:root {
    color-scheme: light dark;
    --bg: #05060a;
    --bg-alt: #0d1117;
    --card: #111620;
    --accent: #00d4ff;
    --accent-strong: #4cf1c9;
    --text: #f4f6fb;
    --muted: #a0acbe;
    --divider: rgba(255,255,255,0.08);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Inter', 'SF Pro Display', 'Segoe UI', sans-serif;
    background: radial-gradient(circle at top, #111936 0%, #05060a 55%);
    color: var(--text);
    line-height: 1.6;
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.hero {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    padding: 4rem clamp(1.5rem, 4vw, 6rem);
    align-items: center;
}

.hero-content {
    max-width: 520px;
}

.app-icon {
    width: 96px;
    height: 96px;
    border-radius: 22%;
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.2em;
    font-size: 0.85rem;
    color: var(--accent-strong);
    margin: 1.5rem 0 0.5rem;
}

h1 {
    font-size: clamp(2.2rem, 4vw, 3rem);
    margin: 0 0 1rem;
}

.lead {
    font-size: 1.1rem;
    color: var(--muted);
}

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

.primary-cta,
.secondary-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 1.8rem;
    border-radius: 999px;
    font-weight: 600;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.primary-cta {
    background: linear-gradient(120deg, var(--accent), var(--accent-strong));
    color: #02050b;
    box-shadow: 0 10px 25px rgba(0, 212, 255, 0.35);
}

.secondary-cta {
    border: 1px solid var(--divider);
    color: var(--text);
}

.primary-cta:hover,
.secondary-cta:hover {
    transform: translateY(-2px);
    text-decoration: none;
}

.meta {
    padding: 0;
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.95rem;
    color: var(--muted);
}

.hero-media img {
    width: min(360px, 100%);
    border-radius: 28px;
    border: 1px solid var(--divider);
    box-shadow: 0 35px 65px rgba(0, 0, 0, 0.45);
    justify-self: center;
}

.section {
    padding: 3.5rem clamp(1.5rem, 4vw, 6rem);
}

.features {
    background: var(--bg-alt);
}

.features h2,
.plans h2 {
    text-align: center;
    margin-bottom: 2.5rem;
}

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

.features-grid article {
    background: var(--card);
    padding: 1.5rem;
    border-radius: 18px;
    border: 1px solid var(--divider);
    min-height: 190px;
}

.features-grid h3 {
    margin-top: 0;
    margin-bottom: 0.6rem;
    font-size: 1.1rem;
}

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

.plans {
    display: flex;
    justify-content: center;
}

.plans-card {
    background: var(--card);
    padding: 2.5rem;
    border-radius: 28px;
    border: 1px solid var(--divider);
    max-width: 520px;
    text-align: center;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.35);
}

.plans-card ul {
    list-style: none;
    padding: 0;
    margin: 0 0 2rem;
    color: var(--muted);
}

.plans-card li {
    margin-bottom: 0.75rem;
}

footer {
    padding: 2rem clamp(1.5rem, 4vw, 6rem);
    border-top: 1px solid var(--divider);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 1rem;
    font-size: 0.95rem;
    color: var(--muted);
}

.footer-links {
    display: flex;
    gap: 1.2rem;
}

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

@media (max-width: 600px) {
    .cta-group {
        flex-direction: column;
        align-items: stretch;
    }

    .primary-cta,
    .secondary-cta {
        width: 100%;
        text-align: center;
    }
}