:root {
  --primary-color: #113f67;
  --secondary-color: #38598b;
  --lane-background-color: #747dbc;
  --white-color: #ffffff;
}

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

body {
  background-image: url('background.jpg');
  background-size: cover;
  background-position: center;
  font-family: 'Roboto', sans-serif;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.container {
  width: 90%;
  max-width: 1200px;
  padding: 20px;
  background-color: rgba(255, 255, 255, 0.8);
  border-radius: 8px;
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
}

form {
  margin: 20px auto;
  background-color: var(--primary-color);
  width: 100%; 
  max-width: 500px; 
  padding: 15px;
  border-radius: 8px;
  display: flex;
  flex-wrap: wrap;
}

form input {
  flex: 1;
  padding: 12px;
  border-radius: 4px;
  border: none;
  margin-right: 10px;
  font-size: 16px;
}

form button {
  padding: 12px 20px;
  border-radius: 4px;
  border: none;
  font-size: 18px;
  cursor: pointer;
}

form button.add {
  background-color: var(--secondary-color);
  color: var(--white-color);
}

form button.add:hover {
  background-color: var(--lane-background-color);
  color: var(--white-color);
}


form button.delete-all {
  background-color: #8b3859; 
  color: var(--white-color);
  margin-left: 10px;
}

form button.delete-all:hover {
  background-color: #cd5c67;
}

.task-lanes {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  flex-wrap: wrap;
}

.lane {
  background-color: var(--lane-background-color);
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  flex: 1 1 300px;
  display: flex;
  flex-direction: column;
}

.lane h3 {
  font-size: 20px;
  font-weight: bold;
  margin-bottom: 10px;
}

.task-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.task {
  background-color: var(--white-color);
  padding: 12px;
  border-radius: 4px;
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
  cursor: move;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.task .delete-btn {
  background-color: #8b3859;
  color: var(--white-color);
  border: none;
  padding: 6px 12px;
  border-radius: 4px;
  cursor: pointer;
  transition: 0.3s;
}

.task .delete-btn:hover {
  background-color: #cd5c67;
}