/**
 * Beyond Volatility — Homepage v6.0 "Structured Swiss" (sections)
 * ================================================================
 * Homepage-specific sections only. Tokens + primitives live in
 * css/swiss-core.css (enqueued as a dependency). Every color in this
 * sheet goes through --sw-* tokens, so light/dark theming is automatic.
 *
 * TOC
 *   1. Hero
 *   2. Production apps (structural case grid)
 *   3. Tools index wrapper
 *   4. Field Notes — editorial two-column
 *   5. Newsletter wrapper
 *   6. Colophon
 *   7. Responsive & motion
 */

/* ============================================================
   1. HERO
   ============================================================ */
.bv-sw-hero {
    position: relative;
    padding: clamp(44px, 7vh, 88px) 0 clamp(52px, 8vh, 100px);
    border-bottom: 1px solid var(--sw-line);
    overflow: hidden;
}
.bv-sw-hero > .bv-sw-wrap { position: relative; z-index: 1; }
.bv-sw-hero .bv-sw-masthead { margin-bottom: clamp(40px, 7vh, 88px); }

.bv-sw-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(28px, 4vw, 64px);
    align-items: start;
}

/* Homepage headline: one size up from the standard page hero. */
.bv-sw-hero .bv-sw-h1 {
    font-size: clamp(2.9rem, 6.6vw, 5.6rem);
    margin-bottom: 28px;
}

.bv-sw-hero-sub {
    font-family: var(--sw-body);
    font-weight: 300;
    font-size: clamp(1.05rem, 1.6vw, 1.22rem);
    line-height: 1.65;
    max-width: 54ch;
    margin: 0 0 12px;
    color: var(--sw-graphite);
}
.bv-sw-hero-note {
    font-family: var(--sw-mono);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--sw-graphite);
    margin: 0 0 34px;
}
.bv-sw-hero-note .ac { color: var(--sw-accent); }

.bv-sw-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 52px;
}

/* Stat row: bare numbers over hairlines, evenly gridded. */
.bv-sw-statrow {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: clamp(18px, 2.5vw, 36px);
    max-width: 720px;
}

/* Latest-release card: precise, labeled, quietly blue. */
.bv-sw-latest {
    margin-top: clamp(4px, 3vh, 40px);
}
.bv-sw-latest-card {
    display: block;
    text-decoration: none;
    color: var(--sw-ink);
    background: var(--sw-canvas);
    border: 1px solid var(--sw-line);
    border-top: 2px solid var(--sw-accent);
    padding: 24px 26px;
    transition: transform 0.3s var(--sw-ease), box-shadow 0.3s var(--sw-ease), border-color 0.3s var(--sw-ease);
}
.bv-sw-latest-card:hover,
.bv-sw-latest-card:focus-visible {
    transform: translateY(-4px);
    box-shadow: var(--sw-lift-shadow);
    border-color: var(--sw-graphite);
    border-top-color: var(--sw-accent);
    color: var(--sw-ink);
    text-decoration: none;
}
.bv-sw-latest-card .row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}
.bv-sw-latest-card h2 {
    font-family: var(--sw-display);
    font-weight: 500;
    font-size: 1.5rem;
    line-height: 1.12;
    letter-spacing: -0.015em;
    margin: 0 0 8px;
}
.bv-sw-latest-card p {
    font-family: var(--sw-body);
    font-weight: 300;
    font-size: 0.92rem;
    line-height: 1.55;
    color: var(--sw-graphite);
    margin: 0 0 18px;
}
.bv-sw-latest-card .go {
    font-family: var(--sw-mono);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--sw-accent);
}

/* ============================================================
   2. PRODUCTION APPS — structural case grid
   ============================================================ */
.bv-sw-ship-head {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: clamp(32px, 5vh, 56px);
}
.bv-sw-ship-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(20px, 2.5vw, 32px);
}
.bv-sw-app {
    background: var(--sw-canvas);
    border: 1px solid var(--sw-line);
    display: flex;
    flex-direction: column;
    transition: transform 0.3s var(--sw-ease), box-shadow 0.3s var(--sw-ease), border-color 0.3s var(--sw-ease);
}
.bv-sw-app:hover {
    transform: translateY(-4px);
    box-shadow: var(--sw-lift-shadow);
    border-color: var(--sw-graphite);
}
.bv-sw-app .bv-sw-figure { border: 0; border-bottom: 1px solid var(--sw-line); }

.bv-sw-app-body { padding: 24px 26px 26px; display: flex; flex-direction: column; flex: 1; }
.bv-sw-app-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}
.bv-sw-app-name {
    font-family: var(--sw-display);
    font-weight: 500;
    font-size: 1.55rem;
    line-height: 1.08;
    letter-spacing: -0.015em;
    margin: 0;
}
.bv-sw-app-desc {
    font-family: var(--sw-body);
    font-weight: 300;
    font-size: 0.93rem;
    line-height: 1.6;
    color: var(--sw-graphite);
    margin: 0 0 18px;
}
/* Origin line: the spreadsheet provenance, as quiet mono metadata. */
.bv-sw-app-origin {
    font-family: var(--sw-mono);
    font-size: 0.68rem;
    letter-spacing: 0.04em;
    line-height: 1.9;
    border-top: 1px solid var(--sw-line);
    padding-top: 12px;
    margin: auto 0 16px;
    color: var(--sw-graphite);
}
.bv-sw-app-origin .k { color: var(--sw-ink); font-weight: 500; text-transform: uppercase; letter-spacing: 0.08em; }
.bv-sw-app-origin .arrow { color: var(--sw-accent); }
.bv-sw-app-links { display: flex; flex-wrap: wrap; gap: 10px; }
.bv-sw-app-links a {
    font-family: var(--sw-mono);
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--sw-ink);
    border: 1px solid var(--sw-line);
    /* >=44px tap target (v6 audit) */
    padding: 13px 16px;
    transition: border-color 0.2s var(--sw-ease), color 0.2s var(--sw-ease), background-color 0.2s var(--sw-ease);
}
.bv-sw-app-links a:hover,
.bv-sw-app-links a:focus-visible {
    border-color: var(--sw-accent);
    color: var(--sw-accent);
    text-decoration: none;
}

/* ============================================================
   3. TOOLS INDEX WRAPPER
   ============================================================ */
.bv-sw-index-head {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 30px;
}
.bv-sw-index-note {
    font-family: var(--sw-mono);
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--sw-graphite);
}
.bv-sw-index-note .ac { color: var(--sw-accent); }

/* ============================================================
   4. FIELD NOTES — EDITORIAL TWO-COLUMN
   ============================================================ */
.bv-sw-notes-head {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: clamp(28px, 5vh, 52px);
}
.bv-sw-notes-grid {
    display: grid;
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(28px, 4vw, 64px);
    align-items: start;
}

.bv-sw-lead {
    display: block;
    text-decoration: none;
    color: var(--sw-ink);
}
.bv-sw-lead .bv-sw-figure { margin-bottom: 20px; }
.bv-sw-lead-meta,
.bv-sw-note-meta {
    font-family: var(--sw-mono);
    font-size: 0.64rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--sw-graphite);
    margin-bottom: 10px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px 16px;
}
.bv-sw-lead-meta .cat,
.bv-sw-note-meta .cat { color: var(--sw-accent); }
.bv-sw-lead h3 {
    font-family: var(--sw-display);
    font-weight: 500;
    font-size: clamp(1.5rem, 2.8vw, 2.2rem);
    line-height: 1.12;
    letter-spacing: -0.02em;
    margin: 0 0 12px;
}
.bv-sw-lead:hover h3 { color: var(--sw-accent); }
.bv-sw-lead .standfirst {
    font-family: var(--sw-body);
    font-weight: 300;
    font-size: 0.98rem;
    line-height: 1.65;
    color: var(--sw-graphite);
    margin: 0;
}

.bv-sw-note {
    display: grid;
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 18px;
    align-items: start;
    padding: 20px 0;
    border-top: 1px solid var(--sw-line);
    text-decoration: none;
    color: var(--sw-ink);
}
.bv-sw-note:last-of-type { border-bottom: 1px solid var(--sw-line); }
.bv-sw-note .bv-sw-figure { aspect-ratio: 1 / 1; }
.bv-sw-note .bv-sw-figure img { height: 100%; object-fit: cover; }
.bv-sw-note .ph {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    font-family: var(--sw-mono);
    font-size: 0.9rem;
    color: var(--sw-graphite);
}
.bv-sw-note h4 {
    font-family: var(--sw-display);
    font-weight: 500;
    font-size: 1.08rem;
    line-height: 1.25;
    letter-spacing: -0.01em;
    margin: 0;
}
.bv-sw-note:hover h4 { color: var(--sw-accent); }

/* ============================================================
   5. NEWSLETTER WRAPPER
   ============================================================ */
.bv-sw-work .bv-sw-inkblock { max-width: 860px; margin: 0 auto; }

/* ============================================================
   6. COLOPHON
   ============================================================ */
.bv-sw-colophon-grid {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 64px);
    align-items: start;
}
.bv-sw-colophon h3 {
    font-family: var(--sw-display);
    font-weight: 500;
    font-size: clamp(1.4rem, 2.4vw, 1.9rem);
    letter-spacing: -0.015em;
    line-height: 1.15;
    margin: 0 0 14px;
}
.bv-sw-colophon p {
    font-family: var(--sw-body);
    font-weight: 300;
    font-size: 0.98rem;
    line-height: 1.7;
    color: var(--sw-graphite);
    margin: 0 0 22px;
    max-width: 58ch;
}

/* ============================================================
   7. RESPONSIVE & MOTION
   ============================================================ */
@media (max-width: 900px) {
    .bv-sw-hero-grid,
    .bv-sw-notes-grid,
    .bv-sw-colophon-grid,
    .bv-sw-ship-grid { grid-template-columns: 1fr; }
    .bv-sw-statrow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .bv-sw-latest { margin-top: 8px; }
}

@media (prefers-reduced-motion: reduce) {
    .bv-sw-latest-card,
    .bv-sw-app,
    .bv-sw-app-links a { transition: none; }
    .bv-sw-latest-card:hover,
    .bv-sw-app:hover { transform: none; box-shadow: none; }
}