:root {
  --green-950: #06201a;
  --green-900: #0b2e23;
  --green-800: #0f3d2f;
  --green-700: #17614a;
  --green-100: #e7f0ea;
  --yellow: #ffc400;
  --yellow-600: #d9a400;
  --yellow-100: #fff4cc;
  --ink: #111a16;
  --muted: #56655e;
  --line: #e2e6e1;
  --paper: #f6f5ef;
  --on-dark: #cfdcd6;
  --radius: 14px;
  --shadow: 0 20px 50px rgba(7, 35, 26, .16);
  --slats: repeating-linear-gradient(180deg, rgba(255,255,255,.045) 0 2px, transparent 2px 26px);
  --hazard: repeating-linear-gradient(-45deg, var(--yellow) 0 16px, var(--green-950) 16px 32px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: #fff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
figure { margin: 0; }
h1, h2, h3, h4 { margin: 0; line-height: 1.2; letter-spacing: -.01em; }
h1, h2 { text-wrap: balance; }
.container { width: min(1160px, calc(100% - 32px)); margin: 0 auto; }
.icon { width: 1.25em; height: 1.25em; flex: none; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.hazard { height: 12px; background: var(--hazard); }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 50px; padding: 0 22px; border: 2px solid transparent; border-radius: 10px; font-size: 16px; font-weight: 700; transition: transform .15s ease, background-color .15s ease, border-color .15s ease; }
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(1px); }
.btn-lg { min-height: 58px; padding: 0 26px; font-size: 18px; }
.btn-yellow { background: var(--yellow); color: var(--ink); box-shadow: 0 4px 0 var(--yellow-600); }
.btn-yellow:hover { background: #ffd033; }
.btn-ghost { border-color: rgba(255,255,255,.5); color: #fff; }
.btn-ghost:hover { border-color: #fff; background: rgba(255,255,255,.08); }
.btn-dark { background: var(--green-900); color: #fff; }
.btn-dark:hover { background: var(--green-800); }

/* Header */
.site-header { position: sticky; top: 0; z-index: 30; background: #fff; border-bottom: 1px solid var(--line); }
.header-inner { min-height: 70px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-mark { width: 44px; height: 44px; border-radius: 10px; display: grid; place-items: center; background: var(--green-900); color: var(--yellow); font-size: 17px; font-weight: 800; }
.brand-text strong { display: block; font-size: 17px; font-weight: 800; line-height: 1.25; }
.brand-text small { display: block; color: var(--muted); font-size: 13px; font-weight: 500; }
.header-actions { display: flex; align-items: center; gap: 4px; }
.header-link { display: inline-flex; align-items: center; gap: 6px; padding: 8px 12px; border-radius: 8px; font-weight: 600; color: var(--green-800); }
.header-link:hover { background: var(--green-100); }
.header-call { display: inline-flex; align-items: center; gap: 8px; margin-left: 8px; padding: 10px 16px; border-radius: 10px; background: var(--yellow); font-weight: 800; }

/* Hero */
.hero { color: #fff; background-color: var(--green-900); background-image: var(--slats), radial-gradient(800px 480px at 85% 30%, rgba(255,196,0,.13), transparent 65%); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: 64px; align-items: center; padding: 76px 0 92px; }
.hero-tag { display: inline-flex; align-items: center; gap: 10px; margin: 0 0 22px; padding: 7px 14px; border: 1px solid rgba(255,255,255,.14); border-radius: 999px; background: rgba(255,255,255,.07); color: #e3ece8; font-size: 14px; font-weight: 600; }
.hero-tag::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--yellow); box-shadow: 0 0 0 4px rgba(255,196,0,.22); }
.hero h1 { margin-bottom: 20px; font-size: clamp(40px, 5.4vw, 64px); font-weight: 800; line-height: 1.1; }
.hero h1 span { color: var(--yellow); }
.hero-lead { max-width: 560px; margin: 0 0 32px; color: var(--on-dark); font-size: 18px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 30px; }
.hero-checks { display: flex; flex-wrap: wrap; gap: 10px 24px; margin: 0; padding: 0; list-style: none; color: #e7efeb; font-weight: 600; }
.hero-checks li { display: inline-flex; align-items: center; gap: 8px; }
.hero-checks .icon { color: var(--yellow); }
.hero-media { position: relative; }
.hero-frame { padding: 10px; border-radius: 10px; background: #fff; box-shadow: 0 30px 60px rgba(0,0,0,.4); transform: rotate(1.5deg); }
.hero-frame img { width: 100%; height: auto; border-radius: 4px; }
.hero-badge { position: absolute; left: -22px; bottom: -26px; width: 116px; height: 116px; border: 3px solid var(--green-900); border-radius: 50%; display: grid; place-content: center; background: var(--yellow); color: var(--ink); text-align: center; line-height: 1.05; transform: rotate(-10deg); box-shadow: 0 12px 30px rgba(0,0,0,.3); }
.hero-badge small { display: block; font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; }
.hero-badge strong { display: block; font-size: 34px; font-weight: 800; }

/* Trust strip */
.trust { background: var(--paper); border-bottom: 1px solid var(--line); }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.trust-item { display: flex; align-items: center; gap: 14px; padding: 26px 20px; }
.trust-item + .trust-item { border-left: 1px solid var(--line); }
.trust-icon { width: 48px; height: 48px; flex: none; border-radius: 12px; display: grid; place-items: center; background: var(--green-900); color: var(--yellow); }
.trust-icon .icon { width: 24px; height: 24px; }
.trust-item strong { display: block; font-size: 16px; font-weight: 700; line-height: 1.3; }
.trust-item div span { display: block; color: var(--muted); font-size: 14px; line-height: 1.4; }

/* Sections */
.section { padding: 88px 0; }
.section-paper { background: var(--paper); }
.section-dark { color: #fff; background-color: var(--green-900); background-image: var(--slats); }
.section-head { max-width: 720px; margin-bottom: 40px; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; margin: 0 0 14px; color: var(--green-700); font-size: 13px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 28px; height: 4px; border-radius: 2px; background: var(--yellow); }
.eyebrow-light { color: var(--yellow); }
h2 { margin-bottom: 16px; font-size: clamp(30px, 3.6vw, 44px); font-weight: 800; }
.section-copy { margin: 0; color: var(--muted); font-size: 18px; }
.section-dark .section-copy { color: var(--on-dark); }

/* Services */
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.service-card { position: relative; padding: 30px 28px 28px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; transition: border-color .15s ease, box-shadow .15s ease, transform .15s ease; }
.service-card::before { content: ""; position: absolute; top: 0; left: 28px; width: 40px; height: 4px; border-radius: 0 0 3px 3px; background: var(--yellow); }
.service-card:hover { border-color: var(--green-800); box-shadow: 0 14px 30px rgba(7,35,26,.08); transform: translateY(-3px); }
.service-icon { width: 52px; height: 52px; margin-bottom: 18px; border-radius: 12px; display: grid; place-items: center; background: var(--yellow-100); color: var(--green-900); }
.service-icon .icon { width: 26px; height: 26px; }
.service-card h3 { margin-bottom: 8px; font-size: 20px; font-weight: 700; }
.service-card p { margin: 0; color: var(--muted); }
.service-cta { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-top: 28px; padding: 22px 26px; border-radius: var(--radius); background: var(--green-100); }
.service-cta p { margin: 0; color: var(--green-900); font-size: 17px; font-weight: 600; }

/* Process */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin: 0; padding: 0; list-style: none; }
.steps li { position: relative; padding: 28px 24px; border: 1px solid rgba(255,255,255,.12); border-radius: var(--radius); background: rgba(255,255,255,.05); }
.steps li:not(:last-child)::after { content: ""; position: absolute; top: 50px; right: -21px; width: 22px; height: 2px; background: repeating-linear-gradient(90deg, var(--yellow) 0 4px, transparent 4px 8px); }
.step-no { display: block; margin-bottom: 18px; color: var(--yellow); font-size: 44px; font-weight: 800; line-height: 1; }
.steps h3 { margin-bottom: 8px; font-size: 19px; font-weight: 700; }
.steps p { margin: 0; color: var(--on-dark); }

/* Workshop */
.workshop-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.workshop-photos { position: relative; display: grid; grid-template-columns: 1.3fr .7fr; gap: 14px; }
.workshop-photos figure { min-height: 400px; overflow: hidden; border-radius: var(--radius); background: #dfe5e0; }
.workshop-photos img { width: 100%; height: 100%; object-fit: cover; }
.workshop-badge { position: absolute; left: -16px; bottom: 28px; padding: 14px 20px; border-radius: 12px; background: var(--yellow); box-shadow: var(--shadow); line-height: 1.25; }
.workshop-badge strong { display: block; font-size: 18px; font-weight: 800; }
.workshop-badge span { font-size: 14px; font-weight: 600; }
.product-list { display: grid; gap: 12px; margin: 28px 0 0; padding: 0; list-style: none; }
.product-list li { display: flex; align-items: flex-start; gap: 12px; font-weight: 600; }
.check { width: 24px; height: 24px; flex: none; margin-top: 1px; border-radius: 50%; display: grid; place-items: center; background: var(--yellow); color: var(--ink); }
.check .icon { width: 14px; height: 14px; stroke-width: 3; }

/* Gallery */
.photo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.photo-card { position: relative; overflow: hidden; border-radius: var(--radius); background: #dfe5e0; }
.photo-card img { width: 100%; height: 300px; object-fit: cover; transition: transform .4s ease; }
.photo-card:hover img { transform: scale(1.04); }
.photo-card figcaption { position: absolute; left: 12px; bottom: 12px; padding: 6px 12px; border-radius: 8px; background: rgba(11,46,35,.9); color: #fff; font-size: 14px; font-weight: 600; }
.photo-wide { grid-column: span 2; }
.machine-card img { object-position: center 20%; }

/* Area & contact */
.split-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: start; }
.area-list { display: flex; flex-wrap: wrap; gap: 10px; margin: 26px 0 0; padding: 0; list-style: none; }
.area-list li { display: inline-flex; align-items: center; gap: 6px; padding: 10px 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--paper); font-weight: 600; }
.area-list .icon { width: 18px; height: 18px; color: var(--green-700); }
.contact-card { padding: 30px; border-radius: 16px; color: #fff; background: var(--green-900); box-shadow: var(--shadow); }
.contact-card h3 { margin-bottom: 6px; font-size: 24px; font-weight: 800; }
.contact-card > p { margin: 0 0 18px; color: var(--on-dark); }
.contact-row { display: flex; align-items: center; gap: 14px; padding: 14px 0; border-top: 1px solid rgba(255,255,255,.12); }
.contact-row .ci { width: 44px; height: 44px; flex: none; border-radius: 10px; display: grid; place-items: center; background: var(--yellow); color: var(--ink); }
.contact-row small { display: block; color: #a9bdb4; font-size: 13px; }
.contact-row strong { display: block; font-size: 20px; font-weight: 800; }
.contact-row address { font-style: normal; color: #e3ece8; }
.contact-links { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 12px; }
.contact-links .btn { min-height: 46px; padding: 0 12px; font-size: 15px; white-space: nowrap; }

/* CTA */
.cta { color: #fff; background-color: var(--green-950); background-image: var(--slats); }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; padding: 72px 0; }
.cta h2 { margin-bottom: 10px; }
.cta p { margin: 0; color: var(--on-dark); }
.cta-actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* Footer */
.site-footer { padding: 56px 0 28px; color: #c3d1cb; background: #04160f; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; }
.footer-brand .brand { margin-bottom: 14px; color: #fff; }
.footer-brand .brand-text small { color: #93a89f; }
.footer-brand p { margin: 0 0 6px; }
.site-footer h4 { margin-bottom: 12px; color: #fff; font-size: 14px; letter-spacing: .1em; text-transform: uppercase; }
.footer-list { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
.footer-list a:hover { color: var(--yellow); }
.footer-bottom { margin-top: 40px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.1); color: #82988e; font-size: 14px; }

.mobile-bar { display: none; }

@media (max-width: 980px) {
  .hero-grid, .workshop-grid, .split-grid { grid-template-columns: 1fr; }
  .hero-grid { gap: 48px; padding: 56px 0 72px; }
  .hero-media { max-width: 620px; }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-item:nth-child(3) { border-left: 0; }
  .trust-item:nth-child(n+3) { border-top: 1px solid var(--line); }
  .service-grid, .steps, .photo-grid { grid-template-columns: repeat(2, 1fr); }
  .steps li::after { display: none; }
  .workshop-badge { left: 12px; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  .site-header { position: static; }
  .header-inner { min-height: 62px; }
  .header-link, .brand-text small { display: none; }
  .brand-mark { width: 40px; height: 40px; }
  .brand { gap: 10px; }
  .brand-text strong { font-size: 16px; }
  .brand-text strong, .header-call { white-space: nowrap; }
  .header-call { gap: 6px; margin-left: 0; padding: 8px 10px; font-size: 14px; }
  .hero-grid { gap: 40px; padding: 40px 0 56px; }
  .hero h1 { font-size: 38px; }
  .hero-lead { font-size: 16.5px; }
  .hero-actions .btn { width: 100%; }
  .hero-badge { left: -6px; bottom: -22px; width: 96px; height: 96px; }
  .hero-badge strong { font-size: 28px; }
  .trust-item { flex-direction: column; align-items: flex-start; gap: 10px; padding: 20px 14px; }
  .trust-icon { width: 42px; height: 42px; }
  .section { padding: 60px 0; }
  .service-grid, .steps, .photo-grid { grid-template-columns: 1fr; gap: 12px; }
  .service-card { display: grid; grid-template-columns: 44px 1fr; gap: 2px 14px; padding: 18px; }
  .service-card::before { left: 18px; }
  .service-icon { grid-row: span 2; width: 44px; height: 44px; margin: 0; }
  .service-icon .icon { width: 22px; height: 22px; }
  .service-card h3 { margin-bottom: 2px; font-size: 18px; }
  .steps li { display: grid; grid-template-columns: 52px 1fr; gap: 2px 12px; padding: 18px; }
  .step-no { grid-row: span 2; margin: 0; font-size: 34px; }
  .steps h3 { margin-bottom: 2px; font-size: 18px; }
  .photo-wide { grid-column: auto; }
  .photo-card img { height: 240px; }
  .service-cta { flex-direction: column; align-items: flex-start; }
  .service-cta .btn { width: 100%; }
  .workshop-photos figure { min-height: 260px; }
  .cta-inner { padding: 56px 0; }
  .cta-actions, .cta-actions .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .site-footer { padding-bottom: 104px; }
  .mobile-bar { position: fixed; left: 0; right: 0; bottom: 0; z-index: 40; display: grid; grid-template-columns: 1.4fr 1fr; gap: 8px; padding: 8px 8px calc(8px + env(safe-area-inset-bottom)); border-top: 1px solid var(--line); background: #fff; box-shadow: 0 -8px 30px rgba(7,35,26,.14); }
  .mobile-bar a { min-height: 52px; border-radius: 10px; display: flex; align-items: center; justify-content: center; gap: 8px; font-size: 16px; font-weight: 800; }
  .mobile-bar .mb-call { background: var(--yellow); color: var(--ink); }
  .mobile-bar .mb-zalo { background: var(--green-900); color: #fff; }
}