:root {
  color-scheme: light;
  --ink: #172033;
  --muted: #667085;
  --paper: #f5f1e8;
  --panel: #fffdf7;
  --line: #d8d0c0;
  --accent: #1f6f68;
  --accent-2: #c84f31;
  --accent-3: #274c77;
  --soft: #e8f2ef;
  --warn: #fff1d7;
  --danger: #b42318;
  --shadow: 0 20px 60px rgba(35, 31, 25, 0.14);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(31, 111, 104, 0.18), transparent 34rem),
    linear-gradient(135deg, #f9f2df 0%, #eef4ee 48%, #f7efe8 100%);
}

.site-return {
  position: fixed;
  z-index: 10;
  top: 22px;
  right: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 9px 12px;
  color: var(--ink);
  background: rgba(255, 253, 247, 0.92);
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(35, 31, 25, 0.1);
}

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

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

button {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 14px;
  color: var(--ink);
  background: #fffaf0;
  cursor: pointer;
}

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

button.primary {
  border-color: var(--accent);
  color: #ffffff;
  background: var(--accent);
}

button.danger {
  border-color: #f3b6af;
  color: var(--danger);
  background: #fff5f3;
}

input,
select,
textarea {
  width: 100%;
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  color: var(--ink);
  background: #fffdf8;
}

textarea {
  min-height: 420px;
  resize: vertical;
  font-family: "Cascadia Mono", Consolas, monospace;
  font-size: 12px;
  line-height: 1.55;
}

.app {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 18px;
  width: min(1420px, calc(100vw - 28px));
  min-height: calc(100vh - 28px);
  margin: 14px auto;
}

.rail,
.panel {
  border: 1px solid rgba(216, 208, 192, 0.82);
  border-radius: 8px;
  background: rgba(255, 253, 247, 0.88);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.rail {
  position: sticky;
  top: 14px;
  display: flex;
  flex-direction: column;
  align-self: start;
  min-height: calc(100vh - 28px);
  padding: 22px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent-2);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 12px;
  font-size: 34px;
  line-height: 1;
}

h2 {
  margin-bottom: 0;
  font-size: 24px;
}

h3 {
  margin-bottom: 12px;
  font-size: 16px;
}

.rail-copy {
  color: var(--muted);
  line-height: 1.65;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin: 18px 0;
}

.stats div {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 10px;
  background: #fff8e8;
}

.stats span {
  display: block;
  font-size: 24px;
  font-weight: 800;
}

.stats small {
  color: var(--muted);
}

.tabs {
  display: grid;
  gap: 8px;
}

.tab {
  justify-content: flex-start;
  width: 100%;
  text-align: left;
  background: transparent;
}

.tab.is-active {
  border-color: var(--accent);
  color: #ffffff;
  background: var(--accent);
}

.rail-actions {
  display: grid;
  gap: 10px;
  margin-top: auto;
  padding-top: 20px;
}

.workspace {
  min-width: 0;
}

.panel {
  display: none;
  min-height: calc(100vh - 28px);
  padding: 22px;
}

.panel.is-active {
  display: block;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 22px;
}

.panel-head input[type="date"] {
  max-width: 190px;
}

.inline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.rows {
  display: grid;
  gap: 10px;
}

.editor-row {
  display: grid;
  grid-template-columns: 92px 96px 96px minmax(150px, 1.2fr) minmax(100px, 0.8fr) 92px 72px;
  gap: 8px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: rgba(255, 255, 255, 0.58);
}

.goal-row {
  grid-template-columns: minmax(180px, 1.4fr) 128px 92px 112px minmax(180px, 1fr) 72px;
}

.task-row {
  grid-template-columns: minmax(180px, 1.4fr) minmax(130px, 0.9fr) minmax(110px, 0.9fr) 128px 90px 82px 82px 96px 72px;
}

.remove {
  padding-inline: 8px;
}

.task-stack {
  display: grid;
  gap: 12px;
}

.task-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  border: 1px solid var(--line);
  border-left: 5px solid var(--accent-3);
  border-radius: 8px;
  padding: 14px;
  background: #fffdf8;
}

.task-card.done {
  opacity: 0.62;
  border-left-color: var(--accent);
}

.task-title {
  margin-bottom: 6px;
  font-weight: 800;
}

.task-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border-radius: 999px;
  padding: 2px 9px;
  background: var(--soft);
}

.empty-hint {
  display: none;
  border: 1px dashed var(--line);
  border-radius: 8px;
  padding: 22px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.42);
}

.empty-hint.is-visible {
  display: block;
}

.week-board {
  display: grid;
  grid-template-columns: repeat(7, minmax(130px, 1fr));
  gap: 10px;
}

.day-column {
  min-height: 460px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: rgba(255, 250, 240, 0.66);
}

.day-column h3 {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  padding-bottom: 8px;
}

.day-column small {
  color: var(--muted);
  font-weight: 500;
}

.plan-item {
  display: grid;
  gap: 6px;
  margin-bottom: 9px;
  border-radius: 8px;
  padding: 10px;
  background: #ffffff;
}

.plan-item strong {
  font-size: 13px;
}

.plan-item span {
  color: var(--muted);
  font-size: 12px;
}

.data-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 1100px) {
  .app {
    grid-template-columns: 1fr;
  }

  .rail {
    position: static;
    min-height: auto;
  }

  .tabs {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .week-board,
  .data-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .site-return {
    position: static;
    display: inline-flex;
    margin: 12px 8px 0;
  }

  .app {
    width: min(100vw - 16px, 560px);
    margin: 8px auto;
  }

  .rail,
  .panel {
    padding: 16px;
  }

  .panel-head {
    align-items: stretch;
    flex-direction: column;
  }

  .tabs,
  .rail-actions {
    grid-template-columns: 1fr 1fr;
  }

  .editor-row,
  .goal-row,
  .task-row {
    grid-template-columns: 1fr;
  }
}