/* =============================================
   STROMVERGLEICH.ONLINE – Dual Energy Design
   ============================================= */

:root {
    --slate:        #0f172a;
    --slate-mid:    #1e293b;
    --strom:        #2563eb;
    --strom-light:  #dbeafe;
    --strom-mid:    #60a5fa;
    --gas:          #d97706;
    --gas-light:    #fef3c7;
    --gas-mid:      #fbbf24;
    --bg:           #f8fafc;
    --bg-card:      #ffffff;
    --border:       #e2e8f0;
    --text:         #1e293b;
    --muted:        #64748b;
    --white:        #ffffff;
    /* Aliases */
    --primary:      #2563eb;
    --accent:       #d97706;
    --primary-blue: #2563eb;
    --eco-green:    #2563eb;
    --accent-orange:#d97706;
    --bg-white:     #ffffff;
    --text-dark:    #1e293b;
    --light-gray:   #f8fafc;
    --border-c:     #e2e8f0;
}

*,*::before,*::after{box-sizing:border-box;}
body{font-family:'Segoe UI',system-ui,-apple-system,sans-serif;color:var(--text);background:var(--bg);line-height:1.65;margin:0;}
.container{max-width:1100px;margin:0 auto;padding:0 20px;}
a{color:var(--strom);text-decoration:none;}
a:hover{text-decoration:underline;}
h1,h2,h3{line-height:1.2;color:var(--slate);}

/* City Grid */
.city-grid{list-style:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:10px;padding:0;}
.city-grid li a{display:block;color:var(--text);padding:9px 13px;background:var(--bg);border-radius:7px;border-left:3px solid var(--strom);font-size:14px;transition:all 0.18s;text-decoration:none;}
.city-grid li a:hover{background:var(--strom);color:white;text-decoration:none;}
.city-grid li a span{display:block;font-size:11px;color:var(--muted);margin-top:2px;}
.city-grid li a:hover span{color:#bfdbfe;}

/* A-Z Nav */
.az-nav{display:flex;flex-wrap:wrap;gap:6px;margin:22px 0 34px;justify-content:center;background:var(--bg-card);padding:16px;border-radius:10px;box-shadow:0 1px 6px rgba(0,0,0,0.06);}
.az-btn{background:#f1f5f9;border:1px solid #e2e8f0;padding:6px 12px;border-radius:5px;cursor:pointer;font-size:14px;font-weight:700;color:var(--strom);transition:all 0.18s;text-decoration:none;line-height:1;}
.az-btn:hover{background:#dbeafe;text-decoration:none;}
.az-btn.active{background:var(--strom);color:white;border-color:var(--strom);}
.letter-group{margin-bottom:30px;background:var(--bg-card);padding:22px;border-radius:10px;box-shadow:0 1px 6px rgba(0,0,0,0.05);}
.letter-heading{color:var(--gas);border-bottom:2px solid #f1f5f9;padding-bottom:9px;margin-bottom:16px;font-size:20px;}

/* Cards */
.card{background:var(--bg-card);border-radius:10px;box-shadow:0 2px 10px rgba(0,0,0,0.06);padding:26px;}
.content-section{background:var(--bg-card);border-radius:10px;box-shadow:0 1px 8px rgba(0,0,0,0.05);padding:28px;margin-bottom:24px;}
.result-header{text-align:center;margin-bottom:26px;background:var(--bg-card);padding:28px;border-radius:10px;box-shadow:0 1px 8px rgba(0,0,0,0.05);}

/* Legal */
.legal-content{background:var(--bg-card);padding:32px;border-radius:10px;box-shadow:0 1px 8px rgba(0,0,0,0.05);}
.legal-content h2{color:var(--strom);margin:26px 0 12px;font-size:1.2rem;}
.legal-content h2:first-child{margin-top:0;}
.legal-content h3{color:var(--slate-mid);margin:20px 0 9px;font-size:1rem;}
.legal-content p{margin-bottom:13px;color:#374151;}

/* Iframe */
.iframe-container{background:var(--bg-card);min-height:800px;border-radius:10px;overflow:hidden;box-shadow:0 2px 10px rgba(0,0,0,0.06);}

/* Trust bar */
.trust-bar{display:flex;flex-wrap:wrap;gap:0;border-top:1px solid var(--border);margin-top:20px;padding-top:18px;}
.trust-bar-item{display:flex;align-items:center;gap:9px;flex:1;min-width:170px;padding:0 16px 0 0;}
.trust-bar-item:not(:last-child){border-right:1px solid var(--border);margin-right:16px;}
.trust-icon{width:34px;height:34px;border-radius:8px;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:17px;}
.trust-bar-item span{font-size:13px;color:var(--muted);font-weight:600;line-height:1.3;}

/* Trust bubbles */
.trust-bubbles{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:8px;margin:18px 0;}
.trust-bubbles li{background:var(--strom-light);color:#1d4ed8;padding:7px 14px;border-radius:20px;font-size:13px;font-weight:600;}

/* Quick cards */
.quick-links{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px;margin-bottom:28px;}
.quick-card{background:var(--bg-card);padding:20px;border-radius:10px;box-shadow:0 1px 6px rgba(0,0,0,0.05);text-decoration:none;color:inherit;transition:transform 0.18s,box-shadow 0.18s;display:block;border-top:3px solid var(--strom);}
.quick-card:hover{transform:translateY(-3px);box-shadow:0 6px 18px rgba(37,99,235,0.12);text-decoration:none;}
.quick-card h2{margin:0 0 7px;color:var(--strom);font-size:1rem;}
.quick-card p{margin:0;font-size:13px;color:var(--muted);}

/* Form */
.input-field{width:100%;padding:12px 14px;border:1.5px solid #cbd5e1;border-radius:7px;font-size:16px;outline:none;transition:border-color 0.2s,box-shadow 0.2s;background:white;}
.input-field:focus{border-color:var(--strom);box-shadow:0 0 0 3px rgba(37,99,235,0.12);}
.form-disclaimer{font-size:11px;color:#94a3b8;margin-top:10px;line-height:1.45;}
.form-poweredby{font-size:11px;color:#94a3b8;text-align:right;margin-bottom:7px;}

/* Breadcrumb */
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:18px;display:flex;flex-wrap:wrap;align-items:center;gap:4px;white-space:nowrap;}
.breadcrumb a{color:var(--strom);}
.breadcrumb span{color:var(--muted);}

/* Details/FAQ */
details{background:var(--bg-card);border:1px solid var(--border);padding:13px 17px;border-radius:8px;margin-bottom:9px;cursor:pointer;}
details summary{font-weight:600;font-size:15px;outline:none;list-style:none;color:var(--slate);}
details summary::-webkit-details-marker{display:none;}
details summary::after{content:'+';color:var(--strom);float:right;font-size:20px;line-height:1;font-weight:300;}
details[open] summary::after{content:'−';}
details p{margin-top:11px;margin-bottom:0;color:var(--muted);font-size:14px;}

/* Accordion */
.accordion{background:var(--bg-card);color:var(--text);cursor:pointer;padding:15px 17px;width:100%;border:1px solid var(--border);border-radius:7px;text-align:left;outline:none;font-size:14px;font-weight:600;transition:0.2s;margin-bottom:9px;position:relative;}
.accordion:hover{background:#f8fafc;}
.accordion:after{content:'\002B';font-size:18px;color:var(--muted);position:absolute;right:16px;top:50%;transform:translateY(-50%);}
.accordion.active:after{content:'\2212';color:var(--strom);}
.accordion.active{border-color:var(--strom);border-bottom-left-radius:0;border-bottom-right-radius:0;margin-bottom:0;}
.panel{padding:0 17px;background:var(--bg-card);max-height:0;overflow:hidden;transition:max-height 0.2s ease-out;border:1px solid var(--strom);border-top:none;border-bottom-left-radius:7px;border-bottom-right-radius:7px;margin-bottom:9px;opacity:0;}
.panel.show{opacity:1;padding:15px 17px;}
.panel p{margin:0;font-size:14px;color:#475569;}

/* Dynamic cities */
.dynamic-cities{background:var(--bg-card);padding:26px;border-radius:10px;border:1px solid var(--border);}
.city-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(185px,1fr));gap:7px;}
.city-list a{color:var(--strom);text-decoration:none;font-size:13px;}
.city-list a:hover{text-decoration:underline;}

/* Nearby tags */
.nearby-tags{display:flex;flex-wrap:wrap;gap:7px;}
.nearby-tags a{background:var(--bg-card);padding:5px 11px;border-radius:6px;font-size:13px;border:1px solid #cbd5e1;color:#374151;text-decoration:none;transition:all 0.18s;}
.nearby-tags a:hover{background:var(--strom);color:white;border-color:var(--strom);}

/* Grid helper */
.grid-container{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px;margin-top:20px;}

/* Silo page */
.silo-page{}

/* Responsive */
@media(max-width:768px){
    .city-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));}
    .trust-bar{flex-direction:column;gap:12px;}
    .trust-bar-item{border-right:none!important;margin-right:0!important;border-bottom:1px solid var(--border);padding-bottom:12px;}
    .trust-bar-item:last-child{border-bottom:none;}
    .quick-links{grid-template-columns:1fr;}
}