* {
    box-sizing: border-box;
}

html {
    min-height: 100%;
}

body {
    min-height: 100%;
    margin: 0;
    background: var(--color-surface);
    color: var(--color-text);
}

.page-header {
    margin-bottom: 1rem;
}

.page-header h1 {
    margin: 0.25rem 0 0.45rem;
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
}

.page-header p {
    max-width: 44rem;
    color: var(--color-text-muted);
}

.placeholder-panel {
    max-width: 48rem;
    padding: 1.25rem;
    border: 1px solid var(--color-border);
    border-radius: 0.65rem;
    background: white;
    box-shadow: var(--shadow-soft);
}

.placeholder-panel h2 {
    margin: 0 0 0.65rem;
    font-size: 1.25rem;
}