/* ============================================================
   KONO Digital – Designsystem v2 „Premium Dark/Light"
   Anthrazit + Premium-Blau. System-Fonts (DSGVO, Performance).
   Alle Farben laufen über die Theme-Tokens in :root.
   ============================================================ */
:root{
  /* --- Kern-Tokens --- */
  --background:#0B0D12;             /* Haupt-Hintergrund dunkel (Near Black) */
  --background-secondary:#121620;   /* dunkle Sekundärfläche */
  --surface:#141926;                /* Cards auf dunkel */
  --surface-hover:#1A2030;
  --paper:#F7F7F5;                  /* heller Sektions-Hintergrund (warm gebrochen) */
  --paper-deep:#EFEFEB;             /* tiefere helle Fläche */
  --text-primary:#F4F5F7;           /* Haupttext auf dunkel */
  --text-secondary:#A4A8B3;         /* Secondary Text auf dunkel */
  --text-muted:#737985;             /* Muted Text auf dunkel */
  --border:rgba(255,255,255,.08);   /* Border auf dunkel */
  --border-strong:rgba(255,255,255,.16);
  --accent:#4F7CFF;                 /* Premium-Blau */
  --accent-hover:#6B8FFF;
  --accent-secondary:#786CFF;       /* dezentes Violett – sparsam */
  --accent-soft:rgba(79,124,255,.10);
  --gradient-accent:linear-gradient(120deg,#4F7CFF,#786CFF);

  /* --- Aliase (von Layout & Inline-Styles genutzt) --- */
  --ink:var(--background);          /* dunkle Fläche + Text auf hell */
  --ink-soft:var(--background-secondary);
  --accent-ink:#FFFFFF;             /* Text auf Akzentfarbe */
  --mut:#5D626D;                    /* Secondary Text auf hell */
  --mut-dark:var(--text-secondary);
  --line:#E5E5E1;                   /* Border auf hell */
  --line-dark:var(--border);

  --radius:16px;
  --radius-s:10px;
  --shadow:0 16px 48px rgba(11,13,18,.08);
  --shadow-dark:0 24px 64px rgba(0,0,0,.5);
  --glow-accent:0 8px 28px rgba(79,124,255,.30);
  --font:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --wrap:min(1180px,92vw);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{font-family:var(--font);background:var(--paper);color:var(--ink);line-height:1.65;-webkit-font-smoothing:antialiased;font-size:16.5px}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{width:var(--wrap);margin-inline:auto}
::selection{background:var(--accent);color:#fff}

/* ---------- Typografie ---------- */
h1,h2,h3{font-weight:700;letter-spacing:-.025em;line-height:1.08}
.display{font-size:clamp(2.4rem,5.6vw,4.2rem);font-weight:800}
h2{font-size:clamp(1.7rem,3.4vw,2.5rem)}
h3{font-size:1.15rem;letter-spacing:-.01em}
.kicker{display:inline-flex;align-items:center;gap:.55rem;font-size:.75rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--mut);margin-bottom:1rem}
.kicker::before{content:"";width:22px;height:2px;background:var(--accent)}
.dark .kicker,.dark-soft .kicker{color:var(--text-muted)}
.lead{font-size:1.12rem;color:var(--mut);max-width:44rem;margin-top:1rem}
.dark .lead,.dark-soft .lead{color:var(--text-secondary)}
.accent-word{background:var(--gradient-accent);-webkit-background-clip:text;background-clip:text;color:transparent}
.on-light .accent-word{background:none;color:var(--accent);-webkit-background-clip:initial;background-clip:initial;padding:0}

/* ---------- Oberflächen ---------- */
.dark{background:var(--background);color:var(--text-primary)}
.dark-soft{background:var(--background-secondary);color:var(--text-primary)}
section{padding:5.5rem 0}
@media(max-width:700px){section{padding:3.6rem 0}}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.55rem;padding:1rem 1.7rem;border-radius:999px;font-weight:600;font-size:1rem;border:0;cursor:pointer;font-family:inherit;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease;min-height:48px}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:var(--glow-accent)}
.btn-ink{background:var(--ink);color:var(--text-primary)}
.btn-ink:hover{transform:translateY(-1px);box-shadow:0 10px 26px rgba(11,13,18,.28)}
.btn-ghost{border:1px solid var(--border-strong);color:inherit;background:transparent}
.btn-ghost:hover{border-color:rgba(255,255,255,.32);background:rgba(255,255,255,.04)}
.on-light .btn-ghost{border-color:#C9CBD0;color:var(--ink)}
.on-light .btn-ghost:hover{border-color:var(--ink);background:rgba(11,13,18,.03)}
.btn-arrow::after{content:"→";transition:transform .18s}
.btn-arrow:hover::after{transform:translateX(4px)}
.case .btn-ghost,.dark .btn-ghost,.dark-soft .btn-ghost{border-color:var(--border-strong);color:var(--text-primary)}
.case .btn-ghost:hover,.dark .btn-ghost:hover,.dark-soft .btn-ghost:hover{border-color:rgba(255,255,255,.32);background:rgba(255,255,255,.04)}

/* ---------- Navigation ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(11,13,18,.78);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border);color:var(--text-primary)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:.7rem;font-weight:800;font-size:1.12rem;letter-spacing:-.02em}
.brand-mark{width:38px;height:38px;border-radius:11px;background:var(--gradient-accent);color:#fff;display:grid;place-items:center;font-weight:800;font-size:1.15rem}
.brand small{display:block;font-size:.66rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--text-muted)}
.nav-links{display:flex;gap:2rem;font-size:.95rem;font-weight:500}
.nav-links a{color:var(--text-secondary);padding:.4rem 0;position:relative}
.nav-links a:hover,.nav-links a[aria-current="page"]{color:var(--text-primary)}
.nav-links a[aria-current="page"]::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--accent)}
.nav-cta{white-space:nowrap}
.nav-toggle{display:none;background:none;border:0;color:var(--text-primary);font-size:1.7rem;cursor:pointer;padding:.4rem;line-height:1}
@media(max-width:920px){
  .nav-links{position:fixed;inset:74px 0 auto 0;background:var(--background);flex-direction:column;gap:0;padding:.6rem 4vw 1.4rem;border-bottom:1px solid var(--border);transform:translateY(-130%);transition:transform .3s ease;box-shadow:var(--shadow-dark)}
  .nav-links.open{transform:none}
  .nav-links a{padding:.85rem 0;font-size:1.05rem;border-bottom:1px solid var(--border)}
  .nav-toggle{display:block}
  .nav-cta{display:none}
}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:6.5rem 0 6rem}
.hero-grid-bg{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:56px 56px;opacity:.5;mask-image:radial-gradient(ellipse 90% 70% at 50% 30%,#000 30%,transparent 75%);-webkit-mask-image:radial-gradient(ellipse 90% 70% at 50% 30%,#000 30%,transparent 75%)}
.hero-glow{position:absolute;top:-20%;right:-10%;width:60vw;height:60vw;max-width:800px;max-height:800px;background:radial-gradient(circle,rgba(79,124,255,.10),transparent 60%);pointer-events:none}
.hero-inner{position:relative;max-width:56rem}
.hero-badge{display:inline-flex;align-items:center;gap:.5rem;border:1px solid var(--border);border-radius:999px;padding:.45rem 1rem;font-size:.82rem;font-weight:500;color:var(--text-secondary);margin-bottom:1.6rem;background:rgba(255,255,255,.02)}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px rgba(79,124,255,.7);animation:pulse 2.4s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.hero-ctas{display:flex;gap:1rem;margin-top:2.4rem;flex-wrap:wrap}
.hero-meta{display:flex;gap:2.2rem;margin-top:3.2rem;flex-wrap:wrap;font-size:.9rem;color:var(--text-muted)}
.hero-meta strong{display:block;color:var(--text-primary);font-size:1rem}

/* ---------- Karten & Grids ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;margin-top:2.8rem}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:1.4rem;margin-top:2.8rem}
@media(max-width:900px){.grid-3{grid-template-columns:1fr}.grid-2{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.9rem 1.8rem;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.dark .card,.dark-soft .card{background:var(--surface);border-color:var(--border)}
.dark .card:hover,.dark-soft .card:hover{border-color:var(--border-strong);box-shadow:0 18px 44px rgba(0,0,0,.35)}
.card-icon{width:46px;height:46px;border-radius:12px;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center;font-size:1.25rem;font-weight:700;margin-bottom:1.1rem}
.on-light .card-icon,.card .card-icon{border:1px solid rgba(79,124,255,.18)}
.card h3{margin-bottom:.5rem}
.card p{font-size:.95rem;color:var(--mut)}
.dark .card p,.dark-soft .card p{color:var(--text-secondary)}

/* ---------- Problem/Lösung ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:1.4rem;margin-top:2.8rem}
@media(max-width:900px){.compare{grid-template-columns:1fr}}
.compare-col{border-radius:var(--radius);padding:2rem 1.9rem}
.compare-bad{background:var(--paper-deep);border:1px solid var(--line)}
.compare-good{background:var(--background);color:var(--text-primary);border:1px solid var(--background)}
.compare ul{list-style:none;margin-top:1.2rem;display:grid;gap:.8rem}
.compare li{display:flex;gap:.7rem;align-items:flex-start;font-size:.97rem}
.compare-bad li::before{content:"✕";color:#B4513F;font-weight:700;flex-shrink:0}
.compare-good li::before{content:"✓";color:var(--accent);font-weight:700;flex-shrink:0}
.compare-bad p,.compare-bad li{color:#5D626D}
.compare-good li{color:#C9CDD6}

/* ---------- Prozess ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:1rem;margin-top:2.8rem;counter-reset:s}
@media(max-width:1000px){.steps{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.steps{grid-template-columns:1fr}}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.6rem 1.4rem}
.dark .step,.dark-soft .step{background:var(--surface);border-color:var(--border)}
.step-num{font-size:.8rem;font-weight:700;letter-spacing:.1em;color:var(--accent);background:var(--accent-soft);border:1px solid rgba(79,124,255,.18);display:inline-block;border-radius:999px;padding:.2rem .75rem;margin-bottom:.9rem}
.step h3{font-size:1.02rem}
.step p{font-size:.88rem;color:var(--mut);margin-top:.4rem}
.dark .step p,.dark-soft .step p{color:var(--text-secondary)}

/* ---------- Portfolio / Case ---------- */
.case{border-radius:calc(var(--radius) + 6px);overflow:hidden;background:linear-gradient(140deg,#111624,var(--background));color:var(--text-primary);border:1px solid var(--border);margin-top:2.8rem}
.case-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:2.5rem;padding:3rem;align-items:center}
@media(max-width:960px){.case-inner{grid-template-columns:1fr;padding:2rem}}
.case-tags{display:flex;gap:.5rem;flex-wrap:wrap;margin-bottom:1.1rem}
.tag{font-size:.72rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;border:1px solid var(--border-strong);border-radius:999px;padding:.3rem .8rem;color:var(--text-secondary)}
.case h3{font-size:clamp(1.5rem,3vw,2.1rem);letter-spacing:-.02em}
.case p{color:var(--text-secondary);margin-top:.9rem;font-size:.98rem}
.case-stats{display:grid;grid-template-columns:repeat(4,auto);gap:1.6rem;margin-top:1.8rem}
@media(max-width:560px){.case-stats{grid-template-columns:1fr 1fr}}
.case-stats b{display:block;font-size:1.35rem;color:var(--text-primary);letter-spacing:-.02em}
.case-stats span{font-size:.75rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em}
.case-visual{position:relative}
.device{border-radius:14px;overflow:hidden;box-shadow:var(--shadow-dark);border:1px solid var(--border-strong);background:#0E1119}
.device-bar{display:flex;gap:.4rem;padding:.6rem .8rem;background:rgba(0,0,0,.4)}
.device-bar i{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.18)}
.device img{width:100%}
.device-placeholder{aspect-ratio:16/10;display:grid;place-items:center;text-align:center;color:var(--text-muted);font-size:.85rem;padding:1.5rem;background:
  radial-gradient(ellipse at 30% 20%,rgba(79,124,255,.10),transparent 50%),
  linear-gradient(150deg,#151B2A,#0B0D12)}
.device-phone{position:absolute;right:-6%;bottom:-12%;width:32%;min-width:110px;border-radius:18px;border:1px solid var(--border-strong)}
.device-phone .device-placeholder{aspect-ratio:9/17;font-size:.7rem;padding:.8rem}
@media(max-width:960px){.device-phone{right:0;bottom:-8%}}

/* ---------- Preise ---------- */
/* Preissektion deaktivieren: <body class="hide-pricing"> setzen */
.hide-pricing #preise{display:none}
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;margin-top:2.8rem;align-items:stretch}
@media(max-width:960px){.price-grid{grid-template-columns:1fr}}
.price{background:#fff;color:#181B22;border:1px solid var(--line);border-radius:var(--radius);padding:2.1rem 1.9rem;display:flex;flex-direction:column;position:relative}
.price.featured{background:var(--background);color:var(--text-primary);border-color:var(--background);transform:scale(1.02);box-shadow:0 24px 56px rgba(11,13,18,.18)}
.price-badge{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--accent);color:#fff;font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;border-radius:999px;padding:.3rem .9rem;white-space:nowrap}
.price h3{font-size:1.05rem;text-transform:uppercase;letter-spacing:.08em}
.price .amount{font-size:2.1rem;font-weight:800;letter-spacing:-.03em;margin-top:.9rem}
.price .amount small{font-size:.95rem;font-weight:600;color:var(--mut)}
.price.featured .amount small{color:var(--text-secondary)}
.price .care{font-size:.85rem;color:var(--mut);margin-top:.2rem}
.price.featured .care{color:var(--text-secondary)}
.price ul{list-style:none;margin:1.4rem 0 1.8rem;display:grid;gap:.65rem;flex:1}
.price li{display:flex;gap:.6rem;font-size:.92rem;align-items:flex-start}
.price li::before{content:"✓";color:var(--accent);font-weight:700;flex-shrink:0}
.price.featured li::before{color:var(--accent-hover)}
.price-note{font-size:.85rem;color:var(--mut);margin-top:1.6rem;max-width:44rem}

/* ---------- FAQ ---------- */
.faq{max-width:52rem;margin-top:2.6rem}
.faq details{border-bottom:1px solid var(--line);padding:.4rem 0}
.faq summary{cursor:pointer;font-weight:600;font-size:1.02rem;padding:1rem 2.2rem 1rem 0;list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:.2rem;top:50%;transform:translateY(-50%);font-size:1.4rem;font-weight:500;color:var(--mut);transition:transform .2s}
.faq details[open] summary::after{transform:translateY(-50%) rotate(45deg);color:var(--accent)}
.faq details p{color:var(--mut);padding:0 0 1.2rem;font-size:.97rem;max-width:46rem}

/* ---------- Formular ---------- */
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:2.2rem;box-shadow:var(--shadow)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.1rem}
@media(max-width:640px){.form-grid{grid-template-columns:1fr}}
.field{display:flex;flex-direction:column;gap:.35rem}
.field.full{grid-column:1/-1}
.field label{font-size:.82rem;font-weight:600;color:var(--ink)}
.field label small{font-weight:500;color:var(--mut)}
.field input,.field select,.field textarea{padding:.85rem 1rem;border:1.5px solid var(--line);border-radius:var(--radius-s);font-family:inherit;font-size:.98rem;background:var(--paper);color:var(--ink);min-height:48px}
.field textarea{min-height:130px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--accent);border-color:transparent}
.field input[aria-invalid="true"],.field textarea[aria-invalid="true"]{border-color:#B4513F}
.field .error{color:#B4513F;font-size:.8rem;display:none}
.field.invalid .error{display:block}
.consent{display:flex;gap:.7rem;align-items:flex-start;font-size:.85rem;color:var(--mut);grid-column:1/-1}
.consent input{width:20px;height:20px;margin-top:2px;accent-color:var(--accent);flex-shrink:0}
.hp-field{position:absolute;left:-9999px;opacity:0;height:0;overflow:hidden}
.form-status{margin-top:1.1rem;padding:1rem 1.2rem;border-radius:var(--radius-s);font-size:.95rem;display:none}
.form-status.ok{display:block;background:#EAF0FF;color:#23418F;border:1px solid #C7D6FF}
.form-status.err{display:block;background:#F8E8E3;color:#7A3020;border:1px solid #E5BFB2}

/* ---------- CTA-Band ---------- */
.cta-band{background:linear-gradient(120deg,var(--background),#131A2B);color:var(--text-primary);border:1px solid var(--border);border-radius:calc(var(--radius) + 6px);padding:3.5rem 3rem;display:flex;justify-content:space-between;align-items:center;gap:2rem;flex-wrap:wrap;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;right:-80px;top:-80px;width:300px;height:300px;background:radial-gradient(circle,rgba(79,124,255,.16),transparent 65%)}
.cta-band h2{max-width:30rem;position:relative}
.cta-band p{color:var(--text-secondary);margin-top:.6rem;position:relative}

/* ---------- Footer ---------- */
.site-footer{background:var(--background);color:var(--text-secondary);padding:3.6rem 0 2rem;font-size:.9rem;border-top:1px solid var(--border)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:2.4rem}
@media(max-width:820px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.footer-grid{grid-template-columns:1fr}}
.site-footer h4{color:var(--text-primary);font-size:.8rem;text-transform:uppercase;letter-spacing:.12em;margin-bottom:1rem}
.site-footer ul{list-style:none;display:grid;gap:.55rem}
.site-footer a:hover{color:var(--text-primary)}
.footer-bottom{border-top:1px solid var(--border);margin-top:2.8rem;padding-top:1.6rem;display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;font-size:.8rem;color:var(--text-muted)}

/* ---------- Reveals ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .65s ease,transform .65s ease}
.reveal.visible{opacity:1;transform:none}
.reveal-d1{transition-delay:.08s}.reveal-d2{transition-delay:.16s}.reveal-d3{transition-delay:.24s}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}

/* ---------- Utility ---------- */
.section-head{max-width:48rem}
.mt-3{margin-top:3rem}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--accent);color:#fff;padding:.8rem 1.2rem;font-weight:700;z-index:200;border-radius:0 0 8px 0}
.skip-link:focus{left:0}