:root {
  color-scheme: light dark;
  --ink: #172522;
  --paper: #f4efe4;
  --paper-strong: #fffaf0;
  --muted: #66736d;
  --line: #d7cdb9;
  --safe: #0f6f55;
  --warn: #9a6412;
  --danger: #a93428;
  --night: #12312c;
  --accent: #f4b942;
  --shadow: 0 24px 70px rgb(24 35 32 / 18%);
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #f7f0df;
    --paper: #111c1a;
    --paper-strong: #19302c;
    --muted: #aeb9b4;
    --line: #35524c;
    --safe: #77ddb6;
    --warn: #f4c766;
    --danger: #ff9488;
    --night: #07100f;
    --accent: #f4b942;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgb(244 185 66 / 26%), transparent 28rem),
    linear-gradient(135deg, var(--paper), var(--paper-strong));
  color: var(--ink);
  font-family: Charter, "Bitstream Charter", Georgia, serif;
  line-height: 1.5;
}

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

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.hero {
  display: grid;
  gap: 2rem;
  grid-template-columns: minmax(0, 1fr) auto;
  padding: clamp(2rem, 6vw, 5rem);
  background: var(--night);
  color: #fff7df;
}

.hero h1 {
  font-size: clamp(3rem, 11vw, 8rem);
  letter-spacing: -0.08em;
  line-height: 0.85;
  margin: 0;
  max-width: 9ch;
}

.hero__lead {
  font-size: clamp(1.1rem, 2vw, 1.45rem);
  max-width: 52rem;
}

.hero__badges,
.button-row,
.section-heading-row {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero__badges {
  align-content: start;
  justify-content: end;
  max-width: 22rem;
}

.badge {
  border: 1px solid rgb(255 247 223 / 42%);
  border-radius: 999px;
  padding: 0.5rem 0.8rem;
}

.app-shell {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(12, 1fr);
  margin: -2.5rem auto 0;
  max-width: 1180px;
  padding: 0 1rem 3rem;
}

.panel {
  background: color-mix(in srgb, var(--paper-strong), transparent 5%);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
  grid-column: span 6;
  padding: clamp(1rem, 3vw, 1.75rem);
}

.panel--summary {
  grid-column: span 12;
}

.panel--wide {
  grid-column: span 12;
}

.eyebrow {
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  margin: 0 0 0.45rem;
  text-transform: uppercase;
}

h2,
h3,
p {
  margin-top: 0;
}

h2 {
  font-size: clamp(1.55rem, 3vw, 2.4rem);
  line-height: 1;
  margin-bottom: 1rem;
}

label,
fieldset {
  display: grid;
  gap: 0.35rem;
  margin: 0 0 1rem;
}

fieldset {
  border: 0;
  padding: 0;
}

legend,
label span {
  font-weight: 700;
}

input,
select,
textarea {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 16px;
  color: var(--ink);
  min-height: 44px;
  padding: 0.75rem 0.85rem;
  width: 100%;
}

textarea {
  resize: vertical;
}

hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 1.5rem 0;
}

.segmented {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.segmented legend {
  flex-basis: 100%;
}

.segmented label {
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  display: flex;
  gap: 0.4rem;
  margin: 0;
  padding: 0.45rem 0.75rem;
}

.segmented input {
  min-height: auto;
  width: auto;
}

.field-grid,
.metric-grid,
.single-day-form {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.single-day-form {
  align-items: end;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.8fr) auto;
}

.metric {
  background: #12312c;
  border-radius: 22px;
  color: #fff7df;
  padding: 1rem;
}

.metric--wide {
  background: #07100f;
}

.metric strong {
  display: block;
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1;
}

.metric__label {
  color: #d8e4dd;
}

.hint,
.small-print,
.muted {
  color: var(--muted);
}

.summary-text {
  font-size: 1.2rem;
  margin: 1.25rem 0 0.7rem;
}

.button {
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  cursor: pointer;
  min-height: 44px;
  padding: 0.7rem 1rem;
}

.button--primary {
  background: #0f6f55;
  border-color: #0f6f55;
  color: #fff;
}

.button--danger {
  color: var(--danger);
}

.button--compact {
  min-height: 38px;
  padding: 0.45rem 0.75rem;
}

.errors:not(:empty) {
  background: color-mix(in srgb, var(--danger), transparent 86%);
  border-left: 4px solid var(--danger);
  border-radius: 12px;
  color: var(--danger);
  margin-bottom: 1rem;
  padding: 0.8rem;
}

.date-list,
.stay-list,
.border-timeline,
.heatmap-grid {
  display: grid;
  gap: 0.75rem;
  list-style: none;
  padding: 0;
}

.date-list li,
.stay-list li {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 0.9rem;
}

.date-list li.violation {
  border-color: var(--danger);
}

.stay-list__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.status-pill {
  border-radius: 999px;
  display: inline-block;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.76rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  padding: 0.2rem 0.55rem;
  text-transform: uppercase;
}

.status-pill--past {
  background: color-mix(in srgb, var(--safe), transparent 84%);
  color: var(--safe);
}

.status-pill--projected,
.status-pill--violation {
  background: color-mix(in srgb, var(--warn), transparent 84%);
  color: var(--warn);
}

.status-pill--violation {
  background: color-mix(in srgb, var(--danger), transparent 84%);
  color: var(--danger);
}

.ledger-picker {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--paper), var(--accent) 8%), var(--paper-strong));
  border: 1px solid var(--line);
  border-radius: 24px;
  margin: 1rem 0 1.3rem;
  padding: 1rem;
}

.ledger-picker__header {
  align-items: center;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.month-label {
  color: var(--ink);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.85rem;
}

.calendar-weekdays,
.ledger-calendar {
  display: grid;
  gap: 0.45rem;
  grid-template-columns: repeat(7, minmax(0, 1fr));
}

.calendar-weekdays {
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.72rem;
  margin-bottom: 0.45rem;
  text-align: center;
}

.ledger-day {
  align-content: center;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 14px;
  color: var(--ink);
  cursor: pointer;
  display: grid;
  gap: 0.1rem;
  min-height: 58px;
  padding: 0.35rem;
  text-align: center;
}

.ledger-day strong {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.ledger-day small {
  display: flex;
  flex-wrap: wrap;
  gap: 0.16rem;
  justify-content: center;
  min-height: 1rem;
}

.ledger-day small span {
  border: 1px solid currentColor;
  border-radius: 999px;
  font-size: 0.55rem;
  font-weight: 700;
  line-height: 1;
  padding: 0.12rem 0.2rem;
  text-transform: uppercase;
}

.ledger-day--muted {
  opacity: 0.42;
}

.ledger-day--past {
  background: color-mix(in srgb, var(--safe), transparent 86%);
  border-color: color-mix(in srgb, var(--safe), var(--line) 55%);
}

.ledger-day--projected {
  background: color-mix(in srgb, var(--warn), transparent 84%);
  border-style: dashed;
}

.ledger-day--selected {
  box-shadow: inset 0 0 0 2px var(--accent);
}

.ledger-day--start,
.ledger-day--end {
  background: #12312c;
  border-color: #12312c;
  color: #fff7df;
}

.ledger-day--violation {
  background: color-mix(in srgb, var(--danger), transparent 82%);
  border-color: var(--danger);
  border-style: solid;
}

.ledger-day--today {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.selection-preview {
  background: var(--night);
  border-radius: 18px;
  color: #fff7df;
  margin: 1rem 0 0.55rem;
  padding: 0.8rem 0.9rem;
}

.timeline-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1rem 0;
}

.timeline-legend span {
  align-items: center;
  display: inline-flex;
  gap: 0.35rem;
}

.legend-dot {
  border: 1px solid var(--line);
  border-radius: 999px;
  display: inline-block;
  height: 0.85rem;
  width: 0.85rem;
}

.legend-dot--past,
.timeline-day--past {
  background: var(--safe);
}

.legend-dot--projected,
.timeline-day--projected {
  background: var(--warn);
}

.legend-dot--violation,
.timeline-day--violation {
  background: var(--danger);
}

.legend-dot--empty,
.timeline-day--empty {
  background: color-mix(in srgb, var(--muted), transparent 72%);
}

.border-timeline {
  gap: 0.18rem;
  grid-template-columns: repeat(180, minmax(5px, 1fr));
  margin: 0;
  max-width: 100%;
  min-width: 0;
  overflow-x: auto;
}

.timeline-day {
  border: 1px solid color-mix(in srgb, var(--ink), transparent 82%);
  border-radius: 999px;
  min-height: 42px;
}

.heatmap-grid {
  grid-template-columns: repeat(7, minmax(0, 1fr));
  margin: 1rem 0 0;
}

.heatmap-day {
  align-content: center;
  border: 1px solid var(--line);
  border-radius: 16px;
  display: grid;
  gap: 0.1rem;
  min-height: 76px;
  padding: 0.45rem;
  text-align: center;
}

.heatmap-day strong,
.heatmap-day small,
.heatmap-day span {
  display: block;
}

.heatmap-day strong,
.heatmap-day small {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.heatmap-day span {
  font-weight: 700;
}

.heatmap-day--safe {
  background: color-mix(in srgb, var(--safe), transparent 88%);
}

.heatmap-day--near {
  background: repeating-linear-gradient(135deg, color-mix(in srgb, var(--warn), transparent 82%), color-mix(in srgb, var(--warn), transparent 82%) 6px, transparent 6px, transparent 12px);
  border-color: var(--warn);
}

.heatmap-day--over {
  background: color-mix(in srgb, var(--danger), transparent 84%);
  border-color: var(--danger);
}

.visually-hidden {
  border: 0;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  white-space: nowrap;
  width: 1px;
}

@media (max-width: 820px) {
  .hero,
  .app-shell,
  .field-grid,
  .metric-grid,
  .single-day-form,
  .ledger-picker__header {
    grid-template-columns: 1fr;
  }

  .ledger-picker__header {
    align-items: start;
    display: grid;
  }

  .hero__badges {
    justify-content: start;
  }

  .panel,
  .panel--summary {
    grid-column: span 1;
  }

  .ledger-day {
    border-radius: 12px;
    min-height: 52px;
    padding: 0.24rem;
  }

  .ledger-day small span {
    font-size: 0.48rem;
  }

  .heatmap-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: no-preference) {
  .panel {
    animation: rise 420ms ease both;
  }

  @keyframes rise {
    from {
      opacity: 0;
      transform: translateY(16px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}