:root {
  --bg: #f2f6f8;
  --bg-alt: #e6edf2;
  --text: #0c2531;
  --muted: #4a5e68;
  --brand: #2f5869;
  --brand-dark: #1f3f4c;
  --card: #ffffff;
  --border: rgba(86, 103, 113, 0.22);
  --shadow: 0 20px 45px rgba(17, 39, 52, 0.2);
  --nav-height: 84px;
  --nav-offset: 12px;
  --collage-overlap: clamp(220px, 26vw, 320px);
  --collage-top: 240px;
  --collage-width-extra: 480px;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Philosopher', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #f7f9fa 0%, #e3eaef 100%);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main {
  padding-top: calc(var(--nav-height) + var(--nav-offset));
}

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

a {
  color: var(--brand);
  text-decoration: none;
}

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

.lightbox-trigger {
  cursor: zoom-in;
}

.media-hoverable {
  transition: transform 0.28s ease, box-shadow 0.28s ease, filter 0.28s ease;
  will-change: transform;
}

.media-hoverable:hover,
.media-hoverable:focus-visible {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 26px 42px rgba(15, 43, 58, 0.26);
  filter: brightness(1.04) saturate(1.02);
  outline: none;
}

.media-lightbox {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(16px, 4vw, 42px);
  background: rgba(7, 30, 42, 0.82);
  backdrop-filter: blur(6px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  z-index: 2000;
}

.media-lightbox.is-open {
  opacity: 1;
  pointer-events: auto;
}

.media-lightbox__frame {
  position: relative;
  width: min(1100px, 94vw);
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  gap: 14px;
  color: #f6fbff;
}

.media-lightbox__image {
  width: 100%;
  height: auto;
  max-height: calc(90vh - 70px);
  border-radius: 26px;
  box-shadow: 0 38px 70px rgba(7, 30, 42, 0.38);
  object-fit: contain;
}

.media-lightbox__caption {
  margin: 0;
  text-align: center;
  font-weight: 600;
  letter-spacing: 0.25px;
}

.media-lightbox__close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 42px;
  height: 42px;
  border-radius: 999px;
  border: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(7, 30, 42, 0.7);
  color: #f3f7fa;
  font-size: 24px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 18px 32px rgba(7, 30, 42, 0.35);
  transition: background 0.2s ease, transform 0.2s ease;
}

.media-lightbox__close:hover,
.media-lightbox__close:focus-visible {
  background: rgba(7, 30, 42, 0.9);
  transform: translateY(-2px);
  outline: none;
}

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 80px 0;
}

.section.alt {
  background: var(--bg-alt);
}

/* Header / Nav */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: transparent;
  border-bottom: none;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1120px, 92vw);
  margin: 14px auto 0;
  padding: 14px 24px;
  border-radius: 999px;
  background: rgba(242, 246, 248, 0.3);
  border: 1px solid rgba(86, 103, 113, 0.18);
  box-shadow: 0 18px 34px rgba(17, 39, 52, 0.18);
  backdrop-filter: blur(18px) saturate(1.15);
  -webkit-backdrop-filter: blur(18px) saturate(1.15);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: var(--text);
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 1px;
  color: #f7f9fb;
  background: linear-gradient(140deg, var(--brand), var(--brand-dark));
  box-shadow: 0 16px 26px rgba(86, 103, 113, 0.28);
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-name {
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.4px;
}

.brand-tag {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.32em;
  color: rgba(74, 94, 106, 0.86);
}

.nav {
  display: flex;
  align-items: center;
  gap: 26px;
}

.nav-toggle {
  display: none;
  background: rgba(7, 30, 42, 0.06);
  border: 1px solid rgba(86, 103, 113, 0.25);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 12px;
  font-size: 18px;
  box-shadow: 0 8px 16px rgba(17, 39, 52, 0.12);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 26px;
  margin: 0;
  padding: 0;
}

.nav-menu a {
  color: var(--text);
  font-weight: 600;
  letter-spacing: 0.35px;
  padding: 6px 14px;
  border-radius: 999px;
  transition: color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.nav-menu a:hover,
.nav-menu a:focus-visible {
  color: #0f2b3a;
  background: rgba(20, 53, 71, 0.12);
  box-shadow: 0 10px 18px rgba(20, 53, 71, 0.12);
}

/* Hero */
.hero {
  position: relative;
  padding-top: clamp(110px, 16vw, 150px);
  padding-bottom: 140px;
  overflow: visible;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  justify-content: start;
  gap: 32px;
}

#about {
  margin-top: calc(var(--collage-overlap) - 40px);
}

.hero-text h1 {
  font-size: clamp(34px, 6vw, 58px);
  line-height: 1.05;
  margin: 0 0 18px;
  color: var(--text);
}

.typewriter {
  position: relative;
  display: inline-block;
}

.typewriter::after {
  content: '';
  display: inline-block;
  width: 0.08em;
  height: 1em;
  margin-left: 0.08em;
  background: currentColor;
  transform: translateY(0.08em);
  animation: caret-blink 0.9s steps(1) infinite;
}

.typewriter.is-done::after {
  animation: none;
  opacity: 0;
}

.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;
}

@keyframes caret-blink {

  0%,
  49% {
    opacity: 1;
  }

  50%,
  100% {
    opacity: 0;
  }
}

.hero-text {
  position: relative;
  z-index: 2;
  padding-bottom: calc(var(--collage-overlap) + 40px);
}

.hero-collage::before {
  content: '';
  position: absolute;
  inset: -24px;
  border-radius: 48px;
  background: linear-gradient(135deg, rgba(15, 43, 58, 0.1), rgba(47, 88, 105, 0.06));
  filter: blur(32px);
  z-index: 0;
}

.hero-collage {
  position: absolute;
  left: 50%;
  top: calc(var(--collage-top) + var(--nav-offset));
  width: calc(100vw + var(--collage-width-extra));
  transform: translateX(-50%);
  pointer-events: auto;
  z-index: 1;
  overflow: visible;
}

.hero-collage::after {
  content: '';
  position: absolute;
  left: -320px;
  right: -320px;
  bottom: -260px;
  height: clamp(220px, 32vw, 340px);
  background: linear-gradient(180deg, rgba(226, 235, 241, 0.85) 0%, rgba(226, 235, 241, 0) 80%);
  z-index: -1;
  pointer-events: none;
}

.collage-strip {
  --lane-shift: 1600px;
  --scroll-duration: 125s;
  position: relative;
  display: block;
  padding: clamp(20px, 6vw, 34px) clamp(38px, 12vw, 78px);
  border-radius: 42px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.96) 0%, rgba(244, 249, 252, 0.82) 100%);
  border: 1px solid rgba(20, 53, 71, 0.08);
  box-shadow: 0 36px 60px rgba(15, 43, 58, 0.25);
  transform: rotate(-10deg);
  overflow: hidden;
}

.collage-lane {
  display: flex;
  gap: clamp(18px, 5vw, 20px);
  will-change: transform;
  animation: collage-scroll var(--scroll-duration, 46s) linear infinite;
}

.collage-track {
  position: relative;
  z-index: 1;
  --tile-width: clamp(220px, 22vw, 320px);
  --tile-height: clamp(128px, 11vw, 188px);
  display: grid;
  grid-auto-flow: column;
  grid-template-rows: repeat(2, max-content);
  grid-auto-columns: var(--tile-width);
  justify-content: center;
  align-items: center;
  column-gap: clamp(10px, 2.2vw, 20px);
  row-gap: clamp(12px, 2.6vw, 22px);
}

.collage-track--clone {
  pointer-events: none;
}

.collage-track figure {
  --offset: 0px;
  --x-shift: 0px;
  margin: 0;
  width: var(--tile-width);
  height: var(--tile-height);
  background: rgba(236, 245, 249, 0.9);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 24px 40px rgba(15, 43, 58, 0.28);
  transform-origin: center;
  transform: translate(var(--x-shift, 0px), var(--offset, 0px));
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  will-change: transform;
}

.collage-track figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: blur(8px);
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.6s ease, filter 0.6s ease;
}

.collage-track figure img.is-loaded {
  filter: blur(0);
  opacity: 1;
}

.collage-item:nth-of-type(even) {
  --x-shift: calc(var(--tile-width) / 2);
}

.collage-item--1 {
  --offset: 24px;
}

.collage-item--2 {
  --offset: -26px;
}

.collage-item--3 {
  --offset: 14px;
}

.collage-item--4 {
  --offset: -20px;
}

.collage-item--5 {
  --offset: 22px;
}

.collage-item--6 {
  --offset: -16px;
}

.collage-item--7 {
  --offset: 28px;
}

.collage-item--8 {
  --offset: -12px;
}

.collage-item--9 {
  --offset: 30px;
}

.collage-item--10 {
  --offset: -26px;
}

.collage-item--11 {
  --offset: 18px;
}

.collage-item--12 {
  --offset: -18px;
}

.collage-track figure:hover {
  transform: translate(var(--x-shift, 0px), calc(var(--offset, 0px) - 6px)) scale(1.04);
  box-shadow: 0 32px 52px rgba(15, 43, 58, 0.32);
}

.collage-track figure:hover img {
  transform: scale(1.05);
}

@keyframes collage-scroll {
  0% {
    transform: translateX(0);
  }

  100% {
    transform: translateX(calc(-1 * var(--lane-shift, 1200px)));
  }
}

@media (prefers-reduced-motion: reduce) {
  .collage-lane {
    animation: none;
  }
}

.hero-text p {
  font-size: clamp(17px, 2.4vw, 20px);
  color: var(--muted);
  margin: 0 0 26px;
  max-width: 520px;
}

.cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 18px;
  background: #143547;
  color: #f6fbff;
  border: 1px solid rgba(20, 53, 71, 0.5);
  box-shadow: 0 18px 30px rgba(20, 53, 71, 0.28);
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  background: #0f2b3a;
  color: #ffffff;
  border-color: rgba(20, 53, 71, 0.6);
  box-shadow: 0 24px 38px rgba(15, 43, 58, 0.3);
}

.btn.primary {
  background: #2f5869;
  border-color: transparent;
  color: #ffffff;
}

.btn.primary:hover {
  background: #1f3f4c;
  color: #ffffff;
  box-shadow: 0 28px 44px rgba(31, 63, 76, 0.32);
}

.hero-media {
  justify-self: end;
}

.hero-media img {
  border-radius: 22px;
  border: 10px solid #ffffff;
  box-shadow: 0 35px 50px rgba(7, 30, 42, 0.25);
}

/* Two column (About) */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.two-col p {
  color: var(--muted);
  line-height: 1.6;
}

.about-gallery {
  display: flex;
  justify-content: center;
  align-items: center;
}

.about-gallery img {
  width: min(420px, 100%);
  border-radius: 24px;
  box-shadow: var(--shadow);
  border: 6px solid #ffffff;
  margin: 0 auto;
}

/* Skills */
h2 {
  font-size: 34px;
  margin: 0 0 16px;
  color: var(--text);
}

.skill-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.skill-list li {
  background: var(--card);
  border: 1px solid var(--border);
  padding: 20px;
  border-radius: 18px;
  box-shadow: var(--shadow);
  color: var(--muted);
}

.skill-list strong {
  color: var(--brand-dark);
  font-weight: 700;
}

.skill-item {
  position: relative;
  display: grid;
  gap: 12px;
  align-items: start;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  transform-style: preserve-3d;
}

.skill-item:hover,
.skill-item:focus-within {
  transform: perspective(900px) rotateX(3deg) rotateY(-3deg) translateY(-3px);
  border-color: rgba(47, 88, 105, 0.35);
  box-shadow: 0 24px 40px rgba(15, 43, 58, 0.22);
}

.skill-item:nth-child(even):hover,
.skill-item:nth-child(even):focus-within {
  transform: perspective(900px) rotateX(3deg) rotateY(3deg) translateY(-3px);
}

.skill-icon-image {
  width: 32px;
  height: auto;
}

.skill-content {
  display: grid;
  gap: 6px;
}

.skill-content strong {
  font-size: 18px;
  letter-spacing: 0.3px;
}

.skill-content p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow);
  display: grid;
  grid-template-rows: auto 1fr;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 30px 45px rgba(24, 84, 60, 0.2);
}

.card img {
  width: 100%;
  height: 190px;
  object-fit: cover;
}

.card-body {
  padding: 20px;
  display: grid;
  gap: 12px;
}

.card-body h3 {
  margin: 0;
  color: var(--text);
}

.card-body p {
  color: var(--muted);
  margin: 0;
}

.card-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 4px;
}

.card--project {
  overflow: hidden;
}

.card-graphic {
  width: 100%;
  height: 190px;
  display: flex;
  align-items: flex-end;
  padding: 22px 24px;
  background: linear-gradient(135deg, rgba(86, 103, 113, 0.92), rgba(30, 52, 68, 0.82));
  color: #f6f9fb;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  font-size: 12px;
}

.card-graphic span {
  display: block;
  filter: drop-shadow(0 8px 18px rgba(7, 30, 42, 0.35));
}

.card-graphic--schuck {
  background: linear-gradient(130deg, #3d7c8f, #183d4a);
}

.card-graphic--threeflies {
  background: linear-gradient(130deg, #7a5ba1, #2d3a72);
}

.card-graphic--projects {
  background: linear-gradient(130deg, #7b86b6, #21292e);
}

.card--interest {
  position: relative;
  overflow: hidden;
  background: #f2f6f9;
}

.card--interest::before {
  content: '';
  position: absolute;
  inset: 0;
  background-repeat: no-repeat, no-repeat;
  background-position: top left, top 12px right 20px;
  background-size: 100% 100%, 240px auto;
  background-blend-mode: normal, multiply;
  opacity: 1;
}

.card--interest .card-body {
  position: relative;
  z-index: 1;
}

.card-body--interest {
  padding-top: 170px;
}

.card--interest .card-actions {
  margin-top: 16px;
}

.card--interest-music::before {
  background-image:
    linear-gradient(180deg, rgba(131, 155, 168, 0.4), rgba(131, 155, 168, 0.05)),
    url('../assets/music/notes.webp');
  background-size: 100% 100%, 260px auto;
}

.card--interest-sport::before {
  background-image:
    linear-gradient(180deg, rgba(84, 139, 150, 0.42), rgba(84, 139, 150, 0.06)),
    url('../assets/sport/hanteln.webp');
  background-size: 100% 100%, 260px auto;
  background-position: top left, top -15px right 30px;
}

.card--interest-investing::before {
  background-image:
    linear-gradient(180deg, rgba(104, 120, 164, 0.4), rgba(104, 120, 164, 0.05)),
    url('../assets/investing/candlesticks.webp');
  background-size: 100% 100%, 260px auto;
  background-position: top left, top 10px right 10px;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.contact-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 16px;
  display: grid;
  grid-template-columns: 48px 1fr;
  align-items: center;
  gap: 14px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  box-shadow: var(--shadow);
}

.contact-card:hover {
  transform: translateY(-4px);
  border-color: rgba(36, 176, 114, 0.35);
  box-shadow: 0 24px 40px rgba(24, 84, 60, 0.18);
}

.contact-card img {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.contact-card span {
  font-weight: 700;
  color: var(--text);
}

/* Footer */
.site-footer {
  padding: 26px 0;
  background: #f0f8f3;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 18px;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.footer-brand img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  box-shadow: var(--shadow);
  border: 4px solid #ffffff;
}

.footer-copy {
  justify-self: center;
  color: var(--muted);
}

.footer-icons {
  justify-self: end;
  opacity: 1;
}

.footer-image {
  width: 120px;
  height: auto;
}

.footer-social {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.footer-social-link {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: rgba(20, 53, 71, 0.08);
  border: 1px solid rgba(86, 103, 113, 0.25);
  box-shadow: 0 10px 18px rgba(17, 39, 52, 0.12);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.footer-social-link:hover,
.footer-social-link:focus-visible {
  transform: translateY(-2px);
  background: rgba(20, 53, 71, 0.14);
  box-shadow: 0 16px 26px rgba(17, 39, 52, 0.18);
  outline: none;
}

.footer-social-link img {
  width: 20px;
  height: 20px;
  object-fit: contain;
}

/* Responsive */
@media (max-width: 1100px) {
  :root {
    --collage-overlap: clamp(210px, 30vw, 320px);
    --collage-top: 230px;
    --collage-width-extra: 380px;
  }

  .nav-container {
    justify-content: center;
    gap: clamp(18px, 4vw, 32px);
  }

  .nav {
    justify-content: center;
  }

  .nav-menu {
    justify-content: center;
  }
}

@media (max-width: 900px) {
  :root {
    --collage-overlap: clamp(200px, 32vw, 300px);
    --collage-top: 220px;
    --collage-width-extra: 340px;
  }

  .hero {
    padding-top: clamp(100px, 18vw, 130px);
    padding-bottom: 160px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-text {
    padding-bottom: calc(var(--collage-overlap) + 40px);
  }

  .hero-media {
    justify-self: start;
  }

  .two-col {
    grid-template-columns: 1fr;
  }

  #about {
    margin-top: calc(var(--collage-overlap) - 40px);
  }

  .collage-strip {
    padding: clamp(18px, 10vw, 30px) clamp(26px, 14vw, 60px);
  }

  .collage-lane {
    gap: clamp(24px, 8vw, 64px);
  }

  .collage-track {
    --tile-width: clamp(180px, 30vw, 240px);
    --tile-height: clamp(110px, 20vw, 160px);
    column-gap: clamp(12px, 4vw, 22px);
    row-gap: clamp(12px, 4vw, 22px);
  }
}

@media (max-width: 760px) {
  :root {
    --nav-height: 76px;
    --nav-offset: 10px;
    --collage-overlap: clamp(200px, 38vw, 290px);
    --collage-top: 210px;
    --collage-width-extra: 300px;
  }

  .nav-container {
    width: min(100%, 92vw);
    padding: 12px 18px;
    margin-top: 10px;
    border-radius: 22px;
    position: relative;
  }

  .nav-toggle {
    display: inline-block;
  }

  .nav {
    position: relative;
  }

  .nav-menu {
    display: none;
    position: fixed;
    left: 0;
    right: 0;
    top: calc(100% + 12px);
    width: 100%;
    background: rgba(242, 246, 248, 0.3);
    border: 1px solid rgba(86, 103, 113, 0.95);
    border-radius: 22px;
    padding: 14px 18px;
    flex-direction: column;
    gap: 12px;
    box-shadow: 0 18px 34px rgba(17, 39, 52, 0.18);
    align-items: center;
    text-align: center;
    backdrop-filter: blur(18px) saturate(1.15);
    -webkit-backdrop-filter: blur(18px) saturate(1.15);
  }

  .nav-menu.open {
    display: flex;
  }

  .nav-menu a {
    width: 100%;
    text-align: center;
  }

  .section {
    padding: 64px 0;
  }

  .card-body--interest {
    padding-top: 140px;
  }

  .hero-text {
    padding-bottom: calc(var(--collage-overlap) + 40px);
  }

  .collage-strip {
    transform: rotate(-8deg);
    padding: 24px clamp(22px, 18vw, 44px);
    --scroll-duration: 52s;
  }

  .collage-lane {
    gap: clamp(16px, 10vw, 36px);
  }

  .collage-track {
    --tile-width: clamp(160px, 48vw, 220px);
    --tile-height: clamp(110px, 32vw, 150px);
    column-gap: clamp(10px, 6vw, 18px);
    row-gap: clamp(12px, 6vw, 18px);
  }

  .collage-item:nth-of-type(even) {
    --x-shift: calc(var(--tile-width) / 4);
  }

  .collage-item--1,
  .collage-item--5 {
    --offset: 18px;
  }

  .collage-item--3,
  .collage-item--7 {
    --offset: 10px;
  }

  .collage-item--2,
  .collage-item--6 {
    --offset: -16px;
  }

  .collage-item--4,
  .collage-item--8 {
    --offset: -10px;
  }

  .collage-item--9 {
    --offset: 16px;
  }

  .collage-item--10 {
    --offset: -14px;
  }

  .collage-item--11 {
    --offset: 10px;
  }

  .collage-item--12 {
    --offset: -12px;
  }

  #about {
    margin-top: calc(var(--collage-overlap) - 40px);
  }
}

@media (max-width: 640px) {
  :root {
    --collage-overlap: clamp(170px, 40vw, 250px);
    --collage-top: 195px;
    --collage-width-extra: 240px;
  }

  .hero {
    padding-top: clamp(96px, 18vw, 120px);
    padding-bottom: 150px;
    overflow-x: hidden;
    overflow-y: visible;
  }

  .hero-text {
    padding-bottom: calc(var(--collage-overlap) + 20px);
  }

  .hero-collage {
    position: absolute;
    top: calc(var(--collage-top) + var(--nav-offset));
    left: 50%;
    transform: translateX(-50%);
    width: calc(100vw + var(--collage-width-extra));
    margin: 0;
    z-index: 1;
  }

  .hero-collage::before {
    inset: -18px;
  }

  .hero-collage::after {
    left: -240px;
    right: -240px;
    bottom: -220px;
    display: block;
  }

  .collage-strip {
    transform: rotate(-9deg);
    padding: clamp(18px, 8vw, 26px) clamp(32px, 18vw, 48px);
    --scroll-duration: 54s;
  }

  .cta {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 12px;
    position: relative;
    z-index: 3;
  }

  .cta .btn {
    width: auto;
    min-width: 0;
  }

  #about {
    position: relative;
    z-index: 0;
    margin-top: calc(var(--collage-overlap) - 70px);
  }
}

@media (max-width: 540px) {
  :root {
    --collage-overlap: clamp(160px, 46vw, 230px);
    --collage-top: 185px;
    --collage-width-extra: 220px;
  }

  .hero {
    padding-top: clamp(88px, 20vw, 110px);
    padding-bottom: 145px;
    overflow-x: hidden;
    overflow-y: hidden;
  }

  .hero-text {
    padding-bottom: calc(var(--collage-overlap) + 20px);
  }

  .hero-collage {
    top: calc(var(--collage-top) + var(--nav-offset));
    width: calc(100vw + var(--collage-width-extra));
    z-index: 1;
  }

  .collage-strip {
    transform: rotate(-8deg);
    padding: clamp(16px, 10vw, 24px) clamp(28px, 22vw, 40px);
    --scroll-duration: 56s;
  }

  .collage-lane {
    gap: clamp(12px, 16vw, 30px);
  }

  .collage-track {
    --tile-width: clamp(140px, 70vw, 200px);
    --tile-height: clamp(100px, 42vw, 140px);
    column-gap: clamp(8px, 7vw, 16px);
    row-gap: clamp(10px, 7vw, 16px);
  }

  #about {
    position: relative;
    z-index: 0;
    margin-top: calc(var(--collage-overlap) - 70px);
  }
}

@media (max-width: 480px) {
  :root {
    --collage-overlap: clamp(150px, 52vw, 220px);
    --collage-top: 175px;
    --collage-width-extra: 200px;
  }
}