/* ROBERIN 날짜 계산기 - The New workspace (20260717a)
 * Scope: .tn-dc-* only. Hero / design-note / meta / ads / article skeleton are owned by
 * the globally enqueued shared The New CSS. Warm newsprint palette (design system §5).
 * All surfaces use scheme-flipping tokens (dark flip #8). Spacing via container gap so the
 * element reset can't eat it (#3/#37). No decorative left rails (#30). Big result uses
 * tabular lining numerals + nowrap (#31). Result skeleton is always visible (#10). */

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

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

.tn-dc-tool {
  --dc-ink: #1a1208;
  --dc-muted: #5a4a30;
  --dc-line: #b8a888;
  --dc-soft: #ddd4be;
  --dc-paper: #faf6ee;
  --dc-wash: #f5efdf;
  --dc-surface: rgba(255, 252, 244, 0.74);
  --dc-card: rgba(255, 252, 244, 0.5);
  --dc-chip-bg: rgba(255, 252, 244, 0.4);
  --dc-accent: #c44a00;
  --dc-on-accent: #fbf4e8;
  --dc-btn-sec-bg: #ede6d4;
  --dc-btn-sec-hover: #dfd4bb;
  --dc-btn-sec-text: #1a1208;
  margin: 0 auto 18px;
  border-top: 2px solid var(--dc-ink);
  border-bottom: 1px solid var(--dc-line);
  background: linear-gradient(180deg, var(--dc-paper), var(--dc-wash));
  color: var(--dc-ink);
  -webkit-text-fill-color: var(--dc-ink);
  color-scheme: light;
}

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

.tn-dc-tool dl,
.tn-dc-tool dt,
.tn-dc-tool p {
  margin: 0;
  padding: 0;
}

.tn-dc-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.98fr) minmax(0, 1.02fr);
  gap: 0;
  min-height: 380px;
}

.tn-dc-input,
.tn-dc-result {
  display: grid;
  align-content: start;
  gap: 14px;
  min-width: 0;
  padding: 18px;
}

.tn-dc-input {
  border-right: 1px solid var(--dc-line);
}

.tn-dc-pane-label {
  display: inline-flex;
  align-items: center;
  justify-self: start;
  min-height: 26px;
  margin: 0;
  border-bottom: 1px solid var(--dc-ink);
  color: var(--dc-muted);
  -webkit-text-fill-color: var(--dc-muted);
  font: 700 12px/1.2 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ---- Mode segmented toggle ---- */
.tn-dc-modes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  border: 1px solid var(--dc-line);
  background: var(--dc-chip-bg);
}

.tn-dc-mode {
  min-height: 38px;
  padding: 0 10px;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--dc-muted);
  -webkit-text-fill-color: var(--dc-muted);
  font: 700 13px/1 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.tn-dc-mode + .tn-dc-mode {
  border-left: 1px solid var(--dc-line);
}

.tn-dc-mode.is-active {
  background: var(--dc-accent);
  color: var(--dc-on-accent);
  -webkit-text-fill-color: var(--dc-on-accent);
}

.tn-dc-mode:focus-visible {
  outline: 2px solid var(--dc-accent);
  outline-offset: -3px;
}

/* ---- Panels (mode-switched) ---- */
.tn-dc-panel {
  display: grid;
  gap: 12px;
}

.tn-dc-tool[data-mode="diff"] .tn-dc-panel[data-panel="shift"],
.tn-dc-tool[data-mode="shift"] .tn-dc-panel[data-panel="diff"] {
  display: none;
}

.tn-dc-tool[data-mode="diff"] .tn-dc-metrics[data-for="shift"],
.tn-dc-tool[data-mode="shift"] .tn-dc-metrics[data-for="diff"] {
  display: none;
}

/* ---- Fields ---- */
.tn-dc-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.tn-dc-fields--single {
  grid-template-columns: minmax(0, 1fr);
}

.tn-dc-field {
  display: grid;
  gap: 5px;
  min-width: 0;
  margin: 0;
  border: 0;
  background: none;
}

.tn-dc-field > span {
  padding: 0;
  color: var(--dc-muted);
  -webkit-text-fill-color: var(--dc-muted);
  font: 700 12px/1.3 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  letter-spacing: 0.02em;
}

.tn-dc-control {
  display: flex;
  align-items: stretch;
  min-width: 0;
  height: 40px;
  border: 1px solid var(--dc-line);
  background: var(--dc-surface);
}

.tn-dc-control input,
.tn-dc-control select {
  flex: 1 1 auto;
  width: 100%;
  min-width: 0;
  height: 100%;
  padding: 0 10px;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--dc-ink);
  -webkit-text-fill-color: var(--dc-ink);
  font: 700 15px/1 Georgia, "Times New Roman", serif;
  outline: 0;
  appearance: none;
  -webkit-appearance: none;
}

.tn-dc-control input[type="date"] {
  font: 700 14px/1 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.tn-dc-control input[inputmode="numeric"] {
  font: 700 15px/1 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.tn-dc-control input::placeholder {
  color: var(--dc-muted);
  opacity: 0.55;
  -webkit-text-fill-color: var(--dc-muted);
}

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

.tn-dc-control input::-webkit-calendar-picker-indicator {
  cursor: pointer;
  opacity: 0.7;
}

/* Select with visible chevron affordance (#33) */
.tn-dc-control--select {
  position: relative;
}

.tn-dc-control--select select {
  padding-right: 30px;
  cursor: pointer;
}

.tn-dc-control--select::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 12px;
  width: 8px;
  height: 8px;
  border-right: 1.5px solid var(--dc-muted);
  border-bottom: 1.5px solid var(--dc-muted);
  transform: translateY(-70%) rotate(45deg);
  pointer-events: none;
}

/* ---- Shift row: direction toggle + amount + unit ---- */
.tn-dc-shiftrow {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) minmax(0, 1.05fr);
  align-items: end;
  gap: 10px;
}

.tn-dc-dirgroup {
  display: grid;
  gap: 5px;
}

.tn-dc-dirgroup > span {
  color: var(--dc-muted);
  -webkit-text-fill-color: var(--dc-muted);
  font: 700 12px/1.3 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.tn-dc-dirs {
  display: grid;
  grid-template-columns: repeat(2, 40px);
  border: 1px solid var(--dc-line);
  background: var(--dc-chip-bg);
}

.tn-dc-dir {
  height: 40px;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--dc-muted);
  -webkit-text-fill-color: var(--dc-muted);
  font: 700 18px/1 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.tn-dc-dir + .tn-dc-dir {
  border-left: 1px solid var(--dc-line);
}

.tn-dc-dir.is-active {
  background: var(--dc-accent);
  color: var(--dc-on-accent);
  -webkit-text-fill-color: var(--dc-on-accent);
}

.tn-dc-dir:focus-visible {
  outline: 2px solid var(--dc-accent);
  outline-offset: -3px;
}

/* ---- Options: custom flat checkboxes (#2 native control custom) ---- */
.tn-dc-options {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
}

.tn-dc-check {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 20px;
  margin: 0;
  color: var(--dc-ink);
  -webkit-text-fill-color: var(--dc-ink);
  font: 600 13px/20px ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  cursor: pointer;
}

.tn-dc-check input {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin: 0;
  border: 1px solid var(--dc-line);
  border-radius: 0;
  background: var(--dc-surface);
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  position: relative;
}

.tn-dc-check input:checked {
  border-color: var(--dc-accent);
  background: var(--dc-accent);
}

.tn-dc-check input:checked::before {
  content: "";
  position: absolute;
  top: 3px;
  left: 6px;
  width: 5px;
  height: 9px;
  border-right: 2px solid var(--dc-on-accent);
  border-bottom: 2px solid var(--dc-on-accent);
  transform: rotate(45deg);
}

.tn-dc-check input:focus-visible {
  outline: 2px solid var(--dc-accent);
  outline-offset: 2px;
}

/* ---- Preset chips ---- */
.tn-dc-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tn-dc-preset {
  flex: 0 0 auto;
  min-height: 30px;
  padding: 0 11px;
  border: 1px solid var(--dc-line);
  border-radius: 0;
  background: var(--dc-chip-bg);
  color: var(--dc-ink);
  -webkit-text-fill-color: var(--dc-ink);
  font: 700 12px/1 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.tn-dc-preset:hover {
  background: var(--dc-btn-sec-hover);
}

.tn-dc-preset:focus-visible {
  outline: 2px solid var(--dc-accent);
  outline-offset: 2px;
}

/* ---- Command row ---- */
.tn-dc-command {
  display: grid;
  gap: 8px;
}

.tn-dc-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.tn-dc-actions > button {
  display: grid;
  place-items: center;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--dc-line);
  border-radius: 0;
  background: var(--dc-btn-sec-bg);
  color: var(--dc-btn-sec-text);
  -webkit-text-fill-color: var(--dc-btn-sec-text);
  font: 700 13px/1 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace !important;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.tn-dc-actions > button:hover {
  background: var(--dc-btn-sec-hover);
}

.tn-dc-actions > button:focus-visible {
  outline: 2px solid var(--dc-accent);
  outline-offset: 2px;
}

.tn-dc-status {
  min-height: 18px;
  color: var(--dc-muted);
  -webkit-text-fill-color: var(--dc-muted);
  font: 600 12px/1.4 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.tn-dc-status[data-state="error"] {
  color: #b3341a;
  -webkit-text-fill-color: #b3341a;
}

.tn-dc-status[data-state="success"] {
  color: #3f6d2f;
  -webkit-text-fill-color: #3f6d2f;
}

/* ---- Result pane ---- */
.tn-dc-main {
  display: grid;
  gap: 4px;
  padding: 14px;
  border: 1px solid var(--dc-line);
  background: var(--dc-surface);
}

.tn-dc-main > span {
  color: var(--dc-muted);
  -webkit-text-fill-color: var(--dc-muted);
  font: 700 12px/1.2 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.tn-dc-main > strong {
  font: 700 clamp(28px, 5.6vw, 42px)/1.12 Georgia, "Times New Roman", serif;
  color: var(--dc-ink);
  -webkit-text-fill-color: var(--dc-ink);
  font-variant-numeric: tabular-nums lining-nums;
  letter-spacing: 0;
  white-space: nowrap;
  overflow-wrap: normal;
}

.tn-dc-main > em {
  min-height: 17px;
  color: var(--dc-muted);
  -webkit-text-fill-color: var(--dc-muted);
  font: 600 13px/1.3 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-style: normal;
}

.tn-dc-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.tn-dc-metrics > div {
  display: grid;
  gap: 3px;
  padding: 9px 11px;
  border: 1px solid var(--dc-soft);
  background: var(--dc-card);
}

.tn-dc-metrics dt {
  color: var(--dc-muted);
  -webkit-text-fill-color: var(--dc-muted);
  font: 700 11px/1.2 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  letter-spacing: 0.02em;
}

.tn-dc-metrics dd {
  color: var(--dc-ink);
  -webkit-text-fill-color: var(--dc-ink);
  font: 700 15px/1.25 Georgia, "Times New Roman", serif;
  font-variant-numeric: tabular-nums lining-nums;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tn-dc-disclaimer {
  margin: 0;
  color: var(--dc-muted);
  -webkit-text-fill-color: var(--dc-muted);
  font: 500 11px/1.5 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

/* ---- Mobile ---- */
@media (max-width: 720px) {
  .tn-dc-grid {
    grid-template-columns: minmax(0, 1fr);
    min-height: 0;
  }
  .tn-dc-input {
    border-right: 0;
    border-bottom: 1px solid var(--dc-line);
  }
}

@media (max-width: 420px) {
  .tn-dc-shiftrow {
    grid-template-columns: minmax(0, 1fr);
    align-items: stretch;
  }
  .tn-dc-dirs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---- Dark / inverse / auto-dark: scheme tokens + text-fill (#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-dc-tool,
html[data-scheme="dark"] body:not([data-scheme="light"]) .tn-dc-tool,
html[data-scheme="inverse"] body:not([data-scheme="light"]) .tn-dc-tool {
  --dc-ink: #efe6d2;
  --dc-muted: #c3b492;
  --dc-line: #6f6047;
  --dc-soft: #574a37;
  --dc-paper: #241d12;
  --dc-wash: #2c2417;
  --dc-surface: rgba(58, 48, 32, 0.5);
  --dc-card: rgba(58, 48, 32, 0.5);
  --dc-chip-bg: rgba(58, 48, 32, 0.36);
  --dc-accent: #e8823f;
  --dc-on-accent: #241d12;
  --dc-btn-sec-bg: #33291a;
  --dc-btn-sec-hover: #453720;
  --dc-btn-sec-text: #efe6d2;
  color: var(--dc-ink);
  -webkit-text-fill-color: var(--dc-ink);
  color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
  body[data-scheme="auto"]:not([data-scheme="light"]) .tn-dc-tool {
    --dc-ink: #efe6d2;
    --dc-muted: #c3b492;
    --dc-line: #6f6047;
    --dc-soft: #574a37;
    --dc-paper: #241d12;
    --dc-wash: #2c2417;
    --dc-surface: rgba(58, 48, 32, 0.5);
    --dc-card: rgba(58, 48, 32, 0.5);
    --dc-chip-bg: rgba(58, 48, 32, 0.36);
    --dc-accent: #e8823f;
    --dc-on-accent: #241d12;
    --dc-btn-sec-bg: #33291a;
    --dc-btn-sec-hover: #453720;
    --dc-btn-sec-text: #efe6d2;
    color: var(--dc-ink);
    -webkit-text-fill-color: var(--dc-ink);
    color-scheme: dark;
  }
}