/*
 * labs.intentsolutions.io — shared design tokens + base layout
 *
 * Design intent: methodology-authority aesthetic. Restrained color palette,
 * proper typographic hierarchy, no JS, no animations, fully accessible.
 * Inspired by academic publication conventions + technical documentation.
 *
 * Color palette is deliberately limited:
 *   - cream background (#fdfdfb)
 *   - dark gray body text (#1a1a1a)
 *   - one accent (deep blue #2c5282)
 *   - muted gray for metadata (#6b7280)
 *   - light gray borders (#e5e7eb)
 *
 * No third-party font CDNs — uses system font stack for performance + privacy.
 */

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body, h1, h2, h3, h4, h5, h6, p, ul, ol, dl, dd, blockquote, figure, pre {
    margin: 0;
}
ul, ol { padding-left: 1.25rem; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }

/* --- Base typography --- */
html {
    font-size: 17px;
    line-height: 1.55;
}

body {
    font-family: Charter, "Bitstream Charter", "Sitka Text", Cambria, ui-serif, Georgia, serif;
    color: #1a1a1a;
    background: #fdfdfb;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.25;
    color: #0f172a;
}

h1 { font-size: 2rem; margin-top: 0; }
h2 { font-size: 1.5rem; margin-top: 2.5rem; }
h3 { font-size: 1.2rem; margin-top: 2rem; }
h4 { font-size: 1.05rem; margin-top: 1.5rem; }

p { margin-top: 1rem; }
p:first-child { margin-top: 0; }

code, pre, kbd, samp {
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
    font-size: 0.92em;
}

code {
    background: #f3f4f6;
    padding: 0.1em 0.35em;
    border-radius: 3px;
    border: 1px solid #e5e7eb;
}

pre {
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 4px;
    padding: 1rem;
    overflow-x: auto;
    margin-top: 1rem;
    font-size: 0.85rem;
    line-height: 1.5;
}

pre code {
    background: transparent;
    border: none;
    padding: 0;
}

blockquote {
    border-left: 3px solid #2c5282;
    padding: 0.5rem 0 0.5rem 1rem;
    margin-top: 1rem;
    color: #4b5563;
    font-style: italic;
}

hr {
    border: none;
    border-top: 1px solid #e5e7eb;
    margin: 2.5rem 0;
}

/* --- Layout containers --- */
.site-header {
    border-bottom: 1px solid #e5e7eb;
    background: #fdfdfb;
}

.site-header__inner {
    max-width: 760px;
    margin: 0 auto;
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.site-header__wordmark {
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
    font-size: 0.95rem;
    font-weight: 600;
    color: #0f172a;
    text-decoration: none;
    letter-spacing: -0.01em;
}

.site-header__wordmark:hover { text-decoration: none; }

.site-nav {
    display: flex;
    gap: 1.25rem;
    font-size: 0.9rem;
}

.site-nav a {
    color: #4b5563;
    text-decoration: none;
}

.site-nav a:hover {
    color: #2c5282;
    text-decoration: underline;
}

main {
    flex: 1;
    max-width: 760px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem 4rem;
    width: 100%;
}

.site-footer {
    border-top: 1px solid #e5e7eb;
    background: #f9fafb;
    margin-top: auto;
}

.site-footer__inner {
    max-width: 760px;
    margin: 0 auto;
    padding: 1.5rem;
    font-size: 0.85rem;
    color: #6b7280;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: space-between;
}

.site-footer a { color: #6b7280; }

/* --- Page lead --- */
.lead {
    font-size: 1.1rem;
    color: #374151;
    margin-top: 1rem;
    line-height: 1.6;
}

/* --- Meta block (page metadata) --- */
.meta-block {
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 4px;
    padding: 1rem 1.25rem;
    margin-top: 2rem;
    font-size: 0.9rem;
}

.meta-block dl {
    display: grid;
    grid-template-columns: max-content 1fr;
    gap: 0.4rem 1rem;
    margin: 0;
}

.meta-block dt {
    color: #6b7280;
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
    font-size: 0.85rem;
}

.meta-block dd {
    margin: 0;
    color: #1a1a1a;
}

/* --- Status badges --- */
.badge {
    display: inline-block;
    padding: 0.15rem 0.55rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
    font-weight: 500;
    border: 1px solid transparent;
    vertical-align: 1px;
}

.badge--active { background: #dbeafe; color: #1e3a8a; border-color: #93c5fd; }
.badge--draft { background: #fef3c7; color: #78350f; border-color: #fcd34d; }
.badge--deprecated { background: #f3f4f6; color: #4b5563; border-color: #d1d5db; }
.badge--no-data { background: #fee2e2; color: #7f1d1d; border-color: #fca5a5; }

/* --- Eval-set list (index card layout) --- */
.eval-list {
    list-style: none;
    padding: 0;
    margin-top: 2rem;
}

.eval-list__item {
    border: 1px solid #e5e7eb;
    border-radius: 4px;
    padding: 1.25rem;
    margin-bottom: 1rem;
    background: #fdfdfb;
}

.eval-list__title {
    margin: 0;
    font-size: 1.15rem;
}

.eval-list__title a {
    text-decoration: none;
    color: #0f172a;
}

.eval-list__title a:hover {
    color: #2c5282;
    text-decoration: underline;
}

.eval-list__meta {
    margin-top: 0.5rem;
    font-size: 0.85rem;
    color: #6b7280;
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
}

.eval-list__desc {
    margin-top: 0.75rem;
    color: #374151;
    font-size: 0.95rem;
}

/* --- Tables --- */
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1.5rem;
    font-size: 0.92rem;
}

th, td {
    text-align: left;
    padding: 0.6rem 0.75rem;
    border-bottom: 1px solid #e5e7eb;
}

th {
    background: #f9fafb;
    font-weight: 600;
    color: #0f172a;
    border-top: 1px solid #e5e7eb;
}

table code {
    font-size: 0.85em;
}

/* --- Freshness strip stub (Phase 2 placeholder) --- */
.freshness-stub {
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    border-left: 3px solid #6b7280;
    padding: 1rem 1.25rem;
    margin-top: 2rem;
    font-size: 0.9rem;
    color: #4b5563;
}

.freshness-stub__title {
    font-weight: 600;
    color: #0f172a;
    margin-bottom: 0.25rem;
}

/* --- Responsive --- */
@media (max-width: 600px) {
    html { font-size: 16px; }
    h1 { font-size: 1.7rem; }
    h2 { font-size: 1.35rem; }
    .meta-block dl { grid-template-columns: 1fr; gap: 0.15rem; }
    .meta-block dt { font-size: 0.8rem; }
    .meta-block dd { margin-bottom: 0.5rem; }
}

/* --- Print --- */
@media print {
    .site-header, .site-footer, .site-nav { display: none; }
    body { background: white; }
    main { max-width: none; padding: 0; }
}