:root {
    --bg: #f5f6fa; --surface: #ffffff; --border: #e5e7eb;
    --text: #111827; --text-muted: #4b5563;
    --primary: #4f46e5; --primary-hover: #4338ca; --primary-50: #eef2ff;
}
* { box-sizing: border-box; }
body {
    margin: 0; font-family: 'Inter', system-ui, sans-serif;
    color: var(--text); background: var(--bg); line-height: 1.55;
}
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); }
code { font-family: ui-monospace, 'JetBrains Mono', monospace; background: #eef2ff; padding: 1px 6px; border-radius: 4px; font-size: .9em; }

.nav {
    display: flex; justify-content: space-between; align-items: center;
    padding: 18px 32px; background: #fff; border-bottom: 1px solid var(--border);
    position: sticky; top: 0; z-index: 20;
}
.nav__brand { display: flex; align-items: center; gap: 10px; font-weight: 600; color: var(--text); }
.nav__logo { width: 28px; height: 28px; border-radius: 6px; background: var(--primary); color: #fff; display: grid; place-items: center; font-weight: 700; }
.nav nav { display: flex; gap: 18px; align-items: center; }
.nav nav a { color: var(--text-muted); font-size: .95rem; }

.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 9px 18px; border-radius: 8px; font-weight: 500; font-size: .95rem;
    text-decoration: none; border: 1px solid transparent; cursor: pointer;
    transition: background .15s, border-color .15s, color .15s;
}
.btn--primary { background: var(--primary); color: #fff !important; border-color: var(--primary); }
.btn--primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }
.btn--secondary { background: #fff; color: var(--text); border-color: var(--border); }
.btn--secondary:hover { background: var(--bg); }
.btn--lg { padding: 13px 24px; font-size: 1rem; }

.hero {
    max-width: 900px; margin: 0 auto;
    padding: 100px 24px 60px; text-align: center;
}
.eyebrow {
    display: inline-block; padding: 5px 12px; border-radius: 999px;
    background: var(--primary-50); color: var(--primary); font-size: .82rem; font-weight: 500;
    margin-bottom: 22px;
}
.hero h1 { font-size: clamp(2rem, 5vw, 3.2rem); margin: 0 0 18px; letter-spacing: -0.02em; line-height: 1.1; }
.hero p { font-size: 1.1rem; color: var(--text-muted); max-width: 640px; margin: 0 auto 30px; }
.cta { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; }

.grid {
    max-width: 1100px; margin: 40px auto 80px;
    padding: 0 24px;
    display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px;
}
.grid article {
    background: #fff; border: 1px solid var(--border); border-radius: 12px;
    padding: 22px;
}
.grid h3 { margin: 0 0 8px; font-size: 1.05rem; color: var(--text); }
.grid p  { margin: 0; color: var(--text-muted); font-size: .92rem; }

.planes { max-width: 1100px; margin: 0 auto 100px; padding: 0 24px; text-align: center; }
.planes h2 { font-size: 2rem; margin: 0 0 10px; letter-spacing: -0.02em; }
.planes > p { color: var(--text-muted); max-width: 620px; margin: 0 auto 30px; }
.plans-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; }
.plan { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 22px 16px; }
.plan h3 { margin: 0 0 8px; font-size: 1.3rem; }
.plan .price { color: var(--primary); font-weight: 600; margin: 0; }

footer {
    display: flex; justify-content: space-between; align-items: center;
    padding: 26px 32px; border-top: 1px solid var(--border);
    background: #fff; color: var(--text-muted); font-size: .88rem;
}
footer a { color: var(--text-muted); margin-left: 16px; }

@media (max-width: 600px) {
    .nav { padding: 14px 18px; }
    .nav nav { gap: 10px; }
    .nav nav a:not(.btn) { display: none; }
    footer { flex-direction: column; gap: 10px; text-align: center; }
}