@import './i18n.css';
:root {
  --bg: #fbf7f0;
  --card: #ffffff;
  --ink: #12314f;
  --muted: #5b6b7c;
  --line: #e7ddcf;
  --teal: #0f766e;
  --teal-soft: #99f6e4;
  --teal-faint: #d7f4ee;
  --amber: #b45309;
  --amber-soft: #fcd34d;
  --danger: #b3261e;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(18, 49, 79, 0.08);
}
* {
  box-sizing: border-box;
}
html {
  color-scheme: light;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans SC", sans-serif;
}
a {
  color: var(--teal);
}
a:hover {
  color: #0b5f59;
}
:focus-visible {
  outline: 3px solid #f59e0b;
  outline-offset: 2px;
  border-radius: 4px;
}
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: #fff;
  padding: 0.5rem 0.9rem;
  border-radius: 0 0 8px 0;
  z-index: 10;
}
.skip-link:focus {
  left: 0;
}
.site-header {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 1080px;
  margin: 0 auto;
  padding: 1rem 1.25rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--ink);
  font-weight: 700;
  font-size: 1.2rem;
  text-decoration: none;
  letter-spacing: 0.01em;
}
.brand img {
  display: block;
  width: 40px;
  height: 40px;
}
main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
}
.hero {
  padding: 1.4rem 0 0.6rem;
}
.hero h1 {
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  line-height: 1.2;
  margin: 0 0 0.6rem;
}
.hero p {
  margin: 0;
  max-width: 62ch;
  color: var(--muted);
}
.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem;
  margin-top: 1.25rem;
}
.panel h2 {
  margin: 0 0 1rem;
  font-size: 1.35rem;
}
.participants {
  display: grid;
  gap: 1rem;
}
.participant {
  display: grid;
  grid-template-columns: minmax(240px, 1.6fr) minmax(130px, 0.7fr) minmax(130px, 0.7fr) auto;
  gap: 0.8rem;
  align-items: end;
  padding: 0.9rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fdfbf7;
  margin: 0;
}
.participant legend {
  font-weight: 700;
  color: var(--teal);
  padding: 0 0.3rem;
}
.field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.85rem;
  color: var(--muted);
  min-width: 0;
}
.field select,
.field input {
  font: inherit;
  color: var(--ink);
  padding: 0.5rem 0.6rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  width: 100%;
  min-width: 0;
}
.field input[hidden] {
  display: none;
}
.remove {
  font: inherit;
  padding: 0.5rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: var(--danger);
  cursor: pointer;
}
.remove:disabled {
  color: var(--muted);
  cursor: not-allowed;
  opacity: 0.6;
}
.planner-actions,
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1rem;
}
.planner-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}
.planner-meta .field {
  min-width: 200px;
}
button {
  font: inherit;
}
#find-windows,
#add-participant,
.actions button {
  border: 0;
  border-radius: 10px;
  padding: 0.65rem 1.1rem;
  cursor: pointer;
  font-weight: 600;
}
#find-windows {
  background: var(--teal);
  color: #fff;
}
#find-windows:hover {
  background: #0b5f59;
}
#add-participant,
.actions button {
  background: var(--teal-faint);
  color: var(--teal);
  border: 1px solid var(--teal-soft);
}
#add-participant:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
.error {
  color: var(--danger);
  font-weight: 600;
  margin: 0.9rem 0 0;
}
.notice {
  color: var(--teal);
  font-weight: 600;
  min-height: 1.4em;
  margin: 0.4rem 0 0;
}
#status-message strong {
  display: block;
  font-size: 1.15rem;
}
#status-message .note {
  display: block;
  color: var(--muted);
  margin-top: 0.3rem;
}
#status-message .baseline {
  display: block;
  margin-top: 0.6rem;
  font-size: 0.9rem;
  color: var(--muted);
}
.timeline {
  margin-top: 1.4rem;
}
.timeline h3 {
  margin: 0 0 0.6rem;
}
.timeline-axis {
  position: relative;
  height: 1.2rem;
  margin-left: 116px;
}
.tick {
  position: absolute;
  transform: translateX(-50%);
  font-size: 0.75rem;
  color: var(--muted);
  white-space: nowrap;
}
.timeline-row {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 6px;
  align-items: center;
  margin-top: 6px;
}
.timeline-name {
  font-size: 0.85rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.timeline-track {
  position: relative;
  display: block;
  height: 20px;
  background: #f2ece2;
  border-radius: 6px;
  overflow: hidden;
}
.timeline-work,
.timeline-overlap,
.timeline-window {
  position: absolute;
  top: 0;
  bottom: 0;
}
.timeline-work {
  background: var(--teal-soft);
}
.timeline-overlap {
  background: var(--amber-soft);
  opacity: 0.85;
}
.timeline-window {
  background: var(--teal);
  opacity: 0.85;
  border-radius: 3px;
}
.timeline-legend {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin: 0.7rem 0 0 116px;
  font-size: 0.85rem;
  color: var(--muted);
}
.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
.legend-mark {
  width: 14px;
  height: 14px;
  border-radius: 4px;
  display: inline-block;
}
.legend-mark.work {
  background: var(--teal-soft);
}
.legend-mark.overlap {
  background: var(--amber-soft);
}
.details h3 {
  margin: 1rem 0 0.6rem;
}
.details h4 {
  margin: 1rem 0 0.4rem;
}
.window-select,
.start-select {
  font: inherit;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
  max-width: 100%;
}
.local-times {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.45rem;
}
.local-times li {
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fdfbf7;
}
.copy-fallback {
  position: fixed;
  left: -9999px;
  top: 0;
}
.copy-manual {
  display: block;
  width: 100%;
  min-height: 5.5rem;
  margin-top: 0.5rem;
  padding: 0.6rem;
  border: 2px solid var(--teal);
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  resize: vertical;
}
.window-info {
  margin: 0.6rem 0 0.2rem;
  padding: 0.6rem 0.75rem;
  border-left: 4px solid var(--teal);
  background: var(--teal-faint);
  border-radius: 8px;
  font-weight: 600;
}
.explain,
.faq,
.guides,
.privacy-note {
  margin-top: 1.25rem;
}
.explain h2,
.faq h2,
.guides h2,
.privacy-note h2 {
  font-size: 1.25rem;
}
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  padding: 0;
  margin: 0;
  list-style: none;
}
.steps li {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
}
.steps h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  color: var(--teal);
}
.steps p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}
.faq details {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.8rem 1rem;
  margin-bottom: 0.6rem;
}
.faq summary {
  cursor: pointer;
  font-weight: 600;
}
.faq p {
  margin: 0.6rem 0 0;
  color: var(--muted);
}
.privacy-note p {
  color: var(--muted);
  margin: 0;
}
.site-footer {
  max-width: 1080px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 2.5rem;
  color: var(--muted);
  font-size: 0.9rem;
}
@media (max-width: 720px) {
  .participant {
    grid-template-columns: 1fr 1fr;
  }
  .participant .field:first-of-type {
    grid-column: 1 / -1;
  }
  .participant .remove {
    grid-column: 1 / -1;
  }
  .timeline-axis {
    margin-left: 0;
  }
  .timeline-row {
    grid-template-columns: 84px 1fr;
  }
  .timeline-legend {
    margin-left: 0;
  }
}
@media (prefers-reduced-motion: no-preference) {
  #find-windows,
  #add-participant,
  .actions button {
    transition: background-color 120ms ease;
  }
}