/* ============================================================
   NetDig — Shared Styles
   Fonts: Inter (display + body), JetBrains Mono (code)
   ============================================================ */

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

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --bg:          #06080f;
  --bg2:         #0a0e1a;
  --bg3:         #0d1224;
  --bg4:         #111829;
  --bg-hover:    #141f35;
  --border:      #1a2744;
  --border2:     #243357;

  --cyan:        #06b6d4;
  --cyan-bright: #22d3ee;
  --cyan-dim:    rgba(6, 182, 212, 0.12);
  --cyan-glow:   rgba(6, 182, 212, 0.3);

  --orange:      #f97316;
  --orange-dim:  rgba(249, 115, 22, 0.12);

  --green:       #22c55e;
  --green-dim:   rgba(34, 197, 94, 0.12);
  --red:         #ef4444;
  --red-dim:     rgba(239, 68, 68, 0.12);
  --yellow:      #eab308;
  --yellow-dim:  rgba(234, 179, 8, 0.12);

  --text:        #f1f5f9;
  --text-dim:    #94a3b8;
  --text-muted:  #8fa3bf;
  --text-faint:  #475569;

  --radius:      10px;
  --radius-lg:   16px;

  --mono: 'JetBrains Mono', 'Courier New', monospace;
  --sans: 'Inter', system-ui, sans-serif;
  --display: 'Inter', system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

a { color: var(--cyan); text-decoration: none; transition: color .2s; }
a:hover { color: var(--cyan-bright); }

img { max-width: 100%; display: block; }

/* ── Scrollbar ─────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--cyan); }

/* ── Layout ────────────────────────────────────────────────── */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.container--wide { max-width: 1280px; }
.container--narrow { max-width: 760px; }

/* ── Grid noise bg texture ─────────────────────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(6,182,212,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(6,182,212,.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

/* ── Header / Nav ──────────────────────────────────────────── */
#site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(6, 8, 15, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  gap: 24px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--display);
  font-size: 20px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.5px;
}

.nav-logo svg { flex-shrink: 0; }
.logo-dot { color: var(--cyan); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  flex: 1;
  justify-content: center;
}

.nav-links a {
  color: var(--text-dim);
  font-size: 13.5px;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 6px;
  transition: all .2s;
}

.nav-links a:hover, .nav-links a.active {
  color: var(--text);
  background: var(--bg4);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-ghost {
  color: var(--text-dim);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 6px;
  border: 1px solid var(--border);
  transition: all .2s;
  cursor: pointer;
  background: transparent;
}

.btn-ghost:hover {
  color: var(--text);
  border-color: var(--border2);
  background: var(--bg4);
}

.hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 4px;
}

.mobile-nav {
  display: none;
  position: absolute;
  top: 60px;
  left: 0;
  right: 0;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 12px 24px;
  flex-direction: column;
  gap: 4px;
}

.mobile-nav.open { display: flex; }
.mobile-nav a {
  color: var(--text-dim);
  font-size: 14px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}

.mobile-nav a:last-child { border-bottom: none; }

/* ── Hero ──────────────────────────────────────────────────── */
.hero {
  position: relative;
  padding: 80px 0 72px;
  overflow: hidden;
  z-index: 1;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px; left: 50%;
  transform: translateX(-50%);
  width: 800px; height: 600px;
  background: radial-gradient(ellipse, rgba(6,182,212,.12) 0%, transparent 65%);
  pointer-events: none;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--cyan);
  background: var(--cyan-dim);
  border: 1px solid rgba(6,182,212,.2);
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: 20px;
  letter-spacing: .5px;
}

.hero-eyebrow::before {
  content: '';
  width: 6px; height: 6px;
  background: var(--cyan);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .4; transform: scale(.7); }
}

.hero h1 {
  font-family: var(--display);
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -2px;
  color: var(--text);
  margin-bottom: 18px;
}

.hero h1 span { color: var(--cyan); }

.hero-sub {
  font-size: 17px;
  color: var(--text-dim);
  max-width: 560px;
  margin-bottom: 40px;
  line-height: 1.7;
}

.hero-search {
  display: flex;
  gap: 0;
  max-width: 580px;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .2s;
}

.hero-search:focus-within {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px var(--cyan-dim);
}

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

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

.hero-search select {
  background: var(--bg4);
  border: none;
  border-left: 1px solid var(--border);
  outline: none;
  padding: 0 14px;
  color: var(--text-dim);
  font-size: 13px;
  font-family: var(--mono);
  cursor: pointer;
}

.hero-search button {
  background: var(--cyan);
  color: var(--bg);
  border: none;
  padding: 0 22px;
  font-size: 13px;
  font-weight: 700;
  font-family: var(--display);
  cursor: pointer;
  transition: background .2s;
  letter-spacing: .5px;
}

.hero-search button:hover { background: var(--cyan-bright); }

.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.hero-stat { display: flex; flex-direction: column; }
.hero-stat strong {
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 600;
  color: var(--cyan);
}
.hero-stat span { font-size: 12px; color: var(--text-muted); }

/* ── Quick result (homepage hero) ──────────────────────────── */
#hero-result {
  max-width: 580px;
  margin-top: 16px;
  display: none;
}

#hero-result.visible { display: block; }

/* ── Sections ──────────────────────────────────────────────── */
.section { position: relative; z-index: 1; padding: 64px 0; }
.section--sm { padding: 40px 0; }
.section--lg { padding: 96px 0; }

.section-label {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--cyan);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.section-title {
  font-family: var(--display);
  font-size: clamp(24px, 3vw, 38px);
  font-weight: 800;
  letter-spacing: -1px;
  color: var(--text);
  margin-bottom: 10px;
}

.section-sub {
  font-size: 15px;
  color: var(--text-dim);
  max-width: 520px;
}

/* ── Category header ───────────────────────────────────────── */
.cat-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

.cat-icon {
  width: 36px; height: 36px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.cat-icon--cyan { background: var(--cyan-dim); color: var(--cyan); }
.cat-icon--orange { background: var(--orange-dim); color: var(--orange); }
.cat-icon--green { background: var(--green-dim); color: var(--green); }
.cat-icon--yellow { background: var(--yellow-dim); color: var(--yellow); }
.cat-icon--red { background: var(--red-dim); color: var(--red); }

.cat-name {
  font-family: var(--display);
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}

.cat-count {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-muted);
  margin-left: auto;
}

/* ── Tool Cards ────────────────────────────────────────────── */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}

.tool-card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 16px;
  cursor: pointer;
  transition: all .2s;
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
  overflow: hidden;
}

.tool-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0;
  transition: opacity .3s;
}

.tool-card:hover {
  background: var(--bg4);
  border-color: var(--border2);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,.4);
}

.tool-card:hover::before { opacity: 1; }

.tool-card-icon {
  width: 32px; height: 32px;
  border-radius: 7px;
  display: grid;
  place-items: center;
  background: var(--cyan-dim);
  color: var(--cyan);
  font-size: 15px;
}

.tool-card-name {
  font-family: var(--display);
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
}

.tool-card-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.4;
}

.tool-card-arrow {
  margin-top: auto;
  color: var(--cyan);
  font-size: 12px;
  opacity: 0;
  transition: opacity .2s, transform .2s;
  display: flex;
  align-items: center;
  gap: 4px;
}

.tool-card:hover .tool-card-arrow { opacity: 1; transform: translateX(3px); }

/* ── Tool Page Layout ──────────────────────────────────────── */
.tool-page { padding: 48px 0 80px; position: relative; z-index: 1; }

.tool-header {
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 36px;
}

.tool-breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 16px;
  font-family: var(--mono);
}

.tool-breadcrumb a { color: var(--cyan); }
.tool-breadcrumb span { color: var(--border2); }

.tool-title {
  font-family: var(--display);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  letter-spacing: -1.5px;
  color: var(--text);
  margin-bottom: 10px;
}

.tool-subtitle {
  font-size: 15px;
  color: var(--text-dim);
  max-width: 580px;
}

/* ── Tool Card ─────────────────────────────────────────────── */
.tool-box {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 32px;
}

.tool-box-header {
  padding: 18px 24px;
  background: var(--bg4);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
}

.tool-box-dots {
  display: flex;
  gap: 5px;
}

.dot {
  width: 10px; height: 10px;
  border-radius: 50%;
}

.dot-red { background: #ff5f57; }
.dot-yellow { background: #febc2e; }
.dot-green { background: #28c840; }

.tool-box-title {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-muted);
  margin-left: 8px;
}

.tool-box-body { padding: 24px; }

/* ── Form Elements ─────────────────────────────────────────── */
.input-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
  min-width: 180px;
}

.input-label {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: .5px;
  text-transform: uppercase;
}

.tool-input {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-family: var(--mono);
  font-size: 14px;
  color: var(--text);
  outline: none;
  transition: all .2s;
  width: 100%;
}

.tool-input::placeholder { color: var(--text-muted); }

.tool-input:focus {
  border-color: var(--cyan);
  background: var(--bg3);
  box-shadow: 0 0 0 3px var(--cyan-dim);
}

.tool-select {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-dim);
  outline: none;
  cursor: pointer;
  transition: border-color .2s;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2364748b' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

.tool-select:focus { border-color: var(--cyan); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-family: var(--display);
  font-size: 14px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: all .2s;
  white-space: nowrap;
  letter-spacing: .3px;
}

.btn-primary {
  background: var(--cyan);
  color: var(--bg);
}

.btn-primary:hover {
  background: var(--cyan-bright);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px var(--cyan-glow);
}

.btn-primary:active { transform: translateY(0); }

.btn-primary:disabled {
  opacity: .5;
  cursor: not-allowed;
  transform: none;
}

.btn-outline {
  background: transparent;
  color: var(--cyan);
  border: 1px solid var(--border2);
}

.btn-outline:hover {
  border-color: var(--cyan);
  background: var(--cyan-dim);
}

.btn-sm { padding: 7px 14px; font-size: 12px; }

/* ── Results ───────────────────────────────────────────────── */
.result-area {
  margin-top: 20px;
  display: none;
}

.result-area.visible { display: block; }

.result-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 8px;
}

.result-query {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
}

.result-query strong { color: var(--cyan); }

.result-actions {
  display: flex;
  gap: 8px;
}

/* ── DNS Table ─────────────────────────────────────────────── */
.dns-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.dns-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--mono);
  font-size: 13px;
}

.dns-table thead th {
  background: var(--bg4);
  color: var(--text-muted);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 10px 16px;
  text-align: left;
  white-space: nowrap;
  border-bottom: 1px solid var(--border);
}

.dns-table tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background .15s;
}

.dns-table tbody tr:last-child { border-bottom: none; }
.dns-table tbody tr:hover { background: var(--bg4); }

.dns-table td {
  padding: 12px 16px;
  color: var(--text-dim);
  vertical-align: top;
  word-break: break-all;
}

.dns-table td:first-child { color: var(--text); }

/* ── Record type badges ─────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .5px;
}

.badge-A    { background: rgba(6,182,212,.2);  color: var(--cyan); }
.badge-AAAA { background: rgba(139,92,246,.2); color: #a78bfa; }
.badge-MX   { background: rgba(249,115,22,.2); color: var(--orange); }
.badge-NS   { background: rgba(234,179,8,.2);  color: var(--yellow); }
.badge-TXT  { background: rgba(34,197,94,.2);  color: var(--green); }
.badge-CNAME{ background: rgba(236,72,153,.2); color: #f472b6; }
.badge-SOA  { background: rgba(99,102,241,.2); color: #818cf8; }
.badge-PTR  { background: rgba(20,184,166,.2); color: #2dd4bf; }
.badge-CAA  { background: rgba(239,68,68,.2);  color: var(--red); }
.badge-SRV  { background: rgba(168,85,247,.2); color: #c084fc; }

/* ── Status indicators ──────────────────────────────────────── */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 100px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
}

.status-open   { background: var(--green-dim); color: var(--green); }
.status-closed { background: var(--red-dim);   color: var(--red); }
.status-valid  { background: var(--green-dim); color: var(--green); }
.status-invalid{ background: var(--red-dim);   color: var(--red); }
.status-warn   { background: var(--yellow-dim);color: var(--yellow); }

.status-pill::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
}

/* ── Info Cards ─────────────────────────────────────────────── */

.info-card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
}

.info-card-label {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 6px;
}

/* Info block — used in email-header-analyzer 2-col section */
.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 24px;
}
@media (max-width: 640px) {
  .info-grid { grid-template-columns: 1fr; }
}
.info-block {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
}
.info-block h2 {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -.2px;
  margin: 0 0 14px;
  color: var(--text);
}
.info-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.info-list li {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
  padding-left: 14px;
  position: relative;
}
.info-list li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--cyan);
  font-weight: 700;
}
.info-list li strong { color: var(--text); font-weight: 600; }

.info-card-value {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  word-break: break-all;
}

.info-card-sub {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ── Monospace output block ─────────────────────────────────── */
.mono-output {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--text-dim);
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.8;
  max-height: 500px;
  overflow-y: auto;
}

/* ── Loading ────────────────────────────────────────────────── */
.loading {
  display: none;
  align-items: center;
  gap: 10px;
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 13px;
  padding: 20px 0;
}

.loading.visible { display: flex; }

.spinner {
  width: 18px; height: 18px;
  border: 2px solid var(--border2);
  border-top-color: var(--cyan);
  border-radius: 50%;
  animation: spin .7s linear infinite;
  flex-shrink: 0;
}

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

/* ── Empty / Error ─────────────────────────────────────────── */
.empty-state {
  padding: 32px;
  text-align: center;
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 13px;
}

.error-msg {
  background: var(--red-dim);
  border: 1px solid rgba(239,68,68,.2);
  border-radius: var(--radius);
  padding: 14px 18px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--red);
  display: none;
}

.error-msg.visible { display: block; }

/* ── Copy button ────────────────────────────────────────────── */
.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border-radius: 6px;
  font-size: 11px;
  font-family: var(--mono);
  font-weight: 500;
  background: var(--bg4);
  color: var(--text-muted);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all .2s;
}

.copy-btn:hover { color: var(--cyan); border-color: var(--cyan); background: var(--cyan-dim); }
.copy-btn.copied { color: var(--green); border-color: var(--green); }

/* ── Content / Info sections ────────────────────────────────── */
.info-section {
  margin-top: 48px;
}

.info-section h2 {
  font-family: var(--display);
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
  letter-spacing: -.5px;
}

.info-section h3 {
  font-family: var(--display);
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.info-section p {
  font-size: 14.5px;
  color: var(--text-dim);
  line-height: 1.75;
  margin-bottom: 12px;
  max-width: 720px;
}

.info-section ul, .info-section ol {
  padding-left: 20px;
  color: var(--text-dim);
  font-size: 14px;
  line-height: 2;
  max-width: 680px;
}

.info-section code {
  font-family: var(--mono);
  font-size: 12px;
  background: var(--bg4);
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--cyan);
}

/* ── FAQ ────────────────────────────────────────────────────── */
.faq-list { margin-top: 24px; max-width: 740px; }

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 8px;
  overflow: hidden;
  transition: border-color .2s;
}

.faq-item.open { border-color: var(--border2); }

.faq-q {
  width: 100%;
  text-align: left;
  padding: 16px 20px;
  background: var(--bg3);
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  font-family: var(--sans);
  border: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  transition: background .2s;
}

.faq-q:hover { background: var(--bg4); }

.faq-arrow {
  flex-shrink: 0;
  transition: transform .25s;
  color: var(--text-muted);
}

.faq-item.open .faq-arrow { transform: rotate(180deg); }
.faq-item.open .faq-q { background: var(--bg4); }

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease, padding .3s;
  background: var(--bg3);
  padding: 0 20px;
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.75;
}

.faq-item.open .faq-a {
  max-height: 300px;
  padding: 16px 20px;
}

/* ── Subnet / Calculator ────────────────────────────────────── */
.calc-result {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-top: 16px;
  display: none;
}

.calc-result.visible { display: block; }

.calc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}

.calc-item { display: flex; flex-direction: column; gap: 4px; }
.calc-item-label {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
}
.calc-item-value {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--text);
  font-weight: 600;
}

/* ── Port multi-check ───────────────────────────────────────── */
.port-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 8px;
  margin-top: 16px;
}

.port-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  gap: 8px;
}

.port-num {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}

.port-service {
  font-size: 11px;
  color: var(--text-muted);
}

/* ── IP Map placeholder ─────────────────────────────────────── */
.ip-flag {
  font-size: 24px;
  line-height: 1;
}

/* ── Ad slot ────────────────────────────────────────────────── */
.ad-slot {
  background: var(--bg3);
  border: 1px dashed var(--border2);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  color: var(--text-muted);
  font-size: 11px;
  font-family: var(--mono);
  margin: 32px 0;
}

/* ── Divider ────────────────────────────────────────────────── */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 40px 0;
}

/* ── Footer ─────────────────────────────────────────────────── */
#site-footer {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  padding: 48px 0 32px;
  position: relative;
  z-index: 1;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, 1fr);
  gap: 48px;
  margin-bottom: 40px;
}

.footer-brand p {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 12px;
  max-width: 260px;
  line-height: 1.65;
}

.footer-col h4 {
  font-family: var(--display);
  font-size: 12px;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 14px;
}

.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.footer-col a { font-size: 13px; color: var(--text-muted); transition: color .2s; }
.footer-col a:hover { color: var(--cyan); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p { font-size: 12px; color: var(--text-muted); }
.footer-bottom a { color: var(--text-muted); }
.footer-bottom a:hover { color: var(--cyan); }

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: block; }
  .hero { padding: 48px 0 48px; }
  .hero-search { flex-wrap: wrap; }
  .hero-search select { display: none; }
  .hero-stats { gap: 20px; }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .tools-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }

  .input-row { flex-direction: column; }

  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .footer-inner { grid-template-columns: 1fr; }
  .port-grid { grid-template-columns: 1fr 1fr; }
}

/* ── Fade-in animation ──────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-up { animation: fadeUp .4s ease both; }
.fade-up-d1 { animation-delay: .1s; }
.fade-up-d2 { animation-delay: .2s; }
.fade-up-d3 { animation-delay: .3s; }

/* ── Security Headers / HTTP Headers Tool ───────────────────── */
.security-grade-block {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin: 24px 0;
  background: var(--bg2);
}
.security-grade-block.grade-a { border-color: var(--green); background: var(--green-dim); }
.security-grade-block.grade-b { border-color: var(--cyan); background: rgba(6,182,212,.08); }
.security-grade-block.grade-c { border-color: var(--yellow); background: var(--yellow-dim); }
.security-grade-block.grade-fail { border-color: var(--red); background: var(--red-dim); }

.grade-letter {
  font-family: var(--display);
  font-size: 52px;
  font-weight: 800;
  line-height: 1;
  min-width: 56px;
}
.grade-a .grade-letter { color: var(--green); }
.grade-b .grade-letter { color: var(--cyan); }
.grade-c .grade-letter { color: var(--yellow); }
.grade-fail .grade-letter { color: var(--red); }

.grade-label { font-weight: 600; font-size: 15px; }
.grade-score { font-size: 13px; color: var(--text-muted); margin-top: 2px; }

.security-headers-grid {
  display: grid;
  gap: 10px;
}
.sec-header-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg2);
}
.sec-header-item.sec-present { border-color: rgba(34,197,94,.3); }
.sec-header-item.sec-missing { border-color: rgba(239,68,68,.25); opacity: .9; }

.sec-header-status {
  font-size: 18px;
  font-weight: 700;
  min-width: 24px;
  margin-top: 1px;
}
.sec-present .sec-header-status { color: var(--green); }
.sec-missing .sec-header-status { color: var(--red); }

.sec-header-info { flex: 1; min-width: 0; }
.sec-header-name { font-weight: 600; font-size: 14px; }
.sec-header-key { font-family: var(--mono); font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.sec-header-value {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--cyan);
  margin-top: 4px;
  word-break: break-all;
}

.importance-badge {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 20px;
  white-space: nowrap;
  align-self: flex-start;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.imp-critical { background: rgba(239,68,68,.15); color: #f87171; }
.imp-high { background: rgba(249,115,22,.15); color: #fb923c; }
.imp-medium { background: rgba(234,179,8,.15); color: #fbbf24; }

.raw-headers-table {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  font-family: var(--mono);
  font-size: 12px;
}
.raw-hdr-row {
  display: grid;
  grid-template-columns: 240px 1fr;
  border-bottom: 1px solid var(--border);
}
.raw-hdr-row:last-child { border-bottom: none; }
.raw-hdr-key {
  padding: 8px 12px;
  background: var(--bg2);
  color: var(--cyan);
  border-right: 1px solid var(--border);
  word-break: break-all;
}
.raw-hdr-val {
  padding: 8px 12px;
  color: var(--text-muted);
  word-break: break-all;
}

.code-examples { display: grid; gap: 16px; margin-top: 16px; }
.code-block { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.code-label { padding: 8px 16px; background: var(--bg3, #0e1117); font-size: 12px; font-weight: 600; color: var(--text-muted); border-bottom: 1px solid var(--border); }
.code-block pre { margin: 0; padding: 16px; overflow-x: auto; }
.code-block code { font-family: var(--mono); font-size: 12px; color: var(--cyan); }

/* ── DNS Propagation Tool ───────────────────────────────────── */
.propagation-progress {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-top: 20px;
}
.prop-status { font-size: 14px; color: var(--text-muted); margin-bottom: 12px; }
.prop-bar-track { height: 6px; background: var(--bg3, #0e1117); border-radius: 3px; overflow: hidden; }
.prop-bar-fill { height: 100%; background: var(--cyan); border-radius: 3px; transition: width .2s; }

.prop-summary {
  display: flex;
  gap: 24px;
  margin-bottom: 24px;
  padding: 20px 24px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.prop-summary-stat { text-align: center; }
.stat-num { font-family: var(--display); font-size: 32px; font-weight: 800; color: var(--cyan); }
.stat-success .stat-num { color: var(--green); }
.stat-warn .stat-num { color: var(--yellow); }
.stat-label { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

.expected-values {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}
.ev-label { font-size: 13px; color: var(--text-muted); }
.ev-val {
  font-family: var(--mono);
  font-size: 12px;
  background: var(--bg2);
  border: 1px solid var(--border);
  padding: 3px 10px;
  border-radius: 4px;
  color: var(--cyan);
}

.prop-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 10px;
}
.prop-server {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg2);
}
.prop-server.propagated { border-color: rgba(34,197,94,.3); }
.prop-server.not-propagated { border-color: rgba(239,68,68,.2); opacity: .75; }

.prop-server-flag { font-size: 20px; line-height: 1; margin-top: 2px; }
.prop-server-info { flex: 1; min-width: 0; }
.prop-server-name { font-weight: 600; font-size: 13px; }
.prop-server-ip { font-family: var(--mono); font-size: 11px; color: var(--text-muted); margin-top: 2px; }
.prop-answer { font-family: var(--mono); font-size: 11px; color: var(--cyan); margin-top: 4px; word-break: break-all; }
.prop-no-answer { font-size: 11px; color: var(--red); margin-top: 4px; }
.prop-status-icon { font-size: 16px; font-weight: 700; margin-left: auto; }
.propagated .prop-status-icon { color: var(--green); }
.not-propagated .prop-status-icon { color: var(--red); }

/* ── Is It Down tool ────────────────────────────────────────── */
.down-result {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px;
  border-radius: var(--radius);
  border: 2px solid;
  margin-bottom: 20px;
}
.site-up { border-color: var(--green); background: var(--green-dim); }
.site-down { border-color: var(--red); background: var(--red-dim); }

.down-icon { font-size: 40px; font-weight: 800; font-family: var(--display); line-height: 1; }
.site-up .down-icon { color: var(--green); }
.site-down .down-icon { color: var(--red); }

.down-status { font-family: var(--display); font-size: 28px; font-weight: 800; line-height: 1; }
.site-up .down-status { color: var(--green); }
.site-down .down-status { color: var(--red); }

.down-url { font-family: var(--mono); font-size: 13px; color: var(--text-muted); margin-top: 4px; word-break: break-all; }
.down-message { font-size: 14px; margin-top: 6px; }

.down-tips {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-top: 20px;
}
.down-tips h3 { font-size: 14px; font-weight: 600; margin: 0 0 12px; }
.down-tips ul { margin: 0; padding-left: 20px; }
.down-tips li { font-size: 13px; color: var(--text-muted); margin-bottom: 6px; }
.down-tips code { font-family: var(--mono); font-size: 11px; background: var(--bg3, #0e1117); padding: 2px 6px; border-radius: 3px; }

/* ── Email Deliverability tool ──────────────────────────────── */
.email-checks { display: grid; gap: 10px; margin-top: 20px; }
.email-check {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg2);
}
.email-check.check-pass { border-color: rgba(34,197,94,.3); }
.email-check.check-fail { border-color: rgba(239,68,68,.25); }
.email-check.check-warn { border-color: rgba(234,179,8,.25); }

.check-icon { font-size: 18px; font-weight: 700; min-width: 22px; margin-top: 1px; }
.check-pass .check-icon { color: var(--green); }
.check-fail .check-icon { color: var(--red); }
.check-warn .check-icon { color: var(--yellow); }

.check-body { flex: 1; min-width: 0; }
.check-label { font-weight: 600; font-size: 14px; }
.check-value {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--cyan);
  margin-top: 5px;
  word-break: break-all;
  white-space: pre-wrap;
}
.check-note { font-size: 12px; color: var(--text-muted); margin-top: 5px; }
.check-note code { font-family: var(--mono); font-size: 11px; background: var(--bg3,#0e1117); padding: 1px 5px; border-radius: 3px; }

.tool-input-sm {
  height: 44px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--mono);
  font-size: 13px;
  padding: 0 14px;
  outline: none;
  transition: border-color .2s;
}
.tool-input-sm:focus { border-color: var(--cyan); }
.tool-input-sm::placeholder { color: var(--text-muted); }

/* ── cat-icon variants ──────────────────────────────────────── */
.cat-icon--cyan { background: rgba(6,182,212,.12); color: var(--cyan); }

/* ── DNS Record Builder ─────────────────────────────────────── */
.builder-controls { display:flex; gap:16px; flex-wrap:wrap; }
.builder-field { display:flex; flex-direction:column; gap:6px; flex:1; min-width:200px; }
.builder-label { font-size:12px; font-weight:600; color:var(--text-muted); text-transform:uppercase; letter-spacing:.05em; }
.service-search-wrap { position:relative; }
.service-dropdown {
  position:absolute; top:calc(100% + 4px); left:0; right:0; z-index:100;
  background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius);
  overflow:hidden; box-shadow:0 8px 24px rgba(0,0,0,.4);
}
.svc-drop-item { display:flex; align-items:flex-start; gap:12px; padding:12px 14px; cursor:pointer; transition:background .15s; }
.svc-drop-item:hover { background:var(--bg3,#0e1117); }
.svc-drop-icon { font-size:18px; margin-top:1px; }
.svc-drop-name { font-weight:600; font-size:13px; }
.svc-drop-cat { font-size:11px; color:var(--text-muted); margin-top:2px; }

.service-badges { display:flex; flex-direction:column; gap:20px; width:100%; }
.svc-category { width:100%; }
.svc-cat-label { font-size:11px; font-weight:700; color:var(--text-muted); text-transform:uppercase; letter-spacing:.08em; margin-bottom:8px; }
.svc-badges { display:flex; flex-wrap:wrap; gap:8px; width:100%; }
.svc-badge {
  background:var(--bg2); border:1px solid var(--border); border-radius:20px;
  padding:5px 14px; font-size:13px; cursor:pointer; transition:all .15s; white-space:nowrap;
  flex-shrink:0; color:var(--text);
}
.svc-badge:hover { border-color:var(--cyan); color:var(--cyan); background:rgba(6,182,212,.08); }

.builder-header { margin-bottom:20px; }
.builder-service-name { font-family:var(--display); font-size:22px; font-weight:700; }
.builder-service-desc { font-size:13px; color:var(--text-muted); margin-top:4px; }

.records-list { display:flex; flex-direction:column; gap:12px; }
.record-row { background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius); padding:16px; }
.record-meta { display:flex; align-items:center; gap:10px; margin-bottom:10px; flex-wrap:wrap; }
.record-type-badge { font-family:var(--mono); font-size:11px; font-weight:700; padding:3px 10px; border-radius:4px; }
.type-a    { background:rgba(6,182,212,.15); color:var(--cyan); }
.type-aaaa { background:rgba(6,182,212,.15); color:var(--cyan); }
.type-mx   { background:rgba(249,115,22,.15); color:var(--orange); }
.type-txt  { background:rgba(234,179,8,.15); color:var(--yellow); }
.type-cname{ background:rgba(34,197,94,.15); color:var(--green); }
.type-ns   { background:rgba(139,92,246,.15); color:#a78bfa; }
.type-soa  { background:rgba(255,255,255,.08); color:var(--text-muted); }
.type-caa  { background:rgba(239,68,68,.15); color:var(--red); }
.record-priority, .record-ttl { font-size:11px; color:var(--text-muted); font-family:var(--mono); }

.record-fields { display:grid; grid-template-columns:1fr 1fr; gap:10px; }
.record-field { display:flex; flex-direction:column; gap:4px; }
.record-field.rf-value-wrap { position:relative; }
.rf-label { font-size:10px; font-weight:600; text-transform:uppercase; letter-spacing:.06em; color:var(--text-muted); }
.rf-value { font-family:var(--mono); font-size:12px; color:var(--cyan); word-break:break-all; }
.record-note { font-size:12px; color:var(--text-muted); margin-top:8px; padding-top:8px; border-top:1px solid var(--border); }
.copy-btn {
  margin-top:6px; padding:4px 12px; font-size:11px; font-weight:600;
  background:var(--bg3,#0e1117); border:1px solid var(--border); border-radius:4px;
  cursor:pointer; color:var(--text); transition:all .15s; align-self:flex-start;
}
.copy-btn:hover { border-color:var(--cyan); color:var(--cyan); }
.copy-btn.copied { background:var(--green-dim); border-color:var(--green); color:var(--green); }

/* ── Email Header Analyzer ──────────────────────────────────── */
.header-textarea {
  width:100%; min-height:220px; background:var(--bg2); border:1px solid var(--border);
  border-radius:var(--radius); color:var(--text); font-family:var(--mono); font-size:12px;
  padding:14px; resize:vertical; outline:none; transition:border-color .2s; line-height:1.6;
}
.header-textarea:focus { border-color:var(--cyan); }
.header-textarea::placeholder { color:var(--text-muted); }

.auth-summary { display:flex; gap:16px; flex-wrap:wrap; margin-bottom:20px; }
.auth-item { flex:1; min-width:120px; padding:16px; border-radius:var(--radius); border:1px solid var(--border); background:var(--bg2); text-align:center; }
.auth-proto { font-size:11px; font-weight:700; text-transform:uppercase; letter-spacing:.06em; color:var(--text-muted); margin-bottom:6px; }
.auth-result { font-family:var(--mono); font-size:14px; font-weight:600; }
.auth-pass { border-color:rgba(34,197,94,.3); }
.auth-pass .auth-result { color:var(--green); }
.auth-fail { border-color:rgba(239,68,68,.3); }
.auth-fail .auth-result { color:var(--red); }
.auth-warn { border-color:rgba(234,179,8,.3); }
.auth-warn .auth-result { color:var(--yellow); }
.auth-none .auth-result { color:var(--text-muted); }

.diagnosis-box { background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius); padding:16px 20px; margin-bottom:20px; }
.diagnosis-box ul { margin:8px 0 0; padding-left:18px; }
.diagnosis-box li { font-size:13px; color:var(--text-muted); margin-bottom:4px; }
.diag-title { font-weight:700; font-size:14px; margin-bottom:4px; }
.diagnosis-warn { border-color:rgba(234,179,8,.35); background:rgba(234,179,8,.04); }
.diagnosis-warn .diag-title { color:var(--yellow); }
.diagnosis-ok { border-color:rgba(34,197,94,.35); background:rgba(34,197,94,.04); }
.diagnosis-ok .diag-title { color:var(--green); }

.kv-table { border:1px solid var(--border); border-radius:var(--radius); overflow:hidden; margin-bottom:20px; }
.kv-row { display:grid; grid-template-columns:160px 1fr; border-bottom:1px solid var(--border); }
.kv-row:last-child { border-bottom:none; }
.kv-key { padding:8px 12px; font-size:12px; font-weight:600; background:var(--bg2); color:var(--cyan); border-right:1px solid var(--border); }
.kv-val { padding:8px 12px; font-size:12px; color:var(--text-muted); word-break:break-all; }

.hops-list { display:flex; flex-direction:column; align-items:stretch; }
.hop-item { display:flex; align-items:flex-start; gap:12px; padding:12px 14px; background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius); }
.hop-num { width:28px; height:28px; border-radius:50%; background:var(--cyan); color:#000; font-weight:800; font-size:13px; display:flex; align-items:center; justify-content:center; flex-shrink:0; }
.hop-body { flex:1; }
.hop-server { font-weight:600; font-size:13px; }
.hop-from { font-family:var(--mono); font-size:11px; color:var(--text-muted); margin-top:2px; }
.hop-proto { font-family:var(--mono); font-size:11px; color:var(--cyan); margin-top:2px; }
.hop-time { font-size:11px; color:var(--text-muted); margin-top:3px; }
.hop-delay { font-family:var(--mono); font-size:13px; font-weight:700; margin-left:auto; padding:4px 10px; border-radius:4px; }
.hop-fast   { color:var(--green); background:var(--green-dim); }
.hop-medium { color:var(--yellow); background:var(--yellow-dim); }
.hop-slow   { color:var(--red); background:var(--red-dim); }
.hop-arrow { text-align:center; color:var(--text-muted); padding:4px 0; font-size:18px; }

/* ── Blacklist Checker ──────────────────────────────────────── */
.bl-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:8px; }
.bl-item { display:flex; align-items:flex-start; gap:10px; padding:10px 12px; border-radius:var(--radius); border:1px solid var(--border); background:var(--bg2); }
.bl-item--listed { border-color:rgba(239,68,68,.3); background:rgba(239,68,68,.04); }
.bl-critical { border-color:rgba(239,68,68,.5) !important; }
.bl-status { font-size:15px; font-weight:700; min-width:18px; }
.bl-info { flex:1; min-width:0; }
.bl-name { font-weight:600; font-size:13px; }
.bl-zone { font-family:var(--mono); font-size:10px; color:var(--text-muted); margin-top:2px; }
.bl-weight-badge { font-size:9px; padding:2px 6px; border-radius:3px; text-transform:uppercase; font-weight:700; align-self:flex-start; white-space:nowrap; }
.bl-critical .bl-weight-badge { background:rgba(239,68,68,.2); color:var(--red); }
.bl-high .bl-weight-badge { background:rgba(249,115,22,.2); color:var(--orange); }
.bl-medium .bl-weight-badge { background:rgba(234,179,8,.15); color:var(--yellow); }
.bl-delist-link { font-size:11px; color:var(--cyan); text-decoration:none; white-space:nowrap; align-self:center; margin-left:auto; }
.bl-delist-link:hover { text-decoration:underline; }

/* ── Bulk DNS ───────────────────────────────────────────────── */
.bulk-summary { display:flex; align-items:center; gap:16px; padding:12px 0; margin-bottom:12px; flex-wrap:wrap; }
.bulk-stat { font-size:14px; }
.bulk-none strong { color:var(--text-muted); }
.bulk-error strong { color:var(--red); }
.bulk-table-wrap { overflow-x:auto; }
.bulk-table .bulk-answer code { font-size:11px; color:var(--cyan); font-family:var(--mono); }
.bulk-answer { margin-bottom:2px; }
.bulk-row-empty td { opacity:.5; }
.bulk-row-error td { background:rgba(239,68,68,.04); }

/* ── TTL Planner ────────────────────────────────────────────── */
.ttl-field-group { display:grid; grid-template-columns:repeat(auto-fill,minmax(200px,1fr)); gap:14px; }
.ttl-plan-header { display:flex; align-items:center; gap:16px; padding:16px; background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius); margin-bottom:20px; }
.ttl-plan-icon { font-size:32px; }
.ttl-plan-title { font-family:var(--display); font-size:20px; font-weight:700; }
.ttl-plan-meta { font-size:13px; color:var(--text-muted); margin-top:4px; }

.timeline { display:flex; flex-direction:column; }
.timeline-phase { display:flex; gap:16px; padding:16px; border:1px solid var(--border); border-radius:var(--radius); background:var(--bg2); }
.timeline-connector { width:2px; background:var(--border); height:20px; margin:0 20px; }
.phase-num { width:32px; height:32px; border-radius:50%; background:var(--bg3,#0e1117); border:2px solid var(--border); display:flex; align-items:center; justify-content:center; font-weight:800; font-size:14px; flex-shrink:0; }
.phase-cutover { border-color:var(--cyan); background:rgba(6,182,212,.06); }
.phase-cutover .phase-num { border-color:var(--cyan); color:var(--cyan); }
.phase-cutover .phase-title { color:var(--cyan); }
.phase-past .phase-num { background:var(--green-dim); border-color:var(--green); color:var(--green); }
.phase-body { flex:1; }
.phase-time { font-family:var(--mono); font-size:11px; color:var(--cyan); margin-bottom:4px; }
.phase-title { font-weight:700; font-size:14px; margin-bottom:4px; }
.phase-desc { font-size:13px; color:var(--text-muted); line-height:1.5; }
.phase-action { font-size:12px; font-weight:600; margin-top:8px; color:var(--text); }
.phase-urgency { font-size:12px; color:var(--red); font-weight:600; margin-top:6px; background:rgba(239,68,68,.08); padding:4px 10px; border-radius:4px; }

/* ── DNS Benchmark ──────────────────────────────────────────── */
.bench-winner { background:linear-gradient(135deg,rgba(6,182,212,.15),rgba(6,182,212,.05)); border:1px solid rgba(6,182,212,.4); border-radius:var(--radius); padding:20px 24px; margin-bottom:20px; text-align:center; }
.bench-winner-label { font-size:11px; font-weight:700; text-transform:uppercase; letter-spacing:.08em; color:var(--cyan); margin-bottom:6px; }
.bench-winner-name { font-family:var(--display); font-size:28px; font-weight:800; }
.bench-winner-ip { font-family:var(--mono); font-size:13px; color:var(--text-muted); margin-top:4px; }

.bench-results { display:flex; flex-direction:column; gap:8px; }
.bench-row { display:flex; align-items:center; gap:14px; padding:12px 14px; background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius); }
.bench-winner-row { border-color:rgba(6,182,212,.4); background:rgba(6,182,212,.06); }
.bench-rank { width:24px; font-weight:800; font-family:var(--display); text-align:center; color:var(--text-muted); font-size:16px; }
.bench-winner-row .bench-rank { color:var(--cyan); }
.bench-resolver-info { min-width:160px; }
.bench-name { font-weight:600; font-size:13px; }
.bench-ip { font-family:var(--mono); font-size:11px; color:var(--text-muted); margin-top:1px; }
.bench-bar-wrap { flex:1; display:flex; align-items:center; gap:12px; }
.bench-bar-track { flex:1; height:8px; background:var(--bg3,#0e1117); border-radius:4px; overflow:hidden; }
.bench-bar-fill { height:100%; border-radius:4px; transition:width .4s ease; }
.bench-times { display:flex; flex-direction:column; align-items:flex-end; min-width:80px; }
.bench-median { font-family:var(--mono); font-weight:700; font-size:14px; }
.bench-range { font-family:var(--mono); font-size:10px; color:var(--text-muted); }

/* ── Tech Stack Detector ────────────────────────────────────── */
.tech-categories { display:grid; grid-template-columns:repeat(auto-fill,minmax(240px,1fr)); gap:14px; }
.tech-category { background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius); padding:14px 16px; }
.tech-cat-header { font-size:12px; font-weight:700; text-transform:uppercase; letter-spacing:.06em; color:var(--text-muted); margin-bottom:10px; }
.tech-items { display:flex; flex-direction:column; gap:6px; }
.tech-item { display:flex; align-items:center; justify-content:space-between; gap:8px; }
.tech-name { font-weight:600; font-size:14px; }
.tech-conf { font-size:10px; padding:2px 8px; border-radius:10px; font-weight:700; }
.conf-high { background:rgba(34,197,94,.15); color:var(--green); }
.conf-med  { background:rgba(234,179,8,.15); color:var(--yellow); }

/* ── Zone File Generator ────────────────────────────────────── */
.zone-form { }
.zone-records-header { display:flex; align-items:center; justify-content:space-between; margin-bottom:14px; flex-wrap:wrap; gap:8px; }
.zone-records-list { display:flex; flex-direction:column; gap:8px; }
.zone-record-row { display:flex; align-items:center; gap:8px; flex-wrap:wrap; }
.tool-select-sm {
  height:38px; background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius);
  color:var(--text); font-size:12px; padding:0 8px; outline:none; flex-shrink:0; color:var(--text);
}
.zr-type { width:80px; }
.zr-remove { height:38px; padding:0 10px; background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius); color:var(--text-muted); cursor:pointer; font-size:12px; flex-shrink:0; transition:all .15s; }
.zr-remove:hover { border-color:var(--red); color:var(--red); }
.template-menu { display:flex; flex-wrap:wrap; gap:8px; padding:12px; background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius); margin-bottom:12px; }
.tmpl-btn { font-size:12px; padding:5px 12px; background:var(--bg3,#0e1117); border:1px solid var(--border); border-radius:4px; color:var(--text); cursor:pointer; transition:all .15s; }
.tmpl-btn:hover { border-color:var(--cyan); color:var(--cyan); }
.tool-btn-secondary {
  height:44px; padding:0 20px; background:transparent; border:1px solid var(--border);
  border-radius:var(--radius); color:var(--text); font-size:14px; font-weight:600;
  cursor:pointer; transition:all .2s; font-family:var(--display);
}
.tool-btn-secondary:hover { border-color:var(--cyan); color:var(--cyan); }

/* ── SSL Chain Visualizer ───────────────────────────────────── */
.chain-visual { display:flex; flex-direction:column; align-items:stretch; gap:0; }
.chain-cert { padding:16px 18px; border:1px solid var(--border); border-radius:var(--radius); background:var(--bg2); }
.chain-cert--root { border-color:rgba(139,92,246,.4); background:rgba(139,92,246,.06); }
.chain-cert--intermediate { border-color:rgba(6,182,212,.3); background:rgba(6,182,212,.05); }
.chain-cert--leaf { border-color:rgba(34,197,94,.35); background:rgba(34,197,94,.05); }
.chain-cert--expired { border-color:rgba(239,68,68,.5) !important; background:rgba(239,68,68,.06) !important; }
.chain-cert--warn { border-color:rgba(234,179,8,.4) !important; background:rgba(234,179,8,.05) !important; }
.chain-cert-header { display:flex; align-items:center; justify-content:space-between; margin-bottom:6px; }
.chain-cert-level { font-size:11px; font-weight:700; text-transform:uppercase; letter-spacing:.06em; color:var(--text-muted); }
.chain-inferred { font-size:10px; background:var(--bg3,#0e1117); border:1px solid var(--border); padding:2px 8px; border-radius:3px; color:var(--text-muted); }
.chain-cert-name { font-family:var(--display); font-size:17px; font-weight:700; }
.chain-cert-note { font-size:12px; color:var(--text-muted); margin-top:4px; }
.chain-cert-details { margin-top:12px; display:flex; flex-direction:column; gap:6px; }
.cert-detail { display:flex; gap:12px; align-items:flex-start; }
.cd-label { font-size:11px; font-weight:700; text-transform:uppercase; letter-spacing:.05em; color:var(--text-muted); min-width:90px; }
.cd-val { font-size:12px; word-break:break-all; }
.chain-connector { display:flex; flex-direction:column; align-items:center; padding:6px 0; }
.chain-arrow { font-size:20px; color:var(--text-muted); line-height:1; }
.chain-signed-by { font-size:10px; color:var(--text-muted); text-transform:uppercase; letter-spacing:.06em; margin-top:2px; }

/* ── Shared result helpers ──────────────────────────────────── */
.result-actions { display:flex; gap:10px; flex-wrap:wrap; }
.action-btn { padding:8px 18px; background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius); color:var(--text); font-size:13px; font-weight:600; cursor:pointer; text-decoration:none; transition:all .15s; }
.action-btn:hover { border-color:var(--cyan); color:var(--cyan); }
.section-heading { font-family:var(--display); font-size:16px; font-weight:700; margin:20px 0 12px; }

/* ── "New" badge + highlight card ──────────────────────────── */
.tool-badge {
  display:inline-block; font-size:9px; font-weight:800; text-transform:uppercase;
  letter-spacing:.06em; background:var(--cyan); color:#000; border-radius:3px;
  padding:2px 5px; margin-left:6px; vertical-align:middle; line-height:1.4;
}
.tool-card--highlight {
  border-color:rgba(6,182,212,.25);
  background:linear-gradient(135deg, rgba(6,182,212,.05) 0%, rgba(6,182,212,.02) 100%);
}
.tool-card--highlight:hover { border-color:var(--cyan); }

/* ── Tool select full-width ─────────────────────────────────── */
.tool-select {
  width:100%; background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius);
  color:var(--text); font-size:14px; padding:0 12px; height:44px; outline:none;
  transition:border-color .2s; cursor:pointer; font-family:var(--sans);
}
.tool-select:focus { border-color:var(--cyan); }
.tool-input-sm {
  height:38px; background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius);
  color:var(--text); font-size:13px; padding:0 10px; outline:none; font-family:var(--mono);
  transition:border-color .2s; flex:1;
}
.tool-input-sm:focus { border-color:var(--cyan); }

/* ═══════════════════════════════════════════════════════════════
   CONTENT PAGES — Learn, Glossary, Service Pages, Comparison
   ═══════════════════════════════════════════════════════════════ */

.content-hero {
  padding: 64px 0 48px;
  border-bottom: 1px solid var(--border);
}
.content-breadcrumb {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.content-breadcrumb a { color: var(--cyan); text-decoration: none; }
.content-breadcrumb a:hover { text-decoration: underline; }
.content-breadcrumb span { color: var(--border); }

.content-hero h1 {
  font-size: clamp(28px, 3.5vw, 48px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 16px;
  max-width: 800px;
}
.content-hero-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.content-tag {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
  padding: 4px 10px;
  border-radius: 20px;
  background: rgba(6,182,212,.12);
  color: var(--cyan);
  border: 1px solid rgba(6,182,212,.2);
}
.content-read-time { font-size: 13px; color: var(--text-muted); }
.content-hero-desc {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 680px;
  line-height: 1.6;
}

/* Content body layout */
.content-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 48px;
  align-items: start;
  padding: 48px 0;
}
@media (max-width: 900px) {
  .content-layout { grid-template-columns: 1fr; }
  .content-sidebar { display: none; }
}

.content-body h2 {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -.5px;
  margin: 40px 0 14px;
  color: var(--text);
}
.content-body h2:first-child { margin-top: 0; }
.content-body h3 {
  font-size: 18px;
  font-weight: 700;
  margin: 28px 0 10px;
  color: var(--text);
}
.content-body p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.content-body strong { color: var(--text); font-weight: 600; }
.content-body ul, .content-body ol {
  padding-left: 20px;
  margin-bottom: 16px;
}
.content-body li {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.content-body code {
  font-family: var(--mono);
  font-size: 13px;
  background: rgba(6,182,212,.1);
  color: var(--cyan);
  padding: 2px 6px;
  border-radius: 3px;
}
.content-body pre {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  overflow-x: auto;
  margin: 20px 0;
}
.content-body pre code {
  background: none;
  padding: 0;
  font-size: 13px;
  color: var(--cyan);
}
.content-body a {
  color: var(--cyan);
  text-decoration: none;
}
.content-body a:hover { text-decoration: underline; }

.content-callout {
  background: rgba(6,182,212,.06);
  border: 1px solid rgba(6,182,212,.2);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin: 20px 0;
}
.content-callout p { margin: 0; font-size: 14px; }
.content-callout strong { color: var(--cyan); }

.content-warning {
  background: rgba(234,179,8,.05);
  border: 1px solid rgba(234,179,8,.25);
  border-left: 3px solid var(--yellow);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin: 20px 0;
}
.content-warning p { margin: 0; font-size: 14px; color: var(--text-muted); }

/* Step-by-step */
.steps { display: flex; flex-direction: column; gap: 0; margin: 24px 0; }
.step {
  display: flex;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}
.step:last-child { border-bottom: none; }
.step-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(6,182,212,.15);
  border: 1px solid rgba(6,182,212,.3);
  color: var(--cyan);
  font-weight: 800;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}
.step-body h3 { margin: 0 0 8px; font-size: 16px; }
.step-body p { margin: 0; font-size: 14px; line-height: 1.6; }

/* DNS record display in content */
.dns-record-display {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin: 16px 0;
}
.dns-record-display table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  font-family: var(--mono);
}
.dns-record-display th {
  background: var(--bg3, #0e1117);
  padding: 8px 14px;
  text-align: left;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}
.dns-record-display td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  vertical-align: top;
}
.dns-record-display tr:last-child td { border-bottom: none; }
.dns-record-display td:first-child { color: var(--cyan); font-weight: 600; }
.dns-record-display td code { background: none; padding: 0; color: var(--text); }

/* Sidebar */
.content-sidebar { position: sticky; top: 80px; } /* desktop only - hidden on mobile via media query */
.sidebar-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}
.sidebar-card-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--text-muted);
  margin-bottom: 14px;
}
.sidebar-tool-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: var(--bg3, #0e1117);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  transition: all .15s;
  margin-bottom: 8px;
}
.sidebar-tool-link:hover { border-color: var(--cyan); color: var(--cyan); }
.sidebar-tool-link:last-child { margin-bottom: 0; }
.sidebar-related-link {
  display: block;
  font-size: 13px;
  color: var(--cyan);
  text-decoration: none;
  padding: 5px 0;
  border-bottom: 1px solid var(--border);
  line-height: 1.4;
}
.sidebar-related-link:last-child { border-bottom: none; }
.sidebar-related-link:hover { text-decoration: underline; }

/* Comparison table */
.compare-table-wrap { overflow-x: auto; margin: 20px 0; }
.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.compare-table th {
  padding: 12px 16px;
  background: var(--bg2);
  border: 1px solid var(--border);
  font-weight: 700;
  text-align: left;
  font-size: 13px;
}
.compare-table th.highlight-col {
  background: rgba(6,182,212,.1);
  color: var(--cyan);
  border-color: rgba(6,182,212,.3);
}
.compare-table td {
  padding: 11px 16px;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 13px;
}
.compare-table td.highlight-col {
  background: rgba(6,182,212,.04);
  border-color: rgba(6,182,212,.2);
  color: var(--text);
  font-weight: 500;
}
.compare-yes { color: var(--green); font-weight: 700; }
.compare-no  { color: var(--red); }
.compare-partial { color: var(--yellow); }

/* Glossary */
.glossary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
  margin-top: 24px;
}
.glossary-term-link {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  text-decoration: none;
  transition: all .15s;
}
.glossary-term-link:hover { border-color: var(--cyan); color: var(--cyan); }
.glossary-term-link:hover span:last-child { color: var(--cyan); opacity:.7; }
.glossary-term-link span:first-child {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -.2px;
}
.glossary-term-link span:last-child {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.4;
  font-weight: 400;
}

/* Hub / index pages */
.content-hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
  margin-top: 24px;
}
.hub-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  text-decoration: none;
  color: var(--text);
  transition: all .2s;
  display: flex;
  flex-direction: column;
}
.hub-card:hover { border-color: var(--cyan); transform: translateY(-2px); }
.hub-card-tag { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing:.07em; color: var(--cyan); margin-bottom: 10px; }
.hub-card-title { font-size: 16px; font-weight: 700; margin-bottom: 8px; letter-spacing: -.3px; }
.hub-card-desc { font-size: 13px; color: var(--text-muted); line-height: 1.5; flex: 1; }
.hub-card-arrow { font-size: 12px; color: var(--cyan); margin-top: 14px; font-weight: 600; }

/* ToC */
.toc {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin-bottom: 32px;
}
.toc-title { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; color: var(--text-muted); margin-bottom: 10px; }
.toc ol { padding-left: 16px; margin: 0; }
.toc li { font-size: 13px; margin-bottom: 5px; }
.toc a { color: var(--cyan); text-decoration: none; }
.toc a:hover { text-decoration: underline; }