:root {
    --primary: #00d2c0;
    --primary-dark: #00a799;
    --primary-light: rgba(0, 210, 192, 0.1);
    --dark: #0f0f11;
    --dark-card: #1a1a1c;
    --dark-accent: #232326;
    --text-white: #ffffff;
    --text-light: #f0f0f0;
    --text-muted: #a0a0a0;
    --gradient-teal: linear-gradient(135deg, #00d2c0, #00a799);
    --gradient-dark: linear-gradient(135deg, #1a1a1c, #242429);
    --transition-default: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--dark);
    color: var(--text-white);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    font-weight: 700;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
}

h2 {
    font-size: clamp(2rem, 4vw, 2.5rem);
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1.5rem;
}

.highlight {
    color: var(--primary);
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* Buttons & Links */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    transition: var(--transition-default);
    border: none;
    outline: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient-teal);
    color: var(--text-white);
    box-shadow: 0 10px 25px -10px rgba(0, 210, 192, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 30px -15px rgba(0, 210, 192, 0.5);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-light);
    font-weight: 500;
    transition: var(--transition-default);
}

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

.icon {
    width: 1.25rem;
    height: 1.25rem;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 1.5rem 0;
    transition: var(--transition-default);
    backdrop-filter: blur(10px);
    background: rgba(15, 15, 17, 0.85);
}

.header.scrolled {
    padding: 1rem 0;
    background: rgba(15, 15, 17, 0.95);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-white);
}

.logo img {
    height: 32px;
    width: auto;
}

.nav {
    display: flex;
    align-items: center;
    gap: 3rem;
}

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

.nav-link {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: var(--transition-default);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -6px;
    left: 0;
    background-color: var(--primary);
    transition: var(--transition-default);
}

.nav-link:hover {
    color: var(--text-white);
}

.nav-link:hover::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    background: transparent;
    border: none;
    width: 30px;
    height: 30px;
    flex-direction: column;
    justify-content: space-between;
    cursor: pointer;
    z-index: 101;
}

.mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-white);
    transition: var(--transition-default);
}

/* Hero Section */
.hero-section {
    padding: 180px 0 100px;
    position: relative;
    overflow: hidden;
}

.hero-inner {
    display: flex;
    align-items: center;
    gap: 4rem;
}

.hero-content {
    flex: 1;
    position: relative;
    z-index: 2;
}

.hero-text {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 550px;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.hero-image {
    flex: 1;
    position: relative;
    z-index: 2;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
}

.hero-blob {
    position: absolute;
    width: 800px;
    height: 800px;
    border-radius: 100%;
    background: var(--primary);
    filter: blur(150px);
    opacity: 0.05;
    z-index: 1;
}

.hero-blob:nth-child(1) {
    top: -400px;
    right: -300px;
}

.hero-blob:nth-child(2) {
    bottom: -400px;
    left: -300px;
    background: #662d91;
    opacity: 0.05;
}

/* Features Section */
.features-section {
    padding: 100px 0;
    position: relative;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--dark-card);
    border-radius: 16px;
    padding: 2rem;
    transition: var(--transition-default);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-teal);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-default);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 30px -15px rgba(0, 0, 0, 0.3);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-icon svg {
    width: 30px;
    height: 30px;
    stroke: var(--primary);
}

/* How It Works Section */
.how-section {
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.steps-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 4rem;
    flex-wrap: wrap;
}

.step-card {
    background: var(--dark-card);
    border-radius: 16px;
    padding: 2rem;
    width: 300px;
    text-align: center;
    position: relative;
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin: 0 auto 1.5rem;
}

.step-arrow {
    width: 80px;
    display: flex;
    justify-content: center;
    color: var(--primary);
}

.how-image {
    text-align: center;
}

.how-image img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
}

/* CTA Section */
.cta-section {
    padding: 100px 0;
    position: relative;
}

.cta-card {
    background: var(--dark-card);
    border-radius: 20px;
    padding: 3rem;
    display: flex;
    align-items: center;
    gap: 4rem;
    position: relative;
    overflow: hidden;
}

.cta-content {
    flex: 1;
    position: relative;
    z-index: 2;
}

.cta-content h2 {
    margin-bottom: 1.5rem;
}

.cta-content p {
    color: var(--text-muted);
    margin-bottom: 2rem;
    max-width: 500px;
}

.cta-image {
    flex: 1;
    position: relative;
    z-index: 2;
}

.cta-image img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.cta-blob {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 100%;
    background: var(--primary);
    filter: blur(150px);
    opacity: 0.05;
    z-index: 1;
}

.cta-blob:nth-child(1) {
    top: -300px;
    right: -300px;
}

.cta-blob:nth-child(2) {
    bottom: -300px;
    left: -300px;
    background: #662d91;
    opacity: 0.05;
}

/* FAQ Section */
.faq-section {
    padding: 100px 0;
}

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

.faq-item {
    background: var(--dark-card);
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 1.5rem;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    cursor: pointer;
}

.faq-question h3 {
    margin-bottom: 0;
}

.faq-toggle {
    background: transparent;
    border: none;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    transition: var(--transition-default);
    cursor: pointer;
}

.faq-toggle svg {
    transition: var(--transition-default);
}

.faq-item.active .faq-toggle svg {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 1.5rem 1.5rem;
    display: none;
}

.faq-item.active .faq-answer {
    display: block;
}

/* Footer */
.footer {
    background: var(--dark);
    padding: 5rem 0 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-inner {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

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

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.footer-logo img {
    height: 32px;
    width: auto;
}

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

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

.footer-links-column h4 {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

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

.footer-links li {
    margin-bottom: 1rem;
}

.footer-links a {
    color: var(--text-muted);
    transition: var(--transition-default);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    flex-wrap: wrap;
    gap: 1rem;
}

.copyright {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 0;
}

.footer-social {
    display: flex;
    gap: 1.5rem;
}

.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--dark-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-default);
    color: var(--text-muted);
}

.footer-social a:hover {
    transform: translateY(-5px);
    color: var(--primary);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-default);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-5px);
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .hero-inner, .cta-card {
        flex-direction: column;
        text-align: center;
    }

    .hero-text, .cta-content p {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-actions {
        justify-content: center;
    }

    .step-arrow {
        transform: rotate(90deg);
        margin: 1.5rem 0;
    }

    .steps-container {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .nav-items, .nav .btn {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .feature-card {
        padding: 1.5rem;
    }

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

    .cta-card {
        padding: 2rem;
    }

    .footer-main {
        flex-direction: column;
    }

    .footer-links-container {
        gap: 2rem;
    }

    .footer-bottom {
        flex-direction: column;
    }
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    height: 100vh;
    background: var(--dark);
    z-index: 100;
    padding: 5rem 2rem 2rem;
    transform: translateX(100%);
    transition: var(--transition-default);
}

.mobile-menu.open {
    transform: translateX(0);
}

.mobile-menu .nav-items {
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.mobile-menu .nav-link {
    font-size: 1.2rem;
}

.mobile-menu .btn {
    margin-top: 1.5rem;
    width: 100%;
}

/* Animation for mobile menu toggle */
.mobile-menu-toggle.active span:nth-child(1) {
    transform: translateY(14px) rotate(45deg);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: translateY(-14px) rotate(-45deg);
}