:root {
  --abyss: #061724;
  --deep: #092b3a;
  --teal: #0f6670;
  --aqua: #58e0d0;
  --ice: #dff9f3;
  --foam: #f3fffb;
  --cobalt: #2249a8;
  --coral: #ff705b;
  --ink: #10212c;
  --line: rgba(223, 249, 243, .22);
  --shell: min(1180px, calc(100vw - 48px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--foam);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
button, a { font: inherit; }
a { color: inherit; }
.section-shell { width: var(--shell); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 100; padding: 10px 16px; color: var(--abyss); background: var(--aqua); text-decoration: none; border-radius: 2px; }
.skip-link:focus { top: 16px; }

.site-header {
  position: absolute;
  z-index: 20;
  inset: 0 0 auto 0;
  height: 92px;
  padding: 0 max(24px, calc((100vw - 1180px) / 2));
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--foam);
  border-bottom: 1px solid var(--line);
}
.brand { display: grid; grid-template-columns: 22px auto; column-gap: 10px; align-items: center; text-decoration: none; font-size: 1.18rem; letter-spacing: .16em; text-transform: uppercase; font-weight: 700; }
.brand small { grid-column: 2; font-size: .62rem; font-weight: 500; letter-spacing: .24em; opacity: .62; }
.brand-mark { grid-row: 1 / 3; width: 17px; height: 30px; border: 1px solid var(--aqua); border-radius: 70% 25% 70% 25%; transform: rotate(18deg); }
.site-nav { display: flex; gap: 36px; align-items: center; }
.site-nav a { position: relative; color: inherit; text-decoration: none; font-size: .83rem; letter-spacing: .12em; text-transform: uppercase; }
.site-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -8px; height: 1px; background: var(--aqua); transition: right .25s ease; }
.site-nav a:hover::after, .site-nav a:focus-visible::after { right: 0; }
.menu-button { display: none; color: inherit; background: transparent; border: 0; padding: 10px; }

.hero { position: relative; min-height: 820px; height: 100svh; color: var(--foam); background: var(--abyss); overflow: hidden; }
.hero-image { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(4,20,31,.96) 0%, rgba(4,20,31,.78) 34%, rgba(4,20,31,.12) 70%), url("images/aquatic-meadow-hero.webp") center / cover no-repeat; transform: scale(1.015); }
.hero::before { content: ""; position: absolute; z-index: 1; inset: 0; background: radial-gradient(circle at 78% 20%, rgba(88,224,208,.2), transparent 31%), linear-gradient(180deg, transparent 65%, rgba(6,23,36,.8)); pointer-events: none; }
.hero-content { position: relative; z-index: 2; width: var(--shell); margin-inline: auto; padding-top: clamp(180px, 22vh, 230px); }
.eyebrow { margin: 0 0 24px; color: var(--aqua); font-size: .75rem; font-weight: 700; letter-spacing: .22em; text-transform: uppercase; }
.eyebrow.dark { color: var(--teal); }
.hero h1 { margin: 0; max-width: 760px; font-family: Georgia, "Times New Roman", serif; font-size: clamp(4.8rem, 10vw, 9.6rem); font-weight: 400; line-height: .76; letter-spacing: -.065em; }
.hero h1 em { color: var(--aqua); font-weight: 400; }
.hero-lead { max-width: 520px; margin: 44px 0 0; font-size: 1.04rem; line-height: 1.8; color: rgba(243,255,251,.78); }
.round-link { position: absolute; left: min(780px, 68vw); top: clamp(510px, 67vh, 680px); display: grid; place-items: center; width: 124px; height: 124px; border: 1px solid rgba(88,224,208,.72); border-radius: 50%; color: var(--foam); text-decoration: none; text-align: center; text-transform: uppercase; letter-spacing: .1em; font-size: .7rem; transition: background .25s, color .25s, transform .25s; }
.round-link b { font-size: 1.25rem; font-weight: 400; }
.round-link:hover { color: var(--abyss); background: var(--aqua); transform: rotate(-5deg); }
.hero-caption { position: absolute; z-index: 2; right: 28px; bottom: 24px; margin: 0; font-size: .66rem; letter-spacing: .2em; text-transform: uppercase; writing-mode: vertical-rl; }
.depth-scale { position: absolute; z-index: 2; right: max(70px, calc((100vw - 1180px) / 2)); top: 150px; bottom: 100px; display: grid; grid-template-rows: auto 1fr auto 1fr auto 1fr auto; justify-items: center; font-size: .62rem; letter-spacing: .1em; opacity: .58; }
.depth-scale i { width: 1px; height: 100%; background: var(--line); }

.intro { display: grid; grid-template-columns: 80px 1fr 1fr; gap: 58px; padding-block: 150px; }
.section-number { color: var(--coral); font-size: .72rem; font-weight: 800; letter-spacing: .16em; }
.intro h2, .specimen h2, .ethics h2 { margin: 0; font-family: Georgia, "Times New Roman", serif; font-size: clamp(3rem, 6vw, 6.2rem); font-weight: 400; line-height: .95; letter-spacing: -.055em; }
.intro-text { max-width: 460px; padding-top: 38px; border-top: 1px solid rgba(16,33,44,.22); }
.intro-text p { margin: 0 0 22px; }

.atlas { padding-block: 130px 150px; color: var(--foam); background: var(--deep); }
.atlas-heading { display: flex; justify-content: space-between; align-items: end; gap: 80px; margin-bottom: 72px; }
.atlas-heading h2, .observe-head h2 { max-width: 780px; margin: 0; font-family: Georgia, "Times New Roman", serif; font-size: clamp(3.2rem, 6.5vw, 6.8rem); font-weight: 400; line-height: .94; letter-spacing: -.06em; }
.atlas-heading > p { max-width: 300px; margin: 0 0 8px; color: rgba(243,255,251,.65); }
.atlas-grid { display: grid; grid-template-columns: repeat(3, 1fr); min-height: 520px; border: 1px solid var(--line); }
.plant-card { position: relative; display: flex; flex-direction: column; justify-content: space-between; padding: 28px; border-right: 1px solid var(--line); overflow: hidden; }
.plant-card:last-child { border-right: 0; }
.plant-card::before { content: ""; position: absolute; inset: auto -20% -42% -20%; height: 78%; border-radius: 50% 50% 0 0; background: var(--card-glow); filter: blur(18px); opacity: .45; }
.plant-card--surface { --card-glow: #204ebf; }
.plant-card--column { --card-glow: #0d8f87; }
.plant-card--edge { --card-glow: #ff705b; }
.plant-card__index, .plant-card__zone, .plant-card__tag { position: relative; z-index: 1; font-size: .67rem; letter-spacing: .16em; text-transform: uppercase; }
.plant-card__index { color: rgba(243,255,251,.46); }
.plant-card__body { position: relative; z-index: 1; margin-top: auto; margin-bottom: 48px; }
.plant-card__zone { color: var(--aqua); }
.plant-card h3 { margin: 10px 0 20px; font-family: Georgia, "Times New Roman", serif; font-size: 3.2rem; font-weight: 400; line-height: 1; }
.plant-card p { max-width: 310px; color: rgba(243,255,251,.72); }
.plant-card__tag { align-self: flex-start; padding: 8px 12px; border: 1px solid var(--line); border-radius: 30px; color: rgba(243,255,251,.72); }

.specimen { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 9vw; align-items: center; padding-block: 150px; }
.specimen-image { margin: 0; }
.specimen-image img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 50% 50% 4px 50%; }
.specimen-image figcaption { max-width: 360px; margin-top: 18px; color: rgba(16,33,44,.6); font-size: .78rem; letter-spacing: .04em; }
.specimen-copy > p:not(.eyebrow) { max-width: 520px; margin: 34px 0 44px; font-size: 1.05rem; }
.fact-list { margin: 0; border-top: 1px solid rgba(16,33,44,.2); }
.fact-list div { display: grid; grid-template-columns: 140px 1fr; gap: 20px; padding: 16px 0; border-bottom: 1px solid rgba(16,33,44,.2); }
.fact-list dt { color: var(--teal); font-size: .72rem; text-transform: uppercase; letter-spacing: .16em; }
.fact-list dd { margin: 0; }

.observe { padding-block: 130px; color: var(--foam); background: var(--cobalt); }
.observe-head { display: grid; grid-template-columns: .75fr 2fr; align-items: start; margin-bottom: 70px; }
.observe-track { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid rgba(255,255,255,.28); }
.observe-track article { min-height: 330px; padding: 28px 28px 28px 0; border-right: 1px solid rgba(255,255,255,.22); }
.observe-track article:not(:first-child) { padding-left: 28px; }
.observe-track article:last-child { border-right: 0; }
.observe-track span { color: var(--aqua); font-size: .7rem; font-weight: 700; letter-spacing: .15em; }
.observe-track h3 { margin: 80px 0 16px; font-family: Georgia, "Times New Roman", serif; font-size: 2rem; font-weight: 400; }
.observe-track p { margin: 0; color: rgba(255,255,255,.72); font-size: .94rem; }

.current-note { position: relative; min-height: 500px; display: grid; place-items: center; overflow: hidden; }
.current-word { position: absolute; color: rgba(15,102,112,.07); font-family: Georgia, "Times New Roman", serif; font-size: clamp(7rem, 18vw, 15rem); line-height: 1; transform: rotate(-5deg); }
.current-note blockquote { position: relative; z-index: 1; max-width: 800px; margin: 0; font-family: Georgia, "Times New Roman", serif; font-size: clamp(2rem, 4vw, 4rem); line-height: 1.22; text-align: center; }

.ethics { display: grid; grid-template-columns: 1fr 1.05fr; gap: 7vw; align-items: center; padding-bottom: 160px; }
.ethics-lead { max-width: 530px; margin: 34px 0 42px; }
.ethics-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid rgba(16,33,44,.2); }
.ethics-list li { display: grid; grid-template-columns: 48px 1fr; gap: 12px; padding: 16px 0; border-bottom: 1px solid rgba(16,33,44,.2); }
.ethics-list span { color: var(--coral); font-size: .72rem; font-weight: 800; }
.ethics-image { margin: 0; }
.ethics-image img { width: 100%; min-height: 650px; object-fit: cover; clip-path: polygon(9% 0, 100% 0, 100% 92%, 89% 100%, 0 100%, 0 9%); }

.field-note { padding-block: 130px; color: var(--foam); background: var(--teal); }
.field-note__inner { display: grid; grid-template-columns: .8fr 1.2fr; gap: 10vw; align-items: center; }
.field-heading h2 { margin: 0; font-family: Georgia, "Times New Roman", serif; font-size: clamp(3.2rem, 6vw, 6rem); font-weight: 400; line-height: .94; letter-spacing: -.05em; }
.field-heading > p:last-child { max-width: 390px; color: rgba(243,255,251,.7); }
.note-sheet { padding: 42px; color: var(--ink); background: var(--ice); box-shadow: 20px 20px 0 rgba(6,23,36,.22); transform: rotate(1.5deg); }
.note-sheet div { display: grid; grid-template-columns: 130px 1fr; gap: 20px; align-items: end; min-height: 64px; border-bottom: 1px solid rgba(16,33,44,.28); }
.note-sheet span { font-size: .72rem; letter-spacing: .15em; text-transform: uppercase; }
.note-sheet i { height: 1px; }
.note-sheet p { margin: 34px 0 0; color: var(--teal); font-family: Georgia, "Times New Roman", serif; font-size: 1.15rem; font-style: italic; }

.closing { position: relative; min-height: 720px; display: grid; place-items: center; color: var(--foam); background: var(--abyss); overflow: hidden; }
.closing-image { position: absolute; inset: -40px; background: url("images/aquatic-meadow-hero.webp") center 38% / cover no-repeat; filter: saturate(.75) contrast(1.05); }
.closing-overlay { position: absolute; inset: 0; background: rgba(3,18,27,.65); backdrop-filter: blur(2px); }
.closing-content { position: relative; z-index: 1; width: var(--shell); text-align: center; }
.closing h2 { max-width: 900px; margin: 0 auto 48px; font-family: Georgia, "Times New Roman", serif; font-size: clamp(3.2rem, 7vw, 7rem); font-weight: 400; line-height: .95; letter-spacing: -.055em; }
.closing a { display: inline-flex; gap: 18px; align-items: center; padding-bottom: 8px; border-bottom: 1px solid var(--aqua); color: var(--aqua); text-decoration: none; text-transform: uppercase; font-size: .72rem; letter-spacing: .15em; }

.site-footer { display: grid; grid-template-columns: .7fr 1.5fr 1fr; gap: 60px; padding: 54px max(24px, calc((100vw - 1180px) / 2)); color: rgba(243,255,251,.72); background: var(--abyss); border-top: 1px solid var(--line); font-size: .76rem; }
.footer-brand { display: flex; flex-direction: column; }
.footer-brand strong { color: var(--foam); font-size: 1.1rem; letter-spacing: .15em; text-transform: uppercase; }
.site-footer nav { display: flex; flex-wrap: wrap; align-content: flex-start; gap: 12px 24px; }
.site-footer button { padding: 0; color: inherit; background: transparent; border: 0; border-bottom: 1px solid transparent; cursor: pointer; }
.site-footer button:hover, .site-footer button:focus-visible { color: var(--aqua); border-color: var(--aqua); }
.site-footer p { margin: 0; }

.legal-dialog { width: min(760px, calc(100vw - 32px)); max-height: min(820px, calc(100vh - 32px)); padding: 0; color: var(--ink); background: var(--foam); border: 0; box-shadow: 0 40px 100px rgba(0,0,0,.35); }
.legal-dialog::backdrop { background: rgba(3,18,27,.78); backdrop-filter: blur(6px); }
.dialog-head { position: sticky; top: 0; z-index: 1; display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 22px 28px; color: var(--foam); background: var(--deep); }
.dialog-head h2 { margin: 0; font-family: Georgia, "Times New Roman", serif; font-size: 1.65rem; font-weight: 400; }
.dialog-head button { width: 42px; height: 42px; flex: 0 0 auto; color: var(--aqua); background: transparent; border: 1px solid var(--line); border-radius: 50%; font-size: 1.8rem; line-height: 1; cursor: pointer; }
.dialog-content { padding: 28px; }
.dialog-content h3 { margin: 28px 0 8px; font-size: 1rem; color: var(--teal); }
.dialog-content p { margin: 0 0 14px; }

@media (max-width: 960px) {
  :root { --shell: min(100% - 36px, 760px); }
  .site-header { height: 76px; padding-inline: 18px; }
  .menu-button { display: grid; gap: 7px; width: 48px; height: 48px; place-content: center; cursor: pointer; }
  .menu-button__line { display: block; width: 24px; height: 1px; background: currentColor; transition: transform .2s; }
  .menu-button[aria-expanded="true"] .menu-button__line:first-child { transform: translateY(4px) rotate(45deg); }
  .menu-button[aria-expanded="true"] .menu-button__line:nth-child(2) { transform: translateY(-4px) rotate(-45deg); }
  .site-nav { position: absolute; top: 76px; left: 0; right: 0; display: none; padding: 24px; flex-direction: column; align-items: flex-start; gap: 20px; color: var(--foam); background: rgba(6,23,36,.97); border-bottom: 1px solid var(--line); }
  .site-nav.is-open { display: flex; }
  .hero { min-height: 760px; }
  .hero-content { padding-top: 160px; }
  .hero h1 { font-size: clamp(4.2rem, 16vw, 7rem); }
  .round-link { left: auto; right: 22px; top: auto; bottom: 64px; width: 106px; height: 106px; }
  .depth-scale { display: none; }
  .intro { grid-template-columns: 52px 1fr; gap: 36px; padding-block: 110px; }
  .intro-text { grid-column: 2; }
  .atlas-heading { align-items: start; flex-direction: column; gap: 28px; }
  .atlas-grid { grid-template-columns: 1fr; min-height: auto; }
  .plant-card { min-height: 390px; border-right: 0; border-bottom: 1px solid var(--line); }
  .plant-card:last-child { border-bottom: 0; }
  .specimen { grid-template-columns: 1fr; gap: 70px; }
  .specimen-image { max-width: 620px; }
  .observe-head { grid-template-columns: 1fr; }
  .observe-track { grid-template-columns: 1fr 1fr; }
  .observe-track article { border-bottom: 1px solid rgba(255,255,255,.22); }
  .observe-track article:nth-child(2) { border-right: 0; }
  .observe-track h3 { margin-top: 48px; }
  .ethics { grid-template-columns: 1fr; }
  .ethics-image { order: -1; }
  .ethics-image img { min-height: 480px; }
  .field-note__inner { grid-template-columns: 1fr; gap: 70px; }
  .site-footer { grid-template-columns: 1fr 1fr; }
  .site-footer > p { grid-column: 1 / -1; max-width: 600px; }
}

@media (max-width: 620px) {
  :root { --shell: calc(100% - 28px); }
  .brand small { display: none; }
  .brand-mark { grid-row: auto; }
  .hero { min-height: 720px; }
  .hero-image { background: linear-gradient(180deg, rgba(4,20,31,.72), rgba(4,20,31,.35) 45%, rgba(4,20,31,.88)), url("images/aquatic-meadow-hero.webp") 64% center / cover no-repeat; }
  .hero h1 { font-size: clamp(3.7rem, 18vw, 5.5rem); line-height: .82; }
  .hero-lead { max-width: calc(100% - 20px); margin-top: 32px; font-size: .95rem; line-height: 1.7; }
  .round-link { right: 14px; bottom: 28px; width: 96px; height: 96px; }
  .hero-caption { display: none; }
  .intro { grid-template-columns: 1fr; gap: 24px; padding-block: 88px; }
  .intro-text { grid-column: auto; padding-top: 28px; }
  .section-number { margin-bottom: 10px; }
  .intro h2, .specimen h2, .ethics h2 { font-size: clamp(2.7rem, 14vw, 4rem); }
  .atlas, .observe, .field-note { padding-block: 90px; }
  .atlas-heading h2, .observe-head h2 { font-size: clamp(2.8rem, 14vw, 4.2rem); }
  .plant-card { min-height: 370px; padding: 24px 20px; }
  .plant-card h3 { font-size: 2.7rem; }
  .specimen { padding-block: 90px; gap: 52px; }
  .observe-track { grid-template-columns: 1fr; }
  .observe-track article, .observe-track article:not(:first-child) { min-height: auto; padding: 28px 0 34px; border-right: 0; }
  .observe-track h3 { margin: 34px 0 12px; }
  .current-note { min-height: 410px; }
  .ethics { padding-bottom: 100px; }
  .ethics-image img { min-height: 360px; }
  .note-sheet { padding: 26px 20px; box-shadow: 10px 10px 0 rgba(6,23,36,.22); }
  .note-sheet div { grid-template-columns: 105px 1fr; min-height: 58px; }
  .closing { min-height: 600px; }
  .closing h2 { font-size: clamp(2.7rem, 14vw, 4.5rem); }
  .site-footer { grid-template-columns: 1fr; gap: 28px; padding-block: 42px; }
  .site-footer > p { grid-column: auto; }
  .site-footer nav { flex-direction: column; align-items: flex-start; }
  .dialog-head { padding: 18px; }
  .dialog-head h2 { font-size: 1.25rem; }
  .dialog-content { padding: 20px 18px; font-size: .94rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}