@font-face {
  font-family: Archivo;
  src: url('/fonts/archivo-regular.ttf') format('truetype');
  font-weight: 400 600;
  font-display: swap;
}
@font-face {
  font-family: Archivo;
  src: url('/fonts/archivo-bold.ttf') format('truetype');
  font-weight: 700 900;
  font-display: swap;
}
:root {
  color-scheme: light;
  font-family: Archivo, Arial, sans-serif;
  color: #253b33;
  background: #f6f5ef;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  line-height: 1.8;
  font-size: 15px;
}
a {
  color: #254d3d;
  text-underline-offset: 4px;
}
a:hover {
  color: #835817;
}
nav {
  max-width: 1100px;
  margin: auto;
  padding: 24px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-bottom: 1px solid #d9dcd1;
}
nav .brand {
  font-size: 20px;
  font-weight: 700;
  text-decoration: none;
}
main {
  max-width: 800px;
  margin: 0 auto;
  padding: 55px 28px 70px;
}
h1 {
  font-size: clamp(32px, 5vw, 48px);
  letter-spacing: -0.035em;
  line-height: 1.15;
  margin: 0 0 24px;
}
h2 {
  font-size: 24px;
  letter-spacing: -0.02em;
  line-height: 1.4;
  margin: 42px 0 15px;
  font-weight: 600;
}
h3 {
  font-size: 18px;
  margin: 26px 0 10px;
}
p {
  margin: 0 0 18px;
  color: #596657;
}
.lead {
  font-size: 18px;
  line-height: 1.7;
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  margin: 25px 0;
}
th {
  text-align: left;
  background: #e7ebdf;
  padding: 13px;
  color: #253b33;
}
td {
  border-bottom: 1px solid #d9dcd1;
  padding: 12px;
  overflow-wrap: anywhere;
}
tr:hover td {
  background: #edf0e7;
}
.m,
.qcode {
  font-family: ui-monospace, monospace;
  letter-spacing: 1px;
  color: #254d3d;
  font-weight: 600;
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(85px, 1fr));
  gap: 1px;
  background: #d9dcd1;
  border: 1px solid #d9dcd1;
  margin: 25px 0;
}
.card {
  background: #f6f5ef;
  padding: 15px 8px;
  text-align: center;
}
.card .l {
  font-size: 25px;
  font-weight: 700;
  display: block;
}
.card .c {
  font-family: monospace;
  font-size: 14px;
  letter-spacing: 1px;
}
.box,
.method {
  padding: 24px;
  background: #e8ede0;
  border-radius: 8px;
  margin: 24px 0;
}
.box p:last-child,
.method p:last-child {
  margin-bottom: 0;
}
.method h3 {
  margin-top: 0;
}
.cta {
  margin-top: 48px;
  padding: 32px;
  background: #edce7b;
  border-radius: 10px;
}
.cta h2 {
  margin: 0 0 12px;
}
.cta p {
  color: #42523f;
}
.btn {
  display: inline-flex;
  background: #254d3d;
  color: #fffdf5;
  padding: 12px 20px;
  text-decoration: none;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
}
.btn:hover {
  background: #183c2d;
  color: #fffdf5;
}
.steps {
  padding-left: 23px;
}
.steps li {
  padding-left: 7px;
  margin-bottom: 16px;
}
.steps p {
  margin: 0;
}
.feat-grid,
.tools {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 30px;
}
.feat,
.tool {
  padding: 18px 0;
  border-bottom: 1px solid #d9dcd1;
}
.feat strong,
.tool strong {
  display: block;
  font-size: 14px;
}
.feat span,
.tool span {
  display: block;
  font-size: 13px;
  color: #596657;
}
.sos-display,
.sos {
  font-family: monospace;
  font-size: clamp(28px, 6vw, 48px);
  color: #254d3d;
  letter-spacing: 5px;
  padding: 20px 0;
}
footer {
  max-width: 1100px;
  margin: auto;
  padding: 25px 28px;
  border-top: 1px solid #d9dcd1;
  font-size: 11px;
}
footer p {
  margin: 0;
}
:focus-visible {
  outline: 3px solid #a66b1b;
  outline-offset: 4px;
}
::selection {
  background: #edce7b;
  color: #253b33;
}
@media (max-width: 600px) {
  nav {
    padding: 18px;
    gap: 15px;
  }
  nav .brand {
    font-size: 16px;
  }
  nav span {
    font-size: 10px !important;
  }
  main {
    padding: 32px 18px 45px;
  }
  .lead {
    font-size: 16px;
  }
  .feat-grid,
  .tools {
    grid-template-columns: 1fr;
  }
  td,
  th {
    padding: 9px 6px;
    font-size: 12px;
  }
  .cta,
  .box,
  .method {
    padding: 22px;
  }
  .m {
    letter-spacing: 0;
    word-break: break-word;
  }
  footer {
    padding: 24px 18px;
  }
}