* {
  box-sizing: border-box;
}
body {
  margin: 0;
  min-height: 100vh;
  font-family: ui-sans-serif, system-ui, sans-serif;
  background: #f8fafc;
  color: #2d3441;
}
.page {
  max-width: 560px;
  margin: 0 auto;
  padding: 48px 24px;
}
header {
  text-align: center;
  margin-bottom: 32px;
}
.logo {
  width: 96px;
  height: 96px;
}
h1 {
  margin: 4px 0;
  font-size: 40px;
  letter-spacing: -0.02em;
}
header p {
  margin: 0;
  color: #64748b;
}
section {
  margin-top: 16px;
  padding: 20px 24px;
  background: white;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
}
h2 {
  margin: 0 0 12px;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #77c1d2;
}
.row {
  display: flex;
  align-items: center;
  gap: 16px;
}
.count {
  font-size: 24px;
  font-weight: 700;
}
button {
  font: inherit;
  font-weight: 600;
  padding: 8px 16px;
  border: 0;
  border-radius: 8px;
  background: #2d3441;
  color: white;
  cursor: pointer;
}
button:hover {
  background: #3c4557;
}
.panel {
  margin-top: 12px;
  padding: 12px 16px;
  border-radius: 8px;
  background: #e6f4f7;
}
input {
  width: 100%;
  font: inherit;
  padding: 8px 12px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
}
input:focus {
  outline: 2px solid #77c1d2;
  border-color: transparent;
}
ul {
  margin: 12px 0 0;
  padding-left: 20px;
}