/* Tropicavian: Rhinoceros Hornbill
   One long page with four sections (Overview, Species, Behavior, Conservation) inside an inset sheet,
   over a rainforest photo that stays fixed while the sheet scrolls.

   Desktop (1100px and up): everything is sized on the 1657px Figma frame and scales with the window
   (1 unit = --u). Below 1100px the sections stack into a single column. */

:root {
  --orange: #f26f28;
  --cream: #f4f0e7;
  --forest: #154101;
  --moss: #1f5206;
  --leaf: #4d8533;
  --logo-green: #679b2c;
  --logo-dot: #2f78d4;
  --sun: #ffba3a;
  --ink: #1a1200;
  --muted: #86b957;

  --font-display: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body: "Source Serif 4", "Iowan Old Style", Georgia, serif;

  --gutter-left: max(16px, env(safe-area-inset-left, 0px));
  --gutter-right: max(16px, env(safe-area-inset-right, 0px));
}

*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  background: var(--forest);
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  color: var(--cream);
  font-family: var(--font-display);
}

.defs { position: absolute; width: 0; height: 0; }

/* Rainforest backdrop, fixed to the window */
.forest {
  position: fixed;
  inset: 0;
  z-index: -1;
  background: #0f2d05 url("images/rainforest.jpg") center / cover no-repeat;
}
.forest::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(6, 24, 2, 0.25);
}

.page {
  container-type: inline-size;
  overflow-x: clip;
}

/* The inset sheet. 1 design unit = 1px on the 1657px Figma frame, scaled to the sheet width. */
.sheet {
  --margin: clamp(10px, 2.5cqw, 40px);
  --u: calc(min(100cqw - 2 * var(--margin), 1657px) / 1657);
  width: min(100cqw - 2 * var(--margin), 1657px);
  margin: var(--margin) auto;
  scroll-margin-top: 0;
}

.section { scroll-margin-top: 0; }

.deco { display: none; }

/* ---------- Bars and footer ---------- */

.bar { height: 14px; background: var(--orange); }

.foot__mid {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: 12px var(--gutter-right) 12px var(--gutter-left);
  background: var(--leaf);
}
.foot__nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 24px;
}
.foot__nav a {
  padding-block: 4px;
  color: var(--ink);
  font-size: 19px;
  font-weight: 800;
  text-decoration: none;
}
.foot__nav a:hover,
.foot__nav a:focus-visible {
  text-decoration: underline;
  text-decoration-thickness: 3px;
  text-underline-offset: 5px;
}

.foot__base {
  display: grid;
  place-items: center;
  min-height: 56px;
  background: var(--forest);
}
.foot__base p {
  margin: 0;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.04em;
  opacity: 0.8;
}

/* ---------- Header ---------- */

.masthead { background: var(--cream); }

.inner { max-width: 720px; margin-inline: auto; }

.masthead .inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  padding: 22px var(--gutter-right) 22px var(--gutter-left);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--forest);
  text-decoration: none;
}

.logo__mark { width: 36px; height: auto; flex: none; }
.logo__shape { fill: var(--logo-green); }
.logo__ring { fill: #fff; }
.logo__dot { fill: var(--logo-dot); }

.logo__word {
  font-weight: 900;
  font-size: 22px;
  line-height: 1.1;
  letter-spacing: -0.01em;
}
.logo__word span { display: block; }

.menu {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 22px;
  font-size: 15px;
  font-weight: 800;
}
.menu a {
  padding-block: 8px;
  color: var(--forest);
  text-decoration: none;
}
.menu a:hover,
.menu a:focus-visible {
  text-decoration: underline;
  text-decoration-color: var(--orange);
  text-decoration-thickness: 3px;
  text-underline-offset: 6px;
}

/* ---------- Shared text styles ---------- */

.tagline {
  width: fit-content;
  margin: 0;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--cream);
  font-size: 18px;
  font-weight: 300;
  font-style: italic;
  line-height: 1.2;
}

.title {
  margin: 18px 0 0;
  font-size: clamp(40px, 13.5vw, 96px);
  font-weight: 900;
  font-style: italic;
  line-height: 0.98;
  letter-spacing: -0.06em;
  text-transform: uppercase;
  text-shadow: 0 0.04em 0.06em rgba(0, 0, 0, 0.35);
}
.title span { display: block; }

.lede {
  margin: 20px 0 0;
  max-width: 34em;
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
}

/* Photo blob, shared by the hero and the new sections */
.blob__shadow {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 12px 16px rgba(0, 0, 0, 0.5));
}

.blob__photo {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  clip-path: url(#blob);
}
.blob__photo--flip { clip-path: url(#blob-flip); }

.blob__photo img {
  position: absolute;
  top: -0.5%;
  left: -5%;
  width: 135%;
  max-width: none;
  height: auto;
  display: block;
}

/* placeholder crops fill the whole blob */
.blob__photo--fill img {
  inset: 0;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: var(--pos, 50% 50%);
}

/* Yellow sticker */
.fact {
  position: absolute;
  right: -2%;
  bottom: -6%;
  z-index: 2;
  width: 64%;
  padding: 14px 16px;
  color: var(--ink);
  text-align: center;
  transform: rotate(-3.5deg);
}
.fact::before,
.fact::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
}
.fact::before { background: var(--orange); transform: translate(-3%, 12%); }
.fact::after { background: var(--sun); }
.fact p {
  margin: 0;
  font-size: clamp(13px, 3.6vw, 18px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.01em;
}
.fact strong {
  display: block;
  font-size: 1.5em;
  font-style: italic;
  text-transform: uppercase;
  letter-spacing: -0.03em;
}

a:focus-visible { outline: 3px solid var(--orange); outline-offset: 4px; }

/* ---------- Overview (stacked layout) ---------- */

.hero { background: var(--forest); position: relative; }

.hero .inner {
  display: flex;
  flex-direction: column;
  padding: 36px var(--gutter-right) 56px var(--gutter-left);
}

.hero .tagline { order: 1; }
.hero .title { order: 2; }

.species {
  order: 3;
  margin: 12px 0 0;
  font-size: 12px;
  font-weight: 500;
  font-style: italic;
  letter-spacing: 0.45em;
  text-transform: uppercase;
}

.blob {
  order: 4;
  position: relative;
  isolation: isolate;
  margin: 36px 0 72px;
  aspect-ratio: 1005 / 980;
}

/* small orange dome behind the photo */
.blob::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -7%;
  right: 3%;
  width: 30%;
  aspect-ratio: 2 / 1.15;
  background: var(--orange);
  border-radius: 999px 999px 0 0;
}

.intro {
  padding-top: 3%;
  order: 5;
  max-width: 34em;
  margin: 0;
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
}

/* ---------- New sections (stacked layout) ---------- */

.section { background: var(--forest); }

.section .inner {
  display: flex;
  flex-direction: column;
  padding: 40px var(--gutter-right) 56px var(--gutter-left);
}

.figure {
  position: relative;
  isolation: isolate;
  margin: 40px 0 72px;
  aspect-ratio: 1005 / 980;
}

.shape { position: absolute; height: auto; pointer-events: none; 
padding-top: 7%;}

.shape--dome { width: 30%; z-index: -1; fill: var(--orange); }
.shape--zig,
.shape--cap {
  z-index: 3;
  fill: none;
  stroke: var(--orange);
  stroke-width: 56;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.shape--zig { width: 40%; padding-top: 50%;}
.shape--cap { width: 20%; }

.at-tr { top: -9%; right: 4%; }
.at-tl { top: -9%; left: 4%; }
.shape--zig.at-l { top: 8%; left: -7%; }
.shape--cap.at-l { top: 6%; left: -5%; }
.shape--cap.at-r { top: 2%; right: -2%; }

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

.stat {
  position: relative;
  isolation: isolate;
  padding: 12px 8px;
  color: var(--ink);
  text-align: center;
  transform: rotate(-2deg);
}
.stat:nth-child(2) { transform: rotate(1.5deg); }
.stat:nth-child(3) { transform: rotate(-1deg); }
.stat::before,
.stat::after { content: ""; position: absolute; inset: 0; z-index: -1; }
.stat::before { background: var(--orange); transform: translate(-6%, 10%); }
.stat::after { background: var(--sun); }
.stat b {
  display: block;
  font-size: clamp(16px, 5vw, 24px);
  font-weight: 900;
  letter-spacing: -0.03em;
}
.stat span { display: block; font-size: 13px; font-weight: 700; }

.steps {
  display: grid;
  gap: 18px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}
.steps li {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 14px;
  align-items: start;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.45;
}
.steps li::before {
  counter-increment: step;
  content: counter(step);
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--orange);
  color: var(--forest);
  font-size: 20px;
  font-weight: 900;
}

.chips {
  display: grid;
  gap: 14px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}
.chip {
  padding: 16px 18px 20px;
  border-top: 4px solid var(--orange);
  background: var(--moss);
}
.chip h3 {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 900;
  font-style: italic;
  letter-spacing: -0.01em;
  text-transform: uppercase;
}
.chip p { margin: 0; font-size: 15px; font-weight: 500; line-height: 1.4; }

/* ---------- Desktop: scaled Figma frame ---------- */

@media (min-width: 1100px) {
  .bar--top,
  .bar--bottom,
  .section .bar { height: calc(40 * var(--u)); }

  .foot__mid { min-height: calc(138 * var(--u)); padding-block: 0; }
  .foot__nav { gap: calc(12 * var(--u)) calc(60 * var(--u)); }
  .foot__nav a { font-size: calc(26 * var(--u)); }
  .foot__base { min-height: calc(141 * var(--u)); }
  .foot__base p { font-size: calc(22 * var(--u)); }

  .inner {
    position: relative;
    width: calc(1657 * var(--u));
    max-width: none;
    margin-inline: auto;
    padding: 0;
  }

  /* header */
  .masthead { height: calc(218 * var(--u)); }
  .masthead .inner { display: block; height: 100%; padding: 0; }

  .logo {
    position: absolute;
    left: calc(55 * var(--u));
    top: calc(47 * var(--u));
    align-items: flex-start;
    gap: calc(8 * var(--u));
  }
  .logo__mark {
    width: calc(56 * var(--u));
    margin-top: calc(9 * var(--u));
  }
  .logo__word {
    font-size: calc(38 * var(--u));
    line-height: calc(43 * var(--u));
  }

  .menu {
    position: absolute;
    left: calc(290 * var(--u));
    top: calc(114 * var(--u));
    transform: translateY(-50%);
    flex-wrap: nowrap;
    gap: calc(56 * var(--u));
    font-size: calc(26 * var(--u));
  }
  .menu a { padding-block: calc(8 * var(--u)); }

  /* overview */
  .hero { height: calc(1040 * var(--u)); }
  .hero .inner { display: block; height: 100%; padding: 0; }

  .deco {
    display: block;
    position: absolute;
    left: 0;
    top: calc(-121 * var(--u));
    width: 100%;
    height: calc(1161 * var(--u));
    pointer-events: none;
  }
  .deco--back { z-index: 0; fill: var(--orange); }
  .deco--front {
    z-index: 3;
    fill: none;
    stroke: var(--orange);
    stroke-width: 56;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

  .blob {
    position: absolute;
    z-index: 1;
    left: calc(625 * var(--u));
    top: calc(-43 * var(--u));
    width: calc(1005 * var(--u));
    height: calc(980 * var(--u));
    margin: 0;
    aspect-ratio: auto;
  }
  .blob::before { display: none; }
  .blob__shadow { filter: drop-shadow(0 calc(16 * var(--u)) calc(22 * var(--u)) rgba(0, 0, 0, 0.5)); }

  .hero .fact {
    left: calc(550 * var(--u));
    top: calc(663 * var(--u));
    right: auto;
    bottom: auto;
    width: calc(445 * var(--u));
    height: calc(185 * var(--u));
    padding: calc(20 * var(--u)) calc(34 * var(--u));
    display: grid;
    place-items: center;
  }
  .fact::before { transform: translate(calc(-25 * var(--u)), calc(30 * var(--u))); }
  .fact p { font-size: calc(30 * var(--u)); }

  .hero .tagline {
    position: absolute;
    z-index: 4;
    left: calc(80 * var(--u));
    top: calc(228 * var(--u));
    padding-bottom: calc(10 * var(--u));
    border-bottom-width: calc(2 * var(--u));
    font-size: calc(33 * var(--u));
  }

  .hero .title {
    position: absolute;
    z-index: 4;
    left: calc(66 * var(--u));
    top: calc(315 * var(--u));
    margin: 0;
    font-size: calc(137 * var(--u));
    text-shadow: 0 calc(6 * var(--u)) calc(8 * var(--u)) rgba(0, 0, 0, 0.35);
  }

  .species {
    position: absolute;
    z-index: 4;
    left: calc(697 * var(--u) + 0.5em);
    top: calc(589 * var(--u));
    margin: 0;
    font-size: calc(18 * var(--u));
    letter-spacing: 0.5em;
    transform: translateX(-100%);
  }

  .intro {
    position: absolute;
    z-index: 4;
    left: calc(35 * var(--u));
    top: calc(645 * var(--u));
    width: calc(510 * var(--u));
    max-width: none;
    font-size: calc(21.5 * var(--u));
    line-height: calc(25 * var(--u));
  }

  /* new sections: two columns, photo on one side and copy on the other */
  .section .inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: calc(90 * var(--u));
    align-items: center;
    min-height: calc(960 * var(--u));
    padding: calc(110 * var(--u)) calc(85 * var(--u)) calc(130 * var(--u));
  }
  .section--photo-left .inner { grid-template-areas: "figure copy"; }
  .section--photo-right .inner { grid-template-areas: "copy figure"; }
  .copy { grid-area: copy; min-width: 0; }
  .figure { grid-area: figure; margin: 0; width: 100%; }

  .copy .tagline {
    padding-bottom: calc(10 * var(--u));
    border-bottom-width: calc(2 * var(--u));
    font-size: calc(33 * var(--u));
  }
  .copy .title {
    margin: calc(30 * var(--u)) 0 0;
    font-size: calc(112 * var(--u));
    text-shadow: 0 calc(5 * var(--u)) calc(7 * var(--u)) rgba(0, 0, 0, 0.35);
  }
  .copy .lede {
    margin-top: calc(34 * var(--u));
    font-size: calc(27 * var(--u));
  }

  .blob__shadow { filter: drop-shadow(0 calc(16 * var(--u)) calc(22 * var(--u)) rgba(0, 0, 0, 0.5)); }

  .figure .fact {
    right: -3%;
    bottom: 3%;
    width: 58%;
    padding: calc(26 * var(--u)) calc(32 * var(--u));
  }
  .figure .fact p { font-size: calc(28 * var(--u)); line-height: 1.2; }

  .stats { gap: calc(36 * var(--u)); margin-top: calc(56 * var(--u)); }
  .stat { padding: calc(18 * var(--u)) calc(10 * var(--u)); }
  .stat b { font-size: calc(40 * var(--u)); }
  .stat span { font-size: calc(20 * var(--u)); }

  .steps { gap: calc(30 * var(--u)); margin-top: calc(48 * var(--u)); }
  .steps li {
    grid-template-columns: calc(64 * var(--u)) 1fr;
    gap: calc(26 * var(--u));
    font-size: calc(26 * var(--u));
  }
  .steps li::before {
    width: calc(64 * var(--u));
    height: calc(64 * var(--u));
    font-size: calc(32 * var(--u));
  }

  .chips {
    grid-template-columns: repeat(3, 1fr);
    gap: calc(22 * var(--u));
    margin-top: calc(48 * var(--u));
  }
  .chip { padding: calc(22 * var(--u)) calc(22 * var(--u)) calc(28 * var(--u)); border-top-width: calc(5 * var(--u)); }
  .chip h3 { font-size: calc(24 * var(--u)); }
  .chip p { font-size: calc(21 * var(--u)); }
}