:root {
    /* Color Palette */
    --bg-dark: #121212;
    --bg-surface: #1e1e1e;
    --bg-surface-elevated: #2b2b2b;
    
    --accent-green: #10b981;
    --accent-blue: #2563eb;
    --accent-purple: #d946ef;
    --accent-gold: #f59e0b;
    
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    
    /* Glassmorphism */
    --glass-bg: rgba(30, 30, 30, 0.6);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    
    /* Typography */
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-main);
}

body {
    overflow-x: hidden;
    line-height: 1.6;
}

/* Utilities */
.pt-0 { padding-top: 0 !important; }
.mb-64 { margin-bottom: 64px !important; }

h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.text-gradient {
    background: linear-gradient(135deg, var(--accent-green), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Glass Panel Utility */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    border-radius: 16px;
}

/* Buttons */
.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.cta-button.large {
    padding: 16px 32px;
    font-size: 1.125rem;
}

.cta-button.full-width {
    width: 100%;
    margin-top: 24px;
}

.primary-glow {
    background: var(--accent-blue);
    color: white;
    border: none;
    box-shadow: 0 0 20px rgba(37, 99, 235, 0.4);
}

.primary-glow:hover {
    background: #1d4ed8;
    box-shadow: 0 0 30px rgba(37, 99, 235, 0.7);
    transform: translateY(-2px);
}

/* Navigation */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: all 0.4s ease;
}

#navbar.scrolled {
    padding: 12px 0;
    background: rgba(18, 18, 18, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-text {
    font-weight: 800;
    font-size: 1.25rem;
    letter-spacing: -0.03em;
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo .version {
    font-size: 0.75rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 600;
    color: var(--accent-green);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 32px;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.nav-links a:hover {
    color: var(--text-primary);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 24px 80px;
    overflow: hidden;
}

.spline-container {
    position: fixed;
    top: 0;
    left: -5vw;
    width: 55vw;
    height: 100vh;
    z-index: 0;
    /* Fade out the right edge seamlessly into the dark background */
    -webkit-mask-image: linear-gradient(to right, black 70%, transparent 100%);
    mask-image: linear-gradient(to right, black 70%, transparent 100%);
    /* Drop the video's black background and blend the bright pixels */
    mix-blend-mode: screen;
    opacity: 0.7;
}

#hero-video {
    width: 100%;
    height: 100%;
    object-fit: contain;
    pointer-events: none;
    background-color: transparent;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(18, 18, 18, 0.4) 0%, transparent 100%);
    pointer-events: none;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    text-align: center;
}

.badge {
    display: inline-block;
    padding: 6px 12px;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--accent-green);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
    box-shadow: 0 0 15px rgba(16, 185, 129, 0.2);
}

.hero h1 {
    font-size: clamp(3rem, 5vw, 4.5rem);
    margin-bottom: 24px;
}

.hero .subheadline {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.secondary-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.secondary-text strong {
    color: var(--text-primary);
}

/* General Layout */
.section {
    padding: 100px 24px;
    position: relative;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

/* Trust Section */
.trust-section {
    position: relative;
    z-index: 5;
    margin-top: -60px;
}

.trust-card {
    padding: 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    background: rgba(30, 30, 30, 0.8);
    border-left: 4px solid var(--accent-blue);
}

.trust-content h2 {
    font-size: 1.75rem;
    margin-bottom: 12px;
}

.trust-content p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 800px;
}

.trust-content strong {
    color: var(--text-primary);
}

.trust-badge {
    width: 64px;
    height: 64px;
    min-width: 64px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--accent-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 20px rgba(37, 99, 235, 0.3);
}

/* Why Section - 3 Col Grid */
.grid-3-col {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.feature-card {
    padding: 40px 32px;
    transition: transform 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
}

.icon-wrapper {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    background: var(--bg-surface-elevated);
    transition: transform 0.3s ease;
}

.green-glow { color: var(--accent-green); box-shadow: 0 0 25px rgba(16, 185, 129, 0.25); }
.blue-glow { color: var(--accent-blue); box-shadow: 0 0 25px rgba(37, 99, 235, 0.25); }
.purple-glow { color: var(--accent-purple); box-shadow: 0 0 25px rgba(217, 70, 239, 0.25); }

.feature-card:hover .icon-wrapper {
    transform: scale(1.1);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 16px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Why Section - Extended 2 Col Grid */
.grid-2-col {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 32px;
}

.benefit-card {
    padding: 32px;
    background: rgba(30, 30, 30, 0.4);
}

.benefit-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}
.dot.blue { background: var(--accent-blue); box-shadow: 0 0 10px var(--accent-blue); }
.dot.green { background: var(--accent-green); box-shadow: 0 0 10px var(--accent-green); }
.dot.purple { background: var(--accent-purple); box-shadow: 0 0 10px var(--accent-purple); }
.dot.gold { background: var(--accent-gold); box-shadow: 0 0 10px var(--accent-gold); }

.benefit-card h4 {
    font-size: 1.25rem;
    color: var(--text-primary);
}

.benefit-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* How It Works & Pricing */
.timeline-section {
    background: transparent;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, transparent, var(--accent-blue), var(--accent-purple), transparent);
    transform: translateX(-50%);
}

.timeline-item {
    display: flex;
    justify-content: flex-end;
    padding-right: 50%;
    position: relative;
    margin-bottom: 48px;
}

.timeline-item.right {
    justify-content: flex-start;
    padding-right: 0;
    padding-left: 50%;
}

.timeline-content {
    width: calc(100% - 40px);
    padding: 32px;
    position: relative;
    border-top: 2px solid transparent;
    transition: all 0.3s ease;
}

.timeline-item.left .timeline-content {
    margin-right: 40px;
}

.timeline-item.right .timeline-content {
    margin-left: 40px;
}

.timeline-item:hover .timeline-content {
    border-top: 2px solid var(--accent-blue);
}

/* Timeline Dot */
.timeline-item::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--bg-surface);
    border: 3px solid var(--accent-blue);
    border-radius: 50%;
    top: 32px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    box-shadow: 0 0 15px var(--accent-blue);
    transition: all 0.3s ease;
}

.timeline-item:hover::after {
    background: var(--accent-blue);
    transform: translateX(-50%) scale(1.3);
}

.step-number {
    font-size: 0.85rem;
    font-weight: 800;
    color: var(--accent-blue);
    margin-bottom: 8px;
    letter-spacing: 0.1em;
}

.timeline-content h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.timeline-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Deep Dive Features */
.feature-row {
    display: flex;
    align-items: center;
    gap: 64px;
    margin-bottom: 120px;
}

.feature-row.reverse {
    flex-direction: row-reverse;
}

.feature-text {
    flex: 1;
}

.feature-visual {
    flex: 1;
    perspective: 1000px;
}

.tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}
.tag.blue { background: rgba(37, 99, 235, 0.1); color: var(--accent-blue); border: 1px solid rgba(37,99,235,0.2); }
.tag.green { background: rgba(16, 185, 129, 0.1); color: var(--accent-green); border: 1px solid rgba(16,185,129,0.2); }
.tag.purple { background: rgba(217, 70, 239, 0.1); color: var(--accent-purple); border: 1px solid rgba(217,70,239,0.2); }

.feature-text h2 {
    font-size: 2.25rem;
    margin-bottom: 24px;
}

.feature-text p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.feature-list svg {
    color: var(--accent-green);
    width: 20px;
    height: 20px;
}

/* 3D Hover Effects for Visual Cards */
.visual-card {
    height: 350px;
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.5s ease, box-shadow 0.5s ease;
    transform-style: preserve-3d;
    position: relative;
    overflow: hidden;
}

.glow-box-blue:hover { box-shadow: -20px 20px 50px rgba(37, 99, 235, 0.2); border-color: rgba(37,99,235,0.4); }
.glow-box-green:hover { box-shadow: 20px 20px 50px rgba(16, 185, 129, 0.2); border-color: rgba(16,185,129,0.4); }
.glow-box-purple:hover { box-shadow: -20px 20px 50px rgba(217, 70, 239, 0.2); border-color: rgba(217,70,239,0.4); }

.hover-3d:hover {
    transform: rotateY(-5deg) rotateX(5deg) translateZ(20px);
}

.reverse .hover-3d:hover {
    transform: rotateY(5deg) rotateX(5deg) translateZ(20px);
}

/* Mock UI CSS Arts */
.mock-ui {
    width: 80%;
    height: 80%;
    background: var(--bg-surface);
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
}

.mock-header {
    height: 30px;
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    padding: 0 16px;
    gap: 8px;
    background: rgba(0,0,0,0.2);
}

.dots span {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #ff5f56;
}
.dots span:nth-child(2) { background: #ffbd2e; margin: 0 4px; }
.dots span:nth-child(3) { background: #27c93f; }

.mock-header .title {
    margin-left: auto;
    margin-right: auto;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.mock-body {
    flex: 1;
    position: relative;
    background: radial-gradient(circle at center, #2b2b2b 0%, #1e1e1e 100%);
    border-radius: 0 0 12px 12px;
}

.wireframe-kidney {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 180px;
    border: 2px dashed rgba(255, 255, 255, 0.1);
    border-radius: 60px 60px 40px 40px;
    background: rgba(37, 99, 235, 0.05);
}

.stone {
    position: absolute;
    width: 12px;
    height: 12px;
    background: var(--accent-gold);
    border-radius: 3px;
    box-shadow: 0 0 10px var(--accent-gold);
}

/* Anatomy Grid */
.anatomy-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    padding: 24px;
    width: 100%;
    height: 100%;
}

.anatomy-item {
    background: rgba(0,0,0,0.2);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.anatomy-item.highlight-green {
    border-color: var(--accent-green);
    color: var(--accent-green);
    background: rgba(16, 185, 129, 0.05);
    box-shadow: inset 0 0 15px rgba(16,185,129,0.1);
}

.anatomy-item.highlight-purple {
    border-color: var(--accent-purple);
    color: var(--accent-purple);
    background: rgba(217, 70, 239, 0.05);
    box-shadow: inset 0 0 15px rgba(217,70,239,0.1);
}

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

.shield-text {
    margin-top: 16px;
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--accent-purple);
}

/* Pricing Section */
.pricing-container {
    max-width: 500px;
    margin: 0 auto;
}

.pricing-card {
    padding: 48px;
    text-align: center;
    border-top: 4px solid var(--accent-blue);
    background: linear-gradient(180deg, rgba(37,99,235,0.05) 0%, var(--glass-bg) 100%);
}

.price-header {
    margin-bottom: 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--glass-border);
}

.token-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 16px;
    color: var(--accent-gold);
    background: rgba(245, 158, 11, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.price-header h3 {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.price {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1;
    color: var(--text-primary);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.period {
    font-size: 1.5rem;
    color: var(--accent-gold);
}

.per-image {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.pricing-features {
    list-style: none;
    text-align: left;
    margin-bottom: 32px;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    font-size: 1rem;
}

.pricing-features svg {
    color: var(--accent-blue);
    width: 20px;
    height: 20px;
}

/* Footer */
.footer {
    background: #0a0a0a;
    padding-top: 100px;
    border-top: 1px solid var(--glass-border);
}

.footer-cta {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 100px;
    padding: 0 24px;
}

.footer-cta h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.footer-cta p {
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 1.125rem;
}

.requires-text {
    margin-top: 24px;
    font-size: 0.85rem;
    color: #6b7280;
}

.timeline-section {
    position: relative;
    padding: 100px 0;
    background: transparent;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding: 32px 24px;
    border-top: 1px solid rgba(255,255,255,0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.footer-links a:hover {
    color: var(--text-primary);
}

.footer-copy {
    color: #6b7280;
    font-size: 0.85rem;
}

/* Global Animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}
.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}
.delay-1 { transition-delay: 0.15s; }
.delay-2 { transition-delay: 0.3s; }
.delay-3 { transition-delay: 0.45s; }

.hover-float { transition: transform 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease; }
.hover-float:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(96, 165, 250, 0.15), inset 0 0 10px rgba(96, 165, 250, 0.05);
    border-color: rgba(96, 165, 250, 0.5);
}

.hover-float-subtle { transition: transform 0.3s ease, background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease; }
.hover-float-subtle:hover {
    transform: translateY(-4px);
    background: rgba(40, 40, 40, 0.6);
    box-shadow: 0 10px 20px rgba(96, 165, 250, 0.1), inset 0 0 10px rgba(96, 165, 250, 0.05);
    border-color: rgba(96, 165, 250, 0.4);
}

.hover-scale { transition: transform 0.3s ease; }
.hover-scale:hover {
    transform: scale(1.02);
}

.pulse-glow {
    animation: pulseGlow 3s infinite;
}
@keyframes pulseGlow {
    0% { box-shadow: 0 0 15px rgba(37, 99, 235, 0.4); }
    50% { box-shadow: 0 0 30px rgba(37, 99, 235, 0.8); }
    100% { box-shadow: 0 0 15px rgba(37, 99, 235, 0.4); }
}

.pulse-fast {
    animation: pulseFast 1.5s infinite;
}
@keyframes pulseFast {
    0% { transform: scale(1); box-shadow: 0 0 10px var(--accent-gold); }
    50% { transform: scale(1.4); box-shadow: 0 0 20px var(--accent-gold); }
    100% { transform: scale(1); box-shadow: 0 0 10px var(--accent-gold); }
}

.float-anim {
    animation: floating 4s ease-in-out infinite;
}
@keyframes floating {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
    100% { transform: translateY(0px); }
}

.pulse-text {
    animation: pulseText 2s infinite;
}
@keyframes pulseText {
    0% { opacity: 0.8; }
    50% { opacity: 1; text-shadow: 0 0 10px var(--accent-purple); }
    100% { opacity: 0.8; }
}

/* Premium Banner for Trust Section */
.premium-banner {
    background: linear-gradient(145deg, rgba(30, 41, 59, 0.7) 0%, rgba(15, 23, 42, 0.8) 100%);
    border: 1px solid rgba(250, 204, 21, 0.3); /* Subtle gold border */
    border-radius: 16px;
    padding: 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.1);
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
}

.premium-banner::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, #f59e0b, #fbbf24, #fcd34d);
}

.premium-banner .trust-content h2 {
    color: #fcd34d;
    font-size: 1.8rem;
    margin-bottom: 15px;
}

/* Privacy Special Card */
.benefit-card.privacy-special {
    border-color: rgba(96, 165, 250, 0.4);
    box-shadow: 0 0 20px rgba(96, 165, 250, 0.1), inset 0 0 10px rgba(96, 165, 250, 0.05);
}

.pulse-lock {
    animation: pulseLock 2s infinite;
}

@keyframes pulseLock {
    0% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.1); opacity: 1; filter: drop-shadow(0 0 8px #60a5fa); }
    100% { transform: scale(1); opacity: 0.8; }
}

/* Responsive Design */
@media (max-width: 900px) {
    .nav-links { display: none; }
    .hero h1 { font-size: 2.5rem; }
    
    .trust-card {
        flex-direction: column;
        text-align: center;
        gap: 24px;
    }
    
    .grid-2-col {
        grid-template-columns: 1fr;
    }
    
    .timeline::after { left: 20px; }
    .timeline-line { left: 20px; }
    .timeline-item { justify-content: flex-start; padding-right: 0; padding-left: 50px; }
    .timeline-item.right { padding-left: 50px; }
    .timeline-content { width: 100%; margin: 0 !important; }
    .timeline-item::after { left: 20px; }
    
    .feature-row, .feature-row.reverse { flex-direction: column; gap: 40px; }
    .footer-bottom { flex-direction: column; text-align: center; }
}
/* Hero Actions */
.action-btn { margin-bottom: 20px; }
.action-desc { display: block; }
.action-sysreq { margin-top: 15px; font-size: 0.9rem; color: #9ca3af; }
.inline-icon { vertical-align: middle; }

/* Banner Card */
.banner-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 30px 40px;
    margin-bottom: 40px;
    gap: 30px;
}
.banner-card .banner-content {
    flex: 1;
    text-align: left;
}
.banner-card .banner-visual {
    flex: 0 0 200px;
    display: flex;
    justify-content: center;
    align-items: center;
}
.integration-icons {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 24px;
    font-weight: bold;
    color: var(--text-secondary);
}

/* Toast */
.toast {
    position: fixed;
    bottom: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: #1e293b;
    color: #f8fafc;
    padding: 16px 24px;
    border-radius: 8px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.3);
    border-left: 4px solid #3b82f6;
    font-size: 0.95rem;
    z-index: 1000;
    transition: bottom 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
.toast.show {
    bottom: 30px;
}

/* Responsive updates for banner */
@media (max-width: 768px) {
    .banner-card { flex-direction: column; text-align: center; }
    .banner-card .banner-content { text-align: center; }
}

/* --- New UI Components: Architecture Tabs & Value Cards --- */

/* Value Cards */
.value-card {
    padding: 30px;
    display: flex;
    flex-direction: column;
    text-align: left;
}
.value-card h3 {
    margin-bottom: 15px;
    font-size: 1.4rem;
    color: var(--text-primary);
}
.value-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}
.mb-4 { margin-bottom: 20px; }
.gold-glow { color: #f59e0b; filter: drop-shadow(0 0 10px rgba(245, 158, 11, 0.4)); }

/* Architecture Tabs */
.architecture-section {
    position: relative;
    z-index: 5;
}
.arch-container {
    background: rgba(30, 30, 30, 0.4);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    overflow: hidden;
    backdrop-filter: blur(10px);
}
.arch-tabs {
    display: flex;
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid var(--glass-border);
    overflow-x: auto;
}
.arch-tab {
    flex: 1;
    background: transparent;
    border: none;
    padding: 20px;
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border-bottom: 3px solid transparent;
    white-space: nowrap;
}
.arch-tab:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}
.arch-tab.active {
    color: var(--accent-blue);
    border-bottom: 3px solid var(--accent-blue);
    background: rgba(37, 99, 235, 0.1);
}

.arch-content {
    padding: 40px;
}
.arch-panel {
    display: none;
    animation: fadeInTab 0.4s ease forwards;
}
.arch-panel.active {
    display: block;
}
@keyframes fadeInTab {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}
.panel-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 30px;
}
.panel-header h3 {
    font-size: 1.8rem;
    color: var(--text-primary);
    margin: 0;
}
.panel-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}
.panel-detail {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 24px;
    border-radius: 12px;
}
.panel-detail.full-width {
    grid-column: 1 / -1;
}
.panel-detail h4 {
    color: #e2e8f0;
    margin-bottom: 10px;
    font-size: 1.1rem;
}
.panel-detail p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}
.layout-2col {
    grid-template-columns: 1.5fr 1fr;
    align-items: center;
}
.nlp-stages {
    list-style: none;
    padding: 0;
}
.nlp-stages li {
    margin-bottom: 15px;
    padding-left: 20px;
    position: relative;
    color: var(--text-secondary);
    line-height: 1.5;
}
.nlp-stages li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent-blue);
}
.nlp-stages li strong {
    color: #e2e8f0;
}

@media (max-width: 900px) {
    .layout-2col {
        grid-template-columns: 1fr;
    }
}