:root {
  --bg: #07080a;
  --panel: rgba(16, 18, 22, 0.92);
  --line: rgba(0, 229, 255, 0.28);
  --cyan: #00e5ff;
  --red: #ff2a2a;
  --silver: #d8dce3;
  --muted: #8b939e;
  --glow-red: rgba(255, 42, 42, 0.35);
  --glow-cyan: rgba(0, 229, 255, 0.22);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--silver);
  font-family: "Roboto Condensed", "Arial Narrow", sans-serif;
}

body {
  min-height: 100vh;
  background:
    radial-gradient(ellipse 70% 42% at 50% -8%, rgba(255, 42, 42, 0.16), transparent 58%),
    radial-gradient(ellipse 50% 30% at 50% 8%, rgba(0, 229, 255, 0.07), transparent 55%),
    linear-gradient(180deg, #0b0d11 0%, #07080a 38%, #050607 100%);
}

.stage {
  max-width: 80%;
  margin: 0 auto;
  padding: 1.75rem 1.25rem 3rem;
}

.mast {
  position: relative;
  text-align: center;
  padding: 0.5rem 0 1.35rem;
}

.mast::after {
  content: "";
  display: block;
  width: min(72%, 640px);
  height: 1px;
  margin: 1.15rem auto 0;
  background: linear-gradient(90deg, transparent, var(--red), var(--cyan), transparent);
  opacity: 0.7;
}

.logo {
  display: block;
  width: min(72%, 620px);
  height: auto;
  margin: 0 auto;
  filter:
    drop-shadow(0 0 18px rgba(255, 42, 42, 0.28))
    drop-shadow(0 0 28px rgba(0, 229, 255, 0.12));
}

.lang {
  display: inline-flex;
  align-items: center;
  gap: 0;
  margin-top: 1.05rem;
  border: 1px solid rgba(0, 229, 255, 0.28);
  border-radius: 999px;
  background: rgba(8, 10, 14, 0.75);
  overflow: hidden;
  box-shadow: 0 0 18px rgba(0, 229, 255, 0.08);
}

.lang button {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-family: Rajdhani, "Roboto Condensed", sans-serif;
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: 0.18em;
  padding: 0.42rem 0.95rem;
  cursor: pointer;
  transition: color .2s, background .2s, text-shadow .2s;
}

.lang button + button {
  border-left: 1px solid rgba(0, 229, 255, 0.22);
}

.lang button:hover {
  color: var(--cyan);
}

.lang button[aria-pressed="true"] {
  color: #081014;
  background: linear-gradient(180deg, #7af3ff 0%, var(--cyan) 100%);
  text-shadow: none;
}

.nav-wrap {
  position: relative;
  margin: 0.15rem 0 1.5rem;
  padding: 1px;
  border-radius: 14px;
  background: linear-gradient(90deg, rgba(255, 42, 42, 0.55), rgba(0, 229, 255, 0.45) 50%, rgba(255, 42, 42, 0.35));
  box-shadow:
    0 0 24px var(--glow-red),
    0 0 18px var(--glow-cyan),
    inset 0 0 0 1px rgba(0, 0, 0, 0.35);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: stretch;
  gap: 0;
  border-radius: 13px;
  background:
    linear-gradient(180deg, rgba(28, 32, 38, 0.96) 0%, rgba(12, 14, 18, 0.98) 100%);
  overflow: hidden;
}

nav a {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 3.15rem;
  padding: 0.7rem 0.55rem;
  color: var(--silver);
  text-decoration: none;
  font-family: Rajdhani, "Roboto Condensed", sans-serif;
  font-weight: 600;
  font-size: clamp(0.82rem, 1.7vw, 1.08rem);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: color .18s, background .18s, text-shadow .18s;
}

nav a + a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22%;
  bottom: 22%;
  width: 1px;
  background: linear-gradient(180deg, transparent, rgba(0, 229, 255, 0.35), transparent);
}

nav a::after {
  content: "";
  position: absolute;
  left: 18%;
  right: 18%;
  bottom: 0;
  height: 2px;
  background: var(--cyan);
  transform: scaleX(0);
  box-shadow: 0 0 10px var(--cyan);
  transition: transform .18s ease;
}

nav a:hover {
  color: var(--cyan);
  background: rgba(0, 229, 255, 0.06);
  text-shadow: 0 0 12px rgba(0, 229, 255, 0.35);
}

nav a:hover::after,
nav a[aria-current="page"]::after {
  transform: scaleX(1);
}

nav a[aria-current="page"] {
  color: #fff;
  background: linear-gradient(180deg, rgba(255, 42, 42, 0.16), rgba(255, 42, 42, 0.04));
  text-shadow: 0 0 14px var(--glow-red);
}

nav a[aria-current="page"]::after {
  background: var(--red);
  box-shadow: 0 0 12px var(--red);
}

#main {
  background: var(--panel);
  border: 1px solid rgba(0, 229, 255, 0.14);
  border-radius: 14px;
  min-height: 12rem;
  padding: 1.5rem;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}

.page h1 {
  margin: 0 0 1.15rem;
  font-family: Rajdhani, "Roboto Condensed", sans-serif;
  font-weight: 700;
  font-size: clamp(1.55rem, 3vw, 2.15rem);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #fff;
  text-shadow: 0 0 16px var(--glow-red);
}

#page-body img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 8px;
}

#page-body h2 {
  margin: 1.4rem 0 0.55rem;
  font-family: Rajdhani, "Roboto Condensed", sans-serif;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan);
}

#page-body p,
#page-body li {
  line-height: 1.55;
  color: var(--silver);
}

#page-body a {
  color: var(--cyan);
}

@media (max-width: 720px) {
  .stage { padding: 1.1rem 0.75rem 2rem; }
  .logo { width: min(92%, 620px); }
  nav { flex-wrap: wrap; }
  nav a {
    flex: 1 1 33.33%;
    min-height: 2.7rem;
    letter-spacing: 0.08em;
  }
  nav a + a::before { display: none; }
  #main { padding: 1.1rem; }
}