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

:root {
  --bg: #f8fafb;
  --bg-alt: #ffffff;
  --bg-code: #eef2f6;
  --text: #1e293b;
  --text-muted: #475569;
  --accent: #0369a1;
  --accent-dark: #075985;
  --accent-light: #e0f2fe;
  --border: #e2e8f0;
  --green: #047857;
  --orange: #f59e0b;
  --red: #ef4444;
  --mono: 'SF Mono', 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* --- NAV --- */
nav {
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo {
  font-family: var(--mono);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.logo-icon {
  width: 32px;
  height: 32px;
  background: var(--accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
}
.nav-links { display: flex; gap: 1.5rem; align-items: center; list-style: none; }
.nav-links > li > a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links > li > a:hover { color: var(--accent); }

/* Dropdown */
.nav-dropdown { position: relative; }
.nav-dropdown-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  font-family: inherit;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0;
  transition: color 0.2s;
}
.nav-dropdown-btn:hover { color: var(--accent); }
.nav-chevron { transition: transform 0.2s; }
.nav-dropdown.open .nav-chevron { transform: rotate(180deg); }
.nav-dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.12), 0 4px 12px rgba(0,0,0,0.06);
  padding: 1.25rem 1rem;
  min-width: 720px;
  z-index: 200;
  display: none;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
}
.nav-dropdown.open .nav-dropdown-menu { display: grid; }
.nav-dropdown-group { padding: 0.5rem; }
a.nav-dropdown-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.3rem 0.5rem;
  margin-bottom: 0.35rem;
  border-radius: 6px;
  transition: color 0.15s;
}
a.nav-dropdown-label:hover {
  color: var(--accent);
}
.nav-dropdown-menu a {
  display: block;
  padding: 0.45rem 0.5rem;
  color: var(--text);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  border-radius: 6px;
  transition: background 0.15s, color 0.15s;
}
.nav-dropdown-menu a:hover {
  background: var(--accent-light);
  color: var(--accent-dark);
}

.nav-tg {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--accent-light);
  color: var(--accent-dark) !important;
  padding: 0.4rem 1rem;
  border-radius: 6px;
  font-weight: 600 !important;
  transition: background 0.2s !important;
}
.nav-tg:hover { background: #bae6fd; }

.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  margin: 5px 0;
  transition: 0.3s;
}

/* --- HERO --- */
.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 5rem 2rem 4rem;
  text-align: center;
}
.hero-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--accent-dark);
  background: var(--accent-light);
  padding: 0.3rem 1rem;
  border-radius: 99px;
  margin-bottom: 1.5rem;
  border: 1px solid #bae6fd;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}
.hero h1 span { color: var(--accent); }
.hero p {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto 2.5rem;
}

/* --- STATUS DOTS --- */
.status-row {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}
.status-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  font-family: var(--mono);
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
}
.status-dot.warn { background: var(--orange); }
.status-dot.err { background: var(--red); }

/* --- LOOKUP TOOL --- */
.tool-section {
  max-width: 800px;
  margin: 0 auto 4rem;
  padding: 0 2rem;
}
.tool-box {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}
.tool-box--cta {
  text-align: center;
  padding: 3rem 2rem;
}
.tool-box--cta h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.tool-box--cta p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}
.tool-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.tool-tab {
  font-family: var(--mono);
  font-size: 0.8rem;
  padding: 0.45rem 1rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s;
  font-weight: 500;
}
.tool-tab:hover { border-color: var(--accent); color: var(--accent); }
.tool-tab.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.tool-input-row {
  display: flex;
  gap: 0.75rem;
}
.tool-input {
  flex: 1;
  font-family: var(--mono);
  font-size: 0.95rem;
  padding: 0.8rem 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  outline: none;
  transition: border-color 0.2s;
}
.tool-input:focus { border-color: var(--accent); }
.tool-input::placeholder { color: #64748b; }
.tool-btn {
  font-family: var(--mono);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.8rem 1.8rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s;
  white-space: nowrap;
}
.tool-btn:hover { background: var(--accent-dark); }
.tool-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.75rem;
  font-family: var(--mono);
}
.tool-hint--error {
  color: var(--red);
}

/* --- TOOL PAGE --- */
.tool-page {
  max-width: 900px;
  margin: 0 auto;
  padding: 1rem 2rem 4rem;
}
.tool-page-header {
  margin-bottom: 2rem;
}
.tool-page-header h1 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}
.tool-page-header p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* --- Tool Page Content (below-the-fold educational content) --- */
.tool-page-content {
  margin-top: 3rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
  font-size: 1.02rem;
  line-height: 1.75;
  color: var(--text);
}
.tool-page-content h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 2.5rem 0 0.75rem;
  letter-spacing: -0.01em;
}
.tool-page-content h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 2rem 0 0.5rem;
}
.tool-page-content h4 {
  font-size: 1rem;
  font-weight: 700;
  margin: 1.5rem 0 0.5rem;
}
.tool-page-content p {
  margin-bottom: 1.15rem;
}
.tool-page-content a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.tool-page-content a:hover { color: var(--accent-dark); }
.tool-page-content ul,
.tool-page-content ol {
  margin-bottom: 1.15rem;
  padding-left: 1.5rem;
}
.tool-page-content li { margin-bottom: 0.35rem; }
.tool-page-content blockquote {
  border-left: 4px solid var(--accent);
  padding: 0.75rem 1.25rem;
  margin: 1.5rem 0;
  background: var(--accent-light);
  border-radius: 0 8px 8px 0;
}
.tool-page-content blockquote p { margin-bottom: 0; }
.tool-page-content code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--bg-code);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  border: 1px solid var(--border);
}
.tool-page-content pre {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem;
  overflow-x: auto;
  margin: 1.5rem 0;
  line-height: 1.5;
}
.tool-page-content pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.85rem;
}
.tool-page-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9rem;
}
.tool-page-content th {
  text-align: left;
  padding: 0.6rem 1rem;
  background: var(--bg);
  border-bottom: 2px solid var(--border);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}
.tool-page-content td {
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--border);
}
.tool-page-content img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 1.5rem 0;
}
.tool-page-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
}

/* --- FEATURES --- */
/* --- TOOLS SHOWCASE (alternating rows) --- */
.tools-showcase {
  max-width: 1100px;
  margin: 0 auto;
  padding: 4rem 2rem 2rem;
}
.tools-showcase-header {
  text-align: center;
  margin-bottom: 4rem;
}
.tools-showcase-header h2 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.tools-showcase-header p { color: var(--text-muted); }

.showcase-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  padding: 3rem 0;
  border-bottom: 1px solid var(--border);
}
.showcase-row:last-child { border-bottom: none; }
.showcase-row--reverse { direction: rtl; }
.showcase-row--reverse > * { direction: ltr; }

.showcase-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-dark);
  background: var(--accent-light);
  padding: 0.25rem 0.75rem;
  border-radius: 99px;
  margin-bottom: 1rem;
}
.showcase-text h3 {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 0.75rem;
}
.showcase-text p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
  margin-bottom: 1.25rem;
}
.showcase-link {
  display: inline-block;
  padding: 0.55rem 1.25rem;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
  border-radius: 8px;
  transition: background 0.15s, transform 0.1s;
}
.showcase-link:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-1px);
}
.showcase-links {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

/* Showcase visuals */
.showcase-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.75rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

/* Full report visual */
.showcase-score {
  text-align: center;
  margin-bottom: 1.25rem;
}
.showcase-score-num {
  display: block;
  font-size: 3rem;
  font-weight: 800;
  color: var(--green);
  line-height: 1;
}
.showcase-score-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}
.showcase-checks {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
}
.showcase-check {
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.35rem 0.9rem;
  border-radius: 6px;
  border: 1px solid var(--border);
}
.showcase-check--pass { background: #dcfce7; color: #15803d; border-color: #bbf7d0; }
.showcase-check--warn { background: #fef3c7; color: #b45309; border-color: #fde68a; }

/* SPF code visual */
.showcase-card--code code {
  display: block;
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--text);
  background: var(--bg-code);
  padding: 1rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  margin-bottom: 1.25rem;
  line-height: 1.6;
}
.showcase-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.showcase-bar-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  white-space: nowrap;
  font-weight: 500;
}
.showcase-bar-track {
  flex: 1;
  height: 6px;
  background: var(--bg-code);
  border-radius: 3px;
  overflow: hidden;
}
.showcase-bar-fill {
  height: 100%;
  background: var(--green);
  border-radius: 3px;
}
.showcase-bar-val {
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--green);
}

/* MX table visual */
.showcase-card--table { padding: 0; overflow: hidden; }
.showcase-mx-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.9rem 1.5rem;
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 0.82rem;
}
.showcase-mx-row:last-child { border-bottom: none; }
.showcase-mx-pri {
  font-weight: 700;
  color: var(--accent);
  min-width: 1.5rem;
}
.showcase-mx-host { color: var(--text); }

/* Header hops visual */
.showcase-card--hops { position: relative; }
.showcase-hop {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 0.6rem 0;
  position: relative;
}
.showcase-hop:not(:last-child) { padding-bottom: 1.25rem; }
.showcase-hop:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 5px;
  top: 22px;
  bottom: 0;
  width: 2px;
  background: var(--border);
}
.showcase-hop-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  margin-top: 3px;
}
.showcase-hop-dot--end { background: var(--green); }
.showcase-hop-server {
  display: block;
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
}
.showcase-hop-detail {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Keep features-header for reuse on blog section */
.features-header {
  text-align: center;
  margin-bottom: 3rem;
}
.features-header h2 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.features-header p { color: var(--text-muted); }

/* --- HOME BLOG SECTION --- */
.home-blog {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem 5rem;
}
.home-blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}
.home-blog-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.75rem;
  text-decoration: none;
  color: inherit;
  display: block;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.home-blog-card:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 12px rgba(14, 165, 233, 0.08);
}
.home-blog-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}
.home-blog-category {
  background: var(--bg-code);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.home-blog-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  line-height: 1.35;
}
.home-blog-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.home-blog-more {
  text-align: center;
  margin-top: 2rem;
}
.home-blog-link {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
}
.home-blog-link:hover { color: var(--accent-dark); text-decoration: underline; }

/* --- TELEGRAM CTA --- */
.tg-cta {
  max-width: 1200px;
  margin: 0 auto;
  padding: 3rem 2rem 4rem;
}
.tg-box {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 3rem;
  text-align: center;
}
.tg-box h2 { font-size: 1.6rem; font-weight: 700; margin-bottom: 0.75rem; }
.tg-box p { color: var(--text-muted); margin-bottom: 2rem; max-width: 500px; margin-left: auto; margin-right: auto; }
.tg-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: #229ED9;
  color: #fff;
  text-decoration: none;
  padding: 0.85rem 2rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  transition: background 0.2s;
}
.tg-btn:hover { background: #1a8bc4; }
.tg-btn svg { width: 20px; height: 20px; fill: currentColor; }

/* --- FOOTER --- */
footer {
  border-top: 1px solid var(--border);
  padding: 2rem;
  margin-top: 2rem;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-left {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--text-muted);
}
.footer-links { display: flex; gap: 1.5rem; list-style: none; flex-wrap: wrap; }
.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--accent); }

/* --- RESULTS --- */
.results-section {
  margin-top: 2rem;
}
.results-section h2 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--text);
}
.result-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1rem;
}
.result-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1rem;
}
.result-card h4 {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin: 1.25rem 0 0.75rem;
}

.raw-record {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  font-family: var(--mono);
  font-size: 0.85rem;
  word-break: break-all;
  line-height: 1.6;
  overflow-x: auto;
}
.raw-record code {
  font-family: inherit;
}

.result-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.result-table th {
  text-align: left;
  padding: 0.6rem 1rem;
  background: var(--bg);
  border-bottom: 2px solid var(--border);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}
.result-table td {
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--border);
}
.result-table code {
  font-family: var(--mono);
  font-size: 0.85rem;
}
.record-text {
  font-size: 0.8rem;
  color: var(--text-muted);
}
.text-error {
  color: var(--red);
  font-size: 0.85rem;
}

.mechanism-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.mechanism-tag {
  font-family: var(--mono);
  font-size: 0.8rem;
  background: var(--bg-code);
  border: 1px solid var(--border);
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
}

.spf-stats {
  display: flex;
  gap: 2rem;
  margin-top: 1.25rem;
  flex-wrap: wrap;
}
.stat {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.stat-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}
.stat-value {
  font-family: var(--mono);
  font-size: 0.95rem;
  font-weight: 600;
}
.stat-value--pass { color: var(--green); }
.stat-value--warning { color: var(--orange); }
.stat-value--error { color: var(--red); }

details {
  cursor: pointer;
}
details summary {
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.5rem 0;
  color: var(--accent-dark);
}
details summary:hover {
  color: var(--accent);
}
details[open] summary {
  margin-bottom: 1rem;
}

/* --- ADVICE CARDS --- */
.advice-section {
  margin-top: 1.5rem;
}
.advice-section h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1rem;
}
.advice-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  margin-bottom: 0.75rem;
  border-left: 4px solid var(--border);
}
.advice-card--pass { border-left-color: var(--green); }
.advice-card--info { border-left-color: var(--accent); }
.advice-card--warning { border-left-color: var(--orange); }
.advice-card--error { border-left-color: var(--red); }

.advice-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.4rem;
}
.advice-severity {
  font-family: var(--mono);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  white-space: nowrap;
}
.advice-severity--pass { background: #d1fae5; color: #065f46; }
.advice-severity--info { background: var(--accent-light); color: var(--accent-dark); }
.advice-severity--warning { background: #fef3c7; color: #92400e; }
.advice-severity--error { background: #fee2e2; color: #991b1b; }

.advice-title {
  font-weight: 600;
  font-size: 0.9rem;
}
.advice-detail {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 0.25rem;
}
.advice-fix {
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--text);
}

/* --- MX RESULTS HEADER --- */
.mx-results-header {
  margin-bottom: 1.5rem;
}
.mx-results-header h2 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.domain-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 1.1rem;
  font-weight: 600;
  background: var(--bg-code);
  border: 1px solid var(--border);
  padding: 0.35rem 1rem;
  border-radius: 6px;
  margin-bottom: 0.75rem;
}
.report-header-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.report-header-row .domain-badge { margin-bottom: 0; }
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-dark);
  background: var(--accent-light);
  border: 1px solid transparent;
  padding: 0.35rem 0.9rem;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.share-btn:hover { background: #bae6fd; }
.share-btn--copied {
  background: #d1fae5;
  color: #065f46;
}
.quick-nav {
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.quick-nav a {
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-dark);
  background: var(--accent-light);
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  text-decoration: none;
  transition: background 0.2s;
}
.quick-nav a:hover {
  background: #bae6fd;
}
.dkim-prefill-context {
  margin-top: 1.5rem;
}
.quick-nav .current {
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  background: var(--text);
  color: var(--bg-alt);
  cursor: default;
  pointer-events: none;
}

/* --- TAGS --- */
.tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.1rem 0.45rem;
  border-radius: 3px;
  vertical-align: middle;
  white-space: nowrap;
}
.tag--pass { background: #d1fae5; color: #065f46; }
.tag--warning { background: #fef3c7; color: #92400e; }
.tag--error { background: #fee2e2; color: #991b1b; }

/* --- IP LINES --- */
.ip-line {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.2rem 0;
  flex-wrap: wrap;
}
.ip-version {
  font-family: var(--mono);
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
  background: var(--bg-code);
  color: var(--text-muted);
}
.ip-version--4 { background: var(--accent-light); color: var(--accent-dark); }
.ip-version--6 { background: #ede9fe; color: #6d28d9; }
.ptr-record {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: var(--mono);
}

/* --- PROVIDER BADGE --- */
.provider-badge {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
}

/* --- SMTP BANNER --- */
.smtp-banner {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
  word-break: break-all;
  line-height: 1.4;
}
.smtp-error {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--red);
  margin-top: 0.25rem;
}

/* --- CONTEXT GRID --- */
.context-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
}
.context-item h4 {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}
.context-item code {
  font-family: var(--mono);
  font-size: 0.85rem;
}

/* --- TABLE SCROLL --- */
.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

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

/* --- DMARC EXPLANATIONS --- */
.dmarc-explain {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.6;
}
.dmarc-explain strong {
  color: var(--text);
}
.dmarc-explain code {
  font-family: var(--mono);
  font-size: 0.78rem;
  background: var(--bg-code);
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
}
.dmarc-report-section {
  margin-top: 0.5rem;
  margin-bottom: 1.25rem;
}
.dmarc-report-list {
  font-family: var(--mono);
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
}

/* --- HEADER ANALYZER --- */
.tool-textarea {
  width: 100%;
  font-family: var(--mono);
  font-size: 0.82rem;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  outline: none;
  resize: vertical;
  min-height: 160px;
  line-height: 1.5;
  transition: border-color 0.2s;
}
.tool-textarea:focus { border-color: var(--accent); }
.tool-textarea::placeholder { color: #64748b; }
.tool-btn--full {
  width: 100%;
  margin-top: 0.75rem;
}

.auth-badges {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}
.auth-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-alt);
  flex: 1;
  min-width: 120px;
}
.auth-badge-label {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}
.auth-badge-result {
  font-family: var(--mono);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
}
.auth-badge--pass { border-left: 4px solid var(--green); }
.auth-badge--pass .auth-badge-result { color: var(--green); }
.auth-badge--fail { border-left: 4px solid var(--red); }
.auth-badge--fail .auth-badge-result { color: var(--red); }
.auth-badge--missing { border-left: 4px solid var(--border); }
.auth-badge--missing .auth-badge-result { color: var(--text-muted); }

.hop-total-delay {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}
.hop-delay {
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 600;
}
.hop-delay--fast { color: var(--green); }
.hop-delay--medium { color: var(--orange); }
.hop-delay--slow { color: var(--red); }

.header-meta-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.4rem 1.25rem;
  align-items: baseline;
}
.header-meta-label {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  white-space: nowrap;
}
.header-meta-value {
  font-size: 0.88rem;
  min-width: 0;
  overflow-wrap: break-word;
}
.header-meta-value code {
  font-family: var(--mono);
  font-size: 0.84rem;
}

.auth-detail-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0;
  flex-wrap: wrap;
}

.dkim-sig-divider {
  border-top: 1px solid var(--border);
  padding-top: 1rem;
  margin-top: 1rem;
}

/* --- ANALYZE REPORT --- */
.tool-page--wide { max-width: 960px; }

.health-summary {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1rem;
}

/* --- Score Ring --- */
.score-ring {
  position: relative;
  width: 110px;
  height: 110px;
  flex-shrink: 0;
}
.score-ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.score-ring-bg {
  fill: none;
  stroke: var(--bg-code);
  stroke-width: 8;
}
.score-ring-fill {
  fill: none;
  stroke-width: 8;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.8s ease;
}
.score-ring--pass .score-ring-fill { stroke: var(--green); }
.score-ring--warning .score-ring-fill { stroke: var(--orange); }
.score-ring--error .score-ring-fill { stroke: var(--red); }
.score-ring-text {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.score-ring-num {
  font-family: var(--mono);
  font-size: 1.8rem;
  font-weight: 800;
  line-height: 1;
  color: var(--text);
}
.score-ring-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* --- Health Right Column --- */
.health-right {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  min-width: 0;
}
.health-verdict {
  font-family: var(--mono);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 0.3rem 0.9rem;
  border-radius: 6px;
  white-space: nowrap;
  display: inline-block;
  width: fit-content;
}
.health-verdict--pass { background: #d1fae5; color: #065f46; }
.health-verdict--warning { background: #fef3c7; color: #92400e; }
.health-verdict--error { background: #fee2e2; color: #991b1b; }

.health-counters {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.health-counter {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--mono);
  font-size: 0.82rem;
}
.health-counter-num { font-weight: 700; }
.health-counter-label { color: var(--text-muted); }
.health-counter--pass .health-counter-num { color: var(--green); }
.health-counter--info .health-counter-num { color: var(--accent); }
.health-counter--warning .health-counter-num { color: var(--orange); }
.health-counter--error .health-counter-num { color: var(--red); }

.protocol-nav {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}
.protocol-nav-item {
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 1rem;
  border-radius: 6px;
  background: var(--bg-alt);
  border: 2px solid var(--border);
  color: var(--text);
  text-decoration: none;
  transition: border-color 0.2s, background 0.2s;
}
.protocol-nav-item:hover { background: var(--bg-code); }
.protocol-nav-item--pass { border-color: var(--green); }
.protocol-nav-item--warning { border-color: var(--orange); }
.protocol-nav-item--error { border-color: var(--red); }

.report-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1rem;
  scroll-margin-top: 80px;
}
.report-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}
.report-card-header h3 {
  font-size: 1rem;
  font-weight: 700;
  margin: 0;
}
.report-deep-link {
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-dark);
  text-decoration: none;
  white-space: nowrap;
}
.report-deep-link:hover { color: var(--accent); }

.report-stats {
  display: flex;
  gap: 2rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.advice-card--compact {
  padding: 0.6rem 1rem;
  margin-bottom: 0.5rem;
  margin-top: 0.75rem;
}
.advice-card--compact .advice-header { margin-bottom: 0; }

.dkim-selectors-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.dkim-selector-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.dkim-selector-badge {
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 600;
  background: var(--accent-light);
  color: var(--accent-dark);
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  text-decoration: none;
  transition: background 0.2s;
}
.dkim-selector-badge:hover { background: #bae6fd; }

/* --- SKELETON LOADER --- */
@keyframes shimmer {
  0% { background-position: -400px 0; }
  100% { background-position: 400px 0; }
}
.skeleton-results {
  margin-top: 2rem;
}
.skeleton-line {
  border-radius: 4px;
  background: linear-gradient(90deg, var(--bg-code) 25%, #e8edf2 37%, var(--bg-code) 63%);
  background-size: 800px 100%;
  animation: shimmer 1.5s ease infinite;
}
.skeleton-line--h2 {
  width: 120px;
  height: 22px;
  margin-bottom: 0.5rem;
}
.skeleton-line--badge {
  width: 180px;
  height: 32px;
  margin-bottom: 0.75rem;
}
.skeleton-nav {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}
.skeleton-line--pill {
  width: 56px;
  height: 24px;
  border-radius: 4px;
}
.skeleton-line--h3 {
  width: 140px;
  height: 16px;
  margin-bottom: 1rem;
}
.skeleton-header {
  margin-bottom: 1.5rem;
}
.skeleton-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1rem;
}
.skeleton-table {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.skeleton-row {
  display: flex;
  gap: 1rem;
  align-items: center;
}
.skeleton-cell {
  height: 14px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--bg-code) 25%, #e8edf2 37%, var(--bg-code) 63%);
  background-size: 800px 100%;
  animation: shimmer 1.5s ease infinite;
}
.skeleton-cell--sm { width: 48px; }
.skeleton-cell--md { width: 96px; }
.skeleton-cell--lg { flex: 1; }
.skeleton-context {
  display: flex;
  gap: 1.5rem;
}

/* --- HTMX LOADING --- */
.htmx-indicator {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 2rem;
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 0.9rem;
}
.htmx-request .htmx-indicator,
.htmx-indicator.htmx-request {
  display: flex;
}
.htmx-request .htmx-indicator.htmx-indicator--skeleton,
.htmx-indicator--skeleton.htmx-request {
  display: block;
}
.loading-spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* --- IP REPUTATION --- */
.risk-badge {
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.3rem 0.9rem;
  border-radius: 6px;
  white-space: nowrap;
  display: inline-block;
  width: fit-content;
  letter-spacing: 0.05em;
}
.risk-badge--LOW { background: #d1fae5; color: #065f46; }
.risk-badge--MEDIUM { background: #fef3c7; color: #92400e; }
.risk-badge--HIGH { background: #fee2e2; color: #991b1b; }
.risk-badge--UNKNOWN { background: var(--bg-code); color: var(--text-muted); }
.score-ring--insufficient .score-ring-bg { stroke: var(--border); }

.ip-detail-rdns {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: 1.25rem;
}
.ip-detail-rdns .stat-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}
.ip-detail-rdns-value {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.ip-detail-rdns code {
  font-family: var(--mono);
  font-size: 0.9rem;
  font-weight: 600;
  word-break: break-all;
}
.ip-detail-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}
.ip-detail-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.ip-detail-item .stat-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}
.ip-detail-item .stat-value {
  font-family: var(--mono);
  font-size: 0.9rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.impact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}
.impact-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 1rem;
  background: var(--bg);
  border-radius: 6px;
  border: 1px solid var(--border);
}
.impact-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text);
}
.impact-badge {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.15rem 0.6rem;
  border-radius: 4px;
  white-space: nowrap;
}
.impact-badge--none { background: var(--bg-code); color: var(--text-muted); }
.impact-badge--low { background: #d1fae5; color: #065f46; }
.impact-badge--medium { background: #fef3c7; color: #92400e; }
.impact-badge--high { background: #fee2e2; color: #991b1b; }

.trend-chart {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.trend-chart svg {
  width: 100%;
  height: auto;
  min-width: 400px;
  display: block;
}
.trend-labels {
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
  padding: 0 0.25rem;
}

/* --- BLOG --- */
.blog-page {
  max-width: 900px;
  margin: 0 auto;
  padding: 3rem 2rem 4rem;
}
.blog-header {
  margin-bottom: 2rem;
}
.blog-header h1 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}
.blog-header p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* --- Blog Category Filter --- */
.blog-categories {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}
.blog-category-tag {
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text-muted);
  text-decoration: none;
  transition: all 0.2s;
}
.blog-category-tag:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.blog-category-tag--active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.blog-category-count {
  font-size: 0.7rem;
  opacity: 0.7;
}

/* --- Blog Card Grid --- */
.blog-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.blog-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem 2rem;
  text-decoration: none;
  color: inherit;
  display: block;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.blog-card:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 12px rgba(14, 165, 233, 0.08);
}
.blog-card h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  line-height: 1.3;
}
.blog-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  line-height: 1.3;
}
.blog-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}
.blog-card--compact {
  padding: 1.25rem 1.5rem;
}

/* --- Blog Card Meta --- */
.blog-card-meta {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
  flex-wrap: wrap;
}
.blog-card-category {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-dark);
  background: var(--accent-light);
  padding: 0.15rem 0.55rem;
  border-radius: 4px;
  text-decoration: none;
}
.blog-card-category:hover {
  background: #bae6fd;
}
.blog-card-dot {
  color: var(--border);
}

/* --- Blog Tags --- */
.blog-card-tags {
  display: flex;
  gap: 0.4rem;
  margin-top: 0.75rem;
  flex-wrap: wrap;
}
.blog-tag {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-radius: 3px;
  background: var(--bg-code);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

/* --- Blog Post Detail --- */
.blog-post {
  max-width: 760px;
  margin: 0 auto;
  padding: 1rem 2rem 4rem;
}
.blog-post-header {
  margin-bottom: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}
.blog-post-header h1 {
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}
.blog-post-meta {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  flex-wrap: wrap;
}
.blog-post-description {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1rem;
}

/* --- Blog Post Content (Markdown) --- */
.blog-post-content {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--text);
}
.blog-post-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 2.5rem 0 1rem;
  letter-spacing: -0.01em;
}
.blog-post-content h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 2rem 0 0.75rem;
}
.blog-post-content h4 {
  font-size: 1rem;
  font-weight: 700;
  margin: 1.5rem 0 0.5rem;
}
.blog-post-content p {
  margin-bottom: 1.25rem;
}
.blog-post-content a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.blog-post-content a:hover {
  color: var(--accent-dark);
}
.blog-post-content ul,
.blog-post-content ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}
.blog-post-content li {
  margin-bottom: 0.4rem;
}
.blog-post-content blockquote {
  border-left: 4px solid var(--accent);
  padding: 0.75rem 1.25rem;
  margin: 1.5rem 0;
  background: var(--accent-light);
  border-radius: 0 8px 8px 0;
  color: var(--text);
}
.blog-post-content blockquote p {
  margin-bottom: 0;
}
.blog-post-content code {
  font-family: var(--mono);
  font-size: 0.9em;
  background: var(--bg-code);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  border: 1px solid var(--border);
}
.blog-post-content pre {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem;
  overflow-x: auto;
  margin: 1.5rem 0;
  line-height: 1.5;
}
.blog-post-content pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.85rem;
}
.blog-post-content img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 1.5rem 0;
}
.blog-post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9rem;
}
.blog-post-content th {
  text-align: left;
  padding: 0.6rem 1rem;
  background: var(--bg);
  border-bottom: 2px solid var(--border);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}
.blog-post-content td {
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--border);
}
.blog-post-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
}

/* --- Post Navigation (Prev/Next) --- */
.blog-post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}
.blog-post-nav-link {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 1rem 0;
  background: none;
  border: none;
  border-radius: 0;
  text-decoration: none;
  color: inherit;
}
.blog-post-nav-link:hover .blog-post-nav-label {
  color: var(--accent);
}
.blog-post-nav-link:hover .blog-post-nav-title {
  color: var(--accent-dark);
}
.blog-post-nav-link--next {
  text-align: right;
}
.blog-post-nav-label {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-dark);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.blog-post-nav-title {
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.3;
}

/* --- Related Posts --- */
.blog-related {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}
.blog-related h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}
.blog-related-grid {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* --- Blog Pagination --- */
.blog-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}
.blog-pagination-btn {
  font-family: var(--mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-dark);
  text-decoration: none;
  padding: 0.4rem 0;
}
.blog-pagination-btn:hover {
  color: var(--accent);
}
.blog-pagination-info {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* --- MAIL TESTER --- */
.mail-test-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  display: block;
}
.mail-test-copy-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.mail-test-email {
  font-family: var(--mono);
  font-size: 1.1rem;
  font-weight: 600;
  background: var(--bg-code);
  border: 1px solid var(--border);
  padding: 0.6rem 1rem;
  border-radius: 8px;
  flex: 1;
  min-width: 0;
  overflow-wrap: break-word;
}
.tool-btn--sm {
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.6rem 1.2rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s;
  white-space: nowrap;
}
.tool-btn--sm:hover { background: var(--accent-dark); }

.mail-test-waiting {
  text-align: center;
  padding: 3rem 1rem;
}
.mail-test-waiting h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.mail-test-waiting p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}
.mail-test-waiting code {
  font-family: var(--mono);
  font-size: 0.85rem;
  background: var(--bg-code);
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
}
.mail-test-spinner {
  display: flex;
  justify-content: center;
  margin-bottom: 1.5rem;
}
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.tab-panel {
  display: none;
}
.tab-panel.active {
  display: block;
}

.mail-test-iframe {
  width: 100%;
  min-height: 400px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
}
.mail-test-raw {
  font-family: var(--mono);
  font-size: 0.8rem;
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-all;
  line-height: 1.5;
  max-height: 600px;
  overflow-y: auto;
}

.error-message {
  color: var(--red);
  font-family: var(--mono);
  font-size: 0.9rem;
  font-weight: 600;
}

/* --- GENERATOR FORMS --- */
.generator-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.form-group label:first-child {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
}
.form-group label:first-child code {
  font-family: var(--mono);
  font-size: 0.78rem;
  background: var(--bg-code);
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
}
.form-hint {
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--text-muted);
}
.form-row {
  display: flex;
  gap: 1.25rem;
}
.form-group--half {
  flex: 1;
  min-width: 0;
}
.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 0.5rem 0;
}
.checkbox-group label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 400 !important;
  color: var(--text);
  cursor: pointer;
}
.checkbox-group label code {
  font-family: var(--mono);
  font-size: 0.78rem;
  background: var(--bg-code);
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
}
.checkbox-group input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  flex-shrink: 0;
}
.radio-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 0.5rem 0;
}
.radio-group label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 400 !important;
  color: var(--text);
  cursor: pointer;
}
.radio-group label code {
  font-family: var(--mono);
  font-size: 0.78rem;
  background: var(--bg-code);
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
}
.radio-group input[type="radio"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  flex-shrink: 0;
}

/* --- RECORD OUTPUT --- */
.record-output {
  position: relative;
  margin-top: 1rem;
  background: #0d1117;
  border: 1px solid #30363d;
  border-radius: 8px;
  padding: 1.25rem;
}
.record-output pre {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-all;
  line-height: 1.6;
}
.record-output pre code {
  font-family: var(--mono);
  font-size: 0.88rem;
  color: #e6edf3;
  background: none;
  border: none;
  padding: 0;
}
.copy-btn {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: #e6edf3;
  background: #21262d;
  border: 1px solid #30363d;
  border-radius: 6px;
  padding: 0.35rem 0.9rem;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}
.copy-btn:hover {
  background: #30363d;
  border-color: #8b949e;
}
.copy-btn--copied {
  background: #238636;
  border-color: #3fb950;
  color: #fff;
}

.record-dns-name {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}
.record-dns-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  white-space: nowrap;
}
.record-dns-name code {
  font-family: var(--mono);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent-dark);
  background: var(--accent-light);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
}

.record-instructions {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}
.record-instructions h3 {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}
.record-instructions ol {
  padding-left: 1.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.8;
}
.record-instructions ol li {
  margin-bottom: 0.25rem;
}
.record-instructions strong {
  color: var(--text);
}
.record-instructions code {
  font-family: var(--mono);
  font-size: 0.8rem;
  background: var(--bg-code);
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
}
.record-instructions a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.record-instructions a:hover {
  color: var(--accent-dark);
}

/* --- DNS TOOL SELECT --- */
.tool-select {
  font-family: var(--mono);
  font-size: 0.95rem;
  padding: 0.8rem 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  outline: none;
  transition: border-color 0.2s;
  cursor: pointer;
  min-width: 100px;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2.25rem;
}
.tool-select:focus { border-color: var(--accent); }

/* --- DNS TYPE BADGE --- */
.dns-type-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  background: var(--accent-light);
  color: var(--accent-dark);
  border-radius: 6px;
  margin-left: 0.5rem;
}

/* --- RECORD COUNT --- */
.record-count {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg);
  padding: 0.15rem 0.5rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  margin-left: 0.5rem;
}

/* --- FCrDNS DETAIL --- */
.fcrdns-detail {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-left: 0.5rem;
}

/* --- DNS PROPAGATION --- */
.propagation-summary {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.propagation-meter {
  width: 100%;
  height: 8px;
  background: var(--bg);
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.propagation-bar {
  height: 100%;
  background: var(--green);
  border-radius: 4px;
  transition: width 0.5s ease;
}
.propagation-text {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
}
.propagation-row--mismatch td {
  background: rgba(245, 158, 11, 0.05);
}
.propagation-row--error td {
  background: rgba(239, 68, 68, 0.05);
}
.propagation-status {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  font-size: 0.9rem;
  font-weight: 700;
}
.propagation-status--match {
  background: rgba(16, 185, 129, 0.1);
  color: var(--green);
}
.propagation-status--mismatch {
  background: rgba(245, 158, 11, 0.1);
  color: var(--orange);
}
.propagation-status--error {
  background: rgba(239, 68, 68, 0.1);
  color: var(--red);
}

/* --- TAG INFO --- */
.tag--info {
  background: var(--accent-light);
  color: var(--accent-dark);
}

/* --- SSL CERTIFICATE CHECKER --- */
.ssl-status-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.ssl-status-badge {
  font-family: var(--mono);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 0.4rem 1rem;
  border-radius: 6px;
  white-space: nowrap;
  display: inline-block;
}
.ssl-status-badge--valid {
  background: #d1fae5;
  color: #065f46;
}
.ssl-status-badge--expiring {
  background: #fef3c7;
  color: #92400e;
}
.ssl-status-badge--expired {
  background: #fee2e2;
  color: #991b1b;
}
.ssl-status-badge--error {
  background: #fee2e2;
  color: #991b1b;
}
.san-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.san-tag {
  font-family: var(--mono);
  font-size: 0.82rem;
  background: var(--bg-code);
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  border: 1px solid var(--border);
}
.text-warning {
  color: var(--orange);
}
.text-error {
  color: var(--red);
}

/* --- MY IP --- */
.my-ip-display {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding: 1.5rem 1rem;
}
.my-ip-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}
.my-ip-address {
  font-family: var(--mono);
  font-size: clamp(1.5rem, 5vw, 2.5rem);
  font-weight: 700;
  color: var(--accent);
  word-break: break-all;
  text-align: center;
}
.my-ip-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
}
.my-ip-hostname {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--text-muted);
}
.my-ip-hostname--none {
  font-style: italic;
}

/* --- DOMAIN AGE --- */
.domain-age-display {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 1.5rem 1rem;
}
.domain-age-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}
.domain-age-value {
  font-family: var(--mono);
  font-size: clamp(1.2rem, 4vw, 1.8rem);
  font-weight: 700;
  color: var(--accent);
}
.domain-age-timeline {
  margin-top: 0.5rem;
}
.domain-age-timeline-bar {
  position: relative;
  width: 100%;
  height: 12px;
  background: var(--bg);
  border-radius: 6px;
  border: 1px solid var(--border);
  overflow: visible;
}
.domain-age-timeline-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--green));
  border-radius: 6px 0 0 6px;
  min-width: 2px;
}
.domain-age-timeline-marker {
  position: absolute;
  top: -6px;
  transform: translateX(-50%);
  width: 4px;
  height: 24px;
  background: var(--accent);
  border-radius: 2px;
}
.domain-age-timeline-marker-label {
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
}
.domain-age-timeline-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 0.75rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* --- CATEGORY INDEX PAGES --- */
.category-showcase {
  max-width: 960px;
  margin: 0 auto;
}
.category-tool {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  padding: 3rem 0;
  border-bottom: 1px solid var(--border);
}
.category-tool:last-child { border-bottom: none; }
.category-tool--reverse { direction: rtl; }
.category-tool--reverse > * { direction: ltr; }

.category-tool-text h2 {
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 0.75rem;
}
.category-tool-text p {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.65;
  margin-bottom: 1.25rem;
}

/* Category visual helpers */
.cat-visual-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}
.cat-visual-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-family: var(--mono);
}
.cat-visual-envelope {
  text-align: center;
  padding: 1rem 0 1.25rem;
}

/* Generator flow visuals */
.cat-gen-flow {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: center;
}
.cat-gen-input {
  width: 100%;
  text-align: center;
}
.cat-gen-input-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  display: block;
  margin-bottom: 0.5rem;
}
.cat-gen-pills {
  display: flex;
  gap: 0.4rem;
  justify-content: center;
  flex-wrap: wrap;
}
.cat-gen-pill {
  font-size: 0.78rem;
  font-family: var(--mono);
  padding: 0.3rem 0.7rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text-muted);
}
.cat-gen-pill--active {
  background: var(--accent-light);
  border-color: var(--accent);
  color: var(--accent-dark);
  font-weight: 600;
}
.cat-gen-arrow {
  padding: 0.25rem 0;
  color: var(--accent);
}
.cat-gen-output {
  width: 100%;
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
}
.cat-gen-output code {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text);
  line-height: 1.6;
}
.cat-gen-fields {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.cat-gen-field {
  font-size: 0.82rem;
  font-family: var(--mono);
  color: var(--text-muted);
}
.cat-gen-slider {
  display: flex;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  justify-content: center;
}
.cat-gen-slider-opt {
  font-size: 0.78rem;
  font-family: var(--mono);
  padding: 0.35rem 0.9rem;
  color: var(--text-muted);
  border-right: 1px solid var(--border);
}
.cat-gen-slider-opt:last-child { border-right: none; }
.cat-gen-slider-opt--active {
  background: var(--accent);
  color: #fff;
  font-weight: 600;
}

/* DNS lookup multi-type visual */
.cat-dns-records {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.cat-dns-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.cat-dns-type {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  min-width: 3.2rem;
  text-align: center;
  flex-shrink: 0;
}
.cat-dns-type--a { background: #dbeafe; color: #1d4ed8; }
.cat-dns-type--aaaa { background: #ede9fe; color: #6d28d9; }
.cat-dns-type--cname { background: #fef3c7; color: #b45309; }
.cat-dns-type--txt { background: #dcfce7; color: #15803d; }
.cat-dns-row code {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--text);
}

/* Reverse DNS flow visual */
.cat-rdns-flow {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
}
.cat-rdns-step {
  text-align: center;
}
.cat-rdns-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}
.cat-rdns-step code {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--text);
}
.cat-rdns-arrow {
  flex-shrink: 0;
}
.cat-rdns-check {
  width: 100%;
  text-align: center;
  margin-top: 0.5rem;
}

/* Propagation grid visual */
.cat-prop-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
}
.cat-prop-server {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  padding: 0.4rem 0;
}
.cat-prop-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.cat-prop-dot--ok { background: var(--green); }
.cat-prop-dot--pending { background: var(--orange); }
.cat-prop-name {
  font-weight: 600;
  color: var(--text);
}
.cat-prop-loc {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-left: auto;
  font-family: var(--mono);
}

/* WHOIS card visual */
.cat-whois-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.cat-whois-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.35rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.85rem;
}
.cat-whois-row:last-child { border-bottom: none; }
.cat-whois-label {
  color: var(--text-muted);
  font-size: 0.78rem;
}
.cat-whois-value {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--text);
}

/* SSL card visual */
.cat-ssl-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.cat-ssl-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.cat-ssl-lock {
  flex-shrink: 0;
}
.cat-ssl-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
}
.cat-ssl-details {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.cat-ssl-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  padding: 0.25rem 0;
}
.cat-ssl-label {
  color: var(--text-muted);
  font-size: 0.78rem;
}

/* IP reputation visual */
.cat-ip-gauge {
  text-align: center;
}
.cat-ip-trend {
  margin-top: 0.75rem;
}
.cat-ip-sparkline {
  width: 100%;
  height: 40px;
}
.cat-ip-trend-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

/* My IP visual */
.cat-myip-display {
  text-align: center;
  padding: 1rem 0;
}
.cat-myip-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}
.cat-myip-addr {
  display: block;
  font-family: var(--mono);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}
.cat-myip-meta {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
}

/* Domain age visual */
.cat-age-display {
  text-align: center;
  padding: 0.5rem 0;
}
.cat-age-header {
  margin-bottom: 1.25rem;
}
.cat-age-years {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}
.cat-age-unit {
  display: block;
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 600;
  margin-top: 0.25rem;
}
.cat-age-bar-wrapper {
  max-width: 280px;
  margin: 0 auto;
}
.cat-age-bar {
  height: 8px;
  background: var(--bg-code);
  border-radius: 4px;
  position: relative;
  overflow: visible;
}
.cat-age-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--green));
  border-radius: 4px;
}
.cat-age-bar-marker {
  position: absolute;
  top: -3px;
  width: 14px;
  height: 14px;
  background: var(--green);
  border: 2px solid var(--bg-alt);
  border-radius: 50%;
  transform: translateX(-50%);
  box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}
.cat-age-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 0.5rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* --- BREADCRUMB --- */
.breadcrumb {
  margin: 0 0 0.25rem;
  padding: 0;
  background: none;
  border: none;
  box-shadow: none;
}
.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 0.3rem;
  font-size: 0.75rem;
  font-family: var(--mono);
  color: var(--text-muted);
}
.breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}
.breadcrumb li + li::before {
  content: "/";
  color: #cbd5e1;
  font-weight: 300;
}
.breadcrumb a {
  color: var(--text-muted);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb li[aria-current="page"] {
  color: var(--text-muted);
  opacity: 0.7;
}

/* --- FAQ --- */
.faq-section {
  margin-top: 3rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
}
.faq-section h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}
.faq-item {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 0.75rem;
}
.faq-question {
  padding: 1rem 1.25rem;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.faq-question::-webkit-details-marker { display: none; }
.faq-question::after {
  content: "+";
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--text-muted);
  flex-shrink: 0;
}
.faq-item[open] .faq-question::after { content: "−"; }
.faq-answer {
  padding: 0 1.25rem 1.25rem;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--text);
}
.faq-answer p { margin-bottom: 0.75rem; }
.faq-answer p:last-child { margin-bottom: 0; }
.faq-answer a { color: var(--accent); text-decoration: underline; }
.faq-answer code {
  font-family: var(--mono);
  font-size: 0.85em;
  background: var(--bg-code);
  padding: 0.15em 0.4em;
  border-radius: 4px;
}

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: block; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
    padding: 1.5rem 2rem;
    gap: 0.5rem;
  }
  .nav-dropdown-menu {
    position: static;
    transform: none;
    border: none;
    box-shadow: none;
    min-width: unset;
    padding: 0 0 0 0.5rem;
    gap: 0;
  }
  .nav-dropdown.open .nav-dropdown-menu { display: flex; flex-direction: column; }
  .nav-dropdown-group { padding: 0.25rem 0; }
  .nav-dropdown-label { margin-top: 0.25rem; }
  .tool-input-row { flex-direction: column; }
  .tool-input-row .tool-input { flex: unset !important; }
  .tool-input-row .tool-select { width: 100%; }
  .propagation-text { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
  .hero { padding: 3rem 1.5rem 2rem; }
  .showcase-row { grid-template-columns: 1fr; gap: 2rem; padding: 2rem 0; }
  .showcase-row--reverse { direction: ltr; }
  .showcase-text h3 { font-size: 1.25rem; }
  .category-tool { grid-template-columns: 1fr; gap: 2rem; padding: 2rem 0; }
  .category-tool--reverse { direction: ltr; }
  .cat-myip-addr { font-size: 1.3rem; }
  .cat-rdns-flow { flex-direction: column; }
  .home-blog-grid { grid-template-columns: 1fr; }
  .tool-page { padding: 2rem 1rem 3rem; }
  .spf-stats { flex-direction: column; gap: 1rem; }
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-links { justify-content: center; }
  .context-grid { grid-template-columns: 1fr; }
  .health-summary { flex-direction: column; align-items: center; text-align: center; }
  .health-verdict { margin: 0 auto; }
  .health-counters { justify-content: center; }
  .score-ring { width: 100px; height: 100px; }
  .report-stats { flex-direction: column; gap: 1rem; }
  .impact-grid { grid-template-columns: 1fr; }
  .ip-detail-grid { grid-template-columns: repeat(2, 1fr); }
  .blog-page { padding: 2rem 1rem 3rem; }
  .blog-post { padding: 2rem 1rem 3rem; }
  .blog-post-nav { grid-template-columns: 1fr; }
  .blog-card { padding: 1.25rem 1.5rem; }
  .form-row { flex-direction: column; gap: 1rem; }
  .form-group--half { flex: unset; }
  .my-ip-address { font-size: 1.5rem; }
  .domain-age-value { font-size: 1.2rem; }
}