:root {
  color-scheme: light dark;
  --bg: var(--tg-theme-bg-color, #f4f5f7);
  --panel: var(--tg-theme-secondary-bg-color, #ffffff);
  --text: var(--tg-theme-text-color, #111318);
  --muted: var(--tg-theme-hint-color, #68707d);
  --accent: var(--tg-theme-button-color, #7b61ff);
  --accent-text: var(--tg-theme-button-text-color, #ffffff);
  --danger: #d84f4f;
  --line: rgba(120, 128, 140, 0.28);
  --shadow: 0 8px 28px rgba(15, 18, 25, 0.10);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
textarea {
  font: inherit;
}

.app-shell {
  min-height: 100vh;
  padding: calc(env(safe-area-inset-top, 0px) + 12px) 12px calc(env(safe-area-inset-bottom, 0px) + 16px);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 0 0 10px;
}

.eyebrow {
  color: var(--muted);
  font-size: 12px;
}

h1 {
  margin: 0;
  font-size: 22px;
  letter-spacing: 0;
}

.actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.icon-button,
.primary-button,
.danger-button,
.add-card {
  border: 0;
  min-height: 40px;
  border-radius: 8px;
  cursor: pointer;
}

.icon-button {
  width: 40px;
  background: var(--panel);
  color: var(--text);
  box-shadow: inset 0 0 0 1px var(--line);
  font-size: 20px;
}

.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 0 13px;
  background: var(--accent);
  color: var(--accent-text);
}

.primary-button:disabled {
  opacity: 0.45;
  cursor: default;
}

.danger-button {
  padding: 0 13px;
  background: rgba(216, 79, 79, 0.12);
  color: var(--danger);
}

.status {
  min-height: 24px;
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 13px;
}

.status.error {
  color: var(--danger);
}

.board {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(280px, 86vw);
  gap: 12px;
  align-items: start;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  padding: 4px 0 18px;
  min-height: calc(100vh - 112px);
}

.lane {
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - 118px);
  background: color-mix(in srgb, var(--panel), var(--bg) 10%);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.lane-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 10px 8px;
  border-bottom: 1px solid var(--line);
}

.lane-title {
  min-width: 0;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.lane-count {
  color: var(--muted);
  font-size: 12px;
}

.cards {
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow-y: auto;
  padding: 10px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  box-shadow: 0 1px 0 rgba(20, 24, 30, 0.03);
  touch-action: manipulation;
}

.card.sortable-ghost {
  opacity: 0.35;
}

.card-main {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 6px;
}

.card-handle {
  color: var(--muted);
  text-align: center;
  user-select: none;
}

.card-text {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.card.done .card-text {
  color: var(--muted);
  text-decoration: line-through;
}

.card-notes {
  margin: 8px 0 0 32px;
  color: var(--muted);
  font-size: 13px;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.add-card {
  margin: 0 10px 10px;
  background: transparent;
  color: var(--accent);
  border: 1px dashed var(--line);
}

.modal {
  width: min(94vw, 520px);
  border: 0;
  border-radius: 8px;
  padding: 0;
  background: transparent;
}

.modal::backdrop {
  background: rgba(0, 0, 0, 0.35);
}

.modal-panel {
  display: grid;
  gap: 12px;
  padding: 14px;
  background: var(--panel);
  color: var(--text);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.modal-header,
.modal-actions,
.check-row {
  display: flex;
  align-items: center;
}

.modal-header,
.modal-actions {
  justify-content: space-between;
  gap: 10px;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
}

textarea {
  resize: vertical;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: var(--bg);
  color: var(--text);
}

.check-row {
  grid-template-columns: 20px 1fr;
  justify-content: start;
  color: var(--text);
}

@media (min-width: 760px) {
  .board {
    grid-auto-columns: minmax(300px, 360px);
  }
}