/* Aerospace Company Design System */

/* Reset and Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 100%;
}

body {
    font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, system-ui, sans-serif;
    line-height: 1.6;
    color: #e0e6ed;
    background: #0a0d12;
    overflow-x: hidden;
}

/* Custom Properties */
:root {
    --primary-blue: #00d4ff;
    --secondary-orange: #ff6b35;
    --accent-green: #00ff88;
    --text-primary: #e0e6ed;
    --text-secondary: #a0a8b0;
    --text-muted: #6b7280;
    --bg-primary: #0a0d12;
    --bg-secondary: #111821;
    --bg-tertiary: #1a202c;
    --border-primary: #2d3748;
    --border-secondary: #4a5568;
    --gradient-primary: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
    --gradient-secondary: linear-gradient(135deg, #ff6b35 0%, #cc4400 100%);
    --shadow-glow: 0 0 20px rgba(0, 212, 255, 0.3);
    --shadow-deep: 0 8px 32px rgba(0, 0, 0, 0.6);
    --radius-small: 4px;
    --radius-medium: 8px;
    --radius-large: 16px;
}

/* Typography */
.lead {
    font-size: 1.25rem;
    font-weight: 500;
    line-height: 1.7;
    color: var(--text-primary);
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 13, 18, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-primary);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(10, 13, 18, 0.98);
    box-shadow: var(--shadow-deep);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
}

.nav-brand .brand-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--primary-blue);
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 0.1em;
}

.nav-brand .brand-logo svg {
    filter: drop-shadow(0 0 8px rgba(0, 212, 255, 0.6));
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-right: 300px; /* Make space for version selector */
}

/* Version Navigation */
.nav-versions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(0, 212, 255, 0.05);
    border-radius: var(--radius-medium);
    border: 1px solid rgba(0, 212, 255, 0.2);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.1);
    position: absolute;
    top: 50%;
    right: 20px;
    transform: translateY(-50%);
    z-index: 10000;
}

.nav-version-label {
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-right: 0.5rem;
}

.nav-versions .nav-link {
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    border-radius: calc(var(--radius-medium) - 2px);
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.nav-link.version-active {
    background: var(--primary-blue);
    color: var(--bg-primary);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.4);
}

.nav-link.version-active:hover {
    background: #00b8e6;
    color: var(--bg-primary);
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.6);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-medium);
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
}

.nav-link:hover {
    color: var(--primary-blue);
    background: rgba(0, 212, 255, 0.1);
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.2);
}

.nav-link.external::after {
    content: '↗';
    margin-left: 0.5rem;
    opacity: 0.7;
}

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

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.hero-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridFloat 20s ease-in-out infinite;
}

.hero-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 80%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(255, 107, 53, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 40% 40%, rgba(0, 255, 136, 0.05) 0%, transparent 50%);
    animation: particleFloat 30s ease-in-out infinite;
}

@keyframes gridFloat {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-10px, -10px); }
}

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

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    width: 100%;
}

.mission-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid var(--primary-blue);
    border-radius: var(--radius-small);
    color: var(--primary-blue);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 2rem;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.2);
}

.hero-title {
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 2rem;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.hero-title .highlight {
    background: var(--gradient-primary);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: block;
    text-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
}

.hero-subtitle {
    font-size: 1.25rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 500px;
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    padding: 1rem 2rem;
    background: var(--gradient-primary);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-medium);
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-glow);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    padding: 1rem 2rem;
    background: transparent;
    color: var(--text-primary);
    text-decoration: none;
    border: 2px solid var(--border-secondary);
    border-radius: var(--radius-medium);
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.btn-secondary:hover {
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--primary-blue);
    color: var(--primary-blue);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

/* Hero Visual */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hologram {
    position: relative;
    width: 400px;
    height: 300px;
    background: rgba(17, 24, 33, 0.8);
    border: 2px solid var(--primary-blue);
    border-radius: var(--radius-large);
    overflow: hidden;
    box-shadow: 
        0 0 50px rgba(0, 212, 255, 0.4),
        inset 0 0 50px rgba(0, 212, 255, 0.1);
}

.hologram-content {
    position: relative;
    width: 100%;
    height: 100%;
}

.hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hologram-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        45deg,
        transparent 25%,
        rgba(0, 212, 255, 0.1) 50%,
        transparent 75%
    );
    animation: scanlines 3s linear infinite;
}

@keyframes scanlines {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Mission Section */
.mission {
    padding: 8rem 0;
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.section-line {
    width: 100px;
    height: 2px;
    background: var(--gradient-primary);
    margin: 2rem auto;
    border-radius: 1px;
}

.mission-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.stat-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-large);
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-blue);
    box-shadow: 0 10px 40px rgba(0, 212, 255, 0.2);
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-blue);
    display: block;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.1rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Projects Section */
.projects {
    padding: 8rem 0;
    background: var(--bg-primary);
}

.project {
    margin-bottom: 8rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-large);
    overflow: hidden;
    transition: all 0.3s ease;
}

.project:hover {
    border-color: var(--primary-blue);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.project-header {
    padding: 2rem;
    border-bottom: 1px solid var(--border-primary);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.project-category {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--secondary-orange);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0.5rem 1rem;
    background: rgba(255, 107, 53, 0.1);
    border-radius: var(--radius-small);
}

.project-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    flex: 1;
    margin: 0 1rem;
}

.project-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--accent-green);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-green);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.project-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}

.project:nth-child(even) .project-content {
    direction: rtl;
}

.project:nth-child(even) .project-content > * {
    direction: ltr;
}

/* Project Media */
.project-media {
    position: relative;
    background: var(--bg-tertiary);
}

.media-main {
    position: relative;
    width: 100%;
    height: 400px;
    overflow: hidden;
}

.project-video,
.project-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project:hover .project-video,
.project:hover .project-image {
    transform: scale(1.05);
}

.video-overlay,
.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        to bottom,
        transparent 0%,
        rgba(0, 0, 0, 0.2) 50%,
        rgba(0, 0, 0, 0.8) 100%
    );
    display: flex;
    align-items: flex-end;
    padding: 2rem;
}

.video-info,
.overlay-content {
    color: white;
}

.video-info span:first-child,
.overlay-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary-blue);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    display: block;
    margin-bottom: 1rem;
}

.telemetry-data {
    display: flex;
    gap: 2rem;
}

.data-point {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.data-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.data-value {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent-green);
}

.system-status {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--text-muted);
}

.status-dot.online {
    background: var(--accent-green);
    animation: pulse 2s infinite;
}

.media-thumbnails {
    display: flex;
    gap: 0.5rem;
    padding: 1rem;
    background: var(--bg-primary);
    overflow-x: auto;
}

.thumbnail {
    width: 80px;
    height: 60px;
    object-fit: cover;
    border-radius: var(--radius-small);
    cursor: pointer;
    opacity: 0.6;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.thumbnail.active {
    opacity: 1;
    border: 2px solid var(--primary-blue);
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.4);
}

.thumbnail:hover {
    opacity: 1;
    transform: scale(1.05);
}

.video-thumb {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    flex-direction: column;
    padding: 0.5rem;
    text-align: center;
}

.video-thumb .play-icon {
    font-size: 1.2rem;
    margin-bottom: 0.25rem;
}

.video-thumb span {
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Project Details */
.project-details {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.project-description {
    margin-bottom: 2rem;
}

.project-description p {
    margin-bottom: 1.5rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

.project-description p:last-child {
    margin-bottom: 0;
}

.project-specs h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
}

.spec-item {
    display: flex;
    flex-direction: column;
    padding: 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-medium);
    text-align: center;
    transition: all 0.3s ease;
}

.spec-item:hover {
    border-color: var(--primary-blue);
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.2);
}

.spec-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.spec-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Capabilities Section */
.capabilities {
    padding: 8rem 0;
    background: var(--bg-secondary);
}

.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.capability-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-large);
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

.capability-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-blue);
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.2);
}

.capability-icon {
    margin-bottom: 1.5rem;
    color: var(--primary-blue);
}

.capability-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

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

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

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-brand .brand-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--primary-blue);
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 0.1em;
}

.footer-brand p {
    color: var(--text-secondary);
    max-width: 300px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.link-group h4 {
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.link-group a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.25rem 0;
    transition: color 0.3s ease;
}

.link-group a:hover {
    color: var(--primary-blue);
}

.footer-bottom {
    border-top: 1px solid var(--border-primary);
    padding-top: 2rem;
    text-align: center;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .project-content {
        grid-template-columns: 1fr;
    }
    
    .project:nth-child(even) .project-content {
        direction: ltr;
    }
    
    .hologram {
        width: 300px;
        height: 225px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    .nav-container {
        padding: 0.5rem 1rem;
        height: auto;
        min-height: 100px;
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .nav-brand .brand-logo {
        font-size: 0.9rem;
    }
    
    .nav-menu {
        gap: 1rem;
        margin-right: 0; /* Remove margin on mobile */
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .nav-link {
        padding: 0.5rem 1rem;
        font-size: 0.75rem;
    }
    
    /* Mobile version selector */
    .nav-versions {
        position: static;
        transform: none;
        margin-top: 0.5rem;
        order: 3;
        gap: 0.25rem;
        padding: 0.25rem 0.5rem;
    }
    
    .nav-version-label {
        font-size: 0.65rem;
        margin-right: 0.25rem;
    }
    
    .nav-versions .nav-link {
        font-size: 0.65rem;
        padding: 0.15rem 0.5rem;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero {
        padding-top: 120px; /* Account for larger mobile navbar */
        min-height: calc(100vh - 120px);
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .project-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .project-title {
        margin: 0;
        font-size: 1.5rem;
    }
    
    .media-main {
        height: 250px;
    }
    
    .telemetry-data {
        flex-direction: column;
        gap: 1rem;
    }
    
    .mission-stats {
        grid-template-columns: 1fr;
    }
    
    .capabilities-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

@media (max-width: 480px) {
    .specs-grid {
        grid-template-columns: 1fr;
    }
    
    .hologram {
        width: 250px;
        height: 188px;
    }
    
    .project-details {
        padding: 1.5rem;
    }
    
    .media-thumbnails {
        padding: 0.5rem;
    }
    
    .thumbnail {
        width: 60px;
        height: 45px;
    }
}

/* Accessibility and Interaction */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

.nav-link:focus,
.btn-primary:focus,
.btn-secondary:focus,
.thumbnail:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

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

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

.project:nth-child(2) { animation-delay: 0.1s; }
.project:nth-child(3) { animation-delay: 0.2s; }
.project:nth-child(4) { animation-delay: 0.3s; }
.project:nth-child(5) { animation-delay: 0.4s; }
.project:nth-child(6) { animation-delay: 0.5s; }