/* ROBERIN css unit converter - The New workspace (20260717a)
 * Clean input-bar-on-top + full-width all-units result grid + live size preview.
 * Gates baked in: scheme-token dark (#8), aligned rows (#11), field label separation (#34),
 * no decorative left rail (#30), lining/tabular numerals (#31), empty-state visual frame (#10),
 * reactive/no-calc-button (#17). Scope: .tn-cuc-* only. */

.tn-cuc-page {
  width: min(1180px, calc(100vw - 32px));
  margin: 0 auto;
  color: #14181d;
  -webkit-text-fill-color: currentColor;
}

.tn-cuc-page,
.tn-cuc-page * { box-sizing: border-box; }

.tn-cuc-tool {
  --cuc-ink: #1a1208;
  --cuc-muted: #5a4a30;
  --cuc-line: #b8a888;
  --cuc-soft: #ddd4be;
  --cuc-paper: #faf6ee;
  --cuc-wash: #f5efdf;
  --cuc-surface: rgba(255, 252, 244, 0.74);
  --cuc-card: rgba(255, 252, 244, 0.5);
  --cuc-accent: #c44a00;
  --cuc-accent-soft: rgba(196, 74, 0, 0.12);
  --cuc-track: rgba(184, 168, 136, 0.22);
  --cuc-btn-sec-bg: #ede6d4;
  --cuc-btn-sec-hover: #dfd4bb;
  --cuc-btn-sec-text: #1a1208;
  --cuc-btn-pri-bg: #1a1208;
  --cuc-btn-pri-hover: #c44a00;
  --cuc-btn-pri-text: #faf6ee;
  --cuc-num: "Times New Roman", Times, Georgia, "Noto Serif KR", serif;
  --cuc-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  margin: 0 auto 18px;
  border-top: 2px solid var(--cuc-ink);
  border-bottom: 1px solid var(--cuc-line);
  background: var(--cuc-paper);
  color: var(--cuc-ink);
  -webkit-text-fill-color: var(--cuc-ink);
}

/* Reset margin for all; padding/list only for lists+dl so p components (.tn-cuc-note) keep their padding (#3/#37) */
.tn-cuc-tool ul,
.tn-cuc-tool li,
.tn-cuc-tool dl,
.tn-cuc-tool dd,
.tn-cuc-tool dt,
.tn-cuc-tool p { margin: 0; }
.tn-cuc-tool ul,
.tn-cuc-tool ol,
.tn-cuc-tool li,
.tn-cuc-tool dl,
.tn-cuc-tool dd,
.tn-cuc-tool dt { padding: 0; list-style: none; }

/* Two-column workspace: input + preview left, all-units result right */
.tn-cuc-tool {
  display: grid;
  grid-template-columns: minmax(300px, 0.82fr) minmax(0, 1.18fr);
  gap: 0;
}
.tn-cuc-input-col,
.tn-cuc-result-col {
  display: grid;
  align-content: start;
  gap: 12px;
  min-width: 0;
  padding: 16px;
}
.tn-cuc-input-col { border-right: 1px solid var(--cuc-line); background: var(--cuc-wash); }

/* Pane labels */
.tn-cuc-pane-label {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border-bottom: 1px solid var(--cuc-ink);
  color: var(--cuc-muted);
  -webkit-text-fill-color: var(--cuc-muted);
  font: 700 12px/1.2 var(--cuc-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Input controls */
.tn-cuc-fields { display: grid; gap: 10px; }
.tn-cuc-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; align-items: end; }
.tn-cuc-command { display: grid; gap: 8px; }
.tn-cuc-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }

.tn-cuc-actions button {
  display: grid;
  place-items: center;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--cuc-line);
  border-radius: 0;
  background: var(--cuc-btn-sec-bg);
  color: var(--cuc-btn-sec-text);
  -webkit-text-fill-color: var(--cuc-btn-sec-text);
  font: 700 13px/1 var(--cuc-mono) !important;
  cursor: pointer;
  transition: background-color 0.15s ease;
}
.tn-cuc-actions button:hover { background: var(--cuc-btn-sec-hover); }
.tn-cuc-actions button:focus-visible { outline: 2px solid var(--cuc-accent); outline-offset: 2px; }
.tn-cuc-actions .tn-cuc-primary {
  border-color: var(--cuc-btn-pri-bg);
  background: var(--cuc-btn-pri-bg);
  color: var(--cuc-btn-pri-text);
  -webkit-text-fill-color: var(--cuc-btn-pri-text);
}
.tn-cuc-actions .tn-cuc-primary:hover { background: var(--cuc-btn-pri-hover); border-color: var(--cuc-btn-pri-hover); }

.tn-cuc-field {
  display: grid;
  gap: 5px;
  min-width: 0;
  align-content: end;
}

.tn-cuc-field-label {
  display: block;
  color: var(--cuc-muted);
  -webkit-text-fill-color: var(--cuc-muted);
  font: 700 12px/1.3 var(--cuc-mono);
  letter-spacing: 0.02em;
}

.tn-cuc-control {
  display: flex;
  align-items: center;
  height: 44px;
  padding: 0 12px;
  border: 1px solid var(--cuc-line);
  background: var(--cuc-surface);
}

.tn-cuc-control input,
.tn-cuc-control select {
  flex: 1 1 auto;
  width: 100%;
  min-width: 0;
  height: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--cuc-ink);
  -webkit-text-fill-color: var(--cuc-ink);
  font: 700 18px/1 var(--cuc-num);
  font-variant-numeric: tabular-nums lining-nums;
  font-feature-settings: "lnum" 1, "tnum" 1;
  outline: 0;
  appearance: none;
  -webkit-appearance: none;
}

.tn-cuc-control input::-webkit-outer-spin-button,
.tn-cuc-control input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.tn-cuc-control input[type="number"] { -moz-appearance: textfield; }

.tn-cuc-control input::placeholder {
  color: var(--cuc-muted);
  -webkit-text-fill-color: var(--cuc-muted);
  opacity: 0.5;
}

.tn-cuc-control select {
  cursor: pointer;
  padding-right: 22px;
  font: 700 15px/1 var(--cuc-mono);
  background-image: linear-gradient(45deg, transparent 50%, var(--cuc-muted) 50%), linear-gradient(135deg, var(--cuc-muted) 50%, transparent 50%);
  background-position: right 8px center, right 3px center;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}

.tn-cuc-control input:focus-visible,
.tn-cuc-control select:focus-visible { outline: 0; }
.tn-cuc-control:has(input:focus-visible),
.tn-cuc-control:has(select:focus-visible) { outline: 2px solid var(--cuc-accent); outline-offset: -1px; }

.tn-cuc-control--suffix { justify-content: space-between; padding-right: 0; }
.tn-cuc-control--suffix input { text-align: left; }
.tn-cuc-control--suffix b {
  display: inline-flex;
  align-items: center;
  align-self: stretch;
  padding: 0 11px;
  border-left: 1px solid var(--cuc-soft);
  color: var(--cuc-muted);
  -webkit-text-fill-color: var(--cuc-muted);
  font: 600 12px/1 var(--cuc-mono);
  white-space: nowrap;
}

/* Viewport dual input */
.tn-cuc-viewport { gap: 6px; justify-content: flex-start; }
.tn-cuc-viewport input { flex: 1 1 0; text-align: center; }
.tn-cuc-viewport span { color: var(--cuc-muted); -webkit-text-fill-color: var(--cuc-muted); font: 700 14px/1 var(--cuc-mono); }



.tn-cuc-status {
  min-height: 16px;
  color: var(--cuc-muted);
  -webkit-text-fill-color: var(--cuc-muted);
  font: 600 12px/1.4 var(--cuc-mono);
}
.tn-cuc-status[data-state="success"] { color: #2f7d54; -webkit-text-fill-color: #2f7d54; }
.tn-cuc-status[data-state="error"] { color: #b3341a; -webkit-text-fill-color: #b3341a; }



/* Live size preview */
.tn-cuc-preview {
  display: grid;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--cuc-line);
  background: var(--cuc-surface);
}
.tn-cuc-preview-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}
.tn-cuc-preview-title {
  color: var(--cuc-muted);
  -webkit-text-fill-color: var(--cuc-muted);
  font: 700 11px/1.2 var(--cuc-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.tn-cuc-preview-value {
  color: var(--cuc-accent);
  -webkit-text-fill-color: var(--cuc-accent);
  font: 700 14px/1.1 var(--cuc-num);
  font-variant-numeric: tabular-nums lining-nums;
}
.tn-cuc-ruler {
  position: relative;
  height: 40px;
  border: 1px solid var(--cuc-soft);
  background: repeating-linear-gradient(90deg, transparent 0, transparent 15px, var(--cuc-track) 15px, var(--cuc-track) 16px);
  overflow: hidden;
}
.tn-cuc-ruler-bar {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 0;
  background: var(--cuc-accent-soft);
  border-right: 2px solid var(--cuc-accent);
  transition: none;
}
.tn-cuc-ruler-bar.is-clamped { border-right: 0; background: repeating-linear-gradient(90deg, var(--cuc-accent-soft) 0, var(--cuc-accent-soft) 8px, var(--cuc-accent) 8px, var(--cuc-accent) 10px); }
.tn-cuc-ruler-cap {
  position: absolute;
  top: 50%; transform: translateY(-50%);
  padding: 1px 6px;
  background: var(--cuc-accent);
  color: var(--cuc-btn-pri-text);
  -webkit-text-fill-color: var(--cuc-btn-pri-text);
  font: 700 10px/1.4 var(--cuc-mono);
  white-space: nowrap;
}
.tn-cuc-sample {
  display: flex;
  align-items: baseline;
  gap: 12px;
  min-height: 44px;
  padding: 4px 2px;
  overflow: hidden;
}
.tn-cuc-sample-text {
  color: var(--cuc-ink);
  -webkit-text-fill-color: var(--cuc-ink);
  line-height: 1;
  white-space: nowrap;
}
.tn-cuc-sample-note {
  color: var(--cuc-muted);
  -webkit-text-fill-color: var(--cuc-muted);
  font: 500 11px/1.4 var(--cuc-mono);
}

/* All-units result grid */
.tn-cuc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 8px;
}
.tn-cuc-unit {
  position: relative;
  display: grid;
  gap: 2px;
  padding: 10px 12px;
  border: 1px solid var(--cuc-soft);
  background: var(--cuc-card);
}
.tn-cuc-unit.is-source {
  border-color: var(--cuc-accent);
  background: var(--cuc-accent-soft);
  box-shadow: inset 0 -2px 0 var(--cuc-accent);
}
.tn-cuc-unit-name {
  color: var(--cuc-muted);
  -webkit-text-fill-color: var(--cuc-muted);
  font: 700 11px/1.2 var(--cuc-mono);
  letter-spacing: 0.04em;
}
.tn-cuc-unit-val {
  color: var(--cuc-ink);
  -webkit-text-fill-color: var(--cuc-ink);
  font: 700 clamp(19px, 2.4vw, 23px)/1.1 var(--cuc-num);
  font-variant-numeric: tabular-nums lining-nums;
  font-feature-settings: "lnum" 1, "tnum" 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tn-cuc-unit-copy {
  position: absolute;
  top: 8px; right: 8px;
  width: 24px; height: 24px;
  display: grid;
  place-items: center;
  border: 1px solid var(--cuc-soft);
  border-radius: 0;
  background: var(--cuc-surface);
  color: var(--cuc-muted);
  -webkit-text-fill-color: var(--cuc-muted);
  font: 700 11px/1 var(--cuc-mono) !important;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.12s ease, background-color 0.12s ease;
}
.tn-cuc-unit:hover .tn-cuc-unit-copy,
.tn-cuc-unit-copy:focus-visible { opacity: 1; }
.tn-cuc-unit-copy:hover { background: var(--cuc-btn-sec-hover); }
.tn-cuc-unit-copy.is-done { color: #2f7d54; -webkit-text-fill-color: #2f7d54; border-color: #2f7d54; opacity: 1; }

.tn-cuc-note {
  padding: 10px 12px;
  border: 1px solid var(--cuc-soft);
  background: var(--cuc-card);
  color: var(--cuc-ink);
  -webkit-text-fill-color: var(--cuc-ink);
  font: 500 12.5px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans KR", sans-serif;
}

/* Mobile */
@media (max-width: 720px) {
  .tn-cuc-tool { grid-template-columns: minmax(0, 1fr); }
  .tn-cuc-input-col { border-right: 0; border-bottom: 1px solid var(--cuc-line); }
  .tn-cuc-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 460px) {
  .tn-cuc-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* Dark / inverse / auto-dark (#8) */
body:is([data-scheme="dark"], [data-scheme="inverse"], [data-scheme="auto"][data-d="dark"], [data-scheme="auto"][data-l="dark"]):not([data-scheme="light"]) .tn-cuc-tool,
html[data-scheme="dark"] body:not([data-scheme="light"]) .tn-cuc-tool,
html[data-scheme="inverse"] body:not([data-scheme="light"]) .tn-cuc-tool {
  --cuc-ink: #efe6d2;
  --cuc-muted: #c3b492;
  --cuc-line: #6f6047;
  --cuc-soft: #574a37;
  --cuc-paper: #241d12;
  --cuc-wash: #241d12;
  --cuc-surface: #322a1a;
  --cuc-card: #2c2517;
  --cuc-accent: #e8823f;
  --cuc-accent-soft: rgba(232, 130, 63, 0.18);
  --cuc-track: rgba(120, 104, 74, 0.3);
  --cuc-btn-sec-bg: #33291a;
  --cuc-btn-sec-hover: #453720;
  --cuc-btn-sec-text: #efe6d2;
  --cuc-btn-pri-bg: #e8823f;
  --cuc-btn-pri-hover: #f2a061;
  --cuc-btn-pri-text: #241206;
  color: var(--cuc-ink);
  -webkit-text-fill-color: var(--cuc-ink);
}

@media (prefers-color-scheme: dark) {
  body[data-scheme="auto"]:not([data-scheme="light"]) .tn-cuc-tool {
    --cuc-ink: #efe6d2;
    --cuc-muted: #c3b492;
    --cuc-line: #6f6047;
    --cuc-soft: #574a37;
    --cuc-paper: #241d12;
    --cuc-wash: #241d12;
    --cuc-surface: #322a1a;
    --cuc-card: #2c2517;
    --cuc-accent: #e8823f;
    --cuc-accent-soft: rgba(232, 130, 63, 0.18);
    --cuc-track: rgba(120, 104, 74, 0.3);
    --cuc-btn-sec-bg: #33291a;
    --cuc-btn-sec-hover: #453720;
    --cuc-btn-sec-text: #efe6d2;
    --cuc-btn-pri-bg: #e8823f;
    --cuc-btn-pri-hover: #f2a061;
    --cuc-btn-pri-text: #241206;
    color: var(--cuc-ink);
    -webkit-text-fill-color: var(--cuc-ink);
  }
}

/* Force inputs/selects transparent (beat global dark-hardening input bg -> uniform control surface) */
.tn-cuc-page #cucValue,
.tn-cuc-page #cucRoot,
.tn-cuc-page #cucElem,
.tn-cuc-page #cucVpW,
.tn-cuc-page #cucVpH,
.tn-cuc-page #cucFromUnit,
.tn-cuc-page #cucValue:focus,
.tn-cuc-page #cucRoot:focus,
.tn-cuc-page #cucElem:focus,
.tn-cuc-page #cucVpW:focus,
.tn-cuc-page #cucVpH:focus,
.tn-cuc-page #cucFromUnit:focus {
  background: transparent !important;
  background-color: transparent !important;
}