/* Herdr-inspired zigttp home redesign. */

.zigttp-home {
  --z-bg: #f4f7f1;
  --z-bg-soft: #e7eee7;
  --z-paper: #fffdf8;
  --z-paper-muted: #f3f6ef;
  --z-ink: #151a21;
  --z-ink-soft: #303944;
  --z-muted: #556271;
  --z-line: #d4ddd3;
  --z-line-strong: #bac8bb;
  --z-terminal: #151a21;
  --z-terminal-2: #202731;
  --z-terminal-3: #2a3340;
  --z-accent: #6eaddb;
  --z-accent-dark: #2a6796;
  --z-accent-soft: #e4f2f7;
  --z-blue: #2563eb;
  --z-green: #2f8a4f;
  --z-yellow: #9a6a00;
  --z-red: #c43f5f;
  --z-shadow-sm: 0 6px 18px rgb(25 37 31 / 0.06);
  --z-shadow-md: 0 14px 40px rgb(25 37 31 / 0.09);
  --z-shadow-lg: 0 24px 80px rgb(25 37 31 / 0.12);
  --z-shadow: var(--z-shadow-lg);
  --z-radius-lg: 24px;
  --z-radius-md: 16px;
  --z-radius-sm: 10px;
  --z-max: 1160px;
  --z-mono: "JetBrains Mono", "SF Mono", Consolas, ui-monospace, monospace;
  --z-sans:
    "Outfit",
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  min-width: 320px;
  margin: 0;
  background:
    radial-gradient(
      circle at 12% 0%,
      rgb(110 173 219 / 0.14),
      transparent 30rem
    ),
    radial-gradient(
    circle at 92% 4rem,
    rgb(110 173 219 / 0.12),
    transparent 28rem
  ),
    linear-gradient(180deg, #fbfcf8 0%, var(--z-bg) 34rem, #e8efe1 100%);
  color: var(--z-ink);
  font-family: var(--z-sans);
  font-size: 16px;
  line-height: 1.6;
}

.zigttp-home::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.35;
  background-image:
    linear-gradient(rgb(21 26 33 / 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgb(21 26 33 / 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: linear-gradient(180deg, black, transparent 70%);
  mask-image: linear-gradient(180deg, black, transparent 70%);
}

.zigttp-home a {
  color: inherit;
  text-decoration: none;
}

.zigttp-home a:not(.z-button):hover {
  color: var(--z-accent-dark);
}

.zigttp-home code,
.zigttp-home pre {
  font-family: var(--z-mono);
}

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

.skip-link {
  position: fixed;
  left: 1rem;
  top: 1rem;
  z-index: 1000;
  transform: translateY(-150%);
  border-radius: 999px;
  background: var(--z-terminal);
  color: var(--z-paper);
  padding: 0.65rem 0.9rem;
}

.skip-link:focus {
  transform: translateY(0);
}

.z-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgb(212 221 211 / 0.78);
  background: rgb(244 247 241 / 0.8);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.z-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: var(--z-max);
  margin: 0 auto;
  padding: 0.85rem 1.25rem;
}

.z-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--z-ink);
  font-family: var(--z-mono);
  font-weight: 700;
  letter-spacing: 0;
  white-space: nowrap;
}

.z-brand img {
  width: 38px;
  height: 38px;
  border: 1px solid rgb(186 200 187 / 0.78);
  border-radius: 13px;
  background: #dce3dd;
  box-shadow: 0 10px 28px rgb(21 26 33 / 0.13);
}

.z-brand small {
  border: 1px solid var(--z-line);
  border-radius: 999px;
  color: var(--z-muted);
  font-family: var(--z-sans);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0;
  padding: 0.18rem 0.45rem;
}

.z-nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  color: var(--z-muted);
  font-size: 0.92rem;
}

.z-nav-links a,
.z-footer a,
.z-inline-links a {
  transition: color 0.16s ease, border-color 0.16s ease, background 0.16s ease;
}

.z-nav-links a.active {
  color: var(--z-accent-dark);
  font-weight: 750;
}

.z-nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 2.3rem;
  padding: 0 1rem;
  border: 1px solid var(--z-line-strong);
  border-radius: 999px;
  background: rgb(255 253 248 / 0.74);
  color: var(--z-ink-soft);
  font-size: 0.9rem;
  font-weight: 650;
}

.z-nav-cta:hover {
  border-color: var(--z-accent-dark);
  background: var(--z-accent-soft);
}

.z-menu-button {
  display: none;
  width: 2.55rem;
  height: 2.55rem;
  place-items: center;
  gap: 0.25rem;
  border: 1px solid var(--z-line-strong);
  border-radius: 999px;
  background: rgb(255 253 248 / 0.78);
  color: var(--z-ink);
  cursor: pointer;
}

.z-menu-button span {
  display: block;
  width: 1.1rem;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transition: opacity 0.16s ease, transform 0.16s ease;
}

.z-menu-button[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.z-menu-button[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.z-menu-button[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.z-hero,
.z-section,
.z-footer,
.z-final-cta {
  max-width: var(--z-max);
  margin: 0 auto;
  padding-inline: 1.25rem;
}

.z-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(320px, 0.78fr) minmax(560px, 1.22fr);
  gap: 3.25rem;
  align-items: center;
  max-width: 1280px;
  min-height: min(860px, calc(100svh - 108px));
  overflow: hidden;
  padding-top: 4.25rem;
  padding-bottom: 3.5rem;
}

.z-hero-copy,
.z-product-shot {
  position: relative;
  z-index: 1;
}

.z-hero-field {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.z-hero-field::before,
.z-hero-field::after {
  content: "{ proof }";
  position: absolute;
  color: rgb(110 173 219 / 0.08);
  font-family: var(--z-mono);
  font-size: clamp(4rem, 10vw, 9rem);
  font-weight: 700;
  letter-spacing: 0;
  white-space: nowrap;
}

.z-hero-field::before {
  top: 8%;
  right: 5%;
  transform: rotate(-8deg);
}

.z-hero-field::after {
  bottom: -3%;
  left: 0;
  color: rgb(37 99 235 / 0.035);
  content: "safe_with_additions";
  font-size: clamp(2.8rem, 7vw, 6.5rem);
  transform: rotate(5deg);
}

.z-eyebrow,
.z-section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 1rem;
  color: var(--z-accent-dark);
  font-family: var(--z-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.z-status-dot {
  display: inline-block;
  width: 0.64rem;
  height: 0.64rem;
  border-radius: 999px;
  box-shadow: 0 0 0 4px rgb(110 173 219 / 0.1);
  vertical-align: middle;
}

.z-dot-safe {
  background: var(--z-green);
}

.z-dot-review {
  background: var(--z-yellow);
}

.z-dot-blocked {
  background: var(--z-red);
}

.z-dot-idle {
  background: var(--z-blue);
}

.z-hero h1,
.z-section h2,
.z-final-cta h2 {
  margin: 0;
  color: var(--z-ink);
  font-weight: 800;
  letter-spacing: 0;
  line-height: 1;
  text-wrap: balance;
}

.z-hero h1 {
  max-width: 13ch;
  font-size: 4.25rem;
}

.z-hero-lede {
  max-width: 43rem;
  margin: 1.35rem 0 0;
  color: var(--z-ink-soft);
  font-size: clamp(1.04rem, 1.8vw, 1.21rem);
  font-weight: 500;
  line-height: 1.55;
}

.z-hero-lede code {
  border: 1px solid var(--z-line);
  border-radius: 7px;
  background: rgb(255 253 248 / 0.72);
  color: var(--z-accent-dark);
  font-size: 0.88em;
  padding: 0.08rem 0.26rem;
}

.z-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.6rem;
}

.z-hero-actions.center {
  justify-content: center;
}

.z-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  border-radius: 999px;
  padding: 0.7rem 1.05rem;
  font-weight: 750;
  transition:
    transform 0.16s ease,
    background 0.16s ease,
    border-color 0.16s ease;
}

.z-button:hover {
  transform: translateY(-1px);
}

.z-button-primary {
  border: 1px solid var(--z-accent-dark);
  background: var(--z-accent);
  color: #10243a;
}

.z-button-primary:hover {
  background: var(--z-accent-dark);
  color: #fffdf8;
}

.z-button-secondary {
  border: 1px solid var(--z-line-strong);
  background: rgb(255 253 248 / 0.72);
  color: var(--z-ink-soft);
}

.z-button-secondary:hover {
  border-color: var(--z-accent-dark);
  background: var(--z-accent-soft);
}

.z-install-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 0.7rem;
  align-items: center;
  max-width: 46rem;
  margin-top: 1.15rem;
  border: 1px solid var(--z-line-strong);
  border-radius: var(--z-radius-md);
  background: rgb(255 253 248 / 0.85);
  box-shadow: var(--z-shadow-md);
  padding: 0.72rem 0.8rem;
}

.z-install-card code {
  overflow: hidden;
  color: var(--z-ink-soft);
  font-size: 0.78rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.z-prompt {
  color: var(--z-accent-dark);
  font-family: var(--z-mono);
  font-weight: 800;
}

.z-install-card button {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  border: 1px solid var(--z-line);
  border-radius: 999px;
  background: var(--z-paper-muted);
  color: var(--z-ink-soft);
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 800;
  padding: 0.42rem 0.85rem;
}

.z-install-card button:hover {
  background: var(--z-accent-soft);
}

.z-hero-note {
  max-width: 42rem;
  margin: 0.95rem 0 0;
  color: var(--z-muted);
  font-size: 0.88rem;
  font-weight: 650;
}

.z-product-shot {
  min-width: 0;
  transform: rotate(1deg);
}

.z-product-shot figcaption {
  margin-top: 0.85rem;
  color: var(--z-muted);
  font-size: 0.85rem;
  font-weight: 700;
  text-align: center;
}

.z-studio-mock {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  min-height: 490px;
  overflow: hidden;
  border: 1px solid rgb(42 103 150 / 0.28);
  border-radius: var(--z-radius-lg);
  background: var(--z-terminal);
  box-shadow: var(--z-shadow);
  color: #e8edf1;
  font-family: var(--z-mono);
}

.z-studio-sidebar {
  display: flex;
  flex-direction: column;
  gap: 0.52rem;
  border-right: 1px solid rgb(255 255 255 / 0.08);
  background: #10141a;
  padding: 1rem 0.78rem;
}

.z-sidebar-title,
.z-sidebar-row {
  display: flex;
  justify-content: space-between;
  color: #96a0ac;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.z-surface,
.z-proof-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.55rem;
  align-items: center;
  border-radius: 13px;
  padding: 0.58rem;
}

.z-surface.active {
  background: rgb(217 238 233 / 0.1);
}

.z-surface strong,
.z-proof-item strong {
  display: block;
  overflow: hidden;
  color: #f6f8fb;
  font-size: 0.76rem;
  line-height: 1.1;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.z-surface small,
.z-proof-item small {
  display: block;
  overflow: hidden;
  color: #96a0ac;
  font-size: 0.66rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.z-sidebar-spacer {
  flex: 1;
  min-height: 0.6rem;
}

.z-proof-item > span {
  display: grid;
  place-items: center;
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 8px;
  background: rgb(47 138 79 / 0.18);
  color: #7fd59b;
  font-weight: 900;
}

.z-studio-main {
  min-width: 0;
  background:
    radial-gradient(circle at 88% 8%, rgb(37 99 235 / 0.16), transparent 16rem),
    var(--z-terminal);
}

.z-studio-tabs {
  display: flex;
  gap: 0.35rem;
  align-items: center;
  overflow: hidden;
  border-bottom: 1px solid rgb(255 255 255 / 0.08);
  padding: 0.85rem 0.9rem 0;
}

.z-studio-tabs span {
  border: 1px solid rgb(255 255 255 / 0.08);
  border-bottom: 0;
  border-radius: 12px 12px 0 0;
  background: rgb(255 255 255 / 0.04);
  color: #9da7b3;
  font-size: 0.68rem;
  font-weight: 800;
  padding: 0.46rem 0.68rem;
  white-space: nowrap;
}

.z-studio-tabs span.active {
  background: var(--z-terminal-2);
  color: #f6f8fb;
}

.z-studio-tabs span:last-child {
  margin-left: auto;
}

.z-studio-panes {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(220px, 0.75fr);
  gap: 0.8rem;
  min-width: 0;
  padding: 0.9rem;
}

.z-code-pane,
.z-verdict-pane,
.z-code-card {
  min-width: 0;
  border: 1px solid rgb(255 255 255 / 0.08);
  border-radius: var(--z-radius-md);
  background: var(--z-terminal-2);
}

.z-code-pane.focused {
  box-shadow: inset 0 0 0 1px rgb(217 238 233 / 0.18);
}

.z-pane-title {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid rgb(255 255 255 / 0.08);
  color: #9da7b3;
  font-size: 0.68rem;
  font-weight: 800;
  padding: 0.72rem 0.82rem;
}

.z-pane-title em {
  color: #6fcf97;
  font-style: normal;
}

.z-code-pane pre,
.z-verdict-pane pre,
.z-code-card pre {
  margin: 0;
  overflow: auto;
  padding: 0.9rem;
}

.z-code-pane code,
.z-verdict-pane code,
.z-code-card code {
  color: #d8dee8;
  font-size: 0.72rem;
  line-height: 1.72;
}

.z-token-key,
.z-cmd {
  color: #8ab4ff;
}

.z-token-str,
.z-str {
  color: #96d49c;
}

.z-muted {
  color: #8e99a6;
}

.z-safe {
  color: #7fd59b;
}

.z-err {
  color: #ff8b96;
  font-weight: 700;
}

.z-agent {
  color: #8ab4ff;
  font-weight: 700;
}

.z-verdict-pane {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.z-verdict {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin: 0.9rem;
  border-radius: 18px;
  padding: 1rem;
}

.z-verdict-safe {
  background: rgb(47 138 79 / 0.16);
  color: #9be7b0;
}

.z-verdict span {
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.1em;
}

.z-verdict strong {
  font-size: 2rem;
  letter-spacing: 0;
}

.z-verdict-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.4rem;
  padding: 0 0.9rem 0.9rem;
}

.z-verdict-grid span {
  color: #8e99a6;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.z-verdict-grid strong {
  margin-bottom: 0.25rem;
  color: #f4f7fb;
  font-size: 0.78rem;
}

.z-section {
  padding-top: 6rem;
  padding-bottom: 6rem;
}

.z-heading-wide {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.72fr);
  gap: 3rem;
  align-items: end;
  margin-bottom: 2.25rem;
}

/* The playground is the centerpiece: give its heading a clean, single-column
   runway instead of the two-column heading layout, which left dead space above
   the title when the intro paragraph ran longer than the heading. */
.z-playground .z-heading-wide {
  display: block;
  max-width: 760px;
}

.z-playground .z-heading-wide p {
  margin-top: 1rem;
}

.z-section-heading {
  max-width: 760px;
  margin-bottom: 2.25rem;
}

.z-heading-wide h2,
.z-section-heading h2,
.z-api-copy h2,
.z-final-cta h2 {
  font-size: 4.7rem;
}

.z-heading-wide p,
.z-api-copy p,
.z-final-cta p {
  margin: 0;
  color: var(--z-ink-soft);
  font-size: 1.05rem;
  line-height: 1.68;
}

.z-contrast-grid,
.z-pillar-grid {
  display: grid;
  gap: 1rem;
}

.z-contrast-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.z-contrast-grid article,
.z-pillar-grid article {
  border: 1px solid var(--z-line);
  border-radius: var(--z-radius-md);
  background: rgb(255 253 248 / 0.76);
  box-shadow: 0 12px 36px rgb(35 29 21 / 0.05);
}

.z-contrast-grid article {
  padding: 1.15rem;
}

.z-contrast-grid span {
  display: block;
  margin-bottom: 0.65rem;
  color: var(--z-accent-dark);
  font-family: var(--z-mono);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.z-contrast-grid p,
.z-pillar-grid p {
  margin: 0;
  color: var(--z-muted);
  font-size: 0.96rem;
  line-height: 1.6;
}

.z-table-wrap {
  overflow: hidden;
  border: 1px solid var(--z-line-strong);
  border-radius: var(--z-radius-lg);
  background: rgb(255 253 248 / 0.84);
  box-shadow: var(--z-shadow);
}

.z-table-wrap table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.z-table-wrap th,
.z-table-wrap td {
  border-bottom: 1px solid var(--z-line);
  padding: 1rem;
  text-align: left;
}

.z-table-wrap tr:last-child td {
  border-bottom: 0;
}

.z-table-wrap th {
  color: var(--z-muted);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.z-table-wrap td:first-child {
  color: var(--z-ink);
  font-weight: 750;
}

.z-table-wrap th:last-child,
.z-table-wrap td:last-child {
  background: var(--z-accent-soft);
  color: var(--z-accent-dark);
  font-weight: 850;
}

/* De-emphasize the competitor columns so the proven zigttp column carries
   the eye. The first column (capability) and last column (zigttp) keep their
   weight; the middle three read as muted. */
.z-table-wrap td:not(:first-child):not(:last-child) {
  color: var(--z-muted);
}

.z-compare-cards {
  display: none;
}

.z-api-section {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(420px, 1fr);
  gap: 3rem;
  align-items: center;
}

/* Expert agent: inverted two-column (terminal left, copy right) so this
   flagship beat reads differently from the prose-left sections around it. */
.z-expert {
  display: grid;
  grid-template-columns: minmax(420px, 1fr) minmax(0, 0.82fr);
  gap: 3rem;
  align-items: center;
}

.z-expert-terminal {
  background:
    radial-gradient(
      circle at 12% 0%,
      rgb(110 173 219 / 0.22),
      transparent 16rem
    ),
    var(--z-terminal);
}

/* Compiler-in-the-loop: the loop diagram leads, while the transcript stays
   available on demand for visitors who want the full compiler exchange. */
.z-loop {
  margin: 0 0 3.25rem;
}

.z-loop-head {
  margin: 0 0 1.4rem;
  color: var(--z-muted);
  font-family: var(--z-mono);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.z-loop-flow {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.z-loop-step {
  position: relative;
  padding: 1.15rem;
  border-radius: var(--z-radius-md);
  background: var(--z-paper);
  box-shadow: 0 1px 0 rgb(35 29 21 / 0.04), 0 14px 34px rgb(35 29 21 / 0.07);
}

/* Forward connector between steps, sitting in the column gap. */
.z-loop-step:not(:last-child)::after {
  content: "→";
  position: absolute;
  top: 50%;
  right: -1.08rem;
  transform: translateY(-50%);
  color: var(--z-line-strong);
  font-weight: 900;
}

/* The step that hands off to Proven reads as a gate, not just another arrow.
   Keyed off the proven step's class, so adding or removing a step can't
   silently misplace the gate. */
.z-loop-step:has(+ .z-loop-step-proven)::after {
  content: "✓";
  color: var(--z-accent-dark);
}

.z-loop-num {
  display: block;
  margin-bottom: 0.6rem;
  color: var(--z-accent-dark);
  font-family: var(--z-mono);
  font-size: 0.75rem;
  font-weight: 900;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.05em;
}

.z-loop-step strong {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--z-ink);
  font-size: 1.02rem;
  letter-spacing: 0;
  text-wrap: balance;
}

.z-loop-step p {
  margin: 0;
  color: var(--z-muted);
  font-size: 0.85rem;
  line-height: 1.5;
  text-wrap: pretty;
}

.z-loop-step-proven {
  background:
    radial-gradient(
      circle at 80% 0%,
      rgb(110 173 219 / 0.28),
      transparent 11rem
    ),
    var(--z-accent-soft);
  box-shadow:
    0 1px 0 rgb(42 103 150 / 0.12),
    0 18px 40px rgb(42 103 150 / 0.16);
}

.z-loop-step-proven .z-status-dot {
  display: block;
  margin-bottom: 0.6rem;
}

.z-loop-cycle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  margin-top: 1.25rem;
  color: var(--z-muted);
  font-family: var(--z-mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
}

.z-loop-cycle::before {
  content: "↺";
  font-size: 1.05rem;
  line-height: 1;
  color: var(--z-accent-dark);
}

.z-expert-contrast {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 2.5rem;
}

/* Differentiate the two outcomes by weight, not color alone: the dot plus the
   label carry the meaning, the surface treatment reinforces it. */
.z-expert-contrast span {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.z-contrast-weak {
  background: rgb(246 240 230 / 0.6);
}

.z-contrast-weak p {
  color: var(--z-muted);
}

.z-contrast-strong {
  border-color: var(--z-accent);
  background:
    radial-gradient(
      circle at 88% 0%,
      rgb(110 173 219 / 0.18),
      transparent 13rem
    ),
    var(--z-accent-soft);
  box-shadow: var(--z-shadow-md);
}

.z-expert-note {
  max-width: 60rem;
  margin-top: 1.75rem;
  color: var(--z-muted);
  font-size: 0.92rem;
  line-height: 1.6;
  text-wrap: pretty;
}

.z-expert-note code {
  color: var(--z-accent-dark);
}

.z-expert-trust {
  margin: 1.25rem 0 0;
}

.z-expert-terminal summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1rem;
  color: #e8edf1;
  cursor: pointer;
  font-family: var(--z-mono);
  font-size: 0.78rem;
  font-weight: 800;
  list-style: none;
}

.z-expert-terminal summary::-webkit-details-marker {
  display: none;
}

.z-expert-terminal summary::after {
  content: "+";
  display: grid;
  flex-shrink: 0;
  place-items: center;
  width: 1.35rem;
  height: 1.35rem;
  border: 1px solid rgb(255 255 255 / 0.16);
  border-radius: 999px;
  color: #9da7b3;
}

.z-expert-terminal[open] summary::after {
  content: "-";
}

.z-expert-terminal summary em {
  margin-left: auto;
  color: #8e99a6;
  font-style: normal;
  font-weight: 700;
}

.z-check-list {
  display: grid;
  gap: 0.75rem;
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
}

.z-check-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.65rem;
  color: var(--z-ink-soft);
  font-weight: 650;
}

.z-check-list li::before {
  content: "✓";
  display: grid;
  place-items: center;
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 8px;
  background: var(--z-accent-soft);
  color: var(--z-accent-dark);
  font-size: 0.8rem;
  font-weight: 900;
}

.z-code-card {
  overflow: hidden;
  background:
    radial-gradient(circle at 82% 0%, rgb(37 99 235 / 0.16), transparent 14rem),
    var(--z-terminal);
  box-shadow: var(--z-shadow);
}

.z-code-card pre {
  padding: 1.25rem;
}

.z-code-card code {
  font-size: 0.83rem;
  line-height: 1.78;
}

.z-pillar-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.z-pillar-grid article {
  min-height: 18rem;
  padding: 1.2rem;
}

.z-card-index {
  display: block;
  margin-bottom: 4.5rem;
  color: var(--z-accent-dark);
  font-family: var(--z-mono);
  font-size: 0.78rem;
  font-weight: 900;
}

.z-pillar-grid h3 {
  margin: 0 0 0.7rem;
  color: var(--z-ink);
  font-size: 1.2rem;
  letter-spacing: 0;
  line-height: 1.05;
}

.z-pillar-grid code {
  color: var(--z-accent-dark);
  font-size: 0.86em;
}

.z-api-copy {
  max-width: 30rem;
}

.z-inline-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.2rem;
}

.z-inline-links a {
  border-bottom: 1px solid var(--z-line-strong);
  color: var(--z-accent-dark);
  font-weight: 800;
}

.z-state-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin-top: 1.5rem;
  color: var(--z-muted);
  font-size: 0.86rem;
  font-weight: 800;
}

.z-state-legend span {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.z-calm-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: -0.6rem 0 2rem;
  color: var(--z-muted);
  font-family: var(--z-mono);
  font-size: 0.74rem;
  font-weight: 800;
}

.z-calm-strip span {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  border: 1px solid var(--z-line);
  border-radius: 999px;
  background: rgb(255 253 248 / 0.7);
  padding: 0.42rem 0.65rem;
}

.z-calm-strip .z-status-dot {
  width: 0.5rem;
  height: 0.5rem;
  box-shadow: none;
}

/* Dark closing slab: a deliberate punctuation against the cream sections, using
   the same terminal ink as the studio mock and playground so the page ends on a
   strong, on-brand beat instead of one more soft panel. */
.z-final-cta {
  margin-bottom: 4rem;
  border: 1px solid var(--z-terminal-3);
  border-radius: var(--z-radius-lg);
  background:
    radial-gradient(
      circle at 80% 0%,
      rgb(110 173 219 / 0.3),
      transparent 22rem
    ),
    var(--z-terminal);
  box-shadow: var(--z-shadow-lg);
  padding-top: 4rem;
  padding-bottom: 4rem;
  text-align: center;
}

.z-final-cta h2 {
  color: #f4f7fb;
  max-width: 54rem;
  margin-inline: auto;
}

.z-final-cta h2 code {
  display: inline-block;
  color: inherit;
  font-size: 0.78em;
  letter-spacing: 0;
  white-space: nowrap;
}

.z-final-cta p {
  max-width: 40rem;
  margin: 1rem auto 0;
  color: #aeb7c2;
}

.z-final-cta .z-section-kicker {
  justify-content: center;
  color: #7fd59b;
}

/* Secondary CTA reads as a light outline on the dark slab. */
.z-final-cta .z-button-secondary {
  border-color: rgb(255 255 255 / 0.22);
  background: rgb(255 255 255 / 0.04);
  color: #e8edf1;
}

.z-final-cta .z-button-secondary:hover {
  border-color: var(--z-accent-dark);
  background: rgb(110 173 219 / 0.3);
}

.z-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-top: 1px solid var(--z-line);
  color: var(--z-muted);
  padding-top: 1.5rem;
  padding-bottom: 3rem;
}

.z-footer div {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: flex-end;
  font-size: 0.9rem;
  font-weight: 700;
}

@media (max-width: 1080px) {
  .z-hero,
  .z-api-section,
  .z-expert,
  .z-heading-wide {
    grid-template-columns: 1fr;
  }

  /* Lead with the heading, not the terminal, when the expert section stacks. */
  .z-expert .z-expert-copy {
    order: -1;
  }

  .z-loop-flow,
  .z-expert-contrast {
    grid-template-columns: 1fr;
  }

  .z-loop-step:not(:last-child)::after {
    display: none;
  }

  .z-hero {
    min-height: auto;
    padding-top: 4rem;
  }

  .z-product-shot {
    max-width: 790px;
    transform: none;
  }

  .z-pillar-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .z-nav {
    padding-inline: 1rem;
  }

  .z-menu-button {
    display: grid;
  }

  .z-nav-cta {
    display: none;
  }

  .z-nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    border-bottom: 1px solid var(--z-line);
    background: rgb(244 247 241 / 0.96);
    padding: 0.4rem 1rem 0.8rem;
  }

  .z-nav-links.open {
    display: flex;
  }

  .z-nav-links a {
    border-bottom: 1px solid var(--z-line);
    padding: 0.85rem 0;
  }

  .z-nav-links a:last-child {
    border-bottom: 0;
  }

  .z-brand small {
    display: none;
  }

  .z-hero,
  .z-section,
  .z-footer,
  .z-final-cta {
    padding-inline: 1rem;
  }

  .z-hero {
    gap: 2rem;
    padding-top: 3.25rem;
    padding-bottom: 2.5rem;
  }

  .z-hero h1 {
    font-size: 3.25rem;
  }

  .z-eyebrow,
  .z-section-kicker {
    max-width: 100%;
    line-height: 1.35;
    overflow-wrap: anywhere;
  }

  .z-hero-lede {
    font-size: 1rem;
  }

  .z-install-card {
    grid-template-columns: auto minmax(0, 1fr);
    overflow: hidden;
  }

  .z-install-card code {
    min-width: 0;
    overflow: visible;
    overflow-wrap: anywhere;
    text-overflow: clip;
    white-space: normal;
  }

  .z-install-card button {
    grid-column: 1 / -1;
    justify-self: start;
    min-height: 2.75rem;
  }

  .z-product-shot,
  .z-studio-mock {
    width: 100%;
    max-width: 100%;
    min-width: 0;
  }

  .z-studio-mock {
    grid-template-columns: 1fr;
    min-height: 0;
    border-radius: 20px;
  }

  .z-studio-sidebar {
    display: none;
  }

  .z-studio-panes {
    grid-template-columns: 1fr;
  }

  .z-code-pane,
  .z-verdict-pane {
    max-width: 100%;
    overflow: hidden;
  }

  .z-pane-title {
    min-width: 0;
  }

  .z-pane-title span,
  .z-pane-title em {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .z-section {
    padding-top: 4rem;
    padding-bottom: 4rem;
  }

  .z-heading-wide h2,
  .z-section-heading h2,
  .z-api-copy h2,
  .z-final-cta h2 {
    font-size: 2.75rem;
  }

  .z-final-cta h2 code {
    white-space: normal;
  }

  .z-contrast-grid,
  .z-pillar-grid {
    grid-template-columns: 1fr;
  }

  .z-expert {
    gap: 1.5rem;
  }

  .z-expert .z-expert-copy {
    order: 0;
  }

  .z-expert-terminal {
    order: -1;
  }

  .z-table-wrap {
    display: none;
  }

  .z-compare-cards {
    display: grid;
    gap: 0.75rem;
  }

  .z-compare-cards article {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.5rem;
    border: 1px solid var(--z-line);
    border-radius: var(--z-radius-md);
    background: rgb(255 253 248 / 0.76);
    padding: 1rem;
  }

  .z-compare-cards h3 {
    grid-column: 1 / -1;
    margin: 0 0 0.25rem;
    color: var(--z-ink);
    font-size: 1.05rem;
    letter-spacing: 0;
  }

  .z-compare-cards span {
    display: grid;
    gap: 0.25rem;
    border-radius: 14px;
    background: var(--z-paper-muted);
    color: var(--z-muted);
    font-size: 0.7rem;
    font-weight: 850;
    padding: 0.65rem 0.5rem;
    text-align: center;
    text-transform: uppercase;
  }

  .z-compare-cards b {
    color: var(--z-ink-soft);
    font-size: 0.86rem;
    text-transform: none;
  }

  .z-compare-cards .zigttp {
    background: var(--z-accent-soft);
    color: var(--z-accent-dark);
  }

  .z-pillar-grid article {
    min-height: auto;
  }

  .z-card-index {
    margin-bottom: 2.25rem;
  }

  .z-final-cta {
    border-radius: 24px;
    margin-bottom: 3rem;
  }

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

  .z-footer div {
    justify-content: flex-start;
  }

  .zp-tab,
  .zp-perturbations button,
  .zp-demo-replay,
  .zp-lensbar button,
  button.zp-chip {
    min-height: 2.75rem;
  }

  .zp-tabs,
  .zp-lensbar {
    overflow-x: auto;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .zp-tabs::-webkit-scrollbar,
  .zp-lensbar::-webkit-scrollbar {
    display: none;
  }

  .zp-tab,
  .zp-lensbar button {
    flex: 0 0 auto;
  }

  .zp-head {
    flex-wrap: wrap;
  }

  .zp-live-readout {
    margin-left: 0;
  }
}

@media (max-width: 460px) {
  .z-hero h1 {
    font-size: 2.95rem;
  }

  .z-heading-wide h2,
  .z-section-heading h2,
  .z-api-copy h2,
  .z-final-cta h2 {
    font-size: 2.45rem;
  }

  .z-button {
    width: 100%;
  }

  .z-hero-actions {
    width: 100%;
  }

  .z-product-shot figcaption {
    font-size: 0.78rem;
  }

  .z-studio-tabs span {
    max-width: 9rem;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .z-code-pane code,
  .z-verdict-pane code,
  .z-code-card code {
    font-size: 0.68rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .zigttp-home *,
  .zigttp-home *::before,
  .zigttp-home *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

/* ---------------------------------------------------------------------------
   Live proof playground (#playground). The editor and proof card mirror the
   `zigttp dev` terminal HUD; the real zigts analyzer runs in WebAssembly.
   --------------------------------------------------------------------------- */

.z-playground .zp-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 430px);
  gap: 1.5rem;
  align-items: stretch;
}

.zp-editor-col {
  display: flex;
  flex-direction: column;
  border: 1px solid rgb(42 103 150 / 0.28);
  border-radius: var(--z-radius-lg);
  overflow: hidden;
  background: var(--z-terminal);
  box-shadow: var(--z-shadow);
}

.zp-tabs {
  display: flex;
  gap: 0.4rem;
  padding: 0.7rem 1rem 0;
  background: var(--z-terminal);
}

.zp-tab {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.4rem 0.85rem;
  border: 1px solid rgb(255 255 255 / 0.14);
  border-radius: 999px;
  background: rgb(255 255 255 / 0.04);
  color: #9da7b3;
  font-family: var(--z-mono);
  font-size: 0.74rem;
  cursor: pointer;
  transition:
    background-color 0.15s ease,
    border-color 0.15s ease,
    color 0.15s ease;
}

.zp-tab code {
  color: inherit;
  font-size: 0.95em;
}

.zp-tab:hover {
  background: rgb(255 255 255 / 0.1);
  color: #fff;
}

.zp-tab.active {
  background: var(--z-accent-soft);
  border-color: var(--z-accent);
  color: var(--z-terminal);
}

.zp-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  background: var(--z-terminal-2);
  border-bottom: 1px solid rgb(255 255 255 / 0.06);
}

.zp-demo-controls {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
}

.zp-file {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: #cbd7e3;
  font-family: var(--z-mono);
  font-size: 0.82rem;
}

.zp-perturbations {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.zp-perturbations button {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0.34rem 0.8rem;
  border: 1px solid rgb(255 255 255 / 0.14);
  border-radius: 999px;
  background: rgb(255 255 255 / 0.04);
  color: #cbd7e3;
  font-family: var(--z-mono);
  font-size: 0.72rem;
  cursor: pointer;
  transition:
    background-color 0.15s ease,
    border-color 0.15s ease,
    color 0.15s ease;
}

.zp-demo-replay {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0.34rem 0.8rem;
  border: 1px solid rgb(255 255 255 / 0.14);
  border-radius: 999px;
  background: rgb(110 173 219 / 0.1);
  color: #cbd7e3;
  font-family: var(--z-mono);
  font-size: 0.72rem;
  cursor: pointer;
}

.zp-demo-state {
  color: #8e99a6;
  font-family: var(--z-mono);
  font-size: 0.7rem;
  font-weight: 700;
}

.zp-perturbations button:hover {
  background: rgb(255 255 255 / 0.1);
  color: #fff;
}

.zp-demo-replay:hover {
  background: rgb(110 173 219 / 0.18);
  color: #fff;
}

.zp-perturbations button.active {
  background: var(--z-red);
  border-color: var(--z-red);
  color: #fff;
}

.zp-editor {
  position: relative;
  flex: 1;
  min-height: 318px;
}

.zp-highlight,
.zp-src {
  position: absolute;
  inset: 0;
  margin: 0;
  padding: 1rem 1.15rem;
  border: 0;
  box-sizing: border-box;
  font-family: var(--z-mono);
  font-size: 13px;
  line-height: 1.62;
  white-space: pre;
  overflow: auto;
  tab-size: 2;
}

.zp-src {
  z-index: 1;
  resize: none;
  color: #e8edf1;
  background: transparent;
  caret-color: #8ab4ff;
  outline: none;
}

.zp-highlight {
  z-index: 0;
  display: none;
  color: #e8edf1;
  pointer-events: none;
}

.zp-highlight code {
  font: inherit;
  color: inherit;
}

.zp-js .zp-highlight {
  display: block;
}

.zp-js .zp-src {
  color: transparent;
}

.zp-com {
  color: #6f7d8c;
  font-style: italic;
}

/* --- proof card --- */
.zp-card {
  display: flex;
  flex-direction: column;
  margin: 0;
  border: 1px solid rgb(42 103 150 / 0.28);
  border-radius: var(--z-radius-lg);
  overflow: hidden;
  background: var(--z-terminal);
  box-shadow: var(--z-shadow);
  color: #e8edf1;
  font-family: var(--z-mono);
}

.zp-head {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  padding: 0.95rem 1.15rem;
  border-bottom: 1px solid rgb(255 255 255 / 0.06);
  transition: background-color 0.25s ease;
}

.zp-head.zp-ok {
  background: linear-gradient(90deg, rgb(47 138 79 / 0.28), transparent);
}

.zp-head.zp-blocked {
  background: linear-gradient(90deg, rgb(196 63 95 / 0.3), transparent);
}

.zp-verdict {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.zp-ok .zp-verdict {
  color: #7fd59b;
}

.zp-blocked .zp-verdict {
  color: #ff8497;
}

.zp-count {
  color: #cbd7e3;
  font-size: 0.78rem;
  font-weight: 500;
}

.zp-live-readout {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

/* Geometry and color come from the shared `.z-status-dot z-dot-safe` it is
   applied alongside; this only keeps it from shrinking and adds the live
   animation once the real analyzer is loaded. */
.zp-live-dot {
  flex-shrink: 0;
}

.zp-card.zp-live .zp-live-dot {
  animation: zp-breathe 2.4s ease-in-out infinite;
}

/* Opacity-only: compositor-friendly, no per-frame box-shadow repaint. */
@keyframes zp-breathe {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.45;
  }
}

.zp-status {
  color: #8e99a6;
  font-size: 0.72rem;
}

.zp-status-warn {
  color: #e8c06b;
}

/* Pulsing outline drawn on a perturbation button during the attract demo. */
.zp-perturbations button.zp-hint {
  border-color: var(--z-red);
  animation: zp-hint-pulse 1.1s ease-in-out infinite;
}

@keyframes zp-hint-pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgb(255 132 151 / 0);
  }
  50% {
    box-shadow: 0 0 0 5px rgb(255 132 151 / 0.24);
  }
}

.z-playground .z-section-kicker .z-status-dot {
  animation: zp-breathe 2.4s ease-in-out infinite;
}

.zp-lensbar {
  display: flex;
  gap: 0.2rem;
  padding: 0.5rem 0.6rem 0;
  border-bottom: 1px solid rgb(255 255 255 / 0.06);
}

.zp-lensbar button {
  padding: 0.45rem 0.7rem;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: #8e99a6;
  font-family: var(--z-mono);
  font-size: 0.74rem;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.zp-lensbar button:hover {
  color: #cbd7e3;
}

.zp-lensbar button.active {
  color: #fff;
  border-bottom-color: #7fd59b;
}

.zp-lens {
  padding: 1rem 1.15rem;
}

/* --- properties lens --- */
.zp-chips {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.zp-chip {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.55rem;
  border-radius: 8px;
  font-size: 0.76rem;
  transition: background-color 0.25s ease, color 0.25s ease;
}

.zp-chip.on {
  background: rgb(47 138 79 / 0.16);
  color: #aee6bd;
}

.zp-chip.off {
  background: rgb(196 63 95 / 0.16);
  color: #ffb3bf;
}

.zp-glyph {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.05rem;
  height: 1.05rem;
  border-radius: 4px;
  font-weight: 700;
  flex-shrink: 0;
}

.zp-chip.on .zp-glyph {
  background: rgb(127 213 155 / 0.22);
  color: #7fd59b;
}

.zp-chip.off .zp-glyph {
  background: rgb(255 132 151 / 0.22);
  color: #ff8497;
}

@keyframes zp-pulse {
  0% {
    transform: scale(1);
  }
  35% {
    transform: scale(1.07);
  }
  100% {
    transform: scale(1);
  }
}

.zp-chip.zp-flip {
  animation: zp-pulse 0.42s ease;
}

/* --- proof trace (expandable chip) --- */
.zp-chip-cell {
  list-style: none;
  align-self: start;
}

button.zp-chip {
  width: 100%;
  margin: 0;
  border: 0;
  font: inherit;
  text-align: left;
  cursor: pointer;
  appearance: none;
}

.zp-chevron {
  margin-left: auto;
  width: 0.42rem;
  height: 0.42rem;
  flex-shrink: 0;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(-45deg);
  opacity: 0.5;
  transition: transform 0.2s ease;
}

.zp-chip-cell.zp-open .zp-chevron {
  transform: rotate(45deg);
}

.zp-trace {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.22s ease;
}

.zp-chip-cell.zp-open .zp-trace {
  grid-template-rows: 1fr;
}

.zp-trace-inner {
  overflow: hidden;
}

.zp-trace-body {
  margin-top: 0.4rem;
  padding: 0.6rem 0.7rem;
  border-radius: 8px;
  font-size: 0.72rem;
  line-height: 1.5;
  border: 1px solid transparent;
}

.zp-trace-body.ok {
  background: rgb(47 138 79 / 0.1);
  border-color: rgb(47 138 79 / 0.3);
}

.zp-trace-body.bad {
  background: rgb(196 63 95 / 0.1);
  border-color: rgb(196 63 95 / 0.35);
}

.zp-trace-body p {
  margin: 0 0 0.35rem;
}

.zp-trace-body p:last-child {
  margin-bottom: 0;
}

.zp-trace-head {
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: #8e99a6;
}

.zp-trace-summary {
  color: #d6dee6;
}

.zp-trace-fact,
.zp-trace-flow,
.zp-trace-req,
.zp-trace-code {
  font-family: var(--z-mono);
  font-size: 0.68rem;
}

.zp-trace-fact,
.zp-trace-req {
  color: #9aa6b2;
}

.zp-trace-arrow {
  color: #6b7682;
}

.zp-trace-step {
  color: #ffd0d0;
}

.zp-trace-loc {
  color: #6b7682;
  margin-right: 0.5rem;
}

.zp-trace-snip {
  color: #ffd0d0;
  background: rgb(196 63 95 / 0.16);
  padding: 0.05rem 0.3rem;
  border-radius: 4px;
}

.zp-trace-fix {
  display: flex;
  gap: 0.4rem;
  color: #d6dee6;
}

.zp-trace-fix-tag {
  flex-shrink: 0;
  color: #7fd59b;
  text-transform: uppercase;
  font-size: 0.6rem;
  letter-spacing: 0.06em;
  padding-top: 0.1rem;
}

@media (prefers-reduced-motion: reduce) {
  .zp-trace {
    transition: none;
  }

  .zp-chevron {
    transition: none;
  }
}

.zp-specs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.85rem;
  padding-top: 0.85rem;
  border-top: 1px solid rgb(255 255 255 / 0.06);
}

.zp-specs-label {
  color: #8e99a6;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.zp-spec {
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  font-size: 0.72rem;
}

.zp-spec.on {
  background: rgb(47 138 79 / 0.2);
  color: #aee6bd;
}

.zp-spec.off {
  background: rgb(196 63 95 / 0.2);
  color: #ffb3bf;
}

/* --- trade lens --- */
.zp-trade {
  margin: 0;
  padding: 0;
  list-style: none;
}

.zp-trade-row {
  padding: 0.6rem 0;
  border-bottom: 1px solid rgb(255 255 255 / 0.06);
}

.zp-trade-row:last-child {
  border-bottom: 0;
}

.zp-trade-row.off {
  opacity: 0.5;
}

.zp-trade-head {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.35rem;
  font-size: 0.78rem;
}

.zp-trade-row.on .zp-glyph {
  background: rgb(127 213 155 / 0.22);
  color: #7fd59b;
}

.zp-trade-row.off .zp-glyph {
  background: rgb(255 132 151 / 0.18);
  color: #ff8497;
}

.zp-trade-line {
  display: flex;
  gap: 0.5rem;
  font-size: 0.72rem;
  color: #cbd7e3;
  margin-left: 1.45rem;
}

.zp-trade-tag {
  flex-shrink: 0;
  width: 4.4rem;
  color: #8e99a6;
}

/* --- handover + caller lenses --- */
.zp-cert,
.zp-caller-block {
  margin: 0;
  padding: 0.85rem 0.95rem;
  border-radius: 10px;
  background: rgb(0 0 0 / 0.28);
  color: #cbd7e3;
  font-size: 0.74rem;
  line-height: 1.6;
  white-space: pre-wrap;
  overflow-x: auto;
}

.zp-copy {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  margin-top: 0.7rem;
  padding: 0.4rem 0.9rem;
  border: 1px solid rgb(255 255 255 / 0.14);
  border-radius: 8px;
  background: rgb(255 255 255 / 0.04);
  color: #cbd7e3;
  font-family: var(--z-mono);
  font-size: 0.72rem;
  cursor: pointer;
}

.zp-copy:hover {
  background: rgb(255 255 255 / 0.1);
  color: #fff;
}

.zp-caller-note,
.zp-caller-foot {
  margin: 0 0 0.6rem;
  color: #8e99a6;
  font-size: 0.74rem;
}

.zp-caller-foot {
  margin: 0.6rem 0 0;
}

.zp-caller-block + .zp-caller-block {
  margin-top: 0.6rem;
}

/* --- why row --- */
.zp-why {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin: 0;
  padding: 0.85rem 1.15rem;
  border-top: 1px solid rgb(255 255 255 / 0.06);
  background: rgb(196 63 95 / 0.1);
  font-size: 0.73rem;
}

.zp-why-code {
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  background: rgb(255 132 151 / 0.2);
  color: #ff8497;
  font-weight: 600;
}

.zp-why-msg {
  color: #e8edf1;
}

.zp-why-loc {
  color: #8ab4ff;
}

.zp-why-fix {
  flex-basis: 100%;
  color: #8e99a6;
}

@media (max-width: 880px) {
  .z-playground .zp-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .zp-chips {
    grid-template-columns: 1fr;
  }
}