:root {
  --bg: #f7f3ea;
  --paper: #fffdf8;
  --paper-strong: #faf7f1;
  --text: #2f2a24;
  --subtext: #6a6259;
  --accent: #7f9a8a;
  --accent-dark: #587261;
  --line: #ddd4c8;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
  --max: 1100px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: "Hiragino Sans", "Yu Gothic", "YuGothic", sans-serif;
  line-height: 1.8;
  letter-spacing: 0.02em;
}

a {
  color: var(--accent-dark);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.12em;
}

a:hover {
  opacity: 0.86;
}

.container {
  width: min(92%, var(--max));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 243, 234, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding: 16px 0;
}

.site-title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
}

.header-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.header-links a {
  color: var(--subtext);
  text-decoration: none;
  font-size: 0.95rem;
}

.hero {
  padding: 72px 0 32px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent-dark);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.page-title {
  margin: 0 0 18px;
  font-size: clamp(2rem, 4vw, 3.1rem);
  line-height: 1.3;
}

.lead {
  max-width: 860px;
  margin: 0;
  color: #4b433c;
  font-size: 1.05rem;
}

.utility-bar {
  margin-top: 28px;
  display: grid;
  gap: 16px;
}

.search-box {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px;
  box-shadow: var(--shadow);
}

.search-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 700;
  color: var(--accent-dark);
}

.search-input {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  font: inherit;
}

.quick-nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.quick-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--paper);
  text-decoration: none;
  color: var(--accent-dark);
  font-weight: 700;
}

.archive-wrap {
  padding: 8px 0 64px;
}

.year-section {
  margin-bottom: 28px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.year-header {
  padding: 24px 24px 18px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #fcfaf5 0%, #f7f3ea 100%);
}

.year-title {
  margin: 0;
  font-size: 1.5rem;
  line-height: 1.4;
}

.year-subtitle {
  margin: 8px 0 0;
  color: var(--subtext);
  font-size: 0.96rem;
}

.article-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.article-item {
  padding: 18px 24px;
  border-top: 1px solid var(--line);
}

.article-item:first-child {
  border-top: 0;
}

.article-link {
  color: inherit;
  text-decoration: none;
  display: block;
}

.article-link:hover .article-title {
  color: var(--accent-dark);
}

.article-meta {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 6px;
}

.article-date {
  font-size: 0.95rem;
  color: var(--subtext);
  font-weight: 700;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 2px 8px;
  border-radius: 999px;
  background: #eef4ef;
  color: var(--accent-dark);
  font-size: 0.8rem;
  font-weight: 700;
  border: 1px solid #d4e0d7;
}

.badge.note {
  background: #f5efe3;
  border-color: #e7dcc8;
  color: #7a6645;
}

.article-title {
  margin: 0;
  font-size: 1.1rem;
  line-height: 1.6;
}

.article-note,
.article-url {
  margin: 8px 0 0;
  color: var(--subtext);
  font-size: 0.92rem;
  word-break: break-all;
}

.article-url code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.85rem;
}

.footer {
  padding: 32px 0 60px;
  border-top: 1px solid var(--line);
  color: var(--subtext);
}

.footer p {
  margin: 0.35em 0;
}

.hide {
  display: none !important;
}

.no-result {
  display: none;
  margin: 0 0 28px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--paper);
  color: var(--subtext);
}

@media (max-width: 768px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero {
    padding: 54px 0 26px;
  }

  .year-header,
  .article-item {
    padding-left: 18px;
    padding-right: 18px;
  }

  .page-title {
    font-size: 1.85rem;
  }
}