/* ============================================================
   v3hs- : SLYD hardware subpage cluster (August 2026 rebuild).

   Shared layout primitives for the 18 pages nested under
   /hardware. Lives here rather than in 18 scoped .razor.css
   files because the cluster is one design system; per-page
   .razor.css is reserved for modules that genuinely belong to
   a single page.

   Family accents keep the four families visually distinct
   without changing the underlying structure:
     .v3hs--accel  accelerator + architecture   cyan
     .v3hs--oem    manufacturer families        purple
     .v3hs--infra  data center dependencies     gold
     .v3hs--svc    deployment + custom work     green
   ============================================================ */

.v3hs {
    --primary: var(--slyd-primary);
    --gold: var(--slyd-accent-gold);
    --gold-soft: var(--slyd-accent-gold-soft);
    --purple: var(--slyd-accent-purple);
    --success: var(--slyd-success);
    --bg-body: var(--slyd-bg-body);
    --bg-card: var(--slyd-bg-card);
    --bg-elevated: var(--slyd-bg-elevated);
    --text-primary: var(--slyd-text-primary);
    --text-secondary: var(--slyd-text-secondary);
    --text-tertiary: var(--slyd-text-tertiary);
    --text-muted: var(--slyd-text-muted);
    --border: var(--slyd-border);
    --border-subtle: var(--slyd-border-subtle);
    --border-hover: var(--slyd-border-hover);
    --font-display: var(--slyd-font-family-heading);
    --font-body: var(--slyd-font-family);
    --font-mono: var(--slyd-font-family-mono);

    /* Overridden by the family modifiers below. */
    --accent: var(--slyd-primary);
    --accent-soft: rgba(6, 182, 212, 0.14);
    --accent-line: rgba(6, 182, 212, 0.32);

    background: var(--bg-body);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.55;
    min-height: 100vh;
    overflow-x: hidden;
}

.v3hs--accel { --accent: #06b6d4; --accent-soft: rgba(6, 182, 212, 0.14); --accent-line: rgba(6, 182, 212, 0.34); }
.v3hs--oem   { --accent: #8b5cf6; --accent-soft: rgba(139, 92, 246, 0.14); --accent-line: rgba(139, 92, 246, 0.34); }
.v3hs--infra { --accent: #f59e0b; --accent-soft: rgba(245, 158, 11, 0.13); --accent-line: rgba(245, 158, 11, 0.32); }
.v3hs--svc   { --accent: #22c55e; --accent-soft: rgba(34, 197, 94, 0.13); --accent-line: rgba(34, 197, 94, 0.32); }

.v3hs *,
.v3hs *::before,
.v3hs *::after { box-sizing: border-box; }

.v3hs a { color: inherit; text-decoration: none; }

/* Focus ring on interactive elements only. Blazor's enhanced navigation
   focuses the page <h1> after a soft navigation for screen-reader
   announcement, and a visible ring there reads as a stray box. The site
   already suppresses it via `h1:focus { outline: none }` in app.css, so
   this rule must not reintroduce it with higher specificity. */
.v3hs a:focus-visible,
.v3hs button:focus-visible,
.v3hs summary:focus-visible,
.v3hs [tabindex]:not([tabindex="-1"]):focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: 3px;
}

.v3hs-wrap {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 32px;
}

/* ---------- breadcrumb ---------- */

/* ---------- hero ---------- */

.v3hs-hero {
    padding: 72px 0 56px;
    border-bottom: 1px solid var(--border-subtle);
    background:
        radial-gradient(900px 380px at 12% -10%, var(--accent-soft), transparent 68%),
        var(--bg-body);
}

.v3hs-eyebrow {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 18px;
}

.v3hs-h1 {
    font-family: var(--font-display);
    font-size: clamp(2.125rem, 4vw, 3.125rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin: 0 0 22px;
    max-width: 20ch;
}

.v3hs-lede {
    font-size: 1.0625rem;
    line-height: 1.65;
    color: var(--text-secondary);
    max-width: 74ch;
    margin: 0 0 30px;
}

.v3hs-hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}

/* ---------- buttons ---------- */

.v3hs-btn {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 13px 22px;
    border-radius: 8px;
    font-size: 0.9375rem;
    font-weight: 600;
    border: 1px solid transparent;
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.v3hs-btn-primary {
    background: var(--gold);
    color: #1a1206;
    border-color: var(--gold);
}

.v3hs-btn-primary:hover { background: var(--slyd-accent-gold-dark, #d97706); }

.v3hs-btn-ghost {
    border-color: var(--border-hover);
    color: var(--text-primary);
}

.v3hs-btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

.v3hs-btn-quiet {
    padding: 13px 4px;
    color: var(--text-tertiary);
    font-weight: 500;
}

.v3hs-arr { transition: transform 0.15s ease; }
.v3hs-btn:hover .v3hs-arr { transform: translateX(3px); }

/* ---------- sections ---------- */

.v3hs-section { padding: 68px 0; border-bottom: 1px solid var(--border-subtle); }
.v3hs-section--alt { background: rgba(255, 255, 255, 0.015); }

.v3hs-head { margin-bottom: 34px; max-width: 78ch; }

.v3hs-kicker {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    letter-spacing: 0.13em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.v3hs-h2 {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 2.4vw, 1.9375rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.015em;
    margin: 0 0 14px;
}

.v3hs-h3 {
    font-family: var(--font-display);
    font-size: 1.0625rem;
    font-weight: 600;
    line-height: 1.35;
    margin: 0 0 10px;
}

.v3hs-p {
    color: var(--text-secondary);
    max-width: 78ch;
    margin: 0 0 16px;
}

.v3hs-p:last-child { margin-bottom: 0; }

.v3hs-p a,
.v3hs-li a,
.v3hs-answer a {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 2px;
}

/* Direct answer block: the first substantial answer on the page. */
.v3hs-answer {
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--text-secondary);
    max-width: 80ch;
    padding-left: 20px;
    border-left: 2px solid var(--accent-line);
    margin: 0;
}

/* ---------- generic card grid ---------- */

.v3hs-grid {
    display: grid;
    gap: 18px;
    grid-template-columns: repeat(auto-fit, minmax(268px, 1fr));
}

.v3hs-grid-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }

.v3hs-card {
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    background: var(--bg-card);
}

.v3hs-card p { color: var(--text-tertiary); margin: 0; font-size: 0.9375rem; }

a.v3hs-card { display: block; transition: border-color 0.15s ease, background 0.15s ease; }
a.v3hs-card:hover { border-color: var(--accent); background: var(--bg-elevated); }
a.v3hs-card .v3hs-h3 { color: var(--text-primary); }

.v3hs-card-tag {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    display: block;
    margin-bottom: 10px;
}

/* ---------- lists ---------- */

.v3hs-list { list-style: none; margin: 0; padding: 0; }

.v3hs-list .v3hs-li {
    position: relative;
    padding: 0 0 0 22px;
    margin-bottom: 11px;
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
}

.v3hs-list .v3hs-li::before {
    content: "";
    position: absolute;
    left: 2px;
    top: 0.62em;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
}

.v3hs-list .v3hs-li:last-child { margin-bottom: 0; }

.v3hs-cols {
    display: grid;
    gap: 10px 40px;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* ---------- numbered stage rail ---------- */

.v3hs-stages { list-style: none; margin: 0; padding: 0; counter-reset: v3hs-stage; }

.v3hs-stage {
    counter-increment: v3hs-stage;
    position: relative;
    padding: 0 0 26px 52px;
    border-left: 1px solid var(--border);
    margin-left: 15px;
}

.v3hs-stage:last-child { border-left-color: transparent; padding-bottom: 0; }

.v3hs-stage::before {
    content: counter(v3hs-stage);
    position: absolute;
    left: -15px;
    top: -2px;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: var(--bg-body);
    border: 1px solid var(--accent-line);
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

.v3hs-stage p { color: var(--text-tertiary); font-size: 0.9375rem; margin: 0; max-width: 74ch; }

/* ---------- tables ---------- */

.v3hs-tablewrap {
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: 12px;
    -webkit-overflow-scrolling: touch;
}

.v3hs-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
    min-width: 560px;
}

/* Caption sits below the table: it is source and scope context for the
   data, so it reads better as a footnote than as a heading competing
   with the column headers. */
.v3hs-table caption {
    caption-side: bottom;
    text-align: left;
    padding: 14px 18px 16px;
    color: var(--text-muted);
    font-size: 0.8125rem;
    line-height: 1.5;
    border-top: 1px solid var(--border-subtle);
}

.v3hs-table th,
.v3hs-table td {
    padding: 13px 18px;
    text-align: left;
    vertical-align: top;
    border-bottom: 1px solid var(--border-subtle);
}

.v3hs-table thead th {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.8125rem;
    background: rgba(255, 255, 255, 0.02);
    white-space: nowrap;
}

.v3hs-table tbody th {
    color: var(--text-secondary);
    font-weight: 500;
    white-space: nowrap;
}

.v3hs-table td { color: var(--text-tertiary); }
.v3hs-table tbody tr:last-child th,
.v3hs-table tbody tr:last-child td { border-bottom: 0; }

/* ---------- source and caveat notes ---------- */

.v3hs-note {
    font-size: 0.8125rem;
    line-height: 1.6;
    color: var(--text-muted);
    max-width: 86ch;
    margin: 16px 0 0;
}

.v3hs-note a { color: var(--text-tertiary); text-decoration: underline; text-underline-offset: 2px; }
.v3hs-note a:hover { color: var(--accent); }

.v3hs-sources {
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 22px 24px;
    background: rgba(255, 255, 255, 0.015);
}

.v3hs-sources h2 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    margin: 0 0 12px;
}

.v3hs-sources ul { list-style: none; margin: 0; padding: 0; }

.v3hs-sources li {
    font-size: 0.8125rem;
    line-height: 1.6;
    color: var(--text-muted);
    padding: 6px 0;
    border-bottom: 1px solid var(--border-subtle);
    word-break: break-word;
}

.v3hs-sources li:last-child { border-bottom: 0; }
.v3hs-sources a { color: var(--text-tertiary); text-decoration: underline; text-underline-offset: 2px; }
.v3hs-sources a:hover { color: var(--accent); }

/* ---------- FAQ ---------- */

.v3hs-faq { border-top: 1px solid var(--border-subtle); }

.v3hs-faq-item { border-bottom: 1px solid var(--border-subtle); }

.v3hs-faq-q {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 20px;
    padding: 20px 0;
    cursor: pointer;
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    list-style: none;
}

.v3hs-faq-q::-webkit-details-marker { display: none; }
.v3hs-faq-q:hover { color: var(--accent); }

.v3hs-faq-mark {
    flex-shrink: 0;
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 1.125rem;
    line-height: 1;
    transition: transform 0.15s ease;
}

.v3hs-faq-item[open] .v3hs-faq-mark { transform: rotate(45deg); }

.v3hs-faq-a {
    margin: 0;
    padding: 0 44px 24px 0;
    color: var(--text-tertiary);
    font-size: 0.9375rem;
    line-height: 1.7;
    max-width: 84ch;
}

.v3hs-faq-a a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }

/* ---------- related paths ---------- */

.v3hs-links {
    display: grid;
    gap: 10px;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}

.v3hs-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 14px;
    padding: 15px 18px;
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 0.9375rem;
    color: var(--text-secondary);
    transition: border-color 0.15s ease, color 0.15s ease;
}

.v3hs-link:hover { border-color: var(--accent); color: var(--text-primary); }
.v3hs-link .v3hs-arr { color: var(--accent); }

/* ---------- closing CTA ---------- */

.v3hs-cta { padding: 64px 0 72px; }

.v3hs-cta-card {
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 38px;
    background:
        radial-gradient(700px 260px at 88% 0%, var(--accent-soft), transparent 70%),
        var(--bg-card);
    display: flex;
    flex-wrap: wrap;
    gap: 28px;
    align-items: center;
    justify-content: space-between;
}

.v3hs-cta-copy { flex: 1 1 420px; }

.v3hs-cta-copy h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 0 10px;
    line-height: 1.25;
}

.v3hs-cta-copy p { color: var(--text-tertiary); margin: 0; max-width: 62ch; font-size: 0.9375rem; }

.v3hs-cta-act { display: flex; flex-wrap: wrap; gap: 12px; }

.v3hs-updated {
    margin: 24px 0 0;
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

/* ---------- responsive ---------- */

@media (max-width: 900px) {
    .v3hs-hero { padding: 52px 0 44px; }
    .v3hs-section { padding: 52px 0; }
    .v3hs-cta-card { padding: 28px; }
}

@media (max-width: 640px) {
    .v3hs-wrap { padding: 0 20px; }
    .v3hs-h1 { max-width: none; }
    .v3hs-hero-cta .v3hs-btn { flex: 1 1 100%; justify-content: center; }
    .v3hs-btn-quiet { justify-content: flex-start; }
    .v3hs-cta-act { width: 100%; }
    .v3hs-cta-act .v3hs-btn { flex: 1 1 100%; justify-content: center; }
    .v3hs-stage { padding-left: 40px; }
    .v3hs-faq-a { padding-right: 0; }
}

@media (prefers-reduced-motion: reduce) {
    .v3hs *,
    .v3hs *::before,
    .v3hs *::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}

/* Spacing when two link groups stack in one section. */
.v3hs-links-spaced { margin-bottom: 26px; }