:root {
  --bg: #eef3f8;
  --surface: #ffffff;
  --surface-soft: #f7fafc;
  --glass: rgba(255,255,255,.78);
  --text: #182635;
  --muted: #657789;
  --line: #cbd8e4;
  --line-strong: #aebfce;
  --primary: #2f5f8d;
  --primary-dark: #244b72;
  --primary-soft: #e2edf7;
  --secondary: #5f7285;
  --success: #28745b;
  --warning: #9a6a20;
  --danger: #a84040;
  --shadow: 0 18px 45px rgba(32,53,76,.12);
  --radius: 8px;
  --radius-sm: 6px;
  --topbar-height: 64px;
  --transition: 160ms ease;
}

[data-theme="dark"] {
  --bg: #16202a;
  --surface: #1d2a36;
  --surface-soft: #243443;
  --glass: rgba(29,42,54,.86);
  --text: #ecf3f9;
  --muted: #a8b8c7;
  --line: #385064;
  --line-strong: #536c80;
  --primary: #6da0d1;
  --primary-dark: #9abbdb;
  --primary-soft: #203c57;
  --secondary: #9fb0bf;
  --success: #70b79d;
  --warning: #d6a85d;
  --danger: #db7a7a;
  --shadow: 0 18px 45px rgba(0,0,0,.24);
}

* { box-sizing: border-box; }
html { color-scheme: light; }
[data-theme="dark"] { color-scheme: dark; }
body {
  margin: 0;
  font: 15px/1.45 Inter, "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background: var(--bg);
  letter-spacing: 0;
}

a { color: var(--primary); text-decoration: none; }
button, input, select, textarea { font: inherit; }
button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, a:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--primary) 35%, transparent);
  outline-offset: 2px;
}

.auth-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.auth-card {
  width: min(430px, 100%);
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
}

.brand-row, .topbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 600;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: var(--primary);
  color: white;
  font-weight: 700;
  font-size: 13px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--topbar-height);
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 0 30px;
  background: var(--glass);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.topbar-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  min-width: 0;
}

.topbar-nav a, .tab-link {
  color: var(--text);
  padding: 9px 12px;
  border-radius: var(--radius-sm);
}

.topbar-nav a.active, .tab-link.active {
  background: var(--primary);
  color: white;
}

.topbar-user {
  color: var(--muted);
  white-space: nowrap;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  flex: 0 0 auto;
}

.page-shell {
  width: min(1540px, calc(100% - 48px));
  margin: 28px auto 64px;
}

.page-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

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

h1 { font-size: 28px; margin: 0; font-weight: 600; }
h2 { font-size: 18px; margin: 0 0 14px; font-weight: 600; }
h3 { font-size: 15px; margin: 0; font-weight: 600; }

.panel, .glass-panel {
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.panel { padding: 18px; }
.glass-panel { backdrop-filter: blur(12px); }

.toolbar, .row-actions, .inline-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.toolbar {
  justify-content: end;
}

form.toolbar {
  display: grid;
  grid-template-columns: minmax(180px, 320px) 40px;
  align-items: center;
  gap: 8px;
}

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

.span-2 { grid-column: 1 / -1; }
label { display: grid; gap: 6px; color: var(--secondary); font-weight: 600; font-size: 13px; }
input, select, textarea {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  color: var(--text);
  background: var(--surface);
}
textarea { min-height: 92px; resize: vertical; }

.btn, .icon-btn {
  border: 1px solid var(--line);
  background: var(--surface-soft);
  color: var(--text);
  border-radius: var(--radius-sm);
  min-height: 40px;
  padding: 0 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), opacity var(--transition);
}

.btn.primary, .icon-btn.primary { background: var(--primary); border-color: var(--primary); color: white; }
.btn.success, .icon-btn.success { background: var(--success); border-color: var(--success); color: white; }
.btn.danger, .icon-btn.danger { background: var(--danger); border-color: var(--danger); color: white; }
.btn.ghost, .icon-btn { background: transparent; }
.btn:disabled, .icon-btn:disabled { opacity: .58; cursor: wait; }
.icon-btn {
  width: 40px;
  height: 40px;
  min-width: 40px;
  min-height: 40px;
  padding: 0;
  display: inline-grid;
  place-items: center;
  line-height: 1;
}

.icon-btn.nav-toggle { display: none; }

.icon-btn svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 999px;
  padding: 5px 9px;
  font-size: 12px;
  font-weight: 700;
  background: var(--primary-soft);
  color: var(--primary-dark);
  white-space: nowrap;
}
.badge.success { background: color-mix(in srgb, var(--success) 18%, transparent); color: var(--success); }
.badge.warning { background: color-mix(in srgb, var(--warning) 18%, transparent); color: var(--warning); }
.badge.danger { background: color-mix(in srgb, var(--danger) 18%, transparent); color: var(--danger); }

.table-shell { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; min-width: 760px; }
th, td { border-bottom: 1px solid var(--line); padding: 11px 10px; text-align: left; vertical-align: middle; }
th { background: color-mix(in srgb, var(--primary-soft) 48%, var(--surface)); color: var(--secondary); font-size: 13px; }
tr:hover td { background: color-mix(in srgb, var(--primary-soft) 28%, transparent); }

.tabs {
  display: flex;
  gap: 6px;
  padding: 4px;
  margin-bottom: 18px;
  overflow-x: auto;
}

.kanban {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 14px;
  padding-bottom: 8px;
}

.kanban-column {
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-height: 420px;
  padding: 12px;
}

.kanban-column header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.task-card {
  width: 100%;
  min-width: 0;
  display: grid;
  gap: 9px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
  margin-bottom: 10px;
  overflow: hidden;
}

.task-card.done { opacity: .74; }
.task-card > *,
.task-card-main > *,
.task-card-detail > * {
  min-width: 0;
}

.task-card-main {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 40px;
  gap: 8px;
  align-items: center;
}

.task-card-main strong {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.task-card-detail {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(120px, 44%);
  gap: 8px;
  align-items: center;
}

.task-meta {
  min-width: 0;
  display: flex;
  gap: 6px;
  align-items: center;
  flex-wrap: nowrap;
  overflow: hidden;
  color: var(--muted);
  font-size: 12px;
}

.task-meta > * {
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.progress { height: 8px; border-radius: 999px; background: var(--line); overflow: hidden; }
.progress > span { display: block; height: 100%; background: var(--success); }

.task-card-detail select {
  min-width: 0;
  max-width: 100%;
}

.calendar-panel {
  padding: 14px;
}

.calendar-toolbar {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

.calendar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: end;
}

.calendar-legend {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.calendar-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.calendar-legend-item::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: var(--primary);
}

.calendar-legend-item.task::before { background: var(--success); }
.calendar-legend-item.step::before { background: var(--warning); }

.segmented {
  display: inline-flex;
  align-items: center;
  height: 40px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-soft);
}

.segmented button {
  height: 32px;
  border: 0;
  border-radius: var(--radius-sm);
  padding: 0 10px;
  background: transparent;
  color: var(--muted);
  font-weight: 700;
  cursor: pointer;
}

.segmented button.active {
  background: var(--primary);
  color: white;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  grid-template-rows: 36px repeat(5, minmax(0, 1fr));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--line);
  gap: 1px;
}

.calendar-grid.month {
  height: clamp(520px, calc(100vh - var(--topbar-height) - 178px), 760px);
}

.calendar-grid.week {
  grid-template-rows: 36px minmax(0, 1fr);
  height: clamp(520px, calc(100vh - var(--topbar-height) - 178px), 760px);
}

.calendar-weekday {
  min-height: 36px;
  display: grid;
  place-items: center;
  background: color-mix(in srgb, var(--primary-soft) 54%, var(--surface));
  color: var(--secondary);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.calendar-day {
  min-height: 0;
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 8px;
  padding: 9px;
  background: var(--surface);
}

.calendar-grid.week .calendar-day {
  min-height: 0;
}

.calendar-day.outside {
  background: var(--surface-soft);
  color: var(--muted);
}

.calendar-day.today {
  box-shadow: inset 0 0 0 2px var(--primary);
}

.calendar-day header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  min-height: 24px;
  font-weight: 800;
}

.calendar-events {
  display: grid;
  align-content: start;
  gap: 6px;
  min-height: 0;
  overflow-y: auto;
}

.calendar-event {
  width: 100%;
  display: grid;
  gap: 2px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-sm);
  padding: 7px 8px;
  background: color-mix(in srgb, var(--primary-soft) 42%, var(--surface));
  color: var(--text);
  text-align: left;
  font-size: 12px;
}

button.calendar-event {
  cursor: pointer;
}

.calendar-event strong,
.calendar-event span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.calendar-event.task {
  border-left-color: var(--success);
  background: color-mix(in srgb, var(--success) 12%, var(--surface));
}

.calendar-event.step {
  border-left-color: var(--warning);
  background: color-mix(in srgb, var(--warning) 12%, var(--surface));
}

.calendar-event-type {
  color: var(--muted);
  font-weight: 800;
  text-transform: uppercase;
  font-size: 10px;
}

.drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(20, 31, 42, .42);
  z-index: 90;
}

.drawer {
  position: fixed;
  inset: 0 0 0 auto;
  width: min(760px, 100%);
  overflow-y: auto;
  z-index: 100;
  padding: 24px;
  background: var(--glass);
  border-left: 1px solid var(--line);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.drawer-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.stack { display: grid; gap: 14px; }
.split { display: grid; grid-template-columns: minmax(300px, 360px) minmax(0, 1fr); gap: 18px; align-items: start; }
.workflow-grid { display: grid; grid-template-columns: minmax(320px, 420px) minmax(0, 1fr); gap: 18px; align-items: start; }
.empty { color: var(--muted); padding: 16px; border: 1px dashed var(--line-strong); border-radius: var(--radius); background: var(--surface-soft); }
.muted { color: var(--muted); }
.toast-stack { position: fixed; right: 18px; bottom: 18px; display: grid; gap: 8px; z-index: 150; }
.toast { background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow); border-radius: var(--radius); padding: 12px 14px; }
.form-message { display: block; min-height: 20px; color: var(--danger); font-weight: 600; }
.cards-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }
.compact-card { border: 1px solid var(--line); border-radius: var(--radius); padding: 12px; background: var(--surface); display: grid; gap: 10px; }

.compact-heading {
  margin-bottom: 10px;
}

.home-page {
  margin-bottom: 20px;
}

.project-filter-panel {
  margin-bottom: 12px;
}

.filter-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 8px;
  max-height: 220px;
  overflow-y: auto;
}

.home-projects-panel {
  margin-bottom: 12px;
}

.project-rail {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(240px, 310px);
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 4px;
}

.project-pill {
  min-height: 76px;
  display: grid;
  align-content: center;
  gap: 6px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
  background: var(--surface);
  color: var(--text);
  text-align: left;
  cursor: pointer;
}

.project-pill span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.project-pill.active {
  border-color: var(--primary);
  background: var(--primary-soft);
}

.home-dashboard {
  display: grid;
  gap: 12px;
}

.project-work-panel,
.project-detail-panel {
  width: 100%;
}

.project-work-header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 12px;
}

.project-work-stats {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: end;
}

.task-row-list,
.task-card-grid,
.scroll-panel {
  display: grid;
  gap: 8px;
  max-height: min(320px, calc(100vh - var(--topbar-height) - 360px));
  overflow-y: auto;
  padding-right: 3px;
}

.task-card-grid {
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  align-items: start;
}

.search-panel {
  margin-top: 12px;
}

.task-row-card,
.home-task-card {
  width: 100%;
  min-height: 62px;
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: auto auto;
  gap: 6px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  background: var(--surface);
  color: var(--text);
  text-align: left;
  cursor: pointer;
  overflow: hidden;
}

.home-task-card {
  min-height: 86px;
  align-content: center;
}

.task-row-card strong,
.task-row-card span,
.home-task-card strong,
.home-task-card span,
.task-row-main > *,
.task-row-details > * {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.task-row-main,
.task-row-details {
  min-width: 0;
  display: grid;
  align-items: center;
  gap: 8px;
}

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

.task-row-details {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  color: var(--muted);
  font-size: 12px;
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: end;
  gap: 8px;
  margin-top: 10px;
}

@media (min-width: 901px) {
  .task-card {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto auto;
    gap: 8px;
    padding: 10px;
  }

  .task-card-main,
  .task-card-detail,
  .task-card .task-meta {
    min-width: 0;
  }

  .kanban-column {
    max-height: calc(100vh - var(--topbar-height) - 270px);
    overflow-y: auto;
  }
}

.task-bucket-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(240px, 1fr));
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 6px;
}

.task-bucket {
  min-width: 220px;
  padding: 12px;
}

.task-bucket h2 {
  margin-bottom: 10px;
  font-size: 15px;
}

.task-strip {
  display: grid;
  gap: 8px;
}

.task-mini {
  min-height: 82px;
  text-align: left;
  cursor: pointer;
}

.inline-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 40px;
  gap: 8px;
  align-items: end;
  margin-top: 12px;
}

.comment-form {
  grid-template-columns: minmax(0, 1fr) 40px;
  align-items: start;
}

.member-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(120px, 150px) 40px;
  gap: 8px;
  align-items: end;
}

.project-list-button {
  text-align: left;
  cursor: pointer;
}

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

.preference-item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 12px;
  min-height: 48px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
}

.preference-item input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.switch-ui {
  width: 42px;
  height: 24px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: var(--surface-soft);
  position: relative;
  transition: background var(--transition), border-color var(--transition);
}

.switch-ui::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--muted);
  transition: transform var(--transition), background var(--transition);
}

.preference-item:has(input:checked) .switch-ui {
  background: var(--primary-soft);
  border-color: var(--primary);
}

.preference-item:has(input:checked) .switch-ui::after {
  transform: translateX(18px);
  background: var(--primary);
}

.preference-item input:focus-visible + .switch-ui {
  outline: 3px solid color-mix(in srgb, var(--primary) 35%, transparent);
  outline-offset: 2px;
}

@media (max-width: 900px) {
  .topbar { padding: 0 14px; gap: 10px; }
  .topbar-brand { min-width: 0; }
  .topbar-actions { margin-left: auto; }
  .icon-btn.nav-toggle { display: inline-grid; }
  .topbar-nav {
    position: absolute;
    top: var(--topbar-height);
    left: 0;
    right: 0;
    display: none;
    padding: 10px 14px;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
  }
  .topbar.open .topbar-nav { display: grid; }
  .topbar-user { display: none; }
  .page-shell { width: min(100% - 24px, 1540px); margin-top: 18px; }
  .page-heading, .split, .workflow-grid { grid-template-columns: 1fr; display: grid; align-items: stretch; }
  form.toolbar { grid-template-columns: minmax(0, 1fr) 40px; justify-content: stretch; }
  .grid { grid-template-columns: 1fr; }
  .span-2 { grid-column: auto; }
  .kanban { grid-template-columns: 1fr; }
  .calendar-toolbar { display: grid; }
  .calendar-actions { justify-content: start; }
  .calendar-panel { overflow-x: auto; }
  .calendar-grid { min-width: 760px; }
  .calendar-grid.month,
  .calendar-grid.week { height: 560px; }
  .project-rail { grid-auto-columns: minmax(220px, 78vw); }
  .project-work-header { display: grid; }
  .project-work-stats { justify-content: start; }
  .task-card-grid { grid-template-columns: 1fr; }
  .task-row-card,
  .home-task-card {
    grid-template-columns: 1fr;
    min-height: 0;
  }
  .task-bucket-grid { grid-template-columns: repeat(3, minmax(220px, 78vw)); }
  .member-row { grid-template-columns: 1fr; }
  .table-shell table { min-width: 0; }
  .responsive-table thead { display: none; }
  .responsive-table, .responsive-table tbody, .responsive-table tr, .responsive-table td { display: block; width: 100%; }
  .responsive-table tr { border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 10px; background: var(--surface); }
  .responsive-table td { border-bottom: 1px solid var(--line); }
  .responsive-table td::before { content: attr(data-label); display: block; font-size: 12px; color: var(--muted); font-weight: 700; margin-bottom: 3px; }
}