:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #10b981;
    --dark: #0f172a;
    --darker: #020617;
    --light: #f8fafc;
    --gray: #94a3b8;
    --gradient: linear-gradient(135deg, #6366f1, #8b5cf6);
    --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 50px -10px rgba(0, 0, 0, 0.2);
    --radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--light);
    background-color: var(--darker);
    overflow-x: hidden;
}

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

.hero-container {
    display: flex;
    align-items: center;
    min-height: 90vh;
    padding: 120px 0 80px;
    gap: 60px;
}

section {
    padding: 80px 0;
}

.dark-bg {
    background-color: var(--dark);
}


h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { 
    font-size: clamp(2.5rem, 5vw, 3.5rem); 
}

h2 { 
    font-size: clamp(2rem, 4vw, 2.5rem); 
    margin-bottom: 1.5rem;
}

h3 { 
    font-size: clamp(1.3rem, 3vw, 1.5rem); 
    margin-bottom: 1rem;
}

.section-title {
    text-align: center;
    margin-bottom: 1rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: block;
    width: 100%;
}

.section-subtitle {
    text-align: center;
    color: var(--gray);
    font-size: clamp(1rem, 2vw, 1.1rem);
    max-width: 700px;
    margin: 0 auto 3rem;
    line-height: 1.6;
}

.highlight {
    color: var(--secondary);
}


.btn-primary, .btn-secondary, .btn-nav, .btn-small {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: var(--radius);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    gap: 10px;
    font-size: 1rem;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient);
    color: white;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-nav {
    padding: 10px 20px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid var(--primary);
    margin-left: 10px;
}

.btn-small {
    padding: 10px 20px;
    font-size: 0.95rem;
}


.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(15, 23, 42, 0.98);
    backdrop-filter: blur(10px);
    padding: 15px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

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

.nav-logo {
    font-size: clamp(1.5rem, 3vw, 1.8rem);
    font-weight: 800;
    color: white;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: default;
    padding-left: 10px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: clamp(20px, 2vw, 32px);
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-menu a {
    color: var(--light);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    padding: 8px 4px;
    font-size: clamp(0.9rem, 1.5vw, 1rem);
}

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

.hamburger {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}


.hero {
    padding-top: 100px;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-title {
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--gray);
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.hero-subtitle strong {
    color: var(--primary);
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.visual-container {
    position: relative;
    width: clamp(300px, 40vw, 420px);
    height: clamp(300px, 40vw, 420px);
}

.orbital-animation {
    position: relative;
    width: 100%;
    height: 100%;
}

.orbit {
    position: absolute;
    border: 1px dashed rgba(99, 102, 241, 0.4);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: orbit-rotate linear infinite;
}

.orbit-1 {
    width: 80%;
    height: 80%;
    animation-duration: 20s;
}
.orbit-2 {
    width: 60%;
    height: 60%;
    animation-duration: 15s;
    animation-direction: reverse;
}
.orbit-3 {
    width: 40%;
    height: 40%;
    animation-duration: 10s;
}

.node {
    position: absolute;
    width: clamp(40px, 8vw, 56px);
    height: clamp(40px, 8vw, 56px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    box-shadow: var(--shadow);
    font-size: clamp(0.8rem, 1.5vw, 1rem);
}

.crypto-node { background: var(--primary); }
.shield-node { background: var(--secondary); }
.tether-node { 
    background: #26a17b; 
}

.core {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: clamp(60px, 12vw, 90px);
    height: clamp(60px, 12vw, 90px);
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    box-shadow: 0 0 40px rgba(99, 102, 241, 0.5);
    animation: pulse 3s ease-in-out infinite;
}

.about-grid, .security-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.about-card, .security-card {
    background: rgba(30, 41, 59, 0.5);
    border-radius: var(--radius);
    padding: clamp(25px, 3vw, 36px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
    height: 100%;
}

.about-card:hover, .security-card:hover {
    border-color: var(--primary);
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.about-icon {
    font-size: clamp(2rem, 4vw, 2.8rem);
    color: var(--primary);
    margin-bottom: 20px;
}

.features-list {
    max-width: 800px;
    margin: 50px auto 0;
}

.feature-item {
    display: flex;
    gap: 25px;
    align-items: flex-start;
    margin-bottom: 40px;
    padding: clamp(20px, 3vw, 32px);
    background: rgba(30, 41, 59, 0.3);
    border-radius: var(--radius);
    border-left: 4px solid var(--primary);
    transition: var(--transition);
}

.feature-item:hover {
    background: rgba(30, 41, 59, 0.4);
    transform: translateX(5px);
}

.feature-icon {
    font-size: clamp(1.5rem, 3vw, 2rem);
    color: var(--secondary);
    margin-top: 5px;
    flex-shrink: 0;
}


.features-stats {
    display: flex;
    justify-content: center;
    gap: clamp(30px, 5vw, 60px);
    margin: 50px 0;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
    padding: 0 15px;
    min-width: 120px;
}

.stat-number {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    line-height: 1;
    margin-bottom: 10px;
}

.stat-label {
    color: var(--gray);
    font-size: clamp(0.9rem, 1.5vw, 1.1rem);
    font-weight: 500;
}


.calculator-form {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius);
    padding: clamp(20px, 3vw, 36px);
    margin: 30px auto;
    max-width: 650px;
    text-align: left;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.calc-row {
    margin-bottom: 25px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.calc-row label {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--light);
}

.calc-input-group {
    display: flex;
    align-items: center;
    gap: 20px;
    width: 100%;
}

.calc-row input[type="range"] {
    flex: 1;
    height: 10px;
    border-radius: 5px;
    background: var(--gray);
    outline: none;
    -webkit-appearance: none;
    min-width: 0;
}

.calc-row input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    border: 3px solid white;
    box-shadow: var(--shadow);
}

.calc-value {
    font-weight: 800;
    color: var(--secondary);
    min-width: 80px;
    font-size: 1.3rem;
    text-align: right;
}

.calc-row select {
    padding: 14px 20px;
    border-radius: var(--radius);
    border: 1px solid var(--primary);
    background: var(--darker);
    color: white;
    font-size: 1.05rem;
    width: 100%;
    cursor: pointer;
}

.calc-result {
    background: rgba(16, 185, 129, 0.1);
    border-radius: var(--radius);
    padding: clamp(20px, 3vw, 28px);
    margin: 25px 0;
    border-left: 4px solid var(--secondary);
}

.calc-result h3 {
    margin-top: 0;
    color: var(--secondary);
    margin-bottom: 15px;
}

.calc-result p {
    margin: 10px 0;
    font-size: 1.1rem;
}


.cta-section {
    padding: 80px 0;
}

.cta-box {
    background: var(--gradient);
    border-radius: var(--radius);
    padding: clamp(40px, 5vw, 60px);
    text-align: center;
    color: white;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
}


.faq-container {
    max-width: 800px;
    margin: 50px auto 0;
}

.faq-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 10px;
}

.faq-question {
    width: 100%;
    padding: 20px 0;
    background: none;
    border: none;
    color: white;
    font-size: clamp(1rem, 2vw, 1.15rem);
    font-weight: 600;
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: var(--transition);
    gap: 15px;
}

.faq-question:hover {
    color: var(--primary);
}

.faq-question span {
    flex: 1;
    text-align: left;
    line-height: 1.4;
}

.faq-question i {
    transition: transform 0.3s ease;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.faq-question.active i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease;
}

.faq-answer p {
    padding: 0 0 25px;
    color: var(--gray);
    font-size: 1.05rem;
    line-height: 1.6;
}

.footer {
    background-color: var(--dark);
    padding: 60px 0 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 50px;
}

.footer-logo {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.footer-logo-text {
    font-size: clamp(1.5rem, 3vw, 1.9rem);
    font-weight: 800;
    color: white;
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: default;
}

.footer-logo p {
    color: var(--gray);
    line-height: 1.6;
    max-width: 300px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.footer-links h4 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: white;
}

.footer-links a {
    color: var(--gray);
    text-decoration: none;
    transition: var(--transition);
    padding: 5px 0;
}

.footer-links a:hover {
    color: var(--primary);
    padding-left: 10px;
}

.footer-newsletter {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.footer-newsletter h4 {
    font-size: 1.3rem;
    color: white;
    margin-bottom: 10px;
}

.footer-newsletter p {
    color: var(--gray);
    line-height: 1.6;
}

.footer-contact {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 15px;
}

.footer-contact .btn-small {
    padding: 12px 24px;
    font-size: 1rem;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid var(--primary);
    font-weight: 600;
}

.contact-note {
    font-size: 0.9rem;
    color: var(--gray);
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 10px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
    color: var(--gray);
    font-size: 0.9rem;
    line-height: 1.6;
}

.footer-bottom p {
    margin-bottom: 15px;
}

.footer-bottom strong {
    color: var(--secondary);
}


@keyframes orbit-rotate {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 40px rgba(99, 102, 241, 0.5); }
    50% { box-shadow: 0 0 70px rgba(99, 102, 241, 0.8); }
}


.animate-pop { animation: pop-in 0.8s ease-out; }
.animate-slide-up { animation: slide-up 0.8s ease-out 0.2s both; }
.animate-slide-left { animation: slide-left 0.8s ease-out both; }
.animate-slide-right { animation: slide-right 0.8s ease-out both; }
.animate-fade-in { animation: fade-in 1s ease-out both; }
.animate-count { animation: count-pop 0.5s ease-out; }
.animate-pulse { animation: pulse 2s infinite; }

@keyframes pop-in {
    0% { opacity: 0; transform: scale(0.8); }
    100% { opacity: 1; transform: scale(1); }
}

@keyframes slide-up {
    0% { opacity: 0; transform: translateY(30px); }
    100% { opacity: 1; transform: translateY(0); }
}

@keyframes slide-left {
    0% { opacity: 0; transform: translateX(-30px); }
    100% { opacity: 1; transform: translateX(0); }
}

@keyframes slide-right {
    0% { opacity: 0; transform: translateX(30px); }
    100% { opacity: 1; transform: translateX(0); }
}

@keyframes fade-in {
    0% { opacity: 0; }
    100% { opacity: 1; }
}

@keyframes count-pop {
    0% { transform: scale(0); }
    70% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

@media (max-width: 1024px) {
    .hero-container {
        flex-direction: column;
        text-align: center;
        padding: 120px 0 60px;
        gap: 50px;
    }
    
    .hero-content {
        max-width: 700px;
        margin: 0 auto;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .visual-container {
        width: clamp(280px, 50vw, 400px);
        height: clamp(280px, 50vw, 400px);
    }
    
    .section {
        padding: 70px 0;
    }
    
    .cta-section {
        padding: 70px 0;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background-color: var(--dark);
        width: 100%;
        text-align: center;
        padding: 40px 20px;
        gap: 25px;
        transition: 0.3s;
        border-top: 1px solid rgba(255, 255, 255, 0.05);
        z-index: 999;
        height: calc(100vh - 70px);
        overflow-y: auto;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hamburger {
        display: block;
    }
    
    .navbar {
        padding: 12px 0;
    }
    
    .nav-logo {
        padding-left: 0;
    }
    
    .hero {
        padding-top: 90px;
    }
    
    .hero-container {
        padding: 100px 0 50px;
        gap: 40px;
    }
    
    .hero-title {
        font-size: clamp(1.8rem, 6vw, 2.5rem);
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
        margin-bottom: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .hero-buttons a {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .features-stats {
        gap: 40px;
    }
    
    .stat {
        min-width: 100px;
    }
    
    .stat-number {
        font-size: clamp(2rem, 6vw, 2.8rem);
    }
    
    .feature-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .calculator-form {
        padding: 25px 20px;
    }
    
    .calc-input-group {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .calc-value {
        text-align: left;
        width: 100%;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-logo p {
        max-width: 100%;
    }
    
    .footer-contact {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .footer {
        padding: 50px 0 25px;
    }
    
    .faq-question {
        padding: 18px 0;
        font-size: 1.05rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .nav-container {
        padding: 0 15px;
    }
    
    .hero-container {
        padding: 90px 0 40px;
        gap: 30px;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .cta-section {
        padding: 60px 0;
    }
    
    .about-grid, .security-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .about-card, .security-card {
        padding: 25px 20px;
    }
    
    .features-stats {
        flex-direction: column;
        gap: 30px;
        align-items: center;
    }
    
    .stat {
        width: 100%;
        max-width: 200px;
    }
    
    .cta-box {
        padding: 30px 20px;
    }
    
    .footer-bottom p {
        font-size: 0.85rem;
        text-align: center;
    }
    
    .faq-question span {
        font-size: 1rem;
        line-height: 1.3;
    }
}