:root {
  color-scheme: light;
  --bg: #f4f7fb;
  --surface: #ffffff;
  --ink: #172033;
  --muted: #697386;
  --line: #d8e0eb;
  --blue: #2474df;
  --green: #1e9564;
  --amber: #bd7914;
  --red: #c84f55;
  --purple: #6857c8;
  --shadow: 0 12px 30px rgba(23, 32, 51, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f9fbff;
  color: var(--ink);
  cursor: pointer;
  font-weight: 750;
  transition:
    border-color 160ms ease,
    background 160ms ease,
    transform 160ms ease;
}

button:hover {
  border-color: var(--blue);
  background: #eef5ff;
}

button:active {
  transform: translateY(1px);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.58;
  transform: none;
}

button:disabled:hover {
  border-color: var(--line);
  background: #f9fbff;
}

.app-shell {
  width: min(100%, 980px);
  margin: 0 auto;
  padding: 20px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-size: 28px;
  line-height: 1.1;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 74px;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  background: #ddf3e9;
  color: #096241;
  font-weight: 800;
}

.view-tabs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 16px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #eaf0f8;
}

.view-tabs.single-view {
  grid-template-columns: 1fr;
}

.view-tab {
  border-color: transparent;
  background: transparent;
}

.view-tab[aria-pressed="true"] {
  border-color: var(--line);
  background: var(--surface);
  box-shadow: 0 4px 12px rgba(23, 32, 51, 0.08);
}

.selector-panel,
.panel,
.command-list {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.selector-panel {
  display: grid;
  grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
  align-items: end;
  gap: 16px;
  padding: 16px;
  margin-bottom: 16px;
}

.selector-panel label {
  margin-bottom: 0;
}

.selector-panel p {
  color: var(--muted);
  font-weight: 700;
}

.label {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.current-copy h2 {
  margin-bottom: 6px;
  font-size: 22px;
}

.current-copy p {
  color: var(--muted);
}

.primary-action {
  min-width: 150px;
  border-color: var(--blue);
  background: var(--blue);
  color: #fff;
  font-weight: 800;
}

.primary-action:hover {
  background: #1c63bf;
  color: #fff;
}

.panel.availability-panel {
  max-width: 720px;
  margin: 0 auto 16px;
  padding: 22px;
}

.group-context-status {
  display: flex;
  min-height: 150px;
  align-items: center;
  gap: 14px;
  padding: 18px;
  border: 1px solid #cfe0fb;
  border-radius: 10px;
  background: #f1f6ff;
}

.group-context-status strong {
  display: block;
  margin-bottom: 5px;
  color: #174e99;
  font-size: 17px;
}

.group-context-status p {
  color: #52739f;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.45;
}

.group-context-indicator {
  width: 12px;
  height: 12px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 0 6px rgba(36, 116, 223, 0.13);
}

.group-context-status.invalid {
  border-color: #f0c5c8;
  background: #fff3f3;
}

.group-context-status.invalid strong,
.group-context-status.invalid p {
  color: #8c3037;
}

.group-context-status.invalid .group-context-indicator {
  background: var(--red);
  box-shadow: 0 0 0 6px rgba(200, 79, 85, 0.13);
}

.availability-context {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
  padding: 11px 13px;
  border: 1px solid #cfe0fb;
  border-radius: 10px;
  background: #f1f6ff;
}

.availability-context span {
  color: #52739f;
  font-size: 12px;
  font-weight: 850;
  text-transform: uppercase;
}

.availability-context strong {
  overflow-wrap: anywhere;
  color: #174e99;
  text-align: right;
}

.availability-session-status {
  margin-bottom: 20px;
  padding: 13px 14px;
  border-left: 4px solid var(--blue);
  border-radius: 8px;
  background: #f1f6ff;
  color: #174e99;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.45;
  white-space: pre-line;
}

.availability-session-status.advisory {
  border-left-color: var(--amber);
  background: #fff8ea;
  color: #81510c;
}

.availability-session-status.success {
  border-left-color: var(--green);
  background: #effaf5;
  color: #176b4b;
}

.availability-session-status.invalid {
  border-left-color: var(--red);
  background: #fff3f3;
  color: #8c3037;
}

.availability-heading {
  margin-bottom: 20px;
}

.availability-heading h2 {
  margin: 0 0 8px;
  font-size: 24px;
}

.availability-heading .panel-copy {
  max-width: 62ch;
  line-height: 1.55;
}

.time-picker-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.time-picker-field input[type="time"] {
  min-height: 64px;
  padding: 0 14px;
  border-color: #b8c8dd;
  background: #f7faff;
  color: var(--ink);
  font-size: 25px;
  font-weight: 850;
}

.time-picker-field input[type="time"]:focus {
  border-color: var(--blue);
  outline: 3px solid rgba(36, 116, 223, 0.16);
}

.session-end-note {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.45;
}

.availability-preview {
  display: grid;
  gap: 5px;
  margin: 8px 0 16px;
  padding: 15px;
  border: 1px solid #bce4d3;
  border-radius: 10px;
  background: #effaf5;
}

.availability-preview > span {
  color: #176b4b;
  font-size: 12px;
  font-weight: 850;
  text-transform: uppercase;
}

.availability-preview output {
  color: #0d5f40;
  font-size: 25px;
  font-weight: 900;
}

.availability-preview p {
  color: #35745d;
  font-size: 13px;
  font-weight: 700;
}

.availability-preview.invalid {
  border-color: #f0c5c8;
  background: #fff3f3;
}

.availability-preview.invalid > span,
.availability-preview.invalid output,
.availability-preview.invalid p {
  color: #8c3037;
}

.availability-panel .primary-action {
  width: 100%;
}

.save-feedback {
  min-height: 20px;
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  text-align: center;
}

.availability-result {
  margin-top: 18px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #f9fbff;
  color: var(--ink);
  font-size: 13px;
  line-height: 1.5;
}

.availability-result-title {
  margin: 0;
  font-size: 18px;
}

.availability-result-summary,
.availability-missing {
  margin-top: 4px;
  color: var(--muted);
  font-weight: 700;
}

.availability-missing {
  color: #8c3037;
}

.availability-chart {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.availability-chart-title {
  color: #52739f;
  font-size: 11px;
  font-weight: 850;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.availability-row {
  display: grid;
  grid-template-columns: minmax(74px, 100px) minmax(0, 1fr);
  gap: 10px;
  align-items: center;
}

.availability-person {
  display: grid;
  min-width: 0;
}

.availability-person strong {
  overflow: hidden;
  text-overflow: ellipsis;
}

.availability-person small {
  color: #52739f;
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
}

.availability-plot {
  position: relative;
  height: 42px;
}

.availability-plot::after {
  position: absolute;
  right: 0;
  bottom: 6px;
  left: 0;
  height: 2px;
  border-radius: 2px;
  background: #d9e3f0;
  content: "";
}

.availability-bar {
  position: absolute;
  z-index: 1;
  bottom: 4px;
  height: 6px;
  border-radius: 999px;
  background: var(--blue);
}

.availability-bar::before,
.availability-bar::after {
  position: absolute;
  top: -3px;
  width: 3px;
  height: 12px;
  border-radius: 2px;
  background: inherit;
  content: "";
}

.availability-bar::before { left: 0; }
.availability-bar::after { right: 0; }
.availability-row.advisory .availability-bar { background: var(--amber); }
.availability-row.conflict .availability-bar { background: var(--red); }

.availability-times {
  position: absolute;
  top: 0;
  display: flex;
  flex-wrap: wrap;
  column-gap: 6px;
}

.availability-time {
  color: var(--ink);
  font-size: 11px;
  font-weight: 850;
  line-height: 14px;
  white-space: nowrap;
}

.availability-time.end { margin-left: auto; }

.availability-admin-decision {
  display: grid;
  gap: 12px;
  margin-top: 18px;
  padding: 16px;
  border: 1px solid #f0c5c8;
  border-radius: 10px;
  background: #fff7f7;
}

.availability-admin-decision h3 {
  margin: 0;
  font-size: 19px;
}

.availability-admin-decision input {
  font-variant-numeric: tabular-nums;
}

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

.availability-decision-actions .primary-action {
  grid-column: 1 / -1;
  width: 100%;
}

.availability-decision-actions [data-availability-action="cancel"] {
  color: #8c3037;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.panel {
  padding: 16px;
}

.panel.wide {
  grid-column: 1 / -1;
}

.panel-copy {
  color: var(--muted);
  font-weight: 700;
}

.setting-copy {
  margin-bottom: 12px;
  font-size: 13px;
}

.next-poll-timer {
  margin-top: 10px;
  padding: 10px 12px;
  border: 1px solid #cfe0fb;
  border-radius: 8px;
  background: #f1f6ff;
  color: var(--blue);
  font-size: 14px;
  font-weight: 800;
}

.panel-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.panel-title h3 {
  font-size: 16px;
}

.marker {
  width: 10px;
  height: 24px;
  border-radius: 999px;
}

.marker-blue {
  background: var(--blue);
}

.marker-green {
  background: var(--green);
}

.marker-amber {
  background: var(--amber);
}

.marker-red {
  background: var(--red);
}

.marker-purple {
  background: var(--purple);
}

.action-grid,
.action-row,
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.action-grid.single {
  grid-template-columns: 1fr;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
}

.info-grid div {
  min-width: 0;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f9fbff;
}

.info-grid dd {
  overflow-wrap: anywhere;
  text-align: left;
}

.tie-box {
  display: grid;
  gap: 10px;
}

.choice {
  display: flex;
  min-height: 58px;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: 10px 12px;
  text-align: left;
}

.choice span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
}

.form-grid {
  margin-bottom: 12px;
}

.slot-control {
  display: grid;
  gap: 8px;
  margin-bottom: 12px;
}

.slot-control > span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.slot-buttons {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.slot-buttons button[aria-pressed="true"] {
  border-color: var(--blue);
  background: var(--blue);
  color: #fff;
}

label {
  display: grid;
  gap: 6px;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

input,
select {
  min-height: 42px;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f9fbff;
  color: var(--ink);
  padding: 0 10px;
}

textarea {
  min-height: 130px;
  padding: 10px;
  resize: vertical;
  font: inherit;
  line-height: 1.45;
}

.command-list {
  margin-top: 16px;
  padding: 14px 16px;
}

.command-list span {
  display: block;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.command-list dl {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
}

.command-list div {
  min-width: 0;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f9fbff;
}

.command-list dt {
  overflow-wrap: anywhere;
  color: var(--ink);
  font-weight: 850;
}

.command-list dd {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

[hidden] {
  display: none !important;
}

@media (max-width: 680px) {
  .app-shell {
    padding: 14px;
  }

  .grid,
  .action-grid,
  .action-row,
  .selector-panel,
  .info-grid,
  .form-grid,
  .slot-buttons,
  .time-picker-grid,
  .command-list dl {
    grid-template-columns: 1fr;
  }

  .primary-action {
    width: 100%;
  }

  h1 {
    font-size: 24px;
  }

  .availability-context {
    align-items: flex-start;
    flex-direction: column;
  }

  .availability-context strong {
    text-align: left;
  }

  .availability-decision-actions {
    grid-template-columns: 1fr;
  }

  .availability-decision-actions .primary-action {
    grid-column: auto;
  }
}