:root {
  color-scheme: dark;
  --bg: #0c0a12;
  --panel: rgba(24, 20, 32, .82);
  --panel-soft: rgba(255, 255, 255, .035);
  --ink: #f6f1ea;
  --muted: #b8b0bf;
  --quiet: #837b8c;
  --line: rgba(244, 235, 255, .13);
  --gold: #f1d38a;
  --teal: #70dfd1;
  --violet: #b996ff;
  --rose: #ef9bd2;
  --serif: "Cormorant Garamond", "Iowan Old Style", Georgia, serif;
  --sans: "Syne", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
}

* { box-sizing: border-box; }

html { min-width: 320px; background: var(--bg); }

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(ellipse at 50% -20%, rgba(118, 88, 150, .18), transparent 55%),
    linear-gradient(160deg, #100d17 0%, #0c0a12 55%, #100b13 100%);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}

button, input, textarea { font: inherit; }
button { color: inherit; }
button:focus-visible, input:focus-visible, textarea:focus-visible, a:focus-visible {
  outline: 3px solid var(--teal);
  outline-offset: 3px;
}

.ambient {
  position: fixed;
  z-index: 0;
  width: 34rem;
  height: 34rem;
  border-radius: 50%;
  filter: blur(100px);
  opacity: .14;
  pointer-events: none;
}
.ambient-one { top: 18rem; left: -23rem; background: #19cdbb; }
.ambient-two { top: 30rem; right: -24rem; background: #a14ef0; }

.page-shell { position: relative; z-index: 1; width: min(1160px, calc(100% - 48px)); margin: 0 auto; }
.masthead {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-size: 13px; letter-spacing: .045em; }
.brand i, .footer i { color: var(--gold); font-family: var(--serif); font-size: 1.2em; font-weight: 500; }
.brand-mark { color: var(--gold); font-size: 21px; text-shadow: 0 0 17px rgba(241,211,138,.5); }
.masthead-note { color: var(--quiet); font-size: 10px; letter-spacing: .2em; }

.intro { max-width: 760px; padding: 68px 0 32px; }
.eyebrow { margin: 0 0 12px; color: var(--teal); font-size: 10px; font-weight: 600; letter-spacing: .2em; text-transform: uppercase; }
.eyebrow-line { display: inline-block; width: 24px; height: 1px; margin: 0 9px 3px 0; background: currentColor; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 18px; font: 500 clamp(42px, 7vw, 76px)/.99 var(--serif); letter-spacing: -.045em; }
h1 em { color: var(--gold); font-weight: 400; }
.intro-copy { max-width: 590px; margin: 0; color: var(--muted); font: 400 19px/1.48 var(--serif); }
body:has(#voice-panel:not([hidden])) .intro { display: none; }

.service-status {
  min-height: 20px;
  margin: 0 0 18px;
  color: var(--quiet);
  font-size: 12px;
}
.service-status[data-state="online"] { color: var(--teal); }
.service-status[data-state="offline"] { color: #f0ad97; }

.panel {
  border: 1px solid var(--line);
  border-radius: 23px;
  background: linear-gradient(145deg, rgba(31, 26, 42, .91), rgba(18, 15, 25, .91));
  box-shadow: 0 28px 90px rgba(0,0,0,.28), inset 0 1px 0 rgba(255,255,255,.035);
  backdrop-filter: blur(18px);
}
.login-panel { position: relative; display: grid; grid-template-columns: 100px 1fr minmax(280px, 390px); gap: 25px; align-items: center; min-height: 250px; padding: 34px; overflow: hidden; }
.panel-orbit { position: relative; display: grid; width: 84px; height: 84px; place-items: center; border: 1px solid rgba(241,211,138,.3); border-radius: 50%; box-shadow: 0 0 40px rgba(241,211,138,.08); }
.panel-orbit::before, .panel-orbit::after { content: ""; position: absolute; inset: 10px; border: 1px solid rgba(112,223,209,.25); border-radius: 50%; transform: rotate(-32deg) scaleX(.48); }
.panel-orbit::after { border-color: rgba(185,150,255,.33); transform: rotate(32deg) scaleX(.48); }
.panel-orbit span { width: 13px; height: 13px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 20px rgba(241,211,138,.8); }
.login-copy h2, .conversation-head h2, .evidence-heading h2 { margin-bottom: 9px; font: 500 34px/1 var(--serif); letter-spacing: -.025em; }
.login-copy > p:last-child { max-width: 430px; margin: 0; color: var(--muted); font: 16px/1.5 var(--serif); }
.login-form label, .text-entry label { display: block; margin-bottom: 9px; color: var(--muted); font-size: 12px; }
.input-row { display: flex; gap: 10px; }
.input-row input, .question-form textarea {
  min-width: 0;
  width: 100%;
  border: 1px solid rgba(244,235,255,.18);
  border-radius: 12px;
  background: rgba(4,3,8,.42);
  color: var(--ink);
}
.input-row input { height: 48px; padding: 0 13px; }
.input-row input:focus, .question-form textarea:focus { border-color: rgba(112,223,209,.68); outline: none; box-shadow: 0 0 0 3px rgba(112,223,209,.11); }
.button { display: inline-flex; min-height: 46px; align-items: center; justify-content: center; gap: 12px; border: 1px solid transparent; border-radius: 12px; padding: 0 17px; cursor: pointer; font-size: 12px; font-weight: 650; letter-spacing: .015em; transition: transform .18s ease, border-color .18s ease, background .18s ease, opacity .18s ease; }
.button:hover:not(:disabled) { transform: translateY(-1px); }
.button:disabled { cursor: not-allowed; opacity: .45; }
.button-gold { flex: 0 0 auto; color: #17111b; background: linear-gradient(180deg, #fff2cf, var(--gold)); box-shadow: 0 8px 30px rgba(241,211,138,.15); }
.button-quiet { color: var(--muted); border-color: rgba(244,235,255,.16); background: rgba(255,255,255,.025); }
.button-quiet:hover:not(:disabled) { border-color: rgba(244,235,255,.35); color: var(--ink); }
.button-send { min-width: 88px; color: #100e15; background: var(--teal); }
.form-message { min-height: 18px; margin: 8px 0 0; color: #f0ad97; font-size: 12px; }

.voice-layout { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(300px, .85fr); gap: 18px; align-items: start; }
.conversation-panel { padding: 30px clamp(20px, 4vw, 42px) 28px; }
.conversation-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; }
.conversation-head .eyebrow, .evidence-heading .eyebrow { color: var(--gold); }
.conversation-head h2 { font-size: 38px; }
.voice-badges { display: grid; justify-items: end; gap: 6px; }
.voice-chip { display: inline-flex; align-items: center; gap: 8px; padding: 9px 12px; border: 1px solid rgba(241,211,138,.18); border-radius: 999px; color: #e8dcc3; background: rgba(241,211,138,.045); font-size: 10px; white-space: nowrap; }
.model-chip { max-width: 260px; color: var(--quiet); font-size: 9px; line-height: 1.3; text-align: right; overflow-wrap: anywhere; }
.voice-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 10px rgba(241,211,138,.7); }
.voice-stage { position: relative; display: grid; width: 150px; height: 140px; margin: 3px auto 0; place-items: center; }
.stage-ring { position: absolute; width: 138px; height: 138px; border: 1px solid rgba(241,211,138,.25); border-radius: 50%; transform: rotate(24deg) scaleX(.68); }
.ring-two { width: 132px; height: 132px; border-color: rgba(112,223,209,.24); transform: rotate(-42deg) scaleX(.62); }
.stage-core { display: grid; width: 66px; height: 66px; place-items: center; border: 1px solid rgba(255,255,255,.22); border-radius: 50%; color: var(--gold); background: radial-gradient(circle at 40% 35%, rgba(241,211,138,.19), rgba(59,40,76,.45) 65%, rgba(13,11,19,.9)); box-shadow: 0 0 30px rgba(185,150,255,.15), inset 0 0 20px rgba(241,211,138,.08); font-size: 27px; }
.room-status { min-height: 18px; margin: 0 0 18px; color: var(--teal); text-align: center; font-size: 12px; }
.room-status[data-state="thinking"] { color: var(--gold); }
.room-status[data-state="speaking"] { color: var(--rose); }
.room-controls { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; }
.audio-dock { position: absolute; width: 1px; height: 1px; overflow: hidden; }
.text-entry { margin-top: 27px; padding-top: 23px; border-top: 1px solid rgba(244,235,255,.1); }
.question-form { display: flex; gap: 10px; align-items: stretch; }
.question-form textarea { resize: vertical; min-height: 50px; max-height: 180px; padding: 13px 14px; font: 16px/1.4 var(--serif); }
.question-form textarea::placeholder { color: #797181; }
.microcopy { margin: 8px 0 0; color: var(--quiet); font-size: 10px; }
.transcript-section { margin-top: 26px; border-top: 1px solid rgba(244,235,255,.1); padding-top: 17px; }
.section-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; }
.section-heading h3 { margin: 0; font: 500 23px/1 var(--serif); }
.section-heading span { color: var(--quiet); font-size: 10px; }
.transcript { display: grid; gap: 10px; margin-top: 14px; }
.transcript-entry { max-width: 90%; padding: 10px 13px; border: 1px solid rgba(244,235,255,.1); border-radius: 13px; background: rgba(255,255,255,.025); }
.transcript-entry[data-role="assistant"] { justify-self: end; border-color: rgba(185,150,255,.2); background: rgba(185,150,255,.055); }
.transcript-entry[data-role="user"] { justify-self: start; border-color: rgba(112,223,209,.16); }
.transcript-role { display: block; margin-bottom: 4px; color: var(--quiet); font-size: 9px; letter-spacing: .12em; text-transform: uppercase; }
.transcript-text { margin: 0; color: var(--ink); font: 16px/1.42 var(--serif); white-space: pre-wrap; overflow-wrap: anywhere; }
.empty-note { margin: 12px 0 0; color: var(--quiet); font: 15px/1.4 var(--serif); }

.evidence-panel { position: sticky; top: 18px; padding: 25px; }
.evidence-heading h2 { font-size: 30px; line-height: 1.02; }
.evidence-intro { margin: 0; color: var(--muted); font: 15px/1.45 var(--serif); }
.coverage-note { margin: 19px 0 13px; border-left: 2px solid var(--gold); padding: 10px 12px; color: #e5d9c5; background: rgba(241,211,138,.055); font-size: 11px; line-height: 1.45; }
.coverage-list { display: grid; gap: 5px; margin: 9px 0 0; padding-left: 15px; color: #b8adba; font-size: 10px; }
.source-list { display: grid; gap: 10px; }
.source-card { padding: 13px; border: 1px solid rgba(244,235,255,.1); border-radius: 13px; background: rgba(255,255,255,.025); }
.source-title { display: inline-block; margin-bottom: 7px; color: var(--teal); font-size: 12px; font-weight: 600; line-height: 1.35; text-decoration-color: rgba(112,223,209,.38); text-underline-offset: 3px; }
.source-title.no-link { color: var(--ink); text-decoration: none; }
.source-excerpt { margin: 0; color: var(--muted); font: 14px/1.42 var(--serif); overflow-wrap: anywhere; }
.source-meta { margin: 8px 0 0; color: var(--quiet); font-size: 9px; letter-spacing: .06em; overflow-wrap: anywhere; }
.source-details { margin-top: 9px; border-top: 1px solid rgba(244,235,255,.08); padding-top: 8px; color: var(--quiet); font-size: 10px; }
.source-details summary { color: var(--teal); cursor: pointer; }
.source-detail { margin: 8px 0 0; color: var(--muted); line-height: 1.4; overflow-wrap: anywhere; }
.source-detail strong { color: #d9cfdf; font-weight: 600; }
.evidence-footnote { margin: 17px 0 0; color: var(--quiet); font-size: 10px; line-height: 1.45; }

.footer { display: flex; align-items: center; justify-content: space-between; min-height: 76px; margin-top: 37px; border-top: 1px solid rgba(255,255,255,.08); color: var(--quiet); font-size: 10px; letter-spacing: .08em; }
.footer > span:first-child { color: var(--gold); font-size: 15px; }
.text-button { border: 0; padding: 10px 0 10px 12px; color: var(--muted); background: transparent; cursor: pointer; font-size: 11px; text-decoration: underline; text-decoration-color: rgba(255,255,255,.28); text-underline-offset: 4px; }
.text-button:hover { color: var(--ink); }

[hidden] { display: none !important; }

@media (max-width: 900px) {
  .login-panel { grid-template-columns: 76px 1fr; }
  .panel-orbit { width: 68px; height: 68px; }
  .login-form { grid-column: 2; }
  .voice-layout { grid-template-columns: minmax(0, 1fr); }
  .evidence-panel { position: static; }
}

@media (max-width: 560px) {
  .page-shell { width: min(100% - 28px, 520px); }
  .masthead { min-height: 64px; }
  .brand { font-size: 11px; }
  .masthead-note { font-size: 8px; letter-spacing: .14em; }
  .intro { padding: 48px 0 26px; }
  h1 { font-size: clamp(41px, 12vw, 61px); }
  .intro-copy { font-size: 17px; }
  .login-panel { grid-template-columns: 1fr; gap: 17px; padding: 23px 20px; }
  .panel-orbit { position: absolute; top: 22px; right: 23px; width: 54px; height: 54px; opacity: .8; }
  .login-copy { padding-right: 40px; }
  .login-copy h2 { font-size: 31px; }
  .login-copy > p:last-child { max-width: 300px; font-size: 15px; }
  .login-form { grid-column: auto; }
  .input-row { flex-direction: column; }
  .input-row .button { width: 100%; }
  .conversation-panel { padding: 22px 17px; border-radius: 18px; }
  .conversation-head { flex-direction: column; }
  .conversation-head h2 { font-size: 34px; }
  .voice-badges { justify-items: start; }
  .model-chip { text-align: left; }
  .voice-chip { align-self: flex-start; }
  .voice-stage { height: 132px; margin-top: 0; }
  .stage-ring { width: 124px; height: 124px; }
  .ring-two { width: 116px; height: 116px; }
  .room-controls { display: grid; grid-template-columns: 1fr 1fr; }
  .room-controls .button-gold { grid-column: 1 / -1; }
  .room-controls .button { width: 100%; padding-inline: 8px; }
  .question-form { flex-direction: column; }
  .question-form .button { width: 100%; }
  .evidence-panel { padding: 21px 18px; border-radius: 18px; }
  .section-heading span { max-width: 130px; text-align: right; }
  .transcript-entry { max-width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}