body {
    margin: 0;
    font-family: Arial;
    background: #0f172a;
    color: #e2e8f0;
}

header {
    background: #020617;
    padding: 15px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo img {
    height: 40px;
}

.container {
    max-width: 900px;
    margin: auto;
    padding: 15px;
}

.card {
    background: #1e293b;
    padding: 15px;
    border-radius: 10px;
}

textarea {
    width: 100%;
    height: 180px;
    padding: 10px;
    border-radius: 8px;
    border: none;
}

.buttons {
    display: grid;
    grid-template-columns: repeat(2,1fr);
    gap: 8px;
    margin-top: 10px;
}

button {
    padding: 12px;
    border-radius: 8px;
    border: none;
    font-weight: bold;
    cursor: pointer;
}

.format { background:#22c55e; }
.minify { background:#3b82f6; }
.copy { background:#f59e0b; }
.clear { background:#ef4444; }

pre {
    background:#020617;
    padding:10px;
    margin-top:10px;
    border-radius:8px;
}