/* ==========================================================================
   CASE STUDY PAGES (/projects/<slug>)
   Uses existing design tokens + theme duality. No new palette.
   ========================================================================== */

.case-study-page {
    --page-gutter: 16px;
    max-width: 860px;
    margin: 0 auto;
    padding: calc(var(--space-24) + var(--space-4)) var(--page-gutter) var(--space-16);
    font-family: var(--font-body);
    color: var(--theme-text);
}

@media (min-width: 600px) {
    .case-study-page {
        --page-gutter: 24px;
        padding-top: calc(var(--space-24) + var(--space-8));
    }
}

@media (min-width: 1024px) {
    .case-study-page {
        --page-gutter: 32px;
    }
}

/* ---- Breadcrumb: a quiet pill back to the index ---------------------------- */
.breadcrumb {
    margin-bottom: var(--space-6);
}

.breadcrumb .pill-btn {
    margin-left: -4px;
}

/* ---- Hero ------------------------------------------------------------------ */
.page-hero-kicker {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin: 0 0 var(--space-3);
}

.case-hero h1 {
    font-family: var(--font-display);
    font-size: clamp(2.25rem, 6vw, 3.75rem);
    line-height: 1.05;
    margin: 0 0 var(--space-4);
}

.case-hero-tagline {
    font-size: var(--text-lg);
    line-height: 1.65;
    color: var(--theme-text-secondary);
    max-width: 62ch;
    margin: 0 0 var(--space-6);
}

.badge-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

/* Hero tags: the same mono pill tags as the case-file cards. */
.badge-row .tag {
    padding: 5px 9px;
    border-radius: 999px;
    border: 1px solid var(--sf-border);
    background: var(--sf-fog);
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 600;
    line-height: 1;
    color: var(--sf-text);
    white-space: nowrap;
}

.badge-row .tag-status {
    color: var(--sf-accent);
    background: rgba(var(--sf-accent-rgb), 0.12);
}

/* ---- TL;DR card ------------------------------------------------------------- */
/* Material from .sf-card (components/surface.css). */
.tldr-card {
    padding: 18px;
    margin: var(--space-8) 0;
}

@media (min-width: 600px) {
    .tldr-card {
        padding: var(--space-6);
    }
}

.tldr-card h2 {
    font-family: var(--font-display);
    font-size: var(--text-lg);
    margin: 0 0 var(--space-4);
}

.tldr-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-4);
    margin: 0;
}

@media (min-width: 600px) {
    .tldr-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

.tldr-grid dt {
    font-family: var(--font-sans);
    font-size: var(--text-xs);
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--theme-primary);
    margin-bottom: var(--space-1);
}

.tldr-grid dd {
    margin: 0;
    font-size: var(--text-sm);
    line-height: 1.55;
    color: var(--theme-text-secondary);
}

/* ---- Hero media placeholder --------------------------------------------------- */
.case-figure {
    margin: 0 0 var(--space-10);
}

.case-hero-media {
    display: block;
    width: 100%;
    max-width: 100%;
    height: auto;
    aspect-ratio: 1400 / 742;
    object-fit: cover;
    object-position: top center;
    border: 1px solid var(--sf-border);
    border-radius: 16px;
    background: var(--sf-fog);
    box-shadow: var(--sf-pill-shadow);
}

.case-figure figcaption {
    margin-top: var(--space-2);
    font-size: var(--text-xs);
    color: var(--theme-text-muted);
    text-align: center;
}
/* FIG grammar on the hero media */
.case-figure .fig-caption {
    font-size: 0.75rem;
    text-align: center;
}
.case-figure .fig-caption b {
    color: var(--hud-label);
}

/* ---- Body sections -------------------------------------------------------------- */
.case-body {
    /* Room for the numbered side-rail on wide screens */
    position: relative;
}
.case-section {
    margin-bottom: var(--space-12);
    scroll-margin-top: 100px;
}

.case-section h2 {
    font-family: var(--font-display);
    font-size: clamp(1.35rem, 3vw, 1.75rem);
    line-height: 1.25;
    margin: 0 0 var(--space-5);
    display: flex;
    align-items: baseline;
    gap: var(--space-3);
}

.case-section-no,
.case-section-no.hud-readout {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--hud-label);
    line-height: inherit;
}

/* ---- Numbered side-rail (wide screens only) ---------------------------------------- */
@media (min-width: 1024px) {
    .case-body {
        padding-left: 64px;
    }
    .case-body::before {
        content: "";
        position: absolute;
        left: 18px;
        top: 6px;
        bottom: 6px;
        width: 1px;
        background: var(--theme-border);
    }
    .case-body .case-rail {
        position: absolute;
        left: 0;
        top: 0;
        display: flex;
        flex-direction: column;
        gap: 14px;
        font-family: var(--font-mono);
        font-size: 0.6875rem;
        letter-spacing: 0.1em;
        color: var(--theme-text-tertiary);
    }
    .case-body .case-rail a {
        color: var(--theme-text-tertiary);
        text-decoration: none;
        transition: color var(--duration-fast) var(--ease-out);
    }
    .case-body .case-rail a:hover,
    .case-body .case-rail a.active {
        color: var(--hud-label);
    }
    .case-body .case-rail a:focus-visible {
        outline: 2px solid var(--sf-accent);
        outline-offset: 3px;
        border-radius: 4px;
    }
}

.case-body p {
    font-size: 1.02rem;
    line-height: 1.7;
    color: var(--theme-text);
    margin: 0 0 var(--space-4);
    max-width: 68ch;
}

.case-body ul {
    margin: 0 0 var(--space-4);
    padding-left: var(--space-5);
}

.case-body li {
    font-size: 1.02rem;
    line-height: 1.65;
    margin-bottom: var(--space-3);
    max-width: 68ch;
}

.case-body li::marker {
    color: var(--theme-primary);
}

.case-body strong {
    color: var(--theme-text);
    font-weight: 700;
}

.case-body code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    background: var(--theme-surface-tertiary);
    border: var(--theme-surface-border);
    border-radius: var(--rounded-sm);
    padding: 0.1em 0.4em;
}

.case-body pre {
    background: var(--theme-surface-tertiary);
    border: var(--theme-surface-border);
    border-radius: var(--rounded-lg);
    padding: var(--space-4);
    overflow-x: auto;
    margin: 0 0 var(--space-5);
}

.case-body pre code {
    background: none;
    border: none;
    padding: 0;
    font-size: var(--text-sm);
    line-height: 1.6;
}

/* ---- Stakeholder list ------------------------------------------------------------ */
.stakeholder-list li {
    margin-bottom: var(--space-4);
}

/* ---- Next link --------------------------------------------------------------------- */
.case-next {
    margin-top: var(--space-16);
    text-align: center;
    font-size: var(--text-lg);
}
.case-next .pill-btn {
    font-size: 1rem;
}
.case-next .hand {
    margin: 0 0 var(--space-2);
    font-size: 1.25rem;
}

/* ---- Responsive ---------------------------------------------------------------------- */


/* 2026-09-28: rail reading progress, status line, talk band, Aviz brace */
@media (min-width: 1024px) {
    .case-body .case-rail a {
        position: relative;
        padding-left: 10px;
    }
    .case-body .case-rail a::before {
        content: "";
        position: absolute;
        left: 0;
        top: 1px;
        bottom: 1px;
        width: 2px;
        border-radius: 2px;
        background: var(--hud-label);
        transform: scaleY(0);
        transform-origin: top;
    }
    .case-body .case-rail a.active::before {
        transform: scaleY(var(--read, 0));
    }
}

.case-ship {
    margin-top: var(--space-4);
}

.case-talk {
    display: grid;
    justify-items: center;
    gap: var(--space-3);
    margin: var(--space-12) auto var(--space-6);
    text-align: center;
}

.case-talk-title {
    margin: 0;
    font-family: var(--font-display);
    font-size: 1.375rem;
    font-weight: 600;
}

.case-braced {
    margin: var(--space-3) 0;
}

.case-braced > ul {
    margin: 0;
}

.case-margin {
    margin: var(--space-2) 0 0;
    color: var(--ink-hand);
}

.case-margin .ink--margin {
    color: var(--doodle-line);
    margin-right: 6px;
}