/* site/css/shell.css */
* {
    box-sizing: border-box;
}
body {
    margin: 0;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
    font-family: var(--font-display);
    letter-spacing: -0.02em;
}

.label-mono {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--text-secondary);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 40;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--border-color);
    background: color-mix(in oklab, var(--bg-primary) 85%, transparent);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

@keyframes annealBlink {
    0%,
    49% {
        opacity: 1;
    }
    50%,
    100% {
        opacity: 0;
    }
}
.anneal-logo {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 16px;
    letter-spacing: -0.02em;
    display: inline-flex;
    align-items: center;
    color: var(--text-primary);
    text-decoration: none;
}
.anneal-logo .caret {
    display: inline-block;
    width: 6px;
    height: 14px;
    margin-left: 2px;
    border-radius: 1px;
    background: var(--accent);
    animation: annealBlink 1.1s step-end infinite;
}
@media (prefers-reduced-motion: reduce) {
    .anneal-logo .caret {
        animation: none;
    }
}

.site-header nav a,
.site-header .dropdown-toggle {
    color: var(--text-secondary);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    transition: color 0.15s ease;
}
.site-header nav a:hover,
.nav-dropdown:hover .dropdown-toggle {
    color: var(--text-primary);
}
.site-header nav a[aria-current="page"] {
    color: var(--accent);
}
.site-footer {
    margin-top: var(--space-5);
    padding: var(--space-4);
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.85rem;
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-2);
}
.site-footer .label-mono {
    color: var(--text-secondary);
}
.site-footer p {
    max-width: 32rem;
    margin: 0;
}
main {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 0 var(--space-4);
}
main > section:not(.hero) {
    border-top: 1px solid var(--border-color);
    padding: var(--space-6) 0;
}
main a,
.site-footer a {
    color: var(--accent);
    font-weight: 600;
    text-decoration: underline;
    text-decoration-color: var(--accent-quiet);
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
}
main a:hover,
.site-footer a:hover {
    color: var(--accent-hover);
    text-decoration-color: var(--accent-hover);
}
.callout {
    background: var(--bg-secondary);
    border-left: 3px solid var(--accent);
    border-radius: var(--radius);
    padding: var(--space-3);
    margin: var(--space-4) 0;
}
.highlight-box {
    background: var(--bg-warm);
    border-radius: var(--radius-card);
    padding: var(--space-4);
}
.case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-3);
}
.case-card {
    display: block;
    padding: var(--space-3);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    color: var(--text-primary);
    text-decoration: none;
}
.case-card:hover {
    border-color: var(--accent);
}
.case-card h3 {
    margin-top: 0;
}
.replay-branch-controls {
    display: flex;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
}
.replay-branch-controls button {
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: var(--radius);
    cursor: pointer;
}

/* ---- Homepage: hero ---- */
.hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 18rem;
    gap: var(--space-5);
    align-items: start;
    padding: 80px 0;
}
@media (min-width: 768px) {
    .hero {
        padding: 112px 0;
    }
}
@media (max-width: 720px) {
    .hero {
        grid-template-columns: 1fr;
    }
}
.hero-headline {
    font-size: clamp(2.25rem, 5vw, 3.75rem);
    line-height: 1.05;
    font-weight: 600;
    max-width: 48rem;
    margin: var(--space-4) 0 0;
}
.hero-lede {
    font-size: 1.125rem;
    line-height: 1.625;
    color: var(--text-secondary);
    max-width: 42rem;
    margin: 32px 0 0;
}
.hero-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-4);
    margin-top: var(--space-5);
}
.btn-ink {
    display: inline-block;
    background: var(--ink);
    color: var(--ink-foreground);
    font-family: var(--font-mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius);
    text-decoration: none;
}
.btn-ink:hover {
    opacity: 0.85;
}
.link-ember {
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    text-decoration: none;
}
.link-ember:hover {
    text-decoration: underline;
    text-underline-offset: 3px;
}
.hero-aside {
    align-self: end;
    padding-left: var(--space-4);
    border-left: 1px solid var(--border-color);
    font-size: 0.875rem;
    line-height: 1.625;
    color: var(--text-secondary);
}
@media (min-width: 768px) {
    .hero-aside {
        padding-top: var(--space-3);
    }
}
@media (max-width: 720px) {
    .hero-aside {
        border-left: none;
        border-top: 1px solid var(--border-color);
        padding-left: 0;
        padding-top: var(--space-3);
        margin-top: var(--space-3);
    }
}
.hero-aside p {
    margin: var(--space-3) 0 0;
    color: var(--text-secondary);
}

/* ---- Homepage: section labels + entry-card grid ---- */
.section-heading-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--text-secondary);
    font-weight: 500;
    margin: 0 0 32px;
}
.section-split {
    display: grid;
    gap: var(--space-4);
}
@media (min-width: 768px) {
    .section-split {
        grid-template-columns: 8rem 1fr;
        gap: 32px;
    }
    .section-split .section-heading-label {
        margin: 0;
    }
}
.prose {
    max-width: 42rem;
    line-height: 1.6;
}
.entry-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1px;
    background: var(--border-color);
    border: 1px solid var(--border-color);
}
@media (min-width: 640px) {
    .entry-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (min-width: 1024px) {
    .entry-grid--workflows {
        grid-template-columns: repeat(3, 1fr);
    }
}
.entry-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    background: var(--bg-secondary);
    padding: var(--space-4);
    text-decoration: none;
    color: var(--text-primary);
    transition: border-color 0.15s ease;
}
.entry-card:hover {
    outline: 1px solid var(--accent);
    outline-offset: -1px;
}
.entry-card-index {
    font-family: var(--font-mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--text-secondary);
}
.entry-card:hover .entry-card-index {
    color: var(--accent);
}
.entry-card h3 {
    margin: 0;
    font-size: 1.125rem;
    line-height: 1.375;
}
.entry-card p {
    margin: 0;
    font-size: 0.875rem;
    line-height: 1.625;
    color: var(--text-secondary);
}
.entry-card-hint {
    margin-top: auto;
    padding-top: var(--space-2);
    font-family: var(--font-mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--accent);
    opacity: 0;
    transition: opacity 0.15s ease;
}
.entry-card:hover .entry-card-hint {
    opacity: 1;
}

/* ---- Homepage: stack pills ---- */
.stack-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    list-style: none;
    margin: 0;
    padding: 0;
}
.stack-pill {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.06em;
    padding: 6px 12px;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.nav-list {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: var(--space-3);
}

.nav-dropdown {
    position: relative;
}

.dropdown-toggle {
    background: none;
    border: none;
    padding: 0;
    margin: 0;
    cursor: pointer;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    list-style: none;
    margin: var(--space-1) 0 0;
    padding: var(--space-2) 0;
    min-width: 200px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
}

/* Show dropdown on hover */
.nav-dropdown:hover .dropdown-menu {
    display: block;
}

.dropdown-menu a {
    display: block;
    padding: var(--space-2) var(--space-3);
    color: var(--text-secondary);
    text-decoration: none;
    font: inherit;
}

.dropdown-menu a:hover,
.dropdown-menu a[aria-current="page"] {
    color: var(--accent);
    background: var(--bg-tertiary);
}