:root {
  --bg: #f6f2eb;
  --paper: #fbf8f2;
  --ink: #2b2a26;
  --ink-soft: #6e6a60;
  --ink-faint: #a39f93;
  --rule: #e7e1d4;
  --accent: #6b7d5a;
  --done: #b9b3a3;
  --shadow: 0 1px 0 rgba(43, 42, 38, 0.04);
  --radius: 6px;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, system-ui, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1916;
    --paper: #201f1b;
    --ink: #e9e4d7;
    --ink-soft: #9e9a8d;
    --ink-faint: #5e5b53;
    --rule: #2c2a25;
    --accent: #95a784;
    --done: #6e6a60;
    --shadow: 0 1px 0 rgba(0, 0, 0, 0.2);
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

input {
  font: inherit;
  color: inherit;
}

.app {
  max-width: 980px;
  margin: 0 auto;
  padding: 48px 32px 96px;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  grid-template-areas:
    "head    head"
    "today   backlog"
    "foot    foot";
  gap: 48px 56px;
}

.masthead {
  grid-area: head;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 12px;
}

.date {
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: 0.01em;
}

.phase {
  font-size: 13px;
  color: var(--ink-soft);
  font-variant: small-caps;
  letter-spacing: 0.06em;
}

.column.today {
  grid-area: today;
}
.column.backlog {
  grid-area: backlog;
}

.column-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 18px;
}

h1,
h2 {
  font-family: var(--serif);
  font-weight: 400;
  margin: 0;
}

h1 {
  font-size: 32px;
}
h2 {
  font-size: 22px;
  color: var(--ink-soft);
}

.commit {
  font-size: 13px;
  color: var(--ink-faint);
  font-variant: small-caps;
  letter-spacing: 0.06em;
}

.list {
  list-style: none;
  padding: 0;
  margin: 0;
  min-height: 40px;
}

.task {
  display: grid;
  grid-template-columns: 22px 1fr auto;
  align-items: baseline;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--rule);
  cursor: grab;
}

.task:active {
  cursor: grabbing;
}

.task.dragging {
  opacity: 0.4;
}

.task.drop-target {
  border-top: 1px solid var(--accent);
}

.check {
  width: 16px;
  height: 16px;
  border: 1px solid var(--ink-faint);
  border-radius: 50%;
  margin-top: 4px;
  transition: background 220ms ease, border-color 220ms ease;
}

.check:hover {
  border-color: var(--accent);
}

.task.done .check {
  background: var(--accent);
  border-color: var(--accent);
}

.task.done .title {
  color: var(--done);
  text-decoration: line-through;
  text-decoration-color: var(--ink-faint);
}

.title {
  font-size: 16px;
  outline: none;
}

.title:focus {
  color: var(--ink);
}

.mins {
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  color: var(--ink-faint);
  min-width: 36px;
  text-align: right;
  outline: none;
}

.mins:empty::before {
  content: "—";
  color: var(--ink-faint);
}

.add {
  display: grid;
  grid-template-columns: 1fr 56px;
  gap: 12px;
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--rule);
}

.add input {
  border: 0;
  background: transparent;
  padding: 6px 0;
  outline: none;
}

.add input::placeholder {
  color: var(--ink-faint);
}

.add input:focus {
  border-bottom: 1px solid var(--accent);
}

.empty {
  color: var(--ink-faint);
  font-size: 14px;
  font-style: italic;
  margin: 12px 0 0;
}

.foot {
  grid-area: foot;
  display: flex;
  justify-content: flex-end;
  border-top: 1px solid var(--rule);
  padding-top: 18px;
}

.ghost {
  color: var(--ink-soft);
  font-size: 13px;
  letter-spacing: 0.04em;
  font-variant: small-caps;
  padding: 6px 0;
  transition: color 220ms ease;
}

.ghost:hover {
  color: var(--ink);
}

.ritual {
  position: fixed;
  inset: 0;
  background: rgba(43, 42, 38, 0.18);
  display: grid;
  place-items: center;
  z-index: 10;
  animation: settle 320ms ease both;
}

.ritual-inner {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px 36px 24px;
  max-width: 440px;
  width: calc(100% - 48px);
}

.ritual-inner h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 22px;
  margin: 0 0 12px;
}

.ritual-inner p {
  color: var(--ink-soft);
  margin: 0 0 24px;
  font-size: 15px;
}

.ritual-actions {
  display: flex;
  justify-content: flex-end;
  gap: 16px;
}

.ritual-actions button:not(.ghost) {
  font-size: 13px;
  letter-spacing: 0.04em;
  font-variant: small-caps;
  color: var(--accent);
}

@keyframes settle {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@media (max-width: 720px) {
  .app {
    grid-template-columns: 1fr;
    grid-template-areas:
      "head"
      "today"
      "backlog"
      "foot";
    gap: 32px;
    padding: 32px 20px 80px;
  }
}