body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f0f2f5;
    color: #333;
    max-width: 900px;
    margin: 0 auto;
}

h1 {
    text-align: center;
    color: #1a73e8;
}

.controls {
    text-align: center;
    margin-bottom: 30px;
    position: sticky;
    top: 0px;
    z-index: 100;
    background-color: white;
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
}

button {
    padding: 12px 24px;
    font-size: 16px;
    cursor: pointer;
    background-color: #1a73e8;
    color: white;
    border: none;
    border-radius: 10px;
    margin: 5px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.1s;
}

button:hover {
    transform: scale(1.05);
}

button:active {
    transform: scale(0.95);
}

button#btn-reset {
    background-color: #ea4335;
}

.step-card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 25px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    border-left: 6px solid #1a73e8;
    margin: 20px;
}

.step-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.step-title {
    font-weight: bold;
    font-size: 1.2em;
    color: #1557b0;
}

.step-desc {
    font-size: 0.95em;
    color: #5f6368;
    margin-bottom: 15px;
    line-height: 1.5;
}

.output-box {
    background: #2d3436;
    color: #00c900;
    padding: 10px;
    font-family: 'Courier New', monospace;
    border-radius: 6px;
    min-height: 20px;
    white-space: pre-wrap;
    overflow-x: auto;
    position: relative;
}

.output-box.loading::after {
    content: "⏳ Attesa server...";
    position: absolute;
    top: 5px;
    right: 5px;
    font-size: 0.8em;
    color: #e5c07b;
}

.output-box.error {
    border: 2px solid #e06c75;
    color: #e06c75;
}

.output-box.success {
    border-left: 4px solid #98c379;
}

.label {
    font-size: 0.8em;
    color: #bbbbbb;
    margin-bottom: 5px;
    display: block;
    font-weight: bold;
    letter-spacing: 0.5px;
}