/* Same look as the BUS 714 interview tool, so the team recognises it. */
:root {
  --bg: #f3f5f4;
  --surface: #ffffff;
  --text: #1c2a2e;
  --muted: #5d6c70;
  --line: #d9e0de;
  --accent: #1f6b5c;
  --doing: #c0632b;
  --doing-soft: rgba(192, 99, 43, 0.1);
  --ok: #2d7a3e;
  --ok-soft: rgba(45, 122, 62, 0.1);
  --error: #a3341f;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121a1c;
    --surface: #1a2427;
    --text: #e4ecea;
    --muted: #93a4a6;
    --line: #2c3a3e;
    --accent: #7cc7b4;
    --doing: #f0a46f;
    --doing-soft: rgba(240, 164, 111, 0.12);
    --ok: #7fd18f;
    --ok-soft: rgba(127, 209, 143, 0.12);
    --error: #f39a82;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 "IBM Plex Sans", system-ui, sans-serif;
}
.wrap { max-width: 860px; margin: 0 auto; padding: 40px 16px 64px; }
h1, h2, h3 { font-family: "Young Serif", Georgia, serif; font-weight: 400; margin: 0; }
h1 { font-size: clamp(1.7rem, 6vw, 2.4rem); line-height: 1.15; margin-bottom: 20px; }
h2 { font-size: 1.25rem; }
h3 { font-size: 1.1rem; }
.eyebrow, .mono, label, .tabs button, .due, .tag, .ver, .status-control button, .when {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
}
.eyebrow { font-size: 0.78rem; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); margin: 0 0 8px; }
.muted { color: var(--muted); }
.small { font-size: 0.8rem; }
.block { display: block; }
.intro { margin: 0 0 20px; max-width: 64ch; }
.hint { font-size: 0.85rem; color: var(--muted); margin: 6px 0 0; }
.hint:empty { display: none; }
.error { color: var(--error); font-size: 0.9rem; margin: 8px 0 0; }
.error:empty { display: none; }
.warn { font-size: 0.88rem; color: var(--doing); margin: 12px 0 0; }
.empty { color: var(--muted); }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 20px;
}
.narrow { max-width: 420px; }

label { display: block; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); margin: 0 0 6px; }
input, select, textarea {
  width: 100%;
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 9px 11px;
}
input:focus, select:focus, textarea:focus, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
button { font: inherit; cursor: pointer; }
button:disabled { opacity: 0.55; cursor: default; }
button.primary {
  margin-top: 14px;
  background: var(--accent);
  color: var(--bg);
  border: 0;
  border-radius: 6px;
  padding: 9px 18px;
  font-weight: 600;
}
button.secondary {
  background: none; color: var(--text); border: 1px solid var(--line); border-radius: 6px; padding: 8px 14px;
}
button.small-btn { padding: 6px 12px; font-size: 0.88rem; }
button.link { background: none; border: 0; padding: 0; color: var(--accent); text-decoration: underline; }
button.link.danger { color: var(--muted); }
button.link.danger.confirm { color: var(--error); font-weight: 600; }
.row-between { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; flex-wrap: wrap; }

/* Tabs */
.tabs { display: flex; border-bottom: 1px solid var(--line); margin-bottom: 20px; gap: 4px; overflow-x: auto; }
.tabs button {
  background: none; border: 0; border-bottom: 2px solid transparent; color: var(--muted); white-space: nowrap;
  padding: 8px 12px; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: -1px;
}
.tabs button[aria-selected="true"] { color: var(--accent); border-bottom-color: var(--accent); font-weight: 500; }

/* Overview */
.overview-top { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr); gap: 20px; margin-bottom: 20px; }
.overview-top .card { margin-bottom: 0; }
@media (max-width: 640px) { .overview-top { grid-template-columns: 1fr; } }
.countdown { display: flex; flex-direction: column; gap: 2px; }
.countdown .big { font-family: "Young Serif", Georgia, serif; font-size: 3.4rem; line-height: 1; color: var(--accent); }
.bar { display: flex; height: 10px; background: var(--line); border-radius: 5px; overflow: hidden; margin: 14px 0 8px; }
.bar span { display: block; height: 100%; transition: width 0.4s; }
.fill-done { background: var(--ok); }
.fill-doing { background: var(--doing); }

.timeline { list-style: none; margin: 14px 0 0; padding: 0; }
.timeline li { display: grid; grid-template-columns: 110px 1fr; gap: 12px; padding: 10px 0; border-top: 1px solid var(--line); }
.timeline li:first-child { border-top: 0; }
.timeline .when { font-size: 0.8rem; color: var(--muted); padding-top: 2px; }
.timeline li.past { opacity: 0.5; }
.timeline li.next { background: var(--doing-soft); margin: 0 -12px; padding: 10px 12px; border-radius: 6px; }
.timeline li.next .when { color: var(--doing); }
.tag { display: inline-block; margin-left: 8px; font-size: 0.72rem; color: var(--doing); text-transform: uppercase; letter-spacing: 0.04em; }

.progress-scroll { overflow-x: auto; margin-top: 12px; }
.progress { border-collapse: collapse; width: 100%; font-size: 0.88rem; }
.progress th, .progress td { padding: 8px; text-align: center; border-top: 1px solid var(--line); vertical-align: top; }
.progress th { font-family: "IBM Plex Mono", monospace; font-weight: 400; color: var(--muted); font-size: 0.72rem; text-transform: uppercase; }
.progress td:first-child, .progress th:first-child, .progress .direction, .progress td.muted, .progress .sections { text-align: left; }
.progress .name { font-weight: 600; }
.progress .direction { max-width: 220px; }
.progress .mark { font-size: 1.1rem; white-space: nowrap; }
.progress .fcount { font-size: 0.7rem; color: var(--muted); font-family: "IBM Plex Mono", monospace; }
.status-todo { color: var(--muted); }
.status-doing { color: var(--doing); }
.status-done { color: var(--ok); }
.sec-chip { display: inline-block; font-family: "IBM Plex Mono", monospace; font-size: 0.75rem; border: 1px solid currentColor; border-radius: 4px; padding: 1px 6px; margin: 0 4px 4px 0; }

.activity { list-style: none; margin: 12px 0 0; padding: 0; font-size: 0.92rem; }
.activity li { padding: 8px 0; border-top: 1px solid var(--line); }
.activity li:first-child { border-top: 0; }
.activity .when { display: block; font-size: 0.75rem; color: var(--muted); }

/* Task cards */
.task { border-left-width: 4px; }
.task.status-border-todo { border-left-color: var(--line); }
.task.status-border-doing { border-left-color: var(--doing); }
.task.status-border-done { border-left-color: var(--ok); }
.task-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.task .eyebrow { margin-bottom: 4px; }
.due { font-size: 0.78rem; color: var(--muted); }
.due.late { color: var(--error); }
.detail { margin: 8px 0 0; color: var(--muted); font-size: 0.92rem; max-width: 70ch; }
.updated { margin: 12px 0 0; font-size: 0.78rem; color: var(--muted); }
.owner-row { display: flex; align-items: center; gap: 10px; margin-top: 14px; }
.owner-row label { margin: 0; }
.owner-row select { width: auto; min-width: 160px; }

.status-control { display: inline-flex; margin-top: 14px; border: 1px solid var(--line); border-radius: 6px; overflow: hidden; flex-wrap: wrap; }
.status-control button {
  background: none; border: 0; border-left: 1px solid var(--line); color: var(--muted); padding: 7px 12px; font-size: 0.8rem;
}
.status-control button:first-child { border-left: 0; }
.status-control button[aria-pressed="true"].status-todo { background: var(--line); color: var(--text); }
.status-control button[aria-pressed="true"].status-doing { background: var(--doing-soft); color: var(--doing); font-weight: 500; }
.status-control button[aria-pressed="true"].status-done { background: var(--ok-soft); color: var(--ok); font-weight: 500; }

.checklist { list-style: none; margin: 14px 0 0; padding: 0; }
.checklist li { padding: 6px 0; border-top: 1px dashed var(--line); }
.checklist li:first-child { border-top: 0; }
label.check {
  display: flex; gap: 10px; align-items: flex-start; cursor: pointer; margin: 0;
  font: inherit; font-size: 0.95rem; text-transform: none; letter-spacing: 0; color: var(--text);
}
label.check input { width: 18px; height: 18px; flex: none; margin: 2px 0 0; accent-color: var(--ok); }
.checklist li.done label.check span { color: var(--muted); text-decoration: line-through; }
.checklist .who { display: block; margin-left: 28px; font-size: 0.75rem; color: var(--ok); }

/* Files */
.files { margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--line); }
.file { display: flex; align-items: center; gap: 12px; padding: 8px 0; flex-wrap: wrap; }
.file + .file { border-top: 1px dashed var(--line); }
.ver { flex: none; font-size: 0.75rem; border: 1px solid var(--line); border-radius: 4px; padding: 1px 6px; color: var(--muted); }
.file.latest .ver { border-color: var(--accent); color: var(--accent); }
.file-info { flex: 1; min-width: 180px; display: flex; flex-direction: column; }
.file-name { word-break: break-word; }
.file-meta { font-size: 0.78rem; color: var(--muted); }
.file-actions { display: flex; gap: 14px; font-size: 0.88rem; }
details.older { margin: 4px 0; font-size: 0.92rem; }
details.older summary { cursor: pointer; color: var(--accent); font-size: 0.85rem; }
.upload-bar { display: flex; align-items: center; gap: 12px; margin-top: 10px; flex-wrap: wrap; }
.files-top .intro { margin-bottom: 8px; }
.dl-all { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; }
.file-card h3 { margin-bottom: 6px; }
.group-title { margin: 28px 0 12px; }

/* Hypotheses */
.top-five { margin: 12px 0 0; padding-left: 22px; }
.top-five li { padding: 6px 0; }
.top-five .count { display: block; font-family: "IBM Plex Mono", monospace; font-size: 0.78rem; color: var(--doing); }
.vote-meter { display: flex; align-items: center; gap: 6px; margin: 0 0 14px; flex-wrap: wrap; }
.pip { width: 14px; height: 14px; border-radius: 50%; border: 2px solid var(--doing); }
.pip.on { background: var(--doing); }
.vote-meter .mono { margin-left: 8px; }
.hyp { margin-bottom: 10px; }
.hyp-vote {
  display: flex; gap: 12px; align-items: flex-start; width: 100%; text-align: left; color: inherit;
  background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px;
}
.hyp.voted .hyp-vote { border-color: var(--doing); background: var(--doing-soft); }
.hyp-vote:disabled { cursor: not-allowed; opacity: 0.55; }
.hyp-vote .dot { flex: none; width: 18px; height: 18px; margin-top: 2px; border-radius: 50%; border: 2px solid var(--doing); }
.hyp.voted .dot { background: var(--doing); }
.hyp-body { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.hyp-meta { font-size: 0.78rem; color: var(--muted); }
.hyp-tally { flex: none; display: flex; flex-direction: column; align-items: flex-end; min-width: 48px; text-align: right; }
.hyp-tally strong { font-family: "IBM Plex Mono", monospace; color: var(--doing); }
.hyp-tally .who { font-size: 0.75rem; color: var(--muted); max-width: 140px; }
.hyp > .link { margin: 4px 0 0 44px; font-size: 0.85rem; }
.add-hyp { margin-top: 24px; }
.add-hyp textarea { resize: vertical; }

/* My work */
.direction-card .inline-form { display: flex; gap: 8px; margin-top: 12px; }
.direction-card .inline-form .primary { margin-top: 0; flex: none; }

footer { font-size: 0.85rem; line-height: 1.7; margin-top: 24px; }