/* ===========================================================
   LP MEDICAL — Design system
   =========================================================== */

:root {
  --color-primary: #0d7d6f;
  --color-primary-dark: #085a50;
  --color-primary-light: #e6f5f2;
  --color-accent: #ff7a45;
  --color-ink: #0f2b28;
  --color-text: #3c4a48;
  --color-muted: #74827f;
  --color-bg: #fbfdfc;
  --color-surface: #ffffff;
  --color-border: #e6ece9;
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --shadow-soft: 0 20px 50px -25px rgba(13, 64, 56, 0.35);
  --shadow-card: 0 12px 30px -18px rgba(15, 43, 40, 0.25);
  --font-display: 'Sora', 'Be Vietnam Pro', sans-serif;
  --font-body: 'Be Vietnam Pro', sans-serif;
  --container-w: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--font-display); color: var(--color-ink); margin: 0 0 .5em; line-height: 1.2; }
p { margin: 0 0 1em; }
ul { list-style: none; margin: 0; padding: 0; }
button { font-family: inherit; cursor: pointer; }

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

.skip-link {
  position: absolute; left: -999px; top: 0; background: var(--color-primary); color: #fff;
  padding: 10px 16px; z-index: 1000; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* ---------- Reveal-on-scroll motion ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .7s cubic-bezier(.16,.84,.44,1), transform .7s cubic-bezier(.16,.84,.44,1);
  transition-delay: var(--delay, 0s);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 28px; border-radius: 999px; font-weight: 600; font-size: .95rem;
  border: 2px solid transparent; transition: transform .25s ease, box-shadow .25s ease, background .25s ease, color .25s ease;
  white-space: nowrap;
}
.btn-primary { background: var(--color-primary); color: #fff; box-shadow: var(--shadow-soft); }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 24px 40px -20px rgba(13,125,111,.55); background: var(--color-primary-dark); }
.btn-ghost { background: rgba(255,255,255,.15); color: #fff; border-color: rgba(255,255,255,.6); backdrop-filter: blur(6px); }
.btn-ghost:hover { background: rgba(255,255,255,.28); transform: translateY(-3px); }
.btn-outline { background: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn-outline:hover { background: var(--color-primary); color: #fff; transform: translateY(-3px); }
.btn-block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(251,253,252,.92); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}
.header-top { display: flex; align-items: center; justify-content: space-between; padding: 14px 24px; gap: 24px; }
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-logo { height: 42px; width: auto; border-radius: 10px; }
.brand-name { font-family: var(--font-display); font-weight: 800; font-size: 1.15rem; color: var(--color-primary-dark); letter-spacing: .02em; white-space: nowrap; }

.nav-bar { border-top: 1px solid var(--color-border); background: var(--color-primary-light); position: relative; }
.main-nav { max-width: 1600px; margin: 0 auto; padding: 0 12px; }
.main-nav ul {
  display: flex; align-items: center; justify-content: center; justify-content: safe center; gap: 0;
  overflow-x: auto; scrollbar-width: none; white-space: nowrap;
}
.main-nav ul::-webkit-scrollbar { display: none; }
.main-nav li { flex-shrink: 0; }
.main-nav a {
  display: inline-block; padding: 13px 7px; border-radius: 6px 6px 0 0; font-weight: 600; font-size: .76rem;
  color: var(--color-primary-dark); transition: background .25s, color .25s; position: relative; letter-spacing: -.01em;
}
.main-nav a::after {
  content: ''; position: absolute; left: 9px; right: 9px; bottom: 6px; height: 2px;
  background: var(--color-primary); transform: scaleX(0); transform-origin: center; transition: transform .25s ease;
}
.main-nav a:hover { color: var(--color-primary-dark); background: rgba(255,255,255,.5); }
.main-nav a:hover::after, .main-nav a.active::after { transform: scaleX(1); }
.main-nav a.active { font-weight: 700; }

.header-actions { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.hotline-btn { display: flex; align-items: center; gap: 8px; font-weight: 700; color: var(--color-primary-dark); white-space: nowrap; }
.btn-compact { padding: 10px 20px; font-size: .85rem; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; padding: 6px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--color-ink); border-radius: 2px; transition: transform .3s, opacity .3s; }
.nav-toggle.is-active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-active span:nth-child(2) { opacity: 0; }
.nav-toggle.is-active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden; min-height: 34vh; display: flex; align-items: center;
  padding: 64px 0 48px; color: #fff;
}
.hero-bg {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  transform: scale(1.08); animation: heroZoom 18s ease-in-out infinite alternate;
}
@keyframes heroZoom { from { transform: scale(1.08); } to { transform: scale(1); } }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(120deg, rgba(8,39,34,.92) 10%, rgba(13,125,111,.75) 55%, rgba(8,39,34,.5) 100%); }
.hero-blob { position: absolute; border-radius: 50%; filter: blur(60px); opacity: .5; animation: float 12s ease-in-out infinite; }
.hero-blob-1 { width: 380px; height: 380px; background: var(--color-accent); top: -120px; right: -80px; }
.hero-blob-2 { width: 320px; height: 320px; background: #26c6b3; bottom: -140px; left: -80px; animation-delay: -6s; }
@keyframes float { 0%,100% { transform: translateY(0) translateX(0); } 50% { transform: translateY(-24px) translateX(16px); } }
.hero-inner { position: relative; z-index: 2; max-width: 760px; }
.eyebrow { text-transform: uppercase; letter-spacing: .14em; font-weight: 700; font-size: .8rem; color: var(--color-accent); margin-bottom: 14px; }
.eyebrow.center { text-align: center; }
.hero-title { font-size: clamp(2.2rem, 4.5vw, 3.4rem); color: #fff; font-weight: 800; letter-spacing: -.01em; }
.hero-subtitle { font-size: clamp(1.05rem, 2vw, 1.3rem); color: rgba(255,255,255,.9); max-width: 560px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 18px; }
.hero-scroll-cue { position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%); z-index: 2; }
.hero-scroll-cue span { display: block; width: 26px; height: 42px; border: 2px solid rgba(255,255,255,.6); border-radius: 999px; position: relative; }
.hero-scroll-cue span::before { content: ''; position: absolute; top: 8px; left: 50%; width: 4px; height: 8px; background: #fff; border-radius: 999px; transform: translateX(-50%); animation: scrollCue 1.8s ease infinite; }
@keyframes scrollCue { 0% { opacity: 1; top: 8px; } 100% { opacity: 0; top: 22px; } }

/* ---------- Sections ---------- */
.section { padding: 96px 0; }
.section-head { max-width: 640px; margin: 0 auto 48px; text-align: center; }
.section-head h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); }
.section-lead { color: var(--color-muted); font-size: 1.05rem; }

/* ---------- About ---------- */
.about-section { background: var(--color-surface); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.about-media { position: relative; }
.about-media img { border-radius: var(--radius-lg); box-shadow: var(--shadow-card); }
.about-badge {
  position: absolute; bottom: -24px; left: -24px; background: #fff; border-radius: var(--radius-md);
  padding: 18px 22px; box-shadow: var(--shadow-card); max-width: 220px;
}
.about-badge strong { display: block; font-family: var(--font-display); font-size: 1.8rem; color: var(--color-primary); }
.about-badge span { font-size: .85rem; color: var(--color-muted); }
.about-content h2 { font-size: clamp(1.9rem, 3.4vw, 2.5rem); }
.about-content .lead { font-size: 1.08rem; color: var(--color-text); }
.about-points { margin: 22px 0; display: flex; flex-direction: column; gap: 12px; }
.about-points li { position: relative; padding-left: 30px; font-weight: 500; }
.about-points li::before {
  content: '✓'; position: absolute; left: 0; top: -1px; width: 22px; height: 22px; border-radius: 50%;
  background: var(--color-primary-light); color: var(--color-primary); font-size: .75rem; display: flex; align-items: center; justify-content: center;
}

/* ---------- Categories ---------- */
.categories-section { background: linear-gradient(180deg, var(--color-primary-light) 0%, var(--color-bg) 100%); }
.category-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 28px; }
.category-card {
  background: var(--color-surface); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-card);
  display: flex; flex-direction: column; transition: transform .35s cubic-bezier(.2,.8,.3,1), box-shadow .35s;
}
.category-card:hover { transform: translateY(-10px); box-shadow: 0 30px 50px -22px rgba(13,64,56,.35); }
.category-media { aspect-ratio: 4/3; overflow: hidden; background: var(--color-primary-light); }
.category-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.category-card:hover .category-media img { transform: scale(1.08); }
.category-media-fallback { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; color: var(--color-primary); }
.category-info { padding: 22px 24px 26px; flex: 1; display: flex; flex-direction: column; }
.category-info h3 { font-size: 1.15rem; }
.category-info p { color: var(--color-muted); font-size: .92rem; flex: 1; }
.category-link { display: inline-flex; align-items: center; gap: 6px; font-weight: 700; color: var(--color-primary); transition: gap .25s; }
.category-card:hover .category-link { gap: 10px; }

/* ---------- Products ---------- */
.product-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 26px; }
.product-card { background: var(--color-surface); border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-card); transition: transform .3s, box-shadow .3s; border: 1px solid var(--color-border); }
.product-card:hover { transform: translateY(-8px); box-shadow: 0 26px 44px -22px rgba(15,43,40,.3); }
.product-media { position: relative; aspect-ratio: 1/1; background: var(--color-primary-light); overflow: hidden; }
.product-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.product-card:hover .product-media img { transform: scale(1.06); }
.product-media-fallback { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; color: var(--color-primary); }
.product-media-fallback.large { aspect-ratio: 1/1; border-radius: var(--radius-md); background: var(--color-primary-light); }
.product-tag { position: absolute; top: 12px; left: 12px; background: var(--color-accent); color: #fff; font-size: .72rem; font-weight: 700; padding: 5px 12px; border-radius: 999px; }
.product-info { padding: 18px 20px 22px; }
.product-info h3 { font-size: 1.02rem; margin-bottom: 6px; }
.product-info p { font-size: .88rem; color: var(--color-muted); }
.product-price { font-weight: 700; color: var(--color-primary-dark); }

/* ---------- Testimonials ---------- */
.testimonial-section { background: var(--color-ink); }
.testimonial-section .eyebrow, .testimonial-section h2 { color: #fff; }
.testimonial-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.testimonial-card { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); border-radius: var(--radius-md); padding: 28px; color: #fff; margin: 0; }
.testimonial-card .stars { color: var(--color-accent); letter-spacing: 2px; margin-bottom: 12px; }
.testimonial-card p { font-size: 1.02rem; }
.testimonial-name { font-weight: 700; display: block; }
.testimonial-role { font-size: .85rem; color: rgba(255,255,255,.6); }

/* ---------- Partners ---------- */
.partners-section { text-align: center; }
.partners-track { display: flex; flex-wrap: wrap; gap: 48px; justify-content: center; align-items: center; margin-top: 32px; }
.partner-logo img { height: 64px; width: auto; object-fit: contain; filter: grayscale(1); opacity: .7; transition: filter .3s, opacity .3s, transform .3s; }
.partner-logo img:hover { filter: grayscale(0); opacity: 1; transform: scale(1.06); }

/* ---------- Contact ---------- */
.contact-section { background: var(--color-surface); }
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: start; }
.contact-list { margin: 20px 0; display: flex; flex-direction: column; gap: 12px; font-size: .98rem; }
.contact-form { background: var(--color-primary-light); border-radius: var(--radius-lg); padding: 36px; display: flex; flex-direction: column; gap: 18px; }
.form-row { display: flex; flex-direction: column; gap: 6px; }
.form-row label { font-weight: 600; font-size: .88rem; color: var(--color-ink); }
.form-row input, .form-row textarea {
  padding: 13px 16px; border-radius: var(--radius-sm); border: 1px solid var(--color-border); font-family: inherit;
  font-size: .95rem; background: #fff; transition: border-color .25s, box-shadow .25s;
}
.form-row input:focus, .form-row textarea:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 4px rgba(13,125,111,.15); }
.form-success { background: #e4f7ec; color: #1e7d4a; padding: 12px 16px; border-radius: var(--radius-sm); font-weight: 600; }
.form-error { background: #fdeceb; color: #b3261e; padding: 12px 16px; border-radius: var(--radius-sm); font-weight: 600; }

/* ---------- Footer ---------- */
.site-footer { background: var(--color-ink); color: rgba(255,255,255,.82); padding-top: 72px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,.1); }
.footer-logo { height: 44px; margin-bottom: 14px; border-radius: 8px; }
.footer-company { font-weight: 700; color: #fff; }
.footer-col h4 { color: #fff; font-size: 1rem; margin-bottom: 16px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a:hover { color: var(--color-accent); }
.footer-contact li { display: flex; gap: 10px; align-items: flex-start; margin-bottom: 12px; }
.footer-contact svg { flex-shrink: 0; margin-top: 3px; color: var(--color-accent); }
.footer-social { display: flex; gap: 10px; margin-top: 16px; }
.footer-social a { width: 38px; height: 38px; border-radius: 50%; background: rgba(255,255,255,.08); display: flex; align-items: center; justify-content: center; font-size: .75rem; font-weight: 700; transition: background .25s; }
.footer-social a:hover { background: var(--color-primary); }
.footer-cta { display: inline-block; margin-top: 8px; font-weight: 700; color: var(--color-accent); }
.footer-bottom { padding: 22px 0; text-align: center; font-size: .85rem; color: rgba(255,255,255,.5); }

/* ---------- Page hero (category/contact) ---------- */
.page-hero { position: relative; padding: 160px 0 70px; color: #fff; overflow: hidden; }
.page-hero.small { padding: 140px 0 60px; }
.page-hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
.page-hero-overlay { position: absolute; inset: 0; background: linear-gradient(120deg, rgba(8,39,34,.92), rgba(13,125,111,.7)); }
.page-hero .container { position: relative; z-index: 2; }
.page-hero h1 { color: #fff; font-size: clamp(2rem, 4vw, 2.8rem); }
.breadcrumb { display: flex; gap: 8px; font-size: .88rem; color: rgba(255,255,255,.75); margin-bottom: 16px; }
.breadcrumb a:hover { color: #fff; }

/* ---------- Category layout ---------- */
.category-layout-grid { display: grid; grid-template-columns: 260px 1fr; gap: 48px; align-items: start; }
.category-sidebar { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 26px; position: sticky; top: 100px; }
.category-sidebar h4 { font-size: .95rem; }
.category-sidebar ul { display: flex; flex-direction: column; gap: 10px; margin-bottom: 24px; }
.category-sidebar a { font-weight: 600; font-size: .92rem; color: var(--color-text); transition: color .2s; }
.category-sidebar a:hover { color: var(--color-primary); }
.sidebar-cta { border-top: 1px solid var(--color-border); padding-top: 20px; display: flex; flex-direction: column; gap: 10px; }
.sidebar-cta p { font-size: .88rem; font-weight: 600; }
.category-description { margin-bottom: 32px; color: var(--color-text); }
.empty-state { text-align: center; padding: 60px 20px; background: var(--color-primary-light); border-radius: var(--radius-md); display: flex; flex-direction: column; gap: 18px; align-items: center; }
.pagination { display: flex; gap: 8px; justify-content: center; margin-top: 40px; }
.pagination a { width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; border-radius: 50%; font-weight: 700; border: 1px solid var(--color-border); transition: background .2s, color .2s; }
.pagination a:hover, .pagination a.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

/* ---------- Product detail ---------- */
.product-detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; margin-bottom: 60px; }
.product-gallery-main { aspect-ratio: 1/1; border-radius: var(--radius-lg); overflow: hidden; background: var(--color-primary-light); box-shadow: var(--shadow-card); }
.product-gallery-main img { width: 100%; height: 100%; object-fit: cover; }
.product-gallery-thumbs { display: flex; gap: 12px; margin-top: 14px; }
.thumb { width: 72px; height: 72px; border-radius: var(--radius-sm); overflow: hidden; border: 2px solid transparent; padding: 0; background: var(--color-primary-light); }
.thumb.active, .thumb:hover { border-color: var(--color-primary); }
.thumb img { width: 100%; height: 100%; object-fit: cover; }
.product-cat-tag { display: inline-block; background: var(--color-primary-light); color: var(--color-primary-dark); font-weight: 700; font-size: .78rem; padding: 6px 14px; border-radius: 999px; margin-bottom: 14px; }
.product-summary h1 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
.product-short { font-size: 1.02rem; color: var(--color-text); }
.product-price-large { font-family: var(--font-display); font-size: 1.6rem; color: var(--color-primary-dark); font-weight: 700; }
.product-actions { display: flex; gap: 14px; flex-wrap: wrap; margin: 20px 0 28px; }
.spec-table { width: 100%; border-collapse: collapse; }
.spec-table th, .spec-table td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--color-border); font-size: .92rem; }
.spec-table th { width: 40%; color: var(--color-muted); font-weight: 600; }
.product-description { max-width: 820px; margin-bottom: 64px; }
.rich-content :is(p, ul, ol) { margin-bottom: 1em; }
.related-products h2 { margin-bottom: 28px; }

/* ---------- Misc ---------- */
.not-found { text-align: center; padding: 160px 0; }
.map-embed { margin-top: 24px; border-radius: var(--radius-md); overflow: hidden; }
.map-embed iframe { width: 100%; height: 280px; border: 0; }
.contact-section.standalone { padding-top: 96px; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .about-grid, .contact-grid, .product-detail-grid { grid-template-columns: 1fr; }
  .category-layout-grid { grid-template-columns: 1fr; }
  .category-sidebar { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  .nav-bar { border-top: none; background: transparent; height: 0; overflow: visible; }
  .main-nav {
    position: fixed; inset: 70px 16px auto 16px; background: #fff; border-radius: var(--radius-md);
    box-shadow: var(--shadow-card); padding: 10px; max-height: 0; overflow: hidden; opacity: 0;
    transition: max-height .35s ease, opacity .3s ease; pointer-events: none; z-index: 99; max-width: none;
  }
  .main-nav.open { max-height: 75vh; opacity: 1; pointer-events: auto; overflow-y: auto; }
  .main-nav ul { flex-direction: column; align-items: stretch; overflow: visible; white-space: normal; }
  .main-nav a { display: block; padding: 12px 16px; border-radius: 10px; }
  .main-nav a::after { display: none; }
  .main-nav a:hover, .main-nav a.active { background: var(--color-primary-light); }
  .nav-toggle { display: flex; }
  .hotline-btn span { display: none; }
  .btn-compact { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
}