/* Apple-esque Dark Design for Fortune 500 Presentation */

:root {
    /* Apple-inspired Color Palette */
    --primary-bg: #000000;
    --secondary-bg: #1c1c1e;
    --tertiary-bg: #2c2c2e;
    --card-bg: #1c1c1e;
    --surface-bg: #2c2c2e;
    --accent-primary: #007aff;
    --accent-secondary: #5ac8fa;
    --accent-gradient: linear-gradient(135deg, #007aff 0%, #5ac8fa 100%);
    --text-primary: #ffffff;
    --text-secondary: #e5e5e7;
    --text-tertiary: #98989d;
    --border-color: #38383a;
    --border-subtle: #48484a;
    --success-color: #30d158;
    --warning-color: #ff9f0a;
    --error-color: #ff453a;
    
    /* Typography */
    --font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', monospace;
    
    /* Spacing & Layout */
    --container-max-width: 1200px;
    --section-padding: 5rem 0;
    --card-padding: 2rem;
    --border-radius: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
    
    /* Shadows & Effects */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.6);
    
    /* Animations */
    --transition-fast: 0.2s cubic-bezier(0.4, 0.0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0.0, 0.2, 1);
}

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

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

body {
    font-family: var(--font-family);
    background: var(--primary-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Background Animation Elements */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.floating-element {
    position: absolute;
    border-radius: 50%;
    background: rgba(0, 122, 255, 0.1);
    animation: float 20s infinite ease-in-out;
    backdrop-filter: blur(2px);
}

.floating-element-1 {
    width: 300px;
    height: 300px;
    top: 10%;
    left: -10%;
    animation-delay: 0s;
    animation-duration: 25s;
}

.floating-element-2 {
    width: 200px;
    height: 200px;
    top: 60%;
    right: -5%;
    animation-delay: -8s;
    animation-duration: 30s;
}

.floating-element-3 {
    width: 150px;
    height: 150px;
    bottom: 20%;
    left: 20%;
    animation-delay: -15s;
    animation-duration: 22s;
}

.floating-element-4 {
    width: 250px;
    height: 250px;
    top: 40%;
    right: 30%;
    animation-delay: -20s;
    animation-duration: 28s;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 122, 255, 0.15) 0%, rgba(90, 200, 250, 0.05) 50%, transparent 100%);
    animation: pulse 15s infinite ease-in-out;
    filter: blur(1px);
}

.orb-1 {
    width: 400px;
    height: 400px;
    top: 5%;
    right: 10%;
    animation-delay: 0s;
}

.orb-2 {
    width: 350px;
    height: 350px;
    bottom: 10%;
    left: 15%;
    animation-delay: -7s;
}

.orb-3 {
    width: 500px;
    height: 500px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -12s;
}

@keyframes float {
    0%, 100% { transform: translateY(0) translateX(0) rotate(0deg); }
    25% { transform: translateY(-20px) translateX(10px) rotate(90deg); }
    50% { transform: translateY(-10px) translateX(-15px) rotate(180deg); }
    75% { transform: translateY(-30px) translateX(5px) rotate(270deg); }
}

@keyframes pulse {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.1); }
}

/* Container */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(28, 28, 30, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition-normal);
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
    padding: 0.5rem 1rem;
    border-radius: 6px;
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.1);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-fast);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 2rem 4rem;
    background: radial-gradient(ellipse at center, rgba(0, 122, 255, 0.1) 0%, transparent 70%);
    position: relative;
}

.hero-content {
    max-width: var(--container-max-width);
    margin: 0 auto;
    text-align: center;
    animation: fadeInUp 1s ease-out;
    width: 100%;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    background: rgba(0, 122, 255, 0.1);
    border: 1px solid rgba(0, 122, 255, 0.3);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    color: var(--accent-secondary);
    margin-bottom: 2rem;
    backdrop-filter: blur(10px);
}

.hero-badge i {
    margin-right: 0.5rem;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.text-accent {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 4rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn i {
    margin-right: 0.5rem;
}

.btn-primary {
    background: var(--accent-gradient);
    color: var(--text-primary);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 1px solid var(--border-subtle);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.hero-visual {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin: 3rem auto 2rem;
    max-width: 900px;
}

.hero-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    text-align: center;
    transition: var(--transition-normal);
    backdrop-filter: blur(20px);
    position: relative;
    overflow: hidden;
}

.hero-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent-gradient);
    transform: scaleX(0);
    transition: var(--transition-normal);
}

.hero-card:hover::before {
    transform: scaleX(1);
}

.hero-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-lg);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.5rem;
    color: white;
}

.hero-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.hero-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Table of Contents */
.toc-section {
    padding: 4rem 0;
    background: var(--secondary-bg);
    border-top: 1px solid var(--border-color);
}

.toc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.toc-item {
    display: flex;
    align-items: center;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.toc-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--accent-gradient);
    transform: scaleY(0);
    transition: var(--transition-normal);
}

.toc-item:hover::before {
    transform: scaleY(1);
}

.toc-item:hover {
    background: var(--surface-bg);
    transform: translateX(8px);
    border-color: var(--accent-primary);
}

.toc-item i {
    font-size: 1.5rem;
    color: var(--accent-primary);
    margin-right: 1rem;
    flex-shrink: 0;
}

.toc-item h3 {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.toc-item p {
    font-size: 0.9rem;
    color: var(--text-tertiary);
    margin: 0;
}

/* Main Content */
.main-content {
    position: relative;
}

.content-section {
    padding: var(--section-padding);
    border-bottom: 1px solid var(--border-color);
    position: relative;
}

.content-section:nth-child(even) {
    background: var(--secondary-bg);
}

.section-header {
    display: flex;
    align-items: center;
    margin-bottom: 3rem;
    position: relative;
}

.section-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--accent-primary);
    margin-right: 2rem;
    line-height: 1;
    opacity: 0.7;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    flex: 1;
    margin-right: 2rem;
    line-height: 1.2;
}

.section-line {
    flex: 1;
    height: 2px;
    background: var(--accent-gradient);
    border-radius: 1px;
}

/* Content Grid */
.content-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: start;
}

.content-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--card-padding);
    backdrop-filter: blur(20px);
}

.content-text {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

.content-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-card {
    background: var(--surface-bg);
    border: 1px solid var(--border-subtle);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    text-align: center;
    transition: var(--transition-normal);
}

.info-card:hover {
    transform: translateY(-2px);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-md);
}

.info-icon {
    width: 50px;
    height: 50px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.25rem;
    color: white;
}

.info-card h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.info-card p {
    color: var(--text-tertiary);
    font-size: 0.9rem;
    margin: 0;
}

/* Objectives */
.objectives-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.objective-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2.5rem;
    text-align: center;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.objective-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--accent-gradient);
    transform: scaleX(0);
    transition: var(--transition-normal);
}

.objective-card:hover::after {
    transform: scaleX(1);
}

.objective-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-lg);
}

.objective-icon {
    width: 70px;
    height: 70px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.75rem;
    color: white;
}

.objective-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.objective-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Approach */
.approach-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.approach-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    transition: var(--transition-normal);
    position: relative;
}

.approach-item:hover {
    background: var(--surface-bg);
    border-color: var(--accent-primary);
    transform: translateX(8px);
}

.approach-header {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.approach-letter {
    width: 40px;
    height: 40px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: white;
    margin-right: 1rem;
    flex-shrink: 0;
}

.approach-item h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin: 0;
}

.approach-item p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* Timeline */
.timeline-container {
    position: relative;
    padding-left: 2rem;
}

.timeline-container::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--accent-gradient);
}

.timeline-phase {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 3rem;
}

.timeline-phase::before {
    content: '';
    position: absolute;
    left: -1rem;
    top: 0.5rem;
    width: 20px;
    height: 20px;
    background: var(--accent-primary);
    border-radius: 50%;
    border: 4px solid var(--primary-bg);
    box-shadow: 0 0 0 2px var(--accent-primary);
}

.phase-header {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.phase-number {
    width: 50px;
    height: 50px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
}

.phase-header h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin: 0;
}

.phase-duration {
    background: rgba(0, 122, 255, 0.1);
    border: 1px solid rgba(0, 122, 255, 0.3);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    color: var(--accent-secondary);
}

.phase-content {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    margin-left: 1rem;
}

.phase-tasks {
    list-style: none;
    margin-bottom: 1.5rem;
}

.phase-tasks li {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.5rem;
}

.phase-tasks li::before {
    content: '•';
    color: var(--accent-primary);
    font-weight: bold;
    position: absolute;
    left: 0;
}

.phase-deliverables h4 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.phase-deliverables p {
    color: var(--text-tertiary);
    font-style: italic;
    margin: 0;
}

/* Governance */
.governance-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.governance-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    text-align: center;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.governance-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-gradient);
    transform: scaleX(0);
    transition: var(--transition-normal);
}

.governance-card:hover::before {
    transform: scaleX(1);
}

.governance-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-lg);
}

.governance-icon {
    width: 60px;
    height: 60px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.5rem;
    color: white;
}

.governance-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.governance-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* Metrics Table */
.metrics-container {
    overflow-x: auto;
    border-radius: var(--border-radius-lg);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
}

.metrics-table table {
    width: 100%;
    border-collapse: collapse;
    font-size: 1rem;
}

.metrics-table th,
.metrics-table td {
    padding: 1.5rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.metrics-table th {
    background: var(--surface-bg);
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.metrics-table td {
    color: var(--text-secondary);
    line-height: 1.6;
}

.metrics-table tr:hover {
    background: rgba(0, 122, 255, 0.05);
}

.metric-category {
    display: flex;
    align-items: center;
    font-weight: 600;
    color: var(--text-primary) !important;
}

.metric-category i {
    margin-right: 0.75rem;
    color: var(--accent-primary);
    font-size: 1.1rem;
}

/* Deliverables */
.deliverables-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.deliverable-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    text-align: center;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.deliverable-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--accent-gradient);
    transform: scaleX(0);
    transition: var(--transition-normal);
}

.deliverable-item:hover::after {
    transform: scaleX(1);
}

.deliverable-item:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-lg);
}

.deliverable-icon {
    width: 60px;
    height: 60px;
    background: var(--accent-gradient);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.5rem;
    color: white;
}

.deliverable-item h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.deliverable-item p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* Risks */
.risks-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.risk-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    transition: var(--transition-normal);
    position: relative;
}

.risk-item:hover {
    background: var(--surface-bg);
    border-color: var(--warning-color);
    transform: translateX(8px);
}

.risk-header {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.risk-header i {
    font-size: 1.5rem;
    color: var(--warning-color);
    margin-right: 1rem;
}

.risk-header h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin: 0;
}

.risk-item p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* Decision Section */
.decision-section {
    background: var(--secondary-bg);
    border: 2px solid var(--accent-primary);
    border-radius: var(--border-radius-xl);
    margin: 2rem 0;
}

.decision-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.decision-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    text-align: center;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.decision-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--success-color);
    transform: scaleX(0);
    transition: var(--transition-normal);
}

.decision-item:hover::before {
    transform: scaleX(1);
}

.decision-item:hover {
    transform: translateY(-5px);
    border-color: var(--success-color);
    box-shadow: var(--shadow-lg);
}

.decision-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--success-color) 0%, #32d74b 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.5rem;
    color: white;
}

.decision-item h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.decision-item p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* References */
.references-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.reference-item {
    display: flex;
    align-items: flex-start;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    transition: var(--transition-normal);
}

.reference-item:hover {
    background: var(--surface-bg);
    border-color: var(--accent-primary);
    transform: translateX(8px);
}

.reference-item i {
    color: var(--accent-primary);
    margin-right: 1rem;
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.reference-item span {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Footer */
.footer {
    background: var(--primary-bg);
    border-top: 1px solid var(--border-color);
    padding: 3rem 0 2rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    align-items: start;
}

.footer-section h3,
.footer-section h4 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.footer-section p {
    color: var(--text-tertiary);
    margin: 0.5rem 0;
}

.footer-copyright {
    grid-column: 1 / -1;
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-tertiary);
    font-size: 0.9rem;
    margin-top: 2rem;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.content-section {
    animation: fadeInUp 0.8s ease-out;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(28, 28, 30, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 2rem;
        transition: var(--transition-normal);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero {
        padding: 6rem 1rem 2rem;
        text-align: center;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }

    .hero-visual {
        grid-template-columns: 1fr;
        gap: 1rem;
        margin: 2rem auto 1rem;
    }

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

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        text-align: left;
    }

    .section-number {
        margin-right: 0;
        margin-bottom: 1rem;
    }

    .section-line {
        width: 100%;
        margin-top: 1rem;
    }

    .objectives-grid,
    .governance-grid,
    .deliverables-grid,
    .decision-grid {
        grid-template-columns: 1fr;
    }

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

    .phase-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .timeline-container {
        padding-left: 1rem;
    }

    .timeline-phase {
        padding-left: 2rem;
    }

    .metrics-table {
        font-size: 0.9rem;
    }

    .metrics-table th,
    .metrics-table td {
        padding: 1rem;
    }

    .container {
        padding: 0 1rem;
    }

    .content-section {
        padding: 3rem 0;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-header h2 {
        font-size: 1.75rem;
    }

    .section-number {
        font-size: 2rem;
    }

    .btn {
        padding: 0.875rem 1.5rem;
        font-size: 0.9rem;
    }

    .hero-card,
    .objective-card,
    .governance-card,
    .deliverable-item,
    .decision-item {
        padding: 1.5rem;
    }

    .phase-content {
        padding: 1.5rem;
        margin-left: 0;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .hero-actions,
    .background-animation {
        display: none;
    }

    body {
        background: white;
        color: black;
    }

    .content-section {
        break-inside: avoid;
        page-break-inside: avoid;
    }
}