:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --surface-soft: #f9fafb;
  --line: #d9dde8;
  --line-strong: #b8c0d2;
  --text: #24262d;
  --muted: #687083;
  --blue: #0b73d9;
  --green: #0f8f65;
  --amber: #bf7a10;
  --red: #c8344d;
  --ink: #2f3645;
  --shadow: 0 16px 36px rgba(30, 40, 60, 0.12);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  background: var(--bg);
  color: var(--text);
  margin: 0;
}

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

button {
  cursor: pointer;
}

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

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

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

.gtd-shell {
  display: grid;
  grid-template-columns: 276px minmax(0, 1fr);
  min-height: 100vh;
}

.gtd-sidebar {
  background: #ffffff;
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 18px 14px;
}

.gtd-brand {
  align-items: center;
  display: flex;
  gap: 12px;
}

.brand-mark {
  align-items: center;
  background: var(--blue);
  border-radius: 8px;
  color: #ffffff;
  display: grid;
  font-weight: 900;
  height: 38px;
  place-items: center;
  width: 38px;
}

.gtd-brand span,
.eyebrow,
.sidebar-note span,
.empty-state p,
.task-meta,
.review-card small,
.project-card small {
  color: var(--muted);
  display: block;
  font-size: 0.8rem;
}

.capture-button,
.primary-button,
.ghost-button,
.icon-button {
  border-radius: 8px;
  min-height: 38px;
}

.capture-button,
.primary-button {
  background: var(--blue);
  border: 1px solid var(--blue);
  color: #ffffff;
  font-weight: 800;
  padding: 0 14px;
}

.capture-button {
  width: 100%;
}

.ghost-button {
  align-items: center;
  background: #ffffff;
  border: 1px solid var(--line);
  color: var(--text);
  display: inline-flex;
  justify-content: center;
  padding: 0 14px;
  white-space: nowrap;
}

.ghost-button:hover,
.icon-button:hover,
.gtd-nav-item:hover {
  background: #eef5ff;
  border-color: #bdd7f5;
}

.danger-button {
  border-color: #f2bfca;
  color: var(--red);
}

.icon-button {
  aspect-ratio: 1;
  background: #ffffff;
  border: 1px solid var(--line);
  color: var(--text);
  width: 38px;
}

.gtd-nav-list {
  display: grid;
  gap: 5px;
}

.gtd-nav-item {
  align-items: center;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--ink);
  display: flex;
  justify-content: space-between;
  min-height: 40px;
  padding: 0 12px;
  text-align: left;
}

.gtd-nav-item strong {
  background: #eef0f4;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.76rem;
  min-width: 28px;
  padding: 2px 8px;
  text-align: center;
}

.gtd-nav-item.is-active {
  background: #e8f3ff;
  border-color: #c4ddf8;
  color: #095cae;
}

.gtd-nav-item.is-active strong {
  background: #0b73d9;
  color: #ffffff;
}

.sidebar-note {
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  margin-top: auto;
  padding: 12px;
}

.sidebar-note strong {
  display: block;
  font-size: 0.88rem;
  margin-top: 6px;
}

.gtd-main {
  min-width: 0;
  padding: 18px 22px 28px;
}

.gtd-topbar {
  align-items: center;
  display: flex;
  gap: 16px;
  margin-bottom: 18px;
}

.view-heading {
  min-width: 0;
}

.view-heading h1 {
  font-size: 1.65rem;
  line-height: 1.1;
}

.view-heading p:last-child {
  color: var(--muted);
  font-size: 0.92rem;
  margin-top: 4px;
}

.top-actions {
  align-items: center;
  display: flex;
  gap: 8px;
  margin-left: auto;
}

.quick-capture,
.gtd-filters,
.panel,
.focus-panel,
.task-dialog {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.quick-capture {
  align-items: center;
  display: flex;
  gap: 10px;
  margin-bottom: 12px;
  padding: 12px;
}

.quick-capture form {
  display: flex;
  flex: 1;
  gap: 10px;
  min-width: 0;
}

.quick-capture input,
.gtd-filters input,
.gtd-filters select,
.task-form input,
.task-form select,
.task-form textarea,
.inline-input,
.inline-select,
.inline-textarea {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--text);
  min-height: 38px;
  outline: 0;
  padding: 8px 10px;
  width: 100%;
}

.quick-capture input:focus,
.gtd-filters input:focus,
.gtd-filters select:focus,
.task-form input:focus,
.task-form select:focus,
.task-form textarea:focus,
.inline-input:focus,
.inline-select:focus,
.inline-textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(11, 115, 217, 0.12);
}

.gtd-filters {
  display: grid;
  gap: 10px;
  grid-template-columns: minmax(180px, 1fr) minmax(140px, 180px) minmax(140px, 200px) auto;
  margin-bottom: 16px;
  padding: 12px;
}

.gtd-filters label,
.task-form label,
.task-field label {
  color: var(--muted);
  display: grid;
  font-size: 0.76rem;
  font-weight: 800;
  gap: 6px;
}

.gtd-layout {
  align-items: start;
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 1fr) 310px;
}

.gtd-content {
  display: grid;
  gap: 14px;
  min-width: 0;
}

.panel {
  min-width: 0;
  padding: 14px;
}

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

.panel-header h2 {
  font-size: 1rem;
}

.task-list {
  display: grid;
  gap: 10px;
}

.task-card {
  background: #ffffff;
  border: 1px solid var(--line);
  border-left: 4px solid var(--blue);
  border-radius: 8px;
  display: grid;
  gap: 10px;
  padding: 12px;
}

.task-card[data-list="waiting"] {
  border-left-color: var(--amber);
}

.task-card[data-list="calendar"] {
  border-left-color: var(--green);
}

.task-card[data-list="someday"],
.task-card[data-list="reference"] {
  border-left-color: #768094;
}

.task-card.is-done {
  background: #f7f8fa;
  opacity: 0.78;
}

.task-card.is-done .title-input {
  text-decoration: line-through;
}

.task-main-row {
  align-items: center;
  display: grid;
  gap: 10px;
  grid-template-columns: auto minmax(0, 1fr) auto;
}

.done-checkbox {
  height: 18px;
  width: 18px;
}

.title-input {
  border: 0;
  border-radius: 6px;
  color: var(--text);
  font-weight: 800;
  min-height: 34px;
  outline: 0;
  padding: 6px 8px;
  width: 100%;
}

.title-input:focus {
  background: #f3f8ff;
}

.task-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.chip {
  background: #f0f2f5;
  border-radius: 999px;
  color: #4b5568;
  display: inline-flex;
  font-size: 0.76rem;
  font-weight: 800;
  min-height: 24px;
  padding: 3px 8px;
}

.chip.context-chip {
  background: #e9f5ef;
  color: #08724f;
}

.chip.date-chip {
  background: #fff4df;
  color: #8a5600;
}

.chip.recurring-chip {
  background: #edf0ff;
  color: #3f4ea8;
}

.task-fields {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(4, minmax(130px, 1fr));
}

.inline-textarea {
  min-height: 70px;
  resize: vertical;
}

.task-notes,
.checklist {
  display: grid;
  gap: 8px;
}

.checklist-row {
  align-items: center;
  display: flex;
  gap: 8px;
  min-height: 26px;
}

.checklist-row input[type="checkbox"] {
  height: 16px;
  width: 16px;
}

.checklist-row.is-done span {
  color: var(--muted);
  text-decoration: line-through;
}

.task-actions,
.process-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.mini-button {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--text);
  min-height: 30px;
  padding: 0 10px;
}

.mini-button:hover {
  background: #f3f7fb;
}

.mini-button.danger {
  border-color: #f0bdc7;
  color: var(--red);
}

.process-grid,
.review-grid,
.project-grid,
.calendar-grid {
  display: grid;
  gap: 12px;
}

.process-card,
.review-card,
.project-card,
.calendar-day {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
}

.process-card h3,
.project-card h3,
.calendar-day h3 {
  font-size: 0.98rem;
  margin-bottom: 8px;
}

.project-card {
  display: grid;
  gap: 10px;
}

.project-progress {
  background: #edf0f4;
  border-radius: 999px;
  height: 8px;
  overflow: hidden;
}

.project-progress span {
  background: var(--green);
  display: block;
  height: 100%;
}

.calendar-grid {
  grid-template-columns: repeat(7, minmax(120px, 1fr));
  overflow-x: auto;
}

.calendar-day {
  min-height: 160px;
}

.calendar-day.is-today {
  border-color: var(--blue);
  box-shadow: inset 0 0 0 1px var(--blue);
}

.calendar-item {
  background: #eef5ff;
  border-left: 3px solid var(--blue);
  border-radius: 6px;
  font-size: 0.78rem;
  margin-top: 6px;
  padding: 6px 7px;
}

.empty-state {
  align-items: center;
  background: #ffffff;
  border: 1px dashed var(--line-strong);
  border-radius: 8px;
  display: grid;
  justify-items: start;
  min-height: 150px;
  padding: 18px;
}

.empty-state h2 {
  font-size: 1rem;
}

.focus-panel {
  display: grid;
  gap: 14px;
  padding: 14px;
  position: sticky;
  top: 18px;
}

.focus-section {
  display: grid;
  gap: 8px;
}

.focus-section h2 {
  font-size: 0.96rem;
}

.focus-list {
  display: grid;
  gap: 7px;
}

.focus-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 3px;
  padding: 9px;
}

.focus-item strong {
  font-size: 0.84rem;
}

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

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

.stat-card {
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
}

.stat-card strong {
  display: block;
  font-size: 1.35rem;
}

.review-list {
  display: grid;
  gap: 8px;
}

.review-list label {
  align-items: center;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  display: flex;
  gap: 8px;
  padding: 10px;
}

.task-dialog {
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  max-width: 720px;
  padding: 0;
  width: min(92vw, 720px);
}

.task-dialog::backdrop {
  background: rgba(31, 37, 51, 0.55);
}

.task-form {
  display: grid;
  gap: 14px;
  padding: 18px;
}

.dialog-header,
.dialog-actions {
  align-items: center;
  display: flex;
  gap: 10px;
  justify-content: space-between;
}

.form-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.dialog-actions {
  border-top: 1px solid var(--line);
  margin: 0 -18px -18px;
  padding: 12px 18px;
}

.dialog-actions .danger-button {
  margin-right: auto;
}

.toast {
  background: #202735;
  border-radius: 8px;
  bottom: 18px;
  color: #ffffff;
  left: 50%;
  padding: 10px 14px;
  position: fixed;
  transform: translateX(-50%);
  z-index: 10;
}

@media (max-width: 1180px) {
  .gtd-layout {
    grid-template-columns: 1fr;
  }

  .focus-panel {
    position: static;
  }
}

@media (max-width: 900px) {
  .gtd-shell {
    grid-template-columns: 1fr;
  }

  .gtd-sidebar {
    box-shadow: var(--shadow);
    height: 100vh;
    left: 0;
    max-width: min(86vw, 320px);
    position: fixed;
    top: 0;
    transform: translateX(-110%);
    transition: transform 180ms ease;
    width: 320px;
    z-index: 5;
  }

  .gtd-sidebar.is-open {
    transform: translateX(0);
  }

  .gtd-main {
    padding: 14px;
  }

  .gtd-topbar {
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .top-actions {
    margin-left: 0;
    width: 100%;
  }

  .top-actions .ghost-button,
  .top-actions .primary-button {
    flex: 1;
  }

  .gtd-filters {
    grid-template-columns: 1fr 1fr;
  }

  .task-fields {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .quick-capture,
  .quick-capture form,
  .top-actions,
  .task-main-row,
  .dialog-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .quick-capture,
  .quick-capture form,
  .top-actions,
  .dialog-actions {
    display: flex;
  }

  .gtd-filters,
  .task-fields,
  .form-grid,
  .stats-row {
    grid-template-columns: 1fr;
  }

  .task-main-row {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
  }

  .task-main-row .mini-button {
    grid-column: 1 / -1;
  }

  .view-heading h1 {
    font-size: 1.35rem;
  }

  .dialog-actions .danger-button {
    margin-right: 0;
  }
}