:root {
  --navy: #07111f;
  --navy-2: #0c1a2e;
  --ink: #e8f4ff;
  --muted: #9bb3c9;
  --teal: #2ee6c8;
  --cyan: #5ad6ff;
  --card: rgba(14, 32, 56, 0.82);
  --line: rgba(90, 214, 255, 0.18);
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: Outfit, system-ui, sans-serif;
  background: radial-gradient(1200px 600px at 50% -10%, #123057 0%, var(--navy) 55%);
  color: var(--ink);
}

.glow {
  position: fixed;
  inset: auto -20% 10% auto;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(46, 230, 200, 0.12), transparent 68%);
  pointer-events: none;
}

.top {
  max-width: 1040px;
  margin: 0 auto;
  padding: 28px 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(12, 26, 46, 0.7);
  color: var(--ink);
  text-decoration: none;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.btn-solid {
  background: linear-gradient(180deg, #2ee6c8, #1bb8a4);
  color: #062018;
  border-color: transparent;
}
.hero-actions { margin: 0 0 36px; }
.err { color: #ff8fa0; }
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.brand img { display: block; }

.hero {
  max-width: 1040px;
  margin: 0 auto;
  padding: 56px 22px 24px;
  text-align: center;
}
h1 {
  margin: 0 0 16px;
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.12;
  font-weight: 700;
  letter-spacing: -0.03em;
}
.lead {
  max-width: 34rem;
  margin: 0 auto 42px;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.55;
}

.stage {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  min-height: 240px;
}
.device { filter: drop-shadow(0 18px 30px rgba(0, 0, 0, 0.35)); }
.bezel {
  width: 132px;
  height: 220px;
  padding: 10px;
  border-radius: 22px;
  background: linear-gradient(180deg, #17304f, #0a1b30);
  border: 1px solid var(--line);
}
.bezel.wide {
  width: 220px;
  height: 148px;
  border-radius: 14px;
}
.screen {
  position: relative;
  height: 100%;
  border-radius: 14px;
  background: #081525;
  overflow: hidden;
}
.peer {
  position: absolute;
  top: 10px;
  left: 12px;
  font-size: 0.72rem;
  color: var(--cyan);
}
.bubble {
  position: absolute;
  bottom: 18px;
  max-width: 78%;
  padding: 7px 10px;
  border-radius: 12px;
  font-size: 0.72rem;
}
.bubble.out { right: 10px; background: #16445a; }
.bubble.in { left: 10px; background: #123a4d; }
.react {
  position: absolute;
  font-size: 1.35rem;
  filter: drop-shadow(0 4px 8px rgba(46, 230, 200, 0.25));
}

.path {
  width: 72px;
  height: 4px;
  border-radius: 99px;
  background: linear-gradient(90deg, transparent, var(--teal), var(--cyan), transparent);
  position: relative;
}
.pulse, .pulse.delay {
  position: absolute;
  top: 50%;
  width: 10px;
  height: 10px;
  margin-top: -5px;
  border-radius: 50%;
  background: var(--teal);
  animation: travel 3.2s ease-in-out infinite;
}
.pulse.delay { animation-delay: 1.6s; background: var(--cyan); }

.fly-msg { animation: pop 3.2s ease-in-out infinite; }
.fly-msg-in { animation: pop 3.2s ease-in-out 1.6s infinite; }
.send-react { top: 46%; right: 16px; animation: hop 3.2s ease-in-out infinite; }
.catch-react { top: 42%; left: 18px; animation: hop 3.2s ease-in-out 1.6s infinite; }

.cards {
  max-width: 1040px;
  margin: 0 auto;
  padding: 28px 22px 72px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.cards article {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px 20px 18px;
  text-align: left;
}
.cards h2 {
  margin: 0 0 8px;
  font-size: 1.05rem;
  color: var(--teal);
}
.cards p { margin: 0; color: var(--muted); line-height: 1.5; font-size: 0.95rem; }
.later {
  margin-top: 12px !important;
  color: var(--cyan) !important;
  font-size: 0.78rem !important;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

footer {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 22px 36px;
  display: flex;
  justify-content: space-between;
  color: #6f88a0;
  font-size: 0.85rem;
}

@keyframes travel {
  0% { left: 0; opacity: 0; }
  15% { opacity: 1; }
  85% { opacity: 1; }
  100% { left: calc(100% - 10px); opacity: 0; }
}
@keyframes hop {
  0%, 35% { transform: scale(0.2); opacity: 0; }
  48% { transform: scale(1.15); opacity: 1; }
  70% { transform: scale(1); opacity: 1; }
  100% { transform: scale(0.4); opacity: 0; }
}
@keyframes pop {
  0%, 40% { opacity: 0; transform: translateY(8px); }
  52%, 78% { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; }
}

@media (max-width: 760px) {
  .hero { padding-top: 36px; }
  .stage { flex-direction: column; }
  .path { width: 4px; height: 48px; background: linear-gradient(180deg, transparent, var(--teal), transparent); }
  .pulse, .pulse.delay { left: -3px; animation-name: travel-v; }
  .bezel.wide { width: 200px; }
  .cards { grid-template-columns: 1fr; }
  footer { flex-direction: column; gap: 6px; }
}

@keyframes travel-v {
  0% { top: 0; opacity: 0; }
  15% { opacity: 1; }
  85% { opacity: 1; }
  100% { top: calc(100% - 10px); opacity: 0; }
}

.auth, .lab { max-width: 640px; margin: 0 auto; padding: 48px 22px 72px; }
.card-form {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 28px 24px;
  display: grid;
  gap: 12px;
}
.card-form h1 { font-size: 1.6rem; margin: 0; }
.card-form p, .lead.tight { margin: 0 0 8px; color: var(--muted); text-align: left; }
label { display: grid; gap: 6px; color: var(--muted); font-size: 0.92rem; }
input {
  width: 100%;
  padding: 11px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #081525;
  color: var(--ink);
  font: inherit;
}
.status {
  margin: 0 0 16px;
  padding: 8px 12px;
  border-radius: 999px;
  display: inline-block;
  background: #2a1a22;
  color: #ffb4c0;
}
.status.on { background: #12352f; color: var(--teal); }
.row { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0; }
.row button {
  background: #12324a;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 10px 14px;
  font: inherit;
  cursor: pointer;
}
.burst {
  min-height: 2.4rem;
  font-size: 1.6rem;
  color: var(--teal);
}
.invite { margin: 12px 0 4px; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 18px; }
.split section {
  background: #081525;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
  min-height: 140px;
}
.split h2 { margin: 0 0 8px; font-size: 0.95rem; color: var(--teal); }
.split p { margin: 0 0 6px; color: var(--muted); }
@media (max-width: 760px) { .split { grid-template-columns: 1fr; } }

.console-body { min-height: 100%; }
.console-who { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: 0.92rem; }
.console-nav {
  max-width: 1040px;
  margin: 0 auto;
  padding: 8px 22px 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.console-nav button {
  background: transparent;
  color: var(--muted);
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 8px 14px;
  font: inherit;
  cursor: pointer;
}
.console-nav button.on {
  color: var(--ink);
  border-color: var(--line);
  background: var(--card);
}
.console-main { max-width: 1040px; margin: 0 auto; padding: 28px 22px 72px; }
.console-main h1 { font-size: 2rem; margin: 0 0 8px; }
.console-main h2 { font-size: 1.1rem; margin: 28px 0 10px; color: var(--teal); }
.console-stats { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin: 16px 0 24px; }
.console-stats .stat { color: var(--muted); }
.console-table { overflow: auto; border: 1px solid var(--line); border-radius: 14px; background: var(--card); }
.console-table table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.console-table th, .console-table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.console-table th { color: var(--muted); font-weight: 600; }
.muted { color: var(--muted); }
.tag { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 0.78rem; }
.tag.ok { background: #12352f; color: var(--teal); }
.tag.warn { background: #3a2a12; color: #ffd39a; }
.guide {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px 16px 28px;
  line-height: 1.55;
  font-size: 0.95rem;
  overflow-wrap: anywhere;
}
.guide.rendered { white-space: normal; }
.guide-toc {
  background: #081525;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 16px;
  margin: 0 0 22px;
}
.guide-toc ol { margin: 8px 0 0; padding-left: 1.2rem; }
.guide-toc .toc-1 { font-weight: 600; margin-top: 6px; }
.guide-toc .toc-2 { margin-left: 0.6rem; }
.guide-body h1 { font-size: 1.7rem; margin: 8px 0 12px; }
.guide-body h2 { font-size: 1.2rem; margin: 28px 0 10px; color: var(--teal); scroll-margin-top: 16px; }
.guide-body h3 { font-size: 1.02rem; margin: 20px 0 8px; }
.guide-body p { margin: 0 0 12px; }
.guide-body ol, .guide-body ul { margin: 0 0 14px; padding-left: 1.3rem; }
.guide-body li { margin: 0 0 6px; }
.guide-body hr { border: 0; border-top: 1px solid var(--line); margin: 22px 0; }
.md-table { overflow: auto; margin: 0 0 16px; border: 1px solid var(--line); border-radius: 10px; }
.md-table table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.md-table th, .md-table td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.md-table th { color: var(--muted); font-weight: 600; white-space: nowrap; }
.md-table code, .guide-body code { font-size: 0.86em; }
.code-wrap { position: relative; margin: 0 0 16px; }
.code-wrap pre {
  margin: 0;
  padding: 14px 16px 16px;
  overflow: auto;
  background: #07111d;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 0.86rem;
}
.copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  z-index: 1;
  font: inherit;
  font-size: 0.78rem;
  padding: 4px 8px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #0d2133;
  color: var(--ink);
  cursor: pointer;
}
.guide-picks { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0 8px; }
.guide-pick {
  font: inherit;
  cursor: pointer;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  border-radius: 999px;
  padding: 7px 12px;
}
.guide-pick.on { color: var(--ink); background: var(--card); }
.guide-dl { margin: 0 0 14px; }
.guide-dl a { color: var(--teal); }
.start-banner {
  background: #3a2a12;
  color: #ffd39a;
  border-radius: 12px;
  padding: 12px 14px;
  margin: 0 0 16px;
}
code.sha { font-size: 0.72rem; word-break: break-all; }
@media (max-width: 720px) {
  .console-main { padding: 18px 14px 64px; }
  .console-main h1 { font-size: 1.55rem; }
  .guide { padding: 14px 12px 22px; }
  .copy-btn { position: static; margin: 0 0 6px auto; display: block; }
}
.console-main select {
  width: 100%;
  padding: 11px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #081525;
  color: var(--ink);
  font: inherit;
}

@media (prefers-reduced-motion: reduce) {
  .pulse, .pulse.delay, .fly-msg, .fly-msg-in, .send-react, .catch-react { animation: none; opacity: 1; }
}