:root {
    --slate-50: #f8fafc;
    --slate-100: #f1f5f9;
    --slate-200: #e2e8f0;
    --slate-300: #cbd5e1;
    --slate-400: #94a3b8;
    --slate-500: #64748b;
    --slate-600: #475569;
    --slate-700: #334155;
    --slate-800: #1e293b;
    --slate-900: #0f172a;
    --blue-50: #eff6ff;
    --blue-100: #dbeafe;
    --blue-200: #bfdbfe;
    --blue-300: #93c5fd;
    --blue-400: #60a5fa;
    --blue-500: #3b82f6;
    --blue-600: #2563eb;
    --blue-700: #1d4ed8;
    --blue-800: #1e40af;
    --blue-900: #1e3a8a;
}

body {
    margin: 0;
    padding: 1rem;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    color: var(--slate-800);
}

.container {
    max-width: 1024px;
    margin: auto;
}

h1 {
    font-weight: normal;
    margin: 0;
}

header {
    background-color: var(--slate-200);
}

header, .panel {
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: 1rem;
}

.panel {
    border: 1px solid var(--slate-200);
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
}

input, textarea, button {
    display: block;
    box-sizing: border-box;
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--slate-400);
    border-radius: 0.25rem;
    font-family: inherit;
    font-size: 1rem;
    color: inherit;
}

button {
    background-color: var(--blue-500);
    border: 1px solid var(--blue-500);
    color: white;
}