:root {
    --ink: #1b2430;
    --muted: #5c6570;
    --paper: #f6f4ef;
    --rule: #d8d3c8;
    --link: #1f6f6a;
    --accent: #c46a2b;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: Inter, system-ui, sans-serif;
    background: var(--paper);
    color: var(--ink);
    line-height: 1.55;
    font-size: 18px;
}
main {
    max-width: 38rem;
    margin: 0 auto;
    padding: 4.5rem 1.5rem 3rem;
}
.mark {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 2.75rem;
    text-decoration: none;
    color: inherit;
}
.mark svg { width: 36px; height: 36px; }
.mark span {
    font-weight: 650;
    letter-spacing: -0.02em;
    font-size: 1.05rem;
}
h1 {
    font-size: 1.85rem;
    line-height: 1.25;
    letter-spacing: -0.03em;
    font-weight: 650;
    margin: 0 0 1.25rem;
}
h2 {
    font-size: 1.05rem;
    letter-spacing: -0.01em;
    font-weight: 650;
    margin: 2.5rem 0 0.75rem;
}
h3 {
    font-size: 1rem;
    font-weight: 600;
    margin: 1.5rem 0 0.5rem;
}
p { margin: 0 0 1.1rem; }
ul, ol { margin: 0 0 1.1rem; padding-left: 1.25rem; }
li { margin-bottom: 0.4rem; }
.lead { font-weight: 650; }
.muted { color: var(--muted); }
.small { font-size: 0.9rem; }
.price {
    margin: 1.75rem 0;
    padding: 1rem 0;
    border-top: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
}
a { color: var(--link); }
.cta {
    display: inline-block;
    margin-top: 0.35rem;
    font-weight: 600;
}
.button {
    display: inline-block;
    padding: 0.8rem 1.4rem;
    background: var(--ink);
    color: var(--paper);
    border-radius: 6px;
    font-weight: 600;
    text-decoration: none;
}
.button:hover { background: var(--link); }
.steps { list-style: none; padding: 0; counter-reset: step; }
.steps li {
    counter-increment: step;
    position: relative;
    padding-left: 2.25rem;
    margin-bottom: 0.9rem;
}
.steps li::before {
    content: counter(step);
    position: absolute;
    left: 0;
    top: 0.1rem;
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 50%;
    border: 1px solid var(--rule);
    font-size: 0.8rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--muted);
}
.proof {
    margin: 1.5rem 0;
    padding: 0.25rem 0 0.25rem 1.1rem;
    border-left: 3px solid var(--accent);
}
.legal { font-size: 0.95rem; }
.legal h1 { margin-bottom: 0.4rem; }
footer {
    margin-top: 3.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--rule);
    font-size: 0.85rem;
    color: var(--muted);
}
footer a { color: var(--muted); }
@media (max-width: 40rem) {
    main { padding-top: 3rem; }
    h1 { font-size: 1.55rem; }
    body { font-size: 17px; }
}
.person { display: flex; gap: 1.1rem; align-items: flex-start; }
.person img { width: 96px; height: 96px; border-radius: 50%; object-fit: cover; flex-shrink: 0; }
.person p { margin: 0; }
.brief h1 { font-size: 2.1rem; }
.from { display: flex; align-items: center; gap: 0.8rem; margin: -1rem 0 1.75rem; }
.from img { width: 56px; height: 56px; border-radius: 50%; object-fit: cover; }
.from p { margin: 0; line-height: 1.35; }
.symptoms {
    margin: 1.5rem 0;
    padding: 1.1rem 1.25rem 0.4rem;
    background: #fff;
    border: 1px solid var(--rule);
    border-radius: 8px;
}
.symptoms p { margin-bottom: 0.5rem; }
.cta-block { margin: 1.75rem 0 0.5rem; }
.cta-block p { margin-top: 0.75rem; }
.sample {
    margin: 1.5rem 0;
    padding: 1rem 1.25rem 0.3rem;
    background: #fff;
    border: 1px solid var(--rule);
    border-radius: 8px;
    font-size: 0.95rem;
}
.sample-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--muted);
    margin-bottom: 0.75rem;
}
.tag {
    display: inline-block;
    min-width: 4.6rem;
    margin-right: 0.4rem;
    padding: 0.05rem 0.45rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 650;
    text-align: center;
}
.tag.stop { background: #f6e3d6; color: #8a3f12; }
.tag.start { background: #d9ece9; color: #17544f; }
.tag.cont { background: #e7e5df; color: #3d4550; }
.brief .price p:last-child { margin-bottom: 0; }
@media (max-width: 40rem) { .brief h1 { font-size: 1.7rem; } }