:root {
  --dm-night: #0a0f1c;
  --dm-reef: #13233e;
  --dm-foam: #e8fff9;
  --dm-lagoon: #5af0d2;
  --dm-spark: #ffb45d;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Karla", sans-serif;
  color: var(--dm-foam);
  background:
    radial-gradient(circle at 20% 18%, #173b68 0, transparent 32%),
    radial-gradient(circle at 78% 0%, #1f2750 0, transparent 29%),
    linear-gradient(180deg, #121f35, #090f1b 45%);
}
a { color: inherit; text-decoration: none; }
.dm-stage {
  width: min(1550px, 100%);
  margin: 0 auto;
  padding: 1rem clamp(1rem, 4vw, 2.8rem) 2.8rem;
}
.dm-head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
  border: 1px solid #2f4f7c;
  border-radius: 18px;
  padding: .65rem .9rem;
  background: rgba(8, 15, 31, .82);
  position: sticky;
  top: .7rem;
  z-index: 7;
}
.dm-logo img { height: 40px; display: block; }
.dm-slogan {
  font-size: .92rem;
  color: #b8d8ff;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.dm-burger {
  display: none;
  border: 1px solid #456a99;
  background: transparent;
  color: #dffbf2;
  border-radius: 8px;
  padding: .4rem .7rem;
  font-weight: 700;
}
.dm-nav {
  grid-column: 1 / -1;
  display: flex;
  gap: .55rem;
  flex-wrap: wrap;
}
.dm-nav a {
  border: 1px solid #2f4f7c;
  padding: .35rem .7rem;
  border-radius: 999px;
  font-size: .93rem;
}
.dm-nav a:hover,
.dm-nav a:focus-visible { border-color: var(--dm-lagoon); }
.dm-banner {
  margin-top: 1.2rem;
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 1rem;
}
.dm-core {
  background: linear-gradient(160deg, rgba(19,35,62,.9), rgba(15,24,44,.9));
  border: 1px solid #2f4f7c;
  border-radius: 26px;
  padding: 1.2rem;
}
.dm-core h1 {
  margin: 0;
  font-family: "Righteous", sans-serif;
  font-size: clamp(1.9rem, 4vw, 3.2rem);
  line-height: 1.05;
}
.dm-core p { margin: .8rem 0 0; }
.dm-alerts {
  margin-top: .9rem;
  display: grid;
  gap: .6rem;
}
.dm-alert {
  padding: .65rem .8rem;
  border-left: 4px solid var(--dm-spark);
  background: rgba(8, 14, 29, .7);
  border-radius: 8px;
}
.dm-rack {
  display: grid;
  gap: .85rem;
}
.dm-rack article {
  background: rgba(9, 17, 34, .8);
  border: 1px solid #315382;
  border-radius: 14px;
  padding: .9rem;
}
.dm-rack h3 {
  margin: 0 0 .3rem;
  color: var(--dm-lagoon);
  font-family: "Righteous", sans-serif;
  font-size: 1.05rem;
}
.dm-framebox {
  margin-top: 1rem;
  border: 1px solid #315382;
  border-radius: 20px;
  padding: .9rem;
  background: rgba(6, 11, 24, .92);
}
.dm-framebox h2 {
  margin: .1rem 0 .65rem;
  font-family: "Righteous", sans-serif;
  font-size: 1.35rem;
}
.dm-embed {
  width: 100%;
  min-height: 620px;
  border: 0;
  border-radius: 12px;
  background: #02050d;
}
.dm-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: .8rem;
}
.dm-panel {
  background: #111f39;
  border: 1px solid #2f4f7c;
  border-radius: 12px;
  padding: .85rem;
}
.dm-panel h4 {
  margin: 0 0 .4rem;
  font-size: 1rem;
  color: #9dd8ff;
}
.dm-footer {
  margin-top: 1.8rem;
  border-top: 1px solid #355b8c;
  padding-top: .85rem;
  display: grid;
  gap: .55rem;
  font-size: .93rem;
}
.dm-help { display: flex; flex-wrap: wrap; gap: .65rem; }
.dm-age {
  position: fixed;
  inset: 0;
  background: rgba(3, 8, 16, .86);
  display: grid;
  place-items: center;
  padding: 1rem;
  z-index: 20;
}
.dm-age[hidden] { display: none; }
.dm-card {
  width: min(560px, 100%);
  background: #13233e;
  border: 1px solid #406897;
  border-radius: 14px;
  padding: 1rem;
}
.dm-card h2 { margin-top: 0; font-family: "Righteous", sans-serif; }
.dm-actions { display: flex; gap: .65rem; flex-wrap: wrap; }
.dm-btn {
  border: 0;
  border-radius: 9px;
  padding: .6rem .95rem;
  font-weight: 700;
  cursor: pointer;
}
.dm-go { background: var(--dm-lagoon); color: #042c26; }
.dm-stop { background: #315382; color: #fff; }
@media (max-width: 980px) {
  .dm-banner { grid-template-columns: 1fr; }
  .dm-grid { grid-template-columns: 1fr; }
  .dm-embed { min-height: 500px; }
}
@media (max-width: 760px) {
  .dm-slogan { display: none; }
  .dm-burger { display: inline-flex; }
  .dm-nav {
    display: none;
    flex-direction: column;
    background: #122038;
    border: 1px solid #3c6594;
    border-radius: 12px;
    padding: .6rem;
  }
  .dm-nav[data-open="on"] { display: flex; }
  .dm-embed { min-height: 380px; }
}