:root {
    /* Color Palette */
    --clr-bg-main: #0B1120;
    --clr-bg-alt: #0f172a;
    --clr-glass: rgba(15, 23, 42, 0.6);
    --clr-glass-border: rgba(255, 255, 255, 0.1);
    
    --clr-primary: #06b6d4; /* Cyan */
    --clr-primary-hover: #0891b2;
    --clr-accent: #8b5cf6; /* Purple */
    
    --clr-text: #f8fafc;
    --clr-text-muted: #94a3b8;
    
    /* Typography */
    --font-sans: 'Inter', sans-serif;
    --font-heading: 'Outfit', sans-serif;
    
    /* Spacing & Layout */
    --container-max: 1200px;
    --section-py: 100px;
    
    /* Transitions */
    --ts-fast: 0.2s ease;
    --ts-med: 0.4s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--clr-bg-main);
    color: var(--clr-text);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--ts-fast);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    line-height: 1.2;
    margin-bottom: 1rem;
    font-weight: 700;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 800;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: 1.5rem;
}

p {
    color: var(--clr-text-muted);
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
}

.text-gradient {
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-cyan { color: var(--clr-primary); }
.text-purple { color: var(--clr-accent); }
.text-gray { color: var(--clr-text-muted); }
.text-sm { font-size: 0.9rem; }
.text-center { text-align: center; }

.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-6 { margin-bottom: 2.5rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-6 { margin-top: 2.5rem; }
.pt-6 { padding-top: 2.5rem; }

/* Layout & Utilities */
.container {
    width: 90%;
    max-width: var(--container-max);
    margin: 0 auto;
}

.grid {
    display: grid;
    gap: 2rem;
}

.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }

@media (min-width: 992px) {
    .grid-3 { grid-template-columns: repeat(3, 1fr); }
    .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

.pt-120 { padding-top: var(--section-py); }
.pb-120 { padding-bottom: var(--section-py); }
.bg-dark { background-color: var(--clr-bg-alt); }
.w-100 { width: 100%; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.75rem;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    transition: all var(--ts-fast);
    font-family: var(--font-sans);
    border: 2px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, var(--clr-primary), #0369a1);
    color: #fff;
    box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(6, 182, 212, 0.4);
    background: linear-gradient(135deg, var(--clr-primary-hover), #0284c7);
}

.btn-outline {
    background: transparent;
    border-color: rgba(255, 255, 255, 0.2);
    color: #fff;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--clr-primary);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
}

/* Glass Card */
.glass-card {
    background: var(--clr-glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--clr-glass-border);
    border-radius: 16px;
    padding: 2.5rem;
    transition: transform var(--ts-med), box-shadow var(--ts-med);
}

.glass-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    border-color: rgba(6, 182, 212, 0.3);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 0;
    z-index: 1000;
    transition: all var(--ts-med);
}

.navbar.scrolled {
    background: rgba(11, 17, 32, 0.85);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    padding: 1rem 0;
    border-bottom: 1px solid var(--clr-glass-border);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #fff;
}

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

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

.logo img {
    height: 45px;
    width: 45px;
    object-fit: cover;
    border-radius: 50%;
    border: 1px solid var(--clr-glass-border);
    box-shadow: 0 0 10px rgba(6, 182, 212, 0.3);
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    font-weight: 500;
    color: var(--clr-text-muted);
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    z-index: -2;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(11, 17, 32, 0.95) 0%, rgba(11, 17, 32, 0.7) 100%);
    z-index: -1;
}

.hero-content {
    max-width: 800px;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(6, 182, 212, 0.1);
    color: var(--clr-primary);
    border: 1px solid rgba(6, 182, 212, 0.2);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.badge-purple {
    background: rgba(139, 92, 246, 0.1);
    color: var(--clr-accent);
    border: 1px solid rgba(139, 92, 246, 0.2);
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    max-width: 600px;
}

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

/* Section Headings */
.section-heading {
    margin-bottom: 4rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Cards & Elements */
.card-icon {
    font-size: 2.5rem;
    color: var(--clr-primary);
    margin-bottom: 1.5rem;
}

/* Trusted Section */
.trusted-item {
    padding: 1.5rem;
    opacity: 0.7;
    transition: opacity var(--ts-fast);
}

.trusted-item:hover {
    opacity: 1;
}

/* Products Section */
.feature-row {
    display: flex;
    gap: 1.5rem;
    background: var(--clr-bg-main);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid var(--clr-glass-border);
    transition: var(--ts-med);
}

.feature-row:hover {
    border-color: var(--clr-primary);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.feature-num {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    color: transparent;
    -webkit-text-stroke: 1px var(--clr-primary);
    line-height: 1;
}

/* BioStat Section */
.biostat-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.glass-mockup {
    padding: 1rem;
    background: var(--clr-glass);
    border: 1px solid var(--clr-glass-border);
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
}

.glass-mockup img {
    border-radius: 12px;
}

.feature-list {
    margin-bottom: 2rem;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

/* Industries Section */
.industry-card {
    padding: 2rem;
}

.flex-row {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.industry-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: rgba(6, 182, 212, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--clr-primary);
}

/* Tech Section */
.tech-item {
    background: var(--clr-glass);
    padding: 3rem 2rem;
    border-radius: 16px;
    border: 1px solid var(--clr-glass-border);
}

.tech-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

/* Footer */
.footer {
    background-color: #05080f;
    padding-top: 5rem;
    padding-bottom: 2rem;
    border-top: 1px solid var(--clr-glass-border);
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a:hover {
    color: var(--clr-primary);
}

.contact-info a:hover {
    color: var(--clr-primary);
}

.newsletter-form {
    display: flex;
    flex-direction: column;
}

.newsletter-form input {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    border: 1px solid var(--clr-glass-border);
    background: rgba(255,255,255,0.05);
    color: #fff;
    font-family: inherit;
    outline: none;
}

.newsletter-form input:focus {
    border-color: var(--clr-primary);
}

.footer-bottom {
    border-top: 1px solid var(--clr-glass-border);
}

/* Contact Form Section */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 500;
    font-size: 0.95rem;
}

.form-group input, 
.form-group textarea {
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--clr-glass-border);
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    font-family: inherit;
    outline: none;
    transition: border-color var(--ts-fast);
}

.form-group input:focus, 
.form-group textarea:focus {
    border-color: var(--clr-primary);
}

.icon-box {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(6, 182, 212, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.align-center {
    align-items: center;
}

/* Animations */
.section-hidden {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.section-visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-up {
    animation: fadeInUp 1s ease-out forwards;
}

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

/* Responsive */
@media (max-width: 992px) {
    .biostat-grid {
        grid-template-columns: 1fr;
    }
    .biostat-image-wrapper {
        order: -1;
    }
}

@media (max-width: 768px) {
    .nav-links, .nav-btn {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .section-py {
        padding-top: 60px;
        padding-bottom: 60px;
    }
}

/* Mobile Nav Active */
.nav-active .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: rgba(11, 17, 32, 0.98);
    padding: 2rem;
    gap: 1.5rem;
    text-align: center;
    border-bottom: 1px solid var(--clr-glass-border);
}