:root {
  color-scheme: light dark;
  --page: #f4f7fb;
  --surface: rgba(255, 255, 255, 0.86);
  --surface-solid: #ffffff;
  --text: #142033;
  --muted: #607087;
  --line: #dbe3ee;
  --accent: #1769e0;
  --accent-strong: #0c4fad;
  --accent-soft: #e8f1ff;
  --shadow: 0 16px 45px rgba(31, 53, 88, 0.08);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--page);
  color: var(--text);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }

html {
  min-width: 320px;
  background: radial-gradient(circle at 15% 0%, rgba(23, 105, 224, 0.11), transparent 34rem), var(--page);
}

body { min-height: 100vh; margin: 0; line-height: 1.5; }

.site-header, main, footer { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }

.site-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  padding: 30px 0 22px;
}

.brand {
  color: var(--text);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  text-decoration: none;
}

.site-header p, footer p { margin: 0; color: var(--muted); font-size: 0.9rem; }

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(38px, 7vw, 74px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 28px;
  background: linear-gradient(135deg, #0b4fb6, #1769e0 52%, #4b8ff0);
  box-shadow: 0 24px 70px rgba(13, 79, 173, 0.24);
  color: #ffffff;
}

.hero::after {
  position: absolute;
  width: 340px;
  height: 340px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  content: "";
  right: -120px;
  top: -170px;
  box-shadow: 0 0 0 58px rgba(255, 255, 255, 0.045), 0 0 0 116px rgba(255, 255, 255, 0.025);
}

.eyebrow {
  position: relative;
  z-index: 1;
  margin: 0 0 8px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.ip-address {
  position: relative;
  z-index: 1;
  max-width: 100%;
  margin: 0;
  overflow-wrap: anywhere;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: clamp(2.05rem, 6vw, 4.9rem);
  font-weight: 750;
  letter-spacing: -0.055em;
  line-height: 1.08;
}

.hero-meta {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.protocol-badge, .connection-status {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 6px 13px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.11);
  color: #ffffff;
  font-size: 0.82rem;
  font-weight: 700;
  backdrop-filter: blur(8px);
}

.connection-status::before {
  width: 7px;
  height: 7px;
  margin-right: 8px;
  border-radius: 50%;
  background: #8ff0c8;
  box-shadow: 0 0 0 4px rgba(143, 240, 200, 0.14);
  content: "";
}

.notice { margin: 20px 0 0; padding: 14px 18px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface-solid); }

.section-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 24px;
}

.result-card {
  min-width: 0;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.section-heading {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.section-index {
  display: grid;
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
  place-items: center;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.72rem;
  font-weight: 800;
}

.section-heading h2 { margin: -3px 0 2px; font-size: 1.22rem; letter-spacing: -0.025em; }
.section-heading p, .section-note { margin: 0; color: var(--muted); font-size: 0.82rem; }
.data-list { margin: 8px 0 0; }

.data-list > div {
  display: grid;
  grid-template-columns: minmax(130px, 0.8fr) minmax(0, 1.2fr);
  gap: 18px;
  padding: 12px 0;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 72%, transparent);
}

.data-list > div:last-child { border-bottom: 0; }
.data-list dt { color: var(--muted); font-size: 0.82rem; }

.data-list dd {
  min-width: 0;
  margin: 0;
  overflow-wrap: anywhere;
  color: var(--text);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.78rem;
  font-weight: 650;
  text-align: right;
}

.section-note { margin-top: 14px; padding: 12px 14px; border-radius: 12px; background: var(--accent-soft); }
.muted-card { background: color-mix(in srgb, var(--surface) 88%, var(--page)); }

.fingerprint-section {
  margin-top: 24px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.fingerprint-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 24px;
}

.fingerprint-heading > .section-heading { min-width: 0; padding: 0; border: 0; }

.fingerprint-summary {
  display: grid;
  grid-template-columns: repeat(4, minmax(70px, 1fr));
  gap: 8px;
  margin: 0;
}

.fingerprint-summary > div {
  min-width: 0;
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface-solid);
  text-align: center;
}

.fingerprint-summary dt { color: var(--muted); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.05em; }
.fingerprint-summary dd { margin: 2px 0 0; font-family: "SFMono-Regular", Consolas, monospace; font-size: 0.82rem; font-weight: 750; }

.fingerprint-disclaimer {
  margin: 22px 0 0;
  padding: 13px 15px;
  border-left: 3px solid var(--accent);
  border-radius: 0 12px 12px 0;
  background: var(--accent-soft);
  color: var(--muted);
  font-size: 0.82rem;
}

.fingerprint-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.fingerprint-card {
  min-width: 0;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface-solid);
}

.fingerprint-card-heading { display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.fingerprint-card h3 { margin: 0; font-size: 1rem; letter-spacing: -0.015em; }
.fingerprint-card > p { margin: 9px 0 0; color: var(--muted); font-size: 0.78rem; }
.fingerprint-card .section-note { color: var(--muted); }

.surface-status {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  min-height: 26px;
  padding: 4px 9px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 0.7rem;
  font-weight: 750;
}

.status-available { background: #def7e9; color: #17643c; }
.status-unavailable, .status-not-exposed { background: #edf1f6; color: #536175; }
.status-blocked, .status-restricted, .status-timed-out, .status-error { background: #fff0dd; color: #8a4c05; }

.compact-list { margin-top: 12px; }
.compact-list > div { grid-template-columns: minmax(120px, 0.8fr) minmax(0, 1.2fr); padding: 9px 0; }

.fingerprint-card details {
  margin-top: 12px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.fingerprint-card summary {
  padding-top: 12px;
  cursor: pointer;
  font-size: 0.76rem;
  font-weight: 700;
}

.fingerprint-card summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 3px; }

.fingerprint-card pre {
  max-width: 100%;
  max-height: 340px;
  margin: 10px 0 0;
  padding: 12px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--page);
  color: var(--text);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.69rem;
  line-height: 1.5;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
  word-break: break-word;
}

footer { padding: 30px 0 42px; text-align: center; }

@media (max-width: 820px) {
  .section-grid { grid-template-columns: 1fr; }
  .fingerprint-heading { grid-template-columns: 1fr; }
  .fingerprint-grid { grid-template-columns: 1fr; }
  .site-header { align-items: flex-start; flex-direction: column; gap: 3px; }
}

@media (max-width: 540px) {
  .site-header, main, footer { width: min(100% - 24px, 1180px); }
  .site-header { padding-top: 22px; }
  .hero { padding: 34px 24px; border-radius: 22px; }
  .result-card { padding: 22px 19px; border-radius: 18px; }
  .fingerprint-section { padding: 22px 16px; border-radius: 18px; }
  .fingerprint-summary { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .fingerprint-card { padding: 18px 15px; }
  .data-list > div { display: block; }
  .data-list dd { margin-top: 4px; text-align: left; }
}

@media (prefers-color-scheme: dark) {
  :root {
    --page: #09111f;
    --surface: rgba(16, 27, 46, 0.9);
    --surface-solid: #101b2e;
    --text: #edf4ff;
    --muted: #91a3bb;
    --line: #23334b;
    --accent: #69a4ff;
    --accent-strong: #a8c9ff;
    --accent-soft: #142c4f;
    --shadow: 0 16px 45px rgba(0, 0, 0, 0.22);
  }
  html { background: radial-gradient(circle at 15% 0%, rgba(45, 117, 227, 0.18), transparent 34rem), var(--page); }
  .hero { background: linear-gradient(135deg, #0c3d83, #0d56be 52%, #2473df); }
  .status-available { background: #123d2b; color: #9de2be; }
  .status-unavailable, .status-not-exposed { background: #243247; color: #b6c3d5; }
  .status-blocked, .status-restricted, .status-timed-out, .status-error { background: #4b3218; color: #ffd49c; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; }
}