/* ─── Reset & Variables ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg-0:      #0a0a0b;   /* deepest background */
  --bg-1:      #111114;   /* page background */
  --bg-2:      #18181d;   /* card background */
  --bg-3:      #202028;   /* panel background */
  --bg-4:      #2a2a35;   /* input/hover background */

  --red:       #e03535;   /* primary accent */
  --red-dim:   #c02020;
  --red-glow:  rgba(224, 53, 53, 0.18);
  --red-pale:  rgba(224, 53, 53, 0.08);

  --text-1:    #f0eff4;   /* primary text */
  --text-2:    #a09eb8;   /* secondary text */
  --text-3:    #5c5a72;   /* muted text */
  --border:    rgba(255,255,255,0.07);
  --border-red:rgba(224, 53, 53, 0.3);

  --green:     #2ecc71;
  --amber:     #f39c12;
  --blue:      #3498db;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono: 'Fira Mono', 'Consolas', monospace;

  --transition: 0.2s ease;
}

/* ─── Base ───────────────────────────────────────────────────────────────── */
html { scroll-behavior: smooth; }

body {
  background: var(--bg-1);
  color: var(--text-1);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ─── Header ─────────────────────────────────────────────────────────────── */
.site-header {
  padding: 28px 40px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.3px;
  color: var(--text-1);
  text-decoration: none;
}

.logo-icon {
  font-size: 26px;
  color: var(--red);
  filter: drop-shadow(0 0 8px var(--red-glow));
}

.accent { color: var(--red); }

.tagline {
  color: var(--text-3);
  font-size: 13px;
  margin-left: auto;
}

/* ─── Main ───────────────────────────────────────────────────────────────── */
main {
  flex: 1;
  width: 100%;
  max-width: 860px;
  margin: 0 auto;
  padding: 48px 24px 64px;
}

/* ─── Search Section ─────────────────────────────────────────────────────── */
.search-section {
  text-align: center;
  margin-bottom: 32px;
}

.search-title {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 8px;
}

.search-subtitle {
  color: var(--text-2);
  margin-bottom: 28px;
  font-size: 14px;
}

.search-box {
  display: flex;
  gap: 0;
  max-width: 620px;
  margin: 0 auto;
  border: 1px solid var(--border-red);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-2);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.search-box:focus-within {
  border-color: var(--red);
  box-shadow: 0 0 0 3px var(--red-glow);
}

.search-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-1);
  font-size: 15px;
  padding: 14px 18px;
  font-family: var(--font-mono);
  letter-spacing: 0.2px;
}

.search-input::placeholder { color: var(--text-3); }

.search-btn {
  background: var(--red);
  border: none;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  padding: 0 24px;
  cursor: pointer;
  transition: background var(--transition), transform 0.1s;
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.search-btn:hover  { background: var(--red-dim); }
.search-btn:active { transform: scale(0.97); }
.search-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* ─── Hint Badges ────────────────────────────────────────────────────────── */
.hint-badges {
  margin-top: 14px;
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
}

.badge {
  background: var(--bg-3);
  border: 1px solid var(--border);
  color: var(--text-2);
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 20px;
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition);
  user-select: none;
}

.badge:hover {
  border-color: var(--red);
  color: var(--text-1);
}

/* ─── Spinner ────────────────────────────────────────────────────────────── */
.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ─── Error Banner ───────────────────────────────────────────────────────── */
.error-banner {
  background: rgba(224, 53, 53, 0.1);
  border: 1px solid rgba(224, 53, 53, 0.4);
  border-radius: var(--radius-md);
  color: #ff8080;
  padding: 12px 18px;
  margin-bottom: 20px;
  font-size: 14px;
  animation: fadeIn 0.3s ease;
}

/* ─── Results Section ────────────────────────────────────────────────────── */
.results-section {
  animation: slideUp 0.4s ease;
}

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

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ─── Summary Bar ────────────────────────────────────────────────────────── */
.summary-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  margin-bottom: 16px;
}

.summary-query {
  font-size: 13px;
  color: var(--text-2);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.summary-query code {
  background: var(--bg-3);
  color: var(--text-1);
  font-family: var(--font-mono);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 13px;
}

.type-badge {
  background: var(--red-pale);
  border: 1px solid var(--border-red);
  color: var(--red);
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 20px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.confidence-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  font-size: 13px;
  color: var(--text-2);
}

.conf-bar-outer {
  width: 100px;
  height: 6px;
  background: var(--bg-4);
  border-radius: 3px;
  overflow: hidden;
}

.conf-bar {
  height: 100%;
  border-radius: 3px;
  background: var(--red);
  transition: width 0.7s cubic-bezier(0.4, 0, 0.2, 1);
  width: 0%;
}

.conf-pct {
  font-weight: 700;
  color: var(--text-1);
  min-width: 36px;
  text-align: right;
}

.copy-btn {
  background: var(--bg-3);
  border: 1px solid var(--border);
  color: var(--text-2);
  font-size: 12px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition);
  white-space: nowrap;
}

.copy-btn:hover {
  border-color: var(--red);
  color: var(--text-1);
}

/* ─── Tab Nav ────────────────────────────────────────────────────────────── */
.tab-nav {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0;
  overflow-x: auto;
  scrollbar-width: none;
  padding-bottom: 0;
}

.tab-nav::-webkit-scrollbar { display: none; }

.tab-btn {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-3);
  font-size: 13px;
  font-weight: 500;
  padding: 10px 16px;
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 6px;
  position: relative;
  top: 1px;   /* overlap the border-bottom */
}

.tab-btn:hover { color: var(--text-1); }

.tab-btn.active {
  color: var(--red);
  border-bottom-color: var(--red);
}

.tab-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-3);
}

.tab-dot.found   { background: var(--green); }
.tab-dot.error   { background: var(--amber); }
.tab-dot.missing { background: var(--text-3); }

/* ─── Tab Panels ─────────────────────────────────────────────────────────── */
.tab-panel {
  display: none;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  padding: 24px;
  animation: fadeIn 0.25s ease;
}

.tab-panel.active { display: block; }

/* ─── Result Cards ───────────────────────────────────────────────────────── */
.result-card {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px;
  margin-bottom: 14px;
}

.result-card:last-child { margin-bottom: 0; }

.card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  font-weight: 600;
  font-size: 14px;
  color: var(--text-1);
}

.card-icon { font-size: 18px; }

.status-pill {
  margin-left: auto;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.status-pill.found   { background: rgba(46,204,113,0.12); color: var(--green); border: 1px solid rgba(46,204,113,0.3); }
.status-pill.missing { background: var(--bg-4); color: var(--text-3); border: 1px solid var(--border); }
.status-pill.error   { background: rgba(243,156,18,0.12); color: var(--amber); border: 1px solid rgba(243,156,18,0.3); }

/* ─── Field Grid ─────────────────────────────────────────────────────────── */
.field-grid {
  display: grid;
  grid-template-columns: minmax(100px, 140px) 1fr;
  gap: 6px 12px;
  font-size: 13px;
}

.field-label {
  color: var(--text-3);
  align-self: start;
  padding-top: 1px;
}

.field-value {
  color: var(--text-1);
  word-break: break-all;
}

.field-value a {
  color: var(--blue);
  text-decoration: none;
}
.field-value a:hover { text-decoration: underline; }

.field-value .tag {
  display: inline-block;
  background: var(--bg-4);
  border: 1px solid var(--border);
  color: var(--text-2);
  font-size: 11px;
  padding: 2px 7px;
  border-radius: 4px;
  margin: 2px 2px 2px 0;
  font-family: var(--font-mono);
}

/* ─── Avatar ─────────────────────────────────────────────────────────────── */
.avatar-wrap {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.avatar-img {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 2px solid var(--border-red);
  object-fit: cover;
  flex-shrink: 0;
}

/* ─── No Data State ──────────────────────────────────────────────────────── */
.no-data {
  color: var(--text-3);
  font-size: 13px;
  font-style: italic;
  text-align: center;
  padding: 24px 0;
}

/* ─── DNS List ───────────────────────────────────────────────────────────── */
.dns-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}

.dns-list li {
  background: var(--bg-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-2);
  padding: 3px 9px;
}

/* ─── Utilities ──────────────────────────────────────────────────────────── */
.hidden { display: none !important; }

/* ─── Footer ─────────────────────────────────────────────────────────────── */
.site-footer {
  text-align: center;
  color: var(--text-3);
  font-size: 12px;
  padding: 18px;
  border-top: 1px solid var(--border);
  margin-top: auto;
}

/* ─── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 560px) {
  .site-header { padding: 18px 20px; }
  main { padding: 32px 16px 48px; }
  .summary-bar { flex-direction: column; align-items: flex-start; }
  .confidence-wrap { margin-left: 0; }
  .field-grid { grid-template-columns: 1fr; }
  .field-label { color: var(--text-3); font-size: 11px; margin-bottom: -4px; }
}