:root {
    --pyc-ink: #172033;
    --pyc-blue: #1d4f91;
    --pyc-line: #d9e2ef;
    --pyc-mist: #f5f8fc;
    --pyc-amber: #f59e0b;
    --pyc-white: #fff;
    --pyc-muted: #526179;
    --pyc-success-bg: #dcfce7;
    --pyc-success-ink: #14532d;
    --pyc-brand-border: rgba(255, 255, 255, .25);
    --pyc-shadow: rgba(23, 32, 51, .08);
    --radius: .5rem;
    --space-1: .25rem;
    --space-2: .75rem;
    --space-3: 1rem;
    --space-4: 1.25rem;
    --space-5: 1.5rem;
    --space-6: 2rem;
    --space-banner: .45rem;
    --space-button-y: .65rem;
    --space-button-x: .9rem;
}

/* Base */
*, :before, :after {
    box-sizing: border-box;
}

html {
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--pyc-ink);
    background: var(--pyc-mist);
}

body {
    margin: 0;
    min-height: 100vh;
}

a {
    color: inherit;
}

/* Layout */
.shell {
    display: grid;
    grid-template-columns: 15rem 1fr;
    min-height: 100vh;
}

.sidebar {
    background: var(--pyc-ink);
    color: var(--pyc-white);
    padding: var(--space-4);
}

.sidebar nav {
    display: grid;
    gap: var(--space-2);
}

.sidebar span {
    color: var(--pyc-line);
    font-size: .92rem;
}

.workspace {
    display: grid;
    grid-template-rows: auto 1fr;
    min-width: 0;
}

.topbar {
    align-items: center;
    background: var(--pyc-white);
    border-bottom: 1px solid var(--pyc-line);
    display: flex;
    justify-content: space-between;
    padding: var(--space-3) var(--space-5);
}

.topbar strong {
    font-size: 1.25rem;
}

.content {
    padding: var(--space-5);
}

.guest-body {
    align-items: center;
    background: var(--pyc-mist);
    display: flex;
    justify-content: center;
    padding: var(--space-5);
}

/* Components */
.staging-banner {
    background: var(--pyc-amber);
    color: var(--pyc-ink);
    font-size: .78rem;
    font-weight: 700;
    letter-spacing: .08em;
    padding: var(--space-banner) var(--space-3);
    text-align: center;
    text-transform: uppercase;
}

.brand-mark {
    align-items: center;
    border: 1px solid var(--pyc-brand-border);
    display: flex;
    font-weight: 800;
    height: 3rem;
    justify-content: center;
    margin-bottom: var(--space-6);
    width: 3rem;
}

.logo-placeholder {
    border: 2px dashed var(--pyc-line);
    border-radius: calc(var(--radius) / 2);
    height: 2.5rem;
    width: 5.5rem;
}

.page-section {
    background: var(--pyc-white);
    border: 1px solid var(--pyc-line);
    border-radius: var(--radius);
    max-width: 48rem;
    padding: var(--space-6);
}

.page-section h1, .guest-card h1 {
    font-size: 2rem;
    line-height: 1.15;
    margin: var(--space-1) 0 var(--space-2);
}

.guest-card {
    background: var(--pyc-white);
    border: 1px solid var(--pyc-line);
    border-radius: var(--radius);
    box-shadow: 0 10px 30px var(--pyc-shadow);
    max-width: 28rem;
    padding: var(--space-6);
    width: 100%;
}

.guest-card p {
    color: var(--pyc-muted);
}

.flash {
    border-radius: calc(var(--radius) * .75);
    margin-bottom: var(--space-3);
    padding: var(--space-2) var(--space-3);
}

.flash-success {
    background: var(--pyc-success-bg);
    color: var(--pyc-success-ink);
}

.button-link {
    background: var(--pyc-blue);
    border-radius: calc(var(--radius) * .75);
    color: var(--pyc-white);
    display: inline-block;
    font-weight: 700;
    margin-top: var(--space-2);
    padding: var(--space-button-y) var(--space-button-x);
    text-decoration: none;
}

/* Utilities */
.eyebrow {
    color: var(--pyc-muted);
    font-size: .75rem;
    font-weight: 700;
    letter-spacing: .08em;
    margin: 0 0 var(--space-1);
    text-transform: uppercase;
}

.lede {
    color: var(--pyc-muted);
    font-size: 1.05rem;
    margin: 0;
}

/* Responsive layout */
@media (max-width: 760px) {
    .shell {
        grid-template-columns: 1fr;
    }

    .sidebar {
        display: none;
    }

    .topbar, .content {
        padding: var(--space-3);
    }

    .page-section {
        padding: var(--space-4);
    }

    .page-section h1, .guest-card h1 {
        font-size: 1.6rem;
    }
}