@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg: #050a12;
  --text: #e2e8f0;
  --text-dim: #94a3b8;
  --text-faint: #475569;
  --blue: #3b82f6;
  --blue-dim: rgba(59, 130, 246, 0.12);
  --blue-glow: rgba(59, 130, 246, 0.25);
  --card-bg: rgba(10, 18, 36, 0.55);
  --card-border: rgba(59, 130, 246, 0.1);
}

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

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  overflow: hidden;
}

/* Soft ambient glow — pure CSS */
body::before {
  content: '';
  position: fixed;
  width: 800px;
  height: 800px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59,130,246,0.07) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  animation: breathe 8s ease-in-out infinite;
}

@keyframes breathe {
  0%, 100% { opacity: 0.6; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 1; transform: translate(-50%, -50%) scale(1.15); }
}

/* ---- Layout ---- */
.page {
  position: relative;
  z-index: 1;
  width: 90%;
  max-width: 520px;
  text-align: center;
}

/* ---- Error Code (subtle, bottom-right of card) ---- */
.err-code {
  position: absolute;
  bottom: 10px;
  right: 14px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.55rem;
  font-weight: 500;
  color: rgba(148, 163, 184, 0.18);
  letter-spacing: 1px;
  pointer-events: none;
  user-select: none;
}

/* ---- Card ---- */
.card {
  background: var(--card-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 2.25rem 2rem 2rem;
  position: relative;
  overflow: hidden;
  opacity: 0;
  transform: translateY(16px);
  animation: slideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.05s forwards;
}

.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(59,130,246,0.25), transparent);
}

@keyframes slideUp {
  to { opacity: 1; transform: translateY(0); }
}

/* ---- Brand ---- */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 1.25rem;
}

.brand-icon {
  width: 24px;
  height: 24px;
  border-radius: 5px;
  background: linear-gradient(135deg, var(--blue), #1d4ed8);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.65rem;
  color: white;
  box-shadow: 0 0 10px var(--blue-glow);
}

.brand span {
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--text-dim);
}

/* ---- Status pill ---- */
.status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.75rem;
  background: rgba(15, 23, 42, 0.4);
  border: 1px solid rgba(255,255,255,0.04);
  border-radius: 100px;
  font-size: 0.6rem;
  font-weight: 500;
  color: var(--text-faint);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  animation: pulse 2s infinite;
}
.dot.green { background: #22c55e; box-shadow: 0 0 6px rgba(34,197,94,0.5); }
.dot.amber { background: #f59e0b; box-shadow: 0 0 6px rgba(245,158,11,0.5); }
.dot.red   { background: #ef4444; box-shadow: 0 0 6px rgba(239,68,68,0.5); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* ---- Typography ---- */
h1 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
  line-height: 1.3;
}

.desc {
  font-size: 0.875rem;
  color: var(--text-dim);
  line-height: 1.65;
  margin-bottom: 1.75rem;
}

/* ---- Buttons ---- */
.actions {
  display: flex;
  gap: 0.6rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.65rem 1.35rem;
  font-family: 'Inter', sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--blue), #1d4ed8);
  box-shadow: 0 0 14px var(--blue-glow);
}
.btn-primary:hover {
  box-shadow: 0 0 28px var(--blue-glow);
  transform: translateY(-1px);
}

.btn-ghost {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.07);
  transform: translateY(-1px);
}

/* ---- Dev meta ---- */
.meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.5rem;
  color: rgba(148,163,184,0.15);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-top: 1.25rem;
  user-select: all;
}

/* ---- Responsive ---- */
@media (max-width: 480px) {
  .card { padding: 1.75rem 1.25rem 1.5rem; border-radius: 14px; }
  .actions { flex-direction: column; }
  .btn { justify-content: center; }
}