/* ==========================================================================
   Printable cheat sheets (/books/<slug>/cheat-sheet/).
   On screen: dark cards like the rest of the site. On paper: page 1 is the
   sheet, page 2 the reader's habit plan, black on white, nothing else.
   ========================================================================== */

.cs-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.cs-actions .btn, .cs-plan-actions .btn { height: 48px; font-size: 16px; padding: 0 22px; }
.cs-actions .btn svg { width: 18px; height: 18px; }

/* ---------- The sheet ---------- */

.cs-sheet {
    background: var(--surface); border: 1px solid var(--line-strong); border-radius: var(--radius-lg);
    padding: clamp(20px, 3.4vw, 36px); font-size: 16px; line-height: 1.45; color: var(--text);
}
.prose .cs-sheet > * + * { margin-top: 22px; }
.cs-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 6px 20px; }
.prose .cs-head h2 { margin: 0; font-size: clamp(24px, 2.6vw, 30px); }
.prose .cs-head p { margin: 0; font-size: 13px; color: var(--text-3); }

.cs-loop { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; counter-reset: loop; }
.cs-loop div {
    position: relative; padding: 12px 14px; border-radius: 14px;
    background: var(--surface-2); border: 1px solid var(--line);
}
.cs-loop div + div::before {
    content: '→'; position: absolute; left: -10px; top: 50%; transform: translate(-50%, -50%);
    color: var(--text-3); font-size: 14px;
}
.cs-loop b { display: block; font-size: 16px; }
.cs-loop span { display: block; font-size: 13px; color: var(--text-2); line-height: 1.35; margin-top: 2px; }

.cs-table-wrap { border-radius: 16px; }
.cs-laws { width: 100%; min-width: 620px; border-collapse: collapse; font-size: 14.5px; line-height: 1.45; }
.cs-laws th, .cs-laws td { text-align: left; vertical-align: top; padding: 12px 14px; border-bottom: 1px solid var(--line); }
.cs-laws tbody tr:last-child th, .cs-laws tbody tr:last-child td { border-bottom: 0; }
.cs-laws thead th { font-size: 12px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-3); background: var(--surface-2); }
.cs-laws tbody th { width: 15%; font-size: 14px; color: var(--text-2); font-weight: 600; white-space: nowrap; }
.cs-n {
    display: inline-grid; place-items: center; width: 22px; height: 22px; margin-right: 8px; border-radius: 50%;
    background: var(--text); color: #000; font-size: 12px; font-weight: 700;
}
.cs-laws td b { display: block; color: var(--text); font-size: 15px; margin-bottom: 4px; }
.cs-laws td:nth-child(2) b { color: var(--green); }
.cs-laws td:nth-child(3) b { color: var(--pink); }
.prose .cs-laws ul { padding-left: 1.05em; margin: 0; }
.prose .cs-laws li { color: var(--text-2); }
.prose .cs-laws li + li { margin-top: 3px; }

.cs-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.cs-card { padding: 14px; border-radius: 14px; background: var(--surface-2); border: 1px solid var(--line); }
.cs-card b { display: block; font-size: 15px; }
.prose .cs-card p { margin-top: 4px; font-size: 13.5px; line-height: 1.45; color: var(--text-2); }
.cs-card sup { font-size: 0.7em; }

/* ---------- The plan ---------- */

.cs-plan { display: flex; flex-direction: column; gap: 14px; }
.cs-plan fieldset {
    border: 1px solid var(--line-strong); border-radius: var(--radius); padding: 18px 20px 20px; margin: 0;
    background: var(--surface); display: flex; flex-direction: column; gap: 14px;
}
.cs-plan legend { padding: 0 8px; margin-left: -8px; font-size: 13px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--orange); }
.cs-field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.cs-field span { font-size: 14px; font-weight: 600; color: var(--text-2); }
.cs-field input {
    width: 100%; height: 46px; padding: 0 14px; border-radius: 12px;
    border: 1px solid var(--line-strong); background: var(--surface-2); color: var(--text);
    font: inherit; font-size: 16px; color-scheme: dark;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.cs-field input::placeholder { color: var(--text-3); }
.cs-field input:focus { outline: none; border-color: var(--violet); box-shadow: 0 0 0 3px rgba(123, 108, 246, 0.25); }
.prose .cs-group { margin: 6px 0 -6px; font-size: 13px; font-weight: 700; color: var(--text); }
.cs-row { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 12px; }
.cs-row--2 { grid-template-columns: 1fr 1fr; }

.prose .cs-tracker-note { margin: 0; font-size: 14px; color: var(--text-3); }
.cs-tracker { display: grid; grid-template-columns: repeat(10, 1fr); gap: 6px; }
.cs-day { position: relative; display: grid; place-items: center; aspect-ratio: 1; border-radius: 10px; border: 1px solid var(--line-strong); background: var(--surface-2); cursor: pointer; }
.cs-day input { position: absolute; inset: 0; opacity: 0; margin: 0; cursor: pointer; }
.cs-day span { font-size: 12px; font-weight: 600; color: var(--text-3); font-variant-numeric: tabular-nums; }
.cs-day:has(input:checked) { background: var(--green); border-color: transparent; }
.cs-day:has(input:checked) span { color: #000; }
.cs-day:has(input:focus-visible) { outline: 2px solid var(--blue); outline-offset: 2px; }

.cs-plan-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 20px; }

@media (max-width: 760px) {
    .cs-loop { grid-template-columns: 1fr 1fr; }
    .cs-loop div:nth-child(3)::before { display: none; }
    .cs-cards { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
    .cs-sheet { padding: 18px 16px; border-radius: 26px; }
    .cs-row, .cs-row--2 { grid-template-columns: 1fr; }
    .cs-tracker { grid-template-columns: repeat(6, 1fr); }
    .cs-actions .btn, .cs-plan-actions .btn { width: 100%; }
}

/* ---------- Paper ---------- */

@media print {
    @page { margin: 12mm; }
    .page-cheatsheet { background: #fff !important; color: #000 !important; font-size: 10.5pt; }
    .page-cheatsheet .nav, .page-cheatsheet .footer, .page-cheatsheet .dock, .page-cheatsheet .article-head,
    .page-cheatsheet .summary, .page-cheatsheet .cs-actions, .page-cheatsheet .toc, .page-cheatsheet .steps-list,
    .page-cheatsheet .cta-card, .page-cheatsheet .article-faq, .page-cheatsheet .related, .page-cheatsheet .cta-band,
    .page-cheatsheet .prose > h2:not(#plan), .page-cheatsheet .prose > p, .page-cheatsheet .cs-plan-actions,
    .page-cheatsheet .cs-tracker-note { display: none !important; }
    .page-cheatsheet .article, .page-cheatsheet .prose { padding: 0 !important; margin: 0 !important; max-width: none !important; }
    .page-cheatsheet .prose > * + * { margin-top: 0; }

    .page-cheatsheet .cs-sheet, .page-cheatsheet .cs-loop div, .page-cheatsheet .cs-card,
    .page-cheatsheet .cs-plan fieldset, .page-cheatsheet .cs-table-wrap, .page-cheatsheet .cs-laws thead th {
        background: #fff !important; border-color: #bbb !important; color: #000 !important; box-shadow: none !important;
    }
    .page-cheatsheet .cs-sheet { border: 0 !important; padding: 0 !important; break-after: page; }
    .page-cheatsheet .cs-sheet * { color: #000 !important; }
    .page-cheatsheet .cs-head p, .page-cheatsheet .cs-loop span, .page-cheatsheet .cs-card p, .page-cheatsheet .cs-laws li { color: #333 !important; }
    .page-cheatsheet .cs-n { background: #000 !important; color: #fff !important; }
    .page-cheatsheet .cs-laws { min-width: 0; font-size: 9.5pt; }
    .page-cheatsheet .cs-laws th, .page-cheatsheet .cs-laws td { padding: 4pt 6pt; border-color: #ccc !important; }
    .page-cheatsheet .table-wrap { overflow: visible; border: 1px solid #bbb; }
    .page-cheatsheet .cs-loop, .page-cheatsheet .cs-cards { gap: 6pt; grid-template-columns: repeat(4, 1fr); }
    .page-cheatsheet .cs-loop div:nth-child(3)::before { display: block; }
    .page-cheatsheet .cs-sheet > * + * { margin-top: 8pt; }
    .page-cheatsheet .cs-head h2 { font-size: 17pt; }
    .page-cheatsheet .cs-head p { font-size: 8pt; }
    .page-cheatsheet .cs-loop div { padding: 5pt 8pt; border-radius: 6pt; }
    .page-cheatsheet .cs-loop b, .page-cheatsheet .cs-card b, .page-cheatsheet .cs-laws td b { font-size: 10pt; }
    .page-cheatsheet .cs-loop span { font-size: 8pt; }
    .page-cheatsheet .cs-laws { font-size: 8.5pt; line-height: 1.3; }
    .page-cheatsheet .cs-laws li + li { margin-top: 1pt; }
    .page-cheatsheet .cs-card { padding: 6pt 8pt; border-radius: 6pt; }
    .page-cheatsheet .cs-card p { font-size: 8pt; line-height: 1.3; }

    .page-cheatsheet #plan { display: block !important; color: #000; font-size: 18pt; margin: 0 0 10pt !important; }
    .page-cheatsheet .cs-plan { gap: 8pt; }
    .page-cheatsheet .cs-plan legend { color: #000 !important; }
    .page-cheatsheet .cs-field span { color: #333 !important; }
    .page-cheatsheet .cs-field input { height: auto; min-height: 18pt; padding: 2pt 0; font-size: 11pt; border: 0; border-bottom: 1px solid #999; border-radius: 0; background: none; color: #000; }
    .page-cheatsheet .cs-field input::placeholder { color: transparent; }
    .page-cheatsheet .cs-field input:focus { box-shadow: none !important; border-color: #999 !important; }
    .page-cheatsheet .cs-group { display: block !important; color: #000 !important; font-size: 9pt; margin: 2pt 0 -4pt; }
    .page-cheatsheet .cs-plan fieldset { padding: 8pt 12pt 10pt; gap: 6pt; border-radius: 8pt; }
    .page-cheatsheet .cs-field { gap: 0; }
    .page-cheatsheet .cs-field span { font-size: 9pt; }
    .page-cheatsheet .cs-row { gap: 10pt; }
    .page-cheatsheet .cs-tracker { gap: 4pt; }
    .page-cheatsheet .cs-day { aspect-ratio: auto; height: 24pt; border-radius: 4pt; background: #fff !important; border-color: #999 !important; }
    .page-cheatsheet .cs-day:has(input:checked) { background: #ddd !important; }
    .page-cheatsheet .cs-day span { color: #555 !important; }
    .page-cheatsheet .cs-plan, .page-cheatsheet .cs-plan fieldset { break-inside: avoid; }
}