/* DRILL CARD 홈페이지 — 기준: drillcard/tmp/site/STANDARD.md (앱 기준 docs/design_standard.md를 웹으로 옮긴 것)
   면은 셋: 흰 면 · 검은 캡슐 · 강조색 캡슐. 강조색은 한 화면에 하나(주 행동과 선택 상태).
   움직임: 열림 380ms easeOutCubic · 닫힘 220ms easeInCubic · 줄 320ms · 차례 40ms · 누름 0.97배.
   폭: 데스크톱 1024+ · 태블릿 760~1023 · 휴대폰 760 미만. 테마는 늘 Plain White(발행인 10/18: 시스템 어두운 모드를 따르지 않는다). */

@font-face{font-family:"DC Pretendard";src:url("/assets/fonts/pretendard-ks.woff2") format("woff2"),url("/assets/fonts/pretendard-ks.woff") format("woff");font-weight:100 900;font-style:normal;font-display:swap}
@font-face{font-family:"DC Syne";src:url("/assets/fonts/syne-brand.woff2") format("woff2"),url("/assets/fonts/syne-brand.woff") format("woff");font-weight:400 800;font-style:normal;font-display:swap}
@font-face{font-family:"DC Chosun";src:url("/assets/fonts/chosun-card.woff2") format("woff2"),url("/assets/fonts/chosun-card.woff") format("woff");font-weight:400;font-style:normal;font-display:swap}

/* ---------- tokens: Plain White ---------- */
:root{
  color-scheme:light;
  --canvas:#F3F6FB; --surface:#FFFFFF; --field:rgb(21 32 51 / .06); --hover:#EDF2F9;
  --line:#E1E8F1; --ink:#152033; --ink-2:#334155; --muted:#5B6B80;
  --accent:#2563EB; --accent-ink:#1D4ED8; --accent-soft:#EAF1FE; --on-accent:#FFFFFF;
  --ok:#15803D; --bad:#DC2626; --bad-ink:#B91C1C; --warn:#B45309; --warn-soft:#FEF3C7;
  --capsule:#0B0B0F; --on-capsule:#F8FAFC; --num:#6B7280;
  --sh-1:0 1px 2px rgb(15 23 42 / .06),0 3px 10px rgb(15 23 42 / .08);
  --sh-2:0 2px 4px rgb(15 23 42 / .06),0 10px 24px rgb(15 23 42 / .12);
  --sh-accent:0 1px 2px rgb(37 99 235 / .25),0 6px 16px rgb(37 99 235 / .22);
  --sh-accent-2:0 2px 4px rgb(37 99 235 / .25),0 10px 24px rgb(37 99 235 / .28);
  --hair:0 0 0 0 transparent;
  --r-row:12px; --r-surface:20px; --r-tile:28px;
  --ease-open:cubic-bezier(.33,1,.68,1); --ease-close:cubic-bezier(.32,0,.67,0); --ease-row:cubic-bezier(.2,.9,.25,1);
  --t-open:380ms; --t-close:220ms; --t-row:320ms; --stagger:40ms;
  --f-body:"DC Pretendard","Apple SD Gothic Neo","Malgun Gothic",system-ui,sans-serif;
  --f-brand:"DC Syne","Arial Black","Helvetica Neue",Arial,sans-serif;
  --f-serif:"DC Chosun","AppleMyungjo","Nanum Myeongjo","Noto Serif KR","Batang",serif;
}
.ds-only-dark{display:none!important}

/* ---------- base ---------- */
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{margin:0;min-height:100vh;display:flex;flex-direction:column;background:var(--canvas);color:var(--ink);font-family:var(--f-body);font-size:17px;line-height:1.7;word-break:keep-all;overflow-wrap:break-word;-webkit-font-smoothing:antialiased;overflow-x:hidden}
main{flex:1 0 auto}
img{max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
:is(a,button,input,select,textarea,summary,label):focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.sr,.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:16px;top:-80px;z-index:20;height:44px;display:inline-flex;align-items:center;padding:0 18px;border-radius:22px;background:var(--surface);box-shadow:var(--sh-2),var(--hair);font-size:15px;font-weight:600}
.skip-link:focus{top:12px}
.ds-wrap{width:100%;max-width:1184px;margin-inline:auto;padding-inline:32px}
.ds-h2{margin:0;font-size:36px;font-weight:700;letter-spacing:-.02em;line-height:1.3}
.ds-sub{margin:10px 0 0;font-size:17px;color:var(--ink-2)}
.ds-sec{padding-block:112px 0}
.ds-sec.tight{padding-top:56px}
.ds-sec-head{margin-bottom:40px;max-width:680px}
.ds-note{margin:16px 0 0;font-size:14px;color:var(--muted)}
.muted{color:var(--muted)}

/* ---------- capsules and links ---------- */
.ds-cap{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:22px;border:0;font-size:15px;font-weight:600;line-height:1;white-space:nowrap;cursor:pointer;text-decoration:none;
  transition:scale 180ms var(--ease-open),box-shadow 150ms ease-out,background-color 150ms ease-out}
.ds-cap:active{scale:.97;transition-duration:150ms}
.ds-cap.face{background:var(--surface);color:var(--ink);box-shadow:var(--sh-1),var(--hair)}
.ds-cap.face:hover{box-shadow:var(--sh-2),var(--hair)}
.ds-cap.accent{background:var(--accent);color:var(--on-accent);box-shadow:var(--sh-accent)}
.ds-cap.accent:hover{box-shadow:var(--sh-accent-2)}
.ds-cap[disabled]{opacity:.55;cursor:default}
.ds-link{font-size:15px;font-weight:600;color:var(--ink);text-underline-offset:4px}
.ds-link:hover{text-decoration:underline}
.ds-link::after{content:" →";color:var(--muted)}
.ds-text-link,.ds-art a:not([class]),.ds-page a:not([class]){color:var(--accent-ink);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
.ds-ext::after{content:" ↗";font-size:.9em}
.ds-art :is(.ds-toc,.ds-pn,.ds-doc-list,.ds-side) a{color:inherit;text-decoration:none}

/* ---------- header (nv1) ---------- */
.ds-head{position:relative;z-index:5}
.ds-head-row{height:72px;display:flex;align-items:center;gap:40px}
.ds-wm-s{font-family:var(--f-brand);font-weight:800;font-size:21px;letter-spacing:.01em;line-height:1;white-space:nowrap}
.ds-nav{margin-left:auto;display:flex;gap:28px;font-size:15px;font-weight:500;color:var(--ink-2)}
.ds-nav a{position:relative;padding-block:6px}
.ds-nav a:hover{color:var(--ink)}
.ds-nav a[aria-current="page"]{color:var(--ink);font-weight:600}
.ds-nav a[aria-current="page"]::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:1px;background:var(--accent)}
.ds-head-end{display:flex;gap:10px;align-items:center}
.ds-menu-btn{display:none}
body.home .ds-head .ds-wm-s{visibility:hidden}

/* grow: the pressed capsule grows into its sheet (clip-path from the button rect) and pushes the page (grid rows) */
.ds-mnav{display:none}
.ds-ico{position:relative;width:16px;height:12px;display:inline-block;flex:none}
.ds-ico i{position:absolute;left:0;right:0;height:2px;border-radius:1px;background:currentColor;transition:transform 180ms var(--ease-open),opacity 180ms var(--ease-open)}
.ds-ico i:nth-child(1){top:1px}.ds-ico i:nth-child(2){top:5px}.ds-ico i:nth-child(3){top:9px}
.is-open .ds-ico i:nth-child(1){transform:translateY(4px) rotate(45deg)}
.is-open .ds-ico i:nth-child(2){opacity:0}
.is-open .ds-ico i:nth-child(3){transform:translateY(-4px) rotate(-45deg)}
.ds-lbl{display:inline-grid}
.ds-lbl > span{grid-area:1/1;transition:opacity 180ms var(--ease-open)}
.ds-lbl > span + span{opacity:0}
.is-open .ds-lbl > span:first-child{opacity:0}
.is-open .ds-lbl > span + span{opacity:1}
.ds-grow-sheet{position:relative;background:var(--surface);border-radius:var(--r-surface);box-shadow:var(--sh-2),var(--hair);
  clip-path:inset(0 0 calc(100% - 44px) calc(100% - var(--btn-w,96px)) round 22px);visibility:hidden;
  transition:clip-path var(--t-close) var(--ease-close),visibility 0s var(--t-close)}
.is-open .ds-grow-sheet{clip-path:inset(0 0 0 0 round var(--r-surface));visibility:visible;transition:clip-path var(--t-open) var(--ease-open),visibility 0s}
.ds-grow-rows{display:grid;grid-template-rows:0fr;transition:grid-template-rows var(--t-close) var(--ease-close)}
.is-open .ds-grow-rows{grid-template-rows:1fr;transition:grid-template-rows var(--t-open) var(--ease-open)}
.ds-grow-rows > div{min-height:0}
.ds-row-in{opacity:0;transform:translateY(6px);transition:opacity 140ms ease-in,transform 140ms ease-in}
.is-open .ds-row-in{opacity:1;transform:none;transition:opacity var(--t-row) var(--ease-row),transform var(--t-row) var(--ease-row);transition-delay:calc(68ms + var(--i,0) * var(--stagger))}
.ds-rows > :nth-child(2){--i:1}.ds-rows > :nth-child(3){--i:2}.ds-rows > :nth-child(4){--i:3}.ds-rows > :nth-child(5){--i:4}
.ds-rows > :nth-child(6){--i:5}.ds-rows > :nth-child(7){--i:6}.ds-rows > :nth-child(8){--i:7}.ds-rows > :nth-child(9){--i:8}.ds-rows > :nth-child(10){--i:9}.ds-rows > :nth-child(11){--i:10}
.ds-mnav-list{list-style:none;margin:0;padding:64px 8px 8px}
.ds-mnav-list a{display:flex;align-items:center;height:52px;padding:0 14px;border-radius:var(--r-row);font-size:17px;font-weight:600}
.ds-mnav-list a:hover{background:var(--hover)}
.ds-mnav-list a[aria-current="page"]{color:var(--accent-ink)}
.ds-mnav-end{--i:5;padding:8px 16px 16px;display:flex;gap:8px}
.ds-mnav-end .ds-cap{flex:1}

/* ---------- hero (hs1 + he1) ---------- */
.ds-hero{padding-top:24px}
.ds-wordmark{font-family:var(--f-brand);font-weight:800;font-size:min(calc((100vw - 64px) / 10.4),108px);line-height:.95;letter-spacing:.005em;margin:0;white-space:nowrap}
.ds-marquee{margin-top:28px;border-block:1px solid var(--line);overflow:hidden;height:40px;display:flex;align-items:center}
.ds-mq-track{display:flex;width:max-content;animation:ds-mq 48s linear infinite}
.ds-mq-track span{font-family:var(--f-brand);font-weight:700;font-size:13px;letter-spacing:.18em;color:var(--ink-2);padding-right:28px;white-space:nowrap}
.ds-mq-track span i{font-style:normal;color:var(--muted);padding-left:28px}
@keyframes ds-mq{to{transform:translateX(-50%)}}
.ds-hero-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:56px;align-items:start;padding-top:64px}
.ds-hero h1{margin:0;font-size:44px;font-weight:700;letter-spacing:-.025em;line-height:1.25}
.ds-hero-sub{margin:16px 0 0;font-size:18px;color:var(--ink-2);max-width:420px}
.ds-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px 24px;margin-top:32px}
.ds-actions + .ds-actions{margin-top:12px}
.ds-hero .ds-actions .ds-cap{min-width:132px}
.ds-status{display:flex;align-items:center;gap:8px;margin:24px 0 0;font-size:14px;color:var(--muted)}
.ds-dot{width:8px;height:8px;border-radius:50%;background:var(--muted);flex:none}
.ds-dot.on{background:var(--ok)}

/* OX card — the pressed button grows into the explanation, then the summary pushes down */
.ds-stage{max-width:560px}
.ds-ox{background:var(--surface);border-radius:24px;padding:20px 16px 16px;box-shadow:var(--sh-2),0 0 0 1px var(--line)}
.ds-ox-title{display:flex;align-items:center;justify-content:center;gap:12px;margin:2px 0 16px;color:var(--accent-ink);font-weight:800;font-size:22px;letter-spacing:-.01em}
.ds-ox-title::before,.ds-ox-title::after{content:"";width:40px;height:1px;background:color-mix(in srgb,var(--accent) 45%,transparent)}
.ds-ox-title i{font-style:normal;font-size:13px;opacity:.6}
.ds-ox-path{display:flex;align-items:stretch;min-height:30px;border-radius:10px;box-shadow:inset 0 0 0 1px var(--line);margin-bottom:6px;font-size:14px;font-weight:700;overflow:hidden}
.ds-ox-path > span{display:flex;align-items:center;padding:0 12px}
.ds-ox-core{font-family:var(--f-brand);font-weight:800;background:var(--accent-soft);color:var(--ink);min-width:84px}
.ds-ox-no{background:var(--num);color:#fff;min-width:34px;justify-content:center}
.ds-ox-path.sm{font-size:13px;min-height:26px}
.ds-ox-q{position:relative;margin:12px 0 10px;padding:22px 16px 16px;border-radius:12px;box-shadow:inset 0 0 0 1px var(--line)}
.ds-ox-num{position:absolute;top:-11px;left:14px;width:22px;height:22px;border-radius:50%;background:var(--surface);box-shadow:inset 0 0 0 1px var(--line);font-size:12px;font-weight:700;display:grid;place-items:center}
.ds-ox-num svg{position:absolute;inset:-6px;width:34px;height:34px;overflow:visible;pointer-events:none}
.ds-ox-num .ring{fill:none;stroke:var(--ok);stroke-width:2.5;stroke-dasharray:90;stroke-dashoffset:90}
.ds-ox-num .slash{stroke:var(--bad);stroke-width:2.5;stroke-linecap:round;stroke-dasharray:40;stroke-dashoffset:40}
.ds-ox[data-result="ok"] .ring{stroke-dashoffset:0;transition:stroke-dashoffset 320ms var(--ease-row) 140ms}
.ds-ox[data-result="bad"] .slash{stroke-dashoffset:0;transition:stroke-dashoffset 260ms var(--ease-row) 140ms}
.ds-ox-q p{margin:0;font-family:var(--f-serif);font-size:18px;line-height:1.65;color:var(--ink)}
.ds-ox-act{display:grid}
.ds-ox-act > *{grid-area:1/1}
.ds-ox-btns{display:grid;grid-template-columns:1fr 1fr;gap:8px;align-self:start}
.ds-ox-btns button{height:48px;border-radius:12px;border:0;cursor:pointer;font-size:20px;font-weight:700;display:grid;place-items:center;
  transition:scale 180ms var(--ease-open),opacity 150ms ease-out,box-shadow 150ms ease-out}
.ds-ox-btns button:active{scale:.97;transition-duration:150ms}
.ds-ox-btns .o{color:var(--accent);background:color-mix(in srgb,var(--accent) 7%,var(--surface));box-shadow:inset 0 0 0 1.5px color-mix(in srgb,var(--accent) 70%,transparent)}
.ds-ox-btns .x{color:var(--bad);background:color-mix(in srgb,var(--bad) 7%,var(--surface));box-shadow:inset 0 0 0 1.5px color-mix(in srgb,var(--bad) 70%,transparent)}
.ds-ox-btns .o:hover{box-shadow:inset 0 0 0 1.5px var(--accent),var(--sh-1)}
.ds-ox-btns .x:hover{box-shadow:inset 0 0 0 1.5px var(--bad),var(--sh-1)}
.ds-ox-o{width:16px;height:16px;border-radius:50%;border:2.5px solid currentColor}
.ds-ox[data-state] .ds-ox-btns{pointer-events:none}
.ds-ox[data-state] .ds-ox-btns button{opacity:0;transition:opacity 150ms ease-in}
.ds-ox-exp{min-height:48px;display:flex;align-items:center;justify-content:center;text-align:center;padding:10px 16px;border-radius:12px;background:var(--surface);box-shadow:inset 0 0 0 1px var(--line);font-size:15px;font-weight:600;color:var(--ink-2);
  clip-path:inset(0 50% 0 0 round 12px);visibility:hidden;transition:clip-path var(--t-close) var(--ease-close),visibility 0s var(--t-close)}
.ds-ox[data-state="x"] .ds-ox-exp{clip-path:inset(0 0 0 50% round 12px)}
.ds-ox[data-state] .ds-ox-exp{clip-path:inset(0 0 0 0 round 12px);visibility:visible;transition:clip-path var(--t-open) var(--ease-open),visibility 0s}
.ds-ox-exp span{opacity:0;transition:opacity 140ms ease-in}
.ds-ox[data-state] .ds-ox-exp span{opacity:1;transition:opacity 260ms ease-out 68ms}
.ds-ox-back{display:grid;grid-template-rows:0fr;transition:grid-template-rows var(--t-close) var(--ease-close)}
.ds-ox[data-state] .ds-ox-back{grid-template-rows:1fr;transition:grid-template-rows var(--t-open) var(--ease-open) 120ms}
.ds-ox-back > div{min-height:0;overflow:hidden}
.ds-ox-sum{margin:12px 0 0;padding:14px 16px;border-radius:12px;box-shadow:inset 0 0 0 1px var(--line);font-size:15px;color:var(--ink-2)}
.ds-ox-sum p{margin:0 0 4px;font-size:13px;font-weight:700;color:var(--muted)}
.ds-ox-sum ul{margin:0;padding-left:18px}
.ds-ox-sum li{line-height:1.7}
.ds-ox .ds-row-in{opacity:0;transform:translateY(6px);transition:opacity 140ms ease-in,transform 140ms ease-in}
.ds-ox[data-state] .ds-row-in{opacity:1;transform:none;transition:opacity var(--t-row) var(--ease-row),transform var(--t-row) var(--ease-row);transition-delay:calc(200ms + var(--i,0) * var(--stagger))}
.ds-ox-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:44px;margin-top:14px;font-size:14px;color:var(--muted)}
.ds-ox-res{display:none;font-weight:700}
.ds-ox[data-result="ok"] ~ .ds-ox-foot .ds-ox-res.ok{display:inline;color:var(--ok)}
.ds-ox[data-result="bad"] ~ .ds-ox-foot .ds-ox-res.bad{display:inline;color:var(--bad-ink)}
.ds-ox[data-state] ~ .ds-ox-foot .ds-ox-hint{display:none}
.ds-ox-again{visibility:hidden;opacity:0;transition:opacity 150ms}
.ds-ox[data-state] ~ .ds-ox-foot .ds-ox-again{visibility:visible;opacity:1}
.ds-ox-cap{margin:6px 0 0;font-size:13px;color:var(--muted)}

/* photo frames (not pressable: hairline, no shadow) */
.ds-photo{margin:0;border-radius:var(--r-surface);overflow:hidden;box-shadow:0 0 0 1px var(--line);background:var(--surface)}
.ds-photo img{display:block;width:100%;height:auto}
.ds-photo.phone{max-width:300px;border-radius:32px}
.ds-photo.card{max-width:520px}

/* ---------- download (dl1, 기기로) ---------- */
.ds-stores{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));background:var(--surface);border-radius:var(--r-surface);box-shadow:var(--hair),0 0 0 1px var(--line)}
.ds-stores li{padding:24px;display:flex;flex-direction:column;gap:4px;min-width:0}
.ds-stores li + li{box-shadow:-1px 0 0 var(--line)}
.ds-store{font-size:18px;font-weight:700;letter-spacing:-.01em}
.ds-dev{font-size:14px;color:var(--muted)}
.ds-state{margin-top:16px;display:flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--ink-2)}
.ds-gets{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px}

/* ---------- features (ft1) ---------- */
.ds-scenes{display:grid;gap:96px}
.ds-scene{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:48px;align-items:start}
.ds-scene h3{margin:0;font-size:28px;font-weight:700;letter-spacing:-.02em;line-height:1.35}
.ds-scene p{margin:10px 0 0;color:var(--ink-2)}
.ds-scene-txt{position:sticky;top:24px;padding-top:8px}
.ds-scene ul{list-style:none;margin:20px 0 0;padding:0}
.ds-scene li{padding:12px 0;border-top:1px solid var(--line);font-size:15px;color:var(--ink-2)}
.ds-scene li b{display:block;color:var(--ink);font-size:16px;font-weight:600}

/* ---------- page head (all pages but home) ---------- */
.ds-page-head{padding-block:56px 0;max-width:760px}
.ds-page-head h1{margin:0;font-size:40px;font-weight:700;letter-spacing:-.025em;line-height:1.3}
.ds-lede{margin:12px 0 0;font-size:18px;color:var(--ink-2)}

/* ---------- subjects and prices (sj1 + pr1) ---------- */
.ds-sale{display:flex;align-items:flex-start;gap:10px;margin:24px 0 0;padding:14px 18px;border-radius:var(--r-row);background:var(--field);font-size:15px;color:var(--ink-2);max-width:760px}
.ds-sale .ds-dot{margin-top:9px;background:var(--warn)}
.ds-sale b{color:var(--ink)}
.ds-prices{width:100%;border-collapse:collapse;background:var(--surface);border-radius:var(--r-surface);box-shadow:var(--hair),0 0 0 1px var(--line);overflow:hidden;font-variant-numeric:tabular-nums}
.ds-prices-cap{margin:0 0 12px;font-size:14px;color:var(--muted)}
.ds-prices th,.ds-prices td{padding:16px 24px;text-align:left;vertical-align:baseline;border-top:1px solid var(--line)}
.ds-prices thead th{border-top:0;font-size:14px;font-weight:600;color:var(--muted);padding-block:16px 12px}
.ds-prices thead th:not(:first-child),.ds-prices td{text-align:right}
.ds-prices tbody th{font-size:17px;font-weight:600}
.ds-prices tbody th small{display:block;margin-top:2px;font-size:14px;font-weight:500;color:var(--muted)}
.ds-prices td{font-size:17px;font-weight:600;white-space:nowrap}
.ds-prices td .ds-won{font-weight:500;color:var(--ink-2)}
.ds-prices tr.grp th{padding-block:22px 6px;font-size:14px;font-weight:600;color:var(--muted);border-top:1px solid var(--line)}
.ds-prices tbody tr.grp:first-child th{border-top:0}
.ds-prices tr.grp + tr th,.ds-prices tr.grp + tr td{border-top:0}
.ds-prices td.ds-soon{color:var(--muted);font-weight:500}
.ds-facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 40px;margin:40px 0 0;padding:0;max-width:960px}
.ds-facts div{min-width:0;padding-top:14px;border-top:1px solid var(--line)}
.ds-facts dt{font-size:14px;color:var(--muted);font-weight:600}
.ds-facts dd{margin:4px 0 0;font-size:16px;color:var(--ink)}

/* ---------- docs frame (gd1): guide 7 + terms + privacy ---------- */
.ds-doc{display:grid;grid-template-columns:240px minmax(0,680px);gap:64px;padding-block:56px 0}
.ds-side{position:sticky;top:24px;align-self:start}
.ds-side h2{margin:0 0 6px;padding-left:12px;font-size:13px;font-weight:600;color:var(--muted)}
.ds-side ul{list-style:none;margin:0 0 24px;padding:0}
.ds-side a{display:flex;align-items:center;min-height:38px;padding:0 12px;border-radius:var(--r-row);font-size:15px;color:var(--ink-2)}
.ds-side a:hover{background:var(--hover);color:var(--ink)}
.ds-side a[aria-current="page"]{background:var(--accent-soft);color:var(--accent-ink);font-weight:600}
.ds-toc{display:none}
.ds-art{min-width:0}
.ds-art h1{margin:0;font-size:36px;font-weight:700;letter-spacing:-.02em;line-height:1.3}
.ds-art .ds-lede{margin:10px 0 0}
.ds-art .ds-meta{margin:8px 0 0;font-size:14px;color:var(--muted)}
.ds-art h2{margin:48px 0 16px;font-size:22px;font-weight:700;letter-spacing:-.01em;line-height:1.4;scroll-margin-top:24px}
.ds-art h3{margin:20px 0 6px;font-size:18px;font-weight:700;line-height:1.45}
.ds-art p{margin:0 0 14px}
.ds-art ul,.ds-art ol{margin:0 0 16px;padding-left:22px}
.ds-art li{margin:4px 0}
.ds-art dl{margin:0 0 16px}
.ds-art dt{margin-top:14px}
.ds-art dd{margin:4px 0 0;color:var(--ink-2)}
.ds-art code{font-family:ui-monospace,Menlo,monospace;font-size:.88em;background:var(--field);border-radius:6px;padding:1px 6px}
.ds-callout{margin:24px 0 0;padding:16px 18px;border-radius:var(--r-row);background:var(--field);color:var(--ink-2);font-size:16px}
.ds-callout p:last-child{margin-bottom:0}
.ds-callout strong{color:var(--ink)}
.ds-steps{list-style:none;margin:0 0 8px!important;padding:0!important;counter-reset:s}
.ds-steps li{counter-increment:s;display:grid;grid-template-columns:32px minmax(0,1fr);gap:2px 14px;padding:14px 0;margin:0;border-bottom:1px solid var(--line)}
.ds-steps li::before{content:counter(s);grid-row:span 2;width:28px;height:28px;border-radius:50%;background:var(--field);display:grid;place-items:center;font-size:14px;font-weight:700;margin-top:2px}
.ds-steps li h3{margin:0;font-size:17px;line-height:1.6}
.ds-steps li p{margin:0;color:var(--ink-2);font-size:16px}
.ds-pn{display:flex;justify-content:space-between;gap:16px;margin-top:48px;padding-top:20px;border-top:1px solid var(--line);font-size:15px}
.ds-art .ds-pn a{display:flex;flex-direction:column;gap:2px;color:var(--ink);font-weight:600}
.ds-art .ds-pn a:hover{text-decoration:underline;text-underline-offset:3px}
.ds-pn a span{font-size:13px;color:var(--muted);font-weight:500}
.ds-pn a:last-child{text-align:right;margin-left:auto}
.ds-doc-list{list-style:none;margin:8px 0 0!important;padding:0!important}
.ds-doc-list li{margin:0;border-bottom:1px solid var(--line)}
.ds-doc-list a{display:block;padding:14px 0}
.ds-doc-list a b{display:block;font-size:17px;color:var(--ink)}
.ds-doc-list a span{font-size:15px;color:var(--ink-2)}
.ds-doc-list a:hover b{text-decoration:underline;text-underline-offset:3px}
/* tables inside docs */
.table-scroll{overflow-x:auto;margin:0 0 16px;border-radius:var(--r-row);box-shadow:0 0 0 1px var(--line)}
.ds-art table{width:100%;border-collapse:collapse;font-size:15px;background:var(--surface)}
.ds-art caption{caption-side:top;text-align:left;padding:12px 14px 4px;font-size:14px;color:var(--muted)}
.ds-art th,.ds-art td{padding:10px 14px;text-align:left;vertical-align:top;border-top:1px solid var(--line)}
.ds-art thead th{border-top:0;color:var(--muted);font-weight:600;font-size:14px}
/* small demos kept from the old guide (learning-demos.js) */
.interactive-demo{margin:8px 0 12px;padding:20px;border-radius:var(--r-surface);background:var(--surface);box-shadow:0 0 0 1px var(--line)}
.interactive-demo fieldset{border:0;margin:0 0 14px;padding:0;min-width:0}
.interactive-demo legend{padding:0;margin-bottom:10px;font-size:18px;font-weight:600;color:var(--ink)}
.radio-options,.check-options,.filter-options{display:flex;flex-wrap:wrap;gap:8px}
.radio-options label,.check-options label{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 16px;border-radius:22px;background:var(--field);font-size:15px;font-weight:600;cursor:pointer}
.radio-options input,.check-options input{width:18px;height:18px;margin:0;accent-color:var(--accent)}
.filter-options{margin:12px 0}
.filter-options button{height:40px;padding:0 14px;border:0;border-radius:20px;background:var(--field);font-size:14px;font-weight:600;cursor:pointer;transition:scale 180ms var(--ease-open)}
.filter-options button:active{scale:.97}
.filter-options button[aria-pressed="true"]{background:var(--accent);color:var(--on-accent)}
.interactive-demo .button,.content-actions .button{display:inline-flex;align-items:center;height:44px;padding:0 20px;border:0;border-radius:22px;font-size:15px;font-weight:600;cursor:pointer;background:var(--surface);color:var(--ink);box-shadow:var(--sh-1),var(--hair);text-decoration:none;transition:scale 180ms var(--ease-open),box-shadow 150ms}
.interactive-demo .button:hover{box-shadow:var(--sh-2),var(--hair)}
.interactive-demo .button:active{scale:.97}
.demo-reset{margin-top:10px;height:40px;padding:0 16px;border:0;border-radius:20px;background:var(--field);font-size:14px;font-weight:600;cursor:pointer}
.demo-result{margin:12px 0 0;font-size:15px;color:var(--ink-2)}
.demo-result:empty{display:none}
.demo-result strong{display:block;color:var(--ink)}
.demo-result[data-correct="true"] strong{color:var(--ok)}
.demo-result[data-correct="false"] strong{color:var(--bad-ink)}
.demo-result p{margin:4px 0 0}
.demo-disclosure{font-size:14px;color:var(--muted)}
.example-label{display:block;font-size:13px;font-weight:600;color:var(--muted)}
.info-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:0 0 12px}
.info-grid article,.widget-board article,.comparison-grid article{padding:16px;border-radius:var(--r-row);background:var(--field)}
.info-grid h3,.comparison-grid h3{margin:0 0 6px;font-size:16px}
.info-grid p,.widget-board p,.comparison-grid p{margin:0;font-size:15px;color:var(--ink-2)}
.widget-board{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:4px}
.widget-board strong{display:block;margin:2px 0 4px}
.example-bars{display:flex;align-items:flex-end;gap:6px;height:36px;margin-top:10px}
.example-bars i{flex:1;border-radius:4px 4px 0 0;background:color-mix(in srgb,var(--accent) 45%,transparent)}
.example-bars i:nth-child(1){height:40%}.example-bars i:nth-child(2){height:75%}.example-bars i:nth-child(3){height:55%}.example-bars i:nth-child(4){height:90%}.example-bars i:nth-child(5){height:30%}
.comparison-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-bottom:14px}
.comparison-grid h3{font-weight:600;font-size:17px}
[data-comparison-change]{border-radius:4px;transition:background-color 200ms,box-shadow 200ms}
[data-comparison-change].is-highlighted{background:var(--accent-soft);box-shadow:0 0 0 2px var(--accent-soft);color:var(--accent-ink)}
.field-label{display:block;font-size:14px;font-weight:600;margin-bottom:6px}
.interactive-demo input[type="search"]{width:100%;height:44px;border:0;border-radius:var(--r-row);background:var(--field);padding:0 14px;font-size:16px}
.interactive-demo input[type="search"]:focus{outline:1.5px solid var(--accent);outline-offset:0}
.input-help{margin:6px 0 0;font-size:14px;color:var(--muted)}
.search-results{list-style:none;margin:8px 0 0!important;padding:0!important}
.search-results li{display:flex;flex-direction:column;padding:10px 0;margin:0;border-top:1px solid var(--line)}
.search-results li span{font-size:14px;color:var(--muted)}
.interval-illustration{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:12px;margin:8px 0 0;font-size:15px}
.interval-track{height:10px;border-radius:5px;background:var(--field);overflow:hidden}
.interval-track span{display:block;height:100%;border-radius:5px;background:var(--accent);transition:width var(--t-open) var(--ease-open)}

/* ---------- updates · support · admin panels (functions unchanged) ---------- */
.ds-page{padding-bottom:0}
.ds-block{margin-top:56px;max-width:760px}
.ds-block > h2{margin:0 0 16px;font-size:24px;font-weight:700;letter-spacing:-.01em;line-height:1.4;scroll-margin-top:24px}
.ds-block > p{color:var(--ink-2)}
.list-stack{display:grid;gap:12px}
.list-item{padding:20px;border-radius:var(--r-surface);background:var(--surface);box-shadow:0 0 0 1px var(--line);margin-bottom:12px}
.list-item h3{margin:4px 0 8px;font-size:18px;line-height:1.45}
.list-item p{margin:0}
.time-label,.status-label{display:inline-block;margin-right:10px;font-size:14px;color:var(--muted)}
.status-label{font-weight:600;color:var(--ink-2)}
.plain-text{white-space:pre-wrap;color:var(--ink-2)}
.empty-state,.ds-empty{margin:0;padding:20px;border-radius:var(--r-surface);background:var(--field);color:var(--ink-2);font-size:16px}
.ds-empty h3{margin:0 0 4px;font-size:17px;color:var(--ink)}
.ds-empty p{margin:0}
details.cms-faq{border-bottom:1px solid var(--line)}
details.cms-faq summary{display:flex;justify-content:space-between;gap:16px;align-items:center;min-height:56px;padding:12px 0;font-size:17px;font-weight:600;cursor:pointer;list-style:none}
details.cms-faq summary::-webkit-details-marker{display:none}
details.cms-faq summary::after{content:"";flex:none;width:10px;height:10px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:rotate(45deg) translateY(-3px);transition:transform 220ms var(--ease-open)}
details.cms-faq[open] summary::after{transform:rotate(-135deg) translateY(-3px)}
details.cms-faq .plain-text{margin:0 0 16px;font-size:16px}
.app-panel{margin:0 0 16px;padding:24px;border-radius:var(--r-surface);background:var(--surface);box-shadow:var(--sh-1),var(--hair)}
.app-panel > h2,.app-panel h2{margin:0 0 8px;font-size:20px;font-weight:700;line-height:1.4}
.app-panel p{margin:0 0 12px;color:var(--ink-2)}
.notice-box{margin:0 0 16px;padding:16px 18px;border-radius:var(--r-row);background:var(--field);color:var(--ink-2)}
.notice-box h2{margin:0 0 6px;font-size:18px;color:var(--ink)}
.notice-box strong{display:block;color:var(--ink);margin-bottom:4px}
.notice-box p{margin:0}
.message{margin:0 0 16px;padding:14px 18px;border-radius:var(--r-row);background:var(--accent-soft);color:var(--ink);font-size:15px}
.message[data-kind="error"]{background:color-mix(in srgb,var(--bad) 12%,var(--surface));color:var(--ink)}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 16px}
.form-field{margin:0 0 16px;min-width:0}
.form-field label,.action-row label{display:block;font-size:14px;font-weight:600;margin-bottom:6px}
.form-field small{display:block;margin-top:6px;font-size:13px;color:var(--muted)}
.app-panel input:not([type="checkbox"]):not([type="radio"]),.app-panel select,.app-panel textarea{width:100%;min-height:44px;border:0;border-radius:var(--r-row);background:var(--field);color:var(--ink);padding:10px 14px;font-size:16px}
.app-panel textarea{min-height:140px;resize:vertical;line-height:1.6}
.app-panel input:focus,.app-panel select:focus,.app-panel textarea:focus{outline:1.5px solid var(--accent);outline-offset:0}
.app-panel ::placeholder{color:var(--muted)}
.action-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 12px;margin:0 0 12px}
.action-row h2{margin:0;margin-right:auto}
.action-row select{width:auto!important}
.action-button{display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 20px;border:0;border-radius:22px;font-size:15px;font-weight:600;cursor:pointer;text-decoration:none;white-space:nowrap;background:var(--accent);color:var(--on-accent);box-shadow:var(--sh-accent);transition:scale 180ms var(--ease-open),box-shadow 150ms}
.action-button:active{scale:.97}
.action-button.secondary{background:var(--surface);color:var(--ink);box-shadow:var(--sh-1),var(--hair)}
.action-button[disabled]{opacity:.55;cursor:default}
.app-panel label:has(> input[type="checkbox"]){display:flex;gap:10px;align-items:flex-start;font-size:15px}
.app-panel input[type="checkbox"]{width:20px;height:20px;margin:3px 0 0;accent-color:var(--accent);flex:none}
.data-table-wrap{overflow-x:auto}
.data-table{width:100%;border-collapse:collapse;font-size:14px;font-variant-numeric:tabular-nums}
.data-table caption{text-align:left;padding-bottom:8px;color:var(--muted)}
.data-table th,.data-table td{padding:8px 10px;border-top:1px solid var(--line);text-align:right;white-space:nowrap}
.data-table th:first-child{text-align:left}
.content-picker{display:grid;gap:6px}
.content-picker button{display:flex;flex-direction:column;align-items:flex-start;gap:2px;padding:12px 14px;border:0;border-radius:var(--r-row);background:var(--field);text-align:left;cursor:pointer}
.content-picker button[aria-pressed="true"]{background:var(--accent-soft);color:var(--accent-ink)}
.content-picker small{font-size:13px;color:var(--muted)}
.preview-box{margin-top:16px;padding:16px;border-radius:var(--r-row);box-shadow:inset 0 0 0 1px var(--line)}
.admin-tabs{display:inline-flex;gap:4px;padding:3px;border-radius:12px;background:var(--field);margin:0 0 20px}
.admin-tabs button{height:36px;padding:0 16px;border:0;border-radius:9px;background:none;font-size:14px;font-weight:600;color:var(--ink-2);cursor:pointer}
.admin-tabs button[aria-selected="true"]{background:var(--surface);color:var(--ink);box-shadow:var(--sh-1),var(--hair)}
.ds-admin{margin-top:32px}
.admin-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,2fr);gap:16px;align-items:start}

/* ---------- footer (fo1) ---------- */
.ds-foot{margin-top:128px;padding-block:40px 48px;border-top:1px solid var(--line)}
.ds-foot-top{display:flex;flex-wrap:wrap;gap:16px 40px;align-items:center}
.ds-foot-links{display:flex;flex-wrap:wrap;gap:8px 24px;font-size:15px;color:var(--ink-2)}
.ds-foot-links a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
.ds-foot-links b{color:var(--ink)}
.ds-biz{margin:24px 0 0;font-size:14px;line-height:1.8;color:var(--muted)}
.ds-biz span{white-space:nowrap}
.ds-biz span + span::before{content:"·";margin:0 8px}
.ds-biz span.br{display:block;height:0;overflow:hidden}
.ds-biz span.br + span::before{content:none}
.ds-copy{margin:8px 0 0;font-size:14px;color:var(--muted)}

/* ---------- 404 / moved ---------- */
.ds-center{padding-block:96px 0;max-width:560px}
.ds-center h1{margin:0;font-size:32px;font-weight:700;letter-spacing:-.02em}
.ds-center p{color:var(--ink-2)}

/* ---------- tablet ---------- */
@media (max-width: 1023px){
  .ds-nav{gap:20px}
  .ds-head-row{gap:28px}
  .ds-hero-grid{grid-template-columns:minmax(0,1fr);gap:40px}
  .ds-stage{max-width:600px}
  .ds-stores{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ds-stores li:nth-child(3){box-shadow:0 -1px 0 var(--line)}
  .ds-stores li:nth-child(4){box-shadow:-1px 0 0 var(--line),0 -1px 0 var(--line)}
  .ds-scene{grid-template-columns:minmax(0,1fr);gap:20px}
  .ds-scene-txt{position:static}
  .ds-doc{grid-template-columns:200px minmax(0,1fr);gap:40px}
  .admin-layout{grid-template-columns:minmax(0,1fr)}
}
/* ---------- phone ---------- */
@media (max-width: 759px){
  body{font-size:16px}
  .ds-wrap{padding-inline:20px}
  .ds-head-row{height:72px;gap:12px}
  .ds-nav,.ds-head-end .ds-login{display:none}
  .ds-head-end{margin-left:auto}
  .ds-menu-btn{display:inline-flex;position:relative;z-index:3;width:92px;padding:0 14px;gap:10px}
  .is-open .ds-menu-btn{box-shadow:none;background:var(--field)}
  .ds-mnav{display:block;position:relative;z-index:2}
  .ds-mnav .ds-grow-sheet{margin-top:-58px;--btn-w:92px}
  .ds-h2{font-size:28px}
  .ds-sec{padding-block:64px 0}
  .ds-sec.tight{padding-top:40px}
  .ds-sec-head{margin-bottom:28px}
  .ds-hero{padding-top:12px}
  .ds-wordmark{font-size:calc((100vw - 40px) / 10.4)}
  .ds-marquee{margin-top:18px;height:34px}
  .ds-mq-track span{font-size:12px}
  .ds-hero-grid{padding-top:36px;gap:32px}
  .ds-hero h1{font-size:32px}
  .ds-hero-sub{font-size:16px}
  .ds-actions .ds-cap,.ds-cap.big{height:48px;border-radius:24px;padding:0 24px}
  .ds-ox{padding:16px 12px 12px;border-radius:22px}
  .ds-ox-title{font-size:19px}
  .ds-ox-q p{font-size:17px}
  .ds-stores{grid-template-columns:minmax(0,1fr)}
  .ds-stores li{padding:18px 20px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:2px 12px;align-items:center}
  .ds-stores li + li,.ds-stores li:nth-child(3),.ds-stores li:nth-child(4){box-shadow:0 -1px 0 var(--line)}
  .ds-stores .ds-dev{grid-column:1}
  .ds-stores .ds-state,.ds-stores .ds-gets{grid-column:2;grid-row:1 / span 2;margin-top:0}
  .ds-scenes{gap:64px}
  .ds-scene h3{font-size:23px}
  .ds-page-head{padding-top:32px}
  .ds-page-head h1{font-size:30px}
  .ds-lede{font-size:16px}
  .ds-prices,.ds-prices thead,.ds-prices tbody,.ds-prices tr,.ds-prices th,.ds-prices td{display:block}
  .ds-prices thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
  .ds-prices tbody tr{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:2px 8px;padding:14px 16px;border-top:1px solid var(--line)}
  .ds-prices tbody tr.grp{display:block;padding:20px 16px 0}
  .ds-prices tbody tr.grp:first-child{border-top:0}
  .ds-prices tr.grp + tr{border-top:0}
  .ds-prices th,.ds-prices td{padding:0;border:0!important;text-align:left!important}
  .ds-prices tbody th{grid-column:1 / -1;margin-bottom:6px}
  .ds-prices td{font-size:16px}
  .ds-prices td::before{content:attr(data-label);display:block;font-size:13px;font-weight:500;color:var(--muted)}
  .ds-prices td.ds-soon{grid-column:1 / -1}
  .ds-prices td.ds-soon::before{content:none}
  .ds-facts{grid-template-columns:minmax(0,1fr);gap:14px}
  .ds-doc{grid-template-columns:minmax(0,1fr);gap:0;padding-top:24px}
  .ds-side{display:none}
  .ds-toc{display:block;position:relative;z-index:2;margin-bottom:28px}
  .ds-toc-btn{position:relative;z-index:3;justify-content:space-between;width:100%;max-width:100%}
  .ds-toc-btn > span:first-child{overflow:hidden;text-overflow:ellipsis}
  .ds-toc .ds-grow-sheet{margin-top:-44px;clip-path:inset(0 0 calc(100% - 44px) 0 round 22px)}
  .ds-toc.is-open .ds-grow-sheet{clip-path:inset(0 0 0 0 round var(--r-surface))}
  .is-open .ds-toc-btn{box-shadow:none;background:var(--field)}
  .ds-toc .ds-side-in{padding:56px 8px 8px}
  .ds-toc .ds-side-in h2{margin:8px 0 2px;padding-left:12px;font-size:13px;font-weight:600;color:var(--muted)}
  .ds-toc .ds-side-in ul{list-style:none;margin:0;padding:0}
  .ds-toc .ds-side-in a{display:flex;align-items:center;min-height:44px;padding:0 12px;border-radius:var(--r-row);font-size:16px}
  .ds-toc .ds-side-in a[aria-current="page"]{background:var(--accent-soft);color:var(--accent-ink);font-weight:600}
  .ds-art h1{font-size:28px}
  .ds-art h2{font-size:20px;margin-top:40px}
  .info-grid,.widget-board,.comparison-grid,.form-grid{grid-template-columns:minmax(0,1fr)}
  .app-panel{padding:20px}
  .ds-block{margin-top:40px}
  .ds-foot{margin-top:88px;padding-block:32px 40px}
  .ds-biz span{display:block;white-space:normal}
  .ds-biz span + span::before{content:none}
  .ds-biz span.br{display:none}
}
@media (max-width: 420px){
  .ds-ox-path > span{padding:0 10px}
  .ds-ox-core{min-width:72px}
}
@supports (corner-shape: superellipse(2)){
  .ds-cap,.ds-ox,.ds-grow-sheet,.ds-photo,.ds-stores,.ds-prices,.app-panel,.action-button{corner-shape:superellipse(1.6)}
}
@media (prefers-reduced-motion: reduce){
  /* 동작 줄이기: 위치·크기는 바로 바꾸고 opacity 150ms만 남긴다(STANDARD 2절 7항). */
  *,*::before,*::after{animation:none!important;transition-property:opacity!important;transition-duration:150ms!important;transition-delay:0s!important;transition-timing-function:linear!important}
  .ds-grow-sheet,.ds-ox-exp{transition-property:opacity,visibility!important}
  .ds-grow-sheet,.ds-ox-exp{opacity:0}
  .is-open .ds-grow-sheet,.ds-ox[data-state] .ds-ox-exp{opacity:1}
  .ds-row-in,.ds-ox .ds-row-in,.ds-swap > div{transform:none!important}
  .ds-cap:active,.ds-ox-btns button:active,.filter-options button:active,.action-button:active,.account-primary:active,.account-outline:active,.pick-btns button:active{scale:none!important}
}