:root {
  color-scheme: light;
  --text: #1f2937;
  --muted: #6b7280;
  --surface: #f8fafc;
  --line: #e5e7eb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 1rem;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text);
  background: var(--surface);
}

nav[aria-label="Main navigation"] {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding: 0.625rem 0.875rem;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background: #fff;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.nav-links {
  display: flex;
  gap: 0.375rem;
  align-items: center;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 0.375rem 0.75rem;
  border: 1px solid transparent;
  border-radius: 0.5rem;
  color: var(--text);
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  transition: background-color 0.15s ease;
}

.nav-link:hover {
  background: #eef2ff;
  color: #0f4c81;
}

.nav-link:focus-visible {
  outline: 2px solid #0f4c81;
  outline-offset: 2px;
}

.nav-user {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.nav-username {
  display: inline-flex;
  align-items: center;
  line-height: 1.2;
  color: var(--muted);
  font-weight: 600;
}

.nav-signout {
  display: inline-flex;
  align-items: center;
  padding: 0.375rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: #fff;
  color: var(--text);
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  transition:
    background-color 0.15s ease,
    border-color 0.15s ease;
}

.nav-signout:hover {
  background: #f3f4f6;
  border-color: #cbd5e1;
}

.nav-signout:focus-visible {
  outline: 2px solid #0f4c81;
  outline-offset: 2px;
}

a {
  color: #0f4c81;
}

a.button-link {
  display: inline-block;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 0.375rem;
  background: #fff;
  color: var(--text);
  text-decoration: none;
  margin-bottom: 0.75rem;
}

a.button-link:hover {
  background: #f3f4f6;
}

a.button-link:focus-visible {
  outline: 2px solid #0f4c81;
  outline-offset: 2px;
}

.about-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(220px, 0.75fr);
  gap: 1.5rem;
  align-items: start;
  margin-top: 1rem;
}

.about-panel,
.about-brand {
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background: #fff;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.about-panel h2 {
  margin-top: 0;
  margin-bottom: 1rem;
}

.technology-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
}

.technology-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 11rem;
  padding: 0.625rem 0.875rem;
  border: 1px solid var(--line);
  border-radius: 0.625rem;
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  transition:
    background-color 0.15s ease,
    border-color 0.15s ease;
}

.technology-link:hover {
  background: #eef2ff;
  border-color: #c7d2fe;
}

.technology-link img {
  display: block;
  width: 3.75rem;
  height: 3.75rem;
  object-fit: contain;
  border-radius: 0.5rem;
}

.about-brand {
  display: grid;
  justify-items: center;
  gap: 0.75rem;
  text-align: center;
}

.about-brand img {
  display: block;
}

h1 {
  margin-top: 0;
}

form {
  display: grid;
  gap: 0.75rem;
  max-width: 24rem;
}

@media (max-width: 640px) {
  .about-layout {
    grid-template-columns: 1fr;
  }

  .technology-link {
    flex: 1 1 100%;
  }
}

label {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--muted);
}

input,
button {
  font: inherit;
}

input {
  width: 100%;
  padding: 0.5rem 0.625rem;
  border: 1px solid var(--line);
  border-radius: 0.375rem;
}

button {
  appearance: none;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 0.375rem;
  background: #fff;
  cursor: pointer;
}

button.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.25rem;
  width: 2rem;
  height: 2rem;
  border-color: transparent;
  border-radius: 0.5rem;
  background: transparent;
}

#tasks {
  margin-top: 0.5rem;
  overflow-x: auto;
}

table.tasks-grid {
  width: 100%;
  min-width: 44rem;
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background: #fff;
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.06);
}

.tasks-grid th,
.tasks-grid td {
  padding: 0.875rem 1rem;
  text-align: left;
  border-bottom: 1px solid #eef2f7;
  vertical-align: middle;
}

.tasks-grid th {
  color: var(--muted);
  background: #f8fafc;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.tasks-grid tbody tr:last-child td {
  border-bottom: 0;
}

.tasks-grid tbody tr {
  transition: background-color 0.15s ease;
}

.tasks-grid tbody tr:hover {
  background: #f8fbff;
}

.task-status {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.625rem;
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1.2;
}

.task-status-active {
  background: #e0f2fe;
  color: #075985;
}

.task-status-completed {
  background: #dcfce7;
  color: #166534;
}

.task-status-removed {
  background: #f1f5f9;
  color: #475569;
}

button.icon-button:hover {
  border-color: var(--line);
  background: #f1f5f9;
}

button.icon-button:focus-visible {
  outline: 2px solid #0f4c81;
  outline-offset: 2px;
}

td.task-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

td.task-actions form {
  display: inline-flex;
  gap: 0;
  max-width: none;
}

img.button-icon {
  display: block;
  width: 1rem;
  height: 1rem;
}