:root {
  --bg: #fafaf7;
  --fg: #1a1a1a;
  --muted: #6b6b6b;
  --accent: #2b6cb0;
  --border: #e2e2dc;
  --row-bg: #ffffff;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

#app {
  max-width: 720px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

.site-header {
  margin-bottom: 2.5rem;
}

.site-title {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0;
}

.theme-select {
  appearance: none;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.4rem 2rem 0.4rem 0.75rem;
  font-size: 0.9rem;
  color: var(--fg);
  cursor: pointer;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'><path d='M2 4l4 4 4-4' stroke='%236b6b6b' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right 0.65rem center;
}

.theme-select:focus {
  outline: none;
  border-color: var(--accent);
}

.about-btn {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.4rem 0.85rem;
  font-size: 0.9rem;
  color: var(--fg);
  font-weight: 500;
}

.about-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.about-content {
  background: var(--row-bg);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 2rem;
  font-family: inherit;
  line-height: 1.55;
}

.about-content h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.01em;
}

.about-close {
  font-size: 1.5rem;
  line-height: 1;
  color: var(--muted);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
}

.about-close:hover {
  background: #ececea;
  color: var(--fg);
}

.about-content code {
  background: #ececea;
  padding: 0.05em 0.35em;
  border-radius: 3px;
  font-size: 0.9em;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

.about-content a {
  color: var(--accent);
}

.about-credit,
.about-tip {
  font-size: 0.9rem;
  color: var(--muted);
  margin-top: 1.25rem;
}

.intro {
  color: var(--muted);
  margin: 0 0 2.5rem;
}

.intro code {
  background: #ececea;
  padding: 0.05em 0.35em;
  border-radius: 3px;
  font-size: 0.9em;
}

.people {
  gap: 1.75rem;
  margin-bottom: 2rem;
}

.person {
  background: var(--row-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem 1.75rem;
  width: 100%;
}

.version {
  color: var(--accent);
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.person-meta {
  border-top: 1px solid var(--border);
  padding-top: 0.85rem;
  width: 100%;
}

.name-input,
.date-input {
  background: transparent;
  border: 1px solid transparent;
  border-radius: 4px;
  padding: 0.25rem 0.4rem;
  margin: -0.25rem -0.4rem;
}

.name-input:focus,
.date-input:focus {
  outline: none;
  border-color: var(--accent);
  background: #fff;
}

.name-input {
  font-weight: 500;
}

.date-input {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.remove-btn {
  color: var(--muted);
  font-size: 1.25rem;
  line-height: 1;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  margin-left: auto;
}

.remove-btn:hover {
  color: #c53030;
  background: #fff0f0;
}

.add-btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  border: 1px dashed var(--border);
  border-radius: 6px;
  color: var(--muted);
  font-weight: 500;
}

.add-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.site-footer {
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--muted);
}

.site-footer a {
  color: var(--accent);
}