/* =========================================================
   verticaltech — style.css  (v3 · editorial terrain system)
   Warm-black ink ramp · Clash Display + Pretendard
   12-col asymmetric grid · container guides · clip-path chamfer
   · mix-blend watermarks · progressive-blur nav · outline marquee
   Blue is a SIGNAL, not a glow.
   ========================================================= */

/* ---------- tokens ---------- */
:root {
  /* warm-black ink ramp (bg → raised surface) */
  --ink-0: #0C0B09;
  --ink-1: #14120F;
  --ink-2: #1E1B17;

  /* warm neutral text ramp */
  --neutral-0: #EAE8E3;
  --neutral-1: #B7B3AB;
  --neutral-2: #8C877D;
  --neutral-3: #57534B;

  --line:   rgba(234, 232, 227, 0.10);
  --line-2: rgba(234, 232, 227, 0.18);
  --line-3: rgba(234, 232, 227, 0.30);

  /* signal blue — reserved for links/hover, focus, active, WebGL, meta points */
  --signal:      #3B5BFF;
  --signal-2:    #6E82FF;
  --signal-soft: rgba(59, 91, 255, 0.12);

  /* light-invert scope (Process) */
  --paper:   #EAE8E3;
  --paper-1: #DEDBD3;
  --line-d:  rgba(12, 11, 9, 0.14);
  --line-d2: rgba(12, 11, 9, 0.26);

  /* legacy aliases — subpages still reference these names */
  --bg: var(--ink-0);   --bg-2: var(--ink-1);
  --surface: var(--ink-1); --surface-2: var(--ink-2);
  --border: var(--line);   --border-2: var(--line-2);
  --text: var(--neutral-0); --dim: var(--neutral-1); --mute: var(--neutral-2);
  --accent: var(--signal);  --accent-2: var(--signal-2);
  --accent-soft: var(--signal-soft); --accent-glow: rgba(59, 91, 255, 0.22);

  --font-sans:  'Pretendard Variable', Pretendard, -apple-system, BlinkMacSystemFont, system-ui, 'Apple SD Gothic Neo', sans-serif;
  --font-mono:  'JetBrains Mono', ui-monospace, monospace;
  --font-disp:  'Clash Display', 'Space Grotesk', var(--font-sans);

  --nav-h: 74px;
  --gutter: clamp(20px, 5vw, 72px);
  --maxw: 1440px;
  /* content edge = where the container padding sits (guide-line anchor) */
  --edge: max(var(--gutter), calc((100vw - var(--maxw)) / 2));
  --cut: clamp(10px, 1.1vw, 14px);

  --e-out:   cubic-bezier(0.22, 1, 0.36, 1);
  --e-inout: cubic-bezier(0.65, 0, 0.35, 1);
  --e-expo:  cubic-bezier(0.16, 1, 0.3, 1);
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { -webkit-text-size-adjust: 100%; scroll-padding-top: var(--nav-h); }

/* 한글은 기본값이 음절 단위로 끊긴다("축적/된"). 어절 경계에서만 줄바꿈하고,
   긴 라틴 문자열(URL·기술명)만 예외로 쪼갠다 */
body { word-break: keep-all; overflow-wrap: break-word; }

body {
  font-family: var(--font-sans);
  background: var(--ink-0);
  color: var(--neutral-0);
  line-height: 1.62;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

body.is-loading { overflow: hidden; height: 100vh; }

a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

::selection { background: var(--signal); color: #fff; }
:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; border-radius: 2px; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.mono {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 11px;
  font-weight: 400;
  font-feature-settings: "tnum" 1;
}
.serif {
  font-family: var(--font-disp);
  font-weight: 600;
}

/* =========================================================
   surfaces
   · .glass  — quiet ruled surface (NO backdrop-blur; used on cards)
   · float glass (nav panel / mobile menu) keeps real blur explicitly
   ========================================================= */
.glass {
  background: linear-gradient(180deg, rgba(234, 232, 227, 0.035), rgba(234, 232, 227, 0.012));
  background-color: var(--ink-1);
  border: 1px solid var(--line);
}
.glass-border { position: relative; }
.glass-border::after {
  content: ""; position: absolute; inset: 0;
  padding: 1px; border-radius: inherit;
  background: linear-gradient(150deg, rgba(234, 232, 227, 0.22), transparent 46%, rgba(234, 232, 227, 0.04) 88%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  pointer-events: none;
}

/* corner-cut chamfer signature (structural surfaces only) */
.chamfer {
  clip-path: polygon(
    var(--cut) 0, 100% 0,
    100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%,
    0 100%, 0 var(--cut));
}
.chamfer-alt {
  clip-path: polygon(
    0 0, calc(100% - var(--cut)) 0, 100% var(--cut),
    100% 100%, var(--cut) 100%, 0 calc(100% - var(--cut)));
}
/* thin diagonal marker sitting on the cut corner */
.chamfer-mark::after {
  content: ""; position: absolute; z-index: 2;
  width: calc(var(--cut) * 1.42); height: 1px;
  background: var(--line-3);
  top: calc(var(--cut) / 2); left: calc(-1 * var(--cut) / 2 + 1px);
  transform: rotate(-45deg); transform-origin: left center;
  pointer-events: none;
}

/* fallback: no backdrop-filter → solid frosted panels */
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .navmenu { background: rgba(12, 11, 9, 0.98); }
  .nav__panel { background-color: rgba(20, 18, 15, 0.98); }
  .gradient-blur { display: none; }
}

/* =========================================================
   container guide frame (inside .site, above its bg, below content)
   ========================================================= */
.site { position: relative; }
.frame { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.frame__line { position: absolute; top: 0; bottom: 0; width: 1px; background: var(--line); }
.frame__line--l { left: var(--edge); }
.frame__line--r { right: var(--edge); }
.frame__plus { position: absolute; width: 11px; height: 11px; }
.frame__plus::before, .frame__plus::after { content: ""; position: absolute; background: var(--line-3); }
.frame__plus::before { left: 50%; top: 0; bottom: 0; width: 1px; transform: translateX(-50%); }
.frame__plus::after { top: 50%; left: 0; right: 0; height: 1px; transform: translateY(-50%); }
.frame__plus--tl { left: var(--edge); top: calc(var(--nav-h) + 8px); transform: translate(-50%, -50%); }
.frame__plus--tr { right: var(--edge); top: calc(var(--nav-h) + 8px); transform: translate(50%, -50%); }
.frame__plus--bl { left: var(--edge); bottom: 8px; transform: translate(-50%, 50%); }
.frame__plus--br { right: var(--edge); bottom: 8px; transform: translate(50%, 50%); }

/* ---------- ambient: grain + cursor ---------- */
.grain {
  position: fixed; inset: 0; z-index: 3; pointer-events: none;
  opacity: 0.055; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.86' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.cursor {
  position: fixed; left: 0; top: 0; z-index: 9999; pointer-events: none;
  width: 11px; height: 11px; border-radius: 50%;
  border: 1px solid rgba(234, 232, 227, 0.65);
  transform: translate3d(-50%, -50%, 0);
  mix-blend-mode: difference;
  display: none; will-change: transform;
}
.cursor.is-on { display: grid; place-items: center; }
.cursor__label {
  font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.14em;
  text-transform: uppercase; color: #000; opacity: 0; white-space: nowrap;
  transform: scale(0.6);
}

/* =========================================================
   0. PRELOADER
   ========================================================= */
.preloader {
  position: fixed; inset: 0; z-index: 1000;
  background: var(--ink-0);
  display: grid; place-items: center; will-change: transform;
}
.preloader__inner {
  position: relative;
  display: flex; flex-direction: column; align-items: center; gap: 18px;
  padding-inline: 24px; text-align: center;
}
.preloader__mark {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.34em;
  text-transform: uppercase; color: var(--neutral-2);
}
.preloader__count {
  font-family: var(--font-disp); font-weight: 600;
  font-size: clamp(4.5rem, 18vw, 11rem); line-height: 1;
  letter-spacing: -0.045em; color: var(--neutral-0);
  display: flex; align-items: baseline;
}
.preloader__count i { font-size: 0.28em; color: var(--neutral-2); margin-left: 6px; font-style: normal; }
.preloader__label { color: var(--neutral-3); }
.preloader__bar {
  width: min(240px, 60vw); height: 1px; background: var(--line-2);
  overflow: hidden; margin-top: 4px;
}
.preloader__bar span {
  display: block; width: 100%; height: 100%; background: var(--signal);
  transform: scaleX(0); transform-origin: left; will-change: transform;
}

/* =========================================================
   1. NAV  (+ progressive blur zone)
   ========================================================= */
.gradient-blur {
  position: fixed; z-index: 80; inset: 0 0 auto 0;
  /* 헤더 높이 + 짧은 페이드 꼬리. 이보다 크면 헤더 아래로 흐린 띠가 보인다 */
  height: calc(var(--nav-h) + 18px); pointer-events: none;
  transition: opacity 0.4s ease, transform 0.55s var(--e-out);
}
.gradient-blur > div, .gradient-blur::before, .gradient-blur::after {
  position: absolute; inset: 0;
}
/* 마스크는 to top — 가장 센 블러가 헤더 뒤(위)에 오고 아래로 사라진다 */
.gradient-blur::before {
  content: ""; z-index: 1; backdrop-filter: blur(0.6px); -webkit-backdrop-filter: blur(0.6px);
  -webkit-mask: linear-gradient(to top, rgba(0,0,0,0) 0%, #000 22%, #000 45%, rgba(0,0,0,0) 68%);
  mask: linear-gradient(to top, rgba(0,0,0,0) 0%, #000 22%, #000 45%, rgba(0,0,0,0) 68%);
}
.gradient-blur > div:nth-of-type(1) {
  z-index: 2; backdrop-filter: blur(1.5px); -webkit-backdrop-filter: blur(1.5px);
  -webkit-mask: linear-gradient(to top, rgba(0,0,0,0) 18%, #000 42%, #000 64%, rgba(0,0,0,0) 84%);
  mask: linear-gradient(to top, rgba(0,0,0,0) 18%, #000 42%, #000 64%, rgba(0,0,0,0) 84%);
}
.gradient-blur > div:nth-of-type(2) {
  z-index: 3; backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
  -webkit-mask: linear-gradient(to top, rgba(0,0,0,0) 38%, #000 62%, #000 84%, rgba(0,0,0,0) 100%);
  mask: linear-gradient(to top, rgba(0,0,0,0) 38%, #000 62%, #000 84%, rgba(0,0,0,0) 100%);
}
.gradient-blur > div:nth-of-type(3) {
  z-index: 4; backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  -webkit-mask: linear-gradient(to top, rgba(0,0,0,0) 62%, #000 86%, #000 100%);
  mask: linear-gradient(to top, rgba(0,0,0,0) 62%, #000 86%, #000 100%);
}
/* 헤더가 숨으면 블러 존도 함께 사라져야 한다 */
.nav.is-hidden ~ .gradient-blur,
body:has(.nav.is-hidden) .gradient-blur { opacity: 0; transform: translateY(-105%); }
.gradient-blur > div:nth-of-type(4),
.gradient-blur > div:nth-of-type(5),
.gradient-blur > div:nth-of-type(6) { display: none; }

.nav {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 90;
  height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between;
  padding-inline: var(--gutter);
  transition: transform 0.55s var(--e-out), background 0.4s ease;
}
.nav::before {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: linear-gradient(180deg, rgba(12, 11, 9, 0.6), rgba(12, 11, 9, 0));
  opacity: 0.5; transition: opacity 0.4s ease;
}
.nav::after {
  content: ""; position: absolute; left: var(--gutter); right: var(--gutter); bottom: 0; height: 1px;
  background: var(--line); opacity: 0; transition: opacity 0.4s ease; pointer-events: none;
}
.nav.is-scrolled::before { opacity: 1; }
.nav.is-scrolled::after { opacity: 1; }
.nav.is-hidden { transform: translateY(-105%); }

.nav__logo { display: flex; align-items: center; gap: 11px; }
.nav__mark {
  width: 7px; height: 22px;
  background: var(--neutral-0);
  clip-path: polygon(0 0, 100% 0, 100% 78%, 50% 100%, 0 78%);
}
.nav__word {
  font-family: var(--font-disp); font-weight: 600; font-size: 18px;
  letter-spacing: -0.02em;
}

.nav__menu { display: none; gap: 4px; }
.nav__menu a {
  position: relative; padding: 8px 14px; font-size: 14px; color: var(--neutral-1);
  transition: color 0.3s ease;
}
.nav__menu a span { position: relative; }
.nav__menu a span::after {
  content: ""; position: absolute; left: 0; bottom: -3px; width: 100%; height: 1px;
  background: var(--signal); transform: scaleX(0); transform-origin: right;
  transition: transform 0.4s var(--e-out);
}
.nav__menu a:hover { color: var(--neutral-0); }
.nav__menu a:hover span::after { transform: scaleX(1); transform-origin: left; }

.nav__cta { display: none; }

.nav__burger { display: inline-flex; flex-direction: column; gap: 5px; padding: 10px; }
.nav__burger span {
  width: 22px; height: 1.5px; background: var(--neutral-0); border-radius: 2px;
  transition: transform 0.4s var(--e-out), opacity 0.3s ease;
}
.nav.menu-open .nav__burger span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav.menu-open .nav__burger span:nth-child(2) { transform: translateY(-6.5px) rotate(-45deg); }

/* mobile overlay — full-screen frosted glass (float glass retained) */
.navmenu {
  position: fixed; inset: 0; z-index: 89;
  background: linear-gradient(180deg, rgba(20, 18, 15, 0.9), rgba(12, 11, 9, 0.94));
  backdrop-filter: blur(26px) saturate(140%); -webkit-backdrop-filter: blur(26px) saturate(140%);
  display: flex; flex-direction: column; justify-content: center; gap: 40px;
  padding: var(--gutter);
  opacity: 0; visibility: hidden; transform: translateY(-2%);
  transition: opacity 0.5s var(--e-out), transform 0.5s var(--e-out), visibility 0.5s;
}
.navmenu.is-open { opacity: 1; visibility: visible; transform: none; }
.navmenu__list { display: flex; flex-direction: column; gap: 2px; }
.navmenu__list a {
  display: flex; align-items: baseline; gap: 18px;
  font-family: var(--font-disp); font-weight: 600;
  font-size: clamp(2.1rem, 12vw, 3.6rem); letter-spacing: -0.015em;
  padding: 10px 0; border-bottom: 1px solid var(--line);
  opacity: 0; transform: translateY(16px);
}
.navmenu.is-open .navmenu__list a { opacity: 1; transform: none; transition: opacity 0.5s var(--e-out), transform 0.5s var(--e-out); }
.navmenu.is-open .navmenu__list a:nth-child(1) { transition-delay: 0.08s; }
.navmenu.is-open .navmenu__list a:nth-child(2) { transition-delay: 0.14s; }
.navmenu.is-open .navmenu__list a:nth-child(3) { transition-delay: 0.20s; }
.navmenu.is-open .navmenu__list a:nth-child(4) { transition-delay: 0.26s; }
.navmenu.is-open .navmenu__list a:nth-child(5) { transition-delay: 0.32s; }
.navmenu.is-open .navmenu__list a:nth-child(6) { transition-delay: 0.38s; }
.navmenu__list em { font-family: var(--font-mono); font-size: 13px; color: var(--signal); font-style: normal; }
.navmenu__cta { align-self: flex-start; }

/* =========================================================
   buttons  (primary = pill island · secondary/chip = chamfer)
   ========================================================= */
.btn {
  position: relative; display: inline-flex; align-items: center; gap: 12px;
  font-size: 14px; font-weight: 500; white-space: nowrap;
  transition: transform 0.4s var(--e-out), background 0.4s ease, color 0.4s ease, border-color 0.4s ease;
  will-change: transform;
}
.btn:active { transform: scale(0.97); }
.btn__ico {
  width: 26px; height: 26px; border-radius: 50%;
  display: grid; place-items: center; flex-shrink: 0;
  background: rgba(234, 232, 227, 0.1);
  transition: transform 0.45s var(--e-out), background 0.4s ease;
}
.btn__ico svg { width: 14px; height: 14px; }
.btn:hover .btn__ico { transform: translate(2px, -2px); background: rgba(234, 232, 227, 0.18); }

.btn--pill {
  padding: 11px 12px 11px 20px; border-radius: 999px;
  border: 1px solid var(--line-2); color: var(--neutral-0);
  background: rgba(234, 232, 227, 0.02);
}
.btn--pill:hover { border-color: var(--line-3); background: rgba(234, 232, 227, 0.05); }

.btn--solid {
  padding: 13px 14px 13px 24px; border-radius: 999px;
  background: var(--neutral-0); color: var(--ink-0);
  box-shadow: 0 14px 40px -20px rgba(0, 0, 0, 0.9);
}
.btn--solid .btn__ico { background: rgba(12, 11, 9, 0.12); }
.btn--solid:hover .btn__ico { background: rgba(12, 11, 9, 0.2); }

/* secondary = chamfered outline control (corner-cut signature) */
.btn--ghost {
  padding: 13px 24px; color: var(--neutral-0);
  --cut: 9px;
  background:
    linear-gradient(var(--ink-1), var(--ink-1)) padding-box,
    linear-gradient(135deg, var(--line-3), transparent 60%, var(--signal)) border-box;
  border: 1px solid transparent;
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
}
.btn--ghost:hover { background: linear-gradient(var(--ink-2), var(--ink-2)) padding-box, linear-gradient(135deg, var(--signal), transparent 66%, var(--signal)) border-box; }

.btn--lg { font-size: 15px; padding: 16px 16px 16px 28px; }
.btn--lg .btn__ico { width: 30px; height: 30px; }

/* =========================================================
   shared section bits
   ========================================================= */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--neutral-2); margin-bottom: 28px;
}
.eyebrow .dash { color: var(--signal); }
.eyebrow--center { display: flex; justify-content: center; }

.dot { width: 6px; height: 6px; border-radius: 50%; background: var(--signal); }

/* 12-col asymmetric section head: title col 1-8 / meta col 10-12 */
.section-head { position: relative; display: grid; grid-template-columns: repeat(12, 1fr); gap: 24px; align-items: start; }
.section-head__body { grid-column: 1 / -1; order: 2; }
.section-head__meta { grid-column: 1 / -1; order: 1; }

.section-title {
  font-family: var(--font-disp);
  font-weight: 800; letter-spacing: -0.018em; line-height: 1.0;
  font-size: clamp(2.4rem, 6.6vw, 6.4rem);
}
.section-title .l { display: block; overflow: hidden; padding-bottom: 0.02em; }
.section-title .l > span,
.section-title .char { display: inline-block; will-change: transform; }
.section-title .serif { letter-spacing: -0.01em; }

/* =========================================================
   2. HERO  (rhythm A · full-bleed typography)
   ========================================================= */
.hero {
  position: relative; min-height: 100svh;
  display: flex; flex-direction: column; justify-content: center;
  padding-top: var(--nav-h); overflow: hidden; isolation: isolate;
}
.hero__webgl {
  position: absolute; inset: 0; z-index: -2;
  width: 100%; height: 100%;
  opacity: 0; transition: opacity 1.4s ease; pointer-events: none;
}
.hero__webgl.is-live { opacity: 1; }
.hero__grid {
  position: absolute; inset: -10%; z-index: -3;
  background-image:
    linear-gradient(90deg, var(--line) 1px, transparent 1px),
    linear-gradient(var(--line) 1px, transparent 1px);
  background-size: clamp(72px, 9vw, 132px) clamp(72px, 9vw, 132px);
  -webkit-mask-image: radial-gradient(120% 90% at 50% 34%, #000 18%, transparent 76%);
  mask-image: radial-gradient(120% 90% at 50% 34%, #000 18%, transparent 76%);
  opacity: 0.5;
}
/* micro-noise layer over the hero only (grain reinforcement) */
.hero__scan {
  position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: linear-gradient(180deg, transparent 0%, rgba(12,11,9,0) 58%, var(--ink-0) 100%);
}
.hero__scan::before {
  content: ""; position: absolute; inset: 0; opacity: 0.04; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='m'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='1'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23m)'/%3E%3C/svg%3E");
}
/* legacy glow nodes → neutralized (no large blue glow) */

.hero__inner { position: relative; z-index: 1; }
.hero__eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  color: var(--neutral-2); margin-bottom: clamp(22px, 3vw, 36px);
}

.hero__title {
  font-family: var(--font-disp);
  /* 한글은 라틴보다 자간을 덜 조여야 어절 경계가 유지된다 */
  font-weight: 800; letter-spacing: -0.02em; line-height: 0.94;
  /* min 3.1rem: 360px 뷰포트에서 최장 라인('홈페이지·앱부터' 8자) 줄넘침 방지 */
  font-size: clamp(3.1rem, 10vw, 10rem);
  margin-bottom: clamp(34px, 5vw, 60px);
}
.hero__title .line { display: block; overflow: hidden; padding-bottom: 0.06em; }
.hero__title .char,
.hero__title .rw-word { display: inline-block; will-change: transform; }
.hero__title .rw-mask { display: inline-block; overflow: hidden; vertical-align: bottom; }
.hero__title .serif { letter-spacing: -0.01em; padding-right: 0.04em; }
/* 초소형 화면(≤359px) 안전장치: 인덱스 히어로 최장 라인 줄넘침 방지 */
@media (max-width: 359px) { .hero__title { font-size: 2.75rem; } }

.hero__foot { display: flex; flex-direction: column; gap: 28px; align-items: flex-start; }
.hero__sub {
  font-size: clamp(15px, 1.5vw, 18px); color: var(--neutral-1);
  line-height: 1.66; max-width: 44ch;
}
.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; }

.hero__scroll {
  position: absolute; left: var(--gutter); bottom: clamp(20px, 4vh, 40px); z-index: 1;
  display: flex; align-items: center; gap: 12px; color: var(--neutral-3);
}
.hero__scroll i { position: relative; width: 32px; height: 1px; background: var(--line-2); overflow: hidden; }
.hero__scroll i::after {
  content: ""; position: absolute; inset: 0; background: var(--signal);
  transform: translateX(-100%); animation: scrollLine 2s var(--e-inout) infinite;
}
@keyframes scrollLine {
  0% { transform: translateX(-100%); } 50% { transform: translateX(0); } 100% { transform: translateX(100%); }
}

/* =========================================================
   3. METRICS  (rhythm C · ruled chamfer cells)
   ========================================================= */
.metrics {
  position: relative; overflow: clip;
  padding-block: clamp(64px, 9vw, 104px);
  border-top: 1px solid var(--line);
}
.metrics::before { display: none; } /* legacy glow off */
.metrics__grid { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); }
.metric {
  position: relative; background: var(--ink-1);
  padding: clamp(26px, 4vw, 46px) clamp(20px, 3vw, 36px);
  display: flex; flex-direction: column; gap: 6px;
}
.metric__num {
  font-family: var(--font-disp); font-weight: 600;
  font-size: clamp(3rem, 8vw, 5.2rem); line-height: 0.96; letter-spacing: -0.04em;
  display: flex; align-items: baseline; color: var(--neutral-0);
}
.metric__num b { font-weight: 600; color: var(--signal); margin-left: 3px; }
.metric__label {
  font-family: var(--font-disp); font-weight: 600; letter-spacing: -0.01em;
  font-size: clamp(1.1rem, 1.7vw, 1.45rem); color: var(--neutral-0); margin-top: 12px;
}
.metric__desc { color: var(--neutral-3); font-size: 10px; }

/* =========================================================
   4. ABOUT  (rhythm B · offset · mix-blend watermark)
   ========================================================= */
.about {
  position: relative; overflow: clip;
  padding-block: clamp(96px, 16vw, 200px);
}
.about__inner { position: relative; z-index: 1; }
.about__watermark {
  position: absolute; top: 6%; right: clamp(-16px, 1vw, 48px); z-index: 0;
  writing-mode: vertical-rl; text-orientation: mixed;
  font-family: var(--font-disp); font-weight: 700;
  font-size: clamp(6rem, 17vw, 16rem); line-height: 1; letter-spacing: 0.02em;
  color: var(--neutral-2); opacity: 0.5; mix-blend-mode: difference;
  pointer-events: none; user-select: none; will-change: transform;
}
.about__statement {
  position: relative;
  /* 한글은 글자폭 ≈ 1em. ch(숫자 0의 폭)로 재면 줄이 과도하게 짧아진다 */
  font-weight: 600; letter-spacing: -0.02em; line-height: 1.45;
  font-size: clamp(1.4rem, 2.5vw, 2.25rem); max-width: 30em;
}
.about .hl-word { color: rgba(234, 232, 227, 0.16); transition: none; }
.about__meta {
  position: relative;
  margin-top: clamp(48px, 7vw, 96px);
  display: flex; flex-wrap: wrap; gap: 20px 64px; align-items: baseline;
  border-top: 1px solid var(--line); padding-top: 32px;
}
.about__meta .mono { color: var(--signal); }
.about__note { color: var(--neutral-1); font-size: clamp(15px, 1.6vw, 18px); max-width: 40ch; }

/* =========================================================
   5. BUSINESS  (rhythm C · sticky chamfer card stack)
   ========================================================= */
.business {
  position: relative; overflow: clip;
  padding-block: clamp(64px, 9vw, 120px) clamp(84px, 12vw, 160px);
}
.business::before, .business::after { display: none; } /* legacy glow off */
.business__head { margin-bottom: clamp(52px, 7vw, 92px); }
.business__lead { color: var(--neutral-1); font-size: clamp(15px, 1.7vw, 19px); line-height: 1.6; max-width: 46ch; }

.stack { position: relative; }
.stack-card { margin-bottom: 24px; }
.stack-card__inner { will-change: transform; }

.bcard__inner {
  position: relative; background: var(--ink-1); border: 1px solid var(--line);
  --cut: clamp(16px, 2vw, 24px);
  padding: clamp(30px, 4vw, 58px);
  min-height: clamp(340px, 46vh, 480px);
  display: flex; flex-direction: column; justify-content: center; overflow: hidden;
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
}
.bcard__inner::before {
  content: ""; position: absolute; top: 0; right: 0; z-index: 0;
  width: 220px; height: 220px; pointer-events: none;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 22px 22px;
  -webkit-mask-image: radial-gradient(100% 100% at 100% 0%, #000, transparent 70%);
  mask-image: radial-gradient(100% 100% at 100% 0%, #000, transparent 70%);
  opacity: 0.6;
}
.bcard__grid { position: relative; z-index: 1; display: grid; gap: 32px; }
.bcard__top { display: flex; align-items: center; gap: 16px; margin-bottom: 22px; }
.bcard__num { font-family: var(--font-mono); font-size: 13px; color: var(--signal); letter-spacing: 0.14em; }
.bcard__top .label { color: var(--neutral-2); }
.bcard__title {
  font-weight: 700; letter-spacing: -0.018em; line-height: 1.08;
  font-size: clamp(1.9rem, 4.6vw, 3.4rem);
}
.bcard__desc { margin-top: 20px; max-width: 42ch; color: var(--neutral-1); font-size: clamp(15px, 1.6vw, 17px); line-height: 1.66; }
.bcard__side { display: flex; flex-direction: column; gap: 28px; }
.bcard__ico {
  width: 56px; height: 56px; color: var(--signal);
  display: grid; place-items: center; border: 1px solid var(--line-2);
  --cut: 10px;
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
  background: var(--signal-soft);
}
.bcard__ico svg { width: 30px; height: 30px; }
.bcard__list { display: flex; flex-direction: column; gap: 14px; }
.bcard__list li {
  display: flex; align-items: center; gap: 12px;
  font-size: clamp(14px, 1.5vw, 16px); color: var(--neutral-0);
  padding-bottom: 14px; border-bottom: 1px solid var(--line);
}
.bcard__list li:last-child { border-bottom: 0; padding-bottom: 0; }
.tick { width: 6px; height: 6px; flex-shrink: 0; background: var(--signal); transform: rotate(45deg); }
.bcard__cta {
  align-self: flex-start; margin-top: clamp(24px, 3vw, 34px);
  display: inline-flex; align-items: center; gap: 12px;
  padding: 12px 20px; font-size: 14px; font-weight: 500; color: var(--neutral-0);
  --cut: 9px;
  background: linear-gradient(var(--ink-2), var(--ink-2)) padding-box, linear-gradient(135deg, var(--signal), transparent 62%, var(--line-3)) border-box;
  border: 1px solid transparent;
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
  transition: transform 0.4s var(--e-out), background 0.4s ease; will-change: transform;
}
.bcard__cta:hover { background: linear-gradient(#242019, #242019) padding-box, linear-gradient(135deg, var(--signal), var(--signal) 40%, transparent 90%) border-box; }
.bcard__cta .btn__ico { background: rgba(234, 232, 227, 0.1); }
.bcard__cta:hover .btn__ico { transform: translate(2px, -2px); background: rgba(234, 232, 227, 0.18); }
.bcard__eg { margin-top: 18px; max-width: 44ch; color: var(--neutral-1); font-size: clamp(13px, 1.4vw, 15px); line-height: 1.6; }
.bcard__eg .mono { color: var(--signal); margin-right: 8px; padding: 2px 7px; border: 1px solid var(--line-2); font-size: 9px; }
.bcard__more {
  display: inline-flex; align-items: center; gap: 8px;
  margin-top: clamp(18px, 2.4vw, 24px); align-self: flex-start;
  color: var(--neutral-1); font-size: 14px; font-weight: 500;
  transition: color 0.3s ease, gap 0.3s ease;
}
.bcard__more:hover { color: var(--neutral-0); gap: 12px; }
.bcard__more i { color: var(--signal); font-style: normal; transition: transform 0.35s var(--e-out); }
.bcard__more:hover i { transform: translateX(3px); }

/* =========================================================
   6. WORK  (rhythm C · ruled chamfer case cells · mix-blend thumbs)
   ========================================================= */
.work {
  position: relative; overflow: clip;
  padding-block: clamp(74px, 10vw, 130px);
  border-top: 1px solid var(--line);
}
.work::before { display: none; } /* legacy glow off */
.work__head { position: relative; margin-bottom: clamp(44px, 6vw, 76px); }
.work__note { color: var(--neutral-3); }

.work__grid { position: relative; display: grid; grid-template-columns: 1fr; gap: clamp(20px, 2.4vw, 30px) 24px; }
.wcard {
  position: relative; display: block; padding: 12px;
  background: var(--ink-1); border: 1px solid var(--line);
  --cut: 14px;
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
  transition: transform 0.6s var(--e-out), background 0.5s ease;
  will-change: transform;
}
.wcard:hover { background: var(--ink-2); }
.wcard__thumb {
  position: relative; aspect-ratio: 4 / 3; overflow: hidden;
  border: 1px solid var(--line);
  --cut: 12px;
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, var(--cut) 100%, 0 100%);
  background:
    linear-gradient(150deg, #1a1712, #100e0b);
  transition: border-color 0.5s ease;
}
.wcard__thumb::before {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(234, 232, 227, 0.05) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(234, 232, 227, 0.05) 1px, transparent 1px);
  background-size: 34px 34px;
  -webkit-mask-image: radial-gradient(80% 80% at 50% 50%, #000 30%, transparent 82%);
  mask-image: radial-gradient(80% 80% at 50% 50%, #000 30%, transparent 82%);
  opacity: 0.55;
}
/* hue overlay driven by --h1/--h2, blended over the panel (mix-blend screen) */
.wcard__thumb::after {
  content: ""; position: absolute; inset: 0; mix-blend-mode: screen;
  background:
    radial-gradient(120% 120% at 20% 15%, hsl(var(--h1) 62% 30%) 0%, transparent 56%),
    radial-gradient(120% 120% at 84% 90%, hsl(var(--h2) 58% 26%) 0%, transparent 56%);
  opacity: 0.5; transition: opacity 0.6s ease;
}
.wcard:hover .wcard__thumb { border-color: var(--line-2); }
.wcard:hover .wcard__thumb::after { opacity: 0.85; }
.wcard__idx {
  position: absolute; top: 14px; left: 14px; z-index: 1;
  font-family: var(--font-disp); font-weight: 600; font-size: clamp(1.4rem, 3vw, 2rem);
  letter-spacing: -0.02em; color: rgba(234, 232, 227, 0.16);
}
.wcard__meta { display: flex; flex-direction: column; gap: 8px; padding: 18px 8px 8px; }
.wcard__meta .mono { color: var(--signal); font-size: 10px; }
.wcard__meta h3 {
  font-size: clamp(1.15rem, 2vw, 1.5rem); font-weight: 600; letter-spacing: -0.02em;
  transition: color 0.4s ease;
}
.wcard:hover .wcard__meta h3 { color: #fff; }
.wcard__desc { color: var(--neutral-1); font-size: clamp(13px, 1.4vw, 14.5px); line-height: 1.6; max-width: 42ch; margin-top: 2px; }

/* ---- 실제 스크린샷 썸네일 (다크 시스템 톤 오버레이) ---- */
.wcard__thumb--shot { background: #100e0b; }
.wcard__thumb--shot .wcard__img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: top center;
  filter: saturate(0.82) brightness(0.72) contrast(1.03);
  transition: transform 0.7s var(--e-out), filter 0.6s ease;
}
.wcard:hover .wcard__thumb--shot .wcard__img { transform: scale(1.045); filter: saturate(0.96) brightness(0.86) contrast(1.03); }
.wcard__thumb--shot::before { opacity: 0; }                 /* 이미지 위 그리드 감춤 */
.wcard__thumb--shot::after {
  mix-blend-mode: normal; opacity: 1;
  background:
    linear-gradient(180deg, rgba(12, 11, 9, 0) 42%, rgba(12, 11, 9, 0.72) 100%),
    radial-gradient(130% 100% at 82% 92%, hsl(var(--h2) 55% 26% / 0.32) 0%, transparent 62%);
}
.wcard:hover .wcard__thumb--shot::after { opacity: 0.84; }
.wcard__thumb--shot .wcard__idx { color: rgba(234, 232, 227, 0.92); text-shadow: 0 2px 14px rgba(0, 0, 0, 0.6); }

/* ---- 섹션 레벨 포트폴리오 링크 ---- */
.work__more-wrap { display: flex; justify-content: center; margin-top: clamp(34px, 4.5vw, 56px); }
.work__more-wrap--left { justify-content: flex-start; }
.svc-more { padding-block: clamp(30px, 5vw, 60px); }
.svc-more .work__more-wrap { margin-top: 0; }
.work__more {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 13px 22px; border: 1px solid var(--line-2);
  color: var(--neutral-1); font-size: 14px; font-weight: 500;
  --cut: 10px;
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
  transition: color 0.35s ease, border-color 0.35s ease, gap 0.35s ease, background 0.4s ease;
}
.work__more:hover { color: var(--neutral-0); border-color: var(--signal); gap: 14px; background: var(--ink-1); }
.work__more i { color: var(--signal); font-style: normal; transition: transform 0.35s var(--e-out); }
.work__more:hover i { transform: translateX(4px); }

/* =========================================================
   6b. PRINCIPLES  (rhythm C · ruled chamfer pillars)
   ========================================================= */
.principles {
  position: relative; overflow: clip;
  padding-block: clamp(74px, 10vw, 130px);
  border-top: 1px solid var(--line);
}
.principles::before { display: none; }
.principles__head { position: relative; margin-bottom: clamp(44px, 6vw, 76px); }
.principles__lead { color: var(--neutral-1); font-size: clamp(15px, 1.7vw, 18px); line-height: 1.6; max-width: 46ch; }
.pillars { position: relative; display: grid; grid-template-columns: 1fr; gap: 1px; background: var(--line); }
.pill {
  position: relative; background: var(--ink-1);
  padding: clamp(26px, 3vw, 38px);
  display: flex; flex-direction: column; gap: 14px;
  min-height: clamp(200px, 22vw, 260px);
  transition: background 0.5s ease;
}
.pill:hover { background: var(--ink-2); }
.pill::before {
  content: ""; position: absolute; left: 0; top: 0; width: 0; height: 1px;
  background: var(--signal); transition: width 0.5s var(--e-out);
}
.pill:hover::before { width: 100%; }
.pill__num { font-family: var(--font-mono); color: var(--signal); font-size: 12px; letter-spacing: 0.16em; }
.pill__title { font-size: clamp(1.3rem, 2.4vw, 1.75rem); font-weight: 600; letter-spacing: -0.02em; }
.pill__desc { color: var(--neutral-1); font-size: clamp(14px, 1.5vw, 15.5px); line-height: 1.62; margin-top: auto; }

/* =========================================================
   7. PROCESS  (LIGHT-INVERT section · paper + ink)
   ========================================================= */
.process {
  position: relative; overflow: clip;
  background: var(--paper); color: var(--ink-0);
  padding-block: clamp(74px, 10vw, 130px);
}
/* local guide lines (site frame is covered by the paper bg) */
.process::before, .process::after {
  content: ""; position: absolute; top: 0; bottom: 0; width: 1px; background: var(--line-d); pointer-events: none;
}
.process::before { left: var(--edge); }
.process::after { right: var(--edge); }
.process__head { position: relative; margin-bottom: clamp(48px, 6vw, 84px); }
.process .eyebrow { color: rgba(12, 11, 9, 0.5); }
.process .eyebrow .dash { color: var(--signal); }
.process .section-title { color: var(--ink-0); }

.steps { position: relative; display: grid; gap: 0; border-top: 1px solid var(--line-d2); }
.step {
  display: grid; grid-template-columns: auto 1fr; gap: 20px;
  align-items: start; padding-block: clamp(30px, 4vw, 46px);
  border-bottom: 1px solid var(--line-d);
  transition: background 0.5s ease;
}
.step:hover { background: rgba(12, 11, 9, 0.03); }
.step__num { font-family: var(--font-mono); color: var(--signal); font-size: 13px; padding-top: 8px; letter-spacing: 0.14em; }
.step__title {
  font-family: var(--font-disp); font-weight: 600;
  font-size: clamp(1.8rem, 4.2vw, 3rem); letter-spacing: -0.02em; line-height: 1;
  display: flex; align-items: baseline; gap: 18px; flex-wrap: wrap; color: var(--ink-0);
}
.step__title em {
  font-family: var(--font-sans); font-style: normal; font-size: 0.34em;
  color: rgba(12, 11, 9, 0.55); font-weight: 500; letter-spacing: 0;
}
.step__desc { margin-top: 14px; color: rgba(12, 11, 9, 0.62); font-size: clamp(14px, 1.5vw, 16px); max-width: 52ch; }

/* =========================================================
   8. MARQUEE  (outline stroke typography)
   ========================================================= */
.stack-marquee { padding-block: clamp(64px, 9vw, 110px); overflow: hidden; border-top: 1px solid var(--line); }
.stack-marquee .eyebrow { margin-bottom: clamp(38px, 5vw, 60px); }
.marquee {
  overflow: hidden; white-space: nowrap;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}
.marquee + .marquee { margin-top: clamp(6px, 1.2vw, 14px); }
.marquee__row { display: inline-flex; align-items: center; gap: clamp(24px, 3vw, 46px); will-change: transform; }

/* =========================================================
   9. CTA  (rhythm A · ruled chamfer panel · no glow)
   ========================================================= */
.cta {
  position: relative; overflow: hidden; isolation: isolate;
  padding-block: clamp(84px, 13vw, 170px);
  border-top: 1px solid var(--line); text-align: center;
}
.cta__panel {
  position: relative; background: var(--ink-1); border: 1px solid var(--line);
  --cut: clamp(20px, 3vw, 34px);
  padding: clamp(52px, 8vw, 110px) clamp(24px, 5vw, 80px);
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
}
.cta__panel::before {
  content: "verticaltech"; position: absolute; left: 50%; bottom: -0.18em; transform: translateX(-50%);
  font-family: var(--font-disp); font-weight: 700; letter-spacing: -0.04em;
  font-size: clamp(4rem, 16vw, 15rem); line-height: 1; white-space: nowrap;
  color: var(--neutral-2); opacity: 0.06; mix-blend-mode: screen; pointer-events: none; user-select: none;
}
.cta__inner { position: relative; display: flex; flex-direction: column; align-items: center; }
.cta__title {
  font-family: var(--font-disp);
  font-weight: 800; letter-spacing: -0.02em; line-height: 0.94;
  font-size: clamp(2.4rem, 8vw, 6.8rem); margin-top: 10px;
}
.cta__title .l { display: block; overflow: hidden; padding-bottom: 0.04em; }
.cta__title .l > span, .cta__title .char { display: inline-block; will-change: transform; }
.cta__sub { margin-top: 28px; color: var(--neutral-1); font-size: clamp(15px, 1.7vw, 19px); max-width: 40ch; }
.cta__actions { margin-top: clamp(38px, 5vw, 54px); display: flex; flex-direction: column; align-items: center; gap: 22px; }
.cta__mail { color: var(--neutral-1); border-bottom: 1px solid var(--line-2); padding-bottom: 3px; transition: color 0.4s ease, border-color 0.4s ease; }
.cta__mail:hover { color: var(--neutral-0); border-color: var(--signal); }

.cta__routes { display: flex; flex-direction: column; align-items: center; gap: 14px; margin-top: 4px; }
.cta__routes-label { color: var(--neutral-3); }
.cta__chips { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
.cta__chip {
  --cut: 8px;
  padding: 9px 18px; font-size: 13.5px; font-weight: 500; color: var(--neutral-1);
  background: var(--ink-2); border: 1px solid var(--line-2);
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
  transition: color 0.3s ease, border-color 0.3s ease, background 0.3s ease; will-change: transform;
}
.cta__chip:hover { color: var(--neutral-0); border-color: var(--signal); background: var(--ink-1); }

.cta__direct { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 14px 22px; margin-top: 6px; }
.cta__contact { display: inline-flex; align-items: center; gap: 9px; color: var(--neutral-1); font-size: 14px; font-weight: 500; transition: color 0.3s ease; }
.cta__contact:hover { color: var(--neutral-0); }
.cta__contact-k { font-family: var(--font-mono); color: var(--signal); font-size: 9px; padding: 3px 7px; border: 1px solid var(--line-2); }

/* =========================================================
   10. FOOTER (reveal)
   ========================================================= */
.footer {
  position: relative; z-index: 1;
  background: var(--ink-1);
  padding-block: clamp(68px, 9vw, 110px) 36px;
  border-top: 1px solid var(--line);
}
.footer__inner { display: grid; grid-template-columns: 1fr; gap: clamp(44px, 6vw, 80px); }
.footer__word {
  font-family: var(--font-disp); font-weight: 700;
  font-size: clamp(1.9rem, 5vw, 3.4rem); letter-spacing: -0.03em; line-height: 1.0; display: block;
}
.footer__tag { margin-top: 20px; color: var(--neutral-1); font-size: 15px; line-height: 1.6; max-width: 34ch; }
.footer__cols { display: grid; grid-template-columns: 1fr 1fr; gap: 40px 24px; }
.footer__col { display: flex; flex-direction: column; gap: 12px; align-items: flex-start; }
.footer__ct { color: var(--neutral-3); margin-bottom: 6px; }
.footer__col a { color: var(--neutral-1); font-size: 15px; transition: color 0.3s ease; }
.footer__col a:hover { color: var(--neutral-0); }
.footer__col a[aria-disabled="true"] { opacity: 0.65; }
.footer__legal { margin-top: clamp(40px, 6vw, 64px); padding-top: 28px; border-top: 1px solid var(--line); }
.footer__reg { display: flex; flex-wrap: wrap; gap: 8px 20px; color: var(--neutral-3); font-size: 12px; line-height: 1.7; }
.footer__reg b { color: var(--neutral-2); font-weight: 500; margin-right: 5px; }
.footer__reg a { color: var(--neutral-2); transition: color 0.3s ease; }
.footer__reg a:hover { color: var(--neutral-0); }
.footer__bottom {
  margin-top: clamp(48px, 7vw, 80px); padding-top: 28px; border-top: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 16px; align-items: flex-start; color: var(--neutral-3);
}
.footer__bottom .mono { color: var(--neutral-3); }
.footer__top { display: inline-flex; align-items: center; gap: 8px; color: var(--neutral-1); transition: color 0.3s ease; }
.footer__top:hover { color: var(--neutral-0); }
.footer__top i { transition: transform 0.4s var(--e-out); }
.footer__top:hover i { transform: translateY(-3px); }

.br-m { display: inline; }

/* =========================================================
   MOTION prep (only when .anim-on)
   ========================================================= */
.anim-on [data-reveal],
.anim-on [data-reveal-item],
.anim-on [data-about-meta],
.anim-on [data-foot] { opacity: 0; }
.anim-on [data-hero-el] { opacity: 0; }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (min-width: 640px) {
  .footer__inner { grid-template-columns: 1.4fr 1fr; }
  .footer__bottom { flex-direction: row; justify-content: space-between; align-items: center; }
  .work__grid { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 768px) {
  .metrics__grid { grid-template-columns: repeat(3, 1fr); }

  /* asymmetric section head: title col 1-8 / meta col 10-12 (right) */
  .section-head__body { grid-column: 1 / 9; }
  .section-head__meta { grid-column: 10 / 13; justify-self: end; text-align: right; padding-top: 10px; }
  .section-head__meta .eyebrow { margin-bottom: 0; }
  .section-title { display: block; }
  .section-head--rev .section-head__body { grid-column: 5 / 13; text-align: right; }
  .section-head--rev .section-head__body .business__lead,
  .section-head--rev .section-head__body .principles__lead { margin-left: auto; }
  .section-head--rev .section-head__meta { grid-column: 1 / 4; justify-self: start; text-align: left; }

  .about { min-height: 100svh; display: flex; align-items: center; padding-block: 0; }
  .about__inner { width: 100%; }
  .about__watermark { top: 50%; }

  .bcard__grid { grid-template-columns: 1.15fr 0.85fr; align-items: center; gap: 48px; }
  .bcard__side { align-items: flex-end; text-align: left; }
  .step { grid-template-columns: 96px 1fr; gap: 44px; }
  .footer__cols { grid-template-columns: repeat(2, 1fr); }
  .br-m { display: none; }

  .stack-card { position: sticky; top: calc(var(--nav-h) + 5vh); margin-bottom: clamp(60px, 9vh, 120px); }
  .stack-card:nth-child(1) { top: calc(var(--nav-h) + 4vh); }
  .stack-card:nth-child(2) { top: calc(var(--nav-h) + 7vh); }
  .stack-card:nth-child(3) { top: calc(var(--nav-h) + 10vh); }
  .stack-card:last-child { margin-bottom: 0; }
}

@media (min-width: 1024px) {
  .nav__menu { display: flex; }
  .nav__cta { display: inline-flex; }
  .nav__burger { display: none; }
  .navmenu { display: none; }
  .hero__foot { flex-direction: row; align-items: flex-end; justify-content: space-between; gap: 48px; }
  .hero__sub { max-width: 40ch; }
  .work__grid { grid-template-columns: repeat(3, 1fr); }
  .bcard__inner { min-height: clamp(420px, 54vh, 540px); }
}

@media (min-width: 1440px) {
  .about__statement { max-width: 32em; }
}

/* =========================================================
   REDUCED MOTION
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .anim-on [data-reveal],
  .anim-on [data-reveal-item],
  .anim-on [data-about-meta],
  .anim-on [data-foot],
  .anim-on [data-hero-el] { opacity: 1; }
  .about .hl-word { color: var(--neutral-0); }
  .hero__scroll i::after { display: none; }
  .hero__webgl { display: none; }
  .cursor { display: none !important; }
}

/* touch: hide custom cursor */
@media (hover: none), (pointer: coarse) {
  .cursor { display: none !important; }
}

/* =========================================================
   MULTI-PAGE EXTENSION  (subpages; re-skinned to v3 palette)
   Class names preserved; glows neutralized; tokens re-pointed.
   ========================================================= */

/* ---- nav: Services dropdown (float glass retained) ---- */
.nav__item--sub { position: relative; display: flex; align-items: center; }
.nav__top {
  position: relative; display: inline-flex; align-items: center; gap: 7px;
  padding: 8px 14px; font-size: 14px; color: var(--neutral-1); transition: color 0.3s ease;
}
.nav__top span { position: relative; }
.nav__top span::after {
  content: ""; position: absolute; left: 0; bottom: -3px; width: 100%; height: 1px;
  background: var(--signal); transform: scaleX(0); transform-origin: right;
  transition: transform 0.4s var(--e-out);
}
.nav__item--sub:hover .nav__top,
.nav__item--sub:focus-within .nav__top { color: var(--neutral-0); }
.nav__item--sub:hover .nav__top span::after,
.nav__item--sub:focus-within .nav__top span::after { transform: scaleX(1); transform-origin: left; }
.nav__caret {
  width: 6px; height: 6px; margin-top: -3px;
  border-right: 1.4px solid currentColor; border-bottom: 1.4px solid currentColor;
  transform: rotate(45deg); opacity: 0.7; transition: transform 0.35s var(--e-out);
}
.nav__item--sub:hover .nav__caret,
.nav__item--sub:focus-within .nav__caret { transform: rotate(225deg); margin-top: 2px; }

.nav__panel {
  position: absolute; top: calc(100% + 10px); left: 50%; translate: -50% 0;
  min-width: 300px; padding: 10px;
  background: linear-gradient(180deg, rgba(30, 27, 23, 0.86), rgba(20, 18, 15, 0.82));
  backdrop-filter: blur(22px) saturate(140%); -webkit-backdrop-filter: blur(22px) saturate(140%);
  border: 1px solid var(--line-2);
  --cut: 12px;
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
  display: flex; flex-direction: column; gap: 2px;
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: opacity 0.35s var(--e-out), transform 0.35s var(--e-out), visibility 0.35s; z-index: 5;
}
.nav__item--sub:hover .nav__panel,
.nav__item--sub:focus-within .nav__panel { opacity: 1; visibility: visible; transform: none; }
.nav__panel::before { content: ""; position: absolute; left: 0; right: 0; top: -12px; height: 12px; }
.nav__panel a {
  display: flex; align-items: center; gap: 14px; padding: 11px 14px;
  color: var(--neutral-1); transition: background 0.3s ease, color 0.3s ease;
}
.nav__panel a:hover,
.nav__panel a[aria-current="page"] { background: rgba(234, 232, 227, 0.05); color: var(--neutral-0); }
.nav__panel a em { font-family: var(--font-mono); font-size: 11px; color: var(--signal); font-style: normal; letter-spacing: 0.1em; }
.nav__panel a > span { display: flex; flex-direction: column; gap: 3px; }
.nav__panel a b { font-weight: 500; font-size: 14.5px; letter-spacing: -0.01em; }
.nav__panel a small { font-size: 11.5px; color: var(--neutral-3); }

/* ---- service hero ---- */
.hero--svc { min-height: 78svh; }
.hero--svc .hero__title { font-size: clamp(2.8rem, 9vw, 6.6rem); }
.hero__crumb { display: inline-flex; align-items: center; gap: 10px; color: var(--neutral-3); margin-bottom: clamp(18px, 3vw, 30px); margin-right: 28px; }
.hero__crumb a { color: var(--neutral-1); transition: color 0.3s ease; }
.hero__crumb a:hover { color: var(--neutral-0); }
.hero__crumb i { font-style: normal; color: var(--neutral-3); }
.hero__crumb .cur { color: var(--signal); }

/* ---- service page section rhythm ---- */
.svc-block { position: relative; overflow: clip; padding-block: clamp(74px, 10vw, 130px); }
.svc-block + .svc-block { border-top: 1px solid var(--line); }
.svc-head { position: relative; margin-bottom: clamp(44px, 6vw, 76px); }
.svc-head__lead { margin-top: 26px; max-width: 48ch; color: var(--neutral-1); font-size: clamp(15px, 1.7vw, 18px); line-height: 1.65; }

.svc-problem::before { display: none; }
.svc-problem__lead {
  position: relative; font-weight: 600; letter-spacing: -0.025em; line-height: 1.4;
  font-size: clamp(1.35rem, 2.6vw, 2.3rem); max-width: 28em; margin-top: clamp(8px, 1vw, 14px);
}
.svc-problem .hl-word { color: rgba(234, 232, 227, 0.16); }

.offer { position: relative; display: grid; grid-template-columns: 1fr; gap: 1px; background: var(--line); }
.offer__card {
  position: relative; background: var(--ink-1);
  padding: clamp(26px, 3vw, 40px);
  display: flex; flex-direction: column; gap: 12px;
  min-height: clamp(180px, 20vw, 244px);
  transition: background 0.5s var(--e-out);
}
.offer__card::before { display: none; }
.offer__card:hover { background: var(--ink-2); }
.offer__num { font-family: var(--font-mono); color: var(--signal); font-size: 12px; letter-spacing: 0.16em; }
.offer__title { font-size: clamp(1.25rem, 2.2vw, 1.6rem); font-weight: 600; letter-spacing: -0.02em; }
.offer__desc { color: var(--neutral-1); font-size: clamp(14px, 1.5vw, 15.5px); line-height: 1.62; margin-top: 2px; }
.offer__note { margin-top: auto; padding-top: 14px; }
.offer__note .mono { color: var(--neutral-3); font-size: 10px; }
.offer__card--link { text-decoration: none; }
.offer__go { margin-top: auto; padding-top: 8px; display: inline-flex; align-items: center; gap: 8px; color: var(--neutral-1); font-size: 14px; font-weight: 500; transition: color 0.3s ease, gap 0.3s ease; }
.offer__card--link:hover .offer__go { color: var(--neutral-0); gap: 12px; }
.offer__go i { color: var(--signal); font-style: normal; transition: transform 0.35s var(--e-out); }
.offer__card--link:hover .offer__go i { transform: translateX(3px); }

.svc-cases::before { top: 20%; }

/* ---- nav active state ---- */
.nav__menu a[aria-current="page"] { color: var(--neutral-0); }
.nav__menu a[aria-current="page"] span::after { transform: scaleX(1); transform-origin: left; }
.navmenu__list a[aria-current="page"] { color: var(--signal); }

/* ---- work: case index ---- */
.case-index { position: relative; padding-block: clamp(26px, 4vw, 42px); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.case-index__row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.case-index__label { color: var(--neutral-3); margin-right: 6px; }
.case-index__chip {
  display: inline-flex; align-items: center; gap: 9px; padding: 8px 15px;
  --cut: 7px; border: 1px solid var(--line-2); color: var(--neutral-1); font-size: 13px; font-weight: 500;
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
  transition: color 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}
.case-index__chip em { font-family: var(--font-mono); font-size: 10px; color: var(--signal); font-style: normal; letter-spacing: 0.1em; }
.case-index__chip:hover { color: var(--neutral-0); border-color: var(--signal); background: var(--ink-1); }

/* ---- work: category filter ---- */
.case-filter { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: clamp(18px, 2.4vw, 28px); }
.case-filter__btn {
  display: inline-flex; align-items: center; gap: 9px; padding: 9px 16px;
  --cut: 7px;
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
  border: 1px solid var(--line-2); background: transparent;
  font-family: inherit; font-size: 13px; font-weight: 500; color: var(--neutral-2);
  cursor: pointer; transition: color 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}
.case-filter__btn em { font-family: var(--font-mono); font-size: 10px; font-style: normal; letter-spacing: 0.1em; color: var(--neutral-3); }
.case-filter__btn:hover { color: var(--neutral-0); border-color: var(--neutral-3); }
.case-filter__btn.is-active { color: var(--ink-0); background: var(--neutral-0); border-color: var(--neutral-0); }
.case-filter__btn.is-active em { color: var(--ink-2); }
.case-filter__btn:focus-visible { outline: 2px solid var(--signal); outline-offset: 2px; }

.case.is-filtered, .case-index__chip.is-filtered { display: none; }

/* ---- work: case section ---- */
.case { position: relative; overflow: clip; padding-block: clamp(74px, 11vw, 150px); border-top: 1px solid var(--line); scroll-margin-top: var(--nav-h); }
.case:first-of-type { border-top: 0; }
.case::before { display: none; }
.case__head { position: relative; margin-bottom: clamp(38px, 5vw, 66px); }
.case__meta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 16px; margin-bottom: 22px; }
.case__idx { font-family: var(--font-mono); color: var(--signal); }
.case__tag { color: var(--neutral-1); padding: 5px 11px; border: 1px solid var(--line-2); }
.case__lead { margin-top: 24px; max-width: 50ch; color: var(--neutral-1); font-size: clamp(15px, 1.7vw, 19px); line-height: 1.62; }
.case__grid { position: relative; display: grid; grid-template-columns: 1fr; gap: clamp(32px, 5vw, 60px); }
.case__visual {
  position: relative; aspect-ratio: 16 / 10; overflow: hidden; border: 1px solid var(--line);
  --cut: 18px;
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
  background: linear-gradient(150deg, #1a1712, #100e0b);
}
.case__visual::before {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(234, 232, 227, 0.05) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(234, 232, 227, 0.05) 1px, transparent 1px);
  background-size: 40px 40px;
  -webkit-mask-image: radial-gradient(82% 82% at 50% 50%, #000 30%, transparent 84%);
  mask-image: radial-gradient(82% 82% at 50% 50%, #000 30%, transparent 84%);
  opacity: 0.5;
}
.case__visual::after {
  content: ""; position: absolute; inset: 0; mix-blend-mode: screen;
  background:
    radial-gradient(120% 120% at 18% 12%, hsl(var(--h1) 60% 30%) 0%, transparent 56%),
    radial-gradient(120% 120% at 86% 92%, hsl(var(--h2) 56% 26%) 0%, transparent 56%);
  opacity: 0.55;
}
.case__visual-idx { position: absolute; top: 16px; left: 18px; z-index: 1; font-family: var(--font-disp); font-weight: 600; letter-spacing: -0.03em; font-size: clamp(2.6rem, 6vw, 4.2rem); color: rgba(234, 232, 227, 0.14); }
.case__visual-label { position: absolute; bottom: 18px; left: 18px; z-index: 1; color: rgba(234, 232, 227, 0.42); }
.case__tags { margin-top: 26px; }
.case__tags-label { display: block; color: var(--neutral-3); margin-bottom: 14px; }
.case__tags ul { display: flex; flex-wrap: wrap; gap: 8px; }
.case__tags li { padding: 7px 13px; border: 1px solid var(--line-2); color: var(--neutral-1); font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.04em; }
.case__body { display: flex; flex-direction: column; gap: clamp(26px, 4vw, 42px); }
.case__phase { position: relative; }
.case__phase-k { display: inline-flex; align-items: center; gap: 9px; color: var(--signal); margin-bottom: 14px; }
.case__phase-t { font-size: clamp(1.3rem, 2.6vw, 1.9rem); font-weight: 600; letter-spacing: -0.02em; line-height: 1.2; }
.case__phase-d { margin-top: 12px; color: var(--neutral-1); font-size: clamp(15px, 1.6vw, 17px); line-height: 1.7; max-width: 56ch; }
.case__metrics { border: 1px solid var(--line); padding: clamp(22px, 3vw, 32px); background: var(--ink-1); }
.case__metrics-label { display: block; color: var(--neutral-3); margin-bottom: 20px; }
.case__metrics-grid { display: grid; grid-template-columns: 1fr; gap: 18px; }
.case__metric { display: flex; flex-direction: column; align-items: flex-start; gap: 9px; }
.case__metric-v { font-family: var(--font-disp); font-weight: 600; letter-spacing: -0.01em; font-size: clamp(1.4rem, 2.4vw, 1.8rem); color: var(--signal); }
.case__metric-v.is-todo { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--neutral-3); border: 1px dashed var(--line-2); padding: 6px 10px; }
.case__metric-k { color: var(--neutral-1); font-size: 14px; line-height: 1.5; }
.case__foot { position: relative; margin-top: clamp(40px, 6vw, 72px); display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px; padding-top: 28px; border-top: 1px solid var(--line); }
.case__back { display: inline-flex; align-items: center; gap: 10px; color: var(--neutral-1); font-size: 14px; font-weight: 500; transition: color 0.3s ease, gap 0.3s ease; }
.case__back:hover { color: var(--neutral-0); gap: 14px; }
.case__back i { color: var(--signal); font-style: normal; }
.case__pager { display: flex; flex-wrap: wrap; gap: 10px; }
.case__pager-link { display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px; border: 1px solid var(--line-2); color: var(--neutral-1); font-size: 13px; font-weight: 500; transition: color 0.3s ease, border-color 0.3s ease; }
.case__pager-link:hover { color: var(--neutral-0); border-color: var(--signal); }
.case__pager-link i { color: var(--signal); font-style: normal; }

.preloader--lite .preloader__inner { gap: 14px; }

/* =========================================================
   MULTI-PAGE — responsive
   ========================================================= */
@media (min-width: 640px) {
  .offer { grid-template-columns: 1fr 1fr; }
  .pillars { grid-template-columns: 1fr 1fr; }
  .case__metrics-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 768px) {
  .svc-cases .work__grid { grid-template-columns: 1fr 1fr; }
  .case__grid { grid-template-columns: 0.92fr 1.08fr; gap: clamp(40px, 5vw, 80px); align-items: start; }
  .case__aside { position: sticky; top: calc(var(--nav-h) + 4vh); }
}
@media (min-width: 900px) {
  .axes .offer { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1024px) {
  .pillars { grid-template-columns: repeat(4, 1fr); }
}

@media (prefers-reduced-motion: reduce) {
  .svc-problem .hl-word { color: var(--neutral-0); }
}

/* =========================================================
   SERVICE FLOW — dark-context steps (proptech / ax)
   Base .step* colours are ink (for the light .process invert);
   on the dark flow they must switch to the neutral ramp so the
   copy stays readable. The light flow (solutions) keeps .process.
   ========================================================= */
.svc-flow:not(.process) .steps { border-top-color: var(--line-2); }
.svc-flow:not(.process) .step { border-bottom-color: var(--line); }
.svc-flow:not(.process) .step:hover { background: rgba(234, 232, 227, 0.02); }
.svc-flow:not(.process) .step__title { color: var(--neutral-0); }
.svc-flow:not(.process) .step__title em { color: var(--neutral-2); }
.svc-flow:not(.process) .step__desc { color: var(--neutral-1); }

/* light-invert flow reuses .process; its head sits inside .process
   so eyebrow/title colours are already re-scoped by the .process block */
.svc-flow.process { border-top: 0; }

/* lead paragraph inside a light-invert head must read as ink-on-paper */
.process .principles__lead { color: rgba(12, 11, 9, 0.62); }

/* rev section-head: keep the offset problem statement left-read */
.section-head--rev .section-head__body .svc-problem__lead { margin-left: auto; text-align: left; }

/* =========================================================
   WORK — alternating case layout (visual aside flips side)
   ========================================================= */
@media (min-width: 768px) {
  .case--r .case__grid { grid-template-columns: 1.08fr 0.92fr; }
  .case--r .case__aside { order: 2; }
  .case--r .case__body { order: 1; }
}

/* =========================================================
   PAGE TRANSITION CURTAIN  (internal .html navigation)
   Exit  : curtain wipes UP to cover (0.5s) → location change.
   Arrival: the lite preloader wipes UP to reveal (curtain-in),
            so the motion reads as one continuous upward wipe.
   Built + driven in the full-motion path only; reduced-motion
   and no-GSAP paths navigate natively (instant).
   ========================================================= */
.curtain {
  position: fixed; inset: 0; z-index: 1200; pointer-events: none;
  background: var(--ink-0);
  display: grid; place-items: center;
  transform: translateY(100%); will-change: transform;
}
.curtain.is-active { pointer-events: auto; }
.curtain__mark {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.34em;
  text-transform: uppercase; color: var(--neutral-2);
  opacity: 0; transform: translateY(8px);
}
.curtain.is-active .curtain__mark {
  opacity: 1; transform: none;
  transition: opacity 0.42s var(--e-out) 0.1s, transform 0.42s var(--e-out) 0.1s;
}
@media (prefers-reduced-motion: reduce) {
  .curtain { display: none !important; }
}

/* =========================================================
   LEGAL PAGE (개인정보처리방침 등 — 모션 없는 정적 문서)
   ========================================================= */
.legal-page { padding-top: calc(var(--nav-h) + clamp(48px, 8vw, 110px)); padding-bottom: clamp(64px, 8vw, 120px); }
.legal-page__title {
  font-family: var(--font-disp); font-weight: 800; letter-spacing: -0.02em; line-height: 1.05;
  font-size: clamp(2.2rem, 5vw, 4rem); margin: 14px 0 clamp(20px, 3vw, 34px);
}
.legal-page__lead { color: var(--neutral-1); font-size: clamp(15px, 1.4vw, 17px); line-height: 1.75; max-width: 34em; }
.legal-block { margin-top: clamp(38px, 5vw, 62px); border-top: 1px solid var(--line); padding-top: clamp(20px, 2.4vw, 30px); }
.legal-block h2 {
  font-family: var(--font-disp); font-weight: 700; letter-spacing: -0.015em;
  font-size: clamp(1.15rem, 1.8vw, 1.5rem); margin-bottom: 16px;
}
.legal-block p, .legal-block li { color: var(--neutral-2); font-size: 15px; line-height: 1.8; max-width: 40em; }
.legal-block p + p { margin-top: 12px; }
.legal-block ul { list-style: none; margin: 12px 0; }
.legal-block li { position: relative; padding-left: 16px; margin-bottom: 8px; }
.legal-block li::before { content: ""; position: absolute; left: 0; top: 12px; width: 5px; height: 5px; background: var(--signal); }
.legal-block b { color: var(--neutral-1); font-weight: 600; }
.legal-block a { color: var(--neutral-0); text-decoration: underline; text-underline-offset: 3px; }
.legal-block__contact { display: flex; flex-wrap: wrap; gap: 10px 28px; }
.legal-page__back { margin-top: clamp(44px, 6vw, 72px); }
.legal-page__foot { border-top: 1px solid var(--line); padding-block: 34px; }
.legal-page__foot .footer__reg { margin-bottom: 12px; }
.footer__privacy { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.06em; color: var(--neutral-2); transition: color 0.3s ease; }
.footer__privacy:hover { color: var(--neutral-0); }

/* =========================================================
   CLIENTS — 익명 실적 그리드 (work.html)
   ========================================================= */
.clients { position: relative; padding-block: clamp(80px, 11vw, 160px); border-top: 1px solid var(--line); }
.clients__lead { margin-top: 20px; color: var(--neutral-2); font-size: clamp(15px, 1.5vw, 17px); line-height: 1.7; max-width: 34em; }
.clients__grid {
  margin-top: clamp(40px, 5vw, 68px);
  display: grid; grid-template-columns: 1fr; gap: 1px;
  background: var(--line); border: 1px solid var(--line);
}
.cwork {
  background: var(--ink-0); padding: clamp(24px, 2.4vw, 34px);
  display: flex; flex-direction: column; gap: 10px;
  transition: background 0.4s ease;
}
.cwork:hover { background: var(--ink-1); }
.cwork__cat { font-size: 10px; letter-spacing: 0.14em; color: var(--signal); text-transform: uppercase; }
.cwork__title { font-family: var(--font-disp); font-weight: 700; letter-spacing: -0.015em; font-size: clamp(1.05rem, 1.5vw, 1.32rem); }
.cwork__desc { color: var(--neutral-2); font-size: 14px; line-height: 1.7; }
@media (min-width: 700px)  { .clients__grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1100px) { .clients__grid { grid-template-columns: repeat(3, 1fr); } }

/* ---- cwork 스크린샷 썸네일 (카드 상단 풀블리드 + 다크 톤) ---- */
.cwork__thumb {
  position: relative; overflow: hidden;
  margin: calc(clamp(24px, 2.4vw, 34px) * -1) calc(clamp(24px, 2.4vw, 34px) * -1) clamp(8px, 1.1vw, 12px);
  aspect-ratio: 16 / 9; background: #100e0b;
  border-bottom: 1px solid var(--line);
}
.cwork__thumb img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: top center;
  filter: saturate(0.82) brightness(0.7) contrast(1.03);
  transition: transform 0.7s var(--e-out), filter 0.6s ease;
}
.cwork:hover .cwork__thumb img { transform: scale(1.04); filter: saturate(0.96) brightness(0.84) contrast(1.03); }
.cwork__thumb::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(180deg, rgba(12, 11, 9, 0) 46%, rgba(12, 11, 9, 0.62) 100%),
    radial-gradient(130% 100% at 80% 92%, hsl(224 55% 26% / 0.28) 0%, transparent 62%);
}

/* ---- 파트너 로고 마퀴 ---- */
.marquee--logo .marquee__row { display: flex; align-items: center; gap: clamp(48px, 6vw, 96px); }
.plogo { flex: 0 0 auto; display: flex; align-items: center; }
.plogo img {
  /* 높이 고정 + 폭 auto — 비율이 제각각이어도 잘리지 않고 한 줄 높이에 정렬된다.
     세로가 있는 로고가 max-width에 걸려 컨테이너를 넘던 문제를 해결 */
  height: clamp(24px, 2.7vw, 32px); width: auto; max-width: 240px;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.42; transition: opacity 0.4s ease;
}
.marquee--logo:hover .plogo img { opacity: 0.75; }
.plogo--tall img { height: clamp(38px, 4.2vw, 52px); }

/* =========================================================
   DEVICE MOCKUP — 케이스 메인 비주얼 (맥북 + 아이폰)
   실제 스크린샷이 준비되면 .mock__mac-screen / .mock__phone-screen
   내부 UI를 <img>로 교체하면 된다.
   ========================================================= */
.case__visual--mock { background: radial-gradient(120% 120% at 30% 0%, #17140f, #0d0b09 70%); }
.mock { position: absolute; inset: 0; display: grid; place-items: center; }

/* ---- 맥북 ---- */
.mock__mac { position: relative; width: 74%; margin-right: 8%; }
.mock__mac-screen {
  position: relative; aspect-ratio: 16 / 10; border-radius: 10px 10px 2px 2px;
  background: #0a0a0c; border: 2px solid #2a2722; overflow: hidden;
  box-shadow: 0 24px 50px -20px rgba(0,0,0,0.7);
}
.mock__mac-screen img { width: 100%; height: 100%; object-fit: cover; display: block; }
.mock__mac-base {
  height: 10px; margin: 0 -9%; border-radius: 0 0 12px 12px;
  background: linear-gradient(#26231e, #17140f); border: 1px solid #2a2722; border-top: none;
  position: relative;
}
.mock__mac-base::after { content: ""; position: absolute; top: 0; left: 50%; transform: translateX(-50%); width: 16%; height: 4px; border-radius: 0 0 6px 6px; background: #100e0b; }

/* 맥 내부 UI 스켈레톤 */
.ui { position: absolute; inset: 0; display: flex; flex-direction: column; background: #0e0d10; }
.ui__top { height: 15%; display: flex; align-items: center; gap: 5px; padding: 0 10px; border-bottom: 1px solid rgba(255,255,255,0.06); }
.ui__dot { width: 6px; height: 6px; border-radius: 50%; background: rgba(255,255,255,0.18); }
.ui__bar { margin-left: 10px; height: 8px; flex: 0 0 34%; border-radius: 3px; background: rgba(255,255,255,0.07); }
.ui__body { flex: 1; display: flex; }
.ui__side { flex: 0 0 22%; padding: 10px 8px; display: flex; flex-direction: column; gap: 8px; border-right: 1px solid rgba(255,255,255,0.06); }
.ui__side span { height: 7px; border-radius: 3px; background: rgba(255,255,255,0.08); }
.ui__side span:first-child { background: var(--signal); opacity: 0.7; }
.ui__main { flex: 1; padding: 12px; display: flex; flex-direction: column; gap: 9px; }
.ui__row { display: flex; align-items: center; gap: 8px; padding: 8px; border-radius: 6px; background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.05); }
.ui__thumb { flex: 0 0 22px; height: 22px; border-radius: 5px; background: linear-gradient(135deg, rgba(59,91,255,0.5), rgba(59,91,255,0.12)); }
.ui__lines { flex: 1; display: flex; flex-direction: column; gap: 5px; }
.ui__lines i { height: 6px; border-radius: 3px; background: rgba(255,255,255,0.12); }
.ui__lines i:last-child { width: 55%; background: rgba(255,255,255,0.06); }
.ui__tag { font-family: var(--font-mono); font-size: 7px; letter-spacing: 0.04em; color: rgba(255,255,255,0.4); padding: 3px 6px; border-radius: 20px; border: 1px solid rgba(255,255,255,0.12); white-space: nowrap; }
.ui__tag--on { color: var(--ink-0); background: var(--signal); border-color: var(--signal); }

/* ---- 아이폰 (맥북 위에 겹침) ---- */
.mock__phone { position: absolute; right: 4%; bottom: 6%; width: 20%; }
.mock__phone-screen {
  position: relative; aspect-ratio: 9 / 19; border-radius: 16px;
  background: #0a0a0c; border: 3px solid #2a2722; overflow: hidden;
  box-shadow: 0 18px 36px -12px rgba(0,0,0,0.8);
}
.mock__phone-screen img { width: 100%; height: 100%; object-fit: cover; display: block; }
.mui { position: absolute; inset: 0; background: #0e0d10; padding: 14px 8px 8px; display: flex; flex-direction: column; gap: 7px; }
.mui__notch { position: absolute; top: 5px; left: 50%; transform: translateX(-50%); width: 34%; height: 6px; border-radius: 6px; background: #000; }
.mui__hd { display: flex; align-items: center; gap: 6px; margin-bottom: 2px; }
.mui__hd i { width: 14px; height: 14px; border-radius: 5px; background: var(--signal); opacity: 0.7; }
.mui__hd span { flex: 1; height: 6px; border-radius: 3px; background: rgba(255,255,255,0.1); }
.mui__card { padding: 8px 7px; border-radius: 7px; background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.06); display: flex; flex-direction: column; gap: 5px; }
.mui__card i { height: 5px; border-radius: 3px; background: rgba(255,255,255,0.1); }
.mui__card i:last-child { width: 60%; background: rgba(255,255,255,0.05); }
.mui__k { font-family: var(--font-mono); font-size: 6.5px; color: rgba(255,255,255,0.42); letter-spacing: 0.06em; }
.mui__card--on { border-color: rgba(59,91,255,0.5); background: rgba(59,91,255,0.08); }
.mui__card--on .mui__k { color: var(--signal); }

@media (max-width: 700px) { .mock__phone { width: 26%; right: 2%; } }

/* 텍스트 워드마크 — 로고 이미지가 없는 실적(공공 행사·캠페인)을 마퀴에 표기 */
.plogo--text {
  font-family: var(--font-sans); font-weight: 700; letter-spacing: -0.01em;
  font-size: clamp(15px, 1.5vw, 19px); color: var(--neutral-0);
  white-space: nowrap; opacity: 0.42; transition: opacity 0.4s ease;
}
.marquee--logo:hover .plogo--text { opacity: 0.75; }

/* 규모 상위 클라이언트 — 살짝 크게 + 불투명도 높여 먼저 눈에 들어오게 */
.plogo--lg img { height: clamp(30px, 3.4vw, 42px); }
.plogo--lg.plogo--text { font-size: clamp(17px, 1.8vw, 23px); }
.plogo--lg img, .plogo--lg.plogo--text { opacity: 0.6; }
.marquee--logo:hover .plogo--lg img, .marquee--logo:hover .plogo--lg.plogo--text { opacity: 0.9; }

/* =========================================================
   LANDING PAGE — 당근 광고용 제작 접수 (start.html)
   모바일 퍼스트 · WebGL/프리로더 없음
   ========================================================= */
.lp { background: var(--ink-0); }
.lp .nav { position: sticky; background: rgba(12,11,9,0.88); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
.lp__main section { padding-block: clamp(56px, 9vw, 110px); }
.lp-h2 {
  font-family: var(--font-disp); font-weight: 700; letter-spacing: -0.02em; line-height: 1.14;
  font-size: clamp(1.7rem, 4.6vw, 3rem); margin-top: 16px;
}

/* hero */
.lp-hero { padding-top: clamp(64px, 12vw, 140px) !important; }
.lp-hero__title { font-family: var(--font-disp); font-weight: 800; letter-spacing: -0.02em; line-height: 1.06; font-size: clamp(2.2rem, 7.4vw, 4.6rem); margin-top: 18px; }
.lp-hero__title .l { display: block; }
.lp-hero__title em { font-style: normal; color: var(--signal); }
.lp-hero__sub { margin-top: 22px; color: var(--neutral-1); font-size: clamp(15px, 1.6vw, 18px); line-height: 1.7; }
.lp-hero__cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.lp-hero__note { margin-top: 18px; color: var(--neutral-3); font-size: 11px; }

/* trust */
.lp-trust { border-block: 1px solid var(--line); padding-block: clamp(30px, 5vw, 48px) !important; }
.lp-trust__nums { display: flex; flex-wrap: wrap; gap: clamp(24px, 5vw, 64px); }
.lp-trust__nums b { font-family: var(--font-disp); font-weight: 700; font-size: clamp(1.5rem, 3.4vw, 2.2rem); display: block; }
.lp-trust__nums span { color: var(--neutral-3); font-size: 12px; }
.lp-trust__logos { display: flex; flex-wrap: wrap; align-items: center; gap: clamp(24px, 4vw, 48px); margin-top: 26px; }
.lp-trust__logos .plogo img { height: 24px; }

/* work */
.lp-work__grid { margin-top: clamp(28px, 4vw, 44px); }
.lp-work__more { display: inline-block; margin-top: 24px; color: var(--neutral-1); font-size: 14px; border-bottom: 1px solid var(--line-2); padding-bottom: 3px; transition: color 0.3s ease; }
.lp-work__more:hover { color: var(--neutral-0); }

/* pricing */
.lp-price { border-top: 1px solid var(--line); }
.lp-price__grid { display: grid; grid-template-columns: 1fr; gap: 14px; margin-top: clamp(28px, 4vw, 44px); }
.lp-plan {
  position: relative; padding: clamp(22px, 3vw, 32px); border: 1px solid var(--line-2); background: var(--ink-1);
  --cut: 12px;
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
}
.lp-plan--hot { border-color: var(--signal); background: rgba(59, 91, 255, 0.06); }
.lp-plan__badge { position: absolute; top: 14px; right: 16px; color: var(--signal); font-size: 10px; letter-spacing: 0.1em; }
.lp-plan__k { color: var(--neutral-3); font-size: 11px; letter-spacing: 0.1em; }
.lp-plan__price { margin-top: 12px; }
.lp-plan__price b { font-family: var(--font-disp); font-weight: 700; letter-spacing: -0.02em; font-size: clamp(1.9rem, 4.2vw, 2.6rem); }
.lp-plan__price span { color: var(--neutral-2); margin-left: 4px; font-size: 14px; }
.lp-plan__for { margin-top: 6px; color: var(--neutral-2); font-size: 13px; }
.lp-plan ul { list-style: none; margin-top: 18px; display: flex; flex-direction: column; gap: 9px; }
.lp-plan li { position: relative; padding-left: 16px; color: var(--neutral-1); font-size: 14px; line-height: 1.5; }
.lp-plan li::before { content: ""; position: absolute; left: 0; top: 8px; width: 5px; height: 5px; background: var(--signal); }
.lp-price__note { margin-top: 18px; color: var(--neutral-3); font-size: 11px; line-height: 1.7; }

/* flow */
.lp-flow { border-top: 1px solid var(--line); }
.lp-flow__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 26px; }
.lp-flow__step { padding: 18px; border: 1px solid var(--line); background: var(--ink-1); }
.lp-flow__step em { color: var(--signal); font-size: 11px; letter-spacing: 0.12em; display: block; }
.lp-flow__step b { display: block; margin-top: 8px; font-size: 16px; }
.lp-flow__step span { display: block; margin-top: 5px; color: var(--neutral-2); font-size: 12.5px; line-height: 1.5; }

/* form */
.lp-apply { border-top: 1px solid var(--line); }
.lp-form { margin-top: clamp(28px, 4vw, 44px); display: flex; flex-direction: column; gap: 16px; max-width: 720px; }
.lp-form__row { display: grid; grid-template-columns: 1fr; gap: 16px; }
.lp-form label { display: flex; flex-direction: column; gap: 8px; font-size: 13px; color: var(--neutral-2); }
.lp-form input, .lp-form select, .lp-form textarea {
  font-family: inherit; font-size: 15px; color: var(--neutral-0);
  background: var(--ink-1); border: 1px solid var(--line-2); padding: 13px 14px; border-radius: 0;
  transition: border-color 0.3s ease;
  -webkit-appearance: none; appearance: none;
}
.lp-form input:focus, .lp-form select:focus, .lp-form textarea:focus { outline: none; border-color: var(--signal); }
.lp-form ::placeholder { color: var(--neutral-3); }
.lp-form__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.lp-form__note { color: var(--neutral-3); font-size: 11px; }

/* faq */
.lp-faq { border-top: 1px solid var(--line); }
.lp-faq__item { border-bottom: 1px solid var(--line); }
.lp-faq__item summary {
  cursor: pointer; list-style: none; padding: 18px 0; font-size: 15.5px; font-weight: 600; color: var(--neutral-0);
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
}
.lp-faq__item summary::after { content: "+"; color: var(--signal); font-family: var(--font-mono); flex: 0 0 auto; }
.lp-faq__item[open] summary::after { content: "−"; }
.lp-faq__item p { padding: 0 0 18px; color: var(--neutral-2); font-size: 14px; line-height: 1.75; max-width: 38em; }

/* bottom cta */
.lp-bottom { border-top: 1px solid var(--line); text-align: left; }
.lp-bottom .btn { margin-top: 26px; }

@media (min-width: 760px) {
  .lp-form__row { grid-template-columns: 1fr 1fr; }
  .lp-price__grid { grid-template-columns: repeat(3, 1fr); }
  .lp-flow__grid { grid-template-columns: repeat(4, 1fr); }
}

/* hidden 속성은 어떤 display 지정보다 우선한다 */
[hidden] { display: none !important; }

/* ---- 랜딩 v2: 가독성·전환 우선 ---- */
.lp-label { color: var(--signal); font-size: 12px; letter-spacing: 0.18em; }
/* 본문 대비·크기 상향 — 당근 유입(모바일·고연령) 기준 */
.lp .lp-hero__sub { color: #D9D6D0; font-size: clamp(16px, 1.7vw, 19px); }
.lp .lp-plan__for, .lp .lp-flow__step span, .lp .lp-faq__item p { color: #BDBab4; }
.lp .lp-plan li { color: #D9D6D0; font-size: 15px; }
.lp .lp-form label { font-size: 14px; color: #BDBAB4; }

/* 히어로 가격 칩 */
.lp-hero__chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.lp-hero__chips a {
  padding: 9px 14px; border: 1px solid var(--line-2); background: var(--ink-1);
  font-size: 13.5px; color: #BDBAB4; transition: border-color 0.3s ease, color 0.3s ease;
}
.lp-hero__chips a b { color: var(--neutral-0); font-weight: 700; margin-left: 4px; }
.lp-hero__chips a:hover { border-color: var(--signal); color: var(--neutral-0); }

/* 포트폴리오 썸네일 */
.lp-shots { display: grid; grid-template-columns: 1fr; gap: 18px; margin-top: clamp(28px, 4vw, 44px); }
.lp-shot { margin: 0; }
.lp-shot img {
  width: 100%; aspect-ratio: 16 / 10; object-fit: cover; object-position: top;
  border: 1px solid var(--line-2); display: block;
}
.lp-shot figcaption { margin-top: 10px; font-size: 13.5px; color: #BDBAB4; }
.lp-shot figcaption b { color: var(--signal); font-weight: 600; margin-right: 8px; font-size: 12px; }

/* 모바일 하단 고정 접수 바 */
.lp-sticky {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 95;
  display: flex; gap: 10px; padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
  background: rgba(12, 11, 9, 0.92); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid var(--line);
}
.lp-sticky .btn { flex: 1; justify-content: center; }
.lp__main { padding-bottom: 76px; }
@media (min-width: 760px) {
  .lp-sticky { display: none; }
  .lp__main { padding-bottom: 0; }
  .lp-shots { grid-template-columns: repeat(2, 1fr); gap: 24px; }
}
@media (min-width: 1100px) { .lp-shots { grid-template-columns: repeat(3, 1fr); } }