:root {
  color-scheme: dark;
  --bg: #000000;
  --fg: #eef5ff;
  --muted: #aab6c6;
  --accent: #00b4dc;
  --card: #070a0f;
  --border: rgba(255, 255, 255, 0.12);
  --logo-inner-offset-y: 0px;
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: radial-gradient(1200px 800px at 15% -10%, rgba(0, 180, 220, 0.12), transparent 60%),
    radial-gradient(900px 650px at 85% 10%, rgba(238, 245, 255, 0.06), transparent 55%),
    var(--bg);
  color: var(--fg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--fg);
  text-decoration-thickness: 0.09em;
  text-underline-offset: 0.14em;
}

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

.container {
  width: 100%;
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 16px;
}

.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;
}

.mt-0 {
  margin-top: 0;
}

.mt-6 {
  margin-top: 6px;
}

.mt-10 {
  margin-top: 10px;
}

.mt-12 {
  margin-top: 12px;
}

.mt-14 {
  margin-top: 14px;
}

.mt-16 {
  margin-top: 16px;
}

.mt-18 {
  margin-top: 18px;
}

.inline-block {
  display: inline-block;
}

.ml-10 {
  margin-left: 10px;
}

.section-title-sm {
  font-size: 20px;
}

.is-hidden {
  display: none;
}

.form-input,
.form-select,
.form-file {
  appearance: none;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg);
  padding: 10px 12px;
  border-radius: 12px;
  min-height: 48px;
}

.form-input::placeholder {
  color: rgba(170, 182, 198, 0.75);
}

.form-select {
  min-height: 48px;
}

.w-160 {
  width: 160px;
}

.w-220 {
  width: 220px;
}

.w-320 {
  width: 320px;
}

.video-frame {
  width: 100%;
  border-radius: 12px;
  background: #000;
}

.video-frame--small {
  max-height: 220px;
}

.video-frame--medium {
  max-height: 260px;
}

.log-output {
  margin: 0;
  white-space: pre-wrap;
  font-size: 13px;
  color: var(--muted);
}

.qr-box {
  background: #ffffff;
  padding: 12px;
  border-radius: 12px;
  display: inline-block;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  background: rgba(0, 0, 0, 0.82);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 12px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-left: 8px;
  text-decoration: none;
}

.logo {
  position: relative;
  width: 38px;
  height: 38px;
  flex: 0 0 38px;
}

.logo-ring {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.logo-ring {
  filter: drop-shadow(0 0 10px rgba(0, 180, 220, 0.28));
}

.logo-ring-outer {
  filter: none;
  opacity: 1;
}

.logo-ring-inner {
  inset: 26%;
  width: 48%;
  height: 48%;
  opacity: 0.95;
  translate: 0 var(--logo-inner-offset-y);
  animation: logo-rotate 10s linear infinite;
  filter: drop-shadow(0 0 12px rgba(0, 180, 220, 0.42));
}

.brand-dot {
  width: 10px;
  height: 10px;
  background: var(--accent);
  border-radius: 999px;
  box-shadow: 0 0 18px rgba(0, 180, 220, 0.55);
}

.brand-name {
  font-weight: 700;
  letter-spacing: 0.4px;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.nav-links a {
  text-decoration: none;
  color: var(--muted);
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid transparent;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
}

.nav-links a:hover {
  border-color: var(--border);
  color: var(--fg);
}

.nav-menu {
  display: none;
  position: relative;
}

.nav-menu-button {
  list-style: none;
  cursor: pointer;
  -webkit-user-select: none;
  user-select: none;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid transparent;
  color: var(--muted);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.nav-menu-button:hover {
  border-color: var(--border);
  color: var(--fg);
}

.nav-menu-button::-webkit-details-marker {
  display: none;
}

.nav-menu-icon {
  width: 22px;
  height: 14px;
  display: block;
  background:
    linear-gradient(var(--fg) 0 0) left 0 top 0 / 100% 2px no-repeat,
    linear-gradient(var(--fg) 0 0) left 0 center / 100% 2px no-repeat,
    linear-gradient(var(--fg) 0 0) left 0 bottom / 100% 2px no-repeat;
}

.nav-menu-panel {
  position: absolute;
  right: 0;
  top: calc(100% + 10px);
  width: min(320px, 100vw - 32px);
  max-height: calc(100vh - 96px);
  overflow: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  background: rgba(7, 10, 15, 0.98);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 10px;
  padding-bottom: calc(10px + env(safe-area-inset-bottom));
  box-shadow: 0 22px 80px rgba(0, 0, 0, 0.65);
}

.nav-menu[open] .nav-menu-panel {
  transform-origin: top right;
  animation: nav-menu-panel-in 160ms ease-out;
}

.nav-menu-links {
  display: grid;
  gap: 6px;
}

.nav-menu-links a {
  color: var(--muted);
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid transparent;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

.nav-menu-links a:hover {
  border-color: var(--border);
  color: var(--fg);
}

.nav-menu-divider {
  margin: 10px 0;
  height: 1px;
  background: var(--border);
}

.nav-menu-audiobook {
  display: grid;
  gap: 10px;
}

.nav-menu-audiobook-title {
  font-weight: 700;
  letter-spacing: 0.2px;
}

.nav-menu-audiobook .audio {
  margin-top: 0;
}

.nav-menu-audiobook-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.nav-menu-audiobook-controls button {
  appearance: none;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  color: var(--fg);
  border-radius: 12px;
  padding: 10px 12px;
  min-height: 44px;
  cursor: pointer;
}

.nav-menu-audiobook-controls button:hover {
  border-color: rgba(0, 180, 220, 0.45);
  background: rgba(0, 180, 220, 0.12);
}

.nav-menu-track-list {
  display: grid;
  gap: 6px;
}

.nav-menu-track {
  appearance: none;
  background: transparent;
  border: 1px solid transparent;
  color: var(--muted);
  text-align: left;
  padding: 10px 12px;
  border-radius: 12px;
  min-height: 44px;
  cursor: pointer;
}

.nav-menu-track:hover {
  border-color: var(--border);
  color: var(--fg);
}

.nav-menu-track[aria-current="true"] {
  border-color: rgba(0, 180, 220, 0.45);
  color: var(--fg);
}

.audiobook-player {
  display: grid;
  gap: 10px;
}

.audiobook-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.audiobook-now {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
}

.audiobook-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.audiobook-controls button {
  appearance: none;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  color: var(--fg);
  border-radius: 12px;
  padding: 10px 12px;
  min-height: 44px;
  cursor: pointer;
}

.audiobook-controls button:hover {
  border-color: rgba(0, 180, 220, 0.45);
  background: rgba(0, 180, 220, 0.12);
}

.audiobook-controls button[data-audiobook-speed-rate][aria-pressed="true"] {
  border-color: rgba(0, 180, 220, 0.6);
  background: rgba(0, 180, 220, 0.18);
  color: var(--fg);
}

.audiobook-controls button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.audiobook-seek-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 10px;
  align-items: center;
}

.audiobook-seek {
  width: 100%;
  accent-color: var(--accent);
}

.audiobook-time {
  color: var(--muted);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.audiobook-speed {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
}

.audiobook-speed select {
  appearance: none;
  background: rgba(255, 255, 255, 0.04);
  background-image:
    linear-gradient(45deg, transparent 50%, rgba(238, 245, 255, 0.6) 50%),
    linear-gradient(135deg, rgba(238, 245, 255, 0.6) 50%, transparent 50%);
  background-position: right 14px top 50%, right 9px top 50%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  border: 1px solid var(--border);
  color: var(--fg);
  border-radius: 12px;
  padding: 10px 12px;
  padding-right: 32px;
  min-height: 44px;
  cursor: pointer;
}

.audiobook-speed select:hover {
  border-color: rgba(0, 180, 220, 0.45);
}

.audiobook-track-list {
  display: grid;
  gap: 6px;
  max-height: 240px;
  overflow: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}

.audiobook-track {
  appearance: none;
  background: transparent;
  border: 1px solid transparent;
  color: var(--muted);
  text-align: left;
  padding: 10px 12px;
  border-radius: 12px;
  min-height: 44px;
  cursor: pointer;
}

.audiobook-track:hover {
  border-color: var(--border);
  color: var(--fg);
}

.audiobook-track[aria-current="true"] {
  border-color: rgba(0, 180, 220, 0.45);
  color: var(--fg);
}

.audiobook-fire {
  width: 14px;
  height: 14px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 30%, rgba(0, 180, 220, 0.95), rgba(0, 180, 220, 0.28) 55%, rgba(0, 180, 220, 0.08) 72%, transparent 76%);
  box-shadow: 0 0 18px rgba(0, 180, 220, 0.2);
  opacity: 0.25;
}

.audiobook-player[data-audiobook-state="playing"] .audiobook-fire,
.audiobook-player[data-audiobook-state="loading"] .audiobook-fire {
  opacity: 1;
}

.audiobook-player[data-audiobook-state="playing"] .audiobook-fire {
  animation: audiobook-fire-flicker 900ms ease-in-out infinite;
}

.audiobook-player[data-audiobook-state="loading"] .audiobook-fire {
  animation: audiobook-fire-loading 720ms ease-in-out infinite;
}

.section {
  padding: 52px 0;
}

.hero {
  padding-top: 64px;
}

.section-title {
  font-size: clamp(24px, 4.8vw, 38px);
  line-height: 1.2;
  margin: 0 0 12px 0;
}

.hero .section-title {
  font-size: clamp(30px, 5.3vw, 54px);
  letter-spacing: -0.02em;
}

.hero-image {
  width: min(320px, 100%);
  height: auto;
  display: block;
  margin: 12px auto 0;
  filter: drop-shadow(0 0 18px rgba(0, 180, 220, 0.18));
}

.audio {
  width: 100%;
  margin-top: 12px;
}

.bullets {
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
  display: grid;
  gap: 10px;
}

.bullets li {
  position: relative;
  padding-left: 14px;
  color: var(--muted);
}

.bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.95em;
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 14px rgba(0, 180, 220, 0.35);
  transform: translateY(-50%);
}

.lead {
  color: var(--muted);
  font-size: 18px;
  margin: 0;
}

.card {
  margin-top: 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.55);
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.card:hover {
  transform: translateY(-1px);
  border-color: rgba(0, 180, 220, 0.22);
  box-shadow: 0 22px 80px rgba(0, 0, 0, 0.65);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 14px;
}

.col-6 {
  grid-column: span 6;
}

.col-12 {
  grid-column: span 12;
}

.discord-shell {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 14px;
  align-items: start;
}

.peer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}

.peer-grid .card {
  margin-top: 0;
}

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

@media (max-width: 720px) {
  .col-6 {
    grid-column: span 12;
  }
}

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 14px;
  background: var(--accent);
  color: #071016;
  text-decoration: none;
  font-weight: 700;
  padding: 12px 16px;
  border-radius: 14px;
  min-height: 48px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.actions .cta {
  margin-top: 0;
}

.cta:hover {
  color: #071016;
  filter: brightness(1.05);
}

.cta.secondary {
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--border);
}

.cta.secondary:hover {
  color: var(--fg);
  border-color: rgba(0, 180, 220, 0.45);
}

.cta[aria-disabled="true"] {
  opacity: 0.55;
  pointer-events: none;
}

.small {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.footer {
  border-top: 1px solid var(--border);
  padding: 24px 0 40px;
  color: var(--muted);
}

.kbd {
  display: inline-block;
  padding: 2px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
}

@keyframes logo-spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes logo-rotate {
  to {
    rotate: 360deg;
  }
}

@keyframes logo-spin-reverse {
  to {
    transform: rotate(-360deg);
  }
}

@keyframes nav-menu-panel-in {
  from {
    opacity: 0;
    transform: translateY(-4px) scale(0.98);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes audiobook-fire-flicker {
  0% {
    transform: translateY(0) scale(1);
    filter: saturate(1);
    box-shadow: 0 0 18px rgba(0, 180, 220, 0.25);
  }

  45% {
    transform: translateY(-1px) scale(1.08);
    filter: saturate(1.2);
    box-shadow: 0 0 26px rgba(0, 180, 220, 0.42);
  }

  100% {
    transform: translateY(0) scale(1);
    filter: saturate(1);
    box-shadow: 0 0 18px rgba(0, 180, 220, 0.25);
  }
}

@keyframes audiobook-fire-loading {
  0% {
    transform: scale(0.92);
    opacity: 0.55;
  }

  50% {
    transform: scale(1.12);
    opacity: 1;
  }

  100% {
    transform: scale(0.92);
    opacity: 0.55;
  }
}

@media (prefers-reduced-motion: reduce) {
  .logo-ring-inner {
    animation: none;
  }

  .nav-menu[open] .nav-menu-panel {
    animation: none;
  }

  .audiobook-player[data-audiobook-state="playing"] .audiobook-fire,
  .audiobook-player[data-audiobook-state="loading"] .audiobook-fire {
    animation: none;
  }
}

@media (max-width: 720px) {
  .nav {
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    background: rgba(0, 0, 0, 0.92);
  }

  .nav-inner {
    flex-wrap: nowrap;
  }

  .nav-links {
    display: none;
  }

  .nav-menu {
    display: block;
  }

  .nav-menu-button {
    padding: 8px 10px;
    min-height: 40px;
  }
}