:root {
  --ink-950: #0b0d12;
  --ink-900: #14171f;
  --ink-700: #2a2f3a;
  --paper: #f6f4ef;
  --paper-2: #ece8df;
  --card: #fffdf9;
  --text: #1b1d22;
  --text-2: #5c6170;
  --text-inv: #f3f1ec;
  --text-inv-2: #a9afbd;
  --rule: rgba(20, 23, 31, 0.12);
  --rule-inv: rgba(243, 241, 236, 0.14);
  --mustard-300: #f0c75e;
  --mustard-400: #e6b843;
  --mustard-500: #d9a21b;
  --mustard-700: #8a6206;
  --dusk-500: #3d5a80;
  --status-dev-bg: #fbf3db;
  --status-dev-fg: #7a5600;
  --status-proto-bg: #e6eef8;
  --status-proto-fg: #28466b;
  --status-plan-bg: #ebe9e4;
  --status-plan-fg: #43464f;

  --font-sans: "Pretendard Variable", Pretendard, "Apple SD Gothic Neo", "Noto Sans KR", system-ui, sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --fs-display: clamp(2.4rem, 6.2vw, 5.2rem);
  --fs-h2: clamp(1.75rem, 3.6vw, 2.75rem);
  --fs-h3: 1.25rem;
  --fs-body: 1.0625rem;
  --fs-small: 0.9375rem;
  --fs-label: 0.75rem;

  --s-1: 4px; --s-2: 8px; --s-3: 12px; --s-4: 16px; --s-5: 24px;
  --s-6: 32px; --s-7: 48px; --s-8: 64px; --s-9: 96px; --s-10: 128px;
  --gutter: clamp(20px, 4vw, 40px);
  --section-y: clamp(64px, 10vw, 128px);
  --header-h: 64px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --scrim: linear-gradient(90deg, rgba(11, 13, 18, 0.5) 0%, rgba(11, 13, 18, 0) 62%), linear-gradient(180deg, rgba(11, 13, 18, 0.55) 0%, rgba(11, 13, 18, 0.15) 35%, rgba(11, 13, 18, 0.85) 100%);
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.7;
  word-break: keep-all;
  overflow-wrap: anywhere;
  -webkit-font-smoothing: antialiased;
}

body.menu-open { overflow: hidden; }

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

h1, h2, h3 { margin: 0; font-weight: 700; text-wrap: balance; }
p { margin: 0; text-wrap: pretty; }
ul, ol { margin: 0; padding: 0; list-style: none; }
dl, dd { margin: 0; }
a { color: inherit; }

:focus-visible {
  outline: 2px solid var(--mustard-300);
  outline-offset: 3px;
  border-radius: 2px;
}

section[id] { scroll-margin-top: var(--header-h); }

.container {
  width: min(1200px, 100% - 2 * var(--gutter));
  margin-inline: auto;
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.nowrap { white-space: nowrap; }

.skip-link {
  position: absolute;
  left: var(--s-4);
  top: -100px;
  z-index: 100;
  padding: var(--s-2) var(--s-4);
  background: var(--mustard-300);
  color: var(--ink-950);
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-decoration: none;
}
.skip-link:focus { top: var(--s-3); }

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  height: var(--header-h);
  color: var(--text-inv);
}
.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: rgba(11, 13, 18, 0.92);
  border-bottom: 1px solid var(--rule-inv);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  opacity: 0;
  transition: opacity 200ms var(--ease);
}
.site-header.is-solid::before,
body.menu-open .site-header::before { opacity: 1; }

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-5);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  text-decoration: none;
  white-space: nowrap;
}
.wordmark-mark { width: 22px; height: 22px; color: var(--mustard-300); }
.wordmark-text { font-weight: 700; font-size: 1.0625rem; letter-spacing: 0.16em; }
.wordmark-legal {
  font-size: 0.8125rem;
  color: var(--text-inv-2);
  padding-left: var(--s-2);
  margin-left: var(--s-1);
  border-left: 1px solid var(--rule-inv);
}

.site-nav { display: flex; align-items: center; gap: var(--s-6); }
.site-nav ul { display: flex; gap: var(--s-5); }
.site-nav a {
  color: var(--text-inv-2);
  text-decoration: none;
  font-size: var(--fs-small);
  font-weight: 500;
  transition: color 150ms var(--ease);
}
.site-nav a:hover,
.site-nav a[aria-current="true"] { color: var(--text-inv); }
.site-nav a[aria-current="true"] {
  text-decoration: underline;
  text-decoration-color: var(--mustard-300);
  text-underline-offset: 8px;
  text-decoration-thickness: 2px;
}
.lang-switch {
  padding: 6px 12px;
  border: 1px solid var(--rule-inv);
  border-radius: var(--radius-sm);
}
.site-nav .lang-switch:hover { border-color: var(--text-inv); }

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  margin-right: -10px;
  padding: 10px;
  border: 0;
  background: transparent;
  color: var(--text-inv);
  cursor: pointer;
}
.menu-toggle svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }
.menu-toggle .menu-icon-close { display: none; }
.menu-toggle[aria-expanded="true"] .menu-icon-open { display: none; }
.menu-toggle[aria-expanded="true"] .menu-icon-close { display: inline; }

@media (max-width: 860px) {
  .wordmark-legal { display: none; }
  .menu-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .site-nav {
    position: fixed;
    inset: var(--header-h) 0 0 0;
    flex-direction: column;
    align-items: stretch;
    gap: var(--s-6);
    padding: var(--s-6) var(--gutter) var(--s-8);
    background: var(--ink-950);
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 220ms var(--ease), transform 220ms var(--ease), visibility 0s linear 220ms;
  }
  .site-nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: none;
    transition: opacity 220ms var(--ease), transform 220ms var(--ease), visibility 0s;
  }
  .site-nav ul { flex-direction: column; gap: 0; }
  .site-nav ul a {
    display: block;
    padding: var(--s-4) 0;
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--text-inv);
    border-bottom: 1px solid var(--rule-inv);
  }
  .site-nav a[aria-current="true"] { text-underline-offset: 6px; }
  .lang-switch { align-self: flex-start; font-size: var(--fs-small); }
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  min-height: 48px;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  font-size: var(--fs-small);
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background-color 150ms var(--ease), border-color 150ms var(--ease), transform 100ms var(--ease);
}
.btn:active { transform: scale(0.98); }
.btn-primary { background: var(--mustard-300); color: var(--ink-950); }
.btn-primary:hover { background: var(--mustard-400); }
.btn-ghost { color: var(--text-inv); border-color: rgba(243, 241, 236, 0.4); }
.btn-ghost:hover { border-color: var(--text-inv); background: rgba(243, 241, 236, 0.08); }
.btn-dark { background: var(--ink-950); color: var(--text-inv); }
.btn-dark:hover { background: var(--ink-700); }

.icon-ext { width: 14px; height: 14px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
  text-decoration-color: var(--rule);
}
.text-link:hover { text-decoration-color: currentColor; color: var(--dusk-500); }
.text-link-inv { display: inline; color: var(--text-inv); text-decoration-color: var(--rule-inv); }
.text-link-inv .icon-ext { display: inline; vertical-align: -1px; margin-left: 4px; }
.text-link-inv:hover { color: var(--mustard-300); }

.slate {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mustard-700);
  font-weight: 500;
}
.slate-inv { color: var(--mustard-300); }
.slate-mark { width: 8px; height: 8px; background: currentColor; flex: none; }

.hero {
  position: relative;
  isolation: isolate;
  min-height: min(100svh, 940px);
  display: flex;
  align-items: flex-end;
  padding: calc(var(--header-h) + var(--s-8)) 0 var(--s-8);
  background: var(--ink-950);
  color: var(--text-inv);
  overflow: hidden;
}
.hero-media, .hero-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
}
.hero-media img { object-fit: cover; object-position: 62% 40%; }
.hero-scrim { position: absolute; inset: 0; z-index: -1; background: var(--scrim); }
.hero-inner { display: grid; gap: var(--s-5); }
.hero-title {
  font-size: var(--fs-display);
  line-height: 1.08;
  letter-spacing: -0.035em;
  max-width: 11em;
}
.hero-lead {
  max-width: 34em;
  font-size: clamp(1rem, 1.4vw, 1.1875rem);
  color: rgba(243, 241, 236, 0.86);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--s-3); margin-top: var(--s-2); }
.hero-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--s-5);
  margin-top: var(--s-6);
  padding-top: var(--s-5);
  border-top: 1px solid var(--rule-inv);
  max-width: 880px;
}
.hero-facts dt {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.08em;
  color: var(--text-inv-2);
}
.hero-facts dd { font-size: var(--fs-small); font-weight: 500; margin-top: var(--s-1); line-height: 1.5; }
.hero-caption {
  position: absolute;
  right: var(--gutter);
  top: calc(var(--header-h) + var(--s-5));
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  color: rgba(243, 241, 236, 0.7);
}

@media (max-width: 640px) {
  .hero { min-height: auto; padding-top: calc(var(--header-h) + 38vh); }
  .hero-media img { object-position: 70% 30%; }
  .hero-facts { grid-template-columns: 1fr; gap: var(--s-3); margin-top: var(--s-4); }
  .hero-facts div { display: grid; grid-template-columns: 5.5rem 1fr; gap: var(--s-3); align-items: baseline; }
  .hero-facts dd { margin-top: 0; }
  .hero-caption { display: none; }
}

.section { padding: var(--section-y) 0; }
.section-light { background: var(--paper); }
.section-band { background: var(--paper-2); }
.section-dark { background: var(--ink-950); color: var(--text-inv); }

.section-head { display: grid; gap: var(--s-4); max-width: 46rem; margin-bottom: var(--s-8); }
.section-head h2, .studio-copy h2, .contact h2 {
  font-size: var(--fs-h2);
  line-height: 1.18;
  letter-spacing: -0.025em;
}
.section-lead { color: var(--text-2); }
.section-dark .section-lead { color: var(--text-inv-2); }

.note { font-size: 0.875rem; color: var(--text-2); line-height: 1.6; }

.pillars {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--s-5);
}
.pillar {
  display: grid;
  align-content: start;
  gap: var(--s-3);
  padding: var(--s-6);
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--radius-md);
}
.pillar-index { font-family: var(--font-mono); font-size: var(--fs-label); color: var(--mustard-700); letter-spacing: 0.08em; }
.pillar h3 { font-size: var(--fs-h3); line-height: 1.35; letter-spacing: -0.01em; }
.pillar p { color: var(--text-2); font-size: var(--fs-small); line-height: 1.7; }

.studio-grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: var(--s-8);
  align-items: start;
}
.studio-copy { display: grid; gap: var(--s-5); }
.studio-brand { font-weight: 600; font-size: 1.125rem; }
.studio-brand span { display: block; color: var(--text-2); font-weight: 500; font-size: var(--fs-small); }
.fact-list { display: grid; border-top: 1px solid var(--rule); }
.fact-list div {
  display: grid;
  grid-template-columns: 4em 1fr;
  gap: var(--s-4);
  padding: var(--s-3) 0;
  border-bottom: 1px solid var(--rule);
  font-size: var(--fs-small);
  line-height: 1.55;
}
.fact-list dt { font-weight: 600; }
.fact-list-wide div { grid-template-columns: 5.5em 1fr; }
.history { display: grid; gap: var(--s-4); max-width: 46rem; margin-top: var(--s-8); }
.history h3 { font-size: 1.125rem; letter-spacing: -0.01em; }
.fact-list dd { color: var(--text-2); }
.link-row { display: flex; flex-wrap: wrap; align-items: center; gap: var(--s-3) var(--s-5); }

.studio-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-4);
  position: sticky;
  top: calc(var(--header-h) + var(--s-5));
}
.photo { margin: 0; display: grid; gap: var(--s-2); }
.photo img { border-radius: var(--radius-md); width: 100%; aspect-ratio: 3 / 2; object-fit: cover; background: var(--ink-700); }
.photo-wide { grid-column: 1 / -1; }
.photo-wide img { aspect-ratio: 5 / 3; }
.photo figcaption { font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.06em; color: var(--text-2); }

.projects { display: grid; grid-template-columns: 1fr; gap: var(--s-7); }
.product-evidence[id], .project[id] { scroll-margin-top: calc(var(--header-h) + var(--s-5)); }
.product-evidence { margin-top: var(--s-5); padding-top: var(--s-5); border-top: 1px solid var(--rule-inv); }
.product-evidence h4 { margin: 0 0 var(--s-2); font-size: var(--fs-h3); line-height: 1.4; }
.capture-note { color: var(--text-inv-2); font-size: 0.875rem; max-width: 52rem; }
.product-shots { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s-6) var(--s-5); margin-top: var(--s-5); }
.product-shots figure { margin: 0; }
.shot-link { display: block; text-decoration: none; }
.shot-link img { width: 100%; height: auto; border: 1px solid var(--rule-inv); border-radius: var(--radius-md); }
.shot-link span { display: block; margin-top: var(--s-2); color: var(--mustard-300); font-size: 0.8125rem; }
.shot-link:hover span { text-decoration: underline; text-underline-offset: 3px; }
.product-shots figcaption { margin-top: var(--s-3); }
.product-shots figcaption strong { display: block; font-size: 1rem; color: var(--text-inv); }
.product-shots figcaption p { margin-top: var(--s-2); color: var(--text-inv-2); font-size: var(--fs-small); line-height: 1.65; }
.project {
  display: grid;
  align-content: start;
  gap: var(--s-4);
  padding: var(--s-6);
  background: var(--ink-900);
  border: 1px solid var(--rule-inv);
  border-radius: var(--radius-lg);
}
.project-top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--s-3); }
.project-kind { font-family: var(--font-mono); font-size: var(--fs-label); letter-spacing: 0.06em; color: var(--text-inv-2); }
.project h3 { font-size: 1.5rem; line-height: 1.3; letter-spacing: -0.015em; }
.project-en { display: block; margin-top: var(--s-1); font-size: var(--fs-small); font-weight: 500; color: var(--text-inv-2); letter-spacing: 0; }
.project-tagline { color: var(--mustard-300); font-weight: 600; font-size: var(--fs-small); }
.project > p:not(.project-tagline):not(.project-status) { color: rgba(243, 241, 236, 0.82); font-size: var(--fs-small); line-height: 1.75; }
.checks { display: grid; gap: var(--s-2); }
.checks li {
  position: relative;
  padding-left: 22px;
  font-size: var(--fs-small);
  line-height: 1.6;
  color: var(--text-inv);
}
.checks li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.62em;
  width: 10px;
  height: 6px;
  border-left: 2px solid var(--mustard-300);
  border-bottom: 2px solid var(--mustard-300);
  transform: rotate(-45deg);
}
.project-status {
  margin-top: var(--s-2);
  padding-top: var(--s-4);
  border-top: 1px solid var(--rule-inv);
  font-size: 0.875rem;
  color: var(--text-inv-2);
  line-height: 1.6;
}
.project-status span {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.08em;
  color: var(--text-inv);
  margin-bottom: var(--s-1);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: var(--fs-label);
  font-weight: 600;
  line-height: 1.4;
  white-space: nowrap;
}
.badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge-dev { background: var(--status-dev-bg); color: var(--status-dev-fg); }
.badge-proto { background: var(--status-proto-bg); color: var(--status-proto-fg); }
.badge-plan { background: var(--status-plan-bg); color: var(--status-plan-fg); }

.uses { border-top: 1px solid var(--rule); margin-bottom: var(--s-6); }
.use {
  display: grid;
  grid-template-columns: 11rem minmax(0, 1fr);
  gap: var(--s-5);
  padding: var(--s-5) 0;
  border-bottom: 1px solid var(--rule);
}
.use-meta { display: flex; align-items: center; gap: var(--s-3); align-self: start; padding-top: 2px; }
.use-num { font-family: var(--font-mono); font-size: var(--fs-label); color: var(--mustard-700); letter-spacing: 0.08em; }
.use-body { display: grid; gap: var(--s-2); max-width: 44rem; }
.use-body h3 { font-size: 1.125rem; line-height: 1.45; letter-spacing: -0.01em; }
.use-scope {
  display: inline-block;
  margin-left: var(--s-2);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-2);
  letter-spacing: 0;
}
.use-body p { color: var(--text-2); font-size: var(--fs-small); }

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--s-8);
  align-items: start;
}
.contact-grid > div { display: grid; gap: var(--s-4); }
.contact-mail {
  justify-self: start;
  margin-top: var(--s-3);
  font-size: clamp(1.625rem, 3.6vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: underline;
  text-decoration-color: var(--mustard-300);
  text-decoration-thickness: 2px;
  text-underline-offset: 8px;
  overflow-wrap: normal;
}
.contact-mail:hover { color: var(--mustard-300); }
.contact-sub { color: var(--text-inv-2); font-size: var(--fs-small); }
.company-info { display: grid; border-top: 1px solid var(--rule-inv); }
.company-info div {
  display: grid;
  grid-template-columns: 6.5em 1fr;
  gap: var(--s-4);
  padding: var(--s-4) 0;
  border-bottom: 1px solid var(--rule-inv);
  font-size: var(--fs-small);
  line-height: 1.65;
}
.company-info dt { color: var(--text-inv-2); }
.company-info a { text-underline-offset: 3px; text-decoration-color: var(--rule-inv); }
.company-info a:hover { color: var(--mustard-300); }

.site-footer {
  background: var(--ink-950);
  color: var(--text-inv-2);
  border-top: 1px solid var(--rule-inv);
  font-size: 0.875rem;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--s-4);
  padding: var(--s-6) 0;
}
.footer-inner ul { display: flex; flex-wrap: wrap; gap: var(--s-5); }
.footer-inner a { text-decoration: none; }
.footer-inner a:hover { color: var(--text-inv); }

@media (max-width: 1023px) {
  .studio-grid { grid-template-columns: 1fr; gap: var(--s-7); }
  .studio-gallery { position: static; }
  .contact-grid { grid-template-columns: 1fr; gap: var(--s-7); }
}

@media (max-width: 860px) {
  .pillars { grid-template-columns: 1fr; }
  .projects { grid-template-columns: 1fr; }
  .product-shots { grid-template-columns: 1fr; }
  .use { grid-template-columns: 1fr; gap: var(--s-3); }
}

@media (max-width: 640px) {
  .section-head { margin-bottom: var(--s-7); }
  .pillar, .project { padding: var(--s-5); }
  .studio-gallery { gap: var(--s-3); }
  .use-scope { display: block; margin: var(--s-1) 0 0; }
  .company-info div { grid-template-columns: 1fr; gap: var(--s-1); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .site-header::before, .site-nav, .site-nav.is-open, .site-nav a, .btn, .text-link { transition: none; }
  .btn:active { transform: none; }
}