/* ============================================
   Rohrverstopfung Luzern — Shared Stylesheet
   ============================================ */

:root {
  --primary:      #1a5fa8;
  --primary-dark: #144d8a;
  --accent:       #e8820a;
  --accent-dark:  #c96f08;
  --text:         #1a1a1a;
  --text-light:   #5a5a6a;
  --bg:           #ffffff;
  --bg-light:     #f5f7fa;
  --border:       #dde3ec;
  --shadow:       0 2px 16px rgba(0,0,0,0.09);
  --radius:       8px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Segoe UI', Arial, Helvetica, sans-serif;
  color: var(--text);
  background: var(--bg);
  font-size: 16px;
  line-height: 1.65;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }

/* ---- TOP BAR ---- */
.topbar {
  background: #0d3d6b;
  color: #fff;
  text-align: center;
  padding: 10px 16px;
  font-size: 14px;
}

.topbar strong { display: block; font-size: 11px; text-transform: uppercase; letter-spacing: 1px; opacity: .75; margin-bottom: 2px; }

.topbar a.phone {
  color: #ffd166;
  font-size: 26px;
  font-weight: 800;
  letter-spacing: 1px;
  display: inline-block;
}

.topbar a.phone:hover { color: #fff; text-decoration: none; }

.topbar-row { display: flex; align-items: center; justify-content: center; gap: 24px; flex-wrap: wrap; }
.topbar-badge { font-size: 13px; opacity: .85; }

/* ---- HEADER / NAV ---- */
header {
  background: var(--primary);
  position: sticky;
  top: 0;
  z-index: 200;
  box-shadow: 0 2px 8px rgba(0,0,0,0.18);
}

.nav-container {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  height: 58px;
}

.logo {
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
}
.logo span { color: #ffd166; }
.logo small { display: block; font-size: 11px; font-weight: 400; opacity: .8; }

nav ul { list-style: none; display: flex; gap: 2px; align-items: center; }
nav ul li a {
  color: rgba(255,255,255,.9);
  padding: 8px 13px;
  border-radius: 6px;
  font-size: 14px;
  transition: background .18s;
  display: block;
  white-space: nowrap;
}
nav ul li a:hover,
nav ul li a.active {
  background: rgba(255,255,255,.15);
  text-decoration: none;
  color: #fff;
}

.nav-cta {
  background: var(--accent) !important;
  color: #fff !important;
  font-weight: 700 !important;
  padding: 8px 16px !important;
}
.nav-cta:hover { background: var(--accent-dark) !important; }

.nav-toggle {
  display: none;
  background: none;
  border: 2px solid rgba(255,255,255,.5);
  border-radius: 6px;
  cursor: pointer;
  padding: 7px 9px;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle span { display: block; width: 20px; height: 2px; background: #fff; border-radius: 2px; transition: .3s; }

/* ---- HERO ---- */
.hero {
  background: linear-gradient(135deg, #1a5fa8 0%, #0d3d6b 100%);
  color: #fff;
  padding: 72px 16px 64px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content { position: relative; max-width: 700px; margin: 0 auto; }

.hero h1 {
  font-size: 1.95rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 18px;
  text-shadow: 0 1px 4px rgba(0,0,0,.2);
}

.hero-lead {
  font-size: 1.05rem;
  opacity: .92;
  margin-bottom: 32px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.hero-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-bottom: 36px; }

.hero-trust {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  font-size: 13px;
  opacity: .8;
}
.hero-trust span { display: flex; align-items: center; gap: 5px; }

/* ---- BUTTONS ---- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  padding: 14px 30px;
  border-radius: 50px;
  font-size: 1.05rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: background .18s, transform .12s, box-shadow .18s;
  box-shadow: 0 4px 14px rgba(232,130,10,.4);
}
.btn-primary:hover { background: var(--accent-dark); text-decoration: none; transform: translateY(-2px); box-shadow: 0 6px 18px rgba(232,130,10,.45); }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: #fff;
  padding: 13px 26px;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  border: 2px solid rgba(255,255,255,.55);
  transition: border-color .18s, background .18s;
}
.btn-secondary:hover { border-color: #fff; background: rgba(255,255,255,.1); text-decoration: none; }

.btn-white {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  color: var(--accent-dark);
  padding: 14px 34px;
  border-radius: 50px;
  font-size: 1.05rem;
  font-weight: 700;
  transition: transform .12s, box-shadow .18s;
  box-shadow: 0 4px 14px rgba(0,0,0,.12);
}
.btn-white:hover { text-decoration: none; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,.18); }

.btn-full { width: 100%; justify-content: center; border-radius: var(--radius); padding: 14px; font-size: 1rem; }

/* ---- LAYOUT ---- */
.container { max-width: 1120px; margin: 0 auto; }

section { padding: 60px 16px; }

.section-label {
  text-align: center;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--accent);
  margin-bottom: 8px;
}

.section-title {
  text-align: center;
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 8px;
  line-height: 1.3;
}

.section-subtitle {
  text-align: center;
  color: var(--text-light);
  margin-bottom: 44px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

/* ---- CARDS ---- */
.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 24px;
  box-shadow: var(--shadow);
  transition: transform .18s, box-shadow .18s;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 6px 24px rgba(0,0,0,.12); }

.card-icon { font-size: 2.4rem; margin-bottom: 14px; }
.card h3 { color: var(--primary); margin-bottom: 10px; font-size: 1.05rem; font-weight: 700; }
.card p { color: var(--text-light); font-size: .95rem; }

/* ---- USP SECTION ---- */
.usp-section { background: var(--bg-light); }

.usp-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }

.usp-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--bg);
  padding: 20px;
  border-radius: 12px;
  border: 1px solid var(--border);
}

.usp-icon { font-size: 1.9rem; flex-shrink: 0; }
.usp-item h3 { color: var(--primary); margin-bottom: 4px; font-size: 1rem; }
.usp-item p { color: var(--text-light); font-size: .9rem; }

/* ---- CTA BANNER ---- */
.cta-banner {
  background: linear-gradient(135deg, var(--accent) 0%, #c45c00 100%);
  color: #fff;
  text-align: center;
  padding: 60px 16px;
}
.cta-banner h2 { font-size: 1.9rem; font-weight: 800; margin-bottom: 12px; }
.cta-banner p { margin-bottom: 28px; opacity: .95; font-size: 1.05rem; max-width: 520px; margin-left: auto; margin-right: auto; }

/* ---- CITY LINKS ---- */
.cities-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }

.city-link {
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 12px;
  text-align: center;
  font-weight: 600;
  font-size: .9rem;
  color: var(--primary);
  transition: background .18s, color .18s;
  display: block;
}
.city-link:hover { background: var(--primary); color: #fff; text-decoration: none; }

/* ---- BREADCRUMBS ---- */
.breadcrumb {
  background: var(--bg-light);
  border-bottom: 1px solid var(--border);
  padding: 11px 16px;
  font-size: .85rem;
  color: var(--text-light);
}
.breadcrumb a { color: var(--primary); }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb .sep { margin: 0 6px; color: #aaa; }

/* ---- PAGE HERO (subpages) ---- */
.page-hero {
  background: linear-gradient(135deg, var(--primary) 0%, #0d3d6b 100%);
  color: #fff;
  padding: 48px 16px 44px;
  text-align: center;
}
.page-hero h1 { font-size: 1.65rem; font-weight: 800; margin-bottom: 10px; line-height: 1.3; }
.page-hero p { opacity: .9; max-width: 560px; margin: 0 auto; font-size: 1rem; }

/* ---- CONTENT PROSE ---- */
.content-section {
  max-width: 820px;
  margin: 0 auto;
  padding: 52px 16px;
}
.content-section h2 { color: var(--primary); font-size: 1.45rem; margin: 36px 0 12px; font-weight: 700; }
.content-section h3 { color: var(--primary-dark); font-size: 1.1rem; margin: 22px 0 8px; font-weight: 700; }
.content-section p { color: var(--text-light); margin-bottom: 16px; line-height: 1.75; }
.content-section ul, .content-section ol { color: var(--text-light); padding-left: 24px; margin-bottom: 18px; line-height: 1.75; }
.content-section li { margin-bottom: 8px; }

/* ---- CONTACT ---- */
.contact-section { background: var(--bg-light); }
.contact-grid { display: grid; grid-template-columns: 1fr; gap: 40px; max-width: 900px; margin: 0 auto; }

.contact-info h2 { color: var(--primary); font-size: 1.4rem; margin-bottom: 20px; font-weight: 700; }

.contact-detail { display: flex; gap: 14px; margin-bottom: 18px; align-items: flex-start; }
.contact-detail .ci-icon { font-size: 1.5rem; flex-shrink: 0; margin-top: 2px; }
.contact-detail p { color: var(--text-light); font-size: .95rem; margin: 0; }
.contact-detail a { color: var(--primary); font-weight: 600; }
.contact-detail strong { display: block; color: var(--text); margin-bottom: 2px; font-size: .9rem; }

.contact-form { background: var(--bg); border: 1px solid var(--border); border-radius: 12px; padding: 32px 28px; box-shadow: var(--shadow); }
.contact-form h2 { color: var(--primary); font-size: 1.3rem; margin-bottom: 22px; font-weight: 700; }

.form-row { display: grid; grid-template-columns: 1fr; gap: 16px; }

.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 6px; color: var(--text); font-size: .9rem; }
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-size: .95rem;
  font-family: inherit;
  transition: border-color .2s, box-shadow .2s;
  background: var(--bg);
  color: var(--text);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,95,168,.12);
}
.form-group textarea { min-height: 120px; resize: vertical; }

.form-note { font-size: .82rem; color: var(--text-light); margin-top: 12px; text-align: center; }

/* ---- IMPRESSUM ---- */
.impressum-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
.impressum-block { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.impressum-block h2 { color: var(--primary); font-size: 1.1rem; margin-bottom: 12px; font-weight: 700; }
.impressum-block p { color: var(--text-light); font-size: .95rem; line-height: 1.75; }
.impressum-block a { color: var(--primary); }

/* ---- BLOG ---- */
.blog-article { max-width: 760px; margin: 0 auto; padding: 52px 16px; }

.article-meta {
  color: var(--text-light);
  font-size: .875rem;
  margin-bottom: 28px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.article-meta span { display: flex; align-items: center; gap: 5px; }

.blog-article h2 { color: var(--primary); font-size: 1.45rem; margin: 36px 0 12px; font-weight: 700; }
.blog-article h3 { color: var(--primary-dark); font-size: 1.1rem; margin: 24px 0 8px; font-weight: 700; }
.blog-article p { color: var(--text-light); margin-bottom: 16px; line-height: 1.78; }
.blog-article ul, .blog-article ol { color: var(--text-light); padding-left: 24px; margin-bottom: 20px; line-height: 1.75; }
.blog-article li { margin-bottom: 8px; }

.tip-box {
  background: #e8f0fb;
  border-left: 4px solid var(--primary);
  padding: 16px 20px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 24px 0;
  color: var(--text-light);
  font-size: .95rem;
}
.tip-box strong { color: var(--primary); display: block; margin-bottom: 4px; }

.warning-box {
  background: #fff3e0;
  border-left: 4px solid var(--accent);
  padding: 16px 20px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 24px 0;
  color: var(--text-light);
  font-size: .95rem;
}
.warning-box strong { color: var(--accent-dark); display: block; margin-bottom: 4px; }

.blog-cta {
  background: linear-gradient(135deg, var(--primary) 0%, #0d3d6b 100%);
  color: #fff;
  border-radius: 12px;
  padding: 28px;
  text-align: center;
  margin: 40px 0;
}
.blog-cta h3 { margin-bottom: 8px; font-size: 1.2rem; }
.blog-cta p { opacity: .9; margin-bottom: 18px; font-size: .95rem; }

/* ---- TABLE ---- */
.styled-table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: .95rem; box-shadow: var(--shadow); border-radius: var(--radius); overflow: hidden; }
.styled-table th { background: var(--primary); color: #fff; padding: 12px 16px; text-align: left; font-size: .9rem; }
.styled-table td { padding: 11px 16px; border-bottom: 1px solid var(--border); color: var(--text-light); }
.styled-table tr:last-child td { border-bottom: none; }
.styled-table tr:nth-child(even) td { background: var(--bg-light); }

/* ---- BADGE ---- */
.badge {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  border-radius: 4px;
  padding: 2px 8px;
  font-size: .78rem;
  font-weight: 700;
  vertical-align: middle;
  margin-left: 6px;
}

/* ---- FOOTER ---- */
footer {
  background: #0d1b2e;
  color: #8a9ab5;
  padding: 52px 16px 28px;
}

.footer-grid {
  max-width: 1120px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  padding-bottom: 36px;
  border-bottom: 1px solid #1f2d45;
  margin-bottom: 24px;
}

.footer-brand { }
.footer-brand .logo { font-size: 16px; margin-bottom: 10px; display: block; }
.footer-brand p { font-size: .88rem; line-height: 1.7; max-width: 260px; }
.footer-brand .footer-phone { color: #ffd166; font-size: 1.1rem; font-weight: 700; margin-top: 12px; display: block; }
.footer-brand .footer-phone:hover { color: #fff; text-decoration: none; }

.footer-col h3 { color: #fff; font-size: .95rem; margin-bottom: 14px; font-weight: 700; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 9px; }
.footer-col ul li a { color: #8a9ab5; font-size: .88rem; transition: color .18s; }
.footer-col ul li a:hover { color: #fff; text-decoration: none; }
.footer-col p { font-size: .88rem; line-height: 1.7; }
.footer-col a { color: #8a9ab5; }
.footer-col a:hover { color: #fff; }

.footer-bottom {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: .82rem;
  color: #556070;
}
.footer-bottom a { color: #556070; }
.footer-bottom a:hover { color: #fff; text-decoration: none; }

/* ============ RESPONSIVE ============ */
@media (min-width: 600px) {
  .hero h1 { font-size: 2.3rem; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .usp-grid { grid-template-columns: repeat(2, 1fr); }
  .cities-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr 1fr; }
  .impressum-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 900px) {
  .hero h1 { font-size: 2.75rem; }
  .hero-lead { font-size: 1.15rem; }
  .cards { grid-template-columns: repeat(3, 1fr); }
  .usp-grid { grid-template-columns: repeat(3, 1fr); }
  .contact-grid { grid-template-columns: 1fr 1.6fr; }
  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
  .cities-grid { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  header { position: sticky; }
  nav {
    display: none;
    position: absolute;
    top: 58px;
    left: 0;
    right: 0;
    background: #0d3d6b;
    padding: 12px 16px;
    box-shadow: 0 6px 16px rgba(0,0,0,.25);
  }
  nav.open { display: block; }
  nav ul { flex-direction: column; gap: 2px; }
  nav ul li a { padding: 12px 16px; font-size: 15px; border-radius: 6px; }
}

@media (max-width: 400px) {
  .topbar a.phone { font-size: 22px; }
}