:root {
  --bg: #f4f5f7;
  --surface: #ffffff;
  --ink: #1d2330;
  --muted: #667085;
  --line: #e3e6ec;
  --accent: #4f46e5;
  --accent-soft: #eef0ff;
  --highlight: #ffe58a;
  --focus: #4f46e5;
  --backdrop: rgb(15 18 30 / 0.45);
  --radius: 12px;
  --speed: 160ms;
  --shadow: 0 24px 60px rgb(15 18 30 / 0.25);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

:root[data-theme="dark"] {
  --bg: #111318;
  --surface: #1b1e26;
  --ink: #e8eaf0;
  --muted: #9aa1b2;
  --line: #2c313d;
  --accent: #8b85ff;
  --accent-soft: #272a45;
  --highlight: #6b5a12;
  --focus: #8b85ff;
  --backdrop: rgb(0 0 0 / 0.6);
}

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

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.visually-hidden {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

kbd {
  display: inline-block;
  padding: 0.1em 0.45em;
  border: 1px solid var(--line);
  border-block-end-width: 2px;
  border-radius: 5px;
  background: var(--surface);
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 0.8em;
}

.page {
  max-inline-size: 640px;
  margin-inline: auto;
  padding: 4rem 1.25rem;
}

.page h1 {
  margin-block: 0 0.5rem;
}

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

.open-palette {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  inline-size: 100%;
  max-inline-size: 360px;
  padding: 0.75rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--muted);
  font: inherit;
  cursor: pointer;
}

.open-palette:hover {
  border-color: var(--accent);
}

.last-run {
  min-block-size: 1.5em;
}

.palette {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  justify-items: center;
  align-items: start;
  padding: 12vh 1rem 1rem;
}

.palette[hidden] {
  display: none;
}

.palette-backdrop {
  position: fixed;
  inset: 0;
  background: var(--backdrop);
  animation: fade-in var(--speed) ease-out;
}

.palette-panel {
  position: relative;
  inline-size: min(560px, 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
  animation: panel-in var(--speed) ease-out;
}

.palette-search {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem;
  border-block-end: 1px solid var(--line);
}

.palette-input {
  flex: 1;
  min-inline-size: 0;
  padding: 0.65rem 0.75rem;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 1.05rem;
}

.palette-input:focus-visible {
  outline-offset: -2px;
}

.palette-close {
  padding: 0.3rem 0.6rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.8rem;
  cursor: pointer;
}

.palette-list {
  max-block-size: min(360px, 55vh);
  margin: 0;
  padding: 0.4rem;
  overflow-y: auto;
  list-style: none;
}

.palette-option {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.6rem 0.75rem;
  border-radius: 8px;
  cursor: pointer;
}

.palette-option[aria-selected="true"] {
  background: var(--accent-soft);
}

.palette-option[aria-selected="true"]::before {
  content: "";
  position: absolute;
  inset-block: 0.4rem;
  inset-inline-start: 0;
  inline-size: 3px;
  border-radius: 3px;
  background: var(--accent);
}

.palette-option mark {
  background: var(--highlight);
  color: inherit;
  border-radius: 2px;
}

.option-group {
  color: var(--muted);
  font-size: 0.8rem;
  white-space: nowrap;
}

.palette-empty {
  margin: 0;
  padding: 1.5rem;
  text-align: center;
  color: var(--muted);
}

.palette-hints {
  display: flex;
  gap: 1rem;
  margin: 0;
  padding: 0.5rem 0.9rem;
  border-block-start: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.8rem;
}

@keyframes fade-in {
  from {
    opacity: 0;
  }
}

@keyframes panel-in {
  from {
    opacity: 0;
    transform: translateY(-8px) scale(0.98);
  }
}

@media (max-width: 480px) {
  .palette {
    padding-block-start: 1rem;
    padding-inline: 0.5rem;
  }

  .palette-list {
    max-block-size: 60vh;
  }

  .option-group {
    display: none;
  }

  .palette-hints {
    display: none;
  }

  .page {
    padding-block: 2.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .palette-backdrop,
  .palette-panel {
    animation: none;
  }
}