:root {
    --bg: #020305;
    --surface: #0b0f16;
    --surface-muted: #111726;
    --card: #151c2f;
    --accent: #6ef7c8;
    --accent-2: #56b4ff;
    --text: #f4f6ff;
    --text-muted: #9da8c2;
    --border: rgba(255,255,255,0.08);
    --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background: radial-gradient(circle at top, rgba(86,180,255,0.25), transparent 50%), var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

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

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

ul {
    list-style: none;
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.2em;
    font-size: 0.75rem;
    color: var(--accent);
}

h1, h2, h3 {
    line-height: 1.2;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 1.6rem;
    background: linear-gradient(120deg, var(--accent), var(--accent-2));
    border-radius: 999px;
    color: #04101a;
    font-weight: 600;
    box-shadow: 0 10px 30px rgba(110, 247, 200, 0.35);
    border: none;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 35px rgba(110, 247, 200, 0.4);
}

.btn.secondary {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
    box-shadow: none;
}

.btn.ghost {
    color: var(--text);
    background: rgba(255,255,255,0.08);
    box-shadow: none;
}

header.hero {
    min-height: 100vh;
    padding: 2.5rem clamp(1.5rem, 6vw, 5rem) 4rem;
    background: radial-gradient(circle at 30% 20%, rgba(86,180,255,0.35), transparent 45%),
                radial-gradient(circle at 70% 10%, rgba(110,247,200,0.25), transparent 40%),
                var(--surface);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    margin-bottom: 4rem;
    position: relative;
}

.nav ul {
    display: flex;
    gap: 1.5rem;
    color: var(--text-muted);
}

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

.logo {
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: 0.1em;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 0.35rem;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: rgba(255,255,255,0.02);
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    height: 2px;
    width: 18px;
    background: var(--text);
    margin: 0 auto;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav.is-open .nav-toggle span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.nav.is-open .nav-toggle span:nth-child(2) {
    opacity: 0;
}

.nav.is-open .nav-toggle span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

.nav.is-open ul {
    display: flex;
}

.hero-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
    align-items: center;
}

.hero-text h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    margin: 1rem 0;
}

.lead {
    max-width: 520px;
    color: var(--text-muted);
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin: 2rem 0;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.hero-stats span {
    font-size: 1.75rem;
    font-weight: 600;
}

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

.device-mockup {
    width: min(360px, 100%);
    padding: 1.2rem;
    border-radius: 30px;
    background: rgba(4, 5, 8, 0.7);
    border: 1px solid rgba(255,255,255,0.08);
    box-shadow: var(--shadow);
}

.device-mockup .screen {
    border-radius: 20px;
    overflow: hidden;
    position: relative;
    background: var(--surface-muted);
    min-height: 520px;
}

.device-mockup .gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(86,180,255,0.7), rgba(10,12,20,0.9));
    opacity: 0.7;
}

.mockup-content {
    position: relative;
    padding: 2rem;
    font-weight: 500;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

main {
    padding: 0 clamp(1.5rem, 6vw, 5rem);
}

.section {
    padding: 5rem 0;
    border-bottom: 1px solid var(--border);
}

.section.muted {
    background: rgba(10,14,24,0.65);
    border-radius: 36px;
    margin: 4rem 0;
    padding-inline: clamp(1.5rem, 5vw, 3rem);
}

.section-header {
    max-width: 640px;
    margin-bottom: 3rem;
}

.section-header.centered {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

.section-header.centered p {
    margin-left: auto;
    margin-right: auto;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}

.card {
    background: var(--card);
    border-radius: 24px;
    padding: 2rem;
    border: 1px solid var(--border);
    min-height: 220px;
}

.split {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
    align-items: center;
}

.split ul li {
    color: var(--text-muted);
    margin-bottom: 0.8rem;
    padding-left: 1.2rem;
    position: relative;
}

.split ul li::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    position: absolute;
    left: 0;
    top: 0.6rem;
}

.pulse {
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(110,247,200,0.5), rgba(14,20,35,0.9));
    display: grid;
    place-items: center;
    position: relative;
    overflow: hidden;
}

.pulse .ring {
    position: absolute;
    width: 60%;
    height: 60%;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50%;
    animation: pulse 4s linear infinite;
}

.pulse .ring.delay {
    animation-delay: 1.5s;
}

.pulse .center {
    width: 110px;
    height: 110px;
    border-radius: 24px;
    background: var(--accent);
    color: #04101a;
    display: grid;
    place-items: center;
    font-weight: 700;
    font-size: 1.25rem;
}

.video-frame {
    border: 1px dashed var(--accent-2);
    border-radius: 24px;
    padding: 4rem 2rem;
    text-align: center;
    position: relative;
}

.video-frame .badge {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: rgba(86,180,255,0.2);
    padding: 0.35rem 1rem;
    border-radius: 999px;
    font-size: 0.85rem;
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}

blockquote {
    background: rgba(255,255,255,0.03);
    padding: 2rem;
    border-radius: 24px;
    border: 1px solid var(--border);
}

blockquote cite {
    display: block;
    margin-top: 1rem;
    color: var(--text-muted);
    font-style: normal;
}

.pricing {
    text-align: center;
}

.pricing-card {
    margin: 0 auto;
    max-width: 420px;
    background: var(--card);
    border-radius: 28px;
    padding: 2.5rem;
    border: 1px solid var(--border);
}

.pricing-card .tagline {
    color: var(--text-muted);
    margin-top: 0.5rem;
}

.price {
    font-size: 2.8rem;
    font-weight: 700;
    margin: 1rem 0;
}

.price span {
    font-size: 1rem;
    color: var(--text-muted);
}

.pricing-card ul {
    margin: 2rem 0;
    color: var(--text-muted);
}

.pricing-card li {
    margin-bottom: 0.8rem;
}

.download-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.footer {
    padding: 2rem clamp(1.5rem, 6vw, 5rem);
    color: var(--text-muted);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 1rem;
    font-size: 0.9rem;
}

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

[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

[data-animate].visible {
    opacity: 1;
    transform: translateY(0);
}

@keyframes pulse {
    0% { transform: scale(0.8); opacity: 0; }
    40% { opacity: 1; }
    100% { transform: scale(1.6); opacity: 0; }
}

@media (max-width: 768px) {
    header.hero {
        padding-top: 1.5rem;
    }
    .nav-toggle {
        display: flex;
    }
    .nav ul {
        flex-direction: column;
        gap: 1rem;
        position: absolute;
        right: 0;
        top: 60px;
        background: rgba(8,12,20,0.95);
        border: 1px solid var(--border);
        border-radius: 20px;
        padding: 1rem 1.5rem;
        width: min(260px, 80vw);
        display: none;
        box-shadow: var(--shadow);
        z-index: 10;
    }
    .nav a {
        padding: 0.25rem 0;
    }
    .hero-content {
        gap: 2.5rem;
    }
    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }
    .hero-stats {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }
    .download-buttons {
        flex-direction: column;
    }
}

@media (max-width: 540px) {
    .hero-stats span {
        font-size: 1.4rem;
    }
    .section {
        padding: 4rem 0;
    }
    .pricing-card {
        padding: 2rem;
    }
    .footer {
        flex-direction: column;
        align-items: flex-start;
    }
}