/* ------------------------------------------------------------------ tokens */

:root {
  --bg: #f2f3f6;
  --panel: #ffffff;
  --panel-2: #f8f9fb;
  --panel-3: #eceef3;
  --fg: #171a21;
  --fg-2: #4a5160;
  --fg-3: #7a8291;
  --line: #e0e3e9;
  --line-2: #c5cbd5;
  --accent: #3b5bdb;
  --accent-2: #2f4ac0;
  --accent-fg: #ffffff;
  --accent-weak: #e8edfd;
  --pass: #1b7f45;
  --pass-weak: #e3f4e9;
  --pass-line: #a3d9b8;
  --fail: #c2372b;
  --fail-weak: #fdeae8;
  --fail-line: #f0b0a9;
  --warn: #9b5d00;
  --warn-weak: #fcf1dc;
  --warn-line: #e9c98a;
  --none: #6b7280;
  --none-weak: #eef0f3;
  --on-strong: #ffffff;
  --c-eq: #0c8599;
  --c-dyn: #7048e8;
  --c-space: #1971c2;
  --c-mod: #c2255c;
  --c-tone: #d9480f;
  --c-route: #5c6573;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --radius: 10px;
  --g-lane: 44px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1014;
    --panel: #161920;
    --panel-2: #1b1f27;
    --panel-3: #252a35;
    --fg: #e7e9ee;
    --fg-2: #aab1bf;
    --fg-3: #788192;
    --line: #2a2f3a;
    --line-2: #3d4452;
    --accent: #7c93ff;
    --accent-2: #94a7ff;
    --accent-fg: #0e1014;
    --accent-weak: #222b4d;
    --pass: #5ccf8a;
    --pass-weak: #15301f;
    --pass-line: #2c6a45;
    --fail: #ff8a80;
    --fail-weak: #3a1b19;
    --fail-line: #7a3530;
    --warn: #f2b45a;
    --warn-weak: #3a2a12;
    --warn-line: #7a5a22;
    --none: #9aa3b2;
    --none-weak: #232833;
    --on-strong: #0e1014;
    --c-eq: #3bc9db;
    --c-dyn: #9775fa;
    --c-space: #4dabf7;
    --c-mod: #f06595;
    --c-tone: #ff922b;
    --c-route: #8b95a5;
    color-scheme: dark;
  }
}

/* -------------------------------------------------------------------- base */

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--bg);
  color: var(--fg);
  font: 14px/1.5 var(--sans);
  -webkit-font-smoothing: antialiased;
}
code, pre { font-family: var(--mono); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
[hidden] { display: none !important; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.btn {
  appearance: none;
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid var(--line-2);
  background: var(--panel);
  color: var(--fg);
  font: 600 13px/1.2 var(--sans);
  padding: 7px 12px;
  border-radius: 8px;
  cursor: pointer;
  white-space: nowrap;
}
.btn:hover:not(:disabled) { background: var(--panel-2); border-color: var(--fg-3); }
.btn:disabled { opacity: 0.4; cursor: default; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-fg); }
.btn-primary:hover:not(:disabled) { background: var(--accent-2); border-color: var(--accent-2); }
.btn-quiet { background: transparent; border-color: transparent; color: var(--fg-2); }
.btn-quiet:hover:not(:disabled) { background: var(--panel-3); border-color: transparent; }
.btn-link {
  background: none; border: 0; padding: 2px 0; color: var(--accent);
  font-weight: 600; font-size: 12.5px;
}
.btn-link:hover:not(:disabled) { background: none; text-decoration: underline; }

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

.shell { display: flex; flex-direction: column; height: 100vh; height: 100dvh; }

.topbar {
  flex: none;
  display: grid; gap: 9px;
  grid-template-columns: minmax(0, 1fr);
  padding: 10px 16px 10px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
.topbar-row { display: flex; align-items: center; gap: 12px 20px; flex-wrap: wrap; }
.brand { display: flex; flex-direction: column; min-width: 0; flex: 1 1 200px; }
.brand h1 { margin: 0; font-size: 15px; line-height: 1.3; font-weight: 700; letter-spacing: -0.01em; white-space: nowrap; }
.src { max-width: 100%; color: var(--fg-3); font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.progress { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--fg-2); white-space: nowrap; }
.progress b { color: var(--fg); font-variant-numeric: tabular-nums; }

.actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

.btn-icon { padding: 7px; }
.btn-icon svg { display: block; }

.sampling { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--fg-2); }
.sampling select {
  appearance: none; -webkit-appearance: none;
  padding: 7px 28px 7px 10px; border-radius: 8px;
  border: 1px solid var(--line-2); color: var(--fg);
  font: 600 13px/1.2 var(--sans); cursor: pointer;
  background-color: var(--panel);
  background-image:
    linear-gradient(45deg, transparent 50%, var(--fg-3) 50%),
    linear-gradient(135deg, var(--fg-3) 50%, transparent 50%);
  background-position: calc(100% - 15px) 52%, calc(100% - 10px) 52%;
  background-size: 5px 5px;
  background-repeat: no-repeat;
}
.sampling select:hover:not(:disabled) { border-color: var(--fg-3); }
.sampling select:disabled { opacity: 0.45; cursor: default; }

.switch { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--fg-2); cursor: pointer; margin-right: 6px; user-select: none; }
.switch input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.switch-track {
  position: relative; width: 30px; height: 18px; flex: none;
  border-radius: 999px; background: var(--line-2); transition: background 0.15s;
}
.switch-track::after {
  content: ""; position: absolute; top: 2px; left: 2px; width: 14px; height: 14px;
  border-radius: 50%; background: var(--panel); box-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
  transition: transform 0.15s;
}
.switch input:checked + .switch-track { background: var(--accent); }
.switch input:checked + .switch-track::after { transform: translateX(12px); }
.switch input:focus-visible + .switch-track { outline: 2px solid var(--accent); outline-offset: 2px; }

.strip {
  display: grid;
  grid-template-columns: repeat(var(--cols, 100), minmax(0, 1fr));
  gap: 3px;
}
.cell {
  appearance: none; border: 0; padding: 0; margin: 0;
  height: 12px; border-radius: 2px; cursor: pointer;
  background: var(--panel-3);
  box-shadow: inset 0 0 0 1px var(--line-2);
}
.cell.partial { background: var(--accent-weak); box-shadow: inset 0 0 0 1px var(--accent); }
.cell.done { background: var(--accent); box-shadow: none; }
.cell.current { outline: 2px solid var(--fg); outline-offset: 1px; }
.cell:hover { filter: brightness(0.9); }

.exbar {
  flex: none;
  display: flex; align-items: center; gap: 14px;
  padding: 8px 16px;
  background: var(--panel-2);
  border-bottom: 1px solid var(--line);
}
.ex-title { flex: 1; min-width: 0; display: flex; align-items: baseline; gap: 6px 14px; flex-wrap: wrap; }
.ex-title strong { font-size: 15px; white-space: nowrap; font-variant-numeric: tabular-nums; }
.ex-meta { display: flex; align-items: baseline; gap: 4px 14px; flex-wrap: wrap; color: var(--fg-3); font-size: 12px; }
.ex-meta code { color: var(--fg-2); font-size: 12px; }
.ex-meta a { color: var(--accent); text-decoration: none; }
.ex-meta a:hover { text-decoration: underline; }
.status-pill {
  align-self: center;
  font-size: 11.5px; font-weight: 600; padding: 1px 8px; border-radius: 999px;
  background: var(--panel-3); color: var(--fg-2);
}
.status-pill.done { background: var(--accent); color: var(--accent-fg); }
.status-pill.partial { background: var(--accent-weak); color: var(--accent); }

.cols { flex: 1; min-height: 0; display: grid; grid-template-columns: minmax(0, 2.05fr) minmax(380px, 1fr); }
.main { min-height: 0; display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); }
.pane, .review { min-height: 0; overflow: auto; padding: 16px 16px 28px; }
.review { background: var(--panel-2); border-left: 1px solid var(--line); }

.section-title {
  margin: 0 0 8px;
  font-size: 11px; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase;
  color: var(--fg-3);
}
.section-title:not(:first-child) { margin-top: 20px; }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
}

/* ------------------------------------------------------------ text panes */

.caption { margin: 0; color: var(--fg-2); line-height: 1.6; }

.prompts { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.prompt {
  display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 12px; align-items: start;
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 12px 14px;
}
.al-badge {
  font: 700 12px/1 var(--mono);
  padding: 5px 7px; border-radius: 6px;
  background: var(--accent-weak); color: var(--accent);
}
.prompt-text { margin: 0; font-size: 15px; line-height: 1.55; white-space: pre-wrap; overflow-wrap: anywhere; }
.prompt-text .num {
  font-family: var(--mono); font-size: 0.9em; font-variant-numeric: tabular-nums;
  padding: 0 3px; border-radius: 4px; background: var(--panel-3);
}
.prompt-missing { color: var(--fg-3); font-style: italic; }

.raw { margin-top: 12px; border-top: 1px solid var(--line); padding-top: 10px; }
.raw summary { cursor: pointer; color: var(--fg-3); font-size: 12px; }
.raw summary code { font-size: 11.5px; }
.raw pre {
  margin: 8px 0 0; padding: 10px; border-radius: 8px; background: var(--panel-2); border: 1px solid var(--line);
  font-size: 11.5px; line-height: 1.5; white-space: pre-wrap; overflow-wrap: anywhere; color: var(--fg-2);
}

/* -------------------------------------------------------------- criteria */

.crit {
  display: grid; gap: 10px;
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 12px 14px 14px;
}
.crit + .crit { margin-top: 12px; }
.crit-head h3 { margin: 0; font-size: 14px; display: flex; align-items: baseline; gap: 8px; }
.crit-key { font-size: 11px; font-weight: 400; color: var(--fg-3); }
.crit-hint { margin: 2px 0 0; font-size: 12.5px; color: var(--fg-3); }

.who {
  flex: none; width: 46px;
  font-size: 10.5px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--fg-3);
}
.judge {
  display: grid; gap: 6px;
  padding: 8px 10px; border-radius: 8px;
  background: var(--panel-2); border: 1px solid var(--line);
}
.judge-row, .you-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.judge-hidden { color: var(--fg-3); font-size: 12.5px; font-style: italic; }
.chip {
  display: inline-flex; align-items: center;
  padding: 1px 9px; border-radius: 999px; border: 1px solid;
  font-size: 12px; font-weight: 650;
}
.chip.pass { color: var(--pass); background: var(--pass-weak); border-color: var(--pass-line); }
.chip.fail { color: var(--fail); background: var(--fail-weak); border-color: var(--fail-line); }
.chip.warn { color: var(--warn); background: var(--warn-weak); border-color: var(--warn-line); }
.chip.none { color: var(--none); background: var(--none-weak); border-color: var(--line-2); }
.tag {
  font: 11px/1.6 var(--mono); padding: 0 6px; border-radius: 4px;
  background: var(--panel-3); color: var(--fg-2);
}
.why { margin: 0; font-size: 12.5px; line-height: 1.5; color: var(--fg-2); }
.why-ref {
  display: inline-block; margin-right: 6px;
  font: 700 11px/1.5 var(--mono); padding: 0 5px; border-radius: 4px;
  background: var(--accent-weak); color: var(--accent);
}

.seg { display: inline-flex; border: 1px solid var(--line-2); border-radius: 8px; overflow: hidden; }
.seg button {
  appearance: none; border: 0; margin: 0;
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 14px;
  background: var(--panel); color: var(--fg-2);
  font: 600 13px/1.2 var(--sans); cursor: pointer;
}
.seg button + button { border-left: 1px solid var(--line-2); }
.seg button:hover { background: var(--panel-2); color: var(--fg); }
.seg button:focus-visible { outline-offset: -3px; }
.seg .pass[aria-pressed="true"] { background: var(--pass); color: var(--on-strong); }
.seg .fail[aria-pressed="true"] { background: var(--fail); color: var(--on-strong); }
.opt-icon { font-size: 12px; }
.agree { font-size: 12px; color: var(--fg-3); }
.agree.disagree { color: var(--warn); font-weight: 650; }

.crit textarea {
  width: 100%; min-height: 66px; resize: vertical;
  padding: 8px 10px; border-radius: 8px;
  border: 1px solid var(--line-2); background: var(--panel); color: var(--fg);
  font: 13px/1.45 var(--sans);
}
.crit textarea::placeholder { color: var(--fg-3); }
.crit textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: transparent; }

.review-foot { display: flex; justify-content: space-between; gap: 8px; margin-top: 14px; }
.save-status { margin: 10px 0 0; font-size: 12px; color: var(--fg-3); }
.save-status.error { color: var(--fail); font-weight: 600; }
kbd {
  font: 11px var(--mono); padding: 0 4px; border-radius: 4px;
  border: 1px solid var(--line-2); background: var(--panel); color: var(--fg-2);
}

/* ---------------------------------------------------------- graph diagram */

.graph-card { padding: 14px 14px 12px; }
.g-flow { display: grid; gap: 0; }

.g-term {
  justify-self: center;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 4px 12px; border-radius: 999px;
  background: var(--panel-3); border: 1px solid var(--line);
  font-size: 12px;
}
.g-term-kind { font-size: 10.5px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--fg-3); }
.g-term code { font-size: 12px; color: var(--fg); }

.g-conn, .g-gap, .g-bypass { position: relative; min-height: 30px; }
.g-conn::before, .g-bypass::before {
  content: ""; position: absolute; left: 50%; top: 0; bottom: 6px;
  margin-left: -1px; border-left: 2px solid var(--line-2);
}
.g-bypass::before { border-left-style: dashed; }
.g-conn::after, .g-bypass::after, .g-mini::after {
  content: ""; position: absolute; left: 50%; bottom: 0; margin-left: -5px;
  border-style: solid; border-width: 6px 5px 0; border-color: var(--line-2) transparent transparent;
}
.g-var { font-size: 11px; line-height: 1; color: var(--fg-3); white-space: nowrap; }
.g-conn .g-var { position: absolute; left: calc(50% + 10px); top: 50%; transform: translateY(-60%); }
.g-bypass .g-var {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  writing-mode: vertical-rl; padding: 8px 0; background: var(--panel);
}

.g-step {
  display: flex; flex-direction: column;
  padding: 7px 8px 8px;
  border: 1px dashed var(--line-2); border-radius: 12px;
  background: var(--panel-2);
}
.g-step-name { margin: 0 2px 6px; font: 11px/1.2 var(--mono); color: var(--fg-3); overflow-wrap: anywhere; }

.g-op {
  background: var(--panel);
  border: 1px solid var(--line); border-left: 3px solid var(--cat, var(--line-2));
  border-radius: 8px;
  padding: 6px 10px 8px;
}
.g-op-head { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; min-width: 0; }
.g-op-name { font-weight: 650; font-size: 13px; white-space: nowrap; }
.g-op-fn { min-width: 0; font-size: 10.5px; color: var(--fg-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.g-params { display: flex; flex-wrap: wrap; gap: 4px 5px; margin-top: 5px; }
.g-param {
  display: inline-flex; align-items: baseline; gap: 5px;
  padding: 1px 7px; border-radius: 6px;
  background: var(--panel-3); font-size: 12px; line-height: 1.5;
}
.g-k { color: var(--fg-2); }
.g-num { font: 600 11.5px/1.5 var(--mono); font-variant-numeric: tabular-nums; color: var(--fg); white-space: nowrap; }
.g-str { font-weight: 700; color: var(--accent); }
.g-ref, .g-lit { font: 11.5px/1.5 var(--mono); color: var(--fg); }

.cat-eq { --cat: var(--c-eq); }
.cat-dyn { --cat: var(--c-dyn); }
.cat-space { --cat: var(--c-space); }
.cat-mod { --cat: var(--c-mod); }
.cat-tone { --cat: var(--c-tone); }
.cat-route { --cat: var(--c-route); }

.g-mini { position: relative; height: 16px; flex: none; }
.g-mini::before {
  content: ""; position: absolute; left: 50%; top: 0; bottom: 5px;
  margin-left: -1px; border-left: 2px solid var(--line-2);
}
.g-mini::after { border-width: 5px 4px 0; margin-left: -4px; }

.g-bus-body { display: grid; grid-template-columns: 56px minmax(0, 1fr); margin-top: 8px; }
.g-bus-body.no-dry { grid-template-columns: minmax(0, 1fr); }
.g-bus-dry { position: relative; display: flex; flex-direction: column; align-items: center; }
.g-bus-dry::before {
  content: ""; position: absolute; left: 50%; top: 22px; bottom: 0;
  margin-left: -1px; border-left: 2px solid var(--line-2);
}
.g-bus-wet { display: flex; flex-direction: column; min-width: 0; }
.g-level {
  align-self: center; position: relative; z-index: 1;
  font: 11px/1.5 var(--mono); white-space: nowrap;
  padding: 1px 8px; border-radius: 999px;
  border: 1px solid var(--line-2); background: var(--panel-2); color: var(--fg-2);
}
.g-bus-sum {
  grid-column: 1 / -1;
  display: flex; align-items: center; justify-content: center; gap: 6px;
  margin-top: 6px; padding-top: 6px;
  border-top: 2px solid var(--line-2);
  font-size: 11.5px; color: var(--fg-3);
}
.g-sum-icon {
  display: inline-grid; place-items: center; width: 18px; height: 18px; border-radius: 50%;
  border: 2px solid var(--line-2); font: 700 12px/1 var(--sans); color: var(--fg-2);
}

.g-error {
  padding: 10px 12px; border-radius: 8px;
  background: var(--warn-weak); border: 1px solid var(--warn-line); color: var(--warn);
  font-size: 13px;
}

/* ---------------------------------------------------- loader and picker */

.overlay {
  position: fixed; inset: 0; z-index: 20;
  display: grid; place-items: center; padding: 16px;
  background: var(--bg);
}
.load-card {
  width: min(560px, 100%);
  padding: 24px;
  background: var(--panel); border: 1px solid var(--line); border-radius: 14px;
  box-shadow: 0 8px 30px rgba(15, 23, 42, 0.08);
}
.load-card h2 { margin: 0 0 14px; font-size: 17px; }
.load-bar { height: 6px; border-radius: 999px; background: var(--panel-3); overflow: hidden; }
.load-bar > div { height: 100%; width: 0; background: var(--accent); transition: width 0.15s; }
.load-bar.indeterminate > div { width: 35%; animation: slide 1.1s ease-in-out infinite; }
@keyframes slide { from { transform: translateX(-100%); } to { transform: translateX(290%); } }
.load-detail { margin: 8px 0 0; font-size: 12.5px; color: var(--fg-3); font-variant-numeric: tabular-nums; }
.picker-reason { margin: 0 0 14px; color: var(--fg-2); line-height: 1.55; }
.picker-reason code { font-size: 12.5px; padding: 0 4px; border-radius: 4px; background: var(--panel-3); }
.drop {
  display: grid; gap: 4px; place-items: center;
  padding: 26px 16px; border-radius: 12px; text-align: center;
  border: 2px dashed var(--line-2); color: var(--fg-2); cursor: pointer;
}
.drop:hover, .drop.over { border-color: var(--accent); background: var(--accent-weak); }
.drop strong { color: var(--accent); }
.picker-actions { margin-top: 10px; display: flex; justify-content: flex-end; }

/* ------------------------------------------------------- sample details */

.dialog {
  width: min(680px, calc(100vw - 32px));
  max-height: calc(100vh - 48px);
  padding: 0;
  border: 1px solid var(--line); border-radius: 14px;
  background: var(--panel); color: var(--fg);
  box-shadow: 0 20px 60px rgba(15, 23, 42, 0.28);
}
.dialog[open] { display: flex; flex-direction: column; }
.dialog::backdrop { background: rgba(10, 12, 16, 0.45); }
.dialog-head {
  flex: none;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 12px 12px 12px 18px; border-bottom: 1px solid var(--line);
}
.dialog-head h2 { margin: 0; font-size: 16px; }
.dialog-head form { margin: 0; }
.dialog-body { overflow: auto; padding: 2px 18px 20px; }
.dialog-body p { margin: 12px 0 0; color: var(--fg-2); line-height: 1.55; }
.dialog-body p.muted { color: var(--fg-3); font-size: 13px; }
.dialog-body h3 {
  margin: 20px 0 8px;
  font-size: 11px; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase; color: var(--fg-3);
}
.dialog-body code { font-size: 12.5px; padding: 0 4px; border-radius: 4px; background: var(--panel-3); }
.table-wrap { overflow-x: auto; }

.tbl { width: 100%; border-collapse: collapse; font-size: 13px; }
.tbl th, .tbl td { padding: 5px 8px; text-align: left; vertical-align: middle; border-bottom: 1px solid var(--line); }
.tbl thead th { font-size: 11.5px; font-weight: 650; color: var(--fg-3); border-bottom-color: var(--line-2); white-space: nowrap; }
.tbl tbody th { font-weight: 650; vertical-align: top; white-space: nowrap; }
.tbl .n { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.tbl .pct { display: inline-block; min-width: 3.6em; margin-left: 4px; color: var(--fg-3); font-size: 12px; }
.tbl .muted-row td { color: var(--fg-3); font-style: italic; }

.toast {
  position: fixed; left: 50%; bottom: 20px; z-index: 30;
  transform: translate(-50%, 12px); opacity: 0; pointer-events: none;
  width: max-content; max-width: calc(100vw - 32px); overflow-wrap: anywhere;
  padding: 8px 14px; border-radius: 8px;
  background: var(--fg); color: var(--bg); font-size: 13px; font-weight: 600;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.18);
  transition: opacity 0.18s, transform 0.18s;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

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

@media (max-width: 1180px) {
  .cols { grid-template-columns: minmax(0, 1fr) minmax(340px, 400px); }
  .main { display: block; overflow: auto; }
  .main .pane { overflow: visible; padding-bottom: 8px; }
  .main .pane + .pane { padding-top: 4px; padding-bottom: 28px; }
}

@media (max-width: 820px) {
  .shell { height: auto; }
  .cols { display: block; }
  .main, .review { overflow: visible; }
  .review { border-left: 0; border-top: 1px solid var(--line); }
  .strip { grid-template-columns: repeat(var(--cols-narrow, 25), minmax(0, 1fr)); }
  .cell { height: 14px; }
  .src { white-space: normal; }
  .actions { width: 100%; }
  .actions .btn-primary { margin-left: auto; }
  .exbar { gap: 8px; padding: 8px 12px; }
  .pane, .review { padding: 14px 12px 20px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}