:root {
  --primary-color: #e91e63;
  --primary-light: #f48fb1;
  --primary-dark: #c2185b;
  --secondary-color: #f06292;
  --text-color: #333;
  --bg-color: #f9f9f9;
  --card-bg: #fff;
  --border-color: #e0e0e0;
  --success-color: #4caf50;
  --danger-color: #f44336;
  --flow-light: #ffcdd2;
  --flow-medium: #e57373;
  --flow-heavy: #c62828
}

body {
  color: var(--text-color);
  background-color: var(--bg-color);
  font-size: 16px;
  line-height: 1.6;
  margin: 0;
  padding: 0;
}

.container {
  width: 85%;
  /* Optimiert für bessere Mobilansicht */
  max-width: 100%;
  margin: 0 auto;
  padding: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 20px
}

header {
  background-color: var(--primary-color);
  color: #fff;
  padding: 15px 20px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, .1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  box-sizing: border-box;
}

.logo {
  font-size: 24px;
  font-weight: 700
}

nav ul {
  display: flex;
  gap: 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}

nav a {
  color: #fff;
  padding: 5px 10px;
  border-radius: 4px;
  transition: background-color .3s
}

.btn-primary:hover,
nav a.active,
nav a:hover {
  background-color: var(--primary-dark)
}

h1,
h2,
h3 {
  color: var(--primary-dark);
  margin-bottom: 15px;
  width: 100%
}

h1 {
  font-size: 28px
}

h2 {
  font-size: 22px
}

h3 {
  font-size: 18px
}

.login-container {
  max-width: 400px;
  margin: 100px auto;
  padding: 30px;
  background-color: var(--card-bg);
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, .1);
  text-align: center
}

.login-container h1 {
  margin-bottom: 5px;
  color: var(--primary-color)
}

.login-container p {
  margin-bottom: 20px;
  color: #666
}

.btn,
.error {
  border-radius: 4px
}

.error {
  color: var(--danger-color);
  margin-bottom: 15px;
  padding: 10px;
  background-color: rgba(244, 67, 54, .1)
}

.btn {
  padding: 10px 15px;
  border: 0;
  cursor: pointer;
  font-weight: 500;
  transition: background-color .3s
}

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

.calendar-section,
.entry-section {
  background: var(--card-bg);
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, .1)
}

.calendar-section {
  flex: 1;
  min-width: 300px
}

.entry-section {
  width: 300px;
  flex: 0 0 300px
}

#entry-form {
  font-size: smaller
}

/* Verbesserte responsive Anpassungen */
@media (max-width: 992px) {
  .container {
    width: 90%;
  }

  .calendar-section,
  .entry-section {
    padding: 15px;
  }
}

@media (max-width: 768px) {
  .container {
    flex-direction: column;
    width: 95%;
    padding: 15px 10px;
  }

  .calendar-section,
  .entry-section {
    width: 100%;
    flex: none;
    max-width: 100%;
    padding: 15px;
  }

  .logo {
    font-size: 22px;
  }

  h1 {
    font-size: 24px;
  }

  h2 {
    font-size: 20px;
  }

  h3 {
    font-size: 16px;
  }
}

@media (max-width: 480px) {
  .container {
    width: 100%;
    padding: 10px;
  }

  .calendar-section,
  .entry-section {
    padding: 12px 10px;
  }

  header {
    padding: 10px 15px;
  }

  .logo {
    font-size: 20px;
  }

  nav ul {
    gap: 12px;
  }

  #entry-form {
    font-size: 14px;
  }

  .btn {
    padding: 8px 12px;
  }
}

@media (max-width: 360px) {
  nav ul {
    gap: 8px;
  }

  .logo {
    font-size: 18px;
  }

  .calendar-section,
  .entry-section {
    padding: 10px 8px;
  }
}

.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background-color: #333;
  color: white;
  padding: 12px 24px;
  border-radius: 4px;
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.3s ease-in-out;
  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.16);
}

.toast.show {
  opacity: 1;
}

.toast.success {
  background-color: #4CAF50;
}

.toast.error {
  background-color: #F44336;
}