/* ═══════════════════════════════════════════════════════════════
   Vellta Group corporate site
   World: precision manufacturing. Hairline rules, cut paths and
   nested parts, carrying a premium corporate composition.
   ═══════════════════════════════════════════════════════════════ */

:root {
  /* Brand */
  --blue:        #1B6BFF;   /* logo blue: accents, rules, marks */
  --blue-field:  #1052DC;   /* large blue fields (6.4:1 with white) */
  --blue-deep:   #0B3FAE;
  --blue-wash:   #EDF3FF;

  --ink:         #0A0A0B;   /* logo black */
  --ink-2:       #33333B;
  --gray:        #6B6B75;   /* 5.3:1 on white, body-safe */
  --gray-line:   #8E8E96;   /* logo gray, decorative only */

  --paper:       #FFFFFF;
  --paper-2:     #F4F5F7;
  --deep:        #08080A;
  --deep-2:      #14141A;
  --on-deep:     #9A9AA6;   /* 7.2:1 on --deep */

  --rule:        color-mix(in srgb, var(--ink) 12%, transparent);
  --rule-soft:   color-mix(in srgb, var(--ink) 7%, transparent);

  /* Type */
  --sans: "Archivo", "Helvetica Neue", Helvetica, Arial, sans-serif;

  /* Rhythm */
  --head-h: 72px;
  --shell: 1200px;
  --gut: clamp(1.25rem, 4vw, 2.5rem);
  --band-y: clamp(4.5rem, 9vw, 8.5rem);

  --r: 14px;      /* card radius, held at 12 to 16 */
  --r-sm: 8px;

  --ease: cubic-bezier(.16, 1, .3, 1);   /* exponential ease-out */

  color-scheme: light;
  accent-color: var(--blue);
  caret-color: var(--blue);
}

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

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

body {
  overflow-x: clip;
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--ink-2);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-variant-numeric: tabular-nums;
}

/* height:auto is load-bearing: the width/height attributes map to CSS
   presentational hints that would otherwise beat every aspect-ratio below. */
img, svg { display: block; max-width: 100%; height: auto; }
ul, ol { list-style: none; padding: 0; }
a { color: inherit; }
button, input, select, textarea { font: inherit; color: inherit; }

/* ── browser surfaces: these ship with no design system of their own ── */
::selection { background: var(--blue); color: #fff; }
::-moz-selection { background: var(--blue); color: #fff; }

:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
  border-radius: 3px;
}
.band-deep :focus-visible,
.band-blue :focus-visible,
.site-foot :focus-visible { outline-color: #fff; }

@supports (scrollbar-color: red blue) {
  html { scrollbar-color: var(--gray-line) var(--paper-2); scrollbar-width: thin; }
}
::-webkit-scrollbar { width: 11px; height: 11px; }
::-webkit-scrollbar-track { background: var(--paper-2); }
::-webkit-scrollbar-thumb {
  background: var(--gray-line);
  border: 3px solid var(--paper-2);
  border-radius: 99px;
}
::-webkit-scrollbar-thumb:hover { background: var(--ink-2); }

::placeholder { color: var(--gray); opacity: 1; }

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--ink); color: #fff; padding: .75rem 1.25rem;
  border-radius: 0 0 var(--r-sm) 0;
}
.skip:focus { left: 0; }

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

/* anchor targets clear the sticky bar instead of landing behind it */
section[id] { scroll-margin-top: var(--head-h); }

.band { padding-block: var(--band-y); }
.band-alt { background: var(--paper-2); }

.band-head { max-width: 62ch; margin-bottom: clamp(2.5rem, 5vw, 4rem); }

/* ── type ────────────────────────────────────────────────────── */
.h2 {
  font-size: clamp(1.9rem, 3.6vw, 3rem);
  line-height: 1.08;
  letter-spacing: -.03em;
  font-weight: 700;
  font-stretch: 105%;
  color: var(--ink);
  text-wrap: balance;
}

.lede {
  font-size: clamp(1.0625rem, 1.5vw, 1.1875rem);
  line-height: 1.6;
  color: var(--gray);
  max-width: 62ch;
  margin-top: 1.125rem;
}

p { max-width: 70ch; }

/* ── buttons ─────────────────────────────────────────────────── */
.btn {
  --btn-bg: var(--ink);
  --btn-fg: #fff;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-weight: 600;
  font-size: .9375rem;
  letter-spacing: -.01em;
  padding: .875rem 1.5rem;
  border: 1px solid var(--btn-bg);
  border-radius: 999px;
  text-decoration: none;
  cursor: pointer;
  transition: background .25s var(--ease), border-color .25s var(--ease),
              color .25s var(--ease), transform .25s var(--ease);
}
.btn:hover { --btn-bg: var(--blue-field); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-sm { padding: .625rem 1.125rem; font-size: .875rem; }

.btn-ghost {
  --btn-bg: transparent;
  --btn-fg: var(--ink);
  border-color: var(--rule);
}
.btn-ghost:hover {
  --btn-bg: transparent;
  --btn-fg: var(--blue-field);
  border-color: var(--blue);
}

.btn-invert { --btn-bg: #fff; --btn-fg: var(--blue-field); }
.btn-invert:hover { --btn-bg: var(--blue); --btn-fg: #fff; }

/* on photography: readable without a fill behind it */
.btn-outline {
  --btn-bg: rgba(255,255,255,.08);
  --btn-fg: #fff;
  border-color: rgba(255,255,255,.5);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.btn-outline:hover { --btn-bg: #fff; --btn-fg: var(--ink); border-color: #fff; }

.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }

/* ── header ──────────────────────────────────────────────────── */
/* Over the hero photograph the bar is glass and reads white; once the
   page scrolls past it, it becomes the solid light bar and flips back. */
.site-head {
  position: sticky; top: 0; z-index: 50;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease), background .3s var(--ease),
              backdrop-filter .3s var(--ease);
}
.site-head.is-stuck {
  border-bottom-color: var(--rule);
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: saturate(1.6) blur(14px);
  -webkit-backdrop-filter: saturate(1.6) blur(14px);
}

.head-inner {
  display: flex; align-items: center; gap: 2rem;
  min-height: var(--head-h);
}

.brand { flex: none; display: block; position: relative; line-height: 0; }
.brand img { height: 26px; width: auto; transition: opacity .3s var(--ease); }
.brand-light { position: absolute; top: 0; left: 0; }
.site-head.is-stuck .brand-light { opacity: 0; }
.site-head:not(.is-stuck) .brand-dark { opacity: 0; }

.nav { display: flex; gap: clamp(1rem, 2.2vw, 2rem); margin-inline-start: auto; }
.nav a {
  position: relative;
  font-size: .9375rem;
  font-weight: 500;
  color: var(--ink-2);
  text-decoration: none;
  padding-block: .35rem;
  transition: color .2s var(--ease);
}
.nav a::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: 0;
  height: 1.5px; background: var(--blue);
  transform: scaleX(0); transform-origin: left;
  transition: transform .35s var(--ease);
}
.nav a:hover { color: var(--ink); }
.nav a:hover::after, .nav a.is-active::after { transform: scaleX(1); }
.nav a.is-active { color: var(--ink); }

/* white nav while the bar floats on the hero photograph */
@media (min-width: 900px) {
  .site-head:not(.is-stuck) .nav a { color: rgba(255,255,255,.82); }
  .site-head:not(.is-stuck) .nav a:hover,
  .site-head:not(.is-stuck) .nav a.is-active { color: #fff; }
  .site-head:not(.is-stuck) .head-act .btn {
    --btn-bg: rgba(255,255,255,.1);
    --btn-fg: #fff;
    border-color: rgba(255,255,255,.5);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
  }
  .site-head:not(.is-stuck) .head-act .btn:hover {
    --btn-bg: #fff; --btn-fg: var(--ink); border-color: #fff;
  }
}
.site-head:not(.is-stuck):not(.has-menu) .burger { border-color: rgba(255,255,255,.45); }
.site-head:not(.is-stuck):not(.has-menu) .burger span { background: #fff; }

/* an open menu makes the bar solid, so it reads as one panel with the sheet */
.site-head.has-menu {
  background: var(--paper);
  border-bottom-color: var(--rule);
}
.site-head.has-menu .brand-light { opacity: 0; }
.site-head.has-menu .brand-dark { opacity: 1; }

.head-act { display: flex; align-items: center; gap: .75rem; flex: none; }

.burger {
  display: none;
  position: relative;
  width: 42px; height: 42px;
  background: none; border: 1px solid var(--rule); border-radius: 999px;
  cursor: pointer; padding: 0;
}
.burger span {
  position: absolute; left: 50%; top: 50%;
  width: 16px; height: 1.5px;
  margin: -0.75px 0 0 -8px;
  background: var(--ink);
  transition: transform .3s var(--ease);
}
.burger span:first-child { transform: translateY(-2.75px); }
.burger span:last-child  { transform: translateY(2.75px); }
.burger[aria-expanded="true"] span:first-child { transform: rotate(45deg); }
.burger[aria-expanded="true"] span:last-child  { transform: rotate(-45deg); }

/* ── hero: full-bleed photograph, the page opens on the work ── */
.hero {
  position: relative;
  isolation: isolate;
  background: var(--deep);
  color: #fff;
  /* pulled up under the sticky bar so the photograph runs to the top edge */
  margin-top: calc(-1 * var(--head-h));
  padding-top: calc(var(--head-h) + clamp(4rem, 11vw, 8rem));
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
  overflow: hidden;
}

.hero-media { position: absolute; inset: 0; z-index: -2; }
.hero-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: 55% 45%;
}

/* Two overlays with different jobs: a vertical ramp that anchors the
   headline, and a flat scrim that guarantees contrast everywhere else. */
.hero::before {
  content: "";
  position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(to right,
      rgba(8,8,10,.94) 0%,
      rgba(8,8,10,.86) 38%,
      rgba(8,8,10,.55) 68%,
      rgba(8,8,10,.42) 100%),
    linear-gradient(to bottom,
      rgba(8,8,10,.72) 0%,
      rgba(8,8,10,.30) 35%,
      rgba(8,8,10,.82) 100%);
}

.hero-inner { padding-bottom: clamp(3rem, 7vw, 6rem); }

.hero-title {
  font-size: clamp(2.25rem, 6.6vw, 4.25rem);
  line-height: 1.03;
  letter-spacing: -.035em;
  font-weight: 800;
  font-stretch: 108%;
  color: #fff;
  max-width: 15ch;
  text-shadow: 0 2px 30px rgba(0,0,0,.45);
}
.hero-title em { font-style: normal; color: #6FA0FF; }

/* each line sits behind its own cut edge */
.cut { display: block; overflow: hidden; padding-bottom: .06em; }
.cut > span { display: block; }

.hero-sub {
  font-size: clamp(1.125rem, 1.9vw, 1.375rem);
  line-height: 1.5;
  color: rgba(255,255,255,.88);
  max-width: 46ch;
  margin-top: clamp(1.5rem, 3vw, 2rem);
  text-shadow: 0 1px 18px rgba(0,0,0,.5);
}

.hero-cta { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2.25rem; }

/* value chain, sitting on the darkened foot of the photograph */
.chain {
  position: relative;
  color: rgba(255,255,255,.4);
  border-top: 1px solid rgba(255,255,255,.18);
  padding-top: clamp(1.5rem, 3vw, 2.25rem);
}
.chain-path { display: none; }

.chain-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: .5rem;
}
.chain-steps li {
  font-size: clamp(.6875rem, 1.15vw, .875rem);
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: #fff;
  display: flex; align-items: center; gap: .5rem;
}
.chain-steps .dot {
  flex: none;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 0 4px rgba(27,107,255,.22);
}
.chain-note {
  margin-top: 1.25rem;
  font-size: .9375rem;
  color: rgba(255,255,255,.6);
}

@media (max-width: 719px) {
  .chain-steps { grid-template-columns: repeat(2, 1fr); gap: .75rem 1rem; }
}

/* ── photography ─────────────────────────────────────────────
   Images carry weight here, so they get real depth: a soft cast
   shadow with an offset, never a flat rectangle on the ground.
   ─────────────────────────────────────────────────────────── */
.feature {
  margin: 0 0 clamp(2.5rem, 5vw, 4rem);
  display: grid;
  gap: clamp(1.75rem, 3.5vw, 3rem);
  align-items: end;
}
@media (min-width: 900px) { .feature { grid-template-columns: 1.15fr .85fr; } }

.feature img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: var(--r);
  box-shadow: 0 26px 50px -24px rgba(10,10,11,.45);
}
.feature figcaption p {
  font-size: clamp(1.0625rem, 1.5vw, 1.1875rem);
  line-height: 1.6;
  color: var(--gray);
  max-width: 46ch;
  margin-top: 1.125rem;
}

.side-photo { margin: 0 0 1.75rem; }
.side-photo img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--r);
  box-shadow: 0 20px 40px -22px rgba(10,10,11,.42);
}

/* a photograph behind a whole dark band */
.has-media { position: relative; isolation: isolate; overflow: hidden; }
.band-media { position: absolute; inset: 0; z-index: -2; }
.band-media img { width: 100%; height: 100%; object-fit: cover; }
.has-media::before {
  content: "";
  position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(105deg,
    rgba(8,8,10,.97) 0%,
    rgba(8,8,10,.93) 45%,
    rgba(8,8,10,.70) 100%);
}

.part-photo { padding: 0; overflow: hidden; position: relative; }
.part-photo img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
}

/* ── split section (what we do, personalization) ─────────────── */
.split { display: grid; gap: clamp(2.5rem, 5vw, 4.5rem); }
@media (min-width: 900px) {
  .split { grid-template-columns: .85fr 1.15fr; align-items: start; }
  .split-side { position: sticky; top: 108px; }
}

/* capability list, hairline-ruled rather than cards */
.caps li {
  border-top: 1px solid var(--rule);
  padding-block: clamp(1.5rem, 2.5vw, 2rem);
  display: grid;
  gap: .5rem;
}
.caps li:last-child { border-bottom: 1px solid var(--rule); }
.caps h3 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  line-height: 1.2;
  letter-spacing: -.02em;
  font-weight: 700;
  color: var(--ink);
}
.caps p { color: var(--gray); max-width: 58ch; }

@media (min-width: 720px) {
  .caps li { grid-template-columns: 15rem 1fr; gap: 2rem; align-items: baseline; }
}

/* ── products: parts nested on a sheet ───────────────────────── */
.sheet {
  display: grid;
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-radius: var(--r);
  overflow: hidden;
}
@media (min-width: 720px)  { .sheet { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1040px) { .sheet { grid-template-columns: repeat(3, 1fr); } }

.part {
  background: var(--paper);
  padding: clamp(1.5rem, 2.6vw, 2.25rem);
  display: flex; flex-direction: column; gap: 1.25rem;
  transition: background .3s var(--ease);
}
.part:hover { background: var(--blue-wash); }

/* unequal parts: the sheet is nested, not tiled.
   1 × (2×2) + 5 singles = 9 cells: the 3-column sheet closes with no holes. */
@media (min-width: 1040px) {
  .part-lg { grid-column: span 2; grid-row: span 2; }
  .part-lg .part-art { aspect-ratio: 16 / 9; }
  .part-lg h3 { font-size: clamp(1.5rem, 2.2vw, 1.875rem); }
}

.part-art {
  aspect-ratio: 4 / 3;
  display: grid; place-items: center;
  background: var(--paper-2);
  border-radius: var(--r-sm);
  color: var(--ink);
  transition: color .3s var(--ease), background .3s var(--ease);
}
.part:hover .part-art { color: var(--blue-field); background: #fff; }
.part-art svg { width: 100%; height: 100%; }

.part-body { display: grid; gap: .625rem; }
.part h3 {
  font-size: 1.25rem; line-height: 1.2; letter-spacing: -.02em;
  font-weight: 700; color: var(--ink);
}
.part p { color: var(--gray); font-size: .9375rem; }

.tags { display: flex; flex-wrap: wrap; gap: .375rem; margin-top: .375rem; }
.tags li {
  font-size: .75rem; font-weight: 600; letter-spacing: .02em;
  color: var(--gray);
  border: 1px solid var(--rule);
  border-radius: 999px;
  padding: .25rem .625rem;
}

/* ── manufacturing (deep) ────────────────────────────────────── */
.band-deep {
  background: var(--deep);
  color: var(--on-deep);
}
/* the seam where two dark bands meet, so the pair reads as two halves */
.band-deep + .band-deep { border-top: 1px solid rgba(255,255,255,.14); }
.band-deep .h2 { color: #fff; }
.band-deep .lede { color: var(--on-deep); }

.spec { display: grid; gap: clamp(2rem, 4vw, 3.5rem); }
@media (min-width: 900px) { .spec { grid-template-columns: 1fr 1fr 1.3fr; } }

.spec-title {
  font-size: .8125rem; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--blue);
  padding-bottom: 1rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid rgba(255,255,255,.14);
}
.band-alt .spec-title,
.about-side .spec-title { color: var(--blue-field); border-bottom-color: var(--rule); }

.spec-list li {
  padding-block: .625rem;
  border-bottom: 1px solid rgba(255,255,255,.08);
  font-size: .9375rem;
  color: #EDEDF2;
}
.spec-list li:last-child { border-bottom: 0; }

.spec-note {
  align-self: end;
  border-left: 1px solid var(--blue);
  padding-left: clamp(1.25rem, 2.5vw, 1.75rem);
}
.spec-note p {
  font-size: 1.0625rem;
  line-height: 1.6;
  color: #EDEDF2;
  max-width: 42ch;
}

.spec-art { color: #fff; }
.spec-art svg { width: 100%; height: auto; }
.cutline { stroke-dasharray: 400; stroke-dashoffset: 0; }
.spec-art figcaption {
  margin-top: 1.25rem;
  font-size: .8125rem;
  line-height: 1.55;
  color: var(--on-deep);
  max-width: 44ch;
}

/* ── personalization ─────────────────────────────────────────── */
.pers-list {
  display: grid;
  /* 8 items: 2 or 4 columns keeps every row full */
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-radius: var(--r);
  overflow: hidden;
}
.pers-list li {
  background: var(--paper);
  padding: 1.25rem 1.375rem;
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -.015em;
  color: var(--ink);
  transition: background .25s var(--ease), color .25s var(--ease);
}
.pers-list li:hover { background: var(--blue-field); color: #fff; }
.pers-note { margin-top: 1.25rem; font-size: .9375rem; color: var(--gray); }
@media (min-width: 480px) and (max-width: 899px) {
  .pers-list { grid-template-columns: repeat(4, 1fr); }
}
@media (min-width: 1100px) {
  .pers-list { grid-template-columns: repeat(4, 1fr); }
}

/* ── order flow ──────────────────────────────────────────────── */
.flow {
  display: grid;
  gap: 1px;
  background: var(--rule);
  border-block: 1px solid var(--rule);
  counter-reset: step;
}
@media (min-width: 640px)  { .flow { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .flow { grid-template-columns: repeat(3, 1fr); } }

.flow li {
  background: var(--paper-2);
  padding: clamp(1.5rem, 2.4vw, 2rem);
  display: grid; gap: .5rem; align-content: start;
  position: relative;
}
.flow li::before {
  content: "";
  width: 22px; height: 1.5px;
  background: var(--blue);
  margin-bottom: .875rem;
}
.flow h3 {
  font-size: 1.0625rem; font-weight: 700; letter-spacing: -.015em;
  color: var(--ink);
}
.flow p { font-size: .9375rem; color: var(--gray); }
.flow-foot {
  margin-top: 1.75rem;
  font-size: .9375rem;
  color: var(--gray);
}

/* ── for business (blue field) ───────────────────────────────── */
.band-blue { background: var(--blue-field); color: #fff; }
.band-blue .h2 { color: #fff; }
.band-blue .lede { color: rgba(255,255,255,.86); }

.biz { display: grid; gap: clamp(2.5rem, 5vw, 4rem); }
@media (min-width: 900px) { .biz { grid-template-columns: 1.1fr .9fr; align-items: center; } }

.biz .btn { margin-top: 2rem; }

.biz-list li {
  display: flex; align-items: center; gap: .875rem;
  padding-block: 1rem;
  border-bottom: 1px solid rgba(255,255,255,.22);
  font-size: clamp(1.0625rem, 1.7vw, 1.25rem);
  font-weight: 600;
  letter-spacing: -.015em;
}
.biz-list li:first-child { border-top: 1px solid rgba(255,255,255,.22); }
.biz-list li::before {
  content: "";
  flex: none;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #fff;
}

/* ── global ──────────────────────────────────────────────────── */
.global { display: grid; gap: clamp(2rem, 4vw, 3.5rem); }
@media (min-width: 900px) { .global { grid-template-columns: 1.05fr .95fr; align-items: start; } }

.global-line {
  font-size: clamp(2rem, 4.6vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: -.035em;
  font-weight: 800;
  font-stretch: 106%;
  color: var(--ink);
}
.global-line br + * { color: var(--blue); }

.markets {
  margin-top: 2rem;
  display: grid;
  gap: 0;
}
.markets li {
  padding-block: .875rem;
  border-bottom: 1px solid var(--rule);
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink);
}
.markets li:first-child { border-top: 1px solid var(--rule); }

/* ── about ───────────────────────────────────────────────────── */
.about { display: grid; gap: clamp(2.5rem, 5vw, 4rem); }
@media (min-width: 900px) { .about { grid-template-columns: 1.25fr .75fr; align-items: start; } }

.about-main { display: grid; gap: 1.25rem; }
.about-lead {
  font-size: clamp(1.1875rem, 2vw, 1.5rem);
  line-height: 1.4;
  letter-spacing: -.02em;
  font-weight: 600;
  color: var(--ink);
  max-width: 46ch;
}
.about-main p { color: var(--gray); }

.disc dt {
  font-size: 1.0625rem; font-weight: 700; letter-spacing: -.015em;
  color: var(--ink);
  margin-top: 1.5rem;
}
.disc dt:first-of-type { margin-top: 0; }
.disc dd {
  margin: .375rem 0 0;
  font-size: .9375rem;
  color: var(--gray);
  max-width: 42ch;
}

/* ── contact ─────────────────────────────────────────────────── */
.contact { display: grid; gap: clamp(2.5rem, 5vw, 4rem); }
@media (min-width: 900px) { .contact { grid-template-columns: .85fr 1.15fr; align-items: start; } }

.contact-alt {
  margin-top: 1.75rem;
  font-size: .875rem;
  color: var(--gray);
}

.form { display: grid; gap: 1.25rem; }
@media (min-width: 620px) { .form { grid-template-columns: 1fr 1fr; } }
.field-full { grid-column: 1 / -1; }

.field { display: grid; gap: .5rem; }
.field label {
  font-size: .8125rem; font-weight: 700;
  letter-spacing: .06em; text-transform: uppercase;
  color: var(--ink);
}
.field .opt {
  font-weight: 500; letter-spacing: .02em; text-transform: none;
  color: var(--gray);
}

.field input, .field select, .field textarea {
  width: 100%;
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: var(--r-sm);
  padding: .8125rem 1rem;
  font-size: 1rem;
  color: var(--ink);
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.band-alt .field input, .band-alt .field select, .band-alt .field textarea { background: #fff; }

.field textarea { resize: vertical; min-height: 8rem; }

.field select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='M4 6.5 8 10.5 12 6.5' stroke='%236B6B75' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 16px;
  padding-right: 2.75rem;
}

.field input:hover, .field select:hover, .field textarea:hover { border-color: var(--gray-line); }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--blue) 18%, transparent);
}

.field.is-bad input, .field.is-bad select, .field.is-bad textarea { border-color: #C4123A; }
.err { font-size: .8125rem; color: #C4123A; font-weight: 500; }

.form-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; }
.form-status { font-size: .875rem; color: var(--gray); margin: 0; }
.form-status.is-ok { color: var(--blue-field); font-weight: 600; }
.form-status.is-bad { color: #C4123A; font-weight: 600; }

/* content the client still has to supply, visibly provisional and never faked */
[data-placeholder] {
  border-left: 1px solid var(--gray-line);
  padding-left: .75rem;
  color: var(--gray);
  font-style: italic;
}

/* ── footer ──────────────────────────────────────────────────── */
.site-foot {
  background: var(--deep);
  color: var(--on-deep);
  padding-top: clamp(3.5rem, 7vw, 6rem);
}
.foot-inner { display: grid; gap: clamp(2.5rem, 5vw, 4rem); padding-bottom: 3.5rem; }
@media (min-width: 860px) { .foot-inner { grid-template-columns: 1fr 1.1fr; } }

.foot-brand img { height: 28px; width: auto; }
.foot-brand p {
  margin-top: 1.5rem;
  font-size: 1.0625rem;
  line-height: 1.5;
  color: #EDEDF2;
  max-width: 34ch;
}

.foot-nav { display: grid; grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr)); gap: 2rem; }
.foot-nav h3 {
  font-size: .75rem; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase;
  color: #fff;
  margin-bottom: 1rem;
}
.foot-nav a, .foot-ph {
  display: block;
  font-size: .9375rem;
  padding-block: .3125rem;
  color: var(--on-deep);
  text-decoration: none;
  transition: color .2s var(--ease);
}
.foot-nav a:hover { color: #fff; }
.foot-ph { border-left-color: rgba(255,255,255,.3); }

.foot-base {
  border-top: 1px solid rgba(255,255,255,.12);
  padding-block: 1.75rem;
}
.foot-base p { font-size: .8125rem; color: var(--on-deep); max-width: none; }

/* ═══ mobile nav ═══════════════════════════════════════════════ */
@media (max-width: 899px) {
  .burger { display: grid; }
  .head-act .btn-sm { display: none; }

  .nav {
    position: fixed;
    inset: 72px 0 auto;
    flex-direction: column;
    gap: 0;
    margin: 0;
    padding: .5rem var(--gut) 1.5rem;
    background: var(--paper);
    border-bottom: 1px solid var(--rule);
    box-shadow: 0 18px 40px -20px rgba(10,10,11,.28);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: transform .32s var(--ease), opacity .24s var(--ease), visibility .32s;
  }
  .nav.is-open { transform: none; opacity: 1; visibility: visible; }
  .nav a { padding-block: .875rem; border-bottom: 1px solid var(--rule-soft); font-size: 1.0625rem; }
  .nav a::after { display: none; }
}

/* ═══ motion ══════════════════════════════════════════════════
   One authored moment: the page is cut open. The rule sweeps
   like a tool pass, the headline rises out of the kerf, and the
   drawn paths further down complete the same gesture on view.
   Everything is visible by default; .js gates the pre-state so a
   failed script can never hide content.
   ═════════════════════════════════════════════════════════════ */
@media (prefers-reduced-motion: no-preference) {

  .hero-rule { animation: sweep 1.1s var(--ease) .1s both; }
  .js .cut > span { animation: rise .95s var(--ease) both; }
  .js .hero-title .cut:nth-child(1) > span { animation-delay: .30s; }
  .js .hero-title .cut:nth-child(2) > span { animation-delay: .40s; }
  .js .hero-sub  { animation: rise .95s var(--ease) .52s both; }
  .js .hero-cta  { animation: rise .95s var(--ease) .60s both; }

  @keyframes sweep { from { transform: scaleX(0); } to { transform: scaleX(1); } }
  @keyframes rise  { from { opacity: 0; transform: translateY(1.1em); } to { opacity: 1; transform: none; } }

  /* drawn paths complete the same cut gesture when they arrive */
  .js .chain-line { stroke-dashoffset: 1200; }
  .js .cutline { stroke-dashoffset: 400; }
  .js .chain-line.is-drawn, .js .cutline.is-drawn {
    stroke-dashoffset: 0;
    transition: stroke-dashoffset 1.4s var(--ease);
  }

  .js .chain-steps li, .js .part {
    opacity: 0;
    transform: translateY(14px);
  }
  .js .chain-steps li.is-in, .js .part.is-in {
    opacity: 1;
    transform: none;
    transition: opacity .7s var(--ease), transform .7s var(--ease);
  }
}

/* print */
@media print {
  .site-head, .hero-cta, .form, .burger { display: none; }
  body { color: #000; }
  .band-deep, .band-blue, .site-foot { background: #fff !important; color: #000 !important; }
}