: 38px;
            font-weight: 900;
            color: var(--primary-blue);
            line-height: 1;
            margin: 0;
            letter-spacing: -1px;
        }

        .price-unit {
            font-size: 14px;
            font-weight: 600;
            color: var(--muted-text);
        }

        .tuition-commitments {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .tuition-commitments li {
            font-size: 14px;
            font-weight: 650;
            color: var(--muted-text);
            display: flex;
            align-items: center;
            gap: 8px;
            text-align: left;
        }

        .commit-tick {
            color: #16a34a;
            font-weight: 900;
        }

        .tuition-divider {
            height: 1px;
            border-top: 1px dashed rgba(2, 132, 199, 0.15);
            margin: 4px 0;
        }

        .tutor-selection-section {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .tutor-header {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .tutor-icon {
            font-size: 16px;
            color: var(--muted-text);
        }

        .tutor-title {
            font-size: 14px;
            font-weight: 800;
            color: var(--muted-text);
        }

        .tutor-options-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .tutor-option-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: #f8fafc;
            border: 1px solid rgba(0, 0, 0, 0.02);
            padding: 8px 12px;
            border-radius: 12px;
            transition: all 0.2s;
        }

        .tutor-option-row:hover {
            background: #f1f5f9;
            transform: translateX(2px);
        }

        .tutor-type-info {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .tutor-avatar-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            font-size: 14px;
            flex-shrink: 0;
        }

        .tutor-avatar-icon.bg-green { background: #e6f4ea; color: #137333; }
        .tutor-avatar-icon.bg-blue { background: #e8f0fe; color: #1a73e8; }
        .tutor-avatar-icon.bg-purple { background: #f3e8fd; color: #ab47bc; }

        .tutor-name {
            font-size: 13.5px;
            font-weight: 700;
            color: var(--dark-text);
        }

        .tutor-price {
            font-size: 14.5px;
            font-weight: 800;
            color: var(--primary-blue);
        }

        /* Nút CTA lớn */
        .tuition-cta-main-btn {
            display: block;
            width: 100%;
            padding: 16px 24px;
            background: linear-gradient(135deg, var(--primary-blue), #2563eb);
            color: var(--white) !important;
            text-decoration: none;
            text-align: center;
            border-radius: 999px;
            font-weight: 850;
            font-size: 16.5px;
            box-shadow: 0 6px 18px rgba(37, 99, 235, 0.2);
            transition: all 0.2s;
            cursor: pointer;
            border: none;
        }

        .tuition-cta-main-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(37, 99, 235, 0.3);
            background: linear-gradient(135deg, var(--primary-blue-hover), #1d4ed8);
        }

        .tuition-footnote {
            font-size: 12.5px;
            font-weight: 500;
            color: var(--muted-text);
            line-height: 1.4;
            font-style: italic;
            text-align: center;
            margin: 0;
            opacity: 0.85;
        }

        /* Modal Footer cam kết */
        .modal-main-footer {
            background: #f1f5f9;
            border-top: 1px solid rgba(0, 0, 0, 0.04);
            padding: 20px 32px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .footer-commit-item {
            display: flex;
            align-items: center;
            gap: 8px;
            justify-content: center;
        }

        .commit-icon {
            font-size: 18px;
        }

        .commit-text {
            font-size: 13px;
            font-weight: 800;
            color: var(--muted-text);
            line-height: 1.3;
            text-align: left;
        }

        @media (max-width: 900px) {
            .curriculum-modal-container {
                width: min(640px, 95vw) !important;
                max-height: 95vh !important;
            }
            .curriculum-modal-content-wrapper {
                max-height: 95vh;
            }
            .modal-main-header {
                grid-template-columns: 1fr;
                gap: 16px;
                padding: 28px 24px 20px;
                text-align: center;
            }

            .header-left {
                text-align: center;
                align-items: center;
            }

            .header-badges-row {
                justify-content: center;
            }

            .header-right {
                justify-content: center;
                height: auto;
            }

            .header-main-img {
                max-height: 110px;
                width: auto;
            }

            .modal-layout-container {
                grid-template-columns: 1fr;
                padding: 24px;
                gap: 24px;
            }

            .modal-card .card-list {
                max-width: 100%;
            }

            .card-decor-img {
                display: none;
            }

            .method-features-grid {
                grid-template-columns: 1fr;
            }

            .modal-main-footer {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
                padding: 16px;
            }

            .footer-commit-item {
                justify-content: flex-start;
                padding-left: 12px;
            }
        }

        @media (max-width: 600px) {
            .modal-main-footer {
                grid-template-columns: 1fr;
                gap: 10px;
                padding: 12px;
            }
            .footer-commit-item {
                padding-left: 0;
                justify-content: center;
            }
        }