:root {
  /* Material Design 3 — dark theme */
  --md-surface: #131314;
  --md-surface-container: #1e1f20;
  --md-surface-container-high: #28292a;
  --md-surface-container-highest: #333537;
  --md-on-surface: #e3e3e3;
  --md-on-surface-variant: #c4c7c5;
  --md-outline: #8e918f;
  --md-outline-variant: #444746;
  --md-primary: #a8c7fa;
  --md-on-primary: #062e6f;
  --md-primary-container: #0842a0;
  --md-on-primary-container: #d3e3fd;
  --md-elevation-1: 0 1px 2px rgba(0, 0, 0, 0.3), 0 1px 3px 1px rgba(0, 0, 0, 0.15);
  --md-elevation-2: 0 1px 2px rgba(0, 0, 0, 0.3), 0 2px 6px 2px rgba(0, 0, 0, 0.15);
  --md-state-hover: rgba(168, 199, 250, 0.08);
  --md-state-active: rgba(168, 199, 250, 0.12);
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-pill: 20px;
  --max-page: 1400px;
  --max-legal: 52rem;
  /* Mode tonal colors */
  --mode-compare: #a8c7fa;
  --mode-compare-container: rgba(168, 199, 250, 0.12);
  --mode-compare-border: rgba(168, 199, 250, 0.35);
  --mode-development: #d0bcff;
  --mode-development-container: rgba(208, 188, 255, 0.12);
  --mode-development-border: rgba(208, 188, 255, 0.35);
  --mode-analysis: #6dd58c;
  --mode-analysis-container: rgba(109, 213, 140, 0.12);
  --mode-analysis-border: rgba(109, 213, 140, 0.35);
  --mode-monitoring: #ffb4ab;
  --mode-monitoring-container: rgba(255, 180, 171, 0.12);
  --mode-monitoring-border: rgba(255, 180, 171, 0.35);
  --mode-manifests: #ffb86c;
  --mode-manifests-container: rgba(255, 184, 108, 0.12);
  --mode-manifests-border: rgba(255, 184, 108, 0.35);
  --bmc-bg: #ffdd00;
  --bmc-border: #e6c200;
  --bmc-text: #1a1200;
  --bmc-icon: #1a1200;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 17px;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Helvetica Neue", Arial, sans-serif;
  min-height: 100vh;
  background: var(--md-surface);
  color: var(--md-on-surface);
  line-height: 1.65;
  font-weight: 400;
  text-size-adjust: 100%;
}

a {
  color: var(--md-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.page {
  width: 100%;
  max-width: min(var(--max-page), calc(100vw - 32px));
  margin: 0 auto;
  padding: 24px clamp(12px, 2vw, 28px) 56px;
}

.page--narrow,
.page--legal {
  max-width: min(960px, calc(100vw - 32px));
}

.page--legal .card-legal h1 {
  font-size: clamp(1.625rem, 3vw, 2rem);
  line-height: 1.25;
  color: var(--md-on-surface);
}

.page--legal .card-legal h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--md-on-surface);
  padding-top: 8px;
  border-top: 1px solid var(--md-outline-variant);
  margin-top: 32px;
}

.page--legal .card-legal h2:first-of-type {
  border-top: none;
  margin-top: 0;
  padding-top: 0;
}

.page--legal .card-legal h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--md-on-surface);
}

.page--legal .card-legal a {
  color: var(--md-primary);
}

.page--legal .card-legal strong {
  color: var(--md-on-surface);
  font-weight: 600;
}

.page--legal .card-legal .meta {
  font-size: 14px;
  color: var(--md-on-surface-variant);
  line-height: 1.6;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  background: var(--md-surface-container-high);
  border: 1px solid var(--md-outline-variant);
}

.page--legal .card-legal .note {
  font-size: 13px;
  color: var(--md-on-surface-variant);
  padding: 12px 14px;
  border-radius: var(--radius-md);
  background: var(--md-surface-container-high);
  border-left: 3px solid var(--md-primary);
}

.page--legal .card-legal table {
  font-size: 14px;
  display: block;
  overflow-x: auto;
}

.page--legal .card-legal code {
  color: var(--md-on-primary-container);
  font-size: 13px;
}


/* Header */
.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px 20px;
  margin-bottom: 28px;
}

.site-header__end {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}

.brand:hover {
  text-decoration: none;
}

.brand:hover .brand-name {
  color: var(--md-primary);
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--md-elevation-1);
  flex-shrink: 0;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.brand-name {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  transition: color 0.15s;
}

.brand-tagline {
  font-size: 13px;
  color: var(--md-on-surface-variant);
  line-height: 1.45;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 8px;
  font-size: 15px;
  font-weight: 500;
}

.site-nav a {
  color: var(--md-on-surface-variant);
  padding: 8px 12px;
  border-radius: var(--radius-pill);
  text-decoration: none;
  transition: color 0.15s, background 0.15s;
}

.site-nav a:hover {
  color: var(--md-on-surface);
  background: var(--md-state-hover);
  text-decoration: none;
}

.site-nav a.is-active {
  color: var(--md-on-primary-container);
  background: var(--md-primary-container);
}

.header-pill {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--md-outline-variant);
  color: var(--md-on-surface-variant);
  background: var(--md-surface-container);
}

.lang-select {
  font-family: inherit;
  font-size: 14px;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--md-outline);
  background: var(--md-surface-container);
  color: var(--md-on-surface);
}

.lang-select:focus {
  outline: 2px solid var(--md-primary);
  outline-offset: 2px;
}

/* Hero */
.hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-bottom: 48px;
  padding: 28px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--md-outline-variant);
  background: var(--md-surface-container);
  box-shadow: var(--md-elevation-1);
}

@media (min-width: 880px) {
  .hero {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: center;
    padding: 36px 40px;
  }
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--md-on-surface-variant);
  margin-bottom: 12px;
}

.eyebrow-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--md-primary);
}

.page-title {
  font-size: clamp(1.875rem, 4.5vw, 2.625rem);
  font-weight: 600;
  line-height: 1.25;
  margin-bottom: 14px;
  letter-spacing: normal;
}

.page-title .accent {
  color: var(--md-primary);
  font-weight: 600;
}

.hero-tagline {
  font-size: 1.35rem;
  color: var(--md-on-surface);
  max-width: 44rem;
  margin: 0 0 12px;
  line-height: 1.45;
  font-weight: 500;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--md-on-surface-variant);
  max-width: 44rem;
  margin-bottom: 22px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}

.hero-note {
  font-size: 12px;
  color: var(--md-on-surface-variant);
}

.seo-intro {
  max-width: 52rem;
  margin: 0 auto 2rem;
  padding: 0 24px;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--md-on-surface-variant);
}

.seo-intro a {
  color: var(--md-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.hero-visual {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mock-panel {
  border-radius: var(--radius-md);
  border: 1px solid var(--md-outline-variant);
  background: var(--md-surface-container-high);
  padding: 14px 16px;
  font-size: 12px;
  color: var(--md-on-surface-variant);
}

.mock-panel__bar {
  display: flex;
  gap: 6px;
  margin-bottom: 10px;
}

.mock-panel__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--md-outline-variant);
}

.mock-panel__dot--a {
  background: var(--mode-compare);
}

.mock-panel__dot--b {
  background: var(--mode-development);
}

.mock-panel__dot--c {
  background: var(--mode-analysis);
}

.mock-panel__dot--d {
  background: var(--mode-monitoring);
}

.mock-panel__dot--e {
  background: var(--mode-manifests);
}

.mock-panel__modes {
  font-size: 11px;
  color: var(--md-on-surface-variant);
  margin-bottom: 4px;
}

.mock-diff {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 8px;
}

.mock-diff__col {
  border-radius: 8px;
  border: 1px solid var(--md-outline-variant);
  padding: 8px 8px 6px;
  min-width: 0;
}

.mock-diff__col--left {
  background: var(--mode-compare-container);
  border-color: var(--mode-compare-border);
}

.mock-diff__col--right {
  background: var(--mode-manifests-container);
  border-color: var(--mode-manifests-border);
}

.mock-diff__org {
  display: inline-block;
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--md-on-surface-variant);
  margin-bottom: 6px;
}

.mock-diff__col--left .mock-diff__org {
  color: var(--mode-compare);
}

.mock-diff__col--right .mock-diff__org {
  color: var(--mode-manifests);
}

.mock-code {
  margin: 0;
  font-family: ui-monospace, "Cascadia Code", "Consolas", monospace;
  font-size: 9px;
  line-height: 1.45;
  color: var(--md-on-surface-variant);
  overflow: hidden;
  white-space: pre;
}

.mock-code__line {
  display: block;
}

.mock-code__line--diff-left {
  background: rgba(255, 180, 171, 0.18);
  box-shadow: inset 2px 0 0 var(--mode-monitoring);
  margin: 0 -4px;
  padding: 0 4px;
  border-radius: 2px;
}

.mock-code__line--diff-right {
  background: rgba(109, 213, 140, 0.18);
  box-shadow: inset 2px 0 0 var(--mode-analysis);
  margin: 0 -4px;
  padding: 0 4px;
  border-radius: 2px;
}

.mock-diff__caption {
  margin: 8px 0 0;
  font-size: 10px;
  color: var(--md-on-surface-variant);
  line-height: 1.4;
}

/* Buttons — MD3 filled / outlined / tonal */
.btn-primary,
.btn-secondary,
.btn-bmc {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 26px;
  border-radius: var(--radius-pill);
  font-family: inherit;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.35;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s, box-shadow 0.15s, border-color 0.15s;
  letter-spacing: normal;
  white-space: nowrap;
}

.btn-primary:hover,
.btn-secondary:hover,
.btn-bmc:hover {
  text-decoration: none;
}

.btn-primary {
  background: var(--md-primary);
  color: var(--md-on-primary);
  box-shadow: var(--md-elevation-1);
}

.btn-primary:hover {
  box-shadow: var(--md-elevation-2);
  filter: brightness(1.05);
}

.btn-secondary {
  background: transparent;
  color: var(--md-primary);
  border-color: var(--md-outline);
}

.btn-secondary:hover {
  background: var(--md-state-hover);
}

.btn-bmc {
  background: var(--bmc-bg);
  color: var(--bmc-text);
  border-color: var(--bmc-border);
  box-shadow: var(--md-elevation-1);
}

.btn-bmc:hover {
  filter: brightness(1.04);
  box-shadow: var(--md-elevation-2);
}

.btn-bmc__icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  display: block;
}

.btn-primary svg,
.btn-secondary svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* Sections */
.section {
  margin-bottom: 48px;
}

.section__head {
  margin-bottom: 22px;
}

.section__title {
  font-size: 1.625rem;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: normal;
  line-height: 1.3;
}

.section__lead {
  color: var(--md-on-surface-variant);
  max-width: 52rem;
  font-size: 1.0625rem;
  line-height: 1.6;
}

/* Steps */
.steps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 720px) {
  .steps-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.step-card {
  padding: 20px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--md-outline-variant);
  background: var(--md-surface-container);
  box-shadow: var(--md-elevation-1);
}

.step-card__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  margin-bottom: 12px;
}

.step-card__title {
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 8px;
}

.step-card__text {
  font-size: 15px;
  color: var(--md-on-surface-variant);
  line-height: 1.55;
}

/* Mode sections */
.mode-section {
  margin-bottom: 40px;
  padding-top: 8px;
  scroll-margin-top: 80px;
}

.mode-section__header {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 18px;
}

.mode-badge {
  flex-shrink: 0;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--md-outline-variant);
}

.mode-badge--compare {
  color: var(--mode-compare);
  border-color: var(--mode-compare-border);
  background: var(--mode-compare-container);
}

.mode-badge--development {
  color: var(--mode-development);
  border-color: var(--mode-development-border);
  background: var(--mode-development-container);
}

.mode-badge--analysis {
  color: var(--mode-analysis);
  border-color: var(--mode-analysis-border);
  background: var(--mode-analysis-container);
}

.mode-badge--monitoring {
  color: var(--mode-monitoring);
  border-color: var(--mode-monitoring-border);
  background: var(--mode-monitoring-container);
}

.mode-badge--manifests {
  color: var(--mode-manifests);
  border-color: var(--mode-manifests-border);
  background: var(--mode-manifests-container);
}

.mode-section__title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.mode-section__text {
  font-size: 15px;
  color: var(--md-on-surface-variant);
  line-height: 1.6;
}

.tool-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

@media (min-width: 640px) {
  .tool-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 960px) {
  .tool-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.tool-card {
  padding: 18px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--md-outline-variant);
  background: var(--md-surface-container);
  box-shadow: var(--md-elevation-1);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.tool-card:hover {
  border-color: var(--md-outline);
  box-shadow: var(--md-elevation-2);
}

.tool-card__title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--md-on-surface);
  line-height: 1.35;
}

.tool-card__pitch {
  font-size: 15px;
  color: var(--md-on-surface);
  line-height: 1.55;
  margin-bottom: 14px;
}

.tool-card__benefits-label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--md-on-surface-variant);
  margin-bottom: 8px;
}

.tool-card__benefits {
  margin: 0;
  padding-left: 1.1rem;
  font-size: 13px;
  color: var(--md-on-surface-variant);
  list-style: disc;
  line-height: 1.5;
}

.tool-card__benefits li {
  margin-bottom: 6px;
  line-height: 1.45;
}

.tool-card__benefits li:last-child {
  margin-bottom: 0;
}

/* Quick open */
.quick-open {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 24px;
  padding: 22px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--md-outline-variant);
  background: var(--md-surface-container);
  box-shadow: var(--md-elevation-1);
}

.quick-open__keys {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
}

.kbd-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.kbd-group__label {
  font-size: 11px;
  color: var(--md-on-surface-variant);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.kbd {
  display: inline-block;
  font-family: ui-monospace, monospace;
  font-size: 13px;
  padding: 6px 12px;
  border-radius: 8px;
  border: 1px solid var(--md-outline-variant);
  background: var(--md-surface-container-high);
  color: var(--md-on-surface);
}

/* Install list */
.install-list {
  list-style: none;
  counter-reset: install;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
}

.install-list li {
  counter-increment: install;
  padding-left: 2rem;
  position: relative;
  font-size: 15px;
  color: var(--md-on-surface-variant);
  line-height: 1.55;
}

.install-list li::before {
  content: counter(install);
  position: absolute;
  left: 0;
  top: 0;
  width: 1.4rem;
  height: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 500;
  border-radius: 6px;
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
}

/* Footer */
.site-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 28px;
  margin-top: 16px;
  border-top: 1px solid var(--md-outline-variant);
  font-size: 13px;
  color: var(--md-on-surface-variant);
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
}

.link {
  color: var(--md-primary);
}

/* Legal / uninstall */
.card-legal {
  padding: 28px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--md-outline-variant);
  background: var(--md-surface-container);
  box-shadow: var(--md-elevation-1);
}

.card-legal h1 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 14px;
}

.card-legal h2 {
  font-size: 1.15rem;
  font-weight: 500;
  margin: 24px 0 10px;
}

.card-legal h3 {
  font-size: 1rem;
  font-weight: 500;
  margin: 18px 0 8px;
}

.card-legal p,
.card-legal li {
  font-size: 15px;
  color: var(--md-on-surface-variant);
  margin-bottom: 10px;
  line-height: 1.6;
}

.card-legal ul {
  padding-left: 1.25rem;
  margin-bottom: 12px;
}

.card-legal table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  margin: 12px 0;
}

.card-legal th,
.card-legal td {
  border: 1px solid var(--md-outline-variant);
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
}

.card-legal th {
  background: var(--md-surface-container-high);
  color: var(--md-on-surface);
  font-weight: 500;
}

.card-legal code {
  font-size: 12px;
  background: var(--md-surface-container-high);
  padding: 2px 5px;
  border-radius: 4px;
}

.card-legal .meta {
  font-size: 13px;
  margin-bottom: 16px;
}

.card-legal .note {
  font-size: 12px;
  margin-top: 16px;
}

.uninstall-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 18px 0;
}

.uninstall-actions--feedback {
  margin-top: 12px;
}

.error-page {
  display: flex;
  justify-content: center;
  padding: 32px 20px 48px;
}

.error-page__card {
  width: 100%;
  max-width: 640px;
  text-align: center;
  background: var(--md-surface-container);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--radius-lg);
  padding: 40px 28px 36px;
  box-shadow: var(--shadow-sm);
}

.error-page__eyebrow {
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--md-primary);
  margin-bottom: 8px;
}

.error-page__code {
  font-size: clamp(3rem, 12vw, 4.5rem);
  font-weight: 700;
  line-height: 1;
  color: var(--md-on-surface);
  margin-bottom: 16px;
}

.error-page__text {
  font-size: 1.125rem;
  color: var(--md-on-surface);
  margin-bottom: 10px;
}

.error-page__lead {
  color: var(--md-on-surface-variant);
  margin-bottom: 28px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.error-page__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

/* ── Mobile / touch ─────────────────────────────────────────────── */
@media (max-width: 639px) {
  html {
    font-size: 16px;
  }

  .page {
    padding: 16px 14px 40px;
    max-width: 100%;
  }

  .page--narrow,
  .page--legal {
    max-width: 100%;
  }

  /* Header */
  .site-header {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    margin-bottom: 20px;
  }

  .site-header__end {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .site-nav {
    justify-content: stretch;
    gap: 4px;
  }

  .site-nav a {
    flex: 1 1 auto;
    text-align: center;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 8px;
  }

  .header-pill {
    text-align: center;
    padding: 8px 12px;
  }

  .lang-select {
    width: 100%;
    min-height: 44px;
    padding: 10px 14px;
  }

  .brand-tagline {
    font-size: 12px;
  }

  /* Hero */
  .hero {
    padding: 20px 16px;
    margin-bottom: 36px;
    gap: 20px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .hero-actions .btn-primary,
  .hero-actions .btn-secondary,
  .hero-actions .btn-bmc {
    width: 100%;
  }

  /* Buttons — full width, touch-friendly */
  .btn-primary,
  .btn-secondary,
  .btn-bmc {
    width: 100%;
    min-height: 48px;
    padding: 14px 20px;
    white-space: normal;
    text-align: center;
    -webkit-tap-highlight-color: transparent;
  }

  .btn-primary:active,
  .btn-secondary:active,
  .btn-bmc:active {
    transform: scale(0.98);
  }

  /* Standalone CTA outside hero-actions */
  #install .btn-primary {
    display: flex;
    width: 100%;
  }

  .uninstall-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .uninstall-actions .btn-primary,
  .uninstall-actions .btn-secondary,
  .uninstall-actions .btn-bmc {
    width: 100%;
  }

  /* Sections */
  .section {
    margin-bottom: 36px;
  }

  .section__title {
    font-size: 1.375rem;
  }

  .quick-open {
    flex-direction: column;
    align-items: stretch;
    padding: 18px 16px;
    gap: 16px;
  }

  .quick-open__keys {
    flex-direction: column;
    gap: 12px;
  }

  .mode-section__header {
    flex-direction: column;
    gap: 10px;
  }

  /* Footer */
  .site-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    text-align: left;
  }

  .site-footer__links {
    flex-direction: column;
    gap: 10px;
    width: 100%;
  }

  .site-footer__links a {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 4px 0;
  }

  /* Legal */
  .card-legal {
    padding: 20px 16px;
  }

  .page--legal .card-legal table {
    font-size: 13px;
  }

  .page--legal .card-legal th,
  .page--legal .card-legal td {
    min-width: 120px;
  }

  /* Mock diff — stack columns on narrow screens */
  .mock-diff {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .mock-panel__modes {
    font-size: 10px;
    line-height: 1.45;
  }

  /* 404 */
  .error-page {
    padding: 32px 12px;
  }

  .error-page__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .error-page__actions .btn-primary,
  .error-page__actions .btn-secondary {
    width: 100%;
    margin-left: 0 !important;
  }
}

@media (min-width: 640px) and (max-width: 879px) {
  .hero-actions {
    gap: 10px;
  }

  .hero-actions .btn-primary,
  .hero-actions .btn-bmc {
    flex: 1 1 calc(50% - 5px);
    min-width: 0;
  }

  .hero-actions .btn-secondary {
    flex: 1 1 100%;
  }
}

/* SEO expansion */
.bullet-list {
  list-style: disc;
  padding-left: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 10px;
  color: var(--md-on-surface-variant);
}

.bullet-list--grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px 24px;
}

.section__actions {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.mode-summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.mode-summary-card {
  background: var(--md-surface-container);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--radius-md);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mode-summary-card__title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--md-on-surface);
}

.mode-summary-card__text {
  font-size: 0.92rem;
  color: var(--md-on-surface-variant);
  flex: 1;
}

.mode-summary-card__link {
  font-size: 0.9rem;
  font-weight: 500;
}

.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--md-outline-variant);
}

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

.compare-table th,
.compare-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--md-outline-variant);
}

.compare-table th {
  background: var(--md-surface-container-high);
  color: var(--md-on-surface);
  font-weight: 600;
}

.compare-table tr:last-child td {
  border-bottom: none;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.gallery-item {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--md-outline-variant);
  background: var(--md-surface-container);
}

.gallery-item img {
  display: block;
  width: 100%;
  height: auto;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.faq-item {
  background: var(--md-surface-container);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--radius-md);
  padding: 4px 16px 12px;
}

.faq-item__q {
  cursor: pointer;
  font-weight: 600;
  color: var(--md-on-surface);
  padding: 12px 0;
  list-style: none;
}

.faq-item__q::-webkit-details-marker {
  display: none;
}

.faq-item__a,
.faq-item__body {
  color: var(--md-on-surface-variant);
  padding-bottom: 8px;
}

.faq-item__body p {
  margin: 0 0 10px;
  line-height: 1.6;
}

.faq-item__body p:last-child {
  margin-bottom: 0;
}

.footer-sitemap {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 24px;
  width: 100%;
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--md-outline-variant);
}

.site-footer--sitemap {
  flex-direction: column;
  align-items: stretch;
}

.footer-sitemap__title {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--md-outline);
  margin-bottom: 10px;
  font-weight: 600;
}

.footer-sitemap__col {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--md-on-surface-variant);
}

.breadcrumb {
  font-size: 0.88rem;
  color: var(--md-on-surface-variant);
  margin-bottom: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.breadcrumb__sep {
  opacity: 0.5;
}

.page-hero {
  padding-top: 8px;
}

.page-hero__title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 12px;
}

.page-hero__lead {
  font-size: 1.05rem;
  color: var(--md-on-surface-variant);
  max-width: 52rem;
  margin-bottom: 20px;
}

.mode-page-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0 16px;
}

.mode-page-other {
  font-size: 0.92rem;
  color: var(--md-on-surface-variant);
  margin-bottom: 20px;
}

.mode-link-list a {
  color: var(--md-primary);
}

/* ── Home landing layout ─────────────────────────────────────────── */
.home-main {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hero--landing {
  margin-bottom: 0;
  background:
    radial-gradient(ellipse 80% 60% at 10% 0%, rgba(8, 66, 160, 0.22), transparent 55%),
    radial-gradient(ellipse 60% 50% at 90% 100%, rgba(208, 188, 255, 0.1), transparent 50%),
    var(--md-surface-container);
}

.home-band {
  padding: 32px 28px;
  border-radius: var(--radius-lg);
  scroll-margin-top: 88px;
}

.home-band--alt {
  background: var(--md-surface-container);
  border: 1px solid var(--md-outline-variant);
}

.home-band--steps {
  background:
    linear-gradient(135deg, rgba(8, 66, 160, 0.14) 0%, rgba(8, 66, 160, 0.04) 100%);
  border: 1px solid rgba(168, 199, 250, 0.18);
}

.home-band--features {
  background: var(--md-surface-container-high);
  border: 1px solid var(--md-outline-variant);
}

.home-band--split {
  padding: 0;
  background: transparent;
  border: none;
}

.home-band--gallery {
  background:
    linear-gradient(180deg, transparent, rgba(255, 180, 171, 0.06));
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--radius-lg);
}

.home-band--highlight {
  background:
    linear-gradient(135deg, rgba(168, 199, 250, 0.1), rgba(109, 213, 140, 0.08));
  border: 1px solid rgba(168, 199, 250, 0.2);
}

.home-panel {
  max-width: 100%;
}

.home-panel--inline {
  padding: 0;
}

.home-panel--accent {
  padding: 28px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--md-outline-variant);
  background: var(--md-surface-container);
  height: 100%;
}

.home-panel--accent-blue {
  border-color: var(--mode-compare-border);
  background:
    linear-gradient(160deg, var(--mode-compare-container), var(--md-surface-container) 45%);
}

.home-panel--accent-purple {
  border-color: var(--mode-development-border);
  background:
    linear-gradient(160deg, var(--mode-development-container), var(--md-surface-container) 45%);
}

.home-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 960px) {
  .home-split {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: stretch;
  }
}

.section-tag {
  display: inline-flex;
  align-items: center;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  margin-bottom: 10px;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--md-outline-variant);
  color: var(--md-on-surface-variant);
  background: var(--md-surface-container-high);
}

.section-tag--primary {
  color: var(--mode-compare);
  border-color: var(--mode-compare-border);
  background: var(--mode-compare-container);
}

.section-tag--compare {
  color: var(--mode-compare);
  border-color: var(--mode-compare-border);
  background: var(--mode-compare-container);
}

.section-tag--development {
  color: var(--mode-development);
  border-color: var(--mode-development-border);
  background: var(--mode-development-container);
}

.section-tag--analysis {
  color: var(--mode-analysis);
  border-color: var(--mode-analysis-border);
  background: var(--mode-analysis-container);
}

.section-tag--monitoring {
  color: var(--mode-monitoring);
  border-color: var(--mode-monitoring-border);
  background: var(--mode-monitoring-container);
}

.section-tag--manifests {
  color: var(--mode-manifests);
  border-color: var(--mode-manifests-border);
  background: var(--mode-manifests-container);
}

.section-tag--on-dark {
  color: var(--md-on-primary-container);
  border-color: rgba(211, 227, 253, 0.35);
  background: rgba(255, 255, 255, 0.08);
}

.section__head--center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
  max-width: 40rem;
}

.section__head--center .section__lead {
  margin-left: auto;
  margin-right: auto;
}

.section__title--sm {
  font-size: 1.35rem;
}

.section__actions--center {
  justify-content: center;
}

.steps-grid--home .step-card {
  transition: transform 0.15s, border-color 0.15s, box-shadow 0.15s;
}

.steps-grid--home .step-card:hover {
  transform: translateY(-2px);
  border-color: var(--mode-compare-border);
  box-shadow: var(--md-elevation-2);
}

.step-card--numbered {
  border-top: 3px solid var(--mode-compare);
}

.feature-tile-grid {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin: 18px 0 0;
  padding: 0;
}

@media (min-width: 640px) {
  .feature-tile-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.feature-tile-grid--compact {
  margin-top: 14px;
}

.feature-tile {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--md-outline-variant);
  background: rgba(19, 19, 20, 0.35);
  color: var(--md-on-surface-variant);
  font-size: 0.94rem;
  line-height: 1.55;
}

.feature-tile::before {
  content: "";
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  margin-top: 7px;
  border-radius: 50%;
  background: var(--mode-compare);
  box-shadow: 0 0 0 3px var(--mode-compare-container);
}

.feature-tile--purple::before {
  background: var(--mode-development);
  box-shadow: 0 0 0 3px var(--mode-development-container);
}

.feature-tile__text {
  flex: 1;
}

.use-case-card {
  position: relative;
  overflow: hidden;
}

.use-case-card--compare {
  border-top: 3px solid var(--mode-compare);
}

.use-case-card--development {
  border-top: 3px solid var(--mode-development);
}

.use-case-card--analysis {
  border-top: 3px solid var(--mode-analysis);
}

.use-case-card__badge {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  margin-bottom: 14px;
  border: 1px solid var(--md-outline-variant);
  background: var(--md-surface-container-high);
  color: var(--md-primary);
}

.use-case-card--compare .use-case-card__badge {
  color: var(--mode-compare);
  border-color: var(--mode-compare-border);
  background: var(--mode-compare-container);
}

.use-case-card--development .use-case-card__badge {
  color: var(--mode-development);
  border-color: var(--mode-development-border);
  background: var(--mode-development-container);
}

.use-case-card--analysis .use-case-card__badge {
  color: var(--mode-analysis);
  border-color: var(--mode-analysis-border);
  background: var(--mode-analysis-container);
}

.use-case-card__badge svg {
  width: 22px;
  height: 22px;
}

.mode-summary-grid--home {
  gap: 14px;
}

.mode-summary-card--compare {
  border-top: 3px solid var(--mode-compare);
}

.mode-summary-card--development {
  border-top: 3px solid var(--mode-development);
}

.mode-summary-card--analysis {
  border-top: 3px solid var(--mode-analysis);
}

.mode-summary-card--monitoring {
  border-top: 3px solid var(--mode-monitoring);
}

.mode-summary-card--manifests {
  border-top: 3px solid var(--mode-manifests);
}

.mode-summary-card--home,
.mode-summary-grid--home .mode-summary-card {
  transition: transform 0.15s, box-shadow 0.15s;
}

.mode-summary-grid--home .mode-summary-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--md-elevation-2);
}

.table-wrap--home {
  background: var(--md-surface-container);
  box-shadow: var(--md-elevation-1);
}

.compare-table--home .compare-table__highlight {
  background: var(--mode-compare-container);
  color: var(--mode-compare);
  font-weight: 600;
}

.compare-table--home th.compare-table__highlight {
  color: var(--mode-compare);
}

.gallery-grid--home {
  gap: 18px;
}

.gallery-item--home {
  transition: transform 0.15s, box-shadow 0.15s;
}

.gallery-item--home:hover {
  transform: translateY(-3px);
  box-shadow: var(--md-elevation-2);
}

.quick-open--home {
  width: 100%;
  background: transparent;
  border: none;
  box-shadow: none;
  padding: 8px 4px;
  justify-content: space-between;
}

.quick-open__copy {
  flex: 1;
  min-width: 220px;
}

.kbd--lg {
  font-size: 14px;
  padding: 10px 16px;
}

.faq-list--home {
  max-width: 52rem;
  margin: 0 auto;
}

.home-cta {
  margin-top: 8px;
  padding: 40px 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--mode-compare-border);
  background:
    radial-gradient(ellipse 70% 80% at 50% 120%, rgba(168, 199, 250, 0.25), transparent 60%),
    linear-gradient(145deg, var(--md-primary-container), #0a3580 85%);
  box-shadow: var(--md-elevation-2);
  scroll-margin-top: 88px;
}

.home-cta__inner {
  max-width: 36rem;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.home-cta__title {
  font-size: clamp(1.5rem, 3vw, 1.85rem);
  font-weight: 600;
  color: var(--md-on-primary-container);
  line-height: 1.25;
}

.home-cta__lead {
  color: rgba(211, 227, 253, 0.88);
  font-size: 1.05rem;
  line-height: 1.6;
  max-width: 32rem;
}

.install-list--home {
  text-align: left;
  width: 100%;
  max-width: 28rem;
  margin-bottom: 8px;
}

.install-list--home li {
  color: rgba(211, 227, 253, 0.9);
}

.install-list--home li::before {
  background: rgba(255, 255, 255, 0.15);
  color: var(--md-on-primary-container);
}

.btn-primary--lg {
  padding: 14px 32px;
  font-size: 16px;
}

@media (max-width: 639px) {
  .home-band {
    padding: 24px 18px;
  }

  .home-panel--accent {
    padding: 22px 18px;
  }

  .quick-open--home {
    flex-direction: column;
    align-items: stretch;
  }

  .quick-open__keys {
    width: 100%;
  }

  .home-cta {
    padding: 32px 20px;
  }
}