body {
    font-family: 'Poppins', sans-serif;
    background-color: #f0f2f5;
    color: #333;
    margin: 0;
    padding: 20px;
    background-image: url('data:image/svg+xml,%3Csvg width="100" height="100" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg"%3E%3Cfilter id="noise"%3E%3CfeTurbulence type="fractalNoise" baseFrequency="0.8" numOctaves="4" stitchTiles="stitch"/%3E%3C/filter%3E%3Crect width="100%" height="100%" filter="url(%23noise)" opacity="0.02"/%3E%3C/svg%3E');
}

.container {
    max-width: 800px;
    margin: 40px auto;
    background-color: #fff;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05), 0 10px 30px rgba(0,0,0,0.1), 0 20px 50px rgba(0,0,0,0.1);
}

header {
    text-align: center;
    margin-bottom: 40px;
}

header h1 {
    font-size: 3em;
    font-weight: 700;
    color: #222;
    margin: 0;
}

header p {
    font-size: 1.3em;
    color: #666;
}

.date-picker {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: flex-end;
    gap: 20px;
    margin-bottom: 40px;
}

.date-input, .text-input {
    display: flex;
    flex-direction: column;
}

.date-input label, .text-input label {
    font-size: 0.9em;
    color: #555;
    margin-bottom: 8px;
    font-weight: 500;
}

.date-input input, .text-input input {
    padding: 12px 15px;
    border: 1px solid #ccc;
    border-radius: 10px;
    font-size: 1em;
    background-color: #f8f9fa;
    transition: all 0.3s ease;
}

.date-input input:focus, .text-input input:focus {
    outline: none;
    border-color: #007bff;
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.2);
}

#generate-btn {
    padding: 14px 30px;
    background: linear-gradient(45deg, #007bff, #0056b3);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.3);
}

#generate-btn:hover, #generate-btn:focus {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 123, 255, 0.4);
}


itinerary-display {
    display: block;
    margin-top: 30px;
}

@media (max-width: 768px) {
    .date-picker {
        flex-direction: column;
        align-items: stretch;
    }
}