:root {
  font-family: system-ui, sans-serif;
  color: #1f2937;
  background: #f3f4f6;
}

body {
  margin: 0;
}

.panel {
  max-width: 40rem;
  margin: 6rem auto;
  padding: 2rem;
  border-radius: 0.75rem;
  background: white;
  box-shadow: 0 0.25rem 1rem rgb(0 0 0 / 8%);
}

h1 {
  margin-top: 0;
}

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

button {
  padding: 0.65rem 1rem;
  border: 0;
  border-radius: 0.4rem;
  color: white;
  background: #2563eb;
  cursor: pointer;
}

button:disabled,
input:disabled,
select:disabled,
textarea:disabled {
  cursor: not-allowed;
  opacity: 0.65;
}

.secondary {
  margin-top: 1rem;
  color: #1f2937;
  background: #e5e7eb;
}

.user-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

form {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.75rem;
}

input {
  box-sizing: border-box;
  width: 100%;
  padding: 0.6rem;
  border: 1px solid #9ca3af;
  border-radius: 0.4rem;
}

select {
  box-sizing: border-box;
  width: 100%;
  padding: 0.6rem;
  border: 1px solid #9ca3af;
  border-radius: 0.4rem;
  background: white;
}

textarea {
  box-sizing: border-box;
  width: 100%;
  padding: 0.6rem;
  border: 1px solid #9ca3af;
  border-radius: 0.4rem;
  resize: vertical;
}

.error {
  margin: 0;
  color: #b91c1c;
}

.task-app {
  min-height: 100vh;
  padding: 2rem clamp(1rem, 4vw, 4rem);
  background: #f3f4f6;
}

.app-header,
.board-toolbar,
.user-controls,
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.app-header {
  margin: 0 auto 2rem;
  max-width: 90rem;
}

.app-header h1,
.eyebrow {
  margin: 0;
}

.eyebrow {
  color: #64748b;
  font-weight: 600;
}

.user-controls {
  justify-content: flex-end;
}

.compact {
  margin-top: 0;
}

.board-toolbar {
  min-height: 2.75rem;
  margin: 0 auto 1rem;
  max-width: 90rem;
}

.link-button {
  padding: 0.25rem 0.5rem;
  color: #2563eb;
  background: transparent;
  text-decoration: underline;
}

.board {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin: 0 auto;
  max-width: 90rem;
}

.board-column {
  min-height: 20rem;
  padding: 1rem;
  border-radius: 0.75rem;
  background: #e5e7eb;
}

.board-column h2 {
  margin: 0 0 1rem;
  font-size: 1.1rem;
}

.task-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.task-card {
  padding: 1rem;
  border-radius: 0.5rem;
  background: white;
  box-shadow: 0 0.125rem 0.4rem rgb(0 0 0 / 8%);
}

.task-card h3,
.task-card p {
  margin: 0;
}

.task-assignment {
  margin-top: 0.9rem;
}

.task-assignee {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: #475569;
  font-size: 0.9rem;
}

.task-assignee-button {
  padding: 0.25rem 0;
  color: #2563eb;
  background: transparent;
}

.user-icon {
  flex: 0 0 auto;
}

.assignee-select-label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.assignee-select-label select {
  width: auto;
  min-width: 9rem;
}

.field-label-uppercase {
  color: #64748b;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.task-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
}

.points-badge {
  flex: 0 0 auto;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  color: #1e3a8a;
  background: #dbeafe;
  font-size: 0.8rem;
  font-weight: 700;
  line-height: 1.25;
}

.task-card p {
  margin-top: 0.5rem;
  color: #475569;
  white-space: pre-wrap;
}

.task-status-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.9rem;
}

.status-button {
  padding: 0.4rem 0.65rem;
  color: #1e3a8a;
  background: #dbeafe;
  font-size: 0.85rem;
}

.task-error {
  margin-top: 0.6rem;
  font-size: 0.85rem;
}

.field-help {
  margin: -0.25rem 0 0;
  color: #64748b;
  font-size: 0.85rem;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 1rem;
  background: rgb(15 23 42 / 55%);
}

.modal {
  width: min(100%, 34rem);
  padding: 1.5rem;
  border-radius: 0.75rem;
  background: white;
  box-shadow: 0 1rem 3rem rgb(0 0 0 / 25%);
}

.modal-header {
  margin-bottom: 1.25rem;
}

.modal-header h2 {
  margin: 0;
}

.close-button {
  padding: 0.2rem 0.55rem;
  color: #475569;
  background: transparent;
  font-size: 1.75rem;
  line-height: 1;
}

@media (max-width: 48rem) {
  .panel {
    margin: 2rem 1rem;
  }

  .app-header {
    align-items: flex-start;
  }

  .user-controls {
    flex-direction: column;
    align-items: flex-end;
  }

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

  .board-column {
    min-height: 8rem;
  }
}