/* KDS Steinhandwerk Grass – main.css · v0.2.0 (Entwurf 3 „Steinbuch“) */

@font-face{font-family:"Marcellus";src:url("../fonts/marcellus-latin-400-normal.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Hanken Grotesk";src:url("../fonts/hanken-grotesk-latin-400-normal.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Hanken Grotesk";src:url("../fonts/hanken-grotesk-latin-500-normal.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:"Hanken Grotesk";src:url("../fonts/hanken-grotesk-latin-600-normal.woff2") format("woff2");font-weight:600;font-style:normal;font-display:swap}
@font-face{font-family:"IBM Plex Mono";src:url("../fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"IBM Plex Mono";src:url("../fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap}

:root{
  --paper:#F4F1EB;
  --stone:#E6E1D7;
  --frame:#DDD7CC;
  --rule:#CFC8BB;
  --ink:#23221F;
  --text:#3A3833;
  --muted:#55524B;
  --muted-2:#6B675F;
  --slate:#4C5D60;
  --slate-light:#A9B6B8;
  --dark:#23221F;
  --darker:#1A1917;
  --on-dark:#F4F1EB;
  --on-dark-muted:#CFC9BF;
  --foot-text:#A9A398;
  --white:#FFFFFF;
  --font-display:"Marcellus",Georgia,"Times New Roman",serif;
  --font-sans:"Hanken Grotesk",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,"SFMono-Regular",Menlo,monospace;
  --wrap:1280px;
  --wrap-legal:760px;
  --gutter:clamp(16px,4vw,48px);
  --col-gap:clamp(16px,2vw,28px);
  --sec:clamp(80px,10vw,140px);
  --sec-sm:clamp(48px,6vw,88px);
  --head-gap:clamp(40px,5vw,64px);
  --radius-img:4px;
  --radius-card:14px;
  --header-h:80px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 16px)}
body{margin:0;background:var(--paper);color:var(--text);font-family:var(--font-sans);font-size:16.5px;line-height:1.75;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
:focus-visible{outline:2px solid var(--slate);outline-offset:3px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter)}
.wrap--legal{max-width:var(--wrap-legal)}
.skip-link{position:absolute;left:12px;top:-60px;z-index:100;background:var(--white);color:var(--ink);padding:10px 16px;border-radius:999px;font-weight:600;text-decoration:none;transition:top .2s}
.skip-link:focus{top:12px}

/* Raster: 12 Spalten, Splits stapeln unter 860px */
.grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));column-gap:var(--col-gap)}
.c-1-5{grid-column:1 / span 5}.c-1-6{grid-column:1 / span 6}.c-1-7{grid-column:1 / span 7}.c-1-8{grid-column:1 / span 8}
.c-7-6{grid-column:7 / span 6}.c-8-5{grid-column:8 / span 5}.c-9-4{grid-column:9 / span 4}.c-full{grid-column:1 / -1}
.cols-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--col-gap)}
.cols-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--col-gap)}
.cols-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--col-gap)}

/* Typografie: Marcellus (Inschrift), Hanken Grotesk (Text), IBM Plex Mono (Etiketten) */
.d{font-family:var(--font-display);font-weight:400;color:var(--ink);margin:0;letter-spacing:.005em}
.d--xl,h1.d{font-size:clamp(2.7rem,5.6vw,5rem);line-height:1.04}
.d--l{font-size:clamp(2rem,3.6vw,3.1rem);line-height:1.1}
.d--m{font-size:clamp(1.5rem,2.4vw,2rem);line-height:1.18}
.d--s{font-size:1.2rem;line-height:1.3}
.caps{text-transform:uppercase;letter-spacing:.14em}
.label{font-family:var(--font-mono);font-size:12px;font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--slate);margin:0}
.lead{font-size:clamp(1.05rem,1.35vw,1.2rem);line-height:1.65;color:var(--muted);margin:0}
.muted{color:var(--muted)}
.on-dark .d{color:var(--on-dark)}
.on-dark .label{color:var(--slate-light)}
.on-dark .lead{color:var(--on-dark-muted)}
.prose p{margin:0 0 1.1em}
.prose h2{font-family:var(--font-display);font-weight:400;font-size:clamp(1.5rem,2.4vw,2rem);line-height:1.2;color:var(--ink);margin:1.6em 0 .5em}
.prose h3{font-size:1.1rem;margin:1.4em 0 .4em;color:var(--ink)}
.prose a{color:var(--slate)}

/* Buttons & Links */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:50px;padding:0 28px;border-radius:999px;border:1px solid transparent;font-family:var(--font-sans);font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;text-decoration:none;cursor:pointer;transition:background .25s,color .25s,border-color .25s;max-width:100%}
.btn--primary{background:var(--ink);color:var(--on-dark)}.btn--primary:hover{background:var(--slate);color:var(--white)}
.btn--ghost{border-color:var(--ink);color:var(--ink);background:transparent}.btn--ghost:hover{background:var(--ink);color:var(--on-dark)}
.btn--light{background:var(--paper);color:var(--ink)}.btn--light:hover{background:var(--white);color:var(--ink)}
.btn--ghost-light{border-color:rgba(244,241,235,.5);color:var(--on-dark);background:transparent}.btn--ghost-light:hover{border-color:var(--on-dark);color:var(--white)}
.btn--sm{min-height:42px;padding:0 22px;font-size:12px}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.btn-row--center{justify-content:center}
.btn-stack{display:flex;flex-direction:column;gap:14px}
.link-line{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;text-decoration:none;color:var(--ink)}
.link-line::after{content:"";width:28px;height:1px;background:currentColor;transition:width .25s}
.link-line:hover::after{width:44px}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(244,241,235,.94);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-top:3px solid var(--slate);border-bottom:1px solid var(--rule)}
.site-header__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:var(--header-h)}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none}
.brand__mark{width:44px;height:55px}
.brand__text{display:flex;flex-direction:column;gap:3px}
.brand__name{font-family:var(--font-display);font-size:1.08rem;line-height:1;text-transform:uppercase;letter-spacing:.16em;color:var(--ink)}
.brand__claim{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted-2)}
.nav{display:flex;gap:32px;align-items:center}
.nav a{text-decoration:none;font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--ink);padding:6px 0}
.nav a:hover{color:var(--slate)}
.nav a[aria-current="page"]{box-shadow:inset 0 -1px 0 var(--ink)}
.site-header__actions{display:flex;align-items:center;gap:10px}
.burger{display:none;width:46px;height:46px;border-radius:999px;border:1px solid var(--rule);background:transparent;color:var(--ink);align-items:center;justify-content:center;cursor:pointer}
.mobile-nav{display:none;border-top:1px solid var(--rule);background:var(--paper)}
.mobile-nav.is-open{display:block}
.mobile-nav ul{list-style:none;margin:0;padding:8px var(--gutter) 24px}
.mobile-nav a{display:flex;align-items:center;min-height:54px;text-decoration:none;font-family:var(--font-display);font-size:1.25rem;color:var(--ink);border-bottom:1px solid var(--rule)}

/* Hero Startseite: Steinbock auf dem Grat */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--ink)}
.hero__content{position:relative;z-index:1;padding-top:clamp(64px,8vw,120px);padding-bottom:clamp(220px,24vw,360px)}
.hero__text{display:flex;flex-direction:column;gap:28px}
.hero__text .lead{max-width:500px}
.hero__art{position:absolute;right:0;bottom:0;width:min(64%,940px);pointer-events:none}

/* Index-Leiste */
.index{background:var(--paper)}
.index a{text-decoration:none;display:flex;align-items:baseline;gap:14px;padding:22px 0;color:var(--ink);border-top:1px solid var(--ink)}
.index .d{font-size:1.35rem}
.index a:hover .d{color:var(--slate)}

/* Page-Hero Unterseiten (Bildmarke + Label + H1 + Lead, zentriert) */
.page-hero{padding:clamp(64px,8vw,112px) 0 clamp(48px,6vw,80px);text-align:center;border-bottom:1px solid var(--rule)}
.page-hero__inner{display:flex;flex-direction:column;align-items:center;gap:22px}
.page-hero__mark{width:52px;height:65px}
.page-hero .lead{max-width:620px}
.page-hero__media{margin-top:clamp(40px,5vw,64px)}

/* Sektionen */
.sec{padding:var(--sec) 0}
.sec--sm{padding:var(--sec-sm) 0}
.sec--stone{background:var(--stone)}
.sec--dark{background:var(--dark);color:var(--on-dark-muted)}
.sec-head{align-items:end;margin-bottom:var(--head-gap);row-gap:24px}
.sec-head__title{display:flex;flex-direction:column;gap:20px}
.sec-head--center{display:flex;flex-direction:column;align-items:center;text-align:center;gap:20px}
.sec-head--center .lead{max-width:620px}
.stack{display:flex;flex-direction:column;gap:22px}
.stack--center{justify-content:center}
.split{align-items:stretch;row-gap:40px}

/* Bildrahmen */
.ph{position:relative;overflow:hidden;border-radius:var(--radius-img);background:var(--frame)}
.ph img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 1s cubic-bezier(.2,.7,.2,1)}
.ph--4x5{aspect-ratio:4/5}.ph--16x10{aspect-ratio:16/10}.ph--21x9{aspect-ratio:21/9;min-height:300px}.ph--4x3{aspect-ratio:4/3}
.ph--fill{height:100%;min-height:440px}

/* Kacheln (identischer Aufbau, Links auf gemeinsamer Grundlinie) */
.tiles{row-gap:48px}
.tile{display:flex;flex-direction:column;text-decoration:none;color:inherit}
.tile:hover .ph img{transform:scale(1.03)}
.tile__label{display:flex;justify-content:space-between;align-items:baseline;gap:16px;padding:18px 0 14px;border-bottom:1px solid var(--rule)}
.tile__name{font-family:var(--font-display);font-size:1.05rem;text-transform:uppercase;letter-spacing:.14em;color:var(--ink)}
.tile__text{margin:16px 0 0;color:var(--muted)}
.tile__link{margin-top:auto;padding-top:20px}

/* Spalten mit Linie oben (Schritte, Infos) */
.ruled{border-top:1px solid var(--ink);padding-top:22px;display:flex;flex-direction:column;gap:10px}
.ruled--tight{padding:20px 0;gap:6px}
.ruled strong{color:var(--ink);font-weight:600}
.on-dark .ruled{border-top-color:rgba(244,241,235,.35)}
.on-dark .ruled strong{color:var(--on-dark)}
.step__no{font-family:var(--font-display);font-size:3rem;line-height:1;color:var(--slate)}
.on-dark .step__no{color:var(--slate-light)}
.steps{row-gap:40px}
.info .d{font-size:1.2rem}

/* Steinbuch-Tabelle & Datenliste */
.spec{width:100%;border-collapse:collapse;border-top:1px solid var(--ink)}
.spec th,.spec td{padding:16px 0;border-bottom:1px solid var(--rule);text-align:left;vertical-align:baseline}
.spec th{font-family:var(--font-display);font-weight:400;font-size:1.15rem;color:var(--ink)}
.spec td{font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);text-align:right}
.facts{margin:auto 0 0;border-top:1px solid var(--ink)}
.facts div{display:flex;justify-content:space-between;align-items:baseline;gap:16px;padding:14px 0;border-bottom:1px solid var(--rule)}
.facts dt{font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--slate)}
.facts dd{margin:0;font-family:var(--font-display);font-size:1.15rem;color:var(--ink);text-align:right}

/* Karten (Unterseiten) */
.card{background:var(--white);border:1px solid var(--rule);border-radius:var(--radius-card);padding:clamp(24px,3vw,36px);display:flex;flex-direction:column;gap:12px;box-shadow:0 14px 34px -26px rgba(35,34,31,.4);transition:transform .25s}
a.card{text-decoration:none;color:inherit}
a.card:hover{transform:translateY(-4px)}
.card__title{font-family:var(--font-display);font-weight:400;font-size:1.4rem;line-height:1.2;color:var(--ink);margin:0}
.card p{margin:0;color:var(--muted)}
.card__meta{margin-top:auto;padding-top:12px}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:var(--col-gap)}

/* FAQ */
.faq details{border-top:1px solid var(--rule);padding:20px 0}
.faq details:first-child{border-top-color:var(--ink)}
.faq details:last-child{border-bottom:1px solid var(--rule)}
.faq summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:24px;min-height:40px;font-family:var(--font-display);font-size:1.2rem;color:var(--ink)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--font-mono);font-size:1.3rem;color:var(--slate)}
.faq details[open] summary::after{content:"\2212"}
.faq details p{margin:12px 0 0;color:var(--muted)}

/* Formular */
.form{background:var(--white);border:1px solid var(--rule);border-radius:var(--radius-card);padding:clamp(22px,3.4vw,40px);display:flex;flex-direction:column;gap:20px}
.form__row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.field{display:flex;flex-direction:column;gap:8px;border:0;margin:0;padding:0;min-width:0}
.field label,.field legend{font-size:14px;font-weight:600;color:var(--ink);padding:0;margin-bottom:8px}
.field input,.field select,.field textarea{min-height:50px;border:1px solid var(--rule);border-radius:12px;padding:14px 16px;font:inherit;font-size:15px;background:#FAF9F6;color:var(--ink);width:100%}
.field textarea{min-height:130px;resize:vertical}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chips legend{width:100%}
.chip{position:relative}
.chip input{position:absolute;opacity:0;pointer-events:none}
.chip span{display:inline-flex;align-items:center;min-height:42px;padding:0 16px;border-radius:999px;border:1px solid var(--rule);font-size:14px;background:var(--white);cursor:pointer;transition:background .2s,color .2s}
.chip input:checked+span{background:var(--ink);color:var(--on-dark);border-color:var(--ink)}
.chip input:focus-visible+span{outline:2px solid var(--slate);outline-offset:2px}
.check{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:var(--muted)}
.check input{width:20px;height:20px;margin-top:3px;flex:none}
.hp{position:absolute!important;left:-9999px!important}
.notice{border-radius:12px;padding:16px 20px;font-weight:600;margin:0}
.notice--ok{background:#E3ECE6;color:#1F3B28}
.notice--err{background:#F3E1DB;color:#6B2414}

/* Galerie & Lightbox */
.gallery{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--col-gap)}
.gallery__item{position:relative;aspect-ratio:4/5;border-radius:var(--radius-img);overflow:hidden;background:var(--frame);border:0;padding:0;cursor:zoom-in}
.gallery__item img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .8s cubic-bezier(.2,.7,.2,1)}
.gallery__item:hover img{transform:scale(1.03)}
.lightbox{position:fixed;inset:0;z-index:200;background:rgba(26,25,23,.95);display:none;align-items:center;justify-content:center;padding:clamp(16px,4vw,48px)}
.lightbox.is-open{display:flex}
.lightbox img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;border-radius:var(--radius-img)}
.lightbox__btn{position:absolute;width:48px;height:48px;border-radius:999px;border:1px solid rgba(244,241,235,.35);background:rgba(35,34,31,.6);color:var(--on-dark);display:flex;align-items:center;justify-content:center;cursor:pointer}
.lightbox__close{top:16px;right:16px}
.lightbox__prev{left:16px;top:50%;transform:translateY(-50%)}
.lightbox__next{right:16px;top:50%;transform:translateY(-50%)}

/* Abstände, Hilfsklassen */
.mt-m{margin-top:clamp(28px,3vw,40px)}
.mt-l{margin-top:clamp(40px,5vw,56px)}
.screen-reader-text{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(1px,1px,1px,1px);white-space:nowrap}
.info a{text-decoration:none}

/* Hinweise / Rechtstexte */
.placeholder-note{background:#FFF6E0;border:1px dashed #C79A3C;border-radius:10px;padding:14px 18px;color:#6A4B0E;font-size:14px;margin:0}
.legal{padding:var(--sec-sm) 0 var(--sec)}

/* Abschluss: Steinbock hell auf dunklem Grund */
.final-cta{position:relative;overflow:hidden;background:var(--dark);padding-top:clamp(90px,11vw,150px)}
.final-cta__head{align-items:end;row-gap:28px}
.final-cta__art{display:block;width:100%;max-width:1440px;margin:clamp(24px,4vw,56px) auto 0;opacity:.9}

/* Footer – volle Breite */
.site-footer{background:var(--darker);color:var(--foot-text);font-size:14.5px;padding:56px 0 26px}
.site-footer a{color:var(--foot-text);text-decoration:none}
.site-footer a:hover{color:var(--white)}
.site-footer__grid{padding:0 clamp(16px,4vw,64px);display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:40px}
.site-footer__col{display:flex;flex-direction:column;gap:6px}
.site-footer__brand{display:flex;align-items:center;gap:12px;margin-bottom:6px}
.site-footer__brand img{width:36px;height:45px}
.site-footer__name{font-family:var(--font-display);text-transform:uppercase;letter-spacing:.16em;color:var(--on-dark)}
.site-footer__head{font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--on-dark);margin-bottom:4px}
.site-footer__bottom{margin-top:44px;padding:20px clamp(16px,4vw,64px) 0;border-top:1px solid #2F2D29;display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;font-size:13px}
.site-footer__legal{display:flex;flex-wrap:wrap;gap:18px}

/* Mobiles Kontakt-Dock */
.dock{display:none}

@media (max-width:1120px){
  .nav,.site-header__cta{display:none}
  .burger{display:inline-flex}
  .cols-4{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:860px){
  .c-1-5,.c-1-6,.c-1-7,.c-1-8,.c-7-6,.c-8-5,.c-9-4{grid-column:1 / -1}
  .cols-3,.cols-2,.gallery{grid-template-columns:minmax(0,1fr)}
  .gallery{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero__content{padding-bottom:0}
  .hero__art{position:relative;width:100%;margin-top:32px}
  .sec-head,.final-cta__head{text-align:center;justify-items:center}
  .sec-head__title,.hero__text,.stack{align-items:center;text-align:center}
  .hero__text .btn-row,.stack .btn-row{justify-content:center}
  .split .ph--fill{min-height:320px}
  .form__row{grid-template-columns:minmax(0,1fr)}
  .site-footer__grid{grid-template-columns:minmax(0,1fr)}
  .dock{display:grid;grid-template-columns:1fr 1fr;gap:8px;position:fixed;left:12px;right:12px;bottom:12px;z-index:60}
  .dock a{min-height:50px;border-radius:999px;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:13px;letter-spacing:.08em;text-transform:uppercase;text-decoration:none;box-shadow:0 12px 30px -12px rgba(0,0,0,.45)}
  .dock__call{background:var(--white);color:var(--ink);border:1px solid var(--rule)}
  .dock__cta{background:var(--ink);color:var(--on-dark)}
  body{padding-bottom:76px}
}
@media (max-width:640px){
  .btn{white-space:normal;text-align:center;width:100%}
  .btn-row{width:100%}
  .cols-4,.gallery{grid-template-columns:minmax(0,1fr)}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}