:root {
  --bg0: #0c1210;
  --bg1: #14201a;
  --ink: #e8f0ea;
  --muted: #8fa396;
  --accent: #3dba7a;
  --down: #e85d4c;
  --glass: rgba(232, 240, 234, 0.06);
  --line: rgba(232, 240, 234, 0.12);
  --font: "DM Sans", system-ui, sans-serif;
  --display: "Instrument Serif", Georgia, serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 70% -10%, rgba(61, 186, 122, 0.18), transparent 55%),
    radial-gradient(900px 500px at -10% 80%, rgba(40, 90, 70, 0.35), transparent 50%),
    linear-gradient(165deg, var(--bg0), var(--bg1) 55%, #0a100e);
  line-height: 1.45;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.hero-page, .page {
  width: min(920px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2.5rem 0 3rem;
  position: relative;
}

.atmosphere {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(232,240,234,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(232,240,234,0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at 50% 20%, #000 20%, transparent 70%);
  opacity: 0.5;
}

.brand-mark {
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.75rem;
}

.hero h1, .page h1 {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(2.8rem, 8vw, 4.6rem);
  margin: 0 0 0.4rem;
  letter-spacing: -0.02em;
}

.tagline, .lead {
  color: var(--muted);
  font-size: 1.1rem;
  margin: 0 0 1.5rem;
  max-width: 28rem;
}

.check-form {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin: 0 0 0.75rem;
}

.check-form input {
  flex: 1 1 220px;
  min-width: 0;
  padding: 0.95rem 1.1rem;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--glass);
  color: var(--ink);
  font: inherit;
  backdrop-filter: blur(12px);
}

.check-form button, .btn {
  padding: 0.95rem 1.35rem;
  border-radius: 14px;
  border: 0;
  background: var(--accent);
  color: #06140c;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.check-form button:hover, .btn:hover { filter: brightness(1.08); }

.byline {
  margin: 0 0 1.5rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.result {
  margin: 1rem 0 1.5rem;
  padding: 1.1rem 1.25rem;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: var(--glass);
  backdrop-filter: blur(14px);
  animation: fadeUp 0.45s ease both;
}

.result.hidden { display: none; }
.result.up .status-label { color: var(--accent); }
.result.down .status-label { color: var(--down); }
.status-label {
  font-family: var(--display);
  font-size: 2rem;
  margin: 0 0 0.35rem;
}
.meta, .muted, .micro, .empty-hint {
  color: var(--muted);
  font-size: 0.92rem;
  margin: 0.25rem 0;
}
.probe-chip {
  display: inline-block;
  margin: 0.55rem 0 0.2rem;
  font-size: 0.85rem;
  color: var(--ink);
  opacity: 0.85;
}
.micro { font-size: 0.78rem; opacity: 0.75; margin-top: 1rem; }

.status-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.65rem;
  margin: 0.5rem 0 0.75rem;
}

.status-pill {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.7rem 0.8rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  font: inherit;
  cursor: pointer;
  text-align: left;
  transition: border-color 0.2s, background 0.2s;
}
.status-pill:hover { background: var(--glass); }
.status-pill .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--muted);
  flex: 0 0 auto;
}
.status-pill.is-up .dot { background: var(--accent); }
.status-pill.is-down .dot { background: var(--down); }
.status-pill .lbl { flex: 1; font-size: 0.92rem; }
.status-pill .st { font-size: 0.75rem; color: var(--muted); }

.pulse {
  animation: pulse 1.8s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 0.45; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.25); }
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.reveal { animation: fadeUp 0.45s ease both; }

.tool-links {
  margin: 1.75rem 0 0.5rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.site-foot {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}
.site-foot p { margin: 0.25rem 0; }

.ip-big {
  font-family: var(--display);
  font-size: clamp(2rem, 6vw, 3.2rem);
  margin: 0.5rem 0 1rem;
}
.dns-list { list-style: none; padding: 0; margin: 1rem 0; }
.dns-list li {
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--line);
  font-family: ui-monospace, monospace;
  font-size: 0.9rem;
}
.dns-list span { color: var(--accent); margin-right: 0.6rem; }
.brand { margin: 0 0 1rem; color: var(--muted); }
.back { margin-top: 1.5rem; }
.cta-one { margin: 1.5rem 0; }
.btn { display: inline-block; }

@media (max-width: 560px) {
  .hero-page, .page { padding-top: 1.75rem; }
  .check-form button { width: 100%; }
}