:root {
  color-scheme: dark;
  font-family: Inter, "SF Pro Display", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  --motion-x: 0;
  --motion-y: 0;
  --motion-energy: 0;
  --bg: #071016;
  --bg-deep: #03080c;
  --surface: rgba(13, 24, 32, .67);
  --surface-solid: #101c24;
  --surface-soft: rgba(255, 255, 255, .045);
  --surface-strong: rgba(20, 34, 44, .86);
  --line: rgba(177, 224, 238, .14);
  --line-strong: rgba(116, 225, 248, .26);
  --text: #f2f9fb;
  --text-soft: #b8c8ce;
  --muted: #71868e;
  --faint: #52666d;
  --accent: #63e7ff;
  --accent-bright: #b7f6ff;
  --accent-dim: rgba(70, 218, 246, .13);
  --violet: #9b7cff;
  --violet-dim: rgba(132, 98, 255, .15);
  --success: #6cf0bd;
  --danger: #ff9c8d;
  --shadow: 0 28px 100px rgba(0, 0, 0, .28);
  --header-height: 64px;
  --composer-height: 104px;
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #eef5f7;
  --bg-deep: #e4eef1;
  --surface: rgba(250, 253, 254, .72);
  --surface-solid: #f8fcfd;
  --surface-soft: rgba(8, 73, 91, .045);
  --surface-strong: rgba(250, 253, 254, .94);
  --line: rgba(6, 67, 84, .13);
  --line-strong: rgba(8, 119, 145, .23);
  --text: #092430;
  --text-soft: #3e5c66;
  --muted: #69818a;
  --faint: #8599a0;
  --accent: #007f9c;
  --accent-bright: #005f76;
  --accent-dim: rgba(0, 132, 161, .10);
  --violet: #6546d4;
  --violet-dim: rgba(101, 70, 212, .10);
  --success: #08795a;
  --danger: #ba4637;
  --shadow: 0 28px 100px rgba(25, 63, 74, .13);
}

* { box-sizing: border-box; }

html, body { min-height: 100%; }

html { background: var(--bg-deep); }

body {
  margin: 0;
  min-width: 320px;
  min-height: 100dvh;
  overflow: hidden;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

button, input, textarea { font: inherit; }
button { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button:focus-visible, input:focus-visible, textarea:focus-visible, a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

svg {
  display: block;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

#aurora-field {
  position: fixed;
  z-index: 0;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.ambient-grid {
  position: fixed;
  z-index: 1;
  inset: 0;
  opacity: .075;
  pointer-events: none;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(circle at 50% 50%, black, transparent 78%);
}

.ambient-noise {
  position: fixed;
  z-index: 2;
  inset: 0;
  opacity: .045;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    0deg,
    transparent 0 3px,
    color-mix(in srgb, currentColor 14%, transparent) 3.5px,
    transparent 4px 7px
  );
  mix-blend-mode: soft-light;
}

.app-header {
  position: fixed;
  z-index: 50;
  top: 0;
  right: 0;
  left: 0;
  height: calc(var(--header-height) + env(safe-area-inset-top));
  padding: env(safe-area-inset-top) max(14px, env(safe-area-inset-right)) 0 max(14px, env(safe-area-inset-left));
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 68%, transparent);
  backdrop-filter: blur(24px) saturate(145%);
  -webkit-backdrop-filter: blur(24px) saturate(145%);
}

.header-leading, .header-actions, .brand-lockup,
.factory-context, .trace-title, .answer-head {
  display: flex;
  align-items: center;
}

.header-leading { min-width: 0; gap: 9px; }
.header-actions { justify-content: flex-end; gap: 2px; }

.brand-lockup {
  position: relative;
  min-width: 0;
  gap: 9px;
  color: inherit;
}

.authenticated .brand-lockup::after {
  position: absolute;
  right: -2px;
  bottom: -1px;
  width: 8px;
  height: 8px;
  content: "";
  border: 2px solid var(--bg);
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 10px var(--success);
}

.brand-icon {
  width: 32px;
  height: 32px;
  flex: 0 0 32px;
  border-radius: 10px;
  box-shadow: 0 8px 28px color-mix(in srgb, #00867f 28%, transparent);
}

.brand-name {
  font-size: .82rem;
  font-weight: 680;
  letter-spacing: .1em;
  white-space: nowrap;
}

.icon-control, .voice-control, .send-control, .new-conversation,
.history-item, .prompt-chip, .login-submit, .drawer-scrim {
  border: 0;
  cursor: pointer;
}

.icon-control {
  position: relative;
  min-width: 48px;
  height: 48px;
  border: 1px solid transparent;
  border-radius: 15px;
  color: var(--text-soft);
  background: transparent;
  transition: border-color .22s ease, background .22s ease, color .22s ease, transform .22s ease;
}
.icon-control { display: grid; place-items: center; padding: 0; }
.icon-control svg { width: 20px; height: 20px; }
.icon-control:hover {
  border-color: var(--line);
  color: var(--accent-bright);
  background: var(--surface-soft);
}
.icon-control:active { transform: scale(.92); }
.icon-control:disabled { opacity: .38; cursor: default; }
.session-control { display: none; }
.authenticated .session-control { display: grid; }

#motion-toggle[data-state="unsupported"] { display: none; }
#motion-toggle[data-state="active"] { color: var(--accent-bright); background: var(--accent-dim); }
#motion-toggle[data-state="active"]::after {
  position: absolute;
  right: 6px;
  bottom: 6px;
  width: 5px;
  height: 5px;
  content: "";
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
}
#motion-toggle[data-state="requesting"]::before {
  position: absolute;
  inset: 6px;
  content: "";
  border: 1px solid var(--line);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .82s linear infinite;
}

.theme-symbol { position: relative; width: 17px; height: 17px; }
.theme-symbol svg { position: absolute; inset: 0; transition: opacity .3s ease, transform .45s cubic-bezier(.2,.8,.2,1); }
[data-theme="dark"] .theme-symbol .sun { opacity: 0; transform: rotate(-90deg) scale(.4); }
[data-theme="light"] .theme-symbol .moon { opacity: 0; transform: rotate(90deg) scale(.4); }

.app-frame {
  position: relative;
  z-index: 5;
  height: 100dvh;
  padding-top: calc(var(--header-height) + env(safe-area-inset-top));
}

.glass-panel {
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow), inset 0 1px rgba(255, 255, 255, .04);
  backdrop-filter: blur(30px) saturate(145%);
  -webkit-backdrop-filter: blur(30px) saturate(145%);
}

.login-view {
  position: relative;
  height: calc(100dvh - var(--header-height) - env(safe-area-inset-top));
  overflow: auto;
  padding: 28px max(24px, env(safe-area-inset-right)) calc(28px + env(safe-area-inset-bottom)) max(24px, env(safe-area-inset-left));
  display: grid;
  place-items: center;
}

.login-stage {
  position: relative;
  width: min(100%, 344px);
  display: grid;
  place-items: center;
  isolation: isolate;
}

.login-stage::before {
  position: absolute;
  z-index: -1;
  width: min(92vw, 460px);
  aspect-ratio: 1;
  content: "";
  pointer-events: none;
  border-radius: 50%;
  background:
    radial-gradient(circle at 38% 40%, var(--accent-dim), transparent 48%),
    radial-gradient(circle at 64% 60%, var(--violet-dim), transparent 50%);
  filter: blur(24px);
  opacity: .74;
  animation: login-breathe 6.8s ease-in-out infinite;
}

.history-head, .trace-header, .context-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.history-head h2, .trace-header h2, .empty-conversation h2 { margin: 0; font-weight: 520; letter-spacing: -.025em; }

#login-form {
  position: relative;
  width: 100%;
  padding: 17px 22px 19px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: color-mix(in srgb, var(--surface) 76%, transparent);
  box-shadow: var(--shadow), inset 0 1px rgba(255, 255, 255, .05);
  backdrop-filter: blur(32px) saturate(145%);
  -webkit-backdrop-filter: blur(32px) saturate(145%);
  transform: perspective(900px)
    rotateY(calc(var(--motion-x) * .75deg))
    rotateX(calc(var(--motion-y) * -.75deg));
  transition: transform .12s linear, border-color .3s ease;
}

#login-form::before {
  position: absolute;
  top: 0;
  right: 18%;
  left: 18%;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, transparent, var(--line-strong), transparent);
}

.login-field {
  position: relative;
  height: 58px;
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  transition: color .22s ease, border-color .22s ease;
}
.login-field:focus-within { color: var(--accent-bright); border-color: var(--line-strong); }
.login-field > svg { width: 18px; height: 18px; justify-self: center; }
.login-field input {
  min-width: 0;
  height: 100%;
  padding: 0;
  border: 0;
  outline: none;
  color: var(--text);
  caret-color: var(--accent);
  background: transparent;
  font-size: 1rem;
  letter-spacing: .02em;
}
.login-field input::placeholder { color: var(--faint); opacity: .82; }
.login-field input:-webkit-autofill {
  -webkit-text-fill-color: var(--text);
  transition: background-color 9999s ease-out;
}

.field-action {
  width: 48px;
  height: 48px;
  padding: 0;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 14px;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
  transition: color .2s ease, background .2s ease, transform .2s ease;
}
.field-action:hover { color: var(--accent-bright); background: var(--surface-soft); }
.field-action:active { transform: scale(.92); }
.field-action svg { width: 19px; height: 19px; }
.field-action .eye-closed { display: none; }
.field-action[aria-pressed="true"] .eye-open { display: none; }
.field-action[aria-pressed="true"] .eye-closed { display: block; }
#login-form[aria-busy="true"] .login-field { opacity: .58; }

.form-error {
  min-height: 17px;
  margin: 11px 2px 0;
  color: var(--danger);
  text-align: center;
  font-size: .68rem;
  line-height: 1.45;
}
.form-error:empty { min-height: 0; margin: 0; }

.login-submit {
  position: relative;
  width: 60px;
  height: 60px;
  margin: 15px auto 0;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--accent-bright);
  background: linear-gradient(145deg, var(--accent-dim), var(--violet-dim));
  box-shadow: 0 13px 36px color-mix(in srgb, var(--accent) 18%, transparent), inset 0 1px rgba(255, 255, 255, .08);
  transition: transform .24s cubic-bezier(.2,.8,.2,1), box-shadow .24s ease, border-color .24s ease;
}
.login-submit:hover { transform: translateY(-2px) scale(1.03); border-color: var(--accent); }
.login-submit:active { transform: scale(.94); }
.login-submit:disabled { cursor: default; opacity: .3; transform: none; }
.login-submit[data-state="ready"] { animation: login-enter-breathe 3.4s ease-in-out infinite; }
.login-submit[data-state="loading"] { cursor: wait; opacity: 1; animation: none; }
.login-submit-arrow { width: 21px; height: 21px; transition: opacity .2s ease, transform .2s ease; }
.login-submit-loader {
  position: absolute;
  width: 21px;
  height: 21px;
  opacity: 0;
  border: 2px solid color-mix(in srgb, var(--accent) 25%, transparent);
  border-top-color: var(--accent-bright);
  border-radius: 50%;
}
.login-submit[data-state="loading"] .login-submit-arrow { opacity: 0; transform: scale(.6); }
.login-submit[data-state="loading"] .login-submit-loader { opacity: 1; animation: spin .8s linear infinite; }

.login-rejected { animation: login-reject .38s cubic-bezier(.36,.07,.19,.97); }

.welcome-view {
  position: fixed;
  z-index: 100;
  inset: 0;
  display: grid;
  place-items: center;
  overflow: hidden;
  color: var(--text);
  background: color-mix(in srgb, var(--bg-deep) 83%, transparent);
  backdrop-filter: blur(28px) saturate(130%);
  -webkit-backdrop-filter: blur(28px) saturate(130%);
  opacity: 1;
  transition: opacity .46s cubic-bezier(.25,.8,.25,1), filter .46s ease, transform .46s cubic-bezier(.25,.8,.25,1);
}
.welcome-view::before {
  position: absolute;
  width: min(118vw, 680px);
  aspect-ratio: 1;
  content: "";
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 35%, var(--accent-dim), transparent 48%),
    radial-gradient(circle at 65% 64%, var(--violet-dim), transparent 52%);
  filter: blur(12px);
  animation: welcome-aura 2.4s ease-in-out both;
}
.welcome-content { position: relative; display: grid; place-items: center; text-align: center; }
.welcome-mark { position: relative; width: 142px; height: 142px; display: grid; place-items: center; animation: welcome-mark-in .72s cubic-bezier(.17,.84,.28,1.2) both; }
.welcome-mark img { position: relative; z-index: 2; width: 88px; height: 88px; border-radius: 25px; box-shadow: 0 22px 66px color-mix(in srgb, #00867f 34%, transparent); }
.welcome-ring { position: absolute; border: 1px solid var(--line-strong); border-radius: 50%; }
.welcome-ring.ring-outer { inset: 0; animation: welcome-ring-out 1.25s cubic-bezier(.2,.8,.2,1) both; }
.welcome-ring.ring-inner { inset: 17px; border-color: color-mix(in srgb, var(--violet) 42%, transparent); animation: welcome-ring-out 1.25s .08s cubic-bezier(.2,.8,.2,1) both; }
.welcome-content h1 {
  margin: 31px 0 0;
  font-size: clamp(2.4rem, 11vw, 4.2rem);
  font-weight: 430;
  letter-spacing: .18em;
  text-indent: .18em;
  animation: welcome-copy-in .72s .2s cubic-bezier(.2,.8,.2,1) both;
}
.welcome-sweep { width: 76px; height: 2px; margin-top: 28px; overflow: hidden; border-radius: 99px; background: var(--line); opacity: .8; }
.welcome-sweep i { display: block; width: 46%; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--accent), var(--violet)); box-shadow: 0 0 12px var(--accent); animation: welcome-sweep 1.08s .28s cubic-bezier(.45,0,.55,1) infinite; }
.activation-revealing .welcome-view { opacity: 0; filter: blur(12px); transform: scale(1.08); pointer-events: none; }
.welcoming .app-header { opacity: 0; transform: translateY(-18px); pointer-events: none; }
.app-header { transition: opacity .36s ease, transform .46s cubic-bezier(.2,.8,.2,1), border-color .22s ease, background .22s ease; }
.activation-revealing .workspace { animation: workspace-reveal .58s cubic-bezier(.2,.8,.2,1) both; }

.workspace {
  position: relative;
  height: calc(100dvh - var(--header-height) - env(safe-area-inset-top));
}

.history-drawer {
  position: fixed;
  z-index: 70;
  top: calc(var(--header-height) + env(safe-area-inset-top) + 8px);
  bottom: calc(8px + env(safe-area-inset-bottom));
  left: max(8px, env(safe-area-inset-left));
  width: min(84vw, 306px);
  padding: 18px 13px 14px;
  display: grid;
  grid-template-rows: auto auto 1fr;
  gap: 13px;
  border-radius: 24px;
  transform: translateX(calc(-100% - 22px));
  opacity: 0;
  transition: transform .36s cubic-bezier(.2,.8,.2,1), opacity .25s ease;
}
.drawer-open .history-drawer { transform: translateX(0); opacity: 1; }
.drawer-scrim {
  position: fixed;
  z-index: 65;
  inset: calc(var(--header-height) + env(safe-area-inset-top)) 0 0;
  display: block;
  visibility: hidden;
  opacity: 0;
  background: rgba(0, 5, 8, .48);
  backdrop-filter: blur(6px);
  transition: opacity .25s ease, visibility .25s;
}
.drawer-open .drawer-scrim { visibility: visible; opacity: 1; }

.history-head { min-height: 48px; padding: 0 2px 0 7px; }
.history-head h2 { font-size: 1rem; }
.history-head h2 span { margin-left: 4px; color: var(--faint); font-size: .68rem; font-weight: 550; }
.history-close { width: 48px; height: 48px; min-width: 48px; }

.new-conversation {
  width: 100%;
  min-height: 50px;
  padding: 0 13px;
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--line-strong);
  border-radius: 13px;
  color: var(--accent-bright);
  background: linear-gradient(110deg, var(--accent-dim), var(--violet-dim));
  font-size: .75rem;
  font-weight: 700;
}
.new-conversation svg { width: 17px; height: 17px; }

.history-list { min-height: 0; overflow: auto; display: grid; align-content: start; gap: 5px; scrollbar-width: thin; }
.history-item {
  position: relative;
  width: 100%;
  min-height: 50px;
  padding: 12px 30px 12px 12px;
  display: grid;
  align-items: center;
  text-align: left;
  border: 1px solid transparent;
  border-radius: 13px;
  color: var(--text-soft);
  background: transparent;
  transition: background .2s ease, border-color .2s ease, color .2s ease;
}
.history-item:hover { background: var(--surface-soft); color: var(--text); }
.history-item[data-active="true"] { border-color: var(--line); color: var(--text); background: var(--accent-dim); }
.history-title { overflow: hidden; font-size: .76rem; font-weight: 650; text-overflow: ellipsis; white-space: nowrap; }
.history-dot { position: absolute; right: 13px; width: 6px; height: 6px; border-radius: 50%; background: var(--line-strong); }
.history-item[data-active="true"] .history-dot { background: var(--accent); box-shadow: 0 0 9px var(--accent); }
.history-item[data-running="true"] .history-dot { animation: node-pulse 1.2s ease-in-out infinite; }

.chat-stage {
  position: relative;
  height: 100%;
  overflow: hidden;
  border: 0;
  border-radius: 0;
  background: color-mix(in srgb, var(--surface) 60%, transparent);
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.context-bar {
  position: absolute;
  z-index: 10;
  top: 0;
  right: 0;
  left: 0;
  height: 66px;
  padding: 0 max(18px, env(safe-area-inset-right)) 0 max(18px, env(safe-area-inset-left));
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface-strong) 82%, transparent);
  backdrop-filter: blur(22px);
}
.factory-context { gap: 10px; min-width: 0; }
.factory-monogram {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
  border: 1px solid var(--line-strong);
  border-radius: 11px;
  color: var(--accent-bright);
  background: var(--accent-dim);
  font-size: .72rem;
  font-weight: 800;
}
.factory-monogram svg { width: 18px; height: 18px; }
.factory-context p { max-width: 58vw; margin: 0; overflow: hidden; font-size: .79rem; font-weight: 720; text-overflow: ellipsis; white-space: nowrap; }
.factory-live { width: 6px; height: 6px; flex: 0 0 6px; border-radius: 50%; background: var(--success); box-shadow: 0 0 8px var(--success); }

.conversation {
  height: 100%;
  overflow: auto;
  overscroll-behavior: contain;
  padding: 94px max(16px, env(safe-area-inset-right)) calc(var(--composer-height) + 48px + env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--line-strong) transparent;
}

.empty-conversation {
  width: min(100%, 580px);
  min-height: calc(100% - 18px);
  margin: 0 auto;
  display: grid;
  place-items: center;
  align-content: center;
  text-align: center;
}
.question-orbit { position: relative; width: 104px; height: 104px; margin-bottom: 24px; }
.orbit-ring { position: absolute; inset: 0; border: 1px solid var(--line-strong); border-radius: 50%; }
.ring-one { animation: orbit-one 9s linear infinite; }
.ring-one::before, .ring-two::before {
  position: absolute;
  top: -3px;
  left: 50%;
  width: 6px;
  height: 6px;
  content: "";
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
}
.ring-two { inset: 13px; border-color: color-mix(in srgb, var(--violet) 45%, transparent); animation: orbit-two 6.5s linear infinite; }
.ring-two::before { background: var(--violet); box-shadow: 0 0 12px var(--violet); }
.orbit-core {
  position: absolute;
  inset: 28px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--accent-bright);
  background: radial-gradient(circle, var(--accent-dim), transparent 70%);
  box-shadow: 0 0 45px var(--accent-dim);
  font: 350 1.7rem/1 ui-monospace, monospace;
  animation: core-breathe 3.2s ease-in-out infinite;
}
.empty-conversation h2 { margin-top: 3px; font-size: clamp(2rem, 8vw, 3.4rem); letter-spacing: -.06em; }
.prompt-chips { margin-top: 25px; display: flex; flex-wrap: wrap; justify-content: center; gap: 9px; }
.prompt-chip {
  min-height: 46px;
  padding: 0 17px;
  border: 1px solid var(--line);
  border-radius: 99px;
  color: var(--text-soft);
  background: var(--surface-soft);
  font-size: .7rem;
  transition: color .2s ease, border-color .2s ease, background .2s ease, transform .2s ease;
}
.prompt-chip:hover { border-color: var(--line-strong); color: var(--accent-bright); background: var(--accent-dim); transform: translateY(-2px); }

.turn { width: min(100%, 760px); margin: 0 auto 42px; display: grid; gap: 18px; animation: turn-enter .5s cubic-bezier(.2,.8,.2,1) both; }
.question-message { justify-self: end; max-width: min(92%, 590px); padding: 14px 16px; border: 1px solid var(--line); border-radius: 18px 18px 5px 18px; background: linear-gradient(125deg, var(--accent-dim), var(--violet-dim)); }
.question-copy { margin: 0; white-space: pre-wrap; font-size: .88rem; line-height: 1.65; }

.agent-trace {
  position: relative;
  overflow: hidden;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: linear-gradient(145deg, var(--surface-soft), transparent 62%);
}
.agent-trace::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 54%;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: .65;
}
.agent-trace[data-state="running"]::after {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
  background: linear-gradient(105deg, transparent 30%, rgba(139, 233, 255, .065) 48%, transparent 66%);
  transform: translateX(-130%);
  animation: trace-scan 1.9s cubic-bezier(.45,0,.55,1) infinite;
}
.trace-header { margin-bottom: 18px; }
.trace-title { min-width: 0; gap: 11px; }
.agent-glyph, .answer-mark {
  display: grid;
  place-items: center;
  width: 37px;
  height: 37px;
  flex: 0 0 37px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  color: var(--accent-bright);
  background: var(--accent-dim);
  box-shadow: 0 0 24px var(--accent-dim);
  font: 750 .6rem/1 ui-monospace, monospace;
  letter-spacing: .05em;
}
.trace-header h2 { font-size: .96rem; }
.trace-status { padding: 6px 9px; border: 1px solid var(--line); border-radius: 99px; color: var(--muted); font-size: .58rem; }
.trace-status[data-state="running"] { color: var(--accent); background: var(--accent-dim); animation: status-breathe 1.65s ease-in-out infinite; }
.trace-status[data-state="failed"] { color: var(--danger); }

.trace-steps { position: relative; margin: 0; padding: 0; display: grid; list-style: none; }
.trace-steps::before { position: absolute; top: 11px; bottom: 11px; left: 5px; width: 1px; content: ""; background: linear-gradient(var(--accent), var(--line), var(--violet)); opacity: .55; }
.trace-step { position: relative; min-width: 0; padding: 0 0 17px 24px; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 9px; align-items: start; }
.trace-step:last-child { padding-bottom: 0; }
.step-node { position: absolute; z-index: 1; top: 5px; left: 0; width: 11px; height: 11px; border: 2px solid var(--surface-solid); border-radius: 50%; background: var(--success); box-shadow: 0 0 9px color-mix(in srgb, var(--success) 65%, transparent); }
.trace-step[data-state="running"] .step-node { background: var(--accent); animation: node-pulse 1.2s ease-in-out infinite; }
.trace-step[data-state="failed"] .step-node { background: var(--danger); box-shadow: 0 0 9px color-mix(in srgb, var(--danger) 65%, transparent); }
.step-copy { min-width: 0; display: grid; gap: 4px; }
.step-copy strong { font-size: .73rem; font-weight: 680; }
.step-copy span { color: var(--muted); font-size: .63rem; line-height: 1.5; }
.step-state { padding-top: 2px; color: var(--faint); font-size: .57rem; }

.reasoning-summary { margin-top: 17px; padding: 13px 14px; border-left: 2px solid var(--violet); border-radius: 4px 12px 12px 4px; background: var(--violet-dim); }
.reasoning-label { color: var(--violet); font: 700 .57rem/1 ui-monospace, monospace; letter-spacing: .12em; }
.reasoning-summary p { margin: 7px 0 0; color: var(--text-soft); font-size: .69rem; line-height: 1.6; }

.trace-meta { margin-top: 15px; display: flex; flex-wrap: wrap; gap: 7px; }
.metric-pill { min-width: 73px; padding: 8px 10px; display: grid; gap: 2px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface-soft); }
.metric-pill strong { color: var(--text-soft); font: 650 .62rem/1.2 ui-monospace, monospace; }
.metric-pill small { color: var(--faint); font-size: .5rem; }
.trace-error { margin: 0; padding: 14px; border: 1px solid color-mix(in srgb, var(--danger) 28%, transparent); border-radius: 12px; color: var(--danger); background: color-mix(in srgb, var(--danger) 8%, transparent); font-size: .72rem; }

.answer-message { padding: 3px 2px 0; }
.answer-head { gap: 10px; margin-bottom: 11px; }
.answer-mark { width: 32px; height: 32px; flex-basis: 32px; color: var(--violet); border-color: color-mix(in srgb, var(--violet) 34%, transparent); background: var(--violet-dim); box-shadow: 0 0 20px var(--violet-dim); }
.answer-title { margin: 0; color: var(--violet); font-size: .72rem; font-weight: 720; letter-spacing: .08em; }
.answer-copy { margin: 0; white-space: pre-wrap; color: var(--text); font-size: .94rem; line-height: 1.82; }
.key-facts { margin-top: 17px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.fact { min-width: 0; padding: 12px; display: grid; gap: 5px; border: 1px solid var(--line); border-radius: 13px; background: var(--surface-soft); }
.fact-label { color: var(--muted); font-size: .58rem; }
.fact-value { overflow: hidden; color: var(--accent-bright); font: 650 1.03rem/1.2 ui-monospace, monospace; text-overflow: ellipsis; }
.chart { margin-top: 17px; padding: 15px; display: grid; gap: 12px; border: 1px solid var(--line); border-radius: 15px; background: var(--surface-soft); }
.chart-title { margin: 0 0 2px; font-size: .69rem; font-weight: 680; }
.chart-empty { margin: 0; color: var(--muted); font-size: .68rem; }
.bar-row { display: grid; grid-template-columns: 22px 1fr; gap: 9px; align-items: center; }
.bar-rank { display: grid; place-items: center; width: 22px; height: 22px; border: 1px solid var(--line); border-radius: 8px; color: var(--faint); font: 650 .55rem/1 ui-monospace, monospace; }
.bar-body { min-width: 0; display: grid; gap: 6px; }
.bar-labels { display: flex; justify-content: space-between; gap: 9px; font-size: .62rem; }
.bar-name { overflow: hidden; color: var(--text-soft); text-overflow: ellipsis; white-space: nowrap; }
.bar-value { flex: 0 0 auto; color: var(--accent-bright); font-family: ui-monospace, monospace; }
.bar-track { height: 5px; overflow: hidden; border-radius: 99px; background: var(--line); }
.bar-fill { width: var(--bar-size); height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--accent), var(--violet)); box-shadow: 0 0 12px var(--accent-dim); animation: bar-grow .7s cubic-bezier(.2,.8,.2,1) both; transform-origin: left; }
.answer-foot { margin-top: 12px; display: flex; flex-wrap: wrap; gap: 5px 14px; color: var(--faint); font-size: .55rem; }

.composer-dock {
  position: absolute;
  z-index: 20;
  right: 0;
  bottom: 0;
  left: 0;
  min-height: calc(var(--composer-height) + env(safe-area-inset-bottom));
  padding: 13px max(14px, env(safe-area-inset-right)) calc(13px + env(safe-area-inset-bottom)) max(14px, env(safe-area-inset-left));
  background: linear-gradient(0deg, var(--surface-strong) 72%, transparent);
  backdrop-filter: blur(22px);
}
.composer { width: min(100%, 760px); margin: 0 auto; }
.composer-input {
  min-height: 72px;
  padding: 10px 10px 10px 17px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 8px;
  border: 1px solid var(--line-strong);
  border-radius: 20px;
  background: var(--surface-strong);
  box-shadow: 0 16px 48px rgba(0, 0, 0, .18), 0 0 30px var(--accent-dim), inset 0 1px rgba(255,255,255,.035);
  transition: border-color .2s ease, box-shadow .2s ease;
}
.composer-input:focus-within { border-color: color-mix(in srgb, var(--accent) 52%, transparent); box-shadow: 0 16px 48px rgba(0,0,0,.2), 0 0 44px var(--accent-dim); }
.composer textarea {
  width: 100%;
  min-height: 28px;
  max-height: 132px;
  padding: 3px 0 4px;
  resize: none;
  overflow-y: auto;
  border: 0;
  outline: none;
  color: var(--text);
  background: transparent;
  font-size: .83rem;
  line-height: 1.55;
}
.composer textarea::placeholder { color: var(--faint); }
.composer textarea:disabled { opacity: .56; }
.composer-tools { display: flex; gap: 7px; }
.voice-control, .send-control { position: relative; width: 50px; height: 50px; display: grid; place-items: center; border-radius: 16px; }
.voice-control { border: 1px solid var(--line); color: var(--text-soft); background: var(--surface-soft); }
.send-control { color: #061317; background: linear-gradient(135deg, var(--accent-bright), var(--accent)); box-shadow: 0 0 18px var(--accent-dim); }
[data-theme="light"] .send-control { color: white; background: linear-gradient(135deg, #00758f, #00a5c4); }
.send-control svg { width: 20px; height: 20px; transition: opacity .2s ease, transform .2s ease; }
.send-control:hover svg { transform: translateX(2px); }
.voice-control:disabled, .send-control:disabled { cursor: default; opacity: .34; }
.voice-control[aria-busy="true"], .send-control[aria-busy="true"] { cursor: wait; opacity: 1; }
.voice-control[data-state="unsupported"] { display: none; }
.voice-waves { height: 17px; display: flex; align-items: center; gap: 2px; }
.voice-waves i { width: 2px; height: 5px; border-radius: 99px; background: currentColor; }
.voice-waves i:nth-child(2), .voice-waves i:nth-child(4) { height: 11px; }
.voice-waves i:nth-child(3) { height: 16px; }
.voice-control[data-state="listening"] { color: var(--accent); border-color: var(--line-strong); background: var(--accent-dim); box-shadow: 0 0 18px var(--accent-dim); }
.voice-control[data-state="listening"] i { animation: voice-wave .75s ease-in-out infinite alternate; }
.voice-control[data-state="listening"] i:nth-child(2) { animation-delay: -.2s; }
.voice-control[data-state="listening"] i:nth-child(3) { animation-delay: -.4s; }
.voice-control[data-state="listening"] i:nth-child(4) { animation-delay: -.15s; }
.voice-control[data-state="listening"] i:nth-child(5) { animation-delay: -.33s; }
.voice-control[data-state="installing"],
.voice-control[data-state="initializing"],
.voice-control[data-state="transcribing"] {
  opacity: 1;
  color: var(--accent);
  border-color: var(--line-strong);
  background: var(--accent-dim);
}
.voice-control[data-state="installing"]::before {
  position: absolute;
  inset: 4px;
  padding: 1px;
  content: "";
  border-radius: 13px;
  background: conic-gradient(var(--accent) var(--speech-progress), var(--line) 0);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
}
.voice-control[data-state="denied"], .voice-control[data-state="error"] {
  color: var(--danger);
  border-color: color-mix(in srgb, var(--danger) 42%, transparent);
  background: color-mix(in srgb, var(--danger) 9%, transparent);
  animation: control-nudge .35s ease;
}
.voice-control[data-state="installing"] .voice-waves,
.voice-control[data-state="initializing"] .voice-waves,
.voice-control[data-state="transcribing"] .voice-waves {
  width: 18px;
  height: 18px;
  display: block;
  border: 2px solid color-mix(in srgb, var(--accent) 22%, transparent);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .78s linear infinite;
}
.voice-control[data-state="installing"] .voice-waves i,
.voice-control[data-state="initializing"] .voice-waves i,
.voice-control[data-state="transcribing"] .voice-waves i { display: none; }
.send-loader { position: absolute; width: 20px; height: 20px; opacity: 0; border: 2px solid rgba(4, 25, 31, .25); border-top-color: currentColor; border-radius: 50%; }
.send-control[data-state="loading"] svg { opacity: 0; }
.send-control[data-state="loading"] .send-loader { opacity: 1; animation: spin .8s linear infinite; }

.feedback-toast {
  position: fixed;
  z-index: 120;
  right: 20px;
  bottom: calc(var(--composer-height) + env(safe-area-inset-bottom) + 24px);
  left: 20px;
  width: fit-content;
  max-width: min(82vw, 360px);
  margin: auto;
  padding: 11px 15px;
  border: 1px solid var(--line);
  border-radius: 99px;
  color: var(--text-soft);
  background: var(--surface-strong);
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
  font-size: .72rem;
  opacity: 0;
  transform: translateY(12px) scale(.96);
  pointer-events: none;
  transition: opacity .24s ease, transform .32s cubic-bezier(.2,.8,.2,1);
}
.feedback-toast[data-visible="true"] { opacity: 1; transform: translateY(0) scale(1); }

.hidden { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

@keyframes login-breathe { 50% { opacity: 1; transform: scale(1.09) rotate(4deg); } }
@keyframes login-enter-breathe { 50% { box-shadow: 0 16px 44px color-mix(in srgb, var(--accent) 26%, transparent), inset 0 1px rgba(255, 255, 255, .08); } }
@keyframes login-reject { 20%, 60% { transform: translateX(-7px); } 40%, 80% { transform: translateX(7px); } }
@keyframes welcome-aura { from { opacity: 0; transform: scale(.72) rotate(-8deg); } 55% { opacity: 1; } to { transform: scale(1.08) rotate(3deg); } }
@keyframes welcome-mark-in { from { opacity: 0; filter: blur(12px); transform: scale(.68); } to { opacity: 1; filter: blur(0); transform: scale(1); } }
@keyframes welcome-ring-out { from { opacity: 0; transform: scale(.55); } 55% { opacity: .85; } to { opacity: .22; transform: scale(1.28); } }
@keyframes welcome-copy-in { from { opacity: 0; filter: blur(10px); transform: translateY(14px); } to { opacity: 1; filter: blur(0); transform: translateY(0); } }
@keyframes welcome-sweep { from { transform: translateX(-120%); } to { transform: translateX(250%); } }
@keyframes workspace-reveal { from { opacity: 0; filter: blur(8px); transform: scale(.975); } to { opacity: 1; filter: blur(0); transform: scale(1); } }
@keyframes orbit-one { to { transform: rotate(360deg) scaleX(.88); } }
@keyframes orbit-two { to { transform: rotate(-360deg) scaleY(.86); } }
@keyframes core-breathe { 50% { box-shadow: 0 0 65px var(--accent-dim); transform: scale(1.08); } }
@keyframes turn-enter { from { opacity: 0; transform: translateY(18px); } }
@keyframes status-breathe { 50% { box-shadow: 0 0 18px var(--accent-dim); } }
@keyframes node-pulse { 50% { transform: scale(1.35); box-shadow: 0 0 15px var(--accent); } }
@keyframes trace-scan { to { transform: translateX(130%); } }
@keyframes control-nudge { 30% { transform: translateX(-3px); } 65% { transform: translateX(3px); } }
@keyframes bar-grow { from { transform: scaleX(0); } }
@keyframes voice-wave { to { transform: scaleY(.35); } }
@keyframes spin { to { transform: rotate(360deg); } }

@media (min-width: 430px) {
  .agent-trace { padding: 21px; }
}

@media (max-width: 429px) {
  .authenticated .brand-name { display: none; }
  .authenticated .header-leading { gap: 2px; }
}

@media (min-width: 700px) {
  :root { --header-height: 68px; --composer-height: 110px; }
  .app-header { padding-right: 22px; padding-left: 22px; grid-template-columns: 1fr auto; }
  .context-bar { padding-right: 28px; padding-left: 28px; }
  .conversation { padding-right: 28px; padding-left: 28px; }
  .key-facts { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .composer-dock { padding-right: 28px; padding-left: 28px; }
}

@media (min-width: 901px) {
  body { padding: 8px; }
  .app-header { right: 8px; left: 8px; border: 1px solid var(--line); border-radius: 18px; }
  .app-frame { padding-top: calc(var(--header-height) + env(safe-area-inset-top) + 8px); }
  .login-view { height: calc(100dvh - var(--header-height) - env(safe-area-inset-top) - 16px); }
  .workspace {
    width: min(100%, 1500px);
    height: calc(100dvh - var(--header-height) - env(safe-area-inset-top) - 24px);
    margin: 8px auto;
    display: grid;
    grid-template-columns: 272px minmax(0, 1fr);
    gap: 8px;
    transition: grid-template-columns .36s cubic-bezier(.2,.8,.2,1);
  }
  .workspace.history-collapsed { grid-template-columns: 0 minmax(0, 1fr); }
  .history-drawer {
    position: relative;
    z-index: 1;
    inset: auto;
    width: auto;
    min-width: 0;
    height: 100%;
    transform: none;
    opacity: 1;
    border-radius: 20px;
    transition: opacity .2s ease, padding .3s ease, border-width .3s ease;
  }
  .history-collapsed .history-drawer { overflow: hidden; padding-right: 0; padding-left: 0; opacity: 0; border-width: 0; pointer-events: none; }
  .history-close { display: none; }
  .drawer-scrim { display: none; }
  .chat-stage { border: 1px solid var(--line); border-radius: 20px; box-shadow: var(--shadow); }
  .context-bar { border-radius: 20px 20px 0 0; }
}

@media (min-width: 1280px) {
  .workspace { grid-template-columns: 294px minmax(0, 1fr); }
  .conversation { padding-right: 42px; padding-left: 42px; }
  .context-bar { padding-right: 42px; padding-left: 42px; }
  .composer-dock { padding-right: 42px; padding-left: 42px; }
}

@media (max-height: 700px) and (max-width: 699px) {
  .login-view { place-items: start center; padding-top: 28px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  #login-form { transform: none; }
}