:root {

  --bg: #07090c;
  --surface: rgba(255,255,255,0.025);
  --surface-strong: rgba(255,255,255,0.045);
  --border: rgba(255,255,255,0.07);
  --border-strong: rgba(255,255,255,0.16);
  --text: #e6ece8;
  --muted: rgba(230,236,232,0.60);
  --dim: rgba(230,236,232,0.38);
  --accent: #4bf0c4;
  --accent-soft: rgba(75,240,196,0.10);
  --accent-glow: rgba(75,240,196,0.40);
  --radius: 6px;
  --radius-sm: 4px;
  --nav-bg: rgba(5,7,13,0.55);
  --btn-fg: #05070d;
  --card-bg: rgba(255,255,255,0.02);
  --card-bg-strong: rgba(255,255,255,0.025);
  --panel-bg: rgba(0,0,0,0.2);
  --panel-bg-strong: rgba(0,0,0,0.35);
  --panel-bg-deep: rgba(0,0,0,0.45);
  --sticky-header-bg: rgba(5,7,13,0.85);
  --shadow-med: 0 40px 80px -40px rgba(0,0,0,0.8);
  --deep-shadow: 0 40px 80px -40px rgba(0,0,0,0.9);
  --grid-faint: rgba(255,255,255,0.045);
  --grid-bold: rgba(255,255,255,0.09);
  --vignette: inset 0 0 300px rgba(0,0,0,0.6);
  --hero-glow-opacity: 0.35;
  --secondary-gradient: #7a6bff;
  --warning: #ffbd2e;
  --danger: #ff5f56;
  --success: #27c93f;
  --orange: #ff9a3c;

  --sans: "Space Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
}

:root[data-theme="light"] {
  --bg: #f5f7f9;
  --surface: rgba(0,0,0,0.025);
  --surface-strong: rgba(0,0,0,0.05);
  --border: rgba(10,20,30,0.09);
  --border-strong: rgba(10,20,30,0.18);
  --text: #0d1419;
  --muted: rgba(13,20,25,0.68);
  --dim: rgba(13,20,25,0.45);
  --accent: #00a88a;
  --accent-soft: rgba(0,168,138,0.12);
  --accent-glow: rgba(0,168,138,0.35);
  --nav-bg: rgba(245,247,249,0.75);
  --btn-fg: #ffffff;
  --card-bg: rgba(255,255,255,0.7);
  --card-bg-strong: rgba(255,255,255,0.85);
  --panel-bg: rgba(0,0,0,0.025);
  --panel-bg-strong: rgba(255,255,255,0.85);
  --panel-bg-deep: rgba(255,255,255,0.92);
  --sticky-header-bg: rgba(245,247,249,0.92);
  --shadow-med: 0 30px 60px -40px rgba(10,20,30,0.14);
  --deep-shadow: 0 40px 80px -40px rgba(10,20,30,0.25);
  --grid-faint: rgba(10,20,30,0.045);
  --grid-bold: rgba(10,20,30,0.08);
  --vignette: inset 0 0 300px rgba(245,247,249,0.6);
  --hero-glow-opacity: 0.25;
}

*, *::before, *::after { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  transition: background-color .25s ease, color .25s ease;
  overflow-x: hidden;
}
body {
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
  min-height: 100vh;
}
*::selection { background: var(--accent); color: #05070d; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(128,128,128,0.2); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: rgba(128,128,128,0.35); }

a { color: inherit; }
button { font-family: inherit; }
img { max-width: 100%; display: block; }
h1,h2,h3,h4 { font-family: var(--sans); }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 28px;
  padding-right: 28px;
}
.container-sm { max-width: 900px; margin: 0 auto; padding: 0 28px; }
.container-md { max-width: 1080px; margin: 0 auto; padding: 0 28px; }

.nav {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  background: var(--nav-bg);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 28px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -0.015em;
}
.brand-mark {
  width: 30px; height: 30px; border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent) 0%, var(--secondary-gradient) 100%);
  box-shadow: 0 0 20px var(--accent-glow);
  display: grid; place-items: center;
  color: var(--btn-fg);
}
.nav-links {
  display: flex;
  gap: 4px;
  margin-left: auto;
  list-style: none;
  padding: 0; margin: 0 0 0 auto;
}
.nav-link {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  text-decoration: none;
  color: var(--muted);
  font-weight: 500;
  border: 1px solid transparent;
  transition: color .15s, background .15s, border-color .15s;
}
.nav-link:hover { color: var(--text); }
.nav-link.active {
  color: var(--text);
  background: var(--surface);
  border-color: var(--border);
}
.theme-toggle {
  width: 36px; height: 36px;
  display: grid; place-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--muted);
  cursor: pointer;
  transition: color .15s, border-color .15s, box-shadow .15s;
}
.theme-toggle:hover {
  color: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 14px var(--accent-glow);
}
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }
:root[data-theme="light"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="light"] .theme-toggle .icon-moon { display: block; }
:root:not([data-theme="light"]) .theme-toggle .icon-sun { display: block; }
:root:not([data-theme="light"]) .theme-toggle .icon-moon { display: none; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: transform .1s, box-shadow .15s, opacity .15s;
}
.btn-primary {
  color: var(--btn-fg);
  background: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), 0 0 24px var(--accent-glow);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 0 0 1px var(--accent), 0 0 32px var(--accent-glow); }
.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; transform: none; box-shadow: none; }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-strong);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-sm { padding: 9px 16px; font-size: 13px; }
.btn-lg { padding: 13px 24px; font-size: 14px; }

.nav-cta {
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  color: var(--btn-fg);
  background: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 0 0 1px var(--accent), 0 0 24px var(--accent-glow);
}

.nav-hamburger {
  display: none;
  width: 36px; height: 36px;
  align-items: center; justify-content: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--muted);
  cursor: pointer;
  transition: color .15s, border-color .15s;
  padding: 0;
}
.nav-hamburger:hover { color: var(--text); border-color: var(--border-strong); }
.nav-hamburger svg { display: block; }
.nav-hamburger .icon-close { display: none; }
.nav-hamburger[aria-expanded="true"] .icon-open { display: none; }
.nav-hamburger[aria-expanded="true"] .icon-close { display: block; }

.mobile-nav-panel {
  display: none;
  position: absolute;
  top: 100%;
  left: 16px;
  right: 16px;
  margin-top: 8px;
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow-med);
  padding: 8px;
  z-index: 50;
}
.mobile-nav-panel.is-open { display: block; }
.mobile-nav-panel ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.mobile-nav-panel .nav-link {
  display: block;
  padding: 12px 14px;
  font-size: 14px;
}
.mobile-nav-panel .mobile-theme-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  margin-top: 4px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--muted);
  font-family: var(--mono);
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(to bottom, black 0%, black 55%, transparent 100%);
  mask-image: linear-gradient(to bottom, black 0%, black 55%, transparent 100%);
}
.hero-bg::before,
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
}
.hero-bg::before {
  background-image:
    linear-gradient(var(--grid-faint) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-faint) 1px, transparent 1px);
  background-size: 40px 40px;
}
.hero-bg::after {
  background-image:
    linear-gradient(var(--grid-bold) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-bold) 1px, transparent 1px);
  background-size: 200px 200px;
}
.hero-bg .hero-glow {
  position: absolute;
  top: -10%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 520px;
  background: radial-gradient(ellipse at center, var(--accent-glow) 0%, transparent 65%);
  filter: blur(30px);
  opacity: var(--hero-glow-opacity);
}
.hero-bg .hero-vignette {
  position: absolute;
  inset: 0;
  box-shadow: var(--vignette);
  -webkit-mask-image: radial-gradient(ellipse at 50% 40%, black 30%, transparent 80%);
  mask-image: radial-gradient(ellipse at 50% 40%, black 30%, transparent 80%);
}
.hero-bg .hero-ticks {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

section { position: relative; }
.hero {
  position: relative;
  padding: 80px 28px 40px;
  overflow: hidden;
}
.hero-inner {
  position: relative;
  max-width: 1080px;
  margin: 0 auto;
  text-align: center;
}
.eyebrow-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 12px;
  color: var(--muted);
  font-family: var(--mono);
  margin-bottom: 24px;
}
.eyebrow-pill .pill-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
}
.eyebrow-pill .pill-dot.orange { background: var(--orange); box-shadow: 0 0 10px var(--orange); }

.hero h1 {
  font-size: clamp(44px, 6.2vw, 76px);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.02;
  margin: 0 0 20px;
  color: var(--text);
}
.hero h1 .accent { color: var(--accent); }
.hero .lede {
  font-size: 18px;
  color: var(--muted);
  max-width: 720px;
  margin: 0 auto 44px;
  line-height: 1.55;
}
.hero-sm h1 {
  font-size: clamp(38px, 5vw, 60px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 0 0 18px;
}
.hero-sm .lede { font-size: 16px; max-width: 560px; margin: 0 auto; }

.checker-card {
  position: relative;
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow-med);
  overflow: hidden;
  text-align: left;
}
.checker-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  flex-wrap: wrap;
  gap: 12px;
}
.traffic-lights { display: flex; gap: 6px; }
.traffic-lights span {
  width: 10px; height: 10px; border-radius: 50%;
}
.traffic-lights span:nth-child(1) { background: var(--danger); }
.traffic-lights span:nth-child(2) { background: var(--warning); }
.traffic-lights span:nth-child(3) { background: var(--success); }
.checker-filename { margin-left: 10px; letter-spacing: 0.05em; }
.checker-head-right { display: flex; gap: 12px; align-items: center; }
.btn-ghost-mono {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  cursor: pointer;
  font-family: var(--mono);
  letter-spacing: 0.03em;
}
.btn-ghost-mono:hover { color: var(--text); border-color: var(--border-strong); }
.url-count { color: var(--dim); }
.url-count.warn { color: var(--warning); }

#url-textarea {
  width: 100%;
  min-height: 240px;
  resize: vertical;
  background: transparent;
  color: var(--text);
  border: none;
  outline: none;
  padding: 20px 22px;
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.7;
  letter-spacing: -0.005em;
  display: block;
  overflow-wrap: anywhere;
  word-break: break-word;
  white-space: pre-wrap;
}
.checker-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  background: var(--panel-bg);
  gap: 12px;
  flex-wrap: wrap;
}
.checker-foot .help {
  font-size: 12px;
  color: var(--dim);
  font-family: var(--mono);
}
.assurance-row {
  margin-top: 40px;
  display: flex;
  gap: 24px;
  justify-content: center;
  font-size: 12px;
  color: var(--dim);
  font-family: var(--mono);
  flex-wrap: wrap;
}
.share-row {
  margin-top: 18px;
  display: flex;
  gap: 14px;
  justify-content: center;
  align-items: center;
  font-size: 12px;
  color: var(--dim);
  font-family: var(--mono);
  flex-wrap: wrap;
}
.share-row .share-links { display: flex; gap: 8px; }
.share-icon {
  width: 32px; height: 32px;
  display: grid; place-items: center;
  border-radius: var(--radius-sm);
  color: #fff;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform .15s, box-shadow .2s, filter .15s;
}
.share-icon:hover {
  transform: translateY(-1px);
  filter: brightness(1.1);
  box-shadow: 0 6px 18px -6px rgba(0, 0, 0, 0.5);
}
.share-icon.share-linkedin { background: #0A66C2; }
.share-icon.share-facebook { background: #1877F2; }
.share-icon.share-x        { background: #000000; }
.share-icon.share-email    { background: #ff9a3c; }

:root:not([data-theme="light"]) .share-icon.share-x {
  border-color: rgba(255, 255, 255, 0.18);
}

.results-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  gap: 12px;
  flex-wrap: wrap;
}
.btn-back {
  display: flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  cursor: pointer;
}
.btn-back:hover { color: var(--text); border-color: var(--border-strong); }
.results-count {
  font-size: 13px;
  color: var(--muted);
  font-family: var(--mono);
}
.results-count strong { color: var(--accent); font-weight: 600; }
.results-body { max-height: 480px; overflow-y: auto; }
.results-empty {
  padding: 60px;
  text-align: center;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 13px;
}
.results-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--mono);
  font-size: 13px;
}
.results-table thead th {
  position: sticky;
  top: 0;
  background: var(--sticky-header-bg);
  backdrop-filter: blur(10px);
  text-align: left;
  padding: 10px 20px;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dim);
  font-weight: 500;
  border-bottom: 1px solid var(--border);
}
.results-table tbody tr {
  border-top: 1px solid var(--border);
  transition: background .12s;
}
.results-table tbody tr:hover { background: var(--surface); }
.results-table td { padding: 11px 20px; }
.results-table .col-idx {
  color: var(--dim);
  width: 60px;
  font-variant-numeric: tabular-nums;
}
.results-table .col-url a {
  color: var(--text);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  max-width: 100%;
  overflow: hidden;
}
.results-table .col-url a:hover { color: var(--accent); }
.results-table .col-url a span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 600px;
}
.results-table .col-actions { text-align: right; width: 80px; }
.btn-copy {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: var(--radius-sm);
  padding: 5px 10px;
  font-size: 11px;
  cursor: pointer;
  font-family: var(--mono);
  transition: color .15s, border-color .15s;
}
.btn-copy:hover { color: var(--text); border-color: var(--border-strong); }
.btn-copy.copied { color: var(--accent); border-color: var(--accent); }

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  font-family: var(--mono);
  color: var(--accent);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.section-eyebrow::before,
.section-eyebrow::after {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--accent);
  opacity: 0.6;
}
.section-header h2 {
  font-size: clamp(30px, 3.6vw, 46px);
  font-weight: 700;
  margin: 0 0 14px;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--text);
  text-wrap: balance;
}
.section-header p {
  font-size: 16px;
  color: var(--muted);
  margin: 0;
  line-height: 1.65;
  text-wrap: pretty;
}

.features-section { padding: 60px 28px 40px; position: relative; }
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 48px;
}
.feature-card {
  position: relative;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 26px;
  min-height: 200px;
  overflow: hidden;
  transition: transform .25s, border-color .2s;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent) 50%, transparent);
  opacity: 0.4;
}
.feature-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}
.feature-icon {
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  background: var(--accent-soft);
  color: var(--accent);
  margin-bottom: 18px;
  border: 1px solid var(--border);
}
.feature-num {
  font-size: 11px;
  color: var(--dim);
  font-family: var(--mono);
  margin-bottom: 6px;
  letter-spacing: 0.1em;
}
.feature-card h3 {
  font-size: 17px;
  font-weight: 600;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
  color: var(--text);
}
.feature-card p {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
  line-height: 1.7;
}

.usecases-section { padding: 0 28px 96px; position: relative; }
.usecases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 48px;
}
.usecase-card {
  position: relative;
  background: var(--panel-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 26px;
  min-height: 200px;
  overflow: hidden;
  transition: transform .25s, border-color .2s, background .2s;
}
.usecase-card::after {
  content: '';
  position: absolute;
  left: 0; top: 26px; bottom: 26px;
  width: 2px;
  background: var(--accent);
  opacity: 0;
  transition: opacity .2s;
}
.usecase-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}
.usecase-card:hover::after { opacity: 0.6; }
.usecase-icon {
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  background: var(--accent-soft);
  color: var(--accent);
  margin-bottom: 18px;
  border: 1px solid var(--border);
}
.usecase-card h3 {
  font-size: 17px;
  font-weight: 600;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
  color: var(--text);
}
.usecase-card p {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
  line-height: 1.7;
}

.howto-section { padding: 80px 28px; position: relative; }
.howto-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 56px;
  position: relative;
  list-style: none;
  padding: 0;
}
.howto-connector {
  position: absolute;
  top: 44px;
  left: 16.66%;
  right: 16.66%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent) 20%, var(--accent) 80%, transparent);
  opacity: 0.35;
}
.howto-step {
  position: relative;
  text-align: center;
  padding: 0 16px;
}
.howto-num-circle {
  width: 88px; height: 88px;
  margin: 0 auto 28px;
  border-radius: var(--radius);
  background: var(--bg);
  border: 1px solid var(--border-strong);
  display: grid;
  place-items: center;
  position: relative;
  box-shadow: 0 0 0 6px var(--bg), 0 0 40px -10px var(--accent-glow);
}
.howto-num-circle::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  border: 1px solid var(--accent);
  opacity: 0.3;
  pointer-events: none;
}
.howto-num-circle span {
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: -0.02em;
}
.howto-step h3 {
  font-size: 20px;
  font-weight: 600;
  margin: 0 0 10px;
  letter-spacing: -0.015em;
  color: var(--text);
}
.howto-step p {
  font-size: 14px;
  color: var(--muted);
  margin: 0 auto;
  line-height: 1.7;
  max-width: 280px;
}

.cta-section { padding: 100px 28px; position: relative; }
.cta-box {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(75,240,196,0.06) 0%, rgba(122,107,255,0.04) 100%);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 56px 64px;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  align-items: center;
  max-width: 1120px;
  margin: 0 auto;
}
.cta-box > * { min-width: 0; }
.cta-box::before {
  content: '';
  position: absolute;
  top: -40%; right: -10%;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 60%);
  filter: blur(40px);
  opacity: 0.5;
  pointer-events: none;
}
.cta-text { position: relative; }
.cta-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-family: var(--mono);
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.cta-eyebrow::before {
  content: '';
  width: 20px;
  height: 1px;
  background: var(--accent);
}
.cta-box h2 {
  font-size: clamp(28px, 3.2vw, 40px);
  font-weight: 700;
  margin: 0 0 16px;
  letter-spacing: -0.025em;
  line-height: 1.1;
  color: var(--text);
}
.cta-box h2 .accent { color: var(--accent); }
.cta-box p {
  font-size: 16px;
  color: var(--muted);
  margin: 0 0 28px;
  line-height: 1.65;
  max-width: 480px;
  overflow-wrap: anywhere;
}
.cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.threat-list {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-family: var(--mono);
  font-size: 12px;
  min-width: 0;
}
.threat-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--panel-bg-strong);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  backdrop-filter: blur(10px);
  min-width: 0;
}
.threat-type {
  color: var(--dim);
  width: 78px;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  flex-shrink: 0;
}
.threat-value {
  color: var(--text);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.threat-tag {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 110px;
  flex-shrink: 0;
  justify-content: flex-start;
}
.threat-tag::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 8px currentColor;
}
.threat-tag.malicious { color: var(--danger); }
.threat-tag.warn { color: var(--warning); }

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 60px;
  padding: 60px 28px 32px;
  background: var(--panel-bg);
}
.footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 56px;
}
.footer-brand p {
  font-size: 13px;
  color: var(--muted);
  margin: 16px 0 20px;
  max-width: 300px;
  line-height: 1.7;
}
.footer-socials { display: flex; gap: 8px; }
.footer-socials a {
  width: 32px; height: 32px;
  display: grid; place-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--muted);
  text-decoration: none;
  transition: color .15s, border-color .15s;
}
.footer-socials a:hover { color: var(--accent); border-color: var(--border-strong); }
.footer-col h4 {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--dim);
  font-weight: 500;
  margin: 0 0 20px;
  font-family: var(--mono);
}
.footer-col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 12px; }
.footer-col ul a {
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  transition: color .15s;
}
.footer-col ul a:hover { color: var(--text); }
.footer-bottom {
  max-width: 1200px;
  margin: 48px auto 0;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--dim);
  font-family: var(--mono);
  letter-spacing: 0.02em;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--dim);
  text-decoration: none;
  transition: color .15s;
}
.footer-status:hover { color: var(--text); }
.footer-status::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}
.footer-tags { display: flex; gap: 20px; align-items: center; }

.faq-hero { padding: 80px 28px 40px; }
.faq-section { padding: 40px 28px 80px; }
.faq-list {
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: var(--card-bg);
  overflow: hidden;
  backdrop-filter: blur(10px);
}
.faq-item { border-bottom: 1px solid var(--border); transition: background .15s; }
.faq-item:last-child { border-bottom: none; }
.faq-item.is-open { background: var(--card-bg); }
.faq-question {
  width: 100%;
  padding: 22px 24px;
  background: transparent;
  border: none;
  display: flex;
  align-items: center;
  gap: 20px;
  cursor: pointer;
  text-align: left;
  color: var(--text);
  font-family: inherit;
}
.faq-toggle-mark {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--dim);
  letter-spacing: 0.1em;
  width: 32px;
  flex-shrink: 0;
  transition: color .15s;
}
.faq-item.is-open .faq-toggle-mark { color: var(--accent); }
.faq-question-text {
  flex: 1;
  font-size: 16px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--text);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s cubic-bezier(.2,.7,.3,1);
}
.faq-item.is-open .faq-answer { max-height: 2000px; }
.faq-answer-inner {
  padding: 0 24px 24px 76px;
  max-width: 820px;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}
.faq-answer-inner p { margin: 0; }
.faq-answer-inner .answer-blocks { display: flex; flex-direction: column; gap: 16px; }
.faq-group-label {
  font-size: 11px;
  font-family: var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 6px;
}
.faq-steps { list-style: none; padding: 0; margin: 0; }
.faq-step {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 4px 0;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}
.faq-step::before {
  content: '—';
  color: var(--dim);
  font-family: var(--mono);
  font-size: 12px;
  flex-shrink: 0;
  margin-top: 1px;
}
.faq-step-content { flex: 1; }
.faq-step-content a { color: inherit; text-decoration: underline; text-decoration-style: dotted; }
.screenshot-pill {
  margin-left: 10px;
  vertical-align: middle;
  padding: 2px 10px;
  border-radius: 999px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--accent);
  font-size: 11px;
  font-weight: 500;
  font-family: var(--mono);
  letter-spacing: 0.04em;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: all .15s;
}
.screenshot-pill:hover { border-color: var(--accent); background: var(--accent-soft); }

.stuck-box {
  margin-top: 40px;
  padding: 32px 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(75,240,196,0.05), rgba(122,107,255,0.04));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.stuck-box h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 6px;
  color: var(--text);
  letter-spacing: -0.01em;
}
.stuck-box p { font-size: 14px; color: var(--muted); margin: 0; line-height: 1.7; }

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(5,7,13,0.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 40px;
  animation: faqFadeIn .18s ease-out;
}
.lightbox.is-open { display: flex; }
@keyframes faqFadeIn { from { opacity: 0; } to { opacity: 1; } }
.lightbox-frame {
  position: relative;
  max-width: 90vw;
  max-height: 88vh;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 40px 120px rgba(0,0,0,0.6);
  background: #111;
}
.lightbox-frame img { display: block; max-width: 90vw; max-height: 88vh; object-fit: contain; }
.lightbox-caption {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 14px 20px;
  background: linear-gradient(to top, rgba(0,0,0,0.85), transparent);
  color: rgba(255,255,255,0.85);
  font-size: 13px;
  font-family: var(--mono);
  letter-spacing: 0.02em;
}
.lightbox-close {
  position: absolute;
  top: 20px; right: 20px;
  width: 40px; height: 40px;
  display: grid; place-items: center;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 999px;
  color: #fff;
  cursor: pointer;
  z-index: 2;
  transition: background .15s;
}
.lightbox-close:hover { background: rgba(255,255,255,0.18); }
.lightbox-placeholder {
  width: 760px;
  max-width: 88vw;
  aspect-ratio: 16 / 10;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 14px;
  color: rgba(255,255,255,0.6);
  font-family: var(--mono);
  font-size: 13px;
  padding: 40px;
  text-align: center;
  background: repeating-linear-gradient(45deg, #1a1d25, #1a1d25 10px, #161920 10px, #161920 20px);
}
.lightbox-placeholder .ph-icon { font-size: 32px; opacity: 0.4; }
.lightbox-placeholder .ph-title { font-weight: 600; color: #fff; font-size: 15px; }
.lightbox-placeholder code { color: var(--accent); }

.stats-section { padding: 60px 28px; }
.stats-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.stat-card {
  position: relative;
  padding: 36px 30px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card-bg);
  overflow: hidden;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent) 50%, transparent);
  opacity: 0.5;
}
.stat-num {
  font-size: 12px;
  color: var(--dim);
  font-family: var(--mono);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.stat-value {
  font-size: clamp(40px, 5vw, 56px);
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label {
  font-size: 14px;
  color: var(--muted);
  letter-spacing: -0.005em;
}

.tools-section { padding: 60px 28px 40px; }
.tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 48px;
}
.tool-card {
  position: relative;
  padding: 26px 26px 24px;
  min-height: 230px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card-bg);
  display: flex;
  flex-direction: column;
  transition: border-color .2s, transform .2s;
}
.tool-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent) 50%, transparent);
  opacity: 0.4;
}
.tool-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}
.tool-card .tool-num {
  font-size: 10px;
  color: var(--dim);
  font-family: var(--mono);
  letter-spacing: 0.12em;
  margin-bottom: 14px;
}
.tool-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 8px;
  letter-spacing: -0.015em;
  color: var(--text);
}
.tool-card p {
  font-size: 13.5px;
  color: var(--muted);
  margin: 0 0 20px;
  line-height: 1.7;
  flex: 1;
}
.tool-visit {
  align-self: flex-start;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--accent);
  background: transparent;
  text-decoration: none;
  border: 1px solid var(--border);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  letter-spacing: 0.02em;
  transition: border-color .15s, background .15s, box-shadow .15s;
}
.tool-visit:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  box-shadow: 0 0 14px var(--accent-glow);
}

.contact-hero { padding: 90px 28px 60px; }
.email-card {
  display: inline-block;
  padding: 28px 44px 32px;
  background: var(--card-bg);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  backdrop-filter: blur(14px);
  box-shadow: var(--deep-shadow);
  margin-top: 32px;
}
.email-label {
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--dim);
  font-family: var(--mono);
  margin-bottom: 12px;
}
.email-card canvas {
  user-select: none;
  pointer-events: none;
  max-width: 100%;
}
.email-note {
  margin-top: 14px;
  font-size: 11px;
  color: var(--dim);
  font-family: var(--mono);
  letter-spacing: 0.05em;
}

@media (max-width: 960px) {
  .features-grid, .howto-grid, .tools-grid, .stats-grid, .usecases-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .cta-box {
    grid-template-columns: 1fr;
    padding: 40px 32px;
    gap: 32px;
  }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .howto-connector { display: none; }
}

@media (max-width: 768px) {

  .nav-inner nav[aria-label="Primary"] { display: none; }
  .nav-inner > .theme-toggle { display: none; }

  .nav-hamburger { display: inline-flex; }

  .nav-inner {
    gap: 10px;
    padding: 12px 16px;
  }
  .brand { margin-right: auto; }
  .nav-cta { padding: 8px 14px; font-size: 12px; }
}
@media (max-width: 640px) {
  .container, .hero, .features-section, .howto-section, .cta-section,
  .faq-hero, .faq-section, .stats-section, .tools-section, .contact-hero,
  .site-footer { padding-left: 16px; padding-right: 16px; }
  .features-grid, .howto-grid, .tools-grid, .stats-grid, .usecases-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .cta-box { padding: 32px 20px; }
  .threat-item { gap: 8px; padding: 12px; }
  .threat-type { width: 60px; font-size: 9px; }
  .threat-value { white-space: normal; overflow-wrap: anywhere; word-break: break-all; }
  .threat-tag { min-width: 0; }
  .faq-answer-inner { padding: 0 20px 20px 48px; }
  .faq-question { padding: 18px 20px; gap: 12px; }
  .faq-toggle-mark { width: 20px; }
  .hero h1 br { display: none; }
  .hero .lede br { display: none; }
  .hero { padding: 60px 16px 30px; }
  .checker-head, .results-head, .checker-foot { padding: 12px 16px; }
  .checker-head-right { gap: 8px; }
  #url-textarea { padding: 16px; font-size: 16px; }
  .assurance-row { gap: 10px; }
  .stuck-box { padding: 24px; flex-direction: column; align-items: flex-start; }
}

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.hidden { display: none !important; }

@keyframes blink { 50% { opacity: 0; } }