:root {
  --bg: #050505;
  --bg-soft: #0b0b0d;
  --panel: rgba(18, 18, 20, 0.92);
  --panel-strong: rgba(26, 26, 29, 0.96);
  --line: rgba(255, 255, 255, 0.1);
  --line-strong: rgba(255, 255, 255, 0.2);
  --text: #f4f4f1;
  --muted: rgba(244, 244, 241, 0.64);
  --muted-strong: rgba(244, 244, 241, 0.82);
  --accent: #f4f4f1;
  --accent-soft: rgba(244, 244, 241, 0.2);
  --user-wave: #ffffff;
  --ai-wave: #9bd3ff;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
  --menu-surface: #050505;
  --menu-panel-bg: #050505;
  --menu-line: rgba(255, 255, 255, 0.14);
  --menu-line-strong: rgba(255, 255, 255, 0.36);
  --menu-text: #f4f4f1;
  --menu-muted: rgba(244, 244, 241, 0.68);
  --group-bg: rgba(255, 255, 255, 0.025);
  --button-bg: #f4f4f1;
  --button-text: #050505;
  --ghost-hover: rgba(255, 255, 255, 0.06);
  --select-bg: rgba(255, 255, 255, 0.08);
  --chip-bg: rgba(255, 255, 255, 0.08);
  --menu-backdrop-bg: transparent;
  --mobile-menu-bg: #050505;
  --body-radial: rgba(255, 255, 255, 0.06);
  --body-grad-start: #070707;
  --body-grad-end: #020202;
  --body-overlay-top: rgba(255, 255, 255, 0.035);
  --body-overlay-center: rgba(255, 255, 255, 0.04);
  --equalizer-glow: rgba(255, 255, 255, 0.045);
  --baseline-color: rgba(255, 255, 255, 0.07);
  --wave-shadow: 0 0 5px rgba(255, 255, 255, 0.05);
  --focus-ring: rgba(155, 211, 255, 0.4);
  --wrap: min(1440px, calc(100vw - 2rem));
  --topbar-height: 5.5rem;
  --sans: "Sora", sans-serif;
  --mono: "IBM Plex Mono", monospace;
  --transition-fast: 180ms ease;
  color-scheme: dark;
}

:root[data-theme="light"] {
  --bg: #f4f1ea;
  --bg-soft: #ece7dc;
  --panel: rgba(255, 255, 252, 0.8);
  --panel-strong: rgba(250, 247, 240, 0.92);
  --line: rgba(18, 18, 20, 0.1);
  --line-strong: rgba(18, 18, 20, 0.18);
  --text: #111214;
  --muted: rgba(17, 18, 20, 0.62);
  --muted-strong: rgba(17, 18, 20, 0.82);
  --accent: #111214;
  --accent-soft: rgba(17, 18, 20, 0.16);
  --user-wave: #111214;
  --ai-wave: #111214;
  --shadow: 0 24px 80px rgba(79, 62, 31, 0.12);
  --menu-surface: #f4f1ea;
  --menu-panel-bg: #f4f1ea;
  --menu-line: rgba(17, 18, 20, 0.12);
  --menu-line-strong: rgba(17, 18, 20, 0.24);
  --menu-text: #111214;
  --menu-muted: rgba(17, 18, 20, 0.64);
  --group-bg: rgba(17, 18, 20, 0.03);
  --button-bg: #111214;
  --button-text: #f4f1ea;
  --ghost-hover: rgba(17, 18, 20, 0.05);
  --select-bg: rgba(17, 18, 20, 0.04);
  --chip-bg: rgba(17, 18, 20, 0.05);
  --menu-backdrop-bg: transparent;
  --mobile-menu-bg: #f4f1ea;
  --body-radial: rgba(255, 255, 255, 0.58);
  --body-grad-start: #faf7ef;
  --body-grad-end: #ede7db;
  --body-overlay-top: rgba(255, 255, 255, 0.4);
  --body-overlay-center: rgba(255, 255, 255, 0.28);
  --equalizer-glow: rgba(17, 18, 20, 0.06);
  --baseline-color: rgba(17, 18, 20, 0.12);
  --wave-shadow: 0 0 4px rgba(17, 18, 20, 0.04);
  --focus-ring: rgba(17, 18, 20, 0.22);
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at center, var(--body-radial), transparent 26rem),
    linear-gradient(180deg, var(--body-grad-start), var(--body-grad-end));
  color: var(--text);
  font-family: var(--sans);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, var(--body-overlay-top), transparent 20%),
    radial-gradient(circle at 50% 48%, var(--body-overlay-center), transparent 18rem);
}

a {
  color: inherit;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

audio {
  display: none;
}

:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 3px;
}

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

.skip-link:focus {
  width: auto;
  height: auto;
  margin: 1rem;
  padding: 0.8rem 1rem;
  clip: auto;
  border-radius: 999px;
  background: #ffffff;
  color: #000000;
}

.page-shell {
  width: var(--wrap);
  margin: 0 auto;
  padding: 0 0 2.5rem;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: var(--topbar-height);
  padding: 1.25rem 1.5rem;
  background: var(--menu-surface);
  color: var(--menu-text);
}

.menu-backdrop {
  position: fixed;
  inset: 0;
  z-index: 25;
  background: var(--menu-backdrop-bg);
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease;
}

body.menu-open .menu-backdrop {
  opacity: 1;
  pointer-events: auto;
}

body.menu-open .topbar {
  background: var(--menu-surface);
  box-shadow: none;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  flex: 0 0 auto;
  min-height: 3.15rem;
  min-width: max-content;
  text-decoration: none;
  color: var(--menu-text);
}

.brand__icon {
  width: 2rem;
  min-width: 2rem;
  height: 2rem;
  min-height: 2rem;
  object-fit: contain;
  flex: 0 0 auto;
}

.brand__word {
  display: inline-block;
  font-size: clamp(2.3rem, 3vw, 3rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.085em;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0;
  margin-left: auto;
}

.site-nav--mobile {
  display: none;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: auto;
  height: auto;
  padding: 0.25rem;
  margin-left: 1rem;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  outline: none;
  color: var(--menu-text);
  flex: 0 0 auto;
  transition:
    transform var(--transition-fast),
    background-color var(--transition-fast),
    border-color var(--transition-fast);
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  background: transparent;
  transform: translateY(-1px);
  box-shadow: none;
}

.theme-toggle__icon {
  width: 1.35rem;
  height: 1.35rem;
  display: block;
}

.theme-toggle__icon--dark {
  display: none;
}

:root[data-theme="light"] .theme-toggle__icon--light {
  display: none;
}

:root[data-theme="light"] .theme-toggle__icon--dark {
  display: block;
  filter: brightness(0) saturate(100%) contrast(1.05);
}

:root[data-theme="light"] .brand__icon {
  filter: brightness(0) saturate(100%) contrast(1.05);
}

.menu-item {
  position: relative;
}

.menu-item summary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.15rem;
  min-width: 3.15rem;
  padding: 0.7rem;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--menu-text);
  cursor: pointer;
  list-style: none;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast);
}

.menu-item summary::-webkit-details-marker {
  display: none;
}

.menu-icon {
  width: 1.7rem;
  height: 1.7rem;
  display: block;
  transition: transform 220ms ease;
}

.menu-item[open] summary,
.menu-item summary:hover,
.menu-item summary:focus-visible {
  background: transparent;
  border-color: transparent;
  color: var(--menu-text);
}

.menu-item[open] .menu-icon {
  transform: rotate(-90deg);
}

.menu-panel {
  position: absolute;
  top: calc(100% + 1.2rem);
  right: 0;
  left: auto;
  width: min(30rem, calc(100vw - 2rem));
  display: grid;
  gap: 0.75rem;
  padding: 0.95rem;
  border: 1px solid var(--menu-line);
  border-radius: 24px;
  background: var(--menu-panel-bg);
  color: var(--menu-text);
  z-index: 30;
}

.menu-item--collapsed .menu-panel {
  right: 0;
  left: auto;
  width: min(34rem, calc(100vw - 2rem));
  transform: none;
}

.menu-panel--collapsed {
  display: grid;
  gap: 0;
  align-content: start;
}

.menu-panel__group {
  padding: 1rem 1.05rem;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--group-bg);
}

.menu-panel__group:last-child {
  margin-bottom: 0;
}

.site-nav--desktop {
  flex: 1 1 auto;
  justify-content: flex-end;
  gap: 2rem;
}

.site-nav--desktop .menu-item summary {
  min-width: 0;
  min-height: 0;
  padding: 0.15rem 0;
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--menu-muted);
}

.site-nav--desktop .menu-item summary::after {
  content: "";
  display: inline-block;
  width: 0.45rem;
  height: 0.45rem;
  margin-left: 0.7rem;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-0.12rem);
  transition: transform 180ms ease;
}

.site-nav--desktop .menu-item[open] summary,
.site-nav--desktop .menu-item summary:hover,
.site-nav--desktop .menu-item summary:focus-visible {
  background: transparent;
  border-color: transparent;
  color: var(--menu-text);
}

.site-nav--desktop .menu-item[open] summary {
  font-weight: 700;
}

.site-nav--desktop .menu-item[open] summary::after {
  transform: rotate(225deg) translateY(0.15rem);
}

.site-nav--mobile .menu-item summary {
  min-height: 0;
  min-width: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.site-nav--mobile .menu-item[open] summary,
.site-nav--mobile .menu-item summary:hover,
.site-nav--mobile .menu-item summary:focus-visible {
  background: transparent;
  border-color: transparent;
  color: var(--menu-text);
}

.menu-panel__eyebrow,
.stage-copy__eyebrow,
.conversation-card__eyebrow,
.select-field span,
.topbar__status,
.listening-state,
.equalizer-status span,
.message span {
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.menu-panel__eyebrow,
.menu-panel__copy,
.menu-panel__note,
.accent-notes {
  color: var(--menu-muted);
}

.menu-panel__eyebrow {
  margin: 0 0 0.75rem;
}

.menu-panel__title {
  margin: 0 0 0.95rem;
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.menu-panel__copy,
.menu-panel__note {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  line-height: 1.8;
}

.menu-panel__copy + .menu-panel__copy {
  margin-top: 0.7rem;
}

.menu-panel__link {
  display: inline-block;
  margin-bottom: 0.65rem;
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--menu-text);
}

.menu-panel__section {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

.menu-panel__actions {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.65rem;
  margin-top: 0.9rem;
}

.menu-panel__status {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.9rem;
}

.topbar__status,
.listening-state,
.accent-tags span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.25rem;
  padding: 0.45rem 0.75rem;
  border: 1px solid var(--menu-line);
  border-radius: 999px;
  background: var(--chip-bg);
  color: var(--menu-text);
}

.menu-panel__note {
  margin-top: 0.9rem;
}

.accent-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.accent-notes {
  margin: 0.85rem 0 0;
  padding-left: 1rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  line-height: 1.8;
}

.accent-notes li + li {
  margin-top: 0.45rem;
}

.stage-copy__note,
.equalizer-status,
.conversation-card__eyebrow,
.message p {
  color: var(--muted);
}

button,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.75rem 1rem;
  border: 1px solid transparent;
  border-radius: 999px;
  background: var(--button-bg);
  color: var(--button-text);
  cursor: pointer;
  font-weight: 600;
  text-decoration: none;
  transition:
    transform var(--transition-fast),
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    opacity var(--transition-fast);
}

button[hidden],
.button[hidden] {
  display: none !important;
}

button:hover,
button:focus-visible,
.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button--ghost {
  border-color: var(--menu-line-strong);
  background: transparent;
  color: var(--menu-text);
}

.button--ghost:hover,
.button--ghost:focus-visible {
  background: var(--ghost-hover);
}

button:disabled,
.button:disabled {
  opacity: 0.38;
  cursor: not-allowed;
  transform: none;
}

.select-field {
  display: grid;
  gap: 0.45rem;
}

.select-field span {
  color: var(--menu-muted);
}

.custom-select {
  position: relative;
}

.custom-select select {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.custom-select__shell {
  position: relative;
}

.custom-select__shell[open] {
  z-index: 12;
}

.custom-select__shell[open] .custom-select__trigger {
  border-color: var(--line-strong);
  background: var(--panel-strong);
}

.custom-select__shell[data-disabled="true"] .custom-select__trigger {
  opacity: 0.62;
  cursor: default;
}

.custom-select__trigger {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.85rem;
  min-height: 3.15rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--menu-line);
  border-radius: 18px;
  background: linear-gradient(90deg, var(--select-bg), transparent);
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
}

.custom-select__trigger::-webkit-details-marker {
  display: none;
}

.custom-select__value {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.custom-select__icon {
  width: 1rem;
  height: 1rem;
  flex: 0 0 auto;
  color: var(--muted-strong);
  transition: transform var(--transition-fast);
}

.custom-select__shell[open] .custom-select__icon {
  transform: rotate(180deg);
}

.custom-select__menu {
  position: absolute;
  top: calc(100% + 0.55rem);
  left: 0;
  right: 0;
  display: grid;
  gap: 0.22rem;
  padding: 0.45rem;
  border: 1px solid var(--menu-line);
  border-radius: 20px;
  background: var(--panel-strong);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
}

.custom-select__option {
  justify-content: flex-start;
  min-height: 2.75rem;
  padding: 0.75rem 0.9rem;
  border: 0;
  border-radius: 14px;
  background: transparent;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.custom-select__option:hover,
.custom-select__option:focus-visible {
  background: var(--select-bg);
  color: var(--text);
}

.custom-select__option.is-selected {
  background: var(--chip-bg);
  color: var(--text);
}

select {
  width: 100%;
  min-height: 3.2rem;
  padding: 0.8rem 0.95rem;
  border: 1px solid var(--menu-line);
  border-radius: 18px;
  background: var(--select-bg);
  color: var(--menu-text);
}

select:focus {
  border-color: var(--menu-line-strong);
}

.mobile-menu__list {
  display: flex;
  flex-direction: column;
  width: 100%;
  gap: 0.75rem;
  align-items: flex-end;
}

.mobile-menu__item {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  min-height: 4.5rem;
  margin: 0;
  padding: 0;
  width: auto;
  max-width: 100%;
  border: 0;
  border-radius: 18px;
  background: transparent;
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--menu-text);
}

.mobile-menu__item--link {
  text-decoration: none;
}

.mobile-menu__item--theme {
  width: auto;
  min-height: 4.5rem;
  padding: 0;
  margin-left: 0;
  gap: 0;
  justify-content: flex-end;
  background: transparent;
  color: var(--menu-text);
  box-shadow: none;
}

.mobile-menu__item--theme:hover,
.mobile-menu__item--theme:focus-visible {
  background: transparent;
  box-shadow: none;
}

.app-shell {
  display: grid;
  place-items: center;
  min-height: calc(100vh - 7rem);
  padding: 2rem 0 0;
}

.app-shell--trial {
  min-height: calc(100vh - 8rem);
  padding-top: 0;
}

.trial-shell {
  display: grid;
  justify-items: center;
  gap: 1.35rem;
  width: min(100%, 72rem);
  text-align: center;
}

.stage-copy--trial {
  max-width: 72rem;
  justify-items: center;
}

.equalizer-stage--trial {
  width: min(100%, 70rem);
}

.practice-controls--trial {
  width: min(100%, 82rem);
  padding: 0;
  border: 0;
  outline: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.practice-controls--trial .practice-controls__actions,
.practice-controls--trial .practice-controls__status {
  justify-content: center;
}

.practice-controls--trial .practice-controls__actions {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  justify-items: center;
  width: min(100%, 50rem);
  justify-self: center;
  gap: 0.35rem;
}

.practice-controls--trial .practice-controls__actions button,
.practice-controls--trial .practice-controls__actions .button {
  min-height: 3rem;
  width: min(100%, 24rem);
}

.trial-note {
  margin: 0;
  max-width: 34rem;
  justify-self: center;
  width: 100%;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  line-height: 1.8;
  text-align: center;
  text-transform: uppercase;
  color: var(--muted);
}

.stage-shell {
  display: grid;
  justify-items: center;
  gap: 1.6rem;
  width: min(100%, 74rem);
  text-align: center;
}

.stage-copy {
  display: grid;
  gap: 0.85rem;
  width: min(100%, 72rem);
  max-width: none;
}

.stage-copy__eyebrow {
  margin: 0;
  color: var(--muted);
}

h1,
h2 {
  margin: 0;
}

h1 {
  font-size: clamp(1.8rem, 7vw, 4.4rem);
  font-weight: 700;
  letter-spacing: -0.08em;
  white-space: nowrap;
}

h2 {
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  font-weight: 600;
  letter-spacing: -0.05em;
}

.stage-copy__note {
  margin: 0;
  font-size: 1rem;
  line-height: 1.7;
}

.practice-controls {
  display: grid;
  gap: 0.8rem;
  width: min(100%, 78rem);
  padding: 0.95rem 1.05rem 1.05rem;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.practice-controls.practice-controls--trial {
  width: min(100%, 82rem);
  padding: 0;
  border: 0;
  outline: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.practice-controls .select-field span,
.practice-controls .topbar__status,
.practice-controls .listening-state {
  color: var(--text);
}

.practice-controls__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

.practice-controls__grid select {
  min-height: 3.15rem;
  padding-inline: 0.85rem;
  border-color: var(--menu-line);
  border-radius: 18px;
  background: var(--select-bg);
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.practice-controls--speak {
  width: min(100%, 56rem);
}

.practice-controls__actions {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.65rem;
}

.practice-controls__actions button,
.practice-controls__actions .button {
  min-height: 2.9rem;
  padding-inline: 0.8rem;
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.practice-controls__status {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.practice-controls__note {
  margin: 0;
  font-family: var(--mono);
  color: var(--muted);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  line-height: 1.7;
}

.trial-finished-banner {
  width: min(100%, 56rem);
  padding: 1rem 1.1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--panel);
  box-shadow: var(--shadow);
  text-align: left;
}

.trial-finished-banner h2 {
  margin: 0 0 0.45rem;
  font-size: clamp(1.05rem, 2.1vw, 1.25rem);
  letter-spacing: -0.03em;
}

.trial-finished-banner p {
  margin: 0;
  line-height: 1.65;
}

.trial-finished-banner p + p {
  margin-top: 0.55rem;
}

.equalizer-stage {
  display: grid;
  gap: 0.95rem;
  width: min(100%, 48rem);
}

.equalizer-stage--speak {
  width: min(100%, 56rem);
}

.equalizer-status {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
  width: min(100%, 52rem);
  justify-self: center;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.equalizer-status span:first-child {
  text-align: left;
}

.equalizer-status span:last-child {
  text-align: right;
}

.equalizer {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: clamp(8.75rem, 16vw, 11.5rem);
  padding: 0.55rem 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  overflow: hidden;
}

.equalizer::before {
  content: "";
  position: absolute;
  inset: 22% 24%;
  border-radius: 999px;
  background: radial-gradient(circle at center, var(--equalizer-glow), transparent 64%);
  filter: blur(14px);
}

.equalizer__svg {
  position: relative;
  z-index: 1;
  width: min(100%, 48rem);
  height: 100%;
  overflow: visible;
}

.equalizer__baseline,
.equalizer__path {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}

.equalizer__baseline {
  stroke: var(--baseline-color);
  stroke-width: 1.8;
}

.equalizer__path {
  stroke-width: 3.6;
  stroke-linecap: butt;
  stroke: var(--user-wave);
  filter: drop-shadow(var(--wave-shadow));
  opacity: 0.88;
  transition: opacity 180ms ease;
}

.equalizer[data-mode="still"] .equalizer__path,
.equalizer[data-mode="idle"] .equalizer__path,
.equalizer[data-mode="processing"] .equalizer__path,
.equalizer[data-mode="intro"] .equalizer__path {
  opacity: 0.9;
}

.equalizer[data-mode="muted"] .equalizer__path {
  opacity: 0.46;
}

.equalizer[data-mode="muted"] .equalizer__baseline {
  stroke: rgba(255, 255, 255, 0.08);
}

.equalizer__path {
  position: relative;
  will-change: d, opacity;
}

.conversation-card {
  width: min(100%, 54rem);
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--panel);
  box-shadow: var(--shadow);
  text-align: left;
}

.conversation-card--live {
  width: min(100%, 56rem);
}

.transcript-actions {
  width: min(100%, 56rem);
  display: flex;
  justify-content: center;
}

.transcript-actions__button {
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.conversation-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.9rem;
}

.conversation-card__eyebrow {
  margin: 0 0 0.4rem;
  color: var(--muted);
}

.transcript-feed {
  display: grid;
  gap: 0.75rem;
  max-height: 18rem;
  overflow: auto;
  padding-right: 0.15rem;
}

.transcript-feed:empty {
  min-height: 12rem;
}

.message {
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.message--assistant {
  background: transparent;
}

.message--user {
  background: transparent;
}

.message span {
  display: inline-block;
  color: var(--muted-strong);
}

.message p {
  margin: 0.35rem 0 0;
  font-family: var(--mono);
  font-size: 0.94rem;
  letter-spacing: 0.02em;
  line-height: 1.65;
}

@keyframes waveform-intro {
  0%,
  100% {
    transform: scaleY(0.64);
    opacity: 0.7;
  }

  45% {
    transform: scaleY(1.1);
    opacity: 1;
  }
}

@keyframes waveform-user {
  0%,
  100% {
    transform: scaleY(0.78);
    opacity: 0.82;
  }

  40% {
    transform: scaleY(1.18);
    opacity: 1;
  }

  75% {
    transform: scaleY(0.9);
  }
}

@keyframes waveform-ai {
  0%,
  100% {
    transform: scaleY(0.78);
    opacity: 0.82;
  }

  40% {
    transform: scaleY(0.96);
    opacity: 1;
  }

  75% {
    transform: scaleY(1.2);
  }
}

@media (max-width: 980px) {
  .topbar {
    position: sticky;
    top: 0;
    z-index: 45;
    padding: 1.25rem 1.5rem;
  }
}

@media (max-width: 1120px) {
  .topbar > .theme-toggle {
    display: none;
  }

  .site-nav--desktop,
  .site-nav--pages {
    display: none;
  }

  .site-nav--mobile {
    display: flex;
    flex: 1 1 auto;
    justify-content: flex-end;
  }

  .site-nav--mobile .menu-item summary {
    align-items: center;
    justify-content: center;
  }

  .menu-item--collapsed .menu-panel {
    position: fixed;
    top: var(--topbar-height);
    right: 0;
    bottom: 0;
    left: 0;
    width: 100vw;
    height: calc(100dvh - var(--topbar-height));
    margin-top: 0;
    padding: 0.85rem 2.5rem 1.5rem;
    border: 0;
    border-radius: 0;
    background: var(--mobile-menu-bg);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    overflow: auto;
    z-index: 35;
  }

  .site-nav--mobile .menu-item {
    position: static;
  }
}

@media (max-width: 760px) {
  .topbar > .theme-toggle {
    display: none;
  }

  .page-shell {
    width: var(--wrap);
  }

  .topbar {
    position: sticky;
    top: 0;
    z-index: 45;
    padding: 1.25rem 1.5rem;
  }

  .brand__word {
    display: none;
  }

  .brand__icon {
    width: 2rem;
    min-width: 2rem;
    height: 2rem;
    min-height: 2rem;
  }

  .menu-panel__section,
  .menu-panel__actions {
    grid-template-columns: 1fr;
  }

  .practice-controls {
    padding: 1rem;
  }

  .practice-controls__grid {
    grid-template-columns: 1fr;
  }

  .practice-controls__actions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .app-shell {
    min-height: auto;
    padding-top: 3.5rem;
  }

  .app-shell--trial {
    padding-top: 1rem;
  }

  .stage-shell {
    width: 100%;
  }

  .equalizer {
    padding: 1.1rem;
    height: 8.75rem;
  }

  .equalizer-status {
    width: min(100%, 24rem);
    margin-bottom: -0.15rem;
    font-size: 0.66rem;
    letter-spacing: 0.12em;
  }

  .equalizer-status span:first-child,
  .equalizer-status span:last-child {
    text-align: center;
  }

  .trial-shell {
    gap: 1rem;
  }

  .practice-controls--trial .practice-controls__actions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    justify-items: center;
    gap: 0.75rem 0.65rem;
  }

  .practice-controls__actions button,
  .practice-controls__actions .button {
    width: min(100%, 13rem);
    min-height: 2.8rem;
  }

  .conversation-card {
    padding: 0.9rem;
  }
}

.site-nav--pages {
  flex: 1 1 auto;
  justify-content: flex-end;
  gap: 1.6rem;
}

.site-nav__link {
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--menu-muted);
  transition: color var(--transition-fast);
}

.site-nav__link:hover,
.site-nav__link:focus-visible,
.site-nav__link--active {
  color: var(--menu-text);
  backdrop-filter: blur(18px) saturate(130%);
  -webkit-backdrop-filter: blur(18px) saturate(130%);
}

.content-main {
  min-height: calc(100vh - 7rem);
  padding: 2.4rem 0 3rem;
}

.content-shell {
  display: grid;
  gap: 1.25rem;
  width: min(100%, 74rem);
  margin: 0 auto;
}

.content-hero,
.content-card,
.price-card {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(24px) saturate(132%);
  -webkit-backdrop-filter: blur(24px) saturate(132%);
}

.content-hero {
  padding: 1.5rem 1.6rem;
}

.content-hero__eyebrow,
.content-card__eyebrow,
.price-card__eyebrow,
.legal-copy h2 {
  margin: 0 0 0.8rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.content-hero h1 {
  white-space: normal;
  font-size: clamp(2.4rem, 5.2vw, 4rem);
  margin-bottom: 0.85rem;
}

.content-hero p,
.content-card p,
.content-card li,
.price-card p,
.price-card li,
.legal-copy p,
.legal-copy li {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.75;
}

.content-grid,
.price-grid {
  display: grid;
  gap: 1rem;
}

.content-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.price-grid {
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
}

.content-card,
.price-card {
  padding: 1.25rem 1.3rem;
}

.content-card h2,
.price-card h2 {
  margin: 0 0 0.7rem;
  font-size: clamp(1.3rem, 2.2vw, 1.7rem);
  font-weight: 600;
  letter-spacing: -0.04em;
}

.content-card ul,
.price-card ul,
.legal-copy ul {
  margin: 0.85rem 0 0;
  padding-left: 1.05rem;
}

.content-card li + li,
.price-card li + li,
.legal-copy li + li {
  margin-top: 0.5rem;
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.95rem;
}

.pill-list span,
.price-card__price,
.contact-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.4rem;
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--group-bg);
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
}

.price-card__price {
  margin-bottom: 0.9rem;
}

.price-card__meta {
  margin: -0.2rem 0 0.95rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted-strong);
}

.price-card__cta {
  margin-top: 1rem;
  width: 100%;
}

.price-card__fineprint {
  margin-top: 1rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.price-card--featured {
  border-color: rgba(155, 211, 255, 0.26);
  background: rgba(155, 211, 255, 0.08);
}

.legal-copy {
  display: grid;
  gap: 1rem;
}

.legal-copy section {
  padding: 1.25rem 1.3rem;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(24px) saturate(132%);
  -webkit-backdrop-filter: blur(24px) saturate(132%);
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 0.95rem;
}

.page-footer-note {
  padding: 0 0.2rem;
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.site-footer {
  display: flex;
  justify-content: center;
  padding: 1rem 0 0.3rem;
  border-top: 0;
  box-shadow: none;
}

.site-footer__copy {
  margin: 0;
  font-family: var(--sans);
  font-size: 0.7rem;
  letter-spacing: -0.02em;
  text-transform: none;
  color: var(--muted);
}

@media (max-width: 900px) {
  .content-grid,
  .price-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .site-nav--pages {
    display: none;
  }

  .content-main {
    padding-top: 1.5rem;
  }

  .content-hero,
  .content-card,
  .price-card,
  .legal-copy section {
    padding: 1.1rem;
    border-radius: 24px;
  }

  .content-hero h1 {
    font-size: clamp(2rem, 10vw, 3rem);
  }
}