body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    padding: 20px;
    flex-direction: column;
}

.container {
    background: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    max-width: 450px;
    width: 100%;
    text-align: center;
}

h2 {
    color: #343a40;
    margin-bottom: 15px;
}

textarea, input {
    width: calc(100% - 20px);
    padding: 12px;
    margin: 10px 0;
    border-radius: 8px;
    border: 1px solid #ccc;
    font-size: 16px;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
}

.buttons {
    display: flex;
    gap: 10px;
    justify-content: space-between;
    margin: 10px 0;
}

button {
    flex: 1;
    padding: 12px;
    background-color: #28a745;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.3s ease, transform 0.2s;
    font-size: 14px;
}

button:hover {
    background-color: #218838;
    transform: scale(1.05);
}

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

#fileInput {
    display: none;
}

/* Copyright yozuvi */
.footer {
    margin-top: 15px;
    font-size: 14px;
    color: #6c757d;
    text-align: center;
}