:root {
  --bg: #0d1321;
  --surface: #161d2e;
  --surface-2: #1d2740;
  --border: #2a3348;
  --border-soft: #232c42;
  --text: #e8eaf0;
  --text-muted: #8b94ac;
  --text-faint: #5c6580;

  --accent: #e8a24c;
  --accent-dim: #b97f35;
  --success: #5fbf8f;
  --alert: #e2665a;
  --info: #6fa8dc;

  --font-mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --font-sans: 'IBM Plex Sans', system-ui, -apple-system, sans-serif;

  --radius: 8px;
  --radius-sm: 5px;
  --wrap: 1120px;
}

* { box-sizing: border-box; }

html { color-scheme: dark; }

body {
  margin: 0;
  background: var(--bg);
  background-image:
    radial-gradient(ellipse 900px 500px at 15% -10%, rgba(232, 162, 76, 0.08), transparent),
    radial-gradient(ellipse 700px 500px at 100% 10%, rgba(111, 168, 220, 0.06), transparent);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

a { color: inherit; }

h1, h2, h3 { font-family: var(--font-sans); margin: 0; letter-spacing: -0.01em; }

button, input, select { font-family: inherit; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ---------- Header ---------- */

.site-header {
  border-bottom: 1px solid var(--border-soft);
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.wordmark {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  color: var(--text);
}

.wordmark-mark {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(232, 162, 76, 0.18);
}

.header-nav {
  display: flex;
  gap: 24px;
  font-size: 14px;
}

.header-nav a {
  color: var(--text-muted);
  text-decoration: none;
}

.header-nav a:hover { color: var(--text); }

/* ---------- Hero ---------- */

.hero {
  padding: 72px 24px 40px;
  text-align: center;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 16px;
}

.hero h1 {
  font-size: clamp(28px, 4.4vw, 44px);
  font-weight: 700;
  max-width: 720px;
  margin: 0 auto;
}

.hero-sub {
  color: var(--text-muted);
  font-size: 16px;
  max-width: 520px;
  margin: 16px auto 36px;
}

#resolver-count { color: var(--text); font-family: var(--font-mono); }

.query-bar {
  display: flex;
  align-items: stretch;
  max-width: 620px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.15s ease;
}

.query-bar:focus-within {
  border-color: var(--accent-dim);
}

.query-prompt {
  font-family: var(--font-mono);
  color: var(--text-faint);
  display: flex;
  align-items: center;
  padding: 0 0 0 18px;
  font-size: 15px;
  user-select: none;
}

.query-bar input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 15px;
  padding: 16px 10px;
}

.query-bar input::placeholder { color: var(--text-faint); }
.query-bar input:focus { outline: none; }

.query-bar select {
  background: var(--surface-2);
  border: none;
  border-left: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 0 14px;
  cursor: pointer;
}

.query-bar select:focus-visible { outline-offset: -2px; }

.query-bar button {
  display: flex;
  align-items: center;
  gap: 8px;
  border: none;
  background: var(--accent);
  color: #1a1305;
  font-weight: 600;
  font-size: 14px;
  padding: 0 22px;
  cursor: pointer;
  transition: background 0.15s ease;
}

.query-bar button:hover { background: #f0ad5e; }
.query-bar button:disabled { opacity: 0.6; cursor: progress; }

.btn-arrow { transition: transform 0.15s ease; }
.query-bar button:hover .btn-arrow { transform: translateX(2px); }

.form-error {
  max-width: 620px;
  margin: 14px auto 0;
  color: var(--alert);
  font-size: 13.5px;
  text-align: center;
}

/* ---------- Ad slots ---------- */

.ad-slot {
  margin: 36px auto;
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.015);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-faint);
}

.ad-slot-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.ad-leaderboard, .ad-footer { min-height: 90px; max-width: 728px; }
.ad-rectangle { min-height: 200px; max-width: 336px; }

/* ---------- Empty state ---------- */

.empty-state {
  padding: 40px 24px 60px;
  text-align: center;
}

.empty-state p {
  color: var(--text-faint);
  font-size: 14.5px;
}

/* ---------- Results ---------- */

.results {
  padding: 8px 24px 24px;
}

.results-summary {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  padding: 16px 20px;
  margin-bottom: 24px;
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  font-size: 14px;
}

.summary-domain {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text);
}

.summary-count { color: var(--text-muted); }
.summary-count strong { color: var(--success); font-family: var(--font-mono); }

.resolver-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 14px;
}

.resolver-card {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 16px 18px;
  position: relative;
  overflow: hidden;
}

.card-top {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 10px;
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--text-faint);
}

.status-dot.pending {
  background: var(--accent);
  animation: pulse-ring 1.1s ease-out infinite;
}

.status-dot.ok { background: var(--success); }
.status-dot.empty { background: var(--info); }
.status-dot.nxdomain { background: var(--text-faint); }
.status-dot.timeout, .status-dot.error { background: var(--alert); }

@keyframes pulse-ring {
  0% { box-shadow: 0 0 0 0 rgba(232, 162, 76, 0.45); }
  100% { box-shadow: 0 0 0 9px rgba(232, 162, 76, 0); }
}

.resolver-name {
  font-weight: 600;
  font-size: 14px;
}

.resolver-location {
  font-size: 12px;
  color: var(--text-faint);
  margin: 0 0 12px;
}

.record-value {
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--text);
  word-break: break-all;
  line-height: 1.5;
}

.record-value + .record-value { margin-top: 4px; }

.record-meta {
  display: flex;
  gap: 10px;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-faint);
}

.status-message {
  font-size: 13px;
  color: var(--text-muted);
  font-style: normal;
}

.status-message.is-alert { color: var(--alert); }

/* ---------- How it works ---------- */

.how-it-works {
  padding: 64px 24px;
  border-top: 1px solid var(--border-soft);
}

.how-it-works h2 {
  font-size: 22px;
  margin-bottom: 28px;
}

.hiw-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.hiw-card {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 20px;
}

.hiw-num {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 12px;
  margin: 0 0 10px;
}

.hiw-card h3 {
  font-size: 15px;
  margin-bottom: 8px;
}

.hiw-card p:last-child {
  color: var(--text-muted);
  font-size: 13.5px;
  margin: 0;
}

/* ---------- Resolvers list ---------- */

.resolvers-list {
  padding: 0 24px 64px;
}

.resolvers-list h2 { font-size: 22px; margin-bottom: 10px; }

.resolvers-note {
  color: var(--text-muted);
  font-size: 14px;
  max-width: 560px;
  margin: 0 0 20px;
}

.resolver-chips {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.resolver-chips li {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  padding: 6px 14px;
}

.resolver-chips li span {
  color: var(--text-faint);
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--border-soft);
  padding: 36px 24px 48px;
}

.footer-note {
  color: var(--text-faint);
  font-size: 12.5px;
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

/* ---------- Responsive ---------- */

@media (max-width: 640px) {
  .hero { padding: 48px 20px 32px; }
  .query-bar { flex-direction: column; border-radius: var(--radius); }
  .query-prompt { display: none; }
  .query-bar select { border-left: none; border-top: 1px solid var(--border); }
  .query-bar button { padding: 14px; justify-content: center; }
  .hiw-grid { grid-template-columns: 1fr; }
  .header-nav { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .status-dot.pending { animation: none; }
  .btn-arrow { transition: none; }
}