/* ==================================================
   PRISM Website Styles
   Strategic Advisory Grounded in Engineering Reality
   ================================================== */

/* ==================================================
   CSS Variables - Design System
   ================================================== */
:root {
    /* Colors */
    --color-primary: #085373;          /* Deep Industrial Blue */
    --color-secondary: #4A90E2;        /* Steel Blue */
    --color-accent: #E67E22;           /* Industrial Orange */
    --color-success: #27AE60;          /* Industrial Green */
    --color-white: #FFFFFF;
    --color-light-gray: #F8F9FA;
    --color-gray: #E0E0E0;
    --color-dark-gray: #424242;
    --color-text: #2C3E50;
    --color-text-light: #7F8C8D;
    
    /* Typography */
    --font-header: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    
    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 40px;
    --spacing-xl: 64px;
    --spacing-xxl: 96px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    font-size: 18px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-white);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

ul {
    list-style: none;
}

/* ==================================================
   Typography
   ================================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-header);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: 48px;
}

h2 {
    font-size: 40px;
}

h3 {
    font-size: 28px;
}

h4 {
    font-size: 24px;
}

p {
    margin-bottom: var(--spacing-sm);
}

.lead {
    font-size: 22px;
    font-weight: 500;
    line-height: 1.5;
    color: var(--color-primary);
}

strong {
    font-weight: 600;
}

/* ==================================================
   Container & Layout
   ================================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-xxl) 0;
}

.section-header {
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: 40px;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: 22px;
    color: var(--color-text-light);
    max-width: 800px;
    margin: 0 auto;
}

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

/* ==================================================
   Buttons
   ================================================== */
.btn {
    display: inline-block;
    padding: 14px 32px;
    font-family: var(--font-header);
    font-size: 16px;
    font-weight: 600;
    text-align: center;
    border-radius: 4px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition-medium);
    text-transform: none;
}

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

.btn-primary:hover {
    background-color: #D35400;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

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

.btn-lg {
    padding: 18px 48px;
    font-size: 18px;
}

/* ==================================================
   Navigation
   ================================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all var(--transition-medium);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
}

.nav-brand a {
    font-family: var(--font-header);
    font-size: 28px;
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: 2px;
}

.nav-brand-link {
    display: flex;
    align-items: center;
    gap: 4px;
    text-decoration: none;
}

.nav-logo {
    height: 36px;
    width: auto;
    display: block;
}

.nav-brand-text {
    font-family: var(--font-header);
    font-size: 34px;
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: 2px;
}

.nav-tagline {
    display: block;
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 400;
    color: var(--color-text-light);
    margin-top: -4px;
    letter-spacing: 1px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--color-primary);
    margin: 3px 0;
    transition: var(--transition-fast);
}

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

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

.nav-link {
    font-family: var(--font-header);
    font-size: 16px;
    font-weight: 500;
    color: var(--color-text);
    position: relative;
    padding: 8px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: var(--transition-fast);
}

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

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

.nav-linkedin {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-secondary);
    color: var(--color-white);
    border-radius: 4px;
    transition: var(--transition-fast);
}

.nav-linkedin:hover {
    background-color: var(--color-primary);
}

/* ==================================================
   Hero Section
   ================================================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    filter: saturate(0.7) brightness(0.85);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 58, 82, 0.85) 0%, rgba(26, 58, 82, 0.65) 100%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    color: var(--color-white);
    max-width: 900px;
    padding: 0 var(--spacing-md);
}

.hero-title {
    font-size: 56px;
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 22px;
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    color: rgba(255, 255, 255, 0.95);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--color-white);
    opacity: 0.8;
    animation: bounce 2s infinite;
}

.hero-scroll span {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 8px;
}

.hero-scroll i {
    font-size: 20px;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) translateX(-50%);
    }
    40% {
        transform: translateY(-10px) translateX(-50%);
    }
    60% {
        transform: translateY(-5px) translateX(-50%);
    }
}

/* ==================================================
   Problem Statement Section
   ================================================== */
.problem-section {
    background-color: var(--color-white);
}

.problem-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.problem-text {
    padding-right: var(--spacing-md);
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.stat-card {
    background: linear-gradient(135deg, var(--color-light-gray) 0%, var(--color-white) 100%);
    padding: var(--spacing-md);
    border-radius: 8px;
    border-left: 4px solid var(--color-accent);
    text-align: center;
    transition: var(--transition-medium);
}

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

.stat-icon {
    font-size: 32px;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.stat-value {
    font-family: var(--font-header);
    font-size: 32px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 14px;
    color: var(--color-text-light);
    font-weight: 500;
}

/* ==================================================
   Four Realms Section
   ================================================== */
.four-realms-section {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.four-realms-section .section-title,
.four-realms-section .section-subtitle {
    color: var(--color-white);
}

.four-realms-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.realm-card {
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: var(--spacing-lg);
    border-radius: 8px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.realm-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-secondary));
    opacity: 0;
    transition: var(--transition-medium);
}

.realm-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.realm-card:hover::before {
    opacity: 1;
}

.realm-card:hover .realm-details {
    max-height: 300px;
    opacity: 1;
    margin-top: var(--spacing-sm);
}

.realm-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-sm);
    color: var(--color-accent);
}

.realm-title {
    font-size: 20px;
    color: var(--color-white);
    margin-bottom: var(--spacing-xs);
    font-weight: 800;
    letter-spacing: 1px;
}

.realm-subtitle {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

.realm-question {
    font-size: 16px;
    font-style: italic;
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
    line-height: 1.5;
}

.realm-details {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: all var(--transition-medium);
}

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

.realm-details li {
    font-size: 14px;
    padding: 6px 0;
    padding-left: 20px;
    position: relative;
    color: rgba(255, 255, 255, 0.9);
}

.realm-details li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

.realm-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-accent);
    margin-top: var(--spacing-sm);
    transition: var(--transition-fast);
}

.realm-link:hover {
    gap: 12px;
}

.realm-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 180px;
    height: 180px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    z-index: 10;
}

.realm-center-content {
    text-align: center;
    padding: var(--spacing-md);
}

.realm-center-content h4 {
    color: var(--color-white);
    font-size: 24px;
    margin-bottom: 8px;
}

.realm-center-content p {
    color: var(--color-white);
    font-size: 13px;
    margin: 0;
}

/* ==================================================
   Credibility Section
   ================================================== */
.credibility-section {
    background-color: var(--color-light-gray);
}

.credibility-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.credibility-column h3 {
    color: var(--color-primary);
    font-size: 28px;
    margin-bottom: var(--spacing-md);
}

.credibility-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.cred-stat {
    background-color: var(--color-white);
    padding: var(--spacing-md);
    border-radius: 8px;
    text-align: center;
    border-left: 4px solid var(--color-secondary);
}

.cred-stat-value {
    font-family: var(--font-header);
    font-size: 36px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.cred-stat-label {
    font-size: 14px;
    color: var(--color-text);
    line-height: 1.4;
}

.credibility-callout {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: 8px;
    border-left: 4px solid var(--color-accent);
    display: flex;
    align-items: start;
    gap: var(--spacing-md);
}

.credibility-callout i {
    font-size: 24px;
    color: var(--color-accent);
    flex-shrink: 0;
    margin-top: 4px;
}

.credibility-callout p {
    margin: 0;
    font-size: 18px;
    color: var(--color-text);
}

/* ==================================================
   Outcomes Section
   ================================================== */
.outcomes-section {
    background-color: var(--color-white);
}

.testimonial-featured {
    max-width: 900px;
    margin: 0 auto var(--spacing-xl);
}

.testimonial-quote {
    background: linear-gradient(135deg, var(--color-light-gray) 0%, var(--color-white) 100%);
    padding: var(--spacing-xl);
    border-radius: 8px;
    border-left: 6px solid var(--color-accent);
    position: relative;
}

.testimonial-quote i {
    font-size: 40px;
    color: var(--color-accent);
    opacity: 0.3;
    margin-bottom: var(--spacing-sm);
}

.testimonial-quote p {
    font-size: 22px;
    line-height: 1.6;
    color: var(--color-primary);
    font-style: italic;
    margin-bottom: var(--spacing-md);
}

.testimonial-author {
    font-size: 16px;
    color: var(--color-text-light);
    font-style: normal;
}

.outcomes-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.outcome-metric {
    text-align: center;
    padding: var(--spacing-lg);
    background-color: var(--color-light-gray);
    border-radius: 8px;
    transition: var(--transition-medium);
}

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

.outcome-value {
    font-family: var(--font-header);
    font-size: 48px;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.outcome-label {
    font-size: 16px;
    color: var(--color-text);
    line-height: 1.4;
}

.outcomes-disclaimer {
    text-align: center;
    font-size: 14px;
    color: var(--color-text-light);
    font-style: italic;
}

/* ==================================================
   Services Overview Section
   ================================================== */
.services-overview-section {
    background-color: var(--color-light-gray);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.service-card {
    background-color: var(--color-white);
    border-radius: 8px;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    border: 2px solid transparent;
    transition: all var(--transition-medium);
    position: relative;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-secondary);
}

.service-card.featured {
    border-color: var(--color-accent);
    background: linear-gradient(135deg, var(--color-white) 0%, var(--color-light-gray) 100%);
}

.service-badge {
    position: absolute;
    top: -12px;
    right: var(--spacing-md);
    background-color: var(--color-accent);
    color: var(--color-white);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.service-header {
    margin-bottom: var(--spacing-md);
}

.service-title {
    font-size: 24px;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.service-duration {
    font-size: 14px;
    color: var(--color-text-light);
    font-weight: 600;
}

.service-body {
    flex-grow: 1;
    margin-bottom: var(--spacing-md);
}

.service-body p {
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
}

.service-footer {
    margin-top: auto;
}

/* ==================================================
   Leadership Section
   ================================================== */
.leadership-section {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.leadership-section .section-title {
    color: var(--color-white);
}

.leadership-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.leader-card {
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 8px;
    overflow: hidden;
    border: 2px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition-medium);
}

.leader-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.leader-image {
    width: 100%;
    height: 300px;
    overflow: hidden;
}

.leader-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    filter: grayscale(30%) contrast(1.1);
    transition: var(--transition-medium);
}

.leader-card:hover .leader-image img {
    transform: scale(1.05);
    filter: grayscale(0%) contrast(1);
}

.leader-content {
    padding: var(--spacing-lg);
}

.leader-name {
    font-size: 28px;
    color: var(--color-white);
    margin-bottom: var(--spacing-xs);
}

.leader-title {
    font-size: 16px;
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.leader-bio {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.5;
}

.leadership-tagline {
    text-align: center;
    margin-top: var(--spacing-xl);
}

.leadership-tagline p {
    font-size: 20px;
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
}

/* ==================================================
   Final CTA Section
   ================================================== */
.final-cta-section {
    position: relative;
    padding: var(--spacing-xxl) 0;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.final-cta-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.final-cta-background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    filter: saturate(0.7) brightness(0.7);
}

.final-cta-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 58, 82, 0.9) 0%, rgba(26, 58, 82, 0.75) 100%);
    z-index: 2;
}

.final-cta-content {
    position: relative;
    z-index: 3;
    text-align: center;
    color: var(--color-white);
}

.final-cta-title {
    font-size: 56px;
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
}

.final-cta-subtitle {
    font-size: 24px;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: var(--spacing-lg);
}

.final-cta-buttons {
    margin-bottom: var(--spacing-md);
}

.final-cta-contact {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.9);
}

.final-cta-contact a {
    color: var(--color-accent);
    font-weight: 600;
    border-bottom: 1px solid var(--color-accent);
}

.final-cta-contact a:hover {
    color: var(--color-white);
    border-color: var(--color-white);
}

/* ==================================================
   Footer
   ================================================== */
.footer {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-title {
    font-size: 18px;
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

.footer-subsidiary {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
    margin-top: var(--spacing-xs);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    font-size: 15px;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-accent);
    padding-left: 4px;
}

.footer-links i {
    margin-right: 8px;
    width: 16px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

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

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

.footer-bottom p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.8);
    border-bottom: 1px solid transparent;
}

.footer-bottom a:hover {
    color: var(--color-accent);
    border-bottom-color: var(--color-accent);
}

/* ==================================================
   Responsive Design
   ================================================== */

/* Tablet */
@media (max-width: 1023px) {
    h1 {
        font-size: 40px;
    }
    
    h2 {
        font-size: 32px;
    }
    
    .section {
        padding: var(--spacing-xl) 0;
    }
    
    .hero-title {
        font-size: 48px;
    }
    
    .problem-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .four-realms-grid {
        gap: var(--spacing-sm);
    }
    
    .realm-center {
        width: 150px;
        height: 150px;
    }
    
    .realm-center-content h4 {
        font-size: 20px;
    }
    
    .credibility-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .leadership-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Mobile */
@media (max-width: 767px) {
    body {
        font-size: 16px;
    }
    
    h1 {
        font-size: 32px;
    }
    
    h2 {
        font-size: 28px;
    }
    
    h3 {
        font-size: 24px;
    }
    
    .section {
        padding: var(--spacing-lg) 0;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .section-subtitle {
        font-size: 18px;
    }
    
    .lead {
        font-size: 18px;
    }
    
    /* Navigation */
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 280px;
        height: calc(100vh - 70px);
        background-color: var(--color-white);
        box-shadow: var(--shadow-lg);
        flex-direction: column;
        padding: var(--spacing-md);
        transition: var(--transition-medium);
        overflow-y: auto;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-links {
        flex-direction: column;
        width: 100%;
        gap: 0;
    }
    
    .nav-link {
        padding: var(--spacing-sm) 0;
        border-bottom: 1px solid var(--color-gray);
    }
    
    .nav-cta {
        flex-direction: column;
        width: 100%;
        margin-top: var(--spacing-md);
    }
    
    .nav-cta .btn {
        width: 100%;
    }
    
    /* Hero */
    .hero {
        min-height: 500px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .hero-cta .btn {
        width: 100%;
    }
    
    /* Four Realms */
    .four-realms-grid {
        grid-template-columns: 1fr;
    }
    
    .realm-center {
        position: static;
        transform: none;
        width: 100%;
        height: auto;
        border-radius: 8px;
        margin-top: var(--spacing-md);
    }
    
    .realm-details {
        max-height: initial;
        opacity: 1;
        margin-top: var(--spacing-sm);
    }
    
    /* Stats */
    .stat-grid {
        grid-template-columns: 1fr;
    }
    
    .credibility-stats {
        grid-template-columns: 1fr;
    }
    
    .outcomes-metrics {
        grid-template-columns: 1fr;
    }
    
    /* Services - 4 column grid responsive */
    .services-grid[style*="grid-template-columns: repeat(4, 1fr)"] {
        grid-template-columns: 1fr !important;
    }
    
    /* Final CTA */
    .final-cta-title {
        font-size: 36px;
    }
    
    .final-cta-subtitle {
        font-size: 20px;
    }
    
    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
    }
}