:root{
  --blue:#1F459A; --blue-2:#5784D7; --cream:#F6F4EF;
  --ground:#F4F6FA; --surface:#ffffff; --sunk:#EDF1F7; --ink:#141B2B; --muted:#5B6576; --faint:#8B94A3;
  --line:#DCE2EC; --accent:#1F459A; --accent-ink:#ffffff; --accent-soft:#E3E9F5;
  --ok:#1d7a4c; --ok-soft:#e1f2e8; --bad:#b3261e; --bad-soft:#fbe7e5; --warn:#8a5a00; --warn-soft:#fbf0d6;
  --paper-shadow:0 1px 2px rgba(20,27,43,.06),0 8px 28px rgba(20,27,43,.08);
  --sans:'IBM Plex Sans KR','Apple SD Gothic Neo','Malgun Gothic',system-ui,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,'SFMono-Regular',Menlo,monospace;
  --r:12px;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){
  :root{
    color-scheme:dark;
    --ground:#0F141C; --surface:#161D28; --sunk:#121821; --ink:#E6EBF2; --muted:#9DA8B7; --faint:#6F7A89;
    --line:#263041; --accent:#6F95DE; --accent-ink:#0B1733; --accent-soft:#1A2A4D;
    --ok:#6fd3a0; --ok-soft:#15302a; --bad:#ff8f86; --bad-soft:#3a1c1b; --warn:#f0c46a; --warn-soft:#352a12;
    --paper-shadow:0 1px 2px rgba(0,0,0,.4),0 10px 30px rgba(0,0,0,.45);
  }
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--ground);color:var(--ink);font-family:var(--sans);font-size:15px;line-height:1.6}
a{color:var(--accent)}
img{max-width:100%}
[hidden]{display:none!important}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.container{max-width:1160px;margin:0 auto;padding-inline:16px}
h1,h2,h3{text-wrap:balance}

/* header */
.top{background:var(--surface);border-bottom:1px solid var(--line);position:relative;z-index:10}
.top .container{display:flex;align-items:center;gap:8px 20px;min-height:64px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:8px;font-weight:800;font-size:20px;letter-spacing:-.03em;color:var(--ink);text-decoration:none}
.brand .mark{flex:none;margin:-4px -2px -4px -6px;--lg-page:#1F459A;--lg-arrow:#3D63E8}
@media (prefers-color-scheme: dark){.brand .mark{--lg-page:#E6EBF2;--lg-arrow:#6F95DE}}
body[data-hero] .brand .mark{--lg-page:#F6F4EF;--lg-arrow:#7FA2FF}
.menu{display:flex;align-items:center;gap:2px}
.menu > a,.tools-menu summary{color:var(--ink);text-decoration:none;font-size:14px;font-weight:500;padding:7px 12px;border-radius:999px;cursor:pointer}
.menu > a:hover,.tools-menu summary:hover{background:var(--sunk)}
.tools-menu{position:relative}
.tools-menu summary{list-style:none;display:flex;align-items:center;gap:4px}
.tools-menu summary::-webkit-details-marker{display:none}
.tools-menu ul{position:absolute;left:0;top:calc(100% + 8px);z-index:30;list-style:none;margin:0;padding:8px;min-width:260px;background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:0 18px 40px rgba(0,0,0,.18);display:grid;gap:2px}
.tools-menu li a{display:flex;flex-direction:column;padding:8px 10px;border-radius:10px;color:var(--ink)!important;text-decoration:none;font-weight:600;font-size:14px}
.tools-menu li a small{font-weight:400;color:var(--muted);font-size:12.5px}
.tools-menu li a:hover{background:var(--sunk)}
.nav{display:flex;gap:4px;margin-left:auto;align-items:center}
.nav a{color:var(--ink);text-decoration:none;font-size:14px;font-weight:500;padding:6px 12px;border-radius:999px}
.nav a:hover{background:var(--sunk)}
.nav a.cta{background:var(--accent);color:var(--accent-ink);padding:7px 16px}
.nav .who{color:var(--muted)}
@media (max-width:820px){.menu > a{display:none}.menu{order:3;width:100%}.top .container{padding-block:6px}}
.menu a:focus-visible,.tools-menu summary:focus-visible,.nav a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
body[data-hero] .top{position:absolute;inset:0 0 auto;background:transparent;border-bottom:1px solid rgba(255,255,255,.08)}
body[data-hero] .brand,body[data-hero] .menu > a,body[data-hero] .tools-menu summary,body[data-hero] .nav a,body[data-hero] .lang summary{color:#fff}
body[data-hero] .menu > a:hover,body[data-hero] .tools-menu summary:hover,body[data-hero] .nav a:hover,body[data-hero] .lang summary:hover{background:rgba(255,255,255,.1)}
body[data-hero] .nav a.cta{background:#fff;color:#0A0F1E}
body[data-hero] .nav .who{color:rgba(255,255,255,.7)}

/* hero: dark stage with blue light, like a spotlight */
.hero{position:relative;overflow:hidden;min-height:100vh;min-height:100svh;display:flex;flex-direction:column;justify-content:center;background:#03050B;color:#fff;padding-block:110px 90px;isolation:isolate}
.hero-bg{position:absolute;inset:0;z-index:-1;background:
  radial-gradient(42% 60% at 24% 42%, #3A66FF 0%, #2550D8 28%, rgba(31,69,154,.55) 55%, transparent 75%),
  radial-gradient(38% 55% at 78% 34%, #2A56E0 0%, rgba(31,69,154,.75) 40%, transparent 72%),
  radial-gradient(70% 45% at 50% 105%, #02040A 30%, transparent 75%),
  #02040A}
.hero-bg::before{content:"";position:absolute;inset:0;background:var(--photo) center/cover no-repeat;opacity:.9;mix-blend-mode:normal}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(3,5,11,.35),rgba(3,5,11,.1) 40%,rgba(3,5,11,.75))}
@media (prefers-reduced-motion:no-preference){.hero-bg{animation:drift 18s ease-in-out infinite alternate;background-size:120% 120%}}
@keyframes drift{from{background-position:0% 0%}to{background-position:100% 60%}}
.hero-in{position:relative;max-width:760px;display:flex;flex-direction:column;align-items:center;text-align:center;gap:16px}
.pills{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;max-width:820px;margin-bottom:6px}
.pills a{font-size:13px;font-weight:600;line-height:1;padding:9px 14px;border-radius:999px;text-decoration:none;color:#fff;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.pills a:hover{background:rgba(255,255,255,.16)}
.pills a[aria-current="page"]{background:#fff;color:#0A0F1E;border-color:#fff}
.pills a:focus-visible{outline:2px solid #fff;outline-offset:2px}
.hero h1{margin:0;font-size:clamp(34px,6vw,64px);font-weight:700;letter-spacing:-.035em;line-height:1.08}
.route{display:flex;align-items:stretch;justify-content:center;gap:12px;margin:6px 0 2px;width:min(100%,600px)}
.rcard{position:relative;flex:1 1 0;min-width:0;display:flex;flex-direction:column;gap:10px;text-align:left;padding:14px 16px 13px;border-radius:6px;background:rgba(16,20,30,.78);border:1px solid rgba(255,255,255,.12);box-shadow:0 10px 30px rgba(0,0,0,.25);cursor:pointer;transition:border-color .15s,background .15s,box-shadow .15s;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.rcard.on{border-color:#6F95DE;box-shadow:0 0 0 1px rgba(111,149,222,.35),0 10px 30px rgba(0,0,0,.3)}
.rcard:hover{background:rgba(24,30,44,.86)}
.rcard:focus-within{border-color:#9CB8F0;box-shadow:0 0 0 3px rgba(111,149,222,.35)}
.rc-top{display:flex;justify-content:space-between;align-items:baseline;gap:8px;font-size:12.5px}
.rc-k{color:#fff;font-weight:700;letter-spacing:-.01em}
.rc-h{color:rgba(255,255,255,.45);font-size:11.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rc-line{display:block;height:3px;border-radius:3px;background:rgba(255,255,255,.1);overflow:hidden}
.rcard.on .rc-line{background:linear-gradient(90deg,#3D63E8,#6F95DE)}
.rc-bot{display:flex;justify-content:space-between;align-items:center;gap:10px}
.rc-v{color:#fff;font-size:20px;font-weight:800;letter-spacing:-.02em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rcard.on .rc-v{color:#A9C2F5}
/* the value that just changed: one big neon-blue punch with an afterimage, then back to normal */
.rc-v{transform-origin:left center;position:relative;z-index:1}
.rc-v.shine{overflow:visible;animation:rcPunch .9s cubic-bezier(.16,.9,.3,1) both}
@keyframes rcPunch{
  0%{transform:scale(.85);color:#33D1FF;text-shadow:0 0 0 rgba(51,209,255,0)}
  16%{transform:scale(1.85);color:#3FE0FF;text-shadow:0 0 22px rgba(63,224,255,.95),0 0 44px rgba(40,140,255,.7),-16px 0 0 rgba(63,224,255,.5),-32px 0 0 rgba(63,224,255,.25),-48px 0 0 rgba(63,224,255,.1)}
  40%{transform:scale(1.18);color:#3FE0FF;text-shadow:0 0 14px rgba(63,224,255,.7),-8px 0 0 rgba(63,224,255,.35),-16px 0 0 rgba(63,224,255,.15),-24px 0 0 rgba(63,224,255,0)}
  100%{transform:scale(1);text-shadow:0 0 0 rgba(63,224,255,0)}
}
@media (prefers-reduced-motion:reduce){.rc-v.shine{animation:none}}
.rc-btn{flex:none;display:inline-flex;align-items:center;gap:4px;font-size:12px;font-weight:600;color:rgba(255,255,255,.8);background:rgba(255,255,255,.09);border-radius:999px;padding:6px 10px 6px 12px}
.rcard select{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer;font-size:16px;appearance:none;-webkit-appearance:none;border:0}
.rcard select option{color:#0A0F1E;background:#fff}
.route .to-ar{align-self:center;color:#7FA2FF;flex:none}
.route.flash .rcard{animation:rflash .55s ease}
@keyframes rflash{0%{border-color:#9CB8F0;box-shadow:0 0 0 4px rgba(127,162,255,.3)}100%{}}
@media (max-width:560px){.route{gap:6px}.rcard{padding:11px 11px 10px;gap:8px}.rc-v{font-size:17px}.rc-h{display:none}.rc-btn{padding:5px 7px;font-size:0;gap:0}.rc-btn svg{width:12px;height:12px}.route .to-ar{width:18px}}
.hero .lede{margin:0;max-width:560px;color:rgba(255,255,255,.72);font-size:15px}
.hero .fmt{font-family:inherit;font-size:inherit;font-weight:600;color:#fff;background:none;padding:0}
.fmt{font-family:var(--mono);font-size:12.5px;font-weight:500}
/* upload bar: a rounded pill like a search bar */
.drop{position:relative;margin-top:10px;width:min(100%,640px);display:flex;align-items:center;gap:12px;text-align:left;padding:8px 8px 8px 20px;border-radius:999px;background:rgba(18,20,28,.86);border:1px solid rgba(255,255,255,.12);color:#fff;box-shadow:0 18px 50px rgba(0,0,0,.45);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);cursor:pointer;transition:border-color .15s,transform .15s}
.drop:hover,.drop.over{border-color:rgba(120,150,255,.7);transform:translateY(-1px)}
.drop.over{box-shadow:0 0 0 4px rgba(61,99,232,.35),0 18px 50px rgba(0,0,0,.45)}
.drop:focus-within{outline:2px solid #fff;outline-offset:3px}
.drop input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;border-radius:999px}
.drop-ic{flex:none;color:rgba(255,255,255,.7)}
.drop-t{display:flex;flex-direction:column;gap:1px;flex:1;min-width:0}
.drop-t strong{font-size:14.5px;font-weight:500;color:rgba(255,255,255,.92);overflow-wrap:anywhere}
.drop-t span{font-size:12px;color:rgba(255,255,255,.5)}
.drop-btn{flex:none;background:#3D63E8;color:#fff;font-weight:600;font-size:14px;padding:12px 20px;border-radius:999px}
.drop:hover .drop-btn{background:#4A70F0}
@media (max-width:520px){.drop{border-radius:22px;flex-wrap:wrap;padding:14px}.drop-btn{width:100%;text-align:center}}
.hero-meta{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:6px 16px;font-size:13px;color:rgba(255,255,255,.8)}
.hero .quota b{font-variant-numeric:tabular-nums;color:#fff}
.hero .quota a{color:#fff;font-weight:600;margin-left:6px}
.hero .linkish{color:#fff}
.private{display:flex;gap:6px;align-items:center;justify-content:center;margin:0;font-size:12.5px;color:rgba(255,255,255,.55)}
.cue{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:2px;color:rgba(255,255,255,.6);font-size:12px;text-decoration:none}
.cue:hover{color:#fff}
@media (prefers-reduced-motion:no-preference){.cue svg{animation:bob 1.6s ease-in-out infinite}}
@keyframes bob{50%{transform:translateY(4px)}}

/* slogan typed letter by letter with an afterimage */
.ghost{margin:0;font-size:clamp(22px,2.2vw,32px);font-weight:700;letter-spacing:-.02em;line-height:1.25;color:#fff;pointer-events:none;white-space:nowrap}
/* placed at a random free spot of the hero by hero.js, then drift gently */
.ghost-l,.ghost-r{position:absolute;left:0;top:0;z-index:1;visibility:hidden}
.ghost-l.placed,.ghost-r.placed{visibility:visible}
.ghost-m{display:none}
/* after typing: the phrase drifts slowly and every letter sways in a wave, like swimming */
.ghost.float{animation:ghostSwim var(--fd,10s) cubic-bezier(.45,0,.55,1) infinite;will-change:transform}
/* slow, wandering "swim": a loose loop with a little sway */
@keyframes ghostSwim{
  0%{transform:translate(0,0) rotate(0deg)}
  20%{transform:translate(calc(var(--fx) * .9),calc(var(--fy) * -.6)) rotate(1.2deg)}
  40%{transform:translate(calc(var(--fx) * 1.4),calc(var(--fy) * .5)) rotate(-.8deg)}
  60%{transform:translate(calc(var(--fx) * .5),calc(var(--fy) * 1.2)) rotate(1deg)}
  80%{transform:translate(calc(var(--fx) * -.6),calc(var(--fy) * .4)) rotate(-1.1deg)}
  100%{transform:translate(0,0) rotate(0deg)}
}
@media (max-width:700px){.ghost{font-size:18px}}
.ghost span{display:inline-block;opacity:0}
.ghost.typing span{animation:ghostIn .8s cubic-bezier(.2,.9,.25,1) forwards;animation-delay:calc(var(--c) * 110ms)}
.ghost.out span{animation:ghostOut .9s ease-in forwards;animation-delay:calc(var(--c) * 60ms)}
.ghost.still{opacity:1}
@keyframes ghostIn{
  0%{opacity:0;transform:translateX(-14px);filter:blur(4px);text-shadow:-10px 0 0 rgba(120,150,255,.55),-20px 0 0 rgba(120,150,255,.25)}
  55%{opacity:1;filter:blur(0);text-shadow:-4px 0 0 rgba(120,150,255,.45),-9px 0 0 rgba(120,150,255,.18)}
  100%{opacity:1;transform:none;text-shadow:0 0 0 transparent}
}
@keyframes ghostOut{to{opacity:0;transform:translateX(10px);filter:blur(3px);text-shadow:8px 0 0 rgba(120,150,255,.35)}}

/* screen-by-screen scrolling on the home page */

/* workspace (appears after a file is added) */
.work{background:var(--ground);border-bottom:1px solid var(--line)}
.tool{display:grid;grid-template-columns:minmax(0,340px) minmax(0,1fr);gap:24px;align-items:start;padding-block:28px}
@media (max-width:880px){.tool{grid-template-columns:minmax(0,1fr)}}
.side{display:flex;flex-direction:column;gap:14px;position:sticky;top:16px}
@media (max-width:880px){.side{position:static}}
.side-head{display:flex;align-items:center;justify-content:space-between;gap:8px}
.side-head .label{margin:0}
.label{font-size:11.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--faint);margin:0 0 8px}
.files{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.file{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:12px 12px 12px 14px;display:grid;gap:10px;cursor:pointer}
.file[aria-current="true"]{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
.frow{display:flex;gap:10px;align-items:baseline;min-width:0}
.fname{font-weight:600;overflow-wrap:anywhere;flex:1;min-width:0}
.meta{display:flex;flex-wrap:wrap;gap:6px 10px;align-items:center;color:var(--muted);font-size:12.5px}
.chip{display:inline-flex;align-items:center;padding:1px 8px;border-radius:999px;font-size:11.5px;font-weight:600;line-height:1.6}
.chip.ok{background:var(--ok-soft);color:var(--ok)}
.chip.bad{background:var(--bad-soft);color:var(--bad)}
.chip.busy{background:var(--sunk);color:var(--muted)}
.chip.ex{background:var(--accent-soft);color:var(--accent)}
.err{color:var(--bad);font-size:13px;margin:0}
.actions{display:flex;gap:6px;flex-wrap:wrap}
.view-note{margin:8px 0 0;font-size:12.5px;color:var(--muted);line-height:1.5}
button{font:inherit;cursor:pointer}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border-radius:999px;padding:7px 14px;font-weight:600;font-size:13px;border:1px solid var(--line);background:var(--surface);color:var(--ink);text-decoration:none}
.btn:hover{border-color:var(--accent);color:var(--accent)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn.primary:hover{filter:brightness(1.1);color:var(--accent-ink)}
.btn.block{width:100%}
.btn.small{padding:4px 11px;font-size:12.5px}
.btn:focus-visible,.nav a:focus-visible,.pill:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn[disabled],.pill[disabled]{opacity:.55;cursor:default}
.x{margin-left:auto;border:0;background:none;color:var(--faint);padding:2px 4px;border-radius:6px;font-size:16px;line-height:1}
.x:hover{color:var(--bad)}
.facts{display:grid;grid-template-columns:auto 1fr;gap:5px 14px;margin:0;font-size:13px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:12px 14px}
.facts dt{color:var(--muted)}
.facts dd{margin:0;overflow-wrap:anywhere}
.warns{margin:0;padding:10px 12px;border-radius:10px;background:var(--warn-soft);color:var(--warn);font-size:12.5px}
.stage{min-width:0}
.bar{display:flex;align-items:center;gap:10px;margin-bottom:12px;min-height:30px;flex-wrap:wrap}
.bar .t{font-weight:600;overflow-wrap:anywhere}
.bar .sheet{color:var(--muted);font-size:12.5px}
.desk{background:var(--sunk);border:1px solid var(--line);border-radius:var(--r);padding:24px 16px;overflow-x:auto}
@media (max-width:600px){.desk{padding:12px 8px}}
.paper{background:#fff;color:#000;margin:0 auto;box-shadow:var(--paper-shadow);border-radius:2px;min-height:360px;color-scheme:light}
.empty{display:grid;place-items:center;text-align:center;color:#5B6576;min-height:360px;padding:24px}
.ad-slot:not(:empty){margin-top:8px}
.paper.pages{background:none;box-shadow:none;min-height:0;display:flex;flex-direction:column;gap:16px;align-items:center}
.paper.pages .empty{background:#fff;width:100%;box-shadow:var(--paper-shadow)}
.sheet-img{display:block;width:100%;max-width:100%;height:auto;background:#fff;box-shadow:var(--paper-shadow)}
.docx-host{align-items:stretch}
.docx-host section.docx{box-shadow:var(--paper-shadow);margin:0 auto 16px!important;background:#fff}

/* plans (free vs paid) */
.plansec{background:var(--ground);padding-block:72px 56px}
html.snap .plansec{min-height:100vh;min-height:100svh;display:flex;align-items:center}
html.snap .plansec > .container{width:100%}
html.js-motion.snap .plansec .plans-title,html.js-motion.snap .plansec .pcard{opacity:0;transform:translateY(48px)}
html.js-motion.snap .plansec.in .plans-title,html.js-motion.snap .plansec.in .pcard{animation:slideUp .6s cubic-bezier(.2,1.2,.35,1) forwards}
html.js-motion.snap .plansec.in .pcard:nth-child(1){animation-delay:.12s}
html.js-motion.snap .plansec.in .pcard:nth-child(2){animation-delay:.22s}
@keyframes slideUp{to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){html.js-motion.snap .plansec .plans-title,html.js-motion.snap .plansec .pcard{opacity:1;transform:none;animation:none}}
.plans-title{margin:0 0 32px;text-align:center;font-size:clamp(22px,3.2vw,28px);font-weight:700;letter-spacing:-.02em;line-height:1.35}
.plans-title span{display:block;color:var(--muted);font-weight:600}
.plancards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;max-width:920px;margin:0 auto;align-items:start}
@media (max-width:760px){.plancards{grid-template-columns:minmax(0,1fr)}}
.pcard{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:24px;display:flex;flex-direction:column;gap:14px}
.pcard.paid{border:1.5px solid var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}
.pname{display:flex;align-items:center;gap:8px;font-weight:600}
.pname svg{color:var(--accent)}
.paid .pname{color:var(--accent)}
.pprice{margin:0;font-size:15px;color:var(--muted)}
.paid .pprice{color:var(--accent);font-weight:600}
.pill{display:flex;align-items:center;justify-content:center;height:44px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--ink);font-weight:600;font-size:14.5px;text-decoration:none}
.pill:hover{border-color:var(--accent);color:var(--accent)}
.pill.solid{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.pill.solid:hover{filter:brightness(1.1);color:var(--accent-ink)}
.plead{margin:4px 0 0;font-size:14px;color:var(--muted)}
.checks{list-style:none;margin:0;padding:0;display:grid;gap:10px;font-size:14.5px}
.checks li{display:flex;gap:10px;align-items:flex-start}
.ck{flex:none;margin-top:3px;color:var(--ink)}
.paid .ck{color:var(--accent)}
.opts{border:0;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:8px}
.opt{position:relative;cursor:pointer}
.opt input{position:absolute;opacity:0;inset:0;cursor:pointer}
.opt-in{display:flex;flex-direction:column;gap:2px;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:var(--ground);font-size:13px;color:var(--muted)}
.opt-in b{color:var(--ink);font-size:14px}
.opt-price{color:var(--ink);font-weight:600;font-variant-numeric:tabular-nums}
.opt-price small{color:var(--muted);font-weight:500}
.opt input:checked + .opt-in{border-color:var(--accent);background:var(--accent-soft);box-shadow:0 0 0 1px var(--accent)}
.opt input:focus-visible + .opt-in{outline:2px solid var(--accent);outline-offset:2px}
.fair{margin:-6px 0 0;font-size:12px;color:var(--faint)}
.intl{max-width:920px;margin:16px auto 0;padding:10px 14px;border-radius:10px;background:var(--warn-soft);color:var(--warn);font-size:13px}

/* article under the tool */
.article{max-width:760px;padding-block:48px 8px}
.article h2{font-size:20px;margin:36px 0 10px;letter-spacing:-.01em}
.article h2:first-child{margin-top:0}
.article h2[id]{scroll-margin-top:24px}
.article ol,.article ul{padding-left:22px}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:12px 14px;margin-bottom:8px}
.faq summary{cursor:pointer;font-weight:600}
.faq details p{margin:8px 0 0;color:var(--muted)}
.others{display:flex;flex-wrap:wrap;gap:8px}
.others a{padding:6px 12px;border-radius:999px;background:var(--surface);border:1px solid var(--line);text-decoration:none;font-size:13.5px;color:var(--ink)}
.others a:hover{border-color:var(--accent);color:var(--accent)}

/* footer */
.foot{margin-top:48px;border-top:1px solid var(--line);background:var(--surface);color:var(--muted);font-size:12.5px}
.foot .container{padding-block:24px 32px;display:grid;gap:8px}
.foot nav{display:flex;gap:14px;flex-wrap:wrap}
.foot nav a{color:var(--ink);text-decoration:none;font-weight:500}
.foot p{margin:0}

/* simple pages */
.page{max-width:760px;padding-block:36px 0}
.page h1{margin:0 0 16px;font-size:28px;letter-spacing:-.02em}
.page h2{font-size:18px;margin:28px 0 8px}
.page p,.page li{font-size:14.5px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px}
.notice{padding:12px 14px;border-radius:10px;font-size:14px;margin:16px auto 0}
.notice.bad{background:var(--bad-soft);color:var(--bad)}
.notice.ok{background:var(--ok-soft);color:var(--ok)}

/* login */
.auth{max-width:420px;margin:36px auto 0;display:grid;gap:16px}
.social{display:grid;gap:8px}
.social a{display:flex;align-items:center;justify-content:center;gap:10px;height:46px;border-radius:999px;font-weight:600;text-decoration:none;font-size:15px;border:1px solid transparent}
.s-kakao{background:#FEE500;color:#191600}
.s-naver{background:#03C75A;color:#fff}
.s-google{background:#fff;color:#1f1f1f;border-color:#dadce0!important}
.s-line{background:#06C755;color:#fff}
.or{display:flex;align-items:center;gap:10px;color:var(--faint);font-size:12.5px}
.or::before,.or::after{content:"";flex:1;height:1px;background:var(--line)}
.tabs{display:flex;gap:4px;background:var(--sunk);padding:4px;border-radius:999px}
.tabs button{flex:1;border:0;background:none;padding:8px;border-radius:999px;font-weight:600;color:var(--muted)}
.tabs button[aria-selected="true"]{background:var(--surface);color:var(--ink);box-shadow:0 1px 2px rgba(0,0,0,.08)}
form.stack{display:grid;gap:10px}
label.f{display:grid;gap:4px;font-size:13px;font-weight:500}
input.i{font:inherit;padding:10px 12px;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--ink)}
input.i:focus{outline:2px solid var(--accent);outline-offset:0;border-color:var(--accent)}
.msg{font-size:13.5px;margin:0}
.msg.bad{color:var(--bad)} .msg.ok{color:var(--ok)}
.linkish{border:0;background:none;color:var(--accent);padding:0;font-size:13px;text-decoration:underline;text-underline-offset:3px}

/* dialogs, toast, progress */
dialog{border:0;border-radius:16px;padding:0;max-width:min(420px,calc(100% - 32px));background:var(--surface);color:var(--ink);box-shadow:0 20px 60px rgba(0,0,0,.3)}
dialog::backdrop{background:rgba(10,14,20,.45)}
dialog .in{padding:22px;display:grid;gap:12px}
dialog h2{margin:0;font-size:18px}
dialog p{margin:0;color:var(--muted);font-size:14px}
.toast{position:fixed;left:50%;bottom:20px;transform:translateX(-50%);background:var(--ink);color:var(--surface);padding:10px 16px;border-radius:999px;font-size:13.5px;max-width:calc(100% - 32px);z-index:10}
.meter{height:8px;border-radius:999px;background:var(--sunk);overflow:hidden}
.meter span{display:block;height:100%;width:0;background:var(--accent);transition:width .2s}

/* language */
.lang{position:relative}
.lang summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:6px;font-size:14px;font-weight:500;padding:6px 12px;border-radius:999px;color:var(--ink)}
.lang summary::-webkit-details-marker{display:none}
.lang summary:hover{background:var(--sunk)}
.lang summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.lang ul{position:absolute;right:0;top:calc(100% + 6px);z-index:20;list-style:none;margin:0;padding:6px;min-width:140px;background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:0 10px 30px rgba(0,0,0,.14)}
.lang li a{display:block;padding:7px 10px;border-radius:8px;color:var(--ink)!important;text-decoration:none;font-size:14px}
.lang li a:hover{background:var(--sunk)}
.lang li a[aria-current="true"]{font-weight:700;color:var(--accent)!important}
.langbar{position:fixed;left:50%;bottom:16px;transform:translateX(-50%);z-index:40;display:flex;align-items:center;gap:10px;padding:8px 8px 8px 16px;background:var(--surface);border:1px solid var(--line);border-radius:999px;box-shadow:0 10px 30px rgba(0,0,0,.2);font-size:14px;max-width:calc(100% - 32px)}
.langbar a{font-weight:600}
.langbar button{border:0;background:none;color:var(--muted);font-size:18px;line-height:1;padding:2px 6px}
@media (prefers-reduced-motion:no-preference){.btn,.file,.pill,.opt-in{transition:border-color .15s,color .15s,background .15s}}