@font-face {
  font-family: "Nunito";
  src: url("fonts/Nunito.ttf") format("truetype");
  font-weight: 200 1000;
  font-display: swap;
}

:root {
  --page: #ffffff;
  --border: #e5e5e5;
  --ink: #4b4b4b;
  --ink-soft: #6f6f6f;
  --green: #46a302;
  --green-edge: #357a01;
  --blue: #1593d4;
  --tint-green: rgba(70, 163, 2, 0.12);
  --tint-blue: rgba(21, 147, 212, 0.12);
  --tint-purple: rgba(155, 93, 229, 0.14);
  --tint-orange: rgba(255, 150, 0, 0.16);
  --radius: 18px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --page: #131f24;
    --border: #37464f;
    --ink: #f1f7fb;
    --ink-soft: #a5b4bc;
    --blue: #49c0f8;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font-family: "Nunito", ui-rounded, system-ui, -apple-system, sans-serif;
  font-weight: 600;
  font-size: 17px;
  line-height: 1.6;
}

a { color: var(--blue); font-weight: 800; text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 880px; margin: 0 auto; padding: 0 20px; }

header.site {
  border-bottom: 2px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--page);
  z-index: 1;
}

header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--green);
  font-size: 24px;
  font-weight: 900;
}

.brand img { width: 36px; height: 36px; border-radius: 9px; }
.brand:hover { text-decoration: none; }

nav.links { display: flex; flex-wrap: wrap; gap: 4px 18px; }
nav.links a { color: var(--ink-soft); font-size: 15px; text-transform: uppercase; letter-spacing: 0.06em; }
nav.links a[aria-current="page"] { color: var(--blue); }

main { padding: 40px 0 64px; }

h1, h2, h3 { color: var(--ink); line-height: 1.2; }
h1 { font-size: clamp(32px, 6vw, 48px); font-weight: 900; margin: 0 0 12px; }
h2 { font-size: 24px; font-weight: 900; margin: 40px 0 8px; }
h3 { font-size: 19px; font-weight: 800; margin: 24px 0 4px; }

p, li { color: var(--ink); }
.soft { color: var(--ink-soft); }

.card {
  border: 2px solid var(--border);
  border-bottom-width: 4px;
  border-radius: var(--radius);
  padding: 20px;
  background: var(--page);
}

.button {
  display: inline-block;
  background: var(--green);
  color: #ffffff;
  border-radius: 16px;
  box-shadow: 0 4px 0 var(--green-edge);
  padding: 14px 26px;
  font-weight: 900;
  font-size: 16px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.button:hover { text-decoration: none; filter: brightness(1.05); }
.button:active { transform: translateY(4px); box-shadow: none; }

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 32px;
  align-items: center;
}

.hero .icon { width: 96px; height: 96px; border-radius: 22px; margin-bottom: 16px; }
.hero .lead { font-size: 20px; color: var(--ink-soft); margin: 0 0 24px; }
.hero .status { margin-top: 14px; font-size: 14px; color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.06em; font-weight: 800; }

.phone {
  width: 100%;
  max-width: 300px;
  justify-self: center;
  border: 2px solid var(--border);
  border-bottom-width: 4px;
  border-radius: 34px;
  padding: 8px;
  background: var(--page);
}

.phone img { width: 100%; display: block; border-radius: 26px; }

.features {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 48px;
}

.feature h3 { margin-top: 0; }
.feature p { margin: 0; color: var(--ink-soft); }
.feature .dot { width: 44px; height: 44px; border-radius: 14px; margin-bottom: 12px; display: grid; place-items: center; font-weight: 900; font-size: 20px; }
.dot.green { background: var(--tint-green); color: var(--green); }
.dot.blue { background: var(--tint-blue); color: var(--blue); }
.dot.purple { background: var(--tint-purple); color: #9b5de5; }
.dot.orange { background: var(--tint-orange); color: #d97f00; }

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.gallery figure { margin: 0; }
.gallery img { width: 100%; border: 2px solid var(--border); border-radius: 22px; display: block; }
.gallery figcaption { text-align: center; color: var(--ink-soft); font-size: 14px; margin-top: 8px; }

.doc { max-width: 720px; }
.doc .updated { color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.06em; font-size: 14px; font-weight: 800; }
.doc ul { padding-left: 22px; }
.doc li { margin: 6px 0; }

.summary { margin: 24px 0 8px; }
.summary ul { margin: 0; }

details.faq {
  border: 2px solid var(--border);
  border-bottom-width: 4px;
  border-radius: var(--radius);
  padding: 14px 18px;
  margin: 12px 0;
}

details.faq summary { cursor: pointer; font-weight: 900; font-size: 18px; list-style: none; }
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after { content: "+"; float: right; color: var(--ink-soft); }
details.faq[open] summary::after { content: "–"; }
details.faq p { margin: 10px 0 0; }

footer.site { border-top: 2px solid var(--border); padding: 24px 0 40px; color: var(--ink-soft); font-size: 15px; }
footer.site .wrap { display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between; }
footer.site nav { display: flex; flex-wrap: wrap; gap: 6px 18px; }

@media (max-width: 720px) {
  header.site .wrap { flex-direction: column; align-items: flex-start; gap: 6px; padding-top: 10px; padding-bottom: 10px; }
  .features { grid-template-columns: 1fr; }
  .hero { grid-template-columns: 1fr; }
  .phone { max-width: 260px; }
  main { padding-top: 28px; }
}