/* Global Styles */
:root {
    --deep-blue: #1a237e;
    --light-blue: #3949ab;
    --white: #ffffff;
    --gray: #f5f5f5;
    --dark-gray: #333333;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    line-height: 1.6;
    color: var(--dark-gray);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: var(--deep-blue);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.logo h1 {
    color: var(--white);
    font-size: 1.8rem;
}

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

.nav-links li {
    margin: 0 1.5rem;
}

.nav-links a {
    color: var(--white);
    text-decoration: none;
    font-size: 1.1rem;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #90caf9;
}

.burger {
    display: none;
    cursor: pointer;
}

.burger div {
    width: 25px;
    height: 3px;
    background-color: var(--white);
    margin: 5px;
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(26, 35, 126, 0.9), rgba(26, 35, 126, 0.9)),
                url('../images/hero-bg.jpg') center/cover;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    padding: 0 1rem;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease;
}

.hero-content p {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease 0.2s;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: var(--white);
    color: var(--deep-blue);
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: transform 0.3s ease;
    animation: fadeInUp 1s ease 0.4s;
}

.cta-button:hover {
    transform: translateY(-3px);
}

/* Products Section */
.products {
    padding: 5rem 2rem;
    background-color: var(--gray);
}

.products h2 {
    text-align: center;
    color: var(--deep-blue);
    margin-bottom: 3rem;
    font-size: 2.5rem;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.product-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.product-image {
    width: 200px;
    height: 200px;
    margin-bottom: 1.5rem;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.product-card:hover {
    transform: translateY(-10px);
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-card i {
    font-size: 3rem;
    color: var(--deep-blue);
    margin-bottom: 1rem;
}

.product-card h3 {
    color: var(--deep-blue);
    margin: 1rem 0;
    font-size: 1.3rem;
}

.product-card p {
    color: var(--dark-gray);
    line-height: 1.4;
}

/* Services Section */
.services {
    padding: 5rem 2rem;
    background-color: var(--white);
}

.services h2 {
    text-align: center;
    color: var(--deep-blue);
    margin-bottom: 3rem;
    font-size: 2.5rem;
}

.services-grid {
    display: grid;
    grid-template-columns: minmax(300px, 600px);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    justify-content: center;
}

.service-card {
    background-color: var(--gray);
    padding: 3rem;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s ease;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.service-card:hover {
    transform: translateY(-10px);
}

.service-card i {
    font-size: 4rem;
    color: var(--deep-blue);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    color: var(--deep-blue);
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--dark-gray);
    font-size: 1.1rem;
    line-height: 1.6;
}

/* About Section */
.about {
    padding: 5rem 2rem;
    background-color: var(--gray);
}

.about-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.about h2 {
    color: var(--deep-blue);
    margin-bottom: 2rem;
    font-size: 2.5rem;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.team-member {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    text-align: center;
}

.team-member h3 {
    color: var(--deep-blue);
    font-size: 1.2rem;
    margin: 1rem 0;
    line-height: 1.4;
}

.team-member p {
    color: var(--dark-gray);
    font-size: 1rem;
    font-weight: 500;
}

.member-image {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    margin: 0 auto 1rem;
    overflow: hidden;
    transition: transform 0.3s ease;
    border: 3px solid var(--deep-blue);
}

.member-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.team-member:hover .member-image {
    transform: scale(1.05);
}

.team-member:hover .member-image img {
    transform: scale(1.1);
}

/* Contact Section */
.contact {
    padding: 5rem 2rem;
    background-color: var(--white);
}

.contact h2 {
    text-align: center;
    color: var(--deep-blue);
    margin-bottom: 3rem;
    font-size: 2.5rem;
}

.contact-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-form input,
.contact-form textarea {
    padding: 1rem;
    border: 1px solid var(--gray);
    border-radius: 5px;
    font-size: 1rem;
}

.contact-form textarea {
    height: 150px;
    resize: vertical;
}

.submit-btn {
    padding: 1rem;
    background-color: var(--deep-blue);
    color: var(--white);
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s ease;
    position: relative;
    min-height: 45px;
}

.submit-btn:hover {
    background-color: var(--light-blue);
}

.submit-btn:disabled {
    background-color: var(--light-blue);
    cursor: not-allowed;
    opacity: 0.7;
}

.loading-spinner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.form-message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 5px;
    text-align: center;
}

.form-message.success {
    background-color: #e8f5e9;
    color: #2e7d32;
    border: 1px solid #a5d6a7;
}

.form-message.error {
    background-color: #ffebee;
    color: #c62828;
    border: 1px solid #ef9a9a;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
}

.map-container {
    align-items: flex-start;
}

.address-map-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.map-preview {
    display: block;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.map-preview:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.map-preview img {
    width: 100%;
    height: auto;
    display: block;
}

.info-item i {
    font-size: 1.5rem;
    color: var(--deep-blue);
    margin-top: 0.2rem;
}

.info-item p {
    line-height: 1.4;
    flex: 1;
}

.address-link {
    color: var(--dark-gray);
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
    position: relative;
}

.address-link:hover {
    color: var(--deep-blue);
}

.address-link::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 1px;
    bottom: -2px;
    left: 0;
    background-color: var(--deep-blue);
    transform: scaleX(0);
    transform-origin: bottom right;
    transition: transform 0.3s ease;
}

.address-link:hover::after {
    transform: scaleX(1);
    transform-origin: bottom left;
}

/* Footer */
footer {
    background-color: var(--deep-blue);
    color: var(--white);
    padding: 3rem 2rem 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.footer-section h3 {
    margin-bottom: 1rem;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

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

.footer-section a:hover {
    color: #90caf9;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    font-size: 1.5rem;
}

.footer-bottom {
    text-align: center;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

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

/* Responsive Design */
@media screen and (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .burger {
        display: block;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-content p {
        font-size: 1.2rem;
    }

    .team-member h3 {
        font-size: 1.1rem;
    }
}

/* AOS Animation Customization */
[data-aos] {
    pointer-events: none;
}

[data-aos].aos-animate {
    pointer-events: auto;
}

/* Patented Product Section */
.patented-product {
    max-width: 1200px;
    margin: 4rem auto;
    padding: 2rem;
    background-color: var(--white);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.patented-product h3 {
    color: var(--deep-blue);
    text-align: center;
    font-size: 2rem;
    margin-bottom: 2rem;
}

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

.patent-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.patent-cover {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.patent-cover:hover {
    transform: scale(1.02);
}

.patent-details {
    flex: 1;
    padding: 2rem;
}

.patent-details ul {
    list-style: none;
    margin: 1rem 0;
}

.patent-details ul li {
    margin: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.patent-details ul li:before {
    content: "•";
    color: var(--deep-blue);
    position: absolute;
    left: 0;
    font-size: 1.2rem;
}

.patent-link {
    margin-top: 1.5rem;
}

.patent-link a {
    color: var(--deep-blue);
    text-decoration: none;
    font-weight: bold;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: color 0.3s ease;
}

.patent-link a:hover {
    color: var(--light-blue);
}

@media screen and (max-width: 768px) {
    .patent-content {
        grid-template-columns: 1fr;
    }
    
    .patent-image {
        margin-bottom: 1rem;
    }
}

/* Research Paper Section */
.research-paper {
    max-width: 1200px;
    margin: 4rem auto;
    padding: 2rem;
    background-color: var(--white);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.research-paper h3 {
    color: var(--deep-blue);
    text-align: center;
    font-size: 2rem;
    margin-bottom: 2rem;
}

.research-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
    align-items: start;
}

.research-image {
    text-align: center;
    padding: 2rem;
}

.research-image i {
    font-size: 5rem;
    color: var(--deep-blue);
    animation: float 3s ease-in-out infinite;
}

.research-details {
    padding: 1rem;
}

.research-details h4 {
    color: var(--deep-blue);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.research-details p {
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.research-details ul {
    list-style: none;
    margin: 1rem 0;
}

.research-details ul li {
    margin: 0.8rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.research-details ul li:before {
    content: "→";
    color: var(--deep-blue);
    position: absolute;
    left: 0;
    font-size: 1.2rem;
}

.research-highlight {
    background-color: var(--gray);
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid var(--deep-blue);
    font-style: italic;
    margin-top: 2rem;
}

@keyframes float {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
    100% {
        transform: translateY(0);
    }
}

@media screen and (max-width: 768px) {
    .research-content {
        grid-template-columns: 1fr;
    }
    
    .research-image {
        margin-bottom: 1rem;
    }
    
    .research-details h4 {
        font-size: 1.3rem;
    }
}

.research-link {
    margin-top: 2rem;
    text-align: center;
}

.research-link a {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--deep-blue);
    text-decoration: none;
    font-weight: bold;
    padding: 0.8rem 1.5rem;
    border: 2px solid var(--deep-blue);
    border-radius: 5px;
    transition: all 0.3s ease;
}

.research-link a:hover {
    background-color: var(--deep-blue);
    color: var(--white);
}

.research-link i {
    font-size: 1rem;
}

/* Video Section */
.video-section {
    max-width: 1200px;
    margin: 4rem auto;
    padding: 2rem;
    background-color: var(--white);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.video-section h3 {
    color: var(--deep-blue);
    text-align: center;
    font-size: 2rem;
    margin-bottom: 2rem;
}

.video-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
    align-items: start;
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
    height: 0;
    overflow: hidden;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 10px;
}

.video-description {
    padding: 1rem;
}

.video-description h4 {
    color: var(--deep-blue);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.video-description p {
    line-height: 1.6;
    color: var(--dark-gray);
}

@media screen and (max-width: 768px) {
    .video-container {
        grid-template-columns: 1fr;
    }
    
    .video-description {
        padding: 1rem 0;
    }
}

/* WhatsApp Button */
.whatsapp-btn {
    position: fixed;
    bottom: 80px;
    right: 20px;
    background-color: #25D366;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    z-index: 1000;
    animation: slideIn 0.5s ease-out, pulse 2s infinite;
}

.whatsapp-btn i {
    font-size: 35px;
    animation: bounce 1s infinite;
}

.whatsapp-btn:hover {
    transform: scale(1.1);
    background-color: #128C7E;
    color: white;
    animation: none;
}

.whatsapp-btn:hover i {
    animation: none;
}

@keyframes slideIn {
    from {
        transform: translateX(100px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.4);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(37, 211, 102, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-3px);
    }
}

@media screen and (max-width: 768px) {
    .whatsapp-btn {
        width: 50px;
        height: 50px;
        bottom: 70px;
    }

    .whatsapp-btn i {
        font-size: 30px;
    }
}