/* =========================================================================
   Conservation Australia — field-guide identity
   Palette from the org logo: eucalypt green + wattle gold on sage paper.
   Display: Fraunces (naturalist serif, used with restraint). Body: Instrument Sans.
   ========================================================================= */

:root {
  --eucalypt:      #1f4d2e;   /* primary brand green (from logo lettering)   */
  --eucalypt-deep: #14311e;   /* dark bands / footer                         */
  --eucalypt-soft: #2f6a41;   /* hover / lighter green                       */
  --wattle:        #e0a200;   /* gold accent (from logo map outline)         */
  --wattle-bright: #f4bf2c;   /* gold on dark                                */
  --bark:          #4a3b2a;   /* earthy secondary ink                        */
  --paper:         #f1f3ec;   /* sage-tinted off-white background            */
  --paper-2:       #e7ebdf;   /* slightly deeper panel                       */
  --ink:           #21281e;   /* body text                                   */
  --ink-soft:      #4c5346;   /* muted text                                  */
  --paper-onDark:  #eef2e6;   /* text on dark bands                          */
  --line:          #cdd4c2;   /* hairline rules                              */

  --maxw: 1160px;
  --gutter: clamp(1.25rem, 4vw, 3.5rem);
  --radius: 14px;

  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-body: "Instrument Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.075rem);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a { color: var(--eucalypt); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--eucalypt-soft); }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.015em;
  margin: 0 0 0.5em;
}

.skip {
  position: absolute; left: -999px; top: 0;
  background: var(--eucalypt); color: #fff; padding: 0.7rem 1rem; z-index: 100;
  border-radius: 0 0 8px 0;
}
.skip:focus { left: 0; color: #fff; }

:focus-visible {
  outline: 3px solid var(--wattle);
  outline-offset: 3px;
  border-radius: 3px;
}

/* ---------- Shared eyebrow / signature "specimen label" ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 0.55rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bark);
  margin: 0 0 1.1rem;
}
.eyebrow--onDark { color: var(--wattle-bright); }

.leaf {
  width: 0.85rem; height: 0.85rem; flex: none;
  background: var(--wattle);
  /* organic leaf shape */
  border-radius: 0 100% 0 100%;
  transform: rotate(-8deg);
}
.leaf--gold { background: var(--wattle-bright); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  padding: 0.85rem 1.5rem;
  background: var(--wattle);
  color: #3a2c00;
  border: 2px solid var(--wattle);
  border-radius: 999px;
  text-decoration: none;
  transition: transform 0.15s ease, background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn:hover { background: var(--wattle-bright); border-color: var(--wattle-bright); color: #3a2c00; transform: translateY(-2px); }
.btn--sm { padding: 0.55rem 1.1rem; font-size: 0.88rem; }
.btn--lg { padding: 1rem 1.9rem; font-size: 1.05rem; }
.btn--ghost {
  background: transparent; color: var(--paper-onDark);
  border-color: rgba(238,242,230,0.4);
}
.btn--ghost:hover { background: rgba(238,242,230,0.08); color: #fff; border-color: rgba(238,242,230,0.7); transform: translateY(-2px); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem var(--gutter);
  background: rgba(241,243,236,0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: 0.7rem; text-decoration: none; color: var(--eucalypt); }
.brand__mark { width: 48px; height: auto; border-radius: 6px; }
.brand__name {
  font-family: var(--font-display);
  font-weight: 700; font-size: 1.15rem; line-height: 1; letter-spacing: -0.02em;
  color: var(--eucalypt); display: flex; flex-direction: column;
}
.brand__name span { color: var(--wattle); font-size: 0.72em; letter-spacing: 0.02em; }

.site-nav { display: flex; align-items: center; gap: clamp(0.75rem, 2vw, 1.75rem); }
.site-nav a { font-weight: 500; text-decoration: none; color: var(--ink); font-size: 0.95rem; }
.site-nav a:hover { color: var(--eucalypt); }
.site-nav .btn { color: #3a2c00; }
.site-nav a:not(.btn) { display: none; }
@media (min-width: 720px) { .site-nav a:not(.btn) { display: inline; } }

/* ---------- Layout band helpers ---------- */
.band { padding: clamp(3.5rem, 8vw, 6.5rem) var(--gutter); }
.band--paper { background: var(--paper); }
.band--deep { background: var(--eucalypt-deep); color: var(--paper-onDark); }
.band--deep h2, .band--deep h3 { color: #fff; }

/* ---------- Hero ---------- */
.hero {
  display: grid; gap: clamp(2rem, 5vw, 4rem);
  grid-template-columns: 1fr;
  align-items: center;
  max-width: var(--maxw); margin: 0 auto;
  padding: clamp(3rem, 7vw, 6rem) var(--gutter) clamp(3.5rem, 7vw, 5.5rem);
}
@media (min-width: 900px) { .hero { grid-template-columns: 1.15fr 0.85fr; } }

.hero__title {
  font-size: clamp(2.6rem, 6.5vw, 4.9rem);
  font-weight: 600;
  margin-bottom: 0.4em;
  max-width: 14ch;
}
.hero__lead { font-size: clamp(1.08rem, 1rem + 0.5vw, 1.3rem); color: var(--ink-soft); max-width: 52ch; margin: 0 0 2rem; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.85rem; align-items: center; }
.hero__actions .btn--ghost { color: var(--eucalypt); border-color: var(--line); }
.hero__actions .btn--ghost:hover { background: var(--paper-2); color: var(--eucalypt); border-color: var(--eucalypt-soft); }

.hero__figure { margin: 0; position: relative; }
.hero__figure img {
  width: 100%; aspect-ratio: 1 / 1; object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  box-shadow: 0 30px 60px -30px rgba(20,49,30,0.5);
}
.hero__figure figcaption {
  font-size: 0.8rem; color: var(--ink-soft); margin-top: 0.7rem;
  padding-left: 1rem; border-left: 3px solid var(--wattle);
}

/* Warm gradient wash behind hero to feel like open sky over bush */
.hero { background:
  radial-gradient(120% 90% at 85% 0%, rgba(224,162,0,0.10), transparent 55%),
  radial-gradient(90% 80% at 0% 100%, rgba(31,77,46,0.08), transparent 60%);
}

/* ---------- Split sections ---------- */
.split {
  display: grid; gap: clamp(1.75rem, 4vw, 3.5rem);
  grid-template-columns: 1fr; align-items: center;
  max-width: var(--maxw); margin-inline: auto;
}
@media (min-width: 820px) {
  .split { grid-template-columns: 0.9fr 1.1fr; }
  .split--reverse .split__media { order: 2; }
}
.split__media img {
  width: 100%; aspect-ratio: 4 / 3; object-fit: cover;
  border-radius: var(--radius); border: 1px solid var(--line);
  box-shadow: 0 24px 48px -28px rgba(20,49,30,0.45);
}
.split__body h2 { font-size: clamp(1.8rem, 1.3rem + 2vw, 2.9rem); color: var(--eucalypt); }
.split__body p { color: var(--ink-soft); max-width: 54ch; }
.split__body p strong { color: var(--ink); }

/* ---------- Pillars ---------- */
.pillars { position: relative; }
.pillars__head { max-width: var(--maxw); margin: 0 auto clamp(2rem, 4vw, 3rem); }
.pillars__head h2 { font-size: clamp(2rem, 1.4rem + 2.6vw, 3.25rem); max-width: 18ch; }
.pillars__lead { color: rgba(238,242,230,0.82); max-width: 62ch; margin: 1.1rem 0 0; font-size: 1.05rem; }

.cards {
  max-width: var(--maxw); margin: 0 auto;
  display: grid; gap: clamp(1.25rem, 2.5vw, 2rem);
  grid-template-columns: 1fr;
}
@media (min-width: 720px) { .cards { grid-template-columns: repeat(3, 1fr); } }

.card {
  background: var(--paper);
  color: var(--ink);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.06);
  display: flex; flex-direction: column;
  box-shadow: 0 26px 50px -34px rgba(0,0,0,0.6);
}
.card__media { aspect-ratio: 4 / 3; overflow: hidden; }
.card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.card:hover .card__media img { transform: scale(1.05); }
.card__body { padding: 1.5rem 1.5rem 1.75rem; }
.card__label {
  font-size: 0.7rem; letter-spacing: 0.16em; text-transform: uppercase;
  font-weight: 600; color: var(--wattle); margin: 0 0 0.35rem;
}
.card__body h3 { font-size: 1.5rem; color: var(--eucalypt); margin-bottom: 0.4rem; }
.card__body p { color: var(--ink-soft); margin: 0; font-size: 0.98rem; }

/* Text-only field-note cards (no photo) */
.card--note { border-top: 3px solid var(--wattle); }
.card--note .card__body { padding: 1.6rem 1.5rem 1.85rem; }

/* ---------- Events ---------- */
.events__inner { max-width: 46rem; margin: 0 auto; text-align: center; }
.events__inner .eyebrow { justify-content: center; }
.events__inner h2 { font-size: clamp(1.8rem, 1.3rem + 2vw, 2.9rem); color: var(--eucalypt); }
.events__inner p { color: var(--ink-soft); margin: 0 auto; max-width: 54ch; }

/* ---------- How can I help ---------- */
.help__grid {
  max-width: var(--maxw); margin: 0 auto;
  display: grid; gap: clamp(2rem, 5vw, 4rem);
  grid-template-columns: 1fr;
}
@media (min-width: 900px) { .help__grid { grid-template-columns: 0.95fr 1.05fr; align-items: start; } }
.help__intro h2 { font-size: clamp(1.9rem, 1.3rem + 2.4vw, 3rem); color: var(--eucalypt); }
.help__sub { color: var(--ink-soft); max-width: 48ch; }
.help__photo { margin: 1.75rem 0 0; }
.help__photo img {
  width: 100%; aspect-ratio: 3 / 2; object-fit: cover;
  border-radius: var(--radius); border: 1px solid var(--line);
}

.who { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.who li {
  padding: 1.3rem 0 1.3rem 2.4rem;
  border-top: 1px solid var(--line);
  position: relative;
}
.who li:last-child { border-bottom: 1px solid var(--line); }
.who li::before {
  content: ""; position: absolute; left: 0; top: 1.55rem;
  width: 1.1rem; height: 1.1rem;
  background: var(--wattle);
  border-radius: 0 100% 0 100%;
  transform: rotate(-8deg);
}
.who h3 { font-size: 1.2rem; color: var(--eucalypt); margin: 0 0 0.15rem; }
.who p { margin: 0; color: var(--ink-soft); font-size: 0.98rem; }

/* ---------- CTA ---------- */
.cta { padding: clamp(4rem, 9vw, 7rem) var(--gutter); text-align: center;
  background:
    radial-gradient(80% 120% at 50% 0%, rgba(224,162,0,0.16), transparent 60%),
    var(--eucalypt-deep);
  color: var(--paper-onDark);
}
.cta__inner { max-width: 40rem; margin: 0 auto; }
.cta__mark { width: 96px; height: auto; margin: 0 auto 1.25rem; border-radius: 10px; }
.cta h2 { color: #fff; font-size: clamp(2rem, 1.4rem + 2.6vw, 3.2rem); }
.cta p { color: rgba(238,242,230,0.85); margin: 0 auto 2rem; max-width: 44ch; }

/* ---------- Footer ---------- */
.site-footer {
  background: #10261a; color: rgba(238,242,230,0.8);
  padding: clamp(2.5rem, 5vw, 3.5rem) var(--gutter);
  text-align: center; display: grid; gap: 0.4rem; justify-items: center;
  font-size: 0.92rem;
}
.brand--footer .brand__name { color: #fff; }
.brand--footer { margin-bottom: 0.6rem; }
.site-footer a { color: var(--wattle-bright); }
.site-footer p { margin: 0; max-width: 46ch; }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}