:root {
  --bg: #f5f1e8;
  --panel: #fffdf8;
  --line: #d7c9b0;
  --text: #2e2a24;
  --muted: #6f665b;
  --accent: #8c4f2d;
  --accent-soft: #f0dfd0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Serif SC", "Source Han Serif SC", serif;
  color: var(--text);
  background:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.65), transparent 35%),
    linear-gradient(180deg, #efe6d5 0%, var(--bg) 100%);
  line-height: 1.7;
}

a {
  color: var(--accent);
}

code {
  padding: 0.1rem 0.35rem;
  border-radius: 0.3rem;
  background: var(--accent-soft);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.95em;
}

.container {
  width: min(900px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  padding: 3rem 0 2rem;
}

.site-title {
  display: inline-block;
  margin-bottom: 0.5rem;
  color: var(--text);
  font-size: clamp(2rem, 4vw, 3rem);
  text-decoration: none;
}

.site-subtitle,
.muted,
.meta {
  color: var(--muted);
}

.panel {
  background: rgba(255, 253, 248, 0.92);
  border: 1px solid var(--line);
  border-radius: 1.1rem;
  padding: 1.4rem;
  box-shadow: 0 10px 30px rgba(89, 67, 46, 0.08);
}

.search-form {
  margin: 1rem 0 0.4rem;
}

.search-label {
  display: block;
  margin-bottom: 0.45rem;
  font-weight: 600;
}

.search-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.search-input {
  flex: 1 1 280px;
  min-width: 0;
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 0.8rem;
  background: #fffdfa;
  color: var(--text);
  font: inherit;
}

.search-button,
.clear-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.8rem;
  padding: 0.75rem 1rem;
  border-radius: 0.8rem;
}

.search-button {
  border: 0;
  background: var(--accent);
  color: #fffaf4;
  cursor: pointer;
  font: inherit;
}

.clear-link {
  border: 1px solid var(--line);
  color: var(--text);
  text-decoration: none;
  background: #fffdfa;
}

.note-list {
  display: grid;
  gap: 1rem;
  margin: 1rem 0 3rem;
}

.note-card h2,
.note-header h1 {
  margin-top: 0;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.95rem;
}

.back-link {
  margin-bottom: 1rem;
}

.note-page {
  margin-bottom: 3rem;
}

.note-content h1,
.note-content h2,
.note-content h3 {
  line-height: 1.3;
}

.note-content pre {
  overflow-x: auto;
  padding: 1rem;
  border-radius: 0.8rem;
  background: #2b241d;
  color: #f8f2e8;
}

.note-content blockquote {
  margin: 1rem 0;
  padding-left: 1rem;
  border-left: 4px solid var(--line);
  color: var(--muted);
}

.note-content table {
  width: 100%;
  border-collapse: collapse;
}

.note-content th,
.note-content td {
  padding: 0.6rem;
  border: 1px solid var(--line);
  text-align: left;
}

.empty-state {
  margin-top: 1rem;
}

@media (max-width: 640px) {
  .site-header {
    padding-top: 2rem;
  }

  .panel {
    padding: 1rem;
  }

  .search-button,
  .clear-link {
    width: 100%;
  }
}