@import url('https://fonts.googleapis.com/css2?family=Jost:wght@300;400;500;600;700&display=swap');

:root {
  --ink: #0c0a09;
  --muted: #78716c;
  --line: #e7e5e4;
  --surface: #ffffff;
  --soft: #f5f5f4;
  --accent: #1c1917;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Jost", "Segoe UI", sans-serif;
  color: var(--ink);
  background: #ffffff;
  line-height: 1.7;
}

a {
  color: inherit;
  text-decoration: none;
}

.content-wrap {
  max-width: 600px;
  margin: 0 auto;
  padding: 0 20px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: #ffffff;
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
}

.site-title {
  font-weight: 600;
  font-size: 1.1rem;
}

.header-extra {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex: 1;
  min-width: 0;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-btn {
  border: 1px solid var(--line);
  background: #ffffff;
  color: var(--muted);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.header-btn:hover {
  background: var(--soft);
  color: var(--ink);
}

.main-content {
  padding: 10px 0 48px;
}

.filters {
  margin: 12px 0 6px;
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.header-filters {
  justify-content: flex-end;
  margin-left: auto;
  flex-wrap: nowrap;
  overflow-x: auto;
  max-width: 65%;
  min-width: 0;
  padding-bottom: 2px;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.header-filters::-webkit-scrollbar {
  display: none;
}

.filter-btn {
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
  flex: 0 0 auto;
}

.filter-btn:hover {
  background: var(--soft);
  color: var(--ink);
}

.filter-btn.is-active {
  background: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

.article-list {
  display: flex;
  flex-direction: column;
}

.year-title {
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--ink);
  margin: 8px 0 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.day-section {
  margin-top: 48px;
}

.day-articles .article-card:first-child {
  border-top: none;
}

.article-card {
  padding: 22px 8px;
  margin: 0 -8px;
  border-bottom: none;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.article-card:hover,
.article-card:focus-within,
.article-card:focus-visible {
  background: var(--soft);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 10px;
  flex-wrap: wrap;
}

.article-meta time {
  flex-shrink: 0;
}

.source-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.source-icon {
  width: 16px;
  height: 16px;
  border-radius: 4px;
  border: 1px solid var(--line);
  background: #ffffff;
  flex-shrink: 0;
}

.source-fallback {
  width: 16px;
  height: 16px;
  border-radius: 4px;
  border: 1px solid var(--line);
  background: var(--soft);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  color: var(--muted);
  text-transform: uppercase;
  flex-shrink: 0;
}

.source-name {
  font-weight: 400;
  color: var(--muted);
  min-width: 0;
  max-width: 260px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 0 1 auto;
}

.badge {
  font-size: 0.7rem;
  padding: 2px 6px;
  border-radius: 999px;
  background: var(--soft);
  color: var(--muted);
  flex-shrink: 0;
}

.meta-dot {
  color: var(--muted);
  flex-shrink: 0;
}

.article-title {
  display: block;
  margin-top: 6px;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--ink);
  transition: color 0.2s ease;
}

.article-card:hover .article-title,
.article-card:focus-within .article-title {
  color: #292524;
}

.article-summary {
  margin-top: 8px;
  color: #57534e;
  font-size: 0.92rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.empty-state {
  border: 1px dashed var(--line);
  border-radius: 12px;
  padding: 28px;
  text-align: center;
  color: var(--muted);
}

.empty-title {
  font-weight: 600;
  color: var(--ink);
}

.show-more-wrap {
  margin-top: 20px;
  text-align: center;
}

.show-more-btn {
  border: 1px solid var(--line);
  background: #ffffff;
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.show-more-btn:hover {
  background: var(--soft);
  border-color: #d6d3d1;
}

.show-more-btn:focus-visible,
.filter-btn:focus-visible,
.header-btn:focus-visible,
.article-title:focus-visible,
.article-card:focus-visible {
  outline: 2px solid rgba(12, 10, 9, 0.25);
  outline-offset: 2px;
}

.is-hidden {
  display: none;
}

@media (max-width: 640px) {
  .content-wrap {
    padding: 0 16px;
  }

  .header-inner {
    padding: 10px 0;
  }

  .header-filters {
    max-width: 60%;
    padding-bottom: 4px;
  }

  .article-meta {
    flex-wrap: nowrap;
    white-space: nowrap;
    overflow: hidden;
  }

  .source-name {
    max-width: 140px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }
}