* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
body {
    text-align: center;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: linear-gradient(135deg, #9ec1f5 0%, #4583e7 100%);
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #333333;
    padding: 20px;

}

/* Container */
.generator-container {
    background: #ffffff;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    width: 100%;
    max-width: 500px;
    text-align: center;
}

/* Typography */
header h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.subtitle {
    font-size: 0.95rem;
    color: #666666;
    margin-bottom: 32px;
}

/* Form Inputs */
.input-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 32px;
}

.input-group label {
    font-size: 0.9rem;
    font-weight: 600;
    color: #4a4a4a;
    text-align: left;
}

input[type="text"] {
    width: 100%;
    padding: 14px 16px;
    font-size: 1rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    outline: none;
    transition: border-color 0.2s ease;
}

input[type="text"]:focus {
    border-color: #4a90e2;
}

button {
    background-color: #1a1a1a;
    color: #ffffff;
    border: none;
    padding: 14px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease;
}

button:hover {
    background-color: #333333;
}

button:active {
    transform: scale(0.98);
}

/* Haiku Output Card */
.haiku-card {
    background-color: #f9f9fb;
    border-left: 4px solid #1a1a1a;
    padding: 24px;
    border-radius: 0 8px 8px 0;
    margin-top: 20px;
    animation: fadeIn 0.4s ease forwards;
}

.haiku-poem {
    font-family: "Georgia", Georgia, serif;
    font-style: italic;
    font-size: 1.25rem;
    line-height: 1.8;
    color: #2c3e50;
    margin-bottom: 16px;
}

.haiku-topic {
    display: inline-block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #9b9b9b;
    font-weight: bold;
}

/* Helper Class for JS handling */
.invisible {
    display: none;
}

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