/* TheLabToolkit — styles */

:root {
  --bg: #f5f7f9;
  --panel: #ffffff;
  --panel-2: #eaeff2;
  --ink: #17212a;
  --ink-2: #46535e;
  --muted: #7a8894;
  --line: #dbe2e7;
  --accent: #5d7389;
  --accent-soft: #a8d8e3;
  --accent-ink: #2c4150;
  --accent-contrast: #ffffff;
  --warn: #9a5b12;
  --warn-soft: #fdf3e3;
  --radius: 10px;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
}

[data-theme="dark"] {
  --bg: #0f151a;
  --panel: #171f26;
  --panel-2: #202a32;
  --ink: #e6edf2;
  --ink-2: #aebcc7;
  --muted: #7d8b97;
  --line: #2a343d;
  --accent: #a8d8e3;
  --accent-soft: #1b2a33;
  --accent-ink: #a8d8e3;
  --accent-contrast: #12232b;
  --warn: #e0a55c;
  --warn-soft: #2a2113;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.app { display: flex; height: 100%; }

/* ---------- sidebar ---------- */

.sidebar {
  width: 244px;
  flex: 0 0 244px;
  background: var(--panel);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px 16px 14px;
}

.brand-mark {
  width: 32px; height: 32px;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-contrast);
  display: grid; place-items: center;
  font-weight: 700; font-size: 13px; letter-spacing: .5px;
}
.brand-mark svg { width: 22px; height: 22px; display: block; }

.brand-name { font-weight: 650; letter-spacing: -.01em; }
.brand-sub { font-size: 11.5px; color: var(--muted); }

nav { padding: 4px 8px 8px; flex: 1; }

.nav-group {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--muted);
  padding: 14px 8px 5px;
  font-weight: 600;
}

.nav-item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 7px 9px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--ink-2);
  font: inherit;
  font-size: 14px;
  cursor: pointer;
}

.nav-item:hover { background: var(--panel-2); color: var(--ink); }

.nav-item.active {
  background: var(--accent-soft);
  color: var(--accent-ink);
  font-weight: 550;
}

.sidebar-foot {
  padding: 12px 14px 16px;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 8px;
}

/* ---------- main ---------- */

.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }

.topbar {
  height: 52px;
  flex: 0 0 52px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 18px;
}

.topbar-title { font-weight: 600; letter-spacing: -.01em; flex: 1; }
.topbar-actions { display: flex; gap: 8px; }

.content {
  flex: 1;
  overflow-y: auto;
  padding: 22px 18px 40px;
}

.foot {
  border-top: 1px solid var(--line);
  padding: 10px 18px;
  background: var(--panel);
  display: flex;
  align-items: center;
  gap: 12px;
}
.foot[hidden] { display: none; }
.foot .muted { flex: 1; }
.foot-close {
  flex: 0 0 auto;
  width: 22px; height: 22px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  color: var(--muted);
  font-size: 15px; line-height: 1;
  cursor: pointer;
}
.foot-close:hover { background: var(--panel-2); color: var(--ink); }

/* ---------- layout primitives ---------- */

.wrap { max-width: 940px; margin: 0 auto; }

.tool-head { margin-bottom: 18px; }
.tool-head h1 { font-size: 21px; margin: 0 0 4px; letter-spacing: -.02em; }
.tool-head p { margin: 0; color: var(--muted); font-size: 13.5px; max-width: 62ch; }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 14px;
}

.panel-title {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
  font-weight: 600;
  margin-bottom: 12px;
}

.grid { display: grid; gap: 12px; }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* ---------- fields ---------- */

.field { display: grid; gap: 5px; min-width: 0; }

.field label {
  font-size: 12.5px;
  color: var(--ink-2);
  font-weight: 550;
}

.field .hint { font-size: 11.5px; color: var(--muted); }

.input-row { display: flex; gap: 6px; }
.input-row input { flex: 1; min-width: 0; }
.input-row select { flex: 0 0 auto; width: auto; }

input, select, textarea {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--bg);
  color: var(--ink);
  font: inherit;
  font-size: 14px;
}

textarea {
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.6;
  resize: vertical;
  min-height: 96px;
  letter-spacing: .04em;
}

input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
  border-color: var(--accent);
}

input.solved {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
}

select { cursor: pointer; }

/* ---------- buttons ---------- */

button { font-family: inherit; }

.ghost-btn {
  padding: 6px 11px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--panel);
  color: var(--ink-2);
  font-size: 13px;
  cursor: pointer;
}
.ghost-btn:hover { background: var(--panel-2); color: var(--ink); }

.primary-btn {
  padding: 8px 14px;
  border: 0;
  border-radius: 7px;
  background: var(--accent);
  color: var(--accent-contrast);
  font-size: 14px;
  font-weight: 550;
  cursor: pointer;
}
.primary-btn:hover { filter: brightness(1.07); }

.chip-row { display: flex; flex-wrap: wrap; gap: 6px; }

.chip {
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  color: var(--ink-2);
  font-size: 12.5px;
  cursor: pointer;
}
.chip:hover { border-color: var(--accent); color: var(--accent-ink); }
.chip.on { background: var(--accent-soft); border-color: var(--accent); color: var(--accent-ink); font-weight: 550; }

/* ---------- results ---------- */

.result {
  background: var(--accent-soft);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 14px;
}

.result-main {
  font-size: 26px;
  font-weight: 640;
  letter-spacing: -.02em;
  color: var(--accent-ink);
  font-variant-numeric: tabular-nums;
}

.result-sub { font-size: 13px; color: var(--ink-2); margin-top: 4px; }

.readout {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
}

.readout .cell { min-width: 0; }
.readout .k { font-size: 11.5px; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }
.readout .v {
  font-size: 17px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: -.01em;
  overflow-wrap: anywhere;
}

.note {
  background: var(--warn-soft);
  border: 1px solid var(--warn);
  color: var(--warn);
  border-radius: 8px;
  padding: 9px 12px;
  font-size: 13px;
  margin-bottom: 12px;
}

/* ---------- tables ---------- */

.table-scroll { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
  font-variant-numeric: tabular-nums;
}

th, td {
  text-align: left;
  padding: 7px 10px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

th {
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--muted);
  font-weight: 600;
}

tbody tr:hover { background: var(--panel-2); }
td.num { font-family: var(--mono); font-size: 12.5px; }

/* ---------- plate ---------- */

.plate-scroll { overflow-x: auto; padding-bottom: 6px; }

.plate { border-collapse: separate; border-spacing: 3px; }

.plate th {
  font-size: 10.5px;
  color: var(--muted);
  padding: 0 2px;
  text-align: center;
  border: 0;
}

.plate td { padding: 0; border: 0; }

.well {
  width: 34px; height: 26px;
  border-radius: 5px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  font-size: 9.5px;
  display: grid;
  place-items: center;
  cursor: pointer;
  overflow: hidden;
  color: var(--ink-2);
  user-select: none;
}

.plate.p384 .well { width: 19px; height: 16px; font-size: 0; }

.legend { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.legend .item { display: flex; align-items: center; gap: 6px; font-size: 12.5px; }
.legend .sw { width: 13px; height: 13px; border-radius: 4px; border: 1px solid var(--line); }

/* ---------- sequence ---------- */

.seq-stats { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 8px; }
.seq-stats span { font-size: 12.5px; color: var(--muted); }
.seq-stats b { color: var(--ink); font-weight: 600; }

/* ---------- library ---------- */

.lib-layout {
  display: grid;
  grid-template-columns: minmax(210px, 290px) 1fr;
  gap: 14px;
  align-items: start;
}

#libList { display: grid; gap: 8px; }

.lib-card {
  display: grid;
  gap: 3px;
  text-align: left;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--panel);
  cursor: pointer;
  font: inherit;
}
.lib-card:hover { border-color: var(--accent); }
.lib-card.on { border-color: var(--accent); background: var(--accent-soft); }

.lib-badge {
  justify-self: start;
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: .05em;
  font-weight: 600;
  color: var(--accent-ink);
  background: var(--accent-soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 1px 8px;
}
.lib-card.on .lib-badge { background: var(--panel); }
.lib-title { font-size: 14px; font-weight: 550; color: var(--ink); overflow-wrap: anywhere; }
.lib-date { font-size: 11.5px; color: var(--muted); }

@media (max-width: 720px) {
  .lib-layout { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- install banner ---------- */

.install-banner {
  position: fixed;
  left: 50%;
  bottom: 16px;
  transform: translateX(-50%);
  z-index: 40;
  width: calc(100% - 28px);
  max-width: 520px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 8px 30px rgba(0,0,0,.18);
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}
/* The [hidden] attribute must win over the display:flex above. */
.install-banner[hidden] { display: none; }

.install-banner .ib-text { flex: 1; font-size: 13.5px; line-height: 1.4; }
.install-banner .ib-text b { font-weight: 600; }
.install-banner .ib-share {
  display: inline-grid; place-items: center;
  width: 18px; height: 18px; vertical-align: -4px;
  color: var(--accent);
}
.install-banner .ib-actions { display: flex; gap: 8px; flex: 0 0 auto; }
.install-banner .primary-btn { padding: 6px 12px; }

/* ---------- customize toolkit ---------- */

.cust-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 7px 0;
  border-bottom: 1px solid var(--line);
}
.cust-row:last-child { border-bottom: 0; }

.cust-toggle {
  display: flex;
  align-items: center;
  gap: 9px;
  cursor: pointer;
  font-size: 14px;
}
.cust-toggle input { width: auto; margin: 0; }

.cust-move { padding: 3px 9px; line-height: 1; }
.cust-move:disabled { opacity: .35; cursor: default; }

/* ---------- misc ---------- */

.muted { color: var(--muted); }
.tiny { font-size: 11.5px; line-height: 1.45; }
.row-between { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.stack { display: grid; gap: 10px; }
.only-mobile { display: none; }
.scrim { display: none; }

.formula {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  background: var(--panel-2);
  border-radius: 6px;
  padding: 7px 10px;
  margin-top: 10px;
  overflow-x: auto;
  white-space: nowrap;
}

/* ---------- responsive ---------- */

@media (max-width: 860px) {
  .g4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .g3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 720px) {
  .only-mobile { display: block; }
  .g2, .g3, .g4 { grid-template-columns: minmax(0, 1fr); }

  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 30;
    transform: translateX(-100%);
    transition: transform .18s ease;
    box-shadow: 0 0 40px rgba(0,0,0,.18);
  }
  .sidebar.open { transform: none; }

  .scrim.on {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.35);
    z-index: 20;
  }

  .content { padding: 16px 14px 40px; }
  .result-main { font-size: 22px; }
}

@media print {
  .sidebar, .topbar, .foot { display: none; }
  .content { overflow: visible; padding: 0; }
  body { background: #fff; }
}