/* ============================================================
   BRAND HUB — brand-page
   ============================================================ */

.brand-page { min-height: 100vh; }

/* Hero */
.brand-hero {
    background: linear-gradient(135deg, #0a0a1a 0%, #1a1a4a 50%, #0057FF 100%);
    padding: var(--space-16) var(--space-6) var(--space-12);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.brand-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle, rgba(255,255,255,0.04) 1px, transparent 1px);
    background-size: 32px 32px;
    pointer-events: none;
}

.brand-hero-inner { position: relative; max-width: 700px; margin: 0 auto; }

.brand-eyebrow {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.6);
    margin: 0 0 var(--space-3);
}

.brand-hero-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    color: #fff;
    margin: 0 0 var(--space-4);
}

.brand-hero-sub {
    font-size: 1rem;
    color: rgba(255,255,255,0.75);
    margin: 0 0 var(--space-8);
    line-height: 1.65;
}

.brand-hero-pills {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    justify-content: center;
}

.brand-hero-pill {
    padding: 6px 14px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--radius-full);
    font-size: 0.82rem;
    font-weight: 600;
    color: #fff;
    text-decoration: none;
    transition: background var(--transition-fast), border-color var(--transition-fast);
}

.brand-hero-pill:hover {
    background: rgba(255,255,255,0.2);
    border-color: rgba(255,255,255,0.5);
    text-decoration: none;
    color: #fff;
}

/* Identify chipset banner */
.brand-identify {
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-light);
    padding: var(--space-5) var(--space-6);
}

.brand-identify-inner {
    display: flex;
    align-items: center;
    gap: var(--space-5);
    flex-wrap: wrap;
}

.brand-identify-icon { font-size: 1.5rem; flex-shrink: 0; }

.brand-identify-inner strong {
    display: block;
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

.brand-identify-inner p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 0;
}

.brand-identify-inner .btn-primary {
    margin-left: auto;
    flex-shrink: 0;
    white-space: nowrap;
}

/* Main */
.brand-main { padding: var(--space-10) var(--space-6) var(--space-16); background: var(--bg-base); }

.brand-section {
    margin-bottom: var(--space-12);
    padding-bottom: var(--space-12);
    border-bottom: 1px solid var(--border-light);
}

.brand-section:last-of-type { border-bottom: none; }

/* Section header */
.brand-section-header {
    display: flex;
    align-items: flex-start;
    gap: var(--space-5);
    margin-bottom: var(--space-6);
}

.brand-section-emoji { font-size: 2.5rem; flex-shrink: 0; margin-top: 2px; }

.brand-section-name {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--brand-color, var(--color-primary));
    margin: 0 0 var(--space-3);
    letter-spacing: -0.02em;
}

.brand-section-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0 0 var(--space-4);
    line-height: 1.65;
    max-width: 680px;
}

/* Chipsets */
.brand-chipsets {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
    font-size: 0.82rem;
}

.brand-chipsets-label { color: var(--text-muted); font-weight: 600; }

.brand-chipset-tag {
    padding: 3px 10px;
    border: 1.5px solid;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
}

/* Popular */
.brand-popular {
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-3);
}

.brand-popular-label { font-weight: 600; color: var(--text-muted); margin-right: 4px; }

/* Note */
.brand-note {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
    font-size: 0.82rem;
    color: var(--text-secondary);
    background: rgba(0,87,255,0.05);
    border: 1px solid rgba(0,87,255,0.15);
    border-radius: var(--radius-md);
    padding: var(--space-3) var(--space-4);
    line-height: 1.55;
}

.brand-note svg {
    width: 14px;
    height: 14px;
    stroke: var(--color-primary);
    fill: none;
    flex-shrink: 0;
    margin-top: 1px;
}

/* Guide cards */
.brand-guides-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--space-4);
}

.brand-guide-card {
    display: flex;
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.brand-guide-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    text-decoration: none;
}

.brand-guide-card-bar {
    width: 4px;
    flex-shrink: 0;
    background: var(--brand-color, var(--color-primary));
}

.brand-guide-card-body { padding: var(--space-5); flex: 1; display: flex; flex-direction: column; gap: var(--space-2); }

.brand-guide-card-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-3);
}

.brand-guide-card-top h3 {
    font-family: var(--font-display);
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.3;
}

.brand-guide-diff {
    flex-shrink: 0;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border: 1.5px solid;
    border-radius: var(--radius-full);
    padding: 2px 8px;
}

.brand-guide-meta { font-size: 0.75rem; color: var(--text-muted); }

.brand-guide-cta {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-top: auto;
}

.brand-guide-cta svg {
    width: 13px;
    height: 13px;
    stroke: currentColor;
    fill: none;
    transition: transform var(--transition-fast);
}

.brand-guide-card:hover .brand-guide-cta svg { transform: translateX(4px); }

.brand-no-guides {
    font-size: 0.87rem;
    color: var(--text-muted);
    font-style: italic;
    padding: var(--space-4);
    background: var(--bg-subtle);
    border-radius: var(--radius-md);
}

/* CTA strip */
.brand-cta-strip {
    background: linear-gradient(135deg, #0a1433 0%, #003FBF 100%);
    padding: var(--space-16) var(--space-6);
    text-align: center;
}

.brand-cta-strip h2 {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 4vw, 2.2rem);
    font-weight: 800;
    color: #fff;
    margin: 0 0 var(--space-3);
}

.brand-cta-strip p {
    color: rgba(255,255,255,0.75);
    margin: 0 0 var(--space-6);
}

.btn-large {
    padding: 16px 32px;
    font-size: 1rem;
}

/* ============================================================
   FIRMWARE INDEX — fw-page
   ============================================================ */

.fw-page { min-height: 100vh; }

/* Hero */
.fw-hero {
    background: linear-gradient(135deg, #0d1f0d 0%, #1a4a1a 50%, #00C46A 100%);
    padding: var(--space-16) var(--space-6) var(--space-12);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.fw-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle, rgba(255,255,255,0.04) 1px, transparent 1px);
    background-size: 28px 28px;
    pointer-events: none;
}

.fw-hero-inner { position: relative; max-width: 700px; margin: 0 auto; }

.fw-eyebrow {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.6);
    margin: 0 0 var(--space-3);
}

.fw-hero-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    color: #fff;
    margin: 0 0 var(--space-4);
}

.fw-hero-sub {
    font-size: 1rem;
    color: rgba(255,255,255,0.78);
    margin: 0 0 var(--space-8);
    line-height: 1.65;
}

.fw-hero-pills {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    justify-content: center;
}

.fw-hero-pill {
    padding: 6px 14px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--radius-full);
    font-size: 0.82rem;
    font-weight: 600;
    color: #fff;
    text-decoration: none;
    transition: background var(--transition-fast);
}

.fw-hero-pill:hover { background: rgba(255,255,255,0.2); color: #fff; text-decoration: none; }

/* Safety */
.fw-safety {
    background: rgba(0,196,106,0.08);
    border-top: 1px solid rgba(0,196,106,0.25);
    border-bottom: 1px solid rgba(0,196,106,0.25);
    padding: var(--space-4) var(--space-6);
}

.fw-safety p { font-size: 0.87rem; color: var(--text-secondary); margin: 0; text-align: center; }

/* Main */
.fw-main { padding: var(--space-10) var(--space-6) var(--space-16); background: var(--bg-base); }

.fw-section {
    margin-bottom: var(--space-12);
    padding-bottom: var(--space-12);
    border-bottom: 1px solid var(--border-light);
}

.fw-section:last-of-type { border-bottom: none; }

/* Section header */
.fw-section-header {
    display: flex;
    align-items: flex-start;
    gap: var(--space-5);
    margin-bottom: var(--space-6);
}

.fw-emoji { font-size: 2rem; flex-shrink: 0; margin-top: 4px; }

.fw-section-title {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--fw-color, var(--color-primary));
    margin: 0 0 var(--space-3);
}

.fw-format {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.85rem;
    margin-bottom: var(--space-3);
}

.fw-format-label { color: var(--text-muted); font-weight: 600; flex-shrink: 0; }
.fw-format-value { color: var(--text-secondary); }

.fw-extensions { display: flex; flex-wrap: wrap; gap: var(--space-2); }

.fw-ext {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    background: var(--bg-subtle);
    color: var(--text-secondary);
    padding: 3px 9px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
}

.fw-guide-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 10px 18px;
    background: var(--fw-color, var(--color-primary));
    color: #fff;
    border-radius: var(--radius-full);
    font-size: 0.83rem;
    font-weight: 700;
    text-decoration: none;
    white-space: nowrap;
    flex-shrink: 0;
    margin-left: auto;
    transition: opacity var(--transition-fast);
}

.fw-guide-btn:hover { opacity: 0.85; text-decoration: none; color: #fff; }

.fw-guide-btn svg { width: 14px; height: 14px; stroke: currentColor; fill: none; }

/* Sources */
.fw-sources { margin-bottom: var(--space-5); }

.fw-sources-title {
    font-family: var(--font-display);
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin: 0 0 var(--space-4);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-size: 0.75rem;
}

.fw-sources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-4);
}

.fw-source-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: var(--space-5);
}

.fw-source-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
}

.fw-source-name {
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--text-primary);
}

.fw-source-link {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
    white-space: nowrap;
    flex-shrink: 0;
}

.fw-source-link:hover { text-decoration: underline; }

.fw-source-card p {
    font-size: 0.83rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.6;
}

/* Tip */
.fw-tip {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    background: rgba(0,196,106,0.06);
    border: 1px solid rgba(0,196,106,0.2);
    border-radius: var(--radius-md);
    padding: var(--space-4) var(--space-5);
}

.fw-tip svg {
    width: 16px;
    height: 16px;
    stroke: var(--color-success);
    fill: none;
    flex-shrink: 0;
    margin-top: 2px;
}

.fw-tip p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.6;
}

/* Checksum */
.fw-checksum {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    margin-top: var(--space-8);
}

.fw-checksum h2 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--text-primary);
    margin: 0 0 var(--space-3);
}

.fw-checksum > p {
    font-size: 0.87rem;
    color: var(--text-secondary);
    margin: 0 0 var(--space-6);
    line-height: 1.6;
}

.fw-checksum-methods {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-5);
}

@media (max-width: 640px) { .fw-checksum-methods { grid-template-columns: 1fr; } }

.fw-checksum-card {
    background: var(--bg-subtle);
    border-radius: var(--radius-md);
    padding: var(--space-5);
}

.fw-checksum-card h3 {
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 var(--space-3);
}

.fw-checksum-card code {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: var(--space-3) var(--space-4);
    color: var(--color-primary);
    margin-bottom: var(--space-3);
    overflow-x: auto;
}

.fw-checksum-card p {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.5;
}

/* Responsive */
@media (max-width: 768px) {
    .fw-section-header,
    .brand-section-header { flex-wrap: wrap; }
    .fw-guide-btn { margin-left: 0; }
    .brand-identify-inner .btn-primary { margin-left: 0; width: 100%; justify-content: center; }
    .brand-guides-grid { grid-template-columns: 1fr; }
}