:root {
  --desk: #dfe5e7;
  --box: #1f2d36;
  --box-ink: #e6edf0;
  --box-dim: #93a6b0;
  --card: #fffefb;
  --rule: #c5d8ea;
  --margin: #d8534a;
  --ink: #1c2730;
  --dim: #5b6b75;
  --accent: #1c6b74;
  --danger: #a3342c;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --sans: "Avenir Next", "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
  --t-relevant: #6b7a85;
  --t-supporting: #2f6f9f;
  --t-rant: #b5481f;
  --t-solution: #2c7a4b;
  --t-case: #7a4a9c;
}

* { box-sizing: border-box; }
html { font-size: 17px; }
body {
  margin: 0;
  background: var(--desk);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.5;
}
a { color: var(--accent); }
:focus-visible { outline: 3px solid #f1b84a; outline-offset: 2px; }

/* ---------- Sign-in ---------- */
.gate { display: grid; place-items: center; min-height: 100vh; padding: 1.5rem; }
.gate-card {
  width: min(24rem, 100%);
  background: var(--card);
  padding: 2rem 1.75rem 1.75rem;
  border-top: 4px solid var(--margin);
  background-image: repeating-linear-gradient(to bottom, transparent 0 1.7rem, var(--rule) 1.7rem calc(1.7rem + 1px));
  box-shadow: 0 1px 0 #b9c4c9, 0 12px 24px -16px rgba(20, 35, 45, .5);
}
.gate-card h1 { font-family: var(--serif); font-weight: 600; margin: 0 0 .75rem; }
.gate-card form { display: grid; gap: 1rem; margin-top: 1rem; }

/* ---------- Layout ---------- */
.shell { display: grid; grid-template-columns: 17rem 1fr; min-height: 100vh; }
.box {
  background: var(--box);
  color: var(--box-ink);
  padding: 1.5rem 1.1rem;
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
.brand {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--box-ink);
  text-decoration: none;
}
.count { margin: .15rem 0 1.25rem; color: var(--box-dim); font-size: .85rem; }

.pillar { margin-bottom: .35rem; }
.pillar-link, .chapters a {
  display: flex;
  justify-content: space-between;
  gap: .5rem;
  padding: .4rem .6rem;
  border-radius: 4px;
  color: var(--box-ink);
  text-decoration: none;
}
.pillar-link { font-weight: 600; }
.pillar-link:hover, .chapters a:hover { background: rgba(255, 255, 255, .08); }
.pillar.on > .pillar-link { background: rgba(255, 255, 255, .1); }
.chapters { list-style: none; margin: .2rem 0 .4rem .9rem; padding: 0 0 0 .6rem; border-left: 1px solid rgba(255, 255, 255, .18); }
.chapters a { font-size: .93rem; color: #c9d6dc; }
.chapters a.on { background: var(--margin); color: #fff; }
.n { color: var(--box-dim); font-variant-numeric: tabular-nums; }
.chapters a.on .n { color: #ffe1de; }

.mini { display: flex; gap: .4rem; margin: .35rem 0 .6rem .9rem; }
.mini input {
  flex: 1;
  min-width: 0;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .18);
  color: var(--box-ink);
  padding: .35rem .5rem;
  border-radius: 4px;
  font: inherit;
  font-size: .88rem;
}
.mini input::placeholder { color: var(--box-dim); }
.pillar-add { margin-left: 0; margin-top: 1rem; }
.mini .btn { background: rgba(255, 255, 255, .12); color: var(--box-ink); border-color: transparent; }

.box-foot { margin-top: auto; padding-top: 1.5rem; display: grid; gap: .5rem; font-size: .88rem; }
.box-foot a { color: var(--box-dim); }
.linklike { background: none; border: 0; padding: 0; color: var(--box-dim); font: inherit; text-align: left; text-decoration: underline; cursor: pointer; }

/* ---------- Desk ---------- */
.desk { padding: 1.75rem clamp(1rem, 3vw, 2.5rem) 4rem; max-width: 62rem; width: 100%; }
.desk-head { display: flex; flex-wrap: wrap; gap: .75rem 1.5rem; align-items: center; justify-content: space-between; margin-bottom: 1rem; }
.desk-head h1 { font-family: var(--serif); font-weight: 600; font-size: 1.75rem; margin: 0; }
.search { display: flex; gap: .4rem; flex: 1 1 18rem; max-width: 26rem; }
.search input { flex: 1; min-width: 0; }

.flash { background: #e6f2ea; border-left: 4px solid var(--t-solution); padding: .55rem .8rem; margin: 0 0 1rem; }
.error { color: var(--danger); font-weight: 600; }

.filters { display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: 1rem; }
.chip {
  padding: .25rem .7rem;
  border: 1px solid #aebbc2;
  border-radius: 999px;
  text-decoration: none;
  color: var(--ink);
  font-size: .88rem;
  background: rgba(255, 255, 255, .5);
}
.chip.on { background: var(--ink); color: #fff; border-color: var(--ink); }

/* ---------- Form controls ---------- */
label { display: grid; gap: .25rem; font-size: .9rem; font-weight: 600; color: var(--dim); }
input, select, textarea {
  font: inherit;
  font-weight: 400;
  color: var(--ink);
  background: #fff;
  border: 1px solid #b7c3ca;
  border-radius: 4px;
  padding: .5rem .6rem;
  width: 100%;
}
textarea { resize: vertical; font-family: var(--serif); line-height: 1.55; }
.btn {
  display: inline-block;
  font: inherit;
  font-size: .92rem;
  font-weight: 600;
  padding: .5rem .95rem;
  border: 1px solid #9fb0b8;
  background: #fff;
  color: var(--ink);
  border-radius: 4px;
  cursor: pointer;
  text-decoration: none;
  width: auto;
}
.btn:hover { background: #eef3f5; }
.btn.small { padding: .3rem .65rem; font-size: .85rem; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: #17575e; }
.btn.danger { color: var(--danger); border-color: #d9aaa5; }

/* ---------- Composer ---------- */
.composer, .manage { margin-bottom: 1.25rem; }
.composer > summary, .manage > summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--accent);
  padding: .3rem 0;
}
.manage > summary { font-weight: 500; font-size: .9rem; color: var(--dim); }
.composer[open] > summary { margin-bottom: .6rem; }
.card-form {
  display: grid;
  gap: 1rem;
  background: var(--card);
  padding: 1.25rem 1.25rem 1rem;
  border-top: 4px solid var(--margin);
  box-shadow: 0 1px 0 #b9c4c9, 0 12px 24px -16px rgba(20, 35, 45, .5);
}
.row.two { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.row.two > div { display: grid; gap: 1rem; align-content: start; }
.radios { display: flex; flex-wrap: wrap; gap: 1.25rem; margin-top: -.4rem; }
.radios label { display: flex; align-items: center; gap: .4rem; font-weight: 500; }
.radios input, .tagpick input { width: auto; }
.tagset { border: 0; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .5rem; }
.tagset legend { font-size: .9rem; font-weight: 600; color: var(--dim); padding: 0; margin-bottom: .35rem; }
.tagpick { display: flex; align-items: center; gap: .4rem; font-weight: 600; font-size: .88rem; padding: .3rem .7rem; border-radius: 999px; border: 1px solid currentColor; background: #fff; cursor: pointer; }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: .6rem; }
.hint { color: var(--dim); font-size: .82rem; margin-left: auto; }

.manage-body { display: flex; flex-wrap: wrap; gap: .75rem; padding: .5rem 0; }
form.inline { display: flex; gap: .4rem; }
form.inline input { width: 16rem; max-width: 100%; }

.result-count { color: var(--dim); font-size: .88rem; margin: 0 0 .75rem; }
.empty { background: rgba(255, 255, 255, .55); border: 1px dashed #9fb0b8; padding: 1rem 1.2rem; border-radius: 4px; }

/* ---------- Index cards ---------- */
.stack { display: grid; gap: 1.25rem; }
.index-card {
  background-color: var(--card);
  background-image: repeating-linear-gradient(to bottom, transparent 0 1.72rem, var(--rule) 1.72rem calc(1.72rem + 1px));
  border-top: 4px solid var(--margin);
  padding: 1rem 1.4rem 1rem 1.4rem;
  box-shadow: 0 1px 0 #b9c4c9, 0 10px 22px -16px rgba(20, 35, 45, .55);
}
.index-card header { display: flex; flex-wrap: wrap; gap: .4rem 1rem; justify-content: space-between; align-items: flex-start; }
.index-card h2 { font-family: var(--serif); font-size: 1.3rem; line-height: 1.25; margin: 0; font-weight: 600; }
.tags { list-style: none; display: flex; flex-wrap: wrap; gap: .3rem; margin: .15rem 0 0; padding: 0; }
.tag { font-size: .78rem; font-weight: 700; padding: .1rem .55rem; border-radius: 3px; color: #fff; }
.path { margin: .2rem 0 .6rem; font-size: .85rem; }
.path a { color: var(--dim); }

.kind { margin: .8rem 0 .15rem; font-size: .8rem; font-weight: 700; color: var(--dim); }
.body { font-family: var(--serif); line-height: 1.72rem; max-width: 46rem; overflow-wrap: anywhere; }
.excerpt.quoted .body { padding-left: .9rem; border-left: 3px solid var(--margin); }
.excerpt.mine .body { padding-left: .9rem; border-left: 3px solid var(--accent); }
.take .body { font-style: italic; }
.cite .body { font-family: var(--sans); font-size: .88rem; line-height: 1.5; color: var(--dim); }

.index-card footer { display: flex; flex-wrap: wrap; align-items: center; gap: .6rem .9rem; margin-top: 1rem; padding-top: .7rem; border-top: 1px solid var(--rule); background: var(--card); font-size: .85rem; color: var(--dim); }
.index-card footer form { margin: 0; }
.index-card footer .btn:first-of-type { margin-left: auto; }

/* ---------- Tag colours ---------- */
.tag.t-relevant { background: var(--t-relevant); }
.tag.t-supporting { background: var(--t-supporting); }
.tag.t-rant { background: var(--t-rant); }
.tag.t-solution { background: var(--t-solution); }
.tag.t-case { background: var(--t-case); }
.tagpick.t-relevant { color: var(--t-relevant); }
.tagpick.t-supporting { color: var(--t-supporting); }
.tagpick.t-rant { color: var(--t-rant); }
.tagpick.t-solution { color: var(--t-solution); }
.tagpick.t-case { color: var(--t-case); }
.chip.t-supporting { border-color: var(--t-supporting); }
.chip.t-rant { border-color: var(--t-rant); }
.chip.t-solution { border-color: var(--t-solution); }
.chip.t-case { border-color: var(--t-case); }
.chip.t-relevant { border-color: var(--t-relevant); }
.chip.on { background: var(--ink); color: #fff; }

/* ---------- Small screens ---------- */
@media (max-width: 860px) {
  .shell { grid-template-columns: 1fr; }
  .box { position: static; height: auto; }
  .row.two { grid-template-columns: 1fr; }
  .hint { display: none; }
  .index-card footer .btn:first-of-type { margin-left: 0; }
}
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}