/* ============================================================
   heimatec Asia — static website
   Brand colours sampled from the official heimatec Asia logo:
   teal #009BA4 / grey #636362
   ============================================================ */

:root {
  --teal: #009BA4;
  --teal-dark: #007980;
  --teal-light: #E2F2F3;
  --ink: #3C3C3B;
  --grey: #636362;
  --grey-light: #9B9B9A;
  --bg-light: #F4F5F5;
  --line: #E4E6E7;
  --white: #FFFFFF;
  --shadow: 0 10px 30px rgba(0, 0, 0, .10);
  --radius: 6px;
  --topbar-h: 38px;
  --header-h: 76px;
  --font: "PT Sans", "Segoe UI", Tahoma, Arial, "Microsoft JhengHei", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: var(--teal); text-decoration: none; transition: color .2s; }
a:hover { color: var(--teal-dark); }

h1, h2, h3, h4 { font-weight: 700; line-height: 1.25; color: var(--ink); }

.container { width: min(1180px, 92%); margin: 0 auto; }

/* ---------- skip link ---------- */
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 2000;
  background: var(--teal); color: #fff; padding: 10px 18px;
}
.skip-link:focus { left: 0; color: #fff; }

/* ============================================================
   Top bar
   ============================================================ */
.topbar {
  background: var(--ink);
  color: rgba(255, 255, 255, .85);
  font-size: 13px;
  height: var(--topbar-h);
}
.topbar .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 100%; gap: 16px;
}
.topbar a { color: rgba(255, 255, 255, .85); }
.topbar a:hover { color: #fff; }
.topbar-left { display: flex; align-items: center; gap: 8px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.topbar-right { display: flex; align-items: center; gap: 22px; white-space: nowrap; }
.topbar-right .sep { opacity: .35; }
.topbar .ext::after {
  content: ""; width: 9px; height: 9px; margin-left: 5px; display: inline-block;
  background: currentColor; opacity: .6;
  clip-path: polygon(0 100%, 0 15%, 15% 15%, 15% 5%, 60% 5%, 60% 0, 100% 0, 100% 40%, 95% 40%, 95% 12%, 55% 12%, 55% 17%, 25% 17%, 25% 88%, 60% 88%, 60% 62%, 100% 62%, 60% 100%);
}

/* ============================================================
   Header / navigation
   ============================================================ */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: var(--white);
  box-shadow: 0 2px 14px rgba(0, 0, 0, .08);
}
.header-inner {
  height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.brand { display: flex; align-items: center; flex-shrink: 0; }
.brand img { height: 54px; width: auto; }

.main-nav ul { list-style: none; display: flex; gap: 6px; }
.main-nav a {
  display: block; padding: 12px 16px;
  font-weight: 700; font-size: 15px; text-transform: uppercase;
  letter-spacing: .04em; color: var(--ink);
  border-bottom: 3px solid transparent;
}
.main-nav a:hover { color: var(--teal); }
.main-nav li.active a,
.main-nav a[aria-current="page"] {
  color: var(--teal);
  border-bottom-color: var(--teal);
}

.nav-toggle {
  display: none; background: none; border: 0; cursor: pointer;
  width: 44px; height: 44px; position: relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: ""; position: absolute; left: 10px; width: 24px; height: 3px;
  background: var(--ink); border-radius: 2px; transition: all .25s;
}
.nav-toggle span { top: 20px; }
.nav-toggle span::before { top: -8px; left: 0; }
.nav-toggle span::after { top: 8px; left: 0; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { top: 0; transform: rotate(-45deg); }

/* ============================================================
   Hero slider
   ============================================================ */
.hero { position: relative; overflow: hidden; background: var(--ink); }

.hero-slide {
  position: absolute; inset: 0;
  opacity: 0; transition: opacity .9s ease;
  pointer-events: none;
}
.hero-slide.is-active { opacity: 1; pointer-events: auto; position: relative; }

.hero-slide img.hero-bg {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: center;
}
.hero-slide::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(20, 20, 20, .72) 0%, rgba(20, 20, 20, .38) 46%, rgba(20, 20, 20, .08) 75%);
}
.hero-slide.light-overlay::after {
  background: linear-gradient(90deg, rgba(20, 20, 20, .66) 0%, rgba(20, 20, 20, .34) 50%, rgba(20, 20, 20, .12) 100%);
}

.hero-content {
  position: relative; z-index: 2;
  padding: 92px 0 104px; max-width: 640px; color: #fff;
}
.hero-content .kicker { color: #7fd6da; }
.hero-content h1 {
  color: #fff; font-size: clamp(30px, 4.4vw, 50px);
  margin: 10px 0 18px;
}
.hero-content p { font-size: clamp(16px, 1.6vw, 19px); color: rgba(255, 255, 255, .92); margin-bottom: 28px; max-width: 540px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* slider controls */
.hero-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 5;
  width: 48px; height: 48px; border: 0; cursor: pointer;
  background: rgba(255, 255, 255, .16); color: #fff; border-radius: 50%;
  display: grid; place-items: center; transition: background .2s;
}
.hero-arrow:hover { background: var(--teal); }
.hero-arrow svg { width: 22px; height: 22px; }
.hero-arrow.prev { left: 18px; }
.hero-arrow.next { right: 18px; }

.hero-dots {
  position: absolute; bottom: 22px; left: 0; right: 0; z-index: 5;
  display: flex; justify-content: center; gap: 10px;
}
.hero-dots button {
  width: 12px; height: 12px; border-radius: 50%;
  border: 2px solid #fff; background: transparent; cursor: pointer;
  padding: 0; transition: all .2s;
}
.hero-dots button.is-active { background: var(--teal); border-color: var(--teal); }

/* compact page hero for subpages */
.page-hero {
  position: relative; color: #fff; overflow: hidden;
  background: var(--ink) center / cover no-repeat;
}
.page-hero::before { content: ""; position: absolute; inset: 0; background: rgba(24, 24, 24, .58); }
.page-hero .container { position: relative; z-index: 2; padding: 72px 0 64px; }
.page-hero .kicker { color: #7fd6da; }
.page-hero h1 { color: #fff; font-size: clamp(30px, 3.6vw, 42px); margin-top: 8px; }
.page-hero p { max-width: 700px; color: rgba(255, 255, 255, .9); margin-top: 12px; }

/* ============================================================
   Common building blocks
   ============================================================ */
.kicker {
  display: inline-block; text-transform: uppercase;
  font-weight: 700; font-size: 14px; letter-spacing: .18em;
  color: var(--teal);
}
.section { padding: 78px 0; }
.section.tight { padding: 54px 0; }
.section.alt { background: var(--bg-light); }

.section-head { max-width: 760px; margin-bottom: 42px; }
.section-head h2 { font-size: clamp(26px, 3vw, 36px); margin-top: 10px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head p { color: var(--grey); margin-top: 12px; font-size: 17px; }

.btn {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 13px 26px; border-radius: var(--radius);
  font-weight: 700; font-size: 15px; text-transform: uppercase; letter-spacing: .05em;
  border: 2px solid transparent; cursor: pointer; transition: all .2s;
}
.btn svg { width: 16px; height: 16px; }
.btn-primary { background: var(--teal); color: #fff; }
.btn-primary:hover { background: var(--teal-dark); color: #fff; }
.btn-outline { border-color: #fff; color: #fff; }
.btn-outline:hover { background: #fff; color: var(--ink); }
.btn-ghost { border-color: var(--teal); color: var(--teal); }
.btn-ghost:hover { background: var(--teal); color: #fff; }

/* ---------- cards grid (product range) ---------- */
.cards-grid {
  display: grid; gap: 26px;
  grid-template-columns: repeat(3, 1fr);
}
.card {
  background: var(--white); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform .25s, box-shadow .25s;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.card-media {
  background: var(--white); border-bottom: 1px solid var(--line);
  aspect-ratio: 4 / 3; overflow: hidden; display: grid; place-items: center; padding: 18px;
}
.card-media img { width: 100%; height: 100%; object-fit: contain; transition: transform .35s; }
.card:hover .card-media img { transform: scale(1.05); }
.card-media.cover { padding: 0; }
.card-media.cover img { object-fit: cover; }
.card-body { padding: 22px 24px 24px; display: flex; flex-direction: column; flex: 1; }
.card-body h3 { font-size: 19px; margin-bottom: 10px; }
.card-body p { color: var(--grey); font-size: 15px; flex: 1; }
.learn-more {
  margin-top: 18px; display: inline-flex; align-items: center; gap: 8px;
  font-weight: 700; text-transform: uppercase; font-size: 14px; letter-spacing: .06em;
}
.learn-more svg { width: 15px; height: 15px; transition: transform .2s; }
.learn-more:hover svg { transform: translateX(4px); }
.card .learn-more { color: var(--teal); }
.card .learn-more:hover { color: var(--teal-dark); }
.card-note {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12.5px; color: var(--grey-light); margin-top: 8px;
}

/* ---------- intro / split ---------- */
.split {
  display: grid; grid-template-columns: 1.05fr .95fr;
  gap: 54px; align-items: center;
}
.split.reverse { grid-template-columns: .95fr 1.05fr; }
.split-media img { border-radius: var(--radius); box-shadow: var(--shadow); width: 100%; }
.split-media .stack { display: grid; gap: 18px; }
.split-text h2 { font-size: clamp(26px, 3vw, 34px); margin: 10px 0 16px; }
.split-text p { color: var(--grey); margin-bottom: 14px; }
.split-text .lead { font-size: 18px; color: var(--ink); font-weight: 700; }

.check-list { list-style: none; margin: 18px 0 6px; display: grid; gap: 12px; }
.check-list li { display: flex; gap: 12px; align-items: flex-start; color: var(--grey); }
.check-list svg { width: 20px; height: 20px; color: var(--teal); flex-shrink: 0; margin-top: 3px; }
.check-list strong { color: var(--ink); }

/* ---------- stats band ---------- */
.stats-band { background: var(--ink); color: #fff; }
.stats-band .grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; padding: 46px 0; }
.stat { text-align: center; padding: 0 10px; }
.stat .num { font-size: clamp(26px, 3vw, 38px); font-weight: 700; color: var(--teal); line-height: 1.15; }
.stat .num small { font-size: .55em; }
.stat .lbl { font-size: 14px; color: rgba(255, 255, 255, .85); margin-top: 8px; }

/* ---------- tech chips ---------- */
.tech-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; }
.tech-card {
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px 20px; background: var(--white);
  transition: transform .2s, box-shadow .2s, border-color .2s;
  color: var(--ink); display: flex; flex-direction: column; gap: 10px;
}
.tech-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--teal); color: var(--ink); }
.tech-card svg { width: 30px; height: 30px; color: var(--teal); }
.tech-card h3 { font-size: 16.5px; }
.tech-card span { font-size: 13.5px; color: var(--grey); }

/* ---------- videos ---------- */
.video-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.video-item { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.video-frame { position: relative; aspect-ratio: 16 / 9; background: #000; }
.video-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.video-item .cap { padding: 16px 20px; }
.video-item .cap h3 { font-size: 17px; }
.video-item .cap p { font-size: 14px; color: var(--grey); margin-top: 4px; }

/* ---------- product detail sections ---------- */
.product-section { padding: 60px 0; border-bottom: 1px solid var(--line); }
.product-section:last-of-type { border-bottom: 0; }
.product-section .split { gap: 46px; }
.product-section h2 { font-size: clamp(24px, 2.6vw, 32px); margin: 8px 0 14px; }
.product-section h2 .reg { font-size: .5em; vertical-align: super; color: var(--grey); font-weight: 400; }
.thumb-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 22px; }
.thumb-row figure {
  border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; background: var(--white);
}
.thumb-row img { aspect-ratio: 1 / 1; object-fit: contain; padding: 10px; width: 100%; height: 100%; }
.thumb-row figcaption { font-size: 12.5px; color: var(--grey); text-align: center; padding: 8px 6px 10px; border-top: 1px solid var(--line); }

/* ---------- facts sidebar ---------- */
.facts-card {
  background: var(--bg-light); border-radius: var(--radius);
  padding: 30px 28px; border: 1px solid var(--line);
}
.facts-card h3 { font-size: 17px; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 16px; color: var(--teal); }
.facts-card ul { list-style: none; display: grid; gap: 14px; }
.facts-card li { display: flex; gap: 12px; font-size: 15px; color: var(--grey); }
.facts-card li svg { width: 18px; height: 18px; color: var(--teal); flex-shrink: 0; margin-top: 4px; }
.facts-card li strong { color: var(--ink); }

/* ---------- CTA band ---------- */
.cta-band { background: var(--teal); color: #fff; }
.cta-band .inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 30px; padding: 50px 0; flex-wrap: wrap;
}
.cta-band h2 { color: #fff; font-size: clamp(24px, 3vw, 32px); }
.cta-band p { color: rgba(255, 255, 255, .92); margin-top: 6px; max-width: 640px; }
.cta-band .btn-white { background: #fff; color: var(--teal); }
.cta-band .btn-white:hover { background: var(--ink); color: #fff; }

/* ---------- contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.contact-card {
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 34px 32px; background: var(--white);
  box-shadow: 0 4px 18px rgba(0, 0, 0, .05);
}
.contact-card .tag {
  display: inline-block; background: var(--teal-light); color: var(--teal-dark);
  font-size: 12.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .1em;
  padding: 5px 12px; border-radius: 999px; margin-bottom: 16px;
}
.contact-card h2 { font-size: 23px; margin-bottom: 18px; }
.contact-lines { list-style: none; display: grid; gap: 14px; }
.contact-lines li { display: flex; gap: 13px; align-items: flex-start; color: var(--grey); font-size: 15.5px; }
.contact-lines svg { width: 19px; height: 19px; color: var(--teal); flex-shrink: 0; margin-top: 3px; }
.contact-lines a { color: var(--teal); font-weight: 700; }
.contact-lines .sub { font-size: 13px; color: var(--grey-light); }

.form-card {
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 34px 32px; background: var(--bg-light);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-grid .full { grid-column: 1 / -1; }
.field label { display: block; font-weight: 700; font-size: 14px; margin-bottom: 6px; color: var(--ink); }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; border: 1px solid #cfd3d4;
  border-radius: var(--radius); font: inherit; color: var(--ink); background: #fff;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: 2px solid var(--teal); outline-offset: 1px; border-color: var(--teal);
}
.form-note { font-size: 13.5px; color: var(--grey); margin: 14px 0 0; }

/* ---------- breadcrumb ---------- */
.breadcrumb { font-size: 13.5px; color: rgba(255,255,255,.75); margin-bottom: 10px; }
.breadcrumb a { color: rgba(255,255,255,.85); }
.breadcrumb .sep { margin: 0 7px; opacity: .5; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer { background: #2D2D2C; color: rgba(255, 255, 255, .8); margin-top: 0; }
.footer-main {
  display: grid; grid-template-columns: 1.3fr 1fr 1fr 1.2fr;
  gap: 40px; padding: 62px 0 48px;
}
.site-footer h4 {
  color: #fff; font-size: 15px; text-transform: uppercase;
  letter-spacing: .1em; margin-bottom: 18px;
}
.footer-logo { height: 46px; width: auto; margin-bottom: 18px; }
.site-footer p, .site-footer li { font-size: 14.5px; color: rgba(255, 255, 255, .72); }
.site-footer ul { list-style: none; display: grid; gap: 10px; }
.site-footer ul a { color: rgba(255, 255, 255, .72); }
.site-footer ul a:hover { color: #fff; }
.site-footer .contact-list li { display: flex; gap: 10px; align-items: flex-start; }
.site-footer .contact-list svg { width: 16px; height: 16px; color: var(--teal); flex-shrink: 0; margin-top: 4px; }
.footer-social { display: flex; gap: 12px; margin-top: 18px; }
.footer-social a {
  width: 38px; height: 38px; border-radius: 50%;
  background: rgba(255, 255, 255, .08); display: grid; place-items: center;
  color: rgba(255, 255, 255, .85);
}
.footer-social a:hover { background: var(--teal); color: #fff; }
.footer-social svg { width: 17px; height: 17px; }
.footer-note { font-size: 13px; color: rgba(255, 255, 255, .5); margin-top: 16px; }

.footer-bottom { background: #242423; padding: 18px 0; }
.footer-bottom .container {
  display: flex; justify-content: space-between; align-items: center;
  gap: 14px; flex-wrap: wrap; font-size: 13.5px; color: rgba(255, 255, 255, .55);
}
.footer-bottom a { color: rgba(255, 255, 255, .7); }
.footer-bottom nav { display: flex; gap: 20px; }

/* ---------- back to top ---------- */
.to-top {
  position: fixed; right: 26px; bottom: 26px; z-index: 900;
  width: 46px; height: 46px; border-radius: 50%; border: 0;
  background: var(--teal); color: #fff; cursor: pointer;
  display: grid; place-items: center; opacity: 0; visibility: hidden;
  transform: translateY(12px); transition: all .3s; box-shadow: var(--shadow);
}
.to-top.show { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { background: var(--teal-dark); }
.to-top svg { width: 20px; height: 20px; }

/* ---------- scroll reveal ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1080px) {
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .tech-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-main { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  :root { --header-h: 64px; }
  .brand img { height: 42px; }
  .topbar-left { display: none; }
  .topbar .container { justify-content: center; }

  .nav-toggle { display: block; }
  .main-nav {
    position: fixed; top: 0; right: 0; bottom: 0; z-index: 1100;
    width: min(320px, 84vw); background: var(--white);
    box-shadow: -12px 0 34px rgba(0, 0, 0, .18);
    transform: translateX(105%); transition: transform .3s ease;
    padding: 90px 26px 30px; overflow-y: auto;
  }
  .main-nav.open { transform: none; }
  .main-nav ul { flex-direction: column; gap: 2px; }
  .main-nav a { border-bottom: 0; border-left: 3px solid transparent; padding: 13px 10px; }
  .main-nav li.active a,
  .main-nav a[aria-current="page"] { border-left-color: var(--teal); background: var(--teal-light); }
  .nav-close-zone {
    position: fixed; inset: 0; z-index: 1050; background: rgba(0, 0, 0, .45);
    opacity: 0; visibility: hidden; transition: opacity .3s; border: 0;
  }
  .nav-close-zone.show { opacity: 1; visibility: visible; }

  .hero-content { padding: 70px 0 88px; }
  .split, .split.reverse { grid-template-columns: 1fr; gap: 30px; }
  .video-grid, .contact-grid { grid-template-columns: 1fr; }
  .stats-band .grid { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .cards-grid, .tech-grid { grid-template-columns: 1fr; }
  .section { padding: 56px 0; }
  .thumb-row { grid-template-columns: repeat(2, 1fr); }
  .footer-main { grid-template-columns: 1fr; gap: 30px; padding: 46px 0 36px; }
  .hero-arrow { display: none; }
}