:root {
  color-scheme: light;
  --paper: #f4f2ed;
  --paper-deep: #e9e6df;
  --ink: #171a1c;
  --muted: #5f6668;
  --line: #c9cbc6;
  --copper: #a94420;
  --copper-dark: #783016;
  --white: #fbfaf7;
  --header: rgba(244,242,237,.92);
  --surface: rgba(251,250,247,.66);
  --surface-soft: rgba(251,250,247,.45);
  --field: #f8f7f3;
  --grid: rgba(23,26,28,.032);
  --grid-strong: rgba(23,26,28,.055);
  --text-strong: #3e4446;
  --dark-section: #171a1c;
  --dark-surface: #171a1c;
  --dark-text: #fbfaf7;
  --dark-muted: #aeb3b4;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --max: 1180px;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --paper: #111416;
  --paper-deep: #191e20;
  --ink: #f2efe8;
  --muted: #aab0b1;
  --line: #3c4346;
  --copper: #df7043;
  --copper-dark: #ee956f;
  --white: #171b1d;
  --header: rgba(17,20,22,.93);
  --surface: rgba(23,27,29,.78);
  --surface-soft: rgba(23,27,29,.62);
  --field: #202527;
  --grid: rgba(242,239,232,.035);
  --grid-strong: rgba(242,239,232,.06);
  --text-strong: #c7cccd;
  --dark-section: #080a0b;
  --dark-surface: #101315;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 6rem; }
body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px),
    var(--paper);
  background-size: 32px 32px;
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }
button, input, textarea { font: inherit; }
button { color: inherit; }
h1, h2, h3 {
  hyphens: none;
  overflow-wrap: normal;
  text-wrap: balance;
  word-break: normal;
}
p { hyphens: none; overflow-wrap: normal; text-wrap: pretty; word-break: normal; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 100; padding: .7rem 1rem; background: var(--ink); color: white; }
.skip-link:focus { top: 1rem; }
.shell { width: min(calc(100% - 3rem), var(--max)); margin-inline: auto; }
.kicker, .label, .eyebrow, .index, .tech-group h3, .work-meta, .footer-title {
  font-family: var(--mono);
  font-size: .76rem;
  line-height: 1.35;
  letter-spacing: .075em;
  text-transform: uppercase;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid var(--line);
  background: var(--header);
  backdrop-filter: blur(14px);
}
.nav-wrap { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.brand { display: inline-flex; align-items: center; gap: .78rem; text-decoration: none; }
.brand-logo-mark { width: 48px; height: 29px; position: relative; overflow: hidden; flex: 0 0 auto; }
.brand-logo-mark img { position: absolute; width: 52px; height: 52px; left: -2px; top: -3px; object-fit: contain; }
.brand-copy { display: grid; line-height: 1.05; }
.brand-name { font-size: 1rem; font-weight: 750; letter-spacing: -.025em; }
.brand-tagline { margin-top: .28rem; color: var(--muted); font-family: var(--mono); font-size: .57rem; font-weight: 500; letter-spacing: .045em; text-transform: uppercase; }
.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; }
.nav-area { display: flex; align-items: center; gap: 1.4rem; }
.nav-links { display: flex; align-items: center; gap: 1.45rem; list-style: none; margin: 0; padding: 0; }
.nav-links a { text-decoration: none; font-size: .9rem; font-weight: 560; }
.nav-links a:hover, .nav-links a:focus-visible { color: var(--copper); }
.language { display: flex; align-items: center; border-left: 1px solid var(--line); padding-left: 1rem; gap: .15rem; font-family: var(--mono); font-size: .72rem; }
.language a { padding: .38rem .42rem; text-decoration: none; color: var(--muted); }
.language a[aria-current="page"] { background: var(--ink); color: var(--white); }
.menu-button { display: none; border: 0; background: none; padding: .5rem; cursor: pointer; }
.theme-toggle { min-height: 36px; display: inline-flex; align-items: center; gap: .45rem; padding: .38rem .55rem; border: 1px solid var(--line); background: transparent; cursor: pointer; font-family: var(--mono); font-size: .68rem; text-transform: uppercase; letter-spacing: .04em; }
.theme-toggle:hover, .theme-toggle:focus-visible { border-color: var(--copper); color: var(--copper-dark); }
.theme-toggle-mark { position: relative; width: 18px; height: 18px; border: 1px solid currentColor; flex: 0 0 auto; }
.theme-toggle-mark::after { content: ""; position: absolute; inset: 3px 3px 3px 9px; background: currentColor; }

.hero { min-height: 720px; display: grid; align-items: center; padding: 7.5rem 0 6.5rem; border-bottom: 1px solid var(--line); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.14fr) minmax(400px, .86fr); gap: clamp(3rem, 5.5vw, 5.5rem); align-items: center; }
.eyebrow { color: var(--copper-dark); display: flex; align-items: center; gap: .7rem; margin-bottom: 1.2rem; }
.eyebrow::before { content: ""; width: 30px; height: 1px; background: var(--copper); }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 780px; margin-bottom: 1.5rem; font-size: clamp(3rem, 5.8vw, 5.5rem); line-height: .98; letter-spacing: -.058em; font-weight: 680; }
.hero-copy { max-width: 650px; margin-bottom: 2rem; color: var(--text-strong); font-size: clamp(1.12rem, 1.7vw, 1.32rem); line-height: 1.55; }
.actions { display: flex; flex-wrap: wrap; gap: .8rem; }
.button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; gap: .65rem; padding: .72rem 1.05rem; border: 1px solid var(--ink); text-decoration: none; font-weight: 650; font-size: .92rem; transition: background .18s ease, color .18s ease, transform .18s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--ink); color: var(--white); }
.button-primary:hover { background: var(--copper-dark); border-color: var(--copper-dark); }
.button-secondary:hover { background: var(--white); }
.arrow { font-family: var(--mono); }

.signal-panel { position: relative; min-height: 470px; border: 1px solid var(--ink); background: var(--surface); overflow: hidden; }
.signal-panel::before { content: ""; position: absolute; inset: 0; background: linear-gradient(var(--grid-strong) 1px, transparent 1px), linear-gradient(90deg, var(--grid-strong) 1px, transparent 1px); background-size: 24px 24px; }
.panel-head { position: relative; z-index: 2; display: flex; justify-content: space-between; padding: .85rem 1rem; border-bottom: 1px solid var(--line); color: var(--muted); font-family: var(--mono); font-size: .7rem; text-transform: uppercase; letter-spacing: .06em; }
.system-diagram { position: absolute; inset: 60px 14px 14px; width: calc(100% - 28px); height: calc(100% - 74px); }
.diagram-node { fill: var(--paper); stroke: var(--ink); stroke-width: 1.5; }
.diagram-path { fill: none; stroke: var(--ink); stroke-width: 1.6; vector-effect: non-scaling-stroke; }
.diagram-arrowhead { fill: var(--ink); }
.diagram-title { fill: var(--ink); font-family: var(--sans); font-size: 15px; font-weight: 700; }
.diagram-subtitle { fill: var(--copper-dark); font-family: var(--mono); font-size: 10px; letter-spacing: .04em; text-transform: uppercase; }

section { padding: 7.5rem 0; border-bottom: 1px solid var(--line); }
.section-head { display: grid; grid-template-columns: 1fr 2fr; gap: 2rem; margin-bottom: 3.5rem; }
.section-head h2 { max-width: 790px; font-size: clamp(2.25rem, 4.7vw, 4.4rem); line-height: 1.03; letter-spacing: -.05em; font-weight: 650; }
.section-head p { max-width: 690px; color: var(--muted); font-size: 1.05rem; }
.kicker { color: var(--copper-dark); padding-top: .35rem; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--ink); border-left: 1px solid var(--line); }
.card { min-height: 225px; padding: 1.8rem 1.6rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--surface-soft); }
.card h3 { margin-bottom: .75rem; font-size: 1.28rem; letter-spacing: -.02em; }
.card p { color: var(--muted); font-size: .94rem; line-height: 1.65; }

.dark { color: var(--dark-text); background: var(--dark-section); }
.dark .kicker, .dark .eyebrow { color: #e38b67; }
.about-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(3rem, 6vw, 6rem); align-items: start; }
.portrait-block { position: sticky; top: 7rem; }
.portrait-block.portrait-block-aleksei { max-width: 432px; }
.portrait-photo { width: 100%; height: auto; display: block; border: 1px solid #4a4f50; object-fit: contain; object-position: center; }
.portrait-caption { display: flex; justify-content: space-between; gap: 1rem; padding: .9rem 0; border-bottom: 1px solid #414648; color: #aeb3b4; font-family: var(--mono); font-size: .68rem; text-transform: uppercase; letter-spacing: .06em; }
.about-copy h2 { margin-bottom: 1.8rem; font-size: clamp(2.4rem, 5vw, 4.8rem); line-height: 1.02; letter-spacing: -.052em; }
.about-copy .lead { color: #d5d6d2; font-size: 1.23rem; line-height: 1.65; }
.about-copy p { color: #aeb3b4; }
.facts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; margin-top: 2.6rem; background: #414648; border: 1px solid #414648; }
.fact { min-height: 135px; padding: 1.2rem; background: var(--dark-surface); }
.fact strong { display: block; margin-bottom: .45rem; font-size: 2rem; line-height: 1; font-weight: 640; color: #f2eee6; }
.fact span { color: #9da3a4; font-size: .84rem; }

.team-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 5rem; }
.team-grid h2 { max-width: 780px; font-size: clamp(2.5rem, 5vw, 4.7rem); line-height: 1.04; letter-spacing: -.05em; }
.team-copy { padding-top: .4rem; }
.team-copy p { color: var(--muted); font-size: 1.08rem; }
.team-list { list-style: none; margin: 1.8rem 0 0; padding: 0; border-top: 1px solid var(--line); }
.team-list li { display: flex; justify-content: space-between; gap: 1rem; padding: .8rem 0; border-bottom: 1px solid var(--line); font-size: .9rem; }
.team-list li::after { content: "+"; color: var(--copper); font-family: var(--mono); }
.team-carousel { margin-top: 2.6rem; }
.team-carousel-head { display: flex; justify-content: flex-end; margin-bottom: .8rem; }
.team-carousel-controls { display: flex; gap: .5rem; }
.team-carousel-controls button { width: 42px; min-height: 38px; border: 1px solid var(--ink); background: transparent; color: var(--ink); cursor: pointer; font-family: var(--mono); }
.team-carousel-controls button:hover, .team-carousel-controls button:focus-visible { background: var(--ink); color: var(--white); }
.team-carousel-track { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(290px, 46%); gap: 1rem; overflow-x: auto; overscroll-behavior-x: contain; padding-bottom: .5rem; scroll-snap-type: x mandatory; scrollbar-color: var(--copper) transparent; }
.member-card { min-height: 360px; display: flex; flex-direction: column; border: 1px solid var(--ink); background: var(--surface-soft); color: inherit; text-decoration: none; scroll-snap-align: start; transition: background .18s ease, color .18s ease, transform .18s ease; }
.member-card:hover, .member-card:focus-visible { background: var(--ink); color: var(--white); transform: translateY(-3px); }
.member-card-photo { width: 100%; height: auto; display: block; border-bottom: 1px solid var(--line); }
.member-card-photo-aleksei { aspect-ratio: 1362 / 937; object-fit: contain; background: #fff; }
.member-card-copy { flex: 1; display: flex; flex-direction: column; padding: 1.25rem; }
.member-card-role, .member-card-action { display: block; font-family: var(--mono); font-size: .7rem; letter-spacing: .05em; text-transform: uppercase; }
.member-card-action { margin-top: auto; }
.member-card-role { color: var(--copper-dark); margin-bottom: .7rem; }
.member-card:hover .member-card-role, .member-card:focus-visible .member-card-role { color: #e38b67; }
.member-card h3 { margin-bottom: .65rem; font-size: 1.65rem; letter-spacing: -.03em; }
.member-card p { margin-bottom: 1rem; color: var(--muted); font-size: .9rem; }
.member-card:hover p, .member-card:focus-visible p { color: #d5d6d2; }

.process { display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--ink); }
.step { position: relative; min-height: 235px; padding: 1.25rem 1.1rem; border-right: 1px solid var(--line); }
.step:first-child { border-left: 1px solid var(--line); }
.step::after { content: ""; position: absolute; right: -5px; top: 28px; z-index: 2; width: 9px; height: 9px; background: var(--copper); }
.step:last-child::after { display: none; }
.step .index { color: var(--muted); margin-bottom: 4.2rem; }
.step h3 { font-size: 1.08rem; }
.step p { color: var(--muted); font-size: .84rem; line-height: 1.55; }
.starts { margin-top: 2rem; color: var(--muted); font-size: .9rem; }

.work-card { display: grid; grid-template-columns: .45fr 1.55fr; border: 1px solid var(--ink); background: var(--white); }
.work-side { min-height: 400px; display: flex; flex-direction: column; justify-content: space-between; padding: 1.4rem; border-right: 1px solid var(--ink); background: var(--copper); color: var(--white); }
.work-side .work-number { font-family: var(--mono); font-size: 5rem; line-height: 1; letter-spacing: -.08em; }
.work-main { padding: clamp(1.7rem, 5vw, 4rem); }
.work-meta { color: var(--copper-dark); margin-bottom: 1rem; }
.work-main h3 { max-width: 760px; margin-bottom: 1rem; font-size: clamp(2rem, 4vw, 3.6rem); line-height: 1.06; letter-spacing: -.045em; }
.work-main p { max-width: 720px; color: var(--muted); }
.tags { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: 2rem; }
.tag { display: inline-flex; padding: .38rem .55rem; border: 1px solid var(--line); font-family: var(--mono); font-size: .67rem; text-transform: uppercase; letter-spacing: .04em; }

.tech-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem 3.5rem; }
.tech-group { border-top: 1px solid var(--ink); padding-top: 1rem; }
.tech-group h3 { color: var(--copper-dark); }
.tech-group p { color: var(--muted); font-size: .92rem; }

.contact { background: var(--paper-deep); }
.contact-grid { display: grid; grid-template-columns: minmax(0, 1.04fr) minmax(470px, .96fr); gap: clamp(3rem, 6vw, 5.5rem); }
.contact h2 { max-width: 620px; font-size: clamp(2.5rem, 4.3vw, 4rem); line-height: 1.03; letter-spacing: -.05em; }
.contact-copy { color: var(--muted); font-size: 1.08rem; }
.contact-links { margin-top: 2.3rem; border-top: 1px solid var(--ink); }
.contact-row { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; padding: .85rem 0; border-bottom: 1px solid var(--line); font-size: .9rem; }
.contact-row-link { text-decoration: none; }
.contact-row-link:hover, .contact-row-link:focus-visible { color: var(--copper-dark); }
.contact-row-link span:last-child { text-align: right; font-family: var(--mono); font-size: .72rem; }
.placeholder { color: var(--copper-dark); font-family: var(--mono); font-size: .69rem; text-transform: uppercase; letter-spacing: .05em; }
.brief-form { padding: 1.6rem; border: 1px solid var(--ink); background: var(--white); }
.brief-form h3 { font-size: 1.4rem; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.field { display: flex; flex-direction: column; gap: .35rem; }
.field.full { grid-column: 1 / -1; }
.field label { font-family: var(--mono); font-size: .7rem; text-transform: uppercase; letter-spacing: .05em; }
.field input, .field textarea { width: 100%; border: 1px solid var(--line); border-radius: 0; background: var(--field); padding: .72rem; color: var(--ink); outline: none; }
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus, .field textarea:focus { border-color: var(--copper); box-shadow: 0 0 0 2px rgba(169,68,32,.16); }
.field input[aria-invalid="true"], .field textarea[aria-invalid="true"] { border-color: #a21f1f; box-shadow: 0 0 0 2px rgba(162,31,31,.12); }
.field-help { margin: 0; color: var(--muted); font-size: .75rem; line-height: 1.45; }
.field-error { min-height: 1.2rem; margin: 0; color: #8c1d18; font-size: .75rem; line-height: 1.4; }
.attachment-box { padding: 1rem; border: 1px dashed var(--muted); background: var(--field); }
.attachment-box input[type="file"] { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.file-picker { display: inline-flex; min-height: 42px; align-items: center; justify-content: center; padding: .55rem .8rem; border: 1px solid var(--ink); background: var(--white); cursor: pointer; font-family: var(--sans); font-size: .86rem; font-weight: 650; letter-spacing: 0; text-transform: none; }
.file-picker:hover, .file-picker:focus-within { background: var(--ink); color: var(--white); }
.file-summary { margin: .65rem 0 0; color: var(--muted); font-family: var(--mono); font-size: .7rem; }
.file-list { display: grid; gap: .45rem; margin: .75rem 0 0; padding: 0; list-style: none; }
.file-item { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; align-items: center; gap: .7rem; padding: .5rem .6rem; border-top: 1px solid var(--line); font-size: .78rem; }
.file-name { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-size { color: var(--muted); font-family: var(--mono); font-size: .68rem; }
.file-remove, .captcha-refresh { border: 0; padding: .25rem; background: none; color: var(--copper-dark); cursor: pointer; font-weight: 700; }
.captcha-row { display: grid; grid-template-columns: auto minmax(90px, 1fr) auto; align-items: center; gap: .65rem; }
.captcha-challenge { min-width: 90px; padding: .72rem; border: 1px solid var(--ink); background: var(--paper); text-align: center; font-family: var(--mono); font-weight: 700; }
.captcha-row input { min-width: 0; }
.captcha-refresh { min-height: 44px; padding-inline: .55rem; border: 1px solid var(--line); background: var(--white); font-size: .78rem; }
.form-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; margin-top: 1rem; }
.form-note { color: var(--muted); font-size: .78rem; }
.form-status { min-height: 1.4rem; margin: .8rem 0 0; color: var(--copper-dark); font-size: .82rem; }

footer { padding: 2.3rem 0; background: var(--dark-section); color: var(--dark-text); }
.footer-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr; gap: 3rem; }
.footer-logo { width: 124px; height: auto; display: block; margin-bottom: 1rem; }
.footer-brand p { max-width: 320px; color: #aeb3b4; font-size: .86rem; }
.footer-title { color: #858b8c; margin-bottom: .65rem; }
.footer-links { display: grid; gap: .25rem; }
.footer-links a { color: #d5d6d2; text-decoration: none; font-size: .85rem; }
.footer-links a:hover { color: white; }
.footer-bottom { display: flex; justify-content: space-between; gap: 1rem; margin-top: 3.5rem; padding-top: 1rem; border-top: 1px solid #363b3d; color: #858b8c; font-family: var(--mono); font-size: .65rem; letter-spacing: .04em; }

@media (max-width: 980px) {
  .nav-area { gap: 1rem; }
  .nav-links { display: none; position: absolute; left: 0; right: 0; top: 76px; padding: 1.3rem 1.5rem 1.7rem; flex-direction: column; align-items: flex-start; background: var(--paper); border-bottom: 1px solid var(--ink); }
  .nav-links.open { display: flex; }
  .menu-button { display: inline-flex; }
  .hero { min-height: auto; }
  .hero-grid, .about-grid, .team-grid, .contact-grid { grid-template-columns: 1fr; }
  .signal-panel { min-height: 440px; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .portrait-block { position: static; max-width: 580px; }
  .process { grid-template-columns: repeat(3, 1fr); }
  .step:nth-child(3)::after { display: none; }
  .step:nth-child(n+4) { border-top: 1px solid var(--line); }
}

@media (max-width: 680px) {
  .shell { width: min(calc(100% - 2rem), var(--max)); }
  .nav-wrap { min-height: 68px; gap: .5rem; }
  .nav-area { gap: .45rem; }
  .nav-links { top: 68px; }
  .brand-copy { display: none; }
  .language { padding-left: .4rem; }
  .language a { padding-inline: .3rem; }
  .theme-toggle { padding-inline: .45rem; }
  .theme-toggle-label { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
  .hero { padding: 5rem 0 4.5rem; }
  h1 { font-size: clamp(2.75rem, 13vw, 4.4rem); }
  .signal-panel { min-height: 390px; }
  section { padding: 5rem 0; }
  .section-head { grid-template-columns: 1fr; gap: 1rem; margin-bottom: 2.4rem; }
  #team .section-head { grid-template-columns: minmax(0, 1fr); }
  #team .section-head h2 { font-size: clamp(1.75rem, 8vw, 2.25rem); }
  .cards, .tech-grid { grid-template-columns: 1fr; }
  .card { min-height: auto; }
  .facts { grid-template-columns: 1fr; }
  .process { grid-template-columns: 1fr; }
  .step { min-height: 180px; border-left: 1px solid var(--line); border-top: 1px solid var(--line); }
  .step:first-child { border-top: 0; }
  .step::after { right: auto; left: 24px; top: auto; bottom: -5px; }
  .step:nth-child(3)::after { display: block; }
  .work-card { grid-template-columns: 1fr; }
  .work-side { min-height: 180px; border-right: 0; border-bottom: 1px solid var(--ink); }
  .form-grid { grid-template-columns: 1fr; }
  .profile-contact .section-head { grid-template-columns: minmax(0, 1fr); }
  .profile-contact h2 { font-size: clamp(1.75rem, 8vw, 2.5rem); overflow-wrap: anywhere; }
  .profile-contact .contact-row { align-items: flex-start; flex-direction: column; gap: .35rem; }
  .profile-contact .contact-row span:last-child { text-align: left; overflow-wrap: anywhere; }
  .captcha-row { grid-template-columns: 1fr auto; }
  .captcha-challenge { grid-column: 1 / -1; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; }
  .team-carousel-track { grid-auto-columns: minmax(270px, 84%); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

.back-to-top {
  position: fixed;
  right: clamp(1rem, 3vw, 2rem);
  bottom: max(1rem, env(safe-area-inset-bottom));
  z-index: 25;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border: 1px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s ease, background .18s ease, color .18s ease;
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover, .back-to-top:focus-visible { background: var(--ink); color: var(--white); }
.back-to-top-icon { position: relative; width: 18px; height: 18px; }
.back-to-top-icon::before {
  content: "";
  position: absolute;
  top: 1px;
  left: 3px;
  border-right: 6px solid transparent;
  border-bottom: 7px solid currentColor;
  border-left: 6px solid transparent;
}
.back-to-top-icon::after {
  content: "";
  position: absolute;
  top: 7px;
  left: 8px;
  width: 2px;
  height: 10px;
  background: currentColor;
}

@media print {
  .site-header, .actions, .brief-form, .back-to-top, footer { display: none; }
  body { background: white; }
  section, .hero { break-inside: avoid; }
}

/* Projects */
.project-carousel-track,.project-list{display:grid;gap:1.25rem}
.project-carousel-controls{display:flex;gap:.5rem;justify-content:flex-end;margin-bottom:.75rem}
.project-carousel-controls button{min-width:2.75rem;min-height:2.75rem}
.project-carousel-controls button[hidden]{display:none}
.project-card{scroll-margin-inline:1rem}
.page-hero{padding:clamp(4rem,9vw,7rem) 0 2rem}
.page-hero h1{max-width:16ch;margin:.4rem 0 1rem}
.case-section{padding:2.5rem 0;border-top:1px solid var(--line)}
.case-grid{display:grid;grid-template-columns:minmax(10rem,.35fr) minmax(0,1fr);gap:2rem}
.case-grid p{max-width:70ch;margin:0}
.project-architecture{display:grid;grid-template-columns:1fr auto 1.4fr auto 1fr;align-items:center;gap:.75rem;margin:0 0 1.5rem}
.architecture-node{border:1px solid var(--line);border-radius:var(--radius);padding:1rem;display:grid;gap:.35rem}
.architecture-node span{color:var(--muted)}
.architecture-arrow{font-family:monospace}
.case-actions{display:flex;gap:1rem;flex-wrap:wrap;padding-top:1rem;padding-bottom:4rem}
@media (max-width:720px){.case-grid{grid-template-columns:1fr;gap:.75rem}.project-architecture{grid-template-columns:1fr}.architecture-arrow{transform:rotate(90deg);justify-self:center}}