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

:root {
    --primary-color: #3A4965;
    --accent-color: #f9d893;
    --text-light: #ffffff;
    --text-dark: #333333;
    --section-spacing: 100px;
    --shadow-light: 0 5px 15px rgba(0, 0, 0, 0.05);
    --shadow-medium: 0 10px 25px rgba(0, 0, 0, 0.1);
    --border-radius: 10px;
}

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: #f9f9f9;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

h1, h2, h3, h4, h5, h6 {
    margin-bottom: 0.5em;
    font-weight: 700;
    line-height: 1.2;
}

p {
    margin-bottom: 1.5rem;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: var(--accent-color);
}

/* Header Styles */
header {
    background-color: var(--primary-color);
    padding: 0;
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    height: 100px;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo img {
    height: 80px;
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 25px;
}

nav ul li a {
    color: var(--text-light);
    font-weight: 500;
    font-size: 1rem;
    position: relative;
}

nav ul li a.active {
    color: var(--accent-color);
}

nav ul li a:after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    left: 0;
    bottom: -5px;
    transition: width 0.3s;
}

nav ul li a:hover,
nav ul li a.active {
    color: var(--accent-color);
}

nav ul li a:hover:after,
nav ul li a.active:after {
    width: 100%;
}

/* Hero Section Styles */
#hero {
    background: linear-gradient(rgba(58, 73, 101, 0.7), rgba(58, 73, 101, 0.7)), url('/images/Innovation_background.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: var(--text-light);
    padding: 150px 0 150px;
    text-align: center;
}

#hero h1 {
    font-size: 4rem;
    margin-top: 50px;
    margin-bottom: 0.5rem;
    color: var(--accent-color);
    font-weight: 700;
    line-height: 1.2;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
}

#hero h2 {
    font-size: 2.2rem;
    margin-bottom: 1rem;
    color: var(--text-light);
    font-weight: 500;
    line-height: 1.3;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.6);
    opacity: 0.95;
}

#hero h2:after {
    display: none;
}

/* Section Styles */
section {
    padding: var(--section-spacing) 0;
}

section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary-color);
    position: relative;
    padding-bottom: 15px;
}

section h2:after {
    content: '';
    position: absolute;
    width: 80px;
    height: 3px;
    background: var(--accent-color);
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

/* iPSC Technology Section */
.tech-section {
    background-color: #ffffff;
}

.video-container {
    display: flex;
    justify-content: center;
    margin: 40px 0;
}

.video-container iframe {
    max-width: 100%;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
}

.tech-description {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.tech-description p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-dark);
}

/* Summary Section (Accordion) */
.summary-section {
    background: #f9fafd;
    padding: 60px 0;
}

.summary-content {
    display: flex;
    align-items: center;
    gap: 40px;
    background: #ffffff;
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow-light);
    margin-bottom: 30px;
}

.summary-image {
    width: 200px;
    height: auto;
    border-radius: 8px;
    object-fit: contain;
    flex-shrink: 0;
}

.summary-text {
    flex: 1;
}

.summary-text p {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 20px;
    color: var(--text-dark);
}

/* Button Styles */
.btn-primary, .btn-secondary {
    cursor: pointer;
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    margin-top: 16px;
}

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

.btn-primary:hover {
    background-color: #2e3a55;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: #ccc;
    color: #333;
}

.btn-secondary:hover {
    background-color: #bbb;
}

/* Details Content (Accordion) */
.details-content {
    background: #ffffff;
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow-light);
    margin-top: 20px;
    font-size: 1rem;
    line-height: 1.7;
    animation: slideDown 0.5s ease;
}

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

.details-content h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 20px;
    margin-top: 30px;
}

.details-content h3:first-child {
    margin-top: 0;
}

.details-content ul {
    margin-left: 20px;
    margin-bottom: 20px;
}

.details-content li {
    margin-bottom: 10px;
    line-height: 1.6;
}

.details-content strong {
    color: var(--primary-color);
}

/* Coming Soon Sections */
.coming-soon-section {
    padding: 80px 0;
    text-align: center;
}

.coming-soon-section.alt-bg {
    background-color: #f8f9fa;
}

.coming-soon-content {
    max-width: 600px;
    margin: 0 auto;
}

.coming-soon-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    opacity: 0.8;
}

.coming-soon-content h3 {
    font-size: 2rem;
    color: var(--accent-color);
    margin-bottom: 20px;
    font-weight: 600;
}

.coming-soon-content p {
    font-size: 1.2rem;
    color: var(--text-dark);
    opacity: 0.8;
    line-height: 1.6;
}

/* Footer Styles */
footer {
    background-color: var(--primary-color);
    color: var(--text-light);
    padding: 60px 0 20px;
}

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

.footer-section h3 {
    color: var(--accent-color);
    font-size: 1.3rem;
    margin-bottom: 20px;
    font-weight: 600;
}

.footer-section ul {
    list-style: none;
    padding: 0;
}

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

.footer-section ul li a {
    color: var(--text-light);
    font-size: 0.95rem;
    transition: color 0.3s ease;
    opacity: 0.8;
}

.footer-section ul li a:hover {
    color: var(--accent-color);
    opacity: 1;
}

/* Contact Information Styles */
.footer-contact .contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.contact-icon {
    font-size: 1.2rem;
    margin-top: 2px;
    flex-shrink: 0;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.contact-label {
    font-size: 0.85rem;
    color: var(--accent-color);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contact-value {
    font-size: 0.95rem;
    color: var(--text-light);
    opacity: 0.9;
    line-height: 1.4;
}

.contact-link {
    color: var(--text-light);
    text-decoration: none;
    transition: all 0.3s ease;
    opacity: 0.9;
}

.contact-link:hover {
    color: var(--accent-color);
    opacity: 1;
    text-decoration: underline;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 20px;
    text-align: center;
}

.footer-bottom p {
    margin: 0;
    opacity: 0.8;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 992px) {
    .summary-content {
        flex-direction: column;
        text-align: center;
    }
    
    .summary-image {
        width: 250px;
    }
    
    .footer-content {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 25px;
    }
}

@media (max-width: 768px) {
    #hero h1 {
        font-size: 2.8rem;
    }
    
    #hero h2 {
        font-size: 1.6rem;
    }
    
    section h2 {
        font-size: 2rem;
    }
    
    nav ul {
        display: none;
    }
    
    /* Mobile header container adjustment */
    header .container {
        padding: 0 10px 0 0;
    }
    
    /* Mobile logo position adjustment */
    .logo {
        margin-left: -10px;
    }
    
    .video-container iframe {
        width: 100%;
        height: 250px;
    }
    
    .summary-content {
        padding: 30px 20px;
        gap: 25px;
    }
    
    .summary-image {
        width: 200px;
    }
    
    .details-content {
        padding: 30px 20px;
    }
    
    .coming-soon-icon {
        font-size: 3rem;
    }
    
    .coming-soon-content h3 {
        font-size: 1.5rem;
    }
    
    .coming-soon-content p {
        font-size: 1rem;
    }
    
    /* Footer Mobile */
    .footer-content {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: 20px;
    }
    
    .footer-section h3 {
        font-size: 1.1rem;
    }
    
    .footer-section ul li a {
        font-size: 0.9rem;
    }
    
    .footer-contact .contact-details {
        gap: 15px;
    }
    
    .contact-item {
        gap: 10px;
    }
    
    .contact-icon {
        font-size: 1rem;
    }
    
    .contact-label {
        font-size: 0.8rem;
    }
    
    .contact-value {
        font-size: 0.9rem;
    }
    
    /* Innovation Section Mobile */
    .innovation-subsection {
        padding: 30px 20px;
        margin-bottom: 25px;
    }
    
    .innovation-subsection h3 {
        font-size: 1.5rem;
    }
    
    .innovation-subsection > p {
        font-size: 1rem;
    }
    
    .innovation-subsection .tech-features li {
        padding: 10px 0 10px 25px;
        font-size: 0.95rem;
    }
    
    .innovation-subsection .note {
        font-size: 0.9rem;
        padding: 12px 15px;
    }
}

@media (max-width: 480px) {
    #hero h1 {
        font-size: 2.2rem;
    }
    
    #hero h2 {
        font-size: 1.3rem;
    }
    
    .video-container iframe {
        height: 200px;
    }
    
    .summary-content {
        padding: 20px 15px;
    }
    
    .summary-image {
        width: 150px;
    }
    
    .details-content {
        padding: 20px 15px;
    }
    
    .btn-primary, .btn-secondary {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
}

/* Innovation Section Styles */
.innovation-section {
    background-color: #ffffff;
    padding: 80px 0;
}

.innovation-subsection {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px;
    background: #f8f9fa;
    border-radius: 15px;
    box-shadow: var(--shadow-light);
    border-left: 5px solid var(--primary-color);
    margin-bottom: 30px;
}

.innovation-subsection h3 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 20px;
    font-weight: 600;
    line-height: 1.3;
}

.innovation-subsection > p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-dark);
    margin-bottom: 25px;
    opacity: 0.9;
}

.innovation-subsection .tech-features {
    list-style: none;
    margin: 25px 0;
    padding: 0;
}

.innovation-subsection .tech-features li {
    position: relative;
    padding: 12px 0 12px 30px;
    color: var(--text-dark);
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 10px;
    border-bottom: 1px solid rgba(58, 73, 101, 0.1);
}

.innovation-subsection .tech-features li:last-child {
    border-bottom: none;
}

.innovation-subsection .tech-features li:before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 12px;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.1rem;
}

.innovation-subsection .tech-features li strong {
    color: var(--primary-color);
    font-weight: 600;
}

.innovation-subsection .note {
    font-size: 0.95rem;
    color: rgba(58, 73, 101, 0.8);
    font-style: italic;
    background: rgba(58, 73, 101, 0.05);
    padding: 15px 20px;
    border-radius: 8px;
    border-left: 3px solid var(--accent-color);
    margin-top: 25px;
    margin-bottom: 0;
}