/* =====================================================================
   BAUMEISTER WIEN — Design System
   Aesthetik: architektonisch / industriell — Anthrazit, Beton, Signal-Amber
   ===================================================================== */

:root{
  --ink:#15171C;          /* Anthrazit, fast schwarz */
  --ink-soft:#22252D;
  --ink-700:#31353F;
  --paper:#F4F1E9;        /* warmer Beton-Ton */
  --paper-2:#EAE5D8;
  --concrete:#C7C0B0;
  --line:#D8D2C4;
  --amber:#F2A900;        /* Signal-Amber (Bau) */
  --amber-deep:#C98700;
  --blue:#1C3B5A;         /* Blueprint-Blau */
  --blue-soft:#27557f;
  --white:#FFFFFF;
  --good:#2F7D52;
  --shadow:0 18px 50px -22px rgba(21,23,28,.55);
  --shadow-sm:0 8px 24px -14px rgba(21,23,28,.5);

  --font-display:"Big Shoulders Display","Arial Narrow",sans-serif;
  --font-body:"Hanken Grotesk",system-ui,sans-serif;
  --font-mono:"Space Mono","Courier New",monospace;

  --maxw:1200px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--paper);
  line-height:1.6;
  font-size:17px;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

/* Blueprint-Rasterhintergrund */
.bp-grid{
  background-image:
    linear-gradient(rgba(28,59,90,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(28,59,90,.05) 1px,transparent 1px);
  background-size:34px 34px;
}

/* ---------- Typografie ---------- */
h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;line-height:.96;letter-spacing:-.01em;text-transform:uppercase}
h1{font-size:clamp(3rem,8vw,7rem)}
h2{font-size:clamp(2.1rem,4.6vw,3.8rem)}
h3{font-size:clamp(1.4rem,2.4vw,2rem)}
h4{font-size:1.15rem;letter-spacing:.02em}
p{margin-bottom:1rem}
.lead{font-size:clamp(1.1rem,1.7vw,1.35rem);line-height:1.5}
.mono{font-family:var(--font-mono)}
.eyebrow{
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.28em;
  text-transform:uppercase;color:var(--amber-deep);font-weight:700;
  display:inline-flex;align-items:center;gap:.6rem;
}
.eyebrow::before{content:"";width:34px;height:2px;background:var(--amber)}
.eyebrow.on-dark{color:var(--amber)}

/* ---------- Layout ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
section{padding:clamp(56px,8vw,110px) 0}
.dark{background:var(--ink);color:var(--paper)}
.dark h1,.dark h2,.dark h3{color:var(--white)}
.blue{background:var(--blue);color:#eaf1f8}
.blue h2,.blue h3{color:#fff}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.6rem;
  font-family:var(--font-display);font-weight:700;text-transform:uppercase;
  letter-spacing:.04em;font-size:1.05rem;
  padding:15px 30px;border:2px solid var(--ink);background:var(--amber);color:var(--ink);
  cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,background .2s;
  box-shadow:5px 5px 0 var(--ink);
}
.btn:hover{transform:translate(-2px,-2px);box-shadow:7px 7px 0 var(--ink)}
.btn:active{transform:translate(2px,2px);box-shadow:2px 2px 0 var(--ink)}
.btn-ghost{background:transparent;color:var(--ink);box-shadow:5px 5px 0 var(--concrete)}
.btn.on-dark{border-color:var(--amber);box-shadow:5px 5px 0 var(--amber-deep)}
.btn-line{background:transparent;border-color:currentColor;box-shadow:none;padding:12px 24px}
.btn-line:hover{background:var(--ink);color:var(--paper);transform:none;box-shadow:none}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;background:rgba(244,241,233,.92);
  backdrop-filter:blur(8px);border-bottom:2px solid var(--ink);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px;gap:20px}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--font-display);
  font-weight:800;font-size:1.5rem;text-transform:uppercase;letter-spacing:-.01em}
.brand .mark{width:38px;height:38px;flex:none}
.nav-links{display:flex;gap:6px;align-items:center}
.nav-links a{
  font-family:var(--font-display);font-weight:600;text-transform:uppercase;
  font-size:1rem;letter-spacing:.02em;padding:9px 13px;border:2px solid transparent;
  transition:.15s;
}
.nav-links a:hover{border-color:var(--ink)}
.nav-links a[aria-current="page"]{background:var(--ink);color:var(--paper)}
.nav-cta{background:var(--amber);border:2px solid var(--ink)!important;box-shadow:3px 3px 0 var(--ink)}
.burger{display:none;background:none;border:2px solid var(--ink);width:46px;height:42px;
  cursor:pointer;flex-direction:column;gap:5px;align-items:center;justify-content:center}
.burger span{width:22px;height:2.5px;background:var(--ink)}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--ink);color:var(--paper);overflow:hidden;
  padding:clamp(70px,11vw,150px) 0 clamp(60px,9vw,120px)}
.hero .bp-grid{position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(rgba(242,169,0,.07) 1px,transparent 1px),
  linear-gradient(90deg,rgba(242,169,0,.07) 1px,transparent 1px);background-size:42px 42px}
.hero-inner{position:relative;z-index:2;max-width:920px}
.hero h1{color:#fff;margin:.4rem 0 1.3rem}
.hero h1 .am{color:var(--amber);display:block}
.hero .lead{color:#cfcabd;max-width:640px;margin-bottom:2rem}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--ink-700);
  margin-top:clamp(40px,6vw,72px);border:1px solid var(--ink-700)}
.hero-stats .stat{background:var(--ink);padding:24px 20px}
.hero-stats .n{font-family:var(--font-display);font-weight:800;font-size:2.4rem;color:var(--amber);line-height:1}
.hero-stats .l{font-size:.85rem;color:#b9b3a5;margin-top:8px;text-transform:uppercase;letter-spacing:.06em}
.hero-badge{display:inline-flex;align-items:center;gap:10px;border:1px solid var(--ink-700);
  padding:8px 16px;font-family:var(--font-mono);font-size:.72rem;letter-spacing:.18em;
  text-transform:uppercase;color:var(--amber)}
.hero-badge .dot{width:8px;height:8px;background:var(--good);border-radius:50%;
  box-shadow:0 0 0 0 rgba(47,125,82,.6);animation:pulse 2.2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(47,125,82,.55)}70%{box-shadow:0 0 0 9px rgba(47,125,82,0)}100%{box-shadow:0 0 0 0 rgba(47,125,82,0)}}

/* ---------- Section heads ---------- */
.sec-head{max-width:760px;margin-bottom:clamp(34px,5vw,56px)}
.sec-head h2{margin:.6rem 0 1rem}
.sec-head p{color:var(--ink-700)}
.dark .sec-head p,.blue .sec-head p{color:#c9c4b8}

/* ---------- Cards / feature grid ---------- */
.grid{display:grid;gap:22px}
.g-2{grid-template-columns:repeat(2,1fr)}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--white);border:2px solid var(--ink);padding:30px;position:relative;
  transition:transform .18s ease,box-shadow .18s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm)}
.card .num{font-family:var(--font-mono);color:var(--amber-deep);font-size:.78rem;letter-spacing:.2em;font-weight:700}
.card h3{margin:.5rem 0 .7rem;font-size:1.45rem}
.card p{color:var(--ink-700);font-size:.98rem;margin:0}
.card .ico{width:46px;height:46px;margin-bottom:16px}

/* Leistungs-Liste (Baumeister-Aufgaben) */
.tasklist{display:grid;grid-template-columns:repeat(2,1fr);gap:0;border:2px solid var(--ink)}
.tasklist .ti{padding:26px 28px;border-bottom:2px solid var(--ink);border-right:2px solid var(--ink);background:var(--white)}
.tasklist .ti:nth-child(2n){border-right:none}
.tasklist .ti:nth-last-child(-n+2){border-bottom:none}
.tasklist .ti .k{font-family:var(--font-mono);color:var(--amber-deep);font-weight:700;font-size:.8rem}
.tasklist .ti h4{margin:.4rem 0 .5rem;font-size:1.2rem}
.tasklist .ti p{margin:0;font-size:.95rem;color:var(--ink-700)}

/* ---------- Kosten / Preisblöcke ---------- */
.price-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.price-card{border:2px solid var(--ink);background:var(--white);overflow:hidden}
.price-card .pc-top{background:var(--ink);color:var(--paper);padding:22px 26px;display:flex;
  justify-content:space-between;align-items:flex-end;gap:12px}
.price-card .pc-top h3{color:#fff;font-size:1.5rem}
.price-card .pc-top .tag{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.15em;
  color:var(--amber);text-transform:uppercase;white-space:nowrap}
.price-card .pc-body{padding:26px}
.price-card .big{font-family:var(--font-display);font-weight:800;font-size:clamp(2.2rem,4vw,3.1rem);
  line-height:1;color:var(--ink)}
.price-card .big span{font-size:1.1rem;color:var(--ink-700);font-family:var(--font-body);font-weight:600}
.price-card .unit{font-family:var(--font-mono);font-size:.8rem;color:var(--amber-deep);letter-spacing:.1em;margin-top:6px}
.price-card ul{list-style:none;margin-top:18px;border-top:1px dashed var(--line);padding-top:16px}
.price-card li{display:flex;justify-content:space-between;padding:7px 0;font-size:.95rem;border-bottom:1px dotted var(--line)}
.price-card li span:last-child{font-family:var(--font-mono);font-weight:700;color:var(--blue)}

/* ---------- Kalkulator ---------- */
.calc{background:var(--white);border:2px solid var(--ink);box-shadow:var(--shadow)}
.calc-grid{display:grid;grid-template-columns:1.05fr .95fr}
.calc-form{padding:clamp(26px,4vw,42px)}
.calc-out{background:var(--ink);color:var(--paper);padding:clamp(26px,4vw,42px);position:relative;overflow:hidden}
.calc-out .bp-grid{position:absolute;inset:0;opacity:.4}
.calc-out>*{position:relative;z-index:2}
.field{margin-bottom:24px}
.field label{display:block;font-family:var(--font-display);font-weight:700;text-transform:uppercase;
  font-size:1rem;letter-spacing:.02em;margin-bottom:10px}
.seg{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.seg-4{grid-template-columns:repeat(2,1fr)}
.seg button{font-family:var(--font-body);font-weight:600;font-size:.92rem;padding:12px 10px;
  border:2px solid var(--ink);background:var(--white);cursor:pointer;transition:.15s;text-align:left;line-height:1.2}
.seg button small{display:block;font-weight:500;color:var(--ink-700);font-size:.78rem;margin-top:3px}
.seg button.active{background:var(--ink);color:var(--paper)}
.seg button.active small{color:#bdb8ab}
.range-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.range-row .val{font-family:var(--font-mono);font-weight:700;color:var(--blue);font-size:1.1rem}
input[type=range]{width:100%;-webkit-appearance:none;appearance:none;height:6px;background:var(--paper-2);
  border:1px solid var(--line);outline:none}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:26px;height:26px;background:var(--amber);
  border:2px solid var(--ink);cursor:pointer}
input[type=range]::-moz-range-thumb{width:24px;height:24px;background:var(--amber);border:2px solid var(--ink);cursor:pointer}
.calc-out .ckr{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.2em;color:var(--amber);text-transform:uppercase}
.calc-out .total{font-family:var(--font-display);font-weight:800;font-size:clamp(2.6rem,6vw,4.2rem);
  color:#fff;line-height:1;margin:10px 0 4px}
.calc-out .range{font-family:var(--font-mono);color:#cfcabd;font-size:1rem}
.calc-out .brk{margin-top:26px;border-top:1px solid var(--ink-700);padding-top:18px}
.calc-out .brk .row{display:flex;justify-content:space-between;padding:8px 0;font-size:.95rem;color:#d7d2c6;border-bottom:1px dotted var(--ink-700)}
.calc-out .brk .row b{color:var(--amber);font-family:var(--font-mono)}
.calc-note{font-size:.8rem;color:#9d978a;margin-top:18px;line-height:1.45}

/* ---------- Baufirmen ---------- */
.firm-card{background:var(--white);border:2px solid var(--ink);padding:26px;display:flex;flex-direction:column;gap:14px}
.firm-card .badge{align-self:flex-start;font-family:var(--font-mono);font-size:.68rem;letter-spacing:.14em;
  text-transform:uppercase;background:var(--amber);border:2px solid var(--ink);padding:4px 10px;font-weight:700}
.firm-card h3{font-size:1.35rem}
.firm-card .stars{color:var(--amber-deep);letter-spacing:2px;font-size:1.05rem}
.firm-card .meta{font-family:var(--font-mono);font-size:.8rem;color:var(--ink-700)}
.firm-card ul{list-style:none;font-size:.92rem;color:var(--ink-700)}
.firm-card li{padding:3px 0 3px 20px;position:relative}
.firm-card li::before{content:"›";position:absolute;left:0;color:var(--amber-deep);font-weight:800}

/* ---------- Steps ---------- */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:2px solid currentColor}
.steps .st{counter-increment:s;padding:28px 24px;border-right:2px solid currentColor;position:relative}
.steps .st:last-child{border-right:none}
.steps .st::before{content:counter(s,decimal-leading-zero);font-family:var(--font-display);
  font-weight:800;font-size:2.4rem;color:var(--amber);display:block;margin-bottom:10px}
.steps .st h4{margin-bottom:8px}
.steps .st p{font-size:.92rem;margin:0;opacity:.82}

/* ---------- Forms ---------- */
.form-card{background:var(--white);border:2px solid var(--ink);padding:clamp(26px,4vw,44px)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.fg{margin-bottom:18px}
.fg label{display:block;font-family:var(--font-display);font-weight:700;text-transform:uppercase;
  font-size:.95rem;letter-spacing:.02em;margin-bottom:7px}
.fg label .req{color:var(--amber-deep)}
.fg input,.fg select,.fg textarea{
  width:100%;font-family:var(--font-body);font-size:1rem;padding:13px 15px;
  border:2px solid var(--ink);background:var(--paper);color:var(--ink);
}
.fg input:focus,.fg select:focus,.fg textarea:focus{outline:none;background:#fff;box-shadow:inset 0 0 0 2px var(--amber)}
.fg textarea{min-height:130px;resize:vertical}
.dropzone{border:2px dashed var(--ink);background:var(--paper-2);padding:30px;text-align:center;
  cursor:pointer;transition:.18s}
.dropzone:hover,.dropzone.drag{background:#fff;border-color:var(--amber-deep)}
.dropzone .dz-ico{width:42px;height:42px;margin:0 auto 12px}
.dropzone strong{font-family:var(--font-display);text-transform:uppercase;display:block;margin-bottom:4px}
.dropzone small{color:var(--ink-700);font-family:var(--font-mono);font-size:.75rem}
.file-name{margin-top:10px;font-family:var(--font-mono);font-size:.85rem;color:var(--blue);font-weight:700}
.checkrow{display:flex;gap:10px;align-items:flex-start;font-size:.9rem;color:var(--ink-700)}
.checkrow input{width:auto;margin-top:4px}

.alert{padding:18px 22px;border:2px solid var(--ink);font-family:var(--font-body);margin-bottom:24px}
.alert.ok{background:#e8f4ec;border-color:var(--good)}
.alert.err{background:#fdeceb;border-color:#c0392b}
.alert h4{margin-bottom:4px}

/* ---------- Blog ---------- */
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{background:var(--white);border:2px solid var(--ink);display:flex;flex-direction:column;
  transition:transform .18s,box-shadow .18s}
.post-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-sm)}
.post-card .pc-cat{background:var(--ink);color:var(--paper);font-family:var(--font-mono);
  font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;padding:8px 18px;display:flex;
  justify-content:space-between}
.post-card .pc-cat .c{color:var(--amber)}
.post-card .pc-in{padding:24px;display:flex;flex-direction:column;flex:1}
.post-card h3{font-size:1.35rem;margin-bottom:10px;line-height:1}
.post-card p{font-size:.93rem;color:var(--ink-700);flex:1}
.post-card .pc-foot{margin-top:16px;font-family:var(--font-display);font-weight:700;
  text-transform:uppercase;color:var(--amber-deep);display:flex;align-items:center;gap:8px;font-size:.95rem}
.post-card .pc-foot::after{content:"→";transition:.2s}
.post-card:hover .pc-foot::after{transform:translateX(5px)}

/* Artikel */
.article{max-width:780px;margin:0 auto}
.article .meta{font-family:var(--font-mono);font-size:.78rem;letter-spacing:.1em;color:var(--amber-deep);
  text-transform:uppercase;margin-bottom:14px}
.article h1{font-size:clamp(2.2rem,5vw,3.6rem);margin-bottom:20px}
.article .body{font-size:1.08rem}
.article .body h2{font-size:1.7rem;margin:2.2rem 0 .8rem;text-transform:none}
.article .body h3{font-size:1.3rem;margin:1.6rem 0 .6rem;text-transform:none}
.article .body ul{margin:0 0 1.2rem 1.2rem}
.article .body li{margin-bottom:.5rem}
.article .body blockquote{border-left:4px solid var(--amber);padding:6px 0 6px 20px;margin:1.4rem 0;
  font-size:1.15rem;color:var(--blue);font-style:italic}
.article .tip{background:var(--paper-2);border:2px solid var(--ink);padding:22px 24px;margin:1.6rem 0}
.article .tip strong{font-family:var(--font-display);text-transform:uppercase;color:var(--amber-deep)}

/* ---------- CTA band ---------- */
.cta-band{background:var(--amber);border-top:3px solid var(--ink);border-bottom:3px solid var(--ink)}
.cta-band .wrap{display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;
  padding-top:46px;padding-bottom:46px}
.cta-band h2{color:var(--ink);max-width:680px}
.cta-band .btn{background:var(--ink);color:var(--amber);border-color:var(--ink);box-shadow:5px 5px 0 rgba(21,23,28,.35)}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#b6b1a4;padding-top:64px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px;border-bottom:1px solid var(--ink-700)}
.site-footer h4{color:#fff;font-size:1.05rem;letter-spacing:.04em;margin-bottom:16px}
.site-footer a{color:#b6b1a4;transition:.15s}
.site-footer a:hover{color:var(--amber)}
.foot-grid ul{list-style:none}
.foot-grid li{padding:5px 0;font-size:.95rem}
.foot-brand .brand{color:#fff;margin-bottom:14px}
.foot-brand p{font-size:.93rem;color:#9d978a}
.company-box{border:1px solid var(--ink-700);padding:18px;margin-top:8px;font-size:.88rem;line-height:1.7}
.company-box .cn{color:var(--amber);font-family:var(--font-display);font-weight:700;text-transform:uppercase;font-size:1.05rem}
.seo-keywords{padding:30px 0;border-bottom:1px solid var(--ink-700)}
.seo-keywords h5{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.2em;color:#6f6a5e;text-transform:uppercase;margin-bottom:12px}
.seo-keywords p{font-size:.8rem;color:#5f5b50;line-height:1.9}
.seo-keywords a{color:#6f6a5e}
.foot-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:22px 0 34px;font-size:.82rem;color:#6f6a5e}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media(max-width:980px){
  .g-4{grid-template-columns:repeat(2,1fr)}
  .blog-grid{grid-template-columns:repeat(2,1fr)}
  .calc-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .steps .st:nth-child(2n){border-right:none}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
  body{font-size:16px}
  .nav-links{position:fixed;inset:74px 0 auto 0;flex-direction:column;background:var(--paper);
    border-bottom:2px solid var(--ink);padding:16px 24px;gap:6px;display:none}
  .nav-links.open{display:flex}
  .nav-links a{width:100%}
  .burger{display:flex}
  .g-2,.g-3,.g-4,.price-grid,.blog-grid,.tasklist,.form-row{grid-template-columns:1fr}
  .tasklist .ti{border-right:none}
  .steps{grid-template-columns:1fr}
  .steps .st{border-right:none;border-bottom:2px solid currentColor}
  .steps .st:last-child{border-bottom:none}
  .foot-grid{grid-template-columns:1fr}
  .cta-band .wrap{flex-direction:column;align-items:flex-start}
}