:root {
  --red: #d71920;
  --charcoal: #26282b;
  --ink: #26282b;
  --mid: #62666b;
  --light: #e7e8e8;
  --paper: #f4f4f2;
  --white: #f8f8f6;
  --line-dark: rgba(231, 232, 232, .18);
  --line-light: rgba(38, 40, 43, .16);
  --ease: cubic-bezier(.2, .75, .2, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--charcoal); color: var(--ink); font-family: Lato, Arial, sans-serif; font-weight: 400; }
a { color: inherit; text-decoration: none; }
.sr-only { clip: rect(0 0 0 0); clip-path: inset(50%); height: 1px; overflow: hidden; position: absolute; white-space: nowrap; width: 1px; }
.site-shell { display: block; min-height: 100vh; }
.side-rail { position: fixed; inset: 0 auto 0 0; z-index: 20; width: 220px; display: flex; flex-direction: column; padding: 34px 28px 28px; color: var(--white); background: var(--charcoal); border-right: 1px solid var(--line-dark); }
.brand { display: inline-flex; flex-direction: column; gap: 7px; }
.brand-name { font-size: 47px; line-height: .82; font-weight: 300; letter-spacing: -.07em; }
.brand-l { color: var(--red); font-weight: 400; }
.brand-subtitle { max-width: 152px; padding-top: 8px; border-top: 1px solid var(--red); color: rgba(248,248,246,.76); font-size: 9px; letter-spacing: .23em; line-height: 1.4; text-transform: uppercase; }
.main-nav { display: flex; flex-direction: column; gap: 22px; margin-top: 116px; }
.main-nav a { display: flex; gap: 9px; align-items: baseline; color: rgba(248,248,246,.48); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; transition: color .25s ease; }
.main-nav a span { color: var(--red); font-size: 9px; opacity: 0; transition: opacity .25s ease; }
.main-nav a:hover, .main-nav a.active { color: var(--white); }
.main-nav a.active span { opacity: 1; }
.rail-foot { display: grid; gap: 9px; margin-top: auto; color: rgba(248,248,246,.44); font-size: 10px; letter-spacing: .12em; text-transform: uppercase; }
.rail-line { width: 26px; height: 1px; margin-bottom: 7px; background: var(--red); }
.menu-toggle { display: none; }
main { min-width: 0; margin-left: 220px; position: relative; z-index: 1; }
.section-dark { color: var(--white); background: var(--charcoal); }
.section-light { position: relative; overflow: hidden; background: var(--paper); }
.section-red { color: var(--white); background: var(--red); }
.hero { position: relative; display: flex; min-height: min(780px, 100vh); align-items: center; overflow: hidden; background: linear-gradient(90deg, rgba(38,40,43,.98) 0%, rgba(38,40,43,.91) 33%, rgba(38,40,43,.14) 68%, rgba(38,40,43,.14) 100%), url('assets/hero-industrial.png') center / cover no-repeat; }
.hero-image { display: none; }
.hero-grid { position: absolute; inset: 0; z-index: 1; opacity: .35; background-image: linear-gradient(rgba(231,232,232,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(231,232,232,.08) 1px, transparent 1px); background-size: 88px 88px; mask-image: linear-gradient(90deg, black 0%, transparent 82%); }
.hero-bird { position: absolute; z-index: 2; right: clamp(25px, 5vw, 80px); bottom: 8%; width: min(38vw, 500px); aspect-ratio: 531 / 346; background: url('assets/loro.png') center / contain no-repeat; filter: contrast(1.12) drop-shadow(0 22px 18px rgba(0,0,0,.22)); opacity: .88; transform: rotate(2deg); pointer-events: none; }
.hero-copy { position: relative; z-index: 2; width: min(650px, 69%); margin-left: clamp(48px, 9vw, 150px); padding: 78px 0; }
.kicker, .overline, .section-tag { margin: 0 0 25px; color: var(--red); font-size: 11px; letter-spacing: .19em; text-transform: uppercase; }
.hero .kicker { color: rgba(248,248,246,.74); }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 650px; margin-bottom: 26px; font-size: clamp(47px, 6vw, 85px); font-weight: 300; letter-spacing: -.06em; line-height: .97; }
.hero-intro { max-width: 400px; margin-bottom: 38px; color: rgba(248,248,246,.68); font-size: 16px; line-height: 1.55; }
.button { display: inline-flex; gap: 34px; align-items: center; padding: 16px 19px; font-size: 11px; letter-spacing: .13em; text-transform: uppercase; transition: transform .25s var(--ease), background .25s ease, color .25s ease; }
.button:hover { transform: translateY(-3px); }
.button-red { color: var(--white); background: var(--red); }
.button-red:hover { background: #ee2630; }
.button-dark { color: var(--white); background: var(--charcoal); }
.button-dark:hover { background: #111214; }
.hero-meta { position: absolute; z-index: 2; right: 42px; bottom: 35px; display: flex; gap: 12px; align-items: center; color: rgba(248,248,246,.62); font-size: 10px; letter-spacing: .14em; }
.meta-rule { width: 54px; height: 1px; background: var(--red); }
.hero-note { position: absolute; z-index: 2; right: 42px; top: 35px; color: rgba(248,248,246,.53); font-size: 10px; letter-spacing: .13em; text-transform: uppercase; writing-mode: vertical-rl; transform: rotate(180deg); }
.manifesto { min-height: 620px; padding: 94px clamp(38px, 8vw, 126px); }
.manifesto-layout { display: grid; grid-template-columns: 1.1fr .75fr; gap: 10vw; align-items: end; max-width: 1080px; }
.manifesto h2, .section-heading h2, .contact h2 { max-width: 600px; margin-bottom: 0; font-size: clamp(43px, 5.5vw, 77px); font-weight: 300; letter-spacing: -.065em; line-height: .98; }
.manifesto .overline { margin-bottom: 22px; color: var(--mid); }
.manifesto-copy { padding-bottom: 6px; }
.manifesto-copy p { max-width: 390px; margin-bottom: 22px; font-size: 20px; line-height: 1.35; }
.manifesto-copy .muted { color: var(--mid); font-size: 14px; line-height: 1.55; }
.text-link { display: inline-flex; gap: 18px; margin-top: 13px; color: var(--red); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; }
.text-link span { font-size: 18px; line-height: .5; }
.construction-mark { position: absolute; right: 6%; bottom: -60px; width: 300px; height: 300px; opacity: .45; border: 1px solid var(--line-light); transform: rotate(15deg); }
.construction-mark::before, .construction-mark::after { position: absolute; inset: 50% auto auto 0; width: 100%; height: 1px; background: var(--line-light); content: ''; }
.construction-mark::after { transform: rotate(90deg); }
.construction-mark span { position: absolute; display: block; border: 1px solid var(--line-light); border-radius: 50%; }
.construction-mark span:nth-child(1) { inset: 20%; }
.construction-mark span:nth-child(2) { inset: 35%; }
.construction-mark span:nth-child(3) { inset: 12%; border-radius: 0; transform: rotate(45deg); }
.construction-mark i { position: absolute; left: 50%; top: 50%; width: 42%; height: 1px; background: var(--red); transform: rotate(-45deg); transform-origin: left; }
.services { padding: 105px clamp(38px, 8vw, 126px) 130px; }
.section-heading { margin-bottom: 55px; }
.section-heading h2 { margin-bottom: 17px; }
.section-heading > p { color: var(--mid); font-size: 16px; }
.service-list { max-width: 1120px; border-top: 1px solid var(--line-light); }
.service-row { display: grid; grid-template-columns: 75px 1fr 1.1fr 40px; gap: 20px; align-items: center; padding: 29px 0; border-bottom: 1px solid var(--line-light); transition: padding .3s var(--ease), background .3s ease; }
.service-row:hover { padding-left: 15px; padding-right: 15px; background: rgba(215,25,32,.06); }
.service-index { color: var(--red); font-size: 11px; letter-spacing: .1em; }
.service-row h3 { margin-bottom: 0; font-size: 24px; font-weight: 400; letter-spacing: -.03em; }
.service-row p { max-width: 320px; margin: 0; color: var(--mid); font-size: 13px; line-height: 1.45; }
.service-arrow { color: var(--red); font-size: 24px; text-align: right; }
.projects { padding: 106px clamp(38px, 8vw, 126px) 125px; }
.project-heading { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 25px; }
.project-heading .section-tag { flex: 0 0 100%; }
.project-heading h2 { margin: 0; }
.project-heading > p { max-width: 220px; margin: 0; color: rgba(248,248,246,.55); }
.project-grid { display: grid; grid-template-columns: 1.35fr .85fr .85fr; gap: 18px; align-items: end; }
.project-card { display: block; }
.project-visual { position: relative; min-height: 360px; overflow: hidden; background: #42454a; }
.project-card-main .project-visual { min-height: 500px; }
.project-visual::before, .project-visual::after { position: absolute; content: ''; transition: transform .8s var(--ease); }
.project-card:hover .project-visual::before { transform: scale(1.08); }
.visual-steel { background: linear-gradient(138deg, rgba(215,25,32,.45) 0 5%, transparent 5% 100%), linear-gradient(165deg, #1f2224 0 36%, #596068 36% 37%, #25282b 37% 58%, #73787c 58% 59%, #323539 59%); }
.visual-steel::before { inset: -10% 15% 0 38%; border-left: 13px solid rgba(248,248,246,.24); border-right: 5px solid rgba(248,248,246,.22); transform: skewX(-12deg); }
.visual-steel::after { right: 3%; bottom: 12%; width: 67%; height: 1px; background: var(--red); transform: rotate(-22deg); }
.visual-concrete { background: linear-gradient(150deg, #bfc0be, #5e6265 60%, #25282b); }
.visual-concrete::before { inset: 12% 17% 0 21%; border: 1px solid rgba(248,248,246,.55); transform: skewY(18deg); }
.visual-concrete::after { left: 0; top: 42%; width: 100%; height: 1px; background: rgba(248,248,246,.65); transform: rotate(-18deg); }
.visual-grid { background-color: #26282b; background-image: linear-gradient(rgba(231,232,232,.28) 1px, transparent 1px), linear-gradient(90deg, rgba(231,232,232,.28) 1px, transparent 1px); background-size: 27px 27px; }
.visual-grid::before { inset: 26%; border: 1px solid var(--red); transform: rotate(45deg); }
.visual-grid::after { inset: 14%; border: 1px solid rgba(231,232,232,.45); border-radius: 50%; }
.visual-label { position: absolute; top: 18px; left: 18px; z-index: 1; color: rgba(248,248,246,.72); font-size: 10px; letter-spacing: .15em; text-transform: uppercase; }
.project-caption { display: flex; justify-content: space-between; gap: 10px; padding-top: 15px; color: rgba(248,248,246,.7); font-size: 11px; letter-spacing: .06em; text-transform: uppercase; }
.project-caption strong { color: var(--red); font-weight: 400; }
.contact { position: relative; min-height: 610px; overflow: hidden; padding: 110px clamp(38px, 8vw, 126px) 47px; }
.contact .section-tag { color: rgba(248,248,246,.75); }
.contact h2 { position: relative; z-index: 1; margin-bottom: 44px; }
.contact-mark { position: absolute; right: 7%; top: 42px; width: min(34vw, 420px); aspect-ratio: 1; overflow: hidden; opacity: .28; border: 1px solid rgba(248,248,246,.55); transform: rotate(-7deg); }
.contact-mark::before, .contact-mark::after { position: absolute; inset: 18%; border: 1px solid rgba(248,248,246,.5); border-radius: 50%; content: ''; }
.contact-mark::after { inset: 31%; border-radius: 0; transform: rotate(45deg); }
.bird-window { position: absolute; inset: 8%; background: url('assets/loro.png') center / 115% auto no-repeat; filter: grayscale(1) contrast(1.05); opacity: .24; }
.contact-bottom { position: absolute; right: clamp(38px, 8vw, 126px); bottom: 47px; left: clamp(38px, 8vw, 126px); display: flex; justify-content: space-between; padding-top: 16px; border-top: 1px solid rgba(248,248,246,.4); color: rgba(248,248,246,.8); font-size: 11px; letter-spacing: .1em; }
.footer { display: flex; justify-content: space-between; gap: 20px; padding: 20px clamp(38px, 8vw, 126px); color: rgba(248,248,246,.48); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; }
.footer a { color: var(--red); }

@media (max-width: 900px) {
  .site-shell { display: block; }
  .side-rail { position: fixed; width: 100%; height: 72px; flex-direction: row; align-items: center; justify-content: space-between; padding: 15px 24px; }
  .brand-name { font-size: 38px; }
  .brand-subtitle, .rail-foot { display: none; }
  .menu-toggle { display: flex; flex-direction: column; gap: 5px; padding: 8px 0 8px 20px; border: 0; background: transparent; cursor: pointer; }
  .menu-toggle span:not(.sr-only) { width: 25px; height: 1px; background: var(--white); }
  .main-nav { position: absolute; top: 72px; right: 0; left: 0; display: none; gap: 18px; margin: 0; padding: 25px 24px 30px; background: var(--charcoal); border-top: 1px solid var(--line-dark); }
  .main-nav.open { display: flex; }
  main { margin-left: 0; padding-top: 72px; }
  .hero { min-height: calc(100vh - 72px); }
  .hero-copy { width: min(650px, 83%); margin-left: 9vw; }
  .hero-note { display: none; }
  .manifesto-layout { grid-template-columns: 1fr; gap: 55px; }
  .construction-mark { right: -65px; }
  .project-grid { grid-template-columns: 1fr 1fr; }
  .project-card-main { grid-column: span 2; }
  .project-card-main .project-visual { min-height: 430px; }
}

@media (max-width: 600px) {
  .hero-image { background: linear-gradient(90deg, rgba(38,40,43,.98) 0%, rgba(38,40,43,.82) 100%), url('assets/hero-industrial.png') 62% center / cover no-repeat; }
  .hero-bird { right: -45px; bottom: 6%; width: 285px; opacity: .46; }
  .hero-copy { width: auto; margin-left: 25px; margin-right: 25px; padding-top: 65px; }
  h1 { font-size: clamp(43px, 13vw, 67px); }
  .hero-intro { font-size: 15px; }
  .hero-meta { right: 24px; bottom: 24px; }
  .manifesto, .services, .projects, .contact { padding-right: 25px; padding-left: 25px; }
  .manifesto { min-height: 610px; padding-top: 70px; }
  .manifesto-copy p { font-size: 18px; }
  .services { padding-top: 72px; padding-bottom: 85px; }
  .service-row { grid-template-columns: 40px 1fr 25px; gap: 10px; padding: 23px 0; }
  .service-row h3 { font-size: 21px; }
  .service-row p { grid-column: 2 / 4; }
  .service-arrow { grid-column: 3; grid-row: 1; }
  .projects { padding-top: 75px; padding-bottom: 85px; }
  .project-grid { grid-template-columns: 1fr; gap: 36px; }
  .project-card-main { grid-column: auto; }
  .project-card-main .project-visual, .project-visual { min-height: 345px; }
  .contact { min-height: 650px; padding-top: 75px; }
  .contact-mark { top: 190px; right: -75px; width: 370px; }
  .contact-bottom { right: 25px; bottom: 25px; left: 25px; flex-direction: column; gap: 8px; }
  .footer { flex-direction: column; padding: 22px 25px; }
}