:root {
  color-scheme: light;
  --bg: #f7f5f0;
  --surface: #ffffff;
  --surface-soft: #eef3ed;
  --text: #24322d;
  --muted: #61716a;
  --accent: #3f695b;
  --accent-dark: #294c41;
  --border: #d9e1dc;
  --shadow: 0 10px 30px rgba(35, 55, 48, 0.08);
  --radius: 1.25rem;
}
* { box-sizing: border-box; }
html { background: var(--bg); scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 0;
  color: var(--text);
  background: var(--bg);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  overflow-wrap: anywhere;
}
a { color: inherit; }
img { display: block; max-width: 100%; height: auto; }
.site-shell { width: min(100% - 2rem, 68rem); margin-inline: auto; }
.site-header { padding: 2.5rem 0 1.5rem; }
.eyebrow {
  margin: 0 0 .35rem;
  color: var(--accent);
  font-size: .8rem;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}
h1, h2 { line-height: 1.15; text-wrap: balance; }
h1 { margin: 0; font-size: clamp(2.15rem, 9vw, 4.5rem); letter-spacing: -.04em; }
.intro { max-width: 38rem; margin: .75rem 0 0; color: var(--muted); font-size: clamp(1.05rem, 3.8vw, 1.25rem); }
.animal-grid { display: grid; gap: 1rem; padding: .5rem 0 3rem; }
.animal-card {
  display: grid;
  grid-template-columns: 6.5rem 1fr;
  min-height: 7.5rem;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  text-decoration: none;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.animal-card:hover { transform: translateY(-2px); border-color: #adc0b7; box-shadow: 0 14px 34px rgba(35,55,48,.12); }
.animal-card:focus-visible, .back-link:focus-visible { outline: 3px solid #8bb9a8; outline-offset: 3px; }
.card-photo, .hero-photo {
  display: grid;
  place-items: center;
  color: #63736d;
  background:
    linear-gradient(135deg, rgba(255,255,255,.35), transparent),
    repeating-linear-gradient(135deg, #dfe8e2 0 12px, #e9efeb 12px 24px);
}
.card-photo { min-height: 100%; border-right: 1px solid var(--border); font-size: .74rem; text-align: center; }
.card-copy { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1.15rem; }
.card-copy strong { font-size: 1.2rem; }
.card-arrow { color: var(--accent); font-size: 1.5rem; }
.site-footer { padding: 1.5rem 0 2rem; border-top: 1px solid var(--border); color: var(--muted); font-size: .88rem; }
.detail-header { padding: 1.25rem 0 1rem; }
.back-link {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  padding: .6rem 1rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--accent-dark);
  font-weight: 750;
  text-decoration: none;
}
.detail-title { margin-top: 1.5rem; }
.hero-photo {
  min-height: clamp(14rem, 58vw, 27rem);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
}
.info-grid { display: grid; gap: 1rem; padding: 1rem 0 3rem; }
.info-card {
  min-height: 8rem;
  padding: 1.3rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}
.info-card h2 { margin: 0 0 .6rem; font-size: 1.22rem; }
.info-card p { margin: 0; color: var(--muted); }
@media (min-width: 42rem) {
  .site-shell { width: min(100% - 3rem, 68rem); }
  .site-header { padding-top: 4rem; }
  .animal-grid, .info-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .animal-card { grid-template-columns: 8rem 1fr; }
}
@media (min-width: 64rem) {
  .animal-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .animal-card { grid-template-columns: 1fr; grid-template-rows: 10rem auto; }
  .card-photo { border-right: 0; border-bottom: 1px solid var(--border); }
  .info-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .info-card:last-child { grid-column: 1 / -1; }
}
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}

/* Fiche aquarium récifal */
.card-photo-image { width: 100%; height: 100%; object-fit: cover; }
.guide-shell { max-width: 54rem; }
.reef-guide { padding-bottom: 3rem; }
.guide-hero, .guide-figure { margin: 0; overflow: hidden; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow); }
.guide-hero img, .guide-figure img { display: block; width: 100%; height: auto; }
.guide-hero img { aspect-ratio: 4 / 3; object-fit: cover; }
.guide-figure img { max-height: 42rem; object-fit: contain; background: #edf1ee; }
.guide-figure figcaption { padding: .75rem 1rem; color: var(--muted); font-size: .92rem; line-height: 1.4; }
.guide-section { padding-top: 3rem; }
.section-heading { display: flex; align-items: center; gap: .85rem; margin-bottom: 1.25rem; }
.section-heading .eyebrow { margin-bottom: .2rem; }
.section-heading h2 { margin: 0; font-size: clamp(1.7rem, 7vw, 2.4rem); }
.section-icon { display: grid; flex: 0 0 3rem; width: 3rem; height: 3rem; place-items: center; border-radius: 1rem; background: var(--surface-soft); font-size: 1.45rem; }
.task-card, .step-card, .all-good-card { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow); }
.task-card { display: grid; gap: 1rem; margin-bottom: 1rem; padding: 1rem; }
.task-copy { padding: .25rem; }
.task-copy h3, .step-body h3 { margin: 0 0 .75rem; font-size: 1.35rem; line-height: 1.25; }
.task-copy p, .step-body > p { margin: .55rem 0; }
.key-line { padding: .7rem .85rem; border-radius: .75rem; background: var(--surface-soft); }
.aside-note { color: var(--muted); font-style: italic; }
.schedule-callout { display: grid; gap: .1rem; margin: 0 0 1.25rem; padding: 1rem 1.15rem; border-radius: 1rem; background: var(--accent-dark); color: white; text-align: center; }
.schedule-callout strong { font-size: 1.25rem; }
.schedule-callout span { font-size: 1.05rem; }
.steps-list { display: grid; gap: 1.25rem; margin: 0; padding: 0; list-style: none; counter-reset: steps; }
.step-card { position: relative; padding: 1.1rem; }
.step-number { display: grid; width: 2.75rem; height: 2.75rem; margin-bottom: .9rem; place-items: center; border-radius: 50%; background: var(--accent); color: white; font-size: 1.2rem; font-weight: 800; }
.step-body { min-width: 0; }
.step-body > .guide-figure, .dose-grid, .distribution-grid { margin-top: 1rem; }
.dose-grid, .distribution-grid { display: grid; gap: 1rem; }
.distribution-grid > div { min-width: 0; }
.distribution-grid p { margin: .7rem .2rem 0; }
.warning-card { margin-top: 1.1rem; padding: 1rem; border-left: .35rem solid #c4762b; border-radius: .75rem; background: #fff4e7; color: #4c321d; }
.warning-card h4 { margin: 0 0 .55rem; font-size: 1.12rem; }
.warning-card p { margin: .4rem 0; }
.important-card { margin-top: 3rem; padding: 1.25rem; border: 2px solid #b65c46; border-radius: var(--radius); background: #fff1ed; color: #472721; box-shadow: var(--shadow); }
.important-card h2 { margin: 0 0 1rem; font-size: clamp(1.65rem, 7vw, 2.2rem); }
.important-card p { margin: .7rem 0; }
.important-action { padding: 1rem; border-radius: .8rem; background: #8b3f31; color: white; font-size: 1.15rem; font-weight: 850; letter-spacing: .02em; text-transform: uppercase; }
.compact-figure { max-width: 28rem; margin-top: 1.1rem; }
.all-good-card { margin-top: 1rem; padding: 1.25rem; background: var(--surface-soft); }
.all-good-card h2 { margin: 0 0 .8rem; font-size: 1.55rem; }
.all-good-card p { margin: .55rem 0; }
@media (min-width: 42rem) {
  .task-card { grid-template-columns: repeat(2, minmax(0, 1fr)); padding: 1.25rem; }
  .task-copy { grid-column: 1 / -1; }
  .task-card > .guide-figure:only-of-type { grid-column: 1 / -1; max-width: 30rem; }
  .dose-grid, .distribution-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .step-card { display: grid; grid-template-columns: 3rem minmax(0, 1fr); gap: 1rem; padding: 1.4rem; }
  .step-number { margin: 0; }
}