/* Basis-Stile für Seminar-Seiten */

/* Grundlegende Resets und Variablen */
:root {
  --primary-color: #1a2a6c;
  --secondary-color: #4776e6;
  --accent-color: #8e54e9;
  --background-color: #0a1128;
  --text-color: #ffffff;
  --light-text: #ffffff;
  --card-bg: rgba(255, 255, 255, 0.1);
  --card-hover-bg: rgba(255, 255, 255, 0.15);
  --border-radius: 12px;
  --box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  --transition: all 0.3s ease;
}

@keyframes gradientBG {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

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

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--background-color);
  padding: 0;
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

.background-animation {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #0a1128 0%, #1a2a6c 50%, #0a1128 100%);
  background-size: 400% 400%;
  z-index: -1;
  animation: gradientBG 150s ease infinite;
}

/* Container */
.container {
  max-width: 1800px;
  width: 100%;
  margin: 0 auto;
  padding: 20px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
header {
  display: flex;
  align-items: center;
  padding: 1.5rem 2rem;
  background-color: rgba(26, 42, 108, 0.5);
  backdrop-filter: blur(10px);
  border-radius: var(--border-radius);
  margin-bottom: 2rem;
  box-shadow: var(--box-shadow);
}

.logo-container {
  margin-right: 2rem;
}

.logo {
  height: 80px;
  width: auto;
}

.header-text {
  flex: 1;
}

.header-text h1 {
  font-size: 3rem;
  margin-bottom: 0.5rem;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

/* Main Content */
main {
  flex: 1;
  padding: 0;
}

section {
  margin-bottom: 2rem;
}

h2 {
  font-size: 1.8rem;
  margin-bottom: 1.2rem;
  color: var(--light-text);
  text-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

/* Karten-Stile */
.card {
  background-color: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 1.8rem;
  margin-bottom: 1.8rem;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
  backdrop-filter: blur(10px);
}

.card:hover {
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
  transform: translateY(-5px);
  background-color: var(--card-hover-bg);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.8rem 1.5rem;
  background-color: var(--secondary-color);
  color: var(--light-text);
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  font-weight: 500;
  font-size: 1.1rem;
}

.btn:hover {
  background-color: #3a67d7;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.btn-primary {
  background-color: var(--primary-color);
}

.btn-primary:hover {
  background-color: #243785;
}

.btn-accent {
  background-color: var(--accent-color);
}

.btn-accent:hover {
  background-color: #7a45d0;
}

/* Formulare */
input,
select,
textarea {
  width: 100%;
  padding: 1rem;
  margin-bottom: 1.2rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--border-radius);
  font-family: inherit;
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--light-text);
  font-size: 1.1rem;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--secondary-color);
  box-shadow: 0 0 0 3px rgba(71, 118, 230, 0.3);
}

/* Tabellen */
table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.8rem;
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: var(--border-radius);
  overflow: hidden;
}

th,
td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

th {
  background-color: rgba(255, 255, 255, 0.1);
  font-weight: 600;
}

tr:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

/* Footer */
footer {
  padding: 1.5rem;
  background-color: rgba(26, 42, 108, 0.5);
  backdrop-filter: blur(10px);
  text-align: center;
  font-size: 1rem;
  border-radius: var(--border-radius);
  margin-top: 2rem;
  box-shadow: var(--box-shadow);
}

/* Responsive Design */
@media (max-width: 1200px) {
  .container {
    padding: 15px;
  }

  .header-text h1 {
    font-size: 2.5rem;
  }

  .logo {
    height: 70px;
  }
}

@media (max-width: 768px) {
  header {
    flex-direction: column;
    text-align: center;
    padding: 1.2rem;
  }

  .logo-container {
    margin-right: 0;
    margin-bottom: 1rem;
  }

  .logo {
    height: 60px;
  }

  .header-text h1 {
    font-size: 2rem;
  }

  .card {
    padding: 1.2rem;
  }

  h2 {
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 10px;
  }

  header {
    padding: 1rem;
    margin-bottom: 1rem;
  }

  .header-text h1 {
    font-size: 1.8rem;
  }

  .logo {
    height: 50px;
  }

  h2 {
    font-size: 1.3rem;
  }

  .btn {
    padding: 0.6rem 1.2rem;
    font-size: 1rem;
  }
}