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

  :root {
    --navy: #111111;
    --navy-mid: #1a1a1a;
    --navy-light: #222222;
    --accent: #F5A623;
    --accent-soft: #FFC252;
    --accent-pale: #FFF8EC;
    --accent-dark: #D4881A;
    --gold: #F5A623;
    --orange: #E8860A;
    --teal: #F5A623;
    --teal-dim: #D4881A;
    --white: #FFFFFF;
    --offwhite: #FAFAFA;
    --gray-100: #F2F2F2;
    --gray-200: #E0E0E0;
    --gray-400: #999999;
    --gray-600: #555555;
    --text: #111111;
    --text-muted: #666666;
    --radius: 16px;
    --radius-lg: 24px;
    --radius-pill: 999px;
  }

  html { scroll-behavior: smooth; }

  body {
    font-family: 'Open Sans', sans-serif;
    color: var(--text);
    background: var(--white);
    overflow-x: hidden;
    line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  }

  /* ── NAV ── */
  nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 6%;
    height: 72px;
    background: rgba(10,10,10,0.97);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,255,255,0.06);
  }
  .nav-logo {
    display: flex; align-items: center; gap: 4px;
    font-family: 'Lexend', sans-serif; font-weight: 800; font-size: 1.5rem; color: var(--white);
    text-decoration: none;
  }
  .nav-logo .hub-box {
    background: var(--accent); color: #111; border-radius: 7px;
    padding: 2px 9px; font-size: 1.35rem; font-weight: 800; line-height: 1.3;
  }
  .nav-logo svg { width: 28px; height: 28px; margin-right: 4px; }
  .nav-links { display: flex; gap: 36px; list-style: none; }
  .nav-links a {
    color: rgba(255,255,255,0.75); text-decoration: none; font-size: 0.875rem; font-weight: 500;
    transition: color .2s;
  }
  .nav-links a:hover { color: var(--white); }
  .nav-cta { display: flex; gap: 12px; align-items: center; }
  .btn-ghost {
    padding: 9px 22px; border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--radius-pill); font-size: 0.875rem; font-weight: 600;
    color: var(--white); background: transparent; cursor: pointer;
    transition: all .2s; text-decoration: none;
  }
  .btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
  .btn-primary {
    padding: 10px 24px; background: var(--accent);
    border: none; border-radius: var(--radius-pill); font-size: 0.875rem; font-weight: 700;
    color: var(--white); cursor: pointer; transition: all .2s;
    text-decoration: none; display: inline-block;
  }
  .btn-primary:hover { background: var(--accent-soft); transform: translateY(-1px); }

  /* ── HERO ── */
  .hero {
    position: relative; min-height: 100vh;
    background: #0e0e0e;
    display: flex; align-items: center;
    padding: 100px 6% 80px;
    overflow: hidden;
  }
  .hero-bg {
    position: absolute; inset: 0; pointer-events: none; overflow: hidden;
  }
  .hero-bg::before {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(135deg, #0e0e0e 0%, #141414 40%, #181410 60%, #0e0e0e 100%);
  }
  .hero-bg::after {
    content: '';
    position: absolute; top: -200px; right: -140px;
    width: 950px; height: 950px;
    border-radius: 50%;
    background: radial-gradient(circle at 55% 38%,
      rgba(245,166,35,0.28) 0%,
      rgba(232,134,10,0.15) 25%,
      rgba(200,100,0,0.06) 50%,
      transparent 68%);
  }
  /* Speed-light streaks */
  .hero-streaks {
    position: absolute; bottom: 0; right: 0;
    width: 60%; height: 60%; pointer-events: none; opacity: 0.4;
  }
  /* Secondary teal glow bottom */
  .hero-glow2 {
    position: absolute; bottom: -80px; right: 8%;
    width: 480px; height: 320px; border-radius: 50%;
    background: radial-gradient(ellipse, rgba(245,166,35,0.18) 0%, transparent 65%);
    pointer-events: none;
  }
  .hero-glow3 {
    position: absolute; top: 25%; left: -60px;
    width: 380px; height: 380px; border-radius: 50%;
    background: radial-gradient(circle, rgba(245,166,35,0.07) 0%, transparent 65%);
    pointer-events: none;
  }
  .hero-grid {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 60px; align-items: center;
    max-width: 1200px; margin: 0 auto; width: 100%;
    position: relative; z-index: 1;
  }
  .hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: rgba(245,166,35,0.12); border: 1px solid rgba(245,166,35,0.35);
    border-radius: var(--radius-pill); padding: 6px 16px;
    font-size: 0.8rem; font-weight: 600; color: var(--accent);
    margin-bottom: 24px;
  }
  .hero-badge span { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); display: inline-block; animation: pulse 2s infinite; }
  @keyframes pulse { 0%,100% { opacity:1 } 50% { opacity:0.3 } }
  .hero h1 {
    font-family: 'Lexend', sans-serif; font-weight: 800;
    font-size: clamp(2.4rem, 4vw, 3.6rem); line-height: 1.1;
    color: var(--white); margin-bottom: 24px;
    letter-spacing: -0.02em;
  }
  .hero h1 em { color: var(--accent); font-style: normal; }
  .hero p {
    font-size: 1.05rem; color: rgba(255,255,255,0.65);
    line-height: 1.75; margin-bottom: 40px; max-width: 480px;
  }
  .hero-actions { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
  .btn-hero {
    padding: 15px 32px; background: var(--accent); border: none;
    border-radius: var(--radius-pill); font-size: 1rem; font-weight: 700;
    color: #111; cursor: pointer; transition: all .25s;
    text-decoration: none; display: inline-block;
  }
  .btn-hero:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(245,166,35,0.35); }
  .btn-hero-outline {
    padding: 14px 30px; background: transparent;
    border: 1.5px solid rgba(255,255,255,0.25); border-radius: var(--radius-pill);
    font-size: 1rem; font-weight: 600; color: var(--white); cursor: pointer;
    transition: all .25s; text-decoration: none; display: inline-block;
  }
  .btn-hero-outline:hover { border-color: var(--white); }
  .hero-stats {
    display: flex; gap: 36px; margin-top: 48px;
    padding-top: 36px; border-top: 1px solid rgba(255,255,255,0.1);
  }
  .hero-stat-num {
    font-family: 'Lexend', sans-serif; font-size: 1.8rem; font-weight: 800;
    color: var(--white); line-height: 1;
  }
  .hero-stat-num span { color: var(--accent); }
  .hero-stat-label { font-size: 0.78rem; color: rgba(255,255,255,0.5); margin-top: 4px; }

  /* Dashboard mockup */
  .hero-visual {
    position: relative;
  }
  .dashboard-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: var(--radius-lg);
    padding: 28px;
    backdrop-filter: blur(8px);
  }
  .dash-header {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 20px;
  }
  .dash-title { font-size: 0.8rem; font-weight: 600; color: rgba(255,255,255,0.6); text-transform: uppercase; letter-spacing: .08em; }
  .dash-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
  .dash-metrics {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 24px;
  }
  .dash-metric {
    background: rgba(255,255,255,0.05);
    border-radius: 12px; padding: 14px 16px;
    border: 1px solid rgba(255,255,255,0.07);
  }
  .dash-metric-val {
    font-family: 'Lexend', sans-serif; font-size: 1.5rem; font-weight: 700;
    color: var(--white); line-height: 1;
  }
  .dash-metric-lbl { font-size: 0.7rem; color: rgba(255,255,255,0.45); margin-top: 4px; }
  .dash-metric-change {
    font-size: 0.7rem; font-weight: 600; color: var(--accent); margin-top: 2px;
  }
  .chart-bars {
    display: flex; align-items: flex-end; gap: 8px; height: 80px; margin-bottom: 20px;
  }
  .bar-wrap { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 4px; height: 100%; justify-content: flex-end; }
  .bar {
    width: 100%; border-radius: 4px 4px 0 0;
    background: rgba(255,107,44,0.25);
    border: 1px solid rgba(255,107,44,0.4);
    transition: all .3s;
  }
  .bar.accent { background: var(--accent); border-color: var(--accent); }
  .bar-lbl { font-size: 0.6rem; color: rgba(255,255,255,0.35); }
  .vehicle-list { display: flex; flex-direction: column; gap: 8px; }
  .vehicle-row {
    display: flex; align-items: center; gap: 12px;
    padding: 10px 12px; background: rgba(255,255,255,0.04);
    border-radius: 10px; border: 1px solid rgba(255,255,255,0.06);
  }
  .vehicle-icon {
    width: 32px; height: 32px; border-radius: 8px;
    background: rgba(255,107,44,0.15); display: flex; align-items: center; justify-content: center;
  }
  .vehicle-icon svg { width: 16px; height: 16px; }
  .vehicle-info { flex: 1; }
  .vehicle-id { font-size: 0.75rem; font-weight: 600; color: var(--white); }
  .vehicle-route { font-size: 0.65rem; color: rgba(255,255,255,0.4); }
  .vehicle-status {
    font-size: 0.65rem; font-weight: 600; padding: 3px 8px;
    border-radius: var(--radius-pill);
  }
  .status-active { background: rgba(245,166,35,0.15); color: var(--accent-dark); font-weight:700; }
  .status-transit { background: rgba(245,166,35,0.15); color: var(--gold); }

  /* floating chips */
  .float-chip {
    position: absolute; background: var(--white);
    border-radius: 12px; padding: 10px 16px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.25);
    font-size: 0.75rem; font-weight: 600; color: var(--text);
    display: flex; align-items: center; gap: 8px;
    animation: float 4s ease-in-out infinite;
  }
  @keyframes float {
    0%,100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
  }
  .float-chip:nth-child(2) { animation-delay: 1.5s; }
  .chip-icon { width: 28px; height: 28px; border-radius: 8px; display: flex; align-items: center; justify-content: center; }

  /* ── LOGOS ── */
  .logos {
    background: #161616;
    padding: 28px 6%;
    border-top: 1px solid rgba(255,255,255,0.06);
    border-bottom: 1px solid rgba(255,255,255,0.06);
  }
  .logos-inner {
    max-width: 1100px; margin: 0 auto;
    display: flex; align-items: center; gap: 16px;
  }
  .logos-label {
    font-size: 0.75rem; color: rgba(255,255,255,0.35); font-weight: 500;
    white-space: nowrap; text-transform: uppercase; letter-spacing: .08em;
  }
  .logos-divider { width: 1px; height: 24px; background: rgba(255,255,255,0.1); margin: 0 8px; }
  .logos-scroll { display: flex; gap: 40px; align-items: center; overflow: hidden; flex: 1; }
  .logo-item {
    font-family: 'Lexend', sans-serif; font-weight: 700; font-size: 0.9rem;
    color: rgba(255,255,255,0.92); white-space: nowrap;
    transition: color .2s;
  }
  .logo-item:hover { color: rgba(255,255,255,1); }

  /* ── FEATURES ── */
  .features {
    padding: 100px 6%;
    background: var(--offwhite);
  }
  .section-tag {
    display: inline-block; font-size: 0.75rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: .12em;
    color: var(--accent); margin-bottom: 14px;
  }
  .section-title {
    font-family: 'Lexend', sans-serif; font-size: clamp(1.8rem, 3vw, 2.8rem);
    font-weight: 800; color: var(--navy); line-height: 1.2;
    letter-spacing: -0.02em;
  }
  .section-sub {
    font-size: 1.05rem; color: var(--text-muted); margin-top: 16px;
    max-width: 580px; line-height: 1.75;
  }
  .section-head { margin-bottom: 60px; }
  .features-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 24px; max-width: 1200px; margin: 0 auto;
  }
  .feature-card {
    background: var(--white); border-radius: var(--radius-lg);
    padding: 32px; border: 1px solid var(--gray-100);
    transition: all .3s; cursor: default;
    position: relative; overflow: hidden;
  }
  .feature-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--gold));
    transform: scaleX(0); transform-origin: left;
    transition: transform .3s;
  }
  .feature-card:hover { transform: translateY(-4px); box-shadow: 0 20px 60px rgba(0,0,0,0.08); }
  .feature-card:hover::before { transform: scaleX(1); }
  .feature-icon {
    width: 52px; height: 52px; border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 20px;
  }
  .feature-icon svg { width: 24px; height: 24px; }
  .fi-orange { background: rgba(255,107,44,0.1); }
  .fi-orange svg { color: var(--accent); }
  .fi-teal { background: rgba(245,166,35,0.1); }
  .fi-teal svg { color: var(--orange); }
  .fi-navy { background: rgba(245,166,35,0.08); }
  .fi-navy svg { color: var(--accent-dark); }
  .fi-gold { background: rgba(245,166,35,0.1); }
  .fi-gold svg { color: var(--gold); }
  .fi-purple { background: rgba(111,66,193,0.1); }
  .fi-purple svg { color: #6f42c1; }
  .fi-green { background: rgba(40,167,69,0.1); }
  .fi-green svg { color: #28a745; }
  .feature-card h3 {
    font-size: 1.1rem; font-weight: 700; color: var(--navy);
    margin-bottom: 10px;
  }
  .feature-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; }

  /* ── HOW IT WORKS ── */
  .how {
    padding: 100px 6%; background: #111111;
    overflow: hidden; position: relative;
  }
  .how::before {
    content: ''; position: absolute; top: 0; right: 0; bottom: 0;
    width: 50%; background: rgba(245,166,35,0.03);
    clip-path: polygon(15% 0, 100% 0, 100% 100%, 0% 100%);
  }
  .how .section-tag { color: var(--accent); }
  .how .section-title { color: var(--white); }
  .how .section-sub { color: rgba(255,255,255,0.55); }
  .how-inner { max-width: 1200px; margin: 0 auto; position: relative; z-index: 1; }
  .how-grid {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 80px; align-items: center; margin-top: 60px;
  }
  .steps { display: flex; flex-direction: column; gap: 0; }
  .step {
    display: flex; gap: 24px; padding: 32px 0;
    border-bottom: 1px solid rgba(255,255,255,0.07);
    transition: all .2s;
  }
  .step:last-child { border-bottom: none; }
  .step:hover .step-num { background: var(--accent); color: #111; }
  .step-num {
    width: 40px; height: 40px; border-radius: 10px; flex-shrink: 0;
    background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12);
    display: flex; align-items: center; justify-content: center;
    font-family: 'Lexend', sans-serif; font-weight: 800; font-size: 0.95rem;
    color: rgba(255,255,255,0.5); transition: all .25s;
  }
  .step-content h4 { font-size: 1.05rem; font-weight: 700; color: var(--white); margin-bottom: 8px; }
  .step-content p { font-size: 0.9rem; color: rgba(255,255,255,0.5); line-height: 1.7; }
  .how-visual {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg); padding: 32px;
  }
  .map-placeholder {
    width: 100%; height: 220px;
    background: rgba(245,166,35,0.06);
    border: 1px solid rgba(245,166,35,0.2);
    border-radius: 12px; margin-bottom: 20px;
    display: flex; align-items: center; justify-content: center;
    position: relative; overflow: hidden;
  }
  .map-grid {
    position: absolute; inset: 0;
    background-image: linear-gradient(rgba(0,201,167,0.07) 1px, transparent 1px),
      linear-gradient(90deg, rgba(0,201,167,0.07) 1px, transparent 1px);
    background-size: 30px 30px;
  }
  .map-ping {
    position: absolute; width: 12px; height: 12px;
    border-radius: 50%; background: var(--accent);
    box-shadow: 0 0 0 0 rgba(245,166,35,0.5);
    animation: ping 2s infinite;
  }
  @keyframes ping {
    0% { box-shadow: 0 0 0 0 rgba(245,166,35,0.5); }
    100% { box-shadow: 0 0 0 20px rgba(245,166,35,0); }
  }
  .map-ping-2 { background: var(--accent-soft); box-shadow: 0 0 0 0 rgba(245,166,35,0.5); animation-delay: 1s; }
  @keyframes ping2 {
    0% { box-shadow: 0 0 0 0 rgba(245,166,35,0.5); }
    100% { box-shadow: 0 0 0 20px rgba(245,166,35,0); }
  }
  .map-line {
    position: absolute; opacity: 0.4;
    stroke: var(--accent); stroke-width: 1.5; stroke-dasharray: 6 4;
  }

  /* ── BENEFITS ── */
  .benefits {
    padding: 100px 6%; background: var(--white);
  }
  .benefits-inner { max-width: 1200px; margin: 0 auto; }
  .benefits-grid {
    display: grid; grid-template-columns: 1fr 1fr 1fr;
    gap: 24px; margin-top: 60px;
  }
  .benefit-card {
    border-radius: var(--radius-lg);
    padding: 40px 32px; position: relative; overflow: hidden;
  }
  .benefit-card.card-dark {
    background: #111111; color: var(--white);
  }
  .benefit-card.card-dark .benefit-desc { color: rgba(255,255,255,0.55); }
  .benefit-card.card-accent {
    background: var(--accent);
  }
  .benefit-card.card-light {
    background: var(--gray-100); border: 1px solid var(--gray-200);
  }
  .benefit-pct {
    font-family: 'Lexend', sans-serif; font-size: 3.5rem; font-weight: 800;
    line-height: 1; margin-bottom: 12px;
  }
  .card-dark .benefit-pct { color: var(--accent); }
  .card-accent .benefit-pct { color: var(--white); }
  .card-light .benefit-pct { color: var(--navy); }
  .benefit-title {
    font-size: 1.15rem; font-weight: 700; margin-bottom: 10px;
  }
  .card-dark .benefit-title { color: var(--white); }
  .card-accent .benefit-title { color: var(--white); }
  .card-light .benefit-title { color: var(--navy); }
  .benefit-desc { font-size: 0.88rem; line-height: 1.7; }
  .card-dark .benefit-desc { color: rgba(255,255,255,0.55); }
  .card-accent .benefit-desc { color: rgba(255,255,255,0.8); }
  .card-light .benefit-desc { color: var(--text-muted); }
  .benefit-bg-num {
    position: absolute; bottom: -20px; right: 16px;
    font-family: 'Lexend', sans-serif; font-size: 7rem; font-weight: 800;
    opacity: 0.05; line-height: 1; pointer-events: none;
    color: var(--white);
  }

  /* ── TESTIMONIALS ── */
  .testimonials {
    padding: 100px 6%; background: var(--offwhite);
  }

  /* ── EXCEL vs ZALO comparison block ── */
  .compare {
    background: #f7f7f7;
    padding: 74px 6% 86px;
  }
  .compare-inner {
    max-width: 1200px;
    margin: 0 auto;
  }
  .compare-title {
    font-family: 'Lexend', sans-serif;
    font-weight: 800;
    font-size: clamp(1.8rem, 2.6vw, 2.4rem);
    color: var(--navy);
    margin-bottom: 10px;
    line-height: 1.15;
  }
  .compare-sub {
    font-size: 1rem;
    color: rgba(17,17,17,0.55);
    max-width: 720px;
    margin: 0 auto;
  }
  .compare-grid {
    margin-top: 36px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
  .compare-card {
    border-radius: 18px;
    padding: 26px 26px 22px;
    background: #fff;
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
  }
  .compare-card--bad {
    background: rgba(239,68,68,0.06);
    border-color: rgba(239,68,68,0.18);
  }
  .compare-card--good {
    background: rgba(245,166,35,0.08);
    border-color: rgba(245,166,35,0.28);
  }
  .compare-card-title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 800;
    color: var(--navy);
    font-size: 1.02rem;
    margin-bottom: 14px;
    flex-wrap: wrap;
  }
  .compare-card-icon {
    width: 38px;
    height: 38px;
    border-radius: 999px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background: transparent;
  }
  .compare-card-icon--bad {
    border: 1px solid rgba(239,68,68,0.25);
    background: rgba(254,226,226,0.9);
    color: #ef4444;
  }
  .compare-card-icon--good {
    border: 1px solid rgba(245,166,35,0.35);
    background: rgba(253,230,138,0.65);
    color: var(--accent);
  }
  .compare-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  .compare-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    color: rgba(17,17,17,0.65);
    font-size: 0.98rem;
    line-height: 1.45;
  }
  .compare-ico {
    width: 28px;
    height: 28px;
    border-radius: 999px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 2px;
  }
  .compare-ico--bad {
    background: rgba(239,68,68,0.1);
    border: 1px solid rgba(239,68,68,0.18);
    color: #ef4444;
  }
  .compare-ico--good {
    background: rgba(245,166,35,0.14);
    border: 1px solid rgba(245,166,35,0.26);
    color: var(--accent);
  }
  .testi-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 24px; margin-top: 60px; max-width: 1200px; margin-left: auto; margin-right: auto;
  }
  .testi-card {
    background: var(--white); border-radius: var(--radius-lg);
    padding: 32px; border: 1px solid var(--gray-100);
    position: relative;
  }
  .testi-grid--6 { margin-top: 48px; }
  .testi-card--alt {
    padding: 26px 26px 22px;
    border: 1px solid rgba(17,17,17,0.08);
    box-shadow: 0 10px 28px rgba(17,17,17,0.06);
  }
  .testi-quote-mark {
    position: absolute; top: 18px; left: 18px;
    font-family: serif; font-size: 54px; line-height: 1;
    color: rgba(245,166,35,0.35);
    user-select: none;
  }
  .testi-card--alt .testi-text { margin-top: 26px; margin-bottom: 18px; }
  .testi-divider { height: 1px; background: rgba(17,17,17,0.08); margin: 14px 0 16px; }
  .testi-card--alt .testi-avatar { border-radius: 999px; width: 44px; height: 44px; font-size: 0.75rem; font-weight: 800; }
  .testi-card--alt .testi-role { color: rgba(17,17,17,0.55); }
  .testi-quote {
    font-size: 2.5rem; line-height: 1; color: var(--accent);
    font-family: serif; margin-bottom: 16px; opacity: 0.4;
  }
  .testi-text {
    font-size: 0.93rem; line-height: 1.75; color: var(--gray-600);
    margin-bottom: 24px;
  }
  .testi-author { display: flex; align-items: center; gap: 12px; }
  .testi-avatar {
    width: 42px; height: 42px; border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 0.85rem; color: var(--white);
  }
  .testi-name { font-size: 0.88rem; font-weight: 700; color: var(--navy); }
  .testi-role { font-size: 0.75rem; color: var(--gray-400); }
  .stars { color: var(--gold); font-size: 0.75rem; margin-bottom: 12px; }

  /* ── APP ── */
  .app-section {
    padding: 100px 6%;
    background: linear-gradient(135deg, #111111 0%, #1c1c1c 100%);
    position: relative; overflow: hidden;
  }
  .app-section::before {
    content: ''; position: absolute; top: -200px; right: -100px;
    width: 600px; height: 600px; border-radius: 50%;
    background: radial-gradient(circle, rgba(245,166,35,0.18) 0%, transparent 70%);
  }
  .app-inner {
    max-width: 1200px; margin: 0 auto; position: relative; z-index: 1;
    display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center;
  }
  .app-section .section-title { color: var(--white); }
  .app-section .section-sub { color: rgba(255,255,255,0.6); }
  .app-section .section-tag { color: var(--accent); }
  .app-badges { display: flex; gap: 16px; margin-top: 32px; }
  .app-badge {
    display: flex; align-items: center; gap: 10px;
    background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15);
    border-radius: 12px; padding: 12px 20px; transition: all .2s; cursor: pointer;
  }
  .app-badge:hover { background: rgba(255,255,255,0.13); }
  a.app-badge { text-decoration: none; color: inherit; }
  .app-badge-icon svg { width: 24px; height: 24px; color: var(--white); }
  .app-badge-text span { display: block; font-size: 0.65rem; color: rgba(255,255,255,0.5); }
  .app-badge-text strong { font-size: 0.95rem; color: var(--white); font-weight: 700; }
  .phone-mockups {
    display: flex; gap: -20px; justify-content: center; position: relative;
  }
  .phone-frame {
    width: 200px; background: rgba(255,255,255,0.07);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 28px; padding: 12px; overflow: hidden;
  }
  .phone-screen {
    background: #161616; border-radius: 20px;
    height: 380px; padding: 16px; overflow: hidden;
  }
  .phone-notch {
    width: 60px; height: 6px; background: rgba(255,255,255,0.1);
    border-radius: 3px; margin: 0 auto 16px;
  }
  .phone-2 { margin-left: -40px; margin-top: 32px; }
  .phone-stat { 
    background: rgba(255,107,44,0.15); border-radius: 10px; padding: 12px;
    margin-bottom: 10px; border: 1px solid rgba(255,107,44,0.2);
  }
  .phone-stat-lbl { font-size: 0.6rem; color: rgba(255,255,255,0.4); }
  .phone-stat-val { font-family: 'Lexend', sans-serif; font-size: 1.4rem; font-weight: 800; color: var(--white); }
  .phone-rows { display: flex; flex-direction: column; gap: 6px; }
  .phone-row {
    display: flex; align-items: center; gap: 8px; padding: 8px;
    background: rgba(255,255,255,0.04); border-radius: 8px;
  }
  .phone-row-dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
  .phone-row-text { font-size: 0.6rem; color: rgba(255,255,255,0.6); }

  /* ── FAQ ── */
  .faq-section { padding: 100px 6%; background: var(--white); }
  .faq-inner { max-width: 800px; margin: 0 auto; }
  .faq-list { margin-top: 48px; display: flex; flex-direction: column; gap: 0; }
  .faq-item {
    border-bottom: 1px solid var(--gray-100);
  }
  .faq-q {
    width: 100%; text-align: left; background: none; border: none;
    padding: 22px 0; display: flex; justify-content: space-between; align-items: center;
    cursor: pointer; font-size: 1rem; font-weight: 600; color: var(--navy);
    transition: color .2s;
  }
  .faq-q:hover { color: var(--accent); }
  .faq-icon {
    width: 28px; height: 28px; border-radius: 50%;
    background: var(--gray-100); display: flex; align-items: center; justify-content: center;
    flex-shrink: 0; transition: all .25s;
  }
  .faq-icon svg { width: 14px; height: 14px; }
  .faq-item.open .faq-icon { background: var(--accent); transform: rotate(45deg); }
  .faq-item.open .faq-icon svg { color: var(--white); }
  .faq-a {
    font-size: 0.93rem; color: var(--text-muted); line-height: 1.75;
    padding: 0 0 20px; display: none;
  }
  .faq-item.open .faq-a { display: block; }

  /* ── CTA ── */
  .cta {
    padding: 100px 6%; background: var(--accent);
    text-align: center; position: relative; overflow: hidden;
  }
  .cta::before {
    content: ''; position: absolute; top: -100px; left: -100px;
    width: 400px; height: 400px; border-radius: 50%;
    background: rgba(255,255,255,0.08);
  }
  .cta::after {
    content: ''; position: absolute; bottom: -80px; right: -80px;
    width: 300px; height: 300px; border-radius: 50%;
    background: rgba(0,0,0,0.06);
  }
  .cta-inner { position: relative; z-index: 1; max-width: 700px; margin: 0 auto; }
  .cta h2 {
    font-family: 'Lexend', sans-serif; font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800; color: var(--white); margin-bottom: 20px;
    line-height: 1.15; letter-spacing: -0.02em;
  }
  .cta p { font-size: 1.05rem; color: rgba(255,255,255,0.8); margin-bottom: 40px; line-height: 1.7; }
  .cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
  .btn-cta-white {
    padding: 15px 36px; background: var(--white); border: none;
    border-radius: var(--radius-pill); font-size: 1rem; font-weight: 700;
    color: #111; cursor: pointer; transition: all .25s;
    text-decoration: none; display: inline-block;
  }
  .btn-cta-white:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(0,0,0,0.15); }
  .btn-cta-outline {
    padding: 14px 34px; background: transparent;
    border: 2px solid rgba(255,255,255,0.5); border-radius: var(--radius-pill);
    font-size: 1rem; font-weight: 600; color: var(--white); cursor: pointer;
    transition: all .25s; text-decoration: none; display: inline-block;
  }
  .btn-cta-outline:hover { border-color: var(--white); }

  /* ── FOOTER ── */
  .xehub-site-footer {
    background: #0e0e0e; padding: 70px 6% 40px;
  }
  .footer-top {
    display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px; margin-bottom: 60px;
    max-width: 1200px; margin-left: auto; margin-right: auto;
  }
  .footer-brand { }
  .footer-logo {
    font-family: 'Lexend', sans-serif; font-weight: 800; font-size: 1.5rem;
    color: var(--white);
  }
  .footer-logo span { color: var(--accent); }
  .footer-desc {
    font-size: 0.88rem; color: rgba(255,255,255,0.45); margin-top: 14px;
    line-height: 1.75; max-width: 280px;
  }
  .footer-socials { display: flex; gap: 10px; margin-top: 24px; }
  .social-btn {
    width: 36px; height: 36px; border-radius: 8px;
    background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.1);
    display: flex; align-items: center; justify-content: center; cursor: pointer;
    transition: all .2s;
  }
  .social-btn:hover { background: var(--accent); border-color: var(--accent); }
  .social-btn svg { width: 16px; height: 16px; color: rgba(255,255,255,0.6); }
  .social-btn:hover svg { color: var(--white); }
  .footer-col h4 { font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: rgba(255,255,255,0.35); margin-bottom: 20px; }
  .footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
  .footer-col a { font-size: 0.88rem; color: rgba(255,255,255,0.55); text-decoration: none; transition: color .2s; }
  .footer-col a:hover { color: var(--white); }
  .footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.07); padding-top: 28px;
    display: flex; justify-content: space-between; align-items: center;
    max-width: 1200px; margin: 0 auto;
  }
  .footer-copy { font-size: 0.8rem; color: rgba(255,255,255,0.3); }
  .footer-contact { font-size: 0.8rem; color: rgba(255,255,255,0.4); display: flex; gap: 24px; }
  .footer-contact a { color: rgba(255,255,255,0.55); text-decoration: none; }
  .footer-contact a:hover { color: var(--white); }

  /* max-width centering */
  .section-head.center { text-align: center; }
  .section-head.center .section-sub { margin: 16px auto 0; }

  /* Scroll animations */
  .fade-up {
    opacity: 0; transform: translateY(30px);
    transition: opacity .6s ease, transform .6s ease;
  }
  .fade-up.visible { opacity: 1; transform: translateY(0); }

  .nav-logo img { height: 44px; width: auto; display: block; }

  @media (max-width: 1024px) {
    .hero-grid, .how-grid, .app-inner { grid-template-columns: 1fr; gap: 48px; }
    .features-grid, .benefits-grid, .testi-grid { grid-template-columns: 1fr; }
    .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
    .nav-links { display: none; }
    .phone-2 { margin-left: 0; margin-top: 16px; }
    .phone-mockups { flex-direction: column; align-items: center; }
    .compare-grid { grid-template-columns: 1fr; }
  }

  @media (max-width: 640px) {
    .hero { padding: 88px 1rem 3rem; min-height: auto; }
    .features, .how, .benefits, .testimonials, .app-section, .faq-section, .cta { padding: 64px 1rem; }
    .hero-stats { flex-direction: column; gap: 20px; }
    .footer-top { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
    .footer-contact { flex-direction: column; gap: 8px; }
    .dash-metrics { grid-template-columns: 1fr; }
  }

  /* Zalo floating chat widget */
  .zalo-chat-widget {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 50;
  }

  .zalo-chat-widget__btn {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 999px;
    background: #0068ff;
    color: #fff;
    box-shadow: 0 8px 24px rgba(0, 104, 255, 0.45);
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
  }

  .zalo-chat-widget__btn:hover {
    transform: scale(1.08);
    background: #0050cc;
  }

  .zalo-chat-widget__icon {
    width: 1.75rem;
    height: 1.75rem;
  }

  .zalo-chat-widget__badge {
    position: absolute;
    top: -0.25rem;
    right: -0.25rem;
    min-width: 1.25rem;
    height: 1.25rem;
    border-radius: 999px;
    background: #ef4444;
    color: #fff;
    font-size: 0.625rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid #fff;
  }

  .zalo-chat-widget__tooltip {
    position: absolute;
    right: 0;
    bottom: calc(100% + 0.65rem);
    padding: 0.4rem 0.75rem;
    border-radius: 0.5rem;
    background: #111827;
    color: #fff;
    font-size: 0.8125rem;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
  }

  .zalo-chat-widget__btn:hover + .zalo-chat-widget__tooltip {
    opacity: 1;
  }