/* ============================================
   installateur-not.de — Hauptstylesheet
   Farben: #0f2c63 (Blau) | #ff6600 (Orange)
   ============================================ */

:root {
  --blau:         #0f2c63;
  --blau-hell:    #1a4090;
  --blau-mittel:  #0d2356;
  --orange:       #ff6600;
  --orange-hell:  #ff7f2a;
  --orange-dunkel:#e05500;
  --weiss:        #ffffff;
  --grau-hell:    #f5f7fa;
  --grau-mittel:  #e8ecf0;
  --grau-text:    #6b7280;
  --dunkel:       #1a1a2e;
  --text:         #2d3748;

  --schatten:     0 4px 20px rgba(15,44,99,0.12);
  --schatten-lg:  0 8px 40px rgba(15,44,99,0.18);
  --radius:       8px;
  --radius-lg:    16px;
  --transition:   0.25s ease;
}

/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Barlow', sans-serif;
  color: var(--text);
  background: var(--weiss);
  line-height: 1.65;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: 'Oswald', sans-serif;
  line-height: 1.2;
  color: var(--blau);
}

h1 { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 700; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); font-weight: 600; }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); font-weight: 600; }

p { margin-bottom: 1rem; }
a { color: var(--orange); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--orange-dunkel); }

img { max-width: 100%; height: auto; display: block; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

section { padding: 80px 0; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 2rem;
  border-radius: var(--radius);
  font-family: 'Oswald', sans-serif;
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-orange {
  background: var(--orange);
  color: var(--weiss);
  box-shadow: 0 4px 14px rgba(255,102,0,0.35);
}
.btn-orange:hover {
  background: var(--orange-dunkel);
  color: var(--weiss);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255,102,0,0.45);
}

.btn-weiss {
  background: var(--weiss);
  color: var(--blau);
  box-shadow: var(--schatten);
}
.btn-weiss:hover {
  background: var(--grau-hell);
  color: var(--blau);
  transform: translateY(-2px);
}

.btn-blau {
  background: var(--blau);
  color: var(--weiss);
}
.btn-blau:hover {
  background: var(--blau-mittel);
  color: var(--weiss);
  transform: translateY(-2px);
}

/* ── Section Header ── */
.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}
.section-eyebrow {
  display: inline-block;
  color: var(--orange);
  font-family: 'Oswald', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}
.section-header h2 { margin-bottom: 1rem; }
.section-header p {
  color: var(--grau-text);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* ── Trennlinie mit Orange ── */
.orange-line {
  width: 60px;
  height: 4px;
  background: var(--orange);
  border-radius: 2px;
  margin: 1rem auto 0;
}

/* ── Hero Section ── */
.hero {
  background: linear-gradient(135deg, var(--blau) 0%, var(--blau-hell) 60%, #1e50a8 100%);
  color: var(--weiss);
  min-height: 90vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 120px 0 80px;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../images/hero-bg.webp') center/cover no-repeat;
  opacity: 0.35;
}

@media (max-width: 768px) {
  .hero::before {
    background: url('../images/hero-bg-mobile.webp') center top / cover no-repeat;
    opacity: 0.45;
  }
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255,102,0,0.15);
  border: 1px solid rgba(255,102,0,0.4);
  color: #ffb380;
  padding: 0.4rem 1rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.hero h1 {
  color: var(--weiss);
  margin-bottom: 1.25rem;
}

.hero h1 span { color: var(--orange); }

.hero-lead {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.hero-stats {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.15);
}
.hero-stat-num {
  font-family: 'Oswald', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--orange);
}
.hero-stat-label {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.7);
}

.hero-card {
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
}
.hero-card h3 {
  color: var(--weiss);
  margin-bottom: 1.5rem;
  font-size: 1.3rem;
}

.contact-form .form-group { margin-bottom: 1rem; }
.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: var(--radius);
  color: var(--weiss);
  font-family: 'Barlow', sans-serif;
  font-size: 0.95rem;
  transition: border-color var(--transition);
}
.contact-form input::placeholder,
.contact-form textarea::placeholder { color: rgba(255,255,255,0.5); }
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--orange);
}
.contact-form select option { background: var(--blau); color: var(--weiss); }
.contact-form textarea { resize: vertical; min-height: 100px; }

/* ── Notfall-Banner ── */
.notfall-banner {
  background: var(--orange);
  color: var(--weiss);
  padding: 1rem 0;
  text-align: center;
}
.notfall-banner a {
  color: var(--weiss);
  font-family: 'Oswald', sans-serif;
  font-size: 1.15rem;
  font-weight: 600;
  text-decoration: none;
  letter-spacing: 0.02em;
}
.notfall-banner a:hover { color: rgba(255,255,255,0.85); }

/* ── Services ── */
.services { background: var(--grau-hell); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.75rem;
}

.service-card {
  background: var(--weiss);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--schatten);
  transition: transform var(--transition), box-shadow var(--transition);
  border-top: 4px solid transparent;
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--schatten-lg);
  border-top-color: var(--orange);
}
.service-icon {
  width: 56px;
  height: 56px;
  background: rgba(15,44,99,0.08);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  font-size: 1.6rem;
}
.service-card h3 { margin-bottom: 0.75rem; font-size: 1.2rem; }
.service-card p { color: var(--grau-text); font-size: 0.95rem; }

/* ── Warum Wir ── */
.warum-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.warum-bild {
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
}
.warum-bild img { width: 100%; height: 500px; object-fit: cover; }
.warum-bild-badge {
  position: absolute;
  bottom: 2rem;
  right: 2rem;
  background: var(--orange);
  color: var(--weiss);
  padding: 1.25rem 1.75rem;
  border-radius: var(--radius-lg);
  text-align: center;
  box-shadow: var(--schatten-lg);
}
.warum-bild-badge .zahl {
  font-family: 'Oswald', sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  display: block;
}
.warum-bild-badge .text { font-size: 0.85rem; }

.warum-liste { list-style: none; margin: 2rem 0; }
.warum-liste li {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--grau-mittel);
}
.warum-liste li:last-child { border-bottom: none; }
.warum-check {
  width: 28px;
  height: 28px;
  min-width: 28px;
  background: var(--orange);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--weiss);
  font-size: 0.8rem;
  margin-top: 2px;
}

/* ── Bewertungen ── */
.bewertungen { background: var(--grau-hell); }

.bewertungen-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.75rem;
}
.bewertung-card {
  background: var(--weiss);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--schatten);
  position: relative;
}
.bewertung-card::before {
  content: '"';
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  font-family: 'Oswald', sans-serif;
  font-size: 5rem;
  color: var(--grau-mittel);
  line-height: 1;
}
.sterne { color: #f59e0b; font-size: 1.1rem; margin-bottom: 1rem; }
.bewertung-text { color: var(--text); font-size: 0.95rem; margin-bottom: 1.25rem; }
.bewertung-autor { display: flex; align-items: center; gap: 0.75rem; }
.bewertung-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--blau);
  color: var(--weiss);
  font-family: 'Oswald', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.bewertung-name { font-weight: 600; font-size: 0.9rem; }
.bewertung-datum { color: var(--grau-text); font-size: 0.8rem; }

/* ── Prozess ── */
.prozess-schritte {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  position: relative;
}
.prozess-schritte::before {
  content: '';
  position: absolute;
  top: 30px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(to right, var(--orange), var(--blau));
}
.prozess-schritt { text-align: center; position: relative; z-index: 1; }
.prozess-num {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--blau);
  color: var(--weiss);
  font-family: 'Oswald', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
  border: 3px solid var(--weiss);
  box-shadow: var(--schatten);
}
.prozess-schritt:nth-child(even) .prozess-num { background: var(--orange); }
.prozess-schritt h3 { margin-bottom: 0.5rem; font-size: 1.05rem; }
.prozess-schritt p { color: var(--grau-text); font-size: 0.9rem; }

/* ── FAQ ── */
.faq { background: var(--grau-hell); }
.faq-liste { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--weiss);
  border-radius: var(--radius);
  margin-bottom: 1rem;
  box-shadow: var(--schatten);
  overflow: hidden;
}
.faq-frage {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
  font-family: 'Barlow', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: var(--blau);
  text-align: left;
  transition: background var(--transition);
}
.faq-frage:hover { background: var(--grau-hell); }
.faq-chevron {
  width: 24px;
  height: 24px;
  min-width: 24px;
  border-radius: 50%;
  background: var(--orange);
  color: var(--weiss);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  transition: transform var(--transition);
}
.faq-item.aktiv .faq-chevron { transform: rotate(180deg); }
.faq-antwort {
  padding: 0 1.5rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}
.faq-item.aktiv .faq-antwort {
  max-height: 300px;
  padding: 0 1.5rem 1.25rem;
}
.faq-antwort p { color: var(--grau-text); font-size: 0.95rem; }

/* ── Kontakt CTA ── */
.kontakt-cta {
  background: linear-gradient(135deg, var(--blau) 0%, var(--blau-hell) 100%);
  color: var(--weiss);
  text-align: center;
  padding: 100px 0;
}
.kontakt-cta h2 { color: var(--weiss); margin-bottom: 1rem; }
.kontakt-cta p { color: rgba(255,255,255,0.8); font-size: 1.1rem; margin-bottom: 2.5rem; }
.kontakt-tel {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--orange);
  color: var(--weiss);
  font-family: 'Oswald', sans-serif;
  font-size: 1.8rem;
  font-weight: 600;
  padding: 1.25rem 2.5rem;
  border-radius: 50px;
  box-shadow: 0 6px 30px rgba(255,102,0,0.5);
  text-decoration: none;
  transition: all var(--transition);
  letter-spacing: 0.02em;
}
.kontakt-tel:hover {
  color: var(--weiss);
  transform: scale(1.04);
  box-shadow: 0 10px 40px rgba(255,102,0,0.6);
}

/* ── Animations ── */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.sichtbar {
  opacity: 1;
  transform: translateY(0);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 3rem; }
  .warum-grid { grid-template-columns: 1fr; }
  .prozess-schritte { grid-template-columns: repeat(2, 1fr); }
  .prozess-schritte::before { display: none; }
}

@media (max-width: 768px) {
  section { padding: 60px 0; }
  .services-grid { grid-template-columns: 1fr; }
  .bewertungen-grid { grid-template-columns: 1fr; }
  .prozess-schritte { grid-template-columns: 1fr; }
  .hero-cta { flex-direction: column; }
  .hero-stats { gap: 1.25rem; }
}