:root,
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f5f5f2;
  --surface: #ffffff;
  --surface-soft: #f0f1eb;
  --surface-raised: #fafbf7;
  --text: #20221d;
  --muted: #60645a;
  --line: #dcdfd4;
  --accent: #526b12;
  --accent-hover: #43590d;
  --button-text: #ffffff;
  --accent-soft: #edf3df;
  --accent-text: #435b0d;
  --blue: #526b12;
  --blue-soft: #edf3df;
  --danger: #a33b2e;
  --danger-soft: #fff0ec;
  --danger-line: #ddb4aa;
  --focus: #526b12;
  --shadow: 0 1px 2px #20221d08;
  --header: #ffffff;
  font-family:
    "Segoe UI",
    system-ui,
    -apple-system,
    sans-serif;
  font-size: 15px;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #09090b;
  --surface: #111113;
  --surface-soft: #18181b;
  --surface-raised: #1d1e20;
  --text: #f4f4f5;
  --muted: #a1a1aa;
  --line: #2c2d30;
  --accent: #c7f36b;
  --accent-hover: #d8ff8f;
  --button-text: #18200a;
  --accent-soft: #252d1a;
  --accent-text: #c7f36b;
  --blue: #c7f36b;
  --blue-soft: #202719;
  --danger: #f18a78;
  --danger-soft: #30201f;
  --danger-line: #704238;
  --focus: #c7f36b;
  --shadow: 0 1px 2px #00000018;
  --header: #111113;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
}
button,
input,
select,
textarea {
  font: inherit;
}
button,
a,
input,
select,
textarea,
summary {
  -webkit-tap-highlight-color: transparent;
  transition:
    background-color 0.2s,
    border-color 0.2s,
    color 0.2s,
    box-shadow 0.2s;
}

button {
  transform: translateZ(0);
  transition:
    background-color 0.2s,
    border-color 0.2s,
    color 0.2s,
    box-shadow 0.2s,
    transform 0.15s ease-out;
}
button:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow:
    var(--shadow),
    0 4px 12px rgba(0, 0, 0, 0.08);
}
button:active:not(:disabled) {
  transform: translateY(0);
  transition-duration: 0.08s;
}

.scenario-tile {
  transform: translateZ(0);
  transition: all 0.2s cubic-bezier(0.22, 1, 0.36, 1);
}
.scenario-tile:hover:not(:disabled) {
  transform: translateY(-2px) scale(1.01);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.1);
}
.scenario-tile:active:not(:disabled) {
  transform: translateY(0) scale(0.99);
}
.scenario-tile[aria-pressed="true"] {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.scenario-indicator {
  transition: transform 0.2s cubic-bezier(0.22, 1, 0.36, 1);
}
.scenario-tile:hover .scenario-indicator {
  transform: translate(2px, -2px);
}

.workspace-dock button {
  position: relative;
  transition: all 0.2s ease-out;
}
.workspace-dock button::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 0;
  background: var(--accent);
  border-radius: 0 2px 2px 0;
  transition: height 0.2s cubic-bezier(0.22, 1, 0.36, 1);
}
.workspace-dock button:hover::before {
  height: 60%;
}
.workspace-dock button[aria-current="location"]::before {
  height: 100%;
}
.workspace-dock button[aria-current="location"] {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-text);
  font-weight: 650;
}

.panel {
  animation: panel-enter 0.3s cubic-bezier(0.22, 1, 0.36, 1) backwards;
}
@keyframes panel-enter {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
}

#page-position {
  transition: opacity 0.2s;
}
body:not(.page-scrolled) #page-position {
  opacity: 0.5;
}

[data-brief] {
  position: relative;
  transition: all 0.2s ease-out;
}
[data-brief]::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform 0.25s cubic-bezier(0.22, 1, 0.36, 1);
}
[data-brief][aria-selected="true"]::after {
  transform: scaleX(1);
}
[data-brief]:hover:not([aria-selected="true"]) {
  background: var(--surface-soft);
}

input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 4px;
  animation: focus-pulse 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}
@keyframes focus-pulse {
  from {
    outline-width: 4px;
    outline-offset: 2px;
  }
}

.mode {
  transform: translateZ(0);
  transition: all 0.2s cubic-bezier(0.22, 1, 0.36, 1);
}
.mode:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}
.mode:has(input:checked) {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(82, 107, 18, 0.12);
}

details summary {
  position: relative;
}
details summary::after {
  content: "▸";
  position: absolute;
  right: 0;
  transition: transform 0.2s ease-out;
}
details[open] summary::after {
  transform: rotate(90deg);
}

.message {
  animation: message-enter 0.3s cubic-bezier(0.22, 1, 0.36, 1) backwards;
}
@keyframes message-enter {
  from {
    opacity: 0;
    transform: translateX(-8px);
  }
}
.message.user {
  animation-name: message-enter-user;
}
@keyframes message-enter-user {
  from {
    opacity: 0;
    transform: translateX(8px);
  }
}

a {
  transition: all 0.15s ease-out;
}
a:hover {
  color: var(--accent-hover);
  transform: translateX(1px);
  display: inline-block;
}

#briefing-content {
  min-height: 120px;
}

.eyebrow::before {
  animation: dot-pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}
@keyframes dot-pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.6;
    transform: scale(0.9);
  }
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
  * {
    scroll-margin-top: 100px;
  }
}
[hidden] {
  display: none !important;
}
:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 4px;
}
::selection {
  color: var(--button-text);
  background: var(--accent);
}
a {
  color: var(--accent-text);
  text-underline-offset: 4px;
}
a:hover {
  text-decoration-thickness: 2px;
}
button {
  min-height: 44px;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 10px 17px;
  background: var(--accent);
  color: var(--button-text);
  font-size: 13px;
  font-weight: 650;
  line-height: 1.45;
  cursor: pointer;
}
button:hover:not(:disabled) {
  background: var(--accent-hover);
}
button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
button.secondary,
#logout,
.questions button {
  background: transparent;
  border-color: var(--line);
  color: var(--text);
}
button.secondary:hover:not(:disabled),
#logout:hover,
.questions button:hover:not(:disabled) {
  background: var(--accent-soft);
  border-color: var(--accent);
}
button.danger {
  background: var(--danger-soft);
  border-color: var(--danger-line);
  color: var(--danger);
}
button.danger:hover:not(:disabled) {
  border-color: var(--danger);
  background: var(--danger-soft);
}
input:not([type="checkbox"]):not([type="radio"]):not([type="range"]),
select,
textarea {
  display: block;
  width: 100%;
  min-width: 0;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 11px 13px;
  color: var(--text);
  background: var(--surface-soft);
}
input:hover:not(:disabled),
select:hover:not(:disabled),
textarea:hover:not(:disabled) {
  border-color: var(--muted);
}
input:disabled,
select:disabled,
textarea:disabled {
  color: var(--muted);
  cursor: not-allowed;
}
input::placeholder,
textarea::placeholder {
  color: var(--muted);
  opacity: 1;
}
input[type="checkbox"],
input[type="radio"] {
  accent-color: var(--accent);
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
}
input[type="range"] {
  accent-color: var(--accent);
}
textarea {
  resize: vertical;
}
label[for],
legend {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 8px;
}
label {
  cursor: pointer;
}
.login-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 4px 0 16px;
  color: var(--muted);
}
.login-divider::before,
.login-divider::after {
  content: "";
  flex: 1;
  border-top: 1px solid var(--line);
}
.login-card #demo-login {
  width: 100%;
  white-space: normal;
}
.login-card .demo-note {
  margin: 12px 0 20px;
}
body[data-demo="true"] a[href="#history-panel"],
body[data-demo="true"] [data-section="history-panel"],
body[data-demo="true"] [data-open-area="history-panel"],
body[data-demo="true"] #history-panel {
  display: none !important;
}
fieldset {
  border: 0;
  padding: 0;
  margin: 0 0 22px;
  min-width: 0;
}
header {
  min-height: 82px;
  padding: 16px max(24px, calc((100vw - 1480px) / 2 + 24px));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: var(--header);
  border-bottom: 1px solid var(--line);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--text);
  text-decoration: none;
}
.brand strong {
  display: grid;
  place-items: center;
  width: 52px;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--accent-text);
  font-size: 24px;
  font-weight: 750;
  letter-spacing: -1.5px;
}
.brand span {
  font-size: 15px;
  font-weight: 650;
  letter-spacing: -0.3px;
}
.brand small {
  display: block;
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--muted);
}
.header-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-width: 116px;
}
.theme-icon {
  font-size: 19px;
  line-height: 1;
}
main {
  max-width: 1480px;
  margin: auto;
  padding: 24px 28px 12px;
}
.skip-link {
  position: fixed;
  z-index: 100;
  top: -80px;
  left: 16px;
  padding: 12px 20px;
  background: var(--accent);
  color: var(--button-text);
  border-radius: 8px;
}
.skip-link:focus {
  top: 12px;
}
.workspace-nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
.workspace-nav a {
  font-size: 13px;
  text-decoration: none;
}
.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}
.nav-label {
  font-size: 12px;
  color: var(--muted);
}
h1,
h2,
h3,
h4 {
  line-height: 1.2;
  overflow-wrap: anywhere;
}
h1 {
  font-size: clamp(28px, 3.4vw, 42px);
  font-weight: 600;
  letter-spacing: -1.5px;
  margin: 10px 0 14px;
}
h2 {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.5px;
  margin: 0 0 20px;
}
h3 {
  font-size: 15px;
  font-weight: 600;
  margin: 24px 0 12px;
}
h4 {
  font-size: 15px;
  margin: 0 0 12px;
}
p {
  overflow-wrap: anywhere;
}
.intro {
  padding: 30px 0 26px;
  display: flex;
  justify-content: space-between;
  gap: 28px;
  align-items: center;
}
.intro-copy {
  max-width: 64ch;
  color: var(--muted);
  margin: 0;
  font-size: 14px;
}
.eyebrow {
  margin: 0 0 10px;
  font-size: 12px;
  color: var(--muted);
  font-weight: 500;
}
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  vertical-align: middle;
  margin-right: 9px;
}
.journey {
  list-style: none;
  display: flex;
  gap: 24px;
  padding: 0;
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}
.journey li {
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}
.journey b {
  display: grid;
  place-items: center;
  width: 25px;
  height: 25px;
  border: 1px solid var(--line);
  border-radius: 50%;
  font-size: 11px;
  font-weight: 500;
}
.journey [aria-current="step"] {
  color: var(--text);
}
.journey [aria-current="step"] b {
  color: var(--button-text);
  background: var(--accent);
  border-color: var(--accent);
}
.panel {
  min-width: 0;
  padding: 26px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow);
}
.layout {
  display: grid;
  grid-template-columns: 370px minmax(0, 1fr);
  align-items: start;
  gap: 20px;
}
.layout > * {
  min-width: 0;
}
.section-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
}
.section-heading h2 {
  margin-bottom: 0;
}
.section-heading .eyebrow {
  margin-bottom: 7px;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: 1px solid var(--line);
  background: var(--surface-soft);
  border-radius: 6px;
  padding: 5px 9px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 500;
}
.local-badge::before {
  content: "";
  width: 5px;
  height: 5px;
  background: var(--accent);
  border-radius: 50%;
}
.muted {
  color: var(--muted);
  font-size: 13px;
}
.mode {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 16px;
  margin: 10px 0;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  transition:
    border-color 0.2s,
    background-color 0.2s;
}
.mode:has(input:checked) {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.mode input {
  margin-top: 3px;
}
.mode b {
  font-size: 14px;
  font-weight: 600;
}
.mode small {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-top: 5px;
  line-height: 1.5;
}
.provider-choice {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin: 0 0 16px;
}
.provider-choice legend {
  width: 100%;
}
.provider-choice label {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
}
.consent {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  margin-top: 14px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}
.consent input {
  flex: 0 0 auto;
  margin-top: 1px;
}
#start {
  width: 100%;
  margin-top: 12px;
}
.diagnostics {
  margin-top: 22px;
  border-top: 1px solid var(--line);
}
.diagnostics p {
  font-size: 12px;
  color: var(--muted);
}
details {
  border-bottom: 1px solid var(--line);
  padding: 14px 0;
}
summary {
  cursor: pointer;
  color: var(--muted);
  font-size: 13px;
  padding: 4px 0;
}
summary:hover {
  color: var(--text);
}
details[open] > summary {
  margin-bottom: 16px;
  color: var(--text);
}
.messages {
  min-height: 310px;
  max-height: 520px;
  overflow: auto;
  padding: 8px 4px;
  scrollbar-color: var(--line) transparent;
  overscroll-behavior: contain;
}
.empty {
  text-align: center;
  padding: 45px 20px;
  color: var(--muted);
}
.empty h3 {
  font-size: 21px;
  color: var(--text);
  margin-top: 24px;
  letter-spacing: -0.6px;
}
.empty p {
  font-size: 13px;
  max-width: 40ch;
  margin: 12px auto;
}
.empty-icon {
  display: inline-grid;
  place-items: center;
  width: 64px;
  height: 64px;
  border: 1px solid var(--line);
  border-radius: 16px;
  font-size: 24px;
  color: var(--accent-text);
  letter-spacing: -1.5px;
}
.message {
  border: 1px solid var(--line);
  border-left: 2px solid var(--muted);
  border-radius: 0 10px 10px 10px;
  padding: 16px 18px;
  background: var(--surface-soft);
  margin: 0 30px 18px 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.message.user {
  margin-left: 30px;
  margin-right: 0;
  border-left-color: var(--accent);
  background: var(--accent-soft);
}
.message b {
  display: block;
  color: var(--muted);
  font-size: 11px;
  font-weight: 500;
  margin-bottom: 8px;
}
.message.user b {
  color: var(--accent-text);
}
.questions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0;
}
.questions:empty {
  display: none;
}
.questions button {
  text-align: left;
  font-size: 12px;
  padding: 9px 12px;
}
.chat-input {
  display: flex;
  align-items: flex-end;
  gap: 10px;
}
.chat-input textarea {
  flex: 1;
}
.voice-trigger {
  min-width: 44px;
  min-height: 44px;
  padding: 10px;
  font-size: 20px;
  background: var(--accent-soft);
  border: 1px solid var(--accent);
  border-radius: 10px;
  transition: all 0.2s cubic-bezier(0.22, 1, 0.36, 1);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.voice-trigger svg {
  width: 20px;
  height: 20px;
  display: block;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.voice-trigger svg rect {
  fill: currentColor;
  stroke: none;
}
.voice-trigger:hover:not(:disabled) {
  background: var(--accent);
  color: var(--button-text);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(82, 107, 18, 0.2);
}
.voice-trigger:active:not(:disabled) {
  transform: translateY(0);
  transition-duration: 0.08s;
}
.voice-trigger[data-recording="true"] {
  background: var(--danger-soft);
  border-color: var(--danger);
  color: var(--danger);
  animation: pulse-recording 1.5s ease-in-out infinite;
}
@keyframes pulse-recording {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(163, 59, 46, 0.4);
  }
  50% {
    opacity: 0.9;
    transform: scale(0.98);
    box-shadow: 0 0 0 8px rgba(163, 59, 46, 0);
  }
}
.keyboard-hint {
  font-size: 11px;
  color: var(--muted);
  margin: 8px 0 0;
}
#latency:empty {
  display: none;
}
.history {
  margin-top: 24px;
}
.history-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.history-row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}
.history-row:first-child {
  padding-top: 0;
}
.history-row b {
  font-size: 14px;
  font-weight: 600;
}
.history-row small {
  display: block;
  color: var(--muted);
  font-size: 12px;
  margin-top: 5px;
}
#notice,
#status:not(:empty) {
  padding: 14px 18px;
  border: 1px solid var(--danger-line);
  background: var(--danger-soft);
  color: var(--danger);
  border-radius: 10px;
  font-size: 13px;
  margin-bottom: 20px;
}
#notice:empty,
#connection:empty,
#status:empty,
#identity:empty {
  display: none;
}
#connection,
#identity {
  color: var(--muted);
  font-size: 12px;
}
#connection[data-offline="true"] {
  color: var(--danger);
}
.state-note {
  padding: 14px 18px;
  border-left: 2px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 0 8px 8px 0;
  font-size: 13px;
  margin-bottom: 20px;
}
.skeleton {
  display: block;
  width: 100%;
  height: 15px;
  border-radius: 5px;
  background: var(--line);
  margin: 12px 0;
  animation: breathe 1.8s ease-in-out infinite;
}
.skeleton.short {
  width: 62%;
}
@keyframes breathe {
  50% {
    opacity: 0.45;
  }
}
pre {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font-size: 12px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-soft);
}
footer {
  max-width: 80ch;
  margin: 0 auto;
  padding: 28px 0;
  text-align: center;
  color: var(--muted);
  font-size: 11px;
}
.login-page main {
  min-height: calc(100vh - 83px);
  display: grid;
  align-items: center;
  padding-top: 48px;
  padding-bottom: 32px;
}
.login-layout {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: clamp(40px, 7vw, 100px);
  width: 100%;
  max-width: 1080px;
  margin: auto;
  align-items: center;
}
.login-story {
  padding: 16px 0;
}
.login-story h1 {
  font-size: clamp(38px, 4.5vw, 62px);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -2.5px;
  margin: 28px 0 24px;
}
.login-story > p {
  max-width: 44ch;
  color: var(--muted);
  font-size: 15px;
}
.signal-mark {
  display: flex;
  align-items: center;
  gap: 4px;
  height: 48px;
  margin: 40px 0 22px;
}
.signal-mark i {
  width: 4px;
  height: var(--height, 12px);
  background: var(--accent);
  border-radius: 2px;
}
.signal-mark i:nth-child(3n) {
  --height: 24px;
}
.signal-mark i:nth-child(5n) {
  --height: 42px;
}
.signal-mark i:nth-child(4n) {
  --height: 32px;
}
.login-steps {
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
  max-width: 420px;
  margin: 0;
}
.login-steps li {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 15px 0;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--muted);
}
.login-steps b {
  font-family: ui-monospace, Consolas, monospace;
  font-size: 11px;
  font-weight: 400;
  color: var(--accent-text);
}
.login-card {
  padding: 36px;
}
.login-card h2 {
  font-size: 26px;
  margin-bottom: 12px;
}
.login-card > p {
  font-size: 13px;
  color: var(--muted);
}
#login {
  margin-top: 28px;
}
#login input {
  margin-bottom: 20px;
}
#login button {
  width: 100%;
  margin-top: 8px;
}
.login-card > a {
  display: block;
  text-align: center;
  font-size: 12px;
  margin-top: 24px;
}
.login-note {
  margin-top: 28px;
  border-top: 1px solid var(--line);
  padding-top: 20px;
  font-size: 11px !important;
}
.classroom-page main > .panel {
  margin-bottom: 22px;
}
#assign,
#new-user,
#transfer,
#correct {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  align-items: end;
  margin: 22px 0;
}
#assign label,
#new-user label,
#transfer label,
#correct label {
  display: grid;
  gap: 8px;
  font-size: 13px;
}
#assign button,
#new-user button,
#transfer button,
#correct button {
  justify-self: start;
}
#correct label:has(textarea) {
  grid-column: 1 / -1;
}
#assignments > p,
#sessions > p,
#users > p {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
}
.list-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  border-top: 1px solid var(--line);
  padding: 18px 0;
}
.list-row strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
}
.list-row small {
  display: block;
  color: var(--muted);
  font-size: 12px;
  margin-top: 5px;
}
.row-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}
.observation-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 28px;
}
.observation-grid > * {
  min-width: 0;
}
#controls {
  padding: 18px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 10px;
  margin-bottom: 24px;
}
#controls button,
#review > button,
#grant,
#revoke {
  margin: 4px 4px 4px 0;
}
#controls label {
  display: block;
  margin-top: 16px;
}
#observation #messages > p,
#criteria article,
#review-content article {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface-soft);
  margin-bottom: 12px;
}
#criteria h3 {
  margin-top: 0;
}
#monitor-key {
  display: block;
  overflow-wrap: anywhere;
  color: var(--accent-text);
  margin: 16px 0;
}
.fact-list {
  margin: 0;
}
.fact-list > div {
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}
.fact-list dt {
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 5px;
}
.fact-list dd {
  margin: 0;
  font-size: 14px;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.monitor-page main {
  max-width: 1200px;
}
.monitor-connected .intro {
  padding: 20px 0;
}
.monitor-connected .intro h1 {
  font-size: 24px;
}
.monitor-connected .intro h1 br {
  display: none;
}
.monitor-connected .intro-copy {
  display: none;
}
#connect {
  max-width: 600px;
}
#connect button {
  margin-top: 16px;
}
#screen {
  font-size: clamp(18px, 2vw, 26px);
}
#screen:empty,
#label:empty {
  display: none;
}
.monitor-readout {
  padding: 28px 0;
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  border-bottom: 1px solid var(--line);
}
.monitor-readout small {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 8px;
}
.monitor-readout b {
  font-weight: 500;
  font-size: clamp(24px, 4vw, 44px);
  font-variant-numeric: tabular-nums;
  letter-spacing: -1px;
}
dialog {
  width: min(480px, calc(100% - 32px));
  max-height: calc(100% - 32px);
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 28px;
  background: var(--surface);
  color: var(--text);
}
dialog::backdrop {
  background: #00000099;
}
dialog p {
  color: var(--muted);
  font-size: 14px;
}
dialog form {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}
@media (max-width: 1100px) {
  .journey {
    gap: 10px;
  }
  .intro {
    align-items: flex-start;
    flex-direction: column;
  }
  .layout {
    grid-template-columns: 330px minmax(0, 1fr);
  }
  .panel {
    padding: 22px;
  }
}
@media (max-width: 850px) {
  header {
    flex-wrap: wrap;
    padding: 16px 20px;
  }
  main {
    padding: 20px 16px 12px;
  }
  .layout,
  .observation-grid {
    grid-template-columns: 1fr;
  }
  .login-layout {
    grid-template-columns: 1fr;
    max-width: 540px;
    gap: 32px;
  }
  .login-story h1 {
    font-size: 42px;
  }
  .login-steps,
  .signal-mark {
    display: none;
  }
  .login-page main {
    align-items: start;
    padding-top: 28px;
  }
  #assign,
  #new-user,
  #transfer,
  #correct {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 480px) {
  header {
    gap: 14px;
  }
  .header-actions {
    width: 100%;
    justify-content: space-between;
    gap: 6px;
  }
  .header-actions .local-badge {
    font-size: 10px;
    padding: 5px 6px;
  }
  .panel,
  .login-card {
    padding: 20px;
  }
  .nav-label {
    display: none;
  }
  .section-heading {
    flex-wrap: wrap;
  }
  .history-row,
  .list-row {
    flex-wrap: wrap;
    gap: 12px;
  }
  .chat-input {
    flex-direction: column;
    align-items: stretch;
  }
  #assign,
  #new-user,
  #transfer,
  #correct {
    grid-template-columns: 1fr;
  }
  .message {
    margin-right: 12px;
    padding: 14px;
  }
  .message.user {
    margin-left: 12px;
  }
  .journey {
    width: 100%;
    justify-content: space-between;
    gap: 6px;
    font-size: 11px;
  }
  .journey li {
    gap: 5px;
  }
  button {
    max-width: 100%;
  }
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
    scroll-behavior: auto !important;
  }
}

:root {
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}
body {
  background: var(--bg);
}
h1,
h2,
h3 {
  text-wrap: balance;
}
button,
summary,
.mode,
.service-grid label {
  transition:
    background-color 0.2s,
    border-color 0.2s,
    color 0.2s,
    box-shadow 0.2s,
    transform 0.24s var(--ease-out);
}
button:active:not(:disabled) {
  transform: scale(0.98);
}
button:focus-visible,
summary:focus-visible {
  outline-offset: 5px;
}
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline-offset: 2px;
  border-color: var(--accent);
  background: var(--surface);
}
.panel {
  border-radius: 20px;
}
.brand strong {
  border-radius: 14px 14px 14px 4px;
  background: var(--accent-soft);
  border-color: transparent;
  transition: border-radius 0.3s var(--ease-out);
}
.brand:hover strong {
  border-radius: 14px 4px 14px 14px;
}
.brand:focus-visible strong {
  border-color: var(--accent);
}
.theme-icon {
  transition: transform 0.35s var(--ease-out);
}
.theme-toggle:hover .theme-icon {
  transform: rotate(25deg);
}
.workspace-nav a {
  position: relative;
  padding-block: 8px;
}
.workspace-nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.24s var(--ease-out);
}
.workspace-nav a:hover::after,
.workspace-nav a:focus-visible::after {
  transform: scaleX(1);
}
details > summary {
  list-style: none;
  position: relative;
  padding-right: 32px;
}
details > summary::-webkit-details-marker {
  display: none;
}
details > summary::before {
  content: "";
  position: absolute;
  right: 8px;
  top: 0.65em;
  width: 8px;
  height: 8px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  transition: transform 0.24s var(--ease-out);
}
details[open] > summary::before {
  transform: rotate(225deg);
}
.history-row,
.list-row {
  transition:
    background-color 0.2s,
    border-color 0.2s;
  border-radius: 10px;
}
.history-row:focus-within,
.list-row:focus-within {
  background: var(--accent-soft);
}
.classroom-page .intro,
.monitor-page .intro {
  padding-block: 48px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 28px;
}
.classroom-page .intro h1,
.monitor-page .intro h1 {
  font-size: clamp(32px, 4.4vw, 58px);
  max-width: 20ch;
  letter-spacing: -0.045em;
}
.classroom-page .panel {
  border-top: 3px solid var(--line);
}
.classroom-page .panel:focus-within {
  border-top-color: var(--accent);
}
.login-card {
  border-top: 3px solid var(--accent);
}
.login-story h1 {
  letter-spacing: -0.05em;
}
.login-story .signal-mark i {
  transition: transform 0.4s var(--ease-out);
  transform-origin: center;
}
.login-story:hover .signal-mark i:nth-child(3n) {
  transform: scaleY(0.65);
}
.login-story:hover .signal-mark i:nth-child(3n + 1) {
  transform: scaleY(1.2);
}
dialog[open] {
  animation: dialog-enter 0.22s var(--ease-out);
}
@keyframes dialog-enter {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@media (hover: hover) and (pointer: fine) {
  .history-row:hover,
  .list-row:hover {
    background: var(--surface-soft);
  }
  button:hover:not(:disabled) {
    box-shadow: 0 3px 0 color-mix(in srgb, var(--accent) 16%, transparent);
  }
}
@media (max-width: 600px) {
  .classroom-page .intro,
  .monitor-page .intro {
    padding-block: 26px;
  }
  .panel {
    border-radius: 16px;
  }
}

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

.field-help,
.form-hint {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.form-hint {
  margin: -6px 0 18px;
}

.scenario-heading > div {
  min-width: 0;
}

.random-scenario-card {
  margin-block: 18px;
  padding: 18px;
  border: 1px solid var(--accent);
  border-radius: 12px;
  background: var(--accent-soft);
  text-align: left;
}

.random-scenario-card h3 {
  margin: 0;
  font-size: 16px;
  color: var(--accent-text);
}

.random-scenario-card p {
  margin: 8px 0 16px;
  max-width: 65ch;
  color: var(--muted);
  font-size: 13px;
}

.random-scenario-card button {
  max-width: 100%;
  white-space: normal;
}

label.search-field {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 14px 0 8px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface-soft);
}

.search-field:focus-within {
  border-color: var(--accent);
  background: var(--surface);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.search-field input[type="search"] {
  min-width: 0;
  margin: 0;
  padding: 11px 0;
  border: 0;
  outline: 0;
  background: transparent;
  box-shadow: none;
}

.search-field input:focus-visible {
  border-color: transparent;
  background: transparent;
  box-shadow: none;
}

.search-icon {
  color: var(--muted);
  font-size: 20px;
  line-height: 1;
}

.search-field kbd {
  flex: 0 0 auto;
  padding: 2px 6px;
  border: 1px solid var(--line);
  border-radius: 5px;
  color: var(--muted);
  font:
    11px/1.4 ui-monospace,
    SFMono-Regular,
    Consolas,
    monospace;
}

.empty-state {
  margin: 12px 0;
  padding: 18px;
  border: 1px dashed var(--line);
  border-radius: 10px;
  color: var(--muted);
  text-align: center;
}

.password-field {
  position: relative;
  display: flex;
  align-items: center;
}

.password-field input {
  width: 100%;
  padding-right: 92px;
}
#login .password-field input {
  margin-bottom: 0;
}

#login .field-action {
  position: absolute;
  right: 6px;
  padding: 6px 9px;
  border: 0;
  background: transparent;
  color: var(--accent-text);
  font-size: 12px;
  box-shadow: none;
  width: auto;
  margin: 0;
}

#login .field-action:hover:not(:disabled) {
  background: var(--accent-soft);
  box-shadow: none;
  transform: none;
}

#notice:not(:empty),
#connection:not(:empty),
#status:not(:empty) {
  margin: 12px 0;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface-soft);
}

#notice:not(:empty),
#status:not(:empty) {
  border-color: var(--danger-line);
  background: var(--danger-soft);
  color: var(--danger);
}

#connection[data-offline="true"] {
  border-color: var(--danger-line);
  background: var(--danger-soft);
  color: var(--danger);
}

#connection[data-offline="false"] {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--line));
  background: var(--accent-soft);
  color: var(--accent-text);
}

.scenario-gallery {
  scrollbar-width: thin;
}

.scenario-tile[aria-pressed="true"] {
  box-shadow: inset 0 0 0 2px var(--accent);
}

.operator-page #scenario {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.classroom-page main > .panel {
  box-shadow: var(--shadow);
}

.classroom-page form,
.monitor-page form {
  gap: 14px;
}

.classroom-page h2,
.monitor-page h2 {
  text-wrap: balance;
}

.monitor-help {
  display: block;
  padding: 24px;
  border: 1px dashed var(--line);
  border-radius: 12px;
  color: var(--muted);
  text-align: center;
}
.monitor-connected .monitor-help {
  display: none;
}

@media (max-width: 600px) {
  .search-field kbd {
    display: none;
  }

  .field-help {
    max-width: 30ch;
  }

  .scenario-gallery {
    grid-template-columns: 1fr;
    max-height: 320px;
  }

  .search-field input {
    font-size: 16px;
  }

  .password-field input {
    padding-right: 82px;
  }
}