/* ROBERIN world-meeting-time-calculator (세계 회의 시간 계산기) - The New workspace (20260714a)
 * Scope: .tn-wmt-* only. New IA (no completed timezone family reference): input-left
 * (date/time/base/add) + result rows + full-width 24h overlap timeline.
 * Gates: input-left (#3), no Calculate button/realtime (#17), container gap (#22/#37),
 * uniform 1px borders / no decorative rail (#11/#30), field label separation (#34),
 * flipped dark tokens with text-fill (#8/#14), distinct accessible category tokens
 * for work/edge/night bands (#27), element reset limited to li/ul/ol/dd (#37). */

.tn-wmt-page {
  width: min(1180px, calc(100vw - 32px));
  margin: 0 auto;
  color: #1a1208;
  -webkit-text-fill-color: currentColor;
}
.tn-wmt-page,
.tn-wmt-page * { box-sizing: border-box; }

.tn-wmt-tool {
  --wmt-ink: #1a1208;
  --wmt-muted: #5a4a30;
  --wmt-line: #b8a888;
  --wmt-soft: #cbb692;
  --wmt-paper: #fffdf8;
  --wmt-wash: #f6eddc;
  --wmt-surface: #fffdf8;
  --wmt-card: #fbf4e6;
  --wmt-band-bg: #f9f1e2;
  --wmt-track: #e7dcc4;
  --wmt-accent: #2f6d92;
  --wmt-accent-soft: #cfe0ec;
  --wmt-btn-sec-bg: #f2e7d3;
  --wmt-btn-sec-hover: #e7d8bd;
  --wmt-btn-sec-text: #3a2c18;
  --wmt-work: #2f7a44;
  --wmt-work-bg: #e4efe0;
  --wmt-edge: #96690f;
  --wmt-edge-bg: #f2e9d3;
  --wmt-night: #4f5c86;
  --wmt-night-bg: #e7e9f1;
  color: var(--wmt-ink);
  -webkit-text-fill-color: var(--wmt-ink);
  font-family: inherit;
  display: grid;
  gap: 16px;
}

.tn-wmt-tool ul,
.tn-wmt-tool ol,
.tn-wmt-tool li,
.tn-wmt-tool dd { margin: 0; padding: 0; list-style: none; }

/* ---- workspace split ---- */
.tn-wmt-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 0;
  border: 1px solid var(--wmt-line);
  background: var(--wmt-surface);
}
.tn-wmt-input,
.tn-wmt-result {
  display: grid;
  align-content: start;
  gap: 14px;
  padding: 16px;
  min-width: 0;
}
.tn-wmt-input {
  border-right: 1px solid var(--wmt-line);
  background: var(--wmt-wash);
}
.tn-wmt-pane-label {
  margin: 0;
  font: 700 12px/1 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--wmt-muted);
  -webkit-text-fill-color: var(--wmt-muted);
}
.tn-wmt-band-label {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 8px;
  font: 700 11px/1.3 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--wmt-muted);
  -webkit-text-fill-color: var(--wmt-muted);
}
.tn-wmt-band-label small {
  font: 500 11px/1.3 inherit;
  letter-spacing: 0;
  text-transform: none;
  color: var(--wmt-muted);
  -webkit-text-fill-color: var(--wmt-muted);
}

/* ---- input fields ---- */
.tn-wmt-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.tn-wmt-field {
  display: grid;
  gap: 5px;
  align-content: start;
  min-width: 0;
}
.tn-wmt-field--full { grid-column: 1 / -1; }
.tn-wmt-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--wmt-muted);
  -webkit-text-fill-color: var(--wmt-muted);
}
.tn-wmt-hint {
  font-size: 11px;
  line-height: 1.4;
  color: var(--wmt-muted);
  -webkit-text-fill-color: var(--wmt-muted);
}
.tn-wmt-control {
  display: flex;
  align-items: stretch;
  min-width: 0;
  height: 36px;
  border: 1px solid var(--wmt-line);
  background: var(--wmt-paper);
}
.tn-wmt-control input {
  flex: 1 1 auto;
  width: 100%;
  min-width: 0;
  padding: 0 10px;
  border: 0;
  background: transparent;
  color: var(--wmt-ink);
  -webkit-text-fill-color: var(--wmt-ink);
  font: 600 14px/1 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}
.tn-wmt-control input:focus-visible {
  outline: 2px solid var(--wmt-accent);
  outline-offset: -2px;
}
.tn-wmt-control input::-webkit-calendar-picker-indicator { cursor: pointer; opacity: 0.6; }
.tn-wmt-control--select select {
  flex: 1 1 auto;
  width: 100%;
  min-width: 0;
  height: 100%;
  padding: 0 32px 0 10px;
  border: 0;
  background: transparent;
  color: var(--wmt-ink);
  -webkit-text-fill-color: var(--wmt-ink);
  font: 600 13px/1 inherit;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' fill='none' stroke='%235a4a30' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
}
.tn-wmt-control--select select:focus-visible {
  outline: 2px solid var(--wmt-accent);
  outline-offset: -2px;
}

/* ---- participants chips ---- */
.tn-wmt-participants { display: grid; gap: 8px; }
.tn-wmt-part-count {
  font-weight: 700;
  color: var(--wmt-accent);
  -webkit-text-fill-color: var(--wmt-accent);
}
.tn-wmt-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tn-wmt-chip-empty {
  font-size: 12px;
  line-height: 1.5;
  color: var(--wmt-muted);
  -webkit-text-fill-color: var(--wmt-muted);
}
.tn-wmt-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 6px 5px 9px;
  border: 1px solid var(--wmt-soft);
  background: var(--wmt-card);
  font-size: 12px;
  color: var(--wmt-ink);
  -webkit-text-fill-color: var(--wmt-ink);
}
.tn-wmt-chip b { font-style: normal; font-weight: 400; -webkit-text-fill-color: initial; }
.tn-wmt-chip-remove {
  display: inline-grid;
  place-content: center;
  width: 18px;
  height: 18px;
  border: 0;
  background: transparent;
  color: var(--wmt-muted);
  -webkit-text-fill-color: var(--wmt-muted);
  font: 600 15px/1 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  cursor: pointer;
}
.tn-wmt-chip-remove:hover { color: var(--wmt-accent); -webkit-text-fill-color: var(--wmt-accent); }
.tn-wmt-chip-remove:focus-visible { outline: 2px solid var(--wmt-accent); outline-offset: 2px; }

/* ---- command / actions ---- */
.tn-wmt-command { display: grid; gap: 8px; }
.tn-wmt-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}
.tn-wmt-secondary {
  height: 38px;
  border: 1px solid var(--wmt-line);
  background: var(--wmt-btn-sec-bg);
  color: var(--wmt-btn-sec-text);
  -webkit-text-fill-color: var(--wmt-btn-sec-text);
  font: 700 13px/1 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.tn-wmt-secondary:hover { background: var(--wmt-btn-sec-hover); }
.tn-wmt-secondary:focus-visible { outline: 2px solid var(--wmt-accent); outline-offset: 2px; }
.tn-wmt-primary {
  border-color: var(--wmt-accent);
  background: var(--wmt-accent);
  color: #fffdf8;
  -webkit-text-fill-color: #fffdf8;
}
.tn-wmt-primary:hover { background: #27587a; }

.tn-wmt-status {
  margin: 0;
  padding: 10px 12px;
  border: 1px solid var(--wmt-soft);
  background: var(--wmt-band-bg);
  font-size: 12px;
  line-height: 1.5;
  color: var(--wmt-muted);
  -webkit-text-fill-color: var(--wmt-muted);
}

/* ---- result main ---- */
.tn-wmt-main {
  display: grid;
  gap: 4px;
  padding: 14px;
  border: 1px solid var(--wmt-line);
  background: var(--wmt-card);
}
.tn-wmt-main > span {
  font-size: 12px;
  font-weight: 600;
  color: var(--wmt-muted);
  -webkit-text-fill-color: var(--wmt-muted);
}
.tn-wmt-main strong {
  font: 800 clamp(24px, 4.6vw, 32px)/1.15 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  color: var(--wmt-ink);
  -webkit-text-fill-color: var(--wmt-ink);
  word-break: keep-all;
}
.tn-wmt-main-sub {
  font-size: 12px;
  font-style: normal;
  line-height: 1.4;
  color: var(--wmt-muted);
  -webkit-text-fill-color: var(--wmt-muted);
}

/* ---- result city rows ---- */
.tn-wmt-cities { display: grid; gap: 8px; }
.tn-wmt-city {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 6px 10px;
  padding: 9px 12px;
  border: 1px solid var(--wmt-soft);
  background: var(--wmt-card);
}
.tn-wmt-city.is-base { border-color: var(--wmt-accent); background: var(--wmt-accent-soft); }
.tn-wmt-city-flag { font-size: 16px; line-height: 1; -webkit-text-fill-color: initial; }
.tn-wmt-city-name {
  min-width: 0;
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--wmt-ink);
  -webkit-text-fill-color: var(--wmt-ink);
  word-break: keep-all;
}
.tn-wmt-city-tag {
  font: 700 10px/1 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  letter-spacing: 0.04em;
  padding: 2px 5px;
  border: 1px solid var(--wmt-accent);
  color: var(--wmt-accent);
  -webkit-text-fill-color: var(--wmt-accent);
}
.tn-wmt-city-time {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font: 700 14px/1.1 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  color: var(--wmt-ink);
  -webkit-text-fill-color: var(--wmt-ink);
  white-space: nowrap;
}
.tn-wmt-city-day {
  font: 600 11px/1 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  color: var(--wmt-muted);
  -webkit-text-fill-color: var(--wmt-muted);
}
.tn-wmt-city-badge {
  justify-self: end;
  font: 700 11px/1 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  padding: 4px 7px;
  border: 1px solid currentColor;
  white-space: nowrap;
}
.tn-wmt-city-badge.is-work { color: var(--wmt-work); -webkit-text-fill-color: var(--wmt-work); background: var(--wmt-work-bg); }
.tn-wmt-city-badge.is-edge { color: var(--wmt-edge); -webkit-text-fill-color: var(--wmt-edge); background: var(--wmt-edge-bg); }
.tn-wmt-city-badge.is-night { color: var(--wmt-night); -webkit-text-fill-color: var(--wmt-night); background: var(--wmt-night-bg); }

/* ---- recommended chips ---- */
.tn-wmt-reco { display: grid; gap: 8px; }
.tn-wmt-reco-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.tn-wmt-reco-none {
  margin: 0;
  padding: 8px 10px;
  border: 1px solid var(--wmt-soft);
  background: var(--wmt-band-bg);
  font-size: 12px;
  line-height: 1.5;
  color: var(--wmt-muted);
  -webkit-text-fill-color: var(--wmt-muted);
}
.tn-wmt-reco-chip {
  display: grid;
  gap: 2px;
  justify-items: start;
  padding: 7px 12px;
  border: 1px solid var(--wmt-line);
  background: var(--wmt-paper);
  cursor: pointer;
  text-align: left;
}
.tn-wmt-reco-chip b {
  font: 700 14px/1.1 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  color: var(--wmt-ink);
  -webkit-text-fill-color: var(--wmt-ink);
}
.tn-wmt-reco-chip span {
  font: 600 11px/1 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  color: var(--wmt-muted);
  -webkit-text-fill-color: var(--wmt-muted);
}
.tn-wmt-reco-chip:hover { border-color: var(--wmt-accent); background: var(--wmt-accent-soft); }
.tn-wmt-reco-chip.is-active { border-color: var(--wmt-accent); background: var(--wmt-accent-soft); }
.tn-wmt-reco-chip:focus-visible { outline: 2px solid var(--wmt-accent); outline-offset: 2px; }

.tn-wmt-disclaimer {
  margin: 2px 0 0;
  padding-top: 10px;
  border-top: 1px solid var(--wmt-track);
  font-size: 11px;
  line-height: 1.5;
  color: var(--wmt-muted);
  -webkit-text-fill-color: var(--wmt-muted);
}

/* ---- timeline ---- */
.tn-wmt-timeline {
  display: grid;
  gap: 12px;
  padding: 16px;
  border: 1px solid var(--wmt-line);
  background: var(--wmt-surface);
}
.tn-wmt-timeline-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 16px;
}
.tn-wmt-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
}
.tn-wmt-legend li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--wmt-muted);
  -webkit-text-fill-color: var(--wmt-muted);
}
.tn-wmt-legend li::before {
  content: "";
  width: 12px;
  height: 12px;
  border: 1px solid currentColor;
}
.tn-wmt-legend li.is-work::before { background: var(--wmt-work-bg); color: var(--wmt-work); }
.tn-wmt-legend li.is-edge::before { background: var(--wmt-edge-bg); color: var(--wmt-edge); }
.tn-wmt-legend li.is-night::before { background: var(--wmt-night-bg); color: var(--wmt-night); }

.tn-wmt-grid { display: grid; gap: 4px; }
.tn-wmt-row {
  display: grid;
  grid-template-columns: var(--wmt-rowlabel, 132px) minmax(0, 1fr);
  align-items: center;
  gap: 8px;
}
.tn-wmt-rowlabel {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  font-size: 12px;
  font-weight: 600;
  color: var(--wmt-ink);
  -webkit-text-fill-color: var(--wmt-ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tn-wmt-rowlabel b { font-style: normal; font-weight: 400; -webkit-text-fill-color: initial; }
.tn-wmt-row.is-base .tn-wmt-rowlabel { color: var(--wmt-accent); -webkit-text-fill-color: var(--wmt-accent); }
.tn-wmt-cells {
  display: grid;
  grid-template-columns: repeat(24, minmax(0, 1fr));
  gap: 1px;
  min-width: 0;
}
.tn-wmt-hour {
  border: 0;
  padding: 3px 0 4px;
  background: var(--wmt-band-bg);
  color: var(--wmt-muted);
  -webkit-text-fill-color: var(--wmt-muted);
  font: 600 9px/1 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  text-align: center;
  cursor: pointer;
}
.tn-wmt-hour:hover { background: var(--wmt-accent-soft); color: var(--wmt-accent); -webkit-text-fill-color: var(--wmt-accent); }
.tn-wmt-hour:focus-visible { outline: 2px solid var(--wmt-accent); outline-offset: -2px; }
.tn-wmt-hour.is-selected {
  background: var(--wmt-accent);
  color: #fffdf8;
  -webkit-text-fill-color: #fffdf8;
}
.tn-wmt-cell {
  height: 20px;
  border: 1px solid transparent;
}
.tn-wmt-cell.is-work { background: var(--wmt-work-bg); }
.tn-wmt-cell.is-edge { background: var(--wmt-edge-bg); }
.tn-wmt-cell.is-night { background: var(--wmt-night-bg); }
.tn-wmt-cell.is-selected { border-color: var(--wmt-accent); }
.tn-wmt-row.is-base .tn-wmt-cell.is-selected { border-color: var(--wmt-accent); }

/* ---- mobile ---- */
@media (max-width: 720px) {
  .tn-wmt-workspace { grid-template-columns: minmax(0, 1fr); }
  .tn-wmt-input { border-right: 0; border-bottom: 1px solid var(--wmt-line); }
}
@media (max-width: 440px) {
  /* Date + time stay 2-up (short inputs fit); base/add remain full-width. */
  .tn-wmt-row { --wmt-rowlabel: 88px; gap: 6px; }
  .tn-wmt-city { grid-template-columns: auto minmax(0, 1fr) auto; }
  .tn-wmt-city-badge { grid-column: 1 / -1; justify-self: start; }
}

/* ---- Dark / inverse / auto-dark (#8/#14) ---- */
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-wmt-tool,
html[data-scheme="dark"] body:not([data-scheme="light"]) .tn-wmt-tool,
html[data-scheme="inverse"] body:not([data-scheme="light"]) .tn-wmt-tool {
  --wmt-ink: #efe6d2;
  --wmt-muted: #c3b492;
  --wmt-line: #6f6047;
  --wmt-soft: #574a37;
  --wmt-paper: #241d12;
  --wmt-wash: #221b11;
  --wmt-surface: #1f1810;
  --wmt-card: rgba(58, 48, 32, 0.5);
  --wmt-band-bg: rgba(58, 48, 32, 0.36);
  --wmt-track: rgba(120, 104, 74, 0.3);
  --wmt-accent: #79b2da;
  --wmt-accent-soft: rgba(121, 178, 218, 0.24);
  --wmt-btn-sec-bg: #33291a;
  --wmt-btn-sec-hover: #453720;
  --wmt-btn-sec-text: #efe6d2;
  --wmt-work: #8ecb9d;
  --wmt-work-bg: rgba(90, 150, 105, 0.24);
  --wmt-edge: #e0b25a;
  --wmt-edge-bg: rgba(160, 125, 55, 0.26);
  --wmt-night: #a6b2d6;
  --wmt-night-bg: rgba(95, 112, 160, 0.28);
  color: var(--wmt-ink);
  -webkit-text-fill-color: var(--wmt-ink);
}
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-wmt-primary,
html[data-scheme="dark"] body:not([data-scheme="light"]) .tn-wmt-primary,
html[data-scheme="inverse"] body:not([data-scheme="light"]) .tn-wmt-primary {
  color: #1f1810;
  -webkit-text-fill-color: #1f1810;
}
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-wmt-primary:hover,
html[data-scheme="dark"] body:not([data-scheme="light"]) .tn-wmt-primary:hover,
html[data-scheme="inverse"] body:not([data-scheme="light"]) .tn-wmt-primary:hover { background: #93c1e2; }
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-wmt-hour.is-selected,
html[data-scheme="dark"] body:not([data-scheme="light"]) .tn-wmt-hour.is-selected,
html[data-scheme="inverse"] body:not([data-scheme="light"]) .tn-wmt-hour.is-selected {
  color: #1f1810;
  -webkit-text-fill-color: #1f1810;
}
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-wmt-control--select select,
html[data-scheme="dark"] body:not([data-scheme="light"]) .tn-wmt-control--select select,
html[data-scheme="inverse"] body:not([data-scheme="light"]) .tn-wmt-control--select select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' fill='none' stroke='%23c3b492' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}

@media (prefers-color-scheme: dark) {
  body[data-scheme="auto"]:not([data-scheme="light"]) .tn-wmt-tool {
    --wmt-ink: #efe6d2;
    --wmt-muted: #c3b492;
    --wmt-line: #6f6047;
    --wmt-soft: #574a37;
    --wmt-paper: #241d12;
    --wmt-wash: #221b11;
    --wmt-surface: #1f1810;
    --wmt-card: rgba(58, 48, 32, 0.5);
    --wmt-band-bg: rgba(58, 48, 32, 0.36);
    --wmt-track: rgba(120, 104, 74, 0.3);
    --wmt-accent: #79b2da;
    --wmt-accent-soft: rgba(121, 178, 218, 0.24);
    --wmt-btn-sec-bg: #33291a;
    --wmt-btn-sec-hover: #453720;
    --wmt-btn-sec-text: #efe6d2;
    --wmt-work: #8ecb9d;
    --wmt-work-bg: rgba(90, 150, 105, 0.24);
    --wmt-edge: #e0b25a;
    --wmt-edge-bg: rgba(160, 125, 55, 0.26);
    --wmt-night: #a6b2d6;
    --wmt-night-bg: rgba(95, 112, 160, 0.28);
    color: var(--wmt-ink);
    -webkit-text-fill-color: var(--wmt-ink);
  }
  body[data-scheme="auto"]:not([data-scheme="light"]) .tn-wmt-primary { color: #1f1810; -webkit-text-fill-color: #1f1810; }
  body[data-scheme="auto"]:not([data-scheme="light"]) .tn-wmt-primary:hover { background: #93c1e2; }
  body[data-scheme="auto"]:not([data-scheme="light"]) .tn-wmt-hour.is-selected { color: #1f1810; -webkit-text-fill-color: #1f1810; }
  body[data-scheme="auto"]:not([data-scheme="light"]) .tn-wmt-control--select select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' fill='none' stroke='%23c3b492' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  }
}