/* ==========================================================================
   WORKSHIFT — design system  v2
   레퍼런스 감각: 넉넉한 여백 · 큰 타이트한 타이포 · 하이라인 보더 ·
   프로스티드 글래스 · 스프링 이징 · 절제된 색
   ========================================================================== */

@font-face { font-family: 'Pretendard'; font-weight: 400; font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/woff2/Pretendard-Regular.woff2') format('woff2'); }
@font-face { font-family: 'Pretendard'; font-weight: 500; font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/woff2/Pretendard-Medium.woff2') format('woff2'); }
@font-face { font-family: 'Pretendard'; font-weight: 600; font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/woff2/Pretendard-SemiBold.woff2') format('woff2'); }
@font-face { font-family: 'Pretendard'; font-weight: 700; font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/woff2/Pretendard-Bold.woff2') format('woff2'); }
@font-face { font-family: 'Pretendard'; font-weight: 800; font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/woff2/Pretendard-ExtraBold.woff2') format('woff2'); }

:root {
  /* --- ink & paper --- */
  --ink: #111114;
  --ink-2: #4a4a52;
  --ink-3: #67676f;   /* 보조 텍스트 — 흰 배경 대비 5.4:1 */
  --ink-4: #a9a9b2;
  --line: rgba(0, 0, 0, .09);
  --line-2: rgba(0, 0, 0, .05);
  --paper: #ffffff;
  --paper-2: #f5f5f7;
  --paper-3: #ebebef;
  --glass: rgba(255, 255, 255, .72);

  /* --- accent --- */
  --accent: #0a5cff;
  --accent-ink: #0043cc;
  --accent-soft: #eef3ff;
  --accent-line: rgba(10, 92, 255, .22);
  --on-accent: #ffffff;

  --warn: #c2410c;
  --warn-soft: #fef3ec;
  --ok: #04785a;
  --ok-soft: #e7f7f1;
  --danger: #c1272d;
  --danger-soft: #fdeeee;

  /* --- dark bands (항상 어두운 영역) --- */
  --night: #08080a;
  --night-2: #121216;
  --night-ink: #f5f5f7;
  --night-ink-2: #9a9aa4;
  --night-line: rgba(255, 255, 255, .12);

  /* --- categorical --- */
  --c1: #d4537e; --c2: #378add; --c3: #d85a30;
  --c4: #1d9e75; --c5: #534ab7; --c6: #ba7517;

  /* --- shape --- */
  --r-xs: 8px;
  --r-sm: 12px;
  --r: 16px;
  --r-lg: 22px;
  --r-xl: 30px;
  --pill: 980px;

  --sh-1: 0 1px 2px rgba(17, 17, 20, .04), 0 4px 12px rgba(17, 17, 20, .04);
  --sh-2: 0 2px 6px rgba(17, 17, 20, .05), 0 14px 36px rgba(17, 17, 20, .08);
  --sh-3: 0 8px 20px rgba(17, 17, 20, .08), 0 32px 72px rgba(17, 17, 20, .13);

  /* --- motion --- */
  --ease: cubic-bezier(.32, .72, 0, 1);
  --spring: cubic-bezier(.22, 1.2, .36, 1);
  --fast: .18s;
  --mid: .42s;
  --slow: .8s;

  --mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, monospace;
  --sans: 'Pretendard', -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Apple SD Gothic Neo', system-ui, sans-serif;
  --maxw: 1120px;
  --nav-h: 56px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #f2f2f5;
    --ink-2: #b0b0bb;
    --ink-3: #9b9ba7;   /* 다크 보조 텍스트 */
    --ink-4: #64646d;
    --line: rgba(255, 255, 255, .11);
    --line-2: rgba(255, 255, 255, .06);
    --paper: #0b0b0d;
    --paper-2: #141417;
    --paper-3: #1d1d21;
    --glass: rgba(16, 16, 19, .72);

    --accent: #6f9bff;
    --accent-ink: #9cbaff;
    --accent-soft: #131c33;
    --accent-line: rgba(111, 155, 255, .28);
    --on-accent: #071026;

    --warn: #f0916a;
    --warn-soft: #2a1a12;
    --ok: #48c39c;
    --ok-soft: #0f251f;
    --danger: #ee7d78;
    --danger-soft: #2b1616;

    --night: #000000;
    --night-2: #0d0d10;

    --c1: #e07fa1; --c2: #6fa9e6; --c3: #e5825d;
    --c4: #4dbb94; --c5: #7f77dd; --c6: #cf9843;

    --sh-1: 0 1px 2px rgba(0, 0, 0, .5);
    --sh-2: 0 2px 6px rgba(0, 0, 0, .5), 0 14px 36px rgba(0, 0, 0, .4);
    --sh-3: 0 8px 20px rgba(0, 0, 0, .5), 0 32px 72px rgba(0, 0, 0, .55);
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 88px; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  letter-spacing: -.011em;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  word-break: keep-all;
  overflow-wrap: break-word;
  overflow-x: hidden;
}
img, svg { max-width: 100%; }
a { color: inherit; }
h1, h2, h3, h4 { margin: 0; line-height: 1.14; font-weight: 700; letter-spacing: -.032em; }
p { margin: 0; }
ul, ol { margin: 0; padding-left: 1.05em; }
button, input, select, textarea { font: inherit; color: inherit; }
::selection { background: var(--accent); color: var(--on-accent); }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 26px; }
.narrow { max-width: 800px; }
.mono { font-family: var(--mono); font-size: .87em; font-variant-numeric: tabular-nums; letter-spacing: 0; }
.num { font-variant-numeric: tabular-nums; }
.muted { color: var(--ink-3); }
.center { text-align: center; }
.nowrap { white-space: nowrap; }

/* ---------------------------------------------------------------- nav */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  background: var(--glass);
  -webkit-backdrop-filter: saturate(180%) blur(24px);
  backdrop-filter: saturate(180%) blur(24px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--mid) var(--ease), background var(--mid) var(--ease), height var(--mid) var(--ease);
}
.nav.scrolled { border-bottom-color: var(--line); }
.nav-in { max-width: var(--maxw); margin: 0 auto; padding: 0 26px; height: 100%; display: flex; align-items: center; gap: 30px; }
.brand {
  display: flex; align-items: center; gap: 8px; text-decoration: none;
  font-weight: 700; letter-spacing: -.04em; font-size: 17px;
  transition: opacity var(--fast) var(--ease);
}
.brand:hover { opacity: .62; }
.brand-mark { width: 20px; height: 20px; flex: 0 0 20px; }
.nav-links { display: flex; gap: 26px; margin-left: auto; align-items: center; }
.nav-links a {
  text-decoration: none; font-size: 13.5px; font-weight: 500; color: var(--ink-2);
  position: relative; transition: color var(--fast) var(--ease);
}
.nav-links a:not(.btn)::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -5px; height: 1.5px;
  background: currentColor; transform: scaleX(0); transform-origin: left;
  transition: transform var(--mid) var(--ease);
}
.nav-links a:not(.btn):hover { color: var(--ink); }
.nav-links a:not(.btn):hover::after { transform: scaleX(1); }
.nav-links a.btn, .nav-links a.btn:hover { color: var(--on-accent); }
.nav-links a.btn-ghost, .nav-links a.btn-ghost:hover { color: var(--ink); }
@media (max-width: 900px) { .nav-links a:not(.btn) { display: none; } .nav-links { gap: 14px; } }

.body-pad { padding-top: var(--nav-h); }

/* scroll progress */
.progress {
  position: fixed; top: 0; left: 0; height: 2px; z-index: 110;
  background: var(--accent); width: 0; border-radius: 0 2px 2px 0;
  transition: width .1s linear; box-shadow: 0 0 12px var(--accent);
}

/* ---------------------------------------------------------------- buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 11px 22px; border-radius: var(--pill); border: 1px solid transparent;
  background: var(--accent); color: var(--on-accent);
  font-weight: 600; font-size: 15px; letter-spacing: -.01em;
  text-decoration: none; cursor: pointer; white-space: nowrap;
  transition: background var(--fast) var(--ease), transform .22s var(--spring), box-shadow var(--mid) var(--ease), opacity var(--fast);
}
.btn:hover { background: var(--accent-ink); transform: translateY(-1.5px); box-shadow: 0 6px 20px var(--accent-line); }
.btn:active { transform: scale(.97); box-shadow: none; }
.btn:disabled { opacity: .45; cursor: not-allowed; transform: none; box-shadow: none; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); box-shadow: none; }
.btn-ghost:hover { background: var(--paper-2); color: var(--ink); border-color: var(--ink-4); box-shadow: none; }
.btn-light { background: rgba(255, 255, 255, .14); color: #fff; border-color: rgba(255, 255, 255, .26); }
.btn-light:hover { background: rgba(255, 255, 255, .24); color: #fff; box-shadow: none; }
.btn-sm { padding: 7px 15px; font-size: 13px; }
.btn-lg { padding: 14px 30px; font-size: 16.5px; }
.btn-arrow svg { transition: transform var(--mid) var(--ease); }
.btn-arrow:hover svg { transform: translateX(3px); }

/* segmented control */
.seg { display: inline-flex; padding: 3px; background: var(--paper-3); border-radius: var(--pill); gap: 2px; }
.seg button {
  border: none; background: transparent; padding: 7px 16px; border-radius: var(--pill);
  font-size: 13.5px; font-weight: 600; color: var(--ink-3); cursor: pointer;
  transition: color var(--fast) var(--ease), background var(--mid) var(--ease), box-shadow var(--mid) var(--ease);
}
.seg button[aria-selected=true] { background: var(--paper); color: var(--ink); box-shadow: var(--sh-1); }
.seg button:hover:not([aria-selected=true]) { color: var(--ink-2); }

/* ---------------------------------------------------------------- hero */
.hero { background: var(--night); color: var(--night-ink); position: relative; overflow: hidden; isolation: isolate; }
.orb { position: absolute; border-radius: 50%; filter: blur(70px); opacity: .5; pointer-events: none; z-index: 0; }
.orb-1 { width: 620px; height: 620px; left: -8%; top: -22%; background: radial-gradient(circle, #0a5cff, transparent 68%); animation: drift1 22s var(--ease) infinite alternate; }
.orb-2 { width: 460px; height: 460px; right: -6%; top: 4%; background: radial-gradient(circle, #d85a30, transparent 68%); opacity: .3; animation: drift2 26s var(--ease) infinite alternate; }
.orb-3 { width: 400px; height: 400px; left: 42%; bottom: -18%; background: radial-gradient(circle, #534ab7, transparent 68%); opacity: .32; animation: drift3 30s var(--ease) infinite alternate; }
@keyframes drift1 { to { transform: translate3d(90px, 60px, 0) scale(1.15); } }
@keyframes drift2 { to { transform: translate3d(-70px, 90px, 0) scale(1.2); } }
@keyframes drift3 { to { transform: translate3d(60px, -60px, 0) scale(1.1); } }

.hero-in { position: relative; z-index: 1; padding: 130px 0 108px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px; font-size: 12.5px; font-weight: 600;
  letter-spacing: .01em; padding: 7px 15px; border-radius: var(--pill);
  border: 1px solid rgba(255, 255, 255, .18); background: rgba(255, 255, 255, .06); color: #e6ebf5;
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.eyebrow .live { width: 6px; height: 6px; border-radius: 50%; background: #4ade80; box-shadow: 0 0 0 0 rgba(74, 222, 128, .7); animation: pulse 2.4s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 8px rgba(74, 222, 128, 0); } 100% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0); } }

.hero h1 {
  font-size: clamp(40px, 6.6vw, 82px); font-weight: 800; letter-spacing: -.045em;
  margin: 28px 0 0; max-width: 17ch; line-height: 1.02;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(96deg, #7ba4ff 8%, #b9c9ff 52%, #ffb59b 100%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-sub { margin-top: 26px; font-size: clamp(16.5px, 1.55vw, 20px); color: var(--night-ink-2); max-width: 52ch; line-height: 1.62; }
.hero-sub b { color: #fff; font-weight: 600; }
.hero-cta { margin-top: 38px; display: flex; gap: 11px; flex-wrap: wrap; }

.hero-stats { margin-top: 76px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.hero-stat {
  padding: 24px 26px; border-radius: var(--r);
  background: rgba(255, 255, 255, .045); border: 1px solid var(--night-line);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  transition: background var(--mid) var(--ease), transform var(--mid) var(--spring);
}
.hero-stat:hover { background: rgba(255, 255, 255, .08); transform: translateY(-3px); }
.hero-stat b { display: block; font-size: 34px; font-weight: 700; letter-spacing: -.04em; line-height: 1; }
/* 직계 span 만 캡션이다 — 숫자(b) 안쪽 span 까지 잡으면 값이 두 줄로 깨진다 */
.hero-stat > span { display: block; margin-top: 9px; font-size: 13px; color: var(--night-ink-2); line-height: 1.5; }
@media (max-width: 760px) { .hero-stats { grid-template-columns: 1fr; } .hero-in { padding: 96px 0 72px; } }

/* ---------------------------------------------------------------- section */
.sec { padding: 128px 0; position: relative; }
.sec-alt { background: var(--paper-2); }
.sec-night { background: var(--night); color: var(--night-ink); }
.sec-night .lede, .sec-night .muted { color: var(--night-ink-2); }
.kicker {
  display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--accent);
}
.sec h2 { font-size: clamp(29px, 3.9vw, 47px); font-weight: 700; letter-spacing: -.038em; margin-top: 16px; max-width: 24ch; }
.sec .lede { margin-top: 20px; font-size: 18.5px; color: var(--ink-2); max-width: 58ch; line-height: 1.66; }
.sec-head-center { text-align: center; }
.sec-head-center h2, .sec-head-center .lede { margin-left: auto; margin-right: auto; }
@media (max-width: 760px) { .sec { padding: 84px 0; } }

/* ---------------------------------------------------------------- grid & card */
.grid { display: grid; gap: 18px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 980px) { .g3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 700px) { .g2, .g3 { grid-template-columns: 1fr; } }

.card {
  position: relative; background: var(--paper); border: 1px solid var(--line);
  border-radius: var(--r-lg); padding: 30px;
  transition: border-color var(--mid) var(--ease), box-shadow var(--slow) var(--ease), transform .5s var(--ease);
}
.card h3 { font-size: 20px; margin-bottom: 10px; letter-spacing: -.028em; }
.card p { color: var(--ink-2); font-size: 15.5px; line-height: 1.62; }
a.card { text-decoration: none; display: block; overflow: hidden; }
a.card:hover { border-color: var(--accent-line); box-shadow: var(--sh-2); transform: translateY(-4px); }

.card-num { font-family: var(--mono); font-size: 11.5px; color: var(--ink-3); font-weight: 600; letter-spacing: .08em; }
.card-go {
  margin-top: 18px; display: inline-flex; align-items: center; gap: 6px;
  font-size: 14px; font-weight: 600; color: var(--accent);
}
.card-go svg { transition: transform var(--mid) var(--ease); }
a.card:hover .card-go svg { transform: translateX(4px); }

/* 데모 카드 썸네일 */
.thumb {
  margin: -30px -30px 22px; aspect-ratio: 16 / 10; overflow: hidden;
  background: var(--paper-3); border-bottom: 1px solid var(--line);
  position: relative;
}
.thumb img { width: 100%; height: 100%; object-fit: cover; object-position: top center; display: block;
  transition: transform 1.1s var(--ease); }
a.card:hover .thumb img { transform: scale(1.035); }
.thumb::after {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(to bottom, transparent 62%, rgba(0, 0, 0, .05));
}
.thumb-tag {
  position: absolute; left: 12px; bottom: 11px; z-index: 2;
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 10px; border-radius: var(--pill);
  background: rgba(8, 8, 10, .68); color: #fff; font-size: 11px; font-weight: 600;
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  letter-spacing: .01em;
}
.thumb-tag .rec { width: 6px; height: 6px; border-radius: 50%; background: #ff5f57; animation: pulse2 1.8s infinite; }
@keyframes pulse2 { 50% { opacity: .35; } }

.badge {
  display: inline-flex; align-items: center; gap: 5px; padding: 3.5px 10px; border-radius: var(--pill);
  font-size: 11.5px; font-weight: 600; letter-spacing: -.005em;
  background: var(--paper-3); color: var(--ink-2); border: 1px solid transparent; white-space: nowrap;
}
.badge-accent { background: var(--accent-soft); color: var(--accent-ink); }
.badge-ok { background: var(--ok-soft); color: var(--ok); }
.badge-warn { background: var(--warn-soft); color: var(--warn); }
.badge-danger { background: var(--danger-soft); color: var(--danger); }
.badge-outline { background: transparent; border-color: var(--line); color: var(--ink-3); }
.tags { display: flex; gap: 6px; flex-wrap: wrap; }

/* ---------------------------------------------------------------- 실패 3 */
.fail { padding: 2px 0 2px 24px; border-left: 2px solid var(--line); transition: border-color var(--mid) var(--ease); }
.fail:hover { border-left-color: var(--warn); }
.fail-x { font-family: var(--mono); font-size: 11.5px; color: var(--warn); font-weight: 600; letter-spacing: .06em; }
.fail h3 { font-size: 19px; margin: 10px 0 9px; }
.fail p { color: var(--ink-2); font-size: 15.5px; }

.quote-box {
  margin-top: 52px; padding: 34px 38px; border-radius: var(--r-lg);
  background: var(--paper); border: 1px solid var(--line); box-shadow: var(--sh-1);
}
.quote-box p:first-child { font-size: 20px; font-weight: 600; letter-spacing: -.028em; line-height: 1.5; }
.sec-alt .quote-box { background: var(--paper); }

/* ---------------------------------------------------------------- 3단 */
.tier {
  display: flex; flex-direction: column; background: var(--paper);
  border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden;
  transition: transform .5s var(--ease), box-shadow var(--slow) var(--ease), border-color var(--mid);
}
.tier:hover { transform: translateY(-4px); box-shadow: var(--sh-2); }
.tier-head { padding: 28px 28px 24px; }
.tier-step { font-family: var(--mono); font-size: 11px; letter-spacing: .1em; color: var(--ink-3); font-weight: 600; }
.tier-head h3 { font-size: 22px; margin: 10px 0 9px; }
.tier-head p { font-size: 15px; color: var(--ink-2); line-height: 1.6; }
.tier-body { padding: 0 28px 28px; flex: 1; }
.tier-body dl { margin: 0; padding: 20px 0; border-top: 1px solid var(--line-2); border-bottom: 1px solid var(--line-2);
  display: grid; grid-template-columns: 68px 1fr; gap: 10px 14px; font-size: 14px; }
.tier-body dt { color: var(--ink-3); font-weight: 600; }
.tier-body dd { margin: 0; color: var(--ink-2); }
.tier-list { list-style: none; padding: 0; margin: 20px 0 0; display: grid; gap: 10px; }
.tier-list li { position: relative; padding-left: 22px; font-size: 14.5px; color: var(--ink-2); line-height: 1.55; }
.tier-list li::before {
  content: ''; position: absolute; left: 2px; top: 7px; width: 12px; height: 8px;
  border-left: 1.8px solid var(--accent); border-bottom: 1.8px solid var(--accent);
  transform: rotate(-45deg) scale(.85); border-radius: 1px;
}
.tier-featured { border-color: var(--accent-line); box-shadow: 0 0 0 1px var(--accent-line), var(--sh-2); }
.tier-featured .tier-head { background: linear-gradient(180deg, var(--accent-soft), transparent); }

/* ---------------------------------------------------------------- 업무 영역 */
.ref {
  border: 1px solid var(--line); border-radius: var(--r); padding: 22px 24px; background: var(--paper);
  transition: transform .45s var(--ease), box-shadow var(--slow) var(--ease);
}
.ref:hover { transform: translateY(-3px); box-shadow: var(--sh-1); }
.ref-top { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.ref h3 { font-size: 16.5px; letter-spacing: -.026em; }
.ref ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.ref li { font-size: 14px; color: var(--ink-2); padding-left: 14px; position: relative; line-height: 1.5; }
.ref li::before { content: ''; position: absolute; left: 2px; top: 9px; width: 4px; height: 4px; border-radius: 50%; background: var(--ink-4); }
.dot { width: 9px; height: 9px; border-radius: 50%; flex: 0 0 9px; display: inline-block; margin-left: auto; }

/* ---------------------------------------------------------------- 프로세스 */
.steps { margin-top: 56px; }
.step {
  display: grid; grid-template-columns: 104px 1fr; gap: 32px; padding: 32px 0;
  border-top: 1px solid var(--line); position: relative;
}
.step:last-child { border-bottom: 1px solid var(--line); }
.step-w { font-family: var(--mono); font-size: 12.5px; font-weight: 600; color: var(--accent); padding-top: 4px; letter-spacing: .04em; }
.step h3 { font-size: 20px; margin-bottom: 10px; }
.step p { color: var(--ink-2); font-size: 15.5px; line-height: 1.62; }
.step-out { margin-top: 14px; display: flex; flex-wrap: wrap; gap: 6px; }
@media (max-width: 640px) { .step { grid-template-columns: 1fr; gap: 10px; } }

/* ---------------------------------------------------------------- FAQ */
details.faq { border-bottom: 1px solid var(--line); }
details.faq summary {
  cursor: pointer; font-weight: 600; font-size: 17.5px; list-style: none;
  display: flex; gap: 16px; align-items: flex-start; padding: 24px 0;
  letter-spacing: -.024em; transition: color var(--fast);
}
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary:hover { color: var(--accent); }
details.faq summary .ic {
  margin-left: auto; flex: 0 0 auto; width: 20px; height: 20px; position: relative; margin-top: 3px;
}
details.faq summary .ic::before, details.faq summary .ic::after {
  content: ''; position: absolute; background: var(--ink-3); border-radius: 2px;
  transition: transform var(--mid) var(--ease), background var(--fast);
}
details.faq summary .ic::before { left: 0; top: 9px; width: 20px; height: 1.8px; }
details.faq summary .ic::after { left: 9px; top: 0; width: 1.8px; height: 20px; }
details.faq[open] summary .ic::after { transform: rotate(90deg); }
details.faq[open] summary .ic::before, details.faq[open] summary .ic::after { background: var(--accent); }
details.faq .ans { padding: 0 0 26px; color: var(--ink-2); font-size: 16px; line-height: 1.7; max-width: 68ch; }
details.faq[open] .ans { animation: faqIn var(--mid) var(--ease); }
@keyframes faqIn { from { opacity: 0; transform: translateY(-6px); } }

/* ---------------------------------------------------------------- form */
.form { display: grid; gap: 16px; }
.field { display: grid; gap: 7px; }
.field label { font-size: 13px; font-weight: 600; color: var(--ink-2); letter-spacing: -.005em; }
.field .req { color: var(--warn); }
input[type=text], input[type=email], select, textarea {
  width: 100%; padding: 12px 15px; border: 1px solid var(--line); border-radius: var(--r-sm);
  background: var(--paper); font-size: 15.5px;
  transition: border-color var(--fast) var(--ease), box-shadow var(--fast) var(--ease), background var(--fast);
}
select { -webkit-appearance: none; appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--ink-3) 50%), linear-gradient(135deg, var(--ink-3) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%; background-size: 5px 5px, 5px 5px; background-repeat: no-repeat; padding-right: 38px; }
textarea { resize: vertical; min-height: 100px; line-height: 1.6; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.form-note { font-size: 12.5px; color: var(--ink-3); }
.form-msg:empty { display: none; }
.form-msg { padding: 13px 17px; border-radius: var(--r-sm); font-size: 14.5px; font-weight: 500; animation: popIn .32s var(--spring); }
.form-msg-ok { background: var(--ok-soft); color: var(--ok); }
.form-msg-err { background: var(--danger-soft); color: var(--danger); }
@keyframes popIn { from { opacity: 0; transform: scale(.97) translateY(-4px); } }

/* ---------------------------------------------------------------- footer */
.foot { background: var(--night); color: var(--night-ink-2); padding: 76px 0 44px; font-size: 14px; }
.foot-in { display: grid; grid-template-columns: 1.7fr 1fr 1fr; gap: 44px; }
.foot a { text-decoration: none; color: var(--night-ink-2); transition: color var(--fast); }
.foot a:hover { color: #fff; }
.foot h4 { color: var(--night-ink); font-size: 11.5px; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 16px; font-weight: 600; }
.foot ul { list-style: none; padding: 0; display: grid; gap: 10px; }
.foot-bot { margin-top: 56px; padding-top: 26px; border-top: 1px solid var(--night-line);
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 12.5px; }
@media (max-width: 780px) { .foot-in { grid-template-columns: 1fr; gap: 32px; } }

/* ==========================================================================
   DEMO — 앱처럼 보이게
   ========================================================================== */
.demo-head { background: var(--night); color: var(--night-ink); padding: 64px 0 52px; position: relative; overflow: hidden; isolation: isolate; }
.demo-head .wrap { position: relative; z-index: 1; }
.crumb { font-size: 13px; color: var(--night-ink-2); display: flex; gap: 7px; align-items: center; }
.crumb a { color: var(--night-ink-2); text-decoration: none; transition: color var(--fast); }
.crumb a:hover { color: #fff; }
.demo-head h1 { font-size: clamp(30px, 4.2vw, 46px); font-weight: 700; margin: 16px 0 0; letter-spacing: -.042em; }
.demo-head .demo-sub { margin-top: 15px; color: var(--night-ink-2); font-size: 17.5px; max-width: 58ch; line-height: 1.58; }
.demo-head .demo-sub b { color: #fff; font-weight: 600; }
.proves {
  margin-top: 28px; padding: 18px 22px; border-radius: var(--r);
  background: rgba(255, 255, 255, .05); border: 1px solid var(--night-line);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  font-size: 14.5px; color: #cfd6e2; max-width: 76ch; line-height: 1.62;
}
.proves b { color: #fff; font-weight: 600; }

.demo-body { padding: 40px 0 110px; }

/* 앱 패널 */
.panel {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-lg);
  overflow: hidden; margin-bottom: 18px; box-shadow: var(--sh-1);
}
.panel-head {
  padding: 15px 20px; border-bottom: 1px solid var(--line);
  display: flex; align-items: center; gap: 11px; flex-wrap: wrap;
  background: linear-gradient(180deg, var(--paper-2), var(--paper));
}
.panel-head h2 { font-size: 15px; font-weight: 600; letter-spacing: -.022em; }
.panel-head .spacer { margin-left: auto; }
.panel-body { padding: 22px; }
.panel-body > * + * { margin-top: 16px; }
.panel-flush .panel-body { padding: 0; }

/* 트래픽 라이트 (앱 창 느낌) */
.win-dots { display: flex; gap: 6px; margin-right: 4px; }
.win-dots i { width: 10px; height: 10px; border-radius: 50%; display: block; }
.win-dots i:nth-child(1) { background: #ff5f57; }
.win-dots i:nth-child(2) { background: #febc2e; }
.win-dots i:nth-child(3) { background: #28c840; }

.io-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 880px) { .io-2 { grid-template-columns: 1fr; } }
textarea.code {
  font-family: var(--mono); font-size: 12.5px; line-height: 1.65; min-height: 210px;
  white-space: pre; background: var(--paper-2); border-radius: var(--r-sm);
}
textarea.tall { min-height: 300px; }

.run-bar {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  padding: 16px 20px; border-top: 1px solid var(--line);
  background: linear-gradient(0deg, var(--paper-2), var(--paper));
}
.run-note { font-size: 12.5px; color: var(--ink-3); line-height: 1.5; }

/* 단계 로딩 */
.stepper { display: grid; gap: 12px; }
.stepper-row { display: flex; align-items: center; gap: 12px; font-size: 14.5px; color: var(--ink-3); transition: color var(--mid) var(--ease); }
.stepper-row .dotwrap { width: 18px; height: 18px; flex: 0 0 18px; position: relative; }
.stepper-row .dotwrap i {
  position: absolute; inset: 4px; border-radius: 50%; background: var(--ink-4);
  transition: all var(--mid) var(--ease);
}
.stepper-row.active { color: var(--ink); font-weight: 600; }
.stepper-row.active .dotwrap i { inset: 0; background: var(--accent); box-shadow: 0 0 0 0 var(--accent-line); animation: ping 1.4s infinite; }
.stepper-row.done { color: var(--ink-3); }
.stepper-row.done .dotwrap i { inset: 2px; background: var(--ok); }
@keyframes ping { 70% { box-shadow: 0 0 0 9px rgba(10, 92, 255, 0); } 100% { box-shadow: 0 0 0 0 rgba(10, 92, 255, 0); } }

.shimmer {
  height: 12px; border-radius: 6px; background: var(--paper-3); position: relative; overflow: hidden;
}
.shimmer::after {
  content: ''; position: absolute; inset: 0; transform: translateX(-100%);
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .55), transparent);
  animation: sweep 1.4s infinite;
}
@media (prefers-color-scheme: dark) { .shimmer::after { background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .09), transparent); } }
@keyframes sweep { to { transform: translateX(100%); } }

.spin { width: 15px; height: 15px; border: 2px solid rgba(255, 255, 255, .32); border-top-color: currentColor; border-radius: 50%; animation: sp .68s linear infinite; }
@keyframes sp { to { transform: rotate(360deg); } }

.err { padding: 15px 19px; border-radius: var(--r-sm); background: var(--danger-soft); color: var(--danger); font-size: 14.5px; font-weight: 500; animation: popIn .3s var(--spring); }

/* KPI */
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(146px, 1fr)); gap: 10px; }
.kpi {
  background: var(--paper-2); border: 1px solid var(--line-2); border-radius: var(--r);
  padding: 17px 19px; transition: transform .4s var(--spring), background var(--mid);
}
.kpi:hover { transform: translateY(-2px); background: var(--paper-3); }
.kpi b { display: block; font-size: 27px; font-weight: 700; letter-spacing: -.038em; font-variant-numeric: tabular-nums; line-height: 1.1; }
.kpi span { display: block; margin-top: 6px; font-size: 12px; color: var(--ink-3); }
.kpi.bad b { color: var(--danger); }
.kpi.good b { color: var(--ok); }
.kpi.warn b { color: var(--warn); }

/* 표 */
table.tbl { width: 100%; border-collapse: collapse; font-size: 14px; }
table.tbl th, table.tbl td { text-align: left; padding: 12px 13px; border-bottom: 1px solid var(--line-2); vertical-align: top; }
table.tbl th {
  font-size: 11px; letter-spacing: .05em; text-transform: uppercase; color: var(--ink-3);
  font-weight: 700; background: var(--paper-2); white-space: nowrap; position: sticky; top: 0; z-index: 2;
  border-bottom-color: var(--line);
}
table.tbl tbody tr { transition: background var(--fast); }
table.tbl tbody tr:hover { background: var(--accent-soft); }
table.tbl td.r { text-align: right; font-variant-numeric: tabular-nums; font-family: var(--mono); font-size: 12.5px; }
.scroll-x { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r); max-height: 580px; overflow-y: auto; }
.scroll-x::-webkit-scrollbar { height: 9px; width: 9px; }
.scroll-x::-webkit-scrollbar-thumb { background: var(--ink-4); border-radius: 9px; opacity: .5; }
.scroll-x::-webkit-scrollbar-track { background: transparent; }

/* 순차 등장 — fill-mode both 로만 숨긴다. 애니메이션이 안 돌면 그냥 보인다. */
.stagger > * { animation: riseIn .55s var(--ease) both; }
tbody.stagger tr { animation: riseIn .5s var(--ease) both; }
@keyframes riseIn { from { opacity: 0; transform: translateY(9px); } to { opacity: 1; transform: none; } }

/* 막대 */
.bars { display: grid; gap: 9px; }
.bar-row { display: grid; grid-template-columns: 112px 1fr 76px; align-items: center; gap: 12px; font-size: 13.5px; }
.bar-row > span:first-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--ink-2); }
.bar-track { height: 8px; background: var(--paper-3); border-radius: var(--pill); overflow: hidden; }
.bar-fill { height: 100%; border-radius: var(--pill); width: 0; transition: width 1s var(--ease); }
.bar-val { text-align: right; font-variant-numeric: tabular-nums; color: var(--ink-3); font-size: 12.5px; }

blockquote.q {
  margin: 0; padding: 12px 16px; border-left: 2.5px solid var(--line);
  background: var(--paper-2); border-radius: 0 var(--r-xs) var(--r-xs) 0;
  font-size: 13.5px; color: var(--ink-2); font-family: var(--mono); line-height: 1.66;
}

.finding {
  border: 1px solid var(--line); border-radius: var(--r); padding: 20px 22px; background: var(--paper);
  transition: box-shadow var(--slow) var(--ease), transform .45s var(--ease);
}
.finding:hover { box-shadow: var(--sh-1); }
.finding + .finding { margin-top: 11px; }
.finding-top { display: flex; align-items: center; gap: 9px; flex-wrap: wrap; margin-bottom: 12px; }
.finding-loc { font-weight: 700; font-size: 15.5px; letter-spacing: -.024em; }
.finding h4 { font-size: 12px; color: var(--ink-3); margin: 15px 0 5px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; }
.finding p { font-size: 14.5px; color: var(--ink-2); line-height: 1.62; }
.lv-높음 { box-shadow: inset 3px 0 0 var(--danger); }
.lv-보통 { box-shadow: inset 3px 0 0 var(--warn); }
.lv-낮음 { box-shadow: inset 3px 0 0 var(--ink-4); }
.lv-ok { box-shadow: inset 3px 0 0 var(--ok); }

.chip {
  display: inline-flex; align-items: center; gap: 5px; padding: 4px 10px; border-radius: var(--r-xs);
  font-family: var(--mono); font-size: 11.5px; font-weight: 600; cursor: pointer;
  background: var(--accent-soft); color: var(--accent-ink); border: 1px solid transparent;
  transition: border-color var(--fast), transform .3s var(--spring);
}
.chip:hover { border-color: var(--accent); transform: translateY(-1px); }
.chip-plain { background: var(--paper-3); color: var(--ink-3); cursor: default; }
.chip-plain:hover { transform: none; border-color: transparent; }

.disclaimer {
  padding: 15px 19px; border-radius: var(--r-sm); background: var(--warn-soft);
  color: var(--warn); font-size: 13.5px; font-weight: 500; line-height: 1.55;
}

.cta-strip {
  margin-top: 44px; padding: 40px 44px; border-radius: var(--r-xl);
  background: var(--night); color: var(--night-ink);
  display: flex; align-items: center; gap: 26px; flex-wrap: wrap;
  position: relative; overflow: hidden; isolation: isolate;
}
.cta-strip::before {
  content: ''; position: absolute; inset: auto -10% -70% 40%; height: 150%; z-index: -1;
  background: radial-gradient(circle, rgba(10, 92, 255, .42), transparent 66%); filter: blur(46px);
}
.cta-strip h3 { font-size: 23px; letter-spacing: -.03em; }
.cta-strip p { color: var(--night-ink-2); font-size: 15px; margin-top: 8px; max-width: 60ch; }
.cta-strip .spacer { margin-left: auto; }

/* raw 조각 */
.raw-frag {
  border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; background: var(--paper);
  transition: box-shadow var(--mid) var(--ease), border-color var(--mid) var(--ease);
}
.raw-frag.hit { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.raw-frag-head { padding: 10px 14px; background: var(--paper-2); border-bottom: 1px solid var(--line-2);
  display: flex; gap: 9px; align-items: center; font-size: 12.5px; flex-wrap: wrap; }
.raw-frag-head .id { font-family: var(--mono); font-weight: 700; color: var(--accent); }
.raw-frag pre { margin: 0; padding: 15px; font-family: var(--mono); font-size: 12px; line-height: 1.68;
  white-space: pre-wrap; color: var(--ink-2); max-height: 250px; overflow: auto; }

.wiki-doc { border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.wiki-fm { padding: 17px 20px; background: var(--paper-2); font-family: var(--mono); font-size: 12.5px;
  line-height: 1.85; border-bottom: 1px solid var(--line); }
.wiki-fm .k { color: var(--ink-3); }
.wiki-sec { padding: 20px; border-bottom: 1px solid var(--line-2); transition: background var(--fast); }
.wiki-sec:last-child { border-bottom: none; }
.wiki-sec:hover { background: var(--paper-2); }
.wiki-sec h4 { font-size: 16px; margin-bottom: 9px; letter-spacing: -.026em; }
.wiki-sec .body { font-size: 14.5px; color: var(--ink-2); white-space: pre-wrap; line-height: 1.66; }
.wiki-sec .srcs { margin-top: 12px; display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }

/* 채팅 */
.chat { display: grid; gap: 14px; }
.bubble { max-width: 82%; padding: 14px 18px; border-radius: var(--r-lg); font-size: 15.5px; line-height: 1.66;
  animation: riseIn .45s var(--ease) both; }
.bubble-me { margin-left: auto; background: var(--accent); color: var(--on-accent); border-bottom-right-radius: 6px; }
.bubble-ai { background: var(--paper-2); border: 1px solid var(--line-2); border-bottom-left-radius: 6px; }
.cites { margin-top: 14px; display: grid; gap: 8px; }
.cite { border: 1px solid var(--line); border-radius: var(--r-xs); overflow: hidden; background: var(--paper); }
.cite-head { padding: 8px 12px; background: var(--paper-3); font-size: 11.5px; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.cite-head .id { font-family: var(--mono); font-weight: 700; color: var(--accent); }
.cite-body { padding: 12px; font-size: 13px; color: var(--ink-2); line-height: 1.68; }
.cite-body mark { background: var(--accent-soft); color: var(--ink); padding: 1px 3px; border-radius: 3px; font-weight: 500; }
.suggests { display: flex; gap: 7px; flex-wrap: wrap; }
.suggest {
  padding: 8px 14px; border-radius: var(--pill); border: 1px solid var(--line); background: var(--paper);
  font-size: 13.5px; cursor: pointer; color: var(--ink-2);
  transition: all var(--fast) var(--ease);
}
.suggest:hover { border-color: var(--accent); color: var(--accent-ink); background: var(--accent-soft); transform: translateY(-1px); }

.meta-line { font-size: 12px; color: var(--ink-3); font-family: var(--mono); letter-spacing: 0; }

/* ---------------------------------------------------------------- reveal */
.js .reveal { opacity: 0; transform: translateY(20px); }
.js .reveal.in { opacity: 1; transform: none; transition: opacity .82s var(--ease), transform .82s var(--ease); transition-delay: var(--d, 0s); }

@media (prefers-reduced-motion: reduce) {
  .js .reveal, .js .reveal.in { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  .orb, .stepper-row.active .dotwrap i, .eyebrow .live, .shimmer::after, .thumb-tag .rec { animation: none !important; }
  .bar-fill, .stagger > *, tbody.stagger tr, .bubble { transition: none !important; animation: none !important; opacity: 1 !important; }
  * { scroll-behavior: auto !important; }
}

/* ==========================================================================
   v3 추가 — 감사에서 나온 결함 보완
   ========================================================================== */

/* ---------- 모바일 내비게이션 ---------- */
.nav-toggle {
  display: none; margin-left: auto; width: 38px; height: 38px; padding: 0;
  border: 1px solid var(--line); border-radius: 10px; background: var(--paper);
  cursor: pointer; position: relative; flex: 0 0 auto;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  position: absolute; left: 50%; width: 16px; height: 1.6px; background: var(--ink);
  border-radius: 2px; transform: translateX(-50%); transition: transform var(--mid) var(--ease), opacity var(--fast);
}
.nav-toggle span { top: 50%; margin-top: -.8px; }
.nav-toggle span::before { content: ''; left: 0; transform: none; top: -5.5px; }
.nav-toggle span::after { content: ''; left: 0; transform: none; top: 5.5px; }
.nav-toggle[aria-expanded=true] span { transform: translateX(-50%) rotate(45deg); }
.nav-toggle[aria-expanded=true] span::before { transform: rotate(-90deg); top: 0; }
.nav-toggle[aria-expanded=true] span::after { opacity: 0; }

.nav-drawer {
  position: fixed; top: var(--nav-h); left: 0; right: 0; z-index: 99;
  /* 유리 재질은 어두운 히어로 위에서 메뉴 글자를 묻히게 만든다 → 불투명 배경으로 고정 */
  background: var(--paper);
  border-bottom: 1px solid var(--line); box-shadow: var(--sh-2);
  display: grid; gap: 2px; padding: 10px 20px 18px;
  transform: translateY(-8px); opacity: 0; pointer-events: none;
  transition: opacity var(--mid) var(--ease), transform var(--mid) var(--ease);
}
.nav-drawer.open { transform: none; opacity: 1; pointer-events: auto; }
.nav-drawer a {
  text-decoration: none; padding: 13px 8px; font-size: 16px; font-weight: 600;
  border-bottom: 1px solid var(--line-2); color: var(--ink);
}
.nav-drawer a:last-child { border-bottom: none; }
@media (max-width: 900px) { .nav-toggle { display: block; } .nav-links { margin-left: 12px; } }
@media (min-width: 901px) { .nav-drawer { display: none; } }

/* ---------- 데모 스위처 ---------- */
.demo-switch { margin-top: 40px; padding-top: 30px; border-top: 1px solid var(--line); }
.demo-switch h3 { font-size: 14px; color: var(--ink-3); font-weight: 600; letter-spacing: -.01em; margin-bottom: 14px; }
.dswitch-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
@media (max-width: 820px) { .dswitch-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .dswitch-grid { grid-template-columns: 1fr; } }
.dswitch {
  display: flex; align-items: center; gap: 11px; padding: 13px 15px; text-decoration: none;
  border: 1px solid var(--line); border-radius: var(--r); background: var(--paper);
  transition: border-color var(--fast), background var(--fast), transform .35s var(--ease);
}
.dswitch:hover { border-color: var(--accent-line); background: var(--accent-soft); transform: translateY(-2px); }
.dswitch[aria-current=page] { border-color: var(--accent); background: var(--accent-soft); }
.dswitch .no { font-family: var(--mono); font-size: 11px; color: var(--ink-3); font-weight: 700; flex: 0 0 auto; }
.dswitch .nm { font-size: 14px; font-weight: 600; letter-spacing: -.02em; }
.dswitch[aria-current=page] .nm { color: var(--accent-ink); }

/* ---------- 데모 스펙 (입력 → 산출물) ---------- */
.spec { margin-top: 24px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px;
  background: var(--night-line); border: 1px solid var(--night-line); border-radius: var(--r); overflow: hidden; }
.spec > div { background: rgba(255, 255, 255, .04); padding: 14px 17px; }
.spec dt { font-size: 11px; letter-spacing: .07em; text-transform: uppercase; color: var(--night-ink-2); font-weight: 700; }
.spec dd { margin: 6px 0 0; font-size: 14px; color: #e4e9f2; line-height: 1.5; }
@media (max-width: 700px) { .spec { grid-template-columns: 1fr; } }

/* ---------- 자기 데이터 안내 배너 ---------- */
.own-data {
  display: flex; gap: 12px; align-items: flex-start; padding: 14px 18px;
  border-radius: var(--r-sm); background: var(--accent-soft); border: 1px solid var(--accent-line);
  font-size: 14px; color: var(--accent-ink); line-height: 1.55;
}
.own-data b { font-weight: 700; }
.own-data .ic { flex: 0 0 auto; font-size: 15px; line-height: 1.4; }

/* ---------- 제품 요청(수요 측정) ---------- */
.interest {
  margin-top: 18px; padding: 22px 24px; border-radius: var(--r-lg);
  border: 1px dashed var(--accent-line); background: var(--paper);
  display: flex; gap: 20px; align-items: center; flex-wrap: wrap;
}
.interest h3 { font-size: 16.5px; letter-spacing: -.026em; }
.interest p { font-size: 14px; color: var(--ink-3); margin-top: 6px; max-width: 56ch; line-height: 1.55; }
.interest .spacer { margin-left: auto; }
.interest-done { border-style: solid; border-color: var(--ok); background: var(--ok-soft); }
.interest-done h3, .interest-done p { color: var(--ok); }

/* ---------- 사람 소개 ---------- */
.person { display: grid; grid-template-columns: 128px 1fr; gap: 28px; align-items: start; }
@media (max-width: 640px) { .person { grid-template-columns: 1fr; gap: 18px; } }
.person-photo {
  width: 128px; height: 128px; border-radius: 50%; overflow: hidden; flex: 0 0 auto;
  background: linear-gradient(135deg, var(--paper-3), var(--paper-2));
  display: flex; align-items: center; justify-content: center;
  font-size: 34px; font-weight: 800; color: var(--ink-3); letter-spacing: -.04em;
  border: 1px solid var(--line);
}
.person-photo img { width: 100%; height: 100%; object-fit: cover; }
.person-name { font-size: 22px; letter-spacing: -.03em; }
.person-role { font-size: 14.5px; color: var(--accent); font-weight: 600; margin-top: 5px; }
.person-bio { margin-top: 14px; font-size: 15.5px; color: var(--ink-2); line-height: 1.68; }
.person-facts { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 9px; }
.person-facts li { position: relative; padding-left: 20px; font-size: 14.5px; color: var(--ink-2); line-height: 1.55; }
.person-facts li::before {
  content: ''; position: absolute; left: 2px; top: 7px; width: 11px; height: 7px;
  border-left: 1.8px solid var(--accent); border-bottom: 1.8px solid var(--accent);
  transform: rotate(-45deg) scale(.9);
}

/* ---------- 가격·범위 ---------- */
.price-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 760px) { .price-row { grid-template-columns: 1fr; } }
.price {
  border: 1px solid var(--line); border-radius: var(--r-lg); padding: 26px; background: var(--paper);
  transition: transform .45s var(--ease), box-shadow var(--slow) var(--ease);
}
.price:hover { transform: translateY(-3px); box-shadow: var(--sh-1); }
.price-tag { font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); font-family: var(--mono); }
.price h3 { font-size: 19px; margin: 9px 0 12px; }
.price .amt { font-size: 26px; font-weight: 700; letter-spacing: -.035em; }
.price .amt small { font-size: 14px; font-weight: 500; color: var(--ink-3); letter-spacing: -.01em; }
.price .note { margin-top: 12px; font-size: 14px; color: var(--ink-2); line-height: 1.6; }
.price-free { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent-line); }
.price-free .amt { color: var(--accent); }

/* ---------- 신뢰(계약·데이터) ---------- */
.trust-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
@media (max-width: 900px) { .trust-row { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .trust-row { grid-template-columns: 1fr; } }
.trust {
  padding: 20px; border-radius: var(--r); border: 1px solid var(--night-line);
  background: rgba(255, 255, 255, .04);
}
.trust h4 { font-size: 15px; letter-spacing: -.026em; color: var(--night-ink); }
.trust p { margin-top: 8px; font-size: 13.5px; color: var(--night-ink-2); line-height: 1.6; }

/* ---------- 푸터 연락처 ---------- */
.foot-contact { display: grid; gap: 8px; margin-top: 18px; font-size: 13.5px; }
.foot-contact a { color: var(--night-ink); font-weight: 600; }
.foot-contact a:hover { color: #fff; text-decoration: underline; }

/* ---------- 토스트 ---------- */
.toast {
  position: fixed; left: 50%; bottom: 28px; z-index: 200; transform: translate(-50%, 20px);
  padding: 13px 22px; border-radius: var(--pill); background: var(--night); color: #fff;
  font-size: 14.5px; font-weight: 600; box-shadow: var(--sh-3);
  opacity: 0; pointer-events: none; transition: opacity var(--mid) var(--ease), transform var(--mid) var(--spring);
  max-width: calc(100vw - 40px);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- 맨 위로 ---------- */
.to-top {
  position: fixed; right: 22px; bottom: 22px; z-index: 90;
  width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--line);
  background: var(--glass); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  cursor: pointer; display: grid; place-items: center; color: var(--ink);
  opacity: 0; pointer-events: none; transition: opacity var(--mid) var(--ease), transform .35s var(--spring);
  box-shadow: var(--sh-1);
}
.to-top.show { opacity: 1; pointer-events: auto; }
.to-top:hover { transform: translateY(-2px); }

/* ---------- 포커스 링 (접근성) ---------- */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
.skip {
  position: absolute; left: 12px; top: -60px; z-index: 300;
  padding: 11px 18px; border-radius: var(--r-sm); background: var(--accent); color: var(--on-accent);
  font-weight: 600; text-decoration: none; transition: top var(--fast) var(--ease);
}
.skip:focus { top: 10px; }

@media (prefers-reduced-motion: reduce) {
  .nav-drawer, .toast, .to-top, .dswitch, .price, .person-photo { transition: none !important; }
}

/* ---------- 감사에서 잡힌 대비 결함 수정 ---------- */
/* .sec .lede 가 동일 특이도로 뒤에 선언돼 .sec-night .lede 를 덮고 있었다.
   → 어두운 밴드에서 본문이 #4a4a52 로 렌더돼 대비 2.3:1 (WCAG 미달)이었다. */
section.sec-night .lede,
section.sec-night .muted,
section.sec-night p:not([class]) { color: var(--night-ink-2); }
section.sec-night h2, section.sec-night h3, section.sec-night h4 { color: var(--night-ink); }

/* 작은 모노 라벨의 accent 색은 밝은 회색 배경에서 4.5:1 을 못 넘겼다 → 진한 톤으로 */
.cite-head .id, .raw-frag-head .id { color: var(--accent-ink); }

/* ---------------------------------------------------------------- 진단 에이전트 */
.checks { display: flex; flex-wrap: wrap; gap: 8px; }
.checks label {
  display: inline-flex; align-items: center; gap: 7px; padding: 8px 14px;
  border: 1px solid var(--line); border-radius: var(--pill); background: var(--paper);
  font-size: 14px; cursor: pointer; color: var(--ink-2);
  transition: border-color var(--fast), background var(--fast), color var(--fast);
}
.checks label:hover { border-color: var(--ink-4); }
.checks input { accent-color: var(--accent); width: 15px; height: 15px; margin: 0; cursor: pointer; }
.checks label:has(input:checked) { border-color: var(--accent); background: var(--accent-soft); color: var(--accent-ink); font-weight: 600; }

.readiness { margin-top: 20px; padding: 20px 22px; border-radius: var(--r); background: var(--paper-2); border: 1px solid var(--line); }
.readiness > div:first-child { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.rd-label { font-size: 12px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-3); }
.rd-level { font-size: 19px; font-weight: 700; letter-spacing: -.03em; }
.rd-basis { margin-top: 10px; font-size: 14.5px; color: var(--ink-2); line-height: 1.6; }
.rd-gap { margin-top: 14px; padding: 12px 16px; border-radius: var(--r-sm); background: var(--accent-soft); color: var(--accent-ink); font-size: 14.5px; line-height: 1.55; }

/* 판정별 좌측 바 */
.v-go { box-shadow: inset 3px 0 0 var(--ok); }
.v-cond { box-shadow: inset 3px 0 0 var(--warn); }
.v-notai { box-shadow: inset 3px 0 0 var(--ink-4); }
.v-risk { box-shadow: inset 3px 0 0 var(--danger); }

.order-list { margin: 0; padding-left: 1.3em; display: grid; gap: 11px; font-size: 14.5px; color: var(--ink-2); }
.order-list li { line-height: 1.55; padding-left: 4px; }
.order-list li::marker { color: var(--accent); font-weight: 700; }

.prd-cta {
  margin-top: 16px; padding: 13px 16px; border-radius: var(--r-sm);
  background: var(--ok-soft); display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  font-size: 14px; color: var(--ok); font-weight: 500;
}
.prd-cta .btn { margin-left: auto; }
.loading-prd { margin-top: 14px; display: grid; gap: 9px; }
.loading-prd .shimmer { display: block; }

.prd { margin-top: 14px; border: 1px solid var(--accent-line); border-radius: var(--r); overflow: hidden; background: var(--paper); }
.prd-head {
  padding: 16px 18px; background: var(--accent-soft); border-bottom: 1px solid var(--accent-line);
  display: flex; gap: 14px; align-items: flex-start; flex-wrap: wrap;
}
.prd-tag { font-family: var(--mono); font-size: 11px; font-weight: 700; letter-spacing: .04em; color: var(--accent-ink); }
.prd-head h4 { font-size: 17px; margin: 7px 0 5px; letter-spacing: -.028em; }
.prd-head p { font-size: 14px; color: var(--ink-2); max-width: 60ch; line-height: 1.5; }
.prd-body { padding: 18px 20px; }
.prd-body h5 { font-size: 12px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase;
  color: var(--ink-3); margin: 18px 0 8px; }
.prd-body > .io-2:first-child h5, .prd-body .io-2 h5 { margin-top: 0; }
.prd-body ul, .prd-body ol { margin: 0; padding-left: 1.2em; display: grid; gap: 7px; }
.prd-body li { font-size: 14px; color: var(--ink-2); line-height: 1.6; }
.prd-stack { margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--line-2); font-size: 14px; color: var(--ink-2); }

/* ---------- 진단 에이전트 — 랜딩 주력 배너 ---------- */
.hero-diag {
  margin-top: 34px; display: flex; align-items: center; gap: 22px; flex-wrap: wrap;
  padding: 20px 24px; border-radius: var(--r-lg);
  background: rgba(255, 255, 255, .06); border: 1px solid var(--night-line);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  text-decoration: none; transition: background var(--mid) var(--ease), transform .4s var(--ease);
}
.hero-diag:hover { background: rgba(255, 255, 255, .11); transform: translateY(-2px); }
.hero-diag .t { font-size: 16.5px; font-weight: 700; letter-spacing: -.028em; color: #fff; }
.hero-diag .d { margin-top: 5px; font-size: 14px; color: var(--night-ink-2); line-height: 1.5; max-width: 62ch; }
.hero-diag .go {
  margin-left: auto; flex: 0 0 auto; display: inline-flex; align-items: center; gap: 7px;
  font-size: 14.5px; font-weight: 600; color: #9db9ff;
}
.hero-diag:hover .go svg { transform: translateX(4px); }
.hero-diag .go svg { transition: transform var(--mid) var(--ease); }
@media (max-width: 700px) { .hero-diag .go { margin-left: 0; } }

.card-lead { border-color: var(--accent-line); box-shadow: 0 0 0 1px var(--accent-line), var(--sh-1); }
.card-lead .thumb { background: linear-gradient(140deg, var(--night) 0%, #16234a 100%); }
.diag-art { width: 100%; height: 100%; display: block; }

/* ---------- 진단 · 보안 점검표 (코드가 계산하는 영역) ---------- */
.fieldset-sec {
  margin-top: 20px; padding: 18px 20px 6px; border-radius: var(--r);
  border: 1px solid var(--line); background: var(--paper-2);
}
.fs-head { margin-bottom: 14px; }
.fs-head b { font-size: 14px; letter-spacing: -.02em; }
.fs-head span { display: block; margin-top: 5px; font-size: 13px; color: var(--ink-3); line-height: 1.55; }

.ck { display: grid; gap: 10px; }
.ck-row {
  padding: 15px 17px; border-radius: var(--r-sm);
  border: 1px solid var(--line); background: var(--paper);
  transition: border-color var(--fast);
}
.ck-top { display: flex; align-items: center; gap: 9px; flex-wrap: wrap; }
.ck-dot { width: 9px; height: 9px; border-radius: 50%; flex: 0 0 auto; background: var(--ink-4); }
.ck-title { font-weight: 700; font-size: 14.5px; letter-spacing: -.022em; }
.ck-st {
  font-size: 11.5px; font-weight: 700; letter-spacing: .03em;
  padding: 2px 8px; border-radius: 980px; background: var(--paper-2); color: var(--ink-3);
}
.ck-ans { margin-left: auto; font-family: var(--mono); font-size: 11.5px; color: var(--ink-3); }
.ck-std { margin-top: 9px; font-size: 13px; color: var(--ink-3); line-height: 1.5; }
.ck-std b, .ck-step b { font-size: 11px; letter-spacing: .05em; text-transform: uppercase; color: var(--ink-3); margin-right: 6px; }
.ck-risk { margin-top: 8px; font-size: 14px; color: var(--ink-2); line-height: 1.62; }
.ck-step {
  margin-top: 11px; padding: 9px 12px; border-radius: var(--r-sm);
  background: var(--accent-soft); color: var(--accent-ink); font-size: 13.5px; line-height: 1.55;
}
.ck-row.st-good { box-shadow: inset 3px 0 0 var(--ok); }
.ck-row.st-good .ck-dot { background: var(--ok); }
.ck-row.st-good .ck-st { background: var(--ok-soft); color: var(--ok); }
.ck-row.st-partial { box-shadow: inset 3px 0 0 var(--warn); }
.ck-row.st-partial .ck-dot { background: var(--warn); }
.ck-row.st-partial .ck-st { background: var(--warn-soft); color: var(--warn); }
.ck-row.st-gap { box-shadow: inset 3px 0 0 var(--danger); }
.ck-row.st-gap .ck-dot { background: var(--danger); }
.ck-row.st-gap .ck-st { background: var(--danger-soft); color: var(--danger); }
.ck-row.st-unknown { box-shadow: inset 3px 0 0 var(--ink-4); border-style: dashed; }
@media (max-width: 620px) { .ck-ans { margin-left: 0; width: 100%; } }

/* 걸린 규칙 */
.rules { display: grid; gap: 11px; }
.rule {
  padding: 15px 17px; border-radius: var(--r-sm); border: 1px solid var(--line);
  background: var(--paper); box-shadow: inset 3px 0 0 var(--warn);
}
.rule-top { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.rule-top b { font-size: 15px; letter-spacing: -.024em; line-height: 1.4; }
.rule-why { margin-top: 9px; font-size: 14px; color: var(--ink-2); line-height: 1.62; }
.rule-do {
  margin-top: 11px; padding: 10px 13px; border-radius: var(--r-sm);
  background: var(--paper-2); font-size: 13.5px; color: var(--ink-2); line-height: 1.58;
}
.rule-do b { font-size: 11px; letter-spacing: .05em; text-transform: uppercase; color: var(--ink-3); margin-right: 6px; }

/* 항목별 안전장치 */
ul.guards { margin: 0; padding-left: 1.15em; display: grid; gap: 6px; }
ul.guards li { font-size: 14px; color: var(--ink-2); line-height: 1.58; }
ul.guards li::marker { color: var(--ok); }

/* ---------- PRD · 실행 방법 ---------- */
.howto {
  margin: 22px 0 6px; padding: 18px 20px 4px;
  border-radius: var(--r); border: 1px solid var(--accent-line); background: var(--accent-soft);
}
.howto-head { margin-bottom: 6px; }
.howto-head b { font-size: 14.5px; letter-spacing: -.024em; color: var(--accent-ink); }
.howto-head span { display: block; margin-top: 5px; font-size: 13px; color: var(--ink-3); line-height: 1.55; }
.howto h5 { margin-top: 18px; }
.howto .scroll-x { background: var(--paper); }
.howto code { font-family: var(--mono); font-size: 12.5px; }
ul.prereq { padding-left: 1.15em; }
ul.prereq li::marker { color: var(--accent); }
ol.runsteps li::marker { color: var(--accent); font-weight: 700; }

pre.cmd {
  margin: 0; padding: 13px 15px; border-radius: var(--r-sm); overflow-x: auto;
  background: var(--night); border: 1px solid var(--night-line);
}
pre.cmd code { color: #d8e2ff; font-size: 12.5px; line-height: 1.75; white-space: pre; }

.firstp {
  margin-top: 18px; padding: 14px 16px; border-radius: var(--r-sm);
  background: var(--paper); border: 1px dashed var(--accent-line);
}
.firstp-top { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.firstp-top b { font-size: 12px; letter-spacing: .05em; text-transform: uppercase; color: var(--ink-3); }
.firstp-top .btn { margin-left: auto; }
.firstp p { margin-top: 10px; font-size: 14px; color: var(--ink-2); line-height: 1.65; }

.prd-warn { margin-top: 12px; font-size: 12.5px; color: var(--ink-3); line-height: 1.55; }

/* ---------- 진단 · "되는 범위" 강조 ---------- */
.rule-ok {
  margin-top: 10px; padding: 10px 13px; border-radius: var(--r-sm);
  background: var(--ok-soft); font-size: 13.5px; color: var(--ok); line-height: 1.58;
}
.rule-ok b { font-size: 11px; letter-spacing: .05em; text-transform: uppercase; margin-right: 6px; opacity: .85; }

.safepath {
  margin-top: 16px; padding: 13px 16px; border-radius: var(--r-sm);
  background: var(--ok-soft); border-left: 3px solid var(--ok);
}
.safepath b { display: block; font-size: 11px; letter-spacing: .05em; text-transform: uppercase; color: var(--ok); }
.safepath p { margin-top: 7px; font-size: 14.5px; color: var(--ink-2); line-height: 1.6; }

/* 축소 버전 CTA — 전체 착수 가능 건과 톤을 구분한다 */
.prd-cta-narrow { background: var(--accent-soft); color: var(--accent-ink); }

.sd-how { font-size: 13.5px; color: var(--ink-2); line-height: 1.6; margin-bottom: 10px; }
pre.cmd.sample { margin-bottom: 10px; }
pre.cmd.sample code { color: #cfe8d8; }

/* ---------- 진단 항목 카드 — 방법 먼저, 위험은 나중 ---------- */
.f-why { font-size: 14.5px; color: var(--ink-3); }

/* ① 만드는 방법 */
ol.steps { margin: 0; padding-left: 0; list-style: none; counter-reset: st; display: grid; gap: 9px; }
ol.steps li {
  counter-increment: st; position: relative; padding-left: 32px;
  font-size: 14.5px; color: var(--ink-2); line-height: 1.62;
}
ol.steps li::before {
  content: counter(st); position: absolute; left: 0; top: 1px;
  width: 21px; height: 21px; border-radius: 50%;
  background: var(--accent); color: var(--on-accent);
  font-size: 11.5px; font-weight: 700; font-family: var(--mono);
  display: flex; align-items: center; justify-content: center;
}

/* ② 쓰는 모습 */
.usage {
  margin-top: 16px; padding: 14px 17px; border-radius: var(--r-sm);
  background: var(--paper-2); border: 1px solid var(--line);
}
.usage b { font-size: 11px; letter-spacing: .05em; text-transform: uppercase; color: var(--ink-3); }
.usage p { margin-top: 7px; font-size: 14.5px; color: var(--ink-2); line-height: 1.65; }

/* ③ 시작 전에 정할 것 */
ul.prep { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
ul.prep li {
  padding: 11px 14px; border-radius: var(--r-sm);
  background: var(--paper-2); border-left: 3px solid var(--ink-4);
}
ul.prep li b { display: block; font-size: 14px; letter-spacing: -.018em; }
ul.prep li span { display: block; margin-top: 5px; font-size: 13.5px; color: var(--ink-3); line-height: 1.58; }

/* ④ 문제 ↔ 막는 방법 */
.rk { display: grid; gap: 10px; }
.rk-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1px;
  border: 1px solid var(--line); border-radius: var(--r-sm); overflow: hidden; background: var(--line);
}
.rk-what, .rk-solve { padding: 12px 15px; font-size: 14px; line-height: 1.6; }
.rk-what { background: var(--danger-soft); color: var(--ink-2); }
.rk-solve { background: var(--ok-soft); color: var(--ink-2); }
.rk-what span, .rk-solve span {
  display: block; margin-bottom: 5px;
  font-size: 10.5px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
}
.rk-what span { color: var(--danger); }
.rk-solve span { color: var(--ok); }
@media (max-width: 640px) { .rk-row { grid-template-columns: 1fr; } }

/* ---------- 안전보건 평가표 (DEMO 01) ---------- */
.crit-fold {
  margin: 0 0 18px; border: 1px solid var(--line); border-radius: var(--r);
  background: var(--paper); overflow: hidden;
}
.crit-fold > summary {
  padding: 15px 20px; cursor: pointer; font-size: 14.5px; font-weight: 600;
  letter-spacing: -.02em; list-style: none; display: flex; gap: 8px; flex-wrap: wrap; align-items: baseline;
}
.crit-fold > summary::-webkit-details-marker { display: none; }
.crit-fold > summary::before {
  content: '▸'; color: var(--accent); font-weight: 700; transition: transform var(--fast);
}
.crit-fold[open] > summary::before { transform: rotate(90deg); }
.crit-fold > summary:hover { background: var(--paper-2); }
.crit-fold > summary span { font-weight: 400; font-size: 13px; color: var(--ink-3); }
.crit-fold > div { padding: 4px 20px 20px; border-top: 1px solid var(--line-2); }
.crit-note { margin: 16px 0 18px; font-size: 13.5px; color: var(--ink-3); line-height: 1.62; }

.crit-axis + .crit-axis { margin-top: 22px; }
.crit-axis h4 {
  font-size: 14px; font-weight: 700; letter-spacing: -.022em; margin: 0 0 10px;
  display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap;
}
.crit-pt {
  font-family: var(--mono); font-size: 11.5px; font-weight: 700; letter-spacing: .02em;
  padding: 2px 9px; border-radius: 980px; background: var(--accent-soft); color: var(--accent-ink);
}

/* 코드 검증 배너 — 이 데모의 핵심 주장 */
.verify-band {
  margin-top: 20px; padding: 17px 20px; border-radius: var(--r);
  background: var(--ok-soft); border-left: 3px solid var(--ok);
}
.verify-band > b { font-size: 13px; letter-spacing: .02em; color: var(--ok); }
.verify-band p { margin-top: 8px; font-size: 14px; color: var(--ink-2); line-height: 1.62; }
.verify-band code { font-family: var(--mono); font-size: 12.5px; }
.verify-band .vb-ok { color: var(--ok); font-weight: 500; }
.verify-band .vb-bad { color: var(--danger); font-weight: 500; }

/* 위험 요인 */
.hz { display: grid; gap: 11px; }
.hz-row {
  padding: 15px 17px; border-radius: var(--r-sm); border: 1px solid var(--line);
  background: var(--paper); box-shadow: inset 3px 0 0 var(--warn);
}
.hz-what { font-size: 15px; font-weight: 600; letter-spacing: -.022em; line-height: 1.5; }
.hz-why, .hz-map { margin-top: 9px; font-size: 13.5px; color: var(--ink-2); line-height: 1.58; }
.hz-why span, .hz-map span {
  display: inline-block; margin-right: 7px; font-size: 10.5px; font-weight: 700;
  letter-spacing: .06em; text-transform: uppercase; color: var(--ink-3);
}
.hz-map code {
  font-family: var(--mono); font-size: 12px; padding: 2px 7px; border-radius: 6px;
  background: var(--accent-soft); color: var(--accent-ink); font-weight: 600;
}
.hz-bad { color: var(--danger); font-size: 12.5px; }

/* 항목별 확인 포인트 */
.cp-why { margin-top: 5px; font-size: 13px; color: var(--ink-3); line-height: 1.55; }
ul.cp { margin: 8px 0 0; padding-left: 1.15em; display: grid; gap: 5px; }
ul.cp li { font-size: 13.5px; color: var(--ink-2); line-height: 1.55; }
ul.cp li::marker { color: var(--accent); }

/* 위험 신호 */
ul.flags { margin: 0; padding-left: 1.15em; display: grid; gap: 10px; }
ul.flags li { font-size: 14.5px; color: var(--ink-2); line-height: 1.58; }
ul.flags li::marker { color: var(--danger); }

/* 프로파일 카드 */
.pf { margin-top: 20px; padding: 17px 20px; border-radius: var(--r); background: var(--paper-2); border: 1px solid var(--line); }
.pf-top { display: flex; gap: 14px; align-items: center; }
.pf-key {
  flex: 0 0 auto; width: 38px; height: 38px; border-radius: 11px;
  background: var(--accent); color: var(--on-accent);
  font-family: var(--mono); font-size: 18px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.pf-top b { font-size: 15.5px; letter-spacing: -.024em; }
.pf-top > div span { display: block; margin-top: 3px; font-size: 13px; color: var(--ink-3); }
.pf-why { margin-top: 11px; font-size: 14px; color: var(--ink-2); line-height: 1.6; }
.pf-bars { margin-top: 14px; display: grid; gap: 7px; }
.pf-bar { display: flex; align-items: center; gap: 10px; }
.pf-n { flex: 0 0 82px; font-size: 12.5px; color: var(--ink-3); }
.pf-track { flex: 1; height: 8px; border-radius: 980px; background: var(--line-2); overflow: hidden; }
.pf-track i { display: block; height: 100%; border-radius: 980px; background: var(--accent); }
.pf-v { flex: 0 0 26px; text-align: right; font-family: var(--mono); font-size: 12.5px; font-weight: 700; color: var(--accent-ink); }

.verify-band.vb-fail { background: var(--danger-soft); border-left-color: var(--danger); }
.verify-band.vb-fail > b { color: var(--danger); }
ul.vb-list { margin: 9px 0 0; padding-left: 1.15em; display: grid; gap: 6px; }
ul.vb-list li { font-size: 13.5px; color: var(--ink-2); line-height: 1.55; }
ul.vb-list li::marker { color: var(--warn); }

.cp-note { margin-top: 7px; font-size: 12.5px; color: var(--ink-3); line-height: 1.5; }
.tip {
  padding: 16px 19px; border-radius: var(--r-sm); background: var(--warn-soft);
  border-left: 3px solid var(--warn); font-size: 15px; color: var(--ink-2); line-height: 1.65;
}

/* ---------- 이럴 때 씁니다 — 히어로에서 사용자가 자기 상황을 대입하는 자리 ---------- */
/* 기존 .proves(우리 엔지니어링 자랑)를 대체한다. 신뢰 얘기는 결과가 나온 뒤 그 자리에서 한다. */
.usecase {
  margin-top: 30px; padding: 20px 24px; border-radius: var(--r);
  background: rgba(255, 255, 255, .05); border: 1px solid var(--night-line);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  max-width: 68ch;
}
.usecase > b {
  display: block; font-size: 12px; font-weight: 700; letter-spacing: .07em;
  text-transform: uppercase; color: #9db9ff;
}
.usecase ul { margin: 13px 0 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.usecase li {
  position: relative; padding-left: 24px;
  font-size: 15.5px; color: #dbe2ee; line-height: 1.55;
}
.usecase li::before {
  content: ''; position: absolute; left: 4px; top: 9px;
  width: 6px; height: 6px; border-radius: 50%; background: #5b8cff;
}
@media (max-width: 640px) {
  .usecase { padding: 17px 19px; }
  .usecase li { font-size: 15px; }
}