:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-2: #f1f3f6;
  --surface-3: #e8ebf0;
  --border: #e1e5eb;
  --border-strong: #cdd3dc;
  --text: #1b1f27;
  --text-2: #4a5161;
  --text-3: #626a7e; /* 흰 5.41 · --bg 5.05 · --surface-2 4.87 · --surface-3 4.53 (모두 AA, 같은 색상 계열 중 가장 옅은 값). 이전 #7a8293은 흰 3.86 */
  --accent: #1e3a8a;
  --accent-hover: #1e40af;
  --accent-soft: #eef2fa;
  --accent-text: #1e40af;
  --accent-rgb: 30, 58, 138; /* --accent 의 RGB 값 — 반투명 강조(rgba)용 */
  --success: #2b8a3e;
  --success-soft: #e6f4ea;
  --warn: #a35300; /* --warn-soft 위 4.98:1 (AA) — .status-line.bad · .chip.warn · .badge-status.reading. 이전 #b35c00은 4.25:1 */
  --warn-soft: #fff1e0;
  --danger: #c92a2a;
  --danger-soft: #fdecec;
  --hl-yellow: rgba(255, 212, 0, .38);
  --hl-green: rgba(64, 192, 87, .32);
  --hl-blue: rgba(77, 171, 247, .32);
  --hl-pink: rgba(240, 101, 149, .32);
  --hl-purple: rgba(151, 117, 250, .32);
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 4px 16px rgba(16, 24, 40, .08);
  --shadow-lg: 0 12px 40px rgba(16, 24, 40, .22);
  --radius: 10px;
  --font: "Pretendard", "Pretendard Variable", -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo",
    "Malgun Gothic", "Noto Sans KR", "Segoe UI", sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Code", Consolas, monospace;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: #111318;
  --surface: #181b22;
  --surface-2: #1f232c;
  --surface-3: #272c37;
  --border: #2a2f3a;
  --border-strong: #3a4150;
  --text: #e7e9ee;
  --text-2: #b4bac6;
  --text-3: #868d9c;
  /* 네이비는 어두운 배경에서 대비 부족 → 같은 계열의 로열 블루. 흰 글자 4.85:1, 배경 대비 3.83:1 */
  --accent: #4169e1;
  --accent-hover: #3459d1;
  --accent-soft: #1b2440;
  --accent-text: #9db5f5;
  --accent-rgb: 65, 105, 225;
  --success: #51cf66;
  --success-soft: #1d3324;
  --warn: #ffa94d;
  --warn-soft: #3a2a17;
  --danger: #ff6b6b;
  --danger-soft: #3b1f22;
  --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 4px 16px rgba(0, 0, 0, .3);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, .55);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  font-family: var(--font); font-size: 14px; line-height: 1.5; color: var(--text); background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
button, input, select, textarea { font: inherit; color: inherit; }
/* 체크박스·라디오·범위 막대도 대표색으로 (브라우저 기본 파랑 대신) */
input[type=checkbox], input[type=radio], input[type=range], progress { accent-color: var(--accent); }
a { color: var(--accent-text); text-decoration: none; }
a:hover { text-decoration: underline; }
.hidden { display: none !important; }
.muted { color: var(--text-3); }
.small { font-size: 12px; }
mark { background: var(--hl-yellow); color: inherit; border-radius: 2px; padding: 0 1px; }
kbd { font-family: var(--mono); font-size: 11px; padding: 1px 5px; border: 1px solid var(--border-strong); border-radius: 4px; }

#app { display: grid; grid-template-columns: 236px 1fr; height: 100vh; overflow: hidden; }
#app.reading { grid-template-columns: 1fr; }
#main { min-width: 0; min-height: 0; overflow: hidden; }
#app.reading #sidebar { display: none; }

/* ---------------- sidebar ---------------- */
#sidebar {
  background: var(--surface); border-right: 1px solid var(--border); display: flex; flex-direction: column;
  overflow-y: auto; padding: 14px 10px 10px;
}
.brand { display: flex; align-items: center; gap: 10px; padding: 4px 8px 14px; }
.brand-mark {
  width: 28px; height: 28px; border-radius: 8px; background: var(--accent); color: #fff; display: grid;
  place-items: center; font-weight: 800; font-size: 15px;
}
.brand-name { font-weight: 750; font-size: 16px; letter-spacing: -.01em; }
.nav-section { margin-top: 14px; }
.nav-title {
  display: flex; align-items: center; justify-content: space-between; font-size: 11.5px; font-weight: 650;
  color: var(--text-3); padding: 0 8px 4px; letter-spacing: .02em;
}
.nav-item {
  width: 100%; display: flex; align-items: center; gap: 9px; padding: 6px 8px; border: 0; background: none;
  border-radius: 7px; cursor: pointer; text-align: left; color: var(--text-2); font-size: 13.5px; position: relative;
}
.nav-item:hover { background: var(--surface-2); color: var(--text); }
.nav-item.active { background: var(--accent-soft); color: var(--accent-text); font-weight: 600; }
.nav-item.drop-target { outline: 2px dashed var(--accent); background: var(--accent-soft); }
.nav-item .ico { font-style: normal; width: 16px; text-align: center; opacity: .8; flex: none; }
svg.ico { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.icon-btn.small svg.ico { width: 14px; height: 14px; }
.nav-item .count { margin-left: auto; font-size: 11.5px; color: var(--text-3); font-variant-numeric: tabular-nums; }
.nav-item .label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.nav-main .nav-item { font-weight: 600; color: var(--text); }
.tree-children { padding-left: 14px; }
.tree-row { display: flex; align-items: center; }
.tree-row .nav-item { flex: 1; min-width: 0; }
.tree-row .row-menu { visibility: hidden; }
.tree-row:hover .row-menu { visibility: visible; }
.tag-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--text-3); flex: none; }
.sidebar-foot { margin-top: auto; padding-top: 12px; display: flex; align-items: center; gap: 4px; border-top: 1px solid var(--border); }
.empty-hint { font-size: 12px; color: var(--text-3); padding: 2px 8px 4px; }

/* ---------------- common controls ---------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px; height: 32px; padding: 0 12px;
  border-radius: 8px; border: 1px solid var(--border-strong); background: var(--surface); cursor: pointer;
  font-size: 13px; font-weight: 550; white-space: nowrap; color: var(--text);
}
.btn:hover { background: var(--surface-2); }
.btn:disabled { opacity: .5; cursor: default; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-hover); }
.btn.ghost { border-color: transparent; background: none; }
.btn.ghost:hover { background: var(--surface-2); }
.btn.danger { color: var(--danger); }
.btn.sm { height: 26px; padding: 0 9px; font-size: 12px; border-radius: 7px; }
.icon-btn {
  display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 7px; border: 0;
  background: none; cursor: pointer; color: var(--text-2); font-size: 15px; flex: none;
}
.icon-btn:hover { background: var(--surface-2); color: var(--text); }
.icon-btn.small { width: 22px; height: 22px; font-size: 13px; }
.icon-btn.on { color: #f59f00; }
.input, select.input, textarea.input {
  height: 34px; padding: 0 10px; border: 1px solid var(--border-strong); border-radius: 8px; background: var(--surface);
  outline: none; min-width: 0;
}
textarea.input { height: auto; padding: 8px 10px; resize: vertical; line-height: 1.55; }
.input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.field { display: flex; flex-direction: column; gap: 5px; margin-bottom: 12px; }
.field > label { font-size: 12px; font-weight: 600; color: var(--text-2); }
.field > .input, .field > select.input { width: 100%; }
.field .hint { font-size: 12px; color: var(--text-3); }
.row { display: flex; gap: 10px; align-items: center; }
.row > .grow { flex: 1; min-width: 0; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 12px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0 12px; }
.seg { display: inline-flex; background: var(--surface-2); border-radius: 8px; padding: 2px; gap: 2px; }
.seg button {
  border: 0; background: none; padding: 4px 10px; border-radius: 6px; cursor: pointer; font-size: 12.5px; color: var(--text-2);
}
.seg button.active { background: var(--surface); color: var(--text); font-weight: 600; box-shadow: var(--shadow); }
.chip {
  display: inline-flex; align-items: center; gap: 4px; padding: 1px 8px; border-radius: 999px; font-size: 11.5px;
  background: var(--surface-2); color: var(--text-2); border: 1px solid var(--border); white-space: nowrap;
}
.chip.accent { background: var(--accent-soft); color: var(--accent-text); border-color: transparent; }
.chip.success { background: var(--success-soft); color: var(--success); border-color: transparent; }
.chip.warn { background: var(--warn-soft); color: var(--warn); border-color: transparent; }
.chip button { border: 0; background: none; padding: 0; cursor: pointer; color: inherit; opacity: .6; }
.chip button:hover { opacity: 1; }
.chips { display: flex; flex-wrap: wrap; gap: 5px; }
.badge-status { font-size: 11px; padding: 1px 7px; border-radius: 5px; font-weight: 600; }
.badge-status.unread { background: var(--surface-3); color: var(--text-2); }
.badge-status.reading { background: var(--warn-soft); color: var(--warn); }
.badge-status.done { background: var(--success-soft); color: var(--success); }
.spinner {
  width: 16px; height: 16px; border: 2px solid var(--border-strong); border-top-color: var(--accent); border-radius: 50%;
  animation: spin .8s linear infinite; display: inline-block; flex: none;
}
@keyframes spin { to { transform: rotate(360deg); } }
.progress { height: 6px; background: var(--surface-3); border-radius: 99px; overflow: hidden; }
.progress > div { height: 100%; background: var(--accent); border-radius: 99px; transition: width .4s; }
.progress.indeterminate > div { width: 35% !important; animation: indet 1.3s ease-in-out infinite; }
@keyframes indet { 0% { transform: translateX(-100%); } 100% { transform: translateX(300%); } }

/* ---------------- toolbar / views ---------------- */
.view { display: flex; flex-direction: column; height: 100vh; min-width: 0; }
.toolbar {
  display: flex; align-items: center; gap: 8px; padding: 10px 16px; border-bottom: 1px solid var(--border);
  background: var(--surface); min-height: 56px; flex-wrap: wrap;
}
.toolbar h1 { font-size: 16px; margin: 0 8px 0 0; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 260px; }
.searchbox { position: relative; flex: 1; min-width: 180px; max-width: 520px; }
.searchbox .input { width: 100%; padding-left: 32px; }
.searchbox::before { content: "⌕"; position: absolute; left: 10px; top: 50%; transform: translateY(-52%); color: var(--text-3); font-size: 16px; }
.spacer { flex: 1; }

.menu-wrap { position: relative; }
.menu {
  position: absolute; z-index: 60; top: calc(100% + 4px); right: 0; min-width: 210px; background: var(--surface);
  border: 1px solid var(--border); border-radius: 10px; box-shadow: var(--shadow-lg); padding: 5px;
}
.menu.left { left: 0; right: auto; }
.menu button {
  display: flex; width: 100%; align-items: center; gap: 10px; border: 0; background: none; padding: 7px 10px;
  border-radius: 7px; cursor: pointer; text-align: left; font-size: 13px;
}
.menu button:hover { background: var(--surface-2); }
.menu button .sub { margin-left: auto; color: var(--text-3); font-size: 11.5px; }
.menu hr { border: 0; border-top: 1px solid var(--border); margin: 4px 2px; }
.menu .danger { color: var(--danger); }

/* ---------------- library ---------------- */
.lib-body { flex: 1; display: grid; grid-template-columns: 1fr 400px; min-height: 0; }
.lib-body.no-detail { grid-template-columns: 1fr 0; }
.lib-list { overflow-y: auto; min-width: 0; position: relative; }
.list-head {
  position: sticky; top: 0; z-index: 2; display: flex; align-items: center; gap: 10px; padding: 7px 16px;
  background: var(--bg); border-bottom: 1px solid var(--border); font-size: 12px; color: var(--text-3);
}
.bulkbar {
  position: sticky; top: 0; z-index: 3; display: flex; align-items: center; gap: 6px; padding: 7px 16px; flex-wrap: wrap;
  background: var(--accent-soft); border-bottom: 1px solid var(--border); font-size: 13px;
}
.paper-row {
  display: grid; grid-template-columns: 22px 24px 1fr auto; gap: 8px; align-items: start; padding: 11px 16px;
  border-bottom: 1px solid var(--border); cursor: pointer; background: var(--surface);
}
.paper-row:hover { background: var(--surface-2); }
.paper-row.active { background: var(--accent-soft); }
.paper-row.dragging { opacity: .5; }
.paper-row input[type=checkbox] { margin-top: 4px; }
.paper-row .star { border: 0; background: none; cursor: pointer; color: var(--border-strong); font-size: 16px; padding: 0; line-height: 1.3; }
.paper-row .star.on { color: #f59f00; }
.paper-title { font-weight: 620; font-size: 14.5px; line-height: 1.4; letter-spacing: -.005em; }
.paper-sub { color: var(--text-2); font-size: 12.5px; margin-top: 2px; }
.paper-sub .venue { font-style: italic; }
.paper-meta { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 6px; align-items: center; }
.paper-snippet { font-size: 12px; color: var(--text-2); margin-top: 6px; padding: 5px 8px; background: var(--surface-2); border-radius: 6px; }
.row-side { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; font-size: 12px; color: var(--text-3); }
.pdf-badge { font-size: 10.5px; font-weight: 700; color: var(--danger); border: 1px solid currentColor; border-radius: 4px; padding: 0 4px; }
.empty {
  display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; gap: 10px;
  padding: 70px 24px; color: var(--text-2);
}
.empty .big { font-size: 40px; opacity: .5; }
.empty h3 { margin: 0; font-size: 17px; color: var(--text); }
.empty p { margin: 0; max-width: 420px; }

/* detail panel */
.detail { border-left: 1px solid var(--border); background: var(--surface); overflow-y: auto; min-width: 0; }
.detail-inner { padding: 18px 20px 30px; }
.detail h2 { font-size: 17px; line-height: 1.4; margin: 0 0 6px; letter-spacing: -.01em; }
.detail .authors { color: var(--text-2); font-size: 13px; }
.detail .venue-line { color: var(--text-3); font-size: 12.5px; margin-top: 3px; }
.detail .actions { display: flex; gap: 6px; flex-wrap: wrap; margin: 14px 0; }
.kv { display: grid; grid-template-columns: 74px 1fr; gap: 6px 10px; font-size: 13px; margin: 12px 0; }
.kv dt { color: var(--text-3); }
.kv dd { margin: 0; word-break: break-word; }
.section-title { font-size: 12px; font-weight: 700; color: var(--text-3); margin: 18px 0 8px; letter-spacing: .02em; }
.abstract { font-size: 13.5px; color: var(--text-2); line-height: 1.7; }
.abstract.clamp { display: -webkit-box; -webkit-line-clamp: 6; -webkit-box-orient: vertical; overflow: hidden; }
.rating button { border: 0; background: none; cursor: pointer; font-size: 16px; color: var(--border-strong); padding: 0 1px; }
.rating button.on { color: #f59f00; }
.tag-input { display: flex; flex-wrap: wrap; gap: 5px; align-items: center; border: 1px solid var(--border-strong); border-radius: 8px; padding: 5px 6px; }
.tag-input input { border: 0; outline: none; background: none; min-width: 90px; flex: 1; font-size: 13px; padding: 2px; }
.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--border); margin-top: 18px; }
.tabs button {
  border: 0; background: none; padding: 8px 10px; cursor: pointer; font-size: 13px; color: var(--text-3);
  border-bottom: 2px solid transparent; margin-bottom: -1px; font-weight: 550;
}
.tabs button.active { color: var(--text); border-bottom-color: var(--accent); }
.mini-list .mini { padding: 10px 0; border-bottom: 1px solid var(--border); }
.mini .t { font-weight: 600; font-size: 13px; line-height: 1.4; }
.mini .s { font-size: 12px; color: var(--text-3); margin-top: 2px; }
.mini .a { display: flex; gap: 6px; margin-top: 6px; align-items: center; }

/* ---------------- discover ---------------- */
.discover-head { padding: 22px 24px 12px; background: var(--surface); border-bottom: 1px solid var(--border); }
.discover-head h1 { margin: 0 0 4px; font-size: 20px; }
.discover-head .sub { color: var(--text-3); font-size: 13px; margin-bottom: 14px; }
.discover-bar { display: flex; gap: 8px; flex-wrap: wrap; }
.discover-bar .searchbox { max-width: none; }
.discover-bar .searchbox .input { height: 40px; font-size: 15px; }
.discover-filters { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-top: 10px; font-size: 13px; color: var(--text-2); }
.discover-filters .input { height: 30px; }
.discover-results { flex: 1; overflow-y: auto; padding: 8px 24px 40px; }
.result-info { font-size: 12.5px; color: var(--text-3); padding: 10px 0; display: flex; align-items: center; gap: 8px; }
.result { padding: 14px 0 16px; border-bottom: 1px solid var(--border); max-width: 900px; }
.result .r-title { font-size: 16px; font-weight: 600; line-height: 1.4; }
.result .r-title a { color: var(--accent-text); }
.result .r-meta { font-size: 12.5px; color: var(--success); margin-top: 3px; }
:root[data-theme="dark"] .result .r-meta { color: #8ce99a; }
.result .r-abs { font-size: 13.5px; color: var(--text-2); margin-top: 6px; line-height: 1.65; }
.result .r-abs.clamp { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; cursor: pointer; }
.result .r-tldr { font-size: 13px; margin-top: 6px; padding: 6px 10px; border-left: 3px solid var(--accent); background: var(--accent-soft); border-radius: 0 6px 6px 0; }
.result .r-actions { display: flex; gap: 4px 14px; margin-top: 8px; flex-wrap: wrap; align-items: center; font-size: 13px; }
.result .r-actions button.link { border: 0; background: none; padding: 0; color: var(--accent-text); cursor: pointer; font-size: 13px; }
.result .r-actions button.link:hover { text-decoration: underline; }
.result .r-actions .in-lib { color: var(--success); font-weight: 600; }
.crumb { display: flex; align-items: center; gap: 8px; padding: 12px 0 4px; font-size: 13px; }
.pager { display: flex; gap: 6px; justify-content: center; padding: 20px 0; }

/* ---------------- reader ---------------- */
.reader { display: grid; grid-template-columns: 1fr 440px; height: 100vh; overflow: hidden; }
.reader.panel-closed { grid-template-columns: 1fr 0; }
.reader-main { display: flex; flex-direction: column; min-width: 0; min-height: 0; background: var(--surface-3); }
.reader-bar {
  display: flex; align-items: center; gap: 6px; padding: 8px 12px; background: var(--surface); border-bottom: 1px solid var(--border);
}
.reader-bar .title { font-weight: 650; font-size: 14px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; min-width: 0; }
.reader-bar .pageno { display: flex; align-items: center; gap: 4px; font-size: 13px; color: var(--text-2); }
.reader-bar .pageno input { width: 48px; height: 28px; text-align: center; }
.hl-colors { display: flex; gap: 4px; padding: 0 6px; }
.hl-color { width: 18px; height: 18px; border-radius: 50%; border: 2px solid transparent; cursor: pointer; padding: 0; }
.hl-color.active { border-color: var(--text); }
.hl-color[data-c=yellow] { background: #ffd43b; }
.hl-color[data-c=green] { background: #69db7c; }
.hl-color[data-c=blue] { background: #74c0fc; }
.hl-color[data-c=pink] { background: #f783ac; }
.hl-color[data-c=purple] { background: #b197fc; }
.pdf-scroll { flex: 1; overflow: auto; position: relative; padding: 20px 0 60px; }
.pdf-pages { display: flex; flex-direction: column; align-items: center; gap: 14px; }
.pdf-page { position: relative; background: #fff; box-shadow: var(--shadow); flex: none; }
.pdf-page canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.pdf-page .page-label { position: absolute; top: -18px; right: 0; font-size: 11px; color: var(--text-3); }
.pdf-page.flash { outline: 3px solid var(--accent); outline-offset: 2px; transition: outline-color 1.2s; }
.hl-layer { position: absolute; inset: 0; pointer-events: none; z-index: 2; mix-blend-mode: multiply; }
.hl-rect { position: absolute; pointer-events: auto; cursor: pointer; border-radius: 2px; }
.hl-rect.yellow { background: var(--hl-yellow); }
.hl-rect.green { background: var(--hl-green); }
.hl-rect.blue { background: var(--hl-blue); }
.hl-rect.pink { background: var(--hl-pink); }
.hl-rect.purple { background: var(--hl-purple); }
.hl-rect.has-comment::after { content: ""; position: absolute; right: -5px; top: -5px; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.hl-rect.pulse { animation: pulse 1.4s ease-out 2; }
@keyframes pulse { 0%, 100% { box-shadow: 0 0 0 0 rgba(var(--accent-rgb), 0); } 50% { box-shadow: 0 0 0 4px rgba(var(--accent-rgb), .45); } }
.textLayer {
  position: absolute; text-align: initial; inset: 0; overflow: clip; opacity: 1; line-height: 1; text-size-adjust: none;
  forced-color-adjust: none; transform-origin: 0 0; caret-color: CanvasText; z-index: 1;
}
.textLayer :is(span, br) { color: transparent; position: absolute; white-space: pre; cursor: text; transform-origin: 0% 0%; }
.textLayer > :not(.markedContent), .textLayer .markedContent span:not(.markedContent) { z-index: 1; }
.textLayer span.markedContent { top: 0; height: 0; }
.textLayer ::selection { background: rgba(var(--accent-rgb), .25); }
.textLayer br::selection { background: transparent; }
.textLayer .endOfContent { display: block; position: absolute; inset: 100% 0 0; z-index: 0; cursor: default; user-select: none; }
.textLayer.selecting .endOfContent { top: 0; }
.sel-pop {
  position: fixed; z-index: 70; background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  box-shadow: var(--shadow-lg); padding: 5px; display: flex; gap: 2px; align-items: center;
}
.sel-pop .hl-color { width: 20px; height: 20px; margin: 0 2px; }
.sel-pop .btn { height: 28px; }
.sel-pop .sep { width: 1px; height: 20px; background: var(--border); margin: 0 4px; }
.ann-pop { flex-direction: column; align-items: stretch; width: 290px; gap: 6px; padding: 10px; }

.panel { background: var(--surface); border-left: 1px solid var(--border); display: flex; flex-direction: column; min-width: 0; min-height: 0; }
.panel .tabs { margin: 0; padding: 0 10px; flex: none; }
.panel-body { flex: 1; overflow-y: auto; padding: 16px 18px 30px; min-height: 0; }
.panel-body.chat-body { padding: 0; display: flex; flex-direction: column; }

/* AI summary */
.ai-cta { text-align: center; padding: 40px 10px; color: var(--text-2); }
.ai-cta .big { font-size: 34px; }
.ai-cta h3 { margin: 6px 0; color: var(--text); font-size: 16px; }
.tldr { background: var(--accent-soft); border-radius: 10px; padding: 12px 14px; font-size: 14px; line-height: 1.65; }
.tldr b { color: var(--accent-text); display: block; font-size: 11.5px; margin-bottom: 2px; letter-spacing: .03em; }
.qmr { display: grid; gap: 8px; margin-top: 12px; }
.qmr div { font-size: 13.5px; line-height: 1.65; }
.qmr b { display: block; font-size: 11.5px; color: var(--text-3); }
.level-pick { display: flex; gap: 6px; margin: 16px 0 10px; flex-wrap: wrap; }
.level-pick button { border: 1px solid var(--border-strong); background: var(--surface); padding: 4px 12px; border-radius: 99px; cursor: pointer; font-size: 12.5px; }
.level-pick button.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.prose { font-size: 14px; line-height: 1.75; color: var(--text); word-break: keep-all; overflow-wrap: anywhere; }
.prose p { margin: 0 0 .7em; }
.prose p:last-child { margin-bottom: 0; }
.prose ul, .prose ol { padding-left: 1.3em; margin: .3em 0 .7em; }
.prose code { font-family: var(--mono); font-size: .9em; background: var(--surface-2); padding: 1px 4px; border-radius: 4px; }
.prose pre { background: var(--surface-2); padding: 10px; border-radius: 8px; overflow-x: auto; }
.prose blockquote { margin: .5em 0; padding: 2px 12px; border-left: 3px solid var(--border-strong); color: var(--text-2); }
.prose h1, .prose h2, .prose h3 { font-size: 15px; margin: 1em 0 .4em; }
.prose table { border-collapse: collapse; font-size: 13px; }
.prose td, .prose th { border: 1px solid var(--border); padding: 4px 8px; }
.prose .katex-display { overflow-x: auto; overflow-y: hidden; padding: 4px 0; }
.acc { border: 1px solid var(--border); border-radius: 10px; margin-bottom: 8px; overflow: hidden; }
.acc > .acc-head {
  width: 100%; display: flex; align-items: center; gap: 10px; padding: 10px 12px; border: 0; background: var(--surface-2);
  cursor: pointer; text-align: left; user-select: none;
}
.acc > .acc-head:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
.acc > .acc-head .num { width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent-text); font-size: 11.5px; font-weight: 700; flex: none; }
.acc > .acc-head .h { font-weight: 600; font-size: 13.5px; flex: 1; }
.acc > .acc-head .arrow { color: var(--text-3); font-size: 11px; transition: transform .2s; }
.acc.open > .acc-head .arrow { transform: rotate(180deg); }
.acc > .acc-body { display: none; padding: 12px 14px; border-top: 1px solid var(--border); }
.acc.open > .acc-body { display: block; }
.page-link { border: 0; background: var(--surface-3); color: var(--text-2); font-size: 11px; padding: 1px 6px; border-radius: 5px; cursor: pointer; flex: none; }
.page-link:hover { background: var(--accent-soft); color: var(--accent-text); }
.keypoints { list-style: none; padding: 0; margin: 10px 0 0; }
.keypoints li { position: relative; padding-left: 14px; font-size: 13px; color: var(--text-2); margin-bottom: 4px; }
.keypoints li::before { content: "▸"; position: absolute; left: 0; color: var(--accent); }
.formula { border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; margin-bottom: 10px; }
.formula .f-head { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.formula .f-name { font-weight: 650; font-size: 13.5px; flex: 1; }
.formula .f-tex { background: var(--surface-2); border-radius: 8px; padding: 10px; overflow-x: auto; text-align: center; font-size: 15px; }
.formula table { width: 100%; border-collapse: collapse; margin-top: 8px; font-size: 12.5px; }
.formula td { padding: 4px 6px; border-top: 1px solid var(--border); vertical-align: top; }
.formula td:first-child { width: 80px; text-align: center; }
.formula details { margin-top: 8px; font-size: 13px; }
.formula summary { cursor: pointer; color: var(--accent-text); font-weight: 600; }
.list-block ul { padding-left: 1.2em; margin: 4px 0; }
.list-block li { font-size: 13.5px; margin-bottom: 4px; line-height: 1.6; }

/* chat */
.chat-log { flex: 1; overflow-y: auto; padding: 16px 16px 8px; display: flex; flex-direction: column; gap: 14px; }
.msg { max-width: 100%; }
.msg.user { align-self: flex-end; background: var(--accent); color: #fff; padding: 8px 12px; border-radius: 14px 14px 4px 14px; max-width: 88%; white-space: pre-wrap; font-size: 14px; }
.msg.assistant { align-self: stretch; }
.msg.assistant .prose { font-size: 14px; }
.msg .cite-ref {
  display: inline-grid; place-items: center; min-width: 17px; height: 17px; padding: 0 4px; margin: 0 1px; font-size: 10.5px; font-weight: 700;
  border-radius: 5px; background: var(--accent-soft); color: var(--accent-text); cursor: pointer; vertical-align: 2px; border: 0; line-height: 1;
}
.msg .cite-list { margin-top: 8px; display: flex; flex-direction: column; gap: 4px; }
.msg .cite-item { font-size: 12px; color: var(--text-2); display: flex; gap: 6px; align-items: baseline; cursor: pointer; border-radius: 6px; padding: 3px 4px; }
.msg .cite-item:hover { background: var(--surface-2); }
.msg .cite-item q { font-style: italic; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.msg.error { color: var(--danger); font-size: 13px; background: var(--danger-soft); padding: 8px 12px; border-radius: 8px; }
.typing { display: inline-flex; gap: 3px; }
.typing span { width: 6px; height: 6px; border-radius: 50%; background: var(--text-3); animation: blink 1.2s infinite; }
.typing span:nth-child(2) { animation-delay: .2s; }
.typing span:nth-child(3) { animation-delay: .4s; }
@keyframes blink { 0%, 80%, 100% { opacity: .25; } 40% { opacity: 1; } }
.suggest { display: flex; flex-direction: column; gap: 6px; padding: 4px 0; }
.suggest button { text-align: left; border: 1px solid var(--border); background: var(--surface); border-radius: 10px; padding: 8px 12px; cursor: pointer; font-size: 13px; color: var(--text-2); }
.suggest button:hover { border-color: var(--accent); color: var(--accent-text); }
.chat-input { border-top: 1px solid var(--border); padding: 10px 12px; display: flex; gap: 8px; align-items: flex-end; }
.chat-input textarea { flex: 1; min-height: 40px; max-height: 160px; resize: none; }
.quote-chip { margin: 0 12px; padding: 6px 10px; background: var(--surface-2); border-left: 3px solid var(--accent); border-radius: 0 6px 6px 0; font-size: 12px; color: var(--text-2); display: flex; gap: 8px; align-items: flex-start; }
.quote-chip span { flex: 1; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

/* annotations list */
.ann-item { border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; margin-bottom: 8px; border-left-width: 4px; }
.ann-item.yellow { border-left-color: #fcc419; }
.ann-item.green { border-left-color: #51cf66; }
.ann-item.blue { border-left-color: #4dabf7; }
.ann-item.pink { border-left-color: #f06595; }
.ann-item.purple { border-left-color: #9775fa; }
.ann-item .q { font-size: 13px; line-height: 1.6; cursor: pointer; }
.ann-item .c { font-size: 13px; margin-top: 6px; color: var(--text-2); white-space: pre-wrap; }
.ann-item .foot { display: flex; align-items: center; gap: 6px; margin-top: 6px; font-size: 11.5px; color: var(--text-3); }
.note-editor { width: 100%; min-height: 380px; font-family: var(--mono); font-size: 13px; }
.cite-block { border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; margin-bottom: 8px; }
.cite-block .name { font-size: 11.5px; font-weight: 700; color: var(--text-3); display: flex; align-items: center; justify-content: space-between; margin-bottom: 4px; }
.cite-block .body { font-size: 13px; line-height: 1.6; word-break: break-word; }
.code-box { font-family: var(--mono); font-size: 12px; white-space: pre-wrap; background: var(--surface-2); padding: 10px; border-radius: 8px; max-height: 260px; overflow: auto; word-break: break-all; }

/* ---------------- modal / toast ---------------- */
.modal-backdrop { position: fixed; inset: 0; background: rgba(15, 18, 25, .45); z-index: 100; display: grid; place-items: center; padding: 20px; animation: fade .12s; }
@keyframes fade { from { opacity: 0; } }
.modal { background: var(--surface); border-radius: 14px; box-shadow: var(--shadow-lg); width: min(560px, 100%); max-height: calc(100vh - 40px); display: flex; flex-direction: column; }
.modal.wide { width: min(760px, 100%); }
.modal-head { display: flex; align-items: center; padding: 16px 20px 8px; gap: 10px; }
.modal-head h3 { margin: 0; font-size: 16px; flex: 1; }
.modal-body { padding: 8px 20px 16px; overflow-y: auto; }
.modal-foot { display: flex; justify-content: flex-end; gap: 8px; padding: 12px 20px 16px; border-top: 1px solid var(--border); }
.modal-foot .left { margin-right: auto; display: flex; gap: 8px; align-items: center; }
#toasts { position: fixed; bottom: 18px; left: 50%; transform: translateX(-50%); z-index: 200; display: flex; flex-direction: column; gap: 8px; align-items: center; pointer-events: none; }
.toast { background: #1f2430; color: #fff; padding: 9px 16px; border-radius: 10px; font-size: 13px; box-shadow: var(--shadow-lg); animation: fade .15s; max-width: 560px; pointer-events: auto; }
.toast.error { background: var(--danger); }
.toast.success { background: #2b8a3e; }
#drop-overlay { position: fixed; inset: 0; z-index: 150; background: rgba(var(--accent-rgb), .15); border: 3px dashed var(--accent); display: grid; place-items: center; pointer-events: none; }
#drop-overlay div { background: var(--surface); padding: 16px 24px; border-radius: 12px; font-weight: 650; box-shadow: var(--shadow-lg); }
.upload-result { display: flex; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--border); font-size: 13px; align-items: flex-start; }
.upload-result .st { flex: none; width: 18px; }
.preview-card { border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; margin-top: 10px; }
.check { display: flex; gap: 8px; align-items: center; font-size: 13px; cursor: pointer; }
.status-line { display: flex; gap: 8px; align-items: center; font-size: 13px; padding: 8px 10px; border-radius: 8px; background: var(--surface-2); }
.status-line.ok { background: var(--success-soft); color: var(--success); }
.status-line.bad { background: var(--warn-soft); color: var(--warn); }

@media (max-width: 1180px) {
  .lib-body { grid-template-columns: 1fr 340px; }
  .reader { grid-template-columns: 1fr 380px; }
}
@media (max-width: 900px) {
  #app { grid-template-columns: 1fr; }
  #sidebar { display: none; }
  .lib-body { grid-template-columns: 1fr; }
  .lib-body .detail { display: none; }
  .reader { grid-template-columns: 1fr; }
  .reader .panel { display: none; }
}

/* ---------------- 논문 쓰기 ---------------- */
.write-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 12px; max-width: 980px; }
.write-card { border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; background: var(--surface); display: flex; flex-direction: column; gap: 8px; }
.write-card .wc-title { font-weight: 700; font-size: 15px; }
.write-card .wc-desc { font-size: 13px; color: var(--text-2); line-height: 1.6; flex: 1; }
.write-card code, .prose code { font-family: var(--mono); font-size: 12px; background: var(--surface-2); padding: 1px 5px; border-radius: 4px; }
.ms-list { max-width: 980px; }
.ms-row { display: flex; align-items: center; gap: 10px; padding: 12px 14px; border: 1px solid var(--border); border-radius: 10px; margin-bottom: 8px; cursor: pointer; background: var(--surface); }
.ms-row:hover { border-color: var(--accent); }

.writer { display: grid; grid-template-rows: auto auto 1fr auto; height: 100vh; overflow: hidden; background: var(--bg); }
.writer-bar { display: flex; align-items: center; gap: 8px; padding: 8px 12px; background: var(--surface); border-bottom: 1px solid var(--border); }
.writer-bar .title { font-weight: 700; font-size: 15px; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.writer-tools { display: flex; align-items: center; gap: 4px; padding: 6px 12px; background: var(--surface); border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.writer-tools .sep { width: 1px; height: 20px; background: var(--border); margin: 0 6px; }
.writer-body { display: grid; grid-template-columns: 220px 1fr 1fr; min-height: 0; }
.view-edit .writer-body { grid-template-columns: 220px 1fr 0; }
.view-edit .writer-preview { display: none; }
.view-preview .writer-body { grid-template-columns: 220px 0 1fr; }
.view-preview .writer-edit { display: none; }
.writer-side { border-right: 1px solid var(--border); background: var(--surface); overflow-y: auto; padding: 12px 10px; min-height: 0; }
.outline-item { display: block; width: 100%; text-align: left; border: 0; background: none; padding: 4px 6px; border-radius: 6px; cursor: pointer; font-size: 12.5px; color: var(--text-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.outline-item:hover { background: var(--surface-2); color: var(--text); }
.cite-row { padding: 5px 6px; border-radius: 6px; margin-bottom: 4px; background: var(--surface-2); line-height: 1.4; }
.cite-row code { font-size: 11.5px; }
.cite-row.missing { background: var(--warn-soft); }
.cite-row .muted { font-size: 11.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.warn-text { color: var(--warn); font-size: 11px; }
.writer-edit { min-height: 0; display: flex; border-right: 1px solid var(--border); }
.writer-ta {
  flex: 1; border: 0; outline: none; resize: none; padding: 24px 28px 80px; font-family: var(--font); font-size: 15px;
  line-height: 1.85; background: var(--surface); color: var(--text); tab-size: 2;
}
.writer-preview { overflow-y: auto; min-height: 0; padding: 24px; background: var(--surface-3); }
.doc {
  max-width: 760px; margin: 0 auto; background: #fff; color: #1b1f27; padding: 56px 64px 72px; box-shadow: var(--shadow);
  font-family: "Times New Roman", "바탕", "Batang", "Noto Serif KR", serif; font-size: 15px; line-height: 1.8;
  word-break: keep-all; overflow-wrap: anywhere;
}
.doc .doc-title { text-align: center; font-size: 22px; margin: 0 0 24px; }
.doc h2 { font-size: 17px; margin: 22px 0 8px; }
.doc h3 { font-size: 15.5px; margin: 18px 0 6px; }
.doc h4 { font-size: 15px; margin: 14px 0 6px; }
.doc p { margin: 0 0 10px; }
.doc blockquote { margin: 8px 24px; color: #4a5161; }
.doc pre { background: #f1f3f6; padding: 10px; border-radius: 6px; font-size: 12.5px; white-space: pre-wrap; }
.doc .doc-pb { border-top: 1px dashed #cdd3dc; color: #7a8293; font-size: 11px; text-align: center; margin: 18px 0; }
.doc .doc-bib.hanging { padding-left: 2em; text-indent: -2em; }
.doc .fn-ref { color: #1e40af; /* 문서 미리보기는 항상 흰 종이 → 밝은 테마 --accent-text 고정 */ font-size: 11px; }
.doc .doc-notes { border-top: 1px solid #cdd3dc; margin-top: 28px; padding-top: 8px; font-size: 12.5px; line-height: 1.6; }
.doc .doc-notes ol { padding-left: 1.4em; margin: 0; }
.cite-warn { background: #fff1e0; color: #a35300; border-radius: 3px; padding: 0 2px; }
.writer-status { padding: 5px 14px; background: var(--surface); border-top: 1px solid var(--border); }
.cite-picker {
  position: fixed; z-index: 120; width: 520px; max-width: calc(100vw - 24px); background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; box-shadow: var(--shadow-lg); padding: 10px; display: flex; flex-direction: column; gap: 8px;
}
.cp-list { max-height: 340px; overflow-y: auto; }
.cp-item { display: flex; gap: 8px; align-items: flex-start; padding: 7px 8px; border-radius: 8px; cursor: pointer; }
.cp-item:hover, .cp-item.active { background: var(--accent-soft); }
.cp-item input { margin-top: 3px; }
.cp-item .t { font-size: 13px; font-weight: 600; line-height: 1.35; }
.cp-item .s { font-size: 11.5px; color: var(--text-3); }
.ai-out { max-height: 50vh; overflow-y: auto; white-space: pre-wrap; border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; }
@media (max-width: 1100px) { .writer-body { grid-template-columns: 0 1fr 1fr; } .writer-side { display: none; } }
.cite-suggest { position: fixed; z-index: 95; width: 520px; max-width: calc(100vw - 24px); background: var(--surface); border: 1px solid var(--border); border-radius: 10px; box-shadow: var(--shadow-lg); padding: 4px; }
.cs-item { display: flex; gap: 8px; align-items: baseline; padding: 6px 8px; border-radius: 7px; cursor: pointer; font-size: 12.5px; white-space: nowrap; overflow: hidden; }
.cs-item span:nth-child(2) { overflow: hidden; text-overflow: ellipsis; flex: 1; }
.cs-item.active, .cs-item:hover { background: var(--accent-soft); }
.cs-hint { font-size: 11px; color: var(--text-3); padding: 4px 8px 2px; border-top: 1px solid var(--border); margin-top: 2px; }

/* 위험한 확인 버튼 (confirmDialog의 danger: true → .btn.primary.danger-fill) */
.btn.primary.danger-fill { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn.primary.danger-fill:hover { background: #a61e1e; border-color: #a61e1e; }
.btn.primary.danger-fill:focus-visible { outline: 2px solid var(--danger); outline-offset: 2px; }
/* 어두운 테마의 --danger(#ff6b6b)는 흰 글자 대비가 낮아 더 진한 빨강을 씀 */
:root[data-theme="dark"] .btn.primary.danger-fill { background: #e03131; border-color: #e03131; }
:root[data-theme="dark"] .btn.primary.danger-fill:hover { background: #f03e3e; border-color: #f03e3e; }

/* ---------------- 논문 양식 (docs/design/doc-formats-ui.md) ---------------- */
/* 공통: 필수 점 · 라디오형 세그먼트 */
.req-dot { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--warn); margin-left: 4px; vertical-align: 2px; flex: none; }
.seg.seg-radio label { position: relative; display: inline-flex; cursor: pointer; margin: 0; }
.seg.seg-radio input { position: absolute; opacity: 0; width: 1px; height: 1px; margin: 0; pointer-events: none; }
.seg.seg-radio span { padding: 4px 12px; border-radius: 6px; font-size: 12.5px; color: var(--text-2); white-space: nowrap; }
.seg.seg-radio label:hover span { color: var(--text); }
.seg.seg-radio input:checked + span { background: var(--surface); color: var(--text); font-weight: 600; box-shadow: var(--shadow); }
.seg.seg-radio input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 1px; }
.seg.seg-radio input:disabled + span { opacity: .5; cursor: default; }

/* 원고 상단 막대: 양식 선택 · 표지 정보 버튼 */
.writer-bar .fmt-select { width: auto; max-width: 220px; }
.cover-btn { position: relative; }
.cover-btn[data-incomplete]::after {
  content: ""; position: absolute; top: -4px; right: -4px; width: 10px; height: 10px; border-radius: 50%;
  background: var(--warn); border: 2px solid var(--surface);
}
/* 내보내기 메뉴: popupMenu가 돌려준 .menu에 export-menu를 붙이면 아랫줄(sub)이 이름 밑에 한 줄로 */
.menu.export-menu { width: 300px; max-width: calc(100vw - 16px); }
.menu.export-menu button { flex-direction: column; align-items: flex-start; gap: 1px; }
.menu.export-menu button .sub { margin-left: 0; max-width: 100%; line-height: 1.4; word-break: keep-all; overflow-wrap: anywhere; }
@media (max-width: 760px) {
  .writer-bar { flex-wrap: wrap; row-gap: 6px; }
  .writer-bar .fmt-select { max-width: 150px; }
}

/* 표지 정보 대화상자 */
.modal.cover-modal { width: min(980px, 100%); }
.cover-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 20px; align-items: start; }
.cover-form { min-width: 0; }
.cover-ym { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.cover-ym .cover-year { width: 92px; }
.cover-ym select.input { width: auto; }
.cover-auto {
  display: flex; align-items: center; gap: 6px; flex-wrap: wrap; min-height: 34px; padding: 4px 10px; border-radius: 8px;
  background: var(--surface-2); font-size: 13px;
}
.cover-auto.is-warn { background: var(--warn-soft); color: var(--warn); }
.name-preview { color: var(--text-3); margin-left: 2px; letter-spacing: .02em; }
.cover-committee, .cover-include { border: 0; margin: 0 0 12px; padding: 0; min-width: 0; }
.cover-committee > legend, .cover-include > legend { font-size: 12px; font-weight: 600; color: var(--text-2); padding: 0; margin-bottom: 5px; }
.cover-members { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 0 12px; }
.cover-member { display: grid; grid-template-columns: 40px minmax(0, 1fr); align-items: center; gap: 8px; margin-bottom: 6px; }
.cover-role { font-size: 12.5px; font-weight: 600; color: var(--text-2); }
.cover-preview {
  position: sticky; top: 0; display: flex; flex-direction: column; gap: 8px; padding: 10px; border: 1px solid var(--border);
  border-radius: 12px; background: var(--surface-3);
}
.cover-preview-head { display: flex; align-items: center; justify-content: space-between; gap: 6px; flex-wrap: wrap; }
.cover-preview-title { font-size: 12px; font-weight: 700; color: var(--text-2); }
.cover-preview .seg button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
/* 종이는 미리보기(.doc)처럼 두 테마 모두 흰 종이 + 검은 글자 */
.cover-sheet {
  --ar: 210 / 297; aspect-ratio: var(--ar); display: flex; flex-direction: column; padding: 13% 9%; background: #fff; color: #1b1f27;
  box-shadow: var(--shadow); text-align: center; font-weight: 400; transition: opacity .15s;
  font-family: var(--cover-font, "HY신명조", "휴먼명조", "바탕", "Batang", "Noto Serif KR", serif);
}
.cover-sheet.is-bold { font-weight: 700; }
.cover-sheet.is-off { opacity: .35; }
.cover-sheet.is-overflow { outline: 2px solid #b35c00; outline-offset: 2px; }
.cover-line { margin: 0; font-size: calc(var(--pt, 14) * .8px); line-height: 1.25; word-break: keep-all; overflow-wrap: anywhere; }
.cover-line .ph { color: #a35300; background: #fff1e0; border-radius: 3px; padding: 0 2px; }
.cover-gap { flex: none; height: 8px; }
.cover-gap.lg { height: 16px; }
.cover-fill { flex: 1 1 auto; min-height: 12px; }
@media (max-width: 760px) {
  .cover-layout { grid-template-columns: 1fr; }
  .cover-preview { position: static; }
  .cover-sheet { max-width: 320px; width: 100%; margin: 0 auto; }
}
@media (max-width: 560px) {
  .cover-form .grid-2, .cover-form .grid-3 { grid-template-columns: 1fr; }
}

/* 양식 관리 대화상자 */
.modal.fmt-modal { width: min(1080px, 100%); height: min(820px, calc(100vh - 40px)); }
/* 좁은 화면: 가운데 정렬 grid(.modal-backdrop) 칸이 안쪽 min-content만큼 넓어지지 않도록 화면 폭으로 묶음 (B-2) */
.modal.fmt-modal, .modal.cover-modal { min-width: 0; max-width: calc(100vw - 40px); }
.modal.fmt-modal .modal-head h3, .modal.cover-modal .modal-head h3 { min-width: 0; overflow-wrap: anywhere; }
.modal.fmt-modal > .modal-body { flex: 1; min-height: 0; padding: 0; overflow: hidden; display: flex; }
.fmt-layout { flex: 1; min-width: 0; min-height: 0; display: grid; grid-template-columns: 280px minmax(0, 1fr); border-top: 1px solid var(--border); }
.fmt-side { display: flex; flex-direction: column; min-height: 0; background: var(--bg); border-right: 1px solid var(--border); }
.fmt-side-actions { display: flex; gap: 6px; flex-wrap: wrap; padding: 12px 12px 6px; }
.fmt-list { flex: 1; min-height: 0; overflow-y: auto; padding: 2px 8px 10px; }
.fmt-group-title {
  display: flex; align-items: center; justify-content: space-between; gap: 6px; padding: 10px 6px 4px;
  font-size: 11.5px; font-weight: 650; color: var(--text-3); letter-spacing: .02em;
}
.fmt-item {
  width: 100%; display: flex; flex-direction: column; gap: 1px; padding: 7px 9px; margin-bottom: 2px; border: 1px solid transparent;
  border-radius: 8px; background: none; color: var(--text); text-align: left; cursor: pointer;
}
.fmt-item:hover { background: var(--surface-2); }
.fmt-item[aria-current="true"] { background: var(--accent-soft); }
.fmt-item[aria-current="true"] .fmt-item-name { color: var(--accent-text); }
.fmt-item:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
.fmt-item:disabled { opacity: .55; cursor: default; }
.fmt-item.is-draft { border: 1px dashed var(--warn); }
.fmt-item-name { display: flex; align-items: flex-start; gap: 6px; font-size: 13px; font-weight: 600; line-height: 1.35; word-break: keep-all; overflow-wrap: anywhere; }
.fmt-item-name > span:first-child { flex: 1; min-width: 0; }
.fmt-item-name .chip { font-size: 10.5px; padding: 0 6px; flex: none; }
.fmt-item.is-dirty .fmt-item-name::after { content: ""; width: 7px; height: 7px; margin-top: 6px; border-radius: 50%; background: var(--warn); flex: none; }
.fmt-item-sub { font-size: 11.5px; color: var(--text-3); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fmt-empty { padding: 4px 8px 8px; font-size: 12px; line-height: 1.6; color: var(--text-3); }
.fmt-drop {
  margin: 0 12px 12px; padding: 10px 12px; border: 1.5px dashed var(--border-strong); border-radius: 10px;
  text-align: center; font-size: 12px; line-height: 1.7; color: var(--text-3); transition: background .12s, border-color .12s;
}
.fmt-drop .btn { margin: 2px 0; }
.fmt-drop.is-over { border-color: var(--accent); background: var(--accent-soft); color: var(--accent-text); }
.fmt-main { position: relative; min-width: 0; min-height: 0; overflow-y: auto; background: var(--surface); }
.fmt-head {
  position: sticky; top: 0; z-index: 3; display: flex; align-items: center; gap: 6px 8px; flex-wrap: wrap;
  padding: 12px 20px 10px; background: var(--surface); border-bottom: 1px solid var(--border);
}
.fmt-title { flex: 1; min-width: min(180px, 100%); margin: 0; font-size: 15px; font-weight: 700; line-height: 1.4; word-break: keep-all; }
.fmt-name-input { flex: 1; min-width: min(180px, 100%); font-weight: 600; }
.fmt-head-actions { display: flex; gap: 6px; flex-wrap: wrap; margin-left: auto; }
.fmt-nav { display: flex; gap: 4px; flex-wrap: wrap; width: 100%; padding-top: 4px; }
.fmt-nav button {
  padding: 2px 10px; border: 1px solid var(--border); border-radius: 999px; background: var(--surface); color: var(--text-2);
  font-size: 12px; cursor: pointer; white-space: nowrap;
}
.fmt-nav button:hover { background: var(--surface-2); color: var(--text); }
.fmt-nav button[aria-current="true"] { background: var(--accent-soft); border-color: transparent; color: var(--accent-text); font-weight: 600; }
.fmt-nav button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.fmt-content { padding: 14px 20px 28px; }
.fmt-lock { margin-bottom: 10px; }
.fmt-note {
  margin-bottom: 14px; padding: 10px 14px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-2);
  font-size: 12.5px; line-height: 1.65; color: var(--text-2);
}
.fmt-note b { color: var(--text); }
.fmt-note ul { margin: 4px 0 0; padding-left: 18px; }
.fmt-note li + li { margin-top: 2px; }
.fmt-import { display: flex; flex-direction: column; gap: 8px; margin-bottom: 14px; }
.fmt-import .chips { display: inline-flex; vertical-align: middle; }
.fmt-import-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.fmt-import-row select.input { width: auto; max-width: 100%; }
.fmt-warnings { display: block; }
.fmt-warnings ul { margin: 0; padding-left: 18px; }
.fmt-fields { border: 0; margin: 0; padding: 0; min-width: 0; }
.fmt-sec { min-width: 0; margin: 0; padding: 14px 0 4px; border: 0; border-top: 1px solid var(--border); scroll-margin-top: 120px; }
.fmt-sec:first-child { border-top: 0; padding-top: 2px; }
.fmt-sec > legend { float: left; width: 100%; padding: 0; }
.fmt-sec > legend + * { clear: both; }
.fmt-sec-title { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; font-size: 13.5px; font-weight: 700; color: var(--text); }
.fmt-sec-help { margin: 0 0 10px; font-size: 12px; line-height: 1.6; color: var(--text-3); }
.fmt-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 0 12px; }
.fmt-grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: 420px; }
.fmt-grid > .span-all { grid-column: 1 / -1; }
.fmt-field { min-width: 0; margin-bottom: 10px; }
.fmt-field > label { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.fmt-num, .fmt-len { display: flex; align-items: stretch; min-width: 0; }
.fmt-num > .input, .fmt-len > .input:first-child { flex: 1; width: 100%; min-width: 0; border-radius: 8px 0 0 8px; }
.fmt-num > .input:focus, .fmt-len > .input:focus { position: relative; z-index: 1; }
.fmt-unit {
  display: grid; place-items: center; height: 34px; padding: 0 9px; border: 1px solid var(--border-strong); border-left: 0;
  border-radius: 0 8px 8px 0; background: var(--surface-2); color: var(--text-3); font-size: 12px; white-space: nowrap;
}
.fmt-len > select.input { flex: none; width: auto; padding: 0 6px; border-left: 0; border-radius: 0 8px 8px 0; background: var(--surface-2); font-size: 12px; }
.fmt-checks { display: flex; align-items: center; gap: 6px 16px; flex-wrap: wrap; min-height: 34px; margin-bottom: 10px; }
.fmt-grid > .fmt-checks { align-self: end; }
.fmt-sub { margin-bottom: 10px; padding: 10px 12px 0; border: 1px solid var(--border); border-radius: 10px; }
.fmt-sub-title { margin-bottom: 8px; font-size: 12.5px; font-weight: 650; color: var(--text); }
.fmt-sub-title .muted { font-weight: 400; }
.fmt-help { margin: 0 0 12px; padding: 8px 12px; border-radius: 8px; background: var(--warn-soft); color: var(--text-2); font-size: 12px; line-height: 1.65; }
.fmt-origin { padding: 0 6px; border-radius: 5px; font-size: 10.5px; font-weight: 600; line-height: 1.6; }
.fmt-origin[data-origin="file"] { background: var(--success-soft); color: var(--success); }
.fmt-origin[data-origin="default"] { background: var(--surface-3); color: var(--text-3); }
.fmt-field.is-invalid .input { border-color: var(--danger); }
.fmt-field.is-invalid .input:focus { box-shadow: 0 0 0 3px var(--danger-soft); }
.fmt-err { font-size: 12px; color: var(--danger); }
/* 내 양식에서 조건 때문에 잠긴 칸(쪽 번호 끔 등)은 흐리게 */
.fmt-form:not(.is-readonly) :is(input, select):disabled { opacity: .5; cursor: default; }
/* 기본 양식(읽기 전용): 칸은 잠그되 값은 또렷하게 */
.fmt-form.is-readonly :is(input, select):disabled { opacity: 1; background: var(--surface-2); color: var(--text); -webkit-text-fill-color: var(--text); cursor: default; }
.fmt-form.is-readonly .check { cursor: default; }
.fmt-form.is-readonly input[type=checkbox]:disabled { opacity: .8; }
.fmt-loading { display: flex; align-items: center; justify-content: center; gap: 8px; padding: 40px 20px; color: var(--text-2); font-size: 13px; }
.fmt-foot-status { font-size: 12px; color: var(--text-3); }
.fmt-foot-status.is-dirty { color: var(--warn); font-weight: 600; }
@media (max-width: 760px) {
  .fmt-layout { grid-template-columns: minmax(0, 1fr); grid-template-rows: auto minmax(0, 1fr); }
  .fmt-side { max-height: 32vh; border-right: 0; border-bottom: 1px solid var(--border); }
  .fmt-head { padding: 10px 14px 8px; }
  .fmt-content { padding: 12px 14px 24px; }
}
@media (max-width: 560px) {
  .fmt-grid, .fmt-grid.cols-2 { grid-template-columns: 1fr; max-width: none; }
  .fmt-drop { display: none; }
}

/* 편집 화면 미리보기에 양식 반영 (명세 11.5) — .doc-formatted가 없으면 지금 모양 그대로 */
.writer-preview:has(> .doc.doc-formatted) { container-type: inline-size; }
.doc.doc-formatted {
  /* 종이 배율(px/mm): A4는 지금과 비슷한 폭, 칸이 좁으면 비율대로 줄임 */
  --_s: min(3.6px, 100cqw / var(--doc-paper-w, 210));
  --_pt: calc(var(--_s) * .3528);
  width: calc(var(--doc-paper-w, 210) * var(--_s)); max-width: none;
  padding: calc(var(--doc-pad-t, 25) * var(--_s)) calc(var(--doc-pad-r, 30) * var(--_s))
    calc(var(--doc-pad-b, 25) * var(--_s)) calc(var(--doc-pad-l, 30) * var(--_s));
  font-family: var(--doc-font, "Times New Roman", "바탕", "Batang", "Noto Serif KR", serif);
  font-size: calc(var(--doc-size, 11) * var(--_pt));
  line-height: var(--doc-lh, 1.6);
  text-align: var(--doc-align, left);
}
/* 본문 문단 위·아래 간격: 워드·한글처럼 앞 문단 아래 + 다음 문단 위가 더해지도록 padding 사용 */
.doc.doc-formatted p {
  margin: 0; text-indent: calc(var(--doc-indent, 0) * var(--_s));
  padding-top: calc(var(--doc-para-before, 0) * var(--_pt)); padding-bottom: calc(var(--doc-para-after, 0) * var(--_pt));
}
.doc.doc-formatted p.doc-bib { padding-top: 0; padding-bottom: 0; }
.doc.doc-formatted p.doc-li { text-align: left; }
.doc.doc-formatted .doc-title {
  margin: 0 0 1em; text-indent: 0; font-size: calc(var(--doc-title-size, 18) * var(--_pt));
  text-align: var(--doc-title-align, center); font-weight: var(--doc-title-weight, 700);
}
.doc.doc-formatted h2 {
  margin: 1.1em 0 .6em; text-indent: 0; font-size: calc(var(--doc-h1-size, 14) * var(--_pt));
  text-align: var(--doc-h1-align, left); font-weight: var(--doc-h1-weight, 700); font-style: var(--doc-h1-style, normal);
}
.doc.doc-formatted h3 {
  margin: 1em 0 .5em; text-indent: 0; font-size: calc(var(--doc-h2-size, 12) * var(--_pt));
  text-align: var(--doc-h2-align, left); font-weight: var(--doc-h2-weight, 700); font-style: var(--doc-h2-style, normal);
}
.doc.doc-formatted h4 {
  margin: .8em 0 .4em; text-indent: 0; font-size: calc(var(--doc-h3-size, 11) * var(--_pt));
  text-align: var(--doc-h3-align, left); font-weight: var(--doc-h3-weight, 700); font-style: var(--doc-h3-style, normal);
}
.doc.doc-formatted blockquote {
  margin: .4em 0 .4em calc(var(--doc-quote-indent, 10) * var(--_s)); padding: 0; color: inherit; text-indent: 0;
  font-size: calc(var(--doc-quote-size, 11) * var(--_pt)); line-height: var(--doc-quote-lh, var(--doc-lh, 1.6));
}
.doc.doc-formatted .doc-bib {
  padding-left: 0; text-indent: 0; font-size: calc(var(--doc-bib-size, 11) * var(--_pt));
  line-height: var(--doc-bib-lh, var(--doc-lh, 1.6));
}
.doc.doc-formatted .doc-bib.hanging {
  padding-left: calc(var(--doc-bib-hang, 10) * var(--_s)); text-indent: calc(var(--doc-bib-hang, 10) * var(--_s) * -1);
}
.doc.doc-formatted .doc-notes { font-size: calc(var(--doc-fn-size, 9) * var(--_pt)); line-height: 1.4; text-align: left; }
.doc.doc-formatted .fn-ref { font-size: .7em; }
.doc.doc-formatted pre { font-size: calc(9.5 * var(--_pt)); text-indent: 0; text-align: left; }
/* 논문 제목을 본문에 넣지 않는 양식 */
.doc.doc-formatted.doc-title-off .doc-title { color: #9aa1ad; }
.doc.doc-formatted.doc-title-off .doc-title::after {
  content: "표지에만 들어가요"; display: block; margin-top: 4px; color: #7a8293;
  font: 600 11px/1.5 var(--font); font-style: normal; letter-spacing: 0;
}
/* 새 쪽에서 시작하는 제목 위에 "쪽 나눔" 표시 (문서 첫 요소이거나 바로 앞이 이미 쪽 나눔이면 생략) */
.doc.doc-formatted.doc-pb-h1 h2:not(.doc-bib-h):not(:first-child, .doc-pb + *)::before,
.doc.doc-formatted.doc-pb-h2 h3:not(:first-child, .doc-pb + *)::before,
.doc.doc-formatted.doc-pb-h3 h4:not(:first-child, .doc-pb + *)::before,
.doc.doc-formatted.doc-pb-bib h2.doc-bib-h:not(:first-child, .doc-pb + *)::before {
  content: "쪽 나눔"; display: block; margin: 0 0 1.2em; padding-top: 2px; border-top: 1px dashed #cdd3dc; color: #7a8293;
  font: 400 11px/1.5 var(--font); font-style: normal; text-align: center; letter-spacing: 0;
}

/* ---------------- 1단계 클라우드 (docs/design/phase1-cloud-ui.md) ---------------- */
/* 공통: 알림 상자. 글자는 --text, 색(tone)은 왼쪽 테두리·아이콘에 */
.notice {
  display: flex; align-items: flex-start; gap: 8px; padding: 9px 12px; border-radius: 8px; border-left: 3px solid var(--border-strong);
  background: var(--surface-2); color: var(--text); font-size: 13px; line-height: 1.6; text-align: left; word-break: keep-all; overflow-wrap: anywhere;
}
.notice > svg.ico { margin-top: 3px; color: var(--text-2); }
.notice > div { flex: 1; min-width: 0; }
.notice b { font-weight: 650; }
.notice[data-tone="info"] { background: var(--accent-soft); border-left-color: var(--accent); }
.notice[data-tone="info"] > svg.ico { color: var(--accent-text); }
.notice[data-tone="warn"] { background: var(--warn-soft); border-left-color: var(--warn); }
.notice[data-tone="warn"] > svg.ico { color: var(--warn); }
.notice[data-tone="danger"] { background: var(--danger-soft); border-left-color: var(--danger); }
.notice[data-tone="danger"] > svg.ico { color: var(--danger); }
/* 비활성 세그먼트 버튼 (설정 창 Claude CLI) · 꼭 읽어야 하는 안내는 .hint.is-strong(--text-2)로 더 진하게 */
.seg button:disabled { opacity: .5; cursor: not-allowed; }
.field .hint.is-strong { color: var(--text-2); }
/* 사이드바 줄 메뉴(⋯): 키보드로 줄에 닿거나 터치 화면이면 보이게 (컬렉션·태그·폴더 공통) */
.tree-row:focus-within .row-menu { visibility: visible; }
@media (hover: none) { .tree-row .row-menu { visibility: visible; } }

/* D1·D2·D5·D6 로그인 전 전체 화면 — body[data-auth]가 없으면 지금 화면 그대로 */
.gate { display: none; }
body[data-auth="pending"] > #app, body[data-auth="out"] > #app { display: none; }
body[data-auth="pending"] > .gate, body[data-auth="out"] > .gate {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 16px;
  min-height: 100vh; min-height: 100dvh; padding: 32px 16px;
  background: radial-gradient(900px 420px at 50% -8%, rgba(var(--accent-rgb), .12), transparent 72%), var(--bg);
}
.gate-card {
  width: min(400px, 100%); padding: 28px 28px 24px; border: 1px solid var(--border); border-radius: 16px;
  background: var(--surface); box-shadow: var(--shadow); text-align: center;
}
.gate-brand { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.gate-mark { width: 52px; height: 52px; flex: none; }
.gate-mark .gm-bg { fill: var(--accent); }
.gate-mark .gm-line { stroke: var(--accent); }
.gate-name { font-size: 22px; font-weight: 750; letter-spacing: -.01em; }
.gate-pane { display: none; flex-direction: column; align-items: stretch; gap: 14px; margin-top: 18px; }
.gate[data-gate="boot"] .gate-pane[data-pane="boot"],
.gate[data-gate="login"] .gate-pane[data-pane="login"],
.gate[data-gate="denied"] .gate-pane[data-pane="denied"],
.gate[data-gate="down"] .gate-pane[data-pane="down"] { display: flex; }
.gate-title { margin: 0; font-size: 18px; font-weight: 700; line-height: 1.4; word-break: keep-all; }
.gate-title:focus { outline: none; }
.gate-text { margin: 0; font-size: 14px; line-height: 1.65; color: var(--text-2); word-break: keep-all; overflow-wrap: anywhere; }
.gate-icon {
  width: 46px; height: 46px; margin: 0 auto; border-radius: 50%; display: grid; place-items: center;
  background: var(--surface-2); color: var(--text-2);
}
.gate-icon svg.ico { width: 22px; height: 22px; }
.gate-icon[data-tone="warn"] { background: var(--warn-soft); color: var(--warn); }
.gate-icon[data-tone="danger"] { background: var(--danger-soft); color: var(--danger); }
.gate-actions { display: flex; flex-direction: column; gap: 8px; }
.gate-actions > .btn { width: 100%; height: 40px; font-size: 14px; }
.gate-email {
  align-self: center; max-width: 100%; padding: 3px 12px; border-radius: 999px; background: var(--surface-2);
  color: var(--text); font-size: 13px; overflow-wrap: anywhere;
}
.gate-detail {
  margin: 0; padding: 6px 10px; border-radius: 6px; background: var(--surface-2); color: var(--text-2);
  font-family: var(--mono); font-size: 11.5px; text-align: left; max-height: 84px; overflow: auto; overflow-wrap: anywhere;
}
.gate-boot { display: flex; align-items: center; justify-content: center; gap: 10px; color: var(--text-2); font-size: 14px; }
.gate-boot .spinner { width: 20px; height: 20px; }
.gate-wake { display: flex; flex-direction: column; gap: 10px; }
.gate-foot { max-width: 400px; margin: 0; font-size: 12.5px; line-height: 1.6; color: var(--text-2); text-align: center; word-break: keep-all; }
/* 구글 버튼: Google 상표 지침의 밝은/어두운 색 그대로 */
.btn-google {
  display: flex; align-items: center; justify-content: center; gap: 10px; width: 100%; height: 44px; padding: 0 16px;
  border: 1px solid #747775; border-radius: 10px; background: #fff; color: #1f1f1f; cursor: pointer;
  font-size: 14.5px; font-weight: 600; transition: background .12s, box-shadow .12s;
}
.btn-google:hover { background: #f6f8fb; box-shadow: var(--shadow); }
.btn-google:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn-google:disabled { cursor: default; box-shadow: none; }
.btn-google-logo { width: 18px; height: 18px; flex: none; }
.btn-google .spinner { display: none; }
.btn-google.is-loading .spinner { display: inline-block; }
.btn-google.is-loading .btn-google-logo { display: none; }
:root[data-theme="dark"] .btn-google { background: #131314; border-color: #8e918f; color: #e3e3e3; }
:root[data-theme="dark"] .btn-google:hover { background: #1f2023; }
@media (max-width: 440px) { .gate-card { padding: 24px 20px 20px; } }

/* D5·D6 쓰는 도중의 알림 띠 (서버 깨우는 중 · 서비스 멈춤 · 인터넷 끊김) */
.app-banner {
  position: fixed; top: 12px; left: 50%; transform: translateX(-50%); z-index: 190;
  display: flex; align-items: center; gap: 10px; width: max-content; max-width: min(640px, calc(100vw - 32px));
  padding: 8px 8px 8px 14px; border: 1px solid var(--border); border-left: 4px solid var(--accent); border-radius: 12px;
  background: var(--surface); color: var(--text); box-shadow: var(--shadow-lg); font-size: 13px; line-height: 1.5;
}
.app-banner[data-kind="wake"] { padding-right: 14px; }
.app-banner[data-kind="paused"], .app-banner[data-kind="offline"] { border-left-color: var(--warn); }
.app-banner > svg.ico { color: var(--warn); }
.app-banner-text { flex: 1; min-width: 0; word-break: keep-all; overflow-wrap: anywhere; }
.app-banner .btn { flex: none; }
@media (max-width: 560px) {
  .app-banner { left: 16px; right: 16px; width: auto; max-width: none; transform: none; flex-wrap: wrap; }
}

/* D3 계정 메뉴 */
.avatar {
  width: 24px; height: 24px; flex: none; display: inline-grid; place-items: center; overflow: hidden; border-radius: 50%;
  background: var(--accent-soft); color: var(--accent-text); font-size: 11.5px; font-weight: 700; line-height: 1; object-fit: cover;
}
img.avatar { background: var(--surface-3); }
.avatar.lg { width: 36px; height: 36px; font-size: 15px; }
.sidebar-foot .account-wrap { flex: 1; min-width: 0; }
.account-btn {
  width: 100%; height: 36px; display: flex; align-items: center; gap: 8px; padding: 0 6px; border: 0; border-radius: 8px;
  background: none; color: var(--text); cursor: pointer; text-align: left; font-size: 13px; font-weight: 600;
}
.account-btn:hover, .account-btn[aria-expanded="true"] { background: var(--surface-2); }
.account-btn:focus-visible, .account-mini:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.account-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.account-caret { color: var(--text-3); }
.menu.account-menu { width: 260px; max-width: calc(100vw - 16px); }
.sidebar-foot .menu.account-menu { width: 214px; } /* 사이드바(스크롤 영역) 밖으로 잘리지 않는 폭 */
.account-menu-head { display: flex; align-items: center; gap: 10px; padding: 8px 10px 6px; min-width: 0; }
.account-menu-head > div { flex: 1; min-width: 0; }
.account-menu-name { font-size: 13.5px; font-weight: 650; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.account-menu-email { font-size: 12px; color: var(--text-2); overflow-wrap: anywhere; }
/* 좁은 화면(사이드바가 숨는 900px 이하)에서만 보이는 오른쪽 아래 계정 버튼 */
.account-mini-wrap { display: none; }
@media (max-width: 900px) {
  .account-mini-wrap { display: block; position: fixed; right: 16px; bottom: 16px; z-index: 50; }
  #app.reading ~ .account-mini-wrap,
  body[data-auth="pending"] > .account-mini-wrap, body[data-auth="out"] > .account-mini-wrap { display: none; }
}
.account-mini {
  width: 44px; height: 44px; padding: 0; display: grid; place-items: center; border: 1px solid var(--border); border-radius: 50%;
  background: var(--surface); box-shadow: var(--shadow); cursor: pointer;
}
.account-mini .avatar { width: 32px; height: 32px; font-size: 13px; }

/* D14 저장 공간 */
.usage-bar { position: relative; height: 6px; overflow: hidden; border-radius: 99px; background: var(--surface-3); }
.usage-bar.lg { height: 8px; }
.usage-bar > span { position: absolute; top: 0; bottom: 0; left: 0; min-width: 3px; border-radius: inherit; background: var(--accent); transition: width .4s; }
:root[data-theme="dark"] [data-level="ok"] .usage-bar > span { background: var(--accent-text); } /* 어두운 배경에서 막대 대비 3:1 이상 */
[data-level="warn"] .usage-bar > span { background: var(--warn); }
[data-level="full"] .usage-bar > span { background: var(--danger); }
.storage-meter { margin-top: auto; padding: 12px 8px 8px; font-size: 12px; color: var(--text-2); }
.storage-meter:not(.hidden) + .sidebar-foot { margin-top: 0; }
.storage-meter-head { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; margin-bottom: 5px; }
.storage-meter-head > span:first-child { font-weight: 600; }
.storage-meter-num, .usage-num { font-variant-numeric: tabular-nums; white-space: nowrap; }
.storage-meter-msg { margin-top: 5px; font-weight: 600; }
.storage-meter[data-level="warn"] .storage-meter-msg { color: var(--warn); }
.storage-meter[data-level="full"] .storage-meter-msg { color: var(--danger); }
.storage-meter[data-level="ok"] .storage-meter-msg { display: none; }
.usage-block { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; }
.usage-head { display: flex; justify-content: space-between; align-items: baseline; gap: 4px 10px; flex-wrap: wrap; font-size: 13px; }
.usage-head > span:first-child { font-size: 12px; font-weight: 600; color: var(--text-2); }
.usage-block .hint { font-size: 12px; line-height: 1.6; color: var(--text-2); }

/* D7 설정 창 "계정" 구역 */
.account-card {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; padding: 12px 14px;
  border: 1px solid var(--border); border-radius: 10px;
}
.account-card-id { flex: 1; min-width: 160px; }
.account-card-name { font-weight: 650; }
.account-card-email { font-size: 12.5px; color: var(--text-2); overflow-wrap: anywhere; }

/* D8 폴더 트리 — 컬렉션과 구별: 폴더 아이콘(대표색) · 안내선 · 따로 있는 펼침 버튼 */
.nav-sub { margin-left: 4px; font-size: 11px; font-weight: 450; color: var(--text-2); letter-spacing: 0; }
.tree-toggle {
  width: 18px; height: 26px; flex: none; display: grid; place-items: center; padding: 0; border: 0; border-radius: 5px;
  background: none; color: var(--text-3); cursor: pointer;
}
.tree-toggle:hover { background: var(--surface-2); color: var(--text); }
.tree-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: -1px; }
.tree-toggle svg.ico { width: 12px; height: 12px; transition: transform .15s; }
.tree-toggle[aria-expanded="true"] svg.ico { transform: rotate(90deg); }
.tree-toggle-spacer { width: 18px; flex: none; }
.folder-row .nav-item { padding-left: 4px; }
.nav-item svg.folder-ico, .folder-line svg.folder-ico, .folder-opt svg.folder-ico { color: var(--accent-text); opacity: 1; }
.folder-tree .tree-children { margin-left: 9px; padding-left: 8px; border-left: 1px solid var(--border); }
.nav-item:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }

/* D9 폴더 고르기 대화상자 · 상세 패널 폴더 줄 */
/* 좁은 화면: 긴 폴더 이름(말줄임) 때문에 창이 화면보다 넓어지지 않게 (.fmt-modal과 같은 처리) */
.modal.folder-modal { min-width: 0; max-width: calc(100vw - 40px); }
.folder-pick-list {
  max-height: min(50vh, 420px); overflow-y: auto; padding: 4px; border: 1px solid var(--border); border-radius: 10px;
}
.folder-opt {
  display: flex; align-items: center; gap: 8px; min-width: 0; padding: 7px 10px 7px calc(10px + var(--depth, 0) * 18px);
  border-radius: 7px; cursor: pointer; font-size: 13.5px;
}
.folder-opt:hover { background: var(--surface-2); }
.folder-opt input { flex: none; margin: 0; }
.folder-opt:has(input:checked) { background: var(--accent-soft); color: var(--accent-text); font-weight: 600; }
.folder-opt:has(input:focus-visible) { outline: 2px solid var(--accent); outline-offset: -2px; }
.folder-opt.is-disabled { cursor: default; opacity: .5; }
.folder-opt.is-disabled:hover { background: none; }
.folder-opt-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.folder-opt .chip { flex: none; font-weight: 500; }
.folder-pick-empty { padding: 8px 10px 4px; font-size: 12.5px; color: var(--text-2); }
.folder-line { display: flex; align-items: center; gap: 8px; min-width: 0; font-size: 13px; }
.folder-path { flex: 1; min-width: 0; overflow-wrap: anywhere; }
.folder-path .sep { margin: 0 4px; color: var(--text-3); }
.folder-path.is-none { color: var(--text-2); }

/* D10 업로드 진행률 */
.upload-list { margin-top: 6px; }
.upload-item {
  display: grid; grid-template-columns: 20px minmax(0, 1fr) auto; gap: 2px 10px; align-items: start;
  padding: 10px 0; border-bottom: 1px solid var(--border); font-size: 13px;
}
.upload-item:last-child { border-bottom: 0; }
.upload-st { width: 20px; height: 20px; display: grid; place-items: center; margin-top: 1px; color: var(--text-2); font-size: 14px; line-height: 1; }
.upload-st .spinner { width: 14px; height: 14px; }
.upload-item[data-state="done"] .upload-st { color: var(--success); }
.upload-item[data-state="error"] .upload-st { color: var(--danger); }
.upload-main { min-width: 0; }
.upload-name { display: flex; align-items: baseline; gap: 8px; min-width: 0; }
.upload-file { flex: 1; min-width: 0; font-weight: 600; overflow-wrap: anywhere; }
.upload-size { flex: none; font-size: 12px; color: var(--text-2); font-variant-numeric: tabular-nums; }
.upload-item .progress { margin: 6px 0 4px; }
.upload-item:not([data-state="uploading"]):not([data-state="processing"]) .progress { display: none; }
.upload-msg { font-size: 12px; color: var(--text-2); overflow-wrap: anywhere; }
.upload-item[data-state="error"] .upload-msg { color: var(--danger); }
.upload-warn { font-size: 12px; color: var(--warn); }
.upload-item > .btn { align-self: center; }
.upload-foot-note { font-size: 12px; color: var(--text-2); }
.upload-blocked { display: flex; flex-direction: column; gap: 12px; }

/* D11 요약 진행 안내 */
.ai-cta .notice { margin: 14px 0 8px; }