:root {
  --bg: #f4f7ff;
  --surface: #ffffff;
  --surface-soft: #f8fbff;
  --text: #0b1938;
  --muted: #4f638a;
  --line: rgba(15, 40, 82, 0.16);
  --accent: #0052cc;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Plus Jakarta Sans", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 85% -10%, rgba(11, 125, 255, 0.12), transparent 32%),
    linear-gradient(180deg, #f8fbff 0%, var(--bg) 100%);
  line-height: 1.65;
}

.wrap {
  width: min(980px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1rem 0 2.2rem;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  border: 1px solid var(--line);
  border-radius: 16px;
  margin-top: 0.8rem;
  padding: 0.7rem 0.9rem;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
}

.topbar a {
  color: var(--accent);
  font-weight: 700;
  text-decoration: none;
}

.topbar a:hover,
.topbar a:focus-visible {
  text-decoration: underline;
  outline: none;
}

.card {
  margin-top: 0.9rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.3rem;
  background: var(--surface);
  box-shadow: 0 14px 36px rgba(10, 30, 72, 0.08);
}

h1,
h2,
h3 {
  margin: 0;
  font-family: "Syne", "Verdana", sans-serif;
  line-height: 1.2;
}

h1 {
  font-size: clamp(1.7rem, 4.2vw, 2.4rem);
}

h2 {
  margin-top: 1.25rem;
  font-size: clamp(1.2rem, 2.8vw, 1.5rem);
}

h3 {
  margin-top: 0.95rem;
  font-size: 1rem;
}

p,
li {
  color: var(--text);
}

p {
  margin: 0.55rem 0 0;
}

ul {
  margin: 0.55rem 0 0;
  padding-left: 1.1rem;
}

.meta {
  margin-top: 0.55rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.contact-box {
  margin-top: 1rem;
  border: 1px dashed rgba(15, 40, 82, 0.24);
  border-radius: 12px;
  padding: 0.8rem;
  background: #fcfdff;
}

.contact-box p {
  margin-top: 0.25rem;
}

a {
  color: var(--accent);
}

@media (max-width: 760px) {
  .card {
    padding: 1rem;
    border-radius: 14px;
  }

  .topbar {
    border-radius: 12px;
  }
}