/* aquatec Gebäudeservice – Website. Lokale Ressourcen only (keine externen Requests), siehe CSP in .htaccess. */
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth;scroll-padding-top:84px;overflow-x:hidden;max-width:100%}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}

:root{
  --blue:#005ca9;
  --blue-dark:#00406e;
  --blue-light:#e8f1fa;
  --anthracite:#262626;
  --anthracite-light:#3a3a3a;
  --bg:#ffffff;
  --bg-alt:#f4f6f8;
  --paper:#ffffff;
  --line:#e2e5e9;
  --text:#1b1d1f;
  --text-muted:#565c63;
  --success:#1f7a3d;
  --success-bg:#eaf6ee;
  --error:#b3261e;
  --error-bg:#fbeceb;
  --radius:14px;
  --radius-sm:8px;
  --shadow:0 10px 30px -14px rgba(0,0,0,.22);
  --shadow-lg:0 24px 60px -20px rgba(0,0,0,.35);
  --font:"Barlow",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  --maxw:1180px;
  --header-h:76px;
}

html,body{margin:0;padding:0}
body{font-family:var(--font);color:var(--text);background:var(--bg);font-size:17px;line-height:1.55;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:var(--blue)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--blue);outline-offset:2px;border-radius:4px}
h1,h2,h3,h4{font-family:var(--font);font-weight:800;line-height:1.15;margin:0 0 .5em;color:var(--anthracite);overflow-wrap:break-word;hyphens:auto}
h1{font-size:clamp(2rem,4.2vw,3.1rem)}
h2{font-size:clamp(1.55rem,2.8vw,2.2rem)}
h3{font-size:1.2rem}
p{margin:0 0 1em}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
section{padding:72px 0}
.section-alt{background:var(--bg-alt)}
.eyebrow{display:inline-block;font-weight:700;letter-spacing:.06em;text-transform:uppercase;font-size:.82rem;color:var(--blue);margin-bottom:10px}
.section-head{max-width:720px;margin:0 0 42px}
.section-head.center{margin-inline:auto;text-align:center}
.lead{font-size:1.1rem;color:var(--text-muted)}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-family:var(--font);font-weight:700;font-size:1rem;text-decoration:none;border-radius:999px;padding:14px 28px;border:2px solid transparent;cursor:pointer;transition:transform .15s,box-shadow .15s,background .15s,color .15s;line-height:1.1}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--anthracite);color:#fff}
.btn-primary:hover{background:#000;box-shadow:var(--shadow)}
.btn-accent{background:var(--blue);color:#fff}
.btn-accent:hover{background:var(--blue-dark);box-shadow:var(--shadow)}
.btn-outline{background:transparent;color:var(--anthracite);border-color:var(--anthracite)}
.btn-outline:hover{background:var(--anthracite);color:#fff}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.65)}
.btn-outline-light:hover{background:#fff;color:var(--anthracite)}
.btn-sm{padding:9px 18px;font-size:.9rem}
.btn-block{width:100%}
.btn[disabled]{opacity:.6;cursor:not-allowed;transform:none}
.icon{width:1em;height:1em;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:0 0 auto}

/* Header */
.site-header{position:fixed;inset:0 0 auto 0;height:var(--header-h);z-index:60;background:#ffffff;border-bottom:1px solid var(--line)}
.site-header .container{height:100%;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;height:100%}
.brand img{height:34px;width:auto}
.main-nav{display:flex;align-items:center;gap:28px}
.main-nav a{color:var(--anthracite);text-decoration:none;font-weight:600;font-size:.96rem}
.main-nav a:hover{color:var(--blue)}
.header-actions{display:flex;align-items:center;gap:12px}
.header-phone{display:flex;align-items:center;gap:8px;color:var(--anthracite);text-decoration:none;font-weight:700;white-space:nowrap}
.header-phone .icon{color:var(--blue)}
.nav-toggle{display:none;background:none;border:0;padding:8px;cursor:pointer;color:var(--anthracite)}
.nav-toggle .icon{width:26px;height:26px}

@media(max-width:920px){
  .main-nav{position:fixed;top:var(--header-h);left:0;right:0;bottom:0;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:12px 20px 28px;overflow-y:auto;transform:translateX(100%);transition:transform .25s ease;border-top:1px solid var(--line)}
  .main-nav.open{transform:translateX(0)}
  .main-nav a{padding:14px 4px;border-bottom:1px solid var(--line);font-size:1.05rem}
  .header-phone span{display:none}
  .header-actions .btn-accent{display:none}
  .nav-toggle{display:inline-flex}
}

/* Hero */
.hero{position:relative;z-index:0;min-height:min(92vh,820px);display:flex;align-items:flex-end;color:#fff;overflow:hidden;margin-top:0}
.hero-slides{position:absolute;inset:0;z-index:0}
.hero-slide{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0}
.hero-slide.bg1{background-image:url('../img/hero-01-1920.webp')}
.hero-slide.bg2{background-image:url('../img/hero-02-1920.webp')}
.hero-slide.bg3{background-image:url('../img/hero-03-1920.webp')}
/* Crossfade fuer 3 Bilder, 24s Zyklus, je 8s "Slot" + 1.5s Ueberblendung an den Slot-Grenzen.
   Alle 3 Bilder nutzen dieselben Keyframes, nur durch animation-delay phasenverschoben
   (0s/-16s/-8s -> Bild 1/2/3 in dieser Reihenfolge sichtbar, rechnerisch verifiziert:
   genau ein Bild "faded in", nie 3 gleichzeitig, keine Luecke). */
.hero-slide{animation:heroFade 24s infinite}
.hero-slide.bg1{animation-delay:0s}
.hero-slide.bg2{animation-delay:-16s}
.hero-slide.bg3{animation-delay:-8s}
@keyframes heroFade{
  0%{opacity:1}
  27.083%{opacity:1}
  33.333%{opacity:0}
  93.75%{opacity:0}
  100%{opacity:1}
}
@media(prefers-reduced-motion:reduce){.hero-slide{animation:none!important;opacity:0}.hero-slide:first-child{opacity:1}}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(10,15,20,.82) 0%,rgba(10,15,20,.55) 42%,rgba(10,15,20,.25) 68%,rgba(10,15,20,.4) 100%);z-index:1}
.hero-content{position:relative;z-index:2;padding-top:160px;padding-bottom:72px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.hero-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.35);color:#fff;padding:6px 14px;border-radius:999px;font-size:.82rem;font-weight:700;letter-spacing:.02em}
.hero h1{color:#fff;max-width:14ch}
.hero .lead{color:#eef2f6;max-width:52ch;font-size:1.15rem}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}

/* Stats */
.stats-lift{transform:translateY(-40px)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.stat{background:#fff;padding:26px 20px;text-align:center}
.stat strong{display:block;font-size:2rem;font-weight:800;color:var(--blue)}
.stat span{color:var(--text-muted);font-size:.92rem}
@media(max-width:760px){.stats{grid-template-columns:repeat(2,1fr)}}

/* Cards / grids */
.grid{display:grid;gap:22px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:920px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.grid-3,.grid-4{grid-template-columns:1fr}}

.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;box-shadow:var(--shadow)}
.service-card .icon-badge{width:52px;height:52px;border-radius:12px;background:var(--blue-light);color:var(--blue);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.service-card .icon-badge .icon{width:26px;height:26px}
.service-card h3{margin-bottom:8px}
.service-card p{color:var(--text-muted);margin-bottom:0;font-size:.97rem}

/* Ablauf / Prozess */
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
@media(max-width:920px){.steps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.steps{grid-template-columns:1fr}}
.step{position:relative;padding-top:8px}
.step::before{counter-increment:step;content:counter(step,decimal-leading-zero);display:block;font-size:2rem;font-weight:800;color:var(--blue);margin-bottom:10px}
.step h3{margin-bottom:6px}
.step p{color:var(--text-muted);font-size:.96rem;margin-bottom:0}

/* Zielgruppen */
.chip-grid{display:flex;flex-wrap:wrap;gap:12px}
.chip{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:12px 20px;font-weight:600;box-shadow:var(--shadow)}
.chip .icon{color:var(--blue);width:20px;height:20px}

/* Einsatzgebiet */
.area-wrap{display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center}
@media(max-width:860px){.area-wrap{grid-template-columns:1fr}}
.area-map{background:var(--anthracite);border-radius:var(--radius);padding:30px;color:#fff}
.area-map svg{width:100%;height:auto;display:block}
.area-list{list-style:none;margin:18px 0 0;padding:0;display:grid;gap:10px}
.area-list li{display:flex;align-items:center;gap:10px;color:var(--text-muted)}
.area-list .icon{color:var(--blue);width:18px;height:18px;flex:0 0 auto}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:840px}
.faq-item{border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;overflow:hidden}
.faq-item summary{cursor:pointer;list-style:none;padding:18px 48px 18px 20px;font-weight:700;position:relative;color:var(--anthracite)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);font-size:1.4rem;color:var(--blue);font-weight:400}
.faq-item[open] summary::after{content:"\2212"}
.faq-item p{padding:0 20px 18px;color:var(--text-muted);margin:0}
.faq-more{margin-top:16px;color:var(--text-muted);font-size:.95rem}

/* Downloads */
.downloads-list{display:grid;gap:14px;max-width:860px}
.doc-card{display:flex;align-items:center;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:16px 18px;box-shadow:var(--shadow);max-width:100%}
.doc-card .doc-icon{width:44px;height:44px;border-radius:10px;background:var(--blue-light);color:var(--blue);display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.doc-card .doc-icon .icon{width:22px;height:22px}
.doc-meta{flex:1 1 auto;min-width:0}
.doc-meta strong{display:block;font-size:1rem;color:var(--anthracite);overflow-wrap:break-word}
.doc-meta span{color:var(--text-muted);font-size:.85rem}
.doc-card .btn{flex:0 0 auto}
@media(max-width:560px){
  .doc-card{flex-direction:column;align-items:stretch;text-align:center}
  .doc-card .doc-icon{margin:0 auto}
  .doc-card .btn{width:100%;justify-content:center}
}
.downloads-state{color:var(--text-muted);padding:18px 0}
.downloads-links{margin-top:28px;padding-top:24px;border-top:1px solid var(--line)}
.downloads-links h3{font-size:1rem;margin-bottom:10px}
.downloads-links ul{margin:0;padding-left:20px;color:var(--text-muted);font-size:.93rem;display:grid;gap:6px}

/* Kontakt */
.contact-wrap{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
@media(max-width:860px){.contact-wrap{grid-template-columns:1fr}}
.contact-card{background:var(--anthracite);color:#fff;border-radius:var(--radius);padding:34px}
.contact-card h3{color:#fff}
.contact-rows{display:grid;gap:16px;margin:22px 0}
.contact-row{display:flex;gap:14px;align-items:flex-start}
.contact-row .icon{color:var(--blue);width:22px;height:22px;flex:0 0 auto;margin-top:3px}
.contact-row a{color:#fff;text-decoration:none}
.contact-row a:hover{text-decoration:underline}
.contact-row span{color:#cfd6dd;font-size:.9rem;display:block}
.emergency-box{margin-top:26px;padding:18px;border-radius:var(--radius-sm);background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18)}
.emergency-box strong{display:block;margin-bottom:4px}
.emergency-box p{color:#cfd6dd;font-size:.9rem;margin-bottom:12px}

/* Footer */
.site-footer{background:var(--anthracite);color:#cfd6dd;padding:56px 0 24px;font-size:.93rem}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
@media(max-width:860px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.footer-grid{grid-template-columns:1fr}}
.footer-grid h4{color:#fff;font-size:.95rem;margin-bottom:14px}
.footer-grid ul{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.footer-grid a{color:#cfd6dd;text-decoration:none}
.footer-grid a:hover{color:#fff;text-decoration:underline}
.footer-logo img{height:30px;margin-bottom:14px}
.footer-grid p{color:#9aa3ab}
.footer-bottom{margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;color:#9aa3ab;font-size:.85rem}
.footer-bottom a{color:#9aa3ab}
.footer-bottom-flush{margin-top:0;border-top:0;padding-top:0}

/* Dialogs / Modals */
dialog{border:0;border-radius:var(--radius);padding:0;max-width:560px;width:calc(100% - 40px);box-shadow:var(--shadow-lg);position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);margin:0;max-height:min(88vh,760px)}
dialog::backdrop{background:rgba(10,12,14,.6)}
dialog[open]{display:flex;flex-direction:column}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:22px 24px 0}
.modal-head h2,.modal-head h3{margin-bottom:0;font-size:1.3rem}
.modal-close{background:none;border:0;cursor:pointer;color:var(--text-muted);padding:6px;border-radius:50%;line-height:0}
.modal-close:hover{background:var(--bg-alt);color:var(--text)}
.modal-close .icon{width:22px;height:22px}
.modal-body{padding:18px 24px 26px;overflow-y:auto}
.modal-body p:last-child{margin-bottom:0}
.modal-sm{max-width:420px}
.modal-sm .modal-body{text-align:center}
.modal-sm .modal-icon{width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:4px auto 16px}
.modal-sm .modal-icon .icon{width:28px;height:28px}
.modal-success .modal-icon{background:var(--success-bg);color:var(--success)}
.modal-error .modal-icon{background:var(--error-bg);color:var(--error)}
.modal-loading{text-align:center}
.spinner{width:38px;height:38px;border-radius:50%;border:3px solid var(--line);border-top-color:var(--blue);margin:6px auto 14px;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
@media(prefers-reduced-motion:reduce){.spinner{animation:spin 1.6s linear infinite}}
.cost-note{background:var(--blue-light);color:var(--blue-dark);border-radius:var(--radius-sm);padding:10px 14px;font-size:.88rem;margin:14px 0}

/* Forms */
.form-row{display:grid;gap:6px;margin-bottom:16px}
.form-row.two{grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:520px){.form-row.two{grid-template-columns:1fr}}
.form-row label{font-weight:600;font-size:.92rem;color:var(--anthracite)}
.form-row input[type=text],.form-row input[type=email],.form-row input[type=tel],.form-row select,.form-row textarea{font-family:var(--font);font-size:1rem;padding:11px 13px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;color:var(--text);width:100%}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{border-color:var(--blue)}
.form-row textarea{resize:vertical;min-height:110px}
.form-check{display:flex;align-items:flex-start;gap:10px;font-size:.88rem;color:var(--text-muted)}
.form-check input{margin-top:3px}
.form-check a{color:var(--blue)}
.form-error-text{color:var(--error);font-size:.85rem;min-height:1.1em}
.hp-field{position:absolute;left:-9999px;top:-9999px}

/* Admin */
.admin-body{background:var(--bg-alt);min-height:100vh}
.admin-shell{max-width:760px;margin:0 auto;padding:40px 20px}
.admin-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
.admin-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.admin-header img{height:28px}
.table{width:100%;border-collapse:collapse;margin-top:10px}
.table th,.table td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--line);font-size:.92rem;vertical-align:middle}
.table th{color:var(--text-muted);font-weight:600;font-size:.82rem;text-transform:uppercase;letter-spacing:.04em}
.badge{display:inline-block;background:var(--blue-light);color:var(--blue-dark);border-radius:999px;padding:3px 10px;font-size:.78rem;font-weight:700}
.login-shell{max-width:380px;margin:12vh auto 0;padding:0 20px}
.alert{border-radius:var(--radius-sm);padding:12px 16px;margin-bottom:18px;font-size:.92rem}
.alert-error{background:var(--error-bg);color:var(--error)}
.alert-success{background:var(--success-bg);color:var(--success)}
.icon-btn{background:none;border:0;cursor:pointer;color:var(--error);padding:6px;border-radius:6px}
.icon-btn:hover{background:var(--error-bg)}
.upload-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:18px}
.file-input-label{display:inline-flex;align-items:center;gap:8px;border:1px dashed var(--line);border-radius:var(--radius-sm);padding:10px 16px;cursor:pointer;font-weight:600;font-size:.9rem}
.file-input-label input{display:none}

/* Legal pages */
.legal-body main{padding-top:calc(var(--header-h) + 50px);padding-bottom:70px}
.legal-body h2{margin-top:1.6em}
.legal-body ul{padding-left:1.3em}
.legal-content{max-width:820px}
.legal-content table{border-collapse:collapse;width:100%;margin:1em 0}
.legal-content th,.legal-content td{border:1px solid var(--line);padding:8px 10px;text-align:left;font-size:.93rem}
.back-link{display:inline-flex;align-items:center;gap:6px;margin-bottom:28px;color:var(--text-muted);text-decoration:none;font-weight:600;font-size:.92rem}
.back-link:hover{color:var(--blue)}
.icon-flip{transform:rotate(180deg)}

/* 404 */
.error-page{min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:40px 20px}
.error-page .code{font-size:5rem;font-weight:800;color:var(--blue);margin-bottom:0}

/* Skip link */
.skip-link{position:fixed;top:-60px;left:12px;background:var(--anthracite);color:#fff;padding:12px 18px;border-radius:8px;z-index:200;text-decoration:none;transition:top .15s}
.skip-link:focus{top:12px}

/* Utility */
.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.mt-0{margin-top:0}
.mt-16{margin-top:16px}
.mt-24em{margin-top:2.4em}
.modal-ok-btn{margin-top:16px}
.section-flush{padding:0}
.flex-row-gap{display:flex;gap:10px}
.flex-row-gap-center{display:flex;gap:10px;margin-top:18px;justify-content:center}
.text-right{text-align:right}
.text-muted{color:var(--text-muted)}
.mb-4{margin-bottom:4px}
.mb-18{margin-bottom:18px}
.mb-22{margin-bottom:22px}
.h-30{height:30px}
.fs-95{font-size:.95rem}
.fs-13{font-size:1.3rem}
.fs-14{font-size:1.4rem}
.admin-shell-narrow{max-width:480px}
.upload-title-input{flex:1;min-width:220px;padding:11px 13px;border:1px solid var(--line);border-radius:var(--radius-sm);font-family:var(--font)}