:root {
  --ground: #F4F6F8;
  --card: #FFFFFF;
  --ink: #1B1F24;
  --ink-2: #3D4652;
  --muted: #5A6472;
  --line: #DCE1E7;
  --accent: #1D4E89;
  --accent-ink: #163C6A;
  --accent-soft: #EEF3FA;
  --mark: #FFF1B8;
  --serif: "Source Serif 4", Georgia, serif;
  --sans: "Source Sans 3", system-ui, sans-serif;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--ground); color: var(--ink); font: 17px/1.5 var(--sans); }
a { color: var(--accent); }
a:hover { color: var(--accent-ink); }
button, input { font: inherit; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
main { max-width: 1040px; margin: 0 auto; padding: 20px 16px 64px; outline: none; }
.loading, .empty { color: var(--muted); padding: 24px 0; }

/* top bar */
.topbar { background: var(--card); border-bottom: 1px solid var(--line); }
.topbar-inner { max-width: 1040px; margin: 0 auto; padding: 12px 16px; display: flex; flex-wrap: wrap; align-items: center; gap: 10px 20px; }
.brand { font: 700 25px/1.2 var(--serif); color: var(--ink); text-decoration: none; letter-spacing: -0.01em; }
.nav { display: flex; gap: 4px; flex: 1 1 auto; }
.nav a { color: var(--ink-2); text-decoration: none; padding: 8px 12px; border-radius: 8px; min-height: 44px; display: inline-flex; align-items: center; }
.nav a[aria-current="page"] { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.account { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.who { color: var(--muted); }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 0 22px; border-radius: 10px; border: none; background: var(--accent); color: #fff; font-weight: 700; font-size: 18px; cursor: pointer; text-decoration: none; }
.btn:hover { background: var(--accent-ink); color: #fff; }
.btn.small { min-height: 44px; padding: 0 16px; font-size: 16px; }
.btn.ghost { background: var(--card); color: var(--ink); border: 1px solid #B9C2CD; font-weight: 600; }
.btn.ghost:hover { background: var(--ground); color: var(--ink); }

/* welcome */
.welcome { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: clamp(24px, 5vw, 56px); max-width: 640px; margin: 24px auto; text-align: center; }
.welcome h1 { font: 700 clamp(30px, 5vw, 42px)/1.15 var(--serif); margin: 0 0 10px; }
.welcome p { color: var(--ink-2); margin: 0 0 24px; }

/* archive */
.search { position: sticky; top: 0; z-index: 2; background: var(--ground); padding: 8px 0 12px; }
.search label { display: block; font-weight: 600; margin-bottom: 6px; }
.search input { width: 100%; min-height: 52px; padding: 10px 14px; font-size: 18px; border: 1px solid #B9C2CD; border-radius: 10px; background: var(--card); }
.search .count { color: var(--muted); font-size: 15px; margin-top: 6px; }
.year { background: var(--card); border: 1px solid var(--line); border-radius: 12px; margin: 0 0 12px; }
.year > summary { cursor: pointer; padding: 14px 18px; font: 700 21px/1.3 var(--serif); list-style: none; display: flex; justify-content: space-between; align-items: baseline; min-height: 48px; }
.year > summary::-webkit-details-marker { display: none; }
.year > summary .n { font: 400 15px var(--sans); color: var(--muted); }
.year[open] > summary { border-bottom: 1px solid var(--line); }
.list { list-style: none; margin: 0; padding: 4px 0; }
.list li a { display: flex; gap: 14px; align-items: baseline; padding: 10px 18px; text-decoration: none; color: var(--ink); min-height: 44px; }
.list li a:hover { background: var(--accent-soft); }
.list .d { flex: 0 0 auto; width: 7.5em; color: var(--muted); font-size: 15px; font-variant-numeric: tabular-nums; }
.list .t { font: 600 18px/1.35 var(--serif); }
.results { background: var(--card); border: 1px solid var(--line); border-radius: 12px; }
.results li a { flex-wrap: wrap; }
.results .snip { flex: 1 0 100%; color: var(--ink-2); font-size: 15px; margin-left: calc(7.5em + 14px); }
mark { background: var(--mark); color: inherit; border-radius: 2px; padding: 0 1px; }

/* column */
.column { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 28px clamp(16px, 5vw, 56px) 40px; max-width: 820px; margin: 0 auto; }
.crumbs { margin: 0 auto 12px; max-width: 820px; }
.column h1 { font: 700 clamp(28px, 4vw, 38px)/1.2 var(--serif); margin: 0 0 6px; }
.byline { color: var(--muted); margin: 0 0 24px; font-size: 16px; }
.column figure { margin: 0 0 26px; }
.column figure img { display: block; width: 100%; max-height: 520px; object-fit: contain; background: #F1F3F5; border-radius: 6px; }
.column figcaption { margin-top: 8px; font-size: 14px; color: var(--muted); }
.text { font: 19px/1.65 var(--serif); }
.text p { margin: 0 0 18px; }
.links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--line); }
.pager { display: flex; justify-content: space-between; gap: 12px; max-width: 820px; margin: 16px auto 0; }
.pager a { flex: 1 1 0; background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 12px 16px; text-decoration: none; color: var(--ink); min-height: 48px; }
.pager a:hover { border-color: var(--accent); }
.pager .lbl { display: block; font-size: 14px; color: var(--muted); }
.pager .next { text-align: right; }

/* image check */
.tool p { color: var(--ink-2); }
.search-row { display: flex; gap: 8px; margin: 16px 0; }
.search-row input { flex: 1 1 auto; min-width: 0; min-height: 52px; padding: 10px 14px; font-size: 18px; border: 1px solid #B9C2CD; border-radius: 10px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.status { padding: 12px 16px; border-radius: 10px; margin: 0 0 16px; }
.status.good { background: #E3F3E9; color: #13502B; }
.status.warn { background: #FFF4E0; color: #6B4300; }
.pick { margin: 0 0 12px; }
.pick img { display: block; width: 100%; max-height: 460px; object-fit: contain; background: #F1F3F5; border-radius: 8px; }
.pick figcaption { margin-top: 8px; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; }
.hint { font-size: 15px; color: var(--muted); }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px; }
.opt { display: flex; flex-direction: column; gap: 6px; padding: 8px; background: var(--card); border: 2px solid var(--line); border-radius: 10px; cursor: pointer; text-align: left; font-size: 14px; color: var(--ink-2); }
.opt:hover { border-color: var(--accent); }
.opt img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 6px; background: #EEF1F4; }

/* weekly column: list and upload */
.sec { font: 700 20px/1.3 var(--serif); margin: 24px 0 10px; }
.chip { flex: 0 0 auto; margin-left: auto; font: 600 13px var(--sans); padding: 2px 10px; border-radius: 999px; background: #EEF2F7; color: #33415C; }
.chip.published { background: #E3F3E9; color: #13502B; }
.chip.publishing { background: #FFF4E0; color: #6B4300; }
.upload p { color: var(--ink-2); }
.drop { display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 28px 16px; border: 2px dashed #B9C2CD; border-radius: 12px; cursor: pointer; text-align: center; margin: 12px 0; }
.drop.over, .drop:hover { border-color: var(--accent); background: var(--accent-soft); }
.drop input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.drop strong { font-size: 19px; color: var(--accent); }
.drop span { color: var(--muted); }
.paste summary { cursor: pointer; color: var(--accent); font-weight: 600; min-height: 44px; display: flex; align-items: center; }
.paste textarea, .preview textarea, .preview input, .side input { width: 100%; font: inherit; font-size: 17px; padding: 10px 12px; border: 1px solid #B9C2CD; border-radius: 8px; margin: 6px 0 10px; }

/* weekly column: one draft */
.steps { list-style: none; display: flex; flex-wrap: wrap; gap: 8px 24px; margin: 0 0 16px; padding: 14px 16px; background: var(--card); border: 1px solid var(--line); border-radius: 12px; }
.steps li { display: flex; align-items: center; gap: 8px; color: var(--muted); }
.steps .dot { width: 30px; height: 30px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; background: #E3E7EC; color: #4A5462; font-weight: 700; }
.steps li.ok { color: var(--ink); } .steps li.ok .dot { background: #1E7A46; color: #fff; }
.steps li.cur { color: var(--ink); font-weight: 700; } .steps li.cur .dot { background: var(--accent); color: #fff; }
.draft { display: flex; flex-wrap: wrap; gap: 20px; align-items: flex-start; }
.preview { flex: 999 1 540px; min-width: 0; padding: 0; overflow: hidden; }
.preview .bar { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 10px; padding: 12px 18px; border-bottom: 1px solid var(--line); background: #FAFBFC; }
.preview .bar h2 { font: 600 16px var(--sans); color: var(--muted); margin: 0; }
.preview .column { border: none; border-radius: 0; margin: 0; max-width: none; }
.preview > label, .preview > input, .preview > textarea, .preview > .btn { margin-left: 18px; margin-right: 18px; width: calc(100% - 36px); }
.preview > .btn { width: auto; margin-bottom: 18px; }
.noimg { height: 180px; border: 2px dashed #C3CBD5; border-radius: 8px; display: flex; align-items: center; justify-content: center; color: var(--muted); margin-bottom: 24px; text-align: center; padding: 16px; }
.side { flex: 1 1 400px; min-width: 0; display: flex; flex-direction: column; gap: 16px; }
.side .card { padding: 18px; }
.side h2 { font: 700 20px/1.3 var(--serif); margin: 0 0 10px; }
.side h3 { font: 600 16px var(--sans); margin: 14px 0 6px; }
.grid2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin: 10px 0; }
.opt.pickable { position: relative; }
.opt.pickable.chosen { border: 3px solid var(--accent); background: var(--accent-soft); }
.opt[disabled] { cursor: default; }
.thumbwrap { position: relative; display: block; }
.thumbwrap img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; border-radius: 6px; background: #EEF1F4; display: block; }
.badge { position: absolute; top: 6px; left: 6px; min-width: 26px; height: 26px; border-radius: 13px; background: #3D4652; color: #fff; font-weight: 700; display: flex; align-items: center; justify-content: center; }
.chosen .badge { background: var(--accent); }
.opt .why { color: var(--ink-2); font-size: 14px; line-height: 1.35; }
.opt .lic { align-self: flex-start; font-size: 12px; font-weight: 600; background: #EEF2F7; color: #33415C; border-radius: 6px; padding: 1px 7px; }
.opt .act { font-weight: 700; color: #3D4652; } .chosen .act { color: var(--accent); }
.sug { border: 1px solid var(--line); border-radius: 10px; padding: 12px; margin: 10px 0; }
.sug.accepted { border-color: #9CCFB0; } .sug.rejected { opacity: .75; }
.sug .k { font-size: 13px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .03em; }
.sug .diff { font: 17px/1.5 var(--serif); margin: 4px 0; }
.sug del { background: #FBE4E1; color: #8A1C12; }
.sug ins { background: #DDF2E3; color: #13502B; text-decoration: none; }
.sug .why { font-size: 15px; color: var(--muted); }
.checks li, .titles li, .rel li { margin: 6px 0; }
.checks q { font-style: italic; }
.btn.good { background: #1E7A46; } .btn.good:hover { background: #13502B; }
.btn[disabled] { opacity: .5; cursor: default; }
.linkbtn { background: none; border: none; color: var(--accent); text-decoration: underline; cursor: pointer; font: inherit; font-size: 15px; padding: 8px 4px; min-height: 44px; }
.linkbtn.danger { color: #8A1C12; }
.confirm { border: 2px solid var(--accent); margin-bottom: 16px; }
.confirm h2 { font: 700 21px var(--serif); margin: 0 0 8px; }

/* chat */
.msgs { display: flex; flex-direction: column; gap: 10px; margin: 8px 0; }
.msg { max-width: 92%; }
.msg.user { align-self: flex-end; }
.msg .from { font-size: 13px; color: var(--muted); margin: 0 4px 2px; }
.msg.user .from { text-align: right; }
.msg .bubble { padding: 10px 14px; border-radius: 12px; background: #F1F3F6; }
.msg.user .bubble { background: var(--accent); color: #fff; }
.msg.err .bubble { background: #FFF4E0; color: #6B4300; }
.msg .bubble p { margin: 0 0 8px; } .msg .bubble p:last-child { margin: 0; }
.chat-row { display: flex; gap: 8px; align-items: flex-end; margin-top: 8px; }
.chat-row textarea { flex: 1 1 auto; min-width: 0; font: inherit; font-size: 17px; padding: 10px 12px; border: 1px solid #B9C2CD; border-radius: 8px; resize: vertical; }

/* misc */
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 24px; }
.card h1 { font: 700 28px/1.2 var(--serif); margin: 0 0 8px; }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 20px); background: var(--ink); color: #fff; padding: 12px 18px; border-radius: 10px; opacity: 0; pointer-events: none; transition: .2s; max-width: calc(100% - 32px); }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 560px) {
  .list .d { width: 6.2em; font-size: 14px; }
  .results .snip { margin-left: 0; }
  .topbar-inner { gap: 6px 12px; }
  .who { display: none; }
}