:root {
    --primary-red: #dc2626;
    --dark-red: #991b1b;
    --light-red: #f87171;
    --black: #000000;
    --dark-gray: #1a1a1a;
    --gray: #4a4a4a;
    --light-gray: #e5e5e5;
    --white: #ffffff;
    --max-width: 1200px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--black);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
    overflow-x: hidden;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--light-gray);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-main {
    height: 45px;
    width: auto;
}

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

.nav-link {
    color: var(--black);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
}

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

.nav-cta {
    background: var(--primary-red);
    color: var(--white);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
}

.nav-cta:hover {
    background: var(--dark-red);
    color: var(--white);
    transform: translateY(-1px);
}

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

.bar {
    width: 25px;
    height: 2px;
    background: var(--black);
    margin: 3px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 20px 80px;
    background: linear-gradient(135deg, #ffffff 0%, #f8f8f8 50%, #f0f0f0 100%);
    position: relative;
    overflow: hidden;
}

/* Hero Background Animations */
.hero-bg-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

/* Stars */
.star {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary-red);
    border-radius: 50%;
    animation: twinkle 3s ease-in-out infinite;
}

.star:nth-child(2) { animation-delay: 0.5s; }
.star:nth-child(3) { animation-delay: 1s; }
.star:nth-child(4) { animation-delay: 1.5s; }
.star:nth-child(5) { animation-delay: 2s; }
.star:nth-child(6) { animation-delay: 2.5s; }
.star:nth-child(7) { animation-delay: 0.3s; }
.star:nth-child(8) { animation-delay: 1.7s; }

.star::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 2px;
    height: 12px;
    background: var(--primary-red);
    opacity: 0.5;
}

.star::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(90deg);
    width: 2px;
    height: 12px;
    background: var(--primary-red);
    opacity: 0.5;
}

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

/* Lab Particles */
.lab-particle {
    position: absolute;
    width: 6px;
    height: 6px;
    background: var(--black);
    border-radius: 50%;
    animation: float 20s ease-in-out infinite;
}

.lab-particle:nth-child(9) { animation-delay: 0s; animation-duration: 18s; }
.lab-particle:nth-child(10) { animation-delay: 5s; animation-duration: 22s; }
.lab-particle:nth-child(11) { animation-delay: 10s; animation-duration: 20s; }
.lab-particle:nth-child(12) { animation-delay: 15s; animation-duration: 24s; }

.lab-particle::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 1px;
    height: 20px;
    background: linear-gradient(to bottom, transparent, var(--black), transparent);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) translateX(0); }
    25% { transform: translateY(-20px) translateX(10px); }
    50% { transform: translateY(10px) translateX(-10px); }
    75% { transform: translateY(-10px) translateX(5px); }
}

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

/* Hero Graph */
.hero-graph {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 40%;
    height: 40%;
    opacity: 0.3;
}

/* Hero DNA */
.hero-dna {
    position: absolute;
    left: 5%;
    top: 50%;
    transform: translateY(-50%);
    width: 5%;
    height: 50%;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    position: relative;
    z-index: 1;
}

/* Free Badge */
.free-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--primary-red);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 2rem;
    animation: pulse-badge 2s ease-in-out infinite;
}

.badge-separator {
    opacity: 0.5;
}

@keyframes pulse-badge {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.hero-title {
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--black) 0%, var(--primary-red) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 3vw, 1.5rem);
    font-weight: 400;
    color: var(--gray);
    margin-bottom: 1.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-promise {
    font-size: 1.1rem;
    color: var(--primary-red);
    font-weight: 500;
    margin-bottom: 2rem;
    font-style: italic;
}

.hero-metrics {
    display: flex;
    gap: 3rem;
    justify-content: center;
    margin: 3rem 0;
    flex-wrap: wrap;
}

.metric-item {
    text-align: center;
}

.metric-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-red);
    margin-bottom: 0.5rem;
}

.metric-label {
    display: block;
    font-size: 0.9rem;
    color: var(--gray);
    font-weight: 500;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    outline: none;
}

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

.btn-primary:hover {
    background: var(--dark-red);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(220, 38, 38, 0.3);
}

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

.btn-secondary:hover {
    background: var(--black);
    color: var(--white);
    transform: translateY(-2px);
}

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

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

.about-animation {
    margin: 2rem 0;
    display: flex;
    justify-content: center;
}

.about-svg {
    width: 100%;
    max-width: 300px;
    height: auto;
}


.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.section-lead {
    font-size: 1.25rem;
    color: var(--gray);
    margin-bottom: 2rem;
    font-weight: 500;
}

.about-content p {
    margin-bottom: 1.5rem;
    color: var(--gray);
    line-height: 1.8;
}

/* About Bottom Row */
.about-bottom-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 3rem;
}

.about-cta-box {
    background: var(--light-gray);
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
}

.about-cta-box p {
    color: var(--gray);
    margin-bottom: 1rem;
    font-weight: 500;
}

/* Our Goal Section */
.our-goal {
    background: linear-gradient(135deg, var(--light-gray) 0%, rgba(220, 38, 38, 0.05) 100%);
    padding: 2rem;
    border-radius: 20px;
    border-left: 4px solid var(--primary-red);
}

.goal-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--black);
}

.goal-content {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--gray);
    margin: 0;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.stat-card {
    background: var(--light-gray);
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-red);
    margin-bottom: 0.5rem;
}

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

/* Newsletter Section */
.newsletter {
    padding: 100px 0;
    background: var(--black);
    color: var(--white);
}

.newsletter-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.newsletter .section-title {
    color: var(--white);
}

.newsletter .section-lead {
    color: var(--light-gray);
}

.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.newsletter-input {
    width: 100%;
    padding: 1rem 1.5rem;
    font-size: 1rem;
    border: 2px solid var(--gray);
    border-radius: 50px;
    background: var(--dark-gray);
    color: var(--white);
    outline: none;
    transition: var(--transition);
}

.newsletter-input::placeholder {
    color: var(--gray);
}

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

.newsletter-note {
    font-size: 0.9rem;
    color: var(--gray);
}

/* Companies Section */
.companies {
    padding: 100px 0;
    background: var(--white);
}

.companies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.company-card {
    background: var(--light-gray);
    border-radius: 30px;
    padding: 3rem;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.company-card::before {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(220, 38, 38, 0.05) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.5s ease;
}

.company-card:hover::before {
    opacity: 1;
}

.company-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.company-logo {
    width: 120px;
    height: 120px;
    margin: 0 auto 2rem;
}

.logo-svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.company-name {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.company-description {
    color: var(--gray);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.company-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    align-items: center;
}

.company-link {
    color: var(--primary-red);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.company-link:hover {
    transform: translateX(5px);
}

.btn-small {
    padding: 0.6rem 1.5rem;
    font-size: 0.9rem;
}

.companies-footer {
    text-align: center;
    margin-top: 4rem;
}

.companies-footer p {
    font-size: 1.2rem;
    color: var(--gray);
    margin-bottom: 2rem;
}

/* Hero Animation */
.hero-animation {
    position: absolute;
    top: 50%;
    right: 10%;
    transform: translateY(-50%);
    width: 400px;
    height: 300px;
    pointer-events: none;
    opacity: 0.5;
}

.animated-svg {
    width: 100%;
    height: 100%;
}

/* Footer */
.footer {
    background: var(--dark-gray);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-title {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.footer-text {
    color: var(--light-gray);
}

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

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

.footer-links a {
    color: var(--light-gray);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--gray);
    color: var(--gray);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--white);
        flex-direction: column;
        padding: 2rem;
        transition: var(--transition);
        border-top: 1px solid var(--light-gray);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .hero {
        padding: 100px 20px 60px;
    }

    .hero-animation {
        width: 300px;
        height: 225px;
        right: 50%;
        transform: translate(50%, -50%);
        opacity: 0.3;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .about-stats {
        grid-template-columns: 1fr 1fr;
    }
    
    .about-bottom-row {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .companies-grid {
        grid-template-columns: 1fr;
    }

    .company-cta {
        flex-direction: column;
    }

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

    .newsletter-input {
        min-width: 100%;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
}

/* Global Background Animations */
.global-bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

/* Enhanced version for homepage */
.global-bg-animation.enhanced {
    z-index: 0;
}

/* Enhanced floating particles */
.bg-particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary-red);
    border-radius: 50%;
    opacity: 0;
}

.bg-particle:nth-child(1) { top: 5%; left: 8%; animation: floatParticle 25s linear infinite; }
.bg-particle:nth-child(2) { top: 15%; left: 85%; animation: floatParticle 30s linear infinite 2s; }
.bg-particle:nth-child(3) { top: 25%; left: 20%; animation: floatParticle 28s linear infinite 4s; }
.bg-particle:nth-child(4) { top: 35%; left: 70%; animation: floatParticle 32s linear infinite 6s; }
.bg-particle:nth-child(5) { top: 45%; left: 40%; animation: floatParticle 26s linear infinite 8s; }
.bg-particle:nth-child(6) { top: 55%; left: 15%; animation: floatParticle 29s linear infinite 10s; }
.bg-particle:nth-child(7) { top: 65%; left: 90%; animation: floatParticle 27s linear infinite 12s; }
.bg-particle:nth-child(8) { top: 75%; left: 30%; animation: floatParticle 31s linear infinite 14s; }
.bg-particle:nth-child(9) { top: 85%; left: 60%; animation: floatParticle 25s linear infinite 16s; }
.bg-particle:nth-child(10) { top: 95%; left: 45%; animation: floatParticle 28s linear infinite 18s; }

@keyframes floatParticle {
    0% {
        opacity: 0;
        transform: translateY(0) translateX(0);
    }
    10% {
        opacity: 0.2;
    }
    90% {
        opacity: 0.2;
    }
    100% {
        opacity: 0;
        transform: translateY(-100vh) translateX(100px);
    }
}

/* Shooting stars */
.bg-star {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--gray);
    opacity: 0;
}

.bg-star:nth-child(11) { top: 10%; right: -150px; animation: shootingStar 12s linear infinite; }
.bg-star:nth-child(12) { top: 30%; right: -150px; animation: shootingStar 15s linear infinite 3s; }
.bg-star:nth-child(13) { top: 50%; right: -150px; animation: shootingStar 18s linear infinite 6s; }
.bg-star:nth-child(14) { top: 70%; right: -150px; animation: shootingStar 14s linear infinite 9s; }
.bg-star:nth-child(15) { top: 90%; right: -150px; animation: shootingStar 16s linear infinite 12s; }

.bg-star::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 150px;
    height: 1px;
    background: linear-gradient(to left, transparent, var(--gray));
    transform: translateX(-150px);
}

.bg-star:nth-child(6) {
    top: 15%;
    right: -150px;
    animation: shootingStar 15s linear infinite;
}

.bg-star:nth-child(7) {
    top: 45%;
    right: -150px;
    animation: shootingStar 20s linear infinite 7s;
}

.bg-star:nth-child(8) {
    top: 75%;
    right: -150px;
    animation: shootingStar 18s linear infinite 14s;
}

@keyframes shootingStar {
    0% {
        transform: translateX(0);
        opacity: 0;
    }
    5% {
        opacity: 0.4;
    }
    95% {
        opacity: 0.4;
    }
    100% {
        transform: translateX(calc(-100vw - 150px));
        opacity: 0;
    }
}

/* Lab elements */
.bg-lab-element {
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--black);
    border-radius: 50%;
    opacity: 0.2;
}

.bg-lab-element::before {
    content: '';
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 1px;
    height: 30px;
    background: linear-gradient(to bottom, transparent, var(--black), transparent);
    opacity: 0.5;
}

.bg-lab-element:nth-child(16) { top: 20%; left: 50%; animation: float 15s ease-in-out infinite; }
.bg-lab-element:nth-child(17) { top: 50%; left: 80%; animation: float 18s ease-in-out infinite 5s; }
.bg-lab-element:nth-child(18) { top: 80%; left: 20%; animation: float 20s ease-in-out infinite 10s; }

/* Background graph */
.bg-graph {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

/* Ensure content is above animations */
section, .navbar, .footer {
    position: relative;
    z-index: 1;
}