:root {
  color-scheme: light;
  --bg: #f3f6f5;
  --panel: #ffffff;
  --panel-soft: #eaf1ef;
  --ink: #17201f;
  --muted: #65716f;
  --line: #d2ddda;
  --accent: #26796f;
  --accent-strong: #195e56;
  --gold: #a87824;
  --available: #24745e;
  --na: #786c5d;
  --unavailable: #a44850;
  font-family: Inter, "Segoe UI", system-ui, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #0f1816;
    --panel: #14211e;
    --panel-soft: #1b2c28;
    --ink: #edf5f2;
    --muted: #9cb0aa;
    --line: #2c433d;
    --accent: #70c6b8;
    --accent-strong: #96ddd2;
    --gold: #e1b765;
    --available: #77cdb1;
    --na: #b7aaa0;
    --unavailable: #e1888e;
  }
}

* { box-sizing: border-box; }

body {
  min-width: 280px;
  min-height: 100vh;
  margin: 0;
  background: var(--bg);
  color: var(--ink);
}

button,
select,
textarea { font: inherit; }

button { cursor: pointer; }

button:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 35%, transparent);
  outline-offset: 2px;
}

.loading-shell,
.error-shell {
  display: grid;
  min-height: 100vh;
  align-content: center;
  justify-items: center;
  gap: 14px;
  padding: 28px;
  text-align: center;
}

.loading-shell span {
  width: 30px;
  height: 30px;
  border: 3px solid var(--line);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.scheduler-shell {
  width: min(1120px, 100%);
  margin: 0 auto;
  padding: 26px 42px 52px;
}

.poll-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  padding: 12px 0 24px;
  border-bottom: 1px solid var(--line);
}

.poll-heading h1,
.poll-heading p { margin: 0; }

.poll-heading h1 {
  margin-top: 4px;
  font-size: 2.25rem;
  line-height: 1.12;
}

.poll-kicker {
  color: var(--accent-strong);
  font-size: 0.73rem;
  font-weight: 800;
  text-transform: uppercase;
}

.poll-meta {
  display: grid;
  flex: 0 0 auto;
  justify-items: end;
  gap: 4px;
  color: var(--muted);
  font-size: 0.78rem;
}

.poll-meta strong { color: var(--ink); }

.scheduler-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(270px, 0.75fr);
  gap: 34px;
  padding-top: 26px;
}

.response-panel,
.ranking-panel { min-width: 0; }

.identity-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 14px;
  padding-bottom: 22px;
}

.field {
  display: grid;
  gap: 6px;
}

.field > span {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 750;
  text-transform: uppercase;
}

.field input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  color: var(--ink);
  padding: 10px 12px;
}

select { min-height: 42px; }
textarea { min-height: 86px; resize: vertical; }

.character-line {
  color: var(--muted);
  font-size: 0.78rem;
  text-align: right;
}

.character-line strong { color: var(--ink); }

.slot-list {
  display: grid;
  gap: 10px;
  padding: 0;
  border-top: 1px solid var(--line);
}

.availability-calendars {
  display: grid;
  gap: 24px;
}

.availability-month {
  min-width: 0;
}

.availability-month-title {
  margin: 0 0 9px;
  font-size: 1rem;
  text-transform: capitalize;
}

.availability-month-scroll {
  overflow-x: auto;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.availability-month-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(84px, 1fr));
  min-width: 630px;
}

.availability-weekday {
  padding: 8px 6px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.66rem;
  font-weight: 800;
  text-align: center;
  text-transform: uppercase;
}

.availability-day-cell {
  min-height: 76px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel) 72%, var(--bg));
  padding: 6px;
}

.availability-day-cell:nth-child(7n) {
  border-right: 0;
}

.availability-day-cell.is-empty {
  background: transparent;
}

.availability-day-cell.has-slots {
  background: var(--panel);
}

.availability-day-number {
  display: block;
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 760;
}

.availability-day-cell.has-slots .availability-day-number {
  color: var(--accent-strong);
}

.availability-day-slots {
  display: grid;
  gap: 8px;
}

.calendar-slot-response {
  display: grid;
  gap: 5px;
  min-width: 0;
  margin: 0;
  border: 0;
  padding: 0;
}

.calendar-slot-response legend {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.calendar-slot-copy {
  display: grid;
  gap: 1px;
  min-width: 0;
}

.calendar-slot-label,
.calendar-slot-time {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.calendar-slot-label {
  font-size: 0.68rem;
}

.calendar-slot-time {
  color: var(--muted);
  font-size: 0.64rem;
  font-weight: 680;
}

.calendar-slot-response .availability-control {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  width: 100%;
}

.calendar-slot-response .availability-control span {
  min-width: 0;
  min-height: 30px;
  padding: 0 3px;
  font-size: 0.61rem;
}

.availability-day-time {
  color: var(--accent-strong);
  font-size: 0.58rem;
  font-weight: 800;
}

.availability-mobile-slots {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.mobile-slot-response {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  padding: 10px;
}

.mobile-slot-response legend {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.slot-response {
  display: grid;
  grid-template-columns: minmax(170px, 1fr) auto;
  align-items: center;
  gap: 18px;
  min-width: 0;
  margin: 0;
  padding: 16px 0;
  border: 0;
  border-bottom: 1px solid var(--line);
}

.slot-response legend {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.slot-copy {
  display: grid;
  gap: 3px;
  min-width: 0;
}

.slot-copy strong { font-size: 0.98rem; }
.slot-copy span { color: var(--muted); font-size: 0.78rem; }

.availability-control {
  display: grid;
  grid-template-columns: repeat(3, minmax(36px, auto));
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel-soft);
}

.availability-control label { display: block; }
.availability-control input { position: absolute; opacity: 0; pointer-events: none; }

.availability-control span {
  display: grid;
  min-width: 46px;
  min-height: 38px;
  place-items: center;
  border-right: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 780;
}

.availability-control label:last-child span { border-right: 0; }
.availability-control input:focus-visible + span { outline: 3px solid color-mix(in srgb, var(--accent) 35%, transparent); outline-offset: -3px; }
.availability-control input[value="available"]:checked + span { background: color-mix(in srgb, var(--available) 18%, var(--panel)); color: var(--available); }
.availability-control input[value="unavailable"]:checked + span { background: color-mix(in srgb, var(--unavailable) 15%, var(--panel)); color: var(--unavailable); }
.availability-control input[value="na"]:checked + span { background: color-mix(in srgb, var(--na) 12%, var(--panel)); color: var(--na); }

.response-footer {
  display: grid;
  gap: 14px;
  padding-top: 22px;
}

.save-row {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
}

.save-state { min-height: 1.2em; color: var(--muted); font-size: 0.78rem; }
.save-state.is-success { color: var(--available); }
.save-state.is-error { color: var(--unavailable); }

.primary-action {
  min-height: 42px;
  border: 1px solid var(--accent-strong);
  border-radius: 6px;
  background: var(--accent-strong);
  color: var(--panel);
  padding: 0 18px;
  font-weight: 780;
}

.primary-action:disabled { cursor: default; opacity: 0.5; }

.secondary-action {
  min-height: 40px;
  border: 1px solid var(--accent-strong);
  border-radius: 6px;
  background: transparent;
  color: var(--accent-strong);
  padding: 0 16px;
  font-weight: 760;
}

.secondary-action:disabled { cursor: default; opacity: 0.5; }

.suggestion-panel {
  margin-top: 22px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.suggestion-panel summary {
  cursor: pointer;
  padding: 14px 2px;
  color: var(--accent-strong);
  font-weight: 780;
}

.suggestion-content {
  display: grid;
  gap: 14px;
  padding: 0 2px 16px;
}

.suggestion-content > p {
  margin: 0;
  color: var(--muted);
  font-size: 0.8rem;
}

.suggestion-fields {
  display: grid;
  grid-template-columns: minmax(145px, 1fr) minmax(110px, 0.65fr) minmax(110px, 0.65fr) minmax(180px, 1.25fr);
  gap: 10px;
}

.ranking-panel {
  align-self: start;
  position: sticky;
  top: 20px;
  border-left: 1px solid var(--line);
  padding-left: 26px;
}

.ranking-panel h2,
.ranking-panel p { margin: 0; }
.ranking-panel h2 { font-size: 1rem; }
.ranking-panel > p { margin-top: 4px; color: var(--muted); font-size: 0.78rem; }

.ranking-list {
  display: grid;
  margin-top: 16px;
  border-top: 1px solid var(--line);
}

.ranking-row {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.ranking-position {
  display: grid;
  width: 24px;
  height: 24px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 800;
}

.ranking-row:first-child .ranking-position { border-color: var(--gold); color: var(--gold); }
.ranking-copy { display: grid; gap: 2px; min-width: 0; }
.ranking-copy strong { overflow: hidden; font-size: 0.82rem; text-overflow: ellipsis; white-space: nowrap; }
.ranking-copy span { color: var(--muted); font-size: 0.7rem; }
.ranking-score { color: var(--accent-strong); font-size: 0.82rem; font-weight: 800; white-space: nowrap; }

.closed-banner {
  margin-top: 18px;
  border-left: 3px solid var(--gold);
  background: var(--panel-soft);
  padding: 12px 14px;
  color: var(--muted);
}

@media (max-width: 820px) {
  .scheduler-grid { grid-template-columns: 1fr; }
  .ranking-panel { position: static; border-top: 1px solid var(--line); border-left: 0; padding-top: 24px; padding-left: 0; }
}

@media (max-width: 580px) {
  .scheduler-shell { padding: 12px 16px 36px; }
  .poll-heading h1 { font-size: 1.55rem; }
  .poll-heading { flex-direction: column; }
  .poll-meta { justify-items: start; }
  .identity-row { grid-template-columns: 1fr; }
  .character-line { text-align: left; }
  .slot-response { grid-template-columns: 1fr; gap: 10px; }
  .availability-month-scroll { overflow: hidden; }
  .availability-month-grid.is-compact {
    grid-template-columns: repeat(7, minmax(0, 1fr));
    width: 100%;
    min-width: 0;
  }
  .availability-month-grid.is-compact .availability-day-cell {
    min-height: 48px;
    padding: 4px;
  }
  .availability-month-grid.is-compact .availability-day-number {
    margin-bottom: 3px;
  }
  .availability-month-grid.is-compact .availability-day-slots { gap: 1px; }
  .mobile-slot-response { grid-template-columns: 1fr; }
  .availability-control { width: 100%; }
  .availability-control span { min-height: 42px; }
  .save-row { align-items: stretch; flex-direction: column; }
  .suggestion-fields { grid-template-columns: 1fr 1fr; }
  .suggestion-label { grid-column: 1 / -1; }
  .primary-action { width: 100%; }
  .secondary-action { width: 100%; }
}