/* ==========================================================================
   Kraus & Partner — E-Mail-Signatur-Generator
   Brand-Tokens: kp-brand colors_and_type.css (Poppins, #005C9D, #8ABAD5, #F1BC78,
   "Die Rundung" 12/20px, weiche blau-getoente Schatten, viel Weissraum).
   ========================================================================== */
:root{
  --blau:#005C9D; --blau-700:#024B80; --blau-900:#013B66;
  --stahl:#8ABAD5; --stahl-soft:#D0E3EE; --sand:#F1BC7A;
  --section:#F6F9FE; --surface:#FFFFFF; --border:#E2E8EF;
  --slate:#213448; --grau:#5C6B7A; --grau-soft:#8A97A4;
  --ink:#0D0D0D; --danger:#C0392B;
  --r-sm:8px; --r:12px; --r-lg:20px; --r-xl:28px;
  --sh-sm:0 1px 3px rgba(0,92,157,.06), 0 1px 2px rgba(33,52,72,.05);
  --sh:0 8px 28px rgba(0,92,157,.10), 0 2px 8px rgba(33,52,72,.05);
  --sh-lg:0 22px 50px rgba(0,92,157,.14), 0 6px 16px rgba(33,52,72,.06);
  --font:"Poppins","Segoe UI",system-ui,Arial,sans-serif;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font);font-weight:300;color:var(--slate);
  background:var(--section);line-height:1.6;-webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;min-height:100vh;
}
.wrap{max-width:1140px;margin:0 auto;padding:0 28px}

/* ---- Dekor-Atmosphaere: Sand-Halbkreis + Stahlblau-Schimmer (markentypisch) ---- */
.bg-deco{position:fixed;inset:0;z-index:-1;overflow:hidden;pointer-events:none}
.bg-deco::before{
  content:'';position:absolute;top:-200px;right:-180px;width:600px;height:600px;border-radius:50%;
  background:radial-gradient(circle at 32% 32%, rgba(241,188,122,.50), rgba(241,188,122,.16) 58%, transparent 72%);
}
.bg-deco::after{
  content:'';position:absolute;bottom:-260px;left:-200px;width:640px;height:640px;border-radius:50%;
  background:radial-gradient(circle at 60% 40%, rgba(138,186,213,.30), transparent 66%);
}

/* ---- Page-Load-Reveal (ruhig, reduced-motion-sicher) ---- */
@media (prefers-reduced-motion: no-preference){
  .reveal{opacity:0;transform:translateY(16px);animation:reveal .65s var(--ease) forwards;animation-delay:var(--d,0s)}
  @keyframes reveal{to{opacity:1;transform:none}}
}

/* ---- Header ---- */
.site-header{
  position:sticky;top:0;z-index:20;background:rgba(255,255,255,.82);
  backdrop-filter:saturate(140%) blur(8px);border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;gap:14px;height:74px}
.brand-logo{height:46px;width:auto;display:block}
.header-tag{
  margin-left:auto;font-weight:500;font-size:13px;letter-spacing:.04em;color:var(--blau);
  background:var(--section);border:1px solid var(--stahl-soft);border-radius:999px;padding:6px 14px;
}

/* ---- Hero ---- */
.hero{padding:54px 28px 10px}
.eyebrow{
  margin:0 0 14px;font-weight:600;font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--stahl);
}
.hero-title{
  margin:0;font-weight:600;font-size:clamp(30px,5vw,50px);line-height:1.08;letter-spacing:-.02em;color:var(--blau);
  max-width:18ch;text-wrap:balance;
}
.hero-title .accent{position:relative;white-space:nowrap}
.hero-title .accent::after{
  content:'';position:absolute;left:-2px;right:-2px;bottom:.08em;height:.30em;z-index:-1;border-radius:6px;
  background:linear-gradient(180deg, rgba(241,188,122,.0), rgba(241,188,122,.85));
}
.hero-sub{margin:18px 0 0;font-weight:300;font-size:clamp(15px,2vw,18px);color:var(--grau);max-width:54ch}
.steps{
  list-style:none;display:flex;align-items:center;gap:14px;margin:26px 0 0;padding:0;
  font-weight:500;font-size:14px;color:var(--slate);flex-wrap:wrap;
}
.steps li{display:flex;align-items:center;gap:9px}
.step-no{
  display:grid;place-items:center;width:26px;height:26px;border-radius:50%;
  background:var(--blau);color:#fff;font-weight:600;font-size:13px;box-shadow:var(--sh-sm);
}
.step-sep{width:26px;height:1px;background:var(--stahl);opacity:.7}

/* ---- Layout ---- */
.layout{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:26px;
  padding:30px 28px 10px;align-items:start;
}
@media (max-width:900px){.layout{grid-template-columns:1fr}}

/* ---- Cards ---- */
.card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-xl);
  box-shadow:var(--sh);padding:30px 30px 28px;
}
.card-title{
  margin:0 0 20px;font-weight:600;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--grau-soft);
  display:flex;align-items:center;gap:10px;
}
.card-title::before{content:'';width:18px;height:2px;border-radius:2px;background:var(--stahl)}

/* ---- Felder ---- */
.field{margin:0 0 20px}
.field:last-child{margin-bottom:0}
.field-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
label{display:block;font-weight:500;font-size:14px;color:var(--slate);margin:0 0 7px}
input[type=text]{
  width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:var(--r);
  font:inherit;font-weight:400;color:var(--slate);background:#fff;transition:border-color .15s,box-shadow .15s;
}
input::placeholder{color:var(--grau-soft);font-weight:300}
input[type=text]:focus-visible{outline:none;border-color:var(--stahl);box-shadow:0 0 0 3px rgba(138,186,213,.35)}
input:disabled{background:var(--section);color:var(--grau-soft);cursor:not-allowed}
.hint{font-size:12.5px;color:var(--grau);margin:9px 0 0;line-height:1.5}
.error{font-size:12.5px;color:var(--danger);margin:8px 0 0;font-weight:400}

/* Quick-Fill-Chip */
.chip{
  display:inline-block;margin-left:4px;padding:4px 11px;border:1px solid var(--stahl);
  background:#fff;color:var(--blau);border-radius:var(--r-sm);font:inherit;font-size:12px;font-weight:500;
  cursor:pointer;transition:background .15s,border-color .15s;
}
.chip:hover{background:var(--section);border-color:var(--blau)}
.chip:focus-visible{outline:2px solid var(--stahl);outline-offset:2px}

/* Toggle-Switch */
.switch{display:inline-flex;align-items:center;gap:9px;cursor:pointer;user-select:none;margin:0}
.switch input{position:absolute;width:1px;height:1px;margin:-1px;padding:0;border:0;opacity:0;clip:rect(0 0 0 0);clip-path:inset(50%);overflow:hidden}
.switch-track{
  position:relative;width:40px;height:23px;border-radius:999px;background:#CBD5DF;transition:background .2s var(--ease);
}
.switch-thumb{
  position:absolute;top:3px;left:3px;width:17px;height:17px;border-radius:50%;background:#fff;
  box-shadow:0 1px 3px rgba(0,0,0,.25);transition:transform .2s var(--ease);
}
.switch input:checked + .switch-track{background:var(--blau)}
.switch input:checked + .switch-track .switch-thumb{transform:translateX(17px)}
.switch input:focus-visible + .switch-track{box-shadow:0 0 0 3px rgba(138,186,213,.45)}
.switch-text{font-size:13px;font-weight:500;color:var(--grau)}

/* E-Mail mit fester Domain */
.input-suffix{display:flex;align-items:stretch;border:1px solid var(--border);border-radius:var(--r);overflow:hidden;background:#fff;transition:border-color .15s,box-shadow .15s}
.input-suffix:focus-within{border-color:var(--stahl);box-shadow:0 0 0 3px rgba(138,186,213,.35)}
.input-suffix input{border:0;border-radius:0;box-shadow:none;flex:1 1 auto;min-width:0}
.input-suffix input:focus-visible{box-shadow:none}
.suffix{
  display:flex;align-items:center;padding:0 13px;background:var(--section);color:var(--grau);
  font-size:13.5px;font-weight:400;border-left:1px solid var(--border);white-space:nowrap;
}

/* ---- Mail-Vorschau-Rahmen ---- */
.mail-sheet{border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;background:#fff;box-shadow:var(--sh-sm)}
.mail-sheet-head{
  padding:10px 16px;font-size:12px;font-weight:500;color:var(--grau-soft);letter-spacing:.02em;
  background:linear-gradient(180deg,#FBFDFF,#F4F8FC);border-bottom:1px solid var(--border);
}
.preview-frame{display:block;width:100%;min-height:300px;border:0;background:#fff}

/* ---- Buttons ---- */
.copy-row{display:flex;flex-wrap:wrap;gap:11px;margin-top:22px}
.btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 18px;border:1px solid transparent;border-radius:var(--r);font:inherit;font-weight:500;font-size:14.5px;
  cursor:pointer;transition:background .18s var(--ease),color .18s,border-color .18s,transform .06s,box-shadow .18s;
}
.btn:active{transform:translateY(1px)}
.btn:focus-visible{outline:2px solid var(--stahl);outline-offset:2px}
.btn-primary{background:var(--blau);color:#fff;box-shadow:var(--sh-sm)}
.btn-primary:hover{background:var(--blau-700);box-shadow:var(--sh)}
.btn-ghost{background:#fff;color:var(--blau);border-color:var(--stahl)}
.btn-ghost:hover{background:var(--section)}
.btn.is-copied{background:var(--blau-900);color:#fff;border-color:transparent}
.btn.is-copied::before{
  content:'';width:16px;height:16px;flex:0 0 auto;background:currentColor;
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E") center/contain no-repeat;
          mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E") center/contain no-repeat;
}
@media (prefers-reduced-motion: no-preference){
  .btn.is-copied::before{animation:check-in .22s var(--ease)}
  @keyframes check-in{from{opacity:0;transform:scale(.6)}to{opacity:1;transform:scale(1)}}
}
.copy-status{min-height:21px;margin:13px 0 0;font-weight:500;font-size:13.5px;color:var(--blau);transition:color .15s}
.copy-status.is-error{color:var(--danger)}

/* ---- How-tos ---- */
.howtos{margin-top:18px;display:grid;gap:9px}
.how{border:1px solid var(--border);border-radius:var(--r);background:#fff;overflow:hidden}
.how summary{
  cursor:pointer;padding:12px 16px;font-weight:500;font-size:14px;color:var(--blau);list-style:none;
  display:flex;align-items:center;justify-content:space-between;
}
.how summary::-webkit-details-marker{display:none}
.how summary::after{content:'+';font-weight:400;font-size:18px;color:var(--grau-soft);transition:transform .2s}
.how[open] summary::after{transform:rotate(45deg)}
.how summary:hover{background:var(--section)}
.how-body{padding:2px 16px 14px;font-weight:300;font-size:13.5px;color:var(--grau)}
.how-body p{margin:8px 0}
.how-body strong{color:var(--slate);font-weight:500}

/* ---- Footer ---- */
.site-footer{
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;
  margin-top:30px;padding:26px 28px 38px;color:var(--grau-soft);font-size:12.5px;border-top:1px solid var(--border);
}
.footer-brand{font-weight:500;color:var(--grau)}
.site-footer{max-width:1140px;margin-left:auto;margin-right:auto}

@media (max-width:560px){
  .wrap{padding-left:18px;padding-right:18px}
  .card{padding:24px 20px}
  .hero{padding-top:38px}
}