/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Light theme aligned with main site */
    --rail-bg: #F7FAF7;
    --rail-bg-section: #EEF6EF;
    --rail-bg-card: #FFFFFF;
    --rail-green: #218A34;
    --rail-green-dark: #166C27;
    --rail-green-light: #32CD32;
    --rail-text: #102014;
    --rail-text-secondary: #4B5D50;
    --rail-border: #D8E5DA;
    --rail-nav-text: #E0E0E0;
    --rail-nav-text-secondary: #A0A0A0;
    --rail-nav-border: rgba(255, 255, 255, 0.12);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Navbar height (mobile safe-area override in nav-mobile.css) */
    --site-header-offset: calc(var(--spacing-md) * 2 + 2.75rem);

    /* Container */
    --container-max-width: 1200px;
    --container-padding: 1.5rem;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--rail-text);
    background:
        radial-gradient(circle at 12% 18%, rgba(50, 205, 50, 0.12), transparent 28%),
        radial-gradient(rgba(33, 138, 52, 0.12) 1px, transparent 1px),
        linear-gradient(180deg, var(--rail-bg-section) 0%, var(--rail-bg) 100%);
    background-size: auto, 18px 18px, auto;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Navigation - Dark chrome (matches main site) */
.navbar {
    background-color: rgba(10, 10, 10, 0.95);
    border-bottom: 1px solid var(--rail-nav-border);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--rail-nav-text);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.logo:hover {
    color: var(--rail-green-light);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-links a,
.nav-dropdown-toggle {
    color: var(--rail-nav-text-secondary);
    background: none;
    border: 0;
    font: inherit;
    text-decoration: none;
    font-weight: 500;
    cursor: pointer;
    transition: color 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active,
.nav-dropdown-toggle:hover,
.nav-dropdown-toggle.active,
.nav-dropdown:focus-within .nav-dropdown-toggle {
    color: var(--rail-green-light);
}

.nav-dropdown {
    position: relative;
}

.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    min-width: 160px;
    padding: var(--spacing-xs);
    border: 1px solid var(--rail-nav-border);
    border-radius: 12px;
    background-color: rgba(10, 10, 10, 0.98);
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
    opacity: 0;
    pointer-events: none;
    transform: translate(-50%, -0.5rem);
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
    opacity: 1;
    pointer-events: auto;
    transform: translate(-50%, 0);
}

.nav-dropdown-menu a {
    display: block;
    padding: 0.65rem 0.85rem;
    border-radius: 8px;
    white-space: nowrap;
}

.nav-dropdown-menu a:hover,
.nav-dropdown-menu a:focus,
.nav-dropdown-menu a.active {
    color: var(--rail-green-light);
    background-color: rgba(50, 205, 50, 0.08);
}

.nav-dropdown-group-label {
    display: block;
    padding: 0.65rem 0.85rem;
    white-space: nowrap;
    text-decoration: none;
    border-radius: 8px;
}

.nav-dropdown-group-label:hover,
.nav-dropdown-group-label:focus,
.nav-dropdown-group-label.active {
    color: var(--rail-green-light);
    background-color: rgba(50, 205, 50, 0.08);
}

.nav-dropdown-menu .nav-dropdown-subitem {
    padding-left: 1.5rem;
}

/* Hero */
.rail-hero {
    padding: var(--spacing-3xl) 0;
    text-align: center;
    border-bottom: 1px solid var(--rail-border);
}

.rail-hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.rail-hero h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    color: var(--rail-green);
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-md);
}

.rail-hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    color: var(--rail-text-secondary);
    line-height: 1.7;
}

/* Rail Product Navigation */
.rail-product-nav {
    padding: var(--spacing-3xl) 0;
    border-bottom: 1px solid var(--rail-border);
    background:
        radial-gradient(circle at 18% 20%, rgba(50, 205, 50, 0.12), transparent 32%),
        var(--rail-bg-section);
}

.rail-product-nav-header {
    max-width: 760px;
    margin: 0 auto var(--spacing-xl);
    text-align: center;
}

.rail-product-nav-header h2 {
    margin: var(--spacing-sm) 0 var(--spacing-md);
    color: var(--rail-green);
    font-size: clamp(2rem, 5vw, 3.5rem);
    line-height: 1.05;
    letter-spacing: -0.03em;
}

.rail-product-nav-header p:last-child {
    color: var(--rail-text-secondary);
    font-size: clamp(1rem, 2vw, 1.2rem);
    line-height: 1.7;
}

.rail-product-nav--hub {
    padding: var(--spacing-xl) 0 var(--spacing-2xl);
}

.rail-product-nav--hub .rail-product-nav-header {
    margin-bottom: var(--spacing-lg);
}

.rail-product-nav--hub .rail-product-nav-header h1 {
    margin: 0 0 var(--spacing-md);
    color: var(--rail-green);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -0.02em;
}

.rail-product-nav-lede {
    max-width: 760px;
    margin: 0 auto;
    color: var(--rail-text-secondary);
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    line-height: 1.7;
}

.rail-product-nav--hub .rail-product-card {
    padding: clamp(1.25rem, 2.5vw, 1.75rem);
}

.rail-product-nav--hub .rail-product-card h3 {
    margin-bottom: var(--spacing-xs);
}

.rail-product-card-media {
    aspect-ratio: 16 / 10;
    margin-bottom: var(--spacing-sm);
    border-radius: 12px;
    overflow: hidden;
    background-color: #0f1410;
}

.rail-product-card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.3s ease;
}

.rail-product-nav--hub .rail-product-card:hover .rail-product-card-media img,
.rail-product-nav--hub .rail-product-card:focus .rail-product-card-media img {
    transform: scale(1.03);
}

.rail-product-card-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--spacing-lg);
}

.rail-product-card {
    display: flex;
    flex-direction: column;
    min-height: 100%;
    padding: clamp(1.5rem, 3vw, 2rem);
    border: 1px solid var(--rail-border);
    border-radius: 18px;
    background-color: rgba(255, 255, 255, 0.9);
    color: var(--rail-text);
    text-decoration: none;
    box-shadow: 0 18px 60px rgba(16, 32, 20, 0.1);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.rail-product-card:hover,
.rail-product-card:focus {
    border-color: rgba(50, 205, 50, 0.55);
    box-shadow: 0 24px 80px rgba(16, 32, 20, 0.14);
    transform: translateY(-3px);
}

.rail-product-card span {
    margin-bottom: var(--spacing-sm);
    color: var(--rail-green);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.16em;
}

.rail-product-card h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--rail-text);
    font-size: clamp(1.35rem, 2.4vw, 1.75rem);
    line-height: 1.15;
}

.rail-product-card p {
    color: var(--rail-text-secondary);
    line-height: 1.7;
}

/* Under Construction Pages */
.under-construction {
    min-height: calc(100vh - 82px);
    display: flex;
    align-items: center;
    padding: var(--spacing-3xl) 0;
    background:
        radial-gradient(circle at top, rgba(50, 205, 50, 0.16), transparent 34%),
        linear-gradient(180deg, var(--rail-bg) 0%, var(--rail-bg-section) 100%);
}

.under-construction-card {
    max-width: 760px;
    margin: 0 auto;
    padding: clamp(2rem, 5vw, 4rem);
    text-align: center;
    border: 1px solid var(--rail-border);
    border-radius: 24px;
    background-color: rgba(255, 255, 255, 0.92);
    box-shadow: 0 24px 80px rgba(16, 32, 20, 0.12);
}

.under-construction-kicker {
    margin-bottom: var(--spacing-sm);
    color: var(--rail-green);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.under-construction-card h1 + .under-construction-kicker {
    margin-top: calc(-1 * var(--spacing-xs));
    margin-bottom: var(--spacing-md);
}

.under-construction-card h1 {
    margin-bottom: var(--spacing-sm);
    color: var(--rail-green);
    font-size: clamp(2.5rem, 7vw, 4.5rem);
    line-height: 1.05;
    letter-spacing: -0.04em;
}

.under-construction-card p {
    margin-bottom: var(--spacing-lg);
    color: var(--rail-text-secondary);
    font-size: clamp(1rem, 2vw, 1.2rem);
    line-height: 1.7;
}

.under-construction-actions {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

/* Product demo video (Rail Yard Tracking) */
.rail-product-video {
    padding: var(--spacing-2xl) 0;
    border-bottom: 1px solid var(--rail-border);
    background:
        radial-gradient(circle at 50% 0%, rgba(50, 205, 50, 0.08), transparent 42%),
        linear-gradient(180deg, var(--rail-bg-section) 0%, var(--rail-bg) 100%);
}

.rail-product-video-header {
    max-width: 720px;
    margin: 0 auto var(--spacing-lg);
    text-align: center;
}

.rail-product-video-header h2 {
    margin: 0 0 var(--spacing-sm);
    color: var(--rail-text-primary);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.rail-product-video-lede {
    margin: 0;
    color: var(--rail-text-secondary);
    font-size: clamp(1rem, 2vw, 1.125rem);
    line-height: 1.65;
}

.rail-product-video-player {
    position: relative;
    max-width: 960px;
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--rail-border);
    background-color: #050505;
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
}

.rail-product-video-media {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    vertical-align: middle;
}

.rail-product-video-play {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin: 0;
    padding: 0;
    border: 0;
    background: rgba(5, 5, 5, 0.45);
    color: #ffffff;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.rail-product-video-play:hover,
.rail-product-video-play:focus-visible {
    background: rgba(5, 5, 5, 0.55);
    outline: none;
}

.rail-product-video-play[hidden] {
    display: none;
}

.rail-product-video-play__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 4.5rem;
    height: 4.5rem;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.85);
    background: rgba(50, 205, 50, 0.2);
}

.rail-product-video-play__icon::before {
    content: '';
    margin-left: 0.2rem;
    border-top: 0.85rem solid transparent;
    border-bottom: 0.85rem solid transparent;
    border-left: 1.35rem solid currentColor;
}

.rail-product-video-play__label {
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.rail-product-video.is-playing .rail-product-video-play {
    display: none;
}

/* Scrollytelling Intro */
.rail-scroll-story {
    position: relative;
    min-height: 420vh;
    overflow: clip;
    border-bottom: 1px solid var(--rail-border);
    background:
        radial-gradient(circle at 18% 20%, rgba(50, 205, 50, 0.12), transparent 34%),
        radial-gradient(rgba(33, 138, 52, 0.12) 1px, transparent 1px),
        linear-gradient(180deg, var(--rail-bg-section) 0%, var(--rail-bg) 100%);
    background-size: auto, 18px 18px, auto;
}

.rail-scroll-story-sticky {
    position: sticky;
    top: var(--site-header-offset);
    min-height: calc(100vh - var(--site-header-offset));
    display: flex;
    align-items: center;
    padding: var(--spacing-lg) 0;
    z-index: 1;
}

.rail-scroll-story-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(340px, 0.76fr);
    gap: clamp(0.75rem, 1.5vw, 1.5rem);
    align-items: center;
}

.rail-scroll-story-layout--fullbleed {
    width: 100%;
    max-width: none;
    margin: 0;
}

.rail-scroll-story-visual {
    display: flex;
    justify-content: flex-end;
    padding-left: clamp(1rem, 2vw, 2rem);
}

.rail-scroll-story-frame {
    position: relative;
    height: min(calc(100vh - 96px), 88vh);
    width: auto;
    aspect-ratio: 664 / 697;
    max-width: min(52vw, calc((100vh - 96px) * 664 / 697));
    border: 1px solid rgba(50, 205, 50, 0.35);
    border-radius: 20px;
    background:
        radial-gradient(circle at center, rgba(50, 205, 50, 0.08), transparent 58%),
        rgba(255, 255, 255, 0.92);
    box-shadow: 0 24px 70px rgba(16, 32, 20, 0.12);
    overflow: hidden;
    transition: opacity 0.45s ease, transform 0.45s ease;
}

.rail-scroll-story-frame::after {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.08), transparent 35%);
}

.rail-scroll-story-image {
    position: absolute;
    inset: 4%;
    width: 92%;
    height: 92%;
    object-fit: contain;
    object-position: center;
    transition: opacity 0.45s ease, transform 0.45s ease;
}

.rail-scroll-story-image--base {
    opacity: 1;
}

.rail-scroll-story-image--rfid,
.rail-scroll-story-image--canopy,
.rail-scroll-story-image--logo {
    opacity: 0;
    transform: scale(1.01);
}

.rail-scroll-story-image--logo {
    inset: 8%;
    width: 84%;
    height: 84%;
}

.rail-scroll-story[data-active-step="1"] .rail-scroll-story-image--rfid,
.rail-scroll-story[data-active-step="2"] .rail-scroll-story-image--canopy {
    opacity: 1;
    transform: scale(1);
}

.rail-scroll-story[data-active-step="3"] .rail-scroll-story-image--base,
.rail-scroll-story[data-active-step="3"] .rail-scroll-story-image--rfid,
.rail-scroll-story[data-active-step="3"] .rail-scroll-story-image--canopy {
    opacity: 0;
    transform: scale(0.98);
}

.rail-scroll-story[data-active-step="3"] .rail-scroll-story-image--logo {
    opacity: 1;
    transform: scale(1);
}

.rail-scroll-story-copy {
    position: relative;
    min-height: 420px;
    padding-right: clamp(1rem, 3vw, 2.5rem);
}

.rail-scroll-story-copy .rail-content-label {
    margin-bottom: var(--spacing-md);
}

.rail-scroll-story-card {
    position: absolute;
    inset: 2.35rem 0 auto;
    max-width: 680px;
    opacity: 0;
    transform: translateY(24px);
    pointer-events: none;
    transition: opacity 0.35s ease, transform 0.35s ease;
}

.rail-scroll-story-card.is-active {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.rail-scroll-story-card h1,
.rail-scroll-story-card h2,
.rail-scroll-story-card p {
    color: var(--rail-text);
    letter-spacing: -0.02em;
}

.rail-scroll-story-card h1,
.rail-scroll-story-card h2 {
    font-size: clamp(2rem, 3.4vw, 3.25rem);
    line-height: 1.04;
    color: var(--rail-green);
}

.rail-scroll-story-card--intro h1,
.rail-scroll-story-card--intro h2 {
    font-size: clamp(1.85rem, 2.9vw, 2.85rem);
    line-height: 1.1;
}

.rail-scroll-story-card p {
    font-size: clamp(1.25rem, 2vw, 1.8rem);
    font-weight: 600;
    line-height: 1.32;
}

.rail-scroll-story-card[data-story-step="1"] p {
    font-size: clamp(1.05rem, 1.55vw, 1.4rem);
    line-height: 1.42;
}

.rail-scroll-story-card--cta p {
    margin-bottom: var(--spacing-lg);
    color: var(--rail-green-light);
}

.rail-scroll-story-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.95rem 2.2rem;
    border-radius: 999px;
    background-color: var(--rail-green);
    color: #050505;
    font-weight: 700;
    text-decoration: none;
    transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.rail-scroll-story-button:hover {
    background-color: var(--rail-green-light);
    box-shadow: 0 14px 34px rgba(50, 205, 50, 0.25);
    transform: translateY(-2px);
}

.rail-scroll-story-spacer {
    position: absolute;
    inset: 0;
    display: grid;
    grid-template-rows: repeat(4, 1fr);
    pointer-events: none;
}

.rail-scroll-story-spacer span {
    display: block;
}

/* Service Sections */
.rail-section {
    padding: var(--spacing-3xl) 0;
    border-bottom: 1px solid var(--rail-border);
    scroll-margin-top: 96px;
    background:
        radial-gradient(circle at 12% 18%, rgba(50, 205, 50, 0.12), transparent 28%),
        radial-gradient(rgba(33, 138, 52, 0.12) 1px, transparent 1px),
        linear-gradient(180deg, var(--rail-bg-section) 0%, var(--rail-bg) 100%);
    background-size: auto, 18px 18px, auto;
}

.rail-section-content {
    max-width: 900px;
    margin: 0 auto;
}

.rail-section h2 {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    color: var(--rail-green);
    margin-bottom: var(--spacing-lg);
    text-align: center;
    letter-spacing: -0.02em;
}

.rail-description {
    font-size: 1.125rem;
    color: var(--rail-text);
    line-height: 1.8;
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

/* Split Layout */
.rail-section-intro {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.rail-section-intro--after-story {
    margin-top: var(--spacing-xl);
}

.rail-section-intro .rail-proof-strip {
    margin-top: var(--spacing-md);
}

.rail-section:has(.rail-section-hero) {
    padding-top: 0;
}

.rail-section-hero {
    position: relative;
    width: 100vw;
    max-width: 100vw;
    margin-left: calc(50% - 50vw);
    aspect-ratio: 21 / 9;
    overflow: hidden;
    border-bottom: 1px solid var(--rail-border);
}

.rail-section-hero-media,
.rail-section-hero-overlay {
    position: absolute;
    inset: 0;
}

.rail-section-hero-media picture {
    display: block;
    width: 100%;
    height: 100%;
}

.rail-section-hero-media img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
}

.rail-section-hero-overlay {
    z-index: 1;
    background:
        radial-gradient(circle at 82% 32%, rgba(50, 205, 50, 0.1), transparent 32%),
        linear-gradient(180deg, rgba(5, 5, 5, 0.08) 0%, rgba(5, 5, 5, 0.42) 50%, rgba(5, 5, 5, 0.82) 100%);
}

.rail-section-hero .container {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding-bottom: clamp(1.25rem, 3vw, 2.5rem);
}

.rail-section-hero-content {
    max-width: 760px;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.rail-section-hero .rail-section-page-title {
    color: #ffffff;
    text-shadow: 0 12px 40px rgba(0, 0, 0, 0.65);
}

.rail-section-hero .rail-section-subtitle {
    color: rgba(255, 255, 255, 0.95);
    text-shadow: 0 8px 24px rgba(0, 0, 0, 0.55);
}

.rail-section-hero .rail-section-lede {
    color: rgba(224, 224, 224, 0.92);
    text-shadow: 0 8px 24px rgba(0, 0, 0, 0.55);
}

.rail-section-hero--full-image {
    aspect-ratio: 16 / 9;
}

.rail-section-hero--full-image .rail-section-hero-media {
    background-color: #050505;
}

.rail-section-hero--full-image .rail-section-hero-media img {
    object-fit: contain;
    object-position: center;
}

.rail-section-hero--full-image .container {
    align-items: flex-end;
    padding-bottom: clamp(3.5rem, 14vw, 7rem);
}

.rail-content-label {
    color: var(--rail-green);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-sm);
}

.rail-section-page-title {
    max-width: 900px;
    margin: 0;
    font-size: clamp(2.5rem, 6vw, 4.25rem);
    font-weight: 700;
    color: var(--rail-green);
    line-height: 1.05;
    letter-spacing: -0.02em;
}

.rail-section-subtitle {
    max-width: 760px;
    margin: 0;
    font-size: clamp(1.5rem, 3.5vw, 2.25rem);
    font-weight: 600;
    color: var(--rail-text);
    line-height: 1.2;
    letter-spacing: -0.01em;
}

.rail-section-lede {
    max-width: 760px;
    margin: 0;
    color: var(--rail-text-secondary);
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    line-height: 1.7;
}

.rail-section-copy {
    color: var(--rail-text-secondary);
    font-size: 1.0625rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.rail-proof-strip {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1px;
    max-width: 920px;
    margin: var(--spacing-xl) auto 0;
    border: 1px solid var(--rail-border);
    border-radius: 12px;
    overflow: hidden;
    background-color: var(--rail-border);
}

.rail-proof-item {
    padding: var(--spacing-md);
    background-color: var(--rail-bg-card);
}

.rail-proof-item span {
    display: block;
    color: var(--rail-green);
    font-size: clamp(1.25rem, 2vw, 1.75rem);
    font-weight: 700;
    line-height: 1.1;
}

.rail-proof-item p {
    margin-top: 0.35rem;
    color: var(--rail-text-secondary);
    font-size: 0.875rem;
}

.rail-split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    align-items: start;
}

.rail-split-text {
    padding: var(--spacing-lg) var(--spacing-xl) var(--spacing-lg) var(--spacing-3xl);
}

.rail-section .rail-split-layout {
    max-width: 100%;
}

.rail-split-text .rail-description {
    text-align: left;
    margin-bottom: var(--spacing-lg);
}

.rail-split-media {
    position: sticky;
    top: calc(var(--spacing-md) + 70px);
    padding: var(--spacing-lg) var(--spacing-3xl) var(--spacing-lg) var(--spacing-xl);
}

/* Sticky Gallery */
.rail-gallery {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    max-width: 760px;
    margin-left: auto;
}

.rail-gallery-main {
    background-color: var(--rail-bg-card);
    border: 1px solid rgba(50, 205, 50, 0.45);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 16px 40px rgba(16, 32, 20, 0.1);
}

.rail-gallery-main-image,
.rail-gallery-main-image.is-contained {
    width: 100%;
    height: auto;
    max-height: 520px;
    min-height: 280px;
    object-fit: contain;
    object-position: center;
    background-color: var(--rail-bg-section);
    display: block;
}

.rail-gallery-main figcaption {
    padding: 0.85rem 1rem;
    color: var(--rail-green);
    font-size: 0.9375rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    border-top: 1px solid var(--rail-border);
}

.rail-gallery-thumbnails {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--spacing-sm);
}

.rail-gallery-thumbnails--three-up {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.rail-gallery-thumb {
    appearance: none;
    padding: 0;
    overflow: hidden;
    border: 1px solid var(--rail-border);
    border-radius: 8px;
    background-color: var(--rail-bg-card);
    color: var(--rail-text-secondary);
    cursor: pointer;
    font-family: var(--font-family);
    text-align: left;
    transition: border-color 0.2s ease, transform 0.2s ease;
}

.rail-gallery-thumb:hover,
.rail-gallery-thumb.is-active {
    border-color: var(--rail-green);
    transform: translateY(-2px);
}

.rail-gallery-thumb img {
    width: 100%;
    height: 110px;
    object-fit: contain;
    object-position: center;
    background-color: var(--rail-bg-section);
    display: block;
}

.rail-gallery-thumb span {
    display: block;
    padding: 0.55rem 0.65rem;
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.rail-gallery-thumb.is-active span {
    color: var(--rail-green);
}

/* Benefits */
.rail-benefits {
    margin: var(--spacing-xl) 0;
}

.rail-benefits h3 {
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--rail-green);
    margin-bottom: var(--spacing-md);
}

.rail-benefit-card-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--spacing-sm);
}

.rail-benefit-card {
    position: relative;
    padding: 1rem 1rem 1rem 1.25rem;
    background-color: var(--rail-bg-card);
    border: 1px solid var(--rail-border);
    border-radius: 8px;
    color: var(--rail-text);
    font-size: 0.9375rem;
    font-weight: 500;
    line-height: 1.45;
    transition: border-color 0.2s ease, transform 0.2s ease;
}

.rail-benefit-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 1rem;
    bottom: 1rem;
    width: 3px;
    border-radius: 0 3px 3px 0;
    background-color: var(--rail-green);
}

.rail-benefit-card:hover {
    border-color: rgba(50, 205, 50, 0.45);
    transform: translateY(-2px);
}

.rail-benefits-list {
    list-style: none;
    padding: 0;
}

.rail-benefits-list li {
    position: relative;
    padding-left: 1.75rem;
    margin-bottom: var(--spacing-sm);
    font-size: 1.0625rem;
    color: var(--rail-text);
    line-height: 1.7;
}

.rail-benefits-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55em;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--rail-green);
}

/* How It Works */
.rail-how-it-works {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    border-left: 4px solid var(--rail-green);
    background-color: var(--rail-bg-card);
    border-radius: 0 8px 8px 0;
}

.rail-how-it-works h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--rail-green);
    margin-bottom: var(--spacing-sm);
}

.rail-how-it-works p {
    font-size: 1.0625rem;
    color: var(--rail-text);
    line-height: 1.7;
}

.rail-flow-steps {
    display: grid;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.rail-flow-step {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--spacing-sm);
    align-items: start;
    padding: var(--spacing-sm);
    border: 1px solid var(--rail-border);
    border-radius: 8px;
    background-color: rgba(255, 255, 255, 0.88);
}

.rail-flow-step span {
    color: var(--rail-green);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
}

.rail-flow-step p {
    margin: 0;
    color: var(--rail-text);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Why AI Vision Callout Box */
.rail-why-ai-callout {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background-color: rgba(50, 205, 50, 0.08);
    border-radius: 8px;
    border: 1px solid rgba(50, 205, 50, 0.2);
}

.rail-why-ai-callout h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--rail-green);
    margin-bottom: var(--spacing-md);
}

.rail-why-ai-callout p {
    font-size: 1rem;
    color: var(--rail-text);
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

.rail-why-ai-callout h4 {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--rail-green);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

/* Page CTA Block */
.rail-page-cta {
    padding: var(--spacing-3xl) 0;
    border-top: 1px solid var(--rail-border);
    border-bottom: 1px solid var(--rail-border);
    background:
        radial-gradient(circle at 18% 20%, rgba(50, 205, 50, 0.12), transparent 34%),
        var(--rail-bg-section);
    text-align: center;
}

.rail-page-cta-content {
    max-width: 760px;
    margin: 0 auto;
}

.rail-page-cta h2 {
    margin-bottom: var(--spacing-md);
    color: var(--rail-green);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.rail-page-cta p {
    margin-bottom: var(--spacing-lg);
    color: var(--rail-text-secondary);
    font-size: clamp(1rem, 2vw, 1.125rem);
    line-height: 1.7;
}

.rail-page-cta .rail-scroll-story-button {
    margin-top: var(--spacing-xs);
}

/* Footer - Dark chrome (matches main site) */
.footer {
    background-color: #0A0A0A;
    border-top: 1px solid var(--rail-nav-border);
    color: var(--rail-nav-text);
    padding: var(--spacing-xl) 0;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: var(--spacing-md);
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-xl);
}

.footer-company-details {
    display: grid;
    gap: var(--spacing-xs);
}

.footer-company-details p {
    font-weight: 600;
}

.footer-company-details address {
    color: var(--rail-nav-text-secondary);
    font-style: normal;
    line-height: 1.6;
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: flex-end;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--rail-nav-text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: var(--rail-green-light);
}

.footer p {
    color: var(--rail-nav-text-secondary);
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --container-padding: 1rem;
        --spacing-3xl: 3rem;
        --spacing-2xl: 2.5rem;
    }

    .nav-links {
        gap: var(--spacing-md);
    }

    .rail-hero {
        padding: var(--spacing-2xl) 0;
    }

    .rail-product-video {
        padding: var(--spacing-xl) 0;
    }

    .rail-product-video-header {
        margin-bottom: var(--spacing-md);
    }

    .rail-product-nav--hub {
        padding: var(--spacing-lg) 0 var(--spacing-xl);
    }

    .rail-product-card-grid {
        grid-template-columns: 1fr;
    }

    .rail-section {
        padding: var(--spacing-2xl) 0;
    }

    .rail-section:has(.rail-section-hero) {
        padding-top: 0;
    }

    .rail-section-hero {
        aspect-ratio: 16 / 10;
        min-height: max(calc(100vw * 10 / 16), 22rem);
    }

    .rail-section-hero:not(.rail-section-hero--full-image) .rail-section-hero-media img {
        object-position: center 15%;
    }

    .rail-section-hero--full-image {
        aspect-ratio: auto;
        height: auto;
        min-height: max(calc(100vw * 9 / 16), min(72svh, 32rem));
        overflow: visible;
    }

    .rail-section-hero--full-image .container {
        height: 100%;
        min-height: inherit;
        padding-bottom: clamp(1.5rem, 5vw, 2.5rem);
    }

    .rail-section-hero--full-image .rail-section-lede {
        font-size: clamp(0.9rem, 3.5vw, 1rem);
        line-height: 1.55;
    }

    .rail-section-hero-overlay {
        background:
            radial-gradient(circle at 50% 20%, rgba(50, 205, 50, 0.1), transparent 34%),
            linear-gradient(180deg, rgba(5, 5, 5, 0.2) 0%, rgba(5, 5, 5, 0.72) 100%);
    }

    .rail-scroll-story {
        min-height: 380vh;
        overflow: visible;
    }

    .rail-scroll-story-sticky {
        position: relative;
        top: auto;
        min-height: 380vh;
        padding: 0 var(--container-padding);
        align-items: stretch;
        display: block;
    }

    .rail-scroll-story-layout {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        min-height: auto;
        display: flex;
        flex-direction: column;
        position: sticky;
        top: var(--site-header-offset);
        z-index: 2;
        padding-bottom: var(--spacing-md);
        background:
            radial-gradient(circle at 18% 20%, rgba(50, 205, 50, 0.12), transparent 34%),
            radial-gradient(rgba(33, 138, 52, 0.12) 1px, transparent 1px),
            linear-gradient(180deg, var(--rail-bg-section) 0%, var(--rail-bg) 100%);
        background-size: auto, 18px 18px, auto;
    }

    .rail-scroll-story-visual {
        --story-frame-height: min(42vh, calc((100vw - 2rem) * 697 / 664));
        position: static;
        justify-content: center;
        padding: var(--spacing-sm) 0 0;
        padding-left: 0;
    }

    .rail-scroll-story-frame {
        width: min(calc(100vw - 2rem), 100%);
        height: var(--story-frame-height);
        max-width: none;
        max-height: 42vh;
        margin: 0 auto;
    }

    .rail-scroll-story-copy {
        position: static;
        flex: 0 0 auto;
        min-height: auto;
        padding: 0 0 var(--spacing-md);
    }

    .rail-scroll-story-card {
        position: static;
        display: none;
        max-width: none;
        opacity: 1;
        transform: none;
        pointer-events: none;
        transition: opacity 0.35s ease;
    }

    .rail-scroll-story-card.is-active {
        display: block;
        pointer-events: auto;
    }

    .rail-scroll-story-card h1,
    .rail-scroll-story-card h2 {
        font-size: clamp(1.75rem, 6vw, 2.25rem);
    }

    .rail-scroll-story-card--intro h1,
    .rail-scroll-story-card--intro h2 {
        font-size: clamp(1.55rem, 5.4vw, 2rem);
    }

    .rail-scroll-story-card p {
        font-size: clamp(1rem, 4vw, 1.25rem);
    }

    .rail-scroll-story-card[data-story-step="1"] p {
        font-size: clamp(0.92rem, 3.5vw, 1.1rem);
    }

    .rail-split-layout {
        grid-template-columns: 1fr;
    }

    .rail-proof-strip {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .rail-split-text {
        padding: var(--spacing-lg) var(--container-padding);
    }

    .rail-split-media {
        position: static;
        order: -1;
        padding: 0;
    }

    .rail-gallery-main,
    .rail-gallery-thumb {
        border-radius: 0;
        border-right: 1px solid var(--rail-border);
    }

    .rail-gallery-thumb:hover,
    .rail-gallery-thumb.is-active {
        transform: none;
    }

    .rail-benefit-card-grid {
        grid-template-columns: 1fr;
    }

    .rail-gallery {
        max-width: none;
    }

    .rail-gallery-main-image {
        height: auto;
    }

    .rail-gallery-thumbnails {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        padding: 0 var(--container-padding) var(--spacing-lg);
    }

    .footer-content {
        align-items: center;
        text-align: center;
    }

    .footer-top {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
    }

    .footer-links {
        justify-content: center;
        flex-wrap: wrap;
    }
}

@media (max-width: 1024px) and (min-width: 769px) {
    .rail-product-card-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .rail-product-card:last-child {
        grid-column: 1 / -1;
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 1.25rem;
    }

    .nav-links {
        font-size: 0.9rem;
        gap: var(--spacing-sm);
    }

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

    .rail-scroll-story-layout {
        top: var(--site-header-offset);
    }

    .rail-scroll-story-visual {
        --story-frame-height: min(38vh, calc((100vw - 2rem) * 697 / 664));
    }

    .rail-scroll-story-frame {
        width: min(calc(100vw - 2rem), 100%);
        height: var(--story-frame-height);
        border-radius: 16px;
        max-height: 38vh;
    }

    .rail-scroll-story-card h1,
    .rail-scroll-story-card h2 {
        font-size: clamp(1.55rem, 7vw, 1.9rem);
    }

    .rail-scroll-story-card--intro h1,
    .rail-scroll-story-card--intro h2 {
        font-size: clamp(1.4rem, 6vw, 1.7rem);
    }

    .rail-scroll-story-card p {
        font-size: clamp(0.95rem, 4.3vw, 1.1rem);
    }

    .rail-scroll-story-card[data-story-step="1"] p {
        font-size: clamp(0.88rem, 3.8vw, 1rem);
    }
}

@media (prefers-reduced-motion: reduce) {
    .rail-scroll-story-image,
    .rail-scroll-story-card,
    .rail-scroll-story-button,
    .rail-scroll-story-frame {
        transition: none;
    }
}