/* =========================================================================
   AMEBA — Timber Craft & Conservation
   Design system: "The Drafting Table"
   Danish mid-century modern × architect's technical drawing
   ========================================================================= */

/* ----------------------------------------------------------------- Tokens */
:root {
  /* Palette — warm paper & timber */
  --paper:       #F4EEE3;
  --paper-warm:  #F8F3EA;
  --paper-deep:  #ECE4D4;
  --paper-edge:  #E4DAC7;
  --ink:         #211B12;
  --ink-2:       #3A3123;
  --ink-soft:    #6A5D49;
  --ink-faint:   #95897A;
  --rule:        #CCBFA6;
  --rule-soft:   #DACFB9;
  --ochre:       #B07A30;
  --ochre-deep:  #8F5F20;
  --ochre-soft:  #C79A57;
  --clay:        #A8542B;

  /* Type — editorial serif display / humanist body / technical mono */
  --display: "Fraunces", Georgia, "Times New Roman", serif;
  --body:    "Hanken Grotesk", -apple-system, BlinkMacSystemFont, sans-serif;
  --mono:    "IBM Plex Mono", ui-monospace, "SFMono-Regular", monospace;

  /* Spacing & layout */
  --maxw: 1280px;
  --pad: clamp(1.25rem, 5vw, 4rem);
  --section-y: clamp(4.5rem, 9vw, 9rem);

  /* Motion */
  --ease: cubic-bezier(.22, .61, .36, 1);
  --ease-io: cubic-bezier(.4, 0, .2, 1);
}

/* --------------------------------------------------------------- Reset */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: var(--body);
  font-size: clamp(1rem, 0.95rem + 0.2vw, 1.0625rem);
  font-weight: 400;
  line-height: 1.7;
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    radial-gradient(125% 90% at 72% -12%, var(--paper-warm), transparent 46%),
    radial-gradient(120% 80% at 8% 108%, var(--paper-deep), transparent 50%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

::selection { background: var(--ochre); color: var(--paper-warm); }

:focus-visible {
  outline: 2px solid var(--ochre);
  outline-offset: 3px;
}

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: fixed; top: 0.75rem; left: 0.75rem; z-index: 100;
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.13em;
  text-transform: uppercase;
  background: var(--ink); color: var(--paper-warm);
  padding: 0.8em 1.3em;
  transform: translateY(-250%);
  transition: transform 0.3s var(--ease);
}
.skip-link:focus-visible { transform: none; }

/* --------------------------------------------------- Atmosphere overlays */
.grain {
  position: fixed; inset: 0; z-index: 0;
  pointer-events: none; opacity: 0.05;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Drafting-sheet crop marks */
.sheet { position: fixed; inset: 0; z-index: 6; pointer-events: none; }
.sheet .mark { position: absolute; width: 14px; height: 14px; opacity: 0.55; }
.sheet .tl { top: 18px; left: 18px; border-top: 1px solid var(--ink); border-left: 1px solid var(--ink); }
.sheet .tr { top: 18px; right: 18px; border-top: 1px solid var(--ink); border-right: 1px solid var(--ink); }
.sheet .bl { bottom: 18px; left: 18px; border-bottom: 1px solid var(--ink); border-left: 1px solid var(--ink); }
.sheet .br { bottom: 18px; right: 18px; border-bottom: 1px solid var(--ink); border-right: 1px solid var(--ink); }
@media (max-width: 680px) { .sheet { display: none; } }

/* ------------------------------------------------------------- Typography */
h1, h2 {
  font-family: var(--display); font-weight: 400;
  line-height: 1.08; letter-spacing: -0.018em;
  font-optical-sizing: auto; text-wrap: balance;
}
h3, h4 {
  font-family: var(--display); font-weight: 480;
  line-height: 1.2; letter-spacing: -0.01em;
  text-wrap: balance;
}

.eyebrow {
  font-family: var(--mono); font-size: 0.72rem; font-weight: 500;
  letter-spacing: 0.22em; text-transform: uppercase; color: var(--ink-soft);
  display: inline-flex; align-items: center; gap: 0.75em;
}
.eyebrow .tick { width: 1.7rem; height: 1px; background: var(--ochre); display: inline-block; }

.fig {
  font-family: var(--mono); font-size: 0.72rem; font-weight: 500;
  letter-spacing: 0.22em; text-transform: uppercase; color: var(--ochre-deep);
}

.lead {
  font-size: clamp(1.15rem, 1.02rem + 0.7vw, 1.5rem);
  line-height: 1.5; color: var(--ink-2);
  letter-spacing: -0.005em;
  text-wrap: pretty;
}

.muted { color: var(--ink-soft); }

p + p { margin-top: 1.15em; }

em { font-style: italic; }

/* ----------------------------------------------------------------- Layout */
.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--pad); }
.container.narrow { max-width: 760px; }

main { position: relative; z-index: 1; }

.section { padding-block: var(--section-y); border-top: 1px solid var(--rule); position: relative; }
/* --plain continues the page-head above it: no rule, tighter top */
.section--plain { border-top: none; padding-top: clamp(1rem, 2.5vw, 2rem); }

.section-head {
  display: flex; align-items: baseline; gap: 1.4rem;
  margin-bottom: clamp(1.75rem, 3vw, 2.75rem);
  flex-wrap: wrap;
}

.section-title {
  font-size: clamp(2rem, 1.4rem + 2.8vw, 3.4rem);
  max-width: 18ch;
}
.section-intro { margin-top: 1.4rem; max-width: 48ch; }

/* ------------------------------------------------------------ Reveal anim */
.js [data-reveal] {
  opacity: 0; transform: translateY(16px);
  transition: opacity 0.85s var(--ease), transform 0.85s var(--ease);
  transition-delay: var(--d, 0s);
}
.js [data-reveal].is-in { opacity: 1; transform: none; }

.js [data-reveal-list] > * {
  opacity: 0; transform: translateY(16px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.js [data-reveal-list].is-in > * { opacity: 1; transform: none; }
.js [data-reveal-list].is-in > *:nth-child(1) { transition-delay: 0.04s; }
.js [data-reveal-list].is-in > *:nth-child(2) { transition-delay: 0.12s; }
.js [data-reveal-list].is-in > *:nth-child(3) { transition-delay: 0.20s; }
.js [data-reveal-list].is-in > *:nth-child(4) { transition-delay: 0.28s; }
.js [data-reveal-list].is-in > *:nth-child(5) { transition-delay: 0.36s; }
.js [data-reveal-list].is-in > *:nth-child(6) { transition-delay: 0.44s; }

@media (prefers-reduced-motion: reduce) {
  .js [data-reveal], .js [data-reveal-list] > * { opacity: 1; transform: none; transition: none; }
}

/* ------------------------------------------------------------------ Rings */
.rings { width: 100%; height: 100%; overflow: visible; }
.rings ellipse, .rings circle, .rings path { transition: opacity 0.6s var(--ease); }

@keyframes ring-rotate { to { transform: rotate(360deg); } }
.rings--spin { animation: ring-rotate 140s linear infinite; transform-origin: 56% 44%; }
@media (prefers-reduced-motion: reduce) { .rings--spin { animation: none; } }

/* ------------------------------------------------------------------ Header */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--paper) 78%, transparent);
  -webkit-backdrop-filter: blur(9px); backdrop-filter: blur(9px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.4s var(--ease-io), background 0.4s var(--ease-io);
}
.site-header.scrolled { border-bottom-color: var(--rule); background: color-mix(in srgb, var(--paper) 90%, transparent); }

.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem; min-height: 72px;
}

.brand { display: inline-flex; align-items: center; gap: 0.7rem; }
.brand-logo {
  height: clamp(38px, 4.6vw, 50px); width: auto; display: block;
  transition: opacity 0.3s var(--ease-io);
}
.brand:hover .brand-logo, .brand:focus-visible .brand-logo { opacity: 0.72; }
.footer-brand .brand-logo--footer { height: 58px; width: auto; align-self: flex-start; }

.primary-nav { display: flex; align-items: center; gap: clamp(1.1rem, 2.4vw, 2.2rem); }
.primary-nav a {
  font-family: var(--mono); font-size: 0.76rem; letter-spacing: 0.13em;
  text-transform: uppercase; color: var(--ink-2);
  position: relative; padding-block: 0.4rem;
  transition: color 0.3s var(--ease-io);
}
/* Underline draws in from the left and retracts to the right */
.primary-nav a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 100%;
  background: var(--ochre); transform: scaleX(0); transform-origin: right;
  transition: transform 0.35s var(--ease);
}
.primary-nav a:hover { color: var(--ink); }
.primary-nav a:hover::after,
.primary-nav a:focus-visible::after,
.primary-nav a.is-active::after { transform: scaleX(1); transform-origin: left; }
.primary-nav a.is-active { color: var(--ink); }

.nav-locale {
  font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--ink-soft);
  padding-left: clamp(0.6rem, 2vw, 1.6rem); border-left: 1px solid var(--rule);
}

/* Language switch — a small drafting stamp */
.primary-nav .nav-lang {
  border: 1px solid var(--rule);
  padding: 0.5em 0.85em;
  color: var(--ink-2);
  transition: border-color 0.3s var(--ease-io), color 0.3s var(--ease-io), background 0.3s var(--ease-io);
}
.primary-nav .nav-lang::after { display: none; }
.primary-nav .nav-lang:hover, .primary-nav .nav-lang:focus-visible {
  border-color: var(--ink); color: var(--paper-warm); background: var(--ink);
}

/* Mobile nav toggle */
.nav-toggle { display: none; width: 44px; height: 44px; position: relative; }
.nav-toggle .bar, .nav-toggle .bar::before, .nav-toggle .bar::after {
  content: ""; position: absolute; left: 50%; width: 22px; height: 1.5px;
  background: var(--ink); transform: translateX(-50%);
  transition: transform 0.3s var(--ease), opacity 0.2s, background-color 0.2s var(--ease-io);
}
.nav-toggle .bar { top: 50%; margin-top: -0.75px; }
.nav-toggle .bar::before { top: -7px; }
.nav-toggle .bar::after { top: 7px; }
.nav-toggle[aria-expanded="true"] .bar { background: transparent; }
.nav-toggle[aria-expanded="true"] .bar::before { transform: translateX(-50%) translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .bar::after { transform: translateX(-50%) translateY(-7px) rotate(-45deg); }

/* ------------------------------------------------------------------ Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 0.7em;
  font-family: var(--mono); font-size: 0.78rem; font-weight: 500;
  letter-spacing: 0.13em; text-transform: uppercase;
  padding: 1.05em 1.65em; border: 1px solid var(--ink);
  transition: background 0.4s var(--ease-io), color 0.4s var(--ease-io), border-color 0.4s var(--ease-io), transform 0.15s var(--ease-io);
}
.btn:active { transform: translateY(1px); }
.btn-arrow { transition: transform 0.35s var(--ease); }
.btn-primary { background: var(--ink); color: var(--paper-warm); }
.btn-primary:hover { background: var(--ochre-deep); border-color: var(--ochre-deep); }
.btn-primary:hover .btn-arrow { transform: translateX(5px); }
.btn-ghost { background: transparent; color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--paper-warm); }
.btn-ghost:hover .btn-arrow { transform: translateX(5px); }

/* ------------------------------------------------------------------ Hero */
.hero {
  position: relative; overflow: hidden;
  min-height: clamp(640px, 100vh, 920px);
  min-height: clamp(640px, 100svh, 920px);
  display: flex; align-items: center; justify-content: center;
  padding-top: clamp(6rem, 12vw, 10rem); padding-bottom: clamp(6rem, 12vw, 10rem);
}
.hero-video {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; opacity: 1;
  filter: saturate(0.92) contrast(1.02); z-index: 0;
}
/* Hero content sits inside the same 1280px container as every other
   section, so the left edge of the headline lines up with the page grid. */
.hero-centered {
  position: relative; z-index: 2; width: 100%;
  max-width: var(--maxw); margin-inline: auto;
  display: flex; align-items: center; justify-content: flex-start;
  padding: 0 var(--pad);
}
.hero-content {
  text-align: left; max-width: 760px; width: 100%;
}
.hero-eyebrow { margin-bottom: clamp(1.2rem, 2.5vw, 2rem); }
.hero-title {
  font-size: clamp(2.5rem, 1.6rem + 4.4vw, 5.6rem);
  line-height: 1.05; letter-spacing: -0.022em;
  margin-bottom: 1.8rem; font-weight: 360;
  text-wrap: balance;
}
.hero-sub {
  font-size: clamp(1.05rem, 1rem + 0.5vw, 1.25rem);
  line-height: 1.65; color: var(--ink-2);
  margin-bottom: 2.6rem; max-width: 54ch;
}
.hero-actions {
  display: flex; gap: 1rem; flex-wrap: wrap;
  justify-content: flex-start; align-items: center;
}

/* Scroll cue — a drafting rule that draws itself downward.
   Pinned to the container's left edge, not the viewport's. */
.hero-scroll {
  position: absolute; bottom: 0; z-index: 2;
  left: max(var(--pad), calc(50vw - var(--maxw) / 2 + var(--pad)));
  display: flex; flex-direction: column; align-items: center; gap: 0.9rem;
}
.hero-scroll .word {
  font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.3em;
  text-transform: uppercase; color: var(--ink-soft);
  writing-mode: vertical-rl;
}
.hero-scroll .line {
  width: 1px; height: 62px; background: var(--rule);
  position: relative; overflow: hidden;
}
.hero-scroll .line::after {
  content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  background: var(--ochre); transform: translateY(-100%);
  animation: scroll-cue 3.2s var(--ease) infinite;
}
@keyframes scroll-cue {
  0% { transform: translateY(-100%); }
  45% { transform: translateY(0); }
  75%, 100% { transform: translateY(100%); }
}
@media (prefers-reduced-motion: reduce) { .hero-scroll .line::after { animation: none; } }
@media (max-width: 680px) { .hero-scroll { display: none; } }

/* Small phones: trim the hero's vertical padding so the headline, intro
   and both CTAs fit the first viewport; strengthen the scrim for contrast. */
@media (max-width: 680px) {
  .hero {
    min-height: auto;
    padding-top: 4.5rem; padding-bottom: 4rem;
  }
  .hero-sub { margin-bottom: 2rem; }
}

/* --------------------------------------------------------- Philosophy */
.philosophy-grid {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: clamp(1.5rem, 4vw, 4rem); align-items: start;
}
.philosophy-body p:not(.lead) { margin-top: 1.4rem; color: var(--ink-2); }
/* Closing note sits in the grid's second column, under the lead */
.philosophy-note { grid-column: 2; color: var(--ink-2); }
@media (max-width: 980px) { .philosophy-note { grid-column: auto; } }
.pull-quote {
  font-family: var(--display); font-style: italic; font-weight: 340;
  font-size: clamp(2.6rem, 1.6rem + 4.5vw, 5.5rem); line-height: 1.02;
  letter-spacing: -0.02em; color: var(--ink);
  margin-top: clamp(2.5rem, 5vw, 4.5rem);
  text-indent: -0.42em; /* hang the opening quotation mark */
}
.pull-quote .by {
  display: block; font-family: var(--mono); font-style: normal;
  font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--ink-soft); margin-top: 1.4rem; text-indent: 0;
}

/* ---------------------------------------------------------- Spec table
   Drafting-style credentials list: mono label left, value right,
   ruled rows — same language as the contact details block. */
.meta-list { max-width: 30rem; }
.meta-list li {
  display: flex; justify-content: space-between; align-items: baseline;
  gap: 1.5rem; padding-block: 0.7rem;
  border-top: 1px solid var(--rule);
}
.meta-list li:last-child { border-bottom: 1px solid var(--rule); }
.meta-list li span {
  font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--ink-soft); flex: none;
}
.meta-list li strong { font-weight: 600; font-size: 0.98rem; text-align: right; }

/* -------------------------------------------------------------- Page head */
.page-head { padding-top: clamp(3.5rem, 8vw, 7rem); padding-bottom: clamp(2.5rem, 5vw, 4rem); }
.page-title {
  font-size: clamp(2.6rem, 1.5rem + 4.6vw, 5.4rem); line-height: 1.0;
  letter-spacing: -0.025em; max-width: 18ch; margin-top: 1.3rem;
}
.page-title em { color: var(--ochre); font-style: italic; }
.page-intro { margin-top: 1.8rem; max-width: 52ch; }

/* ---------------------------------------------------------------- Services */
/* Full-width service bands — faded footage with the text laid over it */
.service-band {
  position: relative; overflow: hidden;
  display: flex; align-items: center;
  min-height: clamp(400px, 56vh, 620px);
  background: var(--paper); border-top: 1px solid var(--rule);
}
.service-band:last-child { border-bottom: 1px solid var(--rule); }
.service-band > video {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; opacity: 0.5;
  filter: saturate(0.9) contrast(1.02); z-index: 0;
  transition: opacity 0.7s var(--ease);
}
/* paper veil: left near-opaque (video barely visible — text sits here),
   right almost clear (video most visible). Two stacked gradients that
   cross-fade by opacity — background-image itself cannot animate. */
.service-band::after {
  content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: linear-gradient(90deg, var(--paper) 0%, rgba(244, 238, 227, 0.93) 26%, rgba(244, 238, 227, 0.45) 66%, rgba(244, 238, 227, 0.06) 100%);
  opacity: 1; transition: opacity 0.7s var(--ease);
}
.service-band::before {
  content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: linear-gradient(90deg, rgba(244, 238, 227, 0.9) 0%, rgba(244, 238, 227, 0.6) 36%, rgba(244, 238, 227, 0.14) 70%, transparent 100%);
  opacity: 0; transition: opacity 0.7s var(--ease);
}
.service-band .container { position: relative; z-index: 2; }
.service-text { max-width: 42ch; }
.service-title { font-size: clamp(2rem, 1.4rem + 2.4vw, 3.2rem); letter-spacing: -0.02em; }
.service-desc {
  color: var(--ink-2); max-width: 40ch;
  margin-top: 0; max-height: 0; opacity: 0; transform: translateY(8px);
  overflow: hidden; pointer-events: none;
  transition: opacity 0.5s var(--ease), max-height 0.65s var(--ease-io),
    transform 0.5s var(--ease), margin-top 0.5s var(--ease);
}
/* hover or keyboard focus — reveal the description and lift the video */
.service-band:hover > video,
.service-band:focus-within > video,
.service-band:focus-visible > video { opacity: 0.92; }
.service-band:hover::after,
.service-band:focus-within::after,
.service-band:focus-visible::after { opacity: 0; }
.service-band:hover::before,
.service-band:focus-within::before,
.service-band:focus-visible::before { opacity: 1; }
.service-band:hover .service-desc,
.service-band:focus-within .service-desc,
.service-band:focus-visible .service-desc {
  opacity: 1; max-height: 14rem; transform: none; margin-top: 1.1rem;
}
/* touch devices: no hover, so always show the description */
@media (hover: none) {
  .service-band > video { opacity: 0.72; }
  .service-desc { opacity: 1; max-height: none; transform: none; margin-top: 1.1rem; overflow: visible; }
}

/* --------------------------------------------------- Ambient footage
   Pure, chrome-less craft footage used as atmosphere — no captions,
   no labels. The work simply happens in the background. */

/* Fade each clip in once its first frame is decoded — no black flash */
video[data-ambient] { transition: opacity 0.7s var(--ease); }
.js video[data-ambient]:not(.is-loaded) { opacity: 0; }

/* Chrome-less footage tile (mosaic + services) */
.clip {
  position: relative; margin: 0; overflow: hidden;
  aspect-ratio: 16 / 9; background: var(--paper-deep);
}
.clip video {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; display: block;
  filter: saturate(0.94) contrast(1.02);
  transition: transform 1.2s var(--ease);
}
.clip:hover video { transform: scale(1.045); }
.clip::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  box-shadow: inset 0 0 0 1px rgba(33, 27, 18, 0.07);
  background: linear-gradient(0deg, rgba(33, 27, 18, 0.05), transparent 45%);
}

/* Workshop mosaic — video + three before/after comparisons, one row */
.gallery {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: clamp(0.6rem, 1.4vw, 1.1rem); margin-top: clamp(2rem, 4vw, 3.2rem);
}
@media (max-width: 980px) { .gallery { grid-template-columns: repeat(2, 1fr); } }

/* ------------------------------------------------- Before / after slider
   Two aligned photographs; the drafting rule between them follows the
   pointer (or arrow keys — the invisible range input carries focus). */
.ba { cursor: ew-resize; }
.ba .ba-img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; display: block;
}
.ba .ba-img--top { clip-path: inset(0 calc(100% - var(--ba, 50%)) 0 0); }
.ba:hover img { transform: none; } /* no zoom — the wipe is the interaction */
.ba-divider {
  position: absolute; top: 0; bottom: 0; left: var(--ba, 50%); width: 1px;
  background: var(--ink); opacity: 0.75; z-index: 2; pointer-events: none;
  transform: translateX(-0.5px);
}
.ba-knob {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 34px; height: 34px; border-radius: 50%;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px);
  border: 1px solid var(--ink);
  display: grid; place-items: center;
}
.ba-knob::before {
  content: "\2194"; /* ↔ */
  font-family: var(--mono); font-size: 0.85rem; color: var(--ink); line-height: 1;
}
.ba-range {
  position: absolute; inset: 0; z-index: 3;
  width: 100%; height: 100%; margin: 0; opacity: 0;
  cursor: ew-resize; -webkit-appearance: none; appearance: none;
}
.ba:focus-within { outline: 2px solid var(--ochre); outline-offset: 3px; }

/* ------------------------------------------------------------------- About */
.about-grid {
  display: block;
}
.about-intro .meta-list { margin-top: clamp(2rem, 4vw, 3rem); }
.about-portrait { margin: 0; }

/* Fixed atmospheric background video for the About page — most visible at the
   top, faded out toward the bottom; sits behind the (transparent) content and
   is released/hidden at the closing CTA via JS. */
.about-bg {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  opacity: 0.5; transition: opacity 0.6s var(--ease);
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, 0.92) 26%, rgba(0, 0, 0, 0.4) 62%, transparent 88%);
  mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, 0.92) 26%, rgba(0, 0, 0, 0.4) 62%, transparent 88%);
}
.about-bg video { width: 100%; height: 100%; object-fit: cover; filter: saturate(0.92) contrast(1.02); }
.about-bg.is-hidden { opacity: 0; }

/* Homepage fixed background video — same clip as About, shown only across the
   Philosophy + About range (toggled by JS), released before Services. */
.home-bg {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  opacity: 0; transition: opacity 0.7s var(--ease);
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, 0.92) 26%, rgba(0, 0, 0, 0.4) 62%, transparent 88%);
  mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, 0.92) 26%, rgba(0, 0, 0, 0.4) 62%, transparent 88%);
}
.home-bg video { width: 100%; height: 100%; object-fit: cover; filter: saturate(0.92) contrast(1.02); }
.home-bg.is-on { opacity: 0.5; }

/* Still images inside .clip frames (e.g. Selected Work) */
.clip img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; display: block;
  transition: transform 1.2s var(--ease);
}
.clip:hover img { transform: scale(1.045); }

/* The about body continues the page-head above it — no dividing rule,
   and a modest gap instead of a full section break. */
.about-body-section { border-top: none; padding-top: clamp(1rem, 2.5vw, 2rem); }
.about-body-section .lead { margin-bottom: 1.6rem; }
.about-body-section p:not(.lead) { margin-top: 1.35rem; color: var(--ink-2); }

.approach { margin-top: clamp(3rem, 6vw, 5rem); border-top: 1px solid var(--rule); padding-top: clamp(2rem, 4vw, 3rem); }
.approach-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; margin-top: 2rem; }
.approach-item { border-top: 2px solid var(--ink); padding-top: 1rem; }
.approach-item .n { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.18em; color: var(--ochre-deep); text-transform: uppercase; }
.approach-item h3 { font-size: 1.25rem; margin-top: 0.6rem; }
.approach-item p { font-size: 0.92rem; color: var(--ink-soft); margin-top: 0.5rem; }

/* ----------------------------------------------------------------- Contact */
.contact-grid {
  display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(2.5rem, 6vw, 6rem); align-items: start;
}
.contact-h { font-size: 1.5rem; margin-bottom: 1.8rem; }
.contact-details dl > div { padding: 1.1rem 0; border-top: 1px solid var(--rule); }
.contact-details dl > div:last-of-type { border-bottom: 1px solid var(--rule); }
.contact-details dt { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--ink-soft); }
.contact-details dd { font-size: 1.1rem; margin-top: 0.45rem; }
.contact-details dd a { border-bottom: 1px solid var(--rule); transition: border-color 0.3s, color 0.3s; }
.contact-details dd a:hover { color: var(--ochre-deep); border-color: var(--ochre-deep); }
.contact-rings { width: clamp(150px, 18vw, 230px); aspect-ratio: 1; margin-top: 3rem; opacity: 0.9; }

.contact-form { display: flex; flex-direction: column; gap: 1.6rem; }
.field { display: flex; flex-direction: column; gap: 0.55rem; }
.field label {
  font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--ink-soft);
  transition: color 0.3s var(--ease-io);
}
.field:focus-within label { color: var(--ink); }
.field input, .field textarea {
  background: color-mix(in srgb, var(--paper-warm) 60%, transparent);
  border: 1px solid var(--rule); padding: 0.85rem 1rem;
  font-size: 1rem; color: var(--ink); border-radius: 0;
  transition: border-color 0.3s var(--ease-io), background 0.3s, box-shadow 0.3s var(--ease-io);
  resize: vertical;
}
.field input:focus, .field textarea:focus {
  outline: none; border-color: var(--ink); background: var(--paper-warm);
  box-shadow: 0 0 0 1px var(--ink);
}
.field input::placeholder, .field textarea::placeholder { color: var(--ink-soft); opacity: 0.55; }
.contact-form .btn { align-self: flex-start; margin-top: 0.3rem; }
.form-note { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.06em; color: var(--ink-soft); }
.form-success {
  font-family: var(--mono); font-size: 0.82rem; letter-spacing: 0.04em;
  color: var(--ink); padding: 1rem 1.2rem; border: 1px solid var(--ochre);
  background: color-mix(in srgb, var(--ochre-soft) 18%, transparent);
  opacity: 0; transform: translateY(6px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}
.form-success.is-in { opacity: 1; transform: none; }
.field-error { border-color: var(--clay) !important; }
.field-msg {
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.06em;
  color: var(--clay);
}
.field-msg[hidden] { display: none; }

/* ---------------------------------------------------------------- CTA strip */
.cta-strip { position: relative; overflow: hidden; border-top: 1px solid var(--rule); background: var(--paper-deep); }
.cta-inner { padding-block: clamp(4rem, 8vw, 7rem); position: relative; z-index: 1; text-align: center; }
.cta-inner h2 { font-size: clamp(2.1rem, 1.4rem + 3vw, 3.6rem); max-width: 20ch; margin: 1.2rem auto 0; }
.cta-sub { max-width: 52ch; margin: 1.4rem auto 2.4rem; color: var(--ink-2); }
.cta-inner .btn { margin-inline: auto; }
.cta-rings {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: min(760px, 120%); aspect-ratio: 1; opacity: 0.16; z-index: 0; pointer-events: none;
}

/* ------------------------------------------------------------------ Footer */
.site-footer { border-top: 1px solid var(--ink); background: var(--paper-edge); position: relative; z-index: 1; }
.footer-grid {
  display: grid; grid-template-columns: 1.6fr 1fr 1.2fr 1fr; gap: 2.5rem;
  padding-block: clamp(3rem, 6vw, 5rem);
}
.footer-brand { display: flex; flex-direction: column; gap: 1.2rem; max-width: 34ch; }
.footer-tag { font-size: 0.95rem; color: var(--ink-soft); line-height: 1.55; }
.site-footer h4 { font-family: var(--mono); font-size: 0.66rem; font-weight: 500; letter-spacing: 0.2em; text-transform: uppercase; color: var(--ink-soft); margin-bottom: 1.1rem; }
.footer-col a, .footer-col p, .footer-col li { font-size: 0.92rem; }
.footer-col ul { display: flex; flex-direction: column; gap: 0.7rem; }
.footer-col a { transition: color 0.3s; }
.footer-col a:hover, .footer-col a:focus-visible { color: var(--ochre-deep); }
.footer-col .stack { display: flex; flex-direction: column; gap: 0.7rem; }

.footer-base {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  padding-block: 1.6rem; border-top: 1px solid var(--rule);
  padding-right: 9rem; /* keep clear of the fixed motion toggle */
  font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-soft);
}

/* ------------------------------------------------ Grouped Collaborations
   Four groups — a balanced 2×2 on desktop rather than a 3+1 orphan row. */
.collab-groups {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(2.5rem, 5vw, 4rem) clamp(2rem, 4vw, 3rem);
  margin-top: clamp(2rem, 4vw, 3rem);
}
@media (max-width: 620px) { .collab-groups { grid-template-columns: 1fr; } }

.collab-group-title {
  font-size: clamp(1.3rem, 1.1rem + 0.8vw, 1.65rem); font-weight: 430;
  color: var(--ink);
  padding-top: 1.1rem; margin-bottom: 1.4rem;
  border-top: 1px solid var(--rule);
}

/* Client names — a quiet ruled register, no imagery */
.collab-names li {
  font-size: 0.98rem; color: var(--ink-2);
  padding-block: 0.6rem;
  border-top: 1px solid var(--rule-soft);
  transition: color 0.3s var(--ease-io), padding-left 0.3s var(--ease);
}
.collab-names li:hover { color: var(--ink); padding-left: 0.4rem; }

/* ------------------------------------------------------------- Responsive */
/* iOS/Android: fixed background-attachment is unsupported — fall back */
@media (max-width: 1024px) {
  body { background-attachment: scroll; }
}

@media (max-width: 980px) {
  .philosophy-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; align-items: start; }
  .about-portrait { margin-top: 1.5rem; }
  .contact-grid { grid-template-columns: 1fr; }
  .approach-grid { grid-template-columns: repeat(2, 1fr); gap: 1.5rem 1.25rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2.25rem; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .header-inner { min-height: 62px; }
  html { scroll-padding-top: 5rem; }
  .service-band { min-height: clamp(360px, 72vh, 520px); }
  .service-band::after { background: linear-gradient(90deg, rgba(244, 238, 227, 0.74) 0%, rgba(244, 238, 227, 0.55) 72%, rgba(244, 238, 227, 0.38) 100%); }
  .primary-nav {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: flex-start; gap: 0;
    background: var(--paper-warm); border-bottom: 1px solid var(--rule);
    padding: 0.5rem var(--pad) 1.5rem;
    clip-path: inset(0 0 100% 0); opacity: 0;
    visibility: hidden; /* keep closed-menu links out of the tab order */
    transition: clip-path 0.45s var(--ease), opacity 0.3s, visibility 0s 0.45s;
  }
  .primary-nav.open { clip-path: inset(0 0 0 0); opacity: 1; visibility: visible; transition-delay: 0s; }
  .primary-nav a { width: 100%; padding: 0.9rem 0; border-bottom: 1px solid var(--rule-soft); font-size: 0.95rem; }
  .primary-nav a::after { display: none; }
  .primary-nav .nav-lang {
    width: auto; margin-top: 1.1rem; font-size: 0.8rem;
    border: 1px solid var(--rule); border-bottom: 1px solid var(--rule);
    padding: 0.5em 0.9em;
  }
  .nav-locale { border-left: none; padding-left: 0; padding-top: 1rem; }
}

@media (max-width: 620px) {
  .gallery { grid-template-columns: 1fr; }
  .approach-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-base { flex-direction: column; align-items: flex-start; }
}

/* ------------------------------------------------------- Motion toggle
   WCAG 2.2.2 — a discreet drafting-style control that halts all ambient
   footage. Fixed above the bottom-left crop mark. */
.motion-toggle {
  position: fixed; bottom: 16px; right: 44px; z-index: 30;
  font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--ink-soft);
  padding: 0.5em 0.8em;
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  border: 1px solid var(--rule);
  transition: color 0.3s var(--ease-io), border-color 0.3s var(--ease-io);
}
.motion-toggle:hover, .motion-toggle:focus-visible { color: var(--ink); border-color: var(--ink-soft); }
.motion-toggle .state::before { content: "on"; }
.motion-toggle[aria-pressed="true"] .state::before { content: "off"; }
:lang(da) .motion-toggle .state::before { content: "til"; }
:lang(da) .motion-toggle[aria-pressed="true"] .state::before { content: "fra"; }
@media (max-width: 680px) { .motion-toggle { right: 16px; bottom: 12px; } }