/* Global Reset and Variables */
* {
    box-sizing: border-box;
}

:root {
    --color-background: #0e1019;
    --color-surface: #111423;
    --color-panel: #171b2f;
    --color-light: #f5f7fa;
    --color-muted: rgba(245, 247, 250, 0.72);
    --color-accent: #16c0c9;
    --color-accent-dark: #0f8d94;
    --color-border: rgba(255, 255, 255, 0.08);
    --color-gradient-start: #0e1019;
    --color-gradient-end: #20263b;
    --max-width: 1120px;
    --transition-base: 0.3s ease;
    font-family: 'Manrope', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

body {
    margin: 0;
    background: var(--color-background);
    color: var(--color-light);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    font-family: 'Manrope', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

img {
    display: block;
    max-width: 100%;
}

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

a:hover {
    text-decoration: none;
}

.container {
    width: min(100% - 3rem, var(--max-width));
    margin-inline: auto;
}

.section-heading {
    max-width: 720px;
    margin-bottom: 3rem;
}

.section-heading h2 {
    margin: 0.5rem 0 0;
    font-size: clamp(2.2rem, 1.7rem + 1.5vw, 3rem);
}

.eyebrow {
    letter-spacing: 0.18em;
    text-transform: uppercase;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--color-accent);
}

.lead {
    font-size: clamp(1.1rem, 1rem + 0.8vw, 1.4rem);
    color: var(--color-muted);
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(14, 16, 25, 0.55);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid transparent;
    transition: background var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.site-header.sticky {
    background: rgba(14, 16, 25, 0.88);
    border-color: var(--color-border);
    box-shadow: 0 12px 32px rgba(4, 7, 21, 0.4);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem 0;
    gap: 1.5rem;
    position: relative;
}

.logo img {
    height: 48px;
    width: 48px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

nav ul {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

nav ul li a {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--color-muted);
    padding: 0.35rem 0.4rem;
    border-radius: 999px;
    transition: color var(--transition-base), background var(--transition-base);
}

nav ul li a:hover,
nav ul li a:focus-visible {
    color: var(--color-light);
    background: rgba(22, 192, 201, 0.12);
}

.cta-button-nav {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.55rem 1.2rem;
    background: linear-gradient(135deg, var(--color-accent), #62f0e9);
    color: #020306;
    font-weight: 700;
    border-radius: 999px;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.cta-button-nav img {
    width: 18px;
    height: 18px;
}

.cta-button-nav:hover,
.cta-button-nav:focus-visible {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(22, 192, 201, 0.32);
}

.menu-toggle {
    display: none;
    background: none;
    border: 0;
    width: 48px;
    height: 48px;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    position: relative;
}

.menu-icon,
.menu-icon::before,
.menu-icon::after {
    content: '';
    display: block;
    width: 25px;
    height: 2px;
    background: var(--color-light);
    border-radius: 999px;
    position: relative;
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.menu-icon::before {
    position: absolute;
    transform: translateY(-7px);
}

.menu-icon::after {
    position: absolute;
    transform: translateY(7px);
}

.menu-toggle.active .menu-icon {
    background: transparent;
}

.menu-toggle.active .menu-icon::before {
    transform: rotate(45deg);
}

.menu-toggle.active .menu-icon::after {
    transform: rotate(-45deg);
}

/* Hero */
.hero-section {
    position: relative;
    padding: 8rem 0 6rem;
    background: radial-gradient(circle at top left, rgba(22, 192, 201, 0.04), transparent 45%),
                radial-gradient(circle at top right, rgba(98, 240, 233, 0.05), transparent 50%),
                linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
    overflow: hidden;
}

.hero-section::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 80% 20%, rgba(22, 192, 201, 0.16), transparent 40%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 4rem;
    align-items: center;
}

.hero-text h1 {
    font-size: clamp(2.6rem, 2.2rem + 1.8vw, 3.6rem);
    margin: 0.75rem 0 1rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
    margin: 2rem 0;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    background: linear-gradient(135deg, var(--color-accent), #62f0e9);
    color: #020306;
    font-weight: 700;
    padding: 1rem 1.8rem;
    border-radius: 999px;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.cta-button img {
    width: 22px;
    height: 22px;
}

.cta-button:hover,
.cta-button:focus-visible {
    transform: translateY(-3px);
    box-shadow: 0 15px 32px rgba(22, 192, 201, 0.35);
}

.secondary-link {
    font-weight: 600;
    color: var(--color-muted);
    padding: 0.7rem 1.2rem;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: border-color var(--transition-base), color var(--transition-base);
}

.secondary-link:hover,
.secondary-link:focus-visible {
    color: var(--color-light);
    border-color: rgba(255, 255, 255, 0.2);
}

.social-proof {
    display: inline-flex;
    align-items: baseline;
    gap: 0.4rem;
    font-weight: 600;
    font-size: 1rem;
    color: var(--color-muted);
}

.server-count-value {
    font-size: 2.2rem;
    color: var(--color-light);
    font-weight: 700;
}

.hero-image {
    display: flex;
    justify-content: flex-end;
}

.device-card {
    position: relative;
    background: rgba(17, 20, 35, 0.75);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 24px;
    padding: 2.5rem 2rem;
    max-width: 360px;
    backdrop-filter: blur(18px);
    box-shadow: 0 24px 48px rgba(4, 11, 30, 0.45);
}

.device-card img {
    width: 84px;
    height: 84px;
    border-radius: 18px;
    margin-bottom: 1.5rem;
}

.device-card-title {
    margin: 0;
    font-size: 0.85rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--color-muted);
}

.device-card-track {
    margin: 0.45rem 0 1.25rem;
    font-weight: 600;
}

.device-card-wave {
    height: 48px;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 120 32" preserveAspectRatio="none"><path fill="%2316c0c9" fill-opacity="0.6" d="M0,22 L10,12 L20,26 L30,8 L40,24 L50,6 L60,22 L70,8 L80,20 L90,10 L100,26 L110,12 L120,22 L120,32 L0,32 Z"/></svg>') no-repeat center/cover;
    border-radius: 12px;
}

/* Trust strip */
.trust-strip {
    background: rgba(17, 20, 35, 0.84);
    padding: 4.5rem 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.trust-strip-inner {
    display: grid;
    grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
    gap: 3rem;
}

.trust-metrics {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2rem;
}

.trust-metrics article {
    padding: 2rem;
    border-radius: 20px;
    background: rgba(23, 27, 47, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.06);
    min-height: 180px;
}

.trust-metrics h3 {
    margin: 0 0 0.75rem;
}

.trust-metrics p {
    color: var(--color-muted);
    margin: 0;
}

/* Features */
.features-section {
    padding: 6rem 0;
    background: linear-gradient(180deg, rgba(23, 27, 47, 0.45), transparent 45%);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: rgba(17, 20, 35, 0.82);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 22px;
    padding: 2.4rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-6px);
    border-color: rgba(98, 240, 233, 0.35);
    box-shadow: 0 20px 36px rgba(12, 18, 42, 0.45);
}

.feature-card img {
    width: 60px;
    height: 60px;
}

.feature-card p {
    color: var(--color-muted);
    margin: 0;
}

.numeric {
    background: linear-gradient(135deg, #62f0e9, var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* How it works */
.how-section {
    padding: 6rem 0;
}

.steps {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
}

.steps li {
    background: rgba(17, 20, 35, 0.82);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: 22px;
    padding: 2.4rem 2rem;
    position: relative;
    counter-increment: step;
}

.steps li::before {
    content: counter(step);
    position: absolute;
    top: 1.2rem;
    left: 1.6rem;
    font-size: 1.8rem;
    font-weight: 700;
    color: rgba(98, 240, 233, 0.4);
}

.steps h3 {
    margin-top: 1rem;
    margin-bottom: 0.75rem;
}

.steps p {
    color: var(--color-muted);
    margin: 0;
}

/* Testimonial */
.testimonial-section {
    padding: 6rem 0;
    background: linear-gradient(135deg, rgba(98, 240, 233, 0.08), transparent 60%);
}

.testimonial-inner {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 3rem;
    align-items: center;
}

.testimonial-copy blockquote {
    margin: 1.5rem 0;
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--color-light);
}

.testimonial-copy cite {
    font-style: normal;
    color: var(--color-muted);
}

.testimonial-card {
    background: rgba(17, 20, 35, 0.82);
    border-radius: 22px;
    border: 1px solid rgba(255, 255, 255, 0.06);
    padding: 2.4rem 2rem;
}

.testimonial-card .card-title {
    text-transform: uppercase;
    letter-spacing: 0.2em;
    font-size: 0.75rem;
    color: rgba(98, 240, 233, 0.65);
    margin-bottom: 1.2rem;
}

.testimonial-card ul {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 0.75rem;
}

.testimonial-card li {
    color: var(--color-muted);
}

/* FAQ */
.faq-section {
    padding: 6rem 0;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
}

.faq-grid article {
    background: rgba(17, 20, 35, 0.82);
    border-radius: 22px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 2.2rem 2rem;
}

.faq-grid h3 {
    margin: 0 0 1rem;
}

.faq-grid p {
    margin: 0;
    color: var(--color-muted);
}

.faq-grid a {
    color: #62f0e9;
    text-decoration: underline;
}

.policy-main {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.policy-hero {
    padding: 6rem 0 3.5rem;
    background: linear-gradient(135deg, rgba(22, 192, 201, 0.12), rgba(17, 20, 35, 0.85));
    border-bottom: 1px solid var(--color-border);
}

.policy-hero-inner {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 3rem;
    flex-wrap: wrap;
}

.policy-hero-copy h1 {
    margin: 0.5rem 0 1rem;
    font-size: clamp(2.2rem, 1.8rem + 1.6vw, 3rem);
}

.policy-meta {
    display: inline-flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 1.1rem 1.5rem;
    border-radius: 18px;
    background: rgba(8, 10, 18, 0.72);
    border: 1px solid rgba(255, 255, 255, 0.06);
    min-width: 220px;
}

.updated-label {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: rgba(245, 247, 250, 0.6);
}

.policy-meta time {
    font-weight: 600;
    color: var(--color-light);
}

.policy-body {
    padding: 4.5rem 0 6rem;
    background: linear-gradient(180deg, rgba(8, 10, 18, 0.92), rgba(17, 20, 35, 0.85));
}

.policy-article {
    background: rgba(17, 20, 35, 0.88);
    border-radius: 26px;
    border: 1px solid rgba(255, 255, 255, 0.06);
    padding: clamp(2.5rem, 2rem + 1vw, 3.2rem);
    display: grid;
    gap: 2.2rem;
    box-shadow: 0 22px 44px rgba(5, 9, 26, 0.55);
}

.policy-article > p {
    color: var(--color-muted);
    margin: 0;
}

.policy-block {
    display: grid;
    gap: 0.8rem;
}

.policy-block h2 {
    margin: 0;
    font-size: 1.45rem;
}

.policy-block p {
    margin: 0;
    color: var(--color-muted);
}

.policy-block a {
    color: #62f0e9;
    text-decoration: underline;
}

.policy-block a:hover,
.policy-block a:focus-visible {
    color: var(--color-light);
}

@media (max-width: 860px) {
    .policy-meta {
        min-width: 0;
        width: 100%;
    }
}

@media (max-width: 640px) {
    .policy-body {
        padding: 3.5rem 0 5rem;
    }

    .policy-article {
        padding: 2rem;
    }
}

/* Invite */
.invite-section {
    padding: 6rem 0 6.5rem;
    text-align: center;
    background: linear-gradient(135deg, rgba(22, 192, 201, 0.12), rgba(23, 27, 47, 0.65));
}

.invite-section h2 {
    font-size: clamp(2rem, 1.6rem + 1.5vw, 2.8rem);
    margin: 0 0 1.5rem;
}

.invite-section p {
    margin: 0 0 2.2rem;
    color: var(--color-muted);
}

/* Footer */
.site-footer {
    padding: 2.5rem 0 3rem;
    background: rgba(8, 10, 18, 0.92);
    border-top: 1px solid var(--color-border);
}

.footer-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1.2rem;
}

.footer-inner p {
    margin: 0;
    color: var(--color-muted);
}

.footer-links {
    display: flex;
    gap: 1.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-links a {
    color: var(--color-muted);
    font-weight: 500;
}

.footer-links a:hover,
.footer-links a:focus-visible {
    color: var(--color-light);
}

/* Responsive */
@media (max-width: 1024px) {
    nav ul {
        gap: 1rem;
    }

    .hero-content {
        gap: 3rem;
    }

    .trust-strip-inner {
        grid-template-columns: 1fr;
    }

    .trust-metrics {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    }
}

@media (max-width: 860px) {
    .menu-toggle {
        display: inline-flex;
    }

    .nav {
        position: absolute;
        top: calc(100% + 0.75rem);
        right: 1.5rem;
        left: 1.5rem;
        background: rgba(12, 15, 28, 0.96);
        border: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: 20px;
        box-shadow: 0 18px 40px rgba(5, 9, 26, 0.6);
        padding: 1.2rem 1rem;
        display: flex;
        flex-direction: column;
        opacity: 0;
        transform: translateY(-12px);
        pointer-events: none;
        visibility: hidden;
        transition: opacity var(--transition-base), transform var(--transition-base);
        z-index: 200;
    }

    .nav ul {
        flex-direction: column;
        align-items: stretch;
        gap: 0.4rem;
        width: 100%;
    }

    .nav ul li a,
    .cta-button-nav {
        justify-content: center;
        width: 100%;
    }

    .nav.show {
        opacity: 1;
        transform: translateY(0);
        pointer-events: auto;
        visibility: visible;
    }

    .testimonial-inner,
    .hero-content {
        grid-template-columns: 1fr;
    }

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

    .device-card {
        width: 100%;
    }
}

@media (max-width: 640px) {
    .container {
        width: min(100% - 2rem, var(--max-width));
    }

    .hero-section {
        padding: 7rem 0 4.5rem;
    }

    .hero-text h1 {
        font-size: clamp(2.2rem, 2rem + 1.2vw, 2.6rem);
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

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

    .social-proof {
        flex-wrap: wrap;
        gap: 0.2rem;
    }

    .steps {
        gap: 1.5rem;
    }

    .footer-inner {
        flex-direction: column;
        text-align: center;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}

html {
    scroll-behavior: smooth;
}