:root {
    --green: #0F3D2E;
    --green-700: #123C2F;
    --green-deep: #0B2C21;
    --lime: #C7E86B;
    --lime-bright: #D6F36A;
    --ivory: #F7F4EA;
    --ivory-2: #F1EDE0;
    --sand: #E8DDC8;
    --charcoal: #1F2A24;
    --ink-70: rgba(31, 42, 36, 0.70);
    --ink-55: rgba(31, 42, 36, 0.55);
    --ink-40: rgba(31, 42, 36, 0.40);
    --line: rgba(31, 42, 36, 0.12);
    --line-soft: rgba(31, 42, 36, 0.08);
    --line-strong: rgba(31, 42, 36, 0.20);
    --on-green-70: rgba(247, 244, 234, 0.66);
    --on-green-40: rgba(247, 244, 234, 0.40);
    --on-green-line: rgba(247, 244, 234, 0.16);

    --head: 'Plus Jakarta Sans', system-ui, sans-serif;
    --body: 'Manrope', system-ui, sans-serif;

    --maxw: 1180px;
    --pad: clamp(20px, 5vw, 56px);
    --sec: clamp(72px, 9vw, 120px);
  }

  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; scroll-padding-top: 80px; }

  body {
    font-family: var(--body);
    background: var(--ivory);
    color: var(--charcoal);
    font-size: 16.5px;
    line-height: 1.68;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
  }

  h1, h2, h3, h4 {
    font-family: var(--head);
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.1;
    color: var(--charcoal);
    text-wrap: balance;
  }

  a { color: inherit; text-decoration: none; }
  svg { display: block; }

  .wrap {
    max-width: var(--maxw);
    margin: 0 auto;
    padding-left: var(--pad);
    padding-right: var(--pad);
  }

  /* kicker / labels */
  .kicker {
    font-family: var(--head);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ink-40);
  }
  .num-tag {
    font-family: var(--head);
    font-weight: 600;
    font-size: 12px;
    letter-spacing: 0.12em;
    color: var(--green);
  }

  /* ---------- Buttons ---------- */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    font-family: var(--body);
    font-weight: 600;
    font-size: 14.5px;
    line-height: 1;
    padding: 14px 22px;
    border-radius: 7px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: background .2s, color .2s, border-color .2s;
    white-space: nowrap;
  }
  .btn svg { width: 15px; height: 15px; }
  .btn-primary { background: var(--green); color: var(--ivory); }
  .btn-primary:hover { background: var(--green-deep); }
  .btn-outline { background: transparent; color: var(--charcoal); border-color: var(--line-strong); }
  .btn-outline:hover { border-color: var(--green); color: var(--green); }
  .btn-sm { padding: 11px 17px; font-size: 13.5px; }

  .link-arrow {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    font-family: var(--body);
    font-weight: 600;
    font-size: 14.5px;
    color: var(--green);
    border-bottom: 1px solid transparent;
    padding-bottom: 2px;
    transition: border-color .2s, gap .2s;
  }
  .link-arrow svg { width: 15px; height: 15px; }
  .link-arrow:hover { border-color: var(--green); gap: 13px; }

  /* ---------- Header ---------- */
  header.site {
    position: sticky;
    top: 0;
    z-index: 60;
    background: var(--ivory);
    border-bottom: 1px solid transparent;
    transition: border-color .3s, background .3s;
  }
  header.site.scrolled {
    background: rgba(247, 244, 234, 0.88);
    backdrop-filter: saturate(180%) blur(12px);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
    border-bottom-color: var(--line);
  }
  .nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
  }
  .brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--head);
    font-weight: 700;
    font-size: 18px;
    letter-spacing: -0.01em;
    color: var(--charcoal);
  }
  .brand-mark {
    width: 27px; height: 27px;
    flex: none;
    color: var(--green);
  }
  .nav-links {
    display: flex;
    align-items: center;
    gap: 34px;
    list-style: none;
  }
  .nav-links a {
    font-size: 14.5px;
    font-weight: 500;
    color: var(--ink-70);
    transition: color .2s;
    white-space: nowrap;
  }
  .nav-links a:hover { color: var(--charcoal); }
  .nav-right { display: flex; align-items: center; gap: 14px; }

  .menu-toggle {
    display: none;
    background: none;
    border: 1px solid var(--line-strong);
    border-radius: 7px;
    width: 42px; height: 42px;
    cursor: pointer;
    align-items: center; justify-content: center;
  }
  .menu-toggle span { display: block; width: 17px; height: 1.8px; background: var(--charcoal); position: relative; transition: .25s; }
  .menu-toggle span::before, .menu-toggle span::after { content: ""; position: absolute; left: 0; width: 17px; height: 1.8px; background: var(--charcoal); transition: .25s; }
  .menu-toggle span::before { top: -5.5px; }
  .menu-toggle span::after { top: 5.5px; }
  body.menu-open .menu-toggle span { background: transparent; }
  body.menu-open .menu-toggle span::before { top: 0; transform: rotate(45deg); }
  body.menu-open .menu-toggle span::after { top: 0; transform: rotate(-45deg); }

  .mobile-menu {
    position: fixed;
    inset: 72px 0 0 0;
    background: var(--ivory);
    z-index: 55;
    padding: 28px var(--pad);
    transform: translateY(-10px);
    opacity: 0; pointer-events: none; visibility: hidden;
    transition: opacity .28s ease, transform .28s ease, visibility 0s linear .28s;
    display: flex; flex-direction: column; gap: 2px;
  }
  body.menu-open .mobile-menu { opacity: 1; transform: none; pointer-events: auto; visibility: visible; transition: opacity .28s ease, transform .28s ease, visibility 0s linear 0s; }
  .mobile-menu a {
    font-family: var(--head);
    font-weight: 600;
    font-size: 22px;
    padding: 16px 0;
    border-bottom: 1px solid var(--line-soft);
  }
  .mobile-menu .btn { margin-top: 26px; }

  /* ---------- Hero ---------- */
  .hero { padding-top: clamp(56px, 8vw, 96px); padding-bottom: var(--sec); }
  .hero-grid {
    display: grid;
    grid-template-columns: 1.08fr 0.92fr;
    gap: clamp(40px, 5vw, 76px);
    align-items: center;
  }
  .hero h1 {
    font-size: clamp(34px, 4.8vw, 58px);
    font-weight: 600;
    line-height: 1.08;
    margin-top: 26px;
    max-width: 14ch;
  }
  .hero h1 em { font-style: normal; color: var(--green); }
  .hero .sub {
    font-size: clamp(15.5px, 1.3vw, 18px);
    color: var(--ink-70);
    max-width: 46ch;
    margin-top: 26px;
  }
  .hero-cta { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 26px; margin-top: 40px; }

  .hero-facts {
    display: flex;
    gap: 0;
    margin-top: 56px;
    border-top: 1px solid var(--line);
  }
  .hero-facts .fact {
    padding: 24px 28px 0 0;
    margin-right: 28px;
    border-right: 1px solid var(--line);
    padding-right: 28px;
  }
  .hero-facts .fact:last-child { border-right: 0; margin-right: 0; }
  .hero-facts .fv { font-family: var(--head); font-weight: 600; font-size: 26px; color: var(--charcoal); letter-spacing: -0.01em; }
  .hero-facts .fl { font-size: 13px; color: var(--ink-55); margin-top: 6px; max-width: 16ch; line-height: 1.45; }

  /* ---------- Hero register panel ---------- */
  .register {
    background: var(--green);
    border-radius: 12px;
    padding: 30px 30px 12px;
    color: var(--ivory);
    position: relative;
    overflow: hidden;
  }
  .register .rgrid {
    position: absolute; inset: 0;
    background-image: linear-gradient(var(--on-green-line) 1px, transparent 1px), linear-gradient(90deg, var(--on-green-line) 1px, transparent 1px);
    background-size: 44px 44px;
    opacity: 0.35;
    mask-image: linear-gradient(180deg, #000 0%, transparent 75%);
    -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 75%);
    pointer-events: none;
  }
  .register .rhead {
    position: relative;
    display: flex; align-items: baseline; justify-content: space-between;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--on-green-line);
    margin-bottom: 4px;
  }
  .register .rhead .rt {
    font-family: var(--head); font-size: 12px; font-weight: 600;
    letter-spacing: 0.16em; text-transform: uppercase; color: rgba(214,243,106,.85);
  }
  .register .rhead .rc { font-family: var(--head); font-weight: 600; font-size: 13px; color: var(--on-green-70); }
  .register .row {
    position: relative;
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 12px;
    padding: 15px 0;
    border-bottom: 1px solid var(--on-green-line);
  }
  .register .row:last-child { border-bottom: 0; }
  .register .rname { display: flex; align-items: center; gap: 12px; font-family: var(--head); font-weight: 600; font-size: 15.5px; color: var(--ivory); }
  .register .rdot { width: 7px; height: 7px; border-radius: 50%; flex: none; }
  .dot-live { background: var(--lime-bright); }
  .dot-dev { background: var(--sand); }
  .dot-dest { background: rgba(247,244,234,.85); }
  .dot-future { background: transparent; border: 1px solid var(--on-green-40); }
  .dot-niche { background: var(--lime); opacity: .55; }
  .register .rstatus { font-size: 12.5px; color: var(--on-green-70); white-space: nowrap; }

  /* ---------- Section scaffold ---------- */
  section { padding-top: var(--sec); padding-bottom: var(--sec); }
  .sec-head {
    display: grid;
    grid-template-columns: 0.32fr 1fr;
    gap: clamp(24px, 4vw, 56px);
    padding-top: 30px;
    border-top: 1px solid var(--line);
  }
  .sec-head .sec-side { display: flex; flex-direction: column; gap: 10px; }
  .sec-head .sec-no { font-family: var(--head); font-weight: 600; font-size: 13px; letter-spacing: 0.1em; color: var(--green); }
  .sec-head .sec-label { font-size: 12px; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-40); }
  .sec-head h2 { font-size: clamp(26px, 3.2vw, 40px); max-width: 18ch; }
  .sec-head p { color: var(--ink-70); margin-top: 20px; font-size: clamp(15.5px, 1.2vw, 17.5px); max-width: 58ch; }

  /* ---------- Capability cards ---------- */
  .cap-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border: 1px solid var(--line);
    border-radius: 12px;
    overflow: hidden;
    margin-top: 56px;
    background: var(--white, #fff);
  }
  .cap {
    background: #fff;
    padding: 38px 32px 40px;
    border-right: 1px solid var(--line);
    transition: background .2s;
  }
  .cap:last-child { border-right: 0; }
  .cap:hover { background: var(--ivory-2); }
  .cap .cnum { font-family: var(--head); font-weight: 600; font-size: 12px; letter-spacing: 0.1em; color: var(--green); }
  .cap .cicon {
    width: 44px; height: 44px;
    border: 1px solid var(--line);
    border-radius: 9px;
    display: flex; align-items: center; justify-content: center;
    color: var(--green);
    margin: 22px 0 22px;
  }
  .cap .cicon svg { width: 21px; height: 21px; }
  .cap h3 { font-size: 19px; margin-bottom: 11px; }
  .cap p { color: var(--ink-70); font-size: 15px; }

  /* ---------- Ecosystem (brand cards) ---------- */
  .brands { background: #fff; }
  .brand-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    margin-top: 56px;
    border-top: 1px solid var(--line);
    border-left: 1px solid var(--line);
  }
  .bcard {
    border-right: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    padding: 30px 30px 28px;
    background: #fff;
    display: flex;
    flex-direction: column;
    min-height: 210px;
    transition: background .2s;
  }
  .bcard:hover { background: var(--ivory); }
  .bcard .btop { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
  .bcard .bmark {
    width: 38px; height: 38px; border-radius: 8px; flex: none;
    background: var(--green); color: var(--lime);
    display: flex; align-items: center; justify-content: center;
    font-family: var(--head); font-weight: 700; font-size: 16px;
  }
  .bstatus { display: inline-flex; align-items: center; gap: 7px; font-size: 12.5px; font-weight: 600; color: var(--ink-55); white-space: nowrap; }
  .bstatus .sd { width: 7px; height: 7px; border-radius: 50%; }
  .sd.live { background: #4f9d3a; }
  .sd.dev { background: #c9a24b; }
  .sd.dest { background: var(--green); }
  .sd.future { background: transparent; border: 1px solid var(--line-strong); }
  .sd.niche { background: var(--green); opacity: .45; }
  .bcard h3 { font-size: 19px; margin-top: 24px; }
  .bcard p { color: var(--ink-70); font-size: 14.5px; margin-top: 9px; flex: 1; }
  .bcard .dom {
    margin-top: 20px;
    font-size: 13px; font-weight: 600; color: var(--green);
    display: inline-flex; align-items: center; gap: 7px;
  }
  .bcard .dom svg { width: 13px; height: 13px; opacity: .6; transition: transform .2s; }
  .bcard:hover .dom svg { transform: translate(2px,-2px); }

  /* ---------- Operating model (dark) ---------- */
  .model { background: var(--green); color: var(--ivory); position: relative; overflow: hidden; }
  .model .mgrid {
    position: absolute; inset: 0;
    background-image: linear-gradient(var(--on-green-line) 1px, transparent 1px), linear-gradient(90deg, var(--on-green-line) 1px, transparent 1px);
    background-size: 60px 60px; opacity: 0.4; pointer-events: none;
  }
  .model .wrap { position: relative; }
  .model .sec-head { border-top-color: var(--on-green-line); }
  .model .sec-head .sec-no { color: rgba(214,243,106,.9); }
  .model .sec-head .sec-label { color: var(--on-green-40); }
  .model .sec-head h2 { color: var(--ivory); }
  .model .sec-head p { color: var(--on-green-70); }
  .steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    margin-top: 60px;
    border-top: 1px solid var(--on-green-line);
  }
  .step {
    padding: 30px 24px 0 0;
    margin-right: 0;
    border-right: 1px solid var(--on-green-line);
    padding-left: 24px;
  }
  .step:first-child { padding-left: 0; }
  .step:last-child { border-right: 0; padding-right: 0; }
  .step .sno {
    font-family: var(--head); font-weight: 600; font-size: 13px;
    color: rgba(214,243,106,.9); letter-spacing: 0.08em;
    margin-bottom: 26px;
    display: flex; align-items: center; gap: 10px;
  }
  .step .sno::after { content: ""; flex: 1; height: 1px; background: var(--on-green-line); }
  .step h4 { color: var(--ivory); font-size: 18px; line-height: 1.22; }
  .step p { color: var(--on-green-70); font-size: 14px; margin-top: 12px; }

  /* ---------- Partner + form ---------- */
  .partner-grid {
    display: grid;
    grid-template-columns: 1fr 1.02fr;
    gap: clamp(40px, 6vw, 84px);
    align-items: start;
    padding-top: 30px;
    border-top: 1px solid var(--line);
  }
  .partner-copy .kicker { margin-bottom: 16px; }
  .partner-copy h2 { font-size: clamp(26px, 3.2vw, 40px); max-width: 16ch; }
  .partner-copy p { color: var(--ink-70); margin-top: 22px; font-size: 16px; max-width: 46ch; }
  .partner-list { list-style: none; margin-top: 30px; display: flex; flex-direction: column; }
  .partner-list li { display: flex; gap: 16px; align-items: flex-start; font-size: 15px; padding: 16px 0; border-top: 1px solid var(--line-soft); }
  .partner-list li:first-child { border-top: 0; }
  .partner-list .tick { color: var(--green); margin-top: 3px; flex: none; }
  .partner-list .tick svg { width: 16px; height: 16px; }

  .form-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: clamp(26px, 3.2vw, 40px);
  }
  .form-card h3 { font-size: 20px; margin-bottom: 6px; }
  .form-card .fnote { color: var(--ink-55); font-size: 14px; margin-bottom: 26px; }
  .field { margin-bottom: 18px; }
  .field.row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
  label.flabel { display: block; font-size: 12.5px; font-weight: 600; color: var(--charcoal); margin-bottom: 8px; }
  .input, .select, .textarea {
    width: 100%;
    font-family: var(--body);
    font-size: 15px; color: var(--charcoal);
    background: var(--ivory);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 13px 14px;
    transition: border-color .2s, background .2s, box-shadow .2s;
  }
  .input::placeholder, .textarea::placeholder { color: var(--ink-40); }
  .input:focus, .select:focus, .textarea:focus {
    outline: none; border-color: var(--green); background: #fff;
    box-shadow: 0 0 0 3px rgba(15,61,46,.07);
  }
  .textarea { resize: vertical; min-height: 92px; }
  .select { appearance: none; -webkit-appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%231F2A24' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 36px; }
  .form-card .btn { width: 100%; margin-top: 6px; }
  .form-success { display: none; text-align: left; padding: 8px 0 14px; }
  .form-success .sicon { width: 46px; height: 46px; border-radius: 9px; background: var(--green); color: var(--lime); display: flex; align-items: center; justify-content: center; margin-bottom: 18px; }
  .form-success h3 { margin-bottom: 8px; }
  .form-success p { color: var(--ink-70); font-size: 15px; }
  body.sent .form-fields { display: none; }
  body.sent .form-success { display: block; }

  /* ---------- Footer ---------- */
  footer.site {
    background: var(--green-deep);
    color: var(--on-green-70);
    padding-top: clamp(60px, 7vw, 90px);
    padding-bottom: 34px;
  }
  .foot-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 52px;
    border-bottom: 1px solid var(--on-green-line);
  }
  footer .brand { color: var(--ivory); }
  footer .brand-mark { color: var(--ivory); }
  .foot-about { color: var(--on-green-70); font-size: 14.5px; margin-top: 20px; max-width: 40ch; }
  .foot-col h5 { font-family: var(--head); font-size: 12px; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; color: rgba(214,243,106,.85); margin-bottom: 20px; }
  .foot-col ul { list-style: none; display: flex; flex-direction: column; gap: 13px; }
  .foot-col a { font-size: 14.5px; color: var(--on-green-70); transition: color .2s; }
  .foot-col a:hover { color: var(--lime); }
  .foot-bottom {
    display: flex; justify-content: space-between; align-items: center;
    padding-top: 26px; gap: 16px; flex-wrap: wrap;
    font-size: 13px; color: var(--on-green-40);
  }

  /* ---------- Responsive ---------- */
  @media (max-width: 940px) {
    .hero-grid { grid-template-columns: 1fr; }
    .register { order: -1; }
    .cap-grid { grid-template-columns: 1fr; }
    .cap { border-right: 0; border-bottom: 1px solid var(--line); }
    .cap:last-child { border-bottom: 0; }
    .brand-grid { grid-template-columns: repeat(2, 1fr); }
    .steps { grid-template-columns: repeat(2, 1fr); }
    .step { border-bottom: 1px solid var(--on-green-line); padding-bottom: 30px; margin-bottom: 0; }
    .step:nth-child(odd) { padding-left: 0; }
    .step:nth-child(even) { border-right: 0; padding-right: 0; }
    .step:nth-child(1), .step:nth-child(2) { border-bottom: 1px solid var(--on-green-line); }
    .partner-grid { grid-template-columns: 1fr; }
    .sec-head { grid-template-columns: 1fr; gap: 18px; }
    .sec-head .sec-side { flex-direction: row; gap: 16px; align-items: center; }
    .foot-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  }
  @media (max-width: 680px) {
    .nav-links, .nav-right .btn { display: none; }
    .menu-toggle { display: flex; }
    .brand-grid { grid-template-columns: 1fr; }
    .field.row { grid-template-columns: 1fr; }
    .steps { grid-template-columns: 1fr; }
    .step { border-right: 0 !important; padding-left: 0 !important; padding-right: 0 !important; }
    .hero-facts { flex-wrap: wrap; gap: 4px 0; }
    .hero-facts .fact { border-right: 0; }
    .foot-grid { grid-template-columns: 1fr; gap: 38px; }
  }

  /* ============================================================
     localstay.vn v2 — bo sung (7 brand, mo hinh van hanh, a11y, motion)
     ============================================================ */

  /* a11y: focus-visible ring nhat quan cho moi link / nut / field */
  a:focus-visible, .btn:focus-visible, .menu-toggle:focus-visible,
  .input:focus-visible, .select:focus-visible, .textarea:focus-visible,
  .dom:focus-visible, .link-arrow:focus-visible, .crow:focus-visible {
    outline: 2px solid var(--green);
    outline-offset: 3px;
    border-radius: 5px;
  }

  /* nav links: gach chan editorial chay tu trai */
  .nav-links a { position: relative; }
  .nav-links a::after {
    content: ""; position: absolute; left: 0; bottom: -5px;
    width: 0; height: 1.5px; background: var(--green);
    transition: width .2s ease;
  }
  .nav-links a:hover::after { width: 100%; }

  /* so lieu canh cot khi count-up */
  .hero-facts .fv, .register .rc { font-variant-numeric: tabular-nums; }

  /* hero register: hover tung dong */
  .register .row { border-radius: 7px; transition: background .2s; }
  .register .row:hover { background: rgba(247,244,234,.05); }
  .register .rdot { transition: transform .2s; }
  .register .row:hover .rdot { transform: scale(1.25); }

  /* brand card: duong ke lime "rut" duoi ten khi hover */
  .bcard h3 { position: relative; padding-bottom: 12px; }
  .bcard h3::after {
    content: ""; position: absolute; left: 0; bottom: 0;
    width: 0; height: 2px; background: var(--lime);
    transition: width .22s ease;
  }
  .bcard:hover h3::after { width: 28px; }

  /* card thu 8 "Diem den tiep theo" — ghost / dashed */
  .bcard.next { background: var(--ivory); border-right-style: dashed; border-bottom-style: dashed; border-color: var(--line-strong); }
  .bcard.next .bmark { font-size: 24px; line-height: 1; }
  .bcard.next h3 { color: var(--ink-70); }
  .bcard.next p { color: var(--ink-55); }
  .bcard.next:hover { background: var(--ivory-2); }
  .bcard.next .link-arrow { margin-top: 18px; }
  .bcard.next:hover h3::after { width: 0; }

  /* khoi "Lien he truc tiep" duoi partner-list */
  .contact-direct { margin-top: 32px; padding-top: 28px; border-top: 1px solid var(--line); }
  .contact-direct .cdh { font-family: var(--head); font-size: 12px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-40); margin-bottom: 4px; }
  .contact-direct .cdnote { font-size: 13.5px; color: var(--ink-55); margin-bottom: 16px; }
  .contact-direct .crow { display: flex; align-items: center; gap: 14px; padding: 13px 0; border-top: 1px solid var(--line-soft); }
  .contact-direct .crow:first-of-type { border-top: 0; }
  .contact-direct .cicon { width: 40px; height: 40px; flex: none; border: 1px solid var(--line); border-radius: 9px; display: flex; align-items: center; justify-content: center; color: var(--green); transition: border-color .2s, background .2s; }
  .contact-direct .crow:hover .cicon { border-color: var(--green); background: #fff; }
  .contact-direct .cicon svg { width: 18px; height: 18px; }
  .contact-direct .cmeta { display: flex; flex-direction: column; line-height: 1.3; }
  .contact-direct .cl { font-size: 12px; color: var(--ink-55); }
  .contact-direct .cv { font-size: 15.5px; font-weight: 600; color: var(--charcoal); transition: color .2s; }
  .contact-direct .crow:hover .cv { color: var(--green); }

  /* reveal-on-scroll */
  .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
  .reveal.in { opacity: 1; transform: none; }

  /* brand-grid: 4 cot tren desktop (base) -> 8 o = 4+4 khep kin; 2 cot <=940px; 1 cot <=680px */

  /* thong bao loi gui form */
  .form-error { margin-top: 14px; font-size: 13.5px; line-height: 1.5; color: #b4451f; }
  .form-error[hidden] { display: none; }
  .form-error a { color: var(--green); font-weight: 600; border-bottom: 1px solid currentColor; }

  /* reduced motion: tat moi chuyen dong */
  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .reveal { opacity: 1 !important; transform: none !important; }
    *, *::before, *::after { transition: none !important; animation: none !important; }
  }