:root {
    --primary: #2c3e50;
    --secondary: #3498db;
    --accent: #1abc9c;
    --light: #ecf0f1;
    --dark: #2c3e50;
    --text: #333;
    --text-light: #7f8c8d;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header & Navigation */
header {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo-container {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: 700;
    text-decoration: none;
    color: var(--primary);
}

.logo-ai {
    color: #3498db;
    background: linear-gradient(135deg, #3498db, #2c3e50);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    padding: 5px 8px;
    border-radius: 8px;
    margin-right: 5px;
}

.logo-biotex {
    color: #2c3e50;
    font-weight: 800;
}

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

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--secondary);
}

.cta-button {
    background-color: var(--secondary);
    color: white;
    padding: 10px 20px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.3s;
}

.cta-button:hover {
    background-color: #2980b9;
}

.mobile-menu {
    display: none;
    font-size: 24px;
    cursor: pointer;
}

/* Hero Section */
.hero {
    padding: 150px 0 100px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.hero-text {
    flex: 1;
    padding-right: 40px;
}

.hero-image {
    flex: 1;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    color: var(--primary);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: var(--text-light);
}

.hero-buttons {
    display: flex;
    gap: 15px;
}

.btn {
    padding: 12px 25px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--secondary);
    color: white;
}

.btn-primary:hover {
    background-color: #2980b9;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

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

.btn-secondary:hover {
    background-color: rgba(52, 152, 219, 0.1);
}

/* Tech Visual Animation */
.tech-visual {
    position: relative;
    width: 300px;
    height: 300px;
    margin: 0 auto;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 15px;
    overflow: hidden;
}

.grid-lines {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(52, 152, 219, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(52, 152, 219, 0.1) 1px, transparent 1px);
    background-size: 20px 20px;
}

.data-points .point {
    position: absolute;
    width: 12px;
    height: 12px;
    background: var(--secondary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.data-points .p1 { top: 20%; left: 25%; animation-delay: 0s; }
.data-points .p2 { top: 60%; left: 15%; animation-delay: 0.5s; }
.data-points .p3 { top: 30%; left: 70%; animation-delay: 1s; }
.data-points .p4 { top: 75%; left: 60%; animation-delay: 1.5s; }
.data-points .p5 { top: 45%; left: 45%; animation-delay: 2s; }

.ai-core {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    font-size: 30px;
    color: var(--secondary);
    z-index: 2;
}

.connecting-lines .line {
    position: absolute;
    background: var(--secondary);
    height: 2px;
    transform-origin: left center;
    opacity: 0.6;
}

.connecting-lines .l1 {
    width: 80px;
    top: 50%;
    left: 50%;
    transform: rotate(45deg);
    animation: flow 3s infinite;
}

.connecting-lines .l2 {
    width: 70px;
    top: 50%;
    left: 50%;
    transform: rotate(135deg);
    animation: flow 3s infinite 0.5s;
}

.connecting-lines .l3 {
    width: 90px;
    top: 50%;
    left: 50%;
    transform: rotate(225deg);
    animation: flow 3s infinite 1s;
}

.connecting-lines .l4 {
    width: 60px;
    top: 50%;
    left: 50%;
    transform: rotate(315deg);
    animation: flow 3s infinite 1.5s;
}

@keyframes pulse {
    0%, 100% { opacity: 0.3; transform: scale(0.8); }
    50% { opacity: 1; transform: scale(1.2); }
}

@keyframes flow {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.8; }
}

/* Services Section */
.services {
    padding: 100px 0;
    background-color: white;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 15px;
}

.section-title p {
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

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

.service-card {
    background-color: white;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: transform 0.3s, box-shadow 0.3s;
    text-align: center;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.service-icon {
    font-size: 40px;
    color: var(--secondary);
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--primary);
}

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

.about-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.about-text {
    flex: 1;
}

.about-image {
    flex: 1;
    text-align: center;
}

.about h2 {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.about p {
    margin-bottom: 20px;
    color: var(--text-light);
}

/* Stats */
.stats-container {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
    margin: 15px;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 10px;
}

.stat-label {
    color: var(--text-light);
    font-weight: 500;
}

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

.contact-content {
    display: flex;
    gap: 50px;
}

.contact-info {
    flex: 1;
}

.contact-form {
    flex: 1;
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--primary);
}

.contact-details {
    margin-bottom: 30px;
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.contact-icon {
    width: 40px;
    height: 40px;
    background-color: var(--light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    color: var(--secondary);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-control:focus {
    border-color: var(--secondary);
    outline: none;
}

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

/* Footer */
footer {
    background-color: var(--primary);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-column {
    flex: 1;
    min-width: 200px;
}

.footer-column h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 2px;
    background-color: var(--accent);
}

.footer-links {
    list-style: none;
}

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

.footer-links a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s;
}

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

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-link {
    width: 40px;
    height: 40px;
    background-color: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: background-color 0.3s;
}

.social-link:hover {
    background-color: var(--secondary);
}

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: #bdc3c7;
    font-size: 0.9rem;
}

/* Notifications */
.notification {
    position: fixed;
    top: 100px;
    right: 20px;
    padding: 15px 20px;
    border-radius: 5px;
    color: white;
    font-weight: 500;
    z-index: 10000;
    max-width: 300px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    transform: translateX(400px);
    transition: transform 0.3s ease;
}

.notification.success {
    background-color: #27ae60;
}

.notification.error {
    background-color: #e74c3c;
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero-content, .about-content, .contact-content {
        flex-direction: column;
    }
    
    .hero-text, .about-text, .contact-info, .contact-form {
        padding-right: 0;
        margin-bottom: 40px;
    }
    
    .tech-visual {
        width: 250px;
        height: 250px;
    }
    
    .ai-core {
        width: 70px;
        height: 70px;
        font-size: 25px;
    }
    
    .connecting-lines .l1 { width: 70px; }
    .connecting-lines .l2 { width: 60px; }
    .connecting-lines .l3 { width: 80px; }
    .connecting-lines .l4 { width: 50px; }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-links li {
        margin: 10px 0;
    }
    
    .mobile-menu {
        display: block;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .section-title h2 {
        font-size: 2rem;
    }
    
    .stats-container {
        flex-direction: column;
    }
    
    .notification {
        right: 10px;
        left: 10px;
        max-width: none;
    }
	/* Enhanced Notifications */
.notification-content {
    display: flex;
    align-items: center;
    gap: 10px;
}

.notification-content i {
    font-size: 18px;
}

/* Form validation styles */
.form-control.error {
    border-color: #e74c3c;
    box-shadow: 0 0 5px rgba(231, 76, 60, 0.3);
}

.form-control.success {
    border-color: #27ae60;
    box-shadow: 0 0 5px rgba(39, 174, 96, 0.3);
}

.validation-message {
    color: #e74c3c;
    font-size: 0.85rem;
    margin-top: 5px;
    display: none;
}

.validation-message.show {
    display: block;
}
	/* Form Validation Styles */
.form-control.error {
    border-color: #e74c3c;
    box-shadow: 0 0 5px rgba(231, 76, 60, 0.3);
}

.form-control.success {
    border-color: #27ae60;
    box-shadow: 0 0 5px rgba(39, 174, 96, 0.3);
}

.validation-message {
    color: #e74c3c;
    font-size: 0.85rem;
    margin-top: 5px;
    display: none;
    font-weight: 500;
}

.validation-message.show {
    display: block;
}

/* Enhanced Notifications */
.notification-content {
    display: flex;
    align-items: center;
    gap: 10px;
}

.notification-content i {
    font-size: 18px;
}
}