:root {
    --bg-main: #0d1117;
    --card-bg: #161b22;
    --border: #30363d;
    --accent: #58a6ff;
    --radius: .75rem;
    --font: "Inter", system-ui, sans-serif;
}

body {
    background: var(--bg-main);
    font-family: var(--font);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.gradient {
    background: linear-gradient(135deg, #58a6ff, #c084fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.card-module {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 8px 20px rgba(0, 0, 0, .25);
    transition: transform .2s;
}

.card-module:hover {
    transform: translateY(-3px);
}

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--border);
    font-weight: 600;
}

.form-control {
    background: var(--bg-main);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.form-control:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 .2rem rgba(88, 166, 255, .25);
}

#preview {
    white-space: pre-wrap;
    word-break: break-word;
    font-size: .875rem;
    line-height: 1.6;
}