*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: #0f172a;
    background: #f8fafc;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
}

.nav {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: 1rem clamp(1rem, 4vw, 4rem);
    background: rgba(248, 250, 252, 0.92);
    border-bottom: 1px solid #e2e8f0;
    backdrop-filter: blur(14px);
}

.brand {
    font-weight: 800;
    text-decoration: none;
    letter-spacing: 0;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.95rem;
}

.nav-links a {
    color: #475569;
    text-decoration: none;
}

.nav-links a:hover {
    color: #0f172a;
}

.nav-cta,
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 1rem;
    border-radius: 8px;
    background: #0877f2;
    color: #fff !important;
    font-weight: 700;
    text-decoration: none;
}

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(260px, 0.75fr);
    gap: clamp(2rem, 6vw, 5rem);
    align-items: center;
    max-width: 1160px;
    margin: 0 auto;
    padding: clamp(3rem, 7vw, 6rem) clamp(1rem, 4vw, 2rem);
}

.hero-copy h1 {
    margin: 0;
    max-width: 680px;
    font-size: clamp(3rem, 7vw, 5.75rem);
    line-height: 0.95;
    letter-spacing: 0;
}

.lead {
    max-width: 620px;
    margin: 1.35rem 0 0;
    color: #475569;
    font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.eyebrow {
    margin: 0 0 0.8rem;
    color: #0877f2;
    font-weight: 800;
    letter-spacing: 0;
    text-transform: uppercase;
    font-size: 0.78rem;
}

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

.app-store-btn {
    display: inline-block;
    line-height: 0;
}

.app-store-btn img {
    height: 54px;
}

.secondary-link {
    color: #0f172a;
    font-weight: 700;
    text-decoration: none;
}

.phone-card {
    justify-self: center;
    width: min(310px, 82vw);
    padding: 12px;
    border-radius: 38px;
    background: #020617;
    box-shadow: 0 30px 80px rgba(15, 23, 42, 0.28);
}

.phone-card img {
    display: block;
    width: 100%;
    border-radius: 28px;
}

.proof-strip {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    max-width: 960px;
    margin: 0 auto 2rem;
    overflow: hidden;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    background: #fff;
}

.proof-strip div {
    padding: 1.2rem;
    text-align: center;
    border-right: 1px solid #e2e8f0;
}

.proof-strip div:last-child {
    border-right: 0;
}

.proof-strip strong,
.proof-strip span {
    display: block;
}

.proof-strip strong {
    font-size: 1.1rem;
}

.proof-strip span {
    color: #64748b;
    font-size: 0.9rem;
}

.section {
    max-width: 1080px;
    margin: 0 auto;
    padding: clamp(3rem, 6vw, 5rem) clamp(1rem, 4vw, 2rem);
}

.section-heading {
    max-width: 680px;
    margin-bottom: 1.6rem;
}

h2 {
    margin: 0;
    font-size: clamp(2rem, 4vw, 3.25rem);
    line-height: 1.05;
    letter-spacing: 0;
}

h3 {
    margin: 0.8rem 0 0.35rem;
    line-height: 1.15;
}

.feature-grid,
.link-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.feature-grid article,
.link-grid a,
.price-card,
.content-card {
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    background: #fff;
    box-shadow: 0 14px 32px rgba(15, 23, 42, 0.05);
}

.feature-grid article {
    padding: 1.2rem;
}

.feature-grid p,
.section p,
.link-grid span {
    color: #64748b;
}

.icon {
    display: inline-flex;
    width: 42px;
    height: 42px;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: #eaf3ff;
    color: #0877f2;
    font-weight: 900;
}

.split {
    display: grid;
    grid-template-columns: 1fr minmax(280px, 0.75fr);
    gap: 2rem;
    align-items: center;
}

.price-card {
    padding: 0.8rem;
}

.price-row {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem;
    border-radius: 8px;
    color: #475569;
}

.price-row.featured {
    background: #0877f2;
    color: #fff;
}

.link-grid {
    grid-template-columns: repeat(3, 1fr);
}

.link-grid a {
    display: block;
    padding: 1.2rem;
    text-decoration: none;
}

.link-grid strong,
.link-grid span {
    display: block;
}

.content-page {
    max-width: 860px;
    margin: 0 auto;
    padding: clamp(3rem, 7vw, 5rem) 1rem;
}

.content-card {
    padding: clamp(1.2rem, 4vw, 2.2rem);
}

.content-card h1 {
    margin: 0 0 1rem;
    font-size: clamp(2.4rem, 6vw, 4rem);
    line-height: 1;
}

.content-card h2 {
    margin-top: 2rem;
    font-size: clamp(1.6rem, 3vw, 2.2rem);
}

.content-card li {
    margin: 0.5rem 0;
    color: #475569;
}

.inline-cta {
    margin-top: 1.4rem;
    padding: 1rem;
    border-radius: 10px;
    background: #eef6ff;
}

.cta {
    padding: clamp(3rem, 6vw, 5rem) 1rem;
    text-align: center;
    color: #fff;
    background: #0877f2;
}

.cta p {
    color: rgba(255, 255, 255, 0.86);
}

.footer {
    padding: 2rem 1rem;
    text-align: center;
    color: #94a3b8;
    background: #020617;
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1rem;
}

.footer a {
    color: #cbd5e1;
    text-decoration: none;
}

@media (max-width: 860px) {
    .hero,
    .split {
        grid-template-columns: 1fr;
    }

    .feature-grid,
    .link-grid,
    .proof-strip {
        grid-template-columns: 1fr;
    }

    .proof-strip div {
        border-right: 0;
        border-bottom: 1px solid #e2e8f0;
    }

    .proof-strip div:last-child {
        border-bottom: 0;
    }
}

@media (max-width: 640px) {
    .nav {
        align-items: flex-start;
        flex-direction: column;
    }

    .nav-links {
        width: 100%;
        overflow-x: auto;
        padding-bottom: 0.2rem;
    }
}