:root {
  --canvas: #111113;
  --surface: #1c1c20;
  --surface-raised: #232329;
  --surface-soft: #29282e;
  --ink: #f4f3f7;
  --muted: #a2a1ac;
  --subtle: #787784;
  --border: rgba(244, 243, 247, 0.08);
  --border-strong: rgba(244, 243, 247, 0.14);
  --top-edge: rgba(255, 255, 255, 0.07);

  --violet: #b8a1fa;
  --violet-ink: #1e162b;
  --teal: #87ddcf;
  --teal-ink: #122421;
  --stream: #9bd6ff;
  --stream-ink: #14222e;
  --gold: #edc990;
  --gold-ink: #271f12;
  --rose: #f0a7c6;
  --rose-ink: #2a1720;

  --bus-game: #b7a3ff;
  --bus-chat: #7be1d1;
  --bus-media: #a1baff;
  --bus-aux: #edc990;
  --bus-mic: #f0a7c6;

  --font-sans: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 22px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-bubble: 0 18px 42px rgba(0, 0, 0, 0.55), 0 2px 8px rgba(0, 0, 0, 0.35);
  --shadow-frame: 0 28px 70px rgba(0, 0, 0, 0.52), 0 4px 16px rgba(0, 0, 0, 0.32);
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
  background-color: var(--canvas);
  color: var(--ink);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
}

body {
  margin: 0;
  background-color: var(--canvas);
  background-image:
    radial-gradient(ellipse 75% 45% at 50% -10%, rgba(184, 161, 250, 0.11), transparent 70%),
    radial-gradient(ellipse 55% 40% at 85% 18%, rgba(135, 221, 207, 0.06), transparent 65%);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  user-select: none;
  -webkit-user-select: none;
}

::selection {
  background: rgba(184, 161, 250, 0.28);
  color: var(--ink);
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--canvas);
}

::-webkit-scrollbar-thumb {
  background: #2c2b33;
  border-radius: 999px;
  border: 2px solid var(--canvas);
}

::-webkit-scrollbar-thumb:hover {
  background: #3d3b46;
}

:focus-visible {
  outline: 2px solid var(--violet);
  outline-offset: 3px;
}

a {
  color: inherit;
  text-decoration: none;
  text-underline-offset: 4px;
}

img {
  display: block;
  max-width: 100%;
  -webkit-user-drag: none;
}

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
  word-break: break-word;
}

p .mono,
td .mono {
  font-size: 0.9em;
}

.container {
  width: min(1220px, calc(100% - 40px));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(17, 17, 19, 0.84);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 68px;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-lockup {
  height: 28px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-links a {
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  transition: color 0.18s var(--ease-out), background-color 0.18s var(--ease-out);
}

.nav-links a:hover {
  color: var(--ink);
  background: rgba(244, 243, 247, 0.06);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 10px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
  border: 1px solid transparent;
  cursor: pointer;
  transition:
    transform 0.2s var(--ease-out),
    background-color 0.2s var(--ease-out),
    border-color 0.2s var(--ease-out),
    color 0.2s var(--ease-out);
}

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

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

.btn-primary:hover {
  background: #c7b4fc;
}

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

.btn-secondary:hover {
  background: #33313a;
  border-color: rgba(244, 243, 247, 0.22);
}

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border-color: var(--border);
  padding: 8px 13px;
}

.btn-ghost:hover {
  color: var(--ink);
  background: rgba(244, 243, 247, 0.05);
}

.btn-lg {
  padding: 13px 22px;
  font-size: 15px;
  border-radius: 12px;
}

/* Hero */
.hero {
  padding: 64px 0 48px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1.15fr);
  gap: 44px;
  align-items: center;
}

.hero-title {
  margin: 0 0 18px;
  font-size: clamp(2.35rem, 4.3vw, 3.65rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.04em;
  text-wrap: balance;
}

.hero-copy {
  margin: 0 0 28px;
  max-width: 54ch;
  font-size: 17px;
  line-height: 1.65;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}

.hero-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--muted);
}

.spec-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.spec-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--teal);
  flex-shrink: 0;
}

.spec-dot.violet { background: var(--violet); }
.spec-dot.stream { background: var(--stream); }
.spec-dot.gold { background: var(--gold); }

.hero-visual {
  position: relative;
}

.media-frame {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  padding: 10px;
  box-shadow: var(--shadow-frame);
  box-shadow: inset 0 1px 0 var(--top-edge), var(--shadow-frame);
}

.media-frame img {
  width: 100%;
  border-radius: 14px;
}

.media-caption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 6px 4px;
  font-size: 12.5px;
  color: var(--muted);
}

/* Bus strip */
.bus-strip {
  padding: 18px 0 54px;
}

.bus-row {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.bus-chip {
  min-width: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px 16px 14px;
  box-shadow: inset 0 1px 0 var(--top-edge);
  overflow-wrap: anywhere;
}

.bus-chip-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}

.bus-swatch {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  flex-shrink: 0;
}

.bus-chip strong {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.bus-chip p {
  margin: 0;
  font-size: 13px;
  line-height: 1.5;
  color: var(--muted);
}

/* Section base */
.section {
  padding: 72px 0;
  border-top: 1px solid var(--border);
}

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.section-title {
  margin: 0 0 10px;
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.section-lead {
  margin: 0;
  max-width: 64ch;
  font-size: 16px;
  color: var(--muted);
}

/* Interactive Annotated Tour */
.tour-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.tour-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tour-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 15px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  font-family: var(--font-sans);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.18s var(--ease-out);
}

.tour-tab:hover {
  color: var(--ink);
  border-color: var(--border-strong);
}

.tour-tab[aria-selected="true"] {
  background: var(--surface-soft);
  color: var(--ink);
  border-color: rgba(184, 161, 250, 0.45);
  box-shadow: inset 0 1px 0 var(--top-edge);
}

.tour-tab-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.tour-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.toggle-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 13px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.18s var(--ease-out);
}

.toggle-pill[aria-pressed="true"] {
  background: rgba(184, 161, 250, 0.16);
  color: var(--ink);
  border-color: rgba(184, 161, 250, 0.45);
}

.tour-stage {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  padding: 12px;
  box-shadow: inset 0 1px 0 var(--top-edge), var(--shadow-frame);
}

.stage-canvas {
  position: relative;
  width: fit-content;
  max-width: 100%;
  margin-inline: auto;
  border-radius: 14px;
  overflow: visible;
  background: #0d0d0f;
}

.stage-image {
  width: 100%;
  height: auto;
  border-radius: 14px;
  display: block;
}

.stage-image.portrait-frame {
  max-height: 620px;
  width: auto;
  margin-inline: auto;
}

.stage-scrim {
  position: absolute;
  inset: 0;
  border-radius: 14px;
  background: rgba(10, 10, 12, 0.22);
  pointer-events: none;
  transition: opacity 0.25s var(--ease-out);
}

/* Hotspot Pins & Text Bubbles */
.hotspot {
  position: absolute;
  transform: translate(-50%, -50%);
  z-index: 10;
}

.hotspot.is-active {
  z-index: 25;
}

.hotspot-pin {
  position: relative;
  width: 30px;
  height: 30px;
  border-radius: 999px;
  border: 2px solid var(--canvas);
  background: var(--pin-color, var(--violet));
  color: #121216;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  display: grid;
  place-items: center;
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.55);
  transition: transform 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out);
}

.hotspot-pin::after {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 999px;
  border: 1.5px solid var(--pin-color, var(--violet));
  opacity: 0.45;
  animation: pulse-ring 2.4s var(--ease-out) infinite;
}

.hotspot.is-active .hotspot-pin {
  transform: scale(1.16);
  box-shadow: 0 0 0 4px rgba(244, 243, 247, 0.22), 0 10px 24px rgba(0, 0, 0, 0.65);
}

.hotspot.is-active .hotspot-pin::after {
  opacity: 0;
  animation: none;
}

@keyframes pulse-ring {
  0% { transform: scale(0.88); opacity: 0.65; }
  75% { transform: scale(1.38); opacity: 0; }
  100% { transform: scale(1.38); opacity: 0; }
}

/* Speech Text Bubble */
.bubble-card {
  display: none;
  position: absolute;
  width: 278px;
  max-width: calc(100vw - 48px);
  padding: 13px 15px;
  border-radius: 14px;
  background: rgba(28, 28, 34, 0.96);
  border: 1px solid var(--pin-color, var(--violet));
  box-shadow: var(--shadow-bubble);
  color: var(--ink);
  text-align: left;
  pointer-events: auto;
  overflow-wrap: anywhere;
}

.hotspot.is-active .bubble-card,
.stage-canvas.show-all .bubble-card {
  display: block;
}

/* Bubble placement directions */
.bubble-card[data-align="right"] {
  left: calc(100% + 14px);
  top: 50%;
  transform: translateY(-50%) scale(0.97);
}
.hotspot.is-active .bubble-card[data-align="right"] {
  transform: translateY(-50%) scale(1);
}

.bubble-card[data-align="left"] {
  right: calc(100% + 14px);
  top: 50%;
  transform: translateY(-50%) scale(0.97);
}
.hotspot.is-active .bubble-card[data-align="left"] {
  transform: translateY(-50%) scale(1);
}

.bubble-card[data-align="top"] {
  bottom: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%) scale(0.97);
}
.hotspot.is-active .bubble-card[data-align="top"] {
  transform: translateX(-50%) scale(1);
}

.bubble-card[data-align="bottom"] {
  top: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%) scale(0.97);
}
.hotspot.is-active .bubble-card[data-align="bottom"] {
  transform: translateX(-50%) scale(1);
}

/* Compact "Show All" pill bubbles */
.stage-canvas.show-all .bubble-card {
  opacity: 1;
  visibility: visible;
  width: 215px;
  padding: 9px 11px;
  border-color: rgba(244, 243, 247, 0.2);
}

.stage-canvas.show-all .hotspot.is-active .bubble-card {
  width: 268px;
  padding: 13px 15px;
  border-color: var(--pin-color, var(--violet));
}

.stage-canvas.show-all .bubble-card .bubble-body {
  display: none;
}

.stage-canvas.show-all .hotspot.is-active .bubble-card .bubble-body {
  display: block;
}

.bubble-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  color: var(--pin-color, var(--violet));
  margin-bottom: 3px;
}

.bubble-title {
  margin: 0 0 4px;
  font-size: 13.5px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.015em;
}

.bubble-body {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--muted);
}

/* Tour Bottom Index + Mobile Dock */
.tour-dock {
  margin-top: 16px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 16px 18px;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.dock-active-title {
  margin: 0 0 4px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.dock-active-desc {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
}

.dock-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.dock-counter {
  font-size: 13px;
  color: var(--muted);
  padding: 0 6px;
}

.tour-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.tour-list-btn {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  text-align: left;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all 0.18s var(--ease-out);
}

.tour-list-btn:hover {
  color: var(--ink);
  border-color: var(--border-strong);
}

.tour-list-btn[aria-current="true"] {
  background: var(--surface-soft);
  color: var(--ink);
  border-color: rgba(184, 161, 250, 0.45);
}

.tour-list-num {
  width: 22px;
  height: 22px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: #121216;
}

.tour-list-label {
  font-size: 13.5px;
  font-weight: 600;
  line-height: 1.35;
}

/* Signal Flow Architecture */
.flow-diagram {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.flow-node {
  position: relative;
  min-width: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: inset 0 1px 0 var(--top-edge);
  overflow-wrap: anywhere;
}

.flow-node h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.flow-node p {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
}

.flow-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  margin-bottom: 12px;
  background: rgba(184, 161, 250, 0.14);
  color: var(--violet);
}

.flow-badge.teal {
  background: rgba(135, 221, 207, 0.14);
  color: var(--teal);
}

.flow-badge.stream {
  background: rgba(155, 214, 255, 0.14);
  color: var(--stream);
}

.flow-badge.gold {
  background: rgba(237, 201, 144, 0.14);
  color: var(--gold);
}

/* Detailed Feature Splits (Alternating Editorial Layout, not same-size card grid) */
.feature-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: 44px;
  align-items: start;
}

.feature-split + .feature-split {
  margin-top: 64px;
  padding-top: 64px;
  border-top: 1px solid var(--border);
}

.feature-list {
  display: grid;
  gap: 16px;
  margin-top: 22px;
}

.feature-item {
  min-width: 0;
  padding: 16px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow-wrap: anywhere;
}

.feature-item h3 {
  margin: 0 0 4px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.015em;
}

.feature-item p {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
}

/* Specs & Everyday Grid */
.everyday-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 28px;
  align-items: start;
}

.spec-table {
  width: 100%;
  table-layout: fixed;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.spec-table th,
.spec-table td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  vertical-align: top;
}

.spec-table tr:last-child th,
.spec-table tr:last-child td {
  border-bottom: none;
}

.spec-table th {
  width: 34%;
  font-weight: 600;
  color: var(--ink);
}

.spec-table td {
  color: var(--muted);
  overflow-wrap: anywhere;
}

.callout-panel {
  min-width: 0;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: inset 0 1px 0 var(--top-edge);
  overflow-wrap: anywhere;
}

.callout-panel h3 {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 700;
}

.callout-panel p {
  margin: 0 0 12px;
  font-size: 14px;
  color: var(--muted);
}

.callout-panel p:last-child {
  margin-bottom: 0;
}

/* Quick Start Steps */
.steps-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  margin-top: 26px;
}

.step-card {
  min-width: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px;
  overflow-wrap: anywhere;
}

.step-num {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: rgba(184, 161, 250, 0.16);
  color: var(--violet);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 12px;
}

.step-card h3 {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 600;
}

.step-card p {
  margin: 0;
  font-size: 13.5px;
  color: var(--muted);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 40px 0 56px;
  color: var(--muted);
  font-size: 14px;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

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

/* Responsive */
@media (max-width: 1024px) {
  .hero-grid,
  .feature-split,
  .everyday-grid {
    grid-template-columns: 1fr;
  }

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

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

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

@media (max-width: 767px) {
  .nav-links {
    display: none;
  }

  .hero {
    padding: 40px 0 32px;
  }

  .section {
    padding: 52px 0;
  }

  .bus-row,
  .flow-diagram,
  .steps-list {
    grid-template-columns: 1fr;
  }

  /* On mobile, keep pins on image and use the docked card below so bubbles never clip */
  .bubble-card {
    display: none !important;
  }

  .hotspot-pin {
    width: 26px;
    height: 26px;
    font-size: 11px;
  }

  .tour-dock {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}