@layer reset, tokens, base, layout, components, states, responsive, motion;

@property --orb-angle {
  syntax: "<angle>";
  inherits: false;
  initial-value: 0deg;
}

@layer reset {
  *,
  *::before,
  *::after {
    box-sizing: border-box;
  }

  html {
    min-width: 0;
    min-height: 100%;
    scroll-behavior: smooth;
  }

  body,
  h1,
  h2,
  p {
    margin: 0;
  }

  button,
  input,
  summary {
    color: inherit;
    font: inherit;
  }

  button {
    border: 0;
  }
}

@layer tokens {
  :root {
    color-scheme: dark;
    --night: oklch(13% 0.025 258);
    --night-deep: oklch(9% 0.02 260);
    --glass: oklch(23% 0.03 258 / 58%);
    --glass-deep: oklch(18% 0.025 258 / 78%);
    --white: oklch(97% 0.01 242);
    --white-soft: oklch(78% 0.025 246);
    --white-faint: oklch(64% 0.025 250);
    --cyan: oklch(84% 0.16 190);
    --cyan-deep: oklch(62% 0.2 220);
    --violet: oklch(66% 0.24 300);
    --rose: oklch(70% 0.2 10);
    --amber: oklch(83% 0.17 83);
    --danger: oklch(66% 0.23 25);
    --line: oklch(95% 0.01 250 / 13%);
    --line-strong: oklch(95% 0.01 250 / 25%);
    --sans: "Aptos", "Yu Gothic UI", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
    --display: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;
    --mono: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  }
}

@layer base {
  body {
    min-height: 100vh;
    overflow-x: hidden;
    background: var(--night-deep);
    color: var(--white);
    font-family: var(--sans);
    line-height: 1.6;
    text-rendering: optimizeLegibility;
  }

  button,
  a,
  label,
  summary {
    -webkit-tap-highlight-color: transparent;
  }

  button:not(:disabled),
  a,
  label,
  summary {
    cursor: pointer;
  }

  button:focus-visible,
  a:focus-visible,
  summary:focus-visible,
  input:focus-visible + label {
    outline: 2px solid var(--cyan);
    outline-offset: 5px;
  }

  ::selection {
    background: var(--cyan);
    color: var(--night-deep);
  }

  .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }
}

@layer layout {
  .ambient-shell {
    display: grid;
    isolation: isolate;
    position: relative;
    grid-template-rows: auto 1fr auto;
    min-height: 100svh;
    overflow: hidden;
    background:
      radial-gradient(circle at 50% 38%, oklch(22% 0.065 254 / 68%), transparent 46%),
      linear-gradient(152deg, var(--night) 0 42%, var(--night-deep) 100%);
  }

  .topline,
  .bottomline {
    position: relative;
    z-index: 20;
  }

  .topline {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    min-height: 76px;
    padding: 16px clamp(20px, 4vw, 64px);
    border-bottom: 1px solid var(--line);
    background: linear-gradient(to bottom, oklch(12% 0.025 258 / 86%), transparent);
    backdrop-filter: blur(18px);
  }

  .conversation-stage {
    display: grid;
    position: relative;
    z-index: 2;
    grid-template-columns: minmax(0, 1fr) minmax(280px, 340px);
    gap: clamp(28px, 4vw, 72px);
    width: min(1440px, 100%);
    margin-inline: auto;
    padding: clamp(28px, 4vw, 72px) clamp(20px, 5vw, 78px);
  }

  .voice-space {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: repeat(5, auto);
    align-self: start;
    align-content: start;
    align-items: center;
    width: 100%;
    min-width: 0;
    min-height: 0;
  }

  .conversation-stage--passkey {
    grid-template-columns: minmax(0, 1fr);
    width: min(880px, 100%);
  }

  .conversation-stage--passkey .utility-dock {
    display: none;
  }

  .voice-space--passkey {
    grid-template-rows: auto auto;
    align-content: start;
    min-height: 0;
  }

  .utility-dock {
    display: grid;
    align-self: start;
    gap: 14px;
    min-width: 0;
  }

  .bottomline {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    padding: 12px clamp(20px, 4vw, 64px);
    border-top: 1px solid var(--line);
    color: var(--white-faint);
    font: 600 0.58rem/1.2 var(--mono);
    letter-spacing: 0.12em;
  }
}

@layer components {
  .aurora,
  .noise-field {
    position: absolute;
    z-index: 0;
    pointer-events: none;
  }

  .aurora {
    width: min(66vw, 960px);
    aspect-ratio: 1;
    border-radius: 50%;
    filter: blur(90px);
    opacity: 0.16;
  }

  .aurora--one {
    top: -42vw;
    right: -14vw;
    background: var(--violet);
  }

  .aurora--two {
    bottom: -48vw;
    left: -24vw;
    background: var(--cyan-deep);
  }

  .noise-field {
    inset: 0;
    opacity: 0.22;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.16'/%3E%3C/svg%3E");
    mix-blend-mode: soft-light;
  }

  .identity {
    display: inline-flex;
    align-items: center;
    gap: 13px;
    color: var(--white);
    text-decoration: none;
  }

  .identity__mark {
    display: grid;
    width: 38px;
    aspect-ratio: 1;
    place-items: center;
    border: 1px solid var(--line-strong);
    border-radius: 50%;
    background:
      radial-gradient(circle at 34% 25%, var(--cyan), transparent 28%),
      linear-gradient(145deg, var(--violet), var(--cyan-deep));
    box-shadow: 0 0 28px oklch(70% 0.2 220 / 24%);
    color: var(--night-deep);
    font: 900 0.9rem/1 var(--mono);
  }

  .identity__type {
    display: grid;
    gap: 3px;
  }

  .identity__type strong {
    font: 780 0.84rem/1 var(--mono);
    letter-spacing: 0.24em;
  }

  .identity__type small {
    color: var(--white-faint);
    font: 600 0.48rem/1 var(--mono);
    letter-spacing: 0.12em;
  }

  .cloud-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 11px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--glass-deep);
    color: var(--white-soft);
    font: 650 0.57rem/1 var(--mono);
    letter-spacing: 0.08em;
    backdrop-filter: blur(12px);
  }

  .cloud-pill__dot {
    width: 6px;
    aspect-ratio: 1;
    border-radius: 50%;
    background: currentColor;
    box-shadow: 0 0 12px currentColor;
  }

  .cloud-pill.is-ready {
    color: var(--cyan);
  }

  .cloud-pill.is-pending {
    color: var(--amber);
  }

  .cloud-pill.is-offline {
    color: var(--danger);
  }

  .context-line {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    min-height: 30px;
  }

  .passkey-setup-status {
    display: inline-flex;
    flex: 0 0 0;
    min-width: 0;
  }

  .passkey-setup-status:not(:empty) {
    flex-basis: 100%;
    justify-content: center;
    color: var(--cyan);
    font: 650 0.68rem/1.55 var(--mono);
    letter-spacing: 0.04em;
    overflow-wrap: anywhere;
    text-align: center;
  }

  .context-chip,
  .coach-chip,
  .research-status-chip {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 6px 10px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: oklch(20% 0.035 258 / 48%);
    color: var(--cyan);
    font: 650 0.68rem/1.2 var(--mono);
    letter-spacing: 0.09em;
    backdrop-filter: blur(14px);
  }

  .context-chip--quiet {
    color: var(--white-faint);
  }

  .coach-chip {
    border-color: oklch(78% 0.14 204 / 38%);
    background: oklch(24% 0.055 222 / 54%);
    color: var(--cyan);
  }

  .research-status-chip--unavailable {
    border-color: oklch(66% 0.23 25 / 42%);
    color: var(--danger);
  }

  .orb-field {
    display: grid;
    position: relative;
    width: min(42vw, 360px);
    min-width: 270px;
    aspect-ratio: 1;
    place-self: center;
    place-items: center;
  }

  .orb-orbit {
    position: absolute;
    border: 1px solid var(--line);
    border-radius: 50%;
    pointer-events: none;
  }

  .orb-orbit::before,
  .orb-orbit::after {
    content: "";
    position: absolute;
    top: 50%;
    width: 6px;
    aspect-ratio: 1;
    border-radius: 50%;
    background: var(--white-faint);
    box-shadow: 0 0 12px currentColor;
  }

  .orb-orbit::before {
    left: -3px;
  }

  .orb-orbit::after {
    right: -3px;
  }

  .orb-orbit--outer {
    inset: 2%;
  }

  .orb-orbit--inner {
    inset: 14%;
    border-style: dashed;
    opacity: 0.55;
  }

  .voice-orb {
    display: grid;
    position: relative;
    width: 58%;
    aspect-ratio: 1;
    padding: 0;
    place-items: center;
    border-radius: 50%;
    background: transparent;
    filter: drop-shadow(0 28px 55px oklch(5% 0.02 260 / 76%));
  }

  .voice-orb:disabled {
    cursor: default;
  }

  .voice-orb::before,
  .voice-orb::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
  }

  .voice-orb::before {
    inset: -9%;
    border: 1px solid oklch(86% 0.13 205 / 28%);
    box-shadow:
      inset 0 0 40px oklch(74% 0.16 214 / 13%),
      0 0 70px oklch(68% 0.2 220 / 12%);
  }

  .voice-orb::after {
    inset: 8%;
    background: radial-gradient(circle, oklch(98% 0.01 220 / 22%), transparent 68%);
    filter: blur(12px);
  }

  .voice-orb__surface {
    display: grid;
    position: absolute;
    inset: 0;
    overflow: hidden;
    place-items: center;
    border: 1px solid oklch(94% 0.03 215 / 35%);
    border-radius: inherit;
    background:
      radial-gradient(circle at 31% 24%, oklch(98% 0.02 215 / 95%) 0 3%, transparent 24%),
      radial-gradient(circle at 58% 67%, var(--cyan) 0, transparent 42%),
      conic-gradient(
        from var(--orb-angle),
        var(--cyan-deep),
        var(--violet),
        var(--rose),
        var(--cyan-deep)
      );
    box-shadow:
      inset -25px -30px 55px oklch(25% 0.15 285 / 68%),
      inset 22px 18px 36px oklch(96% 0.06 196 / 38%),
      0 0 90px oklch(69% 0.19 221 / 23%);
  }

  .voice-orb__surface::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background:
      radial-gradient(circle at 65% 20%, transparent 0 22%, oklch(98% 0.03 210 / 12%) 38%, transparent 58%),
      linear-gradient(118deg, transparent 28%, oklch(98% 0.02 220 / 18%) 48%, transparent 68%);
    mix-blend-mode: screen;
  }

  .voice-orb__wave {
    display: flex;
    position: relative;
    z-index: 2;
    align-items: center;
    gap: 5px;
    height: 44px;
  }

  .voice-orb__wave i {
    width: 3px;
    height: 10px;
    border-radius: 999px;
    background: var(--night-deep);
    box-shadow: 0 0 10px oklch(98% 0.04 200 / 42%);
    opacity: 0.72;
  }

  .voice-orb__cta {
    position: absolute;
    z-index: 4;
    bottom: 16%;
    padding: 7px 11px;
    border: 1px solid oklch(14% 0.03 258 / 28%);
    border-radius: 999px;
    background: oklch(12% 0.03 258 / 72%);
    box-shadow: 0 8px 24px oklch(8% 0.02 258 / 28%);
    color: var(--white);
    font-size: 0.61rem;
    font-weight: 720;
    letter-spacing: 0.08em;
    backdrop-filter: blur(10px);
  }

  .voice-status {
    display: grid;
    width: 100%;
    min-width: 0;
    justify-items: center;
    margin-top: 4px;
    text-align: center;
  }

  .voice-status__eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    min-height: 20px;
    color: var(--cyan);
    font: 720 0.62rem/1 var(--mono);
    letter-spacing: 0.16em;
    text-transform: uppercase;
  }

  .live-dot {
    width: 7px;
    aspect-ratio: 1;
    border-radius: 50%;
    background: var(--rose);
    box-shadow: 0 0 14px var(--rose);
  }

  .voice-status h1 {
    width: min(100%, 20em);
    max-width: 100%;
    margin-top: 12px;
    font: 600 clamp(1.85rem, 3.2vw, 3.35rem)/1.38 var(--display);
    letter-spacing: 0.045em;
    overflow-wrap: anywhere;
    text-wrap: balance;
  }

  .voice-status__hint {
    width: min(100%, 54ch);
    max-width: 100%;
    margin-top: 14px;
    color: var(--white-soft);
    font-size: clamp(0.86rem, 1vw, 0.98rem);
    text-wrap: pretty;
  }

  .voice-status__transport {
    margin-top: 7px;
    color: var(--white-faint);
    font: 600 0.68rem/1.5 var(--mono);
    letter-spacing: 0.07em;
  }

  .voice-status__latency {
    margin-top: 9px;
    padding: 6px 10px;
    border: 1px solid oklch(80% 0.08 240 / 32%);
    border-radius: 999px;
    background: oklch(20% 0.04 255 / 46%);
    color: var(--white-soft);
    font: 650 0.68rem/1.4 var(--mono);
    letter-spacing: 0.04em;
  }

  .voice-status__latency.is-on-target {
    border-color: oklch(84% 0.14 170 / 46%);
    background: oklch(24% 0.06 170 / 38%);
    color: oklch(92% 0.08 170);
  }

  .answer-ownership-receipt {
    display: grid;
    justify-self: center;
    gap: 8px;
    width: min(520px, calc(100% - 24px));
    margin-top: 16px;
    padding: 14px 16px;
    border: 1px solid oklch(84% 0.14 170 / 42%);
    border-radius: 14px;
    background: oklch(22% 0.05 170 / 34%);
    box-shadow: 0 16px 42px oklch(5% 0.02 260 / 20%);
    backdrop-filter: blur(16px);
  }

  .answer-ownership-receipt__title {
    color: oklch(92% 0.08 170);
    font: 700 0.7rem/1.3 var(--mono);
    letter-spacing: 0.1em;
  }

  .answer-ownership-receipt ul {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
    list-style: none;
  }

  .answer-ownership-receipt li {
    padding: 8px 6px;
    border: 1px solid oklch(84% 0.14 170 / 22%);
    border-radius: 10px;
    color: var(--white-soft);
    font-size: 0.78rem;
    font-weight: 650;
    text-align: center;
  }

  @media (max-width: 620px) {
    .answer-ownership-receipt ul {
      grid-template-columns: 1fr;
    }
  }

  .turn-notice {
    display: grid;
    justify-self: center;
    gap: 4px;
    width: min(680px, calc(100% - 24px));
    margin-top: 14px;
    padding: 13px 16px;
    border: 1px solid oklch(83% 0.17 83 / 42%);
    border-radius: 13px;
    background: oklch(28% 0.07 82 / 32%);
    box-shadow: 0 16px 42px oklch(5% 0.02 260 / 22%);
    text-align: center;
    backdrop-filter: blur(16px);
  }

  .turn-notice strong {
    color: var(--amber);
    font-size: 0.92rem;
  }

  .turn-notice p {
    color: var(--white-soft);
    font-size: 0.82rem;
    line-height: 1.65;
    text-wrap: pretty;
  }

  .passkey-gate {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    width: 100%;
    min-width: 0;
    max-width: 100%;
    place-items: start center;
    margin-top: clamp(14px, 4svh, 40px);
  }

  .passkey-entry {
    width: 100%;
    min-width: 0;
    max-width: 580px;
    margin: 0;
    padding: clamp(18px, 3.5svh, 26px) clamp(16px, 4vw, 26px);
    border: 1px solid oklch(84% 0.16 190 / 32%);
    border-radius: 16px;
    background: oklch(20% 0.045 230 / 88%);
    box-shadow:
      0 24px 70px oklch(4% 0.02 260 / 46%),
      inset 0 1px 0 oklch(96% 0.02 210 / 10%);
    text-align: center;
    backdrop-filter: blur(18px);
  }

  .passkey-entry__eyebrow {
    color: var(--cyan);
    font: 700 0.58rem/1.4 var(--mono);
    letter-spacing: 0.14em;
  }

  .passkey-entry h1 {
    margin: 5px 0 0;
    font: 600 clamp(1.3rem, 4vw, 1.8rem)/1.4 var(--display);
    letter-spacing: 0.04em;
    text-wrap: balance;
  }

  .passkey-entry__error {
    margin-top: 10px;
    color: var(--amber);
    font-size: 0.74rem;
    line-height: 1.7;
    overflow-wrap: anywhere;
  }

  .passkey-entry__lead {
    margin-top: 9px;
    color: var(--white-soft);
    font-size: 0.76rem;
    line-height: 1.8;
    overflow-wrap: anywhere;
    text-wrap: balance;
  }

  .passkey-entry__actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    margin-top: 12px;
  }

  .passkey-entry__actions .control-button {
    justify-content: center;
    min-width: 0;
    min-height: 48px;
    font-size: 0.75rem;
    line-height: 1.45;
    text-align: center;
    white-space: normal;
  }

  .passkey-entry__warning,
  .passkey-entry__notice {
    margin-top: 11px;
    font-size: 0.75rem;
    line-height: 1.75;
    overflow-wrap: anywhere;
  }

  .passkey-entry__warning {
    color: var(--amber);
  }

  .passkey-entry__notice {
    color: var(--cyan);
  }

  .capability-strip {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
    width: min(760px, 100%);
    margin: 22px auto 0;
  }

  .capability {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    min-width: 0;
    padding: 10px 11px;
    border: 1px solid var(--line);
    border-radius: 11px;
    background: oklch(20% 0.04 258 / 44%);
    font-size: 0.75rem;
    backdrop-filter: blur(12px);
  }

  .capability span {
    flex: 0 0 auto;
    color: var(--cyan);
    font-weight: 720;
  }

  .capability i {
    color: var(--white-faint);
    font-family: var(--mono);
    font-style: normal;
  }

  .capability strong {
    min-width: 0;
    color: var(--white-soft);
    font-weight: 580;
    overflow-wrap: anywhere;
  }

  .capability-strip.is-collapsed {
    display: flex;
    justify-content: center;
    width: auto;
    margin-top: 12px;
    opacity: 0.58;
  }

  .capability-strip.is-collapsed .capability {
    padding: 6px 9px;
    border-radius: 999px;
    background: transparent;
  }

  .capability-strip.is-collapsed .capability i,
  .capability-strip.is-collapsed .capability strong {
    display: none;
  }

  .paper-request {
    justify-self: center;
    max-width: 62ch;
    margin-top: 18px;
    padding: 10px 14px;
    border: 1px solid oklch(83% 0.17 83 / 35%);
    border-radius: 10px;
    background: oklch(30% 0.07 82 / 25%);
    color: var(--amber);
    font-size: 0.7rem;
  }

  .paper-request span {
    margin-right: 8px;
    font-family: var(--mono);
  }

  .session-controls {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-top: 24px;
  }

  .control-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 44px;
    padding: 9px 13px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--glass);
    color: var(--white-soft);
    font-size: 0.76rem;
    font-weight: 650;
    backdrop-filter: blur(15px);
    transition:
      border-color 180ms ease,
      background 180ms ease,
      color 180ms ease,
      translate 180ms ease;
  }

  .control-button:not(:disabled):hover {
    translate: 0 -2px;
    border-color: var(--line-strong);
    color: var(--white);
  }

  .control-button.is-active {
    border-color: oklch(84% 0.16 190 / 55%);
    background: oklch(38% 0.1 210 / 42%);
    color: var(--cyan);
  }

  .control-button:disabled {
    translate: none;
    border-color: var(--line);
    background: oklch(18% 0.02 258 / 34%);
    color: var(--white-faint);
    cursor: not-allowed;
    opacity: 0.52;
  }

  .control-button--end:not(:disabled):hover {
    border-color: oklch(66% 0.23 25 / 58%);
    color: var(--danger);
  }

  .control-button span {
    font-family: var(--mono);
    font-size: 0.62rem;
  }

  .caption-panel {
    width: min(680px, 100%);
    margin: 18px auto 0;
    padding: 16px 18px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: var(--glass-deep);
    backdrop-filter: blur(18px);
  }

  .caption-panel__speaker {
    margin-bottom: 6px;
    color: var(--cyan);
    font: 650 0.55rem/1 var(--mono);
    letter-spacing: 0.12em;
  }

  .caption-panel p:last-child {
    color: var(--white-soft);
    font-size: 0.76rem;
  }

  .paper-drop,
  .research-panel,
  .privacy-fold {
    border: 1px solid var(--line);
    border-radius: 18px;
    background:
      linear-gradient(145deg, oklch(28% 0.04 258 / 54%), oklch(15% 0.025 258 / 72%));
    box-shadow: 0 24px 60px oklch(5% 0.02 260 / 28%);
    backdrop-filter: blur(24px);
  }

  .paper-drop {
    padding: 20px;
  }

  .research-panel {
    min-width: 0;
    padding: 17px;
  }

  .research-panel__heading {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 12px;
  }

  .research-panel__heading h2 {
    margin-top: 5px;
    font-size: 0.82rem;
    letter-spacing: 0.04em;
  }

  .research-panel__warning {
    flex: 0 0 auto;
    padding: 5px 7px;
    border: 1px solid oklch(83% 0.17 83 / 38%);
    border-radius: 999px;
    color: var(--amber);
    font: 650 0.5rem/1 var(--mono);
  }

  .research-panel__note {
    margin-top: 9px;
    color: var(--white-faint);
    font-size: 0.56rem;
    line-height: 1.65;
  }

  .research-list {
    display: grid;
    max-height: min(38svh, 340px);
    margin: 12px 0 0;
    padding: 0;
    overflow-y: auto;
    list-style: none;
    scrollbar-color: var(--line-strong) transparent;
  }

  .research-list li {
    min-width: 0;
    border-top: 1px solid var(--line);
  }

  .research-card {
    display: grid;
    gap: 5px;
    padding: 11px 3px;
    color: var(--white-soft);
    text-decoration: none;
  }

  .research-card:hover {
    color: var(--white);
  }

  .research-card strong {
    overflow: hidden;
    font-size: 0.65rem;
    font-weight: 640;
    line-height: 1.5;
    text-wrap: pretty;
  }

  .research-card__meta {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--cyan);
    font: 600 0.5rem/1.2 var(--mono);
  }

  .research-card__meta i {
    color: var(--white-faint);
    font-style: normal;
  }

  .research-card small {
    overflow: hidden;
    color: var(--white-faint);
    font: 500 0.48rem/1.3 var(--mono);
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .paper-drop__heading {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 12px;
    align-items: start;
  }

  .utility-index {
    color: var(--cyan);
    font: 650 0.58rem/1 var(--mono);
  }

  .paper-drop h2 {
    font-size: 0.82rem;
    letter-spacing: 0.04em;
  }

  .paper-drop__heading p {
    margin-top: 4px;
    color: var(--white-faint);
    font-size: 0.58rem;
  }

  .mode-summary {
    margin-top: 15px;
    color: var(--white-soft);
    font-size: 0.72rem;
    line-height: 1.75;
    text-wrap: pretty;
  }

  .mode-route {
    margin-top: 12px;
    border-top: 1px solid var(--line);
  }

  .mode-route summary {
    padding-top: 11px;
    color: var(--cyan);
    font: 650 0.62rem/1.4 var(--mono);
    list-style-position: inside;
  }

  .mode-route p {
    margin-top: 9px;
    color: var(--white-faint);
    font-size: 0.62rem;
    line-height: 1.75;
    overflow-wrap: anywhere;
  }

  .paper-picker {
    display: flex;
    align-items: center;
    gap: 13px;
    min-height: 72px;
    margin-top: 17px;
    padding: 13px;
    border: 1px dashed var(--line-strong);
    border-radius: 13px;
    background: oklch(12% 0.025 258 / 44%);
    transition:
      border-color 180ms ease,
      background 180ms ease;
  }

  .paper-picker:hover {
    border-color: var(--cyan);
    background: oklch(23% 0.065 220 / 45%);
  }

  .paper-picker.is-disabled {
    cursor: not-allowed;
    opacity: 0.48;
  }

  .paper-picker__icon {
    display: grid;
    flex: 0 0 auto;
    width: 38px;
    aspect-ratio: 1;
    place-items: center;
    border: 1px solid var(--line);
    border-radius: 50%;
    color: var(--cyan);
    font: 300 1.3rem/1 var(--sans);
  }

  .paper-picker > span:last-child {
    display: grid;
    min-width: 0;
  }

  .paper-picker strong {
    overflow: hidden;
    font-size: 0.68rem;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .paper-picker small {
    margin-top: 3px;
    color: var(--white-faint);
    font-size: 0.56rem;
  }

  .document-error {
    margin-top: 9px;
    color: var(--danger);
    font-size: 0.62rem;
  }

  .privacy-fold {
    overflow: hidden;
  }

  .privacy-fold summary {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 12px;
    min-height: 78px;
    padding: 18px 20px;
    list-style: none;
  }

  .privacy-fold summary::-webkit-details-marker {
    display: none;
  }

  .privacy-fold summary > span:nth-child(2) {
    display: grid;
  }

  .privacy-fold summary strong {
    font: 680 0.65rem/1.2 var(--mono);
    letter-spacing: 0.08em;
  }

  .privacy-fold summary small {
    margin-top: 4px;
    color: var(--white-faint);
    font-size: 0.57rem;
  }

  .privacy-fold summary i {
    width: 9px;
    aspect-ratio: 1;
    border-right: 1px solid var(--white-soft);
    border-bottom: 1px solid var(--white-soft);
    rotate: 45deg;
    transition: rotate 260ms var(--ease-out);
  }

  .privacy-fold[open] summary i {
    rotate: 225deg;
  }

  .privacy-fold__body {
    display: grid;
    gap: 13px;
    padding: 0 20px 20px;
    border-top: 1px solid var(--line);
  }

  .privacy-fold__body p {
    padding-top: 13px;
    color: var(--white-faint);
    font-size: 0.6rem;
    line-height: 1.7;
  }

  .privacy-fold__body strong {
    display: block;
    margin-bottom: 2px;
    color: var(--white-soft);
    font: 650 0.57rem/1.4 var(--mono);
    letter-spacing: 0.08em;
  }

  .privacy-fold__body .privacy-fold__stop {
    padding: 10px 11px;
    border-left: 2px solid var(--cyan);
    background: oklch(32% 0.07 220 / 25%);
    color: var(--white-soft);
  }
}

@layer states {
  .voice-orb.is-ready {
    cursor: pointer;
  }

  .voice-orb.is-ready:hover {
    scale: 1.035;
  }

  .voice-orb.is-ready .voice-orb__surface {
    animation: orb-drift 8s linear infinite;
  }

  .voice-orb.is-requesting .voice-orb__surface,
  .voice-orb.is-thinking .voice-orb__surface {
    animation: orb-think 2.1s linear infinite;
  }

  .voice-orb.is-requesting .orb-orbit,
  .voice-orb.is-thinking .orb-orbit {
    animation-duration: 2.5s;
  }

  .voice-orb.is-listening .voice-orb__surface {
    background:
      radial-gradient(circle at 32% 24%, white 0 2%, transparent 22%),
      radial-gradient(circle at 52% 52%, var(--cyan) 0, transparent 52%),
      conic-gradient(from var(--orb-angle), var(--cyan-deep), var(--cyan), var(--violet), var(--cyan-deep));
    animation:
      orb-listen 1.65s ease-in-out infinite,
      orb-drift 7s linear infinite;
  }

  .voice-orb.is-listening::before {
    animation: listen-ring 1.65s ease-out infinite;
  }

  .voice-orb.is-listening .voice-orb__wave i {
    animation: wave-listen 880ms ease-in-out infinite alternate;
  }

  .voice-orb.is-speaking .voice-orb__surface {
    background:
      radial-gradient(circle at 32% 24%, white 0 2%, transparent 22%),
      radial-gradient(circle at 60% 62%, var(--amber) 0, transparent 46%),
      conic-gradient(from var(--orb-angle), var(--violet), var(--rose), var(--amber), var(--violet));
    animation: orb-drift 4.5s linear infinite;
  }

  .voice-orb.is-speaking .voice-orb__wave i {
    animation: wave-speak 560ms ease-in-out infinite alternate;
  }

  .voice-orb.is-paused {
    filter: grayscale(0.85) opacity(0.58);
  }

  .voice-orb.is-error .voice-orb__surface {
    background:
      radial-gradient(circle at 31% 24%, white 0 2%, transparent 22%),
      radial-gradient(circle, var(--danger), transparent 58%),
      var(--night);
    box-shadow: 0 0 80px oklch(66% 0.23 25 / 25%);
  }

  .voice-orb__wave i:nth-child(2),
  .voice-orb__wave i:nth-child(6) {
    animation-delay: -120ms;
  }

  .voice-orb__wave i:nth-child(3),
  .voice-orb__wave i:nth-child(5) {
    animation-delay: -240ms;
  }

  .voice-orb__wave i:nth-child(4) {
    animation-delay: -360ms;
  }

  .voice-space[data-voice-state="is-listening"] .orb-orbit--outer,
  .voice-space[data-voice-state="is-thinking"] .orb-orbit--outer {
    animation: orbit-spin 14s linear infinite;
  }

  .voice-space[data-voice-state="is-listening"] .orb-orbit--inner,
  .voice-space[data-voice-state="is-thinking"] .orb-orbit--inner {
    animation: orbit-spin-reverse 9s linear infinite;
  }
}

@layer responsive {
  @media (max-width: 1040px) {
    .conversation-stage {
      grid-template-columns: minmax(0, 1fr) 290px;
      gap: 24px;
      padding-inline: 26px;
    }

    .orb-field {
      width: min(58vw, 410px);
    }
  }

  @media (max-width: 820px) {
    .conversation-stage {
      grid-template-columns: minmax(0, 1fr);
      gap: 32px;
    }

    .voice-space {
      min-height: 0;
    }

    .voice-space--passkey {
      min-height: 0;
    }

    .utility-dock {
      grid-template-columns: repeat(2, minmax(0, 1fr));
      align-self: auto;
      width: 100%;
    }

    .research-panel {
      grid-column: 1 / -1;
    }
  }

  @media (max-width: 620px) {
    .topline {
      min-height: 64px;
      padding: 12px 16px;
    }

    .identity__type small,
    .bottomline span:nth-child(2),
    .cloud-pill {
      display: none;
    }

    .conversation-stage {
      gap: 26px;
      padding: 20px 15px 34px;
    }

    .voice-space {
      min-height: 0;
    }

    .voice-space--passkey {
      min-height: 0;
    }

    .conversation-stage--passkey {
      padding-top: 14px;
    }

    .conversation-stage--passkey .context-line {
      flex-wrap: wrap;
      width: 100%;
    }

    .passkey-gate {
      margin-top: 10px;
    }

    .passkey-entry {
      padding: 16px 14px;
    }

    .passkey-entry__actions {
      grid-template-columns: 1fr;
    }

    .orb-field {
      width: min(86vw, 320px);
      min-width: 260px;
      margin-block: -8px;
    }

    .voice-status {
      margin-top: 4px;
    }

    .voice-status h1 {
      font-size: clamp(1.75rem, 7.8vw, 2.35rem);
    }

    .voice-status__hint {
      max-width: 40ch;
      padding-inline: 12px;
    }

    .capability-strip {
      grid-template-columns: 1fr;
      width: min(340px, 100%);
      margin-top: 18px;
    }

    .capability {
      justify-content: flex-start;
      padding-inline: 15px;
    }

    .capability-strip.is-collapsed {
      display: flex;
      width: 100%;
      overflow-x: auto;
      justify-content: flex-start;
      padding-inline: 8px;
      scrollbar-width: none;
    }

    .utility-dock {
      grid-template-columns: 1fr;
    }

    .bottomline {
      justify-content: center;
      padding: 10px 16px;
    }

    .bottomline span:last-child {
      display: none;
    }
  }

  @media (max-height: 720px) and (min-width: 821px) {
    .conversation-stage {
      padding-block: 18px;
    }

    .voice-space {
      min-height: 0;
    }

    .voice-space--passkey {
      min-height: 0;
    }

    .orb-field {
      width: min(43vw, 340px);
    }

    .voice-status h1 {
      font-size: clamp(1.65rem, 2.7vw, 2.65rem);
    }
  }

  @media (max-height: 540px) {
    .conversation-stage--passkey {
      padding-block: 10px;
    }

    .conversation-stage--passkey .context-line {
      gap: 4px;
      min-height: 0;
    }

    .conversation-stage--passkey .context-chip {
      min-height: 24px;
      padding: 4px 7px;
      font-size: 0.6rem;
      line-height: 1.25;
      text-align: center;
      white-space: normal;
    }

    .passkey-gate {
      margin-top: 0;
    }

    .passkey-entry {
      max-height: calc(100svh - 148px);
      padding-block: 12px;
      overflow-y: auto;
      overscroll-behavior: contain;
      scrollbar-gutter: stable;
    }

    .passkey-entry__lead,
    .passkey-entry__warning,
    .passkey-entry__notice {
      margin-top: 6px;
      line-height: 1.45;
    }

    .passkey-entry__actions {
      margin-top: 8px;
    }
  }
}

@layer motion {
  @keyframes answer-move-forward {
    0% {
      transform: translateX(min(32vw, 190px));
      opacity: 0.35;
    }
    55% {
      transform: translateX(-8px);
      opacity: 1;
    }
    100% {
      transform: translateX(0);
      opacity: 1;
    }
  }

  @keyframes answer-arrive {
    0%, 65% { box-shadow: 0 0 0 0 rgb(107 231 195 / 0); }
    82% { box-shadow: 0 0 0 12px rgb(107 231 195 / 0.18); }
    100% { box-shadow: 0 0 0 0 rgb(107 231 195 / 0); }
  }

  @keyframes answer-leave-back {
    0%, 35% {
      opacity: 1;
    }
    75%, 100% {
      opacity: 0;
    }
  }

  @keyframes orb-drift {
    to {
      --orb-angle: 1turn;
    }
  }

  @keyframes orb-think {
    0% {
      --orb-angle: 0deg;
      scale: 0.96;
    }
    50% {
      scale: 1.025;
    }
    100% {
      --orb-angle: 1turn;
      scale: 0.96;
    }
  }

  @keyframes orb-listen {
    0%,
    100% {
      scale: 0.965;
      filter: saturate(0.9);
    }
    50% {
      scale: 1.025;
      filter: saturate(1.18);
    }
  }

  @keyframes listen-ring {
    0% {
      scale: 0.92;
      opacity: 0.9;
    }
    100% {
      scale: 1.18;
      opacity: 0;
    }
  }

  @keyframes wave-listen {
    to {
      height: 30px;
    }
  }

  @keyframes wave-speak {
    from {
      height: 7px;
    }
    to {
      height: 38px;
    }
  }

  @keyframes orbit-spin {
    to {
      rotate: 1turn;
    }
  }

  @keyframes orbit-spin-reverse {
    to {
      rotate: -1turn;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
      scroll-behavior: auto !important;
      animation: none !important;
      transition: none !important;
    }
  }
}

@layer components {
  .answer-sculpture {
    width: min(100%, 430px);
    margin: 14px auto 12px;
    padding: 14px;
    border: 1px solid rgb(255 255 255 / 0.13);
    border-radius: 18px;
    background: linear-gradient(135deg, rgb(8 21 28 / 0.9), rgb(12 40 43 / 0.72));
    overflow: hidden;
  }

  .answer-sculpture__row {
    display: grid;
    grid-template-columns: 64px 1fr 42px;
    align-items: center;
    gap: 10px;
    min-height: 42px;
  }

  .answer-sculpture__row--now {
    grid-template-columns: 64px 42px 1fr;
  }

  .answer-sculpture__time {
    color: rgb(225 239 237 / 0.68);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
  }

  .answer-sculpture__line {
    height: 2px;
    border-radius: 999px;
    background: linear-gradient(90deg, rgb(255 255 255 / 0.08), rgb(255 255 255 / 0.28));
  }

  .answer-sculpture__a {
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    border-radius: 50%;
    font: 700 1.05rem/1 ui-monospace, monospace;
  }

  .answer-sculpture__a--back {
    color: rgb(225 239 237 / 0.66);
    border: 1px solid rgb(255 255 255 / 0.2);
  }

  .answer-sculpture__a--front {
    color: #06231f;
    background: #6be7c3;
  }

  .answer-sculpture--changed .answer-sculpture__a--front {
    animation: answer-move-forward 900ms cubic-bezier(0.2, 0.9, 0.25, 1) both,
      answer-arrive 1.2s ease-out both;
  }

  .answer-sculpture--changed .answer-sculpture__a--back {
    animation: answer-leave-back 900ms ease-out both;
  }

  .answer-sculpture__arrow {
    display: block;
    color: rgb(107 231 195 / 0.72);
    line-height: 1;
    text-align: center;
  }

  .answer-sculpture--unverified {
    color: rgb(225 239 237 / 0.62);
    text-align: center;
  }

  .answer-sculpture__unknown {
    display: inline-block;
    padding: 7px 12px;
    border: 1px dashed rgb(255 255 255 / 0.2);
    border-radius: 999px;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
  }

  .guest-voice-comparison-choice {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin: 14px 0;
    padding: 12px;
    border: 1px solid rgb(255 255 255 / 0.13);
    border-radius: 14px;
    background: rgb(5 18 25 / 0.44);
    cursor: pointer;
  }

  .guest-voice-comparison-choice input {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    accent-color: #6be7c3;
  }

  .guest-voice-comparison-choice span {
    display: grid;
    gap: 3px;
  }

  .guest-voice-comparison-choice small {
    color: rgb(225 239 237 / 0.68);
  }

.guest-voice-comparison {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 14px;
    padding: 12px;
    border: 1px solid rgb(107 231 195 / 0.28);
    border-radius: 14px;
    background: rgb(5 28 29 / 0.62);
  }

  .guest-voice-comparison p {
    flex-basis: 100%;
    margin: 0 0 3px;
  }

  .silence-receipt {
    display: grid;
    gap: 7px;
    margin: 12px 0 18px;
    padding: 16px 18px;
    border: 1px solid rgb(107 231 195 / 0.34);
    border-radius: 16px;
    background: linear-gradient(135deg, rgb(5 31 31 / 0.8), rgb(7 19 29 / 0.74));
    box-shadow: inset 3px 0 0 #6be7c3;
  }

  .silence-receipt strong {
    color: #dffcf3;
    font-size: 1rem;
  }

  .silence-receipt p {
    margin: 0;
    color: rgb(225 239 237 / 0.72);
    line-height: 1.6;
  }

  .silence-receipt__eyebrow {
    color: #6be7c3 !important;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
  }

  @media (max-width: 420px) {
    .answer-sculpture { padding-inline: 10px; }
    .answer-sculpture__row,
    .answer-sculpture__row--now { grid-template-columns: 58px 38px 1fr; }
    .answer-sculpture__row:not(.answer-sculpture__row--now) { grid-template-columns: 58px 1fr 38px; }
  }
}