@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap");

:root {
  --background: 0 0% 100%;
  --foreground: 222 47% 11%;

  --card: 0 0% 100%;
  --card-foreground: 222 47% 11%;
  --popover: 0 0% 100%;
  --popover-foreground: 222 47% 11%;

  --primary: 174 72% 38%;
  --primary-foreground: 0 0% 100%;

  --secondary: 220 13% 96%;
  --secondary-foreground: 222 47% 11%;

  --muted: 220 13% 95%;
  --muted-foreground: 220 9% 46%;

  --accent: 174 72% 96%;
  --accent-foreground: 174 72% 40%;

  --destructive: 0 84% 60%;
  --destructive-foreground: 0 0% 98%;
  --success: 142 71% 45%;
  --success-foreground: 0 0% 100%;
  --warning: 38 92% 50%;
  --warning-foreground: 0 0% 13%;

  --border: 220 13% 91%;
  --input: 220 13% 91%;
  --ring: 174 72% 38%;

  --chart-1: 174 72% 38%;
  --chart-2: 173 58% 39%;
  --chart-3: 217 91% 60%;
  --chart-4: 142 71% 45%;
  --chart-5: 280 65% 60%;

  --radius: 12px; }

.dark {
  --background: 222 47% 7%;
  --foreground: 210 40% 98%;
  --card: 222 47% 10%;
  --card-foreground: 210 40% 98%;
  --popover: 222 47% 10%;
  --popover-foreground: 210 40% 98%;
  --primary: 174 72% 38%;
  --primary-foreground: 0 0% 100%;
  --secondary: 217 33% 17%;
  --secondary-foreground: 210 40% 98%;
  --muted: 217 33% 17%;
  --muted-foreground: 215 20% 65%;
  --accent: 174 72% 20%;
  --accent-foreground: 174 72% 80%;
  --destructive: 0 62% 50%;
  --destructive-foreground: 0 0% 98%;
  --success: 142 71% 45%;
  --success-foreground: 0 0% 100%;
  --warning: 38 92% 50%;
  --warning-foreground: 222 47% 11%;
  --border: 217 33% 20%;
  --input: 217 33% 20%;
  --ring: 174 72% 38%;
  --chart-1: 174 72% 38%;
  --chart-2: 173 58% 45%;
  --chart-3: 217 91% 60%;
  --chart-4: 142 71% 50%;
  --chart-5: 280 65% 60%;
}

* {
  box-sizing: border-box;
}
html,
body {
  overflow-x: hidden;
}
body {
  margin: 0;
  color: hsl(var(--foreground));
  background-color: hsl(var(--background));
  font-family:
    Geist,
    "Geist Fallback",
    system-ui,
    -apple-system,
    Segoe UI,
    Roboto,
    "Helvetica Neue",
    Arial,
    "Noto Sans",
    "Apple Color Emoji",
    "Segoe UI Emoji",
    "Segoe UI Symbol";
  font-feature-settings:
    "rlig" 1,
    "calt" 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html {
  scroll-behavior: smooth;
}

h1,
h2,
h3 {
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0;
}
p,
li {
  color: hsl(var(--muted-foreground));
  line-height: 1.7;
  font-size: 1rem;
}
a {
  color: inherit;
  text-decoration: none;
}

.back-to-top {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 30;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, hsl(var(--primary)) 18%, hsl(var(--border)) 82%);
  background: color-mix(in srgb, hsl(var(--card)) 88%, hsl(var(--background)) 12%);
  color: hsl(var(--foreground));
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  transition:
    transform 120ms ease,
    background-color 150ms ease,
    border-color 150ms ease,
    color 150ms ease;
}

.back-to-top:hover {
  transform: translateY(-2px);
  background: color-mix(in srgb, hsl(var(--primary)) 14%, hsl(var(--card)) 86%);
  color: hsl(var(--primary-foreground));
  border-color: color-mix(in srgb, hsl(var(--primary)) 28%, hsl(var(--border)) 72%);
}

.back-to-top:active {
  transform: translateY(0);
}

@media (max-width: 900px) {
  .back-to-top {
    right: 14px;
    bottom: 14px;
    width: 40px;
    height: 40px;
  }
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
}

figure {
  margin: 0;
}
figcaption {
  margin-top: 8px;
  color: hsl(var(--muted-foreground));
  font-size: 0.95rem;
  line-height: 1.6;
}

p a,
li a {
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1.5px;
}
p a:hover,
li a:hover {
  color: hsl(var(--primary));
  text-decoration-thickness: 2px;
}

.hero-link,
.card-link,
.inline-cta {
  text-decoration: none;
}

.focus-ring {
  outline: none;
}
.focus-ring:focus-visible {
  --tw-ring-color: hsl(var(--ring));
  box-shadow:
    0 0 0 2px var(--tw-ring-color),
    0 0 0 4px hsl(var(--background));
}

.container {
  width: min(calc(100% - 24px), 1240px);
  margin-left: auto;
  margin-right: auto;
}
.flex {
  display: flex;
}
.items-center {
  align-items: center;
}
.justify-between {
  justify-content: space-between;
}
.gap-2 {
  gap: 8px;
}
.gap-3 {
  gap: 12px;
}
.gap-4 {
  gap: 16px;
}
.p-2 {
  padding: 8px;
}
.p-3 {
  padding: 12px;
}
.p-4 {
  padding: 16px;
}
.px-3 {
  padding-left: 12px;
  padding-right: 12px;
}
.px-4 {
  padding-left: 16px;
  padding-right: 16px;
}
.py-2 {
  padding-top: 8px;
  padding-bottom: 8px;
}
.rounded {
  border-radius: var(--radius);
}
.rounded-full {
  border-radius: 999px;
}
.border {
  border: 1px solid hsl(var(--border));
}
.bg-card {
  background-color: hsl(var(--card));
}
.text-muted {
  color: hsl(var(--muted-foreground));
}
.text-foreground {
  color: hsl(var(--foreground));
}
.text-primary {
  color: hsl(var(--primary));
}
.text-sm {
  font-size: 0.875rem;
}
.text-base {
  font-size: 1rem;
}
.text-lg {
  font-size: 1.125rem;
}
.font-medium {
  font-weight: 500;
}
.font-semibold {
  font-weight: 600;
}
.shadow-card {
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.16);
}

.nav {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid hsl(var(--border));
  color: hsl(var(--muted-foreground));
}
.nav a {
  text-decoration: none;
  transition: color 150ms ease;
}
.nav a:hover {
  color: hsl(var(--primary));
}

.header {
  padding-top: 12px;
  padding-bottom: 6px;
}

.section-title {
  margin-top: 32px;
  margin-bottom: 28px;
  font-size: clamp(1.9rem, 3vw, 2.2rem);
  letter-spacing: -0.015em;
  color: hsl(var(--foreground));
}

.section-title + .grid-2,
.section-title + .grid-3,
.section-title + .shot-grid,
.section-title + section,
.section-title + .card {
  margin-top: 0;
}

.kicker {
  display: inline-block;
  margin-bottom: 10px;
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: hsl(var(--primary));
}

.page {
  width: min(calc(100% - 24px), 1240px);
  margin: 0 auto;
  padding: 24px 0 64px;
}
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 18px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.92rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: hsl(var(--muted-foreground));
}
.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: var(--radius);
  display: grid;
  place-items: center;
  font-weight: 700;
  color: white;
  background: linear-gradient(135deg, hsl(var(--primary)), #79b5a8);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
}

.hero {
  padding: 34px;
  border-radius: var(--radius);
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  box-shadow: 0 6px 30px rgba(0, 0, 0, 0.12);
}
.eyebrow {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  background: hsl(var(--accent));
  color: hsl(var(--accent-foreground));
  font-size: 0.84rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.hero h1 {
  margin-top: 16px;
  font-size: clamp(2.6rem, 6vw, 4.8rem);
  max-width: 10ch;
  color: hsl(var(--foreground));
}
.hero p {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 1.08rem;
}

.expect {
  margin-top: 24px;
  max-width: 62ch;
  padding-top: 18px;
  border-top: 1px solid hsl(var(--border));
}

.expect strong {
  display: block;
  margin-bottom: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: hsl(var(--foreground));
}

.expect p {
  margin: 0;
  font-size: 1rem;
  line-height: 1.75;
}
.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.btn,
.hero-link,
.inline-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 26px;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.1;
  text-decoration: none;
  border: 1.5px solid transparent;
  transition:
    transform 80ms ease,
    background-color 150ms ease,
    color 150ms ease,
    border-color 150ms ease;
}

.btn-primary,
.hero-link:not(.btn-outline),
.inline-cta:not(.btn-outline) {
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
}

.btn-primary:hover,
.hero-link:not(.btn-outline):hover,
.inline-cta:not(.btn-outline):hover {
  background: color-mix(in srgb, hsl(var(--primary)) 88%, white 12%);
  transform: translateY(-0.5px);
}

.btn-primary:active,
.hero-link:not(.btn-outline):active,
.inline-cta:not(.btn-outline):active {
  transform: translateY(0);
}

.btn-outline,
.hero-link.btn-outline,
.inline-cta.btn-outline {
  background: transparent;
  color: hsl(var(--primary-foreground));
  border-width: 1px;
  border-color: color-mix(
    in srgb,
    hsl(var(--primary)) 15%,
    hsl(var(--border)) 85%
  );
}

.btn-outline:hover,
.hero-link.btn-outline:hover,
.inline-cta.btn-outline:hover {
  background: color-mix(in srgb, hsl(var(--primary)) 12%, transparent);
  color: hsl(var(--primary-foreground));
  transform: translateY(-0.5px);
}

.btn-outline:active,
.hero-link.btn-outline:active,
.inline-cta.btn-outline:active {
  transform: translateY(0);
}

section {
  margin-top: 24px;
}
.section-intro {
  margin-bottom: 14px;
}
.section-intro p {
  margin: 10px 0 0;
  max-width: 62ch;
}

.grid-3,
.grid-2 {
  display: grid;
  gap: 16px;
}
.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  padding: 22px;
  border-radius: var(--radius);
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.16);
}
.card > h1 {
  margin-bottom: 14px;
  font-size: clamp(2rem, 4vw, 2.6rem);
  color: hsl(var(--foreground));
}
.card > h1 + p {
  margin-top: 0;
}
.card > h2 {
  margin-top: 36px;
  margin-bottom: 14px;
  font-size: clamp(1.45rem, 2vw, 1.75rem);
  color: hsl(var(--foreground));
}
.card > h2 + p,
.card > h2 + ol,
.card > h2 + ul {
  margin-top: 0;
}
.card > p + h2,
.card > ol + h2,
.card > ul + h2 {
  margin-top: 40px;
}
.card h3 {
  margin-bottom: 10px;
  font-size: 1.35rem;
  color: hsl(var(--foreground));
}
.card ul {
  margin: 14px 0 0;
  padding-left: 20px;
}
.card li + li {
  margin-top: 4px;
}
.card-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}
.card-link {
  color: hsl(var(--primary));
  font-weight: 600;
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 3px;
  transition: color 150ms ease;
}
.card-link:hover {
  color: color-mix(in srgb, hsl(var(--primary)) 85%, white 15%);
}

.next-link {
  color: hsl(var(--primary));
  font-weight: 600;
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 3px;
  transition: color 150ms ease;
}
.next-link:hover {
  color: color-mix(in srgb, hsl(var(--primary)) 85%, white 15%);
}

.step > .next-link,
.card > .next-link {
  display: inline-block;
  align-self: flex-start;
  margin-top: auto;
  padding-top: 18px;
}

.inline-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 999px;
  background: hsl(var(--primary));
  border: none;
  color: hsl(var(--primary-foreground));
  font-weight: 500;
  text-decoration: none;
  transition:
    background-color 150ms ease,
    box-shadow 150ms ease,
    transform 80ms ease;
}
.inline-cta:hover {
  filter: brightness(1.06);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}
.inline-cta:active {
  transform: translateY(1px);
}

.step,
.hero-panel,
.list-card,
.mini-card {
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  padding: 22px;
}

.step {
  display: flex;
  flex-direction: column;
}

.step > strong {
  display: block;
  margin-bottom: 10px;
}

.step > h3 {
  margin-top: 0;
}

.step-followup {
  margin-top: auto;
  padding-top: 18px;
}

.step-followup strong {
  color: hsl(var(--foreground));
}

.quick-card {
  background: hsl(var(--card));
}
.quick-start-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.quick-card {
  position: relative;
  overflow: hidden;
}

.quick-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    color-mix(in srgb, hsl(var(--primary)) 65%, transparent),
    transparent 70%
  );
}

.quick-card-featured {
  grid-column: 1 / span 1;
  grid-row: 1 / span 2;
  padding: 28px;
  background:
    radial-gradient(circle at top right, color-mix(in srgb, hsl(var(--accent)) 28%, transparent), transparent 34%),
    hsl(var(--card));
}

.quick-card-secondary {
  min-height: 210px;
  display: flex;
  flex-direction: column;
}

.quick-step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  padding: 7px 12px;
  border-radius: 999px;
  background: color-mix(in srgb, hsl(var(--accent)) 72%, transparent);
  color: hsl(var(--accent-foreground));
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.quick-card h3 {
  margin-bottom: 12px;
  font-size: clamp(1.35rem, 2vw, 1.85rem);
}

.quick-card-secondary h3 {
  font-size: 1.35rem;
}

.quick-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.quick-highlights span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: color-mix(in srgb, hsl(var(--secondary)) 82%, transparent);
  color: hsl(var(--foreground));
  font-size: 0.9rem;
  line-height: 1.3;
}

.quick-highlights span::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: hsl(var(--primary));
  box-shadow: 0 0 0 4px color-mix(in srgb, hsl(var(--primary)) 18%, transparent);
}

.quick-card .card-links {
  margin-top: auto;
  padding-top: 18px;
}
.guide-card {
  background: hsl(var(--card));
}
.help-card {
  background: hsl(var(--card));
}

.shot-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.shot {
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  padding: 12px;
}
.shot-grid-compact {
  gap: 18px;
}
.shot-grid-compact .shot {
  padding: 14px;
}
.shot-grid-compact img {
  width: 100%;
  max-width: 440px;
  margin: 0 auto;
}
.shot-phone-narrow img {
  max-width: 260px;
}

@media (max-width: 900px) {
  .shot-grid {
    grid-template-columns: 1fr;
  }
}

.next-card,
.route {
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  padding: 20px;
}

.route-badge {
  display: block;
  margin-bottom: 10px;
  color: hsl(var(--foreground));
}

.route > h3 {
  margin-top: 0;
}

.next-card {
  display: flex;
  flex-direction: column;
}

.next-card .next-link {
  margin-top: auto;
  padding-top: 14px;
}

.next-icon {
  width: 36px;
  height: 36px;
  display: inline-grid;
  place-items: center;
  margin-bottom: 12px;
  border-radius: calc(var(--radius) - 4px);
  background: hsl(var(--accent));
  color: hsl(var(--accent-foreground));
  font-weight: 600;
}

.note {
  margin-top: 18px;
  padding: 16px 18px;
  border-radius: var(--radius);
  background: rgba(185, 107, 54, 0.12);
  border: 1px solid rgba(185, 107, 54, 0.14);
  color: hsl(var(--foreground));
}

.info-bridge {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 20px 22px;
  background: color-mix(in srgb, hsl(var(--accent)) 12%, hsl(var(--card)));
  border-color: color-mix(in srgb, hsl(var(--accent)) 24%, hsl(var(--border)));
}

.info-bridge-badge {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 999px;
  background: color-mix(in srgb, hsl(var(--accent)) 78%, transparent);
  color: hsl(var(--accent-foreground));
  font-size: 1rem;
  font-weight: 700;
  box-shadow: inset 0 0 0 1px color-mix(in srgb, hsl(var(--accent)) 24%, transparent);
}

.info-bridge-copy > h2 {
  margin-top: 0;
  margin-bottom: 10px;
  font-size: clamp(1.2rem, 1.5vw, 1.55rem);
}

.info-bridge-label {
  margin: 0 0 10px;
  color: color-mix(in srgb, hsl(var(--accent)) 78%, white 12%);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.info-bridge .card-links {
  margin-top: 14px;
  padding-top: 0;
}

@media (max-width: 900px) {
  .quick-start-grid {
    grid-template-columns: 1fr;
  }

  .quick-card-featured {
    grid-column: auto;
    grid-row: auto;
  }

  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .info-bridge {
    grid-template-columns: 1fr;
  }
}

.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;
}

.kb-home {
  min-height: 100vh;
  background:
    linear-gradient(
      180deg,
      color-mix(in srgb, hsl(var(--accent)) 42%, hsl(var(--background)) 58%),
      hsl(var(--background)) 360px
    );
}

.dark .kb-home {
  background:
    radial-gradient(circle at top left, rgba(20, 184, 166, 0.16), transparent 360px),
    linear-gradient(180deg, hsl(222 47% 8%), hsl(var(--background)) 420px);
}

.kb-shell-header {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid color-mix(in srgb, hsl(var(--border)) 82%, transparent);
  background: color-mix(in srgb, hsl(var(--background)) 86%, transparent);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.kb-header-inner {
  width: min(calc(100% - 24px), 1240px);
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.kb-brand {
  display: inline-flex;
  align-items: center;
  min-width: 0;
  gap: 12px;
  color: hsl(var(--foreground));
  text-decoration: none;
}

.kb-brand > span:last-child {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.kb-brand strong {
  font-size: 1rem;
  letter-spacing: -0.01em;
}

.kb-brand span span {
  color: hsl(var(--muted-foreground));
  font-size: 0.86rem;
  font-weight: 500;
}

.kb-brand-mark {
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border-radius: 12px;
  color: hsl(var(--primary-foreground));
  background: linear-gradient(135deg, hsl(var(--primary)), #2f8fdd);
  box-shadow: 0 14px 34px color-mix(in srgb, hsl(var(--primary)) 28%, transparent);
  font-weight: 800;
}

.kb-header-actions {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.kb-header-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid hsl(var(--border));
  border-radius: 999px;
  background: color-mix(in srgb, hsl(var(--card)) 80%, transparent);
  color: hsl(var(--foreground));
  font-size: 0.9rem;
  font-weight: 650;
  text-decoration: none;
  transition:
    border-color 150ms ease,
    background-color 150ms ease,
    transform 120ms ease;
}

.kb-header-link:hover {
  border-color: color-mix(in srgb, hsl(var(--primary)) 48%, hsl(var(--border)));
  background: color-mix(in srgb, hsl(var(--primary)) 8%, hsl(var(--card)) 92%);
  transform: translateY(-1px);
}

.kb-theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 4px;
  border: 1px solid hsl(var(--border));
  border-radius: 999px;
  background: color-mix(in srgb, hsl(var(--secondary)) 72%, hsl(var(--card)) 28%);
}

.kb-theme-toggle button {
  width: 32px;
  height: 32px;
  display: inline-grid;
  place-items: center;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: hsl(var(--muted-foreground));
  font: inherit;
  cursor: pointer;
  transition:
    background-color 150ms ease,
    color 150ms ease,
    box-shadow 150ms ease,
    transform 120ms ease;
}

.kb-theme-toggle button:hover {
  color: hsl(var(--foreground));
}

.kb-theme-toggle button.is-active {
  background: hsl(var(--card));
  color: hsl(var(--foreground));
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.1);
}

.kb-theme-toggle svg,
.kb-help-site-link svg,
.kb-help-search-icon svg,
.kb-help-topic-icon svg {
  display: block;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.kb-theme-toggle svg {
  width: 15px;
  height: 15px;
}

.kb-home-shell {
  width: min(calc(100% - 24px), 1240px);
  margin: 0 auto;
  padding: 42px 0 72px;
}

.kb-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(340px, 0.8fr);
  gap: 28px;
  align-items: stretch;
}

.kb-hero-copy,
.kb-start-panel,
.kb-path-card,
.kb-topic-card,
.kb-empty-state {
  border: 1px solid hsl(var(--border));
  background: color-mix(in srgb, hsl(var(--card)) 88%, hsl(var(--background)) 12%);
  box-shadow: 0 18px 50px rgba(15, 23, 42, 0.08);
}

.dark .kb-hero-copy,
.dark .kb-start-panel,
.dark .kb-path-card,
.dark .kb-topic-card,
.dark .kb-empty-state {
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.28);
}

.kb-hero-copy {
  min-height: 420px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(28px, 5vw, 58px);
  border-radius: 28px;
  overflow: hidden;
  position: relative;
}

.kb-hero-copy::after {
  content: "";
  position: absolute;
  inset: auto -20% -45% 32%;
  height: 280px;
  background: radial-gradient(circle, color-mix(in srgb, hsl(var(--primary)) 18%, transparent), transparent 68%);
  pointer-events: none;
}

.kb-eyebrow,
.kb-card-label,
.kb-panel-kicker {
  color: hsl(var(--primary));
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.kb-hero h1 {
  max-width: 11ch;
  margin-top: 14px;
  color: hsl(var(--foreground));
  font-size: clamp(2.65rem, 7vw, 5.4rem);
  letter-spacing: -0.035em;
  line-height: 0.96;
}

.kb-hero p {
  max-width: 66ch;
  margin: 22px 0 0;
  color: hsl(var(--muted-foreground));
  font-size: clamp(1.02rem, 1.6vw, 1.18rem);
}

.kb-search {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 660px;
  margin-top: 30px;
  padding: 14px 16px;
  border: 1px solid hsl(var(--border));
  border-radius: 16px;
  background: hsl(var(--background));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  transition:
    border-color 150ms ease,
    box-shadow 150ms ease,
    background-color 150ms ease;
}

.kb-search:focus-within {
  border-color: color-mix(in srgb, hsl(var(--primary)) 56%, hsl(var(--border)));
  box-shadow: 0 0 0 4px color-mix(in srgb, hsl(var(--primary)) 16%, transparent);
}

.kb-search span {
  color: hsl(var(--primary));
  font-size: 1.3rem;
  font-weight: 800;
}

.kb-search input {
  width: 100%;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: hsl(var(--foreground));
  font: inherit;
  font-size: 1rem;
}

.kb-search input::placeholder {
  color: hsl(var(--muted-foreground));
}

.kb-quick-nav {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.kb-quick-nav a,
.kb-card-actions a,
.kb-card-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 8px 12px;
  border-radius: 999px;
  background: color-mix(in srgb, hsl(var(--primary)) 10%, hsl(var(--card)) 90%);
  color: hsl(var(--foreground));
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  transition:
    background-color 150ms ease,
    color 150ms ease,
    transform 120ms ease;
}

.kb-quick-nav a:hover,
.kb-card-actions a:hover,
.kb-card-link:hover {
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  transform: translateY(-1px);
}

.kb-start-panel {
  position: relative;
  padding: 28px;
  border-radius: 28px;
  overflow: hidden;
}

.kb-start-panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 4px;
  background: linear-gradient(90deg, hsl(var(--primary)), hsl(var(--chart-3)), hsl(var(--success)));
}

.kb-panel-heading {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.kb-panel-icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  font-weight: 900;
}

.kb-start-panel h2 {
  margin-top: 4px;
  color: hsl(var(--foreground));
  font-size: clamp(1.35rem, 2.4vw, 2rem);
}

.kb-start-list {
  display: grid;
  gap: 12px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.kb-start-list a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 5px 12px;
  padding: 14px;
  border: 1px solid color-mix(in srgb, hsl(var(--border)) 84%, transparent);
  border-radius: 16px;
  background: color-mix(in srgb, hsl(var(--secondary)) 52%, transparent);
  text-decoration: none;
  transition:
    border-color 150ms ease,
    background-color 150ms ease,
    transform 120ms ease;
}

.kb-start-list a:hover {
  border-color: color-mix(in srgb, hsl(var(--primary)) 42%, hsl(var(--border)));
  background: color-mix(in srgb, hsl(var(--primary)) 8%, hsl(var(--card)) 92%);
  transform: translateY(-1px);
}

.kb-start-list span {
  grid-row: span 2;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: hsl(var(--background));
  color: hsl(var(--primary));
  font-size: 0.82rem;
  font-weight: 900;
}

.kb-start-list strong {
  color: hsl(var(--foreground));
  font-size: 0.98rem;
}

.kb-start-list small {
  color: hsl(var(--muted-foreground));
  font-size: 0.88rem;
  line-height: 1.45;
}

.kb-section {
  margin-top: 42px;
  scroll-margin-top: 92px;
}

.kb-section-heading {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  margin-bottom: 18px;
}

.kb-section-heading > span {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: color-mix(in srgb, hsl(var(--primary)) 12%, hsl(var(--card)) 88%);
  color: hsl(var(--primary));
  font-size: 0.8rem;
  font-weight: 900;
}

.kb-section-heading h2 {
  color: hsl(var(--foreground));
  font-size: clamp(1.7rem, 3vw, 2.35rem);
}

.kb-section-heading p {
  margin: 7px 0 0;
  max-width: 62ch;
}

.kb-path-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.28fr) repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.kb-path-card,
.kb-topic-card {
  border-radius: 20px;
  transition:
    border-color 150ms ease,
    transform 150ms ease,
    box-shadow 150ms ease,
    background-color 150ms ease;
}

.kb-path-card:hover,
.kb-topic-card:hover {
  border-color: color-mix(in srgb, hsl(var(--primary)) 36%, hsl(var(--border)));
  transform: translateY(-2px);
}

.kb-path-card {
  display: flex;
  flex-direction: column;
  min-height: 232px;
  padding: 22px;
}

.kb-path-featured {
  grid-row: span 2;
  min-height: 100%;
  padding: 28px;
  background:
    radial-gradient(circle at top right, color-mix(in srgb, hsl(var(--primary)) 18%, transparent), transparent 46%),
    color-mix(in srgb, hsl(var(--card)) 88%, hsl(var(--background)) 12%);
}

.kb-path-card h3,
.kb-topic-card h3 {
  margin: 10px 0 0;
  color: hsl(var(--foreground));
}

.kb-path-card h3 {
  font-size: clamp(1.25rem, 2vw, 1.72rem);
}

.kb-path-card p {
  margin: 12px 0 0;
  font-size: 0.96rem;
}

.kb-tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.kb-tag-row span {
  padding: 7px 10px;
  border-radius: 999px;
  background: color-mix(in srgb, hsl(var(--secondary)) 72%, transparent);
  color: hsl(var(--foreground));
  font-size: 0.86rem;
  font-weight: 650;
}

.kb-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: auto;
  padding-top: 18px;
}

.kb-card-link {
  align-self: flex-start;
  margin-top: auto;
}

.kb-topic-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.kb-topic-grid-compact {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.kb-topic-card {
  padding: 22px;
}

.kb-topic-icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: color-mix(in srgb, hsl(var(--primary)) 12%, hsl(var(--card)) 88%);
  color: hsl(var(--primary));
  font-size: 1.25rem;
  font-weight: 900;
}

.kb-topic-card-alert .kb-topic-icon {
  background: color-mix(in srgb, hsl(var(--warning)) 14%, hsl(var(--card)) 86%);
  color: color-mix(in srgb, hsl(var(--warning)) 82%, hsl(var(--foreground)) 18%);
}

.kb-topic-card ul {
  display: grid;
  gap: 9px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.kb-topic-card li {
  margin: 0;
  line-height: 1.45;
}

.kb-topic-card a {
  display: inline-flex;
  gap: 8px;
  align-items: baseline;
  color: hsl(var(--muted-foreground));
  font-size: 0.94rem;
  line-height: 1.45;
  text-decoration: none;
  transition:
    color 150ms ease,
    transform 150ms ease;
}

.kb-topic-card a::before {
  content: "›";
  color: hsl(var(--primary));
  font-weight: 900;
}

.kb-topic-card a:hover {
  color: hsl(var(--foreground));
  transform: translateX(2px);
}

.kb-empty-state {
  margin-top: 24px;
  padding: 18px 20px;
  border-radius: 18px;
  color: hsl(var(--foreground));
  font-weight: 650;
}

[data-search-text][hidden] {
  display: none;
}

@media (max-width: 1080px) {
  .kb-hero,
  .kb-path-grid,
  .kb-topic-grid,
  .kb-topic-grid-compact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .kb-hero-copy {
    min-height: auto;
  }

  .kb-path-featured {
    grid-column: 1 / -1;
    grid-row: auto;
  }
}

@media (max-width: 760px) {
  .kb-header-inner {
    min-height: 66px;
  }

  .kb-brand span span {
    display: none;
  }

  .kb-header-link {
    display: none;
  }

  .kb-home-shell {
    padding-top: 22px;
    padding-bottom: 54px;
  }

  .kb-hero,
  .kb-path-grid,
  .kb-topic-grid,
  .kb-topic-grid-compact {
    grid-template-columns: 1fr;
  }

  .kb-hero-copy,
  .kb-start-panel {
    border-radius: 22px;
  }

  .kb-hero-copy,
  .kb-start-panel,
  .kb-path-card,
  .kb-topic-card {
    padding: 20px;
  }

  .kb-hero h1 {
    max-width: 10ch;
  }

  .kb-search {
    padding: 12px 14px;
  }

  .kb-search input {
    font-size: 0.95rem;
  }

  .kb-section {
    margin-top: 34px;
  }

  .kb-section-heading {
    gap: 12px;
  }
}

.kb-workspace {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 292px minmax(0, 1fr);
  background: hsl(var(--background));
}

.kb-mobile-bar {
  display: none;
}

.kb-rail {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  border-right: 1px solid hsl(var(--border));
  background: color-mix(in srgb, hsl(var(--background)) 94%, hsl(var(--card)) 6%);
}

.kb-rail-head {
  padding: 22px 22px 18px;
  border-bottom: 1px solid hsl(var(--border));
}

.kb-workspace-brand {
  display: inline-flex;
  align-items: center;
  min-width: 0;
  gap: 12px;
  color: hsl(var(--foreground));
  text-decoration: none;
}

.kb-workspace-brand > span:last-child {
  display: grid;
  gap: 2px;
}

.kb-workspace-brand strong {
  font-size: 1rem;
}

.kb-workspace-brand small {
  color: hsl(var(--muted-foreground));
  font-size: 0.84rem;
  font-weight: 600;
}

.kb-workspace-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: linear-gradient(135deg, hsl(var(--primary)), hsl(var(--chart-3)));
  color: hsl(var(--primary-foreground));
  font-weight: 900;
  box-shadow: 0 14px 30px color-mix(in srgb, hsl(var(--primary)) 22%, transparent);
}

.kb-main-site-link {
  display: inline-flex;
  margin: 16px 0 0 50px;
  color: hsl(var(--muted-foreground));
  font-size: 0.86rem;
  font-weight: 700;
  text-decoration: none;
}

.kb-main-site-link:hover {
  color: hsl(var(--primary));
}

.kb-rail-nav {
  flex: 1;
  overflow: auto;
  padding: 22px 16px;
}

.kb-rail-nav p {
  margin: 0 8px 10px;
  color: hsl(var(--muted-foreground));
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.kb-rail-nav a {
  display: flex;
  align-items: center;
  min-height: 38px;
  margin: 2px 0;
  padding: 8px 10px;
  border-radius: 10px;
  color: hsl(var(--muted-foreground));
  font-size: 0.93rem;
  font-weight: 650;
  text-decoration: none;
  transition:
    background-color 150ms ease,
    color 150ms ease,
    transform 120ms ease;
}

.kb-rail-nav a:hover,
.kb-rail-nav a.is-active {
  background: color-mix(in srgb, hsl(var(--primary)) 10%, hsl(var(--card)) 90%);
  color: hsl(var(--foreground));
}

.kb-rail-nav a:hover {
  transform: translateX(2px);
}

.kb-rail-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px;
  border-top: 1px solid hsl(var(--border));
}

.kb-rail-foot > span {
  color: hsl(var(--muted-foreground));
  font-size: 0.82rem;
  font-weight: 800;
}

.kb-workspace-main {
  min-width: 0;
  width: min(100%, 1180px);
  margin: 0 auto;
  padding: clamp(34px, 5vw, 72px) clamp(18px, 5vw, 76px) 80px;
}

.kb-command {
  max-width: 900px;
  margin-bottom: 54px;
}

.kb-command-kicker {
  color: hsl(var(--primary));
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.kb-command h1 {
  margin-top: 18px;
  max-width: 13ch;
  color: hsl(var(--foreground));
  font-size: clamp(3rem, 8vw, 6.6rem);
  letter-spacing: -0.045em;
  line-height: 0.92;
}

.kb-command p {
  max-width: 68ch;
  margin-top: 22px;
  font-size: 1.12rem;
}

.kb-command-search {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  margin-top: 34px;
  padding-bottom: 14px;
  border-bottom: 2px solid hsl(var(--border));
  transition: border-color 150ms ease;
}

.kb-command-search:focus-within {
  border-color: hsl(var(--primary));
}

.kb-command-search > span {
  color: hsl(var(--primary));
  font-size: 1.8rem;
  font-weight: 900;
}

.kb-command-search input {
  width: 100%;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: hsl(var(--foreground));
  font: inherit;
  font-size: clamp(1.35rem, 3vw, 2.35rem);
  font-weight: 800;
}

.kb-command-search kbd {
  padding: 5px 8px;
  border: 1px solid hsl(var(--border));
  border-radius: 7px;
  background: hsl(var(--card));
  color: hsl(var(--muted-foreground));
  font-size: 0.75rem;
  font-weight: 800;
}

.kb-workspace-section {
  scroll-margin-top: 28px;
  margin-top: 48px;
}

.kb-workspace-heading {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  margin-bottom: 22px;
}

.kb-workspace-heading > span {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: color-mix(in srgb, hsl(var(--primary)) 12%, hsl(var(--card)) 88%);
  color: hsl(var(--primary));
  font-size: 0.8rem;
  font-weight: 900;
}

.kb-workspace-heading h2 {
  color: hsl(var(--foreground));
  font-size: clamp(1.7rem, 3vw, 2.45rem);
}

.kb-workspace-heading p {
  margin: 7px 0 0;
}

.kb-timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid hsl(var(--border));
  border-radius: 22px;
  overflow: hidden;
  background: color-mix(in srgb, hsl(var(--card)) 86%, hsl(var(--background)) 14%);
}

.kb-timeline li + li {
  border-left: 1px solid hsl(var(--border));
}

.kb-timeline a {
  min-height: 220px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px;
  color: hsl(var(--foreground));
  text-decoration: none;
  transition:
    background-color 150ms ease,
    transform 150ms ease;
}

.kb-timeline a:hover {
  background: color-mix(in srgb, hsl(var(--primary)) 9%, transparent);
}

.kb-timeline span {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: hsl(var(--background));
  color: hsl(var(--primary));
  font-size: 0.9rem;
  font-weight: 900;
}

.kb-timeline strong {
  margin-top: auto;
  font-size: clamp(1.08rem, 1.7vw, 1.35rem);
  line-height: 1.1;
}

.kb-timeline small {
  color: hsl(var(--muted-foreground));
  font-size: 0.93rem;
  line-height: 1.5;
}

.kb-index-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 42px 56px;
}

.kb-index-cluster {
  border-top: 2px solid hsl(var(--foreground));
  padding-top: 16px;
}

.kb-index-cluster header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 14px;
}

.kb-index-cluster header span {
  order: 2;
  color: hsl(var(--muted-foreground));
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.kb-index-cluster h3 {
  color: hsl(var(--foreground));
  font-size: clamp(1.25rem, 2vw, 1.65rem);
}

.kb-index-cluster ul {
  display: grid;
  gap: 7px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.kb-index-cluster li {
  margin: 0;
}

.kb-index-cluster a {
  position: relative;
  display: block;
  padding: 8px 0 8px 18px;
  color: hsl(var(--muted-foreground));
  line-height: 1.45;
  text-decoration: none;
  transition:
    color 150ms ease,
    transform 150ms ease;
}

.kb-index-cluster a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.1em;
  width: 5px;
  height: 5px;
  border-radius: 999px;
  background: color-mix(in srgb, hsl(var(--primary)) 55%, hsl(var(--border)) 45%);
  transition:
    transform 150ms ease,
    background-color 150ms ease;
}

.kb-index-cluster a:hover {
  color: hsl(var(--foreground));
  transform: translateX(4px);
}

.kb-index-cluster a:hover::before {
  background: hsl(var(--primary));
  transform: scale(1.5);
}

.kb-index-cluster-alert {
  border-top-color: color-mix(in srgb, hsl(var(--warning)) 70%, hsl(var(--foreground)) 30%);
}

@media (max-width: 1080px) {
  .kb-workspace {
    grid-template-columns: 248px minmax(0, 1fr);
  }

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

  .kb-timeline li:nth-child(3) {
    border-left: 0;
    border-top: 1px solid hsl(var(--border));
  }

  .kb-timeline li:nth-child(4) {
    border-top: 1px solid hsl(var(--border));
  }
}

@media (max-width: 820px) {
  .kb-workspace {
    display: block;
  }

  .kb-mobile-bar {
    position: sticky;
    top: 0;
    z-index: 45;
    min-height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 10px 14px;
    border-bottom: 1px solid hsl(var(--border));
    background: color-mix(in srgb, hsl(var(--background)) 90%, transparent);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
  }

  .kb-rail {
    position: static;
    height: auto;
    display: block;
    border-right: 0;
    border-bottom: 1px solid hsl(var(--border));
  }

  .kb-rail-head,
  .kb-rail-foot {
    display: none;
  }

  .kb-rail-nav {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding: 8px 14px 10px;
  }

  .kb-rail-nav p {
    display: none;
  }

  .kb-rail-nav a {
    flex: 0 0 auto;
    min-height: 34px;
    padding: 7px 10px;
    white-space: nowrap;
    border: 1px solid hsl(var(--border));
    background: hsl(var(--card));
  }

  .kb-workspace-main {
    padding: 52px 14px 60px;
  }

  .kb-command h1 {
    max-width: 10ch;
  }

  .kb-command-search {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .kb-command-search kbd {
    display: none;
  }

  .kb-timeline,
  .kb-index-grid {
    grid-template-columns: 1fr;
  }

  .kb-timeline li + li,
  .kb-timeline li:nth-child(3),
  .kb-timeline li:nth-child(4) {
    border-left: 0;
    border-top: 1px solid hsl(var(--border));
  }

  .kb-timeline a {
    min-height: 160px;
  }

  .kb-index-grid {
    gap: 32px;
  }
}

.kb-hub {
  background:
    radial-gradient(circle at top left, color-mix(in srgb, hsl(var(--accent)) 48%, transparent), transparent 26rem),
    linear-gradient(180deg, color-mix(in srgb, hsl(var(--background)) 96%, hsl(var(--accent)) 4%), hsl(var(--background)));
}

.dark .kb-hub {
  background:
    radial-gradient(circle at top left, rgba(20, 184, 166, 0.1), transparent 26rem),
    linear-gradient(180deg, hsl(222 47% 7%), hsl(var(--background)));
}

.kb-hub-layout {
  min-height: 100vh;
  display: flex;
}

.kb-hub-rail {
  width: 292px;
  flex: 0 0 292px;
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  border-right: 1px solid hsl(var(--border));
  background: color-mix(in srgb, hsl(var(--background)) 86%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.kb-hub-brand-block,
.kb-hub-tags,
.kb-hub-rail-footer {
  padding: 22px;
}

.kb-hub-brand-block {
  border-bottom: 1px solid hsl(var(--border));
}

.kb-hub-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: hsl(var(--foreground));
  text-decoration: none;
}

.kb-hub-brand > span:last-child {
  display: grid;
  gap: 2px;
}

.kb-hub-brand strong {
  font-size: 1rem;
  letter-spacing: -0.01em;
}

.kb-hub-brand small {
  color: hsl(var(--muted-foreground));
  font-size: 0.82rem;
  font-weight: 600;
}

.kb-hub-brand-mark {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: linear-gradient(135deg, hsl(var(--foreground)), hsl(var(--primary)));
  color: hsl(var(--primary-foreground));
  font-weight: 900;
}

.kb-hub-site-link {
  display: inline-flex;
  margin-top: 14px;
  margin-left: 52px;
  color: hsl(var(--muted-foreground));
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
}

.kb-hub-site-link:hover {
  color: hsl(var(--foreground));
}

.kb-hub-nav {
  flex: 1;
  padding: 22px 14px;
  overflow-y: auto;
}

.kb-hub-nav p,
.kb-hub-tags p {
  margin: 0 10px 10px;
  color: hsl(var(--muted-foreground));
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.kb-hub-nav a {
  display: flex;
  align-items: center;
  min-height: 38px;
  margin: 2px 0;
  padding: 8px 10px;
  border-radius: 10px;
  color: hsl(var(--muted-foreground));
  font-size: 0.93rem;
  font-weight: 650;
  text-decoration: none;
  transition:
    background-color 150ms ease,
    color 150ms ease,
    transform 120ms ease;
}

.kb-hub-nav a:hover,
.kb-hub-nav a.is-active {
  background: color-mix(in srgb, hsl(var(--primary)) 8%, hsl(var(--card)) 92%);
  color: hsl(var(--foreground));
}

.kb-hub-nav a:hover {
  transform: translateX(2px);
}

.kb-hub-tags {
  border-top: 1px solid hsl(var(--border));
}

.kb-hub-tags > div {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.kb-hub-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border: 1px solid hsl(var(--border));
  border-radius: 999px;
  background: color-mix(in srgb, hsl(var(--card)) 88%, transparent);
  color: hsl(var(--muted-foreground));
  font-size: 0.78rem;
  font-weight: 700;
}

.kb-hub-rail-footer {
  margin-top: auto;
  border-top: 1px solid hsl(var(--border));
}

.kb-hub-main {
  min-width: 0;
  flex: 1;
}

.kb-hub-mobile-bar {
  display: none;
}

.kb-hub-content {
  width: min(calc(100% - 32px), 1120px);
  margin: 0 auto;
  padding: 56px 0 88px;
}

.kb-hub-hero {
  max-width: 820px;
  margin-bottom: 72px;
}

.kb-hub-kicker {
  color: hsl(var(--primary));
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.kb-hub-hero h1 {
  margin-top: 18px;
  max-width: 11ch;
  color: hsl(var(--foreground));
  font-size: clamp(3rem, 8vw, 6.2rem);
  letter-spacing: -0.05em;
  line-height: 0.92;
  font-family:
    "Avenir Next",
    "Segoe UI",
    sans-serif;
}

.kb-hub-hero p {
  max-width: 42rem;
  margin: 20px 0 0;
  color: hsl(var(--muted-foreground));
  font-size: clamp(1.02rem, 1.5vw, 1.18rem);
  line-height: 1.7;
}

.kb-hub-search {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  margin-top: 34px;
  padding: 16px 18px;
  border: 1px solid hsl(var(--border));
  border-radius: 18px;
  background: color-mix(in srgb, hsl(var(--card)) 92%, hsl(var(--background)) 8%);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.06);
}

.dark .kb-hub-search {
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.24);
}

.kb-hub-search:focus-within {
  border-color: color-mix(in srgb, hsl(var(--primary)) 48%, hsl(var(--border)));
  box-shadow: 0 0 0 4px color-mix(in srgb, hsl(var(--primary)) 14%, transparent);
}

.kb-hub-search > span {
  color: hsl(var(--primary));
  font-size: 1.25rem;
  font-weight: 900;
}

.kb-hub-search input {
  width: 100%;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: hsl(var(--foreground));
  font: inherit;
  font-size: clamp(1rem, 1.6vw, 1.15rem);
}

.kb-hub-search input::placeholder {
  color: hsl(var(--muted-foreground));
}

.kb-hub-search kbd {
  padding: 6px 8px;
  border: 1px solid hsl(var(--border));
  border-radius: 8px;
  background: hsl(var(--background));
  color: hsl(var(--muted-foreground));
  font-size: 0.76rem;
  font-weight: 800;
}

.kb-hub-shortcuts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.kb-hub-shortcuts a,
.kb-hub-step a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 8px 12px;
  border-radius: 999px;
  background: color-mix(in srgb, hsl(var(--primary)) 10%, hsl(var(--card)) 90%);
  color: hsl(var(--foreground));
  font-size: 0.88rem;
  font-weight: 750;
  text-decoration: none;
  transition:
    background-color 150ms ease,
    color 150ms ease,
    transform 120ms ease;
}

.kb-hub-shortcuts a:hover,
.kb-hub-step a:hover {
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  transform: translateY(-1px);
}

.kb-hub-section {
  margin-top: 72px;
  scroll-margin-top: 28px;
}

.kb-hub-section-head {
  margin-bottom: 22px;
}

.kb-hub-section-head h2 {
  color: hsl(var(--foreground));
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  letter-spacing: -0.03em;
}

.kb-hub-section-head p {
  margin: 8px 0 0;
  max-width: 48rem;
}

.kb-hub-onboarding {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.kb-hub-step {
  padding: 22px;
  border: 1px solid hsl(var(--border));
  border-radius: 20px;
  background: color-mix(in srgb, hsl(var(--card)) 92%, hsl(var(--background)) 8%);
  transition:
    border-color 150ms ease,
    transform 150ms ease,
    box-shadow 150ms ease;
}

.kb-hub-step:hover {
  border-color: color-mix(in srgb, hsl(var(--primary)) 34%, hsl(var(--border)));
  transform: translateY(-2px);
  box-shadow: 0 18px 36px rgba(15, 23, 42, 0.06);
}

.dark .kb-hub-step:hover {
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.22);
}

.kb-hub-step span {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: color-mix(in srgb, hsl(var(--primary)) 12%, hsl(var(--card)) 88%);
  color: hsl(var(--primary));
  font-size: 0.88rem;
  font-weight: 900;
}

.kb-hub-step h3 {
  margin: 18px 0 8px;
  color: hsl(var(--foreground));
  font-size: clamp(1.12rem, 1.8vw, 1.42rem);
  line-height: 1.1;
}

.kb-hub-step p {
  min-height: 4.8em;
  margin: 0 0 18px;
  font-size: 0.95rem;
}

.kb-hub-bento {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.kb-hub-featured,
.kb-hub-mini-card {
  border: 1px solid hsl(var(--border));
  background: color-mix(in srgb, hsl(var(--card)) 92%, hsl(var(--background)) 8%);
  transition:
    border-color 150ms ease,
    transform 150ms ease,
    box-shadow 150ms ease;
}

.kb-hub-featured:hover,
.kb-hub-mini-card:hover {
  border-color: color-mix(in srgb, hsl(var(--primary)) 34%, hsl(var(--border)));
  transform: translateY(-2px);
  box-shadow: 0 18px 36px rgba(15, 23, 42, 0.06);
}

.dark .kb-hub-featured:hover,
.dark .kb-hub-mini-card:hover {
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.22);
}

.kb-hub-featured {
  grid-row: span 2;
  padding: 28px;
  border-radius: 24px;
  background:
    radial-gradient(circle at top right, color-mix(in srgb, hsl(var(--primary)) 14%, transparent), transparent 42%),
    color-mix(in srgb, hsl(var(--card)) 92%, hsl(var(--background)) 8%);
}

.kb-hub-card-icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: color-mix(in srgb, hsl(var(--primary)) 12%, hsl(var(--card)) 88%);
  color: hsl(var(--primary));
  font-size: 1.15rem;
  font-weight: 900;
}

.kb-hub-featured h3,
.kb-hub-mini-card h3 {
  margin: 18px 0 10px;
  color: hsl(var(--foreground));
}

.kb-hub-featured h3 {
  font-size: clamp(1.5rem, 2.4vw, 2rem);
}

.kb-hub-mini-card {
  min-height: 250px;
  display: flex;
  flex-direction: column;
  padding: 22px;
  border-radius: 22px;
}

.kb-hub-mini-card h3 {
  font-size: 1.25rem;
}

.kb-hub-featured p,
.kb-hub-mini-card p {
  margin: 0 0 18px;
  font-size: 0.96rem;
}

.kb-hub-featured ul,
.kb-hub-mini-card a {
  margin-top: auto;
}

.kb-hub-featured ul {
  display: grid;
  gap: 9px;
  padding: 0;
  list-style: none;
}

.kb-hub-featured li {
  margin: 0;
}

.kb-hub-featured a,
.kb-hub-mini-card a,
.kb-hub-list-row {
  color: hsl(var(--muted-foreground));
  text-decoration: none;
  transition:
    color 150ms ease,
    transform 150ms ease;
}

.kb-hub-featured a,
.kb-hub-mini-card a {
  position: relative;
  display: block;
  padding: 7px 0 7px 16px;
  line-height: 1.45;
}

.kb-hub-featured a::before,
.kb-hub-mini-card a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.05em;
  width: 5px;
  height: 5px;
  border-radius: 999px;
  background: color-mix(in srgb, hsl(var(--primary)) 52%, hsl(var(--border)) 48%);
}

.kb-hub-featured a:hover,
.kb-hub-mini-card a:hover {
  color: hsl(var(--foreground));
  transform: translateX(3px);
}

.kb-hub-mini-card-alert .kb-hub-card-icon {
  background: color-mix(in srgb, hsl(var(--warning)) 14%, hsl(var(--card)) 86%);
  color: color-mix(in srgb, hsl(var(--warning)) 76%, hsl(var(--foreground)) 24%);
}

.kb-hub-list {
  border-top: 1px solid hsl(var(--border));
}

.kb-hub-list-row {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  min-height: 72px;
  padding: 10px 0;
  border-bottom: 1px solid hsl(var(--border));
}

.kb-hub-list-row span {
  color: hsl(var(--muted-foreground));
  font-size: 0.92rem;
  font-weight: 900;
}

.kb-hub-list-row strong {
  color: hsl(var(--foreground));
  font-size: 1rem;
  line-height: 1.35;
}

.kb-hub-list-row em {
  min-width: 110px;
  color: hsl(var(--muted-foreground));
  font-size: 0.82rem;
  font-style: normal;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: right;
}

.kb-hub-list-row:hover strong,
.kb-hub-list-row:hover em {
  color: hsl(var(--primary));
}

@media (max-width: 1120px) {
  .kb-hub-rail {
    width: 248px;
    flex-basis: 248px;
  }

  .kb-hub-onboarding {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .kb-hub-bento {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .kb-hub-featured {
    grid-column: 1 / -1;
    grid-row: auto;
  }
}

@media (max-width: 860px) {
  .kb-hub-layout {
    display: block;
  }

  .kb-hub-rail {
    width: auto;
    height: auto;
    position: static;
    border-right: 0;
    border-bottom: 1px solid hsl(var(--border));
    background: color-mix(in srgb, hsl(var(--background)) 94%, transparent);
  }

  .kb-hub-brand-block,
  .kb-hub-tags,
  .kb-hub-rail-footer {
    display: none;
  }

  .kb-hub-mobile-bar {
    position: sticky;
    top: 0;
    z-index: 40;
    min-height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 14px;
    border-bottom: 1px solid hsl(var(--border));
    background: color-mix(in srgb, hsl(var(--background)) 92%, transparent);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }

  .kb-hub-nav {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding: 10px 14px;
  }

  .kb-hub-nav p {
    display: none;
  }

  .kb-hub-nav a {
    flex: 0 0 auto;
    white-space: nowrap;
    border: 1px solid hsl(var(--border));
    background: hsl(var(--card));
  }

  .kb-hub-content {
    width: min(calc(100% - 28px), 1120px);
    padding: 40px 0 72px;
  }

  .kb-hub-search {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .kb-hub-search kbd {
    display: none;
  }

  .kb-hub-onboarding,
  .kb-hub-bento,
  .kb-hub-list-row {
    grid-template-columns: 1fr;
  }

  .kb-hub-step p {
    min-height: 0;
  }

  .kb-hub-list-row {
    gap: 4px;
    padding: 14px 0;
  }

  .kb-hub-list-row em {
    min-width: 0;
    text-align: left;
  }
}

/* AIDesigner final design adoption: main KB hub */
.kb-help {
  min-height: 100vh;
  background: hsl(var(--background));
  color: hsl(var(--foreground));
}

.kb-help-container {
  width: min(calc(100% - 32px), 1180px);
  margin: 0 auto;
}

.kb-help-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid hsl(var(--border));
  background: color-mix(in srgb, hsl(var(--background)) 92%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.kb-help-header-inner {
  width: min(calc(100% - 32px), 1180px);
  min-height: 66px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px;
}

.kb-help-brand,
.kb-help-actions,
.kb-help-nav,
.kb-help-popular,
.kb-help-support div div,
.kb-help-footer .kb-help-container {
  display: flex;
  align-items: center;
}

.kb-help-brand {
  gap: 12px;
}

.kb-help-brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  font-size: 1.05rem;
  font-weight: 900;
  letter-spacing: -0.04em;
}

.kb-help-brand strong {
  display: block;
  color: hsl(var(--foreground));
  font-size: 0.9rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}

.kb-help-brand small {
  display: block;
  margin-top: 2px;
  color: hsl(var(--muted-foreground));
  font-size: 0.75rem;
  font-weight: 700;
}

.kb-help-nav {
  justify-content: center;
  gap: 6px;
}

.kb-help-nav a,
.kb-help-site-link {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  border-radius: 10px;
  color: hsl(var(--muted-foreground));
  font-size: 0.88rem;
  font-weight: 800;
  transition:
    background-color 150ms ease,
    color 150ms ease,
    transform 150ms ease;
}

.kb-help-nav a {
  padding: 0 12px;
}

.kb-help-nav a:hover,
.kb-help-site-link:hover {
  background: hsl(var(--secondary));
  color: hsl(var(--foreground));
}

.kb-help-actions {
  justify-content: flex-end;
  gap: 12px;
}

.kb-language-switcher {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 4px;
  border: 1px solid hsl(var(--border));
  border-radius: 999px;
  background: color-mix(in srgb, hsl(var(--secondary)) 72%, hsl(var(--card)) 28%);
}

.kb-language-switcher a {
  min-width: 34px;
  min-height: 32px;
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  color: hsl(var(--muted-foreground));
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition:
    background-color 150ms ease,
    color 150ms ease,
    box-shadow 150ms ease,
    transform 120ms ease;
}

.kb-language-switcher a:hover {
  color: hsl(var(--foreground));
}

.kb-language-switcher a.is-active {
  background: hsl(var(--card));
  color: hsl(var(--foreground));
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.1);
}

.kb-help-site-link {
  padding: 0 14px;
  border: 1px solid hsl(var(--border));
  color: hsl(var(--foreground));
  gap: 7px;
}

.kb-help-site-link svg {
  width: 15px;
  height: 15px;
}

.kb-help-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid hsl(var(--border));
  background: hsl(var(--card));
}

.kb-help-hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 83% 12%, color-mix(in srgb, hsl(var(--primary)) 13%, transparent), transparent 34%),
    linear-gradient(135deg, hsl(var(--secondary)), hsl(var(--card)) 58%);
}

.dark .kb-help-hero-bg {
  background:
    radial-gradient(circle at 83% 12%, color-mix(in srgb, hsl(var(--primary)) 18%, transparent), transparent 36%),
    linear-gradient(135deg, color-mix(in srgb, hsl(var(--secondary)) 72%, hsl(var(--background))), hsl(var(--card)) 64%);
}

.kb-help-hero-inner {
  position: relative;
  z-index: 1;
  max-width: 790px;
  padding: 88px 0 74px;
  text-align: center;
}

.kb-help-kicker {
  margin: 0 0 14px;
  color: hsl(var(--primary));
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  line-height: 1.4;
  text-transform: uppercase;
}

.kb-help h1 {
  color: hsl(var(--foreground));
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  font-weight: 900;
  letter-spacing: -0.055em;
}

.kb-help-lead {
  max-width: 620px;
  margin: 18px auto 30px;
  color: hsl(var(--muted-foreground));
  font-size: clamp(1rem, 2vw, 1.18rem);
}

.kb-help-search {
  position: relative;
  min-height: 58px;
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr) auto;
  align-items: center;
  gap: 0;
  max-width: 690px;
  margin: 0 auto;
  overflow: hidden;
  border: 1px solid hsl(var(--input));
  border-radius: 18px;
  background: hsl(var(--card));
  box-shadow:
    0 18px 44px rgba(15, 23, 42, 0.08),
    0 2px 8px rgba(15, 23, 42, 0.04);
}

.dark .kb-help-search {
  box-shadow:
    0 22px 46px rgba(0, 0, 0, 0.22),
    0 2px 8px rgba(0, 0, 0, 0.18);
}

.kb-help-search:focus-within {
  border-color: color-mix(in srgb, hsl(var(--primary)) 62%, hsl(var(--input)));
  box-shadow:
    0 0 0 4px color-mix(in srgb, hsl(var(--primary)) 16%, transparent),
    0 18px 44px rgba(15, 23, 42, 0.08);
}

.kb-help-search-icon {
  display: grid;
  place-items: center;
  color: hsl(var(--muted-foreground));
}

.kb-help-search-icon svg {
  width: 20px;
  height: 20px;
}

.kb-help-search input {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 58px;
  border: 0;
  outline: 0;
  background: transparent;
  color: hsl(var(--foreground));
  font: inherit;
  font-size: 1.05rem;
}

.kb-help-search-hint {
  position: absolute;
  left: 54px;
  right: 76px;
  top: 50%;
  z-index: 1;
  overflow: hidden;
  color: hsl(var(--muted-foreground));
  font-size: 1.05rem;
  line-height: 1;
  pointer-events: none;
  text-align: left;
  text-overflow: ellipsis;
  transform: translateY(-50%);
  white-space: nowrap;
}

.kb-help-search:focus-within .kb-help-search-hint,
.kb-help-search.has-value .kb-help-search-hint {
  display: none;
}

.kb-help-search input::placeholder {
  color: hsl(var(--muted-foreground));
}

.kb-help-search kbd {
  margin-right: 14px;
  padding: 4px 8px;
  border: 1px solid hsl(var(--border));
  border-radius: 8px;
  color: hsl(var(--muted-foreground));
  background: hsl(var(--secondary));
  font-size: 0.75rem;
  font-weight: 900;
}

.kb-help-popular {
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
  color: hsl(var(--muted-foreground));
  font-size: 0.9rem;
}

.kb-help-popular a {
  color: hsl(var(--primary));
  font-weight: 850;
}

.kb-help-popular a:hover {
  text-decoration: underline;
}

.kb-help-main {
  padding: 68px 0 82px;
}

.kb-help-section + .kb-help-section {
  margin-top: 80px;
}

.kb-help-section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 24px;
  margin-bottom: 28px;
}

.kb-help-section-head div {
  display: flex;
  align-items: center;
  gap: 10px;
}

.kb-help-section-head span {
  color: color-mix(in srgb, hsl(var(--muted-foreground)) 44%, transparent);
  font-size: 1.72rem;
  font-weight: 500;
}

.kb-help-section-head h2 {
  color: hsl(var(--foreground));
  font-size: clamp(1.55rem, 3.2vw, 2.2rem);
  font-weight: 900;
  letter-spacing: -0.04em;
}

.kb-help-section-head p {
  max-width: 470px;
  margin: 0;
  text-align: right;
  font-size: 0.96rem;
}

.kb-help-section-head-compact {
  display: block;
}

.kb-help-section-head-compact p {
  margin-top: 8px;
  text-align: left;
}

.kb-help-quick-grid,
.kb-help-bento {
  display: grid;
  gap: 18px;
}

.kb-help-quick-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.kb-help-step,
.kb-help-topic {
  border: 1px solid hsl(var(--border));
  background: hsl(var(--card));
  transition:
    border-color 160ms ease,
    box-shadow 160ms ease,
    transform 160ms ease;
}

.kb-help-step:hover,
.kb-help-topic:hover {
  border-color: color-mix(in srgb, hsl(var(--primary)) 36%, hsl(var(--border)));
  transform: translateY(-3px);
  box-shadow: 0 18px 38px rgba(15, 23, 42, 0.08);
}

.dark .kb-help-step:hover,
.dark .kb-help-topic:hover {
  box-shadow: 0 18px 38px rgba(0, 0, 0, 0.26);
}

.kb-help-step {
  min-height: 245px;
  padding: 28px;
  border-radius: 22px;
}

.kb-help-step > span {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border: 1px solid hsl(var(--border));
  border-radius: 12px;
  background: hsl(var(--secondary));
  color: hsl(var(--muted-foreground));
  font-size: 0.9rem;
  font-weight: 900;
}

.kb-help-step:hover > span {
  border-color: color-mix(in srgb, hsl(var(--primary)) 34%, hsl(var(--border)));
  background: color-mix(in srgb, hsl(var(--primary)) 10%, hsl(var(--card)));
  color: hsl(var(--primary));
}

.kb-help-step h3,
.kb-help-topic h3 {
  color: hsl(var(--foreground));
  font-weight: 900;
}

.kb-help-step h3 {
  margin-top: 28px;
  font-size: 1.22rem;
}

.kb-help-step p {
  min-height: 4.8em;
  margin: 10px 0 22px;
  font-size: 0.92rem;
}

.kb-help-step a {
  color: hsl(var(--foreground));
  font-size: 0.86rem;
  font-weight: 900;
}

.kb-help-step a::after {
  content: " →";
  color: hsl(var(--primary));
}

.kb-help-bento {
  grid-template-columns: minmax(0, 1.55fr) repeat(2, minmax(0, 1fr));
  align-items: stretch;
}

.kb-help-topic {
  min-height: 260px;
  display: flex;
  flex-direction: column;
  padding: 28px;
  border-radius: 24px;
}

.kb-help-topic-featured {
  grid-row: span 2;
  min-height: 538px;
  overflow: hidden;
  background:
    radial-gradient(circle at 108% 106%, color-mix(in srgb, hsl(var(--primary)) 12%, transparent), transparent 42%),
    hsl(var(--secondary));
}

.kb-help-topic-icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  background: color-mix(in srgb, hsl(var(--primary)) 12%, hsl(var(--card)));
  color: hsl(var(--primary));
  font-size: 1.15rem;
  font-weight: 900;
}

.kb-help-topic-icon svg {
  width: 20px;
  height: 20px;
}

.kb-help-topic-icon-blue {
  background: color-mix(in srgb, hsl(217 91% 60%) 12%, hsl(var(--card)));
  color: hsl(217 91% 54%);
}

.kb-help-topic-icon-amber {
  background: color-mix(in srgb, hsl(var(--warning)) 14%, hsl(var(--card)));
  color: color-mix(in srgb, hsl(var(--warning)) 80%, hsl(var(--foreground)));
}

.kb-help-topic-icon-red {
  background: color-mix(in srgb, hsl(var(--destructive)) 12%, hsl(var(--card)));
  color: hsl(var(--destructive));
}

.kb-help-topic h3 {
  margin: 22px 0 10px;
  font-size: 1.18rem;
}

.kb-help-topic-featured h3 {
  font-size: clamp(1.65rem, 2.8vw, 2.2rem);
}

.kb-help-topic p {
  margin: 0 0 20px;
  font-size: 0.92rem;
}

.kb-help-topic ul {
  display: grid;
  gap: 3px;
  margin: auto 0 0;
  padding: 0;
  list-style: none;
}

.kb-help-topic li {
  margin: 0;
}

.kb-help-topic > a,
.kb-help-topic li a {
  position: relative;
  display: block;
  padding: 8px 0 8px 16px;
  color: hsl(var(--muted-foreground));
  font-size: 0.92rem;
  font-weight: 720;
  line-height: 1.4;
  transition:
    color 150ms ease,
    transform 150ms ease;
}

.kb-help-topic > a:first-of-type {
  margin-top: auto;
}

.kb-help-topic > a::before,
.kb-help-topic li a::before {
  content: "";
  position: absolute;
  top: 1.12em;
  left: 0;
  width: 5px;
  height: 5px;
  border-radius: 999px;
  background: color-mix(in srgb, hsl(var(--primary)) 55%, hsl(var(--border)));
}

.kb-help-topic > a:hover,
.kb-help-topic li a:hover {
  color: hsl(var(--foreground));
  transform: translateX(3px);
}

.kb-help-list {
  border-top: 1px solid hsl(var(--border));
}

.kb-help-list-row {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px;
  min-height: 78px;
  border-bottom: 1px solid hsl(var(--border));
}

.kb-help-list-row span {
  color: hsl(var(--muted-foreground));
  font-size: 0.9rem;
  font-weight: 900;
}

.kb-help-list-row strong {
  color: hsl(var(--foreground));
  font-size: 1.02rem;
}

.kb-help-list-row em {
  min-width: 118px;
  color: hsl(var(--muted-foreground));
  font-size: 0.78rem;
  font-style: normal;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-align: right;
  text-transform: uppercase;
}

.kb-help-list-row:hover strong,
.kb-help-list-row:hover em {
  color: hsl(var(--primary));
}

.kb-empty-state {
  margin: 36px 0 0;
  padding: 18px 20px;
  border: 1px solid hsl(var(--border));
  border-radius: 16px;
  background: hsl(var(--secondary));
  color: hsl(var(--muted-foreground));
  font-weight: 800;
  text-align: center;
}

.kb-help-support {
  border-top: 1px solid color-mix(in srgb, hsl(var(--primary)) 22%, hsl(var(--border)));
  background: color-mix(in srgb, hsl(var(--primary)) 9%, hsl(var(--background)));
  padding: 54px 0;
  text-align: center;
}

.kb-help-support h2 {
  color: color-mix(in srgb, hsl(var(--primary)) 72%, hsl(var(--foreground)));
  font-size: clamp(1.35rem, 2.6vw, 1.8rem);
  font-weight: 900;
}

.kb-help-support p {
  max-width: 600px;
  margin: 10px auto 24px;
}

.kb-help-support div div {
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
}

.kb-help-primary,
.kb-help-secondary {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border-radius: 12px;
  font-size: 0.92rem;
  font-weight: 900;
  transition:
    background-color 150ms ease,
    color 150ms ease,
    transform 150ms ease,
    border-color 150ms ease;
}

.kb-help-primary {
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
}

.kb-help-secondary {
  border: 1px solid hsl(var(--border));
  background: hsl(var(--card));
  color: hsl(var(--foreground));
}

.kb-help-primary:hover,
.kb-help-secondary:hover {
  transform: translateY(-1px);
}

.kb-help-footer {
  border-top: 1px solid hsl(var(--border));
  background: hsl(var(--card));
  padding: 26px 0;
}

.kb-help-footer .kb-help-container {
  justify-content: space-between;
  gap: 16px;
  color: hsl(var(--muted-foreground));
  font-size: 0.9rem;
  font-weight: 750;
}

.kb-help-footer a:hover {
  color: hsl(var(--primary));
}

@media (max-width: 980px) {
  .kb-help-header-inner {
    grid-template-columns: 1fr auto;
  }

  .kb-help-nav {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 10px;
  }

  .kb-help-quick-grid,
  .kb-help-bento {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .kb-help-topic-featured {
    grid-column: 1 / -1;
    grid-row: auto;
    min-height: 0;
  }
}

@media (max-width: 720px) {
  .kb-help-container,
  .kb-help-header-inner {
    width: min(calc(100% - 28px), 1180px);
  }

  .kb-help-header-inner {
    min-height: 64px;
    gap: 12px;
  }

  .kb-help-brand small,
  .kb-help-site-link {
    display: none;
  }

  .kb-help-actions {
    gap: 8px;
  }

  .kb-theme-toggle {
    padding: 3px;
  }

  .kb-language-switcher {
    padding: 3px;
  }

  .kb-language-switcher a {
    min-width: 30px;
    min-height: 30px;
    font-size: 0.72rem;
  }

  .kb-theme-toggle button {
    width: 30px;
    height: 30px;
  }

  .kb-help-hero-inner {
    padding: 58px 0 52px;
  }

  .kb-help h1 {
    font-size: clamp(2.35rem, 13vw, 3.3rem);
  }

  .kb-help-search {
    grid-template-columns: 46px minmax(0, 1fr);
    min-height: 54px;
    border-radius: 15px;
  }

  .kb-help-search input {
    height: 54px;
    font-size: 0.96rem;
  }

  .kb-help-search kbd {
    display: none;
  }

  .kb-help-main {
    padding: 48px 0 60px;
  }

  .kb-help-section + .kb-help-section {
    margin-top: 58px;
  }

  .kb-help-section-head {
    display: block;
  }

  .kb-help-section-head p {
    margin-top: 8px;
    text-align: left;
  }

  .kb-help-quick-grid,
  .kb-help-bento,
  .kb-help-list-row {
    grid-template-columns: 1fr;
  }

  .kb-help-step {
    min-height: 0;
    padding: 22px;
  }

  .kb-help-step p {
    min-height: 0;
  }

  .kb-help-topic {
    min-height: 0;
    padding: 22px;
  }

  .kb-help-list-row {
    gap: 4px;
    padding: 16px 0;
  }

  .kb-help-list-row em {
    min-width: 0;
    text-align: left;
  }

  .kb-help-footer .kb-help-container {
    align-items: flex-start;
    flex-direction: column;
  }
}

/* Article redesign shell */
.kb-article-page {
  min-height: 100vh;
  background:
    radial-gradient(circle at top right, color-mix(in srgb, hsl(var(--primary)) 10%, transparent), transparent 24rem),
    linear-gradient(180deg, color-mix(in srgb, hsl(var(--secondary)) 72%, hsl(var(--background))), hsl(var(--background)) 420px);
  color: hsl(var(--foreground));
}

.kb-article-shell {
  padding: 40px 0 80px;
}

.kb-article-container {
  width: min(calc(100% - 32px), 1220px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 28px;
  align-items: start;
}

.kb-article-main {
  min-width: 0;
  padding: 28px;
  border: 1px solid hsl(var(--border));
  border-radius: 28px;
  background:
    radial-gradient(circle at top right, color-mix(in srgb, hsl(var(--primary)) 8%, transparent), transparent 16rem),
    hsl(var(--card));
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
}

.dark .kb-article-main {
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.24);
}

.kb-article-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  color: hsl(var(--primary));
  font-size: 0.8rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.kb-article-title {
  max-width: 18ch;
  color: hsl(var(--foreground));
  font-size: clamp(2.3rem, 4.6vw, 4.1rem);
  font-weight: 900;
  letter-spacing: -0.045em;
  line-height: 1.04;
}

.kb-article-lead {
  max-width: 68ch;
  margin: 18px 0 0;
  color: hsl(var(--muted-foreground));
  font-size: clamp(1rem, 2vw, 1.16rem);
  line-height: 1.75;
}

.kb-article-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.kb-article-jump a {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 14px;
  border: 1px solid hsl(var(--border));
  border-radius: 999px;
  background: hsl(var(--background));
  color: hsl(var(--foreground));
  font-size: 0.9rem;
  font-weight: 800;
  transition:
    transform 120ms ease,
    border-color 150ms ease,
    background-color 150ms ease,
    color 150ms ease;
}

.kb-article-jump a:hover {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, hsl(var(--primary)) 30%, hsl(var(--border)));
  background: color-mix(in srgb, hsl(var(--primary)) 8%, hsl(var(--card)));
}

.kb-article-intro-note {
  margin-top: 24px;
  padding: 18px 20px;
  border: 1px solid color-mix(in srgb, hsl(var(--primary)) 16%, hsl(var(--border)));
  border-radius: 18px;
  background: color-mix(in srgb, hsl(var(--primary)) 7%, hsl(var(--card)));
}

.kb-article-intro-note strong:first-child {
  display: block;
  margin-bottom: 6px;
  color: hsl(var(--foreground));
  font-size: 0.83rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.kb-article-divider {
  height: 1px;
  margin: 28px 0;
  background: hsl(var(--border));
}

.kb-article-prose {
  color: hsl(var(--muted-foreground));
  font-size: 1.02rem;
  line-height: 1.78;
}

.kb-article-prose > :first-child {
  margin-top: 0;
}

.kb-article-prose h2,
.kb-article-prose .section-title {
  scroll-margin-top: 104px;
}

.kb-article-prose h2 {
  margin: 2.8rem 0 1rem;
  color: hsl(var(--foreground));
  font-size: clamp(1.55rem, 2.6vw, 2.1rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.1;
}

.kb-article-prose h3 {
  margin: 1.6rem 0 0.8rem;
  color: hsl(var(--foreground));
  font-size: clamp(1.18rem, 2vw, 1.42rem);
  font-weight: 900;
  line-height: 1.2;
}

.kb-article-step-label {
  display: inline-flex;
  align-items: center;
  margin: 1.8rem 0 0.45rem;
  padding: 5px 9px;
  border-radius: 999px;
  background: color-mix(in srgb, hsl(var(--primary)) 10%, hsl(var(--card)));
  color: hsl(var(--primary)) !important;
  font-size: 0.76rem !important;
  font-weight: 900;
  letter-spacing: 0.08em;
  line-height: 1.2;
  text-transform: uppercase;
}

.kb-article-step-label + h3 {
  margin-top: 0;
}

.kb-article-prose p,
.kb-article-prose li,
.kb-article-prose figcaption {
  color: hsl(var(--muted-foreground));
}

.kb-article-prose ul,
.kb-article-prose ol {
  padding-left: 1.25rem;
}

.kb-article-prose li + li {
  margin-top: 0.35rem;
}

.kb-article-callout {
  margin: 1.6rem 0;
  padding: 18px 20px;
  border-left: 4px solid hsl(var(--primary));
  border-radius: 0 18px 18px 0;
  background: color-mix(in srgb, hsl(var(--primary)) 8%, hsl(var(--card)));
}

.kb-article-callout-muted {
  border-left-color: hsl(var(--border));
  background: color-mix(in srgb, hsl(var(--secondary)) 70%, hsl(var(--card)));
}

.kb-article-callout > :first-child {
  margin-top: 0;
}

.kb-article-callout > :last-child {
  margin-bottom: 0;
}

.kb-article-link-list {
  display: grid;
  gap: 8px;
  margin: 1rem 0;
  padding-left: 0 !important;
  list-style: none;
}

.kb-article-link-list a {
  color: hsl(var(--primary));
  font-weight: 850;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.kb-article-media-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin: 1.8rem 0 2.4rem;
}

.kb-article-figure {
  margin: 0;
}

.kb-article-figure img {
  width: 100%;
  border: 1px solid hsl(var(--border));
  border-radius: 20px;
  background: hsl(var(--card));
  box-shadow: 0 16px 36px rgba(15, 23, 42, 0.08);
}

.kb-article-figure-phone img {
  max-width: 300px;
  margin: 0 auto;
}

.kb-article-figure figcaption {
  margin-top: 10px;
  font-size: 0.9rem;
  line-height: 1.55;
  text-align: center;
}

.kb-article-sidebar {
  position: sticky;
  top: 88px;
}

.kb-article-sidebar[hidden] {
  display: none !important;
}

.kb-article-sidebar-card {
  padding: 20px;
  border: 1px solid hsl(var(--border));
  border-radius: 22px;
  background: color-mix(in srgb, hsl(var(--card)) 92%, hsl(var(--background)) 8%);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.06);
}

.dark .kb-article-sidebar-card {
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
}

.kb-article-sidebar-card h2 {
  margin: 0 0 14px;
  color: hsl(var(--foreground));
  font-size: 0.9rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.kb-article-toc {
  display: grid;
  gap: 6px;
}

.kb-article-toc a {
  display: block;
  padding: 10px 12px;
  border-left: 2px solid transparent;
  border-radius: 0 12px 12px 0;
  color: hsl(var(--muted-foreground));
  font-size: 0.92rem;
  line-height: 1.35;
  transition:
    color 150ms ease,
    border-color 150ms ease,
    background-color 150ms ease,
    transform 150ms ease;
}

.kb-article-toc a:hover {
  color: hsl(var(--foreground));
  background: hsl(var(--secondary));
}

.kb-article-toc a.is-active {
  color: hsl(var(--primary));
  border-left-color: hsl(var(--primary));
  background: color-mix(in srgb, hsl(var(--primary)) 8%, hsl(var(--card)));
}

.kb-article-related {
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid hsl(var(--border));
}

.kb-article-related h2 {
  margin: 0 0 16px;
  color: hsl(var(--foreground));
  font-size: 1.2rem;
  font-weight: 900;
}

.kb-article-related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.kb-article-related-card {
  min-height: 124px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px;
  border: 1px solid hsl(var(--border));
  border-radius: 20px;
  background: color-mix(in srgb, hsl(var(--card)) 92%, hsl(var(--background)) 8%);
  transition:
    transform 120ms ease,
    border-color 150ms ease,
    box-shadow 150ms ease;
}

.kb-article-related-card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, hsl(var(--primary)) 30%, hsl(var(--border)));
  box-shadow: 0 14px 30px rgba(15, 23, 42, 0.06);
}

.kb-article-related-card span {
  color: hsl(var(--primary));
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.kb-article-related-card strong {
  color: hsl(var(--foreground));
  font-size: 1rem;
  line-height: 1.35;
}

.kb-article-footer {
  border-top: 1px solid hsl(var(--border));
  background: hsl(var(--card));
  padding: 26px 0;
}

.kb-article-footer .kb-help-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: hsl(var(--muted-foreground));
  font-size: 0.9rem;
  font-weight: 750;
}

.kb-article-footer a:hover {
  color: hsl(var(--primary));
}

@media (max-width: 1060px) {
  .kb-article-container {
    grid-template-columns: 1fr;
  }

  .kb-article-sidebar {
    position: static;
    order: -1;
  }
}

@media (max-width: 720px) {
  .kb-article-shell {
    padding: 26px 0 56px;
  }

  .kb-article-container {
    width: min(calc(100% - 28px), 1220px);
  }

  .kb-article-main {
    padding: 22px 18px;
    border-radius: 22px;
  }

  .kb-article-title {
    max-width: none;
    font-size: clamp(2rem, 12vw, 3.2rem);
  }

  .kb-article-lead {
    font-size: 1rem;
  }

  .kb-article-related-grid {
    grid-template-columns: 1fr;
  }

  .kb-article-footer .kb-help-container {
    align-items: flex-start;
    flex-direction: column;
  }
}