:root {
  --bg: #05070f;
  --card: rgba(255, 255, 255, 0.08);
  --stroke: rgba(255, 255, 255, 0.25);
  --text: #f7f8ff;
  --muted: #b5bdd7;
  --glow: #74f3ff;
  --radius: 20px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  font-family: Inter, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2.5rem 1.2rem;
  position: relative;
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: -35vmax;
  z-index: -2;
  background:
    radial-gradient(circle at 20% 30%, rgba(111, 118, 255, 0.45), transparent 40%),
    radial-gradient(circle at 80% 25%, rgba(0, 242, 255, 0.38), transparent 36%),
    radial-gradient(circle at 50% 80%, rgba(255, 64, 154, 0.32), transparent 44%);
  filter: blur(30px);
  animation: drift 18s ease-in-out infinite alternate;
}

body::after {
  animation-duration: 28s;
  animation-direction: alternate-reverse;
  opacity: 0.65;
}

@keyframes drift {
  0% {
    transform: translate3d(-2%, -1%, 0) scale(1);
  }
  100% {
    transform: translate3d(3%, 2%, 0) scale(1.06);
  }
}

.container {
  width: min(1100px, 100%);
  border: 1px solid rgba(255, 255, 255, 0.17);
  border-radius: 28px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.03));
  backdrop-filter: blur(18px);
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.45);
  padding: clamp(1.5rem, 2vw, 2.4rem);
}

.header {
  margin-bottom: 1.8rem;
}

.title {
  font-size: clamp(2rem, 3.7vw, 3.1rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  text-shadow: 0 0 25px rgba(116, 243, 255, 0.3);
}

.subtitle {
  margin-top: 0.5rem;
  color: var(--muted);
  max-width: 70ch;
  font-size: clamp(0.95rem, 1.5vw, 1.05rem);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 200px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--stroke);
  padding: 1rem;
  text-decoration: none;
  color: inherit;
  transform-style: preserve-3d;
  transition: transform 240ms ease, box-shadow 240ms ease, border-color 240ms ease;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: -90% -20% auto;
  height: 80%;
  background: linear-gradient(130deg, rgba(255, 255, 255, 0.35), transparent 60%);
  transform: translateY(-25%) rotate(4deg);
  transition: transform 260ms ease;
  pointer-events: none;
}

.card:hover,
.card:focus-visible {
  transform: rotateX(6deg) rotateY(-6deg) translateY(-3px);
  box-shadow: 0 26px 52px rgba(0, 0, 0, 0.35), 0 0 35px rgba(116, 243, 255, 0.22);
  border-color: rgba(116, 243, 255, 0.55);
  outline: none;
}

.card:hover::before,
.card:focus-visible::before {
  transform: translateY(-10%) rotate(8deg);
}

.card__chip {
  width: fit-content;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--glow);
  border: 1px solid rgba(116, 243, 255, 0.45);
  border-radius: 999px;
  padding: 0.25rem 0.55rem;
  backdrop-filter: blur(4px);
}

.card__title {
  margin-top: 2.2rem;
  font-size: 1.35rem;
  font-weight: 700;
}

.card__description {
  margin-top: 0.45rem;
  color: #d7ddf8;
  line-height: 1.35;
  font-size: 0.95rem;
}

.card__cta {
  margin-top: 1.4rem;
  font-size: 0.9rem;
  color: #e8ecff;
  opacity: 0.9;
}

.status-page .container {
  width: min(720px, 100%);
}

.status-code {
  color: var(--glow);
  font-size: clamp(2.8rem, 8vw, 5.2rem);
  line-height: 1;
  letter-spacing: 0.04em;
}

.status-message {
  margin-top: 1.2rem;
  font-size: 1.04rem;
  color: #dbe2ff;
  line-height: 1.5;
}

.status-actions {
  margin-top: 1.8rem;
}

.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: 999px;
  border: 1px solid rgba(116, 243, 255, 0.45);
  background: rgba(116, 243, 255, 0.14);
  color: #f6fcff;
  font-weight: 600;
  text-decoration: none;
  padding: 0.6rem 1.1rem;
  transition: background-color 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.button-link:hover {
  background: rgba(116, 243, 255, 0.24);
  border-color: rgba(116, 243, 255, 0.85);
  transform: translateY(-1px);
}

.button-link:focus-visible {
  outline: 2px solid #ffffff;
  outline-offset: 3px;
}