/* =========================================================================
   Citric Intelligence — wireframe stylesheet
   Sections follow the order of index.html.
   ========================================================================= */

/* ---------------------------------------------------------------- tokens */
:root {
  /* colour */
  --ink:        #12110F;
  --ink-soft:   #3A3733;
  --ink-mute:   #6E6963;
  --line:       #DED8CD;
  --paper:      #F7F4EE;
  --paper-2:    #EFEBE2;
  --citrus:     #E85D14;
  --citrus-lit: #FF7A2E;
  --zest:       #A8C63C;

  /* current surface — flipped by .section--dark */
  --bg:      var(--paper);
  --fg:      var(--ink);
  --fg-soft: var(--ink-soft);
  --fg-mute: var(--ink-mute);
  --rule:    var(--line);
  --accent:  var(--citrus);

  /* type */
  --sans:  "Inter Tight", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --serif: "Instrument Serif", Georgia, "Times New Roman", serif;
  --mono:  "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --t-hero: clamp(2.75rem, 7.2vw, 6.5rem);
  --t-h2:   clamp(2.1rem, 4.6vw, 4rem);
  --t-h3:   clamp(1.25rem, 1.9vw, 1.6rem);
  --t-lede: clamp(1.075rem, 1.45vw, 1.35rem);
  --t-body: clamp(1rem, 1.1vw, 1.0625rem);
  --t-mono: 0.7rem;

  /* layout */
  --shell: 1280px;
  --gut:   clamp(1.25rem, 4vw, 3.5rem);
  --sect:  clamp(5rem, 11vw, 10rem);
  --radius: 2px;

  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ------------------------------------------------------------ base reset */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: var(--t-body);
  line-height: 1.62;
  font-weight: 400;
  letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; height: auto; }
button   { font: inherit; color: inherit; }

a {
  color: inherit;
  text-decoration-color: color-mix(in srgb, currentColor 30%, transparent);
  text-underline-offset: 0.25em;
  transition: color .25s var(--ease), text-decoration-color .25s var(--ease);
}
a:hover { color: var(--accent); text-decoration-color: currentColor; }

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

::selection { background: var(--citrus); color: #fff; }

.skip-link {
  position: fixed; top: 0; left: 50%;
  transform: translate(-50%, -110%);
  z-index: 200;
  background: var(--ink); color: var(--paper);
  padding: .75rem 1.25rem; font-size: .85rem;
  transition: transform .2s var(--ease);
}
.skip-link:focus { transform: translate(-50%, 0); }

/* Very light film so flat colour fields do not read as plastic. */
.grain {
  position: fixed; inset: 0; z-index: 150; pointer-events: none;
  opacity: .035; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ----------------------------------------------------------- primitives */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gut);
}

.section {
  padding-block: var(--sect);
  background: var(--bg);
  color: var(--fg);
  position: relative;
}

.section--dark {
  --bg:      var(--ink);
  --fg:      var(--paper);
  --fg-soft: #C9C3B9;
  --fg-mute: #8B857C;
  --rule:    #2C2925;
  --accent:  var(--citrus-lit);
}

.section__head { max-width: 46ch; margin-bottom: clamp(3rem, 6vw, 5.5rem); }
.section__intro { color: var(--fg-soft); font-size: var(--t-lede); margin: 1.5rem 0 0; }

.eyebrow {
  font-family: var(--mono);
  font-size: var(--t-mono);
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--fg-mute);
  margin: 0 0 1.5rem;
}

.h2 {
  font-size: var(--t-h2);
  line-height: 1.02;
  letter-spacing: -0.035em;
  font-weight: 500;
  margin: 0;
  text-wrap: balance;
}

.h2 em, .hero__title em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.015em;
  color: var(--accent);
}

/* Keeps the accented phrase on one line so it never orphans its last word.
   Only safe while that phrase stays short — check it if you change a headline. */
.hero__title em { white-space: nowrap; }

.lede { font-size: var(--t-lede); color: var(--fg-soft); }

/* buttons */
.btn {
  --btn-pad: .95rem 1.75rem;
  display: inline-flex; align-items: center; gap: .6rem;
  padding: var(--btn-pad);
  font-size: .9rem; font-weight: 500; letter-spacing: -0.01em;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 100px;
  cursor: pointer;
  transition: background .3s var(--ease), color .3s var(--ease),
              border-color .3s var(--ease), transform .3s var(--ease);
}
.btn--sm    { --btn-pad: .55rem 1.15rem; font-size: .82rem; }
.btn--wide  { width: 100%; justify-content: center; }

.btn--solid {
  background: var(--accent); color: #fff; border-color: var(--accent);
}
.btn--solid:hover {
  background: var(--ink); border-color: var(--ink); color: var(--paper);
  transform: translateY(-2px);
}
.section--dark .btn--solid:hover { background: var(--paper); color: var(--ink); border-color: var(--paper); }

.btn--ghost { border-color: var(--rule); color: var(--fg); }
.btn--ghost:hover { border-color: var(--fg); transform: translateY(-2px); }

/* placeholder chip on every stand-in image */
figure[data-placeholder] { position: relative; margin: 0; overflow: hidden; }
figure[data-placeholder]::after {
  content: attr(data-placeholder);
  position: absolute; top: .75rem; left: .75rem;
  font-family: var(--mono); font-size: .58rem; letter-spacing: .14em;
  text-transform: uppercase;
  padding: .3rem .55rem;
  background: color-mix(in srgb, var(--citrus) 90%, transparent);
  color: #fff;
  pointer-events: none;
}

/* Reveal-on-scroll. Scoped to .js so that without JavaScript — or if main.js
   fails to load — every section is simply visible instead of blank. */
.js .reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
}
.js .reveal.is-in { opacity: 1; transform: none; }

/* ================================================================ header */
.site-header {
  position: fixed; inset: 0 0 auto; z-index: 100;
  transition: background .35s var(--ease), border-color .35s var(--ease),
              transform .35s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.is-stuck {
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--line);
}
.site-header.is-hidden { transform: translateY(-102%); }

.header__inner {
  display: flex; align-items: center; gap: 2rem;
  min-height: 4.75rem;
}

.brand {
  display: inline-flex; align-items: center; gap: .6rem;
  text-decoration: none; font-weight: 600; letter-spacing: -0.03em;
  font-size: 1.0625rem; white-space: nowrap;
}
.brand:hover { color: inherit; }
.brand__mark { width: 30px; height: 30px; }
.brand__thin { font-weight: 400; color: var(--ink-soft); }

.nav {
  display: flex; gap: clamp(1rem, 2.2vw, 2rem);
  margin-inline: auto;
  font-size: .9rem;
}
.nav a { text-decoration: none; color: var(--ink-soft); }
.nav a:hover, .nav a.is-current { color: var(--ink); }
.nav a.is-current { text-decoration: underline; text-decoration-color: var(--citrus); text-decoration-thickness: 2px; }

.header__actions { display: flex; align-items: center; gap: 1rem; }

.lang { display: inline-flex; align-items: center; gap: .3rem; font-family: var(--mono); font-size: .72rem; }
.lang__btn {
  background: none; border: 0; padding: .2rem .1rem; cursor: pointer;
  color: var(--ink-mute); letter-spacing: .06em;
  transition: color .2s var(--ease);
}
.lang__btn:hover { color: var(--ink); }
.lang__btn.is-active { color: var(--citrus); font-weight: 500; }
.lang__sep { color: var(--line); }

.burger {
  display: none;
  width: 40px; height: 40px; border: 1px solid var(--line);
  border-radius: 100px; background: none; cursor: pointer;
  position: relative;
}
.burger span {
  position: absolute; left: 50%; width: 15px; height: 1.5px;
  background: var(--ink); transform: translateX(-50%);
  transition: transform .3s var(--ease), opacity .3s var(--ease);
}
.burger span:nth-child(1) { top: 16px; }
.burger span:nth-child(2) { top: 22px; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateX(-50%) translateY(3px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { transform: translateX(-50%) translateY(-3px) rotate(-45deg); }

/* ================================================================== hero */
.hero {
  position: relative;
  padding-block: clamp(8rem, 15vw, 12rem) clamp(4rem, 8vw, 7rem);
  overflow: hidden;
}
.hero::before {
  /* soft citrus wash behind the headline */
  content: ""; position: absolute; z-index: -1;
  top: -18vw; right: -12vw; width: 62vw; aspect-ratio: 1;
  background: radial-gradient(circle, color-mix(in srgb, var(--citrus) 22%, transparent) 0%, transparent 62%);
  pointer-events: none;
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  gap: clamp(2.5rem, 5vw, 5rem);
  align-items: end;
}

.hero__title {
  font-size: var(--t-hero);
  line-height: .96;
  letter-spacing: -0.045em;
  font-weight: 500;
  margin: 0 0 1.75rem;
  text-wrap: balance;
}

.hero__lede { font-size: var(--t-lede); color: var(--ink-soft); max-width: 44ch; margin: 0 0 2.25rem; }

.hero__actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-bottom: 2.75rem; }

.hero__meta {
  display: flex; flex-wrap: wrap; gap: .5rem 1.5rem;
  list-style: none; margin: 0; padding: 0;
  font-family: var(--mono); font-size: var(--t-mono);
  letter-spacing: .12em; text-transform: uppercase; color: var(--ink-mute);
}
.hero__meta li { display: flex; align-items: center; gap: .5rem; }
.hero__meta li::before { content: ""; width: 5px; height: 5px; background: var(--citrus); border-radius: 50%; }

.hero__media {
  aspect-ratio: 4 / 5;
  background: var(--paper-2);
}
.hero__media img { width: 100%; height: 100%; object-fit: cover; }

.hero__scroll {
  position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: .6rem;
  font-family: var(--mono); font-size: .6rem; letter-spacing: .2em;
  text-transform: uppercase; color: var(--ink-mute);
}
.hero__scroll svg { animation: nudge 2.4s var(--ease) infinite; }
@keyframes nudge { 0%,100% { transform: translateY(0); opacity: .5 } 50% { transform: translateY(6px); opacity: 1 } }

/* =============================================================== clients */
.clients {
  padding-block: clamp(2.5rem, 5vw, 4rem);
  border-block: 1px solid var(--line);
  overflow: hidden;
}
.clients__label { text-align: center; margin-bottom: 2rem; }

.marquee {
  display: flex; overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee__track {
  display: flex; align-items: center; gap: clamp(2.5rem, 6vw, 5rem);
  padding-right: clamp(2.5rem, 6vw, 5rem);
  flex-shrink: 0;
  animation: slide 42s linear infinite;
}
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__track img {
  width: 170px; flex-shrink: 0;
  color: var(--ink);
  opacity: .38;
  filter: grayscale(1);
  transition: opacity .3s var(--ease);
}
.marquee__track img:hover { opacity: .8; }
@keyframes slide { to { transform: translateX(-100%); } }

/* ================================================================= stats */
/* Trimmed at the bottom: the next section already brings its own top padding. */
.stats { padding-block: clamp(4rem, 8vw, 7rem) clamp(2rem, 4vw, 3rem); }
.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(1.5rem, 3vw, 3rem);
}
.stat { border-top: 1px solid var(--line); padding-top: 1.5rem; }
.stat__num {
  display: block;
  font-size: clamp(2.5rem, 4.4vw, 3.75rem);
  line-height: 1; letter-spacing: -0.05em; font-weight: 500;
  margin-bottom: .85rem;
  font-variant-numeric: tabular-nums;
}
.stat:nth-child(odd) .stat__num  { color: var(--citrus); }
.stat__label { display: block; font-size: .875rem; color: var(--ink-mute); line-height: 1.5; text-wrap: pretty; }

/* ================================================================ thesis */
.thesis__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: clamp(3rem, 7vw, 7rem);
  align-items: start;
}
.thesis__sticky { position: sticky; top: 7.5rem; }
.thesis__media { margin-top: clamp(2.5rem, 5vw, 4.5rem); aspect-ratio: 16 / 10; background: var(--paper-2); }
.thesis__media img { width: 100%; height: 100%; object-fit: cover; }

.thesis__body > p { margin: 0 0 1.5rem; max-width: 58ch; color: var(--ink-soft); }
.thesis__body > p.lede { color: var(--ink); }

.ticks { list-style: none; margin: clamp(2.5rem, 5vw, 3.5rem) 0 0; padding: 0; display: grid; gap: 1.25rem; }
.ticks li {
  position: relative; padding-left: 2.25rem;
  color: var(--ink-soft); font-size: .95rem; line-height: 1.6;
  border-top: 1px solid var(--line); padding-top: 1.25rem;
}
.ticks li strong { color: var(--ink); font-weight: 600; }
/* A small citrus wedge, echoing the brand mark. */
.ticks li::before {
  content: ""; position: absolute; left: 0; top: 1.7rem;
  width: 1.1rem; height: .55rem;
  background: var(--citrus);
  border-radius: 1.1rem 1.1rem 0 0;
}

/* ============================================================== services */
.cards {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
.card {
  background: var(--bg);
  padding: clamp(1.75rem, 3vw, 2.75rem);
  display: flex; flex-direction: column; gap: 1.15rem;
  position: relative;
  transition: background .4s var(--ease);
}
.card::after {
  content: ""; position: absolute; inset: auto 0 0 0; height: 2px;
  background: var(--accent);
  transform: scaleX(0); transform-origin: left;
  transition: transform .5s var(--ease);
}
.card:hover { background: color-mix(in srgb, var(--accent) 7%, var(--bg)); }
.card:hover::after { transform: scaleX(1); }

.card__idx {
  font-family: var(--mono); font-size: var(--t-mono);
  letter-spacing: .18em; color: var(--accent);
}
.card__title { font-size: var(--t-h3); font-weight: 500; letter-spacing: -0.025em; margin: 0; line-height: 1.15; }

.card__meta {
  display: grid; grid-template-columns: auto 1fr; gap: .35rem 1rem;
  margin: 0; font-size: .8rem;
  padding-block: 1rem; border-block: 1px solid var(--rule);
}
.card__meta dt { font-family: var(--mono); font-size: .62rem; letter-spacing: .14em; text-transform: uppercase; color: var(--fg-mute); padding-top: .18rem; }
.card__meta dd { margin: 0; color: var(--fg-soft); }

.card__text { margin: 0; color: var(--fg-soft); font-size: .95rem; flex: 1; }
.card__price { margin: 0; font-size: .8rem; color: var(--fg-mute); font-family: var(--mono); letter-spacing: .04em; }
.card__price b { font-family: var(--sans); font-size: 1.15rem; font-weight: 500; color: var(--fg); letter-spacing: -0.02em; margin-left: .35rem; }

.services__note {
  margin: 2rem 0 0; font-size: .82rem; color: var(--fg-mute); max-width: 60ch;
}

/* ================================================================ method */
.steps { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.step {
  display: grid;
  grid-template-columns: clamp(4rem, 12vw, 10rem) minmax(0, 1fr);
  gap: clamp(1rem, 4vw, 3rem);
  padding-block: clamp(2rem, 3.5vw, 3rem);
  border-bottom: 1px solid var(--line);
  transition: padding-left .4s var(--ease);
}
.step:hover { padding-left: clamp(0rem, 1.5vw, 1.5rem); }
.step__num {
  font-family: var(--mono); font-size: .78rem; letter-spacing: .16em;
  color: var(--citrus); padding-top: .45rem;
}
.step__body { max-width: 62ch; }
.step__body h3 {
  font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 500;
  letter-spacing: -0.035em; margin: 0 0 .65rem; line-height: 1.1;
}
.step__body p { margin: 0; color: var(--ink-soft); }

/* ================================================================== work */
.work__grid {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1.5rem, 3vw, 2.5rem);
}
.case { display: flex; flex-direction: column; }
.case__media {
  aspect-ratio: 4 / 3; background: var(--paper-2); margin-bottom: 1.5rem;
}
.case__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease); }
.case:hover .case__media img { transform: scale(1.04); }

.case__tag {
  font-family: var(--mono); font-size: var(--t-mono); letter-spacing: .14em;
  text-transform: uppercase; color: var(--ink-mute); margin: 0 0 .75rem;
}
.case__title { font-size: var(--t-h3); font-weight: 500; letter-spacing: -0.025em; line-height: 1.2; margin: 0 0 .85rem; }
.case__text { margin: 0 0 1.25rem; color: var(--ink-soft); font-size: .95rem; flex: 1; }
.case__result {
  margin: 0; padding-top: 1rem; border-top: 1px solid var(--line);
  font-family: var(--mono); font-size: .68rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--ink-mute);
}
.case__result em { color: var(--citrus); font-style: normal; }

/* ================================================================== team */
.team__grid {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(2rem, 5vw, 4.5rem);
}
.person__media {
  aspect-ratio: 4 / 5; background: #1E1B18; margin-bottom: 1.75rem;
  max-height: 34rem;
}
.person__media img { width: 100%; height: 100%; object-fit: cover; }
.person__name { font-size: clamp(1.5rem, 2.6vw, 2rem); font-weight: 500; letter-spacing: -0.035em; margin: 0 0 .35rem; }
.person__role {
  font-family: var(--mono); font-size: var(--t-mono); letter-spacing: .14em;
  text-transform: uppercase; color: var(--accent); margin: 0 0 1.25rem;
}
.person__bio { margin: 0 0 1.5rem; color: var(--fg-soft); max-width: 46ch; }
.person__tags { list-style: none; display: flex; flex-wrap: wrap; gap: .4rem; margin: 0; padding: 0; }
.person__tags li {
  font-family: var(--mono); font-size: .65rem; letter-spacing: .08em;
  padding: .35rem .7rem; border: 1px solid var(--rule); border-radius: 100px;
  color: var(--fg-mute);
}

/* ================================================================ quotes */
.quotes { padding-block: clamp(4rem, 8vw, 8rem); }
.quotes__grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(2rem, 5vw, 4rem); }
.quote { margin: 0; border-top: 2px solid var(--ink); padding-top: 2rem; }
.quote blockquote {
  margin: 0 0 1.75rem;
  font-family: var(--serif); font-style: italic;
  font-size: clamp(1.4rem, 2.6vw, 2rem); line-height: 1.25;
  letter-spacing: -0.02em;
  text-wrap: pretty;
}
.quote blockquote::before { content: "“"; color: var(--citrus); }
.quote blockquote::after  { content: "”"; color: var(--citrus); }
.quote figcaption { display: flex; flex-direction: column; gap: .2rem; }
.quote__name { font-weight: 600; font-size: .95rem; }
.quote__role { font-family: var(--mono); font-size: var(--t-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-mute); }

/* =============================================================== contact */
.contact { border-top: 1px solid var(--line); }
.contact__grid {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: clamp(3rem, 7vw, 6rem);
  align-items: start;
}
.contact__intro .lede { max-width: 42ch; margin: 1.75rem 0 0; }

.contact__direct { list-style: none; margin: 2.5rem 0 0; padding: 0; display: grid; gap: 1rem; }
.contact__direct li { display: grid; grid-template-columns: 5.5rem 1fr; gap: 1rem; align-items: baseline; border-top: 1px solid var(--line); padding-top: 1rem; }
.contact__k { font-family: var(--mono); font-size: .62rem; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-mute); }
.contact__direct a { text-decoration: none; font-weight: 500; }

/* form */
.form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; }
.field { display: flex; flex-direction: column; gap: .5rem; }
.field--full { grid-column: 1 / -1; }
.field label { font-family: var(--mono); font-size: .62rem; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-mute); }
.field input, .field select, .field textarea {
  font: inherit; font-size: .95rem;
  padding: .85rem 1rem;
  background: var(--paper-2);
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: var(--ink);
  transition: border-color .25s var(--ease), background .25s var(--ease);
}
.field textarea { resize: vertical; min-height: 8rem; }
.field input:hover, .field select:hover, .field textarea:hover { border-color: var(--line); }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--citrus); background: var(--paper);
}
.field input[aria-invalid="true"], .field textarea[aria-invalid="true"] { border-color: #C0392B; }

.field--check { flex-direction: row; align-items: flex-start; gap: .75rem; }
.field--check input { margin-top: .15rem; accent-color: var(--citrus); width: 1rem; height: 1rem; padding: 0; }
.field--check label { text-transform: none; letter-spacing: 0; font-family: var(--sans); font-size: .85rem; color: var(--ink-soft); line-height: 1.5; }

.form__status { margin: .9rem 0 0; font-size: .85rem; min-height: 1.2em; color: var(--ink-mute); }
.form__status.is-ok  { color: var(--citrus); }
.form__status.is-err { color: #C0392B; }

/* ================================================================ footer */
.site-footer { background: var(--ink); color: var(--paper); padding-top: clamp(4rem, 8vw, 6rem); }
.footer__grid {
  display: grid; grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: clamp(2rem, 4vw, 3rem);
  padding-bottom: clamp(3rem, 6vw, 5rem);
}
.footer__brand img { margin-bottom: 1.25rem; }
.footer__claim { margin: 0; max-width: 26ch; color: #C9C3B9; font-size: .95rem; }
.footer__nav { display: flex; flex-direction: column; gap: .65rem; align-items: flex-start; font-size: .9rem; }
.footer__nav a { color: #C9C3B9; text-decoration: none; }
.footer__nav a:hover { color: var(--citrus-lit); }
.footer__h {
  font-family: var(--mono); font-size: .62rem; letter-spacing: .16em;
  text-transform: uppercase; color: #6E6963; margin: 0 0 .4rem;
}

.footer__bar {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem;
  border-top: 1px solid #2C2925;
  padding-block: 1.75rem;
  font-family: var(--mono); font-size: .65rem; letter-spacing: .1em;
  text-transform: uppercase; color: #6E6963;
}
.footer__bar p { margin: 0; }

/* ============================================================ responsive */
@media (max-width: 1080px) {
  .stats__grid  { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .work__grid   { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .nav {
    position: fixed; inset: 4.75rem 0 auto;
    flex-direction: column; gap: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    padding: 1rem var(--gut) 2rem;
    margin: 0;
    transform: translateY(-130%);
    transition: transform .4s var(--ease);
    box-shadow: 0 24px 40px -28px rgba(0,0,0,.4);
  }
  .nav.is-open { transform: none; }
  .nav a { padding: .85rem 0; border-bottom: 1px solid var(--line); font-size: 1.05rem; }
  .burger { display: block; }
  .header__actions .btn { display: none; }

  .hero__grid    { grid-template-columns: 1fr; }
  .hero__media   { aspect-ratio: 3 / 2; order: -1; }
  .hero__scroll  { display: none; }
  .thesis__grid  { grid-template-columns: 1fr; }
  .thesis__sticky{ position: static; }
  .cards         { grid-template-columns: 1fr; }
  .contact__grid { grid-template-columns: 1fr; }
  .team__grid    { grid-template-columns: 1fr; }
  .person__media { max-width: 420px; }
}

@media (max-width: 640px) {
  .stats__grid   { grid-template-columns: 1fr; }
  .work__grid    { grid-template-columns: 1fr; }
  .quotes__grid  { grid-template-columns: 1fr; }
  .footer__grid  { grid-template-columns: 1fr; }
  .form          { grid-template-columns: 1fr; }
  .step          { grid-template-columns: 1fr; gap: .5rem; }
  .case__media   { aspect-ratio: 16 / 10; }
}

/* ============================================================== a11y/motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .js .reveal { opacity: 1; transform: none; }
  .marquee__track { animation: none; }
}

@media print {
  .site-header, .hero__scroll, .grain, .marquee { display: none; }
  .js .reveal { opacity: 1; transform: none; }
  body { background: #fff; }
}