:root {
    /* Color Palette */
    --color-navy: #0f172a;
    --color-indigo: #1e3a8a;
    --color-teal: #0891b2;
    --color-gold: #f59e0b;
    --color-white: #ffffff;
    --color-gray-50: #f8fafc;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e1;
    --color-gray-400: #94a3b8;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1e293b;
    
    /* Spacing */
    --spacing-unit: 8px;
    --container-max: 1280px;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

body {
    font-family: var(--font-primary);
    color: var(--color-gray-700);
    background: var(--color-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Add scroll margin for all sections to account for fixed header */
section[id] {
    scroll-margin-top: 80px;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 calc(var(--spacing-unit) * 3);
}

/* Header */
.header {
    background: var(--color-navy);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.header.scrolled {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: calc(var(--spacing-unit) * 2) calc(var(--spacing-unit) * 3);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-white);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.logo span {
    color: var(--color-teal);
    font-weight: 700;
    position: relative;
}

.nav-links {
    display: flex;
    gap: calc(var(--spacing-unit) * 4);
    list-style: none;
}

.nav-link {
    color: var(--color-gray-300);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-teal);
    transition: width 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-teal);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-white);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-indigo) 100%);
    color: var(--color-white);
    padding: calc(var(--spacing-unit) * 20) calc(var(--spacing-unit) * 3) calc(var(--spacing-unit) * 12);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(255,255,255,0.03) 2px, rgba(255,255,255,0.03) 4px),
        repeating-linear-gradient(90deg, transparent, transparent 2px, rgba(255,255,255,0.03) 2px, rgba(255,255,255,0.03) 4px);
    pointer-events: none;
    z-index: 0;
}

.hero-content {
    max-width: var(--container-max);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: calc(var(--spacing-unit) * 8);
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: calc(var(--spacing-unit) * 3);
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.375rem;
    color: var(--color-gray-300);
    margin-bottom: calc(var(--spacing-unit) * 5);
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: calc(var(--spacing-unit) * 2);
    flex-wrap: wrap;
}

.systems-diagram {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 10px 40px rgba(8, 145, 178, 0.2));
}

/* Animations */
@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.8; }
}

.pulse-node {
    animation: pulse 3s ease-in-out infinite;
}

.system-node {
    cursor: pointer;
    transition: all 0.3s ease;
}

.system-node:hover {
    transform: scale(1.1);
}

.data-flow {
    stroke-dasharray: 5, 5;
    animation: dash 20s linear infinite;
}

@keyframes dash {
    to {
        stroke-dashoffset: -1000;
    }
}

.particle {
    filter: drop-shadow(0 0 3px #0891b2);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: calc(var(--spacing-unit) * 2) calc(var(--spacing-unit) * 4);
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: var(--color-teal);
    color: var(--color-white);
}

.btn-primary:hover {
    background: #0e7490;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(8, 145, 178, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-white);
}

.btn-secondary:hover {
    background: var(--color-white);
    color: var(--color-navy);
}

.btn-full {
    width: 100%;
}

/* Section Styles */
.section {
    padding: calc(var(--spacing-unit) * 12) calc(var(--spacing-unit) * 3);
    position: relative;
    z-index: 10;
    background: var(--color-white);
}

.section.bg-gray {
    background: var(--color-gray-50);
    position: relative;
    z-index: 10;
}

.section-header {
    text-align: center;
    margin-bottom: calc(var(--spacing-unit) * 8);
}

.section-label {
    color: var(--color-teal);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.section-title {
    font-size: 2.75rem;
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: calc(var(--spacing-unit) * 2);
    letter-spacing: -0.02em;
}

.section-description {
    font-size: 1.125rem;
    color: var(--color-gray-600);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.7;
}

/* Problem Section */
.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: calc(var(--spacing-unit) * 4);
}

.problem-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: 12px;
    padding: calc(var(--spacing-unit) * 4);
    transition: all 0.3s ease;
}

.problem-card:hover {
    border-color: var(--color-teal);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transform: translateY(-4px);
}

.problem-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--color-indigo), var(--color-navy));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--color-white);
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.problem-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-navy);
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.problem-card p {
    color: var(--color-gray-600);
    line-height: 1.7;
}

/* Solution Section */
.solution-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: calc(var(--spacing-unit) * 8);
    align-items: center;
}

.solution-features {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 4);
}

.feature-item {
    display: flex;
    gap: calc(var(--spacing-unit) * 3);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-teal), var(--color-indigo));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--color-white);
    flex-shrink: 0;
}

.feature-text h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-navy);
    margin-bottom: calc(var(--spacing-unit) * 1);
}

.feature-text p {
    color: var(--color-gray-600);
    line-height: 1.6;
}

/* Data UI Mockup */
.data-ui-mockup {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.mockup-header {
    background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-gray-100) 100%);
    padding: calc(var(--spacing-unit) * 2.5);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid var(--color-gray-200);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.mockup-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-navy);
    letter-spacing: -0.01em;
    background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-indigo) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.mockup-title .highlight-a {
    color: var(--color-teal);
    font-weight: 800;
    -webkit-text-fill-color: var(--color-teal);
    text-shadow: 0 0 20px rgba(8, 145, 178, 0.3);
    display: inline-block;
    transform: scale(1.1);
}

.mockup-actions {
    display: flex;
    gap: calc(var(--spacing-unit) * 1);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-gray-300);
}

.mockup-content {
    padding: calc(var(--spacing-unit) * 3);
    display: grid;
    gap: calc(var(--spacing-unit) * 2);
}

.metric-card {
    background: var(--color-gray-50);
    border: 1px solid var(--color-gray-200);
    border-radius: 8px;
    padding: calc(var(--spacing-unit) * 2);
}

.metric-label {
    font-size: 0.85rem;
    color: var(--color-gray-600);
    margin-bottom: calc(var(--spacing-unit) * 1);
}

.metric-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: calc(var(--spacing-unit) * 0.5);
}

.metric-change {
    font-size: 0.9rem;
    font-weight: 600;
}

.metric-change.positive {
    color: var(--color-teal);
}

.metric-change.neutral {
    color: var(--color-gray-600);
}

.alert-card {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid var(--color-gold);
    border-radius: 8px;
    padding: calc(var(--spacing-unit) * 2);
    display: flex;
    gap: calc(var(--spacing-unit) * 2);
}

.alert-icon {
    width: 36px;
    height: 36px;
    background: var(--color-gold);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    flex-shrink: 0;
}

.alert-text strong {
    display: block;
    color: var(--color-navy);
    margin-bottom: calc(var(--spacing-unit) * 0.5);
}

.alert-text p {
    font-size: 0.9rem;
    color: var(--color-gray-600);
    margin: 0;
}

/* Timeline */
.timeline {
    position: relative;
    padding-left: calc(var(--spacing-unit) * 8);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-gray-200);
}

.timeline-item {
    position: relative;
    margin-bottom: calc(var(--spacing-unit) * 6);
}

.timeline-marker {
    position: absolute;
    left: calc(var(--spacing-unit) * -8);
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-teal), var(--color-indigo));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-weight: 700;
    font-size: 1.125rem;
}

.timeline-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-navy);
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.timeline-content p {
    color: var(--color-gray-600);
    line-height: 1.7;
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.timeline-content ul {
    list-style: none;
    padding: 0;
}

.timeline-content li {
    color: var(--color-gray-600);
    padding: calc(var(--spacing-unit) * 1) 0;
    padding-left: calc(var(--spacing-unit) * 3);
    position: relative;
}

.timeline-content li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-teal);
    font-weight: 700;
}

/* Impact Section */
.impact-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: calc(var(--spacing-unit) * 4);
    margin-bottom: calc(var(--spacing-unit) * 8);
}

.impact-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: 12px;
    padding: calc(var(--spacing-unit) * 4);
    text-align: center;
}

.impact-number {
    font-size: 4rem;
    font-weight: 700;
    color: var(--color-teal);
    margin-bottom: calc(var(--spacing-unit) * 2);
    line-height: 1;
}

.impact-number::after {
    content: '%';
    font-size: 2.5rem;
    color: var(--color-gray-400);
}

.impact-card:nth-child(3) .impact-number::after {
    content: '';
}

.impact-label {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-navy);
    margin-bottom: calc(var(--spacing-unit) * 1);
}

.impact-description {
    font-size: 0.9rem;
    color: var(--color-gray-600);
    line-height: 1.6;
}

.chart-container {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: 12px;
    padding: calc(var(--spacing-unit) * 4);
    position: relative;
    min-height: 500px;
}

.chart-container canvas {
    max-width: 100%;
    height: 400px !important;
}

.chart-container h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-navy);
    margin-bottom: calc(var(--spacing-unit) * 3);
    text-align: center;
}

/* Engagement Section */
.engagement-phases {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: calc(var(--spacing-unit) * 4);
    margin-bottom: calc(var(--spacing-unit) * 6);
}

.phase-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: 12px;
    padding: calc(var(--spacing-unit) * 4);
    display: flex;
    flex-direction: column;
}

.phase-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.phase-number {
    background: linear-gradient(135deg, var(--color-teal), var(--color-indigo));
    color: var(--color-white);
    padding: calc(var(--spacing-unit) * 1) calc(var(--spacing-unit) * 2);
    border-radius: 6px;
    font-weight: 700;
    font-size: 0.9rem;
}

.phase-duration {
    color: var(--color-gray-600);
    font-size: 0.9rem;
    font-weight: 600;
}

.phase-card h3 {
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--color-navy);
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.phase-card p {
    color: var(--color-gray-600);
    line-height: 1.7;
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.phase-card ul {
    list-style: none;
    padding: 0;
    margin-bottom: calc(var(--spacing-unit) * 3);
    flex-grow: 1;
}

.phase-card li {
    color: var(--color-gray-600);
    padding: calc(var(--spacing-unit) * 1) 0;
    padding-left: calc(var(--spacing-unit) * 3);
    position: relative;
}

.phase-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-teal);
    font-weight: 700;
}

.phase-deliverable {
    background: var(--color-gray-50);
    border-left: 3px solid var(--color-teal);
    padding: calc(var(--spacing-unit) * 2);
    font-size: 0.9rem;
    color: var(--color-gray-600);
    border-radius: 4px;
    margin-top: auto;
}
    color: var(--color-gray-600);
    border-radius: 4px;
}

.engagement-cta {
    background: var(--color-white);
    border: 2px solid var(--color-teal);
    border-radius: 12px;
    padding: calc(var(--spacing-unit) * 4);
    text-align: center;
}

.engagement-cta p {
    font-size: 1.125rem;
    color: var(--color-gray-700);
    margin-bottom: calc(var(--spacing-unit) * 3);
}

/* Contact Section */
.contact-section {
    background: var(--color-gray-50);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: calc(var(--spacing-unit) * 8);
}

.contact-info h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: calc(var(--spacing-unit) * 3);
    letter-spacing: -0.02em;
}

.contact-info p {
    font-size: 1.125rem;
    color: var(--color-gray-600);
    line-height: 1.7;
    margin-bottom: calc(var(--spacing-unit) * 4);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 3);
}

.contact-method {
    display: flex;
    gap: calc(var(--spacing-unit) * 2);
}

.contact-method-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-teal), var(--color-indigo));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--color-white);
    flex-shrink: 0;
}

.contact-method strong {
    display: block;
    color: var(--color-navy);
    font-size: 1rem;
    margin-bottom: calc(var(--spacing-unit) * 0.5);
}

.contact-method p {
    color: var(--color-gray-600);
    font-size: 0.95rem;
    margin: 0;
}

.contact-form-container {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: 12px;
    padding: calc(var(--spacing-unit) * 4);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 2.5);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: calc(var(--spacing-unit) * 2);
    border: 1px solid var(--color-gray-300);
    border-radius: 8px;
    font-family: var(--font-primary);
    font-size: 1rem;
    color: var(--color-gray-700);
    transition: all 0.2s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-teal);
    box-shadow: 0 0 0 3px rgba(8, 145, 178, 0.1);
}

.form-note {
    font-size: 0.85rem;
    color: var(--color-gray-500);
    text-align: center;
    margin-top: calc(var(--spacing-unit) * 1);
}

/* Footer */
.footer {
    background: var(--color-navy);
    color: var(--color-gray-300);
    padding: calc(var(--spacing-unit) * 8) calc(var(--spacing-unit) * 3) calc(var(--spacing-unit) * 4);
}

.footer-container {
    max-width: var(--container-max);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: calc(var(--spacing-unit) * 6);
    margin-bottom: calc(var(--spacing-unit) * 6);
}

.footer-brand h3 {
    color: var(--color-white);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.footer-brand span {
    color: var(--color-teal);
    font-weight: 700;
    position: relative;
}

.footer-brand p {
    color: var(--color-gray-400);
    line-height: 1.6;
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.footer-security-note {
    background: rgba(8, 145, 178, 0.1);
    border-left: 3px solid var(--color-teal);
    padding: calc(var(--spacing-unit) * 2);
    font-size: 0.9rem;
    color: var(--color-gray-300);
}

.footer-section h4 {
    color: var(--color-white);
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: calc(var(--spacing-unit) * 3);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.footer-links a {
    color: var(--color-gray-400);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

.footer-bottom {
    max-width: var(--container-max);
    margin: 0 auto;
    padding-top: calc(var(--spacing-unit) * 4);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
}

.footer-legal {
    display: flex;
    gap: calc(var(--spacing-unit) * 3);
}

.footer-legal a {
    color: var(--color-gray-400);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-legal a:hover {
    color: var(--color-teal);
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.8s ease-out;
}

.fade-in-delay-1 {
    animation: fadeIn 0.8s ease-out 0.2s both;
}

.fade-in-delay-2 {
    animation: fadeIn 0.8s ease-out 0.4s both;
}

.fade-in-delay-3 {
    animation: fadeIn 0.8s ease-out 0.6s both;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: calc(var(--spacing-unit) * 6);
    }
    
    .solution-content {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-navy);
        flex-direction: column;
        padding: calc(var(--spacing-unit) * 3);
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .problem-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline {
        padding-left: calc(var(--spacing-unit) * 6);
    }
    
    .timeline-marker {
        left: calc(var(--spacing-unit) * -6);
        width: 32px;
        height: 32px;
        font-size: 0.9rem;
    }
    
    .engagement-phases {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: calc(var(--spacing-unit) * 2);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
}