@import url('https://fonts.googleapis.com/css2?family=Sora:wght@300;400;600;700;800&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --bg:       #f8f9fb;
  --surface:  #ffffff;
  --navy:     #0f2044;
  --accent:   #1a56db;
  --accent2:  #0ea5e9;
  --gold:     #d4a017;
  --text:     #111827;
  --muted:    #6b7280;
  --border:   rgba(26,86,219,0.13);
  --border-s: rgba(26,86,219,0.07);
  --shadow:   0 2px 12px rgba(0,0,0,0.06), 0 6px 24px rgba(26,86,219,0.08);
  --shadow-sm:0 1px 4px rgba(0,0,0,0.05), 0 2px 8px rgba(26,86,219,0.05);
}

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{background:var(--bg);color:var(--text);font-family:'Inter',sans-serif;line-height:1.6;}

/* ── NAV ─── */
nav{position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(248,249,251,0.97);backdrop-filter:blur(18px);
  border-bottom:1px solid var(--border-s);
  box-shadow:0 1px 12px rgba(26,86,219,0.06);
  padding:0 0;
}
.nav-inner{max-width:1200px;margin:0 auto;padding:1rem 2.5rem;
  display:flex;align-items:center;justify-content:space-between;gap:2rem;}
.logo{font-family:'Sora',sans-serif;font-size:1.1rem;font-weight:800;
  color:var(--navy);text-decoration:none;display:flex;align-items:center;gap:0.5rem;}
.logo-icon{background:var(--accent);color:#fff;border-radius:0.4rem;
  padding:0.2rem 0.5rem;font-size:0.82rem;font-weight:700;letter-spacing:-0.3px;}
.nav-links{display:flex;gap:2rem;list-style:none;}
.nav-links a{color:var(--muted);text-decoration:none;font-size:0.88rem;font-weight:500;
  transition:color 0.2s;}
.nav-links a:hover,.nav-links a.active{color:var(--accent);}
.nav-cta{background:var(--accent);color:#fff;padding:0.5rem 1.2rem;border-radius:0.4rem;
  text-decoration:none;font-size:0.86rem;font-weight:600;transition:0.2s;}
.nav-cta:hover{background:#1447c0;}
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none;}
.burger span{width:22px;height:2px;background:var(--text);border-radius:2px;}

/* ── HERO ─── */
.hero{background:var(--navy);color:#fff;padding:7rem 2.5rem 5rem;text-align:center;
  position:relative;overflow:hidden;}
.hero::before{content:'';position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(ellipse 80% 60% at 50% 0%,rgba(26,86,219,0.35) 0%,transparent 70%);}
.hero-badge{display:inline-flex;align-items:center;gap:0.5rem;margin-bottom:1.5rem;
  background:rgba(255,255,255,0.1);border:1px solid rgba(255,255,255,0.18);
  border-radius:3rem;padding:0.35rem 1rem;font-size:0.78rem;color:rgba(255,255,255,0.85);
  letter-spacing:0.5px;position:relative;}
.hero-badge-dot{width:6px;height:6px;border-radius:50%;background:#4ade80;flex-shrink:0;}
.hero h1{font-family:'Sora',sans-serif;font-size:clamp(2rem,4.5vw,3.4rem);font-weight:800;
  line-height:1.15;max-width:800px;margin:0 auto 1.2rem;position:relative;}
.hero h1 span{color:#93c5fd;}
.hero p{font-size:1.08rem;color:rgba(255,255,255,0.72);max-width:620px;margin:0 auto 2rem;
  line-height:1.8;position:relative;}
.hero-btns{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap;position:relative;}
.btn-hero{background:#fff;color:var(--navy);padding:0.8rem 2rem;border-radius:0.5rem;
  text-decoration:none;font-weight:700;font-size:0.92rem;transition:0.2s;}
.btn-hero:hover{background:#e0e7ff;transform:translateY(-2px);}
.btn-hero-outline{border:1.5px solid rgba(255,255,255,0.35);color:#fff;
  padding:0.8rem 2rem;border-radius:0.5rem;text-decoration:none;
  font-weight:600;font-size:0.92rem;transition:0.2s;}
.btn-hero-outline:hover{background:rgba(255,255,255,0.1);}
.hero-stats{display:flex;gap:3rem;justify-content:center;flex-wrap:wrap;
  margin-top:3.5rem;padding-top:2.5rem;border-top:1px solid rgba(255,255,255,0.12);
  position:relative;}
.hero-stat{text-align:center;}
.hero-stat-num{font-family:'Sora',sans-serif;font-size:2rem;font-weight:800;color:#fff;}
.hero-stat-num span{color:#93c5fd;}
.hero-stat p{font-size:0.8rem;color:rgba(255,255,255,0.55);margin-top:0.15rem;}

/* ── SECTIONS ─── */
section{padding:5rem 2.5rem;}
.section-inner{max-width:1200px;margin:0 auto;}
.section-label{font-size:0.72rem;font-weight:700;letter-spacing:2.5px;
  text-transform:uppercase;color:var(--accent);margin-bottom:0.6rem;}
.section-title{font-family:'Sora',sans-serif;font-size:clamp(1.6rem,3vw,2.2rem);
  font-weight:700;color:var(--navy);margin-bottom:0.8rem;line-height:1.25;}
.section-sub{color:var(--muted);font-size:0.97rem;max-width:640px;line-height:1.8;}

/* ── CARDS ─── */
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:1.5rem;margin-top:2.5rem;}
.card{background:var(--surface);border:1px solid var(--border-s);border-radius:1rem;
  padding:1.8rem;transition:0.25s;box-shadow:var(--shadow-sm);}
.card:hover{border-color:var(--border);box-shadow:var(--shadow);transform:translateY(-3px);}
.card-icon{width:44px;height:44px;border-radius:0.65rem;
  background:linear-gradient(135deg,rgba(26,86,219,0.1),rgba(14,165,233,0.1));
  display:flex;align-items:center;justify-content:center;font-size:1.4rem;margin-bottom:1rem;}
.card h3{font-family:'Sora',sans-serif;font-size:1rem;font-weight:700;
  color:var(--navy);margin-bottom:0.5rem;}
.card p{font-size:0.86rem;color:var(--muted);line-height:1.7;}
.card-link{display:inline-flex;align-items:center;gap:0.35rem;margin-top:1rem;
  color:var(--accent);text-decoration:none;font-size:0.85rem;font-weight:600;}
.card-link:hover{gap:0.6rem;}

/* ── INFO SECTIONS ─── */
.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:start;margin-top:2rem;}
.info-box-alt{background:linear-gradient(135deg,rgba(26,86,219,0.04),rgba(14,165,233,0.04));
  border:1px solid var(--border);border-radius:1rem;padding:2rem;}
.info-box-alt h3{font-family:'Sora',sans-serif;font-size:1.05rem;font-weight:700;
  color:var(--navy);margin-bottom:1rem;}
.info-list{list-style:none;display:flex;flex-direction:column;gap:0.7rem;}
.info-list li{display:flex;gap:0.75rem;align-items:flex-start;font-size:0.9rem;color:var(--text);line-height:1.65;}
.info-list li::before{content:'✓';color:var(--accent);font-weight:700;flex-shrink:0;margin-top:0.05rem;}
.highlight-box{background:var(--navy);color:#fff;border-radius:1rem;padding:2rem;margin-top:1.5rem;}
.highlight-box h4{font-family:'Sora',sans-serif;font-size:1rem;font-weight:700;color:#93c5fd;margin-bottom:0.6rem;}
.highlight-box p{font-size:0.88rem;color:rgba(255,255,255,0.75);line-height:1.7;}

/* Alt-Section Hintergrund */
.bg-alt{background:linear-gradient(180deg,#eef2fb 0%,#f8f9fb 100%);}

/* ── RECHNER ─── */
.rechner-wrap{background:var(--surface);border:1px solid var(--border-s);
  border-radius:1.25rem;padding:2.5rem;max-width:820px;margin:2rem auto 0;
  box-shadow:var(--shadow);}
.rechner-grid{display:grid;grid-template-columns:1fr 1fr;gap:2rem;}
.form-group{display:flex;flex-direction:column;gap:0.5rem;}
.form-group label{font-size:0.85rem;font-weight:600;color:var(--navy);}
.form-group input,.form-group select{
  border:1.5px solid var(--border-s);border-radius:0.55rem;
  padding:0.7rem 1rem;font-size:0.95rem;font-family:'Inter',sans-serif;
  color:var(--text);background:#fff;transition:border-color 0.2s;outline:none;}
.form-group input:focus,.form-group select:focus{border-color:var(--accent);}
.form-group .hint{font-size:0.75rem;color:var(--muted);}
.rechner-btn{width:100%;margin-top:1.5rem;background:var(--accent);color:#fff;
  border:none;border-radius:0.55rem;padding:0.85rem;font-size:0.95rem;font-weight:700;
  cursor:pointer;transition:0.2s;font-family:'Inter',sans-serif;}
.rechner-btn:hover{background:#1447c0;}
.rechner-result{margin-top:2rem;border-top:1px solid var(--border-s);padding-top:1.5rem;display:none;}
.result-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-top:1rem;}
.result-item{background:linear-gradient(135deg,rgba(26,86,219,0.05),rgba(14,165,233,0.05));
  border:1px solid var(--border);border-radius:0.75rem;padding:1.1rem;text-align:center;}
.result-num{font-family:'Sora',sans-serif;font-size:1.5rem;font-weight:800;color:var(--accent);}
.result-label{font-size:0.75rem;color:var(--muted);margin-top:0.2rem;}
.rechner-chart{margin-top:1.5rem;height:180px;position:relative;}
canvas#renditeChart{width:100%!important;border-radius:0.5rem;}

/* ── UPLOAD / ANALYSE ─── */
.upload-wrap{max-width:780px;margin:2rem auto 0;}
.dropzone{border:2px dashed var(--border);border-radius:1rem;padding:3rem 2rem;
  text-align:center;cursor:pointer;transition:0.2s;background:#fff;}
.dropzone:hover,.dropzone.over{border-color:var(--accent);background:rgba(26,86,219,0.03);}
.dropzone-icon{font-size:2.5rem;margin-bottom:0.8rem;}
.dropzone h3{font-family:'Sora',sans-serif;font-size:1rem;font-weight:700;color:var(--navy);margin-bottom:0.4rem;}
.dropzone p{font-size:0.85rem;color:var(--muted);}
.dropzone input[type=file]{display:none;}
.upload-btn{margin-top:1.5rem;background:var(--accent);color:#fff;border:none;
  border-radius:0.55rem;padding:0.8rem 2rem;font-size:0.92rem;font-weight:700;
  cursor:pointer;transition:0.2s;font-family:'Inter',sans-serif;display:none;}
.upload-btn:hover{background:#1447c0;}
.analyse-result{margin-top:2rem;display:none;}
.analyse-card{background:var(--surface);border:1px solid var(--border-s);
  border-radius:1rem;padding:1.8rem;box-shadow:var(--shadow-sm);}
.analyse-card h4{font-family:'Sora',sans-serif;color:var(--navy);font-size:1rem;font-weight:700;margin-bottom:1rem;}
.analyse-text{font-size:0.9rem;color:var(--text);line-height:1.8;white-space:pre-wrap;}
.spinner{display:none;justify-content:center;align-items:center;gap:0.6rem;
  margin-top:1.5rem;color:var(--muted);font-size:0.88rem;}
.spinner-ring{width:20px;height:20px;border:2.5px solid var(--border);
  border-top-color:var(--accent);border-radius:50%;animation:spin 0.8s linear infinite;}
@keyframes spin{to{transform:rotate(360deg);}}

/* ── DISCLAIMER ─── */
.disclaimer{background:linear-gradient(135deg,rgba(212,160,23,0.08),rgba(212,160,23,0.04));
  border:1px solid rgba(212,160,23,0.25);border-radius:0.75rem;padding:1rem 1.3rem;
  font-size:0.82rem;color:#92660a;line-height:1.6;margin-top:1.5rem;max-width:820px;margin-left:auto;margin-right:auto;}
.disclaimer strong{color:#7a5200;}

/* ── FOOTER ─── */
footer{background:var(--navy);color:rgba(255,255,255,0.6);padding:3rem 2.5rem 2rem;}
.footer-inner{max-width:1200px;margin:0 auto;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:3rem;margin-bottom:2.5rem;}
.footer-brand .logo{color:#fff;margin-bottom:0.8rem;}
.footer-brand p{font-size:0.84rem;line-height:1.7;max-width:280px;}
.footer-col h4{font-family:'Sora',sans-serif;font-size:0.85rem;font-weight:700;
  color:#fff;margin-bottom:1rem;}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:0.5rem;}
.footer-col ul li a{color:rgba(255,255,255,0.55);text-decoration:none;font-size:0.84rem;transition:color 0.2s;}
.footer-col ul li a:hover{color:#93c5fd;}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.08);padding-top:1.5rem;
  display:flex;justify-content:space-between;align-items:center;font-size:0.78rem;flex-wrap:wrap;gap:0.5rem;}
.footer-bottom a{color:rgba(255,255,255,0.45);text-decoration:none;}
.footer-bottom a:hover{color:#93c5fd;}

/* ── MOBILE ─── */
@media(max-width:768px){
  .nav-links,.nav-cta{display:none;}
  .burger{display:flex;}
  .nav-links.open{display:flex;flex-direction:column;position:absolute;
    top:100%;left:0;right:0;background:#fff;padding:1rem 2rem;gap:1rem;
    border-bottom:1px solid var(--border-s);box-shadow:var(--shadow);}
  .nav-links.open .nav-cta{display:block;text-align:center;}
  .hero{padding:6rem 1.5rem 4rem;}
  .hero-stats{gap:1.5rem;}
  section{padding:3.5rem 1.5rem;}
  .info-grid,.rechner-grid,.result-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;text-align:center;}
}