/* Modern Health-Tech CSS for Seatronix */
:root {
    --primary-color: #2563eb;
    --secondary-color: #06b6d4;
    --accent-color: #10b981;
    --dark-color: #0f172a;
    --light-color: #f8fafc;
    --text-color: #334155;
    --text-light: #64748b;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
    --gradient-accent: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    overflow-x: hidden;
    background: #ffffff;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(226, 232, 240, 0.5);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
}



.nav-logo h2 {
    color: var(--dark-color);
    font-weight: 800;
    font-size: 1.5rem;
}

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

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

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

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

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

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--dark-color);
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 20px 50px;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.1;
}

.spine-animation {
    position: absolute;
    right: 10%;
    top: 50%;
    transform: translateY(-50%);
    width: 200px;
    height: 400px;
    background: linear-gradient(to bottom, 
        transparent 0%, 
        rgba(37, 99, 235, 0.3) 20%, 
        rgba(6, 182, 212, 0.3) 50%, 
        rgba(16, 185, 129, 0.3) 80%, 
        transparent 100%);
    border-radius: 100px;
    animation: spineGlow 3s ease-in-out infinite alternate;
}

@keyframes spineGlow {
    0% { opacity: 0.3; transform: translateY(-50%) scale(1); }
    100% { opacity: 0.6; transform: translateY(-50%) scale(1.05); }
}

.hero-content {
    flex: 1;
    max-width: 600px;
    z-index: 2;
}

.hero-badge {
    display: inline-block;
    background: rgba(37, 99, 235, 0.2);
    border: 1px solid rgba(37, 99, 235, 0.3);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    margin-bottom: 2rem;
    font-size: 0.9rem;
    backdrop-filter: blur(10px);
}

.hero h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero h2 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #06b6d4;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: #10b981;
    font-weight: 500;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.7;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.5rem 1rem;
    border-radius: 25px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-icon {
    font-size: 1.2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2;
}

.smart-chair {
    position: relative;
    width: 300px;
    height: 400px;
}

.chair-base {
    width: 200px;
    height: 300px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.3) 0%, rgba(6, 182, 212, 0.3) 100%);
    border-radius: 20px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.sensor-points {
    position: absolute;
    width: 100%;
    height: 100%;
}

.sensor {
    position: absolute;
    width: 12px;
    height: 12px;
    background: #10b981;
    border-radius: 50%;
    animation: sensorPulse 2s ease-in-out infinite;
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.5);
}

.sensor-1 { top: 20%; left: 30%; animation-delay: 0s; }
.sensor-2 { top: 40%; right: 25%; animation-delay: 0.5s; }
.sensor-3 { bottom: 30%; left: 35%; animation-delay: 1s; }
.sensor-4 { bottom: 15%; right: 30%; animation-delay: 1.5s; }

@keyframes sensorPulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.5); opacity: 0.7; }
}

.data-flow {
    position: absolute;
    width: 100%;
    height: 100%;
}

.data-line {
    position: absolute;
    height: 2px;
    background: linear-gradient(90deg, transparent, #06b6d4, transparent);
    animation: dataFlow 3s linear infinite;
}

.line-1 { top: 25%; left: 40%; width: 60px; animation-delay: 0s; }
.line-2 { top: 45%; right: 20%; width: 80px; animation-delay: 1s; }
.line-3 { bottom: 25%; left: 30%; width: 70px; animation-delay: 2s; }

@keyframes dataFlow {
    0% { opacity: 0; transform: translateX(-20px); }
    50% { opacity: 1; }
    100% { opacity: 0; transform: translateX(20px); }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* About Section */
.about-section {
    padding: 100px 0;
    background: var(--light-color);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--dark-color);
}

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

.vision-mission {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.vm-item {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
}

.vm-item h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.vm-item i {
    font-size: 1.5rem;
}

.incubation-badges {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.badge {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-lg);
    border-left: 5px solid var(--primary-color);
}

.badge-icon {
    font-size: 2.5rem;
}

.badge-text h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.badge-text p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Impact Section */
.impact-section {
    padding: 100px 0;
    background: white;
}

.impact-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.impact-stat {
    text-align: center;
    padding: 2rem;
    background: var(--gradient-primary);
    color: white;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
}

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

.impact-item {
    background: var(--light-color);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: transform 0.3s ease;
}

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

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

.impact-item h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

/* Technology Section */
.technology-section {
    padding: 100px 0;
    background: var(--light-color);
}

.tech-tabs {
    max-width: 1000px;
    margin: 0 auto;
}

.tab-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 24px;
    border: 2px solid var(--primary-color);
    background: transparent;
    color: var(--primary-color);
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.tab-btn.active,
.tab-btn:hover {
    background: var(--primary-color);
    color: white;
}

.tab-content {
    background: white;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.tab-panel {
    display: none;
    padding: 3rem;
}

.tab-panel.active {
    display: block;
}

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

.tech-text h3 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--dark-color);
}

.tech-features {
    list-style: none;
}

.tech-features li {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 0;
    border-bottom: 1px solid #e2e8f0;
    font-size: 1.1rem;
}

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

.tech-features i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.tech-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 300px;
}

.hardware-diagram,
.app-mockup,
.design-showcase,
.future-vision {
    position: relative;
    width: 250px;
    height: 250px;
    background: var(--gradient-secondary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sensor-node,
.phone-frame,
.modular-parts,
.ai-nodes {
    position: absolute;
    font-size: 2rem;
}

.sensor-node {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: float 3s ease-in-out infinite;
}

.node-1 { top: 20%; left: 20%; animation-delay: 0s; }
.node-2 { top: 20%; right: 20%; animation-delay: 0.5s; }
.node-3 { bottom: 20%; left: 20%; animation-delay: 1s; }
.node-4 { bottom: 20%; right: 20%; animation-delay: 1.5s; }

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

/* Team Section */
.team-section {
    padding: 100px 0;
    background: white;
}

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

.team-member {
    background: var(--light-color);
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    transition: transform 0.3s ease;
    box-shadow: var(--shadow-md);
}

.team-member:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.team-member.advisor {
    border: 2px solid var(--accent-color);
}

.member-avatar {
    width: 100px;
    height: 100px;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
}

.avatar-placeholder {
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
}

.team-member h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.member-role {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.member-bio {
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.member-social {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.member-social a {
    color: var(--text-light);
    font-size: 1.2rem;
    transition: color 0.3s ease;
}

.member-social a:hover {
    color: var(--primary-color);
}

/* Recognitions Section */
.recognitions-section {
    padding: 100px 0;
    background: var(--light-color);
}

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

.recognition-card {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease;
}

.recognition-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

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

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

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

/* Contact Section */
.contact-section {
    padding: 100px 0;
    background: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--light-color);
    border-radius: 15px;
}

.contact-icon {
    font-size: 1.5rem;
    margin-top: 0.25rem;
}

.contact-details h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.contact-details p {
    color: var(--text-light);
    line-height: 1.6;
}

.social-contact {
    border: 2px solid var(--primary-color);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(6, 182, 212, 0.05) 100%);
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    justify-content: flex-start;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 1.2rem;
}

.social-link.instagram {
    background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
    color: white;
}

.social-link.linkedin {
    background: #0077b5;
    color: white;
}

.social-link.twitter {
    background: #000000;
    color: white;
}

.social-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.social-link.instagram:hover {
    box-shadow: 0 8px 20px rgba(240, 148, 51, 0.4);
}

.social-link.linkedin:hover {
    box-shadow: 0 8px 20px rgba(0, 119, 181, 0.4);
}

.social-link.twitter:hover {
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.contact-form {
    background: var(--light-color);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    background: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    background: var(--dark-color);
    color: white;
    padding: 50px 0 20px;
}

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

.footer-logo {
    margin-bottom: 1rem;
}



.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

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

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

.footer-section a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: white;
}

.footer-social {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.footer-social a {
    color: #94a3b8;
    font-size: 1.5rem;
    transition: color 0.3s ease;
}

.footer-social a:hover {
    color: var(--secondary-color);
}

.footer-bottom {
    border-top: 1px solid #334155;
    padding-top: 1rem;
    text-align: center;
    color: #94a3b8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-lg);
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero {
        flex-direction: column;
        text-align: center;
        padding: 120px 20px 50px;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero h2 {
        font-size: 1.5rem;
    }
    
    .hero-visual {
        margin-top: 2rem;
    }
    
    .smart-chair {
        width: 250px;
        height: 300px;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .about-content,
    .tech-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .vision-mission {
        grid-template-columns: 1fr;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .tab-buttons {
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .tab-btn {
        padding: 8px 16px;
        font-size: 0.9rem;
    }
    
    .impact-stats {
        grid-template-columns: 1fr;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
}