:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --text: #17202a;
  --muted: #65717f;
  --line: #d8dee6;
  --primary: #176b87;
  --primary-dark: #0f4c5c;
  --danger: #b42318;
  --danger-bg: #fff0ed;
  --danger-line: #f2a49a;
  --warning-bg: #fff1d6;
  --warning-line: #e4a11b;
  --warning-text: #8a5a00;
  --project-brown: #7a4b24;
  --project-brown-bg: #f3e7dc;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.5;
}

a {
  color: var(--primary);
  text-decoration: none;
}

.tabs a,
.button,
button {
  border-radius: 6px;
}

.page {
  width: 100%;
  margin: 18px 0 72px;
  padding: 0 24px;
}

.page-title {
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  gap: 12px;
  margin-bottom: 18px;
}

.hamburger-menu {
  position: relative;
  flex: 0 0 auto;
}

.hamburger-menu summary {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
  cursor: pointer;
  list-style: none;
}

.hamburger-menu summary::-webkit-details-marker {
  display: none;
}

.hamburger-menu summary span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text);
  border-radius: 999px;
}

.hamburger-panel {
  position: absolute;
  top: 46px;
  left: 0;
  z-index: 20;
  display: grid;
  min-width: 190px;
  padding: 6px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 12px 30px rgba(23, 32, 42, 0.12);
}

.hamburger-panel a {
  padding: 9px 10px;
  border-radius: 6px;
  color: var(--text);
}

.hamburger-panel a.active {
  background: #e7f1f4;
  color: var(--primary-dark);
}

h1,
h2 {
  margin: 0 0 8px;
}

h1 {
  font-size: 30px;
}

h2 {
  font-size: 20px;
}

p {
  margin: 0;
}

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

.tabs {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
  overflow-x: auto;
}

.tabs a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  padding: 10px 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--text);
}

.tabs a.active {
  border-color: var(--primary);
  background: #e7f1f4;
}

.tabs span,
.pill {
  display: inline-block;
  min-width: 24px;
  padding: 2px 8px;
  border-radius: 999px;
  background: #edf1f5;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

.pill.due-soon {
  background: var(--warning-bg);
  color: var(--warning-text);
}

.pill.overdue {
  background: var(--danger-bg);
  color: var(--danger);
}

.project-pill {
  min-width: 0;
  margin-right: 6px;
  padding: 1px 7px;
  background: var(--project-brown-bg);
  color: var(--project-brown);
  font-weight: 700;
}

.panel,
.form-grid {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  margin-bottom: 16px;
}

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

.panel-heading h2 {
  margin-bottom: 0;
}

.task-list,
.project-alert-list,
.template-list {
  display: grid;
  gap: 10px;
}

.task-row,
.project-alert-row,
.template-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfd;
}

.task-row.overdue {
  background: var(--danger-bg);
  border-color: var(--danger-line);
}

.task-row.due-soon {
  background: var(--warning-bg);
  border-color: var(--warning-line);
}

.task-main,
.project-alert-main,
.template-main {
  display: grid;
  gap: 3px;
  color: var(--text);
  min-width: 0;
}

.due {
  color: var(--muted);
  font-size: 14px;
}

.due.due-soon {
  color: var(--warning-text);
}

.due.overdue {
  color: var(--danger);
}

.empty,
.notice {
  padding: 14px;
  background: #eef3f7;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
}

.notice {
  margin-bottom: 16px;
  color: var(--primary-dark);
}

.action-notice {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.notice-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

button,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 8px 14px;
  border: 1px solid var(--primary);
  background: var(--primary);
  color: #fff;
  font: inherit;
  cursor: pointer;
}

button.secondary,
.button.secondary {
  border-color: var(--line);
  background: #fff;
  color: var(--text);
}

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

.fab {
  position: fixed;
  right: 24px;
  bottom: 24px;
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 34px;
  line-height: 1;
  box-shadow: 0 12px 30px rgba(23, 107, 135, 0.3);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-weight: 600;
}

.field-note {
  color: var(--muted);
  font-size: 13px;
  font-weight: 400;
}

.time-estimate-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 0.42fr);
  gap: 8px 14px;
  align-items: start;
}

.time-estimate-row.recurring-mode {
  grid-template-columns: minmax(220px, 0.42fr);
  justify-content: end;
}

.time-estimate-row.recurring-mode #start_at_field {
  display: none;
}

.time-estimate-row.recurring-mode .field-note {
  display: none;
}

.recurrence-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 8px 14px;
  align-items: start;
}

.recurrence-note.hidden {
  display: none;
}

input,
select,
textarea {
  width: 100%;
  min-height: 38px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--text);
  background: #fff;
  font: inherit;
}

.datetime-field {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  position: relative;
}

.datetime-picker {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.datetime-button {
  min-width: 68px;
  border-color: var(--line);
  background: #fff;
  color: var(--text);
}

textarea {
  resize: vertical;
}

.full {
  grid-column: 1 / -1;
}

.hidden {
  display: none;
}

.checkbox-line {
  display: flex;
  align-items: center;
  gap: 8px;
  align-self: end;
}

.checkbox-line input {
  width: auto;
  min-height: 0;
}

.actions,
.action-panel form,
.inline-create,
.inline-form {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.actions {
  justify-content: flex-end;
}

.project-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 16px;
}

.project-list {
  display: grid;
  gap: 12px;
}

.project-row {
  display: grid;
  grid-template-columns: 1fr 1.2fr 120px auto auto;
  gap: 8px;
  align-items: center;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.project-row.selected {
  border-color: var(--primary);
  background: #f0f8fa;
}

.project-row.stale,
.project-alert-row {
  background: var(--warning-bg);
  border-color: var(--warning-line);
}

.project-touch-form {
  display: flex;
  justify-content: flex-end;
  margin-top: -6px;
}

.template-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

@media (max-width: 760px) {
  .task-row,
  .project-alert-row,
  .template-row,
  .panel-heading {
    align-items: stretch;
    flex-direction: column;
  }

  .page-title {
    align-items: flex-start;
  }

  .action-notice {
    align-items: stretch;
    flex-direction: column;
  }

  .notice-actions {
    justify-content: flex-start;
  }

  .form-grid,
  .project-layout,
  .project-row,
  .time-estimate-row,
  .time-estimate-row.recurring-mode,
  .recurrence-row,
  .datetime-field {
    grid-template-columns: 1fr;
  }

  .fab {
    right: 18px;
    bottom: 18px;
  }
}