/* ============================================================
   Heao Medical — Sports Tape Manufacturer & OEM Factory
   Brand visual: deep charcoal + energetic orange
   ============================================================ */
:root {
  --bg: #14161a;
  --bg-2: #1b1e24;
  --bg-3: #22262e;
  --card: #20242c;
  --line: #31363f;
  --text: #e8eaed;
  --muted: #a2a9b3;
  --accent: #ff7a1a;
  --accent-2: #ffa050;
  --accent-dark: #d95f00;
  --ok: #3ecf8e;
  --radius: 14px;
  --maxw: 1180px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "Segoe UI", "Helvetica Neue", Arial, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 16.5px;
}
img { max-width: 100%; display: block; }
a { color: var(--accent-2); text-decoration: none; }
a:hover { color: var(--accent); }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- Header ---------- */
header.site {
  position: sticky; top: 0; z-index: 100;
  background: rgba(20, 22, 26, .92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.25rem; color: var(--text); letter-spacing: .5px; }
.logo .mark {
  width: 34px; height: 34px; border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  display: grid; place-items: center; color: #fff; font-size: .95rem; font-weight: 900;
}
.logo em { color: var(--accent); font-style: normal; }
.nav-links { display: flex; gap: 26px; list-style: none; }
.nav-links a { color: var(--muted); font-weight: 600; font-size: .95rem; padding: 6px 2px; }
.nav-links a:hover, .nav-links a.active { color: var(--accent); }
.nav-cta {
  background: var(--accent); color: #fff !important; font-weight: 700;
  padding: 10px 20px; border-radius: 8px; font-size: .92rem;
  transition: background .2s;
}
.nav-cta:hover { background: var(--accent-dark); }
.nav-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.6rem; cursor: pointer; }

/* ---------- Hero ---------- */
.hero { padding: 84px 0 70px; background:
  radial-gradient(900px 420px at 85% -10%, rgba(255,122,26,.14), transparent 60%),
  radial-gradient(700px 380px at 0% 110%, rgba(255,122,26,.07), transparent 60%),
  var(--bg-2);
  border-bottom: 1px solid var(--line);
}
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
.hero h1 { font-size: clamp(1.9rem, 4vw, 3rem); line-height: 1.2; font-weight: 800; }
.hero h1 span { color: var(--accent); }
.hero .lead { color: var(--muted); margin: 18px 0 30px; font-size: 1.08rem; max-width: 34em; }
.btn-row { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 14px 30px; border-radius: 10px;
  font-weight: 700; font-size: 1rem; transition: all .2s; border: 2px solid transparent;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); color: #fff; }
.btn-ghost { border-color: var(--line); color: var(--text); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* Hero stats card */
.stats-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; }
.stats-card h2 { font-size: 1rem; color: var(--accent); text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 18px; }
.stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.stat b { display: block; font-size: 1.7rem; color: #fff; }
.stat span { color: var(--muted); font-size: .88rem; }

/* ---------- Sections ---------- */
section.block { padding: 72px 0; }
section.block.alt { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.sec-head { max-width: 720px; margin-bottom: 44px; }
.eyebrow { color: var(--accent); font-weight: 800; text-transform: uppercase; letter-spacing: 2px; font-size: .8rem; }
.sec-head h2, h2.page-title { font-size: clamp(1.5rem, 3vw, 2.2rem); margin: 10px 0 14px; line-height: 1.25; }
.sec-head p { color: var(--muted); }

/* Page hero (inner pages) */
.page-hero { padding: 56px 0 44px; background: var(--bg-2); border-bottom: 1px solid var(--line); }
.breadcrumb { font-size: .85rem; color: var(--muted); margin-bottom: 14px; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--accent); }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.cards.two { grid-template-columns: repeat(2, 1fr); }
.cards.four { grid-template-columns: repeat(4, 1fr); }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px; transition: border-color .2s, transform .2s;
}
.card:hover { border-color: var(--accent); transform: translateY(-3px); }
.card .ico { font-size: 1.9rem; margin-bottom: 14px; }
.card h3 { font-size: 1.12rem; margin-bottom: 10px; }
.card p { color: var(--muted); font-size: .95rem; }
.card ul { color: var(--muted); font-size: .93rem; padding-left: 18px; margin-top: 10px; }
.card ul li { margin: 5px 0; }

/* Product cards */
.prod-card { display: flex; flex-direction: column; }
.prod-tag {
  align-self: flex-start; background: rgba(255,122,26,.12); color: var(--accent);
  font-size: .78rem; font-weight: 700; padding: 4px 12px; border-radius: 99px; margin-bottom: 14px;
  text-transform: uppercase; letter-spacing: 1px;
}
.spec-table { width: 100%; border-collapse: collapse; margin-top: 14px; font-size: .9rem; }
.spec-table th, .spec-table td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); }
.spec-table th { color: var(--muted); font-weight: 600; white-space: nowrap; }
.spec-table td { color: var(--text); }

/* Steps (OEM process) */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
.step { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; position: relative; }
.step::before {
  counter-increment: step; content: counter(step);
  display: inline-grid; place-items: center;
  width: 40px; height: 40px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff; font-weight: 800; margin-bottom: 14px;
}
.step h3 { font-size: 1.05rem; margin-bottom: 8px; }
.step p { color: var(--muted); font-size: .92rem; }

/* FAQ */
.faq-list { max-width: 820px; }
details.faq {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 18px 22px; margin-bottom: 14px;
}
details.faq summary { cursor: pointer; font-weight: 700; font-size: 1.02rem; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 12px; }
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after { content: "+"; color: var(--accent); font-size: 1.4rem; font-weight: 400; flex-shrink: 0; }
details.faq[open] summary::after { content: "–"; }
details.faq .a { color: var(--muted); margin-top: 12px; font-size: .97rem; }

/* CTA band */
.cta-band {
  background: linear-gradient(120deg, var(--accent-dark), var(--accent));
  border-radius: var(--radius); padding: 46px 40px; text-align: center; color: #fff;
}
.cta-band h2 { color: #fff; font-size: 1.7rem; margin-bottom: 10px; }
.cta-band p { opacity: .92; margin-bottom: 24px; }
.cta-band .btn { background: #fff; color: var(--accent-dark); }
.cta-band .btn:hover { background: #1b1e24; color: #fff; }

/* Contact / form */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
form.inquiry { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; }
form.inquiry label { display: block; font-weight: 600; font-size: .9rem; margin: 16px 0 6px; }
form.inquiry input, form.inquiry select, form.inquiry textarea {
  width: 100%; background: var(--bg); border: 1px solid var(--line); border-radius: 8px;
  color: var(--text); padding: 12px 14px; font-size: .95rem; font-family: inherit;
}
form.inquiry input:focus, form.inquiry select:focus, form.inquiry textarea:focus { outline: 2px solid var(--accent); border-color: transparent; }
form.inquiry textarea { min-height: 120px; resize: vertical; }
.info-row { display: flex; gap: 14px; align-items: flex-start; margin-bottom: 22px; }
.info-row .ico { font-size: 1.4rem; }
.info-row b { display: block; }
.info-row span { color: var(--muted); font-size: .93rem; }

/* Footer */
footer.site { background: #101216; border-top: 1px solid var(--line); padding: 56px 0 28px; margin-top: 0; }
.foot-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 36px; margin-bottom: 40px; }
.foot-grid h4 { font-size: .9rem; text-transform: uppercase; letter-spacing: 1.5px; color: var(--accent); margin-bottom: 16px; }
.foot-grid ul { list-style: none; }
.foot-grid li { margin: 8px 0; }
.foot-grid a, .foot-grid p { color: var(--muted); font-size: .92rem; }
.foot-grid a:hover { color: var(--accent); }
.foot-bottom { border-top: 1px solid var(--line); padding-top: 22px; color: var(--muted); font-size: .85rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }

/* WhatsApp float */
.wa-float {
  position: fixed; right: 22px; bottom: 22px; z-index: 90;
  width: 58px; height: 58px; border-radius: 50%;
  background: #25d366; display: grid; place-items: center;
  box-shadow: 0 6px 22px rgba(37, 211, 102, .45);
  transition: transform .2s;
}
.wa-float:hover { transform: scale(1.08); }
.wa-float svg { width: 30px; height: 30px; fill: #fff; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero-grid, .contact-grid { grid-template-columns: 1fr; }
  .cards, .cards.four, .steps { grid-template-columns: 1fr 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .cards, .cards.two, .cards.four, .steps { grid-template-columns: 1fr; }
  .nav-links {
    display: none; position: absolute; top: 68px; left: 0; right: 0;
    background: var(--bg-2); border-bottom: 1px solid var(--line);
    flex-direction: column; padding: 18px 24px; gap: 16px;
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .nav .nav-cta { display: none; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  section.block { padding: 52px 0; }
}