:root {
  --eqsy-blue: #2f73ff;
  --eqsy-blue-dark: #1f5fd8;
  --bg: #f5f8fc;
  --card: #ffffff;
  --text: #162033;
  --muted: #66758f;
  --line: #dbe4f0;
  --soft-blue: #edf4ff;
  --success: #127d4c;
  --danger: #b42318;
  --shadow: 0 14px 40px rgba(35, 54, 88, 0.1);
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 0;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.45;
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

.tz-app {
  width: min(1120px, calc(100% - 16px));
  margin: 0 auto;
  padding: 8px 0 12px;
}

.tool-toolbar {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 8px;
}

h1,
h2,
p {
  margin-top: 0;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

h1 {
  margin-bottom: 4px;
  font-size: clamp(1.32rem, 2.4vw, 1.8rem);
  line-height: 1.08;
  letter-spacing: 0;
}

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 14px;
  margin-top: 10px;
}

.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.section-heading h2 {
  margin: 0;
  font-size: 1rem;
  letter-spacing: 0;
}

.source-grid {
  display: grid;
  grid-template-columns: minmax(150px, 0.75fr) minmax(170px, 0.9fr) minmax(260px, 1.7fr);
  gap: 10px;
  align-items: start;
}

.field-group label,
.selector-label {
  display: block;
  margin-bottom: 6px;
  color: #33435c;
  font-size: 0.86rem;
  font-weight: 700;
}

input[type="date"],
input[type="time"],
.search-input {
  width: 100%;
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: var(--text);
  padding: 8px 10px;
  outline: none;
}

input:focus,
.search-input:focus,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(47, 115, 255, 0.25);
  outline-offset: 2px;
  border-color: var(--eqsy-blue);
}

.quick-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 6px;
}

.quick-actions button,
.secondary-button,
.icon-button {
  border: 1px solid var(--line);
  background: #fff;
  color: #30415c;
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 0.9rem;
  font-weight: 700;
}

.quick-actions button {
  min-height: 28px;
  padding: 5px 10px;
  color: var(--muted);
  font-size: 0.8rem;
}

.secondary-button:hover,
.quick-actions button:hover,
.icon-button:hover {
  border-color: #b9c9df;
  background: #f8fbff;
}

.primary-button {
  border: 0;
  border-radius: 10px;
  background: var(--eqsy-blue);
  color: #fff;
  min-height: 40px;
  padding: 9px 16px;
  font-weight: 800;
  box-shadow: 0 8px 20px rgba(47, 115, 255, 0.25);
}

.primary-button:hover {
  background: var(--eqsy-blue-dark);
}

.format-toggle {
  display: inline-flex;
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  padding: 3px;
}

.format-button {
  border: 0;
  background: transparent;
  color: var(--muted);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 0.86rem;
  font-weight: 800;
}

.format-button.is-active {
  background: var(--eqsy-blue);
  color: #fff;
}

.zone-meta,
.result-meta,
.context-line,
.copy-status {
  color: var(--muted);
  font-size: 0.9rem;
}

.zone-meta {
  min-height: 22px;
  margin: 7px 0 0;
}

.error-message {
  border: 1px solid #ffd0ca;
  background: #fff3f1;
  color: var(--danger);
  border-radius: 10px;
  padding: 10px 12px;
  margin-bottom: 14px;
}

.selector {
  position: relative;
}

.selector-list {
  position: absolute;
  z-index: 20;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  max-height: 280px;
  overflow: auto;
  margin: 0;
  padding: 6px;
  list-style: none;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 16px 42px rgba(28, 43, 72, 0.18);
}

.selector-list[hidden] {
  display: none;
}

.selector-option {
  border-radius: 9px;
  padding: 9px 10px;
  cursor: pointer;
}

.selector-option strong,
.result-city {
  display: block;
  font-weight: 800;
}

.selector-option span {
  display: block;
  color: var(--muted);
  font-size: 0.84rem;
}

.selector-option.is-active,
.selector-option:hover {
  background: var(--soft-blue);
}

.destinations {
  display: grid;
  gap: 10px;
}

.destination-card {
  display: grid;
  grid-template-columns: minmax(240px, 0.95fr) minmax(280px, 1.45fr) auto;
  align-items: start;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
  background: #fbfdff;
}

.destination-controls {
  min-width: 0;
}

.result-block {
  min-width: 0;
}

.result-time {
  margin: -2px 0 2px;
  color: var(--text);
  font-size: clamp(1.85rem, 3.4vw, 2.7rem);
  font-weight: 850;
  line-height: 1.02;
  letter-spacing: 0;
}

.result-date {
  margin: 4px 0 0;
  font-weight: 750;
}

.result-meta {
  margin: 3px 0 0;
}

.day-badge {
  display: inline-flex;
  align-items: center;
  min-height: 25px;
  margin-top: 6px;
  border-radius: 999px;
  background: var(--soft-blue);
  color: var(--eqsy-blue-dark);
  padding: 4px 10px;
  font-size: 0.82rem;
  font-weight: 800;
}

.context-line {
  margin: 8px 0 0;
}

.icon-button {
  width: 38px;
  height: 38px;
  padding: 0;
  border-radius: 10px;
  font-size: 1.25rem;
  line-height: 1;
}

.actions-panel {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.copy-status {
  color: var(--success);
  font-weight: 700;
}

.comparison-panel summary {
  color: var(--text);
  cursor: pointer;
  font-weight: 800;
}

.comparison-content {
  margin-top: 10px;
  overflow-x: auto;
}

.comparison-row {
  display: grid;
  grid-template-columns: 150px repeat(12, minmax(42px, 1fr));
  min-width: 680px;
  align-items: stretch;
  border-top: 1px solid var(--line);
}

.comparison-row:last-child {
  border-bottom: 1px solid var(--line);
}

.comparison-name,
.hour-cell {
  padding: 7px 8px;
  border-right: 1px solid var(--line);
}

.comparison-name {
  position: sticky;
  left: 0;
  z-index: 1;
  background: #fff;
  color: #33435c;
  font-weight: 800;
}

.hour-cell {
  text-align: center;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.hour-cell.work-hour {
  background: #eaf6ef;
  color: #12613d;
  font-weight: 800;
}

@media (max-width: 840px) {
  .section-heading {
    align-items: start;
    flex-direction: column;
  }

  .source-grid,
  .destination-card {
    grid-template-columns: 1fr;
  }

  .destinations-heading .secondary-button,
  .swap-button,
  .primary-button {
    width: 100%;
  }

  .icon-button {
    width: 100%;
  }
}

@media (max-width: 520px) {
  .tz-app {
    width: min(100% - 18px, 1120px);
    padding-top: 8px;
  }

  .panel {
    padding: 14px;
    border-radius: 12px;
  }

  .format-toggle {
    width: 100%;
  }

  .format-button {
    flex: 1;
  }

  .result-time {
    font-size: 2.35rem;
  }
}