/* AgriTo — landing page (bản xem trước). Một chủ đề sáng; mọi màu lấy từ token ở :root. */
:root {
  --bg: #FFFFFF;
  --tint: #EFF8F2;
  --card: #FFFFFF;
  --ink: #12291F;
  --ink-2: #4A6156;
  --line: #D7E9DD;
  --green: #1E7A4C;
  --green-dk: #135C37;
  --green-lt: #DFF2E6;
  --amber: #E8A91D;
  --teal: #1C6E7D;
  --on-dark: #E8F1E9;
  --on-dark-2: #A9C3B2;
  --r: 14px;
  --shadow: 0 1px 2px rgba(16,35,28,.06), 0 8px 24px -12px rgba(16,35,28,.18);
  --serif: "Source Serif 4", "Iowan Old Style", Georgia, "Times New Roman", serif;
  --sans: "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color-scheme: light;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 16px/1.65 var(--sans); -webkit-font-smoothing: antialiased; }
img, svg { max-width: 100%; display: block; }
a { color: var(--green); }
h1, h2, h3 { margin: 0; line-height: 1.18; text-wrap: balance; }
h1, h2 { font-family: var(--serif); font-weight: 600; letter-spacing: -.01em; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
.mono { font-family: var(--mono); font-weight: 500; letter-spacing: -.01em; }
.wrap { width: min(1160px, 100%); margin-inline: auto; padding-inline: 20px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: #fff; padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 8px; }
:focus-visible { outline: 3px solid var(--amber); outline-offset: 2px; border-radius: 6px; }

/* ---- Nút ---- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 13px 22px; border-radius: 999px; background: var(--green); color: #fff; font: 600 15px/1 var(--sans); text-decoration: none; border: 2px solid var(--green); cursor: pointer; transition: background .15s, transform .15s; }
.btn:hover { background: var(--green-dk); border-color: var(--green-dk); }
.btn:active { transform: translateY(1px); }
.btn-ghost { background: transparent; color: var(--green-dk); border-color: var(--green-dk); }
.btn-ghost:hover { background: var(--green-dk); color: #fff; }
.btn-sm { padding: 10px 18px; font-size: 14px; }

/* ---- Đầu trang ---- */
.top { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.92); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.top-in { display: flex; align-items: center; gap: 28px; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand-name { font: 700 22px/1 var(--sans); letter-spacing: -.02em; }
.brand-name b { color: var(--green); font-weight: 700; }
.nav { display: flex; gap: 22px; margin-left: auto; }
.nav a { color: var(--ink-2); text-decoration: none; font-weight: 500; font-size: 15px; padding: 6px 0; border-bottom: 2px solid transparent; }
.nav a:hover { color: var(--ink); border-color: var(--amber); }
.burger { display: none; margin-left: auto; width: 44px; height: 44px; border: 0; background: transparent; border-radius: 10px; cursor: pointer; padding: 0; }
.burger span { display: block; width: 22px; height: 2px; background: var(--ink); margin: 5px auto; border-radius: 2px; transition: transform .2s, opacity .2s; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---- Hero ---- */
.hero { position: relative; overflow: hidden; background: linear-gradient(180deg, #EAF7EF 0%, #FFFFFF 100%); }
.hero-in { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr); gap: 40px; align-items: center; padding-block: 64px 104px; }
.eyebrow { font: 600 13px/1 var(--sans); letter-spacing: .12em; text-transform: uppercase; color: var(--green); margin-bottom: 16px; }
.hero h1 { font-size: clamp(40px, 5.6vw, 66px); line-height: 1.04; }
.hero h1 em { font-style: italic; color: var(--green); }
.lead { margin-top: 22px; font-size: 18px; color: var(--ink-2); max-width: 54ch; }
.lead b { color: var(--ink); }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.facts { display: grid; grid-template-columns: repeat(3, auto); justify-content: start; gap: 12px 34px; margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--line); }
.facts li { display: flex; flex-direction: column; gap: 2px; max-width: 170px; }
.facts b { font: 700 24px/1.1 var(--serif); color: var(--ink); }
.facts span { font-size: 13px; line-height: 1.4; color: var(--ink-2); }
.hills { position: absolute; left: 0; right: 0; bottom: -1px; width: 100%; height: 96px; }

.hero-right { container-type: inline-size; display: flex; flex-direction: column; align-items: center; gap: 14px; min-width: 0; }
.art-title { font-family: var(--serif); font-weight: 600; font-size: min(19px, 3.2vw); font-size: min(19px, 3.6cqw); line-height: 1.25; text-align: center; color: var(--ink); margin: 0; padding: 0; white-space: nowrap; max-width: 100%; }
.art-title::after { content: ""; display: block; width: 44px; height: 3px; border-radius: 3px; background: var(--amber, #E5A823); margin: 10px auto 0; }
.hero-art { position: relative; min-height: 540px; width: 100%; max-width: 540px; margin-inline: auto; display: flex; justify-content: flex-start; align-items: center; padding-left: 24px; }
.phone { width: 270px; border-radius: 38px; background: #fff; border: 9px solid var(--ink); box-shadow: 0 30px 50px -24px rgba(16,35,28,.5); overflow: hidden; transform: rotate(2deg); }
.phone-bar { height: 22px; display: grid; place-items: center; background: var(--ink); }
.phone-bar span { width: 60px; height: 6px; border-radius: 6px; background: #2E4A3E; }
.phone-body { padding: 16px 16px 18px; display: flex; flex-direction: column; gap: 14px; }
.p-head { display: flex; flex-direction: column; gap: 6px; }
.p-head small { color: var(--ink-2); font-size: 12px; }
.p-head strong { font-size: 18px; }
.pill { align-self: flex-start; font-size: 11.5px; font-weight: 600; padding: 4px 10px; border-radius: 999px; }
.pill-ok { background: var(--green-lt); color: var(--green-dk); }
.p-steps { display: flex; flex-direction: column; gap: 0; counter-reset: ps; }
.p-steps li { counter-increment: ps; position: relative; padding: 7px 0 7px 34px; font-size: 13px; color: var(--ink-2); border-bottom: 1px dashed var(--line); }
.p-steps li::before { content: counter(ps); position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; font: 600 11px/1 var(--sans); background: #EEF2EC; color: var(--ink-2); }
.p-steps li.on { color: var(--ink); font-weight: 500; }
.p-steps li.on::before { content: "✓"; background: var(--green); color: #fff; }
.p-rate { display: flex; justify-content: space-between; align-items: center; font-size: 12.5px; padding: 10px 12px; border-radius: 10px; background: #FBF4E2; }
.p-rate i { font-style: normal; color: #B07A07; letter-spacing: 2px; }
.qr-card { position: absolute; right: 26px; bottom: 34px; width: 140px; padding: 12px; border-radius: var(--r); background: #fff; box-shadow: var(--shadow); transform: rotate(3deg); display: flex; flex-direction: column; gap: 8px; }
.qr-card small { font-size: 11px; line-height: 1.35; color: var(--ink-2); }
.qr { width: 100%; aspect-ratio: 1; }
.chain-card { position: absolute; right: 0; top: 40px; width: 200px; padding: 14px; border-radius: var(--r); background: #fff; border: 1px solid var(--line); color: var(--ink); box-shadow: var(--shadow); transform: rotate(-1.5deg); }
.chain-card small { display: block; font-size: 11.5px; line-height: 1.35; color: var(--ink-2); margin-bottom: 10px; }
.chain-card small em { font-style: normal; opacity: .85; }
.chain li { position: relative; display: flex; flex-direction: column; padding: 0 0 10px 18px; }
.chain li:last-child { padding-bottom: 0; }
.chain li::before { content: ""; position: absolute; left: 3px; top: 6px; width: 8px; height: 8px; border-radius: 50%; background: var(--amber); }
.chain li:not(:last-child)::after { content: ""; position: absolute; left: 6.5px; top: 16px; bottom: -2px; width: 1px; background: #BFDCC9; }
.chain .mono { font-size: 13px; color: var(--green-dk); }
.chain i { font-style: normal; font-size: 11.5px; color: var(--ink-2); }

/* ---- Khối chung ---- */
.sec { padding-block: 88px; }
.sec-tint { background: var(--tint); }
.sec-head { max-width: 760px; margin-bottom: 44px; }
.sec-head h2, .field-copy h2, .contact-copy h2 { font-size: clamp(30px, 3.8vw, 44px); }
.sub { margin-top: 16px; font-size: 17px; color: var(--ink-2); max-width: 62ch; }
.grid { display: grid; gap: 18px; }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 26px; }
.card h3 { font-size: 19px; font-family: var(--sans); font-weight: 600; letter-spacing: -.01em; }
.card p { margin-top: 10px; color: var(--ink-2); font-size: 15.5px; }
.ico { width: 44px; height: 44px; border-radius: 12px; background: var(--green-lt); display: grid; place-items: center; margin-bottom: 18px; }
.ico svg { width: 22px; height: 22px; fill: none; stroke: var(--green-dk); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.pain-answer { background: var(--green-dk); border-color: var(--green-dk); }
.pain-answer h3 { color: var(--amber); }
.pain-answer p { color: var(--on-dark); }
.pain-answer b { color: #fff; }
.note { margin-top: 26px; font-size: 14.5px; color: var(--on-dark-2); max-width: 70ch; }
.note-l { color: var(--ink-2); }

/* ---- Các bước ---- */
.steps { display: grid; grid-template-columns: 300px minmax(0, 1fr); gap: 24px; align-items: start; }
.step-tabs { display: flex; flex-direction: column; gap: 6px; }
.step-tabs button { display: flex; align-items: center; gap: 14px; width: 100%; text-align: left; padding: 13px 16px; border: 1px solid transparent; border-radius: 12px; background: transparent; color: var(--ink-2); font: 500 15.5px/1.3 var(--sans); cursor: pointer; transition: background .15s, color .15s; }
.step-tabs button i { font: 600 13px/1 var(--mono); font-style: normal; color: var(--green); min-width: 24px; }
.step-tabs button:hover { background: rgba(255,255,255,.7); color: var(--ink); }
.step-tabs button.on { background: var(--card); border-color: var(--line); color: var(--ink); font-weight: 600; box-shadow: var(--shadow); }
.step-tabs button.on i { color: var(--amber); }
.step-panels { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 32px; min-height: 320px; }
.panel h3 { font: 600 clamp(24px, 2.6vw, 30px)/1.15 var(--serif); margin-bottom: 22px; }
.panel dl { margin: 0; display: grid; gap: 18px; }
.panel dt { font: 600 12px/1 var(--sans); letter-spacing: .1em; text-transform: uppercase; color: var(--green); margin-bottom: 8px; }
.panel dd { margin: 0; font-size: 16.5px; color: var(--ink); max-width: 62ch; }
.js .panel { display: none; }
.js .panel.on { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 300px); gap: 0 32px; align-items: start; animation: rise .25s ease both; }
.panel h3 { grid-column: 1 / -1; }
.panel dl { grid-column: 1; }
.shot { grid-column: 2; grid-row: 2; margin: 0; }
.shot img { width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 12px; border: 1px solid var(--line); background: var(--tint); }
.shot figcaption { margin-top: 8px; font-size: 12.5px; color: var(--ink-2); }
.panel:not(.on) .shot { display: none; }
@keyframes rise { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.loop { display: flex; gap: 16px; align-items: flex-start; margin-top: 26px; padding: 20px 24px; border-radius: var(--r); background: #FBF4E2; border: 1px solid #F0DFB3; }
.loop svg { flex: none; width: 30px; height: 30px; fill: none; stroke: #9A6A00; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.loop p { color: #5A4310; font-size: 15.5px; }
.loop b { color: #3B2C07; }
.extras { margin-top: 18px; }
.extra h3 { display: flex; align-items: center; gap: 12px; }
.extra h3 i { font: 600 13px/1 var(--mono); font-style: normal; color: var(--amber); background: var(--green-dk); padding: 6px 8px; border-radius: 8px; }

/* ---- Khối tối ---- */
.sec-dark { background: var(--green-dk); color: var(--on-dark); }
.sec-dark .eyebrow { color: var(--amber); }
.sec-dark h2 { color: #fff; }
.sec-dark .sub { color: var(--on-dark-2); }
.card.dk { background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.14); }
.card.dk h3 { color: #fff; }
.card.dk p { color: var(--on-dark-2); }

/* ---- Đối tượng ---- */
.roles { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.roles article { padding: 24px 28px 24px 0; border-bottom: 1px solid var(--line); }
.roles article:nth-child(even) { padding-left: 28px; border-left: 1px solid var(--line); padding-right: 0; }
.roles article:last-child:nth-child(odd) { grid-column: 1 / -1; padding-right: 0; }
.roles h3 { font: 600 18px/1.3 var(--sans); }
.roles p { margin-top: 6px; color: var(--ink-2); font-size: 15.5px; }

/* ---- Nền tảng ---- */
.channels { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.channels article { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 20px; display: flex; flex-direction: column; gap: 4px; }
.channels b { font: 600 18px/1.2 var(--sans); }
.channels span { color: var(--ink-2); font-size: 14.5px; }
.plat { margin-top: 34px; }
.ticks li { position: relative; padding: 0 0 12px 28px; color: var(--ink-2); font-size: 15.5px; }
.ticks li:last-child { padding-bottom: 0; }
.ticks li::before { content: ""; position: absolute; left: 0; top: 6px; width: 16px; height: 16px; border-radius: 50%; background: var(--green-lt) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4.500 8.200l2.300 2.300 4.700-4.800' fill='none' stroke='%231B6A43' stroke-width='1.800' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/16px no-repeat; }
.plat h3 { margin-bottom: 16px; }
.layers { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 34px; border-radius: var(--r); overflow: hidden; border: 1px solid var(--line); }
.layer { padding: 22px 24px; display: flex; flex-direction: column; gap: 6px; background: var(--card); }
.layer b { font: 600 16.5px/1.3 var(--sans); }
.layer span { font-size: 14.5px; color: var(--ink-2); }
.layer.l2 { background: var(--green-lt); }
.layer.l3 { background: var(--card); }
.layer + .layer { border-left: 1px solid var(--line); }

/* ---- Lộ trình ---- */
.road { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 0; position: relative; }
.road li { position: relative; padding: 0 18px 0 0; display: flex; flex-direction: column; gap: 14px; }
.road li::before { content: ""; position: absolute; top: 19px; left: 40px; right: 0; height: 2px; background: repeating-linear-gradient(90deg, var(--green) 0 8px, transparent 8px 14px); }
.road li:last-child::before { display: none; }
.road i { position: relative; z-index: 1; width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center; background: var(--green); color: #fff; font: 600 15px/1 var(--mono); font-style: normal; }
.road h3 { font: 600 17px/1.3 var(--sans); }
.road p { margin-top: 6px; font-size: 14.5px; color: var(--ink-2); }

/* ---- Ứng dụng thực tế ---- */
.sec-field { background: linear-gradient(180deg, var(--tint), #DDE9DA); }
.field-in { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: 48px; align-items: center; }
.field-copy { display: flex; flex-direction: column; gap: 16px; }
.field-copy .eyebrow { margin-bottom: 0; }
.field-copy p { color: var(--ink-2); font-size: 17px; max-width: 58ch; }
.field-copy p b { color: var(--ink); }
.field-list { display: grid; gap: 12px; }
.field-list li { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 18px 22px; display: flex; flex-direction: column; gap: 2px; }
.field-list b { font: 600 24px/1.1 var(--serif); color: var(--green-dk); }
.field-list span { font-size: 14.5px; color: var(--ink-2); }

/* ---- Liên hệ ---- */
.contact { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 48px; align-items: start; }
.contact-copy { display: flex; flex-direction: column; gap: 18px; }
.contact-copy .eyebrow { margin-bottom: 0; }
.contact-copy > p { color: var(--ink-2); font-size: 17px; max-width: 52ch; }
.who { margin: 8px 0 0; display: grid; grid-template-columns: 130px minmax(0, 1fr); gap: 10px 16px; font-size: 15px; padding-top: 20px; border-top: 1px solid var(--line); }
.who dt { color: var(--ink-2); }
.who dd { margin: 0; }
.todo { color: #9A6A00; font-style: italic; }
.form { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 28px; display: flex; flex-direction: column; gap: 6px; box-shadow: var(--shadow); }
.form label { font-size: 14px; font-weight: 600; margin-top: 10px; }
.form input, .form textarea { width: 100%; padding: 12px 14px; border: 1.5px solid var(--line); border-radius: 10px; background: #fff; color: var(--ink); font: 400 16px/1.4 var(--sans); }
.form input:focus, .form textarea:focus { outline: none; border-color: var(--green); box-shadow: 0 0 0 3px var(--green-lt); }
.form textarea { resize: vertical; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form .btn { margin-top: 18px; align-self: flex-start; }
.form-note { font-size: 13px; color: var(--ink-2); margin-top: 8px; }
.form-note.ok { color: var(--green); font-weight: 600; }

/* ---- Chân trang ---- */
.foot { background: var(--tint); color: var(--ink-2); padding-block: 44px; border-top: 1px solid var(--line); }
.foot-in { display: grid; grid-template-columns: minmax(0, .6fr) minmax(0, 1.4fr); gap: 20px 48px; }
.brand-foot, .brand-foot .brand-name { color: var(--ink); }
.brand-foot .brand-name b { color: var(--green); }
.foot p { font-size: 14px; }
.foot-in > div p { margin-top: 12px; }
.legal { font-size: 13px; line-height: 1.6; }
.copy { grid-column: 1 / -1; padding-top: 18px; border-top: 1px solid var(--line); font-size: 13px; }

/* ---- Đáp ứng ---- */
@media (max-width: 1040px) {
  .hero-in { grid-template-columns: 1fr; padding-block: 48px 110px; }
  .hero-right { order: 2; }
  .hero-art { min-height: 520px; }
  .g3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps { grid-template-columns: 1fr; }
  .step-tabs { flex-direction: row; overflow-x: auto; padding-bottom: 6px; scroll-snap-type: x proximity; }
  .step-tabs button { width: auto; flex: none; white-space: nowrap; scroll-snap-align: start; border-color: var(--line); background: rgba(255,255,255,.6); }
  .road { grid-template-columns: 1fr; gap: 22px; }
  .road li { flex-direction: row; gap: 16px; padding: 0; }
  .road li::before { display: none; }
  .road i { flex: none; }
  .field-in, .contact { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 860px) {
  .nav { position: absolute; left: 0; right: 0; top: 68px; flex-direction: column; gap: 0; margin: 0; padding: 8px 20px 16px; background: var(--bg); border-bottom: 1px solid var(--line); display: none; }
  .nav.open { display: flex; }
  .nav a { padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 16px; }
  .burger { display: block; }
  .top-cta { display: none; }
  .channels { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .layers { grid-template-columns: 1fr; }
  .layer + .layer { border-left: 0; border-top: 1px solid var(--line); }
  .roles { grid-template-columns: 1fr; }
  .roles article, .roles article:nth-child(even) { padding: 20px 0; border-left: 0; }
}
@media (max-width: 640px) {
  .sec { padding-block: 60px; }
  .g3, .g2 { grid-template-columns: 1fr; }
  .facts { grid-template-columns: 1fr; gap: 14px; }
  .facts li { max-width: none; }
  .hero-art { min-height: 0; flex-direction: column; align-items: center; gap: 18px; padding: 6px 0 10px; max-width: none; }
  .phone { transform: none; }
  .qr-card, .chain-card { position: static; transform: none; width: min(290px, 100%); }
  .qr-card { flex-direction: row; align-items: center; }
  .qr-card .qr-wrap { width: 84px; flex: none; }
  .step-panels { padding: 22px; }
  .row2 { grid-template-columns: 1fr; }
  .who { grid-template-columns: 1fr; gap: 2px; }
  .who dd { margin-bottom: 10px; }
  .foot-in { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* ---- Giao diện thực tế ---- */
.gal { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 24px; align-items: start; }
.gal-tabs { display: flex; flex-direction: column; gap: 6px; }
.gal-tabs button { text-align: left; padding: 13px 16px; border: 1px solid transparent; border-radius: 12px; background: transparent; color: var(--ink-2); font: 500 15.5px/1.3 var(--sans); cursor: pointer; }
.gal-tabs button:hover { background: var(--tint); color: var(--ink); }
.gal-tabs button.on { background: var(--card); border-color: var(--line); color: var(--ink); font-weight: 600; box-shadow: var(--shadow); }
.gal-view figure { margin: 0; display: flex; flex-direction: column; gap: 12px; }
.gal-view figure[hidden] { display: none; }
.gal-view figcaption { font-size: 14.5px; color: var(--ink-2); max-width: 70ch; }
.frame { border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: #fff; box-shadow: var(--shadow); }
.frame-bar { display: flex; align-items: center; gap: 6px; padding: 9px 12px; background: #E3EAE2; border-bottom: 1px solid var(--line); font-size: 12.5px; color: var(--ink-2); }
.frame-bar i { width: 10px; height: 10px; border-radius: 50%; background: #B6C4B8; }
.frame-bar span { margin-left: 10px; }
.frame img { width: 100%; height: auto; display: block; }
.phones { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; padding: 6px 0; background: var(--tint); border-radius: 12px; }
.phone-s { width: min(250px, 44%); border: 7px solid var(--ink); border-radius: 30px; overflow: hidden; background: #fff; box-shadow: var(--shadow); margin: 14px 0; }
.phone-s img { width: 100%; height: auto; display: block; }

/* ---- Gói dịch vụ ---- */
.foot-contact a { color: var(--green-dk); font-weight: 600; }
@media (max-width: 1040px) {
  .js .panel.on { grid-template-columns: 1fr; }
  .shot { grid-column: 1; grid-row: auto; margin-top: 18px; max-width: 420px; }
  .gal { grid-template-columns: 1fr; }
  .gal-tabs { flex-direction: row; overflow-x: auto; padding-bottom: 6px; }
  .gal-tabs button { flex: none; white-space: nowrap; border-color: var(--line); background: rgba(255,255,255,.6); }
}

/* =====================================================================
   CHUYỂN ĐỘNG — mọi hiệu ứng tắt khi người dùng chọn "giảm chuyển động"
   (nội dung luôn hiện đủ; ẩn-rồi-hiện chỉ áp dụng khi có JS + IntersectionObserver)
   ===================================================================== */
@keyframes rise { from { opacity: 0; translate: 0 22px; } to { opacity: 1; translate: 0 0; } }
@keyframes pop { from { opacity: 0; scale: .88; } to { opacity: 1; scale: 1; } }
@keyframes floaty { 0%, 100% { translate: 0 0; } 50% { translate: 0 -9px; } }
@keyframes floaty2 { 0%, 100% { translate: 0 0; } 50% { translate: 0 8px; } }
@keyframes tick { 0% { scale: 0; } 70% { scale: 1.25; } 100% { scale: 1; } }
@keyframes slideIn { from { opacity: 0; translate: -14px 0; } to { opacity: 1; translate: 0 0; } }
@keyframes nodePulse { 0% { box-shadow: 0 0 0 0 rgba(232,169,29,.55); } 100% { box-shadow: 0 0 0 10px rgba(232,169,29,0); } }
@keyframes scanMove { 0%, 100% { top: 6%; } 50% { top: 90%; } }
@keyframes sway1 { from { transform: translateX(-1.5%) scaleX(1.04); } to { transform: translateX(1.5%) scaleX(1.04); } }
@keyframes sway2 { from { transform: translateX(1.2%) scaleX(1.04); } to { transform: translateX(-1.2%) scaleX(1.04); } }
@keyframes spin { to { rotate: 360deg; } }
@keyframes fadeUp { from { opacity: 0; translate: 0 14px; } to { opacity: 1; translate: 0 0; } }
@keyframes drawX { from { transform: scaleX(0); } to { transform: scaleX(1); } }

/* Thanh tiến độ cuộn + đầu trang */
.progress { position: fixed; z-index: 60; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--green), var(--amber)); transform: scaleX(0); transform-origin: 0 50%; }
.top { transition: box-shadow .25s, background .25s; }
.top.scrolled { box-shadow: 0 6px 22px -14px rgba(16,35,28,.3); background: rgba(255,255,255,.97); }
.top-in { transition: height .25s; }
.top.scrolled .top-in { height: 60px; }

/* Nút, liên kết, thẻ */
.brand img { transition: transform .35s cubic-bezier(.3,1.5,.5,1); }
.brand:hover img { transform: rotate(-8deg) scale(1.08); }
.btn { transition: background .2s, border-color .2s, color .2s, transform .2s, box-shadow .2s; }
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 20px -10px rgba(15,61,42,.55); }
.btn:active { transform: translateY(0); box-shadow: none; }
@media (min-width: 861px) {
  .nav a { background: linear-gradient(var(--amber), var(--amber)) 0 100% / 0 2px no-repeat; border-bottom: 0; padding-bottom: 7px; transition: background-size .28s ease, color .2s; }
  .nav a:hover { background-size: 100% 2px; }
}
.card, .roles article, .channels article, .field-list li, .layer { transition: transform .28s cubic-bezier(.2,.7,.2,1), box-shadow .28s, border-color .28s, background .28s; }
.card:hover, .channels article:hover, .field-list li:hover { transform: translateY(-5px); box-shadow: 0 16px 30px -18px rgba(16,35,28,.45); border-color: #B9CDBD; }
.pain .ico { transition: transform .35s cubic-bezier(.3,1.5,.5,1), background .25s; }
.pain:hover .ico { transform: rotate(-8deg) scale(1.12); background: var(--amber); }
.pain:hover .ico svg { stroke: var(--green-dk); }
.roles article:hover { background: rgba(255,255,255,.7); }
.layer:hover { background: #fff; }
.layer.l2:hover { background: #CFE4D2; }
.step-tabs button { transition: background .2s, color .2s, transform .2s, box-shadow .2s; }
.step-tabs button:hover { transform: translateX(4px); }
.gal-tabs button { transition: background .2s, color .2s, transform .2s, box-shadow .2s; }
.gal-tabs button:hover { transform: translateX(4px); }
.frame { transition: transform .4s cubic-bezier(.2,.7,.2,1), box-shadow .4s; }
.frame:hover { transform: translateY(-4px); box-shadow: 0 26px 44px -26px rgba(16,35,28,.55); }
.phone-s { transition: transform .4s cubic-bezier(.2,.7,.2,1); }
.phone-s:hover { transform: translateY(-8px) rotate(-1.5deg); }
.loop svg { animation: spin 14s linear infinite; }
.road i { transition: transform .3s cubic-bezier(.3,1.5,.5,1); }
.road li:hover i { transform: scale(1.18); }

/* Mở đầu trang (chạy khi tải, không phụ thuộc cuộn) */
.hero-copy > * { animation: rise .8s cubic-bezier(.2,.7,.2,1) both; }
.hero-copy .eyebrow { animation-delay: .05s; }
.hero-copy h1 { animation-delay: .15s; }
.hero-copy .lead { animation-delay: .3s; }
.hero-copy .cta-row { animation-delay: .42s; }
.hero-copy .facts { animation-delay: .55s; }
.hero h1 em { background: linear-gradient(var(--amber), var(--amber)) 0 92% / 0 .12em no-repeat; animation: underline 1s .9s ease forwards; }
@keyframes underline { to { background-size: 100% .12em; } }
.phone { animation: pop .9s .25s cubic-bezier(.2,.8,.2,1) both, floaty 7s 1.4s ease-in-out infinite; }
.qr-card { animation: pop .8s .6s cubic-bezier(.2,.8,.2,1) both, floaty2 6s 1.6s ease-in-out infinite; }
.chain-card { animation: pop .8s .8s cubic-bezier(.2,.8,.2,1) both, floaty 8s 1.8s ease-in-out infinite; }
.p-steps li.on::before { animation: tick .45s both; animation-delay: calc(var(--i, 0) * 140ms + 900ms); }
.p-steps li { animation: slideIn .5s both; animation-delay: calc(var(--i, 0) * 90ms + 700ms); }
.chain li { animation: slideIn .55s both; animation-delay: calc(var(--i, 0) * 200ms + 1000ms); }
.chain li::before { animation: nodePulse 2.4s ease-out infinite; animation-delay: calc(var(--i, 0) * 200ms + 1600ms); }
.qr-wrap { position: relative; }
.scan { position: absolute; left: -4%; right: -4%; height: 3px; top: 6%; border-radius: 3px; background: var(--amber); box-shadow: 0 0 12px 2px rgba(232,169,29,.7); animation: scanMove 3.2s ease-in-out infinite; animation-delay: 1.4s; }
.hills path:nth-child(1) { animation: sway1 16s ease-in-out infinite alternate; transform-origin: 50% 100%; }
.hills path:nth-child(2) { animation: sway2 12s ease-in-out infinite alternate; transform-origin: 50% 100%; }

/* Hiện dần khi cuộn tới (JS gắn lớp .rv; không có JS thì mọi thứ hiện sẵn) */
.js .rv { opacity: 0; translate: 0 28px; transition: opacity .75s cubic-bezier(.2,.7,.2,1) var(--d, 0ms), translate .75s cubic-bezier(.2,.7,.2,1) var(--d, 0ms), scale .75s cubic-bezier(.2,.7,.2,1) var(--d, 0ms), transform .28s cubic-bezier(.2,.7,.2,1), box-shadow .28s, border-color .28s, background .28s; }
.js .rv.rv-l { translate: -34px 0; }
.js .rv.rv-r { translate: 34px 0; }
.js .rv.rv-s { translate: 0 0; scale: .95; }
.js .rv.in { opacity: 1; translate: 0 0; scale: 1; }
/* Đường nối lộ trình "vẽ" ra */
.js .road li::before { transform: scaleX(0); transform-origin: 0 50%; }
.js .road li.in::before { animation: drawX .9s .35s ease forwards; }
.js .road li.in i { animation: pop .5s calc(var(--d, 0ms) + 150ms) cubic-bezier(.3,1.5,.5,1) both; }
/* Chuyển tab */
.js .panel.on dd, .js .panel.on dt { animation: fadeUp .5s both; }
.js .panel.on dt:nth-of-type(1) { animation-delay: .05s; } .js .panel.on dd:nth-of-type(1) { animation-delay: .12s; }
.js .panel.on dt:nth-of-type(2) { animation-delay: .2s; } .js .panel.on dd:nth-of-type(2) { animation-delay: .27s; }
.js .panel.on .shot { animation: pop .6s .15s cubic-bezier(.2,.8,.2,1) both; }
.gal-view figure.on { animation: fadeUp .5s both; }

@media (prefers-reduced-motion: reduce) {
  .js .rv { opacity: 1; translate: 0 0; scale: 1; }
  .progress { display: none; }
  .scan { display: none; }
  .js .road li::before { transform: none; }
}

/* ---- Video các bước ---- */
.vid { display: grid; grid-template-columns: minmax(0, 1fr) 250px; gap: 22px; align-items: start; }
.vid-main { display: flex; flex-direction: column; gap: 10px; }
.vid video { width: 100%; aspect-ratio: 16 / 9; display: block; border-radius: 16px; background: var(--deep); box-shadow: 0 30px 60px -32px rgba(16,35,28,.7); }
.vid-hint { font-size: 13.5px; color: var(--ink-2); }
.chapters { display: flex; flex-direction: column; gap: 4px; }
.chapters button { display: flex; align-items: center; gap: 12px; width: 100%; text-align: left; padding: 10px 14px; border: 1px solid transparent; border-radius: 12px; background: transparent; color: var(--ink-2); font: 500 15px/1.3 var(--sans); cursor: pointer; transition: background .2s, color .2s, transform .2s, box-shadow .2s; position: relative; overflow: hidden; }
.chapters button i { font: 600 13px/1 var(--mono); font-style: normal; color: var(--green); min-width: 22px; }
.chapters button:hover { background: rgba(255,255,255,.7); color: var(--ink); transform: translateX(4px); }
.chapters button.on { background: var(--card); border-color: var(--line); color: var(--ink); font-weight: 600; box-shadow: var(--shadow); }
.chapters button.on i { color: var(--amber); }
.chapters button::after { content: ""; position: absolute; left: 0; bottom: 0; height: 3px; width: calc(var(--p, 0) * 100%); background: var(--amber); border-radius: 0 3px 3px 0; }
.steps-detail { margin-top: 26px; border-top: 1px solid var(--line); padding-top: 18px; }
.steps-detail summary { cursor: pointer; font: 600 16px/1.3 var(--sans); color: var(--green-dk); list-style: none; display: inline-flex; align-items: center; gap: 10px; padding: 6px 2px; }
.steps-detail summary::-webkit-details-marker { display: none; }
.steps-detail summary::before { content: ""; width: 10px; height: 10px; border-right: 2.5px solid currentColor; border-bottom: 2.5px solid currentColor; transform: rotate(-45deg); transition: transform .25s; }
.steps-detail[open] summary::before { transform: rotate(45deg); }
.steps-detail .steps { margin-top: 18px; }
@media (max-width: 1040px) {
  .vid { grid-template-columns: 1fr; }
  .chapters { flex-direction: row; overflow-x: auto; padding-bottom: 6px; }
  .chapters button { flex: none; width: auto; white-space: nowrap; border-color: var(--line); background: rgba(255,255,255,.6); }
}

/* ---- Bố cục gọn (17/10): vấn đề 2 cột, câu trả lời, điểm kiểm soát ---- */
.pains .pain { display: flex; gap: 16px; align-items: flex-start; padding: 22px; }
.pains .pain .ico { margin: 0; flex: none; }
.pains .pain p { margin-top: 6px; }
.answer { margin-top: 18px; padding: 18px 22px; border-radius: var(--r); background: var(--green-lt); border: 1px solid #C4E4CF; font-size: 17px; line-height: 1.55; }
.answer b { color: var(--green-dk); }
.guards { list-style: none; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-top: 22px; }
.guards li { background: #fff; border: 1px solid var(--line); border-left: 4px solid var(--green); border-radius: 12px; padding: 16px 18px; display: flex; flex-direction: column; gap: 4px; }
.guards b { font-size: 16px; line-height: 1.35; }
.guards span { font-size: 14.5px; color: var(--ink-2); }
.plat.g3 .card h3 { margin-bottom: 12px; }
@media (max-width: 860px) { .guards { grid-template-columns: 1fr; } }

/* Lưới video: cho phép cột co lại để thanh chương cuộn ngang trong khung trên điện thoại */
.vid > * { min-width: 0; }
/* Phần tử trượt vào từ bên phải (biểu mẫu) không được đẩy trang tràn ngang trước khi hiện */
main { overflow-x: clip; }