/* ============================================================
   Corporate-Stil angelehnt an ematik.de:
   helles Grau als Seitenhintergrund, weiße Content-Karten,
   petrolfarbener Akzent, ruhige serifenlose Schrift, schlichte
   Kachel-Raster für Leistungen/Abschnitte, dunkler Footer.
   ============================================================ */
:root{
  --bg:#F5F5F5;
  --white:#FFFFFF;
  --ink:#1E2A33;
  --ink-soft:#5B6B76;
  --accent:#00677F;
  --accent-dark:#004E60;
  --accent-tint:#E7F1F3;
  --line:#DDE2E5;
  --success:#2E7D52;
  --success-bg:#E7F3EC;
  --error:#B23A2E;
  --error-bg:#FBEAE8;
  --radius:4px;
  --maxw:1180px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;}
}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:'Source Sans 3','Inter',Arial,sans-serif;
  line-height:1.55;
}
a{color:var(--accent);}
img{max-width:100%;display:block;}

/* ===== HEADER / NAV ===== */
header.site-header{
  background:var(--white);border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:50;
}
.header-inner{
  max-width:var(--maxw);margin:0 auto;padding:14px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.logo{
  display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);
  font-weight:700;font-size:18px;letter-spacing:.01em;
}
.logo .mark{
  width:34px;height:34px;border-radius:50%;background:var(--accent);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:14px;font-weight:700;
  font-family:'Source Sans 3',Arial,sans-serif;
}
nav.main-nav ul{
  display:flex;gap:6px;list-style:none;margin:0;padding:0;flex-wrap:wrap;
}
nav.main-nav a{
  display:inline-block;padding:9px 14px;text-decoration:none;color:var(--ink-soft);
  font-size:13.5px;font-weight:600;letter-spacing:.02em;text-transform:uppercase;
  border-bottom:2px solid transparent;transition:color .15s ease, border-color .15s ease;
}
nav.main-nav a:hover{color:var(--accent);}
nav.main-nav li.current a{color:var(--accent);border-color:var(--accent);}
nav.main-nav li.done a{color:var(--success);}

/* ===== HERO ===== */
.page-hero{
  background:linear-gradient(180deg, var(--accent-dark) 0%, var(--accent) 100%);
  color:#fff;padding:54px 24px 68px;
}
.page-hero-inner{max-width:var(--maxw);margin:0 auto;}
.eyebrow{
  font-size:12.5px;text-transform:uppercase;letter-spacing:.12em;color:#BFE3EA;
  font-weight:700;margin:0 0 10px;
}
.page-hero h1{
  font-size:clamp(26px,3.6vw,38px);font-weight:700;margin:0 0 12px;letter-spacing:-0.01em;
}
.page-hero p{max-width:62ch;color:#E4F2F4;margin:0;font-size:15.5px;}

/* ===== PROGRESS ===== */
.progress-track{
  max-width:var(--maxw);margin:-30px auto 0;padding:0 24px;
}
.progress-bar{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px 22px;display:flex;gap:0;align-items:center;box-shadow:0 6px 18px rgba(30,42,51,.08);
  overflow-x:auto;
}
.progress-step{
  display:flex;align-items:center;gap:8px;white-space:nowrap;padding:0 16px;position:relative;
  font-size:12.5px;font-weight:600;color:var(--ink-soft);
}
.progress-step:not(:last-child)::after{
  content:'';position:absolute;right:-2px;top:50%;width:14px;height:1px;background:var(--line);
}
.progress-step .dot{
  width:20px;height:20px;border-radius:50%;background:var(--bg);border:2px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:10px;color:var(--ink-soft);flex-shrink:0;
}
.progress-step.done .dot{background:var(--success);border-color:var(--success);color:#fff;}
.progress-step.current .dot{background:var(--accent);border-color:var(--accent);color:#fff;}
.progress-step.current{color:var(--accent);}
.progress-step.done{color:var(--success);}

/* ===== CONTENT ===== */
main.content{max-width:var(--maxw);margin:0 auto;padding:40px 24px 80px;}
.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:36px 40px;margin-bottom:26px;
}
.card h2.block-title{
  font-size:20px;font-weight:700;margin:0 0 6px;color:var(--ink);
  display:flex;align-items:center;gap:10px;
}
.card h2.block-title .num{
  background:var(--accent-tint);color:var(--accent-dark);font-size:12.5px;font-weight:700;
  width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.card .block-sub{color:var(--ink-soft);font-size:14px;margin:0 0 22px;}

.grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
@media (max-width:640px){.grid2{grid-template-columns:1fr;}}

.field{margin-bottom:18px;}
.field label{
  display:block;font-size:13px;font-weight:700;color:var(--ink);margin-bottom:6px;
}
.field .hint{font-weight:400;color:var(--ink-soft);font-size:12.5px;display:block;margin-top:3px;}
input[type=text], input[type=number], input[type=email], textarea, select{
  width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:var(--radius);
  font-family:inherit;font-size:14.5px;color:var(--ink);background:#FCFCFC;
  transition:border-color .15s ease, box-shadow .15s ease;
}
textarea{resize:vertical;min-height:88px;}
input:focus, textarea:focus, select:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(0,103,127,.14);background:#fff;
}
input::placeholder, textarea::placeholder{color:#9AA6AC;}

fieldset{border:none;padding:0;margin:0 0 18px;}
fieldset legend{font-size:13px;font-weight:700;color:var(--ink);margin-bottom:9px;padding:0;}
.toggle-row{display:flex;gap:10px;flex-wrap:wrap;}
.toggle{position:relative;}
.toggle input{position:absolute;opacity:0;width:100%;height:100%;cursor:pointer;margin:0;}
.toggle span{
  display:inline-block;padding:9px 18px;border:1px solid var(--line);border-radius:20px;
  font-size:13.5px;font-weight:600;color:var(--ink-soft);background:#FCFCFC;transition:all .15s ease;
}
.toggle input:checked + span{background:var(--accent);border-color:var(--accent);color:#fff;}
.toggle input:focus-visible + span{box-shadow:0 0 0 3px rgba(0,103,127,.28);}

.subgroup{
  border-left:3px solid var(--accent);padding:16px 20px;margin-top:14px;background:var(--accent-tint);
  border-radius:0 var(--radius) var(--radius) 0;display:none;
}
.subgroup.open{display:block;}

.check-row{display:flex;flex-wrap:wrap;gap:16px;}
.check-item{display:flex;align-items:center;gap:8px;}
.check-item input{width:16px;height:16px;accent-color:var(--accent);}
.check-item label{margin:0;font-weight:500;font-size:14px;color:var(--ink);}

.file-drop{
  border:1.5px dashed var(--line);border-radius:var(--radius);padding:24px;text-align:center;
  background:#FCFCFC;cursor:pointer;transition:border-color .15s ease, background .15s ease;
}
.file-drop:hover{border-color:var(--accent);}
.file-drop.drag{border-color:var(--accent);background:var(--accent-tint);}
.file-drop input{display:none;}
.file-drop p{margin:0;font-size:13.5px;color:var(--ink-soft);}
.file-drop p b{color:var(--accent-dark);}
#fileList{margin-top:10px;font-size:12.5px;color:var(--success);text-align:left;}

/* ===== NAV BUTTONS ===== */
.step-actions{
  display:flex;justify-content:space-between;align-items:center;gap:14px;margin-top:10px;flex-wrap:wrap;
}
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:var(--radius);
  font-size:14.5px;font-weight:700;text-decoration:none;cursor:pointer;border:1.5px solid transparent;
  transition:background .15s ease, color .15s ease, border-color .15s ease, transform .1s ease;
}
.btn:active{transform:scale(.98);}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--accent-dark);}
.btn-secondary{background:transparent;color:var(--accent);border-color:var(--accent);}
.btn-secondary:hover{background:var(--accent-tint);}
.btn-ghost{background:transparent;color:var(--ink-soft);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--ink-soft);color:var(--ink);}
.btn:disabled{background:#AAB4B9;border-color:#AAB4B9;cursor:not-allowed;}

/* ===== START / LANDING TILES ===== */
.tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:6px 0 0;}
@media (max-width:820px){.tiles{grid-template-columns:1fr 1fr;}}
@media (max-width:560px){.tiles{grid-template-columns:1fr;}}
.tile{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;text-align:left;
}
.tile .tile-num{color:var(--accent);font-weight:700;font-size:13px;margin-bottom:8px;}
.tile h3{margin:0 0 6px;font-size:15.5px;}
.tile p{margin:0;color:var(--ink-soft);font-size:13.5px;}

/* ===== PREVIEW / VORSCHAU ===== */
.preview-panel{
  background:#FCFCFC;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 30px;font-size:14px;display:none;
}
.preview-panel.open{display:block;}
.preview-panel h3{
  font-size:14px;text-transform:uppercase;letter-spacing:.05em;color:var(--accent-dark);
  border-bottom:1px solid var(--line);padding-bottom:8px;margin:22px 0 10px;
}
.preview-panel h3:first-child{margin-top:0;}
.preview-row{display:flex;gap:10px;padding:4px 0;border-bottom:1px dashed var(--line);}
.preview-row:last-child{border-bottom:none;}
.preview-row .k{flex:0 0 260px;color:var(--ink-soft);font-weight:600;}
.preview-row .v{flex:1;color:var(--ink);}
.preview-empty{color:#9AA6AC;font-style:italic;}

.status{
  margin-top:16px;padding:13px 16px;border-radius:var(--radius);font-size:14px;display:none;
}
.status.show{display:block;}
.status.ok{background:var(--success-bg);color:var(--success);}
.status.err{background:var(--error-bg);color:var(--error);}

.required-mark{color:var(--accent-dark);}

/* ===== FOOTER ===== */
footer.site-footer{
  background:var(--ink);color:#C7D1D6;padding:34px 24px;margin-top:40px;
}
.footer-inner{
  max-width:var(--maxw);margin:0 auto;display:flex;justify-content:space-between;
  flex-wrap:wrap;gap:16px;font-size:13px;
}
.footer-inner a{color:#C7D1D6;text-decoration:none;}
.footer-inner a:hover{color:#fff;}
.footer-legal{display:flex;gap:16px;flex-wrap:wrap;}