/* Farbvariablen */
:root {
  --primary: #e60000;       /* Rot aus Logo */
  --secondary: #001f5b;     /* Dunkelblau aus Logo */
  --background: #f4f4f4;
  --text: #222;
  --white: #fff;
}

/* Grundlayout */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', sans-serif;
  background: var(--background);
  color: var(--text);
  line-height: 1.6;
}

/* HEADER */
header {
  background: var(--white); /* heller Header für farbiges Logo */
  color: var(--text);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid #ddd;
  padding: 1rem 0;
}

.nav-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

/* TYPOGRAFISCHES LOGO */
.text-logo {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

/* Et | H Animation */
.top-line {
  font-size: 2.5rem;
  font-weight: bold;
  color: var(--secondary);
  display: flex;
  align-items: center;
  gap: 0.3rem;

  opacity: 0;
  animation: slideFadeInTop 0.8s ease-out forwards;
  animation-delay: 0.2s;
}

.bar {
  color: var(--primary);
  font-weight: normal;
}

.contact-button {
  display: inline-block;
  background-color: #25D366; /* WhatsApp-Grün */
  color: white;
  padding: 10px 15px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  margin: 5px;
}

/* Elektrotechnik Hochauf Animation */
.bottom-line {
  font-size: 1.2rem;
  font-weight: bold;
  margin-top: 0.3rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;

  opacity: 0;
  animation: slideFadeInBottom 0.8s ease-out forwards;
  animation-delay: 0.6s;
}

.elektrotechnik, .hochauf {
  display: inline;
  font-weight: bold;
  color: var(--primary); /* Standard: rot */
}

.elektrotechnik .blue,
.hochauf .blue {
  color: var(--secondary); /* einzelne Buchstaben in blau */
}

/* NAVIGATION */
nav {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.menu-toggle {
  display: none;
  font-size: 2rem;
  color: var(--secondary);
  cursor: pointer;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 2rem;
}

nav a {
  color: var(--secondary);
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s ease;
}

nav a:hover {
  color: var(--primary);
}

/* SECTIONS */
.section {
  padding: 4rem 1rem;
  max-width: 1000px;
  margin: 0 auto;
}

.section:nth-child(even) {
  background: #ffffff;
  border-radius: 8px;
}

h2 {
  color: var(--secondary);
  margin-bottom: 1rem;
  font-size: 2rem;
}

ul li {
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

/* BUTTONS */
.btn {
  display: inline-block;
  margin-top: 1rem;
  background: var(--primary);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 5px;
  text-decoration: none;
  transition: background 0.3s ease;
  font-weight: bold;
}

.btn:hover {
  background: #b30000;
}

/* FOOTER */
footer {
  background: var(--secondary);
  color: white;
  text-align: center;
  padding: 1rem 0;
}

/* ANIMATION */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideFadeInTop {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideFadeInBottom {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* RESPONSIVE DESIGN */
@media (max-width: 768px) {
  .nav-container {
    flex-direction: column;
    align-items: flex-start;
  }

  .menu-toggle {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--secondary);
  }

  nav ul {
    flex-direction: column;
    width: 100%;
    display: none;
    margin-top: 0.5rem;
    background: var(--white);
    border-top: 1px solid #ddd;
  }

  nav ul li {
    width: 100%;
    text-align: left;
    border-top: 1px solid #eee;
  }

  nav ul li a {
    display: block;
    padding: 1rem;
  }

  nav ul.show {
    display: flex;
  }

  .top-line {
    font-size: 2rem;
  }

  .bottom-line {
    font-size: 1rem;
  }

  .btn {
    font-size: 1rem;
    padding: 0.5rem 1rem;
  }
}