@font-face { font-family: 'Tanker'; src: url('fonts/tanker-400.woff2') format('woff2'); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: 'Satoshi'; src: url('fonts/satoshi-400.woff2') format('woff2'); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: 'Satoshi'; src: url('fonts/satoshi-500.woff2') format('woff2'); font-weight: 500; font-style: normal; font-display: swap; }
@font-face { font-family: 'Satoshi'; src: url('fonts/satoshi-700.woff2') format('woff2'); font-weight: 700; font-style: normal; font-display: swap; }

:root, [data-theme="light"] {
  --bg: #EFEDEA; --surface: #F8F7F5; --surface-2: #E6E3DF; --border: #D5D1CB;
  --text: #1E1E1E; --muted: #5C5B58; --faint: #8E8C88;
  --accent: #A82A1C; --accent-soft: #F3DFDB; --ink: #1E1E1E; --on-ink: #F4F2EF; --on-ink-muted: #ABA8A3;
  --plan-bg: #FFFFFF;
}
[data-theme="dark"] {
  --bg: #141414; --surface: #1B1B1B; --surface-2: #222222; --border: #323232;
  --text: #E9E7E3; --muted: #A5A29D; --faint: #6E6C69;
  --accent: #E2604D; --accent-soft: #3A1D19; --ink: #0D0D0D; --on-ink: #F4F2EF; --on-ink-muted: #A3A09B;
  --plan-bg: #F4F2EE;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --bg: #141414; --surface: #1B1B1B; --surface-2: #222222; --border: #323232;
    --text: #E9E7E3; --muted: #A5A29D; --faint: #6E6C69;
    --accent: #E2604D; --accent-soft: #3A1D19; --ink: #0D0D0D; --on-ink: #F4F2EF; --on-ink-muted: #A3A09B;
    --plan-bg: #F4F2EE;
  }
}
:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-hero: clamp(2.6rem, 0.8rem + 5.4vw, 6.25rem);
  --space-1: .25rem; --space-2: .5rem; --space-3: .75rem; --space-4: 1rem; --space-6: 1.5rem;
  --space-8: 2rem; --space-10: 2.5rem; --space-12: 3rem; --space-16: 4rem; --space-20: 5rem; --space-24: 6rem;
  --display: "Tanker", "Impact", "Arial Narrow", sans-serif;
  --body: "Satoshi", system-ui, -apple-system, "Segoe UI", sans-serif;
  --wrap: 1180px;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; animation: none !important; } }
body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--body); font-size: var(--text-base); line-height: 1.6; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; height: auto; }
a { color: inherit; }
.wrap { width: min(var(--wrap), 100% - 2 * clamp(var(--space-4), 5vw, var(--space-12))); margin-inline: auto; }
.num { font-variant-numeric: tabular-nums lining-nums; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }

/* Header */
.site-head { position: sticky; top: 0; z-index: 10; background: color-mix(in oklab, var(--ink) 92%, transparent); backdrop-filter: blur(10px); color: var(--on-ink); }
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); padding-block: var(--space-3); }
.brand { display: flex; align-items: center; gap: var(--space-3); text-decoration: none; font-weight: 700; font-size: var(--text-sm); letter-spacing: .01em; }
.brand svg { width: 28px; height: 28px; color: #D23B28; flex: none; }
.head-right { display: flex; align-items: center; gap: var(--space-4); }
.head-nav { display: flex; gap: var(--space-6); font-size: var(--text-sm); }
.head-nav a { text-decoration: none; color: var(--on-ink-muted); }
.head-nav a:hover { color: var(--on-ink); }
.theme-toggle { background: transparent; border: 1px solid rgba(255,255,255,.2); color: var(--on-ink); width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; cursor: pointer; }
.theme-toggle svg { width: 16px; height: 16px; }
@media (max-width: 760px) { .head-nav { display: none; } }

/* Hero */
.hero { background: var(--ink); color: var(--on-ink); padding-block: clamp(var(--space-12), 9vw, var(--space-24)) clamp(var(--space-10), 6vw, var(--space-16)); position: relative; overflow: hidden; }
.hero::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 6px; background: #B42E20; }
.eyebrow { max-width: none; display: flex; flex-wrap: wrap; gap: var(--space-2) var(--space-4); font-size: var(--text-xs); letter-spacing: .14em; text-transform: uppercase; color: #E8897B; font-weight: 500; margin: 0 0 var(--space-6); }
.eyebrow span { white-space: nowrap; }
.eyebrow span + span { border-left: 1px solid rgba(255,255,255,.25); padding-left: var(--space-4); }
@media (max-width: 520px) { .eyebrow { flex-direction: column; gap: var(--space-1); } .eyebrow span + span { border: 0; padding: 0; } }
.hero h1 { font-family: var(--display); font-weight: 400; font-size: var(--text-hero); line-height: .98; letter-spacing: -0.02em; margin: 0; max-width: 14ch; }
.hero h1 em { font-style: normal; color: #D23B28; }
.hero-sub { margin: var(--space-6) 0 0; font-size: var(--text-lg); color: var(--on-ink-muted); max-width: 46ch; line-height: 1.45; }
.hero-cta { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-10); }
.btn { display: inline-flex; align-items: center; gap: var(--space-2); padding: var(--space-3) var(--space-6); border-radius: 999px; font-weight: 700; font-size: var(--text-sm); text-decoration: none; transition: background .2s, color .2s, border-color .2s; }
.btn-primary { background: #B42E20; color: #FFFFFF; }
.btn-primary:hover { background: #C83A2A; }
.btn-ghost { border: 1px solid rgba(255,255,255,.28); color: var(--on-ink); }
.btn-ghost:hover { border-color: var(--on-ink); }
.hero-mark { position: absolute; right: clamp(-40px, 2vw, 40px); bottom: 6px; width: clamp(200px, 32vw, 440px); color: transparent; pointer-events: none; }
@media (max-width: 700px) { .hero-mark { opacity: .5; } }

/* KPIs */
.kpis { background: var(--surface); border-bottom: 1px solid var(--border); }
.kpi-grid { display: grid; grid-template-columns: repeat(5, 1fr); }
.kpi { padding: var(--space-8) var(--space-4) var(--space-8) var(--space-6); border-left: 1px solid var(--border); }
.kpi:first-child { border-left: 0; padding-left: 0; }
.kpi b { display: block; font-family: var(--display); font-weight: 400; font-size: var(--text-xl); line-height: 1.1; color: var(--text); }
.kpi:nth-child(-n+2) b { color: var(--accent); }
.kpi span { display: block; margin-top: var(--space-2); font-size: var(--text-xs); color: var(--muted); }
@media (max-width: 860px) {
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .kpi { border-left: 0; border-top: 1px solid var(--border); padding: var(--space-6) var(--space-4) var(--space-6) 0; }
  .kpi:nth-child(-n+2) { border-top: 0; }
  .kpi:last-child { grid-column: span 2; }
}

/* Sections */
section { padding-block: clamp(var(--space-12), 8vw, var(--space-24)); }
.label { font-size: var(--text-xs); letter-spacing: .14em; text-transform: uppercase; color: var(--accent); font-weight: 700; margin: 0 0 var(--space-3); }
h2 { font-family: var(--display); font-weight: 400; font-size: var(--text-2xl); line-height: 1.05; letter-spacing: -0.015em; margin: 0 0 var(--space-6); max-width: 20ch; }
h3 { font-size: var(--text-lg); font-weight: 700; margin: 0 0 var(--space-3); line-height: 1.3; }
p { margin: 0 0 var(--space-4); max-width: 65ch; }
.muted { color: var(--muted); }

.split { display: grid; grid-template-columns: 5fr 7fr; gap: clamp(var(--space-8), 5vw, var(--space-16)); align-items: start; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; } }
.facts { list-style: none; padding: 0; margin: var(--space-6) 0 0; border-top: 1px solid var(--border); }
.facts li { display: grid; grid-template-columns: 1.2rem 1fr; gap: var(--space-3); padding: var(--space-3) 0; border-bottom: 1px solid var(--border); font-size: var(--text-sm); }
.facts li::before { content: ""; width: 8px; height: 8px; margin-top: .55em; background: var(--accent); }

figure { margin: 0; }
.plan { background: var(--plan-bg); border: 1px solid var(--border); border-radius: 6px; padding: var(--space-4); }
figcaption { font-size: var(--text-xs); color: var(--muted); margin-top: var(--space-3); }

.band { background: var(--surface); border-block: 1px solid var(--border); }
.elev { background: var(--plan-bg); border: 1px solid var(--border); border-radius: 6px; padding: var(--space-6) var(--space-4) var(--space-4); }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); margin-top: var(--space-10); }
@media (max-width: 900px) { .cards { grid-template-columns: 1fr; } }
.card { background: var(--bg); border: 1px solid var(--border); border-radius: 6px; padding: var(--space-8) var(--space-6); }
.card .big { font-family: var(--display); font-weight: 400; font-size: var(--text-xl); color: var(--accent); line-height: 1.1; margin-bottom: var(--space-2); }
.card p { font-size: var(--text-sm); color: var(--muted); margin: 0; }
sup a { color: var(--accent); text-decoration: none; font-size: .75em; }

/* Process */
.steps { list-style: none; padding: 0; margin: var(--space-10) 0 0; display: grid; grid-template-columns: repeat(4, 1fr); counter-reset: s; border-top: 2px solid var(--text); }
.steps li { counter-increment: s; padding: var(--space-6) var(--space-6) 0 0; }
.steps li::before { content: "0" counter(s); display: block; font-family: var(--display); font-weight: 400; font-size: var(--text-lg); color: var(--accent); margin-bottom: var(--space-2); }
.steps h3 { font-size: var(--text-base); margin-bottom: var(--space-1); }
.steps p { font-size: var(--text-sm); color: var(--muted); margin: 0; }
@media (max-width: 860px) { .steps { grid-template-columns: 1fr 1fr; row-gap: var(--space-6); } }
@media (max-width: 520px) { .steps { grid-template-columns: 1fr; } }

/* Contact */
.contact { background: var(--ink); color: var(--on-ink); }
.contact h2 { color: var(--on-ink); }
.contact .label { color: #E8897B; }
.contact-grid { display: grid; grid-template-columns: 7fr 5fr; gap: var(--space-12); align-items: end; }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; gap: var(--space-8); } }
.contact p { color: var(--on-ink-muted); }
.contact-card { border: 1px solid rgba(255,255,255,.16); border-radius: 6px; padding: var(--space-8); }
.contact-card dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: var(--space-2) var(--space-6); font-size: var(--text-sm); }
.contact-card dt { color: var(--on-ink-muted); }
.contact-card dd { margin: 0; font-weight: 500; }
.contact-card .btn { margin-top: var(--space-6); }

footer { padding-block: var(--space-10); font-size: var(--text-xs); color: var(--muted); }
footer p { max-width: none; margin-bottom: var(--space-2); }
footer a { color: var(--accent); word-break: break-all; }

/* Übersicht & Rechtstexte */
.head-nav a[aria-current="page"] { color: var(--on-ink); }
.hero-compact { padding-block: clamp(var(--space-12), 7vw, var(--space-20)) clamp(var(--space-10), 5vw, var(--space-16)); }
.hero-compact h1 { font-size: var(--text-2xl); max-width: 22ch; }
.projects { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: var(--space-6); }
.project { display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--border); border-radius: 6px; overflow: hidden; text-decoration: none; transition: border-color .2s, transform .2s; }
.project:hover { border-color: var(--accent); transform: translateY(-2px); }
.project-img { background: var(--plan-bg); aspect-ratio: 16 / 10; overflow: hidden; border-bottom: 1px solid var(--border); }
.project-img img { width: 100%; height: 100%; object-fit: cover; }
.project-body { padding: var(--space-6); display: flex; flex-direction: column; gap: var(--space-2); flex: 1; }
.project-tag { align-self: flex-start; font-size: var(--text-xs); font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--accent); background: var(--accent-soft); padding: var(--space-1) var(--space-3); border-radius: 999px; }
.project h2 { font-size: var(--text-lg); margin: var(--space-2) 0 0; max-width: none; }
.project p { font-size: var(--text-sm); color: var(--muted); margin: 0; }
.project-facts { display: flex; flex-wrap: wrap; gap: var(--space-2) var(--space-6); margin-top: auto; padding-top: var(--space-4); font-size: var(--text-sm); font-weight: 700; }
.legal { max-width: 72ch; }
.legal h2 { font-size: var(--text-xl); margin-top: var(--space-10); max-width: none; }
.legal h3 { font-size: var(--text-base); margin-top: var(--space-6); }
.legal p, .legal li { font-size: var(--text-base); }
.todo { background: var(--accent-soft); padding: 0 var(--space-1); border-radius: 2px; }
.foot-links { display: flex; gap: var(--space-6); margin-bottom: var(--space-4); font-size: var(--text-sm); }
.foot-links a { color: var(--text); word-break: normal; }

/* Logo-Stil: Kreide-/Betontextur, Versalien */
.brand img { height: 30px; width: auto; display: block; }
.hero, .contact, .site-head { position: relative; isolation: isolate; }
.hero::before, .contact::before { content: ""; position: absolute; inset: 0; z-index: -1; opacity: .16; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 1.1 -.35'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }
.hero .wrap, .contact .wrap { position: relative; z-index: 1; }
.hero h1, h2, .steps li::before { text-transform: uppercase; letter-spacing: .01em; }
.hero h1 { line-height: .95; max-width: 16ch; }
h2 { line-height: 1; }
.project h2 { font-family: var(--body); font-weight: 700; text-transform: none; letter-spacing: 0; line-height: 1.25; }
img.hero-mark { position: absolute; right: clamp(-60px, 1vw, 40px); bottom: clamp(12px, 3vw, 40px); width: clamp(180px, 28vw, 380px); height: auto; opacity: .22; z-index: 0; pointer-events: none; }
@media (max-width: 700px) { img.hero-mark { opacity: .12; } }
.label { letter-spacing: .16em; }
.label::before { content: ""; display: inline-block; width: 18px; height: 3px; background: currentColor; vertical-align: middle; margin-right: var(--space-2); transform: translateY(-1px); }
.kpi:nth-child(-n+2) b, .card .big { color: var(--accent); }
.steps { border-top-color: var(--accent); }
.facts li::before { transform: skewX(-12deg); }
.btn { border-radius: 2px; text-transform: uppercase; letter-spacing: .06em; }
.project, .card, .plan, .elev, .contact-card { border-radius: 2px; }
.project-tag { border-radius: 2px; }
@media (max-width: 420px) { .brand img { height: 22px; } }
.kpi b, .card .big { font-family: var(--body); font-weight: 700; letter-spacing: -0.01em; }

/* Varianten-Umschalter & Flächentabelle */
.variants { margin-top: var(--space-8); max-width: 760px; }
.variant-tabs { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-bottom: var(--space-4); }
.variant-tabs button { font: inherit; font-size: var(--text-sm); font-weight: 700; letter-spacing: .04em; text-transform: uppercase; padding: var(--space-2) var(--space-4); border: 1px solid var(--border); background: var(--bg); color: var(--text); border-radius: 2px; cursor: pointer; transition: background .2s, color .2s, border-color .2s; }
.variant-tabs button:hover { border-color: var(--accent); }
.variant-tabs button[aria-selected="true"] { background: var(--accent); border-color: var(--accent); color: #fff; }
.variant-panel .plan img { width: 100%; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: var(--text-sm); }
th, td { text-align: left; padding: var(--space-3) var(--space-3); border-bottom: 1px solid var(--border); white-space: nowrap; }
thead th { font-size: var(--text-xs); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); font-weight: 700; border-bottom: 2px solid var(--accent); }
tbody th { font-weight: 700; }
tfoot th, tfoot td { font-weight: 700; border-bottom: 0; padding-top: var(--space-4); }
td:nth-child(2) { font-weight: 700; }

/* Röhrensee: breite Planansicht & Leitsatz */
.variants-wide { max-width: none; }
.statement { background: var(--surface); border-top: 1px solid var(--border); }
.statement-text { font-family: var(--display); font-weight: 400; text-transform: uppercase; font-size: var(--text-2xl); line-height: 1.05; letter-spacing: .01em; max-width: 24ch; margin: 0; }
.statement-text span { color: var(--accent); }