*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface-2: #222634;
  --border: #2a2d3a;
  --accent: #4f8ef7;
  --accent-dim: #1e3a6e;
  --text: #e2e4ed;
  --muted: #7a7f96;
  --success: #3ecf8e;
  --warn: #f5b04c;
  --error: #f66;
  --radius: 10px;
  --font: 'SF Mono', 'Fira Code', monospace;
}

[hidden] {
  display: none !important;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  min-height: 100vh;
  padding: 0 0 60px;
}

/* ---------- header ---------- */

header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 40px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 6px 12px;
  border-radius: 6px;
}

.tagline {
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 1px;
}

nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.who {
  margin-right: 10px;
  font-size: 13px;
}

/* ---------- layout ---------- */

main {
  display: flex;
  flex-direction: column;
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

main.narrow {
  max-width: 480px;
}

.columns {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) minmax(0, 2fr);
  gap: 24px;
  align-items: start;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-width: 0;
}

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
}

h2 {
  font-size: 13px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
}

.card-head h2 {
  border-bottom: none;
  padding-bottom: 0;
}

/* ---------- forms ---------- */

.form-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.5px;
  flex: 1;
  min-width: 0;
}

.optional {
  font-size: 11px;
  opacity: 0.7;
}

.row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

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

input,
textarea,
select {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-family: var(--font);
  font-size: 13px;
  padding: 10px 14px;
  outline: none;
  transition: border-color 0.15s;
  width: 100%;
  min-width: 0;
}

textarea {
  resize: vertical;
  line-height: 1.5;
}

select {
  cursor: pointer;
}

input[type="date"] {
  color-scheme: dark;
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--accent);
}

input:disabled {
  color: var(--muted);
}

input::placeholder,
textarea::placeholder {
  color: var(--muted);
}

.hint {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.5;
}

/* ---------- buttons ---------- */

button {
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 6px;
  color: #fff;
  cursor: pointer;
  font-family: var(--font);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  padding: 10px 18px;
  transition: opacity 0.15s, background 0.15s, border-color 0.15s;
  align-self: flex-start;
  white-space: nowrap;
}

button:hover {
  opacity: 0.85;
}

button:active {
  opacity: 0.7;
}

button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

button:focus-visible,
input[type="checkbox"]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

button.ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
  font-weight: 500;
}

button.ghost:hover {
  border-color: var(--accent);
  opacity: 1;
}

button.ghost.active {
  border-color: var(--accent);
  color: var(--accent);
}

button.small {
  padding: 6px 10px;
  font-size: 12px;
}

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

.danger-text {
  color: var(--error) !important;
}

.danger-zone {
  border-color: #4a2a2e;
}

/* ---------- auth tabs ---------- */

.tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
}

.tab {
  flex: 1;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  color: var(--muted);
  padding: 10px;
  align-self: stretch;
}

.tab.active {
  color: var(--text);
  border-bottom-color: var(--accent);
}

/* ---------- stats ---------- */

.stats {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}

.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat span {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0;
}

.stat.warn span {
  color: var(--warn);
}

.stat.bad span {
  color: var(--error);
}

/* ---------- toolbar ---------- */

.toolbar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.toolbar input {
  flex: 2 1 180px;
  width: auto;
}

.toolbar select {
  flex: 1 1 140px;
  width: auto;
}

.segmented {
  display: flex;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  align-self: flex-start;
  max-width: 100%;
}

.segmented button {
  background: transparent;
  border: none;
  border-radius: 0;
  color: var(--muted);
  font-weight: 500;
  padding: 7px 14px;
  font-size: 12px;
}

.segmented button + button {
  border-left: 1px solid var(--border);
}

.segmented button.active {
  background: var(--accent-dim);
  color: var(--text);
}

/* ---------- task list ---------- */

.task-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.task {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-left: 3px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
}

.task.overdue {
  border-left-color: var(--error);
}

.task.editing {
  display: block;
  border-left-color: var(--accent);
}

.task-check {
  width: 16px;
  height: 16px;
  margin-top: 2px;
  accent-color: var(--success);
  cursor: pointer;
  flex-shrink: 0;
}

.task-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

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

.task-title {
  font-weight: 600;
  overflow-wrap: anywhere;
}

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

.task.done .task-desc {
  opacity: 0.6;
}

.task-desc {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.6;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.task-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.empty {
  color: var(--muted);
  font-size: 13px;
  text-align: center;
  padding: 24px 0;
}

/* ---------- pills & badges ---------- */

.pill,
.badge {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
  white-space: nowrap;
}

.pill.high {
  color: var(--error);
  border-color: currentColor;
}

.pill.medium {
  color: var(--warn);
  border-color: currentColor;
}

.pill.low {
  color: var(--success);
  border-color: currentColor;
}

.pill.warn {
  color: var(--warn);
}

.pill.bad {
  color: var(--error);
  border-color: currentColor;
}

.badge.admin {
  color: var(--accent);
  border-color: var(--accent);
}

/* ---------- admin table ---------- */

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th {
  text-align: left;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--muted);
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}

td {
  padding: 10px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

td input {
  width: auto;
  padding: 6px 10px;
  margin-right: 6px;
}

.row-actions {
  display: flex;
  gap: 6px;
  justify-content: flex-end;
}

.mono {
  font-family: var(--font);
}

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

/* ---------- toast ---------- */

#toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--success);
  border-radius: 8px;
  padding: 12px 18px;
  font-size: 13px;
  max-width: calc(100% - 32px);
  z-index: 10;
}

#toast.err {
  border-left-color: var(--error);
}

/* ---------- responsive ---------- */

@media (max-width: 820px) {
  header {
    padding: 16px;
  }

  main {
    padding: 0 16px;
  }

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

  .stats {
    grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  }
}

@media (max-width: 520px) {
  .task {
    flex-wrap: wrap;
  }

  .task-actions {
    width: 100%;
    justify-content: flex-end;
  }

  .tagline {
    display: none;
  }
}