/* ==========================================================================
   bot-signal demo — design tokens
   Palette follows the validated reference set (status colors are fixed and
   never reused as series/accent colors).
   ========================================================================== */

:root {
  color-scheme: light;

  --page: #f9f9f7;
  --surface: #fcfcfb;
  --surface-sunken: #f3f2ee;
  --ink: #0b0b0b;
  --ink-secondary: #52514e;
  --ink-muted: #898781;
  --hairline: #e1e0d9;
  --border: rgba(11, 11, 11, 0.1);

  --accent: #2a78d6;
  --accent-strong: #1c5cab;
  --accent-wash: rgba(42, 120, 214, 0.09);

  --good: #0ca30c;
  --good-text: #006300;
  --good-wash: rgba(12, 163, 12, 0.09);
  --warn: #b97800;
  --warn-wash: rgba(250, 178, 25, 0.14);
  --bad: #d03b3b;
  --bad-text: #b02a2a;
  --bad-wash: rgba(208, 59, 59, 0.08);

  --shadow: 0 1px 2px rgba(11, 11, 11, 0.04), 0 8px 24px rgba(11, 11, 11, 0.05);
  --shadow-lift: 0 2px 4px rgba(11, 11, 11, 0.05), 0 16px 40px rgba(11, 11, 11, 0.09);

  --radius: 12px;
  --radius-sm: 8px;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Code", "JetBrains Mono", Menlo, monospace;
}
[data-theme="dark"] {
  color-scheme: dark;

  --page: #0d0d0d;
  --surface: #1a1a19;
  --surface-sunken: #141413;
  --ink: #ffffff;
  --ink-secondary: #c3c2b7;
  --ink-muted: #898781;
  --hairline: #2c2c2a;
  --border: rgba(255, 255, 255, 0.1);

  --accent: #3987e5;
  --accent-strong: #6da7ec;
  --accent-wash: rgba(57, 135, 229, 0.14);

  --good: #0ca30c;
  --good-text: #34c534;
  --good-wash: rgba(12, 163, 12, 0.14);
  --warn: #fab219;
  --warn-wash: rgba(250, 178, 25, 0.12);
  --bad: #e05252;
  --bad-text: #ec8383;
  --bad-wash: rgba(208, 59, 59, 0.14);

  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lift: 0 2px 4px rgba(0, 0, 0, 0.45), 0 16px 40px rgba(0, 0, 0, 0.5);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;

    --page: #0d0d0d;
    --surface: #1a1a19;
    --surface-sunken: #141413;
    --ink: #ffffff;
    --ink-secondary: #c3c2b7;
    --ink-muted: #898781;
    --hairline: #2c2c2a;
    --border: rgba(255, 255, 255, 0.1);

    --accent: #3987e5;
    --accent-strong: #6da7ec;
    --accent-wash: rgba(57, 135, 229, 0.14);

    --good: #0ca30c;
    --good-text: #34c534;
    --good-wash: rgba(12, 163, 12, 0.14);
    --warn: #fab219;
    --warn-wash: rgba(250, 178, 25, 0.12);
    --bad: #e05252;
    --bad-text: #ec8383;
    --bad-wash: rgba(208, 59, 59, 0.14);

    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.35);
    --shadow-lift: 0 2px 4px rgba(0, 0, 0, 0.45), 0 16px 40px rgba(0, 0, 0, 0.5);
  }
}

/* ============================== base ==================================== */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 4.5rem;
}

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  background: var(--page);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
}

a:hover {
  color: var(--accent-strong);
}

code {
  font-family: var(--mono);
  font-size: 0.875em;
}

p code,
.section__desc code {
  background: var(--accent-wash);
  padding: 0.1em 0.35em;
  border-radius: 5px;
}

button {
  font: inherit;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.shell {
  width: min(1120px, 100% - 2.5rem);
  margin-inline: auto;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: -9999px;
  z-index: 99;
  padding: 0.6rem 1rem;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius-sm);
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

/* ============================== topbar ================================== */

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--page) 78%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--hairline);
}

.topbar__inner {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  height: 3.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--ink);
  text-decoration: none;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.brand__mark {
  width: 1.45rem;
  height: 1.45rem;
  color: var(--accent);
}

.brand__name {
  font-family: var(--mono);
  font-size: 0.95rem;
  white-space: nowrap;
}

@media (max-width: 420px) {
  .brand__name {
    font-size: 0.82rem;
  }
}

.topbar__nav {
  display: flex;
  gap: 0.25rem;
  margin-left: 0.5rem;
}

.topbar__nav a {
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 550;
  color: var(--ink-secondary);
  text-decoration: none;
}

.topbar__nav a:hover {
  background: var(--accent-wash);
  color: var(--ink);
}

.topbar__actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.icon-btn {
  display: grid;
  place-items: center;
  width: 2.1rem;
  height: 2.1rem;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink-secondary);
  cursor: pointer;
}

.icon-btn:hover {
  color: var(--ink);
  border-color: var(--border);
}

.icon-btn svg {
  width: 1.1rem;
  height: 1.1rem;
}

.icon-moon {
  display: none;
}

[data-theme="dark"] .icon-sun {
  display: none;
}

[data-theme="dark"] .icon-moon {
  display: block;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .icon-sun {
    display: none;
  }

  :root:not([data-theme="light"]) .icon-moon {
    display: block;
  }
}

.ghost-btn {
  padding: 0.38rem 0.85rem;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink-secondary);
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
}

.ghost-btn:hover {
  color: var(--ink);
  border-color: var(--border);
}

.ghost-btn--accent {
  border-color: transparent;
  background: var(--accent);
  color: #fff;
}

.ghost-btn--accent:hover {
  background: var(--accent-strong);
  color: #fff;
}

/* =============================== hero =================================== */

.hero {
  position: relative;
  padding: 4.5rem 0 3.5rem;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(52rem 26rem at 12% -12%, var(--accent-wash), transparent 60%),
    radial-gradient(40rem 22rem at 95% 8%, var(--accent-wash), transparent 65%);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 3rem;
  align-items: center;
}

.eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero__title {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 4.4vw, 3.1rem);
  line-height: 1.12;
  letter-spacing: -0.025em;
  font-weight: 750;
}

.hero__highlight {
  color: var(--ink-muted);
  transition: color 0.4s ease;
}

.hero__highlight.is-human {
  color: var(--good-text);
}

.hero__highlight.is-bot {
  color: var(--bad-text);
}

.hero__lede {
  margin: 0 0 1.5rem;
  max-width: 34rem;
  font-size: 1.08rem;
  color: var(--ink-secondary);
}

.install {
  display: inline-flex;
  align-items: stretch;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.install__cmd {
  padding: 0.65rem 0.95rem;
  font-size: 0.92rem;
  color: var(--ink);
}

.install__cmd::before {
  content: "$ ";
  color: var(--ink-muted);
}

.install__copy {
  display: grid;
  place-items: center;
  padding: 0 0.8rem;
  border: none;
  border-left: 1px solid var(--hairline);
  background: transparent;
  color: var(--ink-muted);
  cursor: pointer;
}

.install__copy:hover {
  color: var(--accent);
  background: var(--accent-wash);
}

.install__copy svg {
  width: 1.05rem;
  height: 1.05rem;
}

.install__copy.is-copied {
  color: var(--good-text);
}

.hero__meta {
  margin: 1rem 0 0;
  font-size: 0.88rem;
  color: var(--ink-muted);
}

/* scan card */

.scan-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.5rem 1.25rem;
  align-items: center;
  padding: 1.5rem;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-lift);
}

.scan-card__body {
  display: grid;
  gap: 0.1rem;
}

.scan-card__label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.scan-card__verdict {
  font-size: 1.45rem;
  letter-spacing: -0.015em;
  line-height: 1.2;
}

.scan-card--ok .scan-card__verdict {
  color: var(--good-text);
}

.scan-card--bad .scan-card__verdict {
  color: var(--bad-text);
}

.scan-card__detail {
  font-size: 0.9rem;
  color: var(--ink-secondary);
}

.scan-card__stats {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin: 0.9rem 0 0;
  padding: 0.9rem 0 0;
  border-top: 1px solid var(--hairline);
}

.scan-card__stats div {
  display: grid;
  gap: 0.1rem;
}

.scan-card__stats dt {
  font-size: 0.75rem;
  color: var(--ink-muted);
}

.scan-card__stats dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 1.02rem;
  font-weight: 600;
}

/* radar */

.radar {
  position: relative;
  width: 5rem;
  height: 5rem;
  border-radius: 50%;
  border: 1px solid var(--hairline);
  background:
    radial-gradient(circle, var(--accent-wash) 0%, transparent 68%),
    var(--surface-sunken);
  overflow: hidden;
}

.radar__ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid var(--hairline);
}

.radar__ring--1 {
  inset: 22%;
}

.radar__ring--2 {
  inset: 42%;
}

.radar__dot {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 5px;
  height: 5px;
  margin: -2.5px;
  border-radius: 50%;
  background: var(--accent);
}

.radar__sweep {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(
    from 0deg,
    color-mix(in srgb, var(--accent) 38%, transparent),
    transparent 26%
  );
  animation: radar-sweep 2.6s linear infinite;
}

.scan-card--ok .radar__sweep {
  background: conic-gradient(from 0deg, color-mix(in srgb, var(--good) 34%, transparent), transparent 26%);
  animation-duration: 5.5s;
}

.scan-card--ok .radar__dot {
  background: var(--good);
}

.scan-card--bad .radar__sweep {
  background: conic-gradient(from 0deg, color-mix(in srgb, var(--bad) 40%, transparent), transparent 26%);
  animation-duration: 1.4s;
}

.scan-card--bad .radar__dot {
  background: var(--bad);
}

@keyframes radar-sweep {
  to {
    transform: rotate(360deg);
  }
}

/* ============================== sections ================================ */

.section {
  padding: 3.5rem 0;
  border-top: 1px solid var(--hairline);
}

.section--alt {
  background: var(--surface-sunken);
}

.section__head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1rem 2rem;
  margin-bottom: 1.75rem;
}

.section__kicker {
  margin: 0 0 0.3rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.section__head h2 {
  margin: 0 0 0.5rem;
  font-size: 1.7rem;
  letter-spacing: -0.02em;
}

.section__desc {
  margin: 0;
  max-width: 46rem;
  color: var(--ink-secondary);
}

.section__actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

/* ============================== buttons ================================= */

.btn {
  padding: 0.55rem 1.05rem;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, transform 0.05s;
}

.btn:hover {
  border-color: var(--accent);
}

.btn:active {
  transform: translateY(1px);
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.btn__hint {
  font-weight: 500;
  color: var(--ink-muted);
}

.btn--primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn--primary:hover {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
}

.btn--primary .btn__hint {
  color: rgba(255, 255, 255, 0.75);
}

.btn--danger-ghost {
  border-color: color-mix(in srgb, var(--bad) 45%, transparent);
  color: var(--bad-text);
  background: transparent;
}

.btn--danger-ghost:hover {
  background: var(--bad-wash);
  border-color: var(--bad);
}

.btn--danger-ghost code {
  font-size: 0.85em;
}

/* ============================== banners ================================= */

.banner {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 0.9rem 1.1rem;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  background: var(--surface);
  margin-bottom: 1.25rem;
}

.banner--tight {
  margin-bottom: 1rem;
}

.banner__icon {
  flex: none;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 1rem;
  font-weight: 700;
  border: 1px solid var(--hairline);
  background: var(--surface-sunken);
  color: var(--ink-muted);
}

.banner__icon::before {
  content: "◌";
}

.banner--ok {
  border-color: color-mix(in srgb, var(--good) 32%, transparent);
  background: var(--good-wash);
}

.banner--ok .banner__icon {
  color: var(--good-text);
  border-color: color-mix(in srgb, var(--good) 40%, transparent);
}

.banner--ok .banner__icon::before {
  content: "✓";
}

.banner--bad {
  border-color: color-mix(in srgb, var(--bad) 36%, transparent);
  background: var(--bad-wash);
}

.banner--bad .banner__icon {
  color: var(--bad-text);
  border-color: color-mix(in srgb, var(--bad) 45%, transparent);
}

.banner--bad .banner__icon::before {
  content: "!";
}

.banner__text {
  display: grid;
  gap: 0.05rem;
  min-width: 0;
}

.banner__text strong {
  font-size: 1.02rem;
}

.banner__text span {
  font-size: 0.88rem;
  color: var(--ink-secondary);
  overflow-wrap: anywhere;
}

.banner .pill {
  margin-left: auto;
}

.pill {
  flex: none;
  padding: 0.28rem 0.7rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 750;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: 1px solid var(--hairline);
  color: var(--ink-muted);
  background: var(--surface);
}

.pill--ok {
  color: var(--good-text);
  border-color: color-mix(in srgb, var(--good) 40%, transparent);
  background: var(--good-wash);
}

.pill--bad {
  color: var(--bad-text);
  border-color: color-mix(in srgb, var(--bad) 45%, transparent);
  background: var(--bad-wash);
}

/* ============================ instant grid =============================== */

.toolbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.chips {
  display: flex;
  gap: 0.4rem;
}

.chip {
  padding: 0.32rem 0.85rem;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink-secondary);
  font-size: 0.86rem;
  font-weight: 600;
  cursor: pointer;
}

.chip:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.chip--on {
  background: var(--accent-wash);
  border-color: var(--accent);
  color: var(--accent-strong);
}

.toolbar__count {
  margin-left: auto;
  font-size: 0.88rem;
  color: var(--ink-muted);
  font-variant-numeric: tabular-nums;
}

.check-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(17.5rem, 1fr));
  gap: 0.7rem;
}

.check-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.18rem 0.9rem;
  align-content: start;
  padding: 0.85rem 1rem;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  background: var(--surface);
  animation: check-in 0.35s ease both;
}

@keyframes check-in {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
}

.check-card--flagged {
  border-color: color-mix(in srgb, var(--bad) 40%, transparent);
  background: var(--bad-wash);
}

.check-card--soft {
  border-color: color-mix(in srgb, var(--warn) 45%, transparent);
  background: var(--warn-wash);
}

.check-card__name {
  font-family: var(--mono);
  font-size: 0.84rem;
  font-weight: 650;
  overflow-wrap: anywhere;
}

.check-card__result {
  grid-row: 1 / 4;
  grid-column: 2;
  align-self: center;
  display: grid;
  gap: 0.05rem;
  min-width: 4.7rem;
  padding: 0.4rem 0.55rem;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  background: var(--surface-sunken);
  text-align: center;
}

.check-card__result-label {
  font-size: 0.62rem;
  font-weight: 750;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.check-card__result-value {
  font-family: var(--mono);
  font-size: 0.9rem;
  font-weight: 750;
  line-height: 1.1;
}

.check-card__result--pass .check-card__result-value {
  color: var(--good-text);
}

.check-card__result--flag .check-card__result-value {
  color: var(--bad-text);
}

.check-card__result--soft .check-card__result-value {
  color: var(--warn);
}

.check-card__result--na .check-card__result-value {
  color: var(--ink-muted);
}

.check-card__verdict {
  grid-column: 1;
  width: fit-content;
  padding: 0.12rem 0.45rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1px solid var(--hairline);
  background: var(--surface-sunken);
  color: var(--ink-muted);
}

.check-card__verdict--pass {
  color: var(--good-text);
  border-color: color-mix(in srgb, var(--good) 36%, transparent);
  background: var(--good-wash);
}

.check-card__verdict--flag {
  color: var(--bad-text);
  border-color: color-mix(in srgb, var(--bad) 40%, transparent);
  background: var(--bad-wash);
}

.check-card__verdict--soft {
  color: var(--warn);
  border-color: color-mix(in srgb, var(--warn) 45%, transparent);
  background: var(--warn-wash);
}

.check-card__verdict--na {
  color: var(--ink-muted);
}

.check-card__desc {
  grid-column: 1;
  font-size: 0.82rem;
  line-height: 1.45;
  color: var(--ink-secondary);
}

.check-grid__empty {
  grid-column: 1 / -1;
  padding: 2rem;
  text-align: center;
  color: var(--ink-muted);
  border: 1px dashed var(--hairline);
  border-radius: var(--radius-sm);
}

.sim-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-top: 1.5rem;
  padding: 0.9rem 1rem;
  border: 1px dashed color-mix(in srgb, var(--bad) 35%, transparent);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--bad-wash) 55%, transparent);
}

.sim-strip__label {
  font-size: 0.9rem;
  font-weight: 650;
  color: var(--ink-secondary);
}

/* =========================== behavioral ================================= */

.behavioral-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 1.25rem;
  align-items: start;
}

.trail-card,
.score-card {
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: 1.15rem;
}

.trail-card__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.trail-card__head h3 {
  margin: 0;
  font-size: 1.02rem;
}

.trail-card__hint {
  font-size: 0.8rem;
  color: var(--ink-muted);
}

.trail-canvas {
  display: block;
  width: 100%;
  height: 240px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  background:
    linear-gradient(var(--hairline) 1px, transparent 1px) 0 0 / 100% 24px,
    linear-gradient(90deg, var(--hairline) 1px, transparent 1px) 0 0 / 24px 100%,
    var(--surface-sunken);
  background-blend-mode: normal;
}

.trail-card__counters {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.5rem;
  margin-top: 0.9rem;
}

.counter {
  display: grid;
  gap: 0;
  text-align: center;
  padding: 0.5rem 0.25rem;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  background: var(--surface-sunken);
}

.counter__value {
  font-family: var(--mono);
  font-size: 1.05rem;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
}

.counter__label {
  font-size: 0.68rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.type-field {
  display: grid;
  gap: 0.3rem;
  margin-top: 0.9rem;
}

.type-field span {
  font-size: 0.8rem;
  font-weight: 650;
  color: var(--ink-muted);
}

.type-field input {
  width: 100%;
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-size: 0.95rem;
}

.type-field input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}

/* meter */

.meter {
  margin: 0 0 1.1rem;
}

.meter__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.45rem;
}

.meter__title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--ink-secondary);
}

.meter__value {
  font-family: var(--mono);
  font-size: 1.05rem;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
}

.meter__track {
  position: relative;
  height: 12px;
  margin-top: 1.4rem;
  border-radius: 999px;
  background: var(--surface-sunken);
  border: 1px solid var(--hairline);
}

.meter__fill {
  position: absolute;
  inset: 1px auto 1px 1px;
  width: 0%;
  max-width: calc(100% - 2px);
  border-radius: 999px;
  background: var(--good);
  transition: width 0.4s ease, background-color 0.4s ease;
}

.meter__fill--warn {
  background: var(--warn);
}

.meter__fill--bad {
  background: var(--bad);
}

.meter__threshold {
  position: absolute;
  left: var(--at);
  top: -5px;
  bottom: -5px;
  width: 2px;
  background: var(--ink-muted);
  border-radius: 1px;
}

.meter__threshold-label {
  position: absolute;
  top: -1.35rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.68rem;
  font-weight: 650;
  white-space: nowrap;
  color: var(--ink-muted);
}

.meter__scale {
  display: flex;
  justify-content: space-between;
  margin-top: 0.4rem;
  font-size: 0.75rem;
  color: var(--ink-muted);
}

/* signal list */

.signal-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.45rem;
}

.signal {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.1rem 0.75rem;
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  background: var(--surface-sunken);
  font-size: 0.85rem;
}

.signal--hit {
  border-color: color-mix(in srgb, var(--bad) 40%, transparent);
  background: var(--bad-wash);
}

.signal__id {
  font-family: var(--mono);
  font-weight: 650;
  font-size: 0.8rem;
}

.signal__state {
  grid-row: 1 / 3;
  grid-column: 2;
  align-self: center;
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.signal--hit .signal__state {
  color: var(--bad-text);
}

.signal__meta {
  color: var(--ink-secondary);
  font-size: 0.78rem;
}

.signal__weight {
  display: inline-block;
  vertical-align: 1px;
  width: 3rem;
  height: 4px;
  margin-left: 0.45rem;
  border-radius: 2px;
  background: var(--hairline);
  position: relative;
  overflow: hidden;
}

.signal__weight::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: var(--w);
  background: var(--ink-muted);
  border-radius: 2px;
}

.signal--hit .signal__weight::after {
  background: var(--bad);
}

/* ============================== server =================================== */

.server-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 1.25rem;
  align-items: start;
}

.signal-toggles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
  min-width: 0;
}

.toggle-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.9rem;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  background: var(--surface);
  min-width: 0;
}

.toggle-row--on {
  border-color: color-mix(in srgb, var(--bad) 38%, transparent);
  background: var(--bad-wash);
}

.toggle-row__text {
  display: grid;
  gap: 0.05rem;
  min-width: 0;
}

.toggle-row__id {
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 650;
  overflow-wrap: anywhere;
}

.toggle-row__desc {
  font-size: 0.8rem;
  color: var(--ink-secondary);
  overflow-wrap: anywhere;
}

.toggle-row__weight {
  justify-self: end;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-muted);
  font-variant-numeric: tabular-nums;
}

.switch {
  flex: none;
  position: relative;
  width: 2.4rem;
  height: 1.35rem;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: var(--surface-sunken);
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.switch::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: calc(1.35rem - 6px);
  height: calc(1.35rem - 6px);
  border-radius: 50%;
  background: var(--ink-muted);
  transition: transform 0.15s, background 0.15s;
}

.switch[aria-checked="true"] {
  background: var(--bad);
  border-color: var(--bad);
}

.switch[aria-checked="true"]::after {
  transform: translateX(1.05rem);
  background: #fff;
}

.server-result {
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: 1.15rem;
  min-width: 0;
}

.server-code {
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  background: var(--surface-sunken);
  overflow: hidden;
}

.server-code__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0.9rem;
  border-bottom: 1px solid var(--hairline);
  font-size: 0.8rem;
  font-weight: 650;
  color: var(--ink-muted);
}

.server-code pre {
  margin: 0;
  padding: 0.85rem 0.95rem;
  overflow-x: auto;
  font-size: 0.8rem;
  line-height: 1.55;
}

.preset-label {
  font-size: 0.85rem;
  font-weight: 650;
  color: var(--ink-secondary);
}

.select {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-size: 0.9rem;
  cursor: pointer;
}

/* ============================ quick start ================================ */

.snippet-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(19rem, 1fr));
  gap: 1rem;
}

.snippet {
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.snippet__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--hairline);
}

.snippet__head h3 {
  margin: 0;
  font-size: 0.92rem;
}

.snippet pre {
  margin: 0;
  padding: 1rem;
  overflow-x: auto;
  font-size: 0.8rem;
  line-height: 1.6;
}

.copy-mini {
  flex: none;
  padding: 0.25rem 0.7rem;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink-secondary);
  font-size: 0.76rem;
  font-weight: 650;
  cursor: pointer;
}

.copy-mini:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.copy-mini.is-copied {
  border-color: color-mix(in srgb, var(--good) 45%, transparent);
  color: var(--good-text);
}

/* code tokens */

.tok-kw {
  color: var(--accent-strong);
  font-weight: 600;
}

.tok-str {
  color: var(--good-text);
}

.tok-fn {
  color: var(--ink);
  font-weight: 600;
}

.tok-num {
  color: var(--warn);
}

/* ============================== footer =================================== */

.footer {
  border-top: 1px solid var(--hairline);
  padding: 2rem 0 3rem;
  color: var(--ink-muted);
  font-size: 0.9rem;
}

.footer__inner {
  display: grid;
  gap: 0.35rem;
}

.footer p {
  margin: 0;
}

.footer__ua {
  font-family: var(--mono);
  font-size: 0.75rem;
  overflow-wrap: anywhere;
}

/* ============================ responsive ================================= */

@media (max-width: 960px) {
  .hero__inner,
  .behavioral-grid,
  .server-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero {
    padding-top: 3rem;
  }

  .topbar__nav {
    display: none;
  }
}

@media (max-width: 620px) {
  .trail-card__counters {
    grid-template-columns: repeat(3, 1fr);
  }

  .scan-card__stats {
    grid-template-columns: 1fr 1fr;
  }

  .toggle-row {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: start;
    gap: 0.65rem;
  }

  .toggle-row__weight {
    grid-column: 2;
    justify-self: start;
  }

  .section {
    padding: 2.5rem 0;
  }

  .banner .pill {
    display: none;
  }
}