:root {
    --primary: #1D1D1F;
    --secondary: #86868B;
    --accent: #FF6B00;
    --bg-light: #F5F5F7;
    --white: #FFFFFF;
    --radius: 12px;
    --container: 1100px;
    --measure-wide: 960px;
    --measure-text: 64ch;
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
    --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.02);
    --shadow-md: 0 10px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.1);
    --tier-foundation: #6B7280;
    --tier-brushless: #FF6B00;
    --tier-steering: #3B82F6;
    --tier-lights: #A855F7;
}

/* --- Lucide Icon Utilities --- */
.icon {
    width: 20px;
    height: 20px;
    vertical-align: -0.15em;
    stroke-width: 2;
    display: inline-block;
    flex-shrink: 0;
}

.icon-sm {
    width: 16px;
    height: 16px;
}

.icon-lg {
    width: 28px;
    height: 28px;
}

.icon-xl {
    width: 36px;
    height: 36px;
}

.tool-icon-svg {
    display: block;
    margin: 0 auto 0.75rem;
    color: var(--accent);
}

.mistake-icon-svg {
    color: #DC2626;
}

.chevron-icon {
    transition: transform 0.3s;
    color: var(--secondary);
    margin-left: auto;
}

.mistake-header.active .chevron-icon {
    transform: rotate(180deg);
}

.cal-icon {
    color: var(--accent);
}

.status-icon {
    vertical-align: -0.1em;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-main);
    color: var(--primary);
    line-height: 1.6;
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}

body.servo-mount-page {
    overflow-x: hidden;
}

/* --- Layout Utilities --- */
.container {
    width: 90%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 1rem;
}

.narrow {
    max-width: 800px;
}

.text-center {
    text-align: center;
}

section {
    padding: 5rem 0;
}

img,
video {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius);
}

/* --- Typography --- */
h1,
h2,
h3 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
    font-size: 1.25rem;
}

p {
    margin-bottom: 1rem;
    color: var(--secondary);
}

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

.section-intro {
    color: var(--secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto 2rem;
    text-align: center;
}

/* --- Progress Bar --- */
.progress-bar-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: rgba(0, 0, 0, 0.05);
    z-index: 1001;
}

.progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--tier-foundation), var(--tier-brushless), var(--tier-steering), var(--tier-lights));
    transition: width 0.1s linear;
}

/* --- Sticky Navigation --- */
.tier-nav {
    position: fixed;
    top: 3px;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    z-index: 1000;
    padding: 0;
    transform: translateY(-100%);
    transition: transform 0.3s ease;
}

.tier-nav.visible {
    transform: translateY(0);
}

.tier-nav-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0.6rem 1rem;
}

.tier-nav-pill {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.9rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--secondary);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.tier-nav-pill:hover {
    background: var(--bg-light);
    color: var(--primary);
}

.tier-nav-pill.active {
    background: var(--primary);
    color: var(--white);
}

.tier-nav-pill .pill-emoji {
    font-size: 0.9rem;
}

@media (max-width: 600px) {
    .tier-nav-pill span:not(.pill-emoji) {
        display: none;
    }

    .tier-nav-pill {
        padding: 0.4rem 0.6rem;
    }
}

/* --- Hero Section --- */
.hero-section {
    position: relative;
    padding: 10rem 0 6rem 0;
    overflow: hidden;
    background: linear-gradient(to right, rgba(0, 0, 0, 0.92) 30%, rgba(0, 0, 0, 0.7) 100%), url('../images/QUICKRUNWPMini24.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: var(--white);
}

.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.tool-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.tool-card p {
    font-size: 0.9rem;
    color: var(--secondary);
    margin-bottom: 1.5rem;
}

.tool-card .buy-btn {
    margin-top: auto;
    align-self: center;
}

.hero-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-content {
    color: var(--white);
}

.hero-content h1 {
    color: var(--white);
    text-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

.hero-content .sub-headline {
    color: rgba(255, 255, 255, 0.9);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    font-size: 1.05rem;
    line-height: 1.6;
}

.hero-visual video {
    width: auto;
    max-width: 100%;
    max-height: 575px;
    height: auto;
    display: block;
    margin: 0 auto;
    box-shadow: var(--shadow-lg);
}

.cta-button {
    display: inline-block;
    background: var(--accent);
    color: white;
    padding: 0.8em 2em;
    border-radius: 999px;
    font-weight: 600;
    margin-top: 1rem;
    transition: transform 0.2s, opacity 0.2s;
}

.cta-button:hover {
    transform: translateY(-2px);
    opacity: 0.9;
}

/* --- Tier Roadmap Cards (in Hero) --- */
.tier-roadmap {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-top: 3rem;
}

.tier-roadmap-card {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius);
    padding: 1.2rem 1rem;
    cursor: pointer;
    transition: all 0.3s;
    text-align: center;
}

.tier-roadmap-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-3px);
}

.tier-roadmap-card .tier-emoji {
    font-size: 1.5rem;
    display: block;
    margin-bottom: 0.5rem;
}

.tier-roadmap-card .tier-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: rgba(255, 255, 255, 0.5);
    display: block;
    margin-bottom: 0.2rem;
}

.tier-roadmap-card .tier-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--white);
}

@media (max-width: 600px) {
    .tier-roadmap {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 900px) {
    .tier-roadmap {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* --- Tier Section Headers --- */
.tier-header {
    text-align: center;
    margin-bottom: 3rem;
}

.tier-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    padding: 0.4rem 1rem;
    border-radius: 999px;
    margin-bottom: 1rem;
}

.tier-badge.foundation {
    background: rgba(107, 114, 128, 0.1);
    color: var(--tier-foundation);
}

.tier-badge.brushless {
    background: rgba(255, 107, 0, 0.1);
    color: var(--tier-brushless);
}

.tier-badge.steering {
    background: rgba(59, 130, 246, 0.1);
    color: var(--tier-steering);
}

.tier-badge.lights {
    background: rgba(168, 85, 247, 0.1);
    color: var(--tier-lights);
}

.tier-tagline {
    font-size: 1.05rem;
    color: var(--secondary);
    font-style: italic;
    margin-top: 0.5rem;
}

.tier-meta {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--secondary);
}

.tier-meta span {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

/* --- Why Section --- */
.why-section {
    background: var(--white);
}

.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 60px 1fr;
    gap: 1rem;
    margin-top: 3rem;
    align-items: center;
    width: 100%;
}

.transformation-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--secondary);
    opacity: 0.5;
    font-size: 2rem;
}

.visual-card {
    background: transparent !important;
    text-align: center;
    border: none;
    box-shadow: none;
}

.visual-card img {
    width: auto;
    max-width: 100%;
    max-height: 400px;
    object-fit: contain;
    margin: 0 auto 1rem auto;
    box-shadow: var(--shadow-md);
    background: transparent !important;
    border-radius: var(--radius);
    display: block;
}

.visual-card span {
    font-weight: 600;
    color: var(--secondary);
    background: white;
    padding: 0.4rem 1rem;
    border-radius: 999px;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    white-space: nowrap;
}

.visual-card .tap-note {
    font-weight: 400;
    color: var(--secondary);
}

.proof-block {
    display: grid;
    grid-template-columns: minmax(0, 360px) minmax(0, 1fr);
    gap: 2rem;
    align-items: center;
    max-width: var(--measure-wide);
    margin: 3rem auto 0;
    padding: 1.5rem;
    border: 1px solid #E5E7EB;
    border-radius: var(--radius);
    background: linear-gradient(180deg, #FBFBFC 0%, #F3F4F6 100%);
}

.proof-video {
    position: relative;
    display: block;
    width: 100%;
    padding: 0;
    border: none;
    border-radius: calc(var(--radius) - 2px);
    overflow: hidden;
    background: #111827;
    cursor: pointer;
}

.proof-video img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 0;
}

.proof-video::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.04), rgba(0, 0, 0, 0.35));
    pointer-events: none;
}

.proof-play {
    position: absolute;
    left: 1rem;
    bottom: 1rem;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 0.8rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.95);
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.proof-copy h3 {
    margin-bottom: 0.75rem;
}

.proof-copy p {
    margin-bottom: 0.75rem;
    color: var(--secondary);
}

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

.proof-note {
    margin-top: 1.25rem;
    padding: 1rem 1.1rem;
    border: 1px solid #E5E7EB;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.7);
}

.proof-note h4 {
    margin: 0 0 0.65rem 0;
    font-size: 0.95rem;
}

.proof-note p {
    margin-bottom: 0.65rem;
    font-size: 0.88rem;
}

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

.proof-note a:not(.buy-btn):not(.video-highlight-btn) {
    color: var(--accent);
    text-decoration: underline;
    font-weight: 600;
}

@media (max-width: 900px) {
    .proof-block {
        grid-template-columns: 1fr;
    }
}

/* --- Cost Section --- */
.cost-section {
    background: var(--bg-light);
}

.cost-card {
    background: white;
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    text-align: left;
    margin-top: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cost-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.cost-row.savings {
    color: #4CAF50;
}

.cost-divider {
    height: 1px;
    background: #eee;
    margin: 1rem 0;
}

.cost-total {
    display: flex;
    justify-content: space-between;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--primary);
}

.cost-footnote {
    font-size: 0.8rem;
    color: var(--secondary);
    margin-top: 1rem;
    line-height: 1.4;
}

/* --- Tool Cards (Tier 0) --- */
.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.tool-card {
    background: var(--white);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
}

.tool-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.tool-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.tool-card h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.tool-card p {
    font-size: 0.85rem;
    margin-bottom: 0;
}

.pro-tip {
    background: #FFFBEB;
    border: 1px solid #FDE68A;
    border-radius: var(--radius);
    padding: 1.25rem 1.5rem;
    margin-top: 2rem;
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
}

.pro-tip-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
    margin-top: 0.1rem;
}

.pro-tip p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--primary);
    line-height: 1.5;
}

/* --- Recipe Section --- */
.recipe-section {
    background: var(--white);
}

.subsection-title {
    border-bottom: 2px solid var(--bg-light);
    padding-bottom: 0.5rem;
    margin: 3rem 0 1.5rem;
    color: var(--primary);
}

.subsection-title.highlight {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.subsection-desc {
    color: var(--secondary);
    margin-bottom: 1.5rem;
}

.recipe-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    align-items: stretch;
}

.recipe-card {
    display: flex;
    flex-direction: column;
    background: var(--white);
    padding: 0 0 1.5rem 0;
    border-radius: var(--radius);
    height: 100%;
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.recipe-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.part-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    object-position: center;
    padding: 0;
    background: white;
    border: none;
    border-radius: 0;
    margin-bottom: 0.5rem;
    border-bottom: 1px solid var(--bg-light);
}

.recipe-card h3 {
    margin-bottom: 0.25rem;
    font-size: 1.1rem;
    text-align: center;
    padding: 0 1rem;
}

.part-name {
    font-size: 0.9rem;
    text-align: center;
    margin-bottom: 1.5rem;
    flex-grow: 1;
    padding: 0 1rem;
}

.buy-link {
    display: block;
    width: fit-content;
    margin: 0 auto;
    border: 1px solid var(--primary);
    padding: 0.6em 1.5em;
    border-radius: 999px;
    font-size: 0.9rem;
    font-weight: 500;
    text-align: center;
    transition: all 0.2s;
}

.buy-link:hover {
    background: var(--primary);
    color: white;
}

/* Highlighted Solder-Free Section */
.solder-free-section {
    background: #FFFAF5;
    border: 1px solid rgba(255, 107, 0, 0.2);
    border-radius: var(--radius);
    padding: 2rem;
    margin: 2rem 0;
}

.solder-free-section .recipe-card {
    background: transparent;
}

.solder-free-section .part-image {
    background: white;
}

/* --- Common Mistakes Section --- */
.mistakes-grid {
    display: grid;
    gap: 1rem;
    margin-top: 2rem;
}

.mistake-card {
    background: var(--white);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: var(--radius);
    overflow: hidden;
    transition: box-shadow 0.2s;
}

.mistake-card:hover {
    box-shadow: var(--shadow-md);
}

.mistake-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.25rem 1.5rem;
    cursor: pointer;
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    font-family: var(--font-main);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--primary);
}

.mistake-header .mistake-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
}

.mistake-header .chevron {
    margin-left: auto;
    transition: transform 0.3s;
    color: var(--secondary);
    font-size: 0.8rem;
}

.mistake-header.active .chevron {
    transform: rotate(180deg);
}

.mistake-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.mistake-body-inner {
    padding: 0 1.5rem 1.5rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.mistake-consequence,
.mistake-prevention {
    padding: 1rem;
    border-radius: 8px;
    font-size: 0.88rem;
    line-height: 1.5;
}

.mistake-consequence {
    background: #FEF2F2;
    border: 1px solid #FECACA;
}

.mistake-consequence strong {
    color: #DC2626;
    display: block;
    margin-bottom: 0.3rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.mistake-prevention {
    background: #F0FDF4;
    border: 1px solid #BBF7D0;
}

.mistake-prevention strong {
    color: #16A34A;
    display: block;
    margin-bottom: 0.3rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

@media (max-width: 600px) {
    .mistake-body-inner {
        grid-template-columns: 1fr;
    }
}

/* --- Step-by-Step Numbered Steps --- */
.steps-container {
    max-width: 700px;
    margin: 2rem auto;
    position: relative;
}

.step-item {
    display: flex;
    gap: 1.25rem;
    padding-bottom: 2rem;
    position: relative;
}

.step-item:last-child {
    padding-bottom: 0;
}

.step-number-col {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex-shrink: 0;
}

.step-number {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--accent);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.step-line {
    width: 2px;
    flex-grow: 1;
    background: #E5E7EB;
    margin-top: 0.5rem;
}

.step-item:last-child .step-line {
    display: none;
}

.step-content {
    padding-top: 0.35rem;
}

.step-content h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
    color: var(--primary);
}

.step-content p {
    font-size: 0.9rem;
    margin-bottom: 0;
    color: var(--secondary);
    line-height: 1.5;
}

.step-content .step-warning {
    background: #FEF3C7;
    border: 1px solid #FDE68A;
    border-radius: 8px;
    padding: 0.6rem 0.8rem;
    margin-top: 0.5rem;
    font-size: 0.82rem;
    color: #92400E;
    line-height: 1.4;
}

/* --- Radio Calibration Section --- */
.calibration-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.cal-card {
    background: var(--white);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: var(--radius);
    padding: 1.5rem;
    transition: transform 0.2s, box-shadow 0.2s;
}

.cal-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.cal-card h4 {
    font-size: 1rem;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.cal-card ol {
    margin-left: 1.25rem;
    color: var(--secondary);
    font-size: 0.88rem;
    line-height: 1.7;
}

.cal-card p {
    font-size: 0.88rem;
    margin-bottom: 0.5rem;
}

.shift-fix-card {
    grid-column: 1 / -1;
    background: linear-gradient(180deg, #FBFBFC 0%, #F3F4F6 100%);
}

.shift-fix-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(260px, 320px);
    gap: 1.5rem;
    align-items: center;
}

.shift-fix-copy h4 {
    margin-bottom: 0.75rem;
}

.shift-fix-copy p {
    margin-bottom: 0.75rem;
}

.shift-fix-copy a:not(.video-highlight-btn) {
    color: var(--accent);
    text-decoration: underline;
    font-weight: 600;
}

.shift-fix-list {
    margin: 0.85rem 0 1.1rem 1.1rem;
    color: var(--secondary);
    font-size: 0.88rem;
    line-height: 1.7;
}

.shift-radio-reference {
    margin: 1rem 0 1.1rem;
}

.shift-radio-reference .programming-image {
    max-width: 280px;
}

.shift-fix-cta {
    margin-top: 0.25rem;
}

.shift-fix-video {
    position: relative;
    display: block;
    width: 100%;
    padding: 0;
    border: none;
    border-radius: calc(var(--radius) - 2px);
    overflow: hidden;
    background: #111827;
}

.shift-fix-video-frame {
    position: relative;
}

.shift-fix-video::-webkit-media-controls {
    border-radius: calc(var(--radius) - 2px);
}

.shift-fix-video-frame img,
.shift-fix-video-frame video {
    width: 100%;
    display: block;
    border-radius: 0;
}

.shift-fix-video-frame::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.05), rgba(0, 0, 0, 0.35));
    pointer-events: none;
}

/* --- Channel Map Table --- */
.channel-map-container {
    max-width: 700px;
    margin: 2rem auto;
    overflow-x: auto;
}

.channel-map {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.channel-map th {
    background: var(--primary);
    color: var(--white);
    padding: 0.8rem 1rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.channel-map td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid #f0f0f0;
    color: var(--primary);
}

.channel-map tr:hover td {
    background: #FAFAFA;
}

.channel-map .ch-badge {
    display: inline-block;
    background: var(--bg-light);
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.8rem;
    color: var(--primary);
}

/* --- Feature Spotlight --- */
.feature-spotlight {
    margin: 3rem auto;
    text-align: center;
    max-width: var(--measure-text);
}

.feature-spotlight img {
    width: 100%;
    max-width: 320px;
    height: auto;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-md);
    border-radius: var(--radius);
}

.feature-spotlight h3 {
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.feature-spotlight p {
    color: var(--secondary);
}

/* --- Drag Brake Section (Side-by-Side) --- */
.drag-brake-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: center;
    max-width: var(--measure-wide);
    margin: 4rem auto;
    text-align: left;
}

.db-video-column {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #fafafa;
}

.db-video {
    width: auto;
    max-width: 100%;
    height: auto;
    max-height: 575px;
    display: block;
    margin: 0 auto;
    background: transparent;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
}

.db-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: var(--measure-text);
}

.db-content .buy-btn {
    align-self: flex-start;
    width: auto;
    font-size: 0.95rem;
    padding: 0.65rem 1.4rem;
    min-height: 40px;
}

.marketplace-action-row {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.45rem;
}

.marketplace-action-row .buy-btn {
    margin-top: 0;
}

.db-content h3 {
    color: var(--primary);
    margin: 0;
}

.db-content>p {
    color: var(--secondary);
    margin: 0;
}

.db-steps {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 1rem;
}

.db-step-card {
    background: var(--bg-light);
    padding: 1rem;
    border-radius: var(--radius);
    border: 1px solid #eee;
}

.db-step-card img {
    width: 100%;
    height: auto;
    margin-bottom: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 8px;
}

.db-step-card img.portrait {
    width: auto;
    max-height: 575px;
    margin: 0 auto 0.5rem auto;
    display: block;
    box-shadow: var(--shadow-lg);
    border: none;
}

.db-step-card h4 {
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
}

.db-step-card p {
    font-size: 0.85rem;
    color: var(--secondary);
    margin: 0;
}

.features-list {
    list-style: none;
    padding: 0;
    margin: 0.5rem 0 1.5rem 0;
    color: var(--secondary);
    font-size: 0.9rem;
}

.features-list li {
    margin-bottom: 0.5rem;
}

/* --- Community Builds --- */
.community-builds-section {
    background: var(--white);
    padding-top: 1rem;
}

.community-builds-shell {
    max-width: var(--measure-wide);
    margin: 0 auto;
    padding: 2rem;
    border: 1px solid #E5E7EB;
    border-radius: 24px;
    background: linear-gradient(180deg, #FFFFFF 0%, #F9FAFB 100%);
    box-shadow: var(--shadow-sm);
}

.community-build-kicker {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent);
    margin-bottom: 0.85rem;
}

.community-builds-copy {
    max-width: 64ch;
    margin-bottom: 1.75rem;
}

.community-builds-copy p + p {
    margin-top: 0.9rem;
}

.community-builds-copy p a:not(.community-build-action):not(.buy-btn):not(.video-highlight-btn) {
    color: var(--accent);
    text-decoration: underline;
    font-weight: 600;
}

.community-build-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    margin-top: 1.2rem;
}

.community-build-meta span {
    display: inline-flex;
    align-items: center;
    padding: 0.45rem 0.8rem;
    border-radius: 999px;
    background: #FFF3E8;
    color: #B45309;
    font-size: 0.82rem;
    font-weight: 600;
}

.community-build-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.9rem;
    margin-top: 1.35rem;
    align-items: center;
}

.community-build-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0.8rem 1.2rem;
    border-radius: 999px;
    background: #D32F2F;
    color: #fff !important;
    font-weight: 600;
    text-decoration: none;
    box-shadow: 0 4px 10px rgba(211, 47, 47, 0.24);
}

.community-build-link {
    color: var(--accent);
    font-weight: 600;
    text-decoration: underline;
}

.community-build-share {
    margin-top: 1.1rem;
    padding: 0.85rem 1rem;
    border: 1px solid #E5E7EB;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.72);
    color: var(--secondary);
    font-size: 0.92rem;
    line-height: 1.55;
}

.community-builds-gallery {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
    gap: 1rem;
    align-items: start;
}

.community-build-lead {
    margin: 0;
    padding: 0.9rem;
    border: 1px solid #E5E7EB;
    border-radius: 20px;
    background: var(--white);
    box-shadow: var(--shadow-sm);
}

.community-build-lead img,
.community-build-support img,
.community-build-thumbs img {
    width: 100%;
    height: auto;
    display: block;
}

.community-build-support {
    display: grid;
    gap: 1rem;
}

.community-build-support img {
    border: 1px solid #E5E7EB;
    border-radius: 18px;
    background: var(--white);
    padding: 0.45rem;
    box-shadow: var(--shadow-sm);
}

.community-build-thumbs {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.75rem;
}

.community-build-thumbs img {
    aspect-ratio: 4 / 3;
    object-fit: cover;
    border: 1px solid #E5E7EB;
    border-radius: 14px;
    background: var(--white);
    box-shadow: var(--shadow-sm);
}

@media (max-width: 900px) {
    .community-builds-shell {
        padding: 1.35rem;
    }

    .community-builds-gallery {
        grid-template-columns: 1fr;
    }

    .community-build-thumbs {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .community-build-thumbs {
        grid-template-columns: 1fr;
    }

    .image-modal-inner {
        width: 94vw;
        padding-top: 2.75rem;
        padding-bottom: 4.25rem;
    }

    .image-modal img,
    .image-modal video {
        max-width: 100%;
        max-height: 72vh;
    }

    .image-modal-nav {
        top: auto;
        bottom: 0;
        transform: none;
        width: 40px;
        height: 40px;
        font-size: 1.35rem;
        background: rgba(255, 255, 255, 0.14);
        border: 1px solid rgba(255, 255, 255, 0.16);
        backdrop-filter: blur(10px);
    }

    .image-modal-nav.prev {
        left: calc(50% - 52px);
    }

    .image-modal-nav.next {
        right: calc(50% - 52px);
    }

    .image-modal-close {
        display: none;
    }
}

/* --- Micro Sessions --- */
.sessions-section {
    background: var(--bg-light);
}

.sessions-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
    max-width: var(--measure-wide);
    margin: 0 auto;
}

.session-card {
    background: var(--white);
    border: 1px solid #E5E7EB;
    border-radius: var(--radius);
    overflow: hidden;
    text-align: left;
    padding: 0;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    font: inherit;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.session-card img {
    width: auto;
    height: auto;
    max-height: 90%;
    max-width: 90%;
    display: block;
    object-fit: contain;
    border-radius: 0;
}

.session-media {
    position: relative;
    aspect-ratio: 4 / 5;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #F5F5F7;
    overflow: hidden;
    border-bottom: 1px solid #E5E7EB;
}

.session-media::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: var(--poster);
    background-size: cover;
    background-position: center;
    filter: blur(16px);
    transform: scale(1.05);
    opacity: 0.25;
}

.session-media::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg,
        rgba(255, 255, 255, 0.45),
        rgba(245, 245, 247, 0.2),
        rgba(0, 0, 0, 0.18));
    opacity: 0.8;
}

.session-media img {
    position: relative;
    z-index: 1;
    border-radius: 10px;
    box-shadow: var(--shadow-md);
    background: #000;
}

.session-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.session-card:focus-visible {
    outline: 3px solid rgba(255, 107, 0, 0.35);
    outline-offset: 2px;
}

.session-meta {
    padding: 1rem 1.1rem 0.5rem;
}

.session-meta h4 {
    margin: 0 0 0.25rem 0;
    font-size: 1rem;
    color: var(--primary);
}

.session-meta p {
    margin: 0;
    font-size: 0.88rem;
    color: var(--secondary);
}

.session-play {
    align-self: flex-start;
    margin: 0.75rem 1.1rem 1rem;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent);
}

@media (max-width: 900px) {
    .sessions-grid {
        grid-template-columns: 1fr;
    }
}

/* --- ESC Programming --- */
.programming-section {
    background: var(--bg-light);
    text-align: center;
}

.programming-image {
    max-width: 400px;
    width: 100%;
    border-radius: var(--radius);
    margin: 0 auto;
    display: block;
    cursor: zoom-in;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.programming-image:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* --- Zoomable Images --- */
.zoomable {
    cursor: zoom-in;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.zoomable:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.light-kit-image {
    width: 100%;
    max-width: 360px;
    height: auto;
    display: block;
    margin: 0 auto;
    box-shadow: var(--shadow-md);
}

.light-controller-img {
    width: 100%;
    max-width: 320px;
    height: auto;
    display: block;
    margin: 0 auto;
    box-shadow: var(--shadow-md);
}

.image-hint {
    margin-top: 0.5rem;
    text-align: center;
    font-size: 0.8rem;
    color: var(--secondary);
}

.small-center {
    max-width: 220px;
    margin-left: auto;
    margin-right: auto;
}

/* --- Image Modal --- */
.image-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    backdrop-filter: blur(5px);
}

.image-modal.active {
    opacity: 1;
    pointer-events: auto;
}

.image-modal-inner {
    position: relative;
    width: min(98vw, 1600px);
    height: min(96vh, 1200px);
    display: flex;
    align-items: center;
    justify-content: center;
    touch-action: none;
    pointer-events: none;
}

.image-modal-close {
    display: none;
}

.image-modal-close:hover {
    background: rgba(0, 0, 0, 0.95);
}

.image-modal img {
    max-width: 96vw;
    max-height: 92vh;
    width: auto;
    height: auto;
    border-radius: var(--radius);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    cursor: default;
    transition: opacity 0.15s ease;
    background: #FFFFFF;
    object-fit: contain;
    touch-action: none;
    pointer-events: auto;
}

.image-modal video {
    max-width: 96vw;
    max-height: 92vh;
    width: auto;
    height: auto;
    border-radius: var(--radius);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    background: #000000;
    object-fit: contain;
    display: none;
    touch-action: none;
    pointer-events: auto;
}

.proof-white-bg {
    background: #FFFFFF;
}

.image-modal.loading img,
.image-modal.loading video {
    opacity: 0;
}

.image-modal-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border: none;
    border-radius: 999px;
    background: rgba(17, 24, 39, 0.8);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    line-height: 1;
    cursor: pointer;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.3);
    pointer-events: auto;
}

.image-modal-nav.prev {
    left: 1rem;
}

.image-modal-nav.next {
    right: 1rem;
}

.image-modal-nav:hover {
    background: rgba(0, 0, 0, 0.92);
}

/* --- Video Modal --- */
.video-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    backdrop-filter: blur(5px);
}

.video-modal.active {
    opacity: 1;
    pointer-events: auto;
}

.video-modal-inner {
    position: relative;
    max-width: 92vw;
    pointer-events: none;
}

.video-modal video {
    max-width: 92vw;
    max-height: 85vh;
    border-radius: var(--radius);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    background: #000;
    pointer-events: auto;
}

.video-modal-close {
    position: absolute;
    top: -14px;
    right: -14px;
    width: 34px;
    height: 34px;
    border-radius: 999px;
    border: none;
    background: #111;
    color: #fff;
    font-size: 18px;
    line-height: 1;
    cursor: pointer;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.35);
    pointer-events: auto;
}

.video-modal-close:hover {
    background: #000;
}

.settings-highlight {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
    max-width: 800px;
    margin: 2rem auto;
}

.setting-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--radius);
    text-align: center;
    border: 1px solid rgba(0, 0, 0, 0.05);
    box-shadow: var(--shadow-sm);
}

.setting-label {
    display: block;
    font-size: 0.85rem;
    color: var(--secondary);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.setting-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent);
}

.manual-accordion {
    max-width: 800px;
    margin: 2rem auto 0;
    text-align: left;
    background: var(--white);
    border-radius: var(--radius);
    padding: 0 1.5rem;
    box-shadow: var(--shadow-sm);
}

.manual-text {
    padding: 0 0 1.5rem 0;
    font-size: 0.95rem;
    color: var(--primary);
}

.manual-text h4 {
    margin-top: 1.5rem;
    font-size: 1rem;
    color: var(--primary);
}

.manual-text ul,
.manual-text ol {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
    color: var(--secondary);
}

.manual-text li {
    margin-bottom: 0.5rem;
}

.caption {
    margin-top: 0.5rem;
    font-size: 0.85rem;
    color: var(--secondary);
    opacity: 0.8;
}

.inside-manual {
    margin-bottom: 2rem;
    text-align: center;
}

.video-highlight-btn {
    display: table;
    margin: 1.5rem auto;
    background: #D32F2F;
    color: white;
    padding: 0.8em 2em;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: transform 0.2s, background 0.2s;
    text-decoration: none;
    text-align: center;
    box-shadow: 0 4px 10px rgba(211, 47, 47, 0.3);
}

.video-highlight-btn:hover {
    transform: translateY(-2px);
    background: #B71C1C;
}

/* --- Servo Upgrade (Tier 2) --- */
.servo-section {
    background: var(--white);
}

.servo-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    align-items: start;
    margin-top: 2rem;
}

.servo-details h4 {
    font-size: 1.05rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
    margin-top: 1.5rem;
}

.servo-details h4:first-child {
    margin-top: 0;
}

.servo-details p,
.servo-details li {
    font-size: 0.9rem;
    color: var(--secondary);
    line-height: 1.6;
}

.servo-details ul {
    list-style: none;
    padding: 0;
}

.servo-details ul li {
    padding: 0.3rem 0;
    padding-left: 1.2rem;
    position: relative;
}

.servo-details ul li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--tier-steering);
}

.servo-parts-stack,
.light-kit-options {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 0.9rem;
}

.part-icon {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    background: #F8FAFC;
    border: 1px solid #E5E7EB;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--tier-steering);
}

.servo-part-row .part-icon {
    color: var(--tier-steering);
}

.light-kit-row .part-icon {
    color: var(--tier-lights);
}

.servo-resources {
    background: var(--bg-light);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-top: 1.5rem;
}

.servo-resources h4 {
    margin-top: 0;
    margin-bottom: 0.75rem;
}

.servo-resources a {
    color: var(--tier-steering);
    text-decoration: underline;
    font-weight: 500;
}

.servo-resources p {
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}

@media (max-width: 768px) {
    .servo-grid {
        grid-template-columns: 1fr;
    }
}

/* --- Lights Section (Tier 3 - Coming Soon) --- */
.lights-section {
    background: var(--bg-light);
    position: relative;
}

.coming-soon-overlay {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: linear-gradient(135deg, var(--tier-lights), #7C3AED);
    color: white;
    padding: 0.35rem 1rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 1rem;
}

/* --- Stock Rig CTA --- */
.stock-rig-cta {
    text-align: center;
    background: #f9f9f9;
    padding: 2rem;
    border-radius: var(--radius);
    border: 2px dashed #ddd;
    margin-top: 2rem;
}

.stock-rig-cta h3 {
    margin-bottom: 0.5rem;
}

.stock-rig-cta p {
    margin-bottom: 1.5rem;
    color: var(--secondary);
}

/* --- FAQ/Accordion --- */
.faq-section {
    background: var(--white);
}

.story-section {
    background: var(--white);
    padding-top: 3.5rem;
    padding-bottom: 2rem;
}

.story-section h2 {
    margin-bottom: 1rem;
}

.story-section p {
    color: var(--secondary);
    margin-bottom: 1rem;
}

.community-callout {
    margin-top: 1.5rem;
    padding: 1rem 1.25rem;
    border: 1px solid #E5E7EB;
    border-radius: var(--radius);
    background: #FAFAFA;
}

.community-title {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--secondary);
    margin-bottom: 0.4rem;
}

.community-link {
    display: inline-block;
    margin-top: 0.25rem;
    color: var(--accent);
    font-weight: 600;
    text-decoration: underline;
}

.story-proof {
    margin-top: 1rem;
}

.story-proof-img {
    max-width: 520px;
    width: 100%;
    margin: 0 auto;
    display: block;
    box-shadow: var(--shadow-md);
}

.story-section a:not(.buy-btn):not(.video-highlight-btn) {
    color: var(--accent);
    text-decoration: underline;
    font-weight: 600;
}

.guide-back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    margin-bottom: 1.5rem;
}

.watch-hero {
    padding: 4rem 0 3rem;
    background:
        radial-gradient(circle at top left, rgba(255, 107, 0, 0.08), transparent 40%),
        linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
}

.watch-intro {
    max-width: 760px;
}

.watch-intro p {
    max-width: var(--measure-text);
}

.watch-block {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 2rem;
    align-items: start;
    max-width: var(--measure-wide);
    margin: 0 auto;
}

.watch-video-card {
    background: linear-gradient(180deg, #FBFBFC 0%, #F3F4F6 100%);
    border: 1px solid #E5E7EB;
    border-radius: var(--radius);
    padding: 1rem;
    box-shadow: var(--shadow-sm);
}

.watch-video-card video {
    width: 100%;
    border-radius: calc(var(--radius) - 4px);
    background: #111827;
}

.watch-video-frame {
    position: relative;
}

.video-guidance-overlay {
    position: absolute;
    left: 0.9rem;
    right: 0.9rem;
    bottom: 4rem;
    display: inline-flex;
    align-items: center;
    max-width: min(82%, 420px);
    padding: 0.65rem 0.85rem;
    border-radius: 12px;
    background: rgba(17, 24, 39, 0.78);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: #FFFFFF;
    font-size: 0.88rem;
    line-height: 1.4;
    box-shadow: var(--shadow-md);
    opacity: 0;
    transform: translateY(6px);
    pointer-events: none;
    transition: opacity 0.22s ease, transform 0.22s ease;
}

.video-guidance-overlay.active {
    opacity: 1;
    transform: translateY(0);
}

.watch-video-note {
    margin-top: 0.75rem;
    font-size: 0.85rem;
    color: var(--secondary);
}

.video-proof-points,
.chapter-card,
.youtube-chapters-card {
    margin-top: 1rem;
    padding: 1rem 1.05rem;
    border: 1px solid #E5E7EB;
    border-radius: 12px;
    background: #FFFFFF;
}

.video-proof-points h3,
.chapter-card h3 {
    font-size: 0.95rem;
    margin-bottom: 0.75rem;
}

.chapter-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.65rem;
}

.chapter-grid-proof {
    grid-template-columns: 1fr;
}

.chapter-jump {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.15rem;
    width: 100%;
    padding: 0.75rem 0.85rem;
    border: 1px solid #E5E7EB;
    border-radius: 10px;
    background: #FAFAFA;
    text-align: left;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.chapter-jump:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
    border-color: #F5B27C;
}

.chapter-jump:focus-visible {
    outline: 2px solid rgba(255, 107, 0, 0.35);
    outline-offset: 2px;
}

.chapter-time {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--accent);
}

.chapter-label {
    font-size: 0.9rem;
    color: var(--primary);
    line-height: 1.35;
}

.youtube-chapters-text {
    margin: 0;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.84rem;
    line-height: 1.75;
    white-space: pre-wrap;
    color: var(--primary);
}

.toc-card {
    margin-top: 1.5rem;
    padding: 1rem 1.2rem;
    border: 1px solid #E5E7EB;
    border-radius: var(--radius);
    background: #FAFAFA;
}

.toc-card h3 {
    font-size: 0.95rem;
    margin-bottom: 0.6rem;
}

.toc-card ul {
    margin-left: 1rem;
    color: var(--secondary);
    font-size: 0.92rem;
    line-height: 1.8;
}

.toc-card a {
    color: var(--accent);
    text-decoration: underline;
    font-weight: 600;
}

.watch-hero-copy a,
.watch-section p a,
.watch-section li a {
    color: var(--accent);
    text-decoration: underline;
    font-weight: 600;
}

.guide-inline-link {
    color: var(--accent) !important;
    text-decoration: underline !important;
    font-weight: 600;
}

.watch-section {
    max-width: var(--measure-wide);
    margin: 0 auto;
}

.watch-section + .watch-section {
    margin-top: 3rem;
}

/* --- FCX24M Servo Mount Landing Page --- */
.servo-mount-page {
    background: #F8FAFC;
}

.section-head-block {
    max-width: 62ch;
    margin-bottom: 2rem;
}

.section-head-block h2 {
    margin-bottom: 0.75rem;
}

.servo-mount-page .section-intro {
    max-width: 62ch;
    margin: 0 0 2rem;
    text-align: left;
}

.servo-guide-toplinks,
.servo-guide-footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.9rem 1.1rem;
}

.servo-guide-toplinks {
    margin-bottom: 1.5rem;
}

.servo-guide-toplinks a:not(.servo-guide-pill),
.servo-guide-footer-links a:not(.servo-guide-pill) {
    color: var(--accent);
    text-decoration: underline;
    font-weight: 600;
}

.servo-guide-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.65rem 0.95rem;
    border-radius: 999px;
    border: 1px solid #E5E7EB;
    background: rgba(255, 255, 255, 0.94);
    text-decoration: none;
    color: #334155;
    box-shadow: var(--shadow-sm);
}

.servo-guide-pill:hover {
    color: var(--accent);
    border-color: #FED7AA;
    background: #FFFFFF;
}

.servo-mount-hero {
    padding: 4rem 0 3rem;
    background:
        radial-gradient(circle at top left, rgba(255, 107, 0, 0.08), transparent 40%),
        linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
}

.servo-mount-hero-grid,
.servo-mount-solution-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
    gap: 2.5rem;
    align-items: center;
}

.servo-mount-kicker {
    display: inline-flex;
    align-items: center;
    padding: 0.42rem 0.8rem;
    border-radius: 999px;
    background: #FFF3E8;
    color: #B45309;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.servo-mount-copy h1 {
    margin-top: 1rem;
    margin-bottom: 1rem;
}

.servo-mount-copy {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.servo-mount-subhead {
    max-width: 58ch;
    color: var(--secondary);
    font-size: 1rem;
    line-height: 1.7;
}

.servo-proof-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-top: 1.5rem;
}

.servo-proof-pill {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 0.8rem;
    border-radius: 999px;
    background: #FFFFFF;
    border: 1px solid #E5E7EB;
    color: #475569;
    font-size: 0.82rem;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

.servo-cta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.9rem;
    margin-top: 1.5rem;
    align-items: stretch;
}

.servo-cta-row .buy-btn,
.servo-cta-row .video-highlight-btn {
    margin: 0;
    min-height: 46px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}


.marketplace-buyline {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    margin-top: 0.7rem;
    color: var(--secondary);
    font-size: 0.84rem;
    font-weight: 600;
    line-height: 1;
    min-height: 32px;
}

.marketplace-buyline .marketplace-badge {
    align-self: center;
    height: 32px;
}

.marketplace-buyline > span:last-child {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    line-height: 1;
    white-space: nowrap;
    height: 32px;
}

.availability-dot {
    width: 10px;
    height: 10px;
    min-width: 10px;
    min-height: 10px;
    border-radius: 50%;
    background: #22C55E;
    box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.14);
    flex: 0 0 10px;
    display: block;
    align-self: center;
}

.marketplace-buyline--bundle {
    margin-top: 0.65rem;
}

.servo-mount-hero-visual,
.servo-inline-proof,
.servo-mount-solution-media,
.servo-mount-demo-video {
    margin: 0;
    max-width: 460px;
    margin-left: auto;
}

.servo-mount-hero-visual,
.servo-inline-proof,
.servo-mount-solution-media,
.servo-mount-demo-video {
    padding: 1rem;
    border-radius: 24px;
    background: #FFFFFF;
    border: 1px solid #E5E7EB;
    box-shadow: var(--shadow-md);
}

.servo-mount-hero-visual img,
.servo-inline-proof img,
.servo-mount-solution-media img,
.servo-mount-demo-video video {
    width: 100%;
    height: auto;
    display: block;
    max-height: 560px;
    object-fit: cover;
}

.servo-mount-hero-visual figcaption,
.servo-inline-proof figcaption,
.servo-mount-demo-video figcaption {
    margin-top: 0.85rem;
    color: var(--secondary);
    font-size: 0.9rem;
    line-height: 1.55;
}


.servo-mount-hero-visual {
    max-width: 560px;
    margin-left: auto;
}

.servo-mount-solution-media {
    max-width: 560px;
    margin-left: auto;
}

.servo-inline-proof {
    max-width: 760px;
    margin: 1.5rem auto 0;
}

.servo-hero-thumb-strip {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.75rem;
    margin-top: 0.85rem;
}

.servo-hero-thumb-card,
.servo-hero-video-jump {
    width: 100%;
    margin: 0;
    height: 112px;
    display: block;
    border-radius: 14px;
    border: 1px solid #E5E7EB;
    background: #FFFFFF;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.servo-hero-thumb-card img {
    width: 100%;
    height: 86px;
    object-fit: cover;
    display: block;
    border: 0;
    border-radius: 0;
    box-shadow: none;
}

.servo-hero-thumb-card figcaption {
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 0.4rem;
    color: var(--secondary);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    text-align: center;
    background: #FFFFFF;
}

.servo-hero-video-jump {
    position: relative;
    overflow: hidden;
    text-decoration: none;
    height: 112px;
    padding: 0;
    cursor: pointer;
    pointer-events: auto;
}

.servo-hero-video-jump img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border: 0;
    border-radius: 0;
    box-shadow: none;
}

.servo-hero-video-jump span {
    position: absolute;
    left: 0.5rem;
    right: 0.5rem;
    bottom: 0.45rem;
    padding: 0.28rem 0.45rem;
    border-radius: 999px;
    background: rgba(17, 24, 39, 0.72);
    color: #FFFFFF;
    font-size: 0.72rem;
    font-weight: 700;
    text-align: center;
}

.servo-hero-thumb-card,
.servo-hero-video-jump {
    scroll-snap-align: start;
}

.servo-mount-problem-section,
.servo-mount-story-section,
.servo-mount-solution-section,
.servo-mount-demo-section,
.servo-mount-drive-section,
.servo-mount-paths-section,
.servo-mount-compare-section,
.servo-mount-parts-section,
.servo-mount-proof-section,
.servo-cta-section {
    padding: 4rem 0;
}

.servo-mount-demo-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
    gap: 1.25rem;
    align-items: center;
}


.servo-mount-story-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
    gap: 1.25rem;
    align-items: center;
}

.servo-mount-story-proof {
    margin: 0;
    padding: 1rem;
    border-radius: 22px;
    background: #FFFFFF;
    border: 1px solid #E5E7EB;
    box-shadow: var(--shadow-sm);
}

.servo-mount-story-proof img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 16px;
    border: 1px solid #E5E7EB;
}

.servo-mount-story-proof figcaption {
    margin-top: 0.8rem;
    color: var(--secondary);
    font-size: 0.9rem;
    line-height: 1.55;
}

.mount-problem-grid,
.mount-path-grid,
.servo-bundle-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
}

.mount-path-grid,
.servo-bundle-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.servo-bundle-grid {
    align-items: start;
}

.mount-problem-card,
.mount-path-card,
.servo-bundle-card {
    background: #FFFFFF;
    border: 1px solid #E5E7EB;
    border-radius: 22px;
    padding: 1.35rem;
    box-shadow: var(--shadow-sm);
}

.servo-bundle-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.servo-bundle-card > * {
    width: 100%;
}

.mount-problem-card h3,
.mount-path-card h3,
.servo-bundle-card h3 {
    margin-bottom: 0.65rem;
}

.mount-problem-card p,
.mount-path-card p,
.servo-bundle-card p {
    color: var(--secondary);
    font-size: 0.92rem;
    line-height: 1.6;
}

.mount-path-card--accent,
.servo-bundle-card--accent {
    background: linear-gradient(180deg, #FFFFFF 0%, #FFF7ED 100%);
    border-color: #FED7AA;
}

.mount-path-label {
    display: inline-flex;
    align-items: center;
    padding: 0.32rem 0.7rem;
    border-radius: 999px;
    background: #F1F5F9;
    color: #475569;
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.mount-path-list {
    list-style: none;
    padding: 0;
    margin: 1rem 0;
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
}

.mount-path-list li {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    color: var(--secondary);
    font-size: 0.9rem;
}

.mount-path-list li span {
    flex-shrink: 0;
    font-weight: 700;
    color: var(--primary);
}

.mount-path-note {
    margin-top: 1rem;
}

.jr-receiver-proof {
    margin-top: 1.5rem;
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
    gap: 1.25rem;
    align-items: center;
    padding: 1.2rem;
    border-radius: 22px;
    border: 1px solid #E5E7EB;
    background: #FFFFFF;
    box-shadow: var(--shadow-sm);
}

.jr-receiver-proof-copy p + p {
    margin-top: 0.8rem;
}

.jr-receiver-proof-copy a {
    color: var(--accent);
    text-decoration: underline;
    font-weight: 600;
}

.jr-receiver-proof-figure {
    margin: 0;
}

.jr-receiver-proof-figure img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 18px;
    border: 1px solid #E5E7EB;
}

.jr-receiver-proof-figure figcaption {
    margin-top: 0.75rem;
    color: var(--secondary);
    font-size: 0.88rem;
    line-height: 1.5;
}

.fit-badge {
    display: inline-flex;
    align-items: center;
    margin-left: 0.45rem;
    padding: 0.22rem 0.55rem;
    border-radius: 999px;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    vertical-align: middle;
}

.fit-badge.required {
    background: #ECFDF3;
    color: #027A48;
}

.fit-badge.required-stock {
    background: #EFF6FF;
    color: #1D4ED8;
}

.fit-badge.optional {
    background: #FFF7ED;
    color: #C2410C;
}

.servo-page-parts-list .part-row {
    align-items: flex-start;
}

.servo-page-parts-list .part-row .buy-btn {
    align-self: center;
    min-width: 86px;
}

.servo-product-details-section {
    padding: 4rem 0;
    background:
        radial-gradient(circle at top right, rgba(255, 107, 0, 0.05), transparent 36%),
        linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
}

.servo-product-details-card {
    display: grid;
    grid-template-columns: minmax(280px, 0.78fr) minmax(0, 1.22fr);
    gap: 2rem;
    align-items: start;
    padding: 1.35rem;
    border-radius: 28px;
    background: #FFFFFF;
    border: 1px solid #E5E7EB;
    box-shadow: 0 30px 80px rgba(15, 23, 42, 0.08);
}

.servo-product-details-media {
    margin: 0;
    padding: 1rem;
    border-radius: 22px;
    background: #F8FAFC;
    border: 1px solid #E5E7EB;
}

.servo-product-details-media img {
    width: 100%;
    display: block;
    border-radius: 18px;
    background: #FFFFFF;
    border: 1px solid #E5E7EB;
}

.servo-product-details-media figcaption {
    margin-top: 0.8rem;
    color: var(--secondary);
    font-size: 0.86rem;
    line-height: 1.55;
}

.servo-product-kicker {
    margin: 0 0 0.55rem;
    color: #B45309;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.servo-product-details-copy h3 {
    margin: 0;
    font-size: clamp(1.55rem, 1.2rem + 1vw, 2.15rem);
    line-height: 1.15;
}

.servo-product-summary {
    margin: 1rem 0 0;
    max-width: 58ch;
    color: var(--secondary);
    line-height: 1.7;
}

.servo-product-spec-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.9rem;
    margin-top: 1.35rem;
}

.servo-product-spec {
    padding: 1rem 1.05rem;
    border-radius: 18px;
    background: #F8FAFC;
    border: 1px solid #E5E7EB;
}

.servo-product-spec-label {
    display: block;
    margin-bottom: 0.35rem;
    color: #64748B;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.servo-product-spec strong {
    display: block;
    color: var(--primary);
    font-size: 0.96rem;
    line-height: 1.5;
}

.servo-product-feature-list {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.9rem;
    margin-top: 1.15rem;
}

.servo-product-feature {
    padding: 1rem 1.05rem;
    border-radius: 18px;
    background: #FFF7ED;
    border: 1px solid #FED7AA;
}

.servo-product-feature strong {
    display: block;
    margin-bottom: 0.38rem;
    color: var(--primary);
    font-size: 0.92rem;
}

.servo-product-feature span {
    display: block;
    color: var(--secondary);
    font-size: 0.85rem;
    line-height: 1.6;
}

.servo-product-notes {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.9rem;
    margin-top: 1.15rem;
}

.servo-product-note {
    padding: 1rem 1.05rem;
    border-radius: 18px;
    background: #FFFFFF;
    border: 1px solid #E5E7EB;
}

.servo-product-note h4 {
    margin: 0 0 0.45rem;
    font-size: 0.92rem;
}

.servo-product-note p {
    margin: 0;
    color: var(--secondary);
    font-size: 0.86rem;
    line-height: 1.65;
}

.servo-proof-card-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.servo-proof-card {
    margin: 0;
    padding: 1rem;
    border-radius: 22px;
    background: #FFFFFF;
    border: 1px solid #E5E7EB;
    box-shadow: var(--shadow-sm);
}

.servo-proof-card img {
    width: 100%;
    display: block;
    border-radius: 16px;
    border: 1px solid #E5E7EB;
    background: #FFFFFF;
}

.servo-proof-card figcaption {
    margin-top: 0.8rem;
    color: var(--secondary);
    font-size: 0.9rem;
    line-height: 1.55;
}


.servo-compare-table-wrap {
    overflow-x: auto;
    border-radius: 22px;
    border: 1px solid #E5E7EB;
    background: #FFFFFF;
    box-shadow: var(--shadow-sm);
}

.servo-compare-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 760px;
}

.servo-compare-table th,
.servo-compare-table td {
    padding: 1rem;
    border-bottom: 1px solid #E5E7EB;
    text-align: left;
    vertical-align: top;
    font-size: 0.92rem;
    line-height: 1.55;
}

.servo-compare-table th {
    background: #F8FAFC;
    color: var(--primary);
    font-size: 0.82rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.servo-compare-table tbody tr:last-child td {
    border-bottom: 0;
}

.table-meta {
    display: inline-block;
    margin-top: 0.2rem;
    color: var(--secondary);
    font-size: 0.8rem;
    line-height: 1.4;
}

.servo-compare-table-highlight td {
    background: #FFF7ED;
}

.servo-compare-note {
    margin: 0;
    padding: 0.95rem 1rem 1rem;
    color: var(--secondary);
    font-size: 0.84rem;
    line-height: 1.6;
    border-top: 1px solid #E5E7EB;
    background: #FFFBF5;
}

.mount-proof-list {
    list-style: none;
    padding: 0;
    margin: 1.2rem 0 0;
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
}

.mount-proof-list li {
    position: relative;
    padding-left: 1.4rem;
    color: var(--secondary);
}

.mount-proof-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-size: 1.1rem;
    line-height: 1;
}

.servo-bundle-actions {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1rem;
    width: 100%;
}

.servo-bundle-actions .buy-btn {
    width: 100%;
    min-width: 0;
    min-height: 44px;
    justify-content: center;
    touch-action: manipulation;
    -webkit-tap-highlight-color: rgba(255, 107, 0, 0.18);
}

.servo-guide-footer-links {
    margin-top: 2rem;
}

.servo-guide-footer-actions {
    gap: 0.85rem;
}

.servo-guide-footer-actions .servo-guide-pill {
    margin: 0;
    min-height: 46px;
    justify-content: center;
}

@media (max-width: 980px) {
    .servo-mount-hero-grid,
    .servo-mount-story-grid,
    .servo-mount-solution-grid,
    .servo-mount-demo-grid,
    .mount-path-grid,
    .servo-bundle-grid,
    .mount-problem-grid,
    .jr-receiver-proof,
    .servo-product-details-card,
    .servo-product-feature-list,
    .servo-product-notes,
    .servo-proof-card-grid {
        grid-template-columns: 1fr;
    }

    .servo-product-spec-grid {
        grid-template-columns: 1fr;
    }

    .servo-mount-hero-visual,
    .servo-mount-solution-media,
    .servo-inline-proof {
        max-width: none;
    }

    .servo-hero-thumb-strip {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .servo-mount-page .container {
        width: 100%;
        padding-left: 0.75rem;
        padding-right: 0.75rem;
    }

    .servo-mount-hero,
    .servo-mount-problem-section,
    .servo-mount-story-section,
    .servo-mount-solution-section,
    .servo-mount-demo-section,
    .servo-mount-drive-section,
    .servo-mount-paths-section,
    .servo-mount-compare-section,
    .servo-mount-parts-section,
    .servo-product-details-section,
    .servo-mount-proof-section,
    .servo-cta-section {
        padding: 3rem 0;
    }

    .servo-guide-toplinks {
        display: block;
        margin-bottom: 0.7rem;
    }

    .servo-guide-toplinks a {
        width: auto;
    }

    .section-head-block {
        max-width: none;
        margin-bottom: 1.35rem;
    }

    .servo-guide-toplinks .servo-guide-pill {
        display: inline-flex;
        width: auto;
        max-width: 220px;
        justify-content: flex-start;
        text-align: left;
        white-space: normal;
        line-height: 1.2;
        padding: 0.42rem 0.6rem;
        border-radius: 12px;
        font-size: 0.66rem;
        font-weight: 800;
        letter-spacing: 0.01em;
        box-shadow: none;
    }

    .servo-mount-copy h1,
    .section-head-block h2 {
        font-size: 1.38rem;
        line-height: 1.12;
    }

    .servo-mount-hero-grid {
        gap: 0.85rem;
    }

    .servo-mount-subhead {
        max-width: none;
        font-size: 0.88rem;
        line-height: 1.48;
    }

    .servo-proof-pills {
        display: grid;
        grid-template-columns: 1fr;
        gap: 0.5rem;
        margin-top: 0.9rem;
        width: 100%;
    }

    .servo-proof-pill {
        min-height: 0;
        justify-content: flex-start;
        text-align: left;
        padding: 0.62rem 0.72rem;
        border-radius: 14px;
        font-size: 0.74rem;
        line-height: 1.25;
        box-shadow: none;
    }

    .servo-mount-hero-visual {
        width: 100%;
        max-width: 100%;
        margin: 0;
        padding: 0.6rem;
        border-radius: 16px;
        overflow: hidden;
    }

    .servo-mount-hero-visual > img {
        display: block;
        width: 100%;
        height: 180px;
        max-height: none;
        object-fit: contain;
        background: #FFFFFF;
        border-radius: 12px;
    }

    .servo-hero-thumb-strip {
        display: flex;
        gap: 0.45rem;
        padding: 0.05rem 0.1rem 0.15rem 0;
        margin-top: 0.5rem;
        overflow-x: auto;
        overflow-y: hidden;
        scroll-snap-type: x proximity;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        align-items: stretch;
    }

    .servo-hero-thumb-strip::-webkit-scrollbar {
        display: none;
    }

    .servo-hero-thumb-card,
    .servo-hero-video-jump {
        width: 72px;
        min-width: 72px;
        max-width: 72px;
        min-height: 78px;
        display: flex;
        flex-direction: column;
        flex: 0 0 72px;
        border-radius: 10px;
        box-shadow: none;
    }

    .servo-hero-thumb-card img,
    .servo-hero-video-jump img {
        height: 46px;
        object-fit: cover;
        background: #FFFFFF;
    }

    .servo-hero-thumb-card figcaption {
        height: auto;
        min-height: 24px;
        justify-content: flex-start;
        text-align: left;
        padding: 0.22rem 0.3rem 0.24rem;
        line-height: 1.1;
        font-size: 0.5rem;
    }

    .servo-hero-video-jump span {
        position: static;
        display: flex;
        align-items: flex-start;
        justify-content: flex-start;
        min-height: 24px;
        padding: 0.22rem 0.3rem 0.24rem;
        border-radius: 0;
        background: #FFFFFF;
        color: var(--secondary);
        font-size: 0.5rem;
        line-height: 1.1;
        text-align: left;
    }

    .servo-proof-card-grid {
        grid-template-columns: 1fr;
    }

    .mount-path-list li {
        flex-direction: column;
        gap: 0.2rem;
    }

    .marketplace-buyline {
        margin-top: 0.55rem;
        margin-bottom: 0.05rem;
        font-size: 0.78rem;
    }

    .servo-cta-row {
        margin-top: 0.25rem;
        gap: 0.6rem;
    }

    .servo-cta-row .buy-btn,
    .servo-cta-row .video-highlight-btn,
    .servo-bundle-actions .buy-btn,
    .servo-guide-footer-actions .servo-guide-pill {
        width: 100%;
    }

    .servo-guide-footer-actions .servo-guide-pill {
        justify-content: flex-start;
        text-align: left;
        line-height: 1.4;
        padding: 0.85rem 0.95rem;
        border-radius: 18px;
        font-size: 0.8rem;
    }

    .image-modal-inner {
        width: 96vw;
        height: 88vh;
        padding: 1rem 0 4rem;
    }

    .image-modal img,
    .image-modal video {
        max-width: 92vw;
        max-height: 78vh;
    }
}

.watch-section h2 {
    margin-bottom: 0.85rem;
}

.watch-section p {
    max-width: var(--measure-text);
}

.watch-list,
.watch-steps {
    margin-left: 1.2rem;
    color: var(--secondary);
    line-height: 1.8;
}

.watch-steps li + li,
.watch-list li + li {
    margin-top: 0.35rem;
}

.watch-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
    margin-top: 1.2rem;
}

.watch-card {
    padding: 1.1rem;
    border: 1px solid #E5E7EB;
    border-radius: var(--radius);
    background: #FAFAFA;
}

.watch-card h3 {
    font-size: 1rem;
    margin-bottom: 0.4rem;
}

.watch-card p {
    font-size: 0.9rem;
    margin-bottom: 0;
}

.watch-note {
    margin-top: 1rem;
    padding: 1rem 1.1rem;
    border-left: 3px solid var(--accent);
    background: #FFF7ED;
    border-radius: 0 10px 10px 0;
}

.watch-note p {
    margin: 0;
    color: var(--primary);
}

.dumborc-watch-note {
    margin-bottom: 3rem;
}

.dumborc-note-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(220px, 320px);
    gap: 1.2rem;
    align-items: start;
    margin-top: 1.1rem;
}

.dumborc-note-figure {
    margin: 0;
}

.watch-inline-note {
    margin-top: 1rem;
    color: var(--secondary);
}

.watch-inline-note a {
    color: var(--accent);
    text-decoration: underline;
    font-weight: 600;
}

.article-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.9rem;
    margin-top: 1.2rem;
}

.article-links a {
    color: var(--accent);
    text-decoration: underline;
    font-weight: 600;
}

.watch-parts-list {
    max-width: 760px;
    margin-top: 1.2rem;
}

.servo-buy-row img {
    width: 72px;
    height: 72px;
    object-fit: contain;
    background: #fff;
}

.accordion-item {
    border-bottom: 1px solid #ddd;
}

.accordion-header {
    width: 100%;
    padding: 1.5rem 0;
    background: none;
    border: none;
    text-align: left;
    font-weight: 600;
    font-size: 1.1rem;
    font-family: var(--font-main);
    display: flex;
    justify-content: space-between;
    cursor: pointer;
    color: var(--primary);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s;
}

/* --- Footer --- */
footer {
    padding: 3rem 0;
    text-align: center;
    border-top: 1px solid var(--bg-light);
    font-size: 0.9rem;
    color: var(--secondary);
}

footer .disclaimer {
    font-size: 0.75rem;
    color: #999;
    margin-top: 0.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.links a {
    margin: 0 0.5rem;
    text-decoration: underline;
}

/* --- Animations --- */
.fade-enter {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in {
    opacity: 1;
    transform: translateY(0);
}

/* --- Responsive Breakpoints --- */
@media (max-width: 900px) {
    .hero-section {
        padding-top: 7rem;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .hero-content {
        order: 2;
    }

    .hero-visual {
        order: 1;
    }

    .comparison-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .transformation-icon {
        transform: rotate(90deg);
        margin: 1rem 0;
    }

    .shift-fix-layout,
    .watch-block,
    .watch-grid,
    .dumborc-note-grid {
        grid-template-columns: 1fr;
    }

    .chapter-grid {
        grid-template-columns: 1fr;
    }

    .video-guidance-overlay {
        left: 0.7rem;
        right: 0.7rem;
        bottom: 4.2rem;
        max-width: none;
        font-size: 0.82rem;
    }
}

@media (max-width: 768px) {
    .drag-brake-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .db-video {
        max-height: 500px;
    }

    .calibration-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    section {
        padding: 3.5rem 0;
    }
}

/* Scrollbar styling for tables */
.channel-map-container::-webkit-scrollbar {
    height: 6px;
}

.channel-map-container::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 3px;
}

.channel-map-container::-webkit-scrollbar-thumb {
    background: #ccc;
    border-radius: 3px;
}

/* --- Compact Parts List --- */
.parts-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.part-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--white);
    border: 1px solid #E5E7EB;
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    transition: box-shadow 0.2s;
}

.part-row:hover {
    box-shadow: var(--shadow-md);
}

.part-row > img {
    width: 52px;
    height: 52px;
    object-fit: cover;
    border-radius: 8px;
    flex-shrink: 0;
}

.part-row .part-icon {
    width: 52px;
    height: 52px;
}

.part-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.part-info h4 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.15rem;
    color: var(--primary);
}

.part-info .part-desc {
    font-size: 0.78rem;
    color: var(--secondary);
    line-height: 1.3;
}

.marketplace-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    width: 76px;
    max-width: 76px;
    min-width: 76px;
    padding: 0.3rem 0.55rem;
    border-radius: 999px;
    border: 1px solid rgba(17, 24, 39, 0.1);
    background: #F8FAFC;
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.04);
    visibility: visible;
    opacity: 1;
}

.marketplace-badge-logo {
    width: 56px;
    height: 14px;
    display: inline-block;
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    filter: grayscale(1) brightness(0.35) opacity(0.82);
}

.marketplace-badge-logo--aliexpress {
    background-image: url('/project24m/images/marketplaces/aliexpress.svg');
}

.marketplace-badge-logo--amazon {
    background-image: url('/project24m/images/marketplaces/amazon.svg');
    width: 52px;
    height: 15px;
}

.marketplace-badge-logo-img {
    display: block;
    width: 56px;
    height: 14px;
    flex: 0 0 auto;
    object-fit: contain;
    object-position: center;
    filter: grayscale(1) brightness(0.35) opacity(0.82);
}

.marketplace-badge-logo-img--amazon {
    width: 52px;
    height: 15px;
}

.part-info .marketplace-badge {
    margin-top: 0.5rem;
}

.tool-card .marketplace-badge {
    margin: 0 auto 1rem;
}

.db-content .marketplace-badge {
    margin: 0.9rem 0 0;
}

.buy-btn {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    background: #FF6B00;
    color: var(--white);
    font-size: 0.85rem;
    font-weight: 700;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    border: 1px solid #E65E00;
    text-decoration: none;
    white-space: nowrap;
    line-height: 1;
    transition: background-color 0.2s, border-color 0.2s, opacity 0.2s;
}

.buy-btn:hover {
    background: #F26100;
    border-color: #D95700;
}

.buy-btn:active {
    background: #E85B00;
    border-color: #CC5200;
}

.buy-btn:focus-visible {
    outline: 2px solid rgba(255, 107, 0, 0.45);
    outline-offset: 2px;
}

.buy-btn.secondary {
    background: #FF9900;
    border-color: #E28700;
    color: #111827;
}

.buy-btn.secondary:hover {
    background: #F08F00;
    border-color: #D57F00;
}

.buy-btn.disabled {
    background: #E5E7EB;
    color: #6B7280;
    pointer-events: none;
    text-align: center;
    border: 1px solid #D1D5DB;
    box-shadow: none;
}

.part-row.adapter-row {
    border-color: #FBBF24;
    background: #FFFBEB;
}

.choice-group {
    margin-top: 1rem;
    padding: 0.5rem 0 0;
}

.info-group {
    margin: 0.5rem 0 0;
    padding: 0.9rem 1rem;
    border: 1px solid #E5E7EB;
    border-radius: var(--radius);
    background: #FAFAFA;
}

.grease-group {
    margin-top: 0.5rem;
    border: 1px solid #E5E7EB;
    border-radius: var(--radius);
    background: #FAFAFA;
    overflow: hidden;
}

.grease-group .part-row {
    border: none;
    border-bottom: 1px solid #E5E7EB;
    border-radius: 0;
    background: transparent;
}

.grease-group .info-group {
    border: none;
    border-radius: 0;
    background: transparent;
    margin: 0;
}

.info-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.info-title {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--primary);
}

.info-sub {
    font-size: 0.8rem;
    color: var(--secondary);
}

.info-body p {
    font-size: 0.85rem;
    color: var(--secondary);
    margin: 0.35rem 0 0;
}

.choice-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.choice-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--primary);
}

.choice-sub {
    font-size: 0.82rem;
    color: var(--secondary);
}

.choice-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.choice-badge {
    display: inline-block;
    margin-left: 0.5rem;
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    vertical-align: middle;
}

.badge-tinker {
    background: #EFF6FF;
    color: #1D4ED8;
    border: 1px solid #BFDBFE;
}

.badge-permanent {
    background: #ECFDF3;
    color: #047857;
    border: 1px solid #A7F3D0;
}

@media (max-width: 900px) {
    .choice-header {
        flex-direction: column;
        align-items: flex-start;
    }
    .info-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 700px) {
    .choice-grid {
        grid-template-columns: 1fr;
    }
}

.part-group-label {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--secondary);
    margin-top: 2rem;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.part-group-label::after {
    content: '';
    flex: 1;
    height: 1px;
    background: #E5E7EB;
}

.part-note {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    background: #F8FAFC;
    border: 1px solid #E5E7EB;
    border-radius: var(--radius);
    padding: 0.9rem 1rem;
    margin-top: 0.75rem;
}

.part-note p {
    font-size: 0.85rem;
    color: var(--secondary);
    margin-bottom: 0.5rem;
}

.note-thumb {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 10px;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
}

.note-links {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
}

.note-links a {
    color: var(--accent);
    text-decoration: underline;
    font-weight: 600;
}

@media (max-width: 600px) {
    .part-note {
        flex-direction: column;
    }
}

/* --- Wishlist Callout --- */
.wishlist-callout {
    margin-top: 2rem;
    padding: 1.25rem 1.5rem;
    border: 1px solid #E5E7EB;
    border-radius: var(--radius);
    background: #F8FAFC;
}

.wishlist-header {
    margin-bottom: 0.75rem;
}

.wishlist-header h4 {
    margin: 0 0 0.35rem 0;
}

.wishlist-header p {
    margin: 0;
    color: var(--secondary);
    font-size: 0.9rem;
}

.wishlist-cta {
    margin-top: 0.75rem;
    display: inline-block;
}

.wishlist-notes p {
    margin: 0.35rem 0;
    color: var(--secondary);
    font-size: 0.88rem;
}

.wishlist-notes a {
    color: var(--accent);
    text-decoration: underline;
    font-weight: 600;
}

/* --- Updated FAQ Section --- */
.faq-section h2 .icon {
    color: var(--accent);
}

@media (max-width: 600px) {
    .part-row {
        flex-wrap: wrap;
        align-items: flex-start;
    }

    .part-row .buy-btn {
        width: 100%;
        text-align: center;
    }

    .part-info {
        min-width: calc(100% - 68px);
    }

    .marketplace-badge {
        display: inline-flex !important;
        align-self: flex-start;
        width: 68px;
        min-width: 68px;
        max-width: 68px;
        padding: 0.28rem 0.62rem;
        font-size: 0.72rem;
        border-color: rgba(17, 24, 39, 0.12);
        background: #FFFFFF;
        margin-top: 0.45rem;
    }

    .marketplace-badge-logo {
        width: 52px;
        height: 13px;
    }

    .marketplace-badge-logo--amazon {
        width: 48px;
        height: 14px;
    }

    .marketplace-badge-logo-img {
        width: 52px;
        height: 13px;
    }

    .marketplace-badge-logo-img--amazon {
        width: 48px;
        height: 14px;
    }

    .marketplace-action-row {
        gap: 0.4rem;
    }
}