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

:root {
    /* Apple-inspired Dark Color Palette */
    --primary-black: #000000;
    --secondary-black: #1d1d1f;
    --tertiary-black: #2d2d30;
    --quaternary-gray: #424245;
    --text-white: #f5f5f7;
    --text-gray: #86868b;
    --accent-blue: #007aff;
    --accent-purple: #af52de;
    --accent-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    
    /* Typography */
    --font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Spacing */
    --section-padding: 120px 0;
    --container-padding: 0 5%;
    --max-width: 1200px;
    
    /* Animation */
    --transition-smooth: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

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

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

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--secondary-black);
}

::-webkit-scrollbar-thumb {
    background: var(--quaternary-gray);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-gray);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: all 0.3s var(--transition-smooth);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.navbar.scrolled {
    background: rgba(0, 0, 0, 0.8);
    padding: 15px 0;
    border-bottom: 1px solid var(--glass-border);
}

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

.logo-text {
    font-size: 24px;
    font-weight: var(--font-weight-bold);
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-link {
    color: var(--text-white);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    font-size: 16px;
    transition: all 0.3s var(--transition-smooth);
    position: relative;
}

.nav-link:hover {
    color: var(--accent-blue);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-blue);
    transition: width 0.3s var(--transition-smooth);
}

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

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

.hamburger span {
    width: 25px;
    height: 2px;
    background: var(--text-white);
    transition: all 0.3s var(--transition-smooth);
}

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

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 40%, rgba(120, 119, 198, 0.3), transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.15), transparent 50%),
                radial-gradient(circle at 40% 80%, rgba(120, 198, 198, 0.2), transparent 50%);
    animation: gradientShift 20s ease-in-out infinite;
}

/* Animated Circuit Lines */
.hero-background::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(45deg, transparent 20%, rgba(102, 126, 234, 0.6) 50%, transparent 80%),
        linear-gradient(-45deg, transparent 20%, rgba(175, 82, 222, 0.5) 50%, transparent 80%);
    background-size: 200px 200px, 150px 150px;
    animation: circuitFlow 25s linear infinite;
    opacity: 0.7;
}

@keyframes gradientShift {
    0%, 100% { transform: scale(1) rotate(0deg); }
    50% { transform: scale(1.1) rotate(180deg); }
}

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

@keyframes circuitFlow {
    0% { transform: translate(0, 0); }
    100% { transform: translate(200px, 150px); }
}

.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(0, 0, 0, 0.7) 100%);
}

/* Futuristic Particles */
.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    z-index: 1;
}

.particle-field {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(3px 3px at 20px 30px, rgba(0, 122, 255, 1), transparent),
        radial-gradient(3px 3px at 40px 70px, rgba(175, 82, 222, 0.9), transparent),
        radial-gradient(2px 2px at 90px 40px, rgba(102, 126, 234, 1), transparent),
        radial-gradient(2px 2px at 130px 80px, rgba(0, 122, 255, 0.8), transparent),
        radial-gradient(4px 4px at 160px 30px, rgba(175, 82, 222, 1), transparent),
        radial-gradient(2px 2px at 200px 90px, rgba(102, 126, 234, 0.9), transparent),
        radial-gradient(3px 3px at 240px 50px, rgba(0, 122, 255, 1), transparent),
        radial-gradient(2px 2px at 280px 10px, rgba(175, 82, 222, 0.8), transparent),
        radial-gradient(2px 2px at 320px 70px, rgba(102, 126, 234, 1), transparent),
        radial-gradient(3px 3px at 360px 40px, rgba(0, 122, 255, 0.9), transparent);
    background-repeat: repeat;
    background-size: 400px 200px;
    animation: particleFloat 30s linear infinite;
    filter: drop-shadow(0 0 10px rgba(0, 122, 255, 0.5));
}

@keyframes particleFloat {
    0% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(-100px, -100px) rotate(120deg); }
    66% { transform: translate(100px, -50px) rotate(240deg); }
    100% { transform: translate(0, 0) rotate(360deg); }
}

/* Tech Rings */
.hero-tech-elements {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.tech-ring {
    position: absolute;
    border: 2px solid rgba(0, 122, 255, 0.8);
    border-radius: 50%;
    animation: ringRotate 20s linear infinite;
    box-shadow: 
        0 0 20px rgba(0, 122, 255, 0.4),
        inset 0 0 20px rgba(0, 122, 255, 0.2);
}

.tech-ring::before {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    border: 2px solid rgba(175, 82, 222, 0.6);
    border-radius: 50%;
    animation: ringRotate 25s linear infinite reverse;
    box-shadow: 
        0 0 15px rgba(175, 82, 222, 0.3),
        inset 0 0 15px rgba(175, 82, 222, 0.2);
}

.tech-ring-1 {
    width: 300px;
    height: 300px;
    top: 20%;
    left: 10%;
    animation-duration: 25s;
}

.tech-ring-2 {
    width: 200px;
    height: 200px;
    top: 60%;
    right: 15%;
    animation-duration: 18s;
    animation-direction: reverse;
}

.tech-ring-3 {
    width: 150px;
    height: 150px;
    top: 30%;
    right: 25%;
    animation-duration: 22s;
}

@keyframes ringRotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes ringPulse {
    0%, 100% { 
        border-color: rgba(0, 122, 255, 0.3);
        box-shadow: 0 0 10px rgba(0, 122, 255, 0.1);
    }
    50% { 
        border-color: rgba(0, 122, 255, 0.8);
        box-shadow: 0 0 30px rgba(0, 122, 255, 0.4);
    }
}

/* Data Streams */
.data-streams {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.data-stream {
    position: absolute;
    height: 3px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(0, 122, 255, 1) 30%,
        rgba(0, 255, 255, 1) 50%, 
        rgba(0, 122, 255, 1) 70%,
        transparent 100%);
    animation: streamFlow 8s linear infinite;
    box-shadow: 
        0 0 10px rgba(0, 122, 255, 0.8),
        0 0 20px rgba(0, 255, 255, 0.4);
}

.data-stream::before {
    content: '';
    position: absolute;
    top: -2px;
    left: 0;
    right: 0;
    bottom: -2px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(102, 126, 234, 0.8) 30%,
        rgba(0, 255, 255, 0.6) 50%,
        rgba(102, 126, 234, 0.8) 70%,
        transparent 100%);
    filter: blur(2px);
}

.stream-1 {
    width: 300px;
    top: 25%;
    left: -300px;
    animation-delay: 0s;
    animation-duration: 8s;
}

.stream-2 {
    width: 250px;
    top: 55%;
    right: -250px;
    animation-delay: 2s;
    animation-duration: 10s;
    animation-direction: reverse;
}

.stream-3 {
    width: 200px;
    top: 75%;
    left: -200px;
    animation-delay: 4s;
    animation-duration: 12s;
}

@keyframes streamFlow {
    0% { transform: translateX(0); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateX(calc(100vw + 300px)); opacity: 0; }
}

/* Enhanced Holographic Effects */
.hero-background {
    position: relative;
}

.hero-background::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(0, 122, 255, 0.3) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 122, 255, 0.3) 1px, transparent 1px),
        linear-gradient(rgba(175, 82, 222, 0.2) 1px, transparent 1px),
        linear-gradient(90deg, rgba(175, 82, 222, 0.2) 1px, transparent 1px);
    background-size: 50px 50px, 50px 50px, 100px 100px, 100px 100px;
    animation: gridMove 15s linear infinite, gridPulse 8s ease-in-out infinite;
    opacity: 0.8;
}

@keyframes gridPulse {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

/* Scan Lines Effect */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(0, 255, 255, 1) 30%,
        rgba(255, 255, 255, 0.8) 50%,
        rgba(0, 255, 255, 1) 70%,
        transparent 100%);
    animation: scanLine 6s linear infinite;
    z-index: 3;
    box-shadow: 
        0 0 10px rgba(0, 255, 255, 0.8),
        0 0 20px rgba(0, 255, 255, 0.4),
        0 0 30px rgba(0, 255, 255, 0.2);
}

@keyframes scanLine {
    0% { top: 0%; opacity: 1; }
    50% { opacity: 0.5; }
    100% { top: 100%; opacity: 0; }
}

.hero-content {
    text-align: center;
    z-index: 2;
    max-width: 800px;
    padding: var(--container-padding);
}

.hero-title {
    font-size: clamp(48px, 8vw, 96px);
    font-weight: var(--font-weight-bold);
    line-height: 1.1;
    margin-bottom: 30px;
    overflow: hidden;
}

.hero-title-line {
    display: block;
    opacity: 0;
    transform: translateY(100px);
    animation: slideUpFade 1s var(--transition-spring) forwards;
}

.hero-title-line:nth-child(2) {
    animation-delay: 0.2s;
}

.hero-title-line:nth-child(3) {
    animation-delay: 0.4s;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@keyframes slideUpFade {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-subtitle {
    font-size: 24px;
    font-weight: var(--font-weight-light);
    color: var(--text-gray);
    margin-bottom: 50px;
    opacity: 0;
    animation: fadeInUp 1s var(--transition-smooth) 0.8s forwards;
}

.hero-cta {
    opacity: 0;
    animation: fadeInUp 1s var(--transition-smooth) 1s forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.cta-button {
    background: var(--accent-gradient);
    border: none;
    padding: 18px 40px;
    border-radius: 50px;
    color: var(--text-white);
    font-size: 18px;
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all 0.3s var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s;
}

.cta-button:hover::before {
    left: 100%;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid var(--text-white);
    border-bottom: 2px solid var(--text-white);
    transform: rotate(45deg);
}

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

/* Section Styles */
.section {
    padding: var(--section-padding);
    position: relative;
}

.section-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--container-padding);
}

.section-header {
    margin-bottom: 80px;
}

.section-header.centered {
    text-align: center;
}

.section-label {
    display: block;
    font-size: 14px;
    font-weight: var(--font-weight-medium);
    letter-spacing: 2px;
    color: var(--accent-blue);
    margin-bottom: 20px;
    text-transform: uppercase;
}

.section-title {
    font-size: clamp(32px, 5vw, 64px);
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    color: var(--text-white);
}

/* About Section */
.about {
    background: linear-gradient(135deg, var(--secondary-black) 0%, var(--primary-black) 100%);
}

.content-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 80px;
    align-items: center;
}

.text-large {
    font-size: 24px;
    font-weight: var(--font-weight-light);
    color: var(--text-white);
    margin-bottom: 30px;
    line-height: 1.4;
}

.text-regular {
    font-size: 18px;
    color: var(--text-gray);
    margin-bottom: 50px;
    line-height: 1.6;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

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

.stat-number {
    font-size: 48px;
    font-weight: var(--font-weight-bold);
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 16px;
    color: var(--text-gray);
    font-weight: var(--font-weight-medium);
}

.visual-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    transition: all 0.3s var(--transition-smooth);
}

.visual-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.card-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.visual-card h3 {
    font-size: 24px;
    font-weight: var(--font-weight-semibold);
    margin-bottom: 15px;
}

.visual-card p {
    color: var(--text-gray);
    font-size: 16px;
}

/* Mission Section */
.mission {
    background: var(--tertiary-black);
}

.mission-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.mission-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 40px;
    transition: all 0.3s var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.mission-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--accent-gradient);
    transform: translateX(-100%);
    transition: transform 0.3s var(--transition-smooth);
}

.mission-card:hover::before {
    transform: translateX(0);
}

.mission-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.card-number {
    font-size: 18px;
    font-weight: var(--font-weight-bold);
    color: var(--accent-blue);
    margin-bottom: 20px;
}

.mission-card h3 {
    font-size: 24px;
    font-weight: var(--font-weight-semibold);
    margin-bottom: 15px;
    color: var(--text-white);
}

.mission-card p {
    color: var(--text-gray);
    font-size: 16px;
    line-height: 1.6;
}

/* Projects Section */
.projects {
    background: linear-gradient(135deg, var(--primary-black) 0%, var(--secondary-black) 100%);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.project-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 40px;
    transition: all 0.3s var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.project-card.featured {
    grid-column: span 2;
    background: var(--accent-gradient);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.project-category {
    display: inline-block;
    font-size: 12px;
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent-blue);
    background: rgba(0, 122, 255, 0.1);
    padding: 6px 12px;
    border-radius: 20px;
    margin-bottom: 20px;
}

.project-card.featured .project-category {
    color: var(--text-white);
    background: rgba(255, 255, 255, 0.2);
}

.project-title {
    font-size: 24px;
    font-weight: var(--font-weight-semibold);
    margin-bottom: 15px;
    color: var(--text-white);
}

.project-description {
    color: var(--text-gray);
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 30px;
}

.project-card.featured .project-description {
    color: rgba(255, 255, 255, 0.8);
}

.project-link {
    background: transparent;
    border: 2px solid var(--accent-blue);
    color: var(--accent-blue);
    padding: 12px 24px;
    border-radius: 25px;
    font-size: 14px;
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all 0.3s var(--transition-smooth);
}

.project-card.featured .project-link {
    border-color: var(--text-white);
    color: var(--text-white);
}

.project-link:hover {
    background: var(--accent-blue);
    color: var(--text-white);
    transform: translateX(10px);
}

.project-card.featured .project-link:hover {
    background: var(--text-white);
    color: var(--primary-black);
}

/* Contact Section */
.contact {
    background: var(--tertiary-black);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 40px;
}

.contact-icon {
    font-size: 24px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    border-radius: 15px;
    flex-shrink: 0;
}

.contact-details h3 {
    font-size: 18px;
    font-weight: var(--font-weight-semibold);
    margin-bottom: 5px;
    color: var(--text-white);
}

.contact-details p {
    color: var(--text-gray);
    font-size: 16px;
    line-height: 1.4;
}

/* Form Styles */
.contact-form {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 40px;
}

.form-group {
    position: relative;
    margin-bottom: 30px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 20px 0 10px 0;
    background: transparent;
    border: none;
    border-bottom: 2px solid var(--quaternary-gray);
    color: var(--text-white);
    font-size: 16px;
    font-family: var(--font-family);
    transition: all 0.3s var(--transition-smooth);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-bottom-color: var(--accent-blue);
}

.form-group label {
    position: absolute;
    top: 20px;
    left: 0;
    color: var(--text-gray);
    font-size: 16px;
    pointer-events: none;
    transition: all 0.3s var(--transition-smooth);
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:focus + label,
.form-group textarea:not(:placeholder-shown) + label {
    top: 0;
    font-size: 12px;
    color: var(--accent-blue);
}

/* Footer */
.footer {
    background: var(--primary-black);
    padding: 80px 0 40px;
    border-top: 1px solid var(--glass-border);
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--container-padding);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 80px;
    margin-bottom: 40px;
}

.footer-tagline {
    color: var(--text-gray);
    font-size: 16px;
    margin-top: 10px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
}

.footer-column h4 {
    font-size: 18px;
    font-weight: var(--font-weight-semibold);
    margin-bottom: 20px;
    color: var(--text-white);
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: 10px;
}

.footer-column a {
    color: var(--text-gray);
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s var(--transition-smooth);
}

.footer-column a:hover {
    color: var(--accent-blue);
}

.footer-bottom {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid var(--glass-border);
    color: var(--text-gray);
    font-size: 14px;
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s var(--transition-smooth);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-container {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    max-width: 800px;
    max-height: 90vh;
    width: 90%;
    margin: 20px;
    position: relative;
    overflow: hidden;
    transform: scale(0.8) translateY(50px);
    transition: all 0.3s var(--transition-spring);
}

.modal-overlay.active .modal-container {
    transform: scale(1) translateY(0);
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    color: var(--text-white);
    font-size: 24px;
    font-weight: var(--font-weight-light);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s var(--transition-smooth);
    z-index: 10001;
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.modal-content {
    padding: 40px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    margin-bottom: 30px;
}

.modal-category {
    display: inline-block;
    font-size: 12px;
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent-blue);
    background: rgba(0, 122, 255, 0.1);
    padding: 6px 12px;
    border-radius: 20px;
    margin-bottom: 15px;
}

.modal-title {
    font-size: 36px;
    font-weight: var(--font-weight-bold);
    color: var(--text-white);
    margin-bottom: 15px;
    line-height: 1.2;
}

.modal-subtitle {
    font-size: 18px;
    color: var(--text-gray);
    margin-bottom: 30px;
    line-height: 1.6;
}

.modal-section {
    margin-bottom: 40px;
}

.modal-section h3 {
    font-size: 24px;
    font-weight: var(--font-weight-semibold);
    color: var(--text-white);
    margin-bottom: 20px;
    position: relative;
}

.modal-section h3::before {
    content: '';
    position: absolute;
    left: -20px;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 20px;
    background: var(--accent-gradient);
    border-radius: 2px;
}

.modal-section p {
    font-size: 16px;
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 20px;
}

.modal-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.modal-feature {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 15px;
    padding: 20px;
    transition: all 0.3s var(--transition-smooth);
}

.modal-feature:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-5px);
}

.modal-feature h4 {
    font-size: 18px;
    font-weight: var(--font-weight-semibold);
    color: var(--text-white);
    margin-bottom: 10px;
}

.modal-feature p {
    font-size: 14px;
    color: var(--text-gray);
    margin-bottom: 0;
}

.modal-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 30px;
    margin: 30px 0;
    padding: 30px;
    background: rgba(0, 122, 255, 0.05);
    border-radius: 15px;
    border: 1px solid rgba(0, 122, 255, 0.1);
}

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

.modal-stat-number {
    font-size: 32px;
    font-weight: var(--font-weight-bold);
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 10px;
}

.modal-stat-label {
    font-size: 14px;
    color: var(--text-gray);
    font-weight: var(--font-weight-medium);
}

.modal-cta {
    text-align: center;
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid var(--glass-border);
}

.modal-cta .cta-button {
    margin: 0 10px;
}

/* Custom Scrollbar for Modal */
.modal-content::-webkit-scrollbar {
    width: 6px;
}

.modal-content::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

.modal-content::-webkit-scrollbar-thumb {
    background: var(--accent-blue);
    border-radius: 10px;
}

.modal-content::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 122, 255, 0.8);
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --section-padding: 80px 0;
        --container-padding: 0 20px;
    }
    
    .nav-menu {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-title {
        font-size: 48px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    /* Optimize futuristic effects for mobile */
    .tech-ring {
        opacity: 0.6;
    }
    
    .tech-ring-1 {
        width: 200px;
        height: 200px;
    }
    
    .tech-ring-2 {
        width: 150px;
        height: 150px;
    }
    
    .tech-ring-3 {
        width: 100px;
        height: 100px;
    }
    
    .data-stream {
        height: 1px;
    }
    
    .particle-field {
        opacity: 0.5;
        background-size: 200px 100px;
    }
    
    .hero::after {
        opacity: 0.3;
    }
    
    .content-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
    
    .mission-cards {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .project-card.featured {
        grid-column: span 1;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    /* Modal Responsive */
    .modal-container {
        width: 95%;
        margin: 10px;
    }
    
    .modal-content {
        padding: 30px 20px;
    }
    
    .modal-title {
        font-size: 28px;
    }
    
    .modal-features {
        grid-template-columns: 1fr;
    }
    
    .modal-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 36px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .text-large {
        font-size: 20px;
    }
    
    .visual-card,
    .mission-card,
    .project-card,
    .contact-form {
        padding: 30px;
    }
}

/* Animation Classes for JavaScript */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s var(--transition-smooth);
}

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

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.8s var(--transition-smooth);
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.8s var(--transition-smooth);
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

.scale-in {
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.8s var(--transition-smooth);
}

.scale-in.visible {
    opacity: 1;
    transform: scale(1);
}