:root {                    /* default: Royal — royal blue & gold */
  --bg: #0d1322; --panel: #15203a; --panel2: #1d2b4e; --line: #2b3c66;
  --text: #e9ecf5; --muted: #96a2c4; --accent: #d9b45b;
  --up: #66c98a; --down: #e0716f;
}
html[data-theme="ember"] {
  --bg: #111318; --panel: #191c24; --panel2: #222633; --line: #2a2f3c;
  --text: #eae7e0; --muted: #9298a8; --accent: #e5a558;
  --up: #69c98a; --down: #e0716f;
}
html[data-theme="ice"] {
  --bg: #0d1418; --panel: #141d23; --panel2: #1c2830; --line: #263540;
  --text: #e4ebee; --muted: #8fa3ad; --accent: #56c3dc;
  --up: #69c98a; --down: #e0716f;
}
html[data-theme="nocturne"] {
  --bg: #141020; --panel: #1c1730; --panel2: #262040; --line: #322a52;
  --text: #eae6f2; --muted: #9d94b8; --accent: #a78bda;
  --up: #69c98a; --down: #e0716f;
}
html[data-theme="paper"] { /* light */
  --bg: #f5f2ec; --panel: #fdfbf7; --panel2: #ece6d8; --line: #d8d1c0;
  --text: #29261f; --muted: #7a7468; --accent: #8a6d1d;
  --up: #1a8f4a; --down: #c04543;
}
:root {
  --accent-soft: color-mix(in srgb, var(--accent) 14%, transparent);
  --up-soft: color-mix(in srgb, var(--up) 14%, transparent);
  --down-soft: color-mix(in srgb, var(--down) 14%, transparent);
  --radius: 14px;
  --mono: ui-monospace, "Cascadia Mono", "SF Mono", Menlo, Consolas, monospace;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { background: var(--bg); }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  max-width: 640px;
  margin: 0 auto;
  padding: calc(env(safe-area-inset-top) + 14px)
           calc(env(safe-area-inset-right) + 16px)
           calc(env(safe-area-inset-bottom) + 28px)
           calc(env(safe-area-inset-left) + 16px);
  -webkit-tap-highlight-color: transparent;
}
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
.theme-row { margin-top: 26px; display: flex; align-items: center; gap: 12px; justify-content: center; }
.theme-label { color: var(--muted); font-size: 0.75rem; }
.theme-dot { width: 26px; height: 26px; border-radius: 50%; border: 2px solid var(--line); padding: 0; }
.theme-dot.sel { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-soft); }
.foot-note { color: var(--muted); font-size: 0.72rem; text-align: center; margin-top: 8px; line-height: 1.5; }

/* ---------- Thesis app styles (CSS variables only) ---------- */

/* top bars */
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 14px; }
.title { font-size: 1.2rem; font-weight: 700; letter-spacing: 0.02em; }
.vtitle { flex: 1; display: flex; align-items: center; gap: 8px; font-size: 1.05rem; font-weight: 700; min-width: 0; }
.vtitle .inst { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.linkbtn { color: var(--accent); font-size: 0.85rem; font-weight: 600; padding: 6px 2px; }
.backbtn { color: var(--muted); font-size: 0.9rem; padding: 6px 8px 6px 0; white-space: nowrap; }

.btn-primary {
  display: block; width: 100%;
  background: var(--accent-soft); border: 1px solid var(--accent); color: var(--accent);
  border-radius: var(--radius); padding: 12px;
  font-weight: 700; font-size: 0.95rem;
  margin-bottom: 18px;
}
.section-label {
  color: var(--muted); font-size: 0.7rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.09em;
  margin: 18px 0 8px;
}
.sumline { color: var(--muted); font-size: 0.8rem; margin: -2px 0 10px; }

/* open-idea cards */
.card {
  display: block; width: 100%; text-align: left;
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 12px 14px; margin-bottom: 10px;
}
.card:active { background: var(--panel2); }
.card-top { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.inst { font-weight: 700; font-size: 1rem; }
.badge-dir {
  background: var(--accent-soft); color: var(--accent);
  font-size: 0.62rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em;
  padding: 2px 8px; border-radius: 999px;
}
.thesis-line { font-size: 0.87rem; margin-bottom: 8px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.card-meta { display: flex; align-items: center; gap: 12px; color: var(--muted); font-size: 0.75rem; }
.chip-h { border: 1px solid var(--line); border-radius: 999px; padding: 1px 8px; font-size: 0.68rem; color: var(--muted); }

/* conviction dots */
.dots { display: inline-flex; align-items: center; gap: 3px; }
.dot { width: 7px; height: 7px; border-radius: 50%; border: 1px solid var(--line); }
.dot.on { background: var(--accent); border-color: var(--accent); }
.dots.mini .dot { width: 5px; height: 5px; }

/* closed rows */
.closed-row {
  display: flex; align-items: center; gap: 10px;
  width: 100%; text-align: left;
  padding: 9px 4px; border-bottom: 1px solid var(--line);
}
.mk { width: 16px; text-align: center; font-weight: 700; flex: none; }
.mk-right { color: var(--up); }
.mk-wrong { color: var(--down); }
.mk-scratch { color: var(--muted); }
.inst-sm { flex: 1; min-width: 0; font-size: 0.9rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cdate { color: var(--muted); font-size: 0.75rem; flex: none; }

.empty {
  border: 1px dashed var(--line); border-radius: var(--radius);
  color: var(--muted); text-align: center;
  padding: 22px 14px; font-size: 0.85rem; margin-bottom: 10px;
}

/* forms */
.field { margin-bottom: 14px; }
.flabel {
  color: var(--muted); font-size: 0.7rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.09em; margin-bottom: 6px;
}
input[type="text"], textarea {
  width: 100%; font-size: 16px; font-family: inherit; /* 16px stops iOS focus zoom */
  background: var(--panel); color: var(--text);
  border: 1px solid var(--line); border-radius: 10px;
  padding: 10px 12px;
}
input[type="text"]:focus, textarea:focus { outline: none; border-color: var(--accent); }
textarea { min-height: 92px; resize: vertical; line-height: 1.45; }
::placeholder { color: var(--muted); opacity: 0.75; }

.seg { display: flex; gap: 8px; }
.seg-btn {
  flex: 1; padding: 10px 6px; text-align: center;
  background: var(--panel); border: 1px solid var(--line); border-radius: 10px;
  color: var(--muted); font-size: 0.9rem; font-weight: 600;
}
.seg-btn.sel { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }
.seg-conv .seg-btn { font-family: var(--mono); }
.bigrow { margin-bottom: 14px; }
.bigrow .seg-btn { padding: 15px 6px; font-size: 0.95rem; font-weight: 700; }
.bigrow .seg-btn.out-right.sel { background: var(--up-soft); border-color: var(--up); color: var(--up); }
.bigrow .seg-btn.out-wrong.sel { background: var(--down-soft); border-color: var(--down); color: var(--down); }
.bigrow .seg-btn.out-scratch.sel { background: var(--panel2); border-color: var(--muted); color: var(--text); }
.err { color: var(--down); font-size: 0.8rem; min-height: 1.1em; margin: 2px 0 8px; }

/* detail */
.metacard {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 12px 14px; margin-bottom: 16px;
}
.metainfo { color: var(--muted); font-size: 0.78rem; }
.dblock { margin-bottom: 14px; }
.dlabel {
  color: var(--muted); font-size: 0.7rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.09em; margin-bottom: 4px;
}
.dval { font-size: 0.92rem; line-height: 1.5; white-space: pre-wrap; overflow-wrap: break-word; }
.dval.none { color: var(--muted); }
.outblock {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 12px 14px; margin: 4px 0 16px;
}
.outline-row { display: flex; align-items: baseline; gap: 8px; margin-bottom: 10px; }
.outword { font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; }
.outword.right { color: var(--up); }
.outword.wrong { color: var(--down); }
.outword.scratch { color: var(--muted); }
.btn-del {
  display: block; width: 100%; text-align: center;
  color: var(--muted); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 11px; font-size: 0.85rem; margin-top: 26px;
}
.btn-del.armed { color: var(--down); border-color: var(--down); background: var(--down-soft); font-weight: 700; }

/* stats */
.tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.tile {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 12px 8px; text-align: center;
}
.tile .v { font-size: 1.3rem; font-weight: 700; }
.tile .k { color: var(--muted); font-size: 0.64rem; text-transform: uppercase; letter-spacing: 0.07em; margin-top: 3px; }
.bar-row { display: grid; grid-template-columns: 56px 1fr 96px; gap: 10px; align-items: center; margin: 9px 0; }
.bar-label { font-size: 0.85rem; }
.bar-track { height: 10px; background: var(--panel2); border-radius: 5px; overflow: hidden; }
.bar-fill { height: 100%; background: var(--accent); border-radius: 5px; }
.bar-num { display: flex; align-items: baseline; justify-content: flex-end; gap: 6px; font-size: 0.82rem; }
.muted { color: var(--muted); }
.nn { color: var(--muted); font-size: 0.7rem; }
.insight { color: var(--muted); font-size: 0.8rem; margin: 10px 0 4px; }
.export-block { margin-top: 26px; }
.exportrow { display: flex; gap: 10px; }
.btn-ghost {
  flex: 1; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  color: var(--text); padding: 11px; font-size: 0.85rem; font-weight: 600;
}
.statusline { color: var(--muted); font-size: 0.78rem; text-align: center; margin-top: 10px; }