:root {
  --bg: #ffffff;
  --ink: #000000;
  --accent: #69af00;
  --muted: #f4f6ef;
  --soft-border: #d8e6bf;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  color: var(--ink);
  background: #ffffff;
  position: relative;
  overflow-x: hidden;
}

.topbar {
  padding: 1.2rem 1.2rem 0.3rem;
  max-width: 1280px;
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: "IBM Plex Serif", serif;
  font-size: clamp(1.2rem, 2.3vw, 1.75rem);
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
}

.brand-dot {
  width: 12px;
  height: 12px;
  border-radius: 2px;
  background: var(--accent);
  box-shadow: none;
}

.subtitle {
  margin: 0.4rem 0 0;
  color: #303030;
  font-size: 0.95rem;
}

.nav-grid {
  max-width: 1280px;
  margin: 1rem auto;
  padding: 0 1.2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.65rem;
}

.nav-chip {
  text-decoration: none;
  color: var(--ink);
  border: 1px solid var(--soft-border);
  border-radius: 10px;
  background: #ffffff;
  padding: 0.65rem 0.85rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.92rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.nav-chip strong {
  color: #1b1b1b;
}

.nav-chip:hover {
  border-color: var(--accent);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.07);
}

.nav-chip.active {
  border-color: var(--accent);
  background: #eef8dc;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0.5rem 1.2rem 2rem;
}

.hero {
  border: 1px solid var(--soft-border);
  border-radius: 12px;
  padding: 1.15rem 1.2rem;
  background: linear-gradient(180deg, #ffffff 0%, #f7faef 100%);
}

.hero h1 {
  font-family: "IBM Plex Serif", serif;
  font-size: clamp(1.4rem, 3.6vw, 2.1rem);
  line-height: 1.15;
  margin: 0;
}

.hero p {
  margin: 0.6rem 0 0;
  max-width: 65ch;
}

.cards-grid {
  margin-top: 1.1rem;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.card {
  border: 1px solid var(--soft-border);
  border-radius: 10px;
  background: #ffffff;
  padding: 1rem;
  box-shadow: 0 5px 12px rgba(0, 0, 0, 0.04);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.card h2 {
  margin: 0.5rem 0;
  font-family: "IBM Plex Serif", serif;
  font-size: 1.08rem;
}

.card h2 a {
  color: var(--ink);
  text-decoration: none;
}

.card h2 a:hover {
  text-decoration: underline;
  text-decoration-color: var(--accent);
}

.card p {
  color: #252525;
  line-height: 1.5;
}

.card p:last-of-type {
  margin-bottom: 0;
}

.card-topline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
}

.pill {
  background: #f7faef;
  border: 1px solid var(--soft-border);
  padding: 0.22rem 0.5rem;
  border-radius: 6px;
}

.meta {
  color: #3b3b3b;
  text-align: right;
}

.reason {
  margin-top: 0.6rem;
  margin-bottom: 0.8rem;
  padding: 0.55rem 0.65rem;
  border-left: 3px solid var(--accent);
  background: #f8fbf2;
  font-size: 0.92rem;
}

.authors p {
  margin-top: 0.2rem;
  white-space: pre-line;
}

.actions-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.read-more {
  margin-top: 0.7rem;
  display: inline-block;
  text-decoration: none;
  color: #000000;
  background: var(--accent);
  border: 1px solid var(--accent);
  padding: 0.42rem 0.72rem;
  border-radius: 8px;
  font-size: 0.88rem;
  transition: background 0.2s ease;
  margin-top: auto;
  align-self: flex-start;
}

.read-more:hover {
  background: #5f9e00;
}

.read-more.alt {
  background: #ffffff;
  border-color: var(--accent);
  color: var(--ink);
}

.pagination-wrap {
  margin: 1.4rem 0 1rem;
}

.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.65rem;
}

.btn {
  text-decoration: none;
  border: 1px solid var(--accent);
  color: var(--ink);
  padding: 0.45rem 0.7rem;
  border-radius: 8px;
  font-size: 0.9rem;
  background: #eef8dc;
}

.btn.disabled {
  opacity: 0.45;
  pointer-events: none;
}

.page-info {
  font-size: 0.94rem;
}

.empty-state {
  border: 1px dashed var(--soft-border);
  border-radius: 8px;
  padding: 1.2rem;
  background: #fbfdf7;
}

@media (max-width: 1180px) {
  .cards-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .cards-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .topbar,
  .nav-grid,
  .container {
    padding-left: 0.85rem;
    padding-right: 0.85rem;
  }

  .cards-grid {
    grid-template-columns: 1fr;
  }

  .pagination {
    flex-wrap: wrap;
  }
}