/* ==========================================================================
   CAD Experten GmbH – Website (Entwurf)
   Richtung A „Präzise & Hell" mit einem Hauch von D „Gewerke-Farben".
   Ruhige, helle Fläche, feine Linien statt Kästen, CAD-Pläne als
   Hintergrundebene. Gewerke-Farben nur als Linie und Punkt.
   ========================================================================== */

/* ---------- 0. Schriften (lokal, SIL Open Font License) ---------- */
@font-face { font-family: "Manrope"; font-style: normal; font-display: swap; font-weight: 200 800; src: url("/assets/fonts/manrope-latin-wght-normal.woff2") format("woff2"); unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }
@font-face { font-family: "Manrope"; font-style: normal; font-display: swap; font-weight: 200 800; src: url("/assets/fonts/manrope-latin-ext-wght-normal.woff2") format("woff2"); unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF; }
@font-face { font-family: "IBM Plex Mono"; font-style: normal; font-display: swap; font-weight: 400; src: url("/assets/fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2"); unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }
@font-face { font-family: "IBM Plex Mono"; font-style: normal; font-display: swap; font-weight: 400; src: url("/assets/fonts/ibm-plex-mono-latin-ext-400-normal.woff2") format("woff2"); unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF; }
@font-face { font-family: "IBM Plex Mono"; font-style: normal; font-display: swap; font-weight: 500; src: url("/assets/fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2"); unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }
@font-face { font-family: "IBM Plex Mono"; font-style: normal; font-display: swap; font-weight: 500; src: url("/assets/fonts/ibm-plex-mono-latin-ext-500-normal.woff2") format("woff2"); unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF; }

/* ---------- 1. Design Tokens ---------- */
:root {
  --bg: #FBFBFA;
  --bg-2: #F3F4F5;
  --surface: #FFFFFF;
  --ink: #16202C;
  --ink-2: #4A525E;
  --ink-3: #868D97;
  --line: #E2E4E8;
  --line-strong: #C9CDD4;
  --brand: #39526E;      /* Logo-Blau */
  --brand-deep: #263A51;
  --brand-grey: #4B4B4D; /* Logo-Grau */
  --plan: #39526E;

  /* Gewerke – gedeckt, nur als Akzent */
  --t-heiz: #C0544B;
  --t-luft: #3E8E6E;
  --t-san: #3D74B0;
  --t-elek: #C08F27;
  --t-spr: #8A68AA;

  --font: "Manrope", "Avenir Next", "Segoe UI", system-ui, sans-serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  --fs-xs: 0.76rem;
  --fs-sm: 0.92rem;
  --fs-md: 1.02rem;
  --fs-lg: 1.16rem;
  --fs-xl: clamp(1.3rem, 1.1rem + 0.8vw, 1.6rem);
  --fs-2xl: clamp(1.9rem, 1.3rem + 2.2vw, 2.9rem);
  --fs-3xl: clamp(2.6rem, 1.5rem + 4.2vw, 4.8rem);
  --container: 1200px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --header-h: 84px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  color-scheme: light;
}

/* ---------- 2. Basis ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--header-h) + 8px); }
body { margin: 0; font-family: var(--font); font-size: var(--fs-md); line-height: 1.7; color: var(--ink); background: var(--bg); overflow-x: hidden; -webkit-font-smoothing: antialiased; }
h1, h2, h3 { font-weight: 400; line-height: 1.12; letter-spacing: -0.015em; margin: 0 0 0.6em; text-wrap: balance; color: var(--ink); }
h1 { font-size: var(--fs-3xl); font-weight: 300; letter-spacing: -0.03em; line-height: 1.04; }
h2 { font-size: var(--fs-2xl); font-weight: 300; letter-spacing: -0.02em; }
h3 { font-size: 1.08rem; font-weight: 500; letter-spacing: 0; }
h1 em, h2 em { font-style: normal; font-weight: 500; }
p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }
a { color: inherit; text-decoration: none; }
ul, ol, dl, dd { margin: 0; padding: 0; list-style: none; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; cursor: pointer; }
:focus-visible { outline: 1.5px solid var(--ink); outline-offset: 4px; border-radius: 2px; }
.container { width: min(100% - 2 * var(--gutter), var(--container)); margin-inline: auto; }
.section { position: relative; padding-block: clamp(5rem, 10vw, 9rem); }
.section-alt { background: var(--bg-2); }
.section-head { max-width: 48rem; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.section-head--split { max-width: none; display: flex; align-items: flex-end; justify-content: space-between; gap: 2rem; }
.section-head h2 { margin: 0; }
.lead { font-size: var(--fs-lg); font-weight: 300; color: var(--ink-2); max-width: 36rem; }
.muted { color: var(--ink-3); }
.skip-link { position: absolute; left: -999px; top: 8px; z-index: 200; padding: 0.6rem 1rem; background: var(--ink); color: #fff; }
.skip-link:focus { left: 8px; }

/* Eyebrow mit Maßlinien-Strich */
.eyebrow { display: flex; align-items: center; gap: 0.8rem; margin-bottom: 1.3rem; font-family: var(--mono); font-size: var(--fs-xs); font-weight: 400; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-3); }
.eyebrow-tick { position: relative; width: 28px; height: 1px; background: currentColor; flex: none; }
.eyebrow-tick::before, .eyebrow-tick::after { content: ""; position: absolute; top: -4px; width: 1px; height: 9px; background: currentColor; }
.eyebrow-tick::before { left: 0; }
.eyebrow-tick::after { right: 0; }
.eyebrow--light { color: rgba(255, 255, 255, 0.6); }

/* ---------- 3. Buttons & Links ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; padding: 0.95rem 1.7rem; border-radius: 999px; border: 1px solid var(--ink); font-family: var(--font); font-size: var(--fs-sm); font-weight: 500; letter-spacing: 0.03em; white-space: nowrap; transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), background 0.3s, color 0.3s, border-color 0.3s; }
.btn-primary { background: var(--brand-deep); border-color: var(--brand-deep); color: #fff; }
.btn-primary:hover { background: var(--brand); border-color: var(--brand); transform: translateY(-2px); box-shadow: 0 12px 28px rgba(19, 26, 36, 0.18); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn-ghost:hover { border-color: var(--ink); transform: translateY(-2px); }
.btn-light { background: #fff; color: var(--ink); border-color: #fff; }
.btn-light:hover { background: #EEF0F3; transform: translateY(-2px); }
.btn-ghost-light { background: transparent; color: #fff; border-color: rgba(255, 255, 255, 0.35); }
.btn-ghost-light:hover { border-color: #fff; transform: translateY(-2px); }
.btn-sm { padding: 0.62rem 1.2rem; font-size: var(--fs-xs); }
.text-link { position: relative; font-size: var(--fs-sm); font-weight: 500; padding-bottom: 4px; white-space: nowrap; }
.text-link::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: currentColor; transform-origin: right; transition: transform 0.5s var(--ease); }
.text-link:hover::after { transform: scaleX(0.4); }

/* ---------- 4. Header ---------- */
.site-header { position: fixed; inset: 0 0 auto 0; z-index: 100; height: var(--header-h); border-bottom: 1px solid transparent; transition: border-color 0.4s; }
/* Blur auf ::before, damit das fixierte Mobilmenü nicht beschnitten wird */
.site-header::before { content: ""; position: absolute; inset: 0; z-index: -1; background: rgba(251, 251, 250, 0.86); -webkit-backdrop-filter: blur(18px) saturate(1.2); backdrop-filter: blur(18px) saturate(1.2); opacity: 0; transition: opacity 0.4s; pointer-events: none; }
.site-header.is-scrolled::before, body.nav-open .site-header::before { opacity: 1; }
.site-header.is-scrolled { border-bottom-color: var(--line); }
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }
.brand { display: inline-flex; align-items: center; gap: 0.75rem; color: var(--brand); flex: none; }
.brand-signet { width: 38px; height: 38px; fill: var(--brand); flex: none; transition: transform 0.8s var(--ease); }
.brand:hover .brand-signet { transform: rotate(-12deg); }
.brand-word { display: flex; flex-direction: column; line-height: 1; }
.brand-cad { font-size: 1.32rem; font-weight: 600; letter-spacing: 0.14em; color: var(--brand); }
.brand-exp { margin-top: 4px; font-size: 0.6rem; font-weight: 500; letter-spacing: 0.47em; text-transform: uppercase; color: var(--brand-grey); }
.main-nav { display: flex; align-items: center; gap: 1.5rem; }
.nav-list { display: flex; align-items: center; gap: 0.2rem; }
.nav-link { position: relative; display: inline-block; padding: 0.4rem 0.7rem; font-size: 0.88rem; font-weight: 500; color: var(--ink-2); transition: color 0.25s; }
.nav-link::after { content: ""; position: absolute; left: 0.7rem; right: 0.7rem; bottom: 0.15rem; height: 1px; background: var(--ink); transform: scaleX(0); transform-origin: left; transition: transform 0.4s var(--ease); }
.nav-link:hover, .nav-link.is-active { color: var(--ink); }
.nav-link:hover::after, .nav-link.is-active::after { transform: scaleX(1); }
.nav-phone { font-family: var(--mono); font-size: 0.8rem; color: var(--ink-2); white-space: nowrap; }
.nav-phone:hover { color: var(--ink); }
.header-actions { display: flex; align-items: center; gap: 0.8rem; }
.nav-toggle { display: none; width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--line-strong); background: rgba(255, 255, 255, 0.85); flex-direction: column; align-items: center; justify-content: center; gap: 5px; }
.nav-toggle span { width: 18px; height: 1.5px; background: var(--ink); transition: transform 0.35s var(--ease); }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(3.25px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { transform: translateY(-3.25px) rotate(-45deg); }

/* ---------- 5. Hero ---------- */
.hero { position: relative; min-height: min(100vh, 920px); display: flex; align-items: center; padding-top: calc(var(--header-h) + clamp(2.5rem, 6vw, 5rem)); padding-bottom: clamp(3.5rem, 7vw, 6rem); overflow: hidden; }
.hero-drawing { position: absolute; inset: 0 0 0 38%; color: var(--plan); pointer-events: none; -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 30%, #000 88%, transparent 100%), linear-gradient(180deg, transparent 6%, #000 24%, #000 78%, transparent 100%); -webkit-mask-composite: source-in; mask-image: linear-gradient(90deg, transparent 0%, #000 30%, #000 88%, transparent 100%), linear-gradient(180deg, transparent 6%, #000 24%, #000 78%, transparent 100%); mask-composite: intersect; }
.plan { width: 100%; height: 100%; }
.plan-axes, .plan-dims, .plan-text { opacity: 0.22; }
.plan-walls { opacity: 0.34; }
.plan-detail { opacity: 0.24; }
.plan-trades { opacity: 0.42; }
.t-heiz { stroke: var(--t-heiz); }
.t-luft { stroke: var(--t-luft); }
.t-san { stroke: var(--t-san); }
.t-elek { stroke: var(--t-elek); }

/* Linien zeichnen sich auf */
.js .plan .draw { stroke-dasharray: 1; stroke-dashoffset: 1; animation: draw 2.6s var(--ease) 0.2s forwards; }
.js .plan-axes, .js .plan-dims, .js .plan-text, .js .plan-detail { animation: fadeTo 1.6s ease 1.1s both; }
.js .plan-trades { animation: fadeTrades 1.6s ease 1.9s both; }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes fadeTo { from { opacity: 0; } }
@keyframes fadeTrades { from { opacity: 0; } }

.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.25fr 0.75fr; gap: clamp(2rem, 6vw, 6rem); align-items: end; }
.hero-copy h1 { margin-bottom: 1.5rem; max-width: 11.5ch; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2.2rem; }
.trade-line { display: flex; flex-wrap: wrap; gap: 0.5rem 1.6rem; margin-top: 2.8rem; padding-top: 1.3rem; border-top: 1px solid var(--line-strong); max-width: 36rem; }
.trade-line li { display: inline-flex; align-items: center; gap: 0.55rem; font-family: var(--mono); font-size: var(--fs-xs); letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-2); }
.trade-line li::before { content: ""; width: 14px; height: 2px; background: var(--c); flex: none; }

/* Schriftfeld (CAD-Titelblock) */
.title-block { align-self: end; background: rgba(255, 255, 255, 0.72); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px); border: 1px solid var(--ink); font-size: var(--fs-sm); }
.tb-head { display: flex; justify-content: space-between; padding: 0.55rem 1rem; border-bottom: 1px solid var(--ink); font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-2); }
.title-block dl > div { display: grid; grid-template-columns: 6.5rem 1fr; border-bottom: 1px solid var(--line-strong); }
.title-block dl > div:last-child { border-bottom: 0; }
.title-block dt { padding: 0.75rem 1rem; border-right: 1px solid var(--line-strong); font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); }
.title-block dd { padding: 0.7rem 1rem; font-weight: 500; line-height: 1.45; }

/* ---------- 6. Haltung ---------- */
.intro { border-top: 1px solid var(--line); }
.statement { max-width: 22em; font-size: clamp(1.7rem, 1.2rem + 2vw, 2.6rem); font-weight: 300; line-height: 1.22; margin-bottom: clamp(3rem, 6vw, 5rem); }
.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1.5rem, 4vw, 3.5rem); }
.principles li { padding-top: 1.4rem; border-top: 1px solid var(--ink); }
.principle-num { display: block; margin-bottom: 1.4rem; font-family: var(--mono); font-size: var(--fs-xs); color: var(--ink-3); }
.principles h3 { margin-bottom: 0.4rem; }
.principles p { font-size: var(--fs-sm); color: var(--ink-2); max-width: 30ch; }

/* ---------- 7. Leistungen als Liste ---------- */
.service-list { border-top: 1px solid var(--ink); counter-reset: s; }
.service-list li { border-bottom: 1px solid var(--line-strong); }
.service-list a { position: relative; display: grid; grid-template-columns: 4.5rem minmax(14rem, 1fr) 1.3fr 2.5rem; align-items: baseline; gap: 1.5rem; padding: 1.55rem 0; transition: padding 0.5s var(--ease); }
.service-list a::before { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px; background: var(--ink); transform: scaleX(0); transform-origin: left; transition: transform 0.7s var(--ease); }
.service-list a:hover { padding-left: 0.6rem; }
.service-list a:hover::before { transform: scaleX(1); }
.sl-num { font-family: var(--mono); font-size: var(--fs-xs); color: var(--ink-3); }
.sl-title { font-size: var(--fs-xl); font-weight: 400; letter-spacing: -0.01em; }
.sl-text { font-size: var(--fs-sm); color: var(--ink-2); }
.sl-arrow, .pl-arrow { position: relative; justify-self: end; align-self: center; width: 22px; height: 1px; background: var(--ink-3); transition: width 0.5s var(--ease), background 0.3s; }
.sl-arrow::after, .pl-arrow::after { content: ""; position: absolute; right: 0; top: -4px; width: 8px; height: 8px; border-top: 1px solid currentColor; border-right: 1px solid currentColor; color: var(--ink-3); transform: rotate(45deg); transform-origin: center; transition: color 0.3s; }
.service-list a:hover .sl-arrow, .project-list a:hover .pl-arrow { width: 36px; background: var(--ink); }
.service-list a:hover .sl-arrow::after, .project-list a:hover .pl-arrow::after { color: var(--ink); }

/* ---------- 8. Gewerke (Schnitt) ---------- */
.gewerke-inner { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: clamp(2rem, 6vw, 5.5rem); align-items: center; }
.trade-list { margin-top: 2.2rem; border-top: 1px solid var(--ink); }
.trade-list li { border-bottom: 1px solid var(--line-strong); }
.trade-list button { width: 100%; display: grid; grid-template-columns: 1.4rem 1fr; column-gap: 0.6rem; padding: 0.95rem 0; background: none; border: 0; text-align: left; transition: padding 0.4s var(--ease); }
.trade-list button::before { content: ""; grid-row: 1 / 3; align-self: center; width: 14px; height: 2px; background: var(--c); transition: width 0.4s var(--ease), height 0.3s; }
.tl-name { font-weight: 500; }
.tl-text { grid-column: 2; font-size: var(--fs-sm); color: var(--ink-3); transition: color 0.3s; }
.trade-list button:hover, .trade-list button.is-active { padding-left: 0.4rem; }
.trade-list button:hover::before, .trade-list button.is-active::before { width: 22px; height: 3px; }
.trade-list button:hover .tl-text, .trade-list button.is-active .tl-text { color: var(--ink-2); }

.section-drawing { margin: 0; }
.schnitt { width: 100%; height: auto; color: var(--plan); overflow: visible; }
.s-struct { opacity: 0.4; }
.s-text { opacity: 0.55; }
.schnitt .trade { stroke-width: 2; opacity: 0.55; transition: opacity 0.5s var(--ease), stroke-width 0.4s; }
.schnitt [data-trade="heiz"] { stroke: var(--t-heiz); }
.schnitt [data-trade="luft"] { stroke: var(--t-luft); }
.schnitt [data-trade="san"] { stroke: var(--t-san); }
.schnitt [data-trade="elek"] { stroke: var(--t-elek); }
.schnitt [data-trade="spr"] { stroke: var(--t-spr); }
.schnitt.has-focus .trade { opacity: 0.1; }
.schnitt.has-focus .trade.is-focus { opacity: 1; stroke-width: 2.6; }
.section-drawing figcaption { margin-top: 1rem; padding-top: 0.8rem; border-top: 1px solid var(--line-strong); font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); }

/* ---------- 9. Projekte als Liste ---------- */
.project-list { border-top: 1px solid var(--ink); }
.project-list li { border-bottom: 1px solid var(--line-strong); }
.project-list a { position: relative; display: grid; grid-template-columns: 11rem 1fr 9rem 2.5rem; align-items: baseline; gap: 1.5rem; padding: 1.7rem 0; transition: padding 0.5s var(--ease); }
.project-list a::before { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px; background: var(--ink); transform: scaleX(0); transform-origin: left; transition: transform 0.7s var(--ease); }
.project-list a:hover { padding-left: 0.6rem; }
.project-list a:hover::before { transform: scaleX(1); }
.pl-cat, .pl-meta { font-family: var(--mono); font-size: var(--fs-xs); letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); }
.pl-title { font-size: var(--fs-xl); font-weight: 300; letter-spacing: -0.01em; }

/* ---------- 10. Philosophie / Zitat ---------- */
.quote { overflow: hidden; }
.quote-drawing { position: absolute; right: -6%; top: 50%; width: min(70vw, 980px); height: auto; aspect-ratio: 12 / 7; transform: translateY(-50%); color: var(--plan); opacity: 0.12; pointer-events: none; }
.quote .container { position: relative; }
.quote blockquote { margin: 0; max-width: 54rem; }
.quote blockquote p { font-size: clamp(2rem, 1.3rem + 3vw, 3.6rem); font-weight: 300; line-height: 1.12; letter-spacing: -0.025em; text-wrap: balance; }
.quote blockquote footer { margin-top: 1.5rem; font-family: var(--mono); font-size: var(--fs-xs); letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-3); }
.quote-text { margin-top: clamp(2.5rem, 5vw, 4rem); max-width: 34rem; color: var(--ink-2); }

/* ---------- 11. Standorte & Karriere ---------- */
.places-inner { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(3rem, 8vw, 8rem); align-items: start; }
.places h2 { margin-bottom: 2rem; }
.city-list { border-top: 1px solid var(--ink); }
.city-list li { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; padding: 1rem 0; border-bottom: 1px solid var(--line-strong); }
.city { font-size: var(--fs-xl); font-weight: 300; }
.city-note { font-family: var(--mono); font-size: var(--fs-xs); letter-spacing: 0.08em; color: var(--ink-3); text-align: right; }
.career { padding-left: clamp(0rem, 4vw, 4rem); border-left: 1px solid var(--line-strong); }
.career .lead { margin-bottom: 2rem; }

/* ---------- 12. Kontakt ---------- */
.contact { position: relative; overflow: hidden; padding-block: clamp(5rem, 10vw, 8.5rem); background: var(--brand-deep); color: #fff; }
.contact-drawing { position: absolute; left: -8%; bottom: -12%; width: min(80vw, 1100px); height: auto; aspect-ratio: 12 / 7; color: #9FB6D4; opacity: 0.14; pointer-events: none; }
.contact-inner { position: relative; display: grid; grid-template-columns: 1.2fr 0.8fr; gap: clamp(2.5rem, 6vw, 6rem); align-items: end; }
.contact h2 { color: #fff; margin: 0; max-width: 12em; }
.contact-facts { border-top: 1px solid rgba(255, 255, 255, 0.5); }
.contact-facts > div { display: grid; grid-template-columns: 6.5rem 1fr; gap: 1rem; padding: 0.9rem 0; border-bottom: 1px solid rgba(255, 255, 255, 0.14); }
.contact-facts dt { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: rgba(255, 255, 255, 0.5); padding-top: 0.2rem; }
.contact-facts dd { color: rgba(255, 255, 255, 0.92); }
.contact-facts a:hover { color: #fff; text-decoration: underline; text-underline-offset: 4px; }

/* ---------- 13. Footer ---------- */
.site-footer { padding-block: clamp(3.5rem, 6vw, 5rem) 2rem; background: var(--bg); border-top: 1px solid var(--line); font-size: var(--fs-sm); }
.footer-grid { display: grid; grid-template-columns: 1.2fr 1fr 1.2fr 0.8fr; gap: 2.5rem; padding-bottom: 3rem; }
.footer-brand p { margin-top: 1.4rem; color: var(--ink-3); line-height: 1.6; }
.footer-head { margin-bottom: 1rem; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); }
.footer-grid ul { display: flex; flex-direction: column; gap: 0.45rem; }
.footer-grid a { color: var(--ink-2); transition: color 0.25s; }
.footer-grid a:hover { color: var(--ink); }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; padding-top: 1.5rem; border-top: 1px solid var(--line); font-size: var(--fs-xs); color: var(--ink-3); }
.footer-bottom p { margin: 0; }
.footer-bottom ul { display: flex; gap: 1.4rem; }
.footer-bottom a:hover { color: var(--ink); }

/* ---------- 13b. Untermenü Leistungen ---------- */
.has-dd { position: relative; display: flex; align-items: center; }
.dd-toggle { display: grid; place-items: center; width: 22px; height: 28px; margin-left: -0.45rem; padding: 0; border: 0; background: none; color: var(--ink-3); }
.dd-toggle span { width: 7px; height: 7px; border-right: 1.2px solid currentColor; border-bottom: 1.2px solid currentColor; transform: translateY(-2px) rotate(45deg); transition: transform 0.3s var(--ease); }
.has-dd.is-open .dd-toggle span { transform: translateY(1px) rotate(225deg); }
.dropdown { position: absolute; top: calc(100% + 14px); left: -1rem; display: grid; grid-template-columns: 1fr 1.15fr; gap: 2rem; width: 620px; padding: 1.6rem 1.8rem 1.4rem; background: rgba(251, 251, 250, 0.97); border: 1px solid var(--line); border-top: 1px solid var(--ink); box-shadow: 0 24px 60px rgba(22, 32, 44, 0.1); opacity: 0; visibility: hidden; transform: translateY(6px); transition: opacity 0.25s, transform 0.35s var(--ease), visibility 0s linear 0.3s; }
.dropdown::before { content: ""; position: absolute; left: 0; right: 0; top: -16px; height: 16px; }
.has-dd.is-open > .dropdown { opacity: 1; visibility: visible; transform: none; transition-delay: 0s; }
@media (hover: hover) and (pointer: fine) { .has-dd:hover > .dropdown, .has-dd:focus-within > .dropdown { opacity: 1; visibility: visible; transform: none; transition-delay: 0s; } }
.dd-head { margin-bottom: 0.7rem; padding-bottom: 0.6rem; border-bottom: 1px solid var(--line-strong); font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); }
.dd-col ul { display: flex; flex-direction: column; }
.dd-col a { display: block; padding: 0.38rem 0; font-size: 0.9rem; color: var(--ink-2); transition: color 0.25s, padding 0.35s var(--ease); }
.dd-col a:hover, .dd-col a[aria-current="page"] { color: var(--ink); padding-left: 0.3rem; }
.dd-col li:first-child a[href*="baukostenmanagement"] { font-weight: 500; color: var(--ink); }
.nav-link.is-current { color: var(--ink); }

/* ---------- 13c. Unterseiten ---------- */
.crumbs { margin-bottom: clamp(2rem, 4vw, 3rem); }
.crumbs ol { display: flex; flex-wrap: wrap; gap: 0.3rem 0; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-3); }
.crumbs li:not(:last-child)::after { content: "/"; margin: 0 0.7em; opacity: 0.6; }
.crumbs a:hover { color: var(--ink); }
.crumbs [aria-current] { color: var(--ink-2); }
.page-hero { position: relative; overflow: hidden; padding-top: calc(var(--header-h) + clamp(2rem, 5vw, 3.5rem)); padding-bottom: clamp(4rem, 8vw, 6.5rem); border-bottom: 1px solid var(--line); }
.page-hero-drawing { position: absolute; right: -4%; top: 50%; width: min(52vw, 760px); aspect-ratio: 9 / 7; height: auto; transform: translateY(-46%); color: var(--plan); opacity: 0.1; pointer-events: none; }
.page-hero .container { position: relative; }
.page-hero-inner { display: grid; grid-template-columns: 1.3fr 0.7fr; gap: clamp(2rem, 6vw, 5rem); align-items: end; }
.page-hero h1 { font-size: clamp(2.1rem, 1.3rem + 2.6vw, 3.5rem); max-width: 18ch; overflow-wrap: break-word; hyphens: auto; margin-bottom: 1.4rem; }
.narrow > * { max-width: 46rem; }
.intro-text p { font-size: var(--fs-lg); font-weight: 300; color: var(--ink-2); line-height: 1.75; }
.intro-text p + p { margin-top: 1.2rem; }
.intro-text strong { font-weight: 500; color: var(--ink); }
.section-intro { margin-top: 1.2rem; font-size: var(--fs-lg); font-weight: 300; color: var(--ink-2); max-width: 42rem; }

.scope-list { border-top: 1px solid var(--ink); }
.scope-list li { display: grid; grid-template-columns: 4.5rem minmax(14rem, 1fr) 1.5fr; align-items: baseline; gap: 1.5rem; padding: 1.4rem 0; border-bottom: 1px solid var(--line-strong); }
.tga-note { position: relative; display: grid; align-items: start; grid-template-columns: 14rem 1fr; gap: 1.5rem; margin-top: clamp(2.5rem, 5vw, 3.5rem); padding-top: 1.6rem; border-top: 1px solid var(--line-strong); }
.tga-note::before { content: ""; position: absolute; left: 0; top: -1px; width: 120px; height: 2px; background: linear-gradient(90deg, var(--t-heiz) 0 20%, var(--t-luft) 20% 40%, var(--t-san) 40% 60%, var(--t-elek) 60% 80%, var(--t-spr) 80% 100%); }
.tga-note .eyebrow { margin: 0.35rem 0 0; }
.tga-note p:last-child { color: var(--ink-2); max-width: 46rem; }

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(1.2rem, 3vw, 2.5rem); }
.steps li { padding-top: 1.3rem; border-top: 1px solid var(--ink); }
.steps h3 { margin-bottom: 0.4rem; }
.steps p { font-size: var(--fs-sm); color: var(--ink-2); }

.two-lists { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2.5rem, 7vw, 7rem); }
.line-list { border-top: 1px solid var(--ink); }
.line-list li { padding: 1rem 0; border-bottom: 1px solid var(--line-strong); font-size: var(--fs-lg); font-weight: 300; }

.faq-wrap { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: clamp(2rem, 6vw, 5rem); align-items: start; }
.faq { border-top: 1px solid var(--ink); }
.faq details { border-bottom: 1px solid var(--line-strong); }
.faq summary { display: flex; justify-content: space-between; align-items: center; gap: 1.5rem; padding: 1.3rem 0; cursor: pointer; list-style: none; font-size: var(--fs-lg); }
.faq summary::-webkit-details-marker { display: none; }
.faq-icon { position: relative; width: 14px; height: 14px; flex: none; }
.faq-icon::before, .faq-icon::after { content: ""; position: absolute; left: 0; right: 0; top: 50%; height: 1px; background: var(--ink); transition: transform 0.35s var(--ease); }
.faq-icon::after { transform: rotate(90deg); }
.faq details[open] .faq-icon::after { transform: rotate(0deg); }
.faq details p { padding: 0 2.5rem 1.4rem 0; color: var(--ink-2); max-width: 44rem; }

.related { border-top: 1px solid var(--ink); }
.related li { border-bottom: 1px solid var(--line-strong); }
.related a { position: relative; display: grid; grid-template-columns: minmax(14rem, 1fr) 1.5fr 2.5rem; align-items: baseline; gap: 1.5rem; padding: 1.4rem 0; transition: padding 0.5s var(--ease); }
.related a::before { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px; background: var(--ink); transform: scaleX(0); transform-origin: left; transition: transform 0.7s var(--ease); }
.related a:hover { padding-left: 0.6rem; }
.related a:hover::before { transform: scaleX(1); }
.related a:hover .sl-arrow { width: 36px; background: var(--ink); }
.rel-title { font-size: var(--fs-xl); font-weight: 300; }
.rel-text { font-size: var(--fs-sm); color: var(--ink-2); }

.ava-cols { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--ink); }
.ava-cols li { display: flex; flex-direction: column; gap: 0.5rem; padding: 1.8rem 2rem 2rem; border-right: 1px solid var(--line-strong); }
.ava-cols li:first-child { padding-left: 0; }
.ava-cols li:last-child { border-right: 0; padding-right: 0; }
.ava-letter { font-size: clamp(4rem, 3rem + 4vw, 7rem); font-weight: 200; line-height: 0.9; letter-spacing: -0.04em; color: var(--brand); }
.ava-phase { margin-top: 0.6rem; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); }
.ava-cols h3 { margin: 0.3rem 0 0; font-size: var(--fs-xl); font-weight: 400; }
.ava-cols p { font-size: var(--fs-sm); color: var(--ink-2); }
.ava-cols .text-link { align-self: flex-start; margin-top: auto; }

.tga-split { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(2rem, 6vw, 5.5rem); align-items: start; }
.trade-terms { border-top: 1px solid var(--ink); }
.trade-terms li { display: grid; grid-template-columns: 1.4rem 1fr; column-gap: 0.6rem; padding: 1rem 0; border-bottom: 1px solid var(--line-strong); }
.trade-terms li::before { content: ""; grid-row: 1 / 3; align-self: center; width: 14px; height: 2px; background: var(--c); }
.tt-name { font-weight: 500; }
.tt-text { grid-column: 2; font-size: var(--fs-sm); color: var(--ink-3); }

/* Leistungsgruppen auf der Startseite */
.service-group + .service-group { margin-top: clamp(3.5rem, 7vw, 5.5rem); }
.group-head { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.2rem; font-family: var(--mono); font-size: var(--fs-xs); font-weight: 400; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-2); }
.group-head span { display: inline-grid; place-items: center; width: 26px; height: 26px; border: 1px solid var(--ink); border-radius: 50%; font-size: 0.7rem; letter-spacing: 0; color: var(--ink); }
.group-intro { max-width: 46rem; margin-bottom: 1.8rem; font-size: var(--fs-lg); font-weight: 300; color: var(--ink-2); }
.group-more { margin-top: 1.8rem; }

/* ---------- 13d. Mehrseitige Bausteine ---------- */
.dd-all { grid-column: 1 / -1; display: flex; justify-content: space-between; align-items: center; margin-top: 0.2rem; padding-top: 0.9rem; border-top: 1px solid var(--line-strong); font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-2); }
.dd-all::after { content: "→"; font-family: var(--font); letter-spacing: 0; transition: transform 0.35s var(--ease); }
.dd-all:hover { color: var(--ink); }
.dd-all:hover::after { transform: translateX(4px); }
.dd-col a.dd-overview { font-weight: 500; color: var(--ink); }
.dropdown { width: 660px; }

.page-hero--plain { padding-bottom: clamp(3.5rem, 7vw, 5.5rem); }
.page-hero--plain .page-hero-inner { grid-template-columns: 1fr; }
.page-hero--plain h1 { max-width: 20ch; }

.group-title { display: flex; align-items: center; gap: 1rem; }
.group-letter { display: inline-grid; place-items: center; flex: none; width: 2.2rem; height: 2.2rem; border: 1px solid var(--ink); border-radius: 50%; font-family: var(--mono); font-size: 0.9rem; font-weight: 400; letter-spacing: 0; }

.prose-split { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: clamp(2rem, 6vw, 5.5rem); align-items: start; }
.prose-split h2 { font-size: clamp(1.6rem, 1.2rem + 1.4vw, 2.3rem); margin: 0; }
.prose p { color: var(--ink-2); }
.prose p + p, .prose p + .line-list, .prose .line-list + p { margin-top: 1.1rem; }
.prose strong { font-weight: 500; color: var(--ink); }
.prose a { text-decoration: underline; text-underline-offset: 4px; text-decoration-thickness: 1px; }
.prose .line-list li { font-size: var(--fs-md); font-weight: 400; color: var(--ink-2); }

.legal-block { max-width: 52rem; }
.legal h2 { font-size: var(--fs-xl); font-weight: 500; margin-bottom: 1rem; }
.legal .prose p, .legal .prose li { font-size: var(--fs-sm); }
.legal .prose h3 { margin: 1.6rem 0 0.4rem; font-size: 1rem; }
.legal-block { padding: 1.6rem 0; border-top: 1px solid var(--line-strong); }
.legal-block:first-child { border-top-color: var(--ink); }

.contact-split { display: grid; grid-template-columns: 1.35fr 0.65fr; gap: clamp(2.5rem, 6vw, 6rem); align-items: start; }
.contact-split .section-head { margin-bottom: 2rem; }
.info-list { border-top: 1px solid var(--ink); }
.info-list > div { display: grid; grid-template-columns: 6.5rem 1fr; gap: 1rem; padding: 0.9rem 0; border-bottom: 1px solid var(--line-strong); }
.info-list dt { padding-top: 0.2rem; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); }
.info-list a:hover { text-decoration: underline; text-underline-offset: 4px; }
.side-links { border-top: 1px solid var(--ink); }
.side-links li { border-bottom: 1px solid var(--line-strong); }
.side-links a { display: block; padding: 0.9rem 0; transition: padding 0.4s var(--ease); }
.side-links a:hover { padding-left: 0.4rem; }

/* Formular: nur Linien, keine Kästen */
.cform { border-top: 1px solid var(--ink); padding-top: 1.6rem; }
.cform-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.6rem 2rem; }
.field { display: flex; flex-direction: column; gap: 0.35rem; }
.field--wide { grid-column: 1 / -1; }
.field > span { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); }
.field input, .field select, .field textarea { width: 100%; padding: 0.55rem 0; border: 0; border-bottom: 1px solid var(--line-strong); border-radius: 0; background: transparent; font: inherit; font-size: var(--fs-lg); font-weight: 300; color: var(--ink); transition: border-color 0.3s; }
.field textarea { resize: vertical; min-height: 8rem; line-height: 1.6; }
.field select { appearance: none; -webkit-appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--ink-2) 50%), linear-gradient(135deg, var(--ink-2) 50%, transparent 50%); background-position: right 6px center, right 0 center; background-size: 6px 6px; background-repeat: no-repeat; padding-right: 1.5rem; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-bottom-color: var(--ink); }
.field input:focus-visible, .field select:focus-visible, .field textarea:focus-visible { box-shadow: 0 1px 0 0 var(--ink); }
.field--file input { font-size: var(--fs-sm); border-bottom-style: dashed; padding: 0.8rem 0; }
.check { display: grid; grid-template-columns: 1.3rem 1fr; gap: 0.6rem; margin-top: 1.8rem; font-size: var(--fs-sm); color: var(--ink-2); }
.check input { width: 16px; height: 16px; margin-top: 0.3rem; accent-color: var(--brand-deep); }
.check a { text-decoration: underline; text-underline-offset: 3px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.cform-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.6rem; margin-top: 2rem; }
.cform-foot .btn:disabled { opacity: 0.55; cursor: progress; transform: none; }
.cform-status { margin: 0; max-width: 34rem; font-size: var(--fs-sm); color: var(--ink-2); }
.cform-status.is-ok { color: var(--t-luft); }
.cform-status.is-error { color: var(--t-heiz); }

.nf-links { margin-top: 2.5rem; max-width: 52rem; }

.principles--4 { grid-template-columns: repeat(4, 1fr); }
.city-grid { display: grid; grid-template-columns: repeat(4, 1fr); column-gap: 2rem; border-top: 1px solid var(--ink); margin-bottom: 2rem; }
.city-grid li { padding: 0.85rem 0; border-bottom: 1px solid var(--line-strong); font-size: var(--fs-lg); font-weight: 300; }

/* ---------- 13e. Bilder: Tafeln, Galerie, Projektkarten ---------- */
/* Modellbilder stehen wie Planblätter auf weißem Grund mit feiner Linie – kein Schatten, keine Rundung */
.section--plate { padding-block: clamp(2.5rem, 5vw, 4rem) clamp(4rem, 8vw, 6rem); }
.plate { margin: 0; }
.plate-img { display: block; background: #fff; border: 1px solid var(--line); overflow: hidden; cursor: zoom-in; }
.plate-img img { width: 100%; height: auto; transition: transform 1.2s var(--ease); }
.plate-img:hover img { transform: scale(1.02); }
.plate figcaption { display: flex; gap: 1rem; margin-top: 0.8rem; padding-top: 0.7rem; border-top: 1px solid var(--line-strong); font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); }
.plate figcaption span { color: var(--ink); }
.plate--hero .plate-img { aspect-ratio: 16 / 8; display: flex; align-items: center; justify-content: center; padding: clamp(1rem, 3vw, 2.5rem); }
.plate--hero .plate-img img { width: auto; max-width: 100%; max-height: 100%; }
.gallery { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.5rem, 4vw, 3rem) clamp(1.2rem, 3vw, 2.5rem); }
.gallery .plate-img { aspect-ratio: 16 / 10; display: flex; align-items: center; justify-content: center; padding: clamp(0.8rem, 2vw, 1.6rem); }
.gallery .plate-img img { width: auto; max-width: 100%; max-height: 100%; }

.pcards { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2.5rem, 5vw, 4rem) clamp(1.5rem, 4vw, 3rem); }
.pcards--compact { grid-template-columns: repeat(3, 1fr); }
.pcard { display: flex; flex-direction: column; gap: 0.7rem; }
.pcard-img { display: flex; align-items: center; justify-content: center; aspect-ratio: 16 / 10; margin-bottom: 0.5rem; padding: clamp(0.8rem, 2vw, 1.6rem); background: #fff; border: 1px solid var(--line); overflow: hidden; }
.pcard-img img { width: auto; max-width: 100%; max-height: 100%; transition: transform 1.2s var(--ease); }
.pcard:hover .pcard-img img { transform: scale(1.04); }
.pcard-title { position: relative; align-self: flex-start; font-size: var(--fs-xl); font-weight: 300; line-height: 1.25; padding-bottom: 0.3rem; }
.pcard-title::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: var(--ink); transform: scaleX(0); transform-origin: left; transition: transform 0.7s var(--ease); }
.pcard:hover .pcard-title::after { transform: scaleX(1); }
.pcards--compact .pcard-title { font-size: var(--fs-lg); }


/* Großansicht */
.lightbox { width: min(94vw, 1500px); max-height: 92vh; padding: 0; border: 1px solid var(--line-strong); background: #fff; color: var(--ink); }
.lightbox::backdrop { background: rgba(22, 32, 44, 0.72); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
.lb-img { display: block; width: 100%; max-height: calc(92vh - 4.2rem); object-fit: contain; background: #fff; }
.lb-bar { display: flex; align-items: center; gap: 1rem; padding: 0.9rem 1.2rem; border-top: 1px solid var(--line); font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-2); }
.lb-cap { flex: 1; }
.lb-btn { display: grid; place-items: center; width: 38px; height: 38px; border: 1px solid var(--line-strong); border-radius: 50%; background: none; font-size: 1rem; line-height: 1; color: var(--ink); transition: border-color 0.3s; }
.lb-btn:hover { border-color: var(--ink); }

/* ---------- 13f. CAD-Elemente: Lineal, Schnitt, Millimeterpapier, Planblatt ---------- */
:root { --grid-minor: rgba(57, 82, 110, 0.06); --grid-major: rgba(57, 82, 110, 0.11); }

/* Lineal: Teilstriche in Zehnteln, Zahlen 0–10 */
.ruler { position: relative; display: flex; justify-content: space-between; height: 26px; margin-bottom: clamp(1.5rem, 3vw, 2.2rem); padding-top: 13px; color: var(--ink-3);
  background:
    linear-gradient(currentColor, currentColor) left top / 100% 1px no-repeat,
    repeating-linear-gradient(90deg, currentColor 0 1px, transparent 1px 10%) left top / calc(100% + 1px) 11px no-repeat,
    repeating-linear-gradient(90deg, currentColor 0 1px, transparent 1px 2%) left top / calc(100% + 1px) 5px no-repeat;
  opacity: 0.75; }
.ruler span { width: 0; font-family: var(--mono); font-size: 0.6rem; line-height: 1; text-indent: -0.3em; white-space: nowrap; }
.ruler span:last-of-type { text-indent: -1.3em; }
.ruler em { position: absolute; right: 0; top: -1.15rem; font-family: var(--mono); font-size: 0.6rem; font-style: normal; letter-spacing: 0.14em; }

/* Schnitt-Schraffur als Trenner zwischen Abschnitten */
.cut { position: relative; height: 14px; border-block: 1px solid var(--ink); background: repeating-linear-gradient(-45deg, rgba(22, 32, 44, 0.55) 0 1px, transparent 1px 7px); }
.cut span { position: absolute; right: var(--gutter); top: 50%; transform: translateY(-50%); padding: 0 0.7rem; background: var(--bg); font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-2); }

/* Millimeterpapier */
.section--grid { background-color: var(--bg);
  background-image:
    linear-gradient(var(--grid-major) 1px, transparent 1px), linear-gradient(90deg, var(--grid-major) 1px, transparent 1px),
    linear-gradient(var(--grid-minor) 1px, transparent 1px), linear-gradient(90deg, var(--grid-minor) 1px, transparent 1px);
  background-size: 50px 50px, 50px 50px, 10px 10px, 10px 10px; background-position: -1px -1px; }

/* Mini-Titel: Maßlinie mit Architekturstrichen und laufender Blattnummer */
main { counter-reset: dim; }
.eyebrow-tick { counter-increment: dim; position: relative; width: 74px; height: 12px; margin-top: -2px; background:
    linear-gradient(currentColor, currentColor) center / 100% 1px no-repeat,
    linear-gradient(135deg, transparent 44%, currentColor 44% 56%, transparent 56%) left center / 10px 10px no-repeat,
    linear-gradient(135deg, transparent 44%, currentColor 44% 56%, transparent 56%) right center / 10px 10px no-repeat; }
.eyebrow-tick::before { content: none; }
.eyebrow-tick::after { content: counter(dim, decimal-leading-zero); position: absolute; left: 50%; right: auto; top: -0.85rem; width: auto; height: auto; transform: translateX(-50%); padding: 0 0.35rem; background: none; font-size: 0.6rem; letter-spacing: 0.08em; line-height: 1; }
.eyebrow { gap: 0.9rem; padding-top: 0.6rem; }

/* Leistungs-Hero mit Planblatt */
.page-hero--service { padding-top: calc(var(--header-h) + clamp(1.2rem, 3vw, 2rem)); padding-bottom: clamp(3.5rem, 7vw, 5.5rem); border-bottom: 0; }
.page-hero--service .crumbs { margin-bottom: clamp(1.8rem, 4vw, 2.8rem); }
.service-hero-inner { display: grid; grid-template-columns: 1fr 1.05fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: center; }
.service-hero-inner h1 { font-size: clamp(2.1rem, 1.2rem + 2.4vw, 3.3rem); max-width: 16ch; margin-bottom: 1.3rem; -webkit-hyphens: auto; hyphens: auto; hyphenate-limit-chars: 10 4 4; }
.sheet { position: relative; display: grid; grid-template-columns: 1fr auto; column-gap: 1.2rem; margin: 0; }
.sheet-frame { grid-column: 1 / -1; }
.sheet-frame { position: relative; padding: 10px; border: 1px solid var(--ink); background: #fff; }
.sheet-frame::before { content: ""; position: absolute; inset: 4px; border: 1px solid var(--line-strong); pointer-events: none; }
.sheet-corner { position: absolute; width: 18px; height: 18px; border-color: var(--ink); border-style: solid; }
.sheet-corner--tl { left: -7px; top: -7px; border-width: 1px 0 0 1px; }
.sheet-corner--br { right: -7px; bottom: -7px; border-width: 0 1px 1px 0; }
.sheet-img { display: flex; align-items: center; justify-content: center; aspect-ratio: 4 / 3; padding: clamp(0.6rem, 2vw, 1.4rem); overflow: hidden; }
.sheet-img img { width: auto; max-width: 100%; max-height: 100%; }
.sheet-img--plan { color: var(--plan); }
.sheet-img--plan .plan { width: 100%; height: 100%; }
.sheet-img--plan .plan-axes, .sheet-img--plan .plan-dims, .sheet-img--plan .plan-text { opacity: 0.55; }
.sheet-img--plan .plan-walls { opacity: 0.85; }
.sheet-img--plan .plan-detail { opacity: 0.6; }
.sheet-img--plan .plan-trades { opacity: 0.8; }
.sheet-dwg { width: 100%; height: 100%; color: var(--ink); }
.sheet figcaption { grid-column: 1; grid-row: 2; align-self: start; margin-top: 0.7rem; font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); line-height: 1.5; }
.title-block--sheet { position: relative; grid-column: 2; grid-row: 2; justify-self: end; margin-top: -2.4rem; margin-right: -1px; width: min(330px, 62vw); background: var(--bg); -webkit-backdrop-filter: none; backdrop-filter: none; font-size: 0.85rem; }
.title-block--sheet dt { padding: 0.5rem 0.8rem; font-size: 0.62rem; }
.title-block--sheet dd { padding: 0.45rem 0.8rem; }
.title-block--sheet dl > div { grid-template-columns: 6.6rem 1fr; }

/* Einleitung mit senkrechtem Lineal */
.intro-grid { display: grid; grid-template-columns: 11rem minmax(0, 46rem); gap: clamp(1.5rem, 4vw, 3.5rem); }
.intro-label { margin: 0; padding-top: 0.4rem; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); }
.intro-label span { display: block; padding-bottom: 0.7rem; border-bottom: 1px solid var(--ink); }
.vruler-text { position: relative; padding-left: 2rem; color: var(--ink-3);
  background:
    linear-gradient(currentColor, currentColor) left top / 1px 100% no-repeat,
    repeating-linear-gradient(180deg, currentColor 0 1px, transparent 1px 40px) left top / 11px 100% no-repeat,
    repeating-linear-gradient(180deg, currentColor 0 1px, transparent 1px 8px) left top / 5px 100% no-repeat; }
.vruler-text p { color: var(--ink-2); font-size: var(--fs-lg); font-weight: 300; line-height: 1.75; }
.vruler-text p + p { margin-top: 1.2rem; }
.vruler-text strong { font-weight: 500; color: var(--ink); }

/* Stückliste */
.parts { border: 1px solid var(--ink); background: rgba(251, 251, 250, 0.92); }
.parts-head, .parts-row { display: grid; grid-template-columns: 5rem minmax(13rem, 0.9fr) 1.6fr; }
.parts-head { border-bottom: 1px solid var(--ink); font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); }
.parts-head span, .parts-row span { padding: 0.9rem 1.1rem; }
.parts-head span + span, .parts-row span + span { border-left: 1px solid var(--line-strong); }
.parts-row { border-bottom: 1px solid var(--line-strong); transition: background 0.3s; }
.parts-row:last-child { border-bottom: 0; }
.parts-row:hover { background: #fff; }
.parts-pos { font-family: var(--mono); font-size: 0.8rem; color: var(--ink-3); }
.parts-title { font-size: var(--fs-lg); font-weight: 400; }
.parts-text { font-size: var(--fs-sm); color: var(--ink-2); }

/* Anmerkung mit Bezugslinie */
.callout { display: grid; grid-template-columns: 3.4rem 3.5rem 1fr; align-items: center; margin-top: clamp(2.5rem, 5vw, 3.5rem); }
.callout-mark { display: grid; place-items: center; width: 3.4rem; height: 3.4rem; border: 1px solid var(--ink); border-radius: 50%; background: var(--bg); font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.08em; }
.callout-leader { height: 1px; background: var(--ink); position: relative; }
.callout-leader::after { content: ""; position: absolute; right: -1px; top: -3px; width: 7px; height: 7px; border-radius: 50%; background: var(--ink); }
.callout p { margin: 0; padding: 1rem 1.3rem; border: 1px solid var(--line-strong); background: var(--bg); color: var(--ink-2); max-width: 48rem; }

/* Ablauf als Maßkette */
.dimchain { position: relative; display: grid; grid-template-columns: repeat(var(--n, 4), 1fr); padding-top: 4.2rem; }
.dimchain li { position: relative; padding: 2.2rem 1.6rem 0 0; }
.dc-bubble { position: absolute; left: -1.05rem; top: -4.2rem; display: grid; place-items: center; width: 2.1rem; height: 2.1rem; border: 1px solid var(--ink); border-radius: 50%; background: var(--bg-2); font-family: var(--mono); font-size: 0.75rem; }
.dc-bubble::after { content: ""; position: absolute; left: 50%; top: 100%; height: 2.1rem; border-left: 1px dashed var(--ink-3); }
.dc-seg { position: absolute; left: 0; right: 0; top: 0; height: 1px; background: var(--ink);
  background-image: linear-gradient(135deg, transparent 44%, var(--ink) 44% 56%, transparent 56%); background-size: 12px 12px; background-repeat: no-repeat; background-position: -6px -6px; }
.dc-seg::before { content: ""; position: absolute; left: 0; top: -6px; height: 13px; border-left: 1px solid var(--ink); }
.dimchain li:last-child .dc-seg::after { content: ""; position: absolute; right: 0; top: -6px; height: 13px; border-left: 1px solid var(--ink); }
.dimchain h3 { margin: 0 0 0.4rem; }
.dimchain p { font-size: var(--fs-sm); color: var(--ink-2); max-width: 26ch; }

/* Für wen / Sie erhalten als Planliste */
.schedule { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--ink); }
.schedule-col + .schedule-col { border-left: 1px solid var(--ink); }
.schedule-head { margin: 0; padding: 0.9rem 1.3rem; border-bottom: 1px solid var(--ink); font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-2); background: var(--bg-2); }
.schedule li { padding: 0.95rem 1.3rem; border-bottom: 1px solid var(--line-strong); font-size: var(--fs-lg); font-weight: 300; }
.schedule li:last-child { border-bottom: 0; }

/* Startseite: Leistungen kompakt in zwei Spalten */
.duo { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--ink); }
.duo-col { padding: 2rem clamp(1.5rem, 4vw, 3.5rem) 0 0; }
.duo-col + .duo-col { padding-left: clamp(1.5rem, 4vw, 3.5rem); border-left: 1px solid var(--line-strong); }
.duo-label { margin-bottom: 1rem; font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-3); }
.duo h3 { margin-bottom: 0.9rem; font-size: clamp(1.5rem, 1.1rem + 1.2vw, 2.1rem); font-weight: 300; letter-spacing: -0.02em; }
.duo h3 a { background: linear-gradient(var(--ink), var(--ink)) left bottom / 0 1px no-repeat; transition: background-size 0.6s var(--ease); }
.duo h3 a:hover { background-size: 100% 1px; }
.duo-col > p { color: var(--ink-2); max-width: 34rem; }
.duo-links { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.6rem; }
.duo-links a { display: inline-block; padding: 0.45rem 0.9rem; border: 1px solid var(--line-strong); border-radius: 999px; font-size: var(--fs-xs); font-weight: 500; letter-spacing: 0.02em; color: var(--ink-2); transition: border-color 0.3s, color 0.3s; }
.duo-links a:hover { border-color: var(--ink); color: var(--ink); }

/* Zitat mit Grundsätzen */
.quote.section-alt { background: var(--bg-2); }
.principles--quote { margin-top: clamp(3rem, 6vw, 4.5rem); }
.quote .group-more { margin-top: 2.5rem; }

/* Engagement: TÜV Kids – wärmer, freundlicher */
.engage { background: #F5EEE3; overflow: hidden; }
.engage-inner { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(2rem, 6vw, 5.5rem); align-items: center; }
.engage-photo { position: relative; margin: 0; }
.engage-photo img { width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 4px; }
.engage-photo::after { content: ""; position: absolute; inset: auto -14px -14px auto; width: 46%; height: 46%; border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink); pointer-events: none; }
.engage-logo { display: block; width: 104px; height: auto; margin-bottom: 1.8rem; }
.engage-text h2 { margin-bottom: 1.2rem; }
.engage-text p { color: #5A5249; max-width: 34rem; }
.engage-text p + p { margin-top: 1rem; }
.engage .eyebrow { color: #A0613A; }
.engage-facts { display: flex; flex-wrap: wrap; margin-top: 2rem; border-top: 1px solid rgba(22, 32, 44, 0.35); }
.engage-facts li { flex: 1 1 8rem; padding: 0.9rem 1rem 0 0; font-size: var(--fs-sm); }
.engage-facts span { display: block; margin-bottom: 0.2rem; font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.14em; text-transform: uppercase; color: #8C7B68; }

/* ---------- 14. Reveal ---------- */
.js .reveal { opacity: 0; transform: translateY(22px); transition: opacity 1s var(--ease), transform 1s var(--ease); }
.js .reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .js .plan .draw { stroke-dasharray: none; animation: none; }
  .js .plan-axes, .js .plan-dims, .js .plan-text, .js .plan-detail, .js .plan-trades { animation: none; }
}

/* ---------- 15. Responsiv ---------- */
@media (max-width: 1100px) {
  .service-hero-inner { grid-template-columns: 1fr; }
  .sheet { max-width: 680px; }
  .pcards--compact { grid-template-columns: 1fr 1fr; }
  .principles--4, .city-grid { grid-template-columns: 1fr 1fr; }
  .contact-split, .prose-split { grid-template-columns: 1fr; }
  .page-hero-inner { grid-template-columns: 1fr; align-items: start; }
  .faq-wrap, .tga-split { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .nav-phone { display: none; }
  .hero-inner { grid-template-columns: 1fr; align-items: start; }
  .title-block { max-width: 30rem; }
  .gewerke-inner { grid-template-columns: 1fr; }
}

@media (max-width: 960px) {
  .engage-inner { grid-template-columns: 1fr; }
  .duo { grid-template-columns: 1fr; }
  .duo-col + .duo-col { padding-left: 0; border-left: 0; margin-top: 2rem; border-top: 1px solid var(--line-strong); }
  .intro-grid { grid-template-columns: 1fr; gap: 1rem; }
  .parts-head { display: none; }
  .parts-row { grid-template-columns: 3.2rem 1fr; }
  .parts-text { grid-column: 2; border-left: 1px solid var(--line-strong); padding-top: 0 !important; }
  .parts-row span + span.parts-text { border-left: 1px solid var(--line-strong); }
  .dimchain { grid-template-columns: 1fr 1fr; row-gap: 5.5rem; }
  .schedule { grid-template-columns: 1fr; }
  .schedule-col + .schedule-col { border-left: 0; border-top: 1px solid var(--ink); }
  .callout { grid-template-columns: 3.4rem 1.5rem 1fr; }
  :root { --header-h: 70px; }
  .nav-toggle { display: flex; }
  .main-nav { position: fixed; inset: var(--header-h) 0 0 0; z-index: 99; flex-direction: column; align-items: stretch; gap: 0; padding: 1.5rem var(--gutter) 2rem; background: var(--bg); opacity: 0; visibility: hidden; transform: translateY(-8px); transition: opacity 0.3s, transform 0.4s var(--ease), visibility 0s linear 0.3s; overflow-y: auto; }
  body.nav-open .main-nav { opacity: 1; visibility: visible; transform: none; transition-delay: 0s; }
  body.nav-open { overflow: hidden; }
  .nav-list { flex-direction: column; align-items: stretch; gap: 0; border-top: 1px solid var(--ink); }
  .nav-link { display: block; padding: 1.05rem 0; font-size: 1.35rem; font-weight: 300; color: var(--ink); border-bottom: 1px solid var(--line-strong); }
  .nav-link::after { display: none; }
  .nav-phone { display: block; margin-top: 1.6rem; font-size: 0.95rem; }
  .header-actions .btn { display: none; }
  .hero-drawing { inset: 0 -30% 0 0; opacity: 0.8; }
  .principles { grid-template-columns: 1fr; }
  .service-list a { grid-template-columns: 2.8rem 1fr 1.6rem; gap: 0.3rem 1rem; }
  .sl-text { grid-column: 2; grid-row: 2; }
  .sl-arrow { grid-column: 3; grid-row: 1 / 3; }
  .project-list a { grid-template-columns: 1fr 1.6rem; gap: 0.4rem 1rem; }
  .pl-cat { grid-column: 1; }
  .pl-title { grid-column: 1; }
  .pl-meta { display: none; }
  .pl-arrow { grid-column: 2; grid-row: 1 / 3; }
  .places-inner { grid-template-columns: 1fr; }
  .career { padding-left: 0; border-left: 0; padding-top: 3rem; border-top: 1px solid var(--line-strong); }
  .contact-inner { grid-template-columns: 1fr; }
  .section-head--split { flex-direction: column; align-items: flex-start; }
  .has-dd { flex-wrap: wrap; border-bottom: 1px solid var(--line-strong); }
  .has-dd > .nav-link { flex: 1; border-bottom: 0; }
  .dd-toggle { width: 44px; height: 44px; margin: 0; }
  .dropdown { position: static; display: none; width: 100%; grid-template-columns: 1fr; gap: 1.2rem; padding: 0 0 1.4rem; background: none; border: 0; box-shadow: none; opacity: 1; visibility: visible; transform: none; }
  .has-dd.is-open > .dropdown { display: grid; }
  .scope-list li { grid-template-columns: 2.8rem 1fr; gap: 0.3rem 1rem; }
  .scope-list .sl-text { grid-column: 2; }
  .tga-note { grid-template-columns: 1fr; gap: 0.5rem; }
  .two-lists { grid-template-columns: 1fr; }
  .related a { grid-template-columns: 1fr 1.6rem; gap: 0.3rem 1rem; }
  .rel-text { grid-column: 1; grid-row: 2; }
  .related .sl-arrow { grid-column: 2; grid-row: 1 / 3; }
  .ava-cols { grid-template-columns: 1fr; }
  .ava-cols li, .ava-cols li:first-child, .ava-cols li:last-child { padding: 1.6rem 0; border-right: 0; border-bottom: 1px solid var(--line-strong); }
  .page-hero-drawing { width: 120vw; right: -40%; opacity: 0.07; }
}

@media (max-width: 560px) {
  .dimchain { grid-template-columns: 1fr; padding-left: 1.4rem; }
  .sheet { grid-template-columns: 1fr; }
  .title-block--sheet { grid-column: 1; grid-row: 3; width: 100%; margin-top: 1rem; }
  .gallery, .pcards, .pcards--compact { grid-template-columns: 1fr; }
  .plate--hero .plate-img { aspect-ratio: 4 / 3; }
  .cform-grid { grid-template-columns: 1fr; }
  .info-list > div { grid-template-columns: 5.5rem 1fr; }
  .footer-grid, .steps { grid-template-columns: 1fr; }
  .title-block dl > div { grid-template-columns: 6.4rem 1fr; }
  .title-block dt { padding-inline: 0.8rem; }
  .hero-cta .btn { flex: 1 1 auto; }
  .city-list li { flex-direction: column; gap: 0.1rem; }
  .city-note { text-align: left; }
}

.hero + .gewerke { border-top: 1px solid var(--line); }

.intro-text .intro-label { font-size: 0.7rem; font-weight: 400; line-height: 1.4; color: var(--ink-3); }