/* Craft & Code design system — from Google Stitch (colors + typography) */

:root {
  --bg: #0b1326;
  --surface: #171f33;
  --surface-high: #222a3d;
  --surface-low: #131b2e;
  --text: #dae2fd;
  --muted: #c7c4d7;
  --primary: #c0c1ff;
  --on-primary: #1000a9;
  --secondary: #4fdbc8;
  --border: rgba(144, 143, 160, 0.28);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --max: 80rem;
  --radius: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --font-sans: "Inter", "Noto Sans KR", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --glow-primary: rgba(192, 193, 255, 0.08);
  --glow-secondary: rgba(79, 219, 200, 0.06);
}

* { box-sizing: border-box; }

html { color-scheme: dark; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  position: relative;
  overflow-x: hidden;
}

.site-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
}

.site-bg::before,
.site-bg::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  mix-blend-mode: screen;
}

.site-bg::before {
  top: -20%;
  right: -10%;
  width: 50vw;
  height: 50vw;
  background: var(--glow-primary);
}

.site-bg::after {
  bottom: -10%;
  left: -15%;
  width: 40vw;
  height: 40vw;
  background: var(--glow-secondary);
}

.site-header,
main,
.site-footer {
  position: relative;
  z-index: 1;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover { color: var(--secondary); }

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 1rem 1.5rem;
  flex-shrink: 0;
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 19, 38, 0.82);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}

.logo {
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--text);
  text-decoration: none;
}

.logo:hover {
  color: var(--text);
}

@media (min-width: 768px) {
  .logo {
    font-size: 2rem;
    letter-spacing: -0.02em;
  }
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  flex-wrap: wrap;
  margin-left: auto;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--primary);
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.lang-switch a {
  text-decoration: none;
  color: var(--muted);
}

.lang-switch a.is-active {
  color: var(--secondary);
}

.lang-switch .sep {
  color: var(--border);
}

main {
  flex: 1;
  max-width: var(--max);
  width: 100%;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}

.hero {
  padding: 3.5rem 0 2.5rem;
}

.hero-tag {
  display: inline-block;
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-xl);
  background: rgba(79, 219, 200, 0.1);
  border: 1px solid rgba(79, 219, 200, 0.22);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: lowercase;
  color: var(--secondary);
  margin-bottom: 1.25rem;
}

.hero h1 {
  margin: 0 0 1.25rem;
  font-size: clamp(1.75rem, 5vw, 3rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  max-width: 45rem;
  font-weight: 700;
}

.hero h1 em,
.hero .accent {
  font-style: normal;
  color: var(--primary);
}

.hero .subcopy {
  margin: 0 0 1.5rem;
  font-size: 1.0625rem;
  color: var(--muted);
  max-width: 40rem;
  line-height: 1.6;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.15s ease;
}

.btn:active { transform: scale(0.98); }

.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
}

.btn-primary:hover {
  color: var(--on-primary);
  background: #d4d5ff;
  box-shadow: 0 0 20px var(--glow-primary);
}

.btn-secondary {
  background: var(--surface-low);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  color: var(--primary);
  border-color: rgba(192, 193, 255, 0.45);
  box-shadow: 0 0 15px rgba(192, 193, 255, 0.08);
}

.featured {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
  padding: 2rem;
  margin-top: 1rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.featured-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--secondary);
  margin: 0 0 0.25rem;
}

.featured h2 {
  margin: 0 0 0.25rem;
  font-size: 1.5rem;
  letter-spacing: -0.01em;
}

.featured p {
  margin: 0;
  color: var(--muted);
}

.page-header {
  padding: 3rem 0 2rem;
}

.page-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--secondary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin: 0 0 0.75rem;
}

.page-header h1 {
  margin: 0 0 1rem;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 700;
}

.page-header .lead {
  margin: 0;
  font-size: 1rem;
  color: var(--muted);
  max-width: 35rem;
  line-height: 1.7;
  white-space: pre-line;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr minmax(16rem, 26rem);
  gap: 2.5rem;
  align-items: start;
}

.about-body {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.75;
  white-space: pre-line;
}

.info-card {
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.info-card h2 {
  margin: 0 0 1rem;
  font-size: 1rem;
}

.info-card dl { margin: 0; }

.info-card dt {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0.875rem 0 0.25rem;
  padding-top: 0.875rem;
  border-top: 1px solid var(--border-subtle);
}

.info-card dt:first-of-type {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.info-card dd {
  margin: 0;
  font-size: 0.9375rem;
}

.info-card a {
  color: var(--primary);
}

.product-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2rem;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin-top: 1.5rem;
}

.product-thumb {
  width: 10rem;
  height: 10rem;
  border-radius: var(--radius-lg);
  background: var(--surface-high);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  flex-shrink: 0;
}

.product-thumb img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.product-card h2 {
  margin: 0 0 0.5rem;
  font-size: 1.75rem;
  letter-spacing: -0.01em;
}

.product-tag {
  margin: 0 0 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--secondary);
}

.product-card p {
  margin: 0 0 1rem;
  color: var(--muted);
  line-height: 1.7;
  max-width: 44rem;
}

.product-status {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
}

.site-footer {
  flex-shrink: 0;
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem 1.5rem;
  border-top: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--muted);
}

.site-footer p { margin: 0; }

@media (max-width: 768px) {
  .site-header { padding: 0.875rem 1rem; }
  .site-nav { gap: 1rem; }
  .hero { padding: 2rem 0 1.5rem; }
  .about-grid { grid-template-columns: 1fr; }
  .product-card { grid-template-columns: 1fr; }
  .product-thumb { width: 100%; height: auto; aspect-ratio: 1; max-width: 10rem; }
  main { padding: 0 1rem 3rem; }
  .featured { padding: 1.25rem; }
}