/* 102 – Op-Art · Schwarzweiß-Illusionen der 60er, Signalrot als einziger Farbtupfer */
:root {
  --k: #0b0b0b;
  --k2: #151515;
  --w: #f2f1ec;
  --mute: #b9b8b2;
  --red: #e8291c;
  --red-t: #ff5a4d; /* Rot für Text auf Schwarz (AA) */
  --disp: 'Unbounded', 'Arial Black', system-ui, sans-serif;
  --sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
  --wrap: 1240px;
  --pad: clamp(16px, 4vw, 56px);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--k); color: var(--w); font: 400 17px/1.6 var(--sans); overflow-x: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3 { margin: 0; font-family: var(--disp); font-weight: 600; }
p { margin: 0; }
ul, ol, dl, dd { margin: 0; padding: 0; list-style: none; }
button { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--red-t); outline-offset: 4px; }
.skip { position: absolute; left: 12px; top: -80px; z-index: 60; background: var(--w); color: var(--k); padding: 10px 16px; font-weight: 700; text-decoration: none; }
.skip:focus { top: 12px; }
.wrap { max-width: calc(var(--wrap) + 2 * var(--pad)); margin-inline: auto; padding-inline: var(--pad); }

/* ---------- Kleinteile ---------- */
.label { display: flex; align-items: center; gap: 12px; margin-bottom: 22px; font: 600 12.5px/1 var(--sans); letter-spacing: .22em; text-transform: uppercase; color: var(--red-t); }
.mark { width: 22px; height: 22px; border-radius: 50%; flex: none; background: repeating-radial-gradient(circle, var(--w) 0 1.6px, var(--k) 1.6px 3.6px); box-shadow: 0 0 0 1.5px var(--w); }
.sec-head h2 { font-size: clamp(30px, 3.6vw, 52px); line-height: 1.08; letter-spacing: -.02em; max-width: 18ch; text-wrap: balance; }
.intro { margin-top: 24px; max-width: 56ch; color: var(--mute); font-size: 18px; }

.btn { position: relative; display: inline-flex; align-items: center; justify-content: center; min-height: 52px; padding: 15px 26px; font: 600 15px/1.1 var(--disp); text-decoration: none; letter-spacing: -.005em; transition: transform .2s; }
.btn--main { background: var(--w); color: var(--k); }
.btn--main::after { /* gestreifter Schatten */
  content: ''; position: absolute; inset: 0; z-index: -1; transform: translate(8px, 8px);
  background: repeating-linear-gradient(-45deg, var(--w) 0 2px, transparent 2px 6px); transition: transform .2s;
}
.btn--main { isolation: isolate; }
.btn--main:hover { transform: translate(-3px, -3px); }
.btn--main:hover::after { transform: translate(11px, 11px); }
.btn--main:active { transform: translate(4px, 4px); }
.btn--main:active::after { transform: translate(4px, 4px); }
.btn--line { color: var(--w); box-shadow: inset 0 0 0 2px var(--w); }
.btn--line:hover { background: var(--red); box-shadow: inset 0 0 0 2px var(--red); }

/* ---------- Kopf ---------- */
.top { position: relative; z-index: 30; background: var(--k); }
.top::after { content: ''; position: absolute; left: 0; right: 0; bottom: -8px; height: 8px; background: repeating-linear-gradient(90deg, var(--w) 0 2px, var(--k) 2px 6px); }
.top__in { display: flex; align-items: center; gap: 32px; min-height: 76px; }
.logo { flex: none; display: block; }
.logo img { width: 64px; }
.nav { flex: 1; display: flex; align-items: center; gap: 32px; }
.nav__list { display: flex; gap: clamp(18px, 2.6vw, 40px); margin-left: auto; }
.nav__list a { position: relative; display: inline-block; padding: 8px 0; font: 500 13.5px/1 var(--sans); letter-spacing: .16em; text-transform: uppercase; text-decoration: none; }
.nav__list a::before { content: ''; position: absolute; left: 50%; bottom: -2px; width: 7px; height: 7px; margin-left: -3.5px; border-radius: 50%; background: var(--red); transform: scale(0); transition: transform .2s; }
.nav__list a:hover::before, .nav__list a:focus-visible::before { transform: scale(1); }
.nav__end { display: flex; align-items: center; gap: 18px; }
.tel { font: 500 15px/1 var(--sans); letter-spacing: .03em; text-decoration: none; padding: 8px 0; border-bottom: 1px solid rgba(242,241,236,.4); }
.tel:hover { border-color: var(--red); }
.lang { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 50%; text-decoration: none; font: 600 13px/1 var(--disp); color: var(--k); background: var(--w); box-shadow: 0 0 0 3px var(--k), 0 0 0 5px var(--w); }
.lang:hover { background: var(--red); color: var(--w); }
.menu { display: none; }

/* ---------- Hero ---------- */
.hero {
  --R: min(32vh, 23vw, 330px);
  --cx: 38%; --cy: 50%;
  position: relative; overflow: hidden; background: var(--w);
  height: max(600px, calc(100vh - 76px)); min-height: 0;
}
.field { position: absolute; inset: 0; }
.field__img { position: absolute; max-width: none; width: calc(var(--R) * 8); height: calc(var(--R) * 8); left: calc(var(--cx) - var(--R) * 4); top: calc(var(--cy) - var(--R) * 4); }
.disc {
  position: absolute; z-index: 2; width: calc(var(--R) * 2); height: calc(var(--R) * 2);
  left: calc(var(--cx) - var(--R)); top: calc(var(--cy) - var(--R));
  border-radius: 50%; display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: calc(var(--R) * .2); text-align: center; color: var(--w);
}
.kicker { font: 500 calc(var(--R) * .042)/1.4 var(--sans); letter-spacing: .18em; text-transform: uppercase; color: var(--mute); max-width: 30ch; margin-bottom: calc(var(--R) * .07); }
.kicker::after { content: ''; display: block; width: 26px; height: 3px; margin: calc(var(--R) * .06) auto 0; background: var(--red); }
.hero h1 { font-size: calc(var(--R) * .132); line-height: 1.1; letter-spacing: -.02em; font-weight: 600; hyphens: manual; text-wrap: balance; }
.hero__box {
  position: absolute; z-index: 2; right: max(var(--pad), calc((100vw - var(--wrap)) / 2)); bottom: max(48px, 8vh);
  width: min(440px, 33vw); padding: 32px 34px 30px; background: var(--k); color: var(--w);
}
.hero__box::before { content: ''; position: absolute; left: 0; right: 0; top: 0; height: 6px; background: var(--red); }
.lead { font-size: 16.5px; line-height: 1.6; color: #e4e3dd; }
.ctas { display: flex; flex-wrap: wrap; gap: 16px 18px; margin-top: 26px; }
.avail { display: flex; align-items: center; gap: 10px; margin-top: 24px; padding-top: 18px; border-top: 1px solid rgba(242,241,236,.2); font: 500 13px/1.4 var(--sans); letter-spacing: .08em; text-transform: uppercase; color: var(--mute); }
.pulse { width: 12px; height: 12px; border-radius: 50%; flex: none; background: repeating-radial-gradient(circle, var(--red) 0 1.5px, var(--k) 1.5px 3px); box-shadow: 0 0 0 1.5px var(--red); }

/* ---------- Schwerpunkt ---------- */
.focus { padding-block: clamp(110px, 12vw, 170px) clamp(90px, 10vw, 150px); }
.focus__top { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(40px, 6vw, 100px); align-items: center; }
.vega { margin: 0; justify-self: end; width: min(100%, 440px); aspect-ratio: 1; position: relative; }
.vega img { width: 100%; height: 100%; }
.vega::after { content: ''; position: absolute; right: -14px; bottom: -14px; width: 28px; height: 28px; background: var(--red); border-radius: 50%; }

.cases { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 clamp(28px, 4vw, 56px); margin-top: clamp(80px, 9vw, 130px); counter-reset: c; }
.cases li { position: relative; padding: 30px 0 44px; border-top: 1px solid rgba(242,241,236,.28); }
.cases li::before { content: ''; position: absolute; left: 0; top: -1px; width: 48px; height: 3px; background: var(--w); }
.cases__no { display: grid; place-items: center; width: 54px; height: 54px; border-radius: 50%; margin-bottom: 22px; font: 600 15px/1 var(--disp); color: var(--k); background: var(--w); box-shadow: 0 0 0 4px var(--k), 0 0 0 6px var(--w), 0 0 0 10px var(--k), 0 0 0 12px var(--w); }
.cases li:nth-child(4) .cases__no { background: var(--red); color: var(--w); }
.cases h3 { font-size: 20px; line-height: 1.2; letter-spacing: -.01em; margin-bottom: 10px; hyphens: auto; }
.cases p { color: var(--mute); font-size: 16.5px; hyphens: auto; }

.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; margin-top: clamp(80px, 9vw, 130px); }
.stats li { position: relative; display: grid; justify-items: center; text-align: center; }
.target { position: relative; width: min(260px, 100%); aspect-ratio: 1; grid-area: 1 / 1; }
.target img { width: 100%; height: 100%; }
.stats b { grid-area: 1 / 1; align-self: center; z-index: 1; display: grid; place-items: center; width: 46%; aspect-ratio: 1; max-width: 120px; border-radius: 50%; background: var(--k); font: 700 clamp(30px, 3.4vw, 46px)/1 var(--disp); letter-spacing: -.03em; box-shadow: 0 0 0 3px var(--k); }
.stats b.small { font-size: clamp(17px, 1.7vw, 22px); letter-spacing: -.01em; }
.target--b + b { background: var(--red); }
.stats__l { margin-top: 22px; max-width: 22ch; font: 500 14px/1.45 var(--sans); letter-spacing: .12em; text-transform: uppercase; color: var(--mute); }

.route { margin: clamp(100px, 11vw, 150px) 0 0; display: grid; grid-template-columns: 1.6fr 1fr; gap: clamp(32px, 4vw, 64px); align-items: center; }
.route__map { position: relative; height: 400px; overflow: hidden; background: var(--k); box-shadow: inset 0 0 0 1px rgba(242,241,236,.2); }
.node { position: absolute; width: 300px; height: 300px; margin: -150px 0 0 -150px; border-radius: 50%; background: repeating-radial-gradient(circle, rgba(242,241,236,.92) 0 1.4px, transparent 1.4px 7px); mask-image: radial-gradient(circle, #000 55%, transparent 71%); -webkit-mask-image: radial-gradient(circle, #000 55%, transparent 71%); }
.n1, .c1 { left: 10%; top: 72.5%; } .n2, .c2 { left: 35%; top: 30%; } .n3, .c3 { left: 52%; top: 48%; } .n4, .c4 { left: 72%; top: 27.5%; } .n5, .c5 { left: 90%; top: 70%; }
.n5 { width: 220px; height: 220px; margin: -110px 0 0 -110px; }
.route__line { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.route__line path { fill: none; stroke: var(--red); stroke-width: 4; vector-effect: non-scaling-stroke; stroke-linecap: round; }
.route__line .car { stroke-dasharray: 2 9; stroke-width: 4; }
.route__line--tall { display: none; }
.code { position: absolute; z-index: 2; transform: translate(-50%, -50%); padding: 7px 11px; background: var(--w); color: var(--k); font: 700 14px/1 var(--disp); letter-spacing: .04em; }
.c3 { background: var(--red); color: var(--w); }
.route__codes { font: 600 clamp(18px, 1.9vw, 24px)/1.25 var(--disp); letter-spacing: -.01em; margin-bottom: 14px; }
.route__text { color: #dcdbd5; }
.route__note { margin-top: 16px; padding-top: 16px; border-top: 1px solid rgba(242,241,236,.25); color: var(--mute); font-size: 15.5px; }

/* ---------- Leistungen ---------- */
.services { padding-bottom: clamp(100px, 11vw, 160px); }
.zigzag {
  height: 96px; margin-bottom: clamp(90px, 10vw, 140px);
  background-color: var(--w);
  background-image:
    linear-gradient(135deg, var(--k) 25%, transparent 25%), linear-gradient(225deg, var(--k) 25%, transparent 25%),
    linear-gradient(315deg, var(--k) 25%, transparent 25%), linear-gradient(45deg, var(--k) 25%, transparent 25%);
  background-size: 32px 32px; background-position: -16px 0, -16px 0, 0 0, 0 0;
}
.sec-head--split { display: grid; grid-template-columns: 1fr 1fr; gap: 24px clamp(40px, 6vw, 96px); align-items: end; }
.sec-head--split .intro { margin-top: 0; }
.tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(44px, 5vw, 72px) clamp(28px, 3.4vw, 48px); margin-top: clamp(64px, 7vw, 100px); }
.tile { position: relative; }
.motif { display: block; height: 170px; margin-bottom: 26px; background-color: var(--w); overflow: hidden; transition: background-size .6s, background-position .6s; }
.tile__no { position: absolute; top: 12px; left: 12px; display: grid; place-items: center; min-width: 40px; height: 40px; padding: 0 8px; background: var(--k); color: var(--red-t); font: 700 14px/1 var(--disp); }
.tile h3 { font-size: 21px; line-height: 1.2; letter-spacing: -.01em; margin-bottom: 10px; }
.tile p { color: var(--mute); font-size: 16.5px; hyphens: auto; }
.motif--burst { background: repeating-conic-gradient(from 0deg at 70% 55%, var(--k) 0 4.5deg, var(--w) 4.5deg 9deg); }
.motif--rings { background: repeating-radial-gradient(circle at 28% 62%, var(--k) 0 6px, var(--w) 6px 12px); }
.motif--waves { background: var(--w) url("waves.svg") center / 140px 140px; }
.motif--zig {
  background-color: var(--w);
  background-image: linear-gradient(135deg, var(--k) 25%, transparent 25%), linear-gradient(225deg, var(--k) 25%, transparent 25%), linear-gradient(315deg, var(--k) 25%, transparent 25%), linear-gradient(45deg, var(--k) 25%, transparent 25%);
  background-size: 22px 22px; background-position: -11px 0, -11px 0, 0 0, 0 0;
}
.motif--nest { background: var(--w) url("nest.svg") center / cover no-repeat; }
.motif--check { background: var(--w) url("vega.svg") center / 260px 260px; }
@media (prefers-reduced-motion: no-preference) {
  .tile:hover .motif--burst { background-position: 0 0; transform: none; }
  .motif--burst, .motif--rings { transition: filter .3s; }
  .tile:hover .motif, .tile:focus-within .motif { filter: invert(1); }
}

/* ---------- Moiré ---------- */
.moire { position: relative; height: clamp(280px, 46vh, 460px); overflow: hidden; background: var(--k); --m: 34; }
.moire span { position: absolute; }
.moire__a, .moire__b { inset: -40% -10%; background: repeating-radial-gradient(circle at 50% 50%, var(--w) 0 1.6px, transparent 1.6px 7px); }
.moire__b { background: repeating-radial-gradient(circle at calc(50% + var(--m) * 1px) 50%, var(--w) 0 1.6px, transparent 1.6px 7px); mix-blend-mode: difference; }
.moire__dot { left: 50%; top: 50%; width: 22px; height: 22px; margin: -11px 0 0 -11px; border-radius: 50%; background: var(--red); box-shadow: 0 0 0 8px var(--k); }

/* ---------- Ablauf ---------- */
.process { padding-top: clamp(100px, 11vw, 160px); }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(28px, 3.4vw, 48px); margin-top: clamp(56px, 6vw, 90px); margin-bottom: clamp(90px, 10vw, 140px); }
.steps li { position: relative; padding-top: 30px; }
.steps__no { display: block; font: 800 clamp(70px, 7.4vw, 112px)/.9 var(--disp); color: transparent; -webkit-text-stroke: 2px var(--w); margin-bottom: 26px; letter-spacing: -.04em; }
.steps li:first-child .steps__no { color: var(--red); -webkit-text-stroke-color: var(--red); }
.steps li::before { content: ''; position: absolute; left: 0; right: 0; top: 0; height: 10px; background: repeating-linear-gradient(90deg, var(--w) 0 var(--sw, 2px), transparent var(--sw, 2px) 7px); }
.steps li:nth-child(2) { --sw: 3px; } .steps li:nth-child(3) { --sw: 4px; } .steps li:nth-child(4) { --sw: 5px; }
.steps h3 { font-size: 20px; margin-bottom: 8px; }
.steps p { color: var(--mute); font-size: 16.5px; hyphens: auto; }
.squares { height: clamp(110px, 12vw, 170px); background: var(--w) url("squares.svg") 0 0 / 100% 100% no-repeat; }

/* ---------- Über uns ---------- */
.about { padding-block: clamp(110px, 12vw, 170px); }
.about__in { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(40px, 7vw, 110px); align-items: center; }
.screen { margin: 0; }
.screen__img { position: relative; overflow: hidden; aspect-ratio: 1; background: #fff; filter: contrast(22); isolation: isolate; }
.screen__img img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(1) contrast(1.3) brightness(.47) blur(1.1px); }
.screen__img::after { content: ''; position: absolute; inset: 0; background: repeating-linear-gradient(180deg, #000 0, #7f7f7f 4.5px, #000 9px); mix-blend-mode: plus-lighter; }
.screen figcaption { display: flex; align-items: center; gap: 10px; margin-top: 16px; font: 500 12.5px/1.3 var(--sans); letter-spacing: .16em; text-transform: uppercase; color: var(--mute); }
.screen figcaption::before { content: ''; width: 10px; height: 10px; border-radius: 50%; background: var(--red); }
.about__txt h2 { font-size: clamp(30px, 3.6vw, 52px); line-height: 1.08; letter-spacing: -.02em; text-wrap: balance; }
.about__p { margin-top: 26px; font-size: 18.5px; color: #dcdbd5; max-width: 54ch; }
.feats { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 28px; margin-top: 36px; }
.feats li { display: flex; gap: 14px; align-items: center; font-weight: 500; }
.feats li::before { content: ''; flex: none; width: 26px; height: 26px; border-radius: 50%; background: repeating-radial-gradient(circle, var(--w) 0 1.5px, var(--k) 1.5px 4px); }

/* ---------- Kontakt ---------- */
.contact { padding-block: clamp(110px, 12vw, 170px); background: var(--k2); }
.contact__in { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(40px, 7vw, 110px); align-items: center; }
.contact__txt h2 { font-size: clamp(36px, 4.6vw, 66px); line-height: 1.04; letter-spacing: -.03em; }
.info { display: grid; grid-template-columns: 1fr 1fr; gap: 28px 40px; margin-top: 46px; }
.info div { padding-top: 16px; border-top: 1px solid rgba(242,241,236,.25); }
.info dt { font: 500 12px/1.2 var(--sans); letter-spacing: .2em; text-transform: uppercase; color: var(--red-t); margin-bottom: 8px; }
.info dd { font-size: 17px; line-height: 1.55; }
.info a { text-decoration: none; background: linear-gradient(var(--w), var(--w)) 0 100% / 100% 1px no-repeat; padding-bottom: 2px; }
.info a:hover { background-size: 100% 100%; color: var(--k); }
.dim { color: var(--mute); font-size: 15px; }
.tunnel { margin: 0; width: min(100%, 480px); justify-self: end; aspect-ratio: 1; }
.tunnel img { width: 100%; height: 100%; }

/* ---------- Fuß ---------- */
.foot { background: var(--k); color: var(--mute); }
.foot__stripes { height: 40px; background: repeating-linear-gradient(90deg, var(--w) 0 2px, transparent 2px 5px, var(--w) 5px 9px, transparent 9px 16px); opacity: .9; }
.foot__in { display: grid; grid-template-columns: auto 1fr auto; gap: 20px 40px; align-items: center; padding-block: 56px 48px; }
.foot__brand { font: 600 14px/1.3 var(--disp); color: var(--w); margin-bottom: 6px; }
.foot__addr p { font-size: 15px; }
.foot__addr a { white-space: nowrap; }
.foot__nav { display: flex; flex-wrap: wrap; gap: 8px 26px; }
.foot__nav a { font: 500 13px/1 var(--sans); letter-spacing: .14em; text-transform: uppercase; text-decoration: none; color: var(--w); padding: 8px 0; border-bottom: 2px solid transparent; }
.foot__nav a:hover, .foot__nav a:focus-visible { border-color: var(--red); }
.foot__copy { grid-column: 1 / -1; font-size: 13.5px; padding-top: 22px; border-top: 1px solid rgba(242,241,236,.15); }

/* ---------- Rechtsseiten ---------- */
.legal-band { height: clamp(90px, 10vw, 140px); background: var(--w) url("squares.svg") 0 0 / 100% 100% no-repeat; }
.legal { padding-block: 56px clamp(100px, 10vw, 150px); }
.back { display: inline-flex; align-items: center; gap: 10px; font: 500 13px/1 var(--sans); letter-spacing: .14em; text-transform: uppercase; text-decoration: none; color: var(--w); padding: 10px 0; border-bottom: 2px solid var(--red); }
.legal__head { margin: 48px 0 56px; max-width: 900px; }
.legal__head h1 { font-size: clamp(30px, 4.4vw, 58px); line-height: 1.08; letter-spacing: -.025em; overflow-wrap: anywhere; hyphens: auto; }
.legal-body { max-width: 68ch; font-size: 17px; line-height: 1.68; color: #e4e3dd; hyphens: auto; overflow-wrap: break-word; }
.legal-body h2 { font: 600 21px/1.25 var(--disp); color: var(--w); margin: 2.2em 0 .7em; padding-top: 18px; border-top: 1px solid rgba(242,241,236,.25); letter-spacing: -.01em; }
.legal-body h2:first-child { margin-top: 0; }
.legal-body p, .legal-body ul { margin: 0 0 1em; }
.legal-body ul { padding-left: 0; }
.legal-body li { position: relative; padding-left: 24px; margin-bottom: .4em; }
.legal-body li::before { content: ''; position: absolute; left: 0; top: .5em; width: 10px; height: 10px; border-radius: 50%; box-shadow: inset 0 0 0 2px var(--w); }
.legal-body a { color: var(--w); text-decoration-color: var(--red); text-decoration-thickness: 2px; text-underline-offset: 3px; }
.legal-body .legal-note { padding: 16px 20px; background: var(--w); color: var(--k); font-weight: 500; }
.legal-body .legal-note a { color: var(--k); }
.legal-body .legal-address { padding: 16px 20px; border-left: 6px solid var(--red); background: var(--k2); }

/* ---------- Responsiv ---------- */
@media (max-width: 1100px) {
  .hero { --cx: 35%; }
  .hero__box { width: min(400px, 38vw); padding: 26px 26px 24px; }
  .lead { font-size: 15.5px; }
  .nav { gap: 22px; }
  .nav__list { gap: 18px; }
  .nav__list a { letter-spacing: .1em; font-size: 12.5px; }
  .tel { font-size: 14px; }
  .cases { grid-template-columns: repeat(2, 1fr); }
  .tiles { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .route { grid-template-columns: 1fr; }
}
@media (max-width: 800px) {
  .menu { display: inline-flex; align-items: center; gap: 10px; margin-left: auto; padding: 12px 16px; background: var(--w); color: var(--k); border: 0; cursor: pointer; font: 600 14px/1 var(--disp); }
  .menu__ico { position: relative; width: 18px; height: 18px; border-radius: 50%; background: repeating-radial-gradient(circle, var(--k) 0 1.5px, var(--w) 1.5px 3.5px); }
  .top.open .menu__ico { background: var(--red); }
  .top__in { min-height: 68px; }
  .logo img { width: 54px; }
  .nav { display: none; position: absolute; left: 0; right: 0; top: calc(100% + 8px); flex-direction: column; align-items: stretch; gap: 26px; padding: 28px var(--pad) 36px; background: var(--k); border-bottom: 6px solid var(--red); }
  .js .top.open .nav { display: flex; }
  html:not(.js) .nav { display: flex; position: static; padding: 0 0 20px; border: 0; }
  html:not(.js) .top__in { flex-wrap: wrap; }
  .nav__list { flex-direction: column; gap: 4px; margin: 0; }
  .nav__list a { font: 600 26px/1.2 var(--disp); letter-spacing: -.01em; text-transform: none; }
  .nav__list a::before { left: auto; right: -18px; top: 50%; margin: -3.5px 0 0; }
  .tel { display: inline-block; }

  .hero { --R: min(44vw, 230px); --cx: 50%; --cy: calc(36px + var(--R)); height: auto; padding: calc(var(--R) * 2 + 72px) var(--pad) 64px; }
  .disc { padding: calc(var(--R) * .16); }
  .kicker { font-size: 10px; letter-spacing: .12em; }
  .hero h1 { font-size: calc(var(--R) * .128); }
  .hero__box { position: relative; right: auto; bottom: auto; width: 100%; padding: 28px 22px 24px; }
  .btn { width: 100%; }

  .focus__top { grid-template-columns: 1fr; }
  .vega { justify-self: start; width: min(100%, 340px); }
  .cases { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr; gap: 56px; }
  .route__map { height: 560px; }
  .route__line--wide { display: none; }
  .route__line--tall { display: block; }
  .n1, .c1 { left: 30%; top: 11.7%; } .n2, .c2 { left: 72.5%; top: 31.7%; } .n3, .c3 { left: 27.5%; top: 50%; } .n4, .c4 { left: 72.5%; top: 70%; } .n5, .c5 { left: 30%; top: 90%; }
  .node { width: 220px; height: 220px; margin: -110px 0 0 -110px; }
  .sec-head--split { grid-template-columns: 1fr; }
  .tiles { grid-template-columns: 1fr; }
  .about__in, .contact__in { grid-template-columns: 1fr; }
  .tunnel { justify-self: start; width: min(100%, 340px); }
  .info { grid-template-columns: 1fr; }
  .foot__in { grid-template-columns: 1fr; padding-bottom: 96px; }
}
@media (max-width: 520px) {
  .steps { grid-template-columns: 1fr; }
  .feats { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0s !important; animation: none !important; }
}