:root {
  --bg-1: #04121d;
  --bg-2: #0a2f48;
  --bg-3: #0d8ea0;
  --panel: rgba(6, 28, 44, 0.74);
  --border: rgba(151, 215, 255, 0.34);
  --text: #e9f4ff;
  --text-soft: #b5d4e9;
  --accent: #56d9ff;
  --accent-2: #b5f783;
  --danger: #ff8d7e;
  --shadow: rgba(0, 0, 0, 0.35);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg-1: #e8f5ff;
    --bg-2: #d8ecff;
    --bg-3: #c4f5ff;
    --panel: rgba(255, 255, 255, 0.86);
    --border: rgba(32, 111, 156, 0.22);
    --text: #0f2536;
    --text-soft: #40627b;
    --accent: #008cc7;
    --accent-2: #6bbf2a;
    --danger: #cf3f35;
    --shadow: rgba(29, 70, 103, 0.18);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Sora", "Segoe UI", Tahoma, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 22%, rgba(86, 217, 255, 0.25), transparent 34%),
    radial-gradient(circle at 84% 84%, rgba(181, 247, 131, 0.22), transparent 31%),
    linear-gradient(145deg, var(--bg-1), var(--bg-2) 55%, var(--bg-3));
}

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: min(980px, 94vw);
  border-radius: 28px;
  border: 1px solid var(--border);
  background: var(--panel);
  box-shadow: 0 24px 80px var(--shadow);
  backdrop-filter: blur(8px);
  padding: clamp(24px, 4vw, 44px);
  animation: rise 700ms ease-out both;
}

.hero { text-align: center; }

.domain {
  margin: 0;
  font-size: clamp(1.8rem, 4.3vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.subtitle {
  margin: 12px 0 26px;
  color: var(--text-soft);
  font-size: clamp(1rem, 2.1vw, 1.2rem);
}

.error-code {
  margin: 0;
  font-size: clamp(2.6rem, 8vw, 6.2rem);
  line-height: 1;
  color: var(--danger);
  font-weight: 800;
}

.error-title {
  margin: 10px 0;
  font-size: clamp(1.4rem, 3vw, 2.2rem);
}

.lead {
  margin: 0 auto;
  max-width: 730px;
  color: var(--text-soft);
  font-size: clamp(1rem, 2vw, 1.16rem);
}

.actions {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.btn {
  display: inline-block;
  border: 1px solid rgba(86, 217, 255, 0.5);
  border-radius: 999px;
  padding: 10px 16px;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  background: linear-gradient(120deg, rgba(86, 217, 255, 0.18), rgba(181, 247, 131, 0.16));
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.25);
}

.hosting {
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid var(--border);
  text-align: center;
}

.hosting p {
  margin: 0 0 12px;
  color: var(--text-soft);
}

.logo-link { display: inline-block; }

.logo {
  width: min(160px, 42vw);
  height: auto;
  filter: drop-shadow(0 6px 14px rgba(0, 0, 0, 0.28));
  opacity: 0.95;
}

.ip {
  margin-top: 12px;
  font-size: 0.95rem;
  color: var(--text-soft);
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}