:root {
    --forest: #174E4F;
    --forest-deep: #0F3536;
    --moss: #3F6650;
    --gold: #BF8B3D;
    --gold-soft: #E4C588;
    --paper: #FFFBEE;
    --paper-deep: #F3E5C3;
    --light-green: #E9EBD8;
    --card: #FEFDF7;
    --ink: #174E4F;
    --ink-soft: #174E4F;
    --line: rgba(34,31,26,0.13);
    --radius: 12px;
    --icon-size-lg: 52px;
    --maxw: 1120px;
    box-sizing: border-box;
    color-scheme: light;
  }
  * { box-sizing: inherit; margin: 0; padding: 0; }

  html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(76px + env(safe-area-inset-top, 0px));
  }
  body {
    font-family: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--paper);
    color: var(--ink);
    line-height: 1.65;
    font-size: 16.5px;
    padding-top: env(safe-area-inset-top, 0px);
    padding-bottom: env(safe-area-inset-bottom, 0px);
    -webkit-font-smoothing: antialiased;
  }
  h1, h2, h3, h4, .display {
    font-family: 'Fraunces', Georgia, serif;
    font-weight: 500;
    line-height: 1.14;
    letter-spacing: -0.01em;
    color: var(--forest-deep);
  }
  a { color: inherit; text-decoration: none; }
  img { max-width: 100%; display: block; }
  p { text-align: justify; text-justify: inter-word; }
  .wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
  section { padding: 92px 0; }
  @media (max-width: 720px) { section { padding: 60px 0; } .wrap { padding: 0 20px; } }

  a:focus-visible, button:focus-visible {
    outline: 2px solid var(--gold);
    outline-offset: 3px;
  }
  @media (prefers-reduced-motion: reduce) {
    * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
  }

  /* ---------- Nav ---------- */
  header.site-nav {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--card);
    backdrop-filter: blur(6px);
    padding-top: env(safe-area-inset-top, 0px);
    border-bottom: 1px solid var(--line);
  }
  .nav-inner {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 16px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
  }
  .nav-name {
    font-family: 'Fraunces', serif;
    font-size: 1.18rem;
    color: var(--forest-deep);
    white-space: nowrap;
    cursor: pointer;
  }
  .nav-links {
    display: flex;
    gap: 26px;
    list-style: none;
    font-size: 0.92rem;
    color: var(--ink-soft);
  }
  .nav-links a { opacity: 0.9; transition: opacity 0.15s ease, color 0.15s ease; cursor: pointer; }
  .nav-links a:hover { opacity: 1; color: var(--gold); }
  .nav-cta {
    background: var(--forest);
    color: var(--paper);
    padding: 10px 18px;
    border-radius: 999px;
    font-size: 0.88rem;
    font-weight: 600;
    white-space: nowrap;
    cursor: pointer;
  }
  @media (max-width: 860px) {
    .nav-links { display: none; }
    .nav-cta { padding: 8px 14px; font-size: 0.82rem; }
  }

  .nav-menu-toggle,
  .mobile-nav-menu {
    display: none;
  }

  @media (max-width: 860px) {
    .nav-cta { display: none; }

    .nav-menu-toggle {
      width: 44px;
      height: 44px;
      padding: 0;
      border: 0;
      background: transparent;
      color: var(--forest);
      display: inline-flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 4px;
      flex: 0 0 44px;
      cursor: pointer;
    }

    .nav-menu-toggle span {
      display: block;
      width: 20px;
      height: 1.5px;
      background: currentColor;
      border-radius: 2px;
    }

    .nav-menu-toggle:focus-visible {
      outline: 2px solid var(--gold);
      outline-offset: 2px;
    }

    .mobile-nav-menu {
      display: none;
      border-top: 1px solid var(--line);
      background: var(--card);
    }

    .mobile-nav-menu.is-open {
      display: block;
    }

    .mobile-nav-menu ul {
      list-style: none;
      padding: 6px 28px 10px;
    }

    .mobile-nav-menu a {
      display: block;
      padding: 10px 0;
      color: var(--ink-soft);
      font-size: 0.92rem;
      line-height: 1.4;
    }

    .mobile-nav-menu a:hover {
      color: var(--gold);
    }

    .mobile-nav-menu a:focus-visible {
      outline-offset: 1px;
    }
  }

  @media (max-width: 720px) {
    .mobile-nav-menu ul {
      padding-left: 20px;
      padding-right: 20px;
    }
  }

  /* ---------- Hero ---------- */
  /* Background images (no text/buttons) live in src/assets/:
     hero-bg.jpg = desktop, hero-bg-mobile.jpg = mobile. The curved bottom edge is part of the image. */
  .hero {
    background: var(--paper) url("./assets/hero-bg.jpg") center bottom / cover no-repeat;
    padding: clamp(64px, 8vw, 112px) 0 clamp(120px, 15vw, 200px);
    min-height: clamp(560px, 46vw, 720px);
    position: relative;
    overflow: hidden;
  }
  /* soft fade into the page colour so no seam shows under the curve */
  .hero::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 28px;
    background: linear-gradient(to bottom, rgba(255,251,238,0), var(--paper));
    pointer-events: none;
  }
  .hero-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 56px; align-items: center; position: relative; z-index: 1; }
  .hero p { text-align: left; }
  @media (max-width: 860px) {
    .hero-grid { grid-template-columns: 1fr; gap: 40px; }
    .hero {
      background-image: url("./assets/hero-bg-mobile.jpg");
      background-position: center bottom;
      min-height: 0;
      padding: 12px 0 min(92vw, 460px);
    }
  }
  .hero-eyebrow { color: var(--gold); font-weight: 600; font-size: 0.95rem; margin-bottom: 18px; }
  .hero h1 { font-size: clamp(2.5rem, 5.6vw, 4.2rem); font-weight: 600; margin-bottom: 10px; }
  .hero h1::after { content: ""; display: block; width: 168px; max-width: 40%; height: 2px; background: var(--gold); margin-top: 16px; }
  /* Hero role + description typography: desktop / tablet (<=860px) / mobile (<=560px) */
  .hero .role { font-family: 'Be Vietnam Pro', sans-serif; font-size: 20px; line-height: 1.4; color: var(--forest); font-weight: 600; margin-bottom: 28px; }
  .hero p.lede { font-size: 17px; line-height: 1.6; font-weight: 400; color: var(--ink-soft); margin-bottom: 34px; }
  @media (max-width: 860px) {
    .hero .role { font-size: 18px; }
    .hero p.lede { font-size: 16px; }
  }
  @media (max-width: 560px) {
    .hero .role { font-size: 16px; margin-bottom: 14px; }
    .hero p.lede { font-size: 15px; margin-bottom: 10px; }
    .hero-actions { gap: 7px; }
    .hero .btn {
      height: 40px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 0 16px;
      font-size: 0.82rem;
      box-sizing: border-box;
    }
    .hero .btn.ghost {
      height: 38px;
      padding: 0 14px;
    }
    p { font-size: 0.95rem; }
    .page#page-detail-quyenloi .benefit-list { grid-template-columns: 1fr; }
  }

  .hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
  }

  .btn { display: inline-block; background: var(--forest); color: var(--paper); padding: 15px 26px; border-radius: 999px; font-weight: 600; font-size: 0.98rem; transition: transform 0.15s ease, background 0.15s ease; cursor: pointer; }
  .btn:hover { background: var(--forest-deep); transform: translateY(-1px); }
  .btn.ghost { background: var(--light-green); border: 1px solid var(--forest); color: var(--forest); }
  .btn.ghost:hover { background: rgba(29,59,46,0.06); }
  /* Hero buttons: pill shape */
  .hero .btn { border-radius: 999px; padding: 15px 32px; }
  .hero .btn.ghost { background: var(--light-green); }
  .hero .btn.ghost:hover { background: rgba(255,251,238,0.92); }

  .readmore { display: inline-block; margin-top: 8px; color: var(--forest); font-weight: 600; font-size: 0.95rem; border-bottom: 1px solid var(--forest); padding-bottom: 2px; cursor: pointer; }
  .readmore::after { content: " →"; }
  .readmore:hover { color: var(--gold); border-color: var(--gold); }
  .readmore-btn { display: inline-block; margin-top: 14px; color: var(--forest); font-weight: 600; font-size: 0.95rem; border: 1px solid var(--forest); border-radius: 999px; padding: 9px 16px; cursor: pointer; transition: background 0.15s ease; }
  .readmore-btn::after { content: " →"; }
  .readmore-btn:hover { background: rgba(29,59,46,0.06); }

  .back-link { display: inline-block; margin-bottom: 30px; color: var(--ink-soft); font-weight: 600; font-size: 0.92rem; cursor: pointer; }

  .back-link:hover { color: var(--gold); }

  .img-placeholder { width: 100%; height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; color: var(--ink-soft); opacity: 0.8; text-align: center; padding: 20px; font-size: 0.86rem; }
  .img-placeholder svg { width: 34px; height: 34px; opacity: 0.7; }

  .placeholder-box { border: 1px dashed var(--line); border-radius: var(--radius); background: rgba(34,31,26,0.03); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; color: var(--ink-soft); text-align: center; padding: 22px 16px; font-size: 0.82rem; min-height: 140px; }
  .placeholder-box svg { width: 26px; height: 26px; opacity: 0.6; }

  /* ---------- Section headings ---------- */
  .section-head { margin-bottom: 44px; }
  .section-head h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); margin-bottom: 14px; }
  .section-head p { color: var(--ink-soft); font-size: 1.04rem; }
  p.kicker { font-size: 0.95rem; color: var(--gold); font-weight: 600; margin-bottom: 10px; }

  /* ---------- About ---------- */
  .about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
  @media (max-width: 860px) { .about-grid { grid-template-columns: 1fr; gap: 36px; } }
  .about-grid p { margin-bottom: 16px; color: var(--ink-soft); }

  /* Editorial image/text flow for the journey page. The image floats right so
     following text can use the full content width once the image ends. */
  .about-flow {
    display: flow-root;
    margin-bottom: 16px;
  }
  .about-flow .image-frame {
    float: right;
    width: 48%;
    aspect-ratio: 4 / 3;
    margin: 0 0 24px 44px;
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--paper-deep);
  }
  .about-flow .section-image {
    width: 100%;
    height: 100%;
    min-height: 0;
    object-fit: cover;
    object-position: center;
  }
  .about-flow--second {
    margin-bottom: 30px;
  }
  .about-flow--second + .kicker {
    clear: both;
  }
  @media (max-width: 860px) {
    .about-flow .image-frame {
      width: 43%;
      margin-left: 32px;
    }
  }
  @media (max-width: 640px) {
    .about-flow .image-frame {
      float: none;
      width: 100%;
      max-width: none;
      aspect-ratio: 16 / 10;
      margin: 0 0 24px;
    }
  }
  .quote-block {
    font-family: 'Fraunces', serif;
    font-style: italic;
    font-size: 1.3rem;
    line-height: 1.6;
    font-weight: 400;
    letter-spacing: 0;
    color: var(--forest);
    border-left: 0;
    padding: 34px 0 28px;
    margin: 28px 0;
    background: none;
}

@media (min-width: 721px) {
  #gioi-thieu .quote-block {
    margin-top: 0;
    padding-top: 10px;
  }
}

@media (min-width: 721px) {
  #page-detail-gioithieu .quote-block {
    margin-top: 0;
    padding-top: 10px;
  }
}

.quote-block::before,
.quote-block::after {
    color: var(--gold);
    font-family: 'Fraunces', Georgia, serif;
    font-size: 1.3rem;
    font-style: normal;
    font-weight: 400;
    line-height: inherit;
    vertical-align: baseline;
    pointer-events: none;
}

.quote-block::before {
    content: "“";
}

.quote-block::after {
    content: "”";
}
  @media (max-width: 720px) {
    #gioi-thieu .quote-block {
      padding-top: 16px;
      margin-top: 16px;
      margin-bottom: 12px;
    }
  }

  .photo-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 26px; }
  @media (max-width: 500px) { .photo-pair { grid-template-columns: 1fr; } }
  .photo-pair .placeholder-box { min-height: 180px; }
  .photo-pair .image-frame { min-height: 180px; border-radius: var(--radius); overflow: hidden; background: var(--paper-deep); }
  .section-image { width: 100%; height: 100%; min-height: 180px; object-fit: cover; object-position: center; }
  @media (max-width: 500px) {
    .photo-pair .image-frame { min-height: 220px; }
    .section-image { min-height: 220px; }
  }

  /* ---------- Benefit / value cards ---------- */
  .benefit-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
  @media (max-width: 860px) { .benefit-list { grid-template-columns: 1fr; } }
  .benefit-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 26px; border-top: 3px solid var(--gold); }
  .benefit-card h3 { font-size: 19px; line-height: 1.65; margin-bottom: 10px; }
  .benefit-card p { color: var(--ink-soft); font-size: 0.95rem; }
  .benefit-card .commit-list li { font-size: 0.95rem; }

  /* ---------- Membership benefit editorial cards ---------- */
  #quyen-loi .benefit-card {
    background: var(--paper);
    border: 0;
    border-radius: var(--radius);
    border-top: 0;
    border-bottom: 1px solid var(--line);
    padding: 30px 26px;
  }

  #quyen-loi .benefit-card-head {
    display: flex;
    align-items: center;
    gap: 14px;
  }

  #quyen-loi .benefit-icon {
    width: 54px;
    height: 54px;
    flex: 0 0 54px;
    border-radius: 50%;
    background: var(--light-green);
    color: #0F5550;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  #quyen-loi .benefit-icon svg {
    width: 27px;
    height: 27px;
    display: block;
    stroke: currentColor;
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

  #quyen-loi .benefit-card h3 {
    font-size: 19px;
    line-height: 1.45;
    font-weight: 500;
    color: var(--forest-deep);
    margin: 0;
  }

  #quyen-loi .benefit-divider {
    display: block;
    width: 42px;
    height: 2px;
    background: var(--gold);
    margin: 17px 0 16px 68px;
  }

  #quyen-loi .benefit-card p {
    margin: 0 0 14px !important;
    color: var(--ink-soft);
    font-size: 0.95rem;
    line-height: 1.65;
  }

  #quyen-loi .benefit-card .readmore {
    justify-self: start;
    margin-top: 2px;
    color: var(--forest);
    font-size: 0.92rem;
    font-weight: 600;
    line-height: 1.5;
  }

  #quyen-loi .benefit-card .readmore:hover {
    color: var(--gold);
    border-color: var(--gold);
  }

  #quyen-loi .benefit-card:nth-child(3) {
    background: var(--paper);
    border-bottom: 0;
  }

  @media (max-width: 480px) {
    #quyen-loi .benefit-card h3 {
      font-size: 18px;
    }
  }

  @media (max-width: 720px) {
    #quyen-loi .benefit-card {
      padding: 24px 20px;
    }

    #quyen-loi .benefit-card-head {
      gap: 12px;
    }

    #quyen-loi .benefit-icon {
      width: 48px;
      height: 48px;
      flex-basis: 48px;
    }

    #quyen-loi .benefit-icon svg {
      width: 24px;
      height: 24px;
    }

    #quyen-loi .benefit-card h3 {
      font-size: 19px;
      line-height: 1.45;
      margin: 0;
    }

    #quyen-loi .benefit-divider {
      margin-left: 60px;
    }

    #quyen-loi .benefit-card p {
      font-size: 0.92rem;
      line-height: 1.6;
    }

    #quyen-loi .benefit-card .readmore {
      justify-self: start;
      margin-top: 2px;
      font-size: 0.9rem;
    }

    #quyen-loi .benefit-card:nth-child(3) {
      background: var(--paper);
    }
  }

  /* ---------- Training programs ---------- */
  .program-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
  .program-card h3 { font-size: 19px; line-height: 1.65; margin-bottom: 8px; }
  .program-card .audience { display: inline-block; font-size: 0.78rem; font-weight: 600; color: var(--gold); background: var(--paper-deep); padding: 4px 10px; border-radius: 999px; }
  .program-card .commit-list li { font-size: 0.95rem; padding: 10px 0 10px 24px; }
  .program-card .commit-list li::before { top: 17px; width: 6px; height: 6px; }

  /* ---------- Who I walk with ---------- */
  .who-list { display: flex; flex-direction: column; gap: 14px; margin: 30px 0 40px; }
  .who-list p { color: var(--ink-soft); border-top: 1px solid var(--line); padding-top: 14px; }
  .who-list p:first-child { border-top: none; padding-top: 0; }
  .who-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 8px; }
  @media (max-width: 860px) { .who-grid { grid-template-columns: 1fr; } }
  .who-card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 26px; display: flex; flex-direction: column; height: 100%; }
  .who-card-head { display: flex; align-items: center; gap: 14px; }
  .who-icon { width: 54px; height: 54px; flex: 0 0 54px; border-radius: 50%; background: var(--light-green); display: flex; align-items: center; justify-content: center; }
  .who-icon svg { width: 27px; height: 27px; display: block; }
  .who-card h3 { font-size: 19px; line-height: 1.45; margin: 0; }
  .who-divider { display: block; width: 42px; height: 2px; background: var(--gold); margin: 17px 0 16px 68px; }
  .who-card p { color: var(--ink-soft); font-size: 0.95rem; line-height: 1.65; text-align: left; }
  @media (max-width: 480px) {
    .who-card { padding: 24px 20px; }
    .who-card-head { gap: 12px; }
    .who-icon { width: 48px; height: 48px; flex-basis: 48px; }
    .who-icon svg { width: 24px; height: 24px; }
    .who-card h3 { font-size: 18px; }
    .who-divider { margin-left: 60px; }
  }

  @media (max-width: 720px) {
    #gioi-thieu .section-head-lock,
    #dong-hanh .section-head-lock,
    #hoc-duoc-gi .section-head-lock,
    #binh-an .section-head-lock,
    #quyen-loi .section-head-lock {
      --mobile-section-head-overhang: 0px;
      padding-bottom: var(--mobile-section-head-overhang);
      margin-bottom: calc(-1 * var(--mobile-section-head-overhang));
      position: relative;
    }

    #gioi-thieu .section-head,
    #dong-hanh .section-head,
    #hoc-duoc-gi .section-head,
    #binh-an .section-head,
    #quyen-loi .section-head {
      position: sticky;
      top: calc(var(--site-nav-height, 0px) + 24px);
      z-index: 4;
      margin-bottom: 44px;
      background: var(--paper);
    }

    #gioi-thieu .section-head::before,
    #dong-hanh .section-head::before,
    #hoc-duoc-gi .section-head::before,
    #binh-an .section-head::before,
    #quyen-loi .section-head::before {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: 100%;
      height: 24px;
      background: inherit;
      pointer-events: none;
    }

    #gioi-thieu .section-head::after,
    #dong-hanh .section-head::after,
    #hoc-duoc-gi .section-head::after,
    #binh-an .section-head::after,
    #quyen-loi .section-head::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      top: 100%;
      height: 44px;
      background: inherit;
      pointer-events: none;
    }

    #dong-hanh .section-head,
    #binh-an .section-head,
    #quyen-loi .section-head {
      background: var(--paper-deep);
    }

    #dong-hanh .who-grid {
      margin-top: 0;
    }

    #lien-he .section-head {
      margin-bottom: 28px;
    }

    #lien-he .start-buttons {
      margin-top: 40px;
    }

    #dong-hanh .who-grid {
      display: block;
    }

    #dong-hanh .who-card {
      position: relative;
      align-self: start;
      margin-bottom: 22px;
    }

    #dong-hanh .who-card:nth-child(1) {
      margin-top: 8px;
    }

    #dong-hanh .who-card:nth-child(3) {
      margin-bottom: 0;
    }

    #dong-hanh .who-card:nth-child(1) {
      z-index: 1;
    }

    #dong-hanh .who-card:nth-child(2) {
      z-index: 2;
    }

    #dong-hanh .who-card:nth-child(3) {
      z-index: 3;
    }

    #hoc-duoc-gi .benefit-list,
    #quyen-loi .benefit-list {
      display: block;
    }

    #hoc-duoc-gi .benefit-card,
    #quyen-loi .benefit-card {
      position: relative;
      align-self: start;
      margin-bottom: 22px;
    }

    #hoc-duoc-gi .benefit-card:nth-child(1),
    #quyen-loi .benefit-card:nth-child(1) {
      margin-top: 8px;
    }

    #hoc-duoc-gi .benefit-card:nth-child(3),
    #quyen-loi .benefit-card:nth-child(3) {
      margin-bottom: 0;
    }

    #hoc-duoc-gi .benefit-card:nth-child(1),
    #quyen-loi .benefit-card:nth-child(1) {
      z-index: 1;
    }

    #hoc-duoc-gi .benefit-card:nth-child(2),
    #quyen-loi .benefit-card:nth-child(2) {
      z-index: 2;
    }

    #hoc-duoc-gi .benefit-card:nth-child(3),
    #quyen-loi .benefit-card:nth-child(3) {
      z-index: 3;
    }
  }

  /* ---------- Products ---------- */
  .product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-bottom: 28px; }
  @media (max-width: 860px) { .product-grid { grid-template-columns: 1fr 1fr; } }
  @media (max-width: 480px) { .product-grid { grid-template-columns: 1fr; } }
  .product-item { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: block; transition: border-color 0.15s ease, transform 0.15s ease; }
  .product-item:hover { border-color: var(--gold); transform: translateY(-2px); }
  .product-item .thumb { aspect-ratio: 4/3; }
  .product-item .thumb.product-image { padding: 0; overflow: hidden; }
  .product-item .thumb.product-image img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
  .product-item .cap { padding: 14px 16px; }
  .product-item .cap h4 { font-size: 19px; line-height: 1.65; margin-bottom: 4px; }
  .product-item .cap p { font-size: 0.95rem; color: var(--ink-soft); margin-bottom: 8px; }
  .product-item .cap .see-more { font-size: 0.78rem; color: var(--gold); font-weight: 600; }

  .disclaimer { font-size: 0.84rem; color: var(--ink-soft); background: var(--paper-deep); border-radius: var(--radius); padding: 16px 20px; margin-bottom: 40px; }

  .commit-list { list-style: none; }
  .commit-list li { padding: 8px 0 8px 28px; position: relative; color: var(--ink-soft); line-height: 1.65; }
  .commit-list li::before { content: ""; position: absolute; left: 0; top: 16px; width: 7px; height: 7px; background: var(--gold); border-radius: 50%; }

  /* ---------- Membership benefits ---------- */
  .fee-visual { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 36px 30px; margin: 30px 0; }
  .tier-head { display: grid; grid-template-columns: 80px 150px 1fr; gap: 10px; padding-bottom: 10px; margin-bottom: 4px; border-bottom: 1px solid var(--line); }
  .tier-head span { font-size: 1.04rem; font-weight: 600; color: var(--ink-soft); text-align: center; white-space: nowrap; }
  .tier-track { display: flex; flex-direction: column; gap: 12px; }
  .tier-row { display: grid; grid-template-columns: 80px 150px minmax(60px,1fr) auto; align-items: center; gap: 10px; font-size: 0.9rem; }
  .tier-row .tname { color: var(--ink-soft); text-align: center; }
  .tier-row .tcount { font-size: 0.92rem; color: var(--ink); font-weight: 500; text-align: center; }
  .tier-row .tbar-track { background: rgba(34,31,26,0.08); border-radius: 3px; height: 10px; overflow: hidden; }
  .tier-row .tbar-fill { background: var(--gold); height: 100%; border-radius: 3px; }
  .tier-row .tpct { text-align: left; font-weight: 600; color: var(--forest); white-space: nowrap; }
  .tier-row.tier-base .tbar-fill { background: var(--ink-soft); opacity: 0.35; }
  .tier-row.tier-total { border-top: 1px solid var(--line); padding-top: 12px; margin-top: 2px; }
  .tier-row.tier-total .tname, .tier-row.tier-total .tcount, .tier-row.tier-total .tpct { color: var(--forest-deep); font-weight: 700; }
  @media (max-width: 560px) {
    .tier-head, .tier-row { grid-template-columns: 56px 100px minmax(46px,1fr) auto; gap: 6px; font-size: 0.8rem; }
    .tier-head span { font-size: 0.78rem; white-space: nowrap; }
    .fee-visual { padding: 26px 18px; }
  }
  .fee-note { font-size: 0.86rem; color: var(--ink-soft); margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line); }

  /* ---------- Start CTA ---------- */
  .start-buttons { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 30px; }

  footer { background: var(--forest-deep); color: rgba(246,242,231,0.6); padding: 40px 0 calc(40px + env(safe-area-inset-bottom, 0px)); font-size: 0.84rem; }
  footer .wrap { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 14px; }
  footer .fname { font-family: 'Fraunces', serif; color: #F6F2E7; font-size: 1.02rem; }

  .alt-section { background: var(--paper-deep); }


  /* ---------- Floating CTA ---------- */
  .floating-cta {
    position: fixed;
    right: max(24px, env(safe-area-inset-right, 0px));
    bottom: max(24px, env(safe-area-inset-bottom, 0px));
    z-index: 100;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
  }
  .floating-cta__button {
    width: 46px;
    height: 46px;
    flex: 0 0 46px;
    border: 0;
    border-radius: 50%;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card);
    color: var(--forest);
    box-shadow: 0 4px 14px rgba(23,78,79,0.14);
    cursor: pointer;
    overflow: hidden;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
  }
  .floating-cta__button:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(23,78,79,0.18);
  }
  .floating-cta__button:active {
    transform: translateY(0);
    box-shadow: 0 3px 10px rgba(23,78,79,0.14);
  }
  .floating-cta__button img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .floating-cta a[aria-label="Zalo"] img {
    width: 140%;
    height: 140%;
  }

  .floating-cta__top {
    background: var(--light-green);
  }
  .floating-cta__top svg {
    width: 20px;
    height: 20px;
    fill: none;
    stroke: #fff;
    stroke-width: 2.2;
    stroke-linecap: round;
    stroke-linejoin: round;
  }
  @media (max-width: 560px) {
    .floating-cta {
      right: max(14px, env(safe-area-inset-right, 0px));
      bottom: max(14px, env(safe-area-inset-bottom, 0px));
      gap: 8px;
    }
    .floating-cta__button {
      width: 40px;
      height: 40px;
      flex-basis: 40px;
    }
    .floating-cta__top svg {
      width: 18px;
      height: 18px;
    }
  }

  .footer-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
    width: 100%;
  }

  .footer-brand {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
  }

  .footer-contact {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 18px;
    flex-wrap: wrap;
  }

  .footer-contact__item {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    min-height: 44px;
    color: rgba(246,242,231,0.78);
    transition: color 0.15s ease;
  }

  .footer-contact__item:hover {
    color: #F6F2E7;
  }

  .footer-contact__icon {
    width: 28px;
    height: 28px;
    flex: 0 0 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-radius: 7px;
    background: #F6F2E7;
  }

  .footer-contact__icon img {
    display: block;
    object-position: center;
    max-width: none;
    max-height: none;
  }

  .footer-contact__icon--facebook img {
    width: 35px;
    height: 35px;
    object-fit: contain;
  }

  .footer-contact__icon--zalo img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    transform: none;
  }

  .footer-contact__icon--phone img {
    width: 28px;
    height: 28px;
    object-fit: contain;
    transform: scale(1.2);
  }

  @media (max-width: 720px) {
    .footer-main {
      align-items: flex-start;
      flex-direction: column;
      gap: 24px;
    }

    .footer-contact {
      justify-content: flex-start;
      gap: 12px 18px;
    }
  }

  @media (max-width: 480px) {
    .footer-contact {
      width: 100%;
      flex-direction: column;
      align-items: flex-start;
    }
  }

  /* ---------- Proof / Stat Bar ---------- */
  .proof-stat-bar {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    background: var(--light-green);
    color: var(--paper);
    padding: 14px 0;
    margin-top: 0;
  }

  .proof-stat-bar__flowers {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
    color: var(--gold);
  }

  .proof-stat-bar__flowers svg {
    position: absolute;
    display: block;
    opacity: 0;
    transform: translate3d(0, 8px, 0) scale(0.82) rotate(0deg);
    transform-origin: center bottom;
  }

  .proof-stat-bar__flower {
    width: 86px;
    height: 86px;
    color: var(--gold);
  }

  .proof-stat-bar__flower--left {
    left: 1.5%;
    top: -22px;
  }

  .proof-stat-bar__flower--left-small {
    left: 14%;
    bottom: -27px;
    width: 62px;
    height: 62px;
    color: var(--gold-soft);
  }

  .proof-stat-bar__flower--right {
    right: 1.5%;
    top: -23px;
    transform-origin: center bottom;
  }

  .proof-stat-bar__flower--right-small {
    right: 14%;
    bottom: -27px;
    width: 62px;
    height: 62px;
    color: var(--gold-soft);
  }

  .proof-stat-bar__petal {
    width: 25px;
    height: 25px;
    color: var(--gold-soft);
  }

  .proof-stat-bar__petal--1 { left: 9%; top: 5px; }
  .proof-stat-bar__petal--2 { left: 20%; bottom: 3px; }
  .proof-stat-bar__petal--3 { left: 27%; top: -1px; }
  .proof-stat-bar__petal--4 { right: 27%; bottom: -2px; }
  .proof-stat-bar__petal--5 { right: 20%; top: 5px; }
  .proof-stat-bar__petal--6 { right: 9%; bottom: 2px; }
  .proof-stat-bar__petal--7 { left: 5%; bottom: -3px; }

  .proof-stat-bar.is-visible .proof-stat-bar__flower {
    animation: proof-botanical-bloom 1.15s cubic-bezier(0.22, 0.8, 0.24, 1) forwards;
  }

  .proof-stat-bar.is-visible .proof-stat-bar__flower--left { animation-delay: 0.42s; }
  .proof-stat-bar.is-visible .proof-stat-bar__flower--left-small { animation-delay: 0.62s; }
  .proof-stat-bar.is-visible .proof-stat-bar__flower--right { animation-delay: 0.5s; }
  .proof-stat-bar.is-visible .proof-stat-bar__flower--right-small { animation-delay: 0.72s; }

  .proof-stat-bar.is-visible .proof-stat-bar__petal {
    animation: proof-petal-drift 2.65s cubic-bezier(0.22, 0.62, 0.28, 1) forwards;
  }

  .proof-stat-bar.is-visible .proof-stat-bar__petal--1 { animation-delay: 0.82s; --petal-x: -22px; --petal-y: 35px; --petal-r: -24deg; }
  .proof-stat-bar.is-visible .proof-stat-bar__petal--2 { animation-delay: 1.02s; --petal-x: 18px; --petal-y: 38px; --petal-r: 31deg; }
  .proof-stat-bar.is-visible .proof-stat-bar__petal--3 { animation-delay: 0.94s; --petal-x: -12px; --petal-y: 29px; --petal-r: -17deg; }
  .proof-stat-bar.is-visible .proof-stat-bar__petal--4 { animation-delay: 1.08s; --petal-x: 15px; --petal-y: 34px; --petal-r: 22deg; }
  .proof-stat-bar.is-visible .proof-stat-bar__petal--5 { animation-delay: 0.9s; --petal-x: 23px; --petal-y: 31px; --petal-r: 27deg; }
  .proof-stat-bar.is-visible .proof-stat-bar__petal--6 { animation-delay: 1.16s; --petal-x: -18px; --petal-y: 39px; --petal-r: -28deg; }
  .proof-stat-bar.is-visible .proof-stat-bar__petal--7 { animation-delay: 1s; --petal-x: -26px; --petal-y: 30px; --petal-r: -34deg; }

  @keyframes proof-botanical-bloom {
    0% {
      opacity: 0;
      transform: translate3d(0, 8px, 0) scale(0.82) rotate(-3deg);
    }
    55% {
      opacity: 0.68;
      transform: translate3d(0, 0, 0) scale(1.03) rotate(1deg);
    }
    100% {
      opacity: 0;
      transform: translate3d(0, -2px, 0) scale(1) rotate(0deg);
    }
  }

  @keyframes proof-petal-drift {
    0% {
      opacity: 0;
      transform: translate3d(0, -2px, 0) rotate(0deg) scale(0.78);
    }
    18% {
      opacity: 0.52;
    }
    100% {
      opacity: 0;
      transform: translate3d(var(--petal-x), var(--petal-y), 0) rotate(var(--petal-r)) scale(0.9);
    }
  }

  .proof-stat-bar__inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: center;
    gap: 64px;
  }

  .proof-stat {
    min-width: 0;
    display: grid;
    grid-template-columns: var(--icon-size-lg) minmax(0, 1fr);
    column-gap: 18px;
    align-items: center;
  }

  .proof-stat__icon {
    width: var(--icon-size-lg);
    height: var(--icon-size-lg);
    color: var(--moss);
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .proof-stat__icon svg {
    width: 100%;
    height: 100%;
    display: block;
    stroke-width: 0.95;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

  .proof-stat--center {
    justify-self: center;
  }

  .proof-stat--center .proof-stat__icon svg {
    width: 39px;
    height: 39px;
    transform: scaleX(1.3);
  }

  .proof-stat__content {
    min-width: 0;
  }

  .proof-stat__number {
    font-family: 'Fraunces', Georgia, serif;
    color: var(--forest-deep);
    font-size: clamp(2rem, 3.2vw, 2.65rem);
    line-height: 1.05;
    font-weight: 700;
    letter-spacing: -0.02em;
    white-space: nowrap;
  }

  .proof-stat__label {
    margin-top: 5px;
    color: var(--forest);
    font-family: 'Be Vietnam Pro', sans-serif;
    font-size: 0.9rem;
    line-height: 1.4;
    font-weight: 400;
    text-align: left;
  }

  .proof-stat__divider {
    width: 1px;
    height: 40px;
    background: rgba(23, 78, 79, 0.18);
  }

  @media (max-width: 900px) {
    .proof-stat-bar {
      padding: 14px 0;
    }

    .proof-stat-bar__inner {
      gap: 32px;
    }

    .proof-stat {
      column-gap: 18px;
    }

    .proof-stat__number {
      font-size: clamp(1.7rem, 4vw, 2.2rem);
    }

    .proof-stat__label {
      font-size: 0.82rem;
    }

    .proof-stat__divider {
      height: 40px;
    }
  }

  @media (max-width: 640px) {
    .proof-stat-bar {
      padding: 14px 0;
    }

    .proof-stat-bar__flowers .proof-stat-bar__flower {
      width: 64px;
      height: 64px;
    }

    .proof-stat-bar__flower--left {
      left: -2%;
      top: -14px;
    }

    .proof-stat-bar__flower--left-small {
      display: none;
    }

    .proof-stat-bar__flower--right {
      right: -2%;
      top: -15px;
    }

    .proof-stat-bar__flower--right-small {
      display: none;
    }

    .proof-stat-bar__petal {
      width: 20px;
      height: 20px;
    }

    .proof-stat-bar__petal--1 { left: 4%; top: 7px; }
    .proof-stat-bar__petal--2 { left: 14%; bottom: 0; }
    .proof-stat-bar__petal--3 { display: none; }
    .proof-stat-bar__petal--4 { display: none; }
    .proof-stat-bar__petal--5 { right: 14%; top: 7px; }
    .proof-stat-bar__petal--6 { right: 4%; bottom: 0; }
    .proof-stat-bar__petal--7 { display: none; }

    .proof-stat-bar.is-visible .proof-stat-bar__petal--1 { --petal-x: -10px; --petal-y: 25px; }
    .proof-stat-bar.is-visible .proof-stat-bar__petal--2 { --petal-x: 9px; --petal-y: 28px; }
    .proof-stat-bar.is-visible .proof-stat-bar__petal--5 { --petal-x: -9px; --petal-y: 26px; }
    .proof-stat-bar.is-visible .proof-stat-bar__petal--6 { --petal-x: 10px; --petal-y: 27px; }

    .proof-stat-bar__inner {
      display: flex;
      flex-direction: column;
      align-items: stretch;
      gap: 20px;
    }

    .proof-stat {
      width: min(100%, 300px);
      margin: 0 auto;
      grid-template-columns: var(--icon-size-lg) minmax(0, 1fr);
      column-gap: 18px;
    }

    .proof-stat--center {
      justify-self: auto;
    }

    .proof-stat__number {
      font-size: 2rem;
    }

    .proof-stat__label {
      margin-top: 5px;
      font-size: 0.88rem;
    }

    .proof-stat__divider {
      display: none;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    .proof-stat-bar__flowers {
      display: none;
    }

    .proof-stat__number {
      animation: none;
    }
  }

  @media (min-width: 721px) {
    #quyen-loi .benefit-card {
      padding-top: 15px;
    }
  }

  /* ---------- Homepage desktop section spacing ---------- */
  @media (min-width: 721px) {
    #gioi-thieu {
      padding-bottom: 48px;
    }

    #dong-hanh {
      padding-top: 66px;
      padding-bottom: 64px;
    }

    #hoc-duoc-gi {
      padding-top: 64px;
      padding-bottom: 64px;
    }

    #binh-an {
      padding-top: 64px;
    }

    #quyen-loi {
      padding-top: 45px !important;
      padding-bottom: 64px;
    }

    #lien-he {
      padding-top: 64px;
    }

    #binh-an .section-head,
    #quyen-loi .section-head,
    #lien-he .section-head {
      margin-bottom: 32px;
    }

    #quyen-loi .benefit-list {
      margin-top: 24px;
    }
  }
  /* ---------- Homepage mobile section spacing ---------- */
  @media (max-width: 720px) {
    #gioi-thieu {
      padding-bottom: 40px;
    }

    #dong-hanh {
      padding-top: 46px;
      padding-bottom: 0;
    }

    #hoc-duoc-gi {
      padding-top: 48px;
      padding-bottom: 48px;
    }

    #binh-an {
      padding-top: 48px;
    }

    #quyen-loi {
      padding-bottom: 48px;
    }

    #lien-he {
      padding-top: 48px;
    }
  }

  @media (max-width: 720px) {
    .btn {
      height: 40px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding-top: 0;
      padding-bottom: 0;
      box-sizing: border-box;
    }

    .btn.ghost {
      height: 38px;
    }

    #lien-he .btn:not(.ghost) {
      height: 42px;
    }
  }