/* =====================================================
   EDV & Elektroinstallationen Andreas Haas e.U.
   style.css — Modern dark blue electrical theme
   ===================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* CSS Variables */
:root {
  --bg-dark: #0a1628;
  --bg-card: #0f1e38;
  --bg-card-hover: #142244;
  --accent: #1e90ff;
  --accent-glow: rgba(30, 144, 255, 0.3);
  --accent-bright: #4facfe;
  --white: #ffffff;
  --text-muted: #8aa3c4;
  --text-secondary: #b8cce0;
  --border: rgba(30, 144, 255, 0.15);
  --border-bright: rgba(30, 144, 255, 0.4);
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 40px rgba(30, 144, 255, 0.15);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-dark);
  color: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

/* =====================================================
   NAVIGATION
   ===================================================== */
nav {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(10, 22, 40, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.nav-logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--accent), var(--accent-bright));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  box-shadow: 0 0 16px var(--accent-glow);
}

.nav-logo-text {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.01em;
}

.nav-logo-sub {
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--text-muted);
  display: block;
  line-height: 1;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.5rem 0.875rem;
  border-radius: 6px;
  transition: color 0.2s, background 0.2s;
}

.nav-links a:hover {
  color: var(--white);
  background: rgba(30, 144, 255, 0.1);
}

.nav-cta {
  background: var(--accent) !important;
  color: var(--white) !important;
  padding: 0.5rem 1.25rem !important;
  border-radius: 6px !important;
  font-weight: 600 !important;
  transition: background 0.2s, box-shadow 0.2s !important;
}

.nav-cta:hover {
  background: var(--accent-bright) !important;
  box-shadow: 0 0 20px var(--accent-glow) !important;
}

/* =====================================================
   HERO SECTION
   ===================================================== */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  display: block;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    rgba(10, 22, 40, 0.92) 0%,
    rgba(10, 22, 40, 0.75) 50%,
    rgba(10, 22, 40, 0.3) 100%
  );
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 8rem 2rem 4rem;
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(30, 144, 255, 0.15);
  border: 1px solid var(--border-bright);
  border-radius: 100px;
  padding: 0.4rem 1rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-bright);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  animation: fadeUp 0.6s ease both;
}

.hero-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
  max-width: 700px;
  animation: fadeUp 0.6s 0.1s ease both;
}

.hero-title .accent {
  color: var(--accent);
  position: relative;
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-secondary);
  max-width: 520px;
  line-height: 1.7;
  margin-bottom: 2.5rem;
  font-weight: 400;
  animation: fadeUp 0.6s 0.2s ease both;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  animation: fadeUp 0.6s 0.3s ease both;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-bright));
  color: var(--white);
  padding: 0.875rem 2rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 20px rgba(30, 144, 255, 0.4);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(30, 144, 255, 0.5);
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  padding: 0.875rem 2rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid var(--border-bright);
  transition: background 0.2s, border-color 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-secondary:hover {
  background: rgba(30, 144, 255, 0.1);
  border-color: var(--accent);
}

.hero-stats {
  display: flex;
  gap: 3rem;
  margin-top: 4rem;
  animation: fadeUp 0.6s 0.4s ease both;
}

.stat-item {
  text-align: left;
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.03em;
  line-height: 1;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

/* =====================================================
   SECTION BASE
   ===================================================== */
section {
  padding: 6rem 2rem;
}

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

.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 1.25rem;
}

.section-lead {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.7;
}

.divider {
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-bright));
  border-radius: 2px;
  margin: 1.5rem 0;
}

/* =====================================================
   LEISTUNGEN
   ===================================================== */
#leistungen {
  background: var(--bg-dark);
  position: relative;
}

#leistungen::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.leistungen-header {
  text-align: center;
  margin-bottom: 4rem;
}

.leistungen-header .section-lead {
  margin: 0 auto;
}

.leistungen-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.leistung-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.5rem;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
  position: relative;
  overflow: hidden;
}

.leistung-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-bright));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s;
}

.leistung-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-bright);
  box-shadow: var(--shadow-glow);
}

.leistung-card:hover::before {
  transform: scaleX(1);
}

.card-icon {
  width: 56px;
  height: 56px;
  background: rgba(30, 144, 255, 0.12);
  border: 1px solid var(--border-bright);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
}

.card-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.card-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.card-list {
  list-style: none;
  space-y: 0.5rem;
}

.card-list li {
  font-size: 0.875rem;
  color: var(--text-muted);
  padding: 0.3rem 0;
  padding-left: 1.25rem;
  position: relative;
}

.card-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.8rem;
}

/* =====================================================
   ÜBER UNS
   ===================================================== */
#ueber-uns {
  background: linear-gradient(180deg, var(--bg-dark) 0%, #0b1a30 100%);
  position: relative;
  overflow: hidden;
}

#ueber-uns::after {
  content: '';
  position: absolute;
  right: -200px;
  top: 50%;
  transform: translateY(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(30, 144, 255, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.ueber-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: center;
}

.ueber-content .section-lead {
  margin-bottom: 2rem;
}

.ueber-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 2rem;
}

.feature-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem;
}

.feature-icon {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.feature-title {
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.feature-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.ueber-visual {
  position: relative;
}

.ueber-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2.5rem;
  position: relative;
  z-index: 1;
}

.ueber-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: 20px;
  background: linear-gradient(135deg, var(--border-bright), transparent, var(--border-bright));
  z-index: -1;
  opacity: 0.5;
}

.profile-section {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.profile-avatar {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--accent), var(--accent-bright));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  flex-shrink: 0;
}

.profile-name {
  font-size: 1.1rem;
  font-weight: 700;
}

.profile-title {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.timeline {
  list-style: none;
}

.timeline-item {
  display: flex;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
}

.timeline-item:last-child {
  border-bottom: none;
}

.timeline-year {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  width: 48px;
  flex-shrink: 0;
  padding-top: 0.1rem;
}

.timeline-text {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* =====================================================
   KONTAKT
   ===================================================== */
#kontakt {
  background: var(--bg-dark);
  position: relative;
}

#kontakt::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.kontakt-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.kontakt-info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 2rem;
}

.kontakt-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.kontakt-item-icon {
  width: 44px;
  height: 44px;
  background: rgba(30, 144, 255, 0.12);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.kontakt-item-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 0.25rem;
}

.kontakt-item-value {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.kontakt-item-value a {
  color: var(--accent);
  text-decoration: none;
}

.kontakt-item-value a:hover {
  text-decoration: underline;
}

.kontakt-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2.5rem;
}

.form-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.form-sub {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.form-input,
.form-textarea {
  width: 100%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  color: var(--white);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  transition: border-color 0.2s, background 0.2s;
  outline: none;
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--accent);
  background: rgba(30, 144, 255, 0.05);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: rgba(255, 255, 255, 0.25);
}

.form-submit {
  width: 100%;
  background: linear-gradient(135deg, var(--accent), var(--accent-bright));
  color: var(--white);
  border: none;
  padding: 0.875rem;
  border-radius: 8px;
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 20px rgba(30, 144, 255, 0.3);
}

.form-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(30, 144, 255, 0.45);
}

/* =====================================================
   IMPRESSUM
   ===================================================== */
#impressum {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
}

#impressum h2 {
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}

#impressum .section-lead {
  margin-bottom: 2.5rem;
}

.impressum-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.impressum-block {
  background: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
}

.impressum-block-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 1rem;
}

.impressum-block p,
.impressum-block a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.impressum-block a {
  color: var(--accent);
  text-decoration: none;
}

.impressum-block a:hover {
  text-decoration: underline;
}

/* =====================================================
   DATENSCHUTZ
   ===================================================== */
#datenschutz {
  background: var(--bg-dark);
  border-top: 1px solid var(--border);
}

#datenschutz h2 {
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.datenschutz-content {
  max-width: 800px;
}

.datenschutz-content h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--accent-bright);
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.datenschutz-content p,
.datenschutz-content ul {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 0.75rem;
}

.datenschutz-content ul {
  padding-left: 1.5rem;
}

.datenschutz-content li {
  margin-bottom: 0.35rem;
}

/* =====================================================
   FOOTER
   ===================================================== */
footer {
  background: #060e1a;
  border-top: 1px solid var(--border);
  padding: 2.5rem 2rem;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.footer-links a {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--accent);
}

/* =====================================================
   SCROLL ANIMATIONS
   ===================================================== */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* =====================================================
   RESPONSIVE
   ===================================================== */
@media (max-width: 900px) {
  .ueber-grid,
  .kontakt-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .ueber-features {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  nav .nav-links { display: none; }

  .hero-stats {
    gap: 1.5rem;
    flex-wrap: wrap;
  }

  .ueber-features {
    grid-template-columns: 1fr;
  }

  section {
    padding: 4rem 1.25rem;
  }
}