:root {
  --bg: #dfe2dc;
  --surface: #d0d5cd;
  --surface-2: #c1c8bd;
  --surface-moss: #cad6c8;
  --ink: #181c18;
  --muted: #373e37;
  --accent: #255220;
  --accent-hover: #1b3d17;
  --accent-soft: #b8ccb5;
  --accent-ink: #f6faf5;
  --amber-soft: #ccd1c4;
  --dark: #151915;
  --dark-surface: #202620;
  --dark-ink: #e8ede7;
  --dark-muted: #b9c2b8;
  --ui-line: rgba(24, 28, 24, 0.18);
  --font-sans: "Work Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --step-3: clamp(2.2rem, 3.35vw, 2.85rem);
  --step-2: clamp(1.42rem, 2.1vw, 1.88rem);
  --step-1: clamp(1.12rem, 1.35vw, 1.26rem);
  --step-0: 1rem;
  --step-s: 0.875rem;
  --wrap: 1220px;
  --gutter: clamp(1.25rem, 3.8vw, 3rem);
  --radius: 8px;
}

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

html {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.62;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  overflow-x: hidden;
}

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

a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 0.18em;
  text-decoration-thickness: 1.5px;
  transition: color 160ms ease, opacity 160ms ease;
}

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

a:focus-visible,
button:focus-visible,
select:focus-visible,
input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

h1, h2, h3, h4 {
  margin: 0 0 0.62em;
  font-family: var(--font-sans);
  font-weight: 500;
  color: inherit;
  text-wrap: balance;
}

h1 {
  font-size: var(--step-3);
  line-height: 1.08;
  letter-spacing: -0.026em;
  max-width: 21ch;
}

h2 {
  font-size: var(--step-2);
  line-height: 1.14;
  letter-spacing: -0.018em;
  max-width: 26ch;
}

h3 {
  font-size: var(--step-1);
  line-height: 1.24;
  letter-spacing: -0.012em;
  max-width: 32ch;
}

p, ul, ol, dl, table, pre, blockquote {
  margin: 0 0 1.05rem;
}

p, li {
  max-width: 65ch;
  overflow-wrap: anywhere;
}

p:last-child, ul:last-child, ol:last-child {
  margin-bottom: 0;
}

code, pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: var(--step-s);
}

p code, li code, td code {
  background: var(--surface);
  color: var(--ink);
  padding: 0.12em 0.36em;
  border-radius: 4px;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.band-stone p code,
.band-stone li code,
.band-stone td code {
  background: var(--bg);
}

.band-dark code {
  background: rgba(232, 237, 231, 0.13);
  color: var(--dark-ink);
}

pre {
  max-width: 100%;
  background: var(--dark);
  color: var(--dark-ink);
  padding: 0.95rem 1.1rem;
  border-radius: var(--radius);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: break-word;
  line-height: 1.52;
}

pre code {
  background: transparent;
  color: inherit;
  padding: 0;
  white-space: inherit;
}

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0.5rem;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 0.55rem 1rem;
  border-radius: 6px;
  z-index: 100;
  text-decoration: none;
}

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

/* Header */
.site-header {
  background: var(--bg);
  padding-block: 1.05rem;
}

.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.85rem 1.25rem;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--ink);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--step-1);
  letter-spacing: -0.018em;
  flex-shrink: 0;
}

.brand-mark {
  display: inline-grid;
  grid-template-columns: repeat(3, 7px);
  gap: 3px;
  align-items: end;
  height: 18px;
}

.brand-mark i {
  display: block;
  width: 7px;
  border-radius: 2px;
  background: var(--accent);
}

.brand-mark i:nth-child(1) { height: 12px; }
.brand-mark i:nth-child(2) { height: 18px; }
.brand-mark i:nth-child(3) { height: 14px; background: var(--ink); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.35rem 1.05rem;
  flex-wrap: wrap;
}

.nav-links a:not(.nav-cta) {
  color: var(--muted);
  text-decoration: none;
  font-size: var(--step-s);
  padding-block: 0.22rem;
}

.nav-links a:not(.nav-cta):hover,
.nav-links a:not(.nav-cta)[aria-current="page"] {
  color: var(--ink);
  font-weight: 500;
}

.nav-links a.nav-cta,
.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: var(--accent-ink);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--step-s);
  padding: 0.54rem 0.98rem;
  border-radius: 6px;
  flex-shrink: 0;
  transition: transform 150ms ease, background-color 150ms ease;
}

.nav-links a.nav-cta:hover,
.nav-cta:hover {
  background: var(--accent-hover);
  color: var(--accent-ink);
  transform: translateY(-1px);
}

/* Breadcrumbs */
.crumb-nav {
  padding-block: 0.35rem 0;
  font-size: var(--step-s);
  color: var(--muted);
}

.crumb-nav ol {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.crumb-nav li + li::before {
  content: "/";
  margin-right: 0.45rem;
  color: var(--muted);
}

.crumb-nav a {
  color: var(--muted);
  text-decoration: none;
}

.crumb-nav a:hover {
  color: var(--ink);
  text-decoration: underline;
}

/* Hero */
.hero {
  padding-block: clamp(2.2rem, 5vw, 4.4rem) clamp(2.6rem, 5.2vw, 4.6rem);
  overflow-x: clip;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: clamp(1.8rem, 4vw, 3.4rem);
  align-items: center;
}

.hero-grid > *,
.split-grid > *,
.picker-grid > *,
.inspector-outputs > *,
.footer-grid > * {
  min-width: 0;
}

.lead {
  font-size: var(--step-1);
  line-height: 1.5;
  color: var(--ink);
  max-width: 54ch;
  margin-bottom: 1.5rem;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  margin-bottom: 1.65rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.7rem 1.2rem;
  border-radius: 6px;
  font-family: var(--font-sans);
  font-size: var(--step-0);
  font-weight: 500;
  text-decoration: none;
  border: 0;
  cursor: pointer;
  transition: transform 150ms ease, background-color 150ms ease;
}

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

.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: var(--accent-ink);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--surface);
  color: var(--ink);
}

.btn-secondary:hover {
  background: var(--surface-2);
  color: var(--ink);
  transform: translateY(-1px);
}

.fact-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
  background: var(--surface);
  padding: 1rem 1.15rem;
  border-radius: var(--radius);
  font-variant-numeric: tabular-nums;
}

.fact-strip strong {
  display: block;
  font-size: var(--step-1);
  font-weight: 500;
  color: var(--ink);
}

.fact-strip span {
  display: block;
  font-size: var(--step-s);
  color: var(--muted);
}

.hero-visual {
  margin: 0;
  background: var(--surface);
  padding: 1rem;
  border-radius: var(--radius);
}

.hero-visual img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.photo-caption {
  margin-top: 0.65rem;
  font-size: var(--step-s);
  color: var(--muted);
  max-width: 60ch;
}

/* Sections & Bands */
.section {
  padding-block: clamp(3.2rem, 6.2vw, 5.6rem);
  overflow-x: clip;
}

.band-stone {
  background: var(--surface);
}

.band-moss {
  background: var(--surface-moss);
}

.band-dark {
  background: var(--dark);
  color: var(--dark-ink);
}

.band-dark .muted,
.band-dark .section-intro,
.band-dark .photo-caption {
  color: var(--dark-muted);
}

.band-dark a:not(.btn) {
  color: #a8d8a2;
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
  gap: 1rem 2.5rem;
  align-items: end;
  margin-bottom: clamp(1.7rem, 3.4vw, 2.6rem);
}

.section-intro {
  color: var(--ink);
  font-size: var(--step-0);
  max-width: 56ch;
  margin: 0;
}

.muted {
  color: var(--muted);
}

/* Open Editorial Columns */
.open-three {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.75rem 2.25rem;
}

.open-two {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.75rem 2.6rem;
}

.open-col {
  min-width: 0;
}

.piece-pill {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--ink);
  font-size: var(--step-s);
  font-weight: 500;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  margin-bottom: 0.7rem;
}

.band-dark .piece-pill {
  background: var(--dark-surface);
  color: var(--dark-ink);
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.5rem 2rem;
  font-variant-numeric: tabular-nums;
}

.stat-num {
  display: block;
  font-size: var(--step-2);
  font-weight: 500;
  line-height: 1.1;
  margin-bottom: 0.35rem;
}

/* Split Layouts */
.split-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(1.8rem, 4vw, 3.4rem);
  align-items: start;
}

.split-grid.reverse > :first-child {
  order: 2;
}

.split-grid.reverse > :last-child {
  order: 1;
}

.media-frame {
  margin: 0;
  background: var(--surface);
  padding: 0.95rem;
  border-radius: var(--radius);
}

.band-stone .media-frame,
.band-moss .media-frame {
  background: var(--bg);
}

.band-dark .media-frame {
  background: var(--dark-surface);
}

.media-frame img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.photo-duo {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.check-list {
  padding-left: 1.2rem;
}

.check-list li {
  margin-bottom: 0.55rem;
}

/* Interactive App Surfaces ([data-ui]) */
[data-ui].ui-shell {
  max-width: 100%;
  background: var(--bg);
  color: var(--ink);
  border: 1px solid var(--ui-line);
  border-radius: var(--radius);
  padding: clamp(1.1rem, 2.4vw, 1.7rem);
  font-variant-numeric: tabular-nums;
}

.band-stone [data-ui].ui-shell,
.band-moss [data-ui].ui-shell {
  background: var(--bg);
}

.band-bg-ui [data-ui].ui-shell {
  background: var(--surface);
}

.ui-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

[data-ui] .ui-tab {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--ui-line);
  border-radius: 6px;
  padding: 0.5rem 0.9rem;
  font-family: var(--font-sans);
  font-size: var(--step-0);
  font-weight: 500;
  cursor: pointer;
  transition: background-color 140ms ease, color 140ms ease;
}

[data-ui] .ui-tab[aria-selected="true"],
[data-ui] .ui-tab.is-active {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}

.picker-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 1.4rem;
  align-items: start;
}

.kv-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem 1.1rem;
  margin-bottom: 1rem;
}

.kv-item {
  min-width: 0;
}

.kv-item span {
  display: block;
  font-size: var(--step-s);
  color: var(--muted);
}

.kv-item strong {
  display: block;
  font-size: var(--step-0);
  font-weight: 500;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.hash-box {
  max-width: 100%;
  background: var(--dark);
  color: var(--dark-ink);
  padding: 0.75rem 0.95rem;
  border-radius: 6px;
  font-size: var(--step-s);
  overflow-wrap: anywhere;
  word-break: break-all;
  margin-bottom: 0.9rem;
}

.inspector-controls {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.85rem;
  margin-bottom: 1.25rem;
}

.field-group {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.field-group label {
  font-size: var(--step-s);
  font-weight: 500;
  color: var(--muted);
}

.field-group select,
.field-group input {
  width: 100%;
  max-width: 100%;
  padding: 0.52rem 0.68rem;
  border-radius: 6px;
  border: 1px solid var(--ui-line);
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--step-0);
}

.inspector-outputs {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 1.2rem;
}

.output-pane {
  min-width: 0;
  background: var(--surface);
  padding: 1rem;
  border-radius: 6px;
}

.band-bg-ui .output-pane {
  background: var(--bg);
}

.output-pane pre {
  margin: 0.55rem 0 0.75rem;
  max-height: 240px;
  overflow-y: auto;
}

[data-ui] .drop-zone {
  border: 1px dashed var(--accent);
  background: var(--surface-moss);
  color: var(--ink);
  border-radius: 6px;
  padding: 1.15rem;
  text-align: center;
  cursor: pointer;
  margin-bottom: 0.95rem;
  transition: background-color 150ms ease;
}

[data-ui] .drop-zone.is-dragover {
  background: var(--accent-soft);
}

.checker-row {
  display: flex;
  gap: 0.65rem;
  flex-wrap: wrap;
  margin-bottom: 0.85rem;
}

.checker-row input[type="text"] {
  flex: 1 1 240px;
  min-width: 0;
  max-width: 100%;
  padding: 0.58rem 0.78rem;
  border-radius: 6px;
  border: 1px solid var(--ui-line);
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-variant-numeric: tabular-nums;
  font-size: var(--step-s);
}

.checker-status {
  padding: 0.8rem 1rem;
  border-radius: 6px;
  background: var(--surface);
  font-size: var(--step-s);
  overflow-wrap: anywhere;
}

.checker-status[data-state="match"] {
  background: var(--accent-soft);
  color: var(--ink);
}

.checker-status[data-state="miss"] {
  background: var(--amber-soft);
  color: var(--ink);
}

/* Tables */
.table-wrap {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
}

.data-table {
  width: 100%;
  table-layout: fixed;
  border-collapse: collapse;
  font-size: var(--step-s);
  font-variant-numeric: tabular-nums;
}

.data-table th,
.data-table td {
  text-align: left;
  padding: 0.72rem 0.8rem;
  border-bottom: 1px solid var(--ui-line);
  vertical-align: top;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.band-dark .data-table th,
.band-dark .data-table td {
  border-bottom-color: rgba(232, 237, 231, 0.16);
}

.data-table th {
  font-weight: 500;
  color: var(--ink);
}

.band-dark .data-table th {
  color: var(--dark-ink);
}

/* Verified Controller Gear Cards */
.pad-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.15rem;
}

.pad-card {
  min-width: 0;
  background: var(--surface);
  padding: 1.2rem;
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 0.9rem;
}

.band-stone .pad-card {
  background: var(--bg);
}

.pad-card h3 {
  font-size: var(--step-0);
  margin-bottom: 0.4rem;
}

.pad-card p {
  font-size: var(--step-s);
  color: var(--ink);
}

.disclosure-note {
  margin-top: 1rem;
  font-size: var(--step-s);
  color: var(--muted);
}

/* FAQ Open Grid */
.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.65rem 2.6rem;
}

.faq-item {
  min-width: 0;
}

.faq-item h3 {
  margin-bottom: 0.45rem;
}

.faq-item p {
  color: var(--ink);
}

.band-dark .faq-item p {
  color: var(--dark-ink);
}

/* Adsterra Static Slots */
.ad-slot {
  max-width: var(--wrap);
  margin: 0 auto;
  padding-inline: var(--gutter);
  display: flex;
  justify-content: center;
  align-items: center;
}

.ad-slot:not(:empty) {
  padding-block: 0.85rem;
}

.ad-d {
  display: block;
}

.ad-m {
  display: none;
}

.ad-n,
.ad-native {
  display: block;
  width: 100%;
  min-height: 0;
}

/* Footer */
.site-footer {
  background: var(--dark);
  color: var(--dark-ink);
  padding-block: clamp(3rem, 6vw, 4.6rem);
  font-size: var(--step-s);
  overflow-x: clip;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) repeat(3, minmax(0, 0.9fr));
  gap: 1.8rem 2.2rem;
  margin-bottom: 2.2rem;
}

.site-footer h3 {
  font-size: var(--step-0);
  color: var(--dark-ink);
  margin-bottom: 0.65rem;
}

.site-footer p,
.site-footer li {
  color: var(--dark-ink);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.42rem;
}

.site-footer a {
  color: var(--dark-ink);
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
  color: #a8d8a2;
}

.footer-credits {
  background: var(--dark-surface);
  padding: 1rem 1.2rem;
  border-radius: var(--radius);
  color: var(--dark-muted);
  line-height: 1.58;
}

.footer-credits p {
  max-width: none;
}

.footer-credits a {
  color: #a8d8a2;
  text-decoration: underline;
}

/* Motion Layer (transform + subtle opacity, never invisible, reduced-motion safe) */
@media (prefers-reduced-motion: no-preference) {
  .reveal-ready {
    opacity: 0.88;
    transform: translateY(16px);
    transition: opacity 260ms cubic-bezier(0.22, 1, 0.36, 1),
                transform 260ms cubic-bezier(0.22, 1, 0.36, 1);
  }

  .reveal-ready.is-in {
    opacity: 1;
    transform: translateY(0);
  }

  .hero-visual img,
  .media-frame img {
    animation: stoneDrift 14s ease-in-out infinite alternate;
  }

  @keyframes stoneDrift {
    from { transform: scale(1) translateY(0); }
    to { transform: scale(1.02) translateY(-3px); }
  }
}

/* Responsive Breakpoints */
@media (max-width: 980px) {
  .hero-grid,
  .section-head,
  .split-grid,
  .picker-grid,
  .inspector-outputs,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .split-grid.reverse > :first-child,
  .split-grid.reverse > :last-child {
    order: unset;
  }

  .open-three,
  .pad-grid,
  .inspector-controls,
  .stat-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 740px) {
  h1 {
    font-size: 1.85rem;
  }

  .ad-d {
    display: none;
  }

  .ad-m {
    display: block;
  }

  .open-three,
  .open-two,
  .pad-grid,
  .faq-grid,
  .photo-duo,
  .fact-strip,
  .kv-list,
  .stat-row {
    grid-template-columns: 1fr;
  }

  .inspector-controls {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.6rem;
    margin-bottom: 0.9rem;
  }

  .output-pane pre {
    max-height: 150px;
    padding: 0.7rem 0.8rem;
  }

  .data-table,
  .data-table thead,
  .data-table tbody,
  .data-table tr,
  .data-table td {
    display: block;
    width: 100%;
  }

  .data-table thead {
    position: absolute;
    left: 0;
    width: 1px;
    height: 1px; clip: rect(0, 0, 0, 0);
    overflow: hidden;
  }

  .data-table tr {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--ui-line);
  }

  .data-table td {
    border: 0;
    padding: 0.22rem 0;
  }

  .data-table td[data-label]::before {
    content: attr(data-label) ": ";
    font-weight: 500;
    color: var(--ink);
  }

  .band-dark .data-table td[data-label]::before {
    color: var(--dark-ink);
  }
}