/* Guide pages: article typography on top of landing.css (same tokens). */

.nav-inner .nav-link + .nav-link { margin-left: -4px; }

.article-wrap { padding: 28px 0 24px; }

.crumbs { margin: 0 0 12px; font-size: 0.9rem; }

.crumbs a { color: var(--ink-faint); text-decoration: none; }

.crumbs a::before { content: '← '; }

.article h1,
.guides-title {
    font-size: clamp(1.9rem, 7vw, 2.8rem);
    line-height: 1.1;
    letter-spacing: -0.025em;
    margin: 0 0 10px;
    font-weight: 600;
}

.byline { font-size: 0.88rem; color: var(--ink-faint); margin: 0 0 26px; }

.article { font-size: 1.05rem; line-height: 1.7; }

.article h2 {
    font-size: 1.4rem;
    letter-spacing: -0.015em;
    line-height: 1.25;
    margin: 36px 0 10px;
    font-weight: 600;
}

.article h3 { font-size: 1.12rem; margin: 26px 0 6px; font-weight: 600; }

.article p, .article li { color: var(--ink-soft); }

.article strong { color: var(--ink); font-weight: 600; }

.article ul, .article ol { padding-left: 1.3em; }

.article li { margin-bottom: 6px; }

.formula {
    background: var(--paper-raised);
    border-radius: 12px;
    box-shadow: var(--shadow);
    padding: 14px 18px;
    margin: 18px 0;
    font-weight: 600;
    color: var(--ink);
    overflow-x: auto;
}

.note {
    background: var(--accent-wash);
    border-radius: 12px;
    padding: 14px 18px;
    margin: 20px 0;
    color: var(--ink);
}

.note p { margin: 0; color: var(--ink); }

.table-scroll { overflow-x: auto; margin: 18px 0; }

.article table {
    border-collapse: collapse;
    width: 100%;
    background: var(--paper-raised);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    font-size: 0.95rem;
}

.article th, .article td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--rule); }

.article th { font-weight: 600; color: var(--ink); background: var(--paper-sunk); }

.article tr:last-child td { border-bottom: 0; }

.guide-cta {
    margin: 40px 0 8px;
    padding: 20px;
    background: var(--paper-raised);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.guide-cta p { margin: 0 0 14px; color: var(--ink-soft); }

.guide-cta strong { color: var(--ink); }

.related { margin: 32px 0 0; }

.related h2 { font-size: 1.1rem; margin: 0 0 10px; font-weight: 600; }

.related ul { margin: 0; padding-left: 1.2em; }

.related li { margin-bottom: 6px; }

/* Guides list */

.guide-list { list-style: none; margin: 24px 0 0; padding: 0; display: grid; gap: 10px; }

.guide-card {
    display: block;
    padding: 16px 18px;
    background: var(--paper-raised);
    border-radius: 14px;
    box-shadow: var(--shadow);
    text-decoration: none;
    transition: box-shadow 0.15s ease;
}

.guide-card:hover { box-shadow: var(--shadow-lg); }

.guide-card-title { display: block; color: var(--ink); font-weight: 600; margin-bottom: 4px; }

.guide-card-blurb { display: block; color: var(--ink-soft); font-size: 0.93rem; }

/* Calculator */

.calc {
    background: var(--paper-raised);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
    margin: 8px 0 28px;
}

.calc-fields { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }

.calc label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--ink); margin-bottom: 6px; }

.calc input {
    width: 100%;
    font: inherit;
    font-size: 1.1rem;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid #11111129;
    background: var(--paper);
    color: var(--ink);
}

.calc input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

.calc-result { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--rule); }

.calc-pct { font-size: 2.4rem; font-weight: 600; letter-spacing: -0.02em; line-height: 1; }

.calc-pct.good { color: var(--mint); }

.calc-pct.bad { color: #c0392b; }

.calc-line { margin: 10px 0 0; color: var(--ink); font-size: 1.05rem; }

.calc-error { color: #c0392b; margin: 10px 0 0; }

@media (max-width: 480px) {
    .calc-fields { grid-template-columns: 1fr 1fr; }
    .calc-fields > div:last-child { grid-column: 1 / -1; }
}

@media (min-width: 900px) {
    .article-wrap { padding: 48px 0 40px; }
}