/* ============================================================
   SmartLife – Online · Startseite
   start.css — allgemeine Styles (Desktop UND Mobil)
   Zusätzlich laden: start_desk.css (ab 881px) und start_mob.css (bis 600px)
   ============================================================ */

/* ---------- Schrift: Inter (lokal aus frontend/fonts/inter/, Artefakt aus `npm run build:fonts`) ---------- */
@font-face{
  font-family:"Inter";
  font-style:normal;
  font-display:swap;
  font-weight:100 900;
  src:url("../fonts/inter/inter-latin-wght-normal.woff2?v=5.3.0") format("woff2-variations");
  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;
}

/* ---------- Design-Tokens ---------- */
:root{
  --bg:#0d1210; --surface:#141a17; --text:#e7ece8;
  --muted:rgba(231,236,232,.62); --divider:rgba(231,236,232,.14);
  --brand:#009632; --brand-ink:#35c266; --brand-dim:rgba(0,150,50,.12);
  --accent2:#3296fa; --accent2-ink:#5aabfb;
  --band:#0b3a1e; --band-glow:#12602d;
  --bloom:rgba(0,150,50,.14); --shade:rgba(0,0,0,.35);
  --error:#ff6b6b;
  --tag-bg:#3f424d; --tag-text:#f3f5fe;
  --radius-md:8px; --radius-lg:14px;
  --shadow-dialog:0 0 0 1px #9397ab, 0 16px 40px rgba(0,0,0,.65);
}
[data-theme="light"]{
  --bg:#ffffff; --surface:#f3f7f4; --text:#131a15;
  --muted:rgba(19,26,21,.62); --divider:rgba(19,26,21,.14);
  --brand-ink:#017c29; --accent2-ink:#1d6fd1;
  --bloom:rgba(0,150,50,.07); --shade:rgba(0,0,0,.04);
  --tag-bg:#e3e9e4; --tag-text:#131a15;
  --shadow-dialog:0 0 0 1px rgba(19,26,21,.18), 0 16px 40px rgba(0,0,0,.18);
}

/* ---------- Basis ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;overflow-x:clip;
  font-family:"Inter",system-ui,sans-serif;font-size:16px;line-height:1.6;
  color:var(--text);
  background:
    radial-gradient(1100px 640px at 85% -140px, var(--bloom), transparent 60%),
    radial-gradient(900px 700px at -8% 100%, var(--shade), transparent 55%),
    var(--bg);
  text-wrap:pretty;-webkit-tap-highlight-color:transparent;
  transition:color .4s ease,background-color .4s ease;
}
h1,h2,h3{font-weight:500}
a{color:var(--brand-ink);text-decoration:none;text-underline-offset:3px}
a:hover{color:var(--accent2-ink)}
img{display:block;max-width:100%}
::selection{background:rgba(0,150,50,.30)}
:focus{outline:none}
:focus-visible{outline:2px solid var(--brand-ink);outline-offset:2px}
[hidden]{display:none!important}
.container{max-width:1200px;margin:0 auto;padding-inline:clamp(20px,4vw,40px)}
.sl-visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}

/* Weiche Trennlinie (läuft an den Enden aus) */
.sl-rule{height:1px;border:0;background:linear-gradient(to right, transparent, var(--divider) 48px, var(--divider) calc(100% - 48px), transparent)}
.sl-rule--top{margin:40px 0 0}

/* ---------- Animationen ---------- */
@keyframes slBounce{0%,100%{transform:translateY(0)}50%{transform:translateY(5px)}}
.sl-bounce{display:inline-flex;animation:slBounce 2s ease-in-out infinite}
@keyframes slReveal{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
@supports (animation-timeline: view()){
  html.sl-reveal [data-reveal]{animation:slReveal .7s ease both;animation-timeline:view();animation-range:entry 0% entry 35%}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .sl-bounce{animation:none!important}
  html.sl-reveal [data-reveal]{animation:none}
}

/* ---------- Komponenten ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  cursor:pointer;text-decoration:none;font-family:inherit;font-weight:500;
  font-size:14px;line-height:1.2;color:var(--text);
  background:transparent;border:1px solid transparent;
  padding:8px 12px;border-radius:var(--radius-md);
}
.btn svg{display:block}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn-primary{color:var(--brand-ink);border-color:var(--brand-ink)}
.btn-primary:hover{background:var(--brand-dim);color:var(--brand-ink)}
.btn-primary:active{background:rgba(0,150,50,.22)}
.btn-secondary{border-color:var(--divider);color:var(--text)}
.btn-secondary:hover{background:rgba(128,128,128,.10);color:var(--text)}
.btn-secondary:active{background:rgba(128,128,128,.18)}

.card{display:flex;flex-direction:column;border-radius:var(--radius-md);background:var(--surface)}

.tag{display:inline-flex;align-items:center;font-size:11px;letter-spacing:.02em;padding:3px 10px;border-radius:6px}
.tag-neutral{background:var(--tag-bg);color:var(--tag-text)}

.field label{display:block;font-size:13px;font-weight:500;color:var(--text);margin-bottom:5px}
.input{
  width:100%;min-height:36px;padding:12px;font:inherit;font-size:16px;
  color:var(--text);caret-color:var(--brand-ink);background:var(--bg);
  border:1px solid var(--divider);border-radius:var(--radius-md);
}
.input:hover{border-color:var(--muted)}
.input:focus-visible{border-color:var(--brand-ink);outline-offset:0}
textarea.input{resize:vertical;min-height:96px}
.input[aria-invalid="true"]{border-color:var(--error)}

.dialog-backdrop{position:fixed;inset:0;z-index:9000;display:grid;place-items:center;padding:16px;background:rgba(8,12,9,.55)}
.dialog{width:min(440px,100%);display:flex;flex-direction:column;gap:12px;padding:22px;border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow-dialog)}
.dialog-body{font-size:15px;line-height:1.65;margin:0}
.dialog-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:6px}

.lighten{mix-blend-mode:lighten;background-color:transparent}

/* ---------- Header ---------- */
.sl-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:var(--bg);
  background:color-mix(in srgb, var(--bg) 85%, transparent);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--divider);
  transition:box-shadow .3s ease;
}
.sl-header.sl-scrolled{box-shadow:0 8px 28px rgba(0,0,0,.28)}
.sl-header-inner{display:flex;align-items:center;gap:20px;padding-block:12px}
.sl-brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:600;font-size:17px;letter-spacing:.2px}
.sl-brand:hover{color:var(--text)}
.sl-mark{position:relative;width:15px;height:15px;flex:none}
.sl-mark-dot{position:absolute;inset:0;border-radius:50%;background:var(--brand)}
.sl-mark-dot2{position:absolute;right:-4px;bottom:-3px;width:7px;height:7px;border-radius:50%;background:var(--accent2)}
.sl-nav{display:none;align-items:center;gap:24px;margin-left:auto;font-size:14px}
.sl-nav a{color:var(--text)}
.sl-nav a:hover{color:var(--brand-ink)}
.sl-iconbtn{
  display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;
  border-radius:10px;border:1px solid var(--divider);background:transparent;color:var(--text);cursor:pointer;
}
.sl-iconbtn:hover{border-color:var(--brand-ink);color:var(--brand-ink)}
.sl-themebtn{margin-left:auto}
.sl-header-cta{display:none;padding:9px 16px;font-size:14px}
/* Theme-Icons: Standard (dark) zeigt Mond, hell zeigt Sonne */
.icon-sun{display:none}
[data-theme="light"] .icon-sun{display:block}
[data-theme="light"] .icon-moon{display:none}
/* Burger: Standard zeigt Menü-Icon, geöffnet das X */
.icon-close{display:none}
.sl-header.is-open .icon-close{display:block}
.sl-header.is-open .icon-menu{display:none}
.sl-mobilemenu{display:none;flex-direction:column;gap:2px;padding:8px clamp(20px,4vw,40px) 16px;border-top:1px solid var(--divider)}
.sl-header.is-open .sl-mobilemenu{display:flex}
.sl-mobilemenu a:not(.btn){display:block;padding:12px 4px;font-size:16px;color:var(--text);border-bottom:1px solid var(--divider)}
.sl-mobilemenu a:not(.btn):hover{color:var(--brand-ink)}
.sl-mobilemenu .btn{margin-top:14px;padding:12px;font-size:15px;width:100%}

/* ---------- Kicker (Sektions-Auszeichnung) ---------- */
.sl-kicker{display:inline-flex;align-items:center;gap:12px;font-size:13px;letter-spacing:.06em;text-transform:uppercase;color:var(--brand-ink)}
.sl-kicker::before{content:"";width:36px;height:1px;background:var(--brand)}

/* ---------- Hero ---------- */
.sl-hero{position:relative;padding:132px 0 48px;scroll-margin-top:90px}
.sl-hero > :not(.sl-heroart){position:relative}
.sl-heroart{
  display:none;position:absolute;top:48px;right:-40px;bottom:0;width:58%;pointer-events:none;
  -webkit-mask-image:linear-gradient(to left, black 55%, transparent);
  mask-image:linear-gradient(to left, black 55%, transparent);
}
.sl-heroart img{width:100%;height:100%;object-fit:cover;object-position:right center}
.sl-hero h1{margin:18px 0 0;font-size:clamp(34px,4.8vw,62px);line-height:1.08;letter-spacing:-.015em;max-width:22ch}
.sl-hero h1 span{display:block}
.sl-accent{display:inline!important;color:var(--brand-ink)}
.sl-sub{margin:22px 0 0;font-size:17px;line-height:1.65;max-width:58ch;color:var(--text)}
.sl-herocta{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-top:28px}
.sl-herocta .btn{padding:12px 22px;font-size:15px}
.sl-hero-note{margin:12px 0 0;font-size:13px;color:var(--muted)}
.sl-herobullets{list-style:none;margin:44px 0 0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px 24px}
.sl-herobullets li{display:flex;gap:10px;font-size:14.5px;line-height:1.5;color:var(--muted)}
.sl-herobullets strong{color:var(--text);font-weight:500}
.sl-check{flex:none;margin-top:4px;color:var(--brand-ink)}
.sl-scrollcue{display:inline-flex;align-items:center;gap:10px;margin-top:44px;font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.sl-scrollcue:hover{color:var(--brand-ink)}

/* ---------- Kennzahlen-Band ---------- */
.sl-band{background:radial-gradient(900px 420px at 85% -40%, var(--band-glow), transparent 64%), var(--band);padding:46px 0;margin-top:24px}
.sl-stats{display:grid;grid-template-columns:repeat(4,auto);justify-content:space-between;gap:32px 40px}
.sl-stat-num{margin:0;font-size:clamp(34px,3.4vw,46px);font-weight:500;line-height:1.1;color:#eef5ee;font-feature-settings:'tnum' 1}
.sl-stat-label{margin:8px 0 0;font-size:13px;letter-spacing:.06em;text-transform:uppercase;color:rgba(238,245,238,.66)}
/* Tablet: 2×2 statt gequetschter Vierer-Reihe (Labels sonst 3-zeilig) */
@media (min-width: 601px) and (max-width: 880px){
  .sl-stats{grid-template-columns:repeat(2,1fr);gap:28px 32px}
}

/* ---------- Sektionen ---------- */
.sl-sec{padding:56px 0 24px;scroll-margin-top:90px}
.sl-sec h2{margin:14px 0 26px;font-size:clamp(26px,3vw,34px);letter-spacing:-.012em}
#problem{padding:72px 0 24px}
#problem h2{max-width:24ch}
#leistungen{padding:72px 0 32px}
#leistungen h2,#anwendungsfaelle h2,#arbeitsproben h2{margin-bottom:8px}
#kontakt{padding:64px 0 32px}
#faq{padding:56px 0 40px}

/* ---------- Problem-Sektion ---------- */
.sl-problems{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:24px clamp(24px,3vw,48px)}
.sl-problem{display:flex;gap:14px}
.sl-problem > svg{flex:none;margin-top:2px;color:var(--accent2-ink)}
.sl-problem h3{margin:0 0 6px;font-size:17px}
.sl-problem p{margin:0;font-size:14.5px;line-height:1.65;color:var(--muted)}
.sl-lead{margin:30px 0 0;font-size:16px;line-height:1.65;max-width:56ch}
.sl-lead strong{font-weight:500;color:var(--brand-ink)}

/* ---------- Leistungen ---------- */
.sl-feature{display:grid;grid-template-columns:1fr;gap:8px 20px;align-items:center;padding:22px 0}
.sl-num{display:none;margin:0;font-size:15px;color:var(--brand-ink);font-feature-settings:'tnum' 1;align-self:baseline}
.sl-feature h3{margin:0;font-size:23px;letter-spacing:-.01em;align-self:baseline}
.sl-feature p{margin:0;font-size:15.5px;line-height:1.65;color:var(--muted);max-width:56ch}
.sl-feature .lighten{max-width:340px;margin-top:6px}
.sl-feature img{width:100%;height:auto}
[data-theme="light"] .sl-feature .lighten{background:#101612;border-radius:14px;overflow:hidden}
.sl-tech{display:grid;gap:12px;margin-top:20px}
.sl-tagrow{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.sl-taglabel{font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-right:6px}

/* ---------- Anwendungsfälle ---------- */
.sl-intro{margin:0 0 26px;font-size:15.5px;line-height:1.65;color:var(--muted);max-width:62ch}
.sl-cases{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:16px}
.sl-case{padding:24px;gap:12px;border:1px solid var(--divider)}
.sl-case-cat{font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--brand-ink)}
.sl-case h3{margin:0;font-size:19px;letter-spacing:-.01em}
.sl-case p{margin:0;font-size:14.5px;line-height:1.65;color:var(--muted)}
.sl-case-foot{margin-top:auto;padding-top:12px;border-top:1px solid var(--divider)}
.sl-case-foot p{font-size:13.5px;line-height:1.5}
.sl-case-foot strong{color:var(--text);font-weight:500}
.sl-cta-row{margin-top:26px;display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.sl-cta-row .btn{padding:11px 18px;font-size:14.5px}

/* ---------- Ablauf ---------- */
.sl-steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px}
.sl-step{padding:20px;gap:6px;border:1px solid var(--divider)}
.sl-step-num{font-size:13px;color:var(--brand-ink);font-feature-settings:'tnum' 1}
.sl-step h3{margin:0;font-size:17px}
.sl-step p{margin:0;font-size:13.5px;line-height:1.6;color:var(--muted)}
.sl-note{margin:22px 0 0;font-size:14.5px;line-height:1.6;color:var(--muted);max-width:62ch}
.sl-note strong,.sl-founder-list strong{color:var(--text);font-weight:500}

/* ---------- Sicherheit & Kontrolle ---------- */
.sl-control{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:32px clamp(28px,4vw,56px);align-items:center}
.sl-control-list{display:grid;gap:24px 32px}
.sl-control-item{display:flex;gap:12px}
.sl-dot{width:8px;height:8px;border-radius:50%;background:var(--accent2);margin-top:8px;flex:none}
.sl-control-item h3{margin:0 0 4px;font-size:16px}
.sl-control-item p{margin:0;font-size:14px;line-height:1.6;color:var(--muted)}
.sl-control-img{
  -webkit-mask-image:radial-gradient(140% 120% at 50% 50%, black 62%, transparent 98%);
  mask-image:radial-gradient(140% 120% at 50% 50%, black 62%, transparent 98%);
}
.sl-control-img img{width:100%;height:auto}

/* ---------- Arbeitsproben ---------- */
.sl-proofs{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:16px}
.sl-proof{padding:24px;gap:12px;border:1px solid var(--divider)}
.sl-proof-cat{font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--brand-ink)}
.sl-proof h3{margin:0;font-size:19px;letter-spacing:-.01em}
.sl-proof p{margin:0;font-size:14.5px;line-height:1.65;color:var(--muted)}
.sl-proof .sl-arrowlink{margin-top:auto;padding-top:14px;font-size:14.5px}

/* ---------- Ihr Ansprechpartner ---------- */
.sl-founder{display:grid;grid-template-columns:1fr;gap:28px clamp(28px,4vw,56px);align-items:center}
.sl-portrait{width:100%;max-width:260px;aspect-ratio:4/5;object-fit:cover;object-position:50% 20%;border-radius:14px;border:1px solid var(--divider)}
.sl-founder-copy > p{margin:0;font-size:16px;line-height:1.7;max-width:58ch}
.sl-founder-copy strong{font-weight:500}
.sl-founder-list{list-style:none;margin:20px 0 0;padding:0;display:grid;gap:12px}
.sl-founder-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.6;color:var(--muted)}
.sl-founder-list .sl-check{margin-top:5px}
.sl-arrowlink{display:inline-flex;align-items:center;gap:8px;margin-top:22px;font-size:15px;font-weight:500}

/* ---------- Kontakt ---------- */
.sl-contact{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:40px clamp(32px,5vw,80px);align-items:start}
#kontakt h2{margin:14px 0 12px}
.sl-contact-lead{margin:0 0 20px;font-size:16px;line-height:1.65;color:var(--muted);max-width:48ch}
.sl-nextsteps{list-style:none;margin:0 0 24px;padding:0;display:grid;gap:12px}
.sl-nextsteps li{display:flex;gap:12px}
.sl-nextsteps p{margin:0;font-size:14.5px;line-height:1.55;color:var(--muted)}
.sl-nextsteps strong{color:var(--text);font-weight:500}
.sl-nextnum{flex:none;display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;margin-top:1px;border-radius:50%;border:1px solid var(--brand-ink);color:var(--brand-ink);font-size:12.5px;font-feature-settings:'tnum' 1}
.sl-contactlinks{display:grid;gap:10px;font-size:15px}
.sl-contactlinks > div{display:flex;gap:10px;align-items:baseline}
.sl-contactlinks span{color:var(--muted);min-width:64px}
.sl-privacy{margin:24px 0 0;font-size:13px;line-height:1.6;color:var(--muted);max-width:44ch}
.sl-contactcard{
  position:relative;gap:16px;padding:24px;border:1px solid var(--divider);
  box-shadow:0 0 0 1px rgba(0,150,50,.28), 0 10px 44px rgba(0,150,50,.10);
}
.sl-hp{position:absolute;left:-9999px;top:0;width:1px;height:1px;opacity:0;pointer-events:none}
.sl-fieldnote{margin:4px 0 0;font-size:13px;color:var(--muted)}
.sl-err{color:var(--error);font-size:13px;margin-top:4px}
.sl-consent{display:flex;gap:10px;align-items:flex-start}
.sl-consent input{margin-top:4px;width:16px;height:16px;accent-color:var(--brand);flex:none}
.sl-consent label{font-size:13px;line-height:1.55;color:var(--muted)}
.sl-form-actions{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.sl-form-actions .btn{padding:11px 22px;font-size:15px}
.sl-form-hint{font-size:13px;color:var(--muted)}

/* ---------- FAQ ---------- */
.sl-faqgrid{display:grid;gap:10px}
#faq-more{margin-top:10px}
.sl-faq details{background:var(--surface);border:1px solid var(--divider);border-radius:10px;padding:14px 18px}
.sl-faq summary{cursor:pointer;font-weight:500;font-size:15px;list-style:none;position:relative;padding-right:30px}
.sl-faq summary::-webkit-details-marker{display:none}
.sl-faq summary::after{
  content:"";position:absolute;right:4px;top:50%;width:8px;height:8px;
  border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;opacity:.55;
  transform:translateY(-75%) rotate(45deg);transition:transform .25s ease;
}
.sl-faq details[open] summary::after{transform:translateY(-25%) rotate(225deg)}
.sl-faq details p{margin:10px 0 2px;font-size:14.5px;line-height:1.65;color:var(--muted)}
.sl-faq-toggle-row{margin-top:18px}
.sl-faq-toggle-row .btn{padding:10px 18px;font-size:14px}

/* ---------- Abschluss-Band ---------- */
.sl-close{
  margin:16px 0 40px;border-radius:16px;
  padding:clamp(36px,5vw,60px) clamp(24px,4vw,60px);
  background:radial-gradient(700px 360px at 82% -30%, var(--band-glow), transparent 70%), var(--band);
}
.sl-close h2{margin:0;font-size:clamp(26px,3.4vw,40px);letter-spacing:-.012em;color:#eef5ee;max-width:22ch}
.sl-close p{margin:14px 0 0;font-size:16px;line-height:1.65;color:rgba(238,245,238,.75);max-width:54ch}
.sl-close .sl-herocta{margin-top:26px;gap:14px}
.sl-close .btn{padding:12px 24px;font-size:15px;color:#eef5ee;border:1px solid rgba(238,245,238,.75)}
.sl-close .btn:hover{background:rgba(238,245,238,.12);border-color:#eef5ee;color:#ffffff}
.sl-close-hint{font-size:13px;color:rgba(238,245,238,.65)}

/* ---------- Footer ---------- */
footer{padding:40px 0 96px;font-size:14px;line-height:1.9}
.sl-footgrid{display:grid;gap:32px 24px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.sl-footgrid strong{font-weight:600}
.sl-footlink{color:var(--muted)}
.sl-footlink:hover{color:var(--brand-ink)}
.sl-copyright{margin:32px 0 0;color:var(--muted)}

/* ---------- Sticky-CTA (nur Mobil/Tablet, per JS eingeblendet) ---------- */
.sl-sticky{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:900;
  background:var(--bg);
  background:color-mix(in srgb, var(--bg) 92%, transparent);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border-top:1px solid var(--divider);
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
}
.sl-sticky.is-visible{display:block}
.sl-sticky .btn{width:100%;padding:14px;font-size:15px}