/* base reset */
html,body{margin:0;padding:0}
img{max-width:100%}
[hidden]{display:none!important}

/* Layout: prototype bar → (A) board management home: folder rail + board grid
   (B) master board: board-themed stage with columns  (C) participant: phone frame with swipeable panes */
:root{
  --bg:#E6E9EE; --surface:#F6F7F9; --raised:#FFFFFF; --ink:#1B2232; --muted:#5A6377; --line:#CBD1DA;
  --accent:#2D55C8; --accent-ink:#FFFFFF; --ok:#1F7A4D; --off:#8A5A12; --danger:#B42318;
  --shadow:0 1px 0 rgba(27,34,50,.08),0 6px 14px -8px rgba(27,34,50,.35);
  --qr-bg:#FFFFFF;
  --f-display:"Gowun Batang","Nanum Myeongjo","AppleMyungjo",serif;
  --f-body:"IBM Plex Sans KR","Apple SD Gothic Neo","Malgun Gothic",system-ui,sans-serif;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#12161F; --surface:#1A1F2A; --raised:#222836; --ink:#E6E9F0; --muted:#9AA3B5; --line:#2E3545;
  --accent:#86A6FF; --accent-ink:#0E1424; --ok:#6FD3A0; --off:#E9B65E; --danger:#FF8A80;
  --shadow:0 1px 0 rgba(0,0,0,.4),0 8px 18px -10px rgba(0,0,0,.8);
  color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#12161F; --surface:#1A1F2A; --raised:#222836; --ink:#E6E9F0; --muted:#9AA3B5; --line:#2E3545;
  --accent:#86A6FF; --accent-ink:#0E1424; --ok:#6FD3A0; --off:#E9B65E; --danger:#FF8A80;
  --shadow:0 1px 0 rgba(0,0,0,.4),0 8px 18px -10px rgba(0,0,0,.8);
  color-scheme:dark}
*{box-sizing:border-box}
body{background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:14px;line-height:1.55}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:10;background:var(--surface)}
body.is-dragging{cursor:grabbing;user-select:none;-webkit-user-select:none}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.wrap{padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}

/* prototype bar */
.bar{position:sticky;top:env(safe-area-inset-top,0px);z-index:5;background:var(--surface);border-bottom:1px solid var(--line)}
.bar-in{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding-block:10px}
.brand{font-family:var(--f-display);font-size:18px;margin-right:auto;display:flex;align-items:baseline;gap:8px}
.brand small{font-family:var(--f-body);font-size:11px;color:var(--muted);letter-spacing:.06em}
.seg{display:inline-flex;background:var(--bg);border:1px solid var(--line);border-radius:999px;padding:3px;flex-wrap:wrap}
.seg button{border:0;background:none;padding:6px 12px;border-radius:999px;font-size:13px;color:var(--muted)}
.seg button[aria-pressed="true"]{background:var(--raised);color:var(--ink);font-weight:600;box-shadow:var(--shadow)}
.proto{font-size:11px;color:var(--off);border:1px dashed currentColor;border-radius:4px;padding:2px 6px;letter-spacing:.03em}

.btn{border:1px solid var(--line);background:var(--surface);color:var(--ink);padding:8px 14px;border-radius:8px;font-size:13px;font-weight:500;display:inline-flex;gap:6px;align-items:center}
.btn:hover{border-color:var(--muted)}
.btn.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.btn.danger{background:var(--danger);color:#fff;border-color:var(--danger)}
.btn svg{width:16px;height:16px;flex:none}
.master{font-size:10.5px;font-weight:600;letter-spacing:.04em;color:var(--muted);border:1px solid var(--line);border-radius:4px;padding:0 4px}

/* ---------- A. management home ---------- */
.home{display:grid;grid-template-columns:210px minmax(0,1fr);gap:28px;padding-block:24px 56px}
.rail{display:flex;flex-direction:column;gap:2px;position:sticky;top:70px;align-self:start}
.rail .search{border:1px solid var(--line);background:var(--surface);border-radius:8px;padding:8px 10px;margin-bottom:12px;width:100%}
.rail .lab{font-size:11px;color:var(--muted);letter-spacing:.06em;margin:14px 0 4px 8px}
.fbtn{border:0;background:none;text-align:left;padding:8px 10px;border-radius:8px;display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--ink)}
.fbtn:hover{background:var(--surface)}
.fbtn[aria-current="true"]{background:var(--raised);font-weight:600;box-shadow:var(--shadow)}
.fbtn .n{margin-left:auto;font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
.home-h{display:flex;align-items:flex-end;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.home-h h1{font-family:var(--f-display);font-size:28px;margin:0;line-height:1.2}
.home-h p{margin:0;color:var(--muted);font-size:13px}
.sort{margin-left:auto;display:flex;gap:4px;font-size:12.5px}
.sort button{border:0;background:none;color:var(--muted);padding:4px 6px;border-radius:6px}
.sort button[aria-pressed="true"]{color:var(--accent);font-weight:600}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:22px 18px}
.bcard{display:flex;flex-direction:column;gap:8px;position:relative;min-width:0}
.thumb{border:0;padding:0;border-radius:10px;aspect-ratio:16/10;max-width:100%;width:100%;position:relative;overflow:hidden;background:var(--tb);box-shadow:var(--shadow);display:flex;align-items:flex-end;gap:6px;padding:0 12px 12px;text-align:left}
.thumb .mc{flex:1;display:flex;flex-direction:column;gap:4px;height:62%;max-width:44px}
.thumb .mc i{display:block;height:7px;border-radius:2px}
.thumb .mc b{display:block;background:var(--tc,#fff);border-radius:2px;flex:none}
.thumb .live{position:absolute;top:10px;left:10px;font-size:11px;font-weight:600;background:var(--raised);color:var(--ok);border-radius:999px;padding:2px 8px;display:flex;gap:5px;align-items:center}
.thumb .live i{width:6px;height:6px;border-radius:50%;background:currentColor}
.thumb.new{background:var(--surface);border:1.5px dashed var(--line);box-shadow:none;align-items:center;justify-content:center;color:var(--muted);font-size:30px;padding:0}
.binfo{display:flex;gap:6px;align-items:flex-start}
.binfo div{min-width:0;flex:1}
.binfo b{display:block;font-size:13.5px;font-weight:600;overflow-wrap:anywhere;line-height:1.35}
.binfo span{font-size:12px;color:var(--muted)}
.dots{border:0;background:none;color:var(--muted);padding:2px 6px;border-radius:6px;font-size:16px;line-height:1}
.dots:hover{background:var(--surface);color:var(--ink)}
.menu{position:absolute;right:0;top:calc(100% - 36px);z-index:8;background:var(--raised);border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow);padding:6px;min-width:180px;display:flex;flex-direction:column}
.menu button{border:0;background:none;text-align:left;padding:8px 10px;border-radius:6px;font-size:13px}
.menu button:hover{background:var(--surface)}
.menu .sep{height:1px;background:var(--line);margin:4px 2px}
.menu .del{color:var(--danger)}
.menu p{margin:4px 8px 6px;font-size:12.5px}
.menu .row{display:flex;gap:6px;padding:0 4px 4px}
.menu .row button{flex:1;text-align:center;border:1px solid var(--line)}
.menu .row .yes{background:var(--danger);color:#fff;border-color:var(--danger)}
.empty-home{padding:48px 16px;text-align:center;color:var(--muted)}

/* ---------- B. master board ---------- */
.stage{background:var(--board-bg);color:var(--board-fg);min-height:calc(100vh - 56px)}
.back{display:inline-flex;align-items:center;gap:4px;border:0;background:color-mix(in srgb,var(--board-fg) 14%,transparent);color:inherit;font-size:12.5px;padding:5px 10px;border-radius:999px;margin-top:14px}
.bh-in{display:flex;gap:16px;align-items:flex-end;flex-wrap:wrap;padding-block:14px 4px}
.bh-title{min-width:0;flex:1 1 280px}
.bh-title h1{font-family:var(--f-display);font-size:clamp(22px,3.4vw,30px);line-height:1.2;margin:0;text-wrap:balance;cursor:text}
.title-edit{font-family:var(--f-display);font-size:clamp(22px,3.4vw,30px);font-weight:700;line-height:1.2;width:100%;background:color-mix(in srgb,var(--board-fg) 14%,transparent);color:inherit;border:1px solid currentColor;border-radius:6px;padding:0 8px}
.meta{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:6px;font-size:13px}
.meta .sub{opacity:.8}
.pill{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;padding:3px 9px;border-radius:999px;background:var(--raised)}
.pill.on{color:var(--ok)} .pill.off{color:var(--off)}
.pill i{width:6px;height:6px;border-radius:50%;background:currentColor}
.hint{font-size:12.5px;opacity:.85;margin:10px 0 0}
.actions{display:flex;gap:8px;flex-wrap:wrap}
.cols-scroll{overflow-x:auto;padding-block:18px 48px}
.cols{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(232px,256px);gap:14px;align-items:start;width:max-content}
.col{display:flex;flex-direction:column;gap:8px;min-width:0}
.col-h{background:var(--hc);color:var(--hi);border-radius:4px 4px 0 0;padding:8px 10px;display:flex;align-items:center;gap:8px;min-height:40px;clip-path:polygon(0 0,100% 0,98% 100%,0 100%)}
.col-h b{font-size:15px;font-weight:600;flex:1;min-width:0;overflow-wrap:anywhere;cursor:text}
.col-h .cnt{font-size:12px;font-variant-numeric:tabular-nums;opacity:.75}
.rename{flex:1;min-width:0;border:0;border-radius:3px;padding:1px 6px;font-size:15px;font-weight:600;background:rgba(255,255,255,.85);color:#1B2232}
.col-add{border:0;background:color-mix(in srgb,var(--board-fg) 18%,transparent);color:var(--board-fg);border-radius:4px;padding:7px;font-size:16px;line-height:1}
.col-add:hover{background:color-mix(in srgb,var(--board-fg) 30%,transparent)}
.col-body{display:flex;flex-direction:column;gap:10px;min-height:60px;border-radius:6px;transition:background .15s}
.col-body.over{background:color-mix(in srgb,var(--board-fg) 12%,transparent);outline:2px dashed color-mix(in srgb,var(--board-fg) 55%,transparent);outline-offset:3px}
.newcol{background:var(--raised);color:var(--ink);border-radius:8px;padding:12px;display:flex;flex-direction:column;gap:8px}
.newcol input{border:1px solid var(--line);background:var(--surface);border-radius:6px;padding:8px}
.newcol .row{display:flex;gap:6px}
.addcol-btn{border:1px dashed currentColor;background:none;color:inherit;border-radius:6px;padding:10px 14px;opacity:.85;text-align:left}

/* card: colors come from the board theme (--cb card bg, --ci ink, --cm muted, --cl line, --cs inset) */
.note{background:var(--cb);color:var(--ci);border-radius:8px;box-shadow:0 1px 0 rgba(0,0,0,.06),0 6px 14px -8px rgba(0,0,0,.45);padding:10px 10px 8px;display:flex;flex-direction:column;gap:8px;position:relative;cursor:grab;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}
.note.dragging{opacity:.28}
.note.lifting{transform:scale(1.02);box-shadow:0 0 0 2px var(--accent);transition:transform .2s,box-shadow .2s}
.note.ghost{position:fixed;z-index:50;pointer-events:none;transform:rotate(2.5deg);box-shadow:0 18px 40px -12px rgba(0,0,0,.55);opacity:.95;margin:0}
.note .top{display:flex;align-items:flex-start;gap:6px}
.note h4{margin:0;font-size:14.5px;font-weight:600;flex:1;min-width:0;overflow-wrap:anywhere}
.grip{border:0;background:none;padding:2px 4px;margin:-2px -4px 0 0;color:var(--cm);touch-action:none;cursor:grab;line-height:0}
.grip svg{width:16px;height:16px}
.note p{margin:0;white-space:pre-wrap;overflow-wrap:anywhere;font-size:13.5px}
.note img.ph{display:block;width:100%;height:auto;border-radius:4px;cursor:zoom-in;-webkit-touch-callout:none}
.file{display:flex;gap:10px;align-items:center;border:1px solid var(--cl);border-radius:6px;padding:8px;background:var(--cs);color:var(--ci);text-align:left;width:100%}
.file .ext{flex:none;width:38px;height:46px;border-radius:3px;background:#C9322E;color:#fff;font-size:10px;font-weight:700;display:flex;align-items:flex-end;justify-content:center;padding-bottom:5px;clip-path:polygon(0 0,72% 0,100% 22%,100% 100%,0 100%)}
.file .ext.doc{background:#2B5CB8}.file .ext.etc{background:#5A6377}
.file .fn{min-width:0;display:flex;flex-direction:column;font-size:12.5px}
.file .fn b{font-weight:600;overflow-wrap:anywhere}
.file .fn span{color:var(--cm);font-size:11.5px}
.note .foot{display:flex;align-items:center;gap:2px;border-top:1px solid var(--cl);padding-top:4px}
.foot .sp{flex:1}
.heart,.cbtn{border:0;background:none;display:inline-flex;align-items:center;gap:4px;padding:4px 6px;border-radius:6px;font-size:13px;font-variant-numeric:tabular-nums;color:var(--cm)}
.heart{margin-left:-6px}
.heart svg,.cbtn svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2}
.heart[aria-pressed="true"]{color:#D12F5A}
.heart[aria-pressed="true"] svg{fill:currentColor}
.tiny{border:0;background:none;font-size:12px;color:var(--cm);padding:4px 6px;border-radius:6px}
.tiny:hover,.cbtn:hover{color:var(--ci);background:var(--cs)}
.cmts{display:flex;flex-direction:column;gap:6px;cursor:auto;user-select:text;-webkit-user-select:text}
.cmt{font-size:12.5px;background:var(--cs);border-radius:6px;padding:5px 8px;overflow-wrap:anywhere}
.cmt b{font-weight:600;margin-right:6px}
.cmt time{color:var(--cm);font-size:11px;margin-left:4px}
.cform{display:flex;gap:6px;align-items:center}
.cform input{flex:1;min-width:0;border:1px solid var(--cl);background:var(--cs);color:var(--ci);border-radius:999px;padding:5px 10px;font-size:12.5px}
.cform input::placeholder{color:var(--cm)}
.cform button{border:0;background:none;color:var(--cm);border-radius:6px;padding:4px 6px;font-size:12.5px;font-weight:600}
.cform input:not(:placeholder-shown)+button{color:var(--ci)}

/* ---------- C. participant phone ---------- */
.guest{display:flex;justify-content:center;padding-block:24px 48px}
.phone{width:100%;max-width:390px;height:min(720px,calc(100dvh - 150px));min-height:540px;background:var(--board-bg);color:var(--board-fg);border:1px solid var(--line);border-radius:28px;overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;position:relative}
.ph-top{padding:20px 18px 8px;flex:none}
.ph-top small{font-size:12px;opacity:.8}
.ph-top h2{font-family:var(--f-display);font-size:21px;margin:2px 0 4px;line-height:1.25}
.me{font-size:12px;opacity:.85}
.ph-tabs{display:flex;gap:6px;overflow-x:auto;padding:6px 14px 10px;flex:none;scrollbar-width:none}
.ph-tabs::-webkit-scrollbar{display:none}
.ph-tabs button{flex:none;border:0;background:color-mix(in srgb,var(--board-fg) 16%,transparent);color:inherit;border-radius:999px;padding:6px 12px;font-size:12.5px;display:flex;gap:6px;align-items:center}
.ph-tabs button[aria-selected="true"]{background:var(--hc);color:var(--hi);font-weight:600}
.panes{flex:1;min-height:0;display:flex;overflow-x:auto;overflow-y:hidden;scroll-snap-type:x mandatory;scrollbar-width:none;overscroll-behavior-x:contain;cursor:grab}
.panes::-webkit-scrollbar{display:none}
.panes.free{scroll-snap-type:none;cursor:grabbing}
.pane{flex:0 0 100%;scroll-snap-align:start;overflow-y:auto;padding:4px 14px 80px;display:flex;flex-direction:column;gap:12px;min-height:0}
.pane.over{outline:none}
.edge{position:absolute;top:120px;bottom:0;width:44px;z-index:4;display:flex;align-items:center;justify-content:center;font-size:20px;color:#fff;opacity:0;pointer-events:none;transition:opacity .15s}
.edge.l{left:0;background:linear-gradient(90deg,rgba(0,0,0,.35),transparent)}
.edge.r{right:0;background:linear-gradient(-90deg,rgba(0,0,0,.35),transparent)}
.phone.dragmode .edge{opacity:.55}
.phone.dragmode .edge.hot{opacity:1}
.fab{position:absolute;right:16px;bottom:16px;border:0;background:var(--accent);color:var(--accent-ink);border-radius:999px;padding:12px 18px;font-weight:600;box-shadow:var(--shadow);z-index:3}
.closed{margin:auto 16px;text-align:center;padding:40px 24px;background:var(--raised);color:var(--ink);border-radius:12px}
.empty{font-size:13px;text-align:center;padding:24px 8px;opacity:.85}

/* ---------- dialogs ---------- */
.scrim{position:fixed;inset:0;background:rgba(10,14,22,.5);z-index:20;display:flex;align-items:center;justify-content:center;padding:max(16px,env(safe-area-inset-top,0px)) max(16px,env(safe-area-inset-right,0px)) max(16px,env(safe-area-inset-bottom,0px)) max(16px,env(safe-area-inset-left,0px))}
.scrim.side{justify-content:flex-end;background:rgba(10,14,22,.18)}
.dlg{background:var(--raised);color:var(--ink);border:1px solid var(--line);border-radius:14px;width:100%;max-width:460px;max-height:100%;overflow:auto;padding:20px;display:flex;flex-direction:column;gap:14px}
.dlg h3{font-family:var(--f-display);font-size:20px;margin:0;display:flex;align-items:center;gap:8px}
.field{display:flex;flex-direction:column;gap:5px}
.field>label,.field .lab,.sublab{font-size:12px;font-weight:600;color:var(--muted);letter-spacing:.02em}
.field input:not([type=radio]):not([type=checkbox]):not([type=color]),.field textarea,.field select{border:1px solid var(--line);background:var(--surface);border-radius:8px;padding:9px 10px;width:100%}
.field textarea{min-height:88px;resize:vertical}
.attach{border:1px dashed var(--line);border-radius:8px;padding:12px;display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px;cursor:pointer}
.attach img{width:56px;height:70px;object-fit:cover;border-radius:4px}
.dlg .row{display:flex;gap:8px;justify-content:flex-end;flex-wrap:wrap}
.qrbox{background:var(--qr-bg);border-radius:10px;padding:16px;align-self:center;line-height:0}
.link{display:flex;gap:6px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:6px 6px 6px 10px}
.link code{flex:1;min-width:0;overflow-wrap:anywhere;font-size:12.5px}
.note-sm{font-size:12px;color:var(--muted);margin:0}
.kv{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;font-size:13px;margin:0}
.kv dt{color:var(--muted)} .kv dd{margin:0;overflow-wrap:anywhere}
.choice{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.choice label{border:1px solid var(--line);border-radius:8px;padding:10px;display:flex;flex-direction:column;gap:2px;font-size:13px;cursor:pointer;position:relative}
.choice label:has(input:checked){border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
.choice small{color:var(--muted);font-size:11.5px}
.choice input{position:absolute;opacity:0;pointer-events:none}
.check{display:flex;gap:8px;align-items:flex-start;font-size:13px}
.check input{margin-top:3px}
.movelist{display:flex;flex-direction:column;gap:6px}
.movelist button{display:flex;align-items:center;gap:10px;border:1px solid var(--line);background:var(--surface);border-radius:8px;padding:10px;text-align:left}
.movelist button[aria-current="true"]{opacity:.5}
.movelist .sw{width:14px;height:14px;border-radius:3px}

/* theme panel */
.theme-dlg{max-width:400px;height:100%;border-radius:14px}
.ttabs{display:flex;gap:4px;background:var(--surface);border-radius:10px;padding:3px}
.ttabs button{flex:1;border:0;background:none;padding:7px 6px;border-radius:8px;font-size:13px;color:var(--muted)}
.ttabs button[aria-selected="true"]{background:var(--raised);color:var(--ink);font-weight:600;box-shadow:var(--shadow)}
.presets{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.preset{border:1px solid var(--line);background:var(--surface);border-radius:10px;padding:0;overflow:hidden;text-align:left;display:flex;flex-direction:column}
.preset[aria-pressed="true"]{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent)}
.preset .pv{height:58px;background:var(--pb);display:flex;align-items:flex-end;gap:5px;padding:0 10px 8px}
.preset .pv span{flex:1;display:flex;flex-direction:column;gap:3px;max-width:30px}
.preset .pv i{height:6px;border-radius:2px;display:block}
.preset .pv b{height:14px;border-radius:2px;display:block}
.preset .pn{padding:6px 10px 8px;font-size:12.5px;display:flex;flex-direction:column}
.preset .pn small{color:var(--muted);font-size:11px}
.colorrow{display:flex;align-items:center;gap:10px;font-size:13px;flex-wrap:wrap}
.colorrow input[type=color]{width:42px;height:32px;border:1px solid var(--line);border-radius:6px;background:none;padding:2px;flex:none}
.colorrow input[type=text]{width:96px;border:1px solid var(--line);background:var(--surface);border-radius:6px;padding:6px 8px;font-size:12.5px;font-family:ui-monospace,Menlo,monospace}
.colorrow .nm{flex:1;min-width:0}
.seclist{display:flex;flex-direction:column;gap:6px;max-height:220px;overflow:auto;padding-right:2px}
.notemodes{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}
.notemodes label{position:relative;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:4px;font-size:11.5px;color:var(--muted);text-align:center}
.notemodes .sw{width:100%;height:34px;border-radius:6px;border:1px solid var(--line)}
.notemodes input{position:absolute;opacity:0;pointer-events:none}
.notemodes label:has(input:checked) .sw{box-shadow:0 0 0 2px var(--raised),0 0 0 4px var(--accent)}
.preview-strip{height:40px;border-radius:8px;background:var(--pb);display:flex;align-items:center;gap:6px;padding:0 10px}
.preview-strip i{height:14px;flex:1;border-radius:3px;max-width:50px}

/* section color popover */
.col{position:relative}
.secdot{width:18px;height:18px;border-radius:50%;border:2px solid currentColor;background:conic-gradient(#FF8A80,#FFD66B,#9DD3B8,#A9C6FF,#D0B8F2,#FF8A80);padding:0;flex:none;opacity:.85}
.secdot:hover{opacity:1}
.secpop{position:absolute;top:46px;left:0;right:0;z-index:7;background:var(--raised);color:var(--ink);border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow);padding:12px;display:flex;flex-direction:column;gap:10px}
.secpop b{font-size:12.5px}
.swatches{display:grid;grid-template-columns:repeat(6,1fr);gap:7px}
.swatches button{aspect-ratio:1;border-radius:50%;border:1px solid rgba(0,0,0,.14);padding:0;max-width:100%}
.swatches button[aria-pressed="true"]{box-shadow:0 0 0 2px var(--raised),0 0 0 4px var(--accent)}
.secpop .lnk{border:0;background:none;color:var(--accent);font-size:12.5px;padding:0;text-align:left}

/* inline card editing */
.note.editing{cursor:auto;user-select:text;-webkit-user-select:text;box-shadow:0 0 0 2px var(--accent),0 6px 14px -8px rgba(0,0,0,.45)}
.note.editing input,.note.editing textarea{width:100%;border:1px solid var(--cl);background:var(--cs);color:var(--ci);border-radius:6px;padding:6px 8px;font-size:13.5px}
.note.editing input{font-weight:600}
.note.editing textarea{min-height:96px;resize:vertical}
.att{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--cm)}
.att img{width:44px;height:56px;object-fit:cover;border-radius:3px}
.att button{border:0;background:none;color:var(--cm);text-decoration:underline;padding:0;font-size:12px}
.edit-row{display:flex;gap:6px;justify-content:flex-end;align-items:center}
.edit-row .k{margin-right:auto;font-size:11px;color:var(--cm)}
.edit-row button{border:1px solid var(--cl);background:var(--cs);color:var(--ci);border-radius:6px;padding:5px 10px;font-size:12.5px}
.edit-row .save{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.mine{font-size:10.5px;font-weight:600;color:var(--cm);border:1px solid var(--cl);border-radius:4px;padding:0 5px;flex:none}
.edited{font-size:11px;color:var(--cm)}

/* backup */
.tree{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12px;background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:10px 12px;line-height:1.75;overflow-x:auto;white-space:pre;margin:0}
.tree .c{color:var(--muted)}
.tree .n{color:var(--ok);font-weight:600}
.log{display:flex;flex-direction:column;gap:5px;font-size:12.5px;margin:0;padding:0;list-style:none}
.log li{display:flex;gap:10px}
.log time{color:var(--muted);font-variant-numeric:tabular-nums;flex:none;width:96px}
.chip{display:inline-flex;gap:6px;align-items:center;font-size:12px;background:var(--raised);border:1px solid var(--line);border-radius:999px;padding:3px 10px;color:var(--muted)}
.chip i{width:6px;height:6px;border-radius:50%;background:var(--ok)}
.chip button{border:0;background:none;color:var(--accent);padding:0;font-size:12px}
.acct{display:flex;align-items:center;gap:10px;border:1px solid var(--line);border-radius:8px;padding:10px;font-size:13px}
.acct .av{width:30px;height:30px;border-radius:50%;background:var(--accent);color:var(--accent-ink);display:flex;align-items:center;justify-content:center;font-weight:600;flex:none}
.acct div{flex:1;min-width:0}
.acct small{display:block;color:var(--muted);font-size:11.5px}
.inline{display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-size:13px}
.inline select{border:1px solid var(--line);background:var(--surface);border-radius:8px;padding:6px 8px}

/* folders, trash */
.fedit{border:1px solid var(--accent);background:var(--raised);border-radius:8px;padding:7px 10px;font-size:13.5px;width:100%}
.fbtn.addf{color:var(--muted)}
.btn:disabled{opacity:.45;cursor:default}
.tsec h2{font-size:13px;margin:22px 0 8px;color:var(--muted);font-weight:600;letter-spacing:.02em}
.tlist{display:flex;flex-direction:column;gap:8px}
.trow{display:flex;align-items:center;gap:12px;padding:10px 12px;background:var(--raised);border:1px solid var(--line);border-radius:10px;flex-wrap:wrap}
.trow .tt{width:60px;height:42px;border-radius:6px;flex:none;background:var(--tb);background-size:cover;background-position:center;border:1px solid var(--line)}
.trow .tx{flex:1 1 200px;min-width:0}
.trow .tx b{display:block;font-size:13.5px;overflow-wrap:anywhere}
.trow .tx span{font-size:12px;color:var(--muted)}
.trow .ta{display:flex;gap:6px;flex-wrap:wrap;margin-left:auto}
.trow .ta .btn{padding:6px 10px}
.confirm{display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-size:13px}
.confirm span{color:var(--danger);font-weight:500}

/* board → folder drag */
.thumb[data-open]{cursor:pointer;touch-action:pan-y}
.bcard.dragging .thumb{opacity:.35}
.bghost{position:fixed;z-index:50;pointer-events:none;transform:rotate(-3deg);opacity:.94;box-shadow:0 18px 40px -12px rgba(0,0,0,.55);border-radius:10px;overflow:hidden}
.bghost .ttl{position:absolute;left:8px;right:8px;bottom:8px;background:var(--raised);color:var(--ink);font-size:12px;font-weight:600;border-radius:6px;padding:4px 8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
body.board-dragging #rail .fbtn[data-folder]:not([data-folder="all"]){outline:1px dashed var(--line);outline-offset:-1px}
#rail .fbtn.drop{background:var(--accent);color:var(--accent-ink);outline:none;box-shadow:0 0 0 2px var(--accent)}
#rail .fbtn.drop .n{color:inherit}

/* file drop + pdf preview */
.attach.over{border-color:var(--accent);border-style:solid;background:color-mix(in srgb,var(--accent) 8%,transparent);color:var(--ink)}
.attach img.pdfthumb{width:56px;height:74px;object-fit:cover;object-position:top;border:1px solid var(--line);background:#fff}
.attach small{display:block;font-size:11.5px;color:var(--muted)}
.col.filedrop .col-body,.pane.filedrop{background:color-mix(in srgb,var(--board-fg) 14%,transparent);outline:2px dashed color-mix(in srgb,var(--board-fg) 70%,transparent);outline-offset:3px}
.col.filedrop .col-body::before,.pane.filedrop::before{content:"여기에 놓으면 카드로 올라가요";display:block;text-align:center;font-size:12.5px;padding:10px 4px;color:var(--board-fg)}
.pdfprev{position:relative;border:1px solid var(--cl);border-radius:6px;overflow:hidden;background:#fff;cursor:zoom-in;line-height:0}
.pdfprev img{width:100%;height:auto;display:block;max-height:300px;object-fit:cover;object-position:top}
.pdfprev .pbadge{position:absolute;left:8px;top:8px;background:#C9322E;color:#fff;font-size:11px;font-weight:700;border-radius:4px;padding:2px 7px;line-height:1.5}
.fname{font-size:12px;color:var(--cm);overflow-wrap:anywhere;margin-top:-3px}
.pv-stage{flex:1;min-height:0;width:100%;display:flex;align-items:center;justify-content:center}
.pv-stage canvas,.pv-stage img{max-width:100%;max-height:100%;background:#fff;box-shadow:0 20px 60px -20px rgba(0,0,0,.8);border-radius:2px}
.pv-stage p{font-size:14px;opacity:.8}
#pdfv{padding-top:calc(70px + env(safe-area-inset-top,0px))}

/* service name */
.brand{cursor:text;gap:8px;align-items:center;flex-wrap:wrap}
.brand-in{font-family:var(--f-display);font-size:16px;border:1px solid var(--accent);border-radius:6px;padding:2px 8px;background:var(--raised);color:var(--ink);width:9em}
.brand-in.sub{font-family:var(--f-body);font-size:11px;width:12em;letter-spacing:.06em}

/* lightbox */
.lb{position:fixed;inset:0;z-index:40;background:rgba(8,10,16,.93);color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:calc(64px + env(safe-area-inset-top,0px)) max(64px,env(safe-area-inset-right,0px)) calc(20px + env(safe-area-inset-bottom,0px)) max(64px,env(safe-area-inset-left,0px))}
.lb img{max-width:100%;max-height:calc(100% - 56px);object-fit:contain;border-radius:4px;box-shadow:0 20px 60px -20px rgba(0,0,0,.8)}
.lb .cap{text-align:center;font-size:14px}
.lb .cap small{display:block;opacity:.7;font-size:12px;font-variant-numeric:tabular-nums}
.lbbtn{border:0;background:rgba(255,255,255,.14);color:#fff;border-radius:999px;width:44px;height:44px;font-size:22px;line-height:1;display:flex;align-items:center;justify-content:center}
.lbbtn:hover{background:rgba(255,255,255,.26)}
.lb .x{position:absolute;top:calc(14px + env(safe-area-inset-top,0px));right:calc(14px + env(safe-area-inset-right,0px))}
.lb .prev{position:absolute;left:calc(12px + env(safe-area-inset-left,0px));top:50%;transform:translateY(-50%)}
.lb .next{position:absolute;right:calc(12px + env(safe-area-inset-right,0px));top:50%;transform:translateY(-50%)}
@media (max-width:560px){.lb{padding-left:max(12px,env(safe-area-inset-left,0px));padding-right:max(12px,env(safe-area-inset-right,0px))}.lb .prev,.lb .next{top:auto;bottom:calc(16px + env(safe-area-inset-bottom,0px));transform:none}}

/* projector */
.proj{position:fixed;inset:0;z-index:30;background:var(--raised);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:24px;padding:24px max(16px,env(safe-area-inset-right,0px)) 24px max(16px,env(safe-area-inset-left,0px));text-align:center}
.proj h2{font-family:var(--f-display);font-size:clamp(26px,5vw,52px);margin:0;line-height:1.2;text-wrap:balance}
.proj p{margin:0;font-size:clamp(15px,2vw,22px);color:var(--muted)}
.proj .x{position:absolute;top:calc(16px + env(safe-area-inset-top,0px));right:calc(16px + env(safe-area-inset-right,0px))}

.toast{position:fixed;left:50%;bottom:calc(20px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:9px 16px;border-radius:999px;font-size:13px;z-index:60;box-shadow:var(--shadow);max-width:calc(100% - 32px);text-align:center}
@media (prefers-reduced-motion:no-preference){.note:not(.ghost){animation:pop .18s ease-out}@keyframes pop{from{transform:translateY(4px);opacity:.6}to{transform:none;opacity:1}}}
@media (max-width:720px){
  .home{grid-template-columns:1fr;gap:12px}
  .rail{position:static;flex-direction:row;flex-wrap:nowrap;overflow-x:auto;gap:6px}
  .rail .search{flex:none;width:160px;margin:0}
  .rail .lab{display:none}
  .fbtn{flex:none;border:1px solid var(--line)}
  .fbtn .n{margin-left:4px}
  .rail .fedit{flex:none;width:150px}
}
@media (max-width:560px){.bh-in{align-items:flex-start}.actions .btn .lbl{display:none}.presets{grid-template-columns:1fr 1fr}}

/* ---------- real app additions ---------- */
.loading{padding:48px 16px;text-align:center;color:var(--muted)}
.bar .spacer{margin-left:auto}
.bar-in .brand{margin-right:0}
.login{min-height:calc(100dvh - 40px);display:flex;align-items:center;justify-content:center;padding-block:40px}
.login form{width:100%;max-width:360px;background:var(--raised);border:1px solid var(--line);border-radius:14px;padding:28px 24px;display:flex;flex-direction:column;gap:14px;box-shadow:var(--shadow)}
.login h1{font-family:var(--f-display);font-size:24px;margin:0}
.login p{margin:0;color:var(--muted);font-size:13px}
.login input{border:1px solid var(--line);background:var(--surface);border-radius:8px;padding:11px 12px;font-size:15px;width:100%}
.login .err{color:var(--danger);font-size:13px;min-height:1.2em}
.login .btn{justify-content:center;padding:11px}
.btn[disabled]{opacity:.5;cursor:default}
.guest-full{padding:0;display:block}
.guest-full .phone{max-width:none;width:100%;height:100dvh;min-height:0;border:0;border-radius:0;box-shadow:none}
.guest-full .ph-top{padding-top:calc(16px + env(safe-area-inset-top,0px))}
.guest-full .fab{bottom:calc(16px + env(safe-area-inset-bottom,0px))}
.guest-wide .stage{min-height:100dvh}
.gname{border:0;background:color-mix(in srgb,var(--board-fg) 14%,transparent);color:inherit;border-radius:999px;padding:3px 10px;font-size:12px}
.me .gname{margin-left:4px}
.uploading{position:fixed;left:50%;top:calc(16px + env(safe-area-inset-top,0px));transform:translateX(-50%);z-index:60;background:var(--raised);color:var(--ink);border:1px solid var(--line);border-radius:999px;padding:8px 16px;font-size:13px;box-shadow:var(--shadow)}
.offline{position:fixed;left:50%;bottom:calc(64px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);z-index:55;background:var(--off);color:#fff;border-radius:999px;padding:6px 14px;font-size:12.5px}
.note .foot{flex-wrap:wrap;row-gap:0}
.tiny,.edited,.heart,.cbtn{white-space:nowrap}