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

html { font-size: 17px; }

body {
    margin: 0;
    padding: 0;
    background: var(--page);
    color: var(--ink);
    font-family: var(--font);
    font-size: var(--text-body);
    line-height: 1.45;
    -webkit-font-smoothing: antialiased;
}

::selection { background: color-mix(in srgb, var(--marker) 45%, transparent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }

h1 { margin: 8px 0 18px; font-size: var(--text-headline); font-weight: 700; letter-spacing: -0.02em; line-height: 1.15; }
h1:focus { outline: none; }
h2 { font-size: var(--text-title); font-weight: 700; letter-spacing: -0.015em; }
a { color: var(--accent); }

:root { --chrome-top: 64px; }

.module-nav {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 12px max(16px, calc((100% - 1600px) / 2 + 40px));
    background: var(--masthead);
}

main {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 26rem), 1fr));
    align-items: start;
    gap: 20px 24px;
    max-width: 1600px;
    margin: 0 auto;
    padding: 32px 40px 64px;
}

main > :is(h1, h2, p, .notice, .aside, nav, form, table, .media-library, .link-code, .ui-actions) { grid-column: 1 / -1; }
main > h1 { margin: 0; }
main > p { margin: -8px 0 0; max-width: 72ch; color: var(--ink-2); }
main > .account-panel { margin: 0; }

main:has(> .workbench), main:has(> .preview-window) { display: block; max-width: none; padding: 0; }

@media (max-width: 760px) {
    main { padding: 20px 16px 48px; }
    .module-nav { padding: 12px 16px; }
}

.module-nav a {
    display: inline-flex;
    align-items: center;
    min-height: 40px;
    padding: 0 14px;
    border-radius: var(--radius-full);
    color: var(--on-masthead-2);
    font-size: var(--text-label);
    font-weight: 600;
    text-decoration: none;
}

.module-nav a:hover { color: var(--on-masthead); }
.module-nav a.active { background: var(--masthead-chip); color: var(--on-masthead); }

button:not([class]),
a.button {
    min-height: 40px;
    padding: 0 16px;
    border: 0;
    border-radius: var(--radius-full);
    background: var(--primary);
    color: var(--on-primary);
    font: inherit;
    font-size: var(--text-label);
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    text-decoration: none;
}

button.link {
    min-height: auto;
    padding: 4px 8px;
    border: 0;
    background: none;
    color: var(--accent);
    font: inherit;
    font-weight: 600;
    cursor: pointer;
}

button:disabled { opacity: 0.5; cursor: default; }

.account-panel {
    margin-bottom: 16px;
    padding: 16px 20px;
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--lift);
}

label:not([class]) { display: block; margin: 8px 0; }

input:is(:not([class]), .valid, .invalid, .modified):not([type="checkbox"], [type="radio"], [type="file"]), select:is(:not([class]), .valid, .invalid, .modified), textarea:is(:not([class]), .valid, .invalid, .modified) {
    display: block;
    width: min(100%, 360px);
    margin-top: 4px;
    padding: 10px 12px;
    border: 0;
    border-radius: var(--radius-field);
    background: var(--sand);
    color: var(--ink);
    font: inherit;
}

input:is(:not([class]), .valid, .invalid, .modified):focus, select:is(:not([class]), .valid, .invalid, .modified):focus, textarea:is(:not([class]), .valid, .invalid, .modified):focus { outline: none; box-shadow: inset 0 0 0 2px var(--accent); }
input[type="checkbox"]:not([class]), input[type="radio"]:not([class]) { display: inline; width: auto; accent-color: var(--live); }

.message { color: var(--marker-ink); }
.aside { display: block; color: var(--ink-2); }
.warning { color: var(--marker-ink); }

label.choice { display: flex; flex-wrap: wrap; gap: 8px; align-items: baseline; }
label.choice input { display: inline; width: auto; margin: 0; }

.role-card { display: grid; gap: 4px; color: inherit; text-decoration: none; }

.facts { display: grid; grid-template-columns: max-content 1fr; gap: 4px 16px; }
.facts dd { margin: 0; }

.media-library { display: grid; gap: 12px; padding: 0; list-style: none; }
.media-library li { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; }
.media-thumbnail { width: 96px; height: 72px; object-fit: cover; border-radius: 8px; background: var(--sand-strong); }

.section { padding: 0; }
.link-code { margin: 18px 0 6px; font-size: var(--text-display); font-weight: 700; letter-spacing: 0.12em; font-variant-numeric: tabular-nums; }