/* Hsinova Limited — modern-tech design system */
:root {
  --bg: #070b14;
  --bg-elevated: #0e1524;
  --bg-card: rgba(18, 28, 48, 0.72);
  --bg-glass: rgba(255, 255, 255, 0.04);
  --border: rgba(125, 211, 252, 0.14);
  --border-strong: rgba(34, 211, 238, 0.35);
  --text: #e8eef9;
  --text-muted: #93a4c3;
  --text-dim: #6b7c9c;
  --accent: #22d3ee;
  --accent-2: #38bdf8;
  --accent-deep: #0891b2;
  --navy: #0b1220;
  --gradient: linear-gradient(135deg, #22d3ee 0%, #3b82f6 50%, #8b5cf6 100%);
  --gradient-soft: linear-gradient(160deg, rgba(34, 211, 238, 0.12), rgba(59, 130, 246, 0.06) 40%, transparent 70%);
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
  --radius: 16px;
  --radius-sm: 10px;
  --font: "Segoe UI", "Helvetica Neue", "PingFang SC", "Noto Sans JP", "Noto Sans KR", "Malgun Gothic", system-ui, sans-serif;
  --max: 1120px;
  --header-h: 72px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; height: auto; }
a { color: var(--accent-2); text-decoration: none; }
a:hover { color: var(--accent); }
h1, h2, h3, h4 { line-height: 1.2; letter-spacing: -0.02em; margin: 0 0 0.6em; }
p { margin: 0 0 1em; color: var(--text-muted); }
.container { width: min(100% - 2rem, var(--max)); margin-inline: auto; }

/* Ambient background */
.page-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(34, 211, 238, 0.18), transparent 50%),
    radial-gradient(ellipse 60% 40% at 90% 10%, rgba(59, 130, 246, 0.14), transparent 45%),
    radial-gradient(ellipse 50% 40% at 50% 100%, rgba(139, 92, 246, 0.08), transparent 50%),
    var(--bg);
}
.page-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.35), transparent 70%);
  pointer-events: none;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(7, 11, 20, 0.75);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 1rem;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text);
  font-weight: 700;
  letter-spacing: 0.12em;
  font-size: 1.05rem;
}
.logo:hover { color: var(--text); }
.logo-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--gradient);
  display: grid;
  place-items: center;
  font-size: 0.75rem;
  font-weight: 800;
  color: #041018;
  letter-spacing: 0;
  box-shadow: 0 0 24px rgba(34, 211, 238, 0.35);
}
.nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}
.nav a {
  color: var(--text-muted);
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 500;
}
.nav a:hover, .nav a[aria-current="page"] {
  color: var(--text);
  background: var(--bg-glass);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.lang-switch {
  position: relative;
}
.lang-btn {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--bg-glass);
  color: var(--text);
  border-radius: 999px;
  padding: 0.4rem 0.85rem;
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
.lang-btn:hover, .lang-btn:focus-visible {
  border-color: var(--border-strong);
  outline: none;
}
.lang-menu {
  display: none;
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  min-width: 140px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  padding: 0.35rem;
  list-style: none;
  margin: 0;
}
.lang-switch.open .lang-menu { display: block; }
.lang-menu a {
  display: block;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  color: var(--text-muted);
  font-size: 0.9rem;
}
.lang-menu a:hover, .lang-menu a[aria-current="true"] {
  background: var(--bg-glass);
  color: var(--text);
}
.menu-toggle {
  display: none;
  appearance: none;
  border: 1px solid var(--border);
  background: var(--bg-glass);
  color: var(--text);
  width: 42px;
  height: 42px;
  border-radius: 12px;
  cursor: pointer;
}
.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  margin: 4px auto;
  border-radius: 2px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.35rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--gradient);
  color: #041018;
  box-shadow: 0 8px 28px rgba(34, 211, 238, 0.25);
}
.btn-primary:hover { color: #041018; filter: brightness(1.05); }
.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover {
  border-color: var(--border-strong);
  background: var(--bg-glass);
  color: var(--text);
}

/* Hero */
.hero {
  padding: 4.5rem 0 3.5rem;
  position: relative;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2.5rem;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}
.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
}
.hero h1 {
  font-size: clamp(2.1rem, 4.5vw, 3.35rem);
  font-weight: 750;
  max-width: 16ch;
  margin-bottom: 1rem;
  background: linear-gradient(180deg, #fff 20%, #a5c4e8 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-lead {
  font-size: 1.08rem;
  max-width: 42ch;
  margin-bottom: 1.75rem;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.hero-visual {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  aspect-ratio: 4/3;
  background: var(--bg-elevated);
}
.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.9;
}
.hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(7,11,20,0.75), transparent 45%);
}
.hero-badge {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  z-index: 1;
  padding: 0.65rem 0.9rem;
  border-radius: 12px;
  background: rgba(7, 11, 20, 0.7);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* Sections */
.section { padding: 3.5rem 0; }
.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
}
.section-head h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin: 0;
}
.section-head p { margin: 0.4rem 0 0; max-width: 48ch; }

/* Cards / grids */
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem;
  backdrop-filter: blur(10px);
}
.value-card {
  background: var(--gradient-soft), var(--bg-card);
}
.value-card .icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(34, 211, 238, 0.12);
  border: 1px solid var(--border);
  color: var(--accent);
  margin-bottom: 1rem;
  font-size: 1.1rem;
}
.value-card h3 { font-size: 1.1rem; margin-bottom: 0.4rem; }
.value-card p { margin: 0; font-size: 0.95rem; }

.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.1rem;
}
.category-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 0;
  color: inherit;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.category-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
  color: inherit;
}
.category-card .media {
  aspect-ratio: 16/10;
  overflow: hidden;
  position: relative;
}
.category-card .media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}
.category-card:hover .media img { transform: scale(1.04); }
.category-card .body { padding: 1.1rem 1.2rem 1.25rem; }
.category-card h3 { font-size: 1.05rem; margin-bottom: 0.35rem; color: var(--text); }
.category-card p { font-size: 0.9rem; margin: 0 0 0.85rem; }
.category-card .linkish {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent);
}

.teaser {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1.5rem;
  align-items: center;
  padding: 2rem;
  background: var(--gradient-soft), var(--bg-card);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 4px);
}
.teaser h2 { font-size: clamp(1.4rem, 2.5vw, 1.85rem); }
.cta-band {
  text-align: center;
  padding: 3rem 1.5rem;
  border-radius: calc(var(--radius) + 6px);
  border: 1px solid var(--border);
  background:
    radial-gradient(ellipse at 50% 0%, rgba(34, 211, 238, 0.15), transparent 55%),
    var(--bg-elevated);
}
.cta-band h2 { margin-bottom: 0.5rem; }
.cta-band p { max-width: 40ch; margin: 0 auto 1.5rem; }

/* Page hero (inner) */
.page-hero {
  padding: 2.75rem 0 1.5rem;
}
.page-hero h1 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); margin-bottom: 0.5rem; }
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
  font-size: 0.88rem;
  color: var(--text-dim);
  margin-bottom: 1rem;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb span { opacity: 0.5; }

/* About */
.prose { max-width: 68ch; }
.prose .lead { font-size: 1.15rem; color: var(--text); }
.facts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}
.fact {
  padding: 1.1rem 1.2rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-glass);
}
.fact dt { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-dim); margin-bottom: 0.35rem; }
.fact dd { margin: 0; color: var(--text); font-weight: 600; }
.fact a { color: var(--accent); }

/* Product grids */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.1rem;
}
.product-card {
  overflow: hidden;
  padding: 0;
  color: inherit;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.product-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
  color: inherit;
}
.product-card .media {
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--bg-elevated);
}
.product-card .media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.product-card .body { padding: 1rem 1.1rem 1.15rem; }
.product-card .sku {
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.04em;
  margin-bottom: 0.25rem;
}
.product-card h3 { font-size: 1rem; margin-bottom: 0.35rem; color: var(--text); }
.product-card p { font-size: 0.88rem; margin: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

.note {
  margin-top: 1.5rem;
  padding: 0.9rem 1.1rem;
  border-radius: var(--radius-sm);
  border: 1px dashed var(--border);
  background: rgba(34, 211, 238, 0.04);
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Product detail */
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}
.detail-media {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  aspect-ratio: 1;
  position: relative;
}
.detail-media img { width: 100%; height: 100%; object-fit: cover; }
.pill {
  display: inline-flex;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  font-size: 0.75rem;
  border: 1px solid var(--border);
  color: var(--text-muted);
  background: var(--bg-glass);
}
.meta-row { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 1rem 0 1.25rem; }

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 1.5rem;
  align-items: start;
}
.contact-panel {
  padding: 1.5rem;
}
.contact-panel h2 { font-size: 1.2rem; margin-bottom: 0.75rem; }
.email-big {
  display: inline-block;
  font-size: 1.15rem;
  font-weight: 650;
  color: var(--accent);
  margin: 0.5rem 0 1rem;
  word-break: break-all;
}
.form-grid { display: grid; gap: 0.9rem; }
label { display: grid; gap: 0.35rem; font-size: 0.88rem; color: var(--text-muted); }
input, textarea {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(7, 11, 20, 0.65);
  color: var(--text);
  font: inherit;
}
input:focus, textarea:focus {
  outline: none;
  border-color: var(--border-strong);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.12);
}
textarea { min-height: 140px; resize: vertical; }
.form-hint { font-size: 0.85rem; color: var(--text-dim); margin: 0; }
.form-success {
  display: none;
  margin-top: 1rem;
  padding: 0.9rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: rgba(34, 211, 238, 0.08);
  color: var(--text);
  font-size: 0.92rem;
}
.form-success.show { display: block; }

/* Footer */
.site-footer {
  margin-top: 4rem;
  border-top: 1px solid var(--border);
  padding: 2.5rem 0 2rem;
  background: rgba(0, 0, 0, 0.25);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}
.footer-grid h3 {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-bottom: 0.85rem;
}
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 0.45rem; }
.footer-grid a { color: var(--text-muted); font-size: 0.92rem; }
.footer-grid a:hover { color: var(--accent); }
.footer-brand .logo { margin-bottom: 0.75rem; }
.footer-note {
  font-size: 0.82rem;
  color: var(--text-dim);
  border-top: 1px solid var(--border);
  padding-top: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
}

/* Utilities */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.mt-2 { margin-top: 2rem; }

@media (max-width: 960px) {
  .hero-grid, .teaser, .detail-grid, .contact-grid, .footer-grid {
    grid-template-columns: 1fr;
  }
  .values-grid, .category-grid, .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-visual { max-width: 520px; }
}
@media (max-width: 720px) {
  .menu-toggle { display: inline-grid; place-items: center; }
  .nav {
    display: none;
    position: absolute;
    left: 1rem;
    right: 1rem;
    top: calc(var(--header-h) + 8px);
    flex-direction: column;
    align-items: stretch;
    padding: 0.75rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
  }
  .nav.open { display: flex; }
  .nav a { padding: 0.75rem 1rem; }
  .values-grid, .category-grid, .product-grid, .facts {
    grid-template-columns: 1fr;
  }
  .hero { padding-top: 2.5rem; }
}