@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Fira+Code:wght@400;500&display=swap";:root{--primary-navy:#0f172a;--secondary-navy:#1e293b;--accent-blue:#3b82f6;--text-main:#1f2937;--text-muted:#64748b;--text-light:#f8fafc;--bg-main:#fff;--bg-card:#ffffffb3;--accent-orange:#fff7ed;--text-orange:#f97316;--border-color:#e2e8f080;--radius-lg:24px;--radius-md:16px;--radius-xl:50px;--shadow-lg:0 20px 25px -5px #0000001a, 0 8px 10px -6px #0000001a;--header-height:80px}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-main);color:var(--text-main);-webkit-font-smoothing:antialiased;padding-top:calc(var(--header-height) + 60px);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica 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h1{letter-spacing:-.03em;color:var(--primary-navy);margin-bottom:24px;font-size:clamp(2.6rem,5vw,4.2rem);line-height:1.1}.gradient-text{background:linear-gradient(135deg,#2563eb 0%,#7c3aed 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.features-hero p{color:var(--text-muted);max-width:700px;margin:0 auto;font-size:clamp(1rem,2vw,1.25rem);line-height:1.7}.stats-section{margin-top:0;padding-bottom:20px}.stats-row{flex-wrap:wrap;justify-content:center;gap:20px;display:flex}.stat-card{-webkit-backdrop-filter:blur(16px);background:#ffffffbf;border:1px solid #ffffffe6;border-radius:16px;flex:1;align-items:center;gap:16px;min-width:220px;max-width:320px;padding:20px 28px;transition:transform .3s,box-shadow .3s;display:flex;box-shadow:0 4px 20px #0000000a}.stat-card:hover{transform:translateY(-4px);box-shadow:0 12px 32px #00000012}.stat-icon{border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:48px;height:48px;display:flex}.stat-value{letter-spacing:-.02em;font-size:1.6rem;font-weight:800;line-height:1}.stat-label{color:var(--text-muted);margin-top:4px;font-size:.82rem;font-weight:500}.section-label{letter-spacing:.12em;text-transform:uppercase;color:var(--accent-blue);margin-bottom:12px;font-size:.75rem;font-weight:700}.features-grid-section{margin-top:80px}.features-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;margin-top:32px;display:grid}.feature-card{-webkit-backdrop-filter:blur(20px);background:#fffc;border:1px solid #ffffffe6;border-radius:24px;flex-direction:column;gap:0;padding:32px;transition:all .35s cubic-bezier(.2,.8,.2,1);display:flex;box-shadow:0 8px 30px #0000000a}.feature-card:hover{background:#fffffff2;border-color:#3b82f640;transform:translateY(-10px);box-shadow:0 24px 60px 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p{color:#ffffffa6;max-width:520px;margin-bottom:44px;margin-left:auto;margin-right:auto;font-size:1.1rem;line-height:1.7}.cta-btn-large{color:#fff;cursor:pointer;background:linear-gradient(135deg,#3b82f6,#6366f1);border:none;border-radius:100px;padding:18px 52px;font-size:1.05rem;font-weight:700;transition:all .3s;box-shadow:0 8px 24px #3b82f659}.cta-btn-large:hover{filter:brightness(1.08);transform:translateY(-4px);box-shadow:0 16px 40px #3b82f680}@media (width<=768px){.features-hero{padding-top:100px}.stats-row{flex-direction:column;align-items:center}.stat-card{width:100%;max-width:100%}.comparison-table th,.comparison-table td{padding:14px 12px;font-size:.85rem}.comparison-table th:first-child,.td-label{padding-left:16px!important}.cta-box{padding:48px 24px}}.contact-page{padding-bottom:100px}.contact-hero{text-align:center;padding:80px 20px 40px}.contact-hero h1{margin-bottom:20px;font-size:clamp(2.5rem,5vw,3.5rem)}.contact-hero p{color:var(--text-muted);max-width:600px;margin:0 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#0000000d;border-radius:14px;margin-bottom:28px;padding:16px 20px}.payment-order-summary-row{color:#475569;justify-content:space-between;align-items:center;padding:6px 0;font-size:.875rem;display:flex}.payment-order-summary-row:not(:last-child){border-bottom:1px solid #0000000d}.payment-order-summary-row span:first-child{color:#94a3b8}.payment-order-summary-row span:last-child{color:#1e293b;font-weight:600}.payment-order-summary-row.total span:last-child{color:#2563eb;font-size:1.1rem;font-weight:800}.payment-modal-actions{flex-direction:column;gap:12px;display:flex}.payment-btn-primary{cursor:pointer;border:none;border-radius:14px;justify-content:center;align-items:center;gap:8px;width:100%;padding:14px 20px;font-family:inherit;font-size:.95rem;font-weight:700;transition:all .25s;display:flex}.success .payment-btn-primary{color:#fff;background:linear-gradient(135deg,#22c55e,#10b981);box-shadow:0 8px 20px #22c55e4d}.success 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h3{color:var(--primary-navy);align-items:center;gap:12px;margin-bottom:24px;font-size:1.5rem;font-weight:700;display:flex}.payment-options{flex-direction:column;gap:16px;display:flex}.payment-option{cursor:pointer;background:#fffc;border:2px solid #0000;border-radius:16px;align-items:center;gap:16px;padding:16px 20px;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;position:relative;overflow:hidden;box-shadow:0 4px 12px #00000005}.payment-option:hover{background:#fff;transform:translateY(-2px);box-shadow:0 8px 24px #3b82f614}.payment-option.active{border-color:var(--accent-blue);background:#3b82f60a;box-shadow:0 8px 24px #3b82f61f}.payment-option.active:after{content:"✓";color:var(--accent-blue);font-size:1.2rem;font-weight:800;position:absolute;right:20px}.payment-info{flex-direction:column;gap:4px;display:flex}.payment-title{color:var(--primary-navy);font-size:1.05rem;font-weight:700}.payment-desc{color:var(--text-muted);font-size:.85rem}.momo-icon-placeholder,.vnpay-icon-placeholder{color:#fff;border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:40px;height:40px;font-size:1.2rem;font-weight:800;display:flex;box-shadow:0 4px 10px #0000001a}.momo-icon-placeholder{background:linear-gradient(135deg,#a50064,#e51a8d)}.vnpay-icon-placeholder{background:linear-gradient(135deg,#005baa,#00a3e0)}.payment-note{color:var(--text-muted);margin-top:24px;font-size:.9rem;line-height:1.6}.checkout-items{border-bottom:1px solid 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