/* Base Styles & Variables */
:root {
    --primary: #2563eb;
    --primary-light: #3b82f6;
    --primary-dark: #1d4ed8;
    --text: #1f2937;
    --text-light: #4b5563;
    --background: rgba(255, 255, 255, 0.9);
    --card-bg: #ffffff;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --border-radius: 12px;
    --transition: all 0.3s ease;

    /* New hero section variables */
    --bg: #f0f4f8;
    --bg-secondary: #ffffff;
    --accent: #4169E1;
    --accent-light: #6B8FF6;
    --accent-soft: rgba(65, 105, 225, 0.1);
    --text-main: #1a202c;
    --text-muted: #4a5568;
    --border-color: rgba(65, 105, 225, 0.15);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'IBM Plex Sans', sans-serif;
    color: var(--text);
    background: linear-gradient(135deg, #f0f4f8 0%, #e6f0ff 50%, #f8f9ff 100%);
    background-attachment: fixed;
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'IBM Plex Sans', sans-serif;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
    position: relative;
    display: inline-block;
}

h2:after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 4px;
    background-color: var(--primary);
    border-radius: 2px;
}

p {
    margin-bottom: 1.25rem;
}

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

a:hover {
    color: var(--primary-dark);
}

ul {
    list-style-position: inside;
    margin-bottom: 1.25rem;
}

li {
    margin-bottom: 0.5rem;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

section {
    padding: 6rem 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

section.active {
    opacity: 1;
    transform: translateY(0);
}

section:nth-child(even) {
    background-color: #fff;
}

.card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 2rem;
    transition: var(--transition);
    height: 100%;
}

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

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-family: 'IBM Plex Sans', sans-serif;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

/* Navigation */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition);
}

.main-nav.scrolled {
    padding: 0.5rem 0;
    background-color: rgba(255, 255, 255, 0.98);
}

.main-nav .container {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-family: 'IBM Plex Sans', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.nav-links {
    display: none;
    list-style: none;
}

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

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

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

.nav-links a.active {
    color: var(--primary);
    font-weight: 600;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text);
    visibility: hidden;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    padding: clamp(2rem, 4vw, 4rem);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: linear-gradient(180deg, #f0f4f8 0%, #e8f0fc 100%);
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(65, 105, 225, 0.05), transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(107, 143, 246, 0.05), transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.hero-inner {
    max-width: 1200px;
    width: 100%;
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.1fr);
    gap: clamp(2rem, 4vw, 4rem);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-copy {
    animation: fadeInUp 0.8s ease-out forwards;
    opacity: 0;
}

.hero-copy-eyebrow {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin-bottom: 1rem;
    display: inline-block;
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--text-main);
}

.hero-title .highlight {
    color: var(--accent);
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero-cta-row {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-top: 2rem;
}

.hero-cta-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    background: var(--accent);
    color: white;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    text-decoration: none;
    box-shadow: 0 4px 12px rgba(65, 105, 225, 0.25);
}

.hero-cta-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(65, 105, 225, 0.4);
    background: var(--accent-light);
}

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

.hero-cta-secondary span {
    color: var(--accent);
    cursor: pointer;
    transition: color 0.2s ease;
    font-weight: 500;
}

.hero-cta-secondary span:hover {
    color: var(--accent-light);
}

/* Simulation */
.hero-sim {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 3;
    border-radius: 1.5rem;
    padding: 1.25rem;
    overflow: hidden;
    background: linear-gradient(135deg, #ffffff 0%, #f8faff 100%);
    box-shadow: 0 0 0 3px var(--accent),
                0 0 30px rgba(65, 105, 225, 0.25),
                0 20px 60px rgba(65, 105, 225, 0.15),
                0 8px 24px rgba(0, 0, 0, 0.08);
    cursor: none;
    animation: fadeInScale 1s ease-out 0.4s forwards, simGlow 3s ease-in-out infinite;
    opacity: 0;
}

@keyframes simGlow {
    0%, 100% {
        box-shadow: 0 0 0 3px var(--accent),
                    0 0 30px rgba(65, 105, 225, 0.25),
                    0 20px 60px rgba(65, 105, 225, 0.15),
                    0 8px 24px rgba(0, 0, 0, 0.08);
    }
    50% {
        box-shadow: 0 0 0 3px var(--accent-light),
                    0 0 50px rgba(65, 105, 225, 0.4),
                    0 20px 60px rgba(65, 105, 225, 0.25),
                    0 8px 24px rgba(0, 0, 0, 0.08);
    }
}

.sim-label {
    position: absolute;
    top: 1.25rem;
    left: 1.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent);
    background: var(--accent-soft);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    z-index: 2;
}

.sim-caption {
    position: absolute;
    bottom: 1.25rem;
    left: 1.5rem;
    right: 1.5rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    z-index: 2;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.listener {
    position: absolute;
    width: 60px;
    height: 60px;
    background: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 0.8rem;
    transform: translate(-50%, -50%);
    z-index: 3;
    box-shadow: 0 4px 12px rgba(65, 105, 225, 0.4);
    transition: transform 0.1s ease-out;
}

.sound {
    position: absolute;
    font-size: 0.8rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: white;
    border-radius: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    z-index: 2;
    transition: all 0.3s ease;
    opacity: 0.7;
}

.sound-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    position: relative;
}

.sound.in-focus {
    transform: scale(1.1);
    opacity: 1;
    color: var(--accent);
    font-weight: 600;
    box-shadow: 0 4px 16px rgba(65, 105, 225, 0.2);
}

.sound.mid-focus {
    opacity: 0.9;
}

.sound-ripple {
    position: absolute;
    border: 2px solid var(--accent);
    border-radius: 50%;
    transform: translate(-50%, -50%) scale(0);
    opacity: 0;
    animation: ripple 2s infinite;
}

@keyframes ripple {
    0% {
        transform: translate(-50%, -50%) scale(0);
        opacity: 0.5;
    }
    100% {
        transform: translate(-50%, -50%) scale(2);
        opacity: 0;
    }
}

.connection-line {
    position: absolute;
    height: 2px;
    background: linear-gradient(to right, rgba(65, 105, 225, 0.7), rgba(65, 105, 225, 0.1));
    transform-origin: left center;
    z-index: 1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.connection-line.active {
    opacity: 1;
}

/* Navigation Dots */
.nav-dots {
    position: absolute;
    left: 2rem;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    z-index: 5;
}

.nav-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    background: transparent;
    transition: all 0.3s ease;
    cursor: pointer;
}

.nav-dot.active {
    background: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 12px rgba(65, 105, 225, 0.5);
}

.nav-dot:hover {
    border-color: var(--accent);
    transform: scale(1.2);
}

/* Cursor Follower */
.cursor-follower {
    position: fixed;
    width: 24px;
    height: 24px;
    border: 2px solid var(--accent);
    border-radius: 50%;
    pointer-events: none;
    z-index: 1000;
    transform: translate(-50%, -50%) scale(0);
    opacity: 0;
    transition: transform 0.2s ease, opacity 0.2s ease;
    will-change: transform, opacity;
}

.touch-device .cursor-follower {
    width: 40px;
    height: 40px;
    background: rgba(65, 105, 225, 0.1);
    border: 2px solid var(--accent);
    transform: translate(-50%, -50%) scale(0);
    transition: transform 0.15s ease-out, opacity 0.15s ease-out;
    opacity: 1;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Responsive Adjustments */
@media (max-width: 1024px) {
    .hero-inner {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3rem;
    }
    
    .hero-cta-row {
        justify-content: center;
    }
    
    .nav-dots {
        display: none;
    }
    
    .hero-sim {
        max-width: 600px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 6rem 1.5rem 4rem;
    }
    
    .hero-cta-row {
        flex-direction: column;
        gap: 1rem;
    }
    
    .hero-cta-secondary {
        display: block;
    }
}

/* Timeline Navigation */
.timeline-nav {
    position: fixed;
    left: 2rem;
    top: 50%;
    transform: translateY(-50%);
    z-index: 100;
    display: flex;
    align-items: center;
}

.timeline {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding: 2rem 0;
}

.timeline:before {
    content: '';
    position: absolute;
    left: 9px;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: #e5e7eb;
    z-index: 1;
}

.time.listener::before {
    content: "";
    position: absolute;
    width: 32px;
    height: 32px;
    background-image: url('../images/Artboard 2.png');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    animation: listenPulse 1.5s ease-in-out infinite;
}

.timeline-progress {
    position: absolute;
    left: 9px;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--primary);
    z-index: 2;
    transform-origin: top;
    transform: scaleY(0);
    transition: transform 0.5s ease;
}

.timeline-item {
    display: flex;
    align-items: center;
    margin-bottom: 2rem;
    position: relative;
    z-index: 3;
    text-decoration: none;
    color: var(--text-light);
    transition: var(--transition);
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-dot {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: #e5e7eb;
    margin-right: 1rem;
    border: 3px solid var(--background);
    transition: var(--transition);
    position: relative;
    z-index: 3;
}

.timeline-label {
    opacity: 0;
    transform: translateX(-10px);
    transition: var(--transition);
    white-space: nowrap;
    font-size: 0.9rem;
    font-weight: 500;
}

.timeline-item.active .timeline-dot {
    background-color: var(--primary);
    transform: scale(1.2);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.2);
}

.timeline-item.completed .timeline-dot {
    background-color: var(--primary);
}

.timeline-item:hover .timeline-label,
.timeline-item.active .timeline-label {
    opacity: 1;
    transform: translateX(0);
}

/* Lightbox styles */
.lightbox {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    text-align: center;
    padding: 20px;
    box-sizing: border-box;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lightbox.show {
    opacity: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.lightbox img {
    max-width: 90%;
    max-height: 80vh;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    transform: scale(0.95);
    transition: transform 0.3s ease;
}

.lightbox.show img {
    transform: scale(1);
}

.close-btn {
    position: absolute;
    top: 30px;
    right: 30px;
    color: #fff;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s;
    z-index: 1001;
}

.close-btn:hover {
    color: #ccc;
}

#lightbox-caption {
    color: #fff;
    margin-top: 20px;
    font-size: 1.1rem;
    max-width: 80%;
    text-align: center;
}

/* Image hover effects */
.communication-images img {
    cursor: zoom-in;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.communication-images img:hover {
    transform: scale(1.02);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

/* Section Styles */
#intro {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    text-align: center;
    padding: 8rem 0;
}

#intro h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(90deg, #1e40af, #3b82f6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

#intro .lead {
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto 2rem;
    color: var(--text);
}

/* Bullet List */
.bullet-list {
    list-style: none;
    padding: 0;
}

.bullet-list li {
    position: relative;
    padding-left: 1.75rem;
    margin-bottom: 0.75rem;
}

.bullet-list li:before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
    font-size: 1.5rem;
    line-height: 1;
}

/* Concept Diagram */
.concept-diagram {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    margin: 2rem 0;
    gap: 1rem;
}

.concept-step {
    flex: 1;
    min-width: 120px;
    text-align: center;
    padding: 1.5rem 1rem;
    background: #f8fafc;
    border-radius: var(--border-radius);
    transition: var(--transition);
    border: 1px solid #e2e8f0;
}

.concept-step.highlight {
    background: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 100%);
    border-color: #7dd3fc;
    transform: translateY(-5px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.concept-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.concept-arrow {
    display: flex;
    align-items: center;
    padding: 0 0.5rem;
    font-size: 1.5rem;
    color: var(--text-light);
}

/* Stakeholder Grid */
.stakeholder-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.stakeholder-card {
    background: #f8fafc;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    border-left: 4px solid var(--primary);
    transition: var(--transition);
}

.stakeholder-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

/* Roles Grid */
.roles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.role-card {
    background: #f8fafc;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    transition: var(--transition);
    border-top: 3px solid var(--primary);
}

.role-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

/* Horizontal Timeline */
.timeline-horizontal {
    display: flex;
    justify-content: space-between;
    position: relative;
    margin: 3rem 0;
    padding: 0 2rem;
}

.timeline-horizontal:before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    height: 2px;
    background: #e5e7eb;
    z-index: 1;
}

.timeline-item-horizontal {
    position: relative;
    text-align: center;
    width: 25%;
    padding: 0 1rem;
    z-index: 2;
}

.timeline-dot-horizontal {
    width: 16px;
    height: 16px;
    background: #e5e7eb;
    border-radius: 50%;
    margin: 0 auto 1rem;
    position: relative;
    z-index: 3;
    border: 3px solid white;
    transition: var(--transition);
}

.timeline-item-horizontal.active .timeline-dot-horizontal {
    background: var(--primary);
    transform: scale(1.2);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.2);
}

.timeline-content {
    background: white;
    padding: 1rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    position: relative;
    transition: var(--transition);
}

.timeline-item-horizontal:hover .timeline-content {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

/* Risk Table */
.risk-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: 0.9rem;
}

.risk-header {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 2fr;
    font-weight: 600;
    background-color: #f3f4f6;
    border-radius: 6px 6px 0 0;
    overflow: hidden;
}

.risk-header > div {
    padding: 0.75rem 1rem;
    text-align: left;
}

.risk-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 2fr;
    border-bottom: 1px solid #e5e7eb;
    transition: var(--transition);
}

.risk-row:last-child {
    border-bottom: none;
}

.risk-row > div {
    padding: 1rem;
    border-right: 1px solid #e5e7eb;
}

.risk-row > div:last-child {
    border-right: none;
}

.risk-row:hover {
    background-color: #f9fafb;
}

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.metric-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-top: 4px solid var(--primary);
}

.metric-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.metric-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
    font-family: 'IBM Plex Sans', sans-serif;
}

.metric-label {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Market Grid */
.market-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.market-card {
    background: #f8fafc;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    transition: var(--transition);
    border-left: 4px solid var(--primary);
}

.market-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

/* Positioning Grid */
.positioning-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.positioning-card {
    background: #f8fafc;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    transition: var(--transition);
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 200px;
}

.positioning-card.highlight {
    background: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 100%);
    transform: scale(1.05);
    z-index: 2;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
}

.positioning-card .tagline {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary);
    margin-top: 1rem;
    font-style: italic;
}

/* Logistics Grid */
.logistics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.logistics-item {
    background: #f8fafc;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    transition: var(--transition);
}

.logistics-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.logistics-item h4 {
    color: var(--primary);
    margin-bottom: 1rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.logistics-item h4:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: var(--primary);
}

/* Communication Flow */
.communication-flow {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin: 3rem 0;
    position: relative;
    padding: 2rem 0;
}

.flow-item {
    position: relative;
    padding: 1.5rem;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
    max-width: 80%;
    margin: 0 auto;
    z-index: 2;
}

.flow-item.highlight {
    background: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 100%);
    transform: scale(1.05);
    z-index: 3;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
}

.flow-arrow {
    font-size: 1.5rem;
    color: var(--primary);
    margin: 0.5rem 0;
    position: relative;
    z-index: 1;
}

.flow-arrow:after {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: #e5e7eb;
    z-index: -1;
}

.flow-item:last-child .flow-arrow {
    display: none;
}

/* International Grid */
.international-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.international-item {
    background: #f8fafc;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    transition: var(--transition);
    text-align: center;
    border-top: 3px solid var(--primary);
}

.international-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

/* Q&A Grid */
.qa-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.qa-item {
    background: #f8fafc;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    transition: var(--transition);
    border-left: 4px solid var(--primary);
}

.qa-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.qa-item h4 {
    color: var(--primary);
    margin-bottom: 0.75rem;
}

/* Footer */
footer {
    background-color: #1f2937;
    color: #f3f4f6;
    padding: 3rem 0;
    text-align: center;
}

footer p {
    margin: 0;
    color: #9ca3af;
}

/* Utility Classes */
.mt-2 {
    margin-top: 2rem;
}

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

.highlight {
    position: relative;
}

.highlight:after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 30%;
    background-color: rgba(37, 99, 235, 0.1);
    z-index: -1;
    transform: scaleX(0.9);
    transform-origin: left;
}

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

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}

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

/* Responsive Styles */
@media (max-width: 1024px) {
    .timeline-nav {
        display: none;
    }

    section {
        padding: 4rem 0;
    }

    .concept-diagram {
        flex-direction: column;
        align-items: center;
    }

    .concept-step {
        width: 100%;
        margin-bottom: 1rem;
    }

    .concept-arrow {
        transform: rotate(90deg);
        margin: 0.5rem 0;
    }
}

@media (max-width: 768px) {
    .main-nav .container {
        padding: 0 1rem;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 1rem;
        box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: block;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    .timeline-horizontal {
        flex-direction: column;
        align-items: flex-start;
        padding: 0;
    }

    .timeline-horizontal:before {
        display: none;
    }

    .timeline-item-horizontal {
        width: 100%;
        text-align: left;
        margin-bottom: 1.5rem;
        padding: 0;
    }

    .timeline-dot-horizontal {
        display: none;
    }

    .timeline-content {
        box-shadow: none;
        padding: 0;
    }

    .flow-item {
        max-width: 100%;
    }

    .flow-arrow {
        transform: rotate(90deg);
        margin: 1rem 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    section {
        padding: 3rem 0;
    }

    .card {
        padding: 1.5rem;
    }

    .stakeholder-grid,
    .roles-grid,
    .metrics-grid,
    .market-grid,
    .positioning-grid,
    .logistics-grid,
    .international-grid,
    .qa-grid {
        grid-template-columns: 1fr;
    }

    .risk-header,
    .risk-row {
        grid-template-columns: 1fr 1fr;
    }

    .risk-header > div,
    .risk-row > div {
        padding: 0.5rem;
        font-size: 0.8rem;
    }

    .risk-row > div:nth-child(3) {
        display: none;
    }
}