@font-face {
  font-family: 'DM Sans';
  src: url('./fonts/DMSans-Variable.ttf') format('truetype');
  font-style: normal;
  font-weight: 100 1000;
  font-display: swap;
}

@font-face {
  font-family: 'DM Sans';
  src: url('./fonts/DMSans-Italic-Variable.ttf') format('truetype');
  font-style: italic;
  font-weight: 100 1000;
  font-display: swap;
}

:root {
  --green:       #1a3d2b;
  --green-mid:   #2d6a4f;
  --green-light: #e8f0eb;
  --mint:        #7ade9a;
  --ink:         #0d0d0d;
  --ink-soft:    #3a3a3a;
  --ink-muted:   #7a7a7a;
  --paper:       #fafaf8;
  --paper-warm:  #f5f2ec;
  --dark-bg:     #0c1a10;
  --rule:        rgba(26,61,43,.18);
  --nav-height:  96px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'DM Sans', sans-serif;
  background: var(--paper);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
ul { list-style: none; }

#nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  min-height: var(--nav-height);
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem max(2.5rem, calc((100vw - 1280px) / 2));
  transition: background .35s, border-color .35s;
  border-bottom: 1px solid transparent;
}
#nav.hero-nav { background: transparent; border-color: transparent; }
#nav.hero-nav .nav-logo { color: #fff; }
#nav.hero-nav .nav-links a { color: rgba(255,255,255,.75); }
#nav.hero-nav .hamburger span { background: #fff; }
#nav.light { background: rgba(250,250,248,.96); border-color: var(--rule); }
#nav.scrolled {
  background: rgba(250,250,248,.96);
  backdrop-filter: blur(10px);
  border-color: var(--rule);
}
#nav.hero-nav.scrolled .nav-logo { color: var(--ink); }
#nav.hero-nav.scrolled .nav-links a { color: var(--ink); }
#nav.hero-nav.scrolled .hamburger span { background: var(--ink); }

.nav-logo {
  display: inline-flex;
  align-items: center;
  min-width: 0;
  width: clamp(150px, 14vw, 184px);
  max-width: calc(100vw - 120px);
  color: var(--ink);
  transition: color .3s;
  position: relative;
}
.nav-logo-mark {
  width: 65%;
  height: auto;
  object-fit: contain;
  object-position: center;
  max-width: 100%;
  flex: 0 0 auto;
}
.nav-logo-mark-home {
  width: 65%;
  height: auto;
  transition: opacity .25s ease, transform .25s ease;
}
.nav-logo-home-dark {
  position: absolute;
  inset: 50% auto auto 0;
  transform: translateY(-50%);
  opacity: 0;
  pointer-events: none;
}
#nav.hero-nav.scrolled .nav-logo-home-light {
  opacity: 0;
  transform: none;
}
#nav.hero-nav.scrolled .nav-logo-home-dark {
  opacity: 1;
  transform: translateY(-50%);
}
.nav-links {
  display: flex;
  gap: clamp(1rem, 1.8vw, 2rem);
  align-items: center;
}
.nav-links a {
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink);
  transition: color .2s;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  left: 0; bottom: -3px;
  width: 0; height: 1px;
  background: currentColor;
  transition: width .25s cubic-bezier(.22,.68,0,1.1);
}
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }
.nav-links a.active { color: var(--green); }
#nav.hero-nav:not(.scrolled) .nav-links a.active { color: #fff; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}
.hamburger span {
  display: block;
  width: 22px; height: 1.5px;
  background: var(--ink);
  transition: transform .25s, opacity .25s, background .3s;
}
.hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.mobile-menu {
  position: fixed;
  top: var(--nav-height); left: 0; right: 0;
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
  z-index: 99;
  display: none;
  flex-direction: column;
  padding: 2rem 1.5rem;
  max-height: calc(100svh - var(--nav-height));
  overflow-y: auto;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-110%);
  transition: transform .3s cubic-bezier(.22,.68,0,1.1);
}
.mobile-menu.open {
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}
.mobile-menu a {
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink);
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--rule);
  display: block;
  transition: color .2s;
}
.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu a:hover { color: var(--green); }

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .65s cubic-bezier(.22,.68,0,1.1), transform .65s cubic-bezier(.22,.68,0,1.1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

.img-ph {
  width: 100%;
  display: block;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.img-ph-nat   { background: linear-gradient(145deg, #2d5a3d 0%, #1a3d2b 45%, #0f2619 100%); }
.img-ph-water { background: linear-gradient(145deg, #1a3a4d 0%, #1e5c6e 40%, #1a3d2b 100%); }
.img-ph-earth { background: linear-gradient(145deg, #4a3728 0%, #6b4c2a 40%, #3a5a3f 100%); }
.img-ph-wide  { aspect-ratio: 21/8; }
.img-ph-tall  { aspect-ratio: 4/5; }
.beaver-photo {
  border: 1px solid rgba(26,61,43,.14);
  box-shadow: 0 28px 70px rgba(13,13,13,.08);
}
.photo-habitat {
  background-image:
    linear-gradient(135deg, rgba(16,55,35,.54), rgba(12,26,16,.18)),
    radial-gradient(circle at 72% 22%, rgba(122,222,154,.18), transparent 26%),
    url('../img/hero_bg.jpg');
  background-position: center, center, center;
}
.photo-water {
  background-image:
    linear-gradient(135deg, rgba(18,64,47,.56), rgba(12,26,16,.2)),
    radial-gradient(circle at 28% 32%, rgba(255,255,255,.12), transparent 20%),
    url('../img/hero_bg.jpg');
  background-position: center, center, 58% center;
}
.photo-detail {
  background-image:
    linear-gradient(135deg, rgba(24,69,43,.56), rgba(12,26,16,.2)),
    radial-gradient(circle at 22% 24%, rgba(255,255,255,.14), transparent 18%),
    url('../img/hero_bg.jpg');
  background-position: center, center, 48% center;
}
.photo-sec2 {
  background-image:
    linear-gradient(135deg, rgba(18,64,47,.48), rgba(12,26,16,.18)),
    radial-gradient(circle at 72% 22%, rgba(122,222,154,.14), transparent 28%),
    url('../img/sec2_bg.jpg');
  background-position: center, center, center;
}
.photo-sec3 {
  background-image:
    linear-gradient(135deg, rgba(18,64,47,.52), rgba(12,26,16,.22)),
    radial-gradient(circle at 28% 22%, rgba(122,222,154,.14), transparent 28%),
    url('../img/sec3_bg.jpg');
  background-position: center, center, center;
}
.photo-info2 {
  background-image:
    linear-gradient(135deg, rgba(18,64,47,.42), rgba(12,26,16,.14)),
    url('../img/infosec_img2.jpg');
}
.photo-info3 {
  background-image:
    linear-gradient(135deg, rgba(18,64,47,.38), rgba(12,26,16,.12)),
    url('../img/infosec_img3.jpg');
}
.photo-info4 {
  background-image:
    linear-gradient(135deg, rgba(18,64,47,.42), rgba(12,26,16,.14)),
    url('../img/infosec_img4.jpg');
}
.photo-info5 {
  background-image:
    linear-gradient(135deg, rgba(18,64,47,.42), rgba(12,26,16,.14)),
    url('../img/infosec_img5.jpg');
}
.photo-info6 {
  background-image:
    linear-gradient(135deg, rgba(18,64,47,.42), rgba(12,26,16,.14)),
    url('../img/infosec_img6.jpg');
}
.photo-info7 {
  background-image:
    linear-gradient(135deg, rgba(18,64,47,.42), rgba(12,26,16,.14)),
    url('../img/infosec_img7.jpg');
}
.photo-info8 {
  background-image:
    linear-gradient(135deg, rgba(18,64,47,.42), rgba(12,26,16,.14)),
    url('../img/infosec_img8.jpg');
}

.home-hero {
  min-height: 100vh;
  background:
    linear-gradient(135deg, rgba(18,64,47,.62), rgba(10,24,18,.34)),
    radial-gradient(circle at 76% 18%, rgba(122,222,154,.2), transparent 28%),
    url('../img/hero_bg.jpg');
  background-size: cover;
  background-position: center;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 0 2.5rem 5rem;
  position: relative;
  overflow: hidden;
}
body.home-page .home-hero {
  background-size: cover;
}
.home-hero-inner {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
  text-align: center;
}
body.home-page .home-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(250,250,248,.18) 0%, rgba(250,250,248,0) 22%, rgba(250,250,248,0) 100%);
  transform: scaleY(1);
  transform-origin: top;
  transition: transform 1.05s cubic-bezier(.22,.68,0,1.02), opacity .9s ease;
  pointer-events: none;
  z-index: 1;
}
.home-hero::before {
  content: '';
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(12,26,16,.24) 0%, rgba(12,26,16,.06) 24%, rgba(12,26,16,.4) 100%);
  pointer-events: none;
}
body.home-page .hero-eyebrow,
body.home-page .hero-headline,
body.home-page .hero-sub,
body.home-page .hero-rule,
body.home-page .hero-scroll {
  opacity: 0;
  transform: translateY(28px);
}
body.home-page .hero-headline {
  transform: translateY(34px);
}
body.home-page .hero-sub {
  transform: translateY(26px);
}
body.home-page .hero-rule {
  transform: scaleX(.86);
  transform-origin: left center;
}
body.home-page .hero-eyebrow,
body.home-page .hero-headline,
body.home-page .hero-sub,
body.home-page .hero-rule,
body.home-page .hero-scroll {
  transition:
    opacity .8s cubic-bezier(.22,.68,0,1.02),
    transform .95s cubic-bezier(.22,.68,0,1.02);
}
body.home-page.home-loaded .home-hero::after {
  transform: scaleY(0);
  opacity: 0;
}
body.home-page.home-loaded .hero-eyebrow {
  opacity: 1;
  transform: translateY(0);
  transition-delay: .08s;
  margin-bottom: 2rem;
}
body.home-page.home-loaded .hero-headline {
  opacity: 1;
  transform: translateY(0);
  transition-delay: .16s;
}
body.home-page.home-loaded .hero-sub {
  opacity: 1;
  transform: translateY(0);
  transition-delay: .28s;
}
body.home-page.home-loaded .hero-rule {
  opacity: 1;
  transform: scaleX(1);
  transition-delay: .42s;
}
body.home-page.home-loaded .hero-scroll {
  opacity: .4;
  transform: translateY(0);
  transition-delay: .54s;
}
.hero-eyebrow {
  font-size: .7rem;
  font-weight: 500;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: rgba(255,255,255,.4);
  margin-bottom: 1.5rem;
}
.hero-headline {
  font-family: 'DM Sans', sans-serif;
  font-weight: 800;
  font-size: clamp(4.5rem, 12vw, 11rem);
  line-height: .92;
  color: #fff;
  letter-spacing: -.05em;
  margin-bottom: 2.5rem;
}
.hero-headline em {
  font-style: italic;
  font-weight: 300;
  color: rgba(255,255,255,.55);
  font-size: .58em;
  display: block;
  letter-spacing: .01em;
  margin-bottom: 0;
}
.hero-headline span {
  display: block;
}
.hero-sub {
  font-size: 1rem;
  line-height: 1.65;
  color: rgba(255,255,255,.55);
  max-width: 500px;
  font-weight: 300;
  margin: 0 auto 3.5rem;
}
.hero-rule {
  width: min(100%, 560px);
  height: 1px;
  background: rgba(255,255,255,.1);
  margin: 0 auto 2rem;
}
.hero-scroll {
  display: flex;
  align-items: center;
  gap: 1rem;
  cursor: pointer;
  opacity: .4;
  transition: opacity .2s;
  width: fit-content;
  background: none;
  border: none;
  margin: 0 auto;
}
.hero-scroll:hover { opacity: 1; }
.scroll-line { width: 36px; height: 1px; background: #fff; }
.scroll-text { font-size: .7rem; letter-spacing: .2em; text-transform: uppercase; color: #fff; font-family: 'DM Sans', sans-serif; }

.stats-strip {
  background: #0d1a12;
  border-bottom: 1px solid rgba(255,255,255,.07);
  padding: 0 2.5rem;
}
.stats-strip-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.ss-item {
  padding: 2rem 2.5rem;
  border-right: 1px solid rgba(255,255,255,.07);
  display: flex;
  flex-direction: column;
  gap: .4rem;
  text-align: center;
}
.ss-item:first-child { padding-left: 0; }
.ss-item:last-child  { border-right: none; }
.ss-num {
  font-family: 'DM Sans', sans-serif;
  font-weight: 800;
  font-size: clamp(2rem, 4vw, 3.25rem);
  color: #fff;
  letter-spacing: -.05em;
  line-height: 1;
}
.ss-label {
  font-size: .68rem;
  font-weight: 500;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: rgba(255,255,255,.35);
}

.page-hero {
  padding: 10rem 2.5rem 5rem;
  border-bottom: 1px solid var(--rule);
}
.page-hero-label {
  font-size: .7rem;
  font-weight: 500;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 1.5rem;
}
.page-hero-title {
  font-family: 'DM Sans', sans-serif;
  font-weight: 800;
  font-size: clamp(3.5rem, 9vw, 8rem);
  line-height: .92;
  color: var(--ink);
  letter-spacing: -.05em;
  margin-bottom: 2rem;
}
.page-hero-sub {
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink-muted);
  max-width: 520px;
  font-weight: 300;
}
.page-hero-inner {
  max-width: 1280px;
  margin: 0 auto;
  width: 100%;
}
.steck-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 85% 15%, rgba(122,222,154,.16), transparent 28%),
    linear-gradient(180deg, #f6f2ea 0%, #fafaf8 58%, #f3efe6 100%);
}
.steck-hero::after {
  content: '';
  position: absolute;
  inset: auto -10% -120px auto;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(26,61,43,.10) 0%, rgba(26,61,43,0) 68%);
  pointer-events: none;
}
.page-hero-copy {
  max-width: 720px;
  position: relative;
  z-index: 1;
}
.hero-facts {
  margin-top: 3rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  position: relative;
  z-index: 1;
}
.hero-fact {
  padding: 1.2rem 1.25rem 1.3rem;
  border: 1px solid rgba(26,61,43,.12);
  background: rgba(255,255,255,.6);
  backdrop-filter: blur(8px);
}
.hero-fact-value {
  display: block;
  font-family: 'DM Sans', sans-serif;
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  font-weight: 800;
  line-height: .95;
  letter-spacing: -.04em;
  color: var(--green);
  margin-bottom: .4rem;
}
.hero-fact-label {
  display: block;
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.section {
  padding: 6rem 2.5rem;
  border-bottom: 1px solid var(--rule);
}
.section-inner { max-width: 1280px; margin: 0 auto; }
.section-cream { background: var(--paper-warm); }

.section-heading {
  font-family: 'DM Sans', sans-serif;
  font-weight: 800;
  font-size: clamp(2.25rem, 4vw, 3.75rem);
  line-height: 1;
  color: var(--ink);
  margin-bottom: 2rem;
  letter-spacing: -.04em;
}
.label {
  font-size: .7rem;
  font-weight: 500;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 1rem;
  display: block;
}
.label-white { color: rgba(255,255,255,.5); }
.body-text {
  font-size: 1.0625rem;
  line-height: 1.72;
  color: var(--ink-soft);
  font-weight: 300;
}
.body-text + .body-text { margin-top: 1.25rem; }
.body-text-white {
  font-size: 1.0625rem;
  line-height: 1.72;
  color: rgba(255,255,255,.6);
  font-weight: 300;
}
.body-text-white + .body-text-white { margin-top: 1.25rem; }
.body-text-sm {
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--ink-soft);
  font-weight: 300;
}
.body-text-sm + .body-text-sm { margin-top: 1rem; }

.ed-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
  max-width: 1280px;
  margin: 0 auto;
}
.ed-grid-3-5 { grid-template-columns: 3fr 5fr; }
.ed-grid-5-3 { grid-template-columns: 5fr 3fr; }

.warum-section {
  padding: 6rem 2.5rem;
  border-bottom: 1px solid var(--rule);
}
.warum-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 5rem;
  align-items: start;
}
.warum-heading {
  font-family: 'DM Sans', sans-serif;
  font-weight: 800;
  font-size: clamp(3.5rem, 7vw, 6.5rem);
  line-height: .92;
  letter-spacing: -.05em;
  color: var(--ink);
  position: sticky;
  top: 88px;
}

.wir-section {
  background: var(--green);
  padding: 6rem 2.5rem;
  border-top: none;
  border-bottom: 1px solid rgba(255,255,255,.07);
}
.wir-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}
.wir-heading {
  font-family: 'DM Sans', sans-serif;
  font-weight: 800;
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  line-height: .95;
  letter-spacing: -.05em;
  color: #fff;
  position: sticky;
  top: 88px;
}

.dive-section {
  padding: 6.5rem 2.5rem 7rem;
}
.dive-header {
  max-width: 1280px;
  margin: 0 auto 3.25rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--rule);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 2rem;
}
.dive-heading {
  font-family: 'DM Sans', sans-serif;
  font-weight: 800;
  font-size: clamp(2rem, 4vw, 3.25rem);
  letter-spacing: -.04em;
  color: var(--ink);
}
.cards-grid {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}
.card {
  display: block;
  padding: 2rem 2rem 2.15rem;
  border: 1px solid rgba(26,61,43,.1);
  background: rgba(255,255,255,.74);
  min-height: 100%;
  transition: background .2s, box-shadow .2s, transform .2s, border-color .2s;
}
.card:hover {
  background: #fff;
  border-color: rgba(26,61,43,.18);
  box-shadow: 0 22px 40px rgba(45,106,79,.08);
  transform: translateY(-3px);
}
.card-num  { font-size: .68rem; font-weight: 500; letter-spacing: .22em; color: var(--green); margin-bottom: .75rem; display: block; }
.card-sub  { font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-muted); margin-bottom: .4rem; display: block; }
.card-title {
  font-family: 'DM Sans', sans-serif;
  font-weight: 700;
  font-size: 1.625rem;
  color: var(--ink);
  line-height: 1.05;
  letter-spacing: -.03em;
  margin-bottom: 1rem;
}
.card-text { font-size: .875rem; line-height: 1.68; color: var(--ink-soft); font-weight: 300; margin-bottom: 1.5rem; }
.card-cta  { font-size: .72rem; font-weight: 500; letter-spacing: .12em; text-transform: uppercase; color: var(--green); display: flex; align-items: center; gap: .5rem; }
.card-cta .arrow { transition: transform .2s; display: inline-block; }
.card:hover .arrow { transform: translateX(4px); }

.img-block { width: 100%; border-bottom: none; overflow: hidden; }
.img-block .img-ph {
  border-radius: 0;
}
.img-block .beaver-photo {
  border: none;
  box-shadow: none;
}
.img-block .photo-habitat,
.img-block .photo-water,
.img-block .photo-detail {
  background-image:
    linear-gradient(135deg, rgba(20,71,47,.6), rgba(12,26,16,.22)),
    radial-gradient(circle at 72% 22%, rgba(122,222,154,.16), transparent 28%),
    url('../img/hero_bg.jpg');
  background-position: center, center, center;
}
.steck-intro { padding: 6rem 2.5rem; border-bottom: 1px solid var(--rule); }
.steck-intro-inner {
  max-width: 1280px; margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 5rem; align-items: start;
}
.steck-subnote {
  color: var(--ink-muted);
  max-width: 320px;
  margin-top: .85rem;
}

.anatomy-section {
  padding: 6rem 2.5rem;
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
}
.anatomy-head {
  max-width: 1280px;
  margin: 0 auto 3rem;
  display: block;
}
.anatomy-spotlight {
  max-width: 1280px;
  margin: 0 auto;
  display: block;
}
.anatomy-title {
  font-family: 'DM Sans', sans-serif;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: .98;
  letter-spacing: -.04em;
  color: var(--ink);
  margin-bottom: 1.25rem;
}
.anatomy-figure {
  position: relative;
  margin: 0;
  padding: 1rem;
  border: 1px solid rgba(26,61,43,.12);
  background: rgba(255,255,255,.52);
  backdrop-filter: blur(12px);
  width: 100%;
}
.anatomy-figure-svg {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 1.5rem;
}
.anatomy-figure-image {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 1.5rem;
  background:
    linear-gradient(135deg, rgba(12,26,16,.06), rgba(12,26,16,0)),
    #f7f5f0;
}
.anatomy-caption {
  margin-top: 1rem;
  font-size: .72rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-muted);
}
.anatomy-pin {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  color: #fff;
  z-index: 3;
}
.anatomy-pin-dot {
  width: 16px;
  height: 16px;
  border-radius: 999px;
  background: var(--green);
  border: 3px solid rgba(255,255,255,.95);
  box-shadow: 0 0 0 8px rgba(26,61,43,.12);
  transition: transform .2s ease, box-shadow .2s ease;
}
.anatomy-tooltip {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: .45rem .8rem;
  border-radius: 999px;
  background: var(--green);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  white-space: nowrap;
  transition: transform .2s ease, background .2s ease;
}
.anatomy-pin:hover .anatomy-pin-dot,
.anatomy-pin:focus-visible .anatomy-pin-dot {
  transform: scale(1.08);
  box-shadow: 0 0 0 12px rgba(26,61,43,.16);
}
.anatomy-pin:hover .anatomy-tooltip,
.anatomy-pin:focus-visible .anatomy-tooltip {
  transform: translateY(-2px);
  background: rgba(26,61,43,.96);
}
.anatomy-pin:focus-visible { outline: none; }
.anatomy-pin.is-active .anatomy-pin-dot {
  transform: scale(1.08);
  box-shadow: 0 0 0 12px rgba(26,61,43,.16);
}
.anatomy-pin.is-active .anatomy-tooltip {
  transform: translateY(-2px);
  background: rgba(26,61,43,.96);
}
.pin-teeth,
.pin-paws {
  flex-direction: row-reverse;
}
.pin-tail {
  flex-direction: row;
}
.anatomy-detail {
  position: absolute;
  width: min(320px, calc(100% - 2rem));
  padding: 1rem 1rem 1.05rem;
  border-radius: .35rem;
  background: rgba(255,255,255,.96);
  color: var(--ink);
  box-shadow: 0 20px 48px rgba(13,13,13,.14);
  border: 1px solid rgba(26,61,43,.12);
  backdrop-filter: blur(10px);
  z-index: 6;
  pointer-events: auto;
  transform: translateY(8px);
  opacity: 0;
  transition: opacity .22s ease, transform .22s ease;
}
.anatomy-detail.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.anatomy-detail-close {
  position: absolute;
  top: .35rem;
  right: .45rem;
  width: 28px;
  height: 28px;
  border: none;
  background: transparent;
  color: var(--ink-muted);
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
}
.anatomy-detail-close:hover {
  color: var(--green);
}
.anatomy-detail-num {
  display: block;
  margin-bottom: .45rem;
  padding-right: 2rem;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--green);
}
.anatomy-detail-title {
  font-family: 'DM Sans', sans-serif;
  font-size: 1.2rem;
  line-height: 1.05;
  letter-spacing: -.02em;
  margin-bottom: .65rem;
  padding-right: 2rem;
}
.anatomy-detail-text {
  font-size: .88rem;
  line-height: 1.65;
  color: var(--ink-soft);
  font-weight: 300;
}
.pin-teeth { left: 17%; top: 33%; }
.pin-tail  { left: 70%; top: 80%; }
.pin-paws  { left: 28%; top: 53%; }

.parts-section { padding: 6rem 2.5rem; border-bottom: 1px solid var(--rule); }
.parts-header {
  max-width: 1280px;
  margin: 0 auto 3rem;
}
.parts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  max-width: 1280px;
  margin: 0 auto;
  gap: 1.25rem;
}
.part-item {
  scroll-margin-top: 96px;
  padding: 2rem 2rem 2.15rem;
  border: 1px solid rgba(26,61,43,.1);
  background: rgba(255,255,255,.74);
  position: relative;
  min-height: 100%;
}
.part-item-flash {
  animation: partFlash 1.8s cubic-bezier(.22,.68,0,1.08);
}
@keyframes partFlash {
  0% {
    background: linear-gradient(120deg, rgba(122,222,154,0) 0%, rgba(122,222,154,0) 100%);
    box-shadow:
      inset 0 0 0 0 rgba(122,222,154,0),
      0 0 0 0 rgba(122,222,154,0);
    transform: translateY(0);
  }
  18% {
    background: linear-gradient(120deg, rgba(122,222,154,.08) 0%, rgba(232,240,235,.42) 46%, rgba(122,222,154,.16) 100%);
    box-shadow:
      inset 0 0 0 1px rgba(26,61,43,.18),
      0 18px 34px rgba(45,106,79,.12);
    transform: translateY(-2px);
  }
  42% {
    background: linear-gradient(120deg, rgba(122,222,154,.16) 0%, rgba(232,240,235,.62) 46%, rgba(122,222,154,.08) 100%);
    box-shadow:
      inset 0 0 0 1px rgba(26,61,43,.24),
      0 22px 40px rgba(45,106,79,.16);
    transform: translateY(-3px);
  }
  100% {
    background: linear-gradient(120deg, rgba(122,222,154,0) 0%, rgba(122,222,154,0) 100%);
    box-shadow:
      inset 0 0 0 0 rgba(122,222,154,0),
      0 0 0 0 rgba(122,222,154,0);
    transform: translateY(0);
  }
}
.part-num { font-size: .68rem; letter-spacing: .22em; color: var(--green); margin-bottom: .75rem; display: block; font-weight: 500; }
.part-title {
  font-family: 'DM Sans', sans-serif;
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--ink);
  margin-bottom: 1rem;
  line-height: 1.05;
  letter-spacing: -.03em;
}
.part-text { font-size: .9375rem; line-height: 1.7; color: var(--ink-soft); font-weight: 300; }

.facts-section { padding: 6rem 2.5rem; border-bottom: 1px solid var(--rule); background: var(--paper-warm); }
.facts-header {
  max-width: 1280px;
  margin: 0 auto 3rem;
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 3rem;
  align-items: end;
}
.facts-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  max-width: 1280px;
  margin: 0 auto;
}
.fact-item {
  padding: 2.5rem 2.5rem 2.5rem 0;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.fact-item:nth-child(4n)   { border-right: none; padding-right: 0; }
.fact-item:not(:nth-child(4n+1)) { padding-left: 2.5rem; }
.fact-item:nth-child(n+5)  { border-bottom: none; }
.fact-heading {
  font-family: 'DM Sans', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--ink);
  margin-bottom: .6rem;
  line-height: 1.2;
  letter-spacing: -.02em;
}
.fact-text { font-size: .875rem; line-height: 1.65; color: var(--ink-soft); font-weight: 300; }

.pull-quote { padding: 7rem 2.5rem; border-bottom: 1px solid var(--rule); background: var(--paper-warm); }
.pull-quote-inner { max-width: 960px; margin: 0 auto; }
.pull-quote blockquote {
  font-family: 'DM Sans', sans-serif;
  font-weight: 300;
  font-size: clamp(1.75rem, 3.5vw, 3rem);
  font-style: italic;
  line-height: 1.25;
  color: var(--ink);
  border-left: 2px solid var(--green);
  padding-left: 2.5rem;
  letter-spacing: -.02em;
}

.stats-section { padding: 6rem 2.5rem; border-bottom: 1px solid var(--rule); }
.stats-inner {
  max-width: 1280px; margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem; align-items: start;
}
.stats-left-heading {
  font-family: 'DM Sans', sans-serif;
  font-weight: 800;
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  line-height: .95;
  letter-spacing: -.05em;
  color: var(--ink);
  position: sticky; top: 88px;
}
.stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem 3.5rem; }
.stat-num {
  font-family: 'DM Sans', sans-serif;
  font-weight: 800;
  font-size: 3.75rem;
  color: var(--green);
  line-height: 1;
  letter-spacing: -.05em;
}
.stat-label { font-size: .72rem; font-weight: 500; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-muted); margin-top: .35rem; }
.stat-desc { font-size: .875rem; color: var(--ink-soft); line-height: 1.55; font-weight: 300; margin-top: .4rem; }
.stats-caption {
  max-width: 1280px; margin: 3rem auto 0;
  font-size: .9375rem; line-height: 1.7;
  color: var(--ink-soft); font-weight: 300;
  padding-top: 2.5rem;
  border-top: 1px solid var(--rule);
}

.two-col-text {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem 5rem;
  max-width: 1280px; margin: 0 auto;
}

footer { background: var(--green); padding: 5rem 2.5rem 3rem; }
.footer-inner { max-width: 1280px; margin: 0 auto; }
.footer-top {
  display: flex; align-items: flex-end; justify-content: space-between;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,.1);
  margin-bottom: 2.5rem;
}
.footer-logo {
  display: block;
}
.footer-logo-mark {
  width: clamp(110px, 16vw, 180px);
  height: auto;
  object-fit: contain;
}
.footer-links { display: flex; gap: 2rem; flex-wrap: wrap; justify-content: flex-end; align-items: center; }
.footer-links a { font-size: .72rem; font-weight: 500; letter-spacing: .16em; text-transform: uppercase; color: rgba(255,255,255,.45); transition: color .2s; }
.footer-links a:hover { color: #fff; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; }
.footer-copy, .footer-note { font-size: .72rem; color: rgba(255,255,255,.3); font-weight: 300; }
.footer-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.footer-meta a {
  font-size: .72rem;
  color: rgba(255,255,255,.42);
  font-weight: 400;
  transition: color .2s;
}
.footer-meta a:hover { color: #fff; }

#back-top {
  position: fixed; bottom: 2rem; right: 2rem;
  width: 54px; height: 54px; background: rgba(26,61,43,.94);
  color: #fff; border: 1px solid rgba(255,255,255,.12); cursor: pointer;
  border-radius: 999px;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transform: translateY(10px);
  transition: opacity .3s, transform .3s, background .2s, border-color .2s;
  z-index: 50;
  box-shadow: 0 16px 34px rgba(13,13,13,.16);
}
#back-top.visible { opacity: 1; transform: translateY(0); }
#back-top:hover { background: var(--green-mid); border-color: rgba(255,255,255,.22); }
#back-top svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

@media (max-width: 1024px) {
  .nav-logo-mark {
    width: 168px;
    height: 54px;
  }
  .nav-logo-mark-home {
    width: 168px;
    height: 54px;
  }
  .nav-links a {
    font-size: .68rem;
    letter-spacing: .14em;
  }
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-facts { grid-template-columns: 1fr; }
  .anatomy-head,
  .anatomy-spotlight,
  .facts-header { grid-template-columns: 1fr; gap: 2rem; }
  .facts-grid { grid-template-columns: repeat(2, 1fr); }
  .fact-item:nth-child(2n)   { border-right: none; padding-right: 0; }
  .fact-item:nth-child(2n+1) { padding-left: 0 !important; }
  .fact-item:nth-child(2n)   { padding-left: 2rem; }
  .fact-item:nth-child(n+5)  { border-bottom: 1px solid var(--rule); }
  .fact-item:nth-child(n+7)  { border-bottom: none; }
  .parts-grid { grid-template-columns: 1fr 1fr; }
  .part-item:nth-child(3) { grid-column: 1/-1; }
  .ed-grid-3-5, .ed-grid-5-3 { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stats-strip-inner { grid-template-columns: repeat(2, 1fr); }
  .ss-item:nth-child(2) { border-right: none; }
  .ss-item:nth-child(3) { padding-left: 0; border-top: 1px solid rgba(255,255,255,.07); }
}

@media (max-width: 768px) {
  :root { --nav-height: 84px; }
  #nav { padding: .9rem 1.5rem; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .mobile-menu { display: flex; }
  .nav-logo {
    width: 120px;
    max-width: 120px;
  }

  body.home-page .mobile-menu {
    top: 0;
    min-height: 100svh;
    max-height: 100svh;
    padding-top: calc(var(--nav-height) + 1.25rem);
    background:
      linear-gradient(135deg, rgba(18,64,47,.92), rgba(10,24,18,.82)),
      url('../img/hero_bg.jpg');
    background-size: cover;
    background-position: center;
    border-bottom: none;
  }
  body.home-page .mobile-menu a {
    color: rgba(255,255,255,.86);
    border-bottom-color: rgba(255,255,255,.12);
  }
  body.home-page .mobile-menu a:hover {
    color: #fff;
  }

  .home-hero { padding: 0 1.5rem 4rem; }
  .page-hero { padding: 8.2rem 1.5rem 3.5rem; }

  .section { padding: 4rem 1.5rem; }
  .warum-section, .wir-section, .dive-section { padding: 4rem 1.5rem; }
  .steck-intro, .parts-section, .facts-section { padding: 4rem 1.5rem; }
  .anatomy-section, .pull-quote, .stats-section { padding: 4rem 1.5rem; }
  footer { padding: 3.5rem 1.5rem 2.5rem; }
  .stats-strip { padding: 0 1.5rem; }

  .ed-grid, .ed-grid-3-5, .ed-grid-5-3,
  .warum-inner, .wir-inner, .two-col-text,
  .stats-inner, .anatomy-head, .anatomy-spotlight, .facts-header,
  .steck-intro-inner { grid-template-columns: 1fr; gap: 2.5rem; }

  .warum-heading, .wir-heading, .stats-left-heading { position: static; }

  .cards-grid { grid-template-columns: 1fr; border-left: none; }
  .card { padding: 1.7rem 1.5rem !important; }

  .facts-grid { grid-template-columns: 1fr; }
  .fact-item { border-right: none !important; padding: 1.75rem 0 !important; border-bottom: 1px solid var(--rule) !important; }
  .fact-item:last-child { border-bottom: none !important; }

  .parts-grid { grid-template-columns: 1fr; }
  .part-item { padding: 1.7rem 1.5rem !important; grid-column: auto !important; }

  .stats-strip-inner { grid-template-columns: repeat(2, 1fr); }
  .ss-item:nth-child(2) { border-right: none; }
  .ss-item:nth-child(3) { padding-left: 0; border-top: 1px solid rgba(255,255,255,.07); }
  .ss-item:nth-child(4) { border-top: 1px solid rgba(255,255,255,.07); }

  .pull-quote blockquote { padding-left: 1.5rem; }
  .dive-header { flex-direction: column; align-items: flex-start; gap: 1rem; }
  .footer-top { flex-direction: column; align-items: flex-start; gap: 2rem; }
  .footer-links { justify-content: flex-start; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .img-ph-wide { aspect-ratio: 4/3; }
  .anatomy-figure { padding: .75rem; }
  .anatomy-pin { gap: .4rem; }
  .nav-logo-mark {
    width: 100%;
    height: auto;
  }
  .nav-logo-mark-home {
    width: 100%;
    height: auto;
  }
  .footer-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: .4rem;
  }
  .anatomy-tooltip {
    font-size: .64rem;
    letter-spacing: .08em;
    padding: .4rem .6rem;
    min-height: 30px;
  }
  .anatomy-detail { display: none; }
  .pin-teeth { left: 16%; top: 46%; }
  .pin-tail  { left: 69%; top: 58%; }
  .pin-paws  { left: 38%; top: 69%; }
}

@media (max-width: 420px) {
  #nav { padding: .8rem 1rem; }
  .nav-logo {
    width: min(120px, calc(100vw - 76px));
    max-width: 120px;
  }
  .nav-logo-mark {
    width: 100%;
    height: auto;
  }
  .nav-logo-mark-home {
    width: 100%;
    height: auto;
  }
}