:root {
  --bg: #0b0d10;
  --bg-elevated: #14171b;
  --border: #23272e;
  --text: #e8eaed;
  --text-dim: #9aa1ab;
  --accent: #5eead4;
  --accent-dim: #2dd4bf;
  --mono: "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Helvetica, Arial, sans-serif;
  --max: 720px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  font-size: 17px;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 64px 24px 96px;
}

header.site {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  max-width: var(--max);
  margin: 0 auto;
  padding: 28px 24px 0;
}

header.site a.logo {
  font-family: var(--mono);
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  font-size: 15px;
  letter-spacing: 0.02em;
}

header.site nav a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 14px;
  margin-left: 20px;
}

header.site nav a:hover { color: var(--accent); }

.eyebrow {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

h1 {
  font-size: 2.1rem;
  line-height: 1.25;
  margin: 0 0 18px;
  letter-spacing: -0.01em;
}

h2 {
  font-size: 1.35rem;
  margin: 2.4em 0 0.7em;
  letter-spacing: -0.005em;
}

h3 {
  font-size: 1.05rem;
  margin: 1.8em 0 0.5em;
  color: var(--text);
}

p { color: var(--text-dim); margin: 0 0 1.1em; }
p strong, li strong { color: var(--text); }

.lede {
  font-size: 1.15rem;
  color: var(--text);
  margin-bottom: 2em;
}

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

.card-list {
  list-style: none;
  padding: 0;
  margin: 2em 0;
}

.card-list li {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 20px;
  margin-bottom: 12px;
  background: var(--bg-elevated);
}

.card-list a.card-title {
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  display: block;
  margin-bottom: 6px;
}

.card-list a.card-title:hover { color: var(--accent); }

.card-list .card-desc {
  color: var(--text-dim);
  font-size: 0.95rem;
  margin: 0;
}

.card-list .card-num {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 0.85rem;
  margin-right: 8px;
}

blockquote {
  border-left: 3px solid var(--accent-dim);
  margin: 1.6em 0;
  padding: 0.2em 0 0.2em 20px;
  color: var(--text);
  font-style: italic;
}

code, .mono {
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.1em 0.4em;
}

pre {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 18px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--text);
}

pre code { background: none; border: none; padding: 0; }

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.6em 0;
  font-size: 0.92rem;
}

th, td {
  text-align: left;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
}

th { color: var(--text); font-weight: 600; }
td { color: var(--text-dim); }

.stat-row {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin: 2em 0;
}

.stat {
  flex: 1 1 140px;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 18px;
  background: var(--bg-elevated);
}

.stat .num {
  font-family: var(--mono);
  font-size: 1.5rem;
  color: var(--accent);
  display: block;
}

.stat .label {
  font-size: 0.82rem;
  color: var(--text-dim);
}

.nav-footer {
  display: flex;
  justify-content: space-between;
  margin-top: 3em;
  padding-top: 1.6em;
  border-top: 1px solid var(--border);
  font-size: 0.95rem;
}

.cta {
  display: inline-block;
  margin-top: 1.5em;
  padding: 12px 22px;
  border-radius: 8px;
  background: var(--accent);
  color: #06231e;
  font-weight: 600;
  text-decoration: none;
  font-size: 0.95rem;
}

.cta:hover { background: var(--accent-dim); }

.cta.secondary { background: transparent; color: var(--accent); border: 1px solid var(--accent-dim); margin-left: 8px; }

.mode-shell { max-width: 1100px; margin: 0 auto; padding: 48px 24px 80px; }
.mode-intro { max-width: 720px; }
.mode-switcher { display: flex; gap: 8px; flex-wrap: wrap; margin: 28px 0 20px; }
.mode-tab, .control-button, .chat-form button { border: 1px solid var(--border); background: var(--bg-elevated); color: var(--text-dim); border-radius: 999px; padding: 11px 15px; font: inherit; cursor: pointer; }
.mode-tab.active, .mode-tab:hover, .control-button:hover { color: var(--bg); border-color: var(--accent); background: var(--accent); }
.mode-layout { display: grid; grid-template-columns: minmax(300px, 0.9fr) minmax(360px, 1.1fr); gap: 18px; align-items: stretch; }
.presence-panel, .conversation-panel, .static-links { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: 16px; padding: 18px; }
.presence-topline { display: flex; align-items: center; gap: 8px; color: var(--text); font: 13px var(--mono); margin-bottom: 14px; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 14px var(--accent); }
.presence-note { margin-left: auto; color: var(--text-dim); }
.talking-head { min-height: 420px; border: 1px solid var(--border); border-radius: 12px; position: relative; overflow: hidden; display: flex; align-items: center; justify-content: center; background: radial-gradient(circle at 50% 22%, #27333a, #101419 58%, #080a0d); }
.talking-head.hidden { display: none; }
.stream-placeholder, .chat-head, .static-head { text-align: center; display: grid; gap: 10px; color: var(--text); padding: 28px; }
.stream-placeholder small, .chat-head small, .static-head small { color: var(--text-dim); max-width: 240px; }
.stream-icon { font-size: 54px; color: var(--accent); }
.avatar-glow { position: absolute; width: 280px; height: 280px; border-radius: 50%; background: radial-gradient(circle, rgba(94,234,212,.22), rgba(94,234,212,0) 70%); filter: blur(6px); animation: avatar-breathe 4.5s ease-in-out infinite; }
.is-speaking .avatar-glow { animation-duration: 1.4s; }
@keyframes avatar-breathe { 0%, 100% { transform: scale(1); opacity: .7; } 50% { transform: scale(1.06); opacity: 1; } }
.avatar-rig { position: relative; z-index: 1; width: 210px; height: 270px; animation: avatar-sway 6s ease-in-out infinite; }
@keyframes avatar-sway { 0%, 100% { transform: rotate(-0.6deg) translateY(0); } 50% { transform: rotate(0.6deg) translateY(-2px); } }
.avatar-neck { position: absolute; width: 74px; height: 84px; bottom: 8px; left: 50%; transform: translateX(-50%); background: linear-gradient(160deg,#c99672,#9c6a54); border-radius: 22px 22px 10px 10px; box-shadow: inset 0 -10px 18px rgba(0,0,0,.25); }
.avatar-shoulders { position: absolute; width: 190px; height: 70px; bottom: -6px; left: 50%; transform: translateX(-50%); background: linear-gradient(180deg,#1c2b33,#101a20); border-radius: 90px 90px 0 0; box-shadow: 0 -2px 0 rgba(94,234,212,.18) inset; }
.avatar-face { position: absolute; left: 50%; top: 6px; transform: translateX(-50%); width: 176px; height: 210px; border-radius: 46% 46% 42% 42%; background: linear-gradient(155deg,#e3ad84 0%,#d69d78 45%,#b17b5e 82%,#8f5f47 100%); box-shadow: 0 20px 40px -12px #04070a, inset 0 -14px 22px rgba(0,0,0,.14); z-index: 1; }
.avatar-hair { position: absolute; left: 50%; top: -16px; transform: translateX(-50%); width: 202px; height: 128px; border-radius: 52% 52% 40% 40% / 60% 60% 30% 30%; background: linear-gradient(150deg,#2b2026,#171015 70%); z-index: 0; }
.avatar-blush { position: absolute; width: 26px; height: 15px; border-radius: 50%; background: rgba(219,110,90,.28); top: 128px; filter: blur(2px); z-index: 2; }
.avatar-blush.left { left: 24px; } .avatar-blush.right { right: 24px; }
.avatar-eyebrow { position: absolute; width: 30px; height: 5px; border-radius: 4px; background: #201417; top: 78px; z-index: 2; transform-origin: center; transition: transform .2s ease; }
.avatar-eyebrow.left { left: 42px; transform: rotate(-6deg); } .avatar-eyebrow.right { right: 42px; transform: rotate(6deg); }
.is-speaking .avatar-eyebrow.left { transform: rotate(-9deg) translateY(-1px); } .is-speaking .avatar-eyebrow.right { transform: rotate(9deg) translateY(-1px); }
.avatar-eye { position: absolute; width: 17px; height: 17px; top: 96px; z-index: 2; }
.avatar-eye.left { left: 44px; } .avatar-eye.right { right: 44px; }
.avatar-eye .iris { position: absolute; inset: 0; border-radius: 50%; background: radial-gradient(circle at 35% 32%, #6b4230, #2c1a11 72%); box-shadow: 0 0 0 2px rgba(20,12,8,.15); }
.avatar-eye .iris:after { content: ''; position: absolute; width: 4px; height: 4px; border-radius: 50%; background: #fff; top: 3px; left: 4px; opacity: .85; }
.avatar-eye .lid { position: absolute; left: -1px; right: -1px; top: -2px; height: 0; background: #d69d78; border-radius: 0 0 50% 50%; transition: height .09s ease; }
.is-blinking .avatar-eye .lid { height: 19px; }
.avatar-nose { position: absolute; left: 50%; top: 118px; transform: translateX(-50%); width: 10px; height: 22px; border-radius: 0 0 40% 40%; background: linear-gradient(180deg, rgba(0,0,0,0), rgba(120,72,52,.35)); z-index: 2; }
.avatar-mouth-wrap { position: absolute; left: 50%; top: 158px; transform: translateX(-50%); width: 60px; height: 30px; z-index: 2; display: flex; align-items: center; justify-content: center; }
.avatar-mouth { width: 40px; height: 6px; border-radius: 50%; background: linear-gradient(180deg,#7a3040,#4a1c28); transition: width .06s ease, height .06s ease, border-radius .06s ease, transform .06s ease; box-shadow: 0 2px 3px rgba(0,0,0,.3); }
.avatar-mouth:before { content: ''; position: absolute; left: 50%; top: 1px; transform: translateX(-50%); width: 0; height: 0; background: #fff; border-radius: 2px; opacity: 0; transition: all .06s ease; }
.avatar-mouth.v-rest { width: 38px; height: 4px; border-radius: 40%; }
.avatar-mouth.v-small { width: 30px; height: 12px; border-radius: 50%; }
.avatar-mouth.v-mid { width: 40px; height: 20px; border-radius: 46% 46% 50% 50%; }
.avatar-mouth.v-wide { width: 52px; height: 14px; border-radius: 30%; }
.avatar-mouth.v-round { width: 24px; height: 24px; border-radius: 50%; }
.avatar-mouth.v-mid:before, .avatar-mouth.v-round:before { width: 20px; height: 8px; opacity: .9; }
.avatar-label { position: absolute; bottom: 16px; left: 0; right: 0; text-align: center; color: var(--text-dim); font: 13px var(--mono); z-index: 2; }
.chat-badge, .static-mark { width: 100px; height: 100px; border-radius: 24px; display: grid; place-items: center; margin: auto; background: var(--accent); color: #06231e; font: 700 48px var(--mono); }
.static-mark { background: transparent; color: var(--accent); border: 1px solid var(--accent); font-size: 22px; }
.presence-controls { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }
.control-button { border-radius: 8px; font-size: 14px; }
.control-button:disabled { opacity: .35; cursor: not-allowed; }
.voice-state, .mode-help { color: var(--text-dim); font-size: 13px; margin: 12px 0 0; }
.callouts { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.callout { text-align: left; border: 1px solid var(--border); border-radius: 10px; padding: 14px; background: #101317; color: var(--text); cursor: pointer; }
.callout:hover { border-color: var(--accent-dim); transform: translateY(-1px); }
.callout span, .callout small { display: block; } .callout small { margin-top: 4px; color: var(--text-dim); }
.transcript { height: 310px; overflow: auto; margin: 14px 0; padding-right: 6px; }
.message { padding: 12px 14px; border-radius: 10px; margin-bottom: 10px; background: #101317; border: 1px solid var(--border); }
.message.user { margin-left: 22px; background: #13211f; }
.message-role { font: 12px var(--mono); color: var(--accent); } .message p { margin: 5px 0 0; font-size: 15px; }
.chat-form { display: flex; gap: 8px; } .chat-form input { min-width: 0; flex: 1; border: 1px solid var(--border); background: #0c0f12; color: var(--text); border-radius: 8px; padding: 12px; font: inherit; } .chat-form button { border-radius: 8px; color: var(--bg); background: var(--accent); }
.static-links { margin-top: 18px; } .static-link-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; } .static-link-grid a { border: 1px solid var(--border); border-radius: 8px; padding: 12px; text-decoration: none; color: var(--text); }
.static-link-grid a:hover { border-color: var(--accent); }
.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; }

@media (max-width: 760px) { .mode-layout { grid-template-columns: 1fr; } .talking-head { min-height: 320px; } .callouts, .static-link-grid { grid-template-columns: 1fr; } .cta.secondary { margin-left: 0; } }

.q-block {
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  border-radius: 10px;
  padding: 18px 20px;
  margin-bottom: 16px;
}

.q-num {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 0.85rem;
  display: block;
  margin-bottom: 6px;
}

footer.site {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px 60px;
  color: var(--text-dim);
  font-size: 0.85rem;
}