:root {
  --bg: #f6f7f9;
  --paper: #fff;
  --ink: #1f2328;
  --muted: #6b7280;
  --brand: #1b8a6b;
  --brand-ink: #0a5743;
  --chip: #e7efe9;
  --chip-border: #cfe0d7;
  --stroke: #e5e7eb;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.06), 0 8px 24px rgba(0, 0, 0, 0.06);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell,
    "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji",
    "Segoe UI Symbol", "Noto Color Emoji", sans-serif;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}
html,
body {
  height: 100%;
}
body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.5;
}

.container {
  max-width: 1100px;
  margin-inline: auto;
  padding-inline: 1rem;
}

.site-header {
  background: linear-gradient(0deg, #eaf5ef, #d7efe5);
  border-bottom: 1px solid var(--stroke);
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--brand-ink);
}
.logo-sq {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 9px;
  background: var(--brand);
  color: white;
  font-weight: 800;
}

.nav-actions {
  margin-left: auto;
  display: flex;
  gap: 0.5rem;
}

.btn {
  display: inline-block;
  padding: 0.45rem 0.8rem;
  border-radius: 0.6rem;
  background: var(--brand);
  color: #fff;
  text-decoration: none;
  border: 1px solid transparent;
}
.btn.ghost {
  background: transparent;
  color: var(--brand-ink);
  border-color: var(--chip-border);
}

.notice {
  border-top: 1px solid var(--stroke);
  background: #fff;
  color: #9a3412;
  padding: 0.6rem 1rem;
  text-align: center;
  font-weight: 500;
}

.page-header {
  padding: 1rem 0 0.5rem;
}
.page-header h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.4rem, 1vw + 1rem, 2rem);
}

.toolbar {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.75rem;
  align-items: center;
}
.categories {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.chip {
  appearance: none;
  border: 1px solid var(--chip-border);
  background: var(--chip);
  color: #0f3c2c;
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  cursor: pointer;
  font: inherit;
}
.chip.active {
  background: var(--brand);
  color: #fff;
  border-color: transparent;
}

.search {
  display: flex;
}
.search input {
  width: min(320px, 60vw);
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--stroke);
  border-radius: 0.6rem;
  background: #fff;
}

.grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(12, 1fr);
  margin: 1rem 0 2rem;
}
@media (max-width: 920px) {
  .grid {
    grid-template-columns: repeat(8, 1fr);
  }
}
@media (max-width: 600px) {
  .grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Carte */
.card {
  grid-column: span 4;
  display: flex;
  flex-direction: column;
  background: var(--paper);
  border: 1px solid var(--stroke);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: translate 0.2s ease, box-shadow 0.2s ease;
}
.card:hover {
  translate: 0 -2px;
}

.cover {
  position: relative;
  display: block;
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, #cbe8db, #a1cca5);
}
.cover.alt {
  background: linear-gradient(135deg, #d4d4ff, #a1b6ff);
}
.cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.badge {
  position: absolute;
  left: 0.75rem;
  top: 0.75rem;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  font-size: 0.8rem;
  padding: 0.3rem 0.5rem;
  border-radius: 0.4rem;
}

.card-body {
  padding: 0.9rem 0.9rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.title {
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.35;
}
.title a {
  color: inherit;
  text-decoration: none;
}
.title a:hover {
  text-decoration: underline;
}
.author {
  margin: 0;
  color: var(--muted);
}
.meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.25rem;
  color: var(--muted);
  font-size: 0.95rem;
}
.dot {
  opacity: 0.5;
}

.site-footer {
  border-top: 1px solid var(--stroke);
  background: #fff;
}
.foot {
  padding: 1.2rem 0;
  color: var(--muted);
}