:root {
  --color-canvas: #f5f5f5;
  --color-paper: #ffffff;
  --color-surface-alt: #fafafa;
  --color-ink: #0a0a0a;
  --color-ink-soft: #171717;
  --color-mid-gray: #737373;
  --color-hairline: #e5e5e5;
  --color-ember: #e7000b;
  --font-geist: Geist, Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --shadow-subtle: 0 0 0 1px rgba(23, 23, 23, 0.05), 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--color-canvas);
  color: var(--color-ink);
  font-family: var(--font-geist);
  font-size: 14px;
  line-height: 1.43;
}

a {
  color: inherit;
  text-decoration: none;
}

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1280px, calc(100% - 32px));
  margin: 16px auto 0;
  padding: 10px 12px;
  background: var(--color-paper);
  border: 1px solid var(--color-hairline);
  border-radius: 24px;
  box-shadow: var(--shadow-subtle);
}

nav div {
  display: flex;
  align-items: center;
  gap: 4px;
}

nav div a {
  min-height: 36px;
  border-radius: 18px;
  padding: 8px 12px;
  color: var(--color-mid-gray);
  font-weight: 500;
}

nav div a:hover {
  background: var(--color-canvas);
  color: var(--color-ink);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 36px;
  border-radius: 18px;
  padding: 6px 10px;
  font-size: 14px;
  font-weight: 600;
}

.brand img {
  display: block;
  width: 28px;
  height: 20px;
  object-fit: contain;
  filter: grayscale(1) contrast(1.25);
}

.login-logo {
  display: block;
  width: 44px;
  height: auto;
  filter: grayscale(1) contrast(1.25);
}

main {
  width: min(1280px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 64px;
}

main.legal {
  display: grid;
  min-height: 100vh;
  align-content: center;
  width: min(760px, calc(100% - 32px));
}

h1,
h2 {
  margin: 0;
  color: var(--color-ink);
  font-weight: 600;
  line-height: 1.1;
}

h1 {
  font-size: clamp(30px, 5vw, 48px);
  letter-spacing: -0.05em;
}

h2 {
  font-size: 24px;
  letter-spacing: -0.025em;
}

p {
  margin: 0;
}

hr {
  width: 100%;
  height: 1px;
  margin: 4px 0;
  border: 0;
  background: var(--color-hairline);
}

code {
  border-radius: 10px;
  background: var(--color-canvas);
  padding: 2px 6px;
  color: var(--color-ink);
  font-size: 13px;
}

label,
legend {
  color: var(--color-ink);
  font-weight: 500;
}

.toolbar,
.event-row,
.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.toolbar {
  margin-bottom: 28px;
}

.panel,
.event-row {
  border: 1px solid var(--color-hairline);
  border-radius: 24px;
  padding: 20px;
  background: var(--color-paper);
  box-shadow: var(--shadow-subtle);
}

.stack {
  display: grid;
  gap: 16px;
}

.card-stack {
  display: grid;
  gap: 20px;
}

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

.day {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.event-row strong {
  display: inline-block;
  margin-left: 8px;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.025em;
}

.actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

.actions.left {
  justify-content: flex-start;
}

.actions.split {
  justify-content: space-between;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  border-radius: 18px;
  padding: 8px 12px;
  border: 1px solid transparent;
  background: var(--color-canvas);
  color: var(--color-ink);
  font: inherit;
  font-weight: 500;
  cursor: pointer;
}

.button:hover {
  background: #eeeeee;
}

.button.primary {
  border-color: var(--color-ink);
  background: var(--color-ink);
  color: var(--color-surface-alt);
}

.button.primary:hover {
  background: var(--color-ink-soft);
}

.button.secondary {
  background: var(--color-canvas);
}

.button.danger {
  border-color: transparent;
  background: transparent;
  color: var(--color-ember);
}

.button.danger:hover {
  background: rgba(231, 0, 11, 0.08);
}

.input {
  display: block;
  width: 100%;
  min-height: 38px;
  margin-top: 6px;
  border: 1px solid transparent;
  border-radius: 18px;
  background: var(--color-canvas);
  color: var(--color-ink);
  padding: 8px 10px;
  font: inherit;
}

select.input option {
  background: var(--color-paper);
  color: var(--color-ink);
}

.textarea {
  border-radius: 18px;
  resize: vertical;
}

.input:focus {
  outline: 0;
  border-color: var(--color-hairline);
  background: transparent;
}

fieldset {
  margin: 0;
  padding: 0;
  border: 0;
}

legend {
  margin-bottom: 8px;
}

.checks {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
}

.checks label,
.checkline {
  color: var(--color-mid-gray);
  font-weight: 400;
}

.public-opt-in-form {
  display: grid;
  gap: 14px;
}

.consent-check {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: start;
  gap: 10px;
  color: var(--color-ink);
  font-weight: 400;
}

.consent-check input {
  margin-top: 4px;
}

input[type="checkbox"] {
  accent-color: var(--color-ink);
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border: 0;
  border-radius: 18px;
  padding: 2px 8px;
  background: var(--color-ink-soft);
  color: var(--color-surface-alt);
  font-size: 12px;
  font-weight: 500;
}

.eyebrow,
.muted {
  color: var(--color-mid-gray);
}

.eyebrow {
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 12px;
  font-weight: 500;
}

.note {
  margin-top: 8px;
  color: var(--color-ink);
}

.flash {
  margin: 0 0 16px;
  border: 1px solid var(--color-hairline);
  border-radius: 18px;
  padding: 12px 14px;
  background: var(--color-paper);
  box-shadow: var(--shadow-subtle);
}

.flash.error {
  border-color: rgba(231, 0, 11, 0.35);
  color: var(--color-ember);
}

.auth {
  display: grid;
  min-height: 100vh;
  align-content: center;
  justify-items: center;
  gap: 14px;
  padding: 24px;
}

.auth .panel {
  width: min(420px, 100%);
}

.settings-row {
  align-items: end;
  border-top: 1px solid var(--color-hairline);
  padding-top: 16px;
}

.settings-row label {
  flex: 1 1 160px;
}

.settings-row.new {
  border-top-color: var(--color-hairline);
}

.empty {
  color: var(--color-mid-gray);
}

.calendar-panel {
  padding: 0;
  overflow: hidden;
}

#carpool-calendar {
  padding: 20px;
}

.fc {
  color: var(--color-ink);
  font-family: var(--font-geist);
}

.fc .fc-toolbar.fc-header-toolbar {
  margin-bottom: 20px;
}

.fc .fc-toolbar-title {
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.025em;
}

.fc .fc-button {
  min-height: 36px;
  border: 0;
  border-radius: 18px;
  background: var(--color-canvas);
  color: var(--color-ink);
  box-shadow: none;
  font: inherit;
  font-weight: 500;
  text-transform: capitalize;
}

.fc .fc-button-primary:not(:disabled):hover,
.fc .fc-button-primary:not(:disabled).fc-button-active {
  background: var(--color-ink);
  color: var(--color-surface-alt);
}

.fc .fc-button-primary:disabled {
  background: var(--color-surface-alt);
  color: var(--color-mid-gray);
  opacity: 1;
}

.fc-theme-standard td,
.fc-theme-standard th,
.fc-theme-standard .fc-scrollgrid {
  border-color: var(--color-hairline);
}

.fc .fc-col-header-cell {
  background: var(--color-surface-alt);
}

.fc .fc-col-header-cell-cushion {
  padding: 10px 4px;
  color: var(--color-mid-gray);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.fc .fc-daygrid-day-number {
  padding: 8px;
  color: var(--color-mid-gray);
  font-weight: 500;
}

.fc .fc-day-today {
  background: var(--color-surface-alt) !important;
}

.fc .fc-daygrid-day-frame {
  min-height: 118px;
}

.fc .fc-event {
  border: 0;
  border-radius: 10px;
  padding: 2px 6px;
  font-size: 12px;
  font-weight: 500;
  overflow: hidden;
}

.fc .fc-event-title {
  overflow: hidden;
  text-overflow: ellipsis;
}

.fc .calendar-event,
.fc .calendar-event-dropoff,
.fc .calendar-icloud-event {
  background: var(--color-surface-alt);
  color: var(--color-ink);
  box-shadow: inset 0 0 0 1px var(--color-hairline);
}

.fc .calendar-blocked-day {
  background: rgba(231, 0, 11, 0.08);
  color: var(--color-ember);
  box-shadow: inset 0 0 0 1px rgba(231, 0, 11, 0.16);
}

.fc .fc-daygrid-more-link {
  color: var(--color-mid-gray);
  font-size: 12px;
  font-weight: 500;
}

@media (max-width: 760px) {
  nav,
  .toolbar,
  .event-row,
  .settings-row {
    align-items: stretch;
    flex-direction: column;
  }

  nav div,
  .actions {
    justify-content: flex-start;
  }

  nav div {
    flex-wrap: wrap;
  }

  .grid.two {
    grid-template-columns: 1fr;
  }

  #carpool-calendar {
    padding: 12px;
  }

  .fc .fc-toolbar.fc-header-toolbar {
    align-items: stretch;
    flex-direction: column;
    gap: 12px;
  }

  .fc .fc-toolbar-title {
    font-size: 20px;
    text-align: center;
  }

  .fc .fc-toolbar-chunk {
    display: flex;
    justify-content: center;
  }

  .fc .fc-button {
    min-height: 34px;
    padding: 6px 10px;
    font-size: 13px;
  }

  .fc .fc-daygrid-day-frame {
    min-height: 92px;
  }

  .fc .fc-event {
    font-size: 11px;
    padding: 2px 5px;
  }
}

@media (max-width: 640px) {
  main {
    width: min(100% - 20px, 1280px);
    padding-top: 20px;
  }

  nav {
    width: min(100% - 20px, 1280px);
    margin-top: 10px;
  }

  .calendar-panel {
    border-radius: 18px;
  }

  #carpool-calendar {
    padding: 10px;
  }

  .fc .fc-list {
    border: 0;
  }

  .fc-theme-standard .fc-list-day-cushion {
    background: var(--color-surface-alt);
  }

  .fc .fc-list-day-text,
  .fc .fc-list-day-side-text {
    color: var(--color-ink);
    font-weight: 600;
    text-decoration: none;
  }

  .fc .fc-list-event:hover td {
    background: var(--color-surface-alt);
  }

  .fc .fc-list-event-title a {
    color: var(--color-ink);
    font-weight: 500;
  }

  .fc .fc-list-event-dot {
    border-color: var(--color-mid-gray);
  }
}

    padding: 12px;
  }

  .fc .fc-toolbar.fc-header-toolbar {
    align-items: stretch;
    flex-direction: column;
    gap: 12px;
  }

  .fc .fc-daygrid-day-frame {
    min-height: 92px;
  }
}