/* =========================================================================
   MANTEL Architektur — Stylesheet
   Inspired by big.dk: minimal, monochrome, typography-first
   ========================================================================= */

:root {
  --black: #000000;
  --white: #ffffff;
  --grey-90: #1a1a1a;
  --grey-60: #585858;
  --grey-40: #797979;
  --grey-20: #d4d4d4;
  --grey-10: #ececec;
  --grey-05: #f5f5f5;
  --accent: #0078a8;

  --font-display: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --ease-out-quart: cubic-bezier(0.165, 0.84, 0.44, 1);
  --ease-out-expo:  cubic-bezier(0.19, 1, 0.22, 1);
  --ease-snap:      cubic-bezier(0, 0, 0.25, 1);
  --ease-mantel:    cubic-bezier(0.6, 0.05, 0.2, 1);

  --dur-fast: 0.18s;
  --dur-base: 0.28s;
  --dur-slow: 0.6s;
  --dur-xslow: 1.1s;

  --header-h: 72px;
  --header-h-mobile: 56px;
  --pad-x: clamp(20px, 3.5vw, 56px);
  --grid-gap: clamp(8px, 1vw, 16px);

  --max-w: 1920px;
}

/* ---------- Reset & base ------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

body {
  font-family: var(--font-display);
  font-size: 15px;
  line-height: 1.5;
  color: var(--black);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "kern" 1, "ss01" 1;
  overflow-x: hidden;
}

img, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
ul, ol { list-style: none; }

::selection { background: var(--black); color: var(--white); }

/* ---------- Typography ------------------------------------------------- */
h1, h2, h3, h4, h5, h6 { font-weight: 400; line-height: 1.05; letter-spacing: -0.02em; }
.h-display {
  font-size: clamp(40px, 8vw, 132px);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 0.95;
}
.h-xl    { font-size: clamp(32px, 5.5vw, 72px); letter-spacing: -0.03em; line-height: 1; }
.h-l     { font-size: clamp(24px, 3.6vw, 44px); letter-spacing: -0.025em; line-height: 1.05; }
.h-m     { font-size: clamp(18px, 2vw, 24px);   letter-spacing: -0.015em; line-height: 1.2; }
.h-s     { font-size: 15px; letter-spacing: 0; line-height: 1.4; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--grey-40);
  font-weight: 500;
}

.lead {
  font-size: clamp(18px, 1.6vw, 22px);
  line-height: 1.45;
  letter-spacing: -0.01em;
  max-width: 60ch;
}

p { max-width: 70ch; }

/* ---------- Layout helpers --------------------------------------------- */
.wrap { padding-left: var(--pad-x); padding-right: var(--pad-x); }
.section { padding-top: clamp(60px, 9vw, 140px); padding-bottom: clamp(60px, 9vw, 140px); }
.divider { height: 1px; background: var(--grey-10); border: 0; }

/* ---------- Header / Navigation (plain, no mirror effects) ------------- */
.site-header {
  position: fixed; inset: 0 0 auto 0;
  height: var(--header-h);
  z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 var(--pad-x);
  color: var(--white);
  background: transparent;
  pointer-events: none;
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
  border-bottom: 1px solid transparent;
}
.site-header > * { pointer-events: auto; }
.site-header.is-solid {
  color: var(--black);
  background: rgba(255,255,255,0.96);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom-color: var(--grey-10);
}

.brand {
  display: inline-flex; align-items: baseline;
  font-weight: 500;
  font-size: 17px;
  letter-spacing: 0.02em;
}
.brand .brand-mark {
  font-weight: 500;
  letter-spacing: 0.06em;
}
.brand .brand-meta {
  margin-left: 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.7;
}

.nav { display: flex; align-items: center; gap: clamp(18px, 2.6vw, 40px); }
.nav-list {
  display: flex; align-items: center;
  gap: clamp(18px, 2.6vw, 36px);
}

/* Plain nav links: muted by default, full opacity on hover/active.
   Active state gets a thin underline. No duplicated text, no
   mix-blend, no slide-up effects. */
.nav-link {
  position: relative;
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  padding: 8px 0;
  color: inherit;
  opacity: 0.6;
  transition: opacity 0.18s ease;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 4px;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease-mantel);
}
.nav-link:hover,
.nav-link:focus-visible { opacity: 1; }
.nav-link:hover::after,
.nav-link:focus-visible::after,
.nav-link.is-active::after { transform: scaleX(1); }
.nav-link.is-active { opacity: 1; }

.lang {
  display: inline-flex; gap: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.lang a { padding: 4px 6px; opacity: 0.55; transition: opacity var(--dur-fast); }
.lang a.is-active { opacity: 1; }
.lang a:hover { opacity: 1; }
.lang .sep { opacity: 0.35; }

/* Mobile burger */
.burger {
  display: none;
  width: 32px; height: 32px;
  position: relative;
}
.burger span {
  position: absolute; left: 4px; right: 4px;
  height: 1.5px; background: currentColor;
  transition: transform var(--dur-base) var(--ease-mantel),
              opacity var(--dur-fast),
              top var(--dur-base) var(--ease-mantel);
}
.burger span:nth-child(1) { top: 11px; }
.burger span:nth-child(2) { top: 19px; }
body.menu-open .burger span:nth-child(1) { top: 15px; transform: rotate(45deg); }
body.menu-open .burger span:nth-child(2) { top: 15px; transform: rotate(-45deg); }

/* Mobile menu overlay */
.mobile-menu {
  position: fixed; inset: 0;
  background: var(--white); color: var(--black);
  z-index: 95;
  display: flex; flex-direction: column;
  padding: calc(var(--header-h-mobile) + 32px) var(--pad-x) var(--pad-x);
  transform: translateY(-100%);
  transition: transform 0.55s var(--ease-out-expo);
  pointer-events: none;
}
body.menu-open .mobile-menu { transform: translateY(0); pointer-events: auto; }
.mobile-menu .m-list { display: flex; flex-direction: column; gap: 6px; margin-top: 12px; }
.mobile-menu .m-list a {
  font-size: clamp(36px, 9vw, 56px);
  font-weight: 400;
  letter-spacing: -0.025em;
  display: block;
  padding: 6px 0;
  overflow: hidden;
}
.mobile-menu .m-list a span {
  display: inline-block;
  transform: translateY(110%);
  transition: transform 0.65s var(--ease-out-expo);
}
body.menu-open .mobile-menu .m-list a span { transform: translateY(0); }
body.menu-open .mobile-menu .m-list li:nth-child(1) a span { transition-delay: 0.18s; }
body.menu-open .mobile-menu .m-list li:nth-child(2) a span { transition-delay: 0.24s; }
body.menu-open .mobile-menu .m-list li:nth-child(3) a span { transition-delay: 0.30s; }
body.menu-open .mobile-menu .m-list li:nth-child(4) a span { transition-delay: 0.36s; }
body.menu-open .mobile-menu .m-list li:nth-child(5) a span { transition-delay: 0.42s; }
body.menu-open .mobile-menu .m-list li:nth-child(6) a span { transition-delay: 0.48s; }
.mobile-menu .m-meta {
  margin-top: auto;
  display: flex; justify-content: space-between; align-items: flex-end;
  padding-top: 32px;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.06em;
  color: var(--grey-40);
}

/* ---------- Hero ------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: var(--header-h) var(--pad-x) clamp(40px, 6vw, 96px);
  overflow: hidden;
  background: var(--black);
  color: var(--white);
}
.hero-media {
  position: absolute; inset: 0;
  z-index: 0;
}
.hero-media img,
.hero-media video {
  width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  opacity: 0;
  transition: opacity 1.4s var(--ease-out-expo), transform 8s linear;
}
.hero-media img.is-current { opacity: 1; transform: scale(1.04); }
.hero-media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.25) 0%, rgba(0,0,0,0) 35%, rgba(0,0,0,0.55) 100%);
  z-index: 1;
}
.hero-inner { position: relative; z-index: 2; max-width: var(--max-w); margin: 0 auto; width: 100%; }
.hero-eyebrow {
  display: flex; gap: 18px; align-items: center;
  margin-bottom: clamp(20px, 3vw, 40px);
}
.hero-eyebrow .dot { width: 6px; height: 6px; background: currentColor; border-radius: 50%; }
.hero-claim {
  font-size: clamp(48px, 11vw, 200px);
  line-height: 0.92;
  letter-spacing: -0.045em;
  font-weight: 400;
}
.hero-meta {
  display: flex; flex-wrap: wrap; gap: clamp(20px, 3vw, 80px);
  margin-top: clamp(24px, 4vw, 48px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.hero-meta div span { display: block; opacity: 0.6; margin-bottom: 4px; }

.hero-scroll {
  position: absolute; right: var(--pad-x); bottom: clamp(28px, 4vw, 56px);
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em;
  text-transform: uppercase;
  z-index: 2;
}
.hero-scroll .arrow {
  width: 1px; height: 36px; background: currentColor; position: relative;
  animation: scrollPulse 2.2s var(--ease-mantel) infinite;
}
@keyframes scrollPulse {
  0%, 100% { transform: scaleY(1); transform-origin: top; opacity: 1; }
  50%      { transform: scaleY(0.4); transform-origin: bottom; opacity: 0.4; }
}

/* Letter reveal for hero claim */
.split-line { overflow: hidden; display: block; }
.split-line .word {
  display: inline-block;
  transform: translateY(110%);
  transition: transform 1.2s var(--ease-out-expo);
}
.is-loaded .split-line .word { transform: translateY(0); }
.split-line .word:nth-child(2) { transition-delay: 0.08s; }
.split-line .word:nth-child(3) { transition-delay: 0.16s; }
.split-line .word:nth-child(4) { transition-delay: 0.24s; }
.split-line .word:nth-child(5) { transition-delay: 0.32s; }
.split-line .word:nth-child(6) { transition-delay: 0.40s; }

/* ---------- Project grid ----------------------------------------------- */
.project-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--grid-gap);
  padding: 0 var(--pad-x);
}
.project {
  position: relative;
  overflow: hidden;
  background: var(--grey-05);
  text-decoration: none;
  color: inherit;
  display: block;
}
/* Tile size variants — varied like big.dk's irregular grid */
.project.span-12 { grid-column: span 12; }
.project.span-8  { grid-column: span 8; }
.project.span-6  { grid-column: span 6; }
.project.span-5  { grid-column: span 5; }
.project.span-4  { grid-column: span 4; }
.project.span-7  { grid-column: span 7; }
.project.h-tall  { aspect-ratio: 3/4; }
.project.h-med   { aspect-ratio: 4/3; }
.project.h-square{ aspect-ratio: 1/1; }
.project.h-wide  { aspect-ratio: 16/9; }

@media (max-width: 900px) {
  .project.span-4, .project.span-5 { grid-column: span 6; }
  .project.span-6, .project.span-7, .project.span-8 { grid-column: span 12; }
}
@media (max-width: 600px) {
  .project { grid-column: span 12 !important; }
}

.project .ratio {
  position: absolute; inset: 0;
  overflow: hidden;
}
.project .ratio img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  transition: transform 1.1s var(--ease-out-expo), filter 0.6s var(--ease-mantel);
  will-change: transform;
}
.project::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0) 50%, rgba(0,0,0,0.55) 100%);
  opacity: 0;
  transition: opacity var(--dur-base) var(--ease-mantel);
  pointer-events: none;
  z-index: 1;
}
.project .meta {
  position: absolute;
  left: 18px; right: 18px; bottom: 16px;
  z-index: 2;
  color: var(--white);
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 16px;
  transform: translateY(8px);
  opacity: 0;
  transition: transform var(--dur-base) var(--ease-mantel), opacity var(--dur-base);
}
.project .meta .title {
  font-size: clamp(13px, 1vw, 16px);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.project .meta .loc {
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.85;
}
.project .meta .arrow {
  font-family: var(--font-mono);
  font-size: 14px;
  transition: transform var(--dur-base) var(--ease-mantel);
}
.project:hover .ratio img { transform: scale(1.045); }
.project:hover::after,
.project:focus-visible::after { opacity: 1; }
.project:hover .meta,
.project:focus-visible .meta { transform: translateY(0); opacity: 1; }
.project:hover .meta .arrow { transform: translateX(6px); }

/* Project tiles always show subtle bottom info even without hover (compact label) */
.project .label-fixed {
  position: absolute;
  left: 18px; bottom: 16px; z-index: 2;
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  mix-blend-mode: difference;
  opacity: 0.9;
  transform: translateY(0);
  transition: opacity var(--dur-base);
}
.project:hover .label-fixed { opacity: 0; }

/* ---------- Filter bar ------------------------------------------------- */
.filter-bar {
  display: flex; flex-wrap: wrap; align-items: center;
  gap: 4px;
  padding: 0 var(--pad-x);
  margin-bottom: clamp(20px, 3vw, 40px);
  border-bottom: 1px solid var(--grey-10);
}
.filter-chip {
  position: relative;
  padding: 14px 16px 14px 0;
  margin-right: 18px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--grey-40);
  transition: color var(--dur-fast);
}
.filter-chip .count {
  font-family: var(--font-mono);
  font-size: 9px;
  margin-left: 4px;
  vertical-align: super;
  opacity: 0.7;
}
.filter-chip::after {
  content: "";
  position: absolute;
  left: 0; bottom: -1px;
  height: 1px; width: 0;
  background: var(--black);
  transition: width 0.4s var(--ease-mantel);
}
.filter-chip:hover { color: var(--black); }
.filter-chip.is-active { color: var(--black); }
.filter-chip.is-active::after { width: calc(100% - 16px); }

/* Filter motion: items collapse out of layout so others move up
   (JS handles the fade-out before display:none, plus FLIP for sliders) */
.project.is-hidden { display: none; }

/* ---------- Section blocks --------------------------------------------- */
.intro-block {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--grid-gap);
  padding: 0 var(--pad-x);
}
.intro-block .col-label { grid-column: span 3; }
.intro-block .col-body  { grid-column: 5 / span 7; }
@media (max-width: 800px) {
  .intro-block .col-label { grid-column: span 12; margin-bottom: 12px; }
  .intro-block .col-body  { grid-column: span 12; }
}

.facts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--grid-gap);
  padding: 0 var(--pad-x);
}
@media (max-width: 800px) { .facts { grid-template-columns: repeat(2, 1fr); } }
.fact {
  border-top: 1px solid var(--black);
  padding-top: 18px; padding-bottom: 8px;
}
.fact .num {
  font-size: clamp(34px, 4.6vw, 56px);
  letter-spacing: -0.03em;
  line-height: 1;
}
.fact .lab {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--grey-40);
  margin-top: 8px;
}

/* ---------- Services list --------------------------------------------- */
.services { padding: 0 var(--pad-x); }
.service-row {
  display: grid;
  grid-template-columns: 80px 1fr 1.5fr 80px;
  gap: 24px;
  padding: 28px 0;
  border-top: 1px solid var(--grey-10);
  align-items: baseline;
}
.service-row:last-child { border-bottom: 1px solid var(--grey-10); }
.service-row .num { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em; color: var(--grey-40); }
.service-row .name { font-size: clamp(22px, 2.2vw, 30px); letter-spacing: -0.02em; }
.service-row .desc { color: var(--grey-60); }
.service-row .arrow { text-align: right; font-family: var(--font-mono); transition: transform var(--dur-base) var(--ease-mantel); }
.service-row:hover .arrow { transform: translateX(8px); }
.service-row:hover .name {
  /* subtle sliding effect */
  transform: translateX(4px);
  transition: transform var(--dur-base) var(--ease-mantel);
}
.service-row .name { transition: transform var(--dur-base) var(--ease-mantel); }
@media (max-width: 700px) {
  .service-row { grid-template-columns: 50px 1fr; }
  .service-row .desc { grid-column: 2; color: var(--grey-60); }
  .service-row .arrow { display: none; }
}

/* ---------- Team grid -------------------------------------------------- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 2vw, 32px) clamp(20px, 3vw, 48px);
  padding: 0 var(--pad-x);
}
@media (max-width: 800px) { .team-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 500px) { .team-grid { grid-template-columns: 1fr; } }

.member { padding: 24px 0 28px; border-top: 1px solid var(--black); }
.member .name { font-size: clamp(20px, 1.8vw, 26px); letter-spacing: -0.015em; }
.member .role {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--grey-40);
  margin-top: 6px;
}
.member .bio { margin-top: 10px; color: var(--grey-60); font-size: 14px; line-height: 1.5; }

/* ---------- Contact ---------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(24px, 4vw, 80px);
  padding: 0 var(--pad-x);
}
@media (max-width: 800px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-block dt {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--grey-40);
  margin-bottom: 6px;
}
.contact-block dd {
  font-size: clamp(20px, 2vw, 26px);
  letter-spacing: -0.015em;
  margin-bottom: clamp(20px, 2.4vw, 32px);
  margin-left: 0;
}
.contact-block dd a { position: relative; padding-bottom: 2px; background-image: linear-gradient(currentColor, currentColor); background-size: 100% 1px; background-position: 0 100%; background-repeat: no-repeat; transition: background-size 0.6s var(--ease-mantel); }
.contact-block dd a:hover { background-size: 0% 1px; background-position: 100% 100%; }

/* ---------- CTA / Banner ----------------------------------------------- */
.banner {
  background: var(--black); color: var(--white);
  padding: clamp(60px, 9vw, 140px) var(--pad-x);
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--grid-gap);
}
.banner h2 {
  grid-column: 1 / span 8;
  font-size: clamp(36px, 6vw, 88px);
  letter-spacing: -0.035em;
  line-height: 1.02;
}
.banner .cta {
  grid-column: 9 / span 4;
  display: flex; align-items: flex-end; justify-content: flex-end;
}
@media (max-width: 800px) {
  .banner h2 { grid-column: span 12; }
  .banner .cta { grid-column: span 12; justify-content: flex-start; margin-top: 24px; }
}
.btn {
  display: inline-flex; align-items: center; gap: 14px;
  padding: 14px 22px;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-size: 12px; font-weight: 500;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  position: relative; overflow: hidden;
  transition: color var(--dur-base) var(--ease-mantel);
}
.btn::before {
  content: "";
  position: absolute; inset: 0;
  background: currentColor;
  transform: translateY(102%);
  transition: transform 0.5s var(--ease-out-expo);
  z-index: 0;
}
.btn span { position: relative; z-index: 1; transition: color var(--dur-base) var(--ease-mantel); }
.btn:hover::before { transform: translateY(0); }
.btn:hover { color: var(--black); }
.btn:hover span { color: var(--white); }
.banner .btn:hover { color: var(--white); }
.banner .btn:hover span { color: var(--black); }
.btn .arrow { font-size: 14px; transition: transform var(--dur-base) var(--ease-mantel); }
.btn:hover .arrow { transform: translateX(4px); }

/* ---------- Footer ----------------------------------------------------- */
.site-footer {
  background: var(--black); color: var(--white);
  padding: clamp(60px, 7vw, 100px) var(--pad-x) 24px;
}
.foot-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: clamp(20px, 3vw, 48px);
  align-items: start;
}
@media (max-width: 800px) {
  .foot-grid { grid-template-columns: 1fr 1fr; }
}
.foot-grid h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--grey-40);
  margin-bottom: 14px;
  font-weight: 500;
}
.foot-grid li { padding: 4px 0; }
.foot-grid a { position: relative; }
.foot-grid a::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: -2px;
  height: 1px; background: currentColor;
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.4s var(--ease-mantel);
}
.foot-grid a:hover::after { transform: scaleX(1); }

.foot-claim {
  font-size: clamp(28px, 4vw, 52px);
  letter-spacing: -0.025em;
  line-height: 1;
  margin-bottom: 24px;
}
.foot-bar {
  display: flex; flex-wrap: wrap; justify-content: space-between;
  margin-top: clamp(40px, 6vw, 80px);
  padding-top: 18px;
  border-top: 1px solid #333;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--grey-40);
}
.foot-bar a:hover { color: var(--white); }

/* ---------- Single project / detail page ------------------------------ */
.proj-hero {
  position: relative;
  padding: calc(var(--header-h) + 24px) var(--pad-x) clamp(40px, 6vw, 80px);
}
.proj-hero h1 {
  font-size: clamp(42px, 7vw, 110px);
  letter-spacing: -0.04em;
  line-height: 0.95;
  margin: clamp(20px, 3vw, 36px) 0;
}

/* ---------- 404 -------------------------------------------------------- */
.error-stage {
  min-height: 100vh; display: flex; flex-direction: column; justify-content: center;
  padding: var(--header-h) var(--pad-x) 60px;
  background: var(--black); color: var(--white);
}
.error-stage .big { font-size: clamp(120px, 28vw, 360px); line-height: 0.85; letter-spacing: -0.06em; }
.error-stage .sub { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--grey-40); margin-top: 24px; }

/* ---------- Page transition curtain (CSS-only, currently unused) ------ */
.curtain {
  position: fixed; inset: 0;
  background: var(--black);
  z-index: 200;
  transform: translateY(100%);
  pointer-events: none;
  transition: transform 0.6s var(--ease-out-expo);
}
.curtain.is-out { transform: translateY(0); }
.curtain.is-in  { transform: translateY(-100%); }

/* ---------- Reveal on scroll ------------------------------------------ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 1s var(--ease-out-expo), transform 1s var(--ease-out-expo);
  will-change: transform, opacity;
}
.reveal.is-in { opacity: 1; transform: none; }

.reveal-img { overflow: hidden; }
.reveal-img > img,
.reveal-img > picture {
  transform: scale(1.18);
  transition: transform 1.6s var(--ease-out-expo), opacity 1.2s;
  opacity: 0;
}
.reveal-img.is-in > img,
.reveal-img.is-in > picture { transform: scale(1); opacity: 1; }

/* Stagger children */
.stagger > * { transition-delay: 0s; }
.stagger.is-in > *:nth-child(1) { transition-delay: 0.05s; }
.stagger.is-in > *:nth-child(2) { transition-delay: 0.10s; }
.stagger.is-in > *:nth-child(3) { transition-delay: 0.15s; }
.stagger.is-in > *:nth-child(4) { transition-delay: 0.20s; }
.stagger.is-in > *:nth-child(5) { transition-delay: 0.25s; }
.stagger.is-in > *:nth-child(6) { transition-delay: 0.30s; }
.stagger.is-in > *:nth-child(7) { transition-delay: 0.35s; }
.stagger.is-in > *:nth-child(8) { transition-delay: 0.40s; }

/* ---------- Marquee ---------------------------------------------------- */
.marquee { overflow: hidden; padding: clamp(14px, 1.6vw, 22px) 0; border-top: 1px solid var(--grey-10); border-bottom: 1px solid var(--grey-10); }
.marquee .track {
  display: inline-flex; gap: 56px;
  white-space: nowrap;
  animation: marquee 50s linear infinite;
  padding-left: 56px;
}
.marquee span {
  font-size: clamp(20px, 2.4vw, 36px);
  letter-spacing: -0.02em;
  display: inline-flex; align-items: center; gap: 56px;
  color: var(--grey-60);
}
.marquee span::after { content: "✦"; color: var(--grey-20); }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ---------- Responsive nav ------------------------------------------- */
@media (max-width: 800px) {
  .site-header { height: var(--header-h-mobile); }
  .nav-list { display: none; }
  .lang { display: none; }
  .burger { display: inline-block; }
  .hero { padding-top: var(--header-h-mobile); }
}

/* ---------- Utility ---------------------------------------------------- */
.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;
}
.text-mono { font-family: var(--font-mono); }
.text-up { text-transform: uppercase; letter-spacing: 0.1em; }
.muted { color: var(--grey-40); }
.bordered-top { border-top: 1px solid var(--grey-10); padding-top: clamp(28px, 4vw, 60px); }

/* =========================================================================
   Vertical project stack — big.dk-inspired full-bleed sequence
   With velocity-driven Z-axis recession (driven by JS via --scroll-z)
   ========================================================================= */

:root { --scroll-z: 0; }

.projects-stack-wrap {
  padding: 0 var(--pad-x) clamp(80px, 10vw, 140px);
}

.projects-stack {
  display: flex;
  flex-direction: column;
  gap: clamp(32px, 4.5vw, 72px);
  max-width: 1080px;
  margin-inline: auto;
}

.stack-item {
  display: block;
  /* No transform / will-change on the article itself — the tile
     must be a stable, hit-testable click target at all times.
     The entrance effect lives on .stack-media img (scale + fade)
     where it can't interfere with pointer events. */
}

.stack-item.is-hidden { display: none; }

.stack-link {
  display: block;
  text-decoration: none;
  color: inherit;
  position: relative;
}

.stack-media {
  position: relative;
  width: 100%;
  aspect-ratio: 16/7;
  max-height: 58vh;
  overflow: hidden;
  background: var(--grey-05);
  margin: 0;
}
.stack-media img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  transform: scale(1.06);
  opacity: 0;
  transition: transform 1.6s var(--ease-out-expo), opacity 1.2s var(--ease-out-expo);
  will-change: transform, opacity;
}
.stack-item.is-in .stack-media img { transform: scale(1); opacity: 1; }
.stack-item:hover .stack-media img {
  transform: scale(1.035);
  transition: transform 1.4s var(--ease-out-expo);
}

.stack-info {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: baseline;
  gap: 24px;
  padding: 18px 0 0;
  border-top: 1px solid var(--grey-10);
  margin-top: 14px;
  /* Layout matches big.dk's "number / title / meta" footer rhythm */
}

.stack-info .stack-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--grey-40);
  align-self: end;
  min-width: 90px;
}

.stack-info .stack-title {
  font-size: clamp(28px, 4.2vw, 60px);
  letter-spacing: -0.025em;
  line-height: 1;
  font-weight: 400;
  margin: 0;
  /* Reposition title to fill middle column */
  grid-column: 2;
}

.stack-info .stack-meta {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--grey-40);
  white-space: nowrap;
  align-self: end;
  text-align: right;
}
.stack-info .stack-meta .dot { opacity: 0.5; }

/* Subtle hover "→" pseudo-arrow at far right */
.stack-link::after {
  content: "↗";
  position: absolute;
  right: 0; bottom: 22px;
  font-family: var(--font-mono);
  font-size: 16px;
  opacity: 0;
  transform: translate(-12px, 4px);
  transition: opacity var(--dur-base) var(--ease-mantel), transform var(--dur-base) var(--ease-mantel);
  pointer-events: none;
}
.stack-item:hover .stack-link::after,
.stack-item:focus-within .stack-link::after {
  opacity: 1;
  transform: translate(0, 0);
}

@media (max-width: 800px) {
  .projects-stack { gap: clamp(56px, 12vw, 90px); }
  .stack-info {
    grid-template-columns: 1fr;
    gap: 6px;
    padding-top: 14px;
    margin-top: 10px;
  }
  .stack-info .stack-title { grid-column: 1; }
  .stack-info .stack-meta { justify-self: start; text-align: left; }
  .stack-link::after { display: none; }
}

/* When user prefers reduced motion: lock Z and image intro instantly */
@media (prefers-reduced-motion: reduce) {
  .stack-item { transform: none !important; opacity: 1 !important; }
  .stack-media img { transform: none !important; opacity: 1 !important; }
}

/* =========================================================================
   Project detail — horizontal-scroll panels (sticky-translate technique)
   Total page-scroll = panels × 100vh; inner track translates horizontally.
   Falls back to vertical stack on narrow screens.
   ========================================================================= */

.proj-detail { background: var(--white); }

.hscroll-section {
  --panels: 5;
  height: calc(var(--panels) * 100vh);
  position: relative;
}
.hscroll-sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: hidden;
}
.hscroll-track {
  display: flex;
  height: 100%;
  width: calc(var(--panels) * 100vw);
  will-change: transform;
}

.panel {
  flex: 0 0 100vw;
  width: 100vw;
  height: 100%;
  position: relative;
  overflow: hidden;
}

/* ----- Panel 1: Hero ----- */
.panel-hero {
  background: var(--black);
  color: var(--white);
}
.panel-hero .pheader-img {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center 30%;
}
.panel-hero .pheader-img::after {
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(0,0,0,0.45) 0%, rgba(0,0,0,0) 30%, rgba(0,0,0,0.55) 100%);
}
.panel-hero .pheader-content {
  position: relative; z-index: 2;
  height: 100%;
  display: flex; flex-direction: column; justify-content: space-between;
  padding: calc(var(--header-h) + 28px) clamp(40px, 6vw, 90px) clamp(36px, 5vw, 80px);
}
.panel-hero .pheader-top {
  display: flex; justify-content: space-between; align-items: flex-start;
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
}
.panel-hero .pheader-top .crumb { opacity: 0.85; }
.panel-hero .pheader-top .crumb a { color: inherit; }
.panel-hero .pheader-top .nr {
  letter-spacing: 0.16em;
}

.panel-hero .pheader-bottom { max-width: 1400px; }
.panel-hero .pheader-bottom .eb {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  margin-bottom: clamp(14px, 1.4vw, 22px);
  opacity: 0.85;
}
.panel-hero .pheader-bottom h1 {
  font-size: clamp(48px, 9vw, 152px);
  letter-spacing: -0.045em;
  line-height: 0.92;
  font-weight: 400;
  margin: 0 0 clamp(20px, 2.4vw, 36px);
  max-width: 16ch;
}
.panel-hero .pheader-meta {
  display: flex;
  gap: clamp(24px, 4vw, 64px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  flex-wrap: wrap;
}
.panel-hero .pheader-meta div span {
  display: block;
  opacity: 0.55;
  margin-bottom: 6px;
}

.scroll-hint {
  position: absolute;
  bottom: clamp(36px, 4vw, 56px);
  right: clamp(40px, 6vw, 90px);
  z-index: 3;
  display: inline-flex; align-items: center; gap: 14px;
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--white);
}
.scroll-hint .arrow {
  display: inline-block;
  width: 26px; height: 1px;
  background: currentColor;
  position: relative;
  animation: hintMove 1.8s var(--ease-mantel) infinite;
}
.scroll-hint .arrow::after {
  content: "";
  position: absolute; right: 0; top: -3px;
  width: 7px; height: 7px;
  border-right: 1px solid currentColor;
  border-top: 1px solid currentColor;
  transform: rotate(45deg);
}
@keyframes hintMove {
  0%, 100% { transform: translateX(0);  opacity: 0.7; }
  50%      { transform: translateX(8px); opacity: 1;   }
}

/* ----- Panel 2: Concept text ----- */
.panel-text {
  display: grid;
  grid-template-columns: 0.8fr 1.4fr;
  align-items: center;
  gap: clamp(40px, 6vw, 100px);
  padding: clamp(60px, 8vw, 110px) clamp(40px, 6vw, 90px);
  background: var(--white);
}
.panel-text .label {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--grey-40);
  align-self: flex-start;
}
.panel-text .label .num {
  display: block;
  color: var(--black);
  font-size: clamp(40px, 5vw, 64px);
  letter-spacing: -0.03em;
  margin-bottom: 18px;
}
.panel-text .body { max-width: 60ch; }
.panel-text .body h2 {
  font-size: clamp(28px, 3.4vw, 48px);
  letter-spacing: -0.025em;
  line-height: 1.05;
  margin: 0 0 24px;
  font-weight: 400;
}
.panel-text .body p {
  font-size: clamp(15px, 1vw, 17px);
  line-height: 1.55;
  margin: 0 0 16px;
  color: var(--grey-60);
}

/* ----- Panel 3: Visual moment ----- */
.panel-image {
  background: var(--black);
}
.panel-image .pimg {
  position: absolute; inset: 0;
  background-size: cover;
  /* Shifted crop to feel like a "second view" of the same project */
  background-position: 70% 80%;
  transform: scale(1.08);
}
.panel-image .pimg::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(0deg, rgba(0,0,0,0.55) 0%, rgba(0,0,0,0) 40%);
}
.panel-image .caption {
  position: absolute;
  left: clamp(40px, 6vw, 90px);
  bottom: clamp(36px, 5vw, 70px);
  z-index: 2;
  color: var(--white);
}
.panel-image .caption .eb {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  margin-bottom: 10px;
  opacity: 0.7;
}
.panel-image .caption .ct {
  font-size: clamp(20px, 2vw, 26px);
  letter-spacing: -0.015em;
  max-width: 32ch;
  line-height: 1.25;
}

/* ----- Panel 4: Facts ----- */
.panel-facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 5vw, 90px);
  align-items: start;
  padding: clamp(60px, 8vw, 110px) clamp(40px, 6vw, 90px);
  background: var(--white);
}
.panel-facts .facts-list .label {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--grey-40);
  margin-bottom: 24px;
}
.panel-facts .facts-list dl {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 0;
  border-top: 1px solid var(--black);
  margin: 0;
}
.panel-facts .facts-list dt,
.panel-facts .facts-list dd {
  padding: 16px 0;
  border-bottom: 1px solid var(--grey-10);
  margin: 0;
}
.panel-facts .facts-list dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--grey-40);
  align-self: center;
}
.panel-facts .facts-list dd {
  font-size: clamp(14px, 1vw, 16px);
  letter-spacing: -0.005em;
  align-self: center;
}
.panel-facts .quote-col {
  display: flex; flex-direction: column; justify-content: center;
  align-self: stretch;
}
.panel-facts .quote-col .label {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--grey-40);
  margin-bottom: 18px;
}
.panel-facts .quote-col blockquote {
  font-size: clamp(22px, 2.2vw, 32px);
  line-height: 1.25;
  letter-spacing: -0.02em;
  font-weight: 400;
  color: var(--black);
  border: none;
  margin: 0;
  padding: 0;
  max-width: 26ch;
}
.panel-facts .quote-col cite {
  display: block;
  margin-top: 24px;
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--grey-40);
  font-style: normal;
}

/* ----- Panel 5: End / Next project ----- */
.panel-end {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--black); color: var(--white);
}
.panel-end .end-left {
  padding: clamp(60px, 8vw, 110px) clamp(40px, 6vw, 90px);
  display: flex; flex-direction: column; justify-content: space-between;
  gap: 32px;
}
.panel-end .end-left .next-tag {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  opacity: 0.6;
}
.panel-end .end-left .next-name {
  font-size: clamp(40px, 5.5vw, 84px);
  letter-spacing: -0.035em;
  line-height: 0.95;
  font-weight: 400;
  margin: 0;
}
.panel-end .end-left .next-loc {
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase;
  opacity: 0.7;
  margin-top: 12px;
}
.panel-end .end-actions {
  display: flex; gap: 12px; flex-wrap: wrap;
}
.panel-end .end-right {
  background-size: cover;
  background-position: center;
  position: relative;
}
.panel-end .end-right::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(0,0,0,0.4) 0%, rgba(0,0,0,0) 30%);
}

/* ----- Progress bar ----- */
.hscroll-progress {
  position: fixed; top: 0; left: 0; right: 0;
  height: 2px; z-index: 60;
  background: rgba(0,0,0,0.05);
  pointer-events: none;
}
.hscroll-progress .bar {
  height: 100%; width: 0%;
  background: var(--black);
  transition: width 80ms linear;
}
body.dark-progress .hscroll-progress {
  background: rgba(255,255,255,0.12);
}
body.dark-progress .hscroll-progress .bar {
  background: var(--white);
}

/* ----- Mobile fallback: linear vertical stack ----- */
@media (max-width: 800px) {
  .hscroll-section {
    height: auto !important;
  }
  .hscroll-sticky {
    position: static;
    height: auto;
    overflow: visible;
  }
  .hscroll-track {
    flex-direction: column;
    width: 100% !important;
    transform: none !important;
  }
  .panel {
    flex: 0 0 auto;
    width: 100%;
    height: auto;
    min-height: 100vh;
  }
  .panel-hero { min-height: 100svh; }
  .panel-text { grid-template-columns: 1fr; gap: 24px; }
  .panel-facts { grid-template-columns: 1fr; gap: 32px; }
  .panel-end {
    grid-template-columns: 1fr;
  }
  .panel-end .end-right { min-height: 50vh; }
  .scroll-hint { display: none; }
  .hscroll-progress { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .hscroll-track { transform: none !important; transition: none !important; }
  .scroll-hint .arrow { animation: none; }
}