:root {
    --primary-color: #7e54ff;
    --secondary-color: #6c43ff;
    --accent-color: #ff54b1;
    --background-color: #0a0a14;
    --dark-color: #050510;
    --light-color: #151525;
    --gray-color: #1a1a2a;
    --text-color: #e0e0e0;
    --base-a-color: #ff8f30;      --base-t-color: #37c7ff;      --base-g-color: #ffdf44;      --base-c-color: #3e9fff;      --border-color: #333333;
}

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

.custom-cursor, .custom-cursor * {
    cursor: none !important;
}

body:not(.custom-cursor) {
    cursor: url('dna-cursor.svg'), auto; }

html {
    scroll-behavior: smooth;
}

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

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

.logo-image {
    width: 50px;
    height: 50px;
    margin-right: 10px; }

body:not(.custom-cursor) a, 
body:not(.custom-cursor) button, 
body:not(.custom-cursor) input[type="submit"], 
body:not(.custom-cursor) .cta-button, 
body:not(.custom-cursor) .feature-card, 
body:not(.custom-cursor) .testimonial-card, 
body:not(.custom-cursor) .step-number, 
body:not(.custom-cursor) nav ul li a, 
body:not(.custom-cursor) .footer-links ul li a {
    cursor: url('dna-cursor-pointer.svg'), pointer; }

.cursor-glow {
    position: fixed;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.6;
    background: radial-gradient(circle, rgba(55, 199, 255, 0.5) 0%, rgba(55, 199, 255, 0) 70%);
    transform: translate(-50%, -50%);
    transition: opacity 0.3s ease, width 0.3s ease, height 0.3s ease;
}

.cursor-follow {
    position: fixed;
    width: 25px;
    height: 25px;
    border-radius: 50%;
    pointer-events: none;
    z-index: 9998;
    opacity: 0.8;
    border: 3px solid rgba(55, 199, 255, 0.9);     background-color: rgba(55, 199, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.3s ease, height 0.3s ease, border-color 0.3s ease, transform 0.2s ease;
}

.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--dark-color);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

.dna-loader {
    position: relative;
    width: 100px;
    height: 200px;
}

.dna-loader-strand {
    position: absolute;
    width: 2px;
    height: 200px;
    background-color: rgba(0, 80, 180, 0.3);
    left: 30px;
    transform: rotate(5deg);
}

.dna-loader-strand:nth-child(2) {
    left: 70px;
    transform: rotate(-5deg);
}

.dna-loader-rung {
    position: absolute;
    width: 40px;
    height: 4px;
    left: 30px;
    background: linear-gradient(to right, #37c7ff, #ff8f30);
    box-shadow: 0 0 10px rgba(55, 199, 255, 0.5);
    transform-origin: center;
    animation: dnaLoaderSpin 1.5s infinite ease-in-out;
}

.dna-loader-rung:nth-child(3) { top: 10%; animation-delay: -0.2s; }
.dna-loader-rung:nth-child(4) { top: 20%; animation-delay: -0.4s; }
.dna-loader-rung:nth-child(5) { top: 30%; animation-delay: -0.6s; }
.dna-loader-rung:nth-child(6) { top: 40%; animation-delay: -0.8s; }
.dna-loader-rung:nth-child(7) { top: 50%; animation-delay: -1.0s; }
.dna-loader-rung:nth-child(8) { top: 60%; animation-delay: -1.2s; }
.dna-loader-rung:nth-child(9) { top: 70%; animation-delay: -1.4s; }
.dna-loader-rung:nth-child(10) { top: 80%; animation-delay: -1.6s; }
.dna-loader-rung:nth-child(11) { top: 90%; animation-delay: -1.8s; }

@keyframes dnaLoaderSpin {
    0%, 100% {
        transform: rotate(0deg) scaleX(1);
    }
    50% {
        transform: rotate(180deg) scaleX(0.6);
    }
}

.loader-text {
    position: absolute;
    bottom: -40px;
    font-size: 1.2rem;
    color: var(--text-color);
    font-weight: 300;
    letter-spacing: 2px;
    animation: loaderTextPulse 1.5s infinite;
}

@keyframes loaderTextPulse {
    0%, 100% {
        opacity: 0.7;
    }
    50% {
        opacity: 1;
    }
}

.preloader-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(55, 199, 255, 0.4) 0%, transparent 10%),
        radial-gradient(circle at 70% 60%, rgba(255, 143, 48, 0.4) 0%, transparent 10%),
        radial-gradient(circle at 40% 80%, rgba(55, 199, 255, 0.4) 0%, transparent 10%),
        radial-gradient(circle at 80% 40%, rgba(255, 143, 48, 0.4) 0%, transparent 10%);
    opacity: 0.2;
    filter: blur(2px);
    animation: preloaderParticleFloat 5s ease-in-out infinite alternate;
}

@keyframes preloaderParticleFloat {
    0% {
        background-position: 0 0, 0 0, 0 0, 0 0;
    }
    100% {
        background-position: 20px 20px, -20px 20px, 20px -20px, -20px -20px;
    }
}

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

h1, h2, h3, h4, h5, h6 {
    margin-bottom: 20px;
    line-height: 1.2;
}

p {
    margin-bottom: 15px;
}

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

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

section {
    padding: 40px 0;
    position: relative;
}

header {
    background-color: var(--dark-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    text-shadow: 0 0 8px rgba(126, 84, 255, 0.5);
}

.logo span {
    color: var(--accent-color);
    text-shadow: 0 0 8px rgba(255, 84, 177, 0.5);
}

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

nav ul li {
    margin-left: 30px;
}

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

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

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

.hero {
    padding-top: 120px;
    min-height: 90vh;
    background: linear-gradient(135deg, #050510 0%, #0c0c1a 100%);
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 70% 50%, rgba(0, 80, 180, 0.08) 0%, rgba(10, 10, 20, 0) 70%);
    pointer-events: none;
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-direction: row-reverse;     flex-wrap: wrap;
    position: relative;
    z-index: 2;
}

.hero-content {
    flex: 1;
    min-width: 300px;
    animation: fadeInRight 1s ease-out;
    padding-left: 50px;
    text-align: right;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    color: var(--text-color);
    text-shadow: 0 0 10px rgba(126, 84, 255, 0.3);
}

.hero-content p {
    font-size: 1.2rem;
    color: #aaaaaa;
    margin-bottom: 30px;
}

.cta-button {
    display: inline-block;
    background: var(--primary-color);
    color: #ffffff;
    padding: 15px 30px;
    border-radius: 50px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    box-shadow: 0 0 20px rgba(126, 84, 255, 0.5);
    position: relative;
    overflow: hidden;
    z-index: 10000; }

.cta-button::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: rotate(45deg);
    transition: all 0.5s ease;
    pointer-events: none; }

.cta-button:hover {
    background: var(--secondary-color);
    color: #ffffff;
    transform: translateY(-3px);
    box-shadow: 0 0 30px rgba(126, 84, 255, 0.7);
}

.cta-button:hover::before {
    left: 100%;
}

.dna-model {
    flex: 1;
    min-width: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    height: 600px;
    perspective: 1200px;
    background: radial-gradient(ellipse at center, rgba(0, 20, 50, 0.4) 0%, rgba(18, 18, 18, 0) 70%);
}

.dna-container {
    width: 200px;
    height: 500px;
    position: relative;
    transform-style: preserve-3d;
    animation: spinDNA 18s linear infinite;
}

.dna-strand {
    position: relative;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
}

.dna-helix {
    position: absolute;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
}

.dna-helix::before, .dna-helix::after {
    content: '';
    position: absolute;
    width: 5px;
    height: 100%;
    background: rgba(30, 100, 180, 0.7);
    border-radius: 3px;
    left: calc(50% - 45px);
    transform-style: preserve-3d;
    box-shadow: 0 0 10px rgba(70, 130, 220, 0.8);
}

.dna-helix::after {
    left: calc(50% + 40px);
    background: rgba(40, 110, 190, 0.7);
}

.rung {
    position: absolute;
    width: 90px;
    height: 6px;
    left: 50%;
    transform: translateX(-50%);
    transform-style: preserve-3d;
}

.rung:nth-child(1) { top: 0%; transform: translateX(-50%) translateZ(45px) rotateY(0deg); }
.rung:nth-child(2) { top: 5%; transform: translateX(-50%) translateZ(43px) rotateY(18deg); }
.rung:nth-child(3) { top: 10%; transform: translateX(-50%) translateZ(37px) rotateY(36deg); }
.rung:nth-child(4) { top: 15%; transform: translateX(-50%) translateZ(28px) rotateY(54deg); }
.rung:nth-child(5) { top: 20%; transform: translateX(-50%) translateZ(15px) rotateY(72deg); }
.rung:nth-child(6) { top: 25%; transform: translateX(-50%) translateZ(0px) rotateY(90deg); }
.rung:nth-child(7) { top: 30%; transform: translateX(-50%) translateZ(-15px) rotateY(108deg); }
.rung:nth-child(8) { top: 35%; transform: translateX(-50%) translateZ(-28px) rotateY(126deg); }
.rung:nth-child(9) { top: 40%; transform: translateX(-50%) translateZ(-37px) rotateY(144deg); }
.rung:nth-child(10) { top: 45%; transform: translateX(-50%) translateZ(-43px) rotateY(162deg); }
.rung:nth-child(11) { top: 50%; transform: translateX(-50%) translateZ(-45px) rotateY(180deg); }
.rung:nth-child(12) { top: 55%; transform: translateX(-50%) translateZ(-43px) rotateY(198deg); }
.rung:nth-child(13) { top: 60%; transform: translateX(-50%) translateZ(-37px) rotateY(216deg); }
.rung:nth-child(14) { top: 65%; transform: translateX(-50%) translateZ(-28px) rotateY(234deg); }
.rung:nth-child(15) { top: 70%; transform: translateX(-50%) translateZ(-15px) rotateY(252deg); }
.rung:nth-child(16) { top: 75%; transform: translateX(-50%) translateZ(0px) rotateY(270deg); }
.rung:nth-child(17) { top: 80%; transform: translateX(-50%) translateZ(15px) rotateY(288deg); }
.rung:nth-child(18) { top: 85%; transform: translateX(-50%) translateZ(28px) rotateY(306deg); }
.rung:nth-child(19) { top: 90%; transform: translateX(-50%) translateZ(37px) rotateY(324deg); }
.rung:nth-child(20) { top: 95%; transform: translateX(-50%) translateZ(43px) rotateY(342deg); }

.rung::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 3px;
    background: rgba(100, 170, 255, 0.3);
    top: 3px;
    left: 0;
    z-index: -1;
}

.base {
    position: absolute;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    top: -4px;
    transition: all 0.3s ease;
}

.base-a {
    background-color: #ff8f30;     left: 0;
    box-shadow: 0 0 15px rgba(255, 143, 48, 0.8);
}

.base-t {
    background-color: #37c7ff;     right: 0;
    box-shadow: 0 0 15px rgba(55, 199, 255, 0.8);
}

.base-g {
    background-color: #ffdf44;     left: 0;
    box-shadow: 0 0 15px rgba(255, 223, 68, 0.8);
}

.base-c {
    background-color: #3e9fff;     right: 0;
    box-shadow: 0 0 15px rgba(62, 159, 255, 0.8);
}

.rung:nth-child(3) .base, 
.rung:nth-child(7) .base, 
.rung:nth-child(12) .base, 
.rung:nth-child(17) .base {
    box-shadow: 0 0 25px rgba(255, 180, 50, 1);
    z-index: 10;
}

.dna-model::before {
    content: '';
    position: absolute;
    background-size: 2px 2px, 4px 4px, 3px 3px, 2px 2px, 3px 3px;
    background-position: 0 0, 10px 10px, -10px 20px, 15px -10px, -15px -15px;
    opacity: 0.3;
    filter: blur(1px);
    animation: floatParticles 8s ease-in-out infinite alternate;
}

@keyframes floatParticles {
    0% {
        background-position: 0 0, 10px 10px, -10px 20px, 15px -10px, -15px -15px;
    }
    100% {
        background-position: 10px 10px, 20px 20px, 0 30px, 25px 0, -5px -5px;
    }
}

@keyframes spinDNA {
    0% {
        transform: rotateY(0) rotateX(15deg);
    }
    100% {
        transform: rotateY(360deg) rotateX(15deg);
    }
}

.dna-model::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, rgba(0, 80, 180, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.about {
    background-color: var(--dark-color);
    position: relative;
    overflow: hidden;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 30% 70%, rgba(126, 84, 255, 0.05) 0%, rgba(18, 18, 18, 0) 60%);
    pointer-events: none;
}

.about h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: var(--primary-color);
    text-shadow: 0 0 10px rgba(126, 84, 255, 0.3);
}

.about-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    position: relative;
    z-index: 2;
}

.about-text {
    flex: 1;
    min-width: 300px;
    padding-right: 30px;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: #aaaaaa;
}

.about-image {
    flex: 1;
    min-width: 300px;
    display: flex;
    justify-content: center;
}

.dna-small {
    width: 150px;
    height: 300px;
    position: relative;
}

.dna-spiral {
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    clip-path: polygon(
        50% 0%, 
        60% 10%, 
        60% 20%, 
        50% 30%, 
        40% 20%, 
        40% 10%,
        50% 0%,
        
        50% 30%,
        60% 40%, 
        60% 50%, 
        50% 60%, 
        40% 50%, 
        40% 40%,
        50% 30%,
        
        50% 60%,
        60% 70%, 
        60% 80%, 
        50% 90%, 
        40% 80%, 
        40% 70%,
        50% 60%,
        
        50% 90%,
        60% 100%, 
        40% 100%, 
        50% 90%
    );
    animation: pulseScale 4s ease-in-out infinite;
    box-shadow: 0 0 30px rgba(126, 84, 255, 0.4);
}

@keyframes pulseScale {
    0%, 100% {
        transform: scale(1);
        filter: hue-rotate(0deg);
    }
    50% {
        transform: scale(1.1);
        filter: hue-rotate(30deg);
    }
}

footer {
    background-color: var(--dark-color);
    color: var(--text-color);
    padding: 60px 0 20px;
    border-top: 1px solid rgba(126, 84, 255, 0.2);
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 80%, rgba(126, 84, 255, 0.05) 0%, rgba(0, 0, 0, 0) 70%);
    pointer-events: none;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-bottom: 40px;
    position: relative;
    z-index: 2;
}

.footer-logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 20px;
    text-shadow: 0 0 8px rgba(126, 84, 255, 0.5);
}

.footer-logo span {
    color: var(--accent-color);
    text-shadow: 0 0 8px rgba(255, 84, 177, 0.5);
}

.footer-links, .footer-contact {
    margin-bottom: 20px;
}

.footer-links h3, .footer-contact h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--primary-color);
    text-shadow: 0 0 5px rgba(126, 84, 255, 0.3);
}

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

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

.footer-links ul li a {
    color: rgba(224, 224, 224, 0.7);
    transition: all 0.3s ease;
    position: relative;
}

.footer-links ul li a::before {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

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

.footer-links ul li a:hover::before {
    width: 100%;
}

.footer-contact p {
    color: rgba(224, 224, 224, 0.7);
    margin-bottom: 10px;
}

.copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: rgba(224, 224, 224, 0.4);
    position: relative;
    z-index: 2;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.about, .features, .process, .testimonials, .contact {
    opacity: 0;
    animation: fadeInUp 1s ease forwards;
    animation-play-state: paused;
}

.about.visible, .features.visible, .process.visible, .testimonials.visible, .contact.visible {
    animation-play-state: running;
}

section:nth-of-type(2) {
    animation-delay: 0.2s;
}

section:nth-of-type(3) {
    animation-delay: 0.4s;
}

section:nth-of-type(4) {
    animation-delay: 0.6s;
}

section:nth-of-type(5) {
    animation-delay: 0.8s;
}

section:nth-of-type(6) {
    animation-delay: 1s;
}

@media (max-width: 992px) {
    .hero-content, .dna-model {
        flex: 100%;
        text-align: center;
    }
    
    .hero-content {
        margin-bottom: 80px;     }
    
    .step:not(:last-child):after {
        display: none;
    }
    
    .step {
        margin-bottom: 30px;
    }
}

@media (max-width: 768px) {
    nav {
        flex-direction: column;
    }
    
    nav ul {
        margin-top: 20px;
    }
    
    nav ul li {
        margin: 0 10px;
    }
    
    .hero {
        padding-top: 180px;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .feature-card, .testimonial-card {
        min-width: 100%;
    }
    
    .footer-content > div {
        flex: 100%;
        margin-bottom: 30px;
    }
}

@media (max-width: 576px) {
    section {
        padding: 60px 0;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .about h2, .features h2, .process h2, .testimonials h2, .contact h2 {
        font-size: 2rem;
    }
    
    .dna-model {
        height: 400px;
    }
    
    .dna-container {
        width: 200px;
        height: 350px;
    }
}

@media (max-width: 992px) {
    .hero .container {
        flex-direction: column;         align-items: center;     }

    .hero .container .hero-content {
        text-align: center !important;         padding-left: 0;         margin: 0 auto;         margin-bottom: 80px;     }

    .cta-button {
        display: block;         margin: 0 auto;   
      }
}