:root {
  --dark: #121a2f;
  --blue: #3f89ff;
  --mint: #73e2c5;
  --amber: #ffc861;
  --text: #eef5ff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Asap", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 10%, rgba(63, 137, 255, 0.24), transparent 33%),
    radial-gradient(circle at 86% 8%, rgba(115, 226, 197, 0.2), transparent 30%),
    linear-gradient(180deg, #11192d, #0b1324 62%, #141e33);
}

.lith-header {
  width: min(1510px, 100%);
  margin: 0 auto;
  padding: 1rem 1rem 0.9rem;
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
}

.lith-logo {
  margin-right: auto;
  color: var(--text);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
}

.lith-logo img {
  width: 44px;
  height: 44px;
}

.lith-logo span {
  font-family: "Righteous", sans-serif;
  letter-spacing: 0.06em;
  font-size: clamp(1rem, 1.5vw, 1.3rem);
}

.lith-toggle {
  display: none;
  border: 1px solid #5aa2ff;
  background: rgba(63, 137, 255, 0.18);
  color: var(--text);
  border-radius: 8px;
  padding: 0.42rem 0.68rem;
}

.lith-nav {
  display: flex;
  gap: 0.55rem;
}

.lith-nav a {
  color: #e5f2ff;
  text-decoration: none;
  border: 1px solid #3f89ff;
  border-radius: 999px;
  padding: 0.45rem 0.72rem;
  font-weight: 600;
}

.lith-nav a:hover {
  background: var(--mint);
  color: #10223f;
  border-color: var(--mint);
}

.lith-main,
.lith-play-main,
.lith-doc {
  width: min(1510px, 100%);
  margin: 0 auto;
  padding: 0.3rem 1rem 2rem;
}

.lith-hero {
  display: grid;
  grid-template-columns: minmax(0, 2.1fr) minmax(260px, 1fr);
  gap: 1rem;
}

.lith-title,
.lith-pillars,
.lith-game,
.lith-panel,
.lith-play-head,
.lith-play-frame,
.lith-play-note,
.lith-doc {
  border: 1px solid #2f6ccd;
  border-radius: 14px;
  background: rgba(16, 28, 52, 0.84);
}

.lith-title,
.lith-pillars,
.lith-game,
.lith-panel,
.lith-play-head,
.lith-play-note,
.lith-doc {
  padding: 1rem;
}

.lith-tag {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--amber);
  font-weight: 700;
}

h1 {
  margin: 0.5rem 0;
  font-family: "Righteous", sans-serif;
  font-size: clamp(1.9rem, 4vw, 3.2rem);
  line-height: 1.08;
}

.lith-pillars {
  display: grid;
  gap: 0.6rem;
}

.lith-pillars b {
  border: 1px dashed var(--amber);
  border-radius: 10px;
  padding: 0.55rem 0.7rem;
  background: rgba(255, 200, 97, 0.15);
}

.lith-layout {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: minmax(0, 2.2fr) minmax(290px, 1fr);
  gap: 1rem;
}

h2 {
  margin-top: 0;
  font-family: "Righteous", sans-serif;
  color: #9dd9ff;
  font-size: 1.6rem;
}

.lith-game iframe,
.lith-play-frame iframe {
  width: 100%;
  min-height: 620px;
  display: block;
  border: 0;
  border-radius: 10px;
  background: #000;
}

.lith-panel ul {
  margin: 0.7rem 0 0;
  padding-left: 1.15rem;
  line-height: 1.6;
}

.lith-play-main {
  display: grid;
  gap: 1rem;
}

.lith-play-frame {
  padding: 0.8rem;
}

.lith-doc {
  max-width: 980px;
}

.lith-footer {
  width: min(1510px, 100%);
  margin: 0 auto;
  padding: 0.4rem 1rem 1.5rem;
  border-top: 1px solid #2b61b6;
}

.lith-footer div {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.lith-footer a {
  color: #ffda8a;
}

.lith-gate {
  position: fixed;
  inset: 0;
  display: none;
  place-items: center;
  background: rgba(6, 13, 25, 0.88);
  z-index: 90;
  padding: 1rem;
}

.lith-gate.open {
  display: grid;
}

.lith-box {
  width: min(420px, 100%);
  border: 1px solid #64a8ff;
  border-radius: 14px;
  background: #13284a;
  padding: 1rem;
}

.lith-controls {
  margin-top: 1rem;
  display: flex;
  gap: 0.6rem;
}

.lith-controls button {
  border: 0;
  border-radius: 8px;
  padding: 0.54rem 0.9rem;
  font-weight: 700;
  cursor: pointer;
}

#lithAccept {
  background: var(--mint);
  color: #13243f;
}

#lithDecline {
  background: #30436f;
  color: #fff;
}

@media (max-width: 900px) {
  .lith-toggle {
    display: inline-block;
  }

  .lith-nav {
    width: 100%;
    display: none;
    flex-direction: column;
    border: 1px solid #4d89e0;
    border-radius: 12px;
    background: #13284a;
    padding: 0.5rem;
  }

  .lith-nav.open {
    display: flex;
  }

  .lith-hero,
  .lith-layout {
    grid-template-columns: 1fr;
  }

  .lith-game iframe,
  .lith-play-frame iframe {
    min-height: 470px;
  }
}