:root {
  --bg: #121212;
  --surface: #181818;
  --surface-2: #1c1c1c;
  --border: #2a2a2a;
  --text: #ffffff;
  --muted: #9a9a9a;
  --muted-2: #6b6b6b;
  --accent: #f7d081;
  --accent-text: #1a1a1a;
  --radius: 12px;
  --radius-sm: 8px;
  --font: "Inter", system-ui, -apple-system, sans-serif;
}

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

html {
  -webkit-font-smoothing: antialiased;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.45;
  color: var(--text);
  background: var(--bg);
}

.app {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  min-height: 100vh;
  max-width: 1100px;
  margin: 0 auto;
}

.rail {
  padding: 1.5rem 1.25rem;
  border-right: 1px solid var(--border);
  background: var(--bg);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--text);
  margin-bottom: 2rem;
}

.brand__icon {
  display: flex;
  color: var(--accent);
}

.brand__name {
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.02em;
}

.rail__label {
  margin: 0 0 0.75rem;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted-2);
}

.rail__label--spaced {
  margin-top: 1.75rem;
}

.list-nav {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.list-nav__item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.list-nav__pill {
  display: flex;
  align-items: stretch;
  background: var(--accent);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.list-nav__btn {
  flex: 1;
  display: flex;
  align-items: center;
  padding: 0.55rem 0.65rem 0.55rem 0.75rem;
  border: none;
  border-radius: 0;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  transition: background 0.15s ease, color 0.15s ease;
}

.list-nav__pill .list-nav__btn {
  color: var(--accent-text);
  font-weight: 600;
}

.list-nav__item > .list-nav__btn:hover {
  background: var(--surface);
}

.list-nav__pill .list-nav__btn:hover {
  background: rgba(0, 0, 0, 0.05);
}

.list-nav__remove {
  flex-shrink: 0;
  width: 34px;
  border: none;
  border-radius: 0;
  background: transparent;
  color: var(--accent-text);
  font-size: 1.15rem;
  line-height: 1;
  cursor: pointer;
  opacity: 0.75;
  transition: opacity 0.15s ease, background 0.15s ease;
}

.list-nav__remove:hover {
  opacity: 1;
  background: rgba(0, 0, 0, 0.1);
}

.new-list {
  margin-top: 1rem;
  padding: 0;
  border: none;
  background: none;
  color: var(--muted);
  font: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: color 0.15s ease;
}

.new-list:hover {
  color: var(--text);
}

.main {
  padding: 2rem 2.25rem 2.5rem;
  min-width: 0;
}

.main__header {
  margin-bottom: 1.75rem;
}

.main__greet {
  margin: 0;
  font-size: clamp(1.5rem, 3vw, 1.875rem);
  font-weight: 700;
  letter-spacing: -0.03em;
}

.main__sub {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 0.9375rem;
}

.add-bar {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.add-bar__row {
  display: flex;
  gap: 0.5rem;
  align-items: stretch;
}

.add-bar__row .add-bar__input {
  flex: 1;
  min-width: 0;
}

.add-bar__submit {
  flex-shrink: 0;
  padding: 0.85rem 1.35rem;
  border: none;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--accent-text);
  font: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: filter 0.15s ease, transform 0.1s ease;
}

.add-bar__submit:hover {
  filter: brightness(1.05);
}

.add-bar__submit:active {
  transform: scale(0.98);
}

.add-bar__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 0.65rem 1rem;
}

.add-bar__field {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.add-bar__field-label {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted-2);
}

.add-bar__select {
  min-width: 3.5rem;
  padding: 0.45rem 0.6rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
  font-size: 0.8125rem;
  cursor: pointer;
}

.add-bar__select:focus {
  outline: none;
  border-color: var(--accent);
}

.add-bar__date {
  padding: 0.45rem 0.6rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
  font-size: 0.8125rem;
  color-scheme: dark;
  min-height: 2.1rem;
  cursor: pointer;
}

.add-bar__date:focus {
  outline: none;
  border-color: var(--accent);
}

.main__sort {
  margin-bottom: 1.25rem;
}

.main__sort-label {
  margin-bottom: 0.5rem;
}

.main__sort .sort-grid {
  max-width: 440px;
}

.add-bar__input {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-size: 0.9375rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.add-bar__input::placeholder {
  color: var(--muted-2);
}

.add-bar__input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.add-bar__tag {
  max-width: 160px;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
  font-size: 0.8125rem;
}

.add-bar__tag:focus {
  outline: none;
  border-color: var(--muted);
}

.task-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.task-card {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr auto;
  grid-template-rows: auto auto;
  align-items: center;
  gap: 0.25rem 1rem;
  padding: 0.85rem 2.15rem 0.85rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.15s ease;
}

.task-card:hover {
  border-color: #3a3a3a;
}

.task-card.is-done {
  opacity: 0.72;
}

.task-card__check {
  grid-column: 1;
  grid-row: 1 / 3;
  align-self: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid var(--muted-2);
  background: transparent;
  padding: 0;
  cursor: pointer;
  flex-shrink: 0;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.task-card__check:hover:not(:disabled) {
  border-color: var(--accent);
}

.task-card__check:disabled {
  cursor: default;
  border-color: var(--accent);
  background: var(--accent);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='10' viewBox='0 0 12 10' fill='none'%3E%3Cpath d='M1 5l3.5 3.5L11 1' stroke='%231a1a1a' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
}

.task-card__body {
  grid-column: 2;
  grid-row: 1 / 3;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
  align-self: center;
}

.task-card__date {
  font-size: 0.75rem;
  color: var(--muted);
}

.task-card__due {
  font-size: 0.75rem;
  color: var(--accent);
  font-weight: 500;
}

.task-card__title {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text);
  word-break: break-word;
}

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

.task-card.is-done .task-card__due {
  color: var(--muted);
  font-weight: 400;
}

.task-card__stars {
  display: inline-flex;
  gap: 0.08rem;
  margin-top: 0.15rem;
  letter-spacing: -0.05em;
}

.task-card__star {
  font-size: 0.8rem;
  line-height: 1;
  color: var(--muted-2);
  opacity: 0.55;
}

.task-card__star.is-on {
  color: var(--accent);
  opacity: 1;
}

.task-card__tag {
  grid-column: 3;
  grid-row: 1 / 3;
  align-self: center;
  font-size: 0.8125rem;
  color: var(--muted);
  font-weight: 500;
}

.task-card__del {
  position: absolute;
  top: 6px;
  right: 8px;
  width: 26px;
  height: 26px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--muted-2);
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  opacity: 0.45;
  transition: opacity 0.15s ease, background 0.15s ease, color 0.15s ease;
}

@media (hover: hover) {
  .task-card__del {
    opacity: 0;
  }

  .task-card:hover .task-card__del {
    opacity: 1;
  }
}

.task-card__del:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

.empty {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--muted);
}

.empty[hidden] {
  display: none;
}

.empty__title {
  margin: 0;
  font-weight: 600;
  color: var(--text);
}

.empty__hint {
  margin: 0.35rem 0 0;
  font-size: 0.875rem;
}

.sort-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.45rem;
}

.sort-pill {
  padding: 0.55rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--muted);
  font: inherit;
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.sort-pill:hover:not(.is-active) {
  border-color: #3a3a3a;
  color: var(--text);
}

.sort-pill.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
}

@media (max-width: 960px) {
  .app {
    grid-template-columns: 1fr;
  }

  .rail {
    border-right: none;
    border-left: none;
    border-bottom: 1px solid var(--border);
  }

  .main {
    padding: 1.5rem 1.25rem;
  }
}