/* MUSIXQUARE editorial base: shared shell for About, History, and Design. */

:root {
  color-scheme: dark;
  --bg: #121212;
  --surface-1: #1a1a1a;
  --surface-2: #262626;
  --surface-3: #404040;
  --text-main: #ffffff;
  --text-sub: #a1a1aa;
  --text-muted: #71717a;
  --primary: #3b82f6;
  --primary-rgb: 59, 130, 246;
  --radius-s: 14px;
  --radius-m: 20px;
  --radius-l: 32px;
  --glass-bg: rgba(38, 38, 38, 0.75);
  --ease-out: cubic-bezier(0.2, 0.8, 0.2, 1);
  --dur-fast: 0.2s;
  --dur-base: 0.3s;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --header-h: calc(60px + var(--safe-top));
  --tabs-h: 46px;
  --hairline-scale: 1;
  --pad-x: 48px;
  --max-w: 1440px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text-main);
  font-family: Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

body {
  min-height: 100%;
  padding-bottom: calc(80px + var(--safe-bottom));
}

::selection {
  background: rgba(var(--primary-rgb), 0.35);
}

a {
  color: inherit;
  text-decoration: none;
}

svg {
  display: block;
}

.lp-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-h);
  padding: var(--safe-top) calc(24px + var(--safe-right)) 0 calc(24px + var(--safe-left));
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 100;
  overflow: hidden;
  animation:
    editorial-header-fade 0.6s cubic-bezier(0.22, 1, 0.36, 1) both,
    editorial-header-slide 0.9s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes editorial-header-fade {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes editorial-header-slide {
  from { transform: translateY(-20px); }
  to { transform: none; }
}

.lp-header-progress {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 0;
  background-color: var(--primary);
  opacity: 0.15;
  z-index: 0;
  pointer-events: none;
  transition: width 0.4s var(--ease-out);
}

.lp-logo {
  position: relative;
  z-index: 1;
  height: 100%;
  display: flex;
  align-items: center;
  color: var(--text-main);
  transition: opacity var(--dur-fast) var(--ease-out);
}

.lp-logo:hover {
  opacity: 0.7;
}

.lp-logo svg {
  height: 16px;
  width: auto;
}

.editorial-wordmark {
  display: block;
  width: 132px;
  height: 18px;
  background: currentColor;
  mask: url("/designsystem/assets/logo-wordmark.svg") center / contain no-repeat;
  -webkit-mask: url("/designsystem/assets/logo-wordmark.svg") center / contain no-repeat;
}

.lp-try {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 100px;
  background: var(--primary);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0;
  transition: opacity var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}

.lp-try__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #fff;
}

.lp-try:hover {
  opacity: 0.86;
}

.lp-try:active {
  transform: scale(0.98);
}

.editorial-site-tabs {
  position: fixed;
  left: 50%;
  right: auto;
  bottom: calc(14px + var(--safe-bottom));
  width: max-content;
  max-width: calc(100% - 28px);
  height: auto;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 0;
  transform: translateX(-50%);
  z-index: 120;
}

.editorial-site-tabs__inner {
  max-width: 100%;
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 5px;
  overflow-x: auto;
  border: 0;
  border-radius: 100px;
  background: rgba(26, 26, 26, 0.78);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.42);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  scrollbar-width: none;
}

.editorial-site-tabs__inner::-webkit-scrollbar {
  display: none;
}

.editorial-site-tab {
  flex: 0 0 auto;
  box-sizing: border-box;
  height: 40px;
  padding: 0 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 100px;
  color: var(--text-sub);
  font-size: 12px;
  font-weight: 650;
  font-synthesis: none;
  letter-spacing: 0;
  line-height: 1;
  white-space: nowrap;
  transition: color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
}

.editorial-site-tab[href="/about"] { width: 72px; }
.editorial-site-tab[href="/history"] { width: 80px; }
.editorial-site-tab[href="/designsystem"] { width: 78px; }

.editorial-site-tab:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.055);
}

.editorial-site-tab.is-active {
  color: #121212;
  background: #fff;
  font-weight: 800;
}

.lp-h1 {
  margin: 0 0 28px -0.03em;
  color: var(--text-main);
  font-size: clamp(44px, 8vw, 104px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 0.98;
}

.lp-h2 {
  margin: 0 0 28px -0.03em;
  color: var(--text-main);
  font-size: clamp(36px, 5.5vw, 72px);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.05;
}

.lp-lead {
  max-width: 540px;
  margin: 0 0 40px;
  color: var(--text-sub);
  font-size: 17px;
  line-height: 1.55;
  font-weight: 400;
}

.lp-lead strong,
.lp-lead em {
  color: var(--text-main);
  font-style: normal;
  font-weight: 700;
}

.lp-btn-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.lp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 20px 0 28px;
  border: 1px solid var(--primary);
  border-radius: 100px;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: normal;
  cursor: pointer;
  transition:
    opacity var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out),
    background var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out);
}

.lp-btn:hover {
  opacity: 0.86;
}

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

.lp-btn--ghost {
  background: transparent;
  color: var(--text-main);
  border-color: var(--surface-3);
}

.lp-btn--ghost:hover {
  opacity: 1;
  border-color: var(--text-main);
  background: rgba(255, 255, 255, 0.03);
}

.lp-btn--solid {
  background: #fff;
  border-color: #fff;
  color: #121212;
}

.lp-btn--lg {
  height: 56px;
  padding: 0 28px 0 36px;
  font-size: 15px;
}

.lp-btn__arrow {
  display: inline-block;
  transition: transform var(--dur-fast) var(--ease-out);
}

.lp-btn:hover .lp-btn__arrow--down {
  transform: translateY(2px);
}

.lp-btn:hover .lp-btn__arrow--right {
  transform: translateX(2px);
}

.editorial-page .hero {
  max-width: var(--max-w);
  min-height: calc(100vh - var(--header-h));
  margin: var(--header-h) auto 0;
  padding: 80px var(--pad-x);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(260px, 0.95fr);
  gap: clamp(44px, 6vw, 96px);
  align-items: center;
}

.editorial-hero__copy {
  max-width: 720px;
}

.editorial-page .lp-h1 {
  margin: 0 0 0 -0.03em;
  font-size: clamp(48px, 7.5vw, 104px);
}

.editorial-page .lp-lead {
  max-width: 620px;
  margin: 28px 0 0;
  font-size: 17px;
  line-height: 1.6;
  font-weight: 500;
}

.editorial-page .lp-btn-row {
  margin-top: 34px;
}

.editorial-kicker {
  display: none;
}

.hero > .meta,
.hero > .tag {
  display: none;
}

.stats,
.page,
.editorial-page footer {
  max-width: var(--max-w);
}

.stats {
  margin: 0 auto;
  padding: 0 var(--pad-x) 80px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: transparent;
  border: 0;
}

.stat {
  min-height: 132px;
  padding: 28px 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: var(--surface-1);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 0;
}

.stat:first-child {
  border-radius: var(--radius-m) 0 0 var(--radius-m);
}

.stat:last-child {
  border-radius: 0 var(--radius-m) var(--radius-m) 0;
}

.stat .val {
  color: var(--text-main);
  font-size: clamp(28px, 3vw, 44px);
  font-weight: 800;
  letter-spacing: 0;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.stat .val em {
  color: var(--primary);
  font-style: normal;
}

.stat .lbl {
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.page {
  margin: 0 auto;
  padding: 0 var(--pad-x) 120px;
}

.section {
  margin-top: 0;
  padding: 112px 0;
  border-top: 1px solid var(--surface-2);
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 24px;
  margin-bottom: 56px;
  padding: 0;
  border: 0;
}

.section-head h2 {
  margin: 0;
  color: var(--text-main);
  font-size: clamp(36px, 5.2vw, 72px);
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.05;
  text-transform: none;
}

.section-head .phase,
.section-head .num {
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.prose,
.log li,
.milestone,
.infra-card,
.ahead-item,
.wall-item,
.comp,
.motion-card,
.embed,
.dialog,
.pl,
.icon-grid .ic {
  background: var(--surface-1);
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: none;
}

.prose,
.milestone,
.infra-card,
.ahead-item,
.wall-item,
.comp,
.motion-card,
.embed,
.dialog,
.pl {
  border-radius: var(--radius-m);
}

.comp,
.embed,
.pl,
.dialog,
.motion-card {
  min-width: 0;
}

.row > *,
.grid-2 > *,
.grid-3 > * {
  min-width: 0;
}

code {
  color: var(--text-main);
  background: var(--surface-2);
}

.grid-2,
.grid-3,
.infra-grid {
  gap: 20px;
}

.editorial-page footer {
  position: relative;
  margin: 0 auto;
  padding: 32px var(--pad-x);
  border-top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  flex-wrap: wrap;
  color: var(--text-muted);
  font-size: 12px;
}

.editorial-page footer::before,
.lp-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 100vw;
  height: 1px;
  background: var(--surface-2);
  transform: translateX(-50%) scaleY(var(--hairline-scale));
  transform-origin: top center;
}

.editorial-page footer span:last-child {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  align-items: center;
}

.editorial-page footer a {
  color: var(--text-sub);
  transition: color var(--dur-fast) var(--ease-out);
}

.editorial-page footer a:hover {
  color: var(--text-main);
}

.lp-footer {
  position: relative;
  border-top: 0;
  padding: 32px var(--pad-x);
}

.lp-footer__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  line-height: normal;
  gap: 22px;
  flex-wrap: wrap;
}

.lp-footer__copy {
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.lp-footer__contact {
  color: inherit;
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out);
}

.lp-footer__contact:hover {
  color: var(--text-main);
}

.lp-footer__nav {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  align-items: center;
}

.lp-footer__nav a {
  color: var(--text-sub);
  transition: color var(--dur-fast) var(--ease-out);
}

.lp-footer__nav a:hover {
  color: var(--text-main);
}

[data-animate] > * {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 800ms var(--ease-out), transform 800ms var(--ease-out);
}

[data-animate].is-visible > * {
  opacity: 1;
  transform: translateY(0);
}

[data-animate].is-visible > *:nth-child(1) { transition-delay: 0ms; }
[data-animate].is-visible > *:nth-child(2) { transition-delay: 80ms; }
[data-animate].is-visible > *:nth-child(3) { transition-delay: 160ms; }
[data-animate].is-visible > *:nth-child(4) { transition-delay: 240ms; }
[data-animate].is-visible > *:nth-child(5) { transition-delay: 320ms; }

:lang(ko) .lp-h1 {
  letter-spacing: -0.025em;
  font-size: clamp(44px, 7vw, 88px);
  line-height: 1.25;
}

:lang(ko) .lp-h2 {
  letter-spacing: -0.02em;
  font-size: clamp(32px, 4.6vw, 60px);
  line-height: 1.2;
}

:lang(ko) .lp-cta .lp-h2 {
  letter-spacing: -0.025em;
  font-size: clamp(52px, 8vw, 104px);
  line-height: 1.05;
}

:lang(ko) .lp-h1,
:lang(ko) .lp-h2,
:lang(ko) .policy-doc p,
:lang(ko) .policy-doc dd {
  word-break: keep-all;
}

:lang(ko) .lp-lead {
  letter-spacing: 0;
}

.lp-lang-divider {
  color: var(--text-muted);
  user-select: none;
}

.lp-lang-btn {
  background: none;
  border: 0;
  padding: 0;
  margin: 0;
  font: inherit;
  font-size: 12px;
  color: var(--text-sub);
  cursor: pointer;
  transition: color var(--dur-fast) var(--ease-out);
}

.lp-lang-btn:hover,
.lp-lang-btn.is-active {
  color: var(--text-main);
}

.lp-lang-btn.is-active {
  font-weight: 600;
}

@media (max-width: 1023px) {
  .editorial-page .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 72px;
    padding-bottom: 96px;
  }

  .stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .stat:nth-child(1) { border-radius: var(--radius-m) 0 0 0; }
  .stat:nth-child(2) { border-radius: 0 var(--radius-m) 0 0; }
  .stat:nth-child(3) { border-radius: 0 0 0 var(--radius-m); }
  .stat:nth-child(4) { border-radius: 0 0 var(--radius-m) 0; }
}

@media (max-width: 720px) {
  :root {
    --pad-x: 24px;
    --tabs-h: 44px;
  }

  .lp-lead {
    font-size: 16px;
  }

  .editorial-page .lp-h1 {
    font-size: clamp(44px, 13vw, 68px);
  }

  .editorial-page .hero {
    padding-top: 64px;
    padding-bottom: 80px;
  }

  .stats {
    padding-bottom: 48px;
  }

  .stat {
    min-height: 116px;
    padding: 22px;
  }

  .section {
    padding: 78px 0;
  }

  .section-head {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 10px;
    margin-bottom: 40px;
  }

  .section-head h2 {
    font-size: clamp(34px, 11vw, 52px);
  }

  .grid-2,
  .grid-3,
  .infra-grid {
    grid-template-columns: 1fr;
  }

  .grid-2 > *,
  .grid-3 > * {
    grid-column: auto !important;
  }

  .editorial-page footer,
  .lp-footer__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .editorial-page footer span:last-child,
  .lp-footer__nav {
    row-gap: 14px;
  }

  .lp-footer__nav a,
  .lp-lang-btn {
    white-space: nowrap;
  }

  .lp-lang-divider {
    display: none;
  }
}

@media (max-width: 420px) {
  .editorial-site-tabs {
    width: calc(100% - 24px);
  }

  .editorial-site-tabs__inner {
    width: 100%;
  }

  .editorial-site-tab {
    flex: 1 1 0;
    width: auto;
    min-width: 0;
    padding: 0 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }

  .lp-header {
    animation: none;
  }

  [data-animate] > * {
    opacity: 1;
    transform: none;
  }
}