/* 팀채널. 종이 문서(공람·확인란 도장)가 주인공 — 색은 칠판 초록(조작)과 인주 붉은색(도장·마감)만 쓴다. */
:root {
  color-scheme: light dark;
  --bg: #f1f3f6; --surface: #fff; --rail: #e7ebf0; --ink: #17223a; --mut: #5b687d; --line: #d5dbe4; --line2: #a9b3c2;
  --pri: #0e6b5c; --pri-ink: #fff; --pri-soft: #dcefe9; --seal: #cf3527; --seal-soft: #fbe6e3;
  --c-notice: #2a5a9e; --c-survey: #6f47ad; --c-task: #9a5a06;
  --r: 10px; --font: "IBM Plex Sans KR", -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f141b; --surface: #171e28; --rail: #131922; --ink: #e7ebf1; --mut: #97a3b5; --line: #2a3442; --line2: #4a5669;
    --pri: #52c2aa; --pri-ink: #05241d; --pri-soft: #17352f; --seal: #f26d5f; --seal-soft: #3a1d1a;
    --c-notice: #7fb0f0; --c-survey: #b79af0; --c-task: #e0a94f;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.6 var(--font); overflow-wrap: anywhere; }
h1, h2, h3, p, ul, fieldset, blockquote { margin: 0; }
h1 { font-size: 21px; line-height: 1.35; font-weight: 700; letter-spacing: -.01em; }
h2 { font-size: 17px; font-weight: 700; }
h3 { font-size: 15px; font-weight: 700; margin-top: 18px; }
ul { padding: 0; list-style: none; }
fieldset { border: 0; padding: 0; min-width: 0; }
legend, label, .label { font-weight: 500; font-size: 14px; padding: 0; }
a { color: var(--pri); text-underline-offset: 3px; }
code { font: inherit; }
[hidden] { display: none !important; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
.mut { color: var(--mut); font-size: 13px; }
.ell { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; }
:focus-visible { outline: 2px solid var(--pri); outline-offset: 2px; }

/* 입력·버튼 */
input:not([type=checkbox]):not([type=radio]), textarea, select {
  width: 100%; padding: 10px 12px; border: 1px solid var(--line2); border-radius: 8px; background: var(--surface); color: var(--ink); font: inherit; min-height: 44px;
}
textarea { resize: vertical; line-height: 1.5; }
input[type=checkbox], input[type=radio] { width: 20px; height: 20px; accent-color: var(--pri); flex: none; margin: 0; }
button, .btn { font: inherit; font-weight: 500; cursor: pointer; border-radius: 8px; border: 1px solid transparent; padding: 9px 16px; min-height: 44px; background: none; color: var(--ink); text-decoration: none; display: inline-flex; align-items: center; justify-content: center; gap: 8px; }
button, .btn { white-space: nowrap; flex: none; }
button:disabled { opacity: .5; cursor: default; }
.primary { background: var(--pri); color: var(--pri-ink); font-weight: 700; }
.ghost, .outline { border-color: var(--line2); background: var(--surface); }
.outline.soft { border-color: var(--line); color: var(--mut); background: none; }
.link { padding: 4px 6px; min-height: 32px; color: var(--pri); border: 0; text-decoration: underline; text-underline-offset: 3px; }
.danger { color: var(--seal); }
.stack { display: flex; flex-direction: column; gap: 8px; }
.stack > label, .stack > .label, .stack > fieldset { margin-top: 8px; }
.inline { display: flex; gap: 8px; flex-wrap: wrap; }
.inline > input { flex: 1 1 200px; }
.bar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.two { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.check { display: flex; gap: 10px; align-items: center; font-weight: 400; font-size: 15px; min-height: 36px; }
.box { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); padding: 18px; }
.tag { font-size: 12px; color: var(--mut); border: 1px solid var(--line); border-radius: 999px; padding: 1px 9px; white-space: nowrap; flex: none; }
.tag.role-owner, .tag.role-staff { color: var(--pri); border-color: var(--pri); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--seal); flex: none; }
.empty { color: var(--mut); padding: 28px 8px; text-align: center; }
#toast { position: fixed; left: 50%; bottom: calc(24px + env(safe-area-inset-bottom)); transform: translate(-50%, 20px); background: var(--ink); color: var(--bg); padding: 10px 18px; border-radius: 999px; font-size: 14px; opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; max-width: calc(100vw - 32px); z-index: 20; }
#toast.on { opacity: 1; transform: translate(-50%, 0); }

/* 틀: 넓으면 채널 목록 + 본문, 좁으면 한 화면씩 */
.app { display: grid; grid-template-columns: 250px minmax(0, 1fr); height: 100dvh; }
.rail { background: var(--rail); border-right: 1px solid var(--line); padding: 16px 10px calc(12px + env(safe-area-inset-bottom)); display: flex; flex-direction: column; gap: 4px; min-height: 0; }
.brand { font-weight: 700; font-size: 18px; color: var(--pri); text-decoration: none; padding: 4px 10px 12px; letter-spacing: -.02em; }
.rail-list { flex: 1; overflow: auto; display: flex; flex-direction: column; gap: 2px; }
.rail-item { display: flex; align-items: center; gap: 8px; padding: 9px 10px; border-radius: 8px; color: var(--ink); text-decoration: none; }
.rail-item.on { background: var(--surface); font-weight: 700; box-shadow: inset 3px 0 0 var(--pri); }
.rail-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.rail-new { padding: 9px 10px; font-size: 14px; }
.rail-foot { border-top: 1px solid var(--line); padding: 8px 6px 0; display: flex; align-items: center; justify-content: space-between; gap: 6px; }
.main { min-width: 0; display: flex; flex-direction: column; overflow: auto; }
.page { width: 100%; max-width: 720px; margin: 0 auto; padding: 20px 16px 48px; display: flex; flex-direction: column; gap: 14px; }
.pane { flex: 1; min-height: 0; }
.only-narrow { display: none; }
.solo { max-width: 440px; margin: 0 auto; padding: 40px 16px; display: flex; flex-direction: column; gap: 14px; }
.solo.wide { max-width: 760px; padding-top: 20px; }
.solo.wide .page { padding: 0; }
.foot { display: flex; gap: 14px; flex-wrap: wrap; font-size: 13px; color: var(--mut); padding: 20px 0 0; }
.foot a { color: var(--mut); }

.chead { position: sticky; top: 0; z-index: 5; background: var(--bg); border-bottom: 1px solid var(--line); padding: calc(12px + env(safe-area-inset-top)) 16px 0; }
.chead-top { display: flex; align-items: center; gap: 8px; min-height: 44px; }
.back { display: none; font-size: 28px; line-height: 1; text-decoration: none; padding: 4px 10px 8px 0; color: var(--ink); }
.tabs { display: flex; gap: 4px; margin-top: 6px; }
.tabs a { padding: 9px 14px; color: var(--mut); text-decoration: none; border-bottom: 3px solid transparent; font-weight: 500; position: relative; }
.tabs a.on { color: var(--ink); border-color: var(--pri); font-weight: 700; }
.tabs a.has-new::after { content: ""; position: absolute; top: 8px; right: 4px; width: 7px; height: 7px; border-radius: 50%; background: var(--seal); }

/* 목록 */
.rows, .docs { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.rows > li + li, .docs > li + li { border-top: 1px solid var(--line); }
.row, .doc-row { display: flex; align-items: center; gap: 10px; padding: 12px 14px; color: var(--ink); text-decoration: none; flex-wrap: wrap; }
.row-main { flex: 1 1 180px; min-width: 0; display: flex; flex-direction: column; }
.pane-docs { max-width: 720px; width: 100%; margin: 0 auto; padding: 16px 16px 48px; display: flex; flex-direction: column; gap: 12px; }
.doc-row { align-items: flex-start; flex-wrap: nowrap; }
.doc-row.unread strong::before { content: ""; display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--seal); margin-right: 6px; vertical-align: middle; }
.doc-type { font-size: 13px; font-weight: 700; color: var(--tc, var(--pri)); white-space: nowrap; flex: none; min-width: 84px; padding-top: 2px; }
.doc-type::before { content: ""; display: inline-block; width: 8px; height: 8px; background: currentColor; margin-right: 6px; border-radius: 2px; }
.t-notice { --tc: var(--c-notice); } .t-circular { --tc: var(--seal); } .t-survey { --tc: var(--c-survey); } .t-task { --tc: var(--c-task); }
.state { font-size: 13px; font-weight: 700; color: var(--seal); white-space: nowrap; flex: none; }
.state.ok { color: var(--pri); }
.meters { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 4px; }
.meter { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: var(--mut); }
.meter-bar { width: 56px; height: 6px; background: var(--line); border-radius: 3px; overflow: hidden; flex: none; }
.meter-bar i { display: block; height: 100%; background: var(--pri); }
.meter.wide { display: grid; grid-template-columns: minmax(90px, 1fr) minmax(80px, 2fr) 56px; font-size: 14px; color: var(--ink); gap: 10px; padding: 3px 0; }
.meter.wide .meter-bar { width: 100%; height: 8px; }
.meter.wide strong { text-align: right; font-variant-numeric: tabular-nums; }
.tpl-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; }
.tpl { display: flex; flex-direction: column; gap: 4px; padding: 14px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); color: var(--ink); text-decoration: none; }
.tpl:hover { border-color: var(--pri); }
.qrow { display: grid; grid-template-columns: 1fr 150px; gap: 8px; padding: 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); }
.qrow .q-opts { grid-column: 1 / -1; }
.qrow .link { justify-self: start; }
.picks { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 0 12px; padding: 8px 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); max-height: 240px; overflow: auto; }
.uploader { display: flex; flex-direction: column; gap: 8px; align-items: flex-start; }
.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip { display: inline-flex; align-items: center; gap: 2px; font-size: 13px; background: var(--pri-soft); border-radius: 999px; padding: 2px 4px 2px 12px; }
.chip button { min-height: 28px; padding: 0 8px; }
.linkline { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.linkline code { flex: 1 1 220px; padding: 9px 12px; background: var(--bg); border-radius: 8px; font-size: 13px; }

/* 문서 */
.doc { background: var(--surface); border: 1px solid var(--line); border-top: 4px double var(--ink); border-radius: 2px 2px var(--r) var(--r); padding: 20px 22px 22px; display: flex; flex-direction: column; gap: 8px; }
.doc-top { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.doc h1 { font-size: 24px; }
.text { white-space: pre-wrap; }
.doc .body { font-size: 16px; line-height: 1.75; max-width: 68ch; margin-top: 8px; }
.due { font-weight: 700; color: var(--c-task); font-size: 14px; }
.due.over { color: var(--seal); }
.mention { color: var(--pri); font-weight: 700; }
.mention.me { background: var(--pri-soft); border-radius: 4px; padding: 0 3px; }
.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 8px; margin-top: 8px; }
.gallery img, .gallery video { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 8px; background: var(--line); display: block; }
.gallery video { object-fit: contain; background: #000; }
.filechip { padding: 10px 12px; border: 1px solid var(--line2); border-radius: 8px; font-size: 13px; text-decoration: none; color: var(--ink); align-self: start; }
.notice-bar { background: var(--pri-soft); border-radius: 8px; padding: 8px 12px; font-size: 14px; }
.checklist li + li { border-top: 1px solid var(--line); }
.checklist .check { padding: 6px 0; min-height: 44px; }
.respond { display: flex; flex-direction: column; gap: 10px; }
.sealed { display: flex; align-items: center; gap: 12px; font-weight: 700; }
.result { margin-top: 10px; }
.result ul, .progress > ul { padding-left: 18px; list-style: disc; }

/* 확인란 도장 — 결재란처럼 칸을 긋고, 응답한 사람 칸에 붉은 도장이 찍힌다 */
.stamps { display: grid; grid-template-columns: repeat(auto-fill, minmax(62px, 1fr)); margin-top: 10px; padding: 0 1px 1px 0; }
.stamp { border: 1px solid var(--line2); margin: 0 -1px -1px 0; display: flex; flex-direction: column; align-items: center; gap: 3px; padding: 8px 3px 5px; min-height: 76px; }
.seal { width: 42px; height: 42px; border-radius: 50%; display: grid; place-items: center; font-size: 11px; font-weight: 700; line-height: 1.05; text-align: center; border: 2px solid transparent; color: transparent; flex: none; overflow: hidden; }
.stamp.read .seal { border: 2px dashed var(--line2); color: var(--mut); }
.stamp.done .seal, .seal.big { border: 2.5px solid var(--seal); color: var(--seal); transform: rotate(-9deg); box-shadow: inset 0 0 0 2px var(--surface), inset 0 0 0 3px var(--seal); }
.stamp.done:nth-child(3n) .seal { transform: rotate(5deg); }
.stamp.done:nth-child(4n) .seal { transform: rotate(-3deg); }
.seal.big { width: 52px; height: 52px; font-size: 13px; }
.who { font-size: 11px; color: var(--mut); max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.legend { margin-top: 6px; }
.progress { display: flex; flex-direction: column; gap: 6px; }
.meter-note { font-size: 13px; color: var(--mut); margin-top: 8px; }

/* 대화·답글 */
.pane-chat { display: flex; flex-direction: column; }
.log { flex: 1; min-height: 0; overflow: auto; padding: 12px 16px; display: flex; flex-direction: column; gap: 10px; }
.msg { max-width: min(640px, 88%); background: var(--surface); border: 1px solid var(--line); border-radius: 4px 14px 14px 14px; padding: 8px 12px; align-self: flex-start; }
.msg.mine { align-self: flex-end; background: var(--pri-soft); border-color: transparent; border-radius: 14px 4px 14px 14px; }
.msg header { display: flex; gap: 8px; align-items: baseline; font-size: 13px; }
.msg blockquote { border-left: 3px solid var(--line2); padding-left: 8px; font-size: 13px; color: var(--mut); margin: 4px 0; }
.msg footer { display: flex; gap: 4px; margin: 2px 0 -4px -6px; }
.msg footer .link { font-size: 12px; color: var(--mut); min-height: 28px; }
.more { align-self: center; }
.comments { display: flex; flex-direction: column; gap: 10px; }
.composer { position: relative; display: flex; flex-direction: column; gap: 6px; padding: 10px 16px calc(10px + env(safe-area-inset-bottom)); border-top: 1px solid var(--line); background: var(--bg); }
.post .composer { border: 0; padding: 0; }
.composer-row { display: flex; gap: 8px; align-items: flex-end; }
.composer textarea { resize: none; }
.composer .uploader { flex-direction: row; flex-wrap: wrap; align-items: center; }
.composer .uploader > button { min-height: 36px; padding: 4px 12px; font-size: 13px; }
.replybar { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--mut); border-left: 3px solid var(--pri); padding-left: 8px; }
.replybar button { min-height: 28px; padding: 0 8px; }
.mention-pop { position: absolute; bottom: 100%; left: 16px; background: var(--surface); border: 1px solid var(--line2); border-radius: 8px; display: flex; flex-direction: column; min-width: 160px; overflow: hidden; z-index: 6; }
.chip button, .mention-pop button { white-space: normal; }
.mention-pop button { justify-content: flex-start; border-radius: 0; min-height: 40px; }
.mention-pop button:hover, .mention-pop button:focus { background: var(--pri-soft); }

/* 첫 화면·로그인 */
.landing { max-width: 1040px; margin: 0 auto; padding: calc(20px + env(safe-area-inset-top)) 20px 32px; }
.landing-head { padding-bottom: 28px; }
.landing-head .brand { padding: 0; font-size: 20px; }
.landing-body { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(300px, 380px); gap: 48px; align-items: start; }
.pitch { display: flex; flex-direction: column; gap: 16px; }
.pitch h1 { font-size: clamp(28px, 4.4vw, 42px); line-height: 1.25; letter-spacing: -.03em; }
.pitch > p { font-size: 16px; color: var(--mut); max-width: 52ch; }
.sample { margin-top: 12px; max-width: 520px; }
.sample h3 { margin: 0; font-size: 18px; }
.sample .stamps { grid-template-columns: repeat(4, 1fr); }
.doc-top .doc-type, h2 .doc-type, .tpl .doc-type { min-width: 0; }
.sample .stamp.done .seal { animation: press .32s cubic-bezier(.2, 1.4, .4, 1) both; animation-delay: calc(var(--i) * .22s + .5s); }
@keyframes press { from { opacity: 0; scale: 1.7; } to { opacity: 1; scale: 1; } }
@media (prefers-reduced-motion: reduce) { .sample .stamp.done .seal { animation: none; } #toast { transition: none; } }
.login-card { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 22px; display: flex; flex-direction: column; gap: 10px; }
.social { display: flex; align-items: center; justify-content: center; gap: 10px; min-height: 48px; border-radius: 8px; border: 1px solid var(--line2); background: #fff; color: #1f1f1f; font-weight: 500; text-decoration: none; }
.social.apple { background: #000; color: #fff; border-color: #000; }
@media (prefers-color-scheme: dark) { .social.apple { background: #fff; color: #000; border-color: #fff; } }
.or { display: flex; align-items: center; gap: 12px; color: var(--mut); font-size: 13px; margin: 4px 0; }
.or::before, .or::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.say { font-size: 13px; color: var(--mut); min-height: 1.4em; }

@media (max-width: 859px) {
  .app { grid-template-columns: minmax(0, 1fr); }
  .rail { display: none; }
  .back { display: block; }
  .only-narrow { display: block; }
  .landing-body { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .doc { padding: 16px; }
  .doc h1 { font-size: 21px; }
  .doc-row { flex-wrap: wrap; }
  .qrow { grid-template-columns: 1fr; }
}
@media print { .rail, .chead, .composer, .bar, #toast { display: none !important; } .app { display: block; height: auto; } .main { overflow: visible; } }
.legal .doc h2 { margin-top: 16px; }
.legal .list { list-style: disc; padding-left: 20px; display: flex; flex-direction: column; gap: 4px; }