/* =========================================================
   DSLVERGLEICH.ONLINE: Dark Tech Design
   Farben: Signal-Blau #0057ff | Cyan #00e5ff | Dunkel #0a0f1e
   ========================================================= */

:root {
  /* Core Palette */
  --dark:      #0a0f1e;
  --dark-mid:  #111827;
  --dark-card: #141d2e;
  --dark-lift: #1c2840;
  --border:    rgba(0,229,255,0.12);
  --border-hi: rgba(0,229,255,0.28);

  /* Brand */
  --blue:      #0057ff;
  --blue-mid:  #0066ff;
  --blue-glow: rgba(0,87,255,0.22);
  --cyan:      #00e5ff;
  --cyan-soft: rgba(0,229,255,0.15);
  --cyan-glow: rgba(0,229,255,0.20);

  /* Glasfaser-Akzent */
  --fiber:     #7c3aed;
  --fiber-soft:rgba(124,58,237,0.18);

  /* Neutral */
  --text:      #e2e8f0;
  --text-soft: #94a3b8;
  --text-muted:#4a5568;
  --white:     #ffffff;

  /* Status */
  --green:     #10b981;
  --green-soft:rgba(16,185,129,0.14);
  --orange:    #f59e0b;

  /* Shadows */
  --shadow-sm: 0 1px 4px rgba(0,0,0,0.5);
  --shadow:    0 4px 16px rgba(0,0,0,0.5), 0 0 1px rgba(0,229,255,0.1);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.6), 0 0 2px rgba(0,229,255,0.15);
  --glow-blue: 0 0 20px rgba(0,87,255,0.3);
  --glow-cyan: 0 0 20px rgba(0,229,255,0.25);

  --radius:    10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
}

/* RESET */
*, *::before, *::after { box-sizing: border-box; }
body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--dark);
  color: var(--text);
  line-height: 1.65;
  margin: 0;
  -webkit-font-smoothing: antialiased;
}
html { scroll-behavior: smooth; }
a { color: var(--cyan); text-decoration: none; transition: color 0.18s; }
a:hover { color: #fff; text-decoration: none; }
h1, h2, h3, h4 { line-height: 1.2; color: #fff; }
.container { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

/* ── HEADER ── */
.site-header {
  background: rgba(10,15,30,0.96);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 1000;
}
.header-inner {
  display: flex; align-items: center;
  justify-content: space-between; height: 66px; gap: 20px;
}
.logo a { display: flex; align-items: center; gap: 11px; text-decoration: none; }
.logo-icon { width: 40px; height: 40px; flex-shrink: 0; }
.logo-wordmark { display: flex; align-items: baseline; line-height: 1; }
.logo-w1 { font-size: 18px; font-weight: 900; color: var(--cyan); letter-spacing: -0.5px; }
.logo-w2 { font-size: 18px; font-weight: 700; color: #fff; letter-spacing: -0.3px; }
.logo-w3 { font-size: 18px; font-weight: 400; color: var(--text-soft); }

nav ul { list-style: none; display: flex; gap: 2px; margin: 0; padding: 0; }
nav a {
  color: var(--text-soft); font-weight: 600; font-size: 14px;
  text-decoration: none; padding: 8px 13px; border-radius: 8px;
  transition: all 0.18s; display: block;
}
nav a:hover { color: #fff; background: rgba(255,255,255,0.07); }
nav a.nav-cta {
  background: var(--blue); color: #fff !important;
  box-shadow: var(--glow-blue);
}
nav a.nav-cta:hover { background: var(--blue-mid); }

main { padding-top: 40px; padding-bottom: 70px; min-height: 60vh; }

/* ── CARDS ── */
.card {
  background: var(--dark-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}
.card-body { padding: 28px; }
.card-glow {
  border-color: var(--border-hi);
  box-shadow: var(--shadow), 0 0 0 1px rgba(0,229,255,0.08);
}

/* ── TECH GRID LINES (dekorativ) ── */
.grid-bg {
  background-image:
    linear-gradient(rgba(0,229,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,255,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
}

/* ── HERO ── */
.hero-wrap {
  position: relative; overflow: hidden;
  border-radius: var(--radius-xl);
  padding: 60px 48px;
  margin-top: 10px; margin-bottom: 36px;
  display: flex; flex-wrap: wrap; gap: 40px; align-items: center;
  background: var(--dark-mid);
}
.hero-wrap::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 70% 80% at 20% 50%, rgba(0,87,255,0.18) 0%, transparent 60%),
              radial-gradient(ellipse 50% 60% at 80% 30%, rgba(0,229,255,0.12) 0%, transparent 55%);
  pointer-events: none;
}
.hero-grid-lines {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(0,229,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,255,0.05) 1px, transparent 1px);
  background-size: 56px 56px;
}
.hero-wrap > * { position: relative; z-index: 1; }
.hero-text { flex: 1; min-width: 280px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(0,229,255,0.1); border: 1px solid rgba(0,229,255,0.25);
  padding: 5px 13px; border-radius: 999px;
  font-size: 12px; font-weight: 700; color: var(--cyan);
  letter-spacing: 0.3px; margin-bottom: 18px;
}
.hero-badge-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--cyan); box-shadow: 0 0 6px var(--cyan);
}
.hero-text h1 {
  font-size: 2.2rem; color: #fff; line-height: 1.15;
  margin: 0 0 16px; font-weight: 900;
  text-shadow: 0 2px 20px rgba(0,87,255,0.3);
}
.hero-text h1 .hl { color: var(--cyan); }
.hero-text p { color: var(--text-soft); font-size: 15px; margin: 0; }
.hero-trust { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 24px; }
.hero-trust-item {
  display: flex; align-items: center; gap: 7px;
  font-size: 13px; color: var(--text-soft); font-weight: 600;
}
.trust-check {
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--green-soft); border: 1px solid var(--green);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.trust-check::after {
  content: '✓'; color: var(--green); font-size: 10px; font-weight: 900;
}

/* ── SUCHKARTE im Hero ── */
.search-card {
  flex: 1; min-width: 310px;
  background: rgba(20,29,46,0.95);
  border: 1px solid var(--border-hi);
  border-radius: var(--radius-lg);
  padding: 26px;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(10px);
}
.search-card-title { font-size: 16px; font-weight: 800; color: #fff; margin-bottom: 4px; }
.search-card-sub { font-size: 12px; color: var(--text-soft); margin-bottom: 18px; }
.form-label {
  display: block; font-size: 11px; font-weight: 700;
  color: var(--text-soft); text-transform: uppercase;
  letter-spacing: 0.5px; margin-bottom: 5px;
}
.input-field {
  width: 100%; padding: 12px 14px;
  background: rgba(255,255,255,0.05);
  border: 1.5px solid rgba(0,229,255,0.2);
  border-radius: 8px; font-size: 15px;
  color: #fff; outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.input-field::placeholder { color: #4a5568; }
.input-field:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0,229,255,0.12);
}
.input-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 14px; }
.btn-search {
  width: 100%; padding: 14px;
  background: linear-gradient(135deg, var(--blue) 0%, #0080ff 100%);
  color: #fff !important; border: none; border-radius: 8px;
  font-size: 16px; font-weight: 800; cursor: pointer;
  box-shadow: var(--glow-blue);
  transition: transform 0.15s, box-shadow 0.15s;
}
.btn-search:hover { transform: translateY(-1px); box-shadow: 0 0 28px rgba(0,87,255,0.5); }
.form-disclaimer {
  font-size: 11px; color: #4a5568; margin-top: 10px; line-height: 1.45;
}

/* ── SCHRITTE ── */
.steps-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; margin-bottom: 32px; }
.step-card {
  background: var(--dark-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 22px; text-align: center;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.step-card:hover { border-color: var(--border-hi); box-shadow: var(--glow-cyan); }
.step-num {
  width: 38px; height: 38px;
  background: linear-gradient(135deg, var(--blue), #0080ff);
  border-radius: 50%; font-weight: 900; font-size: 16px;
  color: #fff; display: flex; align-items: center; justify-content: center;
  margin: 0 auto 12px; box-shadow: var(--glow-blue);
}
.step-card h3 { font-size: 14px; color: #fff; margin: 0 0 6px; }
.step-card p  { font-size: 13px; color: var(--text-soft); margin: 0; }

/* ── TECHNOLOGIE KARTEN ── */
.tech-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: 14px; margin: 20px 0; }
.tech-card {
  background: var(--dark-lift); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px;
  transition: border-color 0.2s;
}
.tech-card:hover { border-color: var(--border-hi); }
.tech-tag {
  display: inline-block; padding: 3px 10px; border-radius: 6px;
  font-size: 11px; font-weight: 700; margin-bottom: 10px;
  letter-spacing: 0.3px;
}
.tag-dsl    { background: rgba(0,87,255,0.2);   color: #60a5fa; border: 1px solid rgba(0,87,255,0.3); }
.tag-kabel  { background: rgba(245,158,11,0.2); color: #fbbf24; border: 1px solid rgba(245,158,11,0.3); }
.tag-ftth   { background: rgba(124,58,237,0.2); color: #a78bfa; border: 1px solid rgba(124,58,237,0.3); }
.tag-lte    { background: rgba(16,185,129,0.2); color: #34d399; border: 1px solid rgba(16,185,129,0.3); }
.tech-card h4 { font-size: 14px; color: #fff; margin: 0 0 6px; }
.tech-card p  { font-size: 13px; color: var(--text-soft); margin: 0; line-height: 1.55; }

/* ── CONTENT SECTIONS ── */
.content-section {
  background: var(--dark-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 28px; margin-bottom: 24px;
}
.content-section h2 {
  color: var(--cyan); font-size: 1.15rem;
  margin: 24px 0 10px; border-bottom: 1px solid var(--border);
  padding-bottom: 8px;
}
.content-section h2:first-child { margin-top: 0; }
.content-section h3 { color: #fff; font-size: 1rem; margin: 18px 0 8px; }
.content-section p  { color: var(--text-soft); font-size: 14px; line-height: 1.7; margin-bottom: 12px; }
.content-section ul { padding-left: 18px; }
.content-section ul li { color: var(--text-soft); font-size: 14px; margin-bottom: 7px; line-height: 1.6; }
.content-section ul li strong { color: var(--text); }
.content-section a { color: var(--cyan); }
.content-section a:hover { color: #fff; }

/* ── IFRAME / WIDGET ── */
.widget-wrap {
  background: var(--dark-card); border: 1px solid var(--border-hi);
  border-radius: var(--radius-lg); overflow: hidden;
  margin-bottom: 24px; box-shadow: var(--shadow-lg);
}
.widget-header {
  background: linear-gradient(90deg, var(--dark-lift), var(--dark-mid));
  border-bottom: 1px solid var(--border);
  padding: 12px 20px;
  display: flex; align-items: center; justify-content: space-between;
}
.widget-badge {
  display: flex; align-items: center; gap: 7px;
  font-size: 12px; font-weight: 700; color: var(--text-soft);
}
.widget-badge-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--green); box-shadow: 0 0 6px var(--green);
}
.widget-powered { font-size: 11px; color: #4a5568; }
.widget-body { background: #fff; min-height: 500px; }
.widget-disclaimer {
  padding: 10px 18px;
  font-size: 11px; color: #4a5568;
  border-top: 1px solid var(--border);
}

/* ── BREADCRUMB ── */
.breadcrumb {
  font-size: 13px; color: var(--text-soft); margin-bottom: 20px;
  display: flex; flex-wrap: wrap; align-items: center; gap: 4px;
}
.breadcrumb a { color: var(--cyan); }
.breadcrumb a:hover { color: #fff; }

/* ── INFO BOX ── */
.info-box {
  background: rgba(0,229,255,0.08); border-left: 3px solid var(--cyan);
  padding: 14px 18px; border-radius: 0 8px 8px 0; margin: 16px 0;
}
.info-box p { margin: 0; font-size: 13px; color: var(--text-soft); }
.info-box strong { color: var(--cyan); }

/* ── FAQ ── */
details.faq-item {
  background: var(--dark-lift); border: 1px solid var(--border);
  border-radius: 8px; margin-bottom: 8px; cursor: pointer;
  transition: border-color 0.2s;
}
details.faq-item[open] { border-color: var(--border-hi); }
details.faq-item summary {
  padding: 14px 18px; font-weight: 600; font-size: 14px;
  color: #fff; list-style: none; outline: none;
  display: flex; justify-content: space-between; align-items: center;
}
details.faq-item summary::-webkit-details-marker { display: none; }
details.faq-item summary::after {
  content: '+'; color: var(--cyan); font-size: 20px; font-weight: 300; line-height: 1;
}
details.faq-item[open] summary::after { content: '−'; }
details.faq-item .faq-body {
  padding: 0 18px 16px; font-size: 13px;
  color: var(--text-soft); line-height: 1.65;
}

/* ── A-Z NAV ── */
.az-nav {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin: 20px 0 30px; padding: 16px;
  background: var(--dark-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); justify-content: center;
}
.az-btn {
  background: var(--dark-lift); border: 1px solid var(--border);
  color: var(--cyan); padding: 6px 12px; border-radius: 6px;
  font-size: 14px; font-weight: 700; cursor: pointer;
  transition: all 0.18s; text-decoration: none; line-height: 1;
}
.az-btn:hover { background: var(--cyan); color: #000; border-color: var(--cyan); }
.az-btn.active { background: var(--blue); color: #fff; border-color: var(--blue); box-shadow: var(--glow-blue); }

/* ── STÄDTE GRID ── */
.city-grid {
  list-style: none; padding: 0; margin: 0;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(210px,1fr)); gap: 8px;
}
.city-grid li a {
  display: block; padding: 10px 14px;
  background: var(--dark-lift); border: 1px solid var(--border);
  border-radius: 8px; color: var(--text); font-size: 13px;
  transition: all 0.18s; text-decoration: none;
  border-left: 3px solid var(--blue);
}
.city-grid li a:hover {
  background: var(--blue); color: #fff;
  border-left-color: var(--cyan); text-decoration: none;
}
.city-grid li a span { display: block; font-size: 11px; color: var(--text-soft); margin-top: 2px; }
.city-grid li a:hover span { color: rgba(255,255,255,0.7); }

/* ── LETTER GROUPS ── */
.letter-group {
  background: var(--dark-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 22px; margin-bottom: 20px;
}
.letter-heading {
  color: var(--cyan); font-size: 1.1rem;
  border-bottom: 1px solid var(--border); padding-bottom: 8px; margin-bottom: 16px;
}

/* ── BUNDESLAND KARTEN ── */
.bl-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px,1fr)); gap: 14px; margin-bottom: 40px; }
.bl-card {
  background: var(--dark-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 20px;
  transition: transform 0.18s, border-color 0.18s, box-shadow 0.18s;
}
.bl-card:hover {
  transform: translateY(-2px); border-color: var(--border-hi);
  box-shadow: var(--glow-cyan);
}
.bl-name { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.bl-name span { font-size: 11px; color: var(--text-muted); font-weight: 400; margin-left: 5px; }
.bl-btn {
  display: block; width: 100%; text-align: center;
  padding: 11px; background: linear-gradient(135deg, var(--blue), #0080ff);
  color: #fff !important; border-radius: 8px; font-weight: 700; font-size: 13px;
  text-decoration: none; box-shadow: var(--glow-blue);
  transition: box-shadow 0.18s;
}
.bl-btn:hover { box-shadow: 0 0 24px rgba(0,87,255,0.5); }

/* ── NEARBY TAGS ── */
.nearby-tags { display: flex; flex-wrap: wrap; gap: 7px; }
.nearby-tags a {
  background: var(--dark-lift); padding: 5px 12px;
  border: 1px solid var(--border); border-radius: 6px;
  font-size: 13px; color: var(--text); text-decoration: none;
  transition: all 0.18s;
}
.nearby-tags a:hover { background: var(--blue); color: #fff; border-color: var(--blue); }

/* ── CROSS SELL ── */
.cross-sell-box {
  background: rgba(0,229,255,0.06); border: 1px solid rgba(0,229,255,0.2);
  border-radius: var(--radius); padding: 18px 22px;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px; margin-bottom: 24px;
}
.cross-sell-box p { margin: 0; font-size: 14px; color: var(--text-soft); }
.cross-sell-box strong { color: var(--cyan); }

/* ── PARTNER-GRID ── */
.partner-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px,1fr)); gap: 8px; margin-top: 14px; }
.partner-btn {
  display: block; padding: 9px 10px; text-align: center;
  border-radius: 8px; font-weight: 700; font-size: 13px;
  text-decoration: none; transition: opacity 0.18s, transform 0.18s;
  border: 1px solid transparent;
}
.partner-btn:hover { opacity: 0.88; transform: translateY(-1px); text-decoration: none; }
.pbtn-strom  { background: rgba(217,119,6,0.2);  color: #fbbf24; border-color: rgba(217,119,6,0.3); }
.pbtn-gas    { background: rgba(13,148,136,0.2); color: #2dd4bf; border-color: rgba(13,148,136,0.3); }
.pbtn-kfz    { background: rgba(59,130,246,0.2); color: #60a5fa; border-color: rgba(59,130,246,0.3); }
.pbtn-solar  { background: rgba(245,158,11,0.2); color: #fbbf24; border-color: rgba(245,158,11,0.3); }
.pbtn-giro   { background: rgba(124,58,237,0.2); color: #a78bfa; border-color: rgba(124,58,237,0.3); }
.pbtn-kredit { background: rgba(16,185,129,0.2); color: #34d399; border-color: rgba(16,185,129,0.3); }

/* ── QUICK LINKS ── */
.quick-links { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px,1fr)); gap: 14px; margin-bottom: 28px; }
.quick-card {
  background: var(--dark-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 20px;
  display: block; color: inherit;
  text-decoration: none; transition: transform 0.18s, border-color 0.18s;
  border-top: 2px solid var(--blue);
}
.quick-card:hover {
  transform: translateY(-3px); border-color: var(--cyan);
  text-decoration: none;
}
.quick-card h2 { margin: 0 0 7px; color: var(--cyan); font-size: 0.95rem; }
.quick-card p  { margin: 0; font-size: 13px; color: var(--text-soft); }

/* ── LEGAL ── */
.legal-content { color: var(--text-soft); }
.legal-content h1 { color: #fff; margin-bottom: 22px; }
.legal-content h2 { color: var(--cyan); font-size: 1.1rem; margin: 24px 0 10px; }
.legal-content h3 { color: #fff; font-size: 0.95rem; margin: 18px 0 8px; }
.legal-content p  { font-size: 14px; line-height: 1.7; margin-bottom: 12px; }
.legal-content a  { color: var(--cyan); }

/* ── HOWTO ── */
.howto-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px,1fr)); gap: 12px; margin: 18px 0; }
.howto-step { display: flex; gap: 12px; align-items: flex-start; }
.howto-num {
  width: 30px; height: 30px; flex-shrink: 0;
  background: var(--blue); border-radius: 50%;
  font-weight: 900; font-size: 13px; color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--glow-blue);
}
.howto-body strong { display: block; font-size: 13px; color: #fff; margin-bottom: 3px; }
.howto-body p { font-size: 12px; color: var(--text-soft); margin: 0; }

/* ── RESULT HEADER ── */
.result-header {
  background: var(--dark-card); border: 1px solid var(--border-hi);
  border-radius: var(--radius-lg); padding: 30px; margin-bottom: 24px;
  border-top: 3px solid var(--cyan);
}
.result-header h1 { font-size: 1.6rem; color: #fff; margin-bottom: 10px; }

/* ── DYNAMIC CITY LIST ── */
.city-list { list-style: none; padding: 0; margin: 0; }
.city-list a { color: var(--cyan); font-size: 13px; display: block; padding: 2px 0; }
.city-list a:hover { color: #fff; }
.cities-two-col { columns: 2; gap: 20px; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 10px 20px; border-radius: 8px;
  font-weight: 700; font-size: 14px; cursor: pointer;
  border: none; text-decoration: none; transition: all 0.18s;
}
.btn-primary { background: var(--blue); color: #fff !important; box-shadow: var(--glow-blue); }
.btn-primary:hover { box-shadow: 0 0 28px rgba(0,87,255,0.5); }
.btn-outline { background: transparent; color: var(--cyan) !important; border: 1.5px solid var(--border-hi); }
.btn-outline:hover { border-color: var(--cyan); background: var(--cyan-soft); }
.btn-sm { padding: 7px 14px; font-size: 12px; border-radius: 6px; }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .hero-wrap { padding: 36px 24px; }
  .hero-text h1 { font-size: 1.6rem; }
  .steps-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .city-grid { grid-template-columns: repeat(auto-fill, minmax(160px,1fr)); }
  .quick-links { grid-template-columns: 1fr; }
  .input-row { grid-template-columns: 1fr; }
  .cities-two-col { columns: 1; }
  nav ul { flex-wrap: wrap; justify-content: center; }
  .header-inner { flex-direction: column; height: auto; padding: 10px 0; gap: 8px; }
  main { padding-top: 24px; }
}