/* Eco Animal Life — design system
   Palette derived from the site logo (coral + periwinkle), with a moss-green
   accent for the nature/conservation theme. Independent layout, not shared
   with any other site. */

:root {
  --color-coral: #e85d75;
  --color-coral-dark: #c23f58;
  --color-periwinkle: #5b7fd9;
  --color-periwinkle-dark: #3e5bb0;
  --color-moss: #3f6b52;
  --color-moss-dark: #2c4d3a;
  --color-sand: #faf6f0;
  --color-sand-deep: #f1e9dd;
  --color-ink: #23281f;
  --color-ink-soft: #4a4f44;
  --color-line: #ddd3c2;
  --color-white: #ffffff;
  --color-focus: #1b4332;
  --color-success-bg: #eaf3ec;
  --color-diff-bg: #fdeee0;

  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-body: "Source Sans 3", "Segoe UI", Arial, sans-serif;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-card: 0 10px 30px -18px rgba(35, 40, 31, 0.35);
  --max-width: 1180px;
}

:root {
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-sand);
  line-height: 1.6;
  font-size: 1.05rem;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.2;
  color: var(--color-ink);
  margin-top: 0;
}

h1 { font-size: clamp(2rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.4rem, 2.4vw, 1.9rem); margin-top: 2.2em; }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1em; }

a {
  color: var(--color-periwinkle-dark);
  text-decoration-thickness: 1.5px;
}

a:hover { color: var(--color-coral-dark); }

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

img { max-width: 100%; height: auto; display: block; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-ink);
  color: var(--color-white);
  padding: 0.75em 1.2em;
  z-index: 100;
  border-radius: 0 0 var(--radius-sm) 0;
}

.skip-link:focus {
  left: 0;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header */
.site-header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-line);
  position: sticky;
  top: 0;
  z-index: 40;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--color-ink);
}

.brand img { height: 36px; width: auto; }

.main-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1.4rem;
  margin: 0;
  padding: 0;
  font-size: 0.98rem;
}

.main-nav a {
  color: var(--color-ink-soft);
  text-decoration: none;
  font-weight: 600;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: var(--color-coral-dark);
}

.nav-toggle {
  display: none;
}

@media (max-width: 760px) {
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--color-sand-deep);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.8rem;
    font-weight: 700;
    cursor: pointer;
  }
  .main-nav {
    display: none;
    width: 100%;
    order: 3;
    padding-bottom: 0.75rem;
  }
  .main-nav.is-open { display: block; }
  .main-nav ul { flex-direction: column; gap: 0.6rem; }
  .site-header .wrap { flex-wrap: wrap; }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75em 1.4em;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 1rem;
}

.btn-primary {
  background: var(--color-coral);
  color: var(--color-white);
}
.btn-primary:hover { background: var(--color-coral-dark); color: var(--color-white); }

.btn-secondary {
  background: transparent;
  border-color: var(--color-ink);
  color: var(--color-ink);
}
.btn-secondary:hover { border-color: var(--color-coral-dark); color: var(--color-coral-dark); }

.btn-ghost {
  background: var(--color-sand-deep);
  color: var(--color-ink);
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--color-sand-deep), var(--color-sand));
  padding: 4rem 0 3rem;
  border-bottom: 1px solid var(--color-line);
}

.hero .eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  color: var(--color-moss-dark);
  font-size: 0.85rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.5rem;
}

/* Cards / grids */
.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-5 { grid-template-columns: repeat(5, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

@media (max-width: 960px) {
  .grid-5 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .grid-5, .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

.card {
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
  text-decoration: none;
  color: inherit;
  display: block;
}

.card h3 { margin-bottom: 0.4em; }
.card p { color: var(--color-ink-soft); margin-bottom: 0; }

.tag {
  display: inline-block;
  background: var(--color-sand-deep);
  color: var(--color-ink-soft);
  border-radius: 999px;
  padding: 0.25em 0.8em;
  font-size: 0.8rem;
  font-weight: 700;
  margin: 0 0.3em 0.3em 0;
}

section { padding: 3rem 0; }
section.alt { background: var(--color-sand-deep); }

/* Footer */
.site-footer {
  background: var(--color-ink);
  color: var(--color-sand);
  padding: 3rem 0 1.5rem;
}

.site-footer a { color: var(--color-sand); }
.site-footer a:hover { color: var(--color-coral); }

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(4, 1fr);
  gap: 2rem;
  margin-bottom: 2rem;
}

@media (max-width: 860px) {
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

.footer-grid h4 {
  color: var(--color-sand);
  font-family: var(--font-body);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.8em;
}

.footer-grid ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.5em;
  font-size: 0.95rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 1.2rem;
  font-size: 0.85rem;
  color: var(--color-sand-deep);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.6rem;
}

/* Tables (articles + comparator) */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  font-size: 0.97rem;
}

caption {
  text-align: left;
  font-weight: 700;
  margin-bottom: 0.5em;
}

th, td {
  border: 1px solid var(--color-line);
  padding: 0.65em 0.8em;
  text-align: left;
  vertical-align: top;
}

thead th {
  background: var(--color-sand-deep);
}

tbody th[scope="row"] {
  background: var(--color-sand-deep);
}

.table-scroll {
  overflow-x: auto;
}

/* Comparator */
.comparator-form fieldset {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 1rem 1.2rem;
  margin: 0 0 1.2rem;
}

.comparator-form legend {
  font-weight: 700;
  padding: 0 0.4em;
}

.check-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem 1rem;
}
@media (max-width: 700px) {
  .check-grid { grid-template-columns: repeat(2, 1fr); }
}

.check-grid label {
  display: flex;
  align-items: center;
  gap: 0.5em;
}

.comparator-results {
  margin-top: 2rem;
}

.diff-cell {
  background: var(--color-diff-bg);
  font-weight: 700;
}

.comparator-summary {
  background: var(--color-success-bg);
  border-radius: var(--radius-md);
  padding: 1.2rem 1.4rem;
  margin: 1.5rem 0;
}

.comparator-actions {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.empty-state {
  border: 2px dashed var(--color-line);
  border-radius: var(--radius-md);
  padding: 2rem;
  text-align: center;
  color: var(--color-ink-soft);
}

/* Explorer */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-end;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 1.2rem;
  margin-bottom: 2rem;
}

.filter-bar label {
  display: flex;
  flex-direction: column;
  gap: 0.3em;
  font-weight: 700;
  font-size: 0.9rem;
}

.filter-bar input,
.filter-bar select {
  padding: 0.55em 0.7em;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.95rem;
}

.results-count {
  font-weight: 700;
  margin-bottom: 1rem;
}

/* Article */
.article-header {
  background: var(--color-sand-deep);
  padding: 3rem 0 2rem;
}

.breadcrumbs {
  font-size: 0.88rem;
  color: var(--color-ink-soft);
}

.breadcrumbs ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4em;
  padding: 0;
  margin: 0 0 1em;
}

.breadcrumbs li:not(:last-child)::after {
  content: "›";
  margin-left: 0.4em;
}

.article-meta {
  color: var(--color-ink-soft);
  font-size: 0.9rem;
}

.article-body {
  max-width: 740px;
  margin: 2.5rem auto 0;
}

.callout {
  background: var(--color-success-bg);
  border-left: 4px solid var(--color-moss);
  border-radius: var(--radius-sm);
  padding: 1.1rem 1.3rem;
  margin: 1.6em 0;
}

.mistakes-list li,
.checklist li {
  margin-bottom: 0.6em;
}

.faq-item {
  border-bottom: 1px solid var(--color-line);
  padding: 1em 0;
}

.faq-item summary {
  font-weight: 700;
  cursor: pointer;
}

.sources-list {
  font-size: 0.92rem;
  color: var(--color-ink-soft);
}

.related-links {
  background: var(--color-sand-deep);
  border-radius: var(--radius-md);
  padding: 1.4rem;
  margin: 2.5rem auto 0;
  max-width: 740px;
}

/* Forms */
.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.35em;
  margin-bottom: 1.2em;
  font-weight: 700;
}

.form-field input,
.form-field textarea,
.form-field select {
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.7em 0.8em;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  font-weight: 400;
}

.form-note {
  font-size: 0.85rem;
  color: var(--color-ink-soft);
  font-weight: 400;
}

/* Topo background (home hero) */
.hero[data-topo] {
  position: relative;
  overflow: hidden;
}

.hero[data-topo] .wrap {
  position: relative;
  z-index: 1;
}

.topo-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  color: var(--color-moss);
  pointer-events: none;
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 18%, #000 82%, transparent);
  mask-image: linear-gradient(to bottom, transparent, #000 18%, #000 82%, transparent);
}

@media print {
  .topo-canvas { display: none; }
}

/* Photos */
.card-photo {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  background: var(--color-sand-deep);
}

.card-credit {
  display: block;
  font-size: 0.78rem;
  color: var(--color-ink-soft);
  margin-top: 0.9rem;
}

.hero-photo {
  margin: 0;
  padding: 2rem 0 0;
}

.hero-photo .wrap {
  max-width: 960px;
}

.hero-photo--wide .wrap {
  max-width: var(--max-width);
}

.hero-photo img {
  width: 100%;
  height: auto;
  aspect-ratio: 1200 / 627;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  background: var(--color-sand-deep);
}

.hero-photo figcaption {
  font-size: 0.85rem;
  color: var(--color-ink-soft);
  margin-top: 0.6rem;
}

/* Utility */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.text-center { text-align: center; }
.mt-0 { margin-top: 0; }

@media print {
  .site-header, .site-footer, .hero-actions, .comparator-actions, .filter-bar, .skip-link {
    display: none !important;
  }
  body { background: #fff; color: #000; }
  .comparator-results table { page-break-inside: avoid; }
}