:root {
  --bg-0: #010409;
  --bg-1: #0d1117;
  --border: #30363d;
  --fg-0: #e6edf3;
  --fg-2: #8b949e;
  --fg-3: #6e7681;
  --accent: #2f81f7;
  --green: #3fb950;
  --yellow: #d29922;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg-0);
  color: var(--fg-0);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.wrap { max-width: 640px; margin: 0 auto; padding: 72px 24px 0; flex: 1; }

.logo { display: flex; align-items: center; gap: 10px; font-weight: 600; margin-bottom: 48px; }
.logo small { color: var(--fg-3); font-weight: 400; }

h1 { font-size: 34px; line-height: 1.25; margin-bottom: 16px; }
body.about h1 { font-size: 30px; }

.tag { color: var(--fg-2); font-size: 17px; line-height: 1.6; margin-bottom: 40px; }

p { color: var(--fg-2); font-size: 15px; line-height: 1.6; margin-bottom: 16px; }
p.mission { color: var(--fg-0); font-size: 17px; }
.by-devs { font-style: italic; }

.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; }
.feature { background: var(--bg-1); border: 1px solid var(--border); border-radius: 10px; padding: 16px 18px; }
.feature b { display: block; margin-bottom: 6px; }
.feature span { color: var(--fg-2); font-size: 13px; line-height: 1.5; }

.signup { text-align: center; margin: 72px 0 52px; }

.cta {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  border-radius: 8px;
  padding: 13px 26px;
}
.cta:hover { filter: brightness(1.12); }
.cta-note { color: var(--fg-3); font-size: 12px; margin-bottom: 56px; }

h2 { font-size: 20px; margin-bottom: 20px; }
.pricing { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; margin-bottom: 8px; }
.card { background: var(--bg-1); border: 1px solid var(--border); border-radius: 12px; padding: 24px; }
.card .price { font-size: 30px; font-weight: 700; margin: 8px 0 14px; }
.card .price small { font-size: 14px; color: var(--fg-2); font-weight: 400; }
.card ul { list-style: none; color: var(--fg-2); font-size: 13px; display: grid; gap: 8px; }
.chip { display: inline-block; font-size: 10px; font-weight: 700; letter-spacing: 0.06em; border-radius: 4px; padding: 2px 7px; }
.chip.live { background: rgba(63, 185, 80, 0.15); color: var(--green); }
.chip.soon { background: rgba(210, 153, 34, 0.15); color: var(--yellow); }

.back { display: inline-block; margin-top: 24px; color: var(--accent); text-decoration: none; font-weight: 600; }
.back:hover { text-decoration: underline; }

footer {
  border-top: 1px solid var(--border);
  color: var(--fg-3);
  font-size: 12px;
  text-align: center;
  padding: 20px 16px;
}
footer a { color: var(--fg-2); text-decoration: none; }
footer a:hover { text-decoration: underline; }