:root { --ink: #16251d; --muted: #4c5f55; --bg: #fbfcfa; --card: #ffffff; --line: #d9e3dc; --accent: #166534; --accent-ink: #ffffff; --soft: #eaf4ed; }
@media (prefers-color-scheme: dark) { :root { --ink: #e8f0ea; --muted: #a9bbb0; --bg: #0f1a14; --card: #15251c; --line: #2a4033; --accent: #4ade80; --accent-ink: #0f1a14; --soft: #17301f; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
.wrap { max-width: 880px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 640px; }
.top { border-bottom: 1px solid var(--line); }
.brand { display: inline-block; padding: 16px 0; font-weight: 700; letter-spacing: .01em; color: var(--ink); text-decoration: none; }
h1 { font-weight: 700; font-size: clamp(1.7rem, 5vw, 2.4rem); line-height: 1.15; margin: 32px 0 12px; }
h2 { font-size: 1.2rem; margin: 28px 0 8px; }
.lead { font-size: 1.12rem; color: var(--muted); margin: 0 0 20px; }
ul.checks { padding: 0; margin: 0 0 24px; list-style: none; display: grid; gap: 8px; }
ul.checks li { background: var(--soft); border-radius: 10px; padding: 10px 14px 10px 40px; position: relative; }
ul.checks li::before { content: "✓"; position: absolute; left: 14px; color: var(--accent); font-weight: 700; }
form.signup { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 20px; margin: 8px 0 28px; }
label { display: block; font-weight: 600; margin-bottom: 6px; }
input[type=email] { width: 100%; font: inherit; padding: 12px 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg); color: var(--ink); }
input[type=email]:focus-visible, .btn:focus-visible, input[type=checkbox]:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.consent { display: flex; gap: 10px; align-items: flex-start; margin: 14px 0; font-size: .95rem; color: var(--muted); }
.consent input { margin-top: 5px; width: 18px; height: 18px; flex: none; }
.consent label { font-weight: 400; margin: 0; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.btn { display: inline-block; font: inherit; font-weight: 700; padding: 12px 22px; border: 0; border-radius: 10px; background: var(--accent); color: var(--accent-ink); cursor: pointer; text-decoration: none; }
.btn.ghost { background: transparent; color: var(--accent); border: 2px solid var(--accent); }
.small { font-size: .88rem; color: var(--muted); }
.note { border-left: 4px solid var(--accent); padding: 4px 0 4px 14px; color: var(--muted); font-size: .95rem; }
.foot { border-top: 1px solid var(--line); margin-top: 40px; padding: 16px 0 32px; font-size: .88rem; color: var(--muted); }
a { color: var(--accent); }
.skip { position: absolute; left: -9999px; } .skip:focus { left: 8px; top: 8px; background: var(--card); padding: 8px; }