:root {
    --bg-color: #050508;
    --bg-surface: rgba(15, 15, 25, 0.6);
    --border-glass: rgba(255, 255, 255, 0.05);

    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;

    --accent-blue: #00f0ff;
    --accent-purple: #7a00ff;

    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

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

.gradient-text {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.glow {
    filter: drop-shadow(0 0 15px rgba(0, 240, 255, 0.4));
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 1.8rem;
    border-radius: 30px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-family: var(--font-heading);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    color: white;
    box-shadow: 0 4px 15px rgba(122, 0, 255, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 25px rgba(0, 240, 255, 0.5);
    transform: translateY(-2px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: white;
    border: 1px solid var(--border-glass);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

/* Glasscard */
.glass-card {
    background: var(--bg-surface);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    transition: var(--transition);
}

.glass-card:hover {
    border-color: rgba(0, 240, 255, 0.3);
    box-shadow: 0 8px 32px 0 rgba(0, 240, 255, 0.1);
    transform: translateY(-5px);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: var(--transition);
}

.navbar.scrolled {
    padding: 1rem 0;
    background: rgba(5, 5, 8, 0.85);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--border-glass);
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 1px;
    text-decoration: none;
    color: var(--text-primary);
}

.logo .dot {
    color: var(--accent-blue);
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    font-size: 0.95rem;
}

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

.nav-links .btn {
    color: white;
}

#lang-toggle {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-glass);
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    cursor: pointer;
    font-family: var(--font-heading);
    font-weight: 600;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 45px;
}

#lang-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

/* Canvas hero background */
#hero-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: -1;
    opacity: 0.6;
    pointer-events: none;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    text-align: center;
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 30vh;
    background: linear-gradient(to top, var(--bg-color), transparent);
    z-index: -1;
}

.hero-content {
    max-width: 800px;
    padding-top: 5rem;
}

.hero h1 {
    font-size: clamp(3rem, 5vw, 5rem);
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: clamp(1rem, 1.5vw, 1.25rem);
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Scroll indicator */
.hero-scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0.7;
}

.mouse {
    width: 26px;
    height: 42px;
    border: 2px solid var(--text-secondary);
    border-radius: 13px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--accent-blue);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 1.5s infinite;
}

@keyframes scroll {
    0% {
        top: 6px;
        opacity: 1;
    }

    100% {
        top: 18px;
        opacity: 0;
    }
}

/* Stats */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: -3rem;
    position: relative;
    z-index: 10;
}

.stat-card {
    padding: 2.5rem;
    text-align: center;
}

.stat-card h3 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.stat-card p {
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.85rem;
}

/* Sections */
.section-padding {
    padding: 8rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.service-card {
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.service-icon {
    font-size: 2.5rem;
    background: rgba(255, 255, 255, 0.05);
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 20px;
    margin-bottom: 0.5rem;
}

.service-card h3 {
    font-size: 1.3rem;
}

.service-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Why Us */
.why-us {
    position: relative;
    border-top: 1px solid rgba(255, 255, 255, 0.02);
}

.why-us-bg-glow {
    position: absolute;
    top: 50%;
    right: 0;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(122, 0, 255, 0.15) 0%, transparent 70%);
    transform: translateY(-50%);
    z-index: -1;
}

.why-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.feature-list {
    list-style: none;
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.feature-list li {
    position: relative;
    padding-left: 2rem;
}

.feature-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 6px;
    width: 10px;
    height: 10px;
    background: var(--accent-blue);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-blue);
}

.feature-list strong {
    font-size: 1.2rem;
    display: block;
    margin-bottom: 0.5rem;
    font-family: var(--font-heading);
}

.feature-list p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Abstract Sphere Visualization */
.why-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    perspective: 1000px;
}

.abstract-sphere {
    position: relative;
    width: 300px;
    height: 300px;
    transform-style: preserve-3d;
    animation: rotateSphere 20s infinite linear;
}

.ring {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 1px solid rgba(0, 240, 255, 0.3);
    border-radius: 50%;
}

.r1 {
    transform: rotateY(0deg);
}

.r2 {
    transform: rotateY(60deg);
}

.r3 {
    transform: rotateY(120deg);
}

.core-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 50px;
    height: 50px;
    background: var(--accent-purple);
    border-radius: 50%;
    box-shadow: 0 0 50px 20px rgba(122, 0, 255, 0.6);
}

@keyframes rotateSphere {
    0% {
        transform: rotateX(20deg) rotateY(0deg);
    }

    100% {
        transform: rotateX(20deg) rotateY(360deg);
    }
}

/* CTA */
.cta-box {
    text-align: center;
    padding: 5rem 2rem;
    background: linear-gradient(135deg, rgba(15, 15, 25, 0.8), rgba(122, 0, 255, 0.1));
}

.cta-box h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-box p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

/* Footer */
footer {
    border-top: 1px solid var(--border-glass);
    padding: 4rem 0 2rem;
    background: #030305;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand p {
    color: var(--text-secondary);
    margin-top: 1rem;
    max-width: 250px;
}

.footer-links {
    display: flex;
    gap: 4rem;
    flex-wrap: wrap;
}

.link-group h4 {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.link-group a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    margin-bottom: 0.8rem;
    transition: var(--transition);
}

.link-group a:hover {
    color: var(--accent-blue);
}

.footer-bottom {
    text-align: center;
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.9rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

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

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

.delay-1 {
    transition-delay: 0.1s;
}

.delay-2 {
    transition-delay: 0.2s;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .why-layout {
        grid-template-columns: 1fr;
    }

    .abstract-sphere {
        width: 200px;
        height: 200px;
    }
}