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

/* Body styling */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #f7f9fc, #e3f2fd);
    color: #333;
    padding: 40px;
    line-height: 1.6;
    animation: fadeInBody 1.5s ease forwards;
}

/* Title */
h1 {
    font-size: 2.5em;
    margin-bottom: 20px;
    color: #2c3e50;
    text-align: center;
}

/* Textarea */
textarea {
    width: 100%;
    height: 120px;
    padding: 12px;
    font-size: 16px;
    border: 1px solid #ccc;
    border-radius: 6px;
    resize: vertical;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    transition: box-shadow 0.3s;
}

textarea:focus {
    box-shadow: 0 6px 15px rgba(0,0,0,0.2);
    outline: none;
}

/* Button */
button {
    margin-top: 15px;
    padding: 12px 24px;
    font-size: 16px;
    background: linear-gradient(135deg, #2c89e8, #1a73e8);
    color: #fff;
    border: none;
    border-radius: 30px;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
}

button:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 20px rgba(44, 137, 232, 0.4);
}

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

/* Output styling */
h3 {
    margin-top: 25px;
    font-size: 18px;
    color: #2d3436;
}

#sentiment,
#scores {
    font-weight: bold;
    color: #0984e3;
    display: inline-block;
    transition: all 0.4s ease;
}

#sentiment.highlight,
#scores.highlight {
    animation: highlightAnim 0.8s ease;
}

/* Animations */
@keyframes fadeInBody {
    from { opacity: 0; }
    to { opacity: 1; }
}

.fade-in {
    animation: fadeIn 1s ease forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

.slide-in {
    animation: slideIn 1.2s ease forwards;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(-50px); }
    to { opacity: 1; transform: translateX(0); }
}

.pulse-button {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(44, 137, 232, 0.5); }
    70% { box-shadow: 0 0 0 10px rgba(44, 137, 232, 0); }
    100% { box-shadow: 0 0 0 0 rgba(44, 137, 232, 0); }
}

@keyframes highlightAnim {
    0% { background-color: #dff9fb; }
    100% { background-color: transparent; }
}