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

:root {
    --primary-color: #0066ff;
    --primary-dark: #0052cc;
    --secondary-color: #00d4ff;
    --dark-bg: #0a0e27;
    --dark-blue: #1a1f3a;
    --light-text: #ffffff;
    --gray-text: #a0aec0;
    --accent-color: #ff6b00;
    --success-color: #00d97e;
    --card-bg: #1e2542;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #0066ff 0%, #00d4ff 100%);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 15px 40px rgba(0, 102, 255, 0.4);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--dark-bg);
    color: var(--light-text);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar.scrolled {
    background: rgba(10, 14, 39, 0.98);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    text-decoration: none;
    letter-spacing: 1px;
    transition: color 0.3s ease;
}

.logo:hover {
    color: var(--primary-color);
}

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

.nav-link {
    color: var(--gray-text);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-link:hover {
    color: var(--light-text);
}

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

.cta-nav {
    background: var(--gradient-2);
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    color: var(--light-text);
}

.cta-nav::after {
    display: none;
}

.cta-nav:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 102, 255, 0.4);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--light-text);
    margin: 3px 0;
    transition: all 0.3s ease;
    border-radius: 3px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: var(--gradient-1);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 800"><defs><pattern id="grid" width="40" height="40" patternUnits="userSpaceOnUse"><path d="M 40 0 L 0 0 0 40" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.5;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at center, transparent 0%, rgba(10, 14, 39, 0.8) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem;
    animation: fadeInUp 1s ease;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--gray-text);
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    padding: 1rem 2.5rem;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    display: inline-block;
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--gradient-2);
    color: var(--light-text);
    box-shadow: 0 5px 20px rgba(0, 102, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 102, 255, 0.5);
}

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

.btn-secondary:hover {
    background: var(--light-text);
    color: var(--dark-bg);
    transform: translateY(-3px);
}

/* Section Styles */
.section {
    padding: 6rem 0;
    position: relative;
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.title-underline {
    width: 80px;
    height: 4px;
    background: var(--gradient-2);
    margin: 0 auto 1rem;
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--gray-text);
    max-width: 600px;
    margin: 0 auto;
}

/* About Section */
.about-section {
    background: var(--dark-blue);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text p {
    font-size: 1.1rem;
    color: var(--gray-text);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: 10px;
    transition: transform 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

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

.about-images {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-left: 2rem;
}

.about-image {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-image img {
    max-width: 300px;
    height: auto;
    max-height: 400px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
    background: transparent;
}

.about-image:hover img {
    transform: scale(1.05);
}

/* Features Section */
.features-section {
    background: var(--dark-bg);
}

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

.feature-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}


.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

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

/* Technology Section */
.technology-section {
    background: var(--dark-blue);
}

.technology-content {
    display: grid;
    gap: 2rem;
}

.tech-item {
    display: flex;
    gap: 2rem;
    padding: 2rem;
    background: var(--card-bg);
    border-radius: 15px;
    align-items: flex-start;
    transition: all 0.3s ease;
    border-left: 4px solid var(--primary-color);
}

.tech-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow);
}

.tech-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    opacity: 0.3;
    min-width: 80px;
}

.tech-details h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--secondary-color);
}

.tech-details p {
    color: var(--gray-text);
    line-height: 1.8;
}

/* Applications Section */
.applications-section {
    background: var(--dark-bg);
}

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

.application-card {
    background: var(--gradient-2);
    padding: 2.5rem 2rem;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.application-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.2);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.application-card:hover {
    transform: translateY(-10px) scale(1.05);
}

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

.application-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
    position: relative;
    z-index: 1;
}

.application-card p {
    color: rgba(255, 255, 255, 0.9);
    position: relative;
    z-index: 1;
}

/* Safety Section */
.safety-section {
	background: var(--dark-bg);
}

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

.safety-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.safety-card:hover {
    border-color: var(--success-color);
    transform: translateY(-5px);
}


.safety-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.75rem;
    color: var(--secondary-color);
}

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

/* Comparison Section */
.comparison-section {
    background: var(--dark-bg);
}

.comparison-table-wrapper {
    overflow-x: auto;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
}

.comparison-table thead {
    background: var(--gradient-2);
}

.comparison-table th {
    padding: 1.5rem;
    text-align: left;
    font-weight: 600;
    font-size: 1.1rem;
}

.comparison-table td {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.comparison-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.03);
}

.comparison-table .highlight {
    background: rgba(0, 102, 255, 0.1);
    font-weight: 600;
}

/* Gallery Section */
.gallery-section {
    background: var(--dark-blue);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    align-items: start;
}

.gallery-item {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.gallery-item:hover {
    transform: scale(1.05);
}

.gallery-item img {
    width: 100%;
    height: 300px;
    object-fit: contain;
    display: block;
    background: var(--card-bg);
    cursor: pointer;
    transition: transform 0.3s ease;
}

.gallery-item img:hover {
    transform: scale(1.02);
}

.gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
    padding: 1.5rem 1rem;
    color: var(--light-text);
    font-weight: 600;
    text-align: center;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    animation: fadeIn 0.3s ease;
}

.modal-content {
    margin: auto;
    display: block;
    max-width: 90%;
    max-height: 90%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 10px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8);
}

#modalCaption {
    margin: auto;
    display: block;
    width: 80%;
    max-width: 700px;
    text-align: center;
    color: var(--light-text);
    padding: 10px 0;
    height: 150px;
    font-size: 1.2rem;
    font-weight: 600;
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
}

.close {
    position: absolute;
    top: 15px;
    right: 35px;
    color: var(--light-text);
    font-size: 40px;
    font-weight: bold;
    transition: 0.3s;
    cursor: pointer;
    z-index: 2001;
}

.close:hover,
.close:focus {
    color: var(--secondary-color);
    text-decoration: none;
    cursor: pointer;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Status Section */
.status-section {
    background: var(--dark-bg);
}

.status-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.status-item {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    border-top: 4px solid var(--primary-color);
}

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

.status-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.status-item h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--secondary-color);
}

.status-item p {
    color: var(--gray-text);
}

.status-info {
    text-align: center;
    padding: 2rem;
    background: var(--gradient-2);
    border-radius: 15px;
    font-size: 1.1rem;
}

/* Simplified Development Status text */
.status-text {
	text-align: center;
	max-width: 800px;
	margin: 0 auto 2rem;
	color: var(--gray-text);
	font-size: 1.1rem;
}

.video-fallback {
	text-align: center;
	margin-top: 1rem;
}

/* Media Section */
.media-section {
    background: var(--dark-blue);
}

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

.media-card {
    background: var(--card-bg);
    padding: 3rem 2rem;
    border-radius: 15px;
    text-align: center;
    text-decoration: none;
    color: var(--light-text);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.media-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.media-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.media-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--secondary-color);
}

.media-card p {
    color: var(--gray-text);
}

/* Team Section */
.team-section {
    background: var(--dark-bg);
}

.team-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.team-member {
    background: var(--card-bg);
    padding: 3rem 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.team-member h3 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--secondary-color);
}

.team-role {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.team-bio {
    color: var(--gray-text);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.team-contact {
    color: var(--light-text);
    font-weight: 600;
}

/* Contact Section */
.contact-section {
    background: var(--dark-blue);
}

.contact-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.contact-card {
    background: var(--card-bg);
    padding: 3rem 2rem;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.contact-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.contact-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.contact-card a {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 600;
    transition: color 0.3s ease;
}

.contact-card a:hover {
    color: var(--secondary-color);
}

/* One-line contact layout */
.contact-inline {
	text-align: center;
	white-space: nowrap;
	margin-top: 1rem;
	font-size: 1.05rem;
}

.contact-inline a {
	color: var(--primary-color);
	text-decoration: none;
}

.contact-inline a:hover {
	color: var(--secondary-color);
}

/* New responsive contact list */
.contact-list {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
    margin-top: 1rem;
    text-align: center;
}

.contact-item {
    font-size: 1.05rem;
    color: var(--gray-text);
}

.contact-item .label {
    color: var(--light-text);
    font-weight: 600;
    margin-right: 0.25rem;
}

.contact-item a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    padding: 0.25rem 0.25rem; /* improves tap target */
}

.contact-item a:hover {
    color: var(--secondary-color);
}

/* Unified stacked layout for all sizes */
.contact-item {
    background: var(--card-bg);
    padding: 0.875rem 1rem;
    border-radius: 10px;
}

/* Footer */
.footer {
    background: var(--dark-bg);
    padding: 3rem 0 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.footer-section h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--light-text);
}

.footer-section p {
    color: var(--gray-text);
    line-height: 1.8;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
    color: var(--gray-text);
    line-height: 1.8;
}

.footer-section ul li a {
    color: var(--gray-text);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--gray-text);
}

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

/* Responsive Design */
@media (max-width: 968px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background: rgba(10, 14, 39, 0.98);
        width: 100%;
        text-align: center;
        transition: left 0.3s ease;
        padding: 2rem 0;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    }

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

    .mobile-menu-toggle {
        display: flex;
    }

    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

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

    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(8px, -8px);
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .about-images {
        grid-template-columns: 1fr;
        margin-left: 0;
    }
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.5rem;
    }

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

@media (max-width: 640px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.3rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .section {
        padding: 4rem 0;
    }

    .features-grid,
    .applications-grid,
    .safety-grid {
        grid-template-columns: 1fr;
    }

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

    .gallery-item img {
        height: 220px;
    }

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

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

    .contact-inline {
        white-space: normal;
        line-height: 1.6;
    }

    .contact-list {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }

    .contact-item {
        background: var(--card-bg);
        padding: 0.875rem 1rem;
        border-radius: 10px;
    }
}