/* Neutral surfaces; blue trust actions and semantic learning colors. */
/* Colours and fonts live in tokens.css. */
html { font-size: 100%; }
html[data-font="small"] { font-size: 90%; }
html[data-font="larger"] { font-size: 115%; }
html[data-font="largest"] { font-size: 130%; }
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; background: var(--cp-bg); color: var(--cp-text); font: 500 1rem/1.6 var(--cp-font-body); }
button, input, select, textarea { font: inherit; }
button, .button-link { min-height: 44px; padding: 8px 12px; border: 1px solid var(--cp-border); border-radius: .625rem; background: var(--cp-surface); color: var(--cp-text); cursor: pointer; }
button:hover:not(:disabled), .button-link:hover { background: var(--cp-accent-soft); border-color: var(--cp-accent); }
button:disabled { opacity: .55; cursor: not-allowed; }
button.primary, .button-link { background: var(--cp-brand-gradient); color: #fff; border-color: transparent; font-weight: 600; }
button.primary:hover:not(:disabled), .button-link:hover { background: var(--cp-accent-hover); color: var(--cp-accent-fg); }
a { color: var(--cp-link); overflow-wrap: anywhere; }
a[aria-disabled="true"] { opacity: .55; cursor: not-allowed; }
:focus-visible { outline: 3px solid var(--cp-accent); outline-offset: 3px; }
input, select, textarea { padding: 10px 12px; color: var(--cp-text); background: var(--cp-surface); border: 1px solid var(--cp-border-strong); border-radius: .625rem; min-width: 0; max-width: 100%; }
input:disabled, select:disabled, textarea:disabled { background: var(--cp-surface-soft); }
label { display: block; margin: 12px 0 4px; font-weight: 600; }
h1, h2, h3 { line-height: 1.3; }
h1 { font-size: 1.25rem; margin: 0; overflow-wrap: anywhere; }
h2 { font-size: 1.05rem; }
h3 { font-size: 1rem; }
p { margin: 8px 0; }
.small { color: var(--cp-text-muted); font-size: .8rem; }
.error { color: var(--cp-danger); min-height: 1.5em; overflow-wrap: anywhere; }
.error:empty { min-height: 0; margin: 0; }
.skip-link { position: fixed; top: -100px; left: 12px; z-index: 100; padding: 12px; background: var(--cp-surface); }
.skip-link:focus { top: 12px; }
.skip-link:not(:focus) { clip-path: inset(50%); width: 1px; height: 1px; padding: 0; overflow: hidden; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.app { display: grid; grid-template-columns: 220px minmax(0, 1fr); height: 100vh; height: 100dvh; overflow: hidden; }
.sidebar { display: flex; flex-direction: column; background: var(--cp-bg-elevated); border-right: 1px solid var(--cp-border); min-width: 0; min-height: 0; padding: 14px 10px; gap: 12px; overflow-y: auto; }
.brand { display: flex; align-items: center; gap: 10px; }
.logo { display: grid; place-items: center; flex: none; width: 32px; height: 32px; border-radius: .625rem; font-weight: 800; background: var(--cp-brand-gradient); color: #fff; }
.side-label { font-size: .85rem; margin: 4px 0 0; color: var(--cp-text-muted); }
.convos { flex: 1; overflow-y: auto; min-height: 60px; }
.convo { display: flex; align-items: center; gap: 4px; margin: 4px 0; border-radius: .625rem; }
.convo.active { background: var(--cp-accent-soft); outline: 1px solid var(--cp-accent); }
.convo-open { flex: 1; min-width: 0; text-align: left; background: var(--cp-bg-elevated); border: 0; }
.convo.active .convo-open { background: var(--cp-accent-soft); }
.convo-title { display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.convo-meta { display: block; font-size: .75rem; color: var(--cp-text-muted); }
.convo-delete { flex: 0 0 28px; width: 28px; height: 28px; min-height: 28px; margin-inline-end: 4px; padding: 0; display: grid; place-items: center; font-size: 16px; line-height: 1; color: var(--cp-text-muted); background: transparent; border-color: transparent; border-radius: 6px; }
@media (pointer: coarse) { .convo-delete { flex-basis: 44px; width: 44px; height: 44px; min-height: 44px; } }
.side-foot { border-top: 1px solid var(--cp-border); padding-top: 12px; overflow-wrap: anywhere; }
.study-streak { margin: 10px 0; padding: 10px; border: 1px solid var(--cp-border-strong); border-radius: .625rem; background: var(--cp-accent-soft); }
.streak-heading { display: flex; align-items: center; flex-wrap: wrap; gap: .3rem; line-height: 1.3; }
.streak-heading strong { font-size: 1.5rem; }
.streak-heading span { font-size: .85rem; }
.streak-flame { width: 1.25rem; height: 1.5rem; flex: none; color: var(--cp-accent); }
.study-streak p { margin: 5px 0; }
.streak-utc { cursor: help; }
#retryStreak { display: block; padding: 4px 0; text-align: left; }
.account-nav { display: grid; grid-template-columns: minmax(0, 1fr); gap: 6px; }
.main { display: flex; flex-direction: column; min-width: 0; min-height: 0; }
.topbar { flex: none; min-height: 64px; padding: 8px 20px; border-bottom: 1px solid var(--cp-border); background: var(--cp-bg); display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; }
.heading { flex: 1; min-width: 0; }
.heading h1 { font-size: 1rem; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.heading p { margin: 0; font-size: .75rem; color: var(--cp-brand-teal); }
.toolbar, .mobile-nav, .recovery { display: flex; flex-wrap: wrap; gap: 8px; }
.mobile-nav { display: none; min-width: 44px; }
.toolbar { align-items: stretch; flex-wrap: wrap; }
.toolbar button { white-space: normal; }
.study-toolbar { display: flex; flex-wrap: wrap; flex: none; align-items: center; gap: 4px 6px; padding: 4px 20px; border-bottom: 1px solid var(--cp-border); background: var(--cp-bg-elevated); }
.study-toolbar button, .study-toolbar select { height: 44px; min-height: 44px; min-width: 44px; font-size: .85rem; white-space: nowrap; }
.study-toolbar select { width: 120px; }
.quiet-link { padding: 8px; font-size: .8rem; text-decoration: none; }
.status-bar { flex: none; padding: 2px 20px; background: var(--cp-bg-elevated); font-size: .75rem; }
#appStatus { min-height: 1.4em; margin: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--cp-text-muted); }
.status-bar .error:not(:empty) { margin: 6px 0; }
.recovery { margin-bottom: 4px; }
.recovery:has([hidden]):not(:has(button:not([hidden]))) { margin: 0; }
.workspace { flex: 1; display: flex; min-height: 0; }
.builder select { width: 100%; }
.dialog-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.dialog-heading h2 { margin: 0; }
.dialog-heading button { flex: none; min-width: 44px; }
.tool-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.prompt-preview { padding: 12px; font-size: .85rem; border: 1px dashed var(--cp-border-strong); border-radius: .625rem; background: var(--cp-surface); }
.stats { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.stat { text-align: center; padding: 8px; border: 1px solid var(--cp-border); border-radius: .625rem; background: var(--cp-surface); }
.stat b { display: block; font-size: 1.4rem; color: var(--cp-accent); }
.stat span { font-size: .75rem; color: var(--cp-text-muted); }
.chat { flex: 1; display: flex; flex-direction: column; min-width: 0; min-height: 0; }
.study-content { flex: 1 1 0; min-height: 0; overflow-y: auto; overscroll-behavior: contain; padding: 24px; scrollbar-gutter: stable; }
.welcome { max-width: 860px; margin: 12px auto 24px; padding: 24px 12px; border: 0; border-radius: 0; background: transparent; }
.welcome .eyebrow { font-size: .7rem; letter-spacing: .12em; color: var(--cp-brand-teal); margin: 0; }
.welcome h2 { font-size: clamp(1.3rem, 2.3vw, 1.8rem); margin: 10px 0; }
.welcome > p:not(.eyebrow) { max-width: 600px; color: var(--cp-text-soft); }
.prompt-chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0; }
.prompt-chips button { font-size: .85rem; border-color: var(--cp-border-strong); }
.mini-stats { display: flex; flex-wrap: wrap; gap: 6px 18px; font-size: .8rem; color: var(--cp-text-muted); margin-bottom: 8px; }
.mini-stats b { color: var(--cp-accent); }
.msg, .mock-panel { max-width: 860px; margin: 0 auto 20px; overflow-wrap: anywhere; }
.msg { padding: 12px 16px; border: 0; border-radius: 8px; background: transparent; }
.msg.bot { border-bottom: 1px solid var(--cp-border); border-radius: 0; padding-bottom: 24px; }
.msg.user { margin-left: max(12%, calc((100% - 860px) / 2)); background: var(--cp-accent-soft); }
.msg-label { font-weight: 600; font-size: .8rem; color: var(--cp-text-muted); margin-bottom: 8px; }
.user-content { white-space: pre-wrap; }
.pending { border-style: dashed; }
.stream-preview { min-height: 1.5em; }
.stream-preview:not(:empty)::after { content: " ▍"; color: var(--cp-accent); }
.markdown h1 { font-size: 1.4rem; }
.markdown h2 { font-size: 1.2rem; }
.markdown h3, .markdown h4 { font-size: 1rem; }
.markdown code, .markdown pre { font-family: Consolas, "Courier New", Courier, monospace; background: var(--cp-surface-soft); }
.markdown code { padding: 1px 4px; border-radius: 4px; }
.markdown pre { padding: 12px; border: 1px solid var(--cp-border); border-radius: .625rem; overflow-x: auto; }
.markdown pre code { padding: 0; }
.markdown blockquote { margin: 12px 0; border-left: 3px solid var(--cp-accent); padding: 4px 12px; background: var(--cp-accent-soft); }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: .85rem; }
th, td { border: 1px solid var(--cp-border); padding: 8px; text-align: left; }
th { background: var(--cp-surface-soft); }
.composer { flex: none; padding: 8px 20px; border-top: 1px solid var(--cp-border); background: var(--cp-bg-elevated); }
.composer > *, .composer form { max-width: 860px; margin-left: auto; margin-right: auto; }
.composer label { margin-top: 0; }
.compose-row { display: flex; align-items: flex-end; gap: 8px; }
.compose-row textarea { flex: 1; width: 100%; resize: none; height: auto; min-height: 0; line-height: 1.45; padding: 10px 12px; overflow-y: hidden; scrollbar-width: thin; scrollbar-color: var(--cp-border-strong) var(--cp-surface); }
.compose-row textarea:placeholder-shown { white-space: nowrap; text-overflow: ellipsis; overflow-x: hidden; }
.compose-row textarea::-webkit-scrollbar { width: 6px; }
.compose-row textarea::-webkit-scrollbar-thumb { border-radius: 6px; background: var(--cp-border-strong); }
.compose-row textarea::-webkit-scrollbar-track { background: var(--cp-surface); }
.compose-row textarea::-webkit-scrollbar-button { display: none; width: 0; height: 0; }
.compose-row button { min-height: 44px; flex: none; }
.icon-button { display: grid; place-items: center; width: 44px; padding: 8px; }
.icon-button svg { fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; }
.compose-foot { display: flex; align-items: center; gap: 8px; min-height: 28px; font-size: .75rem; color: var(--cp-text-muted); }
.compose-foot > :first-child { margin-right: auto; }
.inline-button { min-height: 44px; border: 0; background: transparent; padding: 2px 4px; font-size: .75rem; color: var(--cp-link); }
.voice-notification { margin: 0 auto; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.voice-notification:empty { display: none; }
.voice-controls { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.voice-controls label { font-size: .8rem; margin: 0; }
.voice-controls select { padding: 8px; }
.voice-controls button { font-size: .85rem; }
[aria-pressed="true"] { border-color: var(--cp-accent); background: var(--cp-accent-soft); }
#micBtn[aria-pressed="true"] { border-color: var(--cp-brand-teal); color: var(--cp-brand-teal); }
#voiceStatus:empty, #readStatus:empty { margin: 0; }
dialog { width: min(520px, calc(100% - 24px)); max-height: calc(100dvh - 32px); overflow-y: auto; border: 1px solid var(--cp-border); border-radius: 16px; padding: 24px; background: var(--cp-surface); color: var(--cp-text); box-shadow: var(--cp-shadow); }
dialog::backdrop { background: var(--cp-overlay); }
dialog input, dialog select { width: 100%; }
dialog textarea { width: 100%; resize: none; font-family: Consolas, monospace; }
dialog h2 { font-size: 1.4rem; margin-top: 0; }
dialog .primary { margin-top: 8px; }
#startBtn { width: 100%; }
.text-button { border: 0; color: var(--cp-link); text-decoration: underline; margin-top: 8px; }
.mock-panel { padding: 20px; border: 1px solid var(--cp-border); border-radius: 16px; background: var(--cp-surface); }
.mock-meta { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.timer { font-family: Consolas, "Courier New", Courier, monospace; font-size: 1.25rem; font-weight: 700; }
.mock-question { border: 0; padding: 0; margin: 16px 0; min-width: 0; }
.mock-question legend { font-size: 1.1rem; font-weight: 600; padding: 0; }
.mock-option { display: flex; align-items: flex-start; gap: 12px; padding: 12px; margin: 8px 0; border: 1px solid var(--cp-border-strong); border-radius: .625rem; font-weight: 400; cursor: pointer; }
.mock-option:has(input:checked) { background: var(--cp-accent-soft); border-color: var(--cp-accent); }
.mock-option input { width: 20px; height: 20px; margin-top: 3px; flex: none; accent-color: var(--cp-accent); }
.feedback { border-left: 4px solid var(--cp-accent); padding: 8px 16px; margin: 16px 0; background: var(--cp-surface-soft); }
.feedback.correct { border-color: var(--cp-success); }
.feedback.incorrect { border-color: var(--cp-danger); }
.report-score { font-size: 1.8rem; font-weight: 700; color: var(--cp-accent); }
.warning { border-left: 4px solid var(--cp-warning); padding: 8px 12px; }
.noscript { position: fixed; inset: 0; padding: 32px; background: var(--cp-surface); }
.landing { max-width: 1100px; margin: auto; padding: 32px 24px; }
.landing header { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.landing .hero { max-width: 760px; padding: 64px 0 40px; }
.landing h1 { font-size: clamp(2rem, 5vw, 3.5rem); letter-spacing: -.025em; }
.landing .hero h1 { color: var(--cp-text); }
.landing .hero .eyebrow { color: var(--cp-brand-teal); }
.landing .eyebrow { color: var(--cp-accent); font-weight: 600; }
.landing .cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.landing article { padding: 24px 0; background: transparent; border-top: 2px solid var(--cp-border); }
.landing .privacy { margin: 32px 0; padding: 24px 0; border-top: 1px solid var(--cp-border); }
.button-link { display: inline-flex; text-decoration: none; align-items: center; }
.reports { max-width: 1120px; margin: 0 auto; padding: 24px; }
.reports-header { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 24px; }
.reports-header nav { display: flex; align-items: center; gap: 12px; }
.report-section { border-top: 1px solid var(--cp-border); background: var(--cp-bg-elevated); padding: 24px; margin: 24px 0; min-width: 0; }
.report-section h2 { margin-top: 0; }
.report-tabs { display: flex; gap: 8px; margin-bottom: 16px; }
.date-controls { display: flex; flex-wrap: wrap; align-items: end; gap: 12px; }
.date-controls label { margin-top: 0; }
.date-controls > div { flex: 1 1 180px; }
.date-controls input { width: 100%; }
.date-controls select { width: 100%; min-height: 44px; }
.report-exports { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0; }
.report-section summary { min-height: 44px; padding: 10px 0; cursor: pointer; color: var(--cp-link); }
.report-section td .small { display: block; font-size: .75rem; }
.report-section .account-drilldown { text-align: left; overflow-wrap: anywhere; max-width: 180px; }
.metrics-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin: 20px 0; }
.metric { padding: 12px 0; border-bottom: 1px solid var(--cp-border); min-width: 0; }
.metric dt { color: var(--cp-text-muted); font-size: .8rem; }
.metric dd { margin: 6px 0 0; font-size: 1.5rem; font-weight: 700; color: var(--cp-accent); overflow-wrap: anywhere; }
.metrics-grid.compact .metric dd { font-size: 1.1rem; }
@media (min-width: 900px) {
  .metrics-grid.compact { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
.report-note { border-left: 3px solid var(--cp-brand-teal); padding-left: 12px; color: var(--cp-text-soft); }
.report-section caption { text-align: left; color: var(--cp-text-muted); padding: 8px 0; }
.report-section th { white-space: nowrap; }
.report-section td { overflow-wrap: anywhere; }
.report-section .table-wrap { max-width: 100%; }
.account-form { max-width: 440px; }
.account-form input { width: 100%; }
.preferences-button { min-width: 44px; padding: 8px; }
[data-preferences] { display: inline-flex; min-width: 0; }
.auth-preferences { float: right; margin: 0 0 8px 12px; }
.preference-notice { font-size: .8rem; color: var(--cp-warning); overflow-wrap: anywhere; }
.targeted-study { max-width: 860px; margin: 0 auto 24px; border-left: 3px solid var(--cp-brand-violet); padding: 12px 16px; }
.targeted-study button { margin: 4px; }
.domain-chart { display: grid; gap: 24px; margin: 28px 0; }
.domain-item { min-width: 0; border-bottom: 1px solid var(--cp-border); padding-bottom: 20px; }
.domain-item h3 { overflow-wrap: anywhere; margin: 0 0 8px; }
.evidence-measure { min-width: 0; width: 100%; --evidence-color: var(--cp-text-muted); }
.evidence-measure.signal-strong { --evidence-color: var(--cp-practice-strong); }
.evidence-measure.signal-building { --evidence-color: var(--cp-practice-building); }
.evidence-measure.signal-review { --evidence-color: var(--cp-practice-review); }
.evidence-measure.signal-weak { --evidence-color: var(--cp-practice-weak); }
.evidence-bar { display: block; appearance: none; width: 100%; height: 12px; margin-top: 12px; background: var(--cp-surface-soft); border: 1px solid var(--cp-border-strong); border-radius: 6px; overflow: hidden; }
.evidence-bar::-webkit-meter-bar { background: var(--cp-surface-soft); border: 0; border-radius: 5px; }
.evidence-bar::-webkit-meter-optimum-value { background: var(--evidence-color); }
.evidence-bar::-moz-meter-bar { background: var(--evidence-color); }
.evidence-insufficient { border-style: dashed; }
.domain-signal .evidence-measure { grid-column: 1 / -1; }
.navigation-status { position: fixed; bottom: 16px; left: 50%; transform: translateX(-50%); z-index: 100;
  width: max-content; max-width: calc(100vw - 32px); padding: 12px 18px; margin: 0; border: 1px solid var(--cp-border-strong);
  border-radius: 10px; background: var(--cp-bg-elevated); color: var(--cp-text); box-shadow: var(--cp-shadow); }
#exploreStatus:empty { display: none; }
#exploreContent[aria-busy="true"] { min-height: 160px; }
.route-enter { animation: route-arrive 160ms ease-out both; }
@keyframes route-arrive { from { opacity: .88; transform: translateY(4px); } to { opacity: 1; transform: none; } }
.app > .explore-page { width: 100%; min-width: 0; overflow-y: auto; }
.route-pending { padding: 32px; }
.sidebar.exploring > :is(#newChat, .side-label, #convos, .side-foot) { display: none; }
@media (prefers-reduced-motion: reduce) {
  .route-enter { animation: none; }
}
@media (max-width: 800px) {
  .app.exploring > .explore-page, .app > .route-pending { padding-top: 64px; }
}
.domain-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
.domain-actions a { display: inline-flex; min-height: 44px; align-items: center; border: 1px solid var(--cp-border-strong); border-radius: 6px; padding: 8px 12px; font-size: .85rem; text-decoration: none; }
.welcome a, .mock-report a { display: inline-flex; align-items: center; min-height: 44px; }
.check-label { display: flex; align-items: center; gap: 8px; min-height: 44px; font-weight: 400; }
.check-label input { width: 20px; height: 20px; accent-color: var(--cp-accent); }
#progressExam { min-width: 140px; }
.reports-header nav { flex-wrap: wrap; }
.landing nav { display: flex; flex-wrap: wrap; gap: 6px; }
.reports-header a, .side-foot a { min-height: 44px; display: inline-flex; align-items: center; }
.toolbar :is(a, button), .account-nav :is(a, button), .reports-header nav :is(a, button), .landing nav :is(a, button), .preferences-button {
  display: inline-flex; align-items: center; justify-content: center; min-height: 44px;
  margin: 0; padding: 7px 10px; border: 1px solid var(--cp-border-strong); border-radius: .5rem;
  background: transparent; color: var(--cp-text-soft); font-size: .85rem; font-weight: 500;
  line-height: 1.3; text-decoration: none; text-align: center; white-space: normal; overflow-wrap: anywhere;
}
.toolbar :is(a, button):hover:not(:disabled), .account-nav :is(a, button):hover:not(:disabled), .reports-header nav :is(a, button):hover:not(:disabled), .landing nav :is(a, button):hover:not(:disabled),
.reports-header nav [aria-current], .toolbar [aria-expanded="true"] {
  border-color: var(--cp-accent); background: var(--cp-accent-soft); color: var(--cp-text);
}
.toolbar [data-preferences] button { width: 100%; }
.reports h2[tabindex] { scroll-margin-top: 16px; }
.report-section #domainRows th { white-space: normal; overflow-wrap: anywhere; }
@media (max-width: 400px) {
  .toolbar { gap: 4px; }
  .topbar { gap: 6px; }
  .compose-foot { flex-wrap: wrap; gap: 0 6px; }
  .metrics-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (max-height: 500px) and (max-width: 800px) {
  .app { height: auto; min-height: 100dvh; overflow: visible; }
  .study-content { flex: none; max-height: 45dvh; min-height: 100px; }
  .composer { position: static; }
}
@media (max-width: 800px) {
  .app { grid-template-columns: minmax(0, 1fr); }
  .mobile-nav { display: block; flex: none; }
  .sidebar { display: none; position: fixed; inset: 64px auto 0 0; z-index: 20; width: min(300px, calc(100vw - 48px)); box-shadow: var(--cp-shadow); }
  .sidebar.open { display: flex; }
  .landing .cards { grid-template-columns: 1fr; }
  .topbar .toolbar { flex: 1 0 100%; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; }
  .topbar .heading { flex-basis: calc(100% - 60px); }
  .topbar .heading h1 { margin: 0; }
  .topbar .heading p { display: none; }
}
@media (max-width: 520px) {
  .topbar { padding: 8px 12px; gap: 8px; }
  .study-toolbar { padding: 4px 12px; }
  .study-toolbar select { width: 110px; }
  .study-toolbar button { padding: 8px; }
  .composer { padding: 8px 12px max(8px, env(safe-area-inset-bottom)); }
  .study-content { padding: 16px 12px; }
  .status-bar { padding: 2px 12px; }
  .mock-panel { padding: 12px; }
  .welcome { padding: 18px; margin-top: 0; }
  .prompt-chips { gap: 6px; }
  .prompt-chips button { font-size: .8rem; }
  #messageCount { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
  .msg.user { margin-left: 16px; }
  dialog { padding: 20px; }
  .landing .hero { padding-top: 40px; }
  .reports { padding: 16px 12px; }
  .report-section { padding: 16px; }
  .metrics-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .metric { padding: 12px; }
  .metric dd { font-size: 1.2rem; }
}
.home-intro h2 { font-size: 1.6rem; margin: 8px 0; }
.home-overview { padding-top: 8px; }
.next-step { padding: 16px; margin: 20px 0; background: var(--cp-surface-soft); border: 1px solid var(--cp-border); border-radius: 16px; }
.next-step h3, .next-step p { margin: 0 0 12px; }
.next-step > p:last-child { font-size: .85rem; margin: 12px 0 0; color: var(--cp-text-muted); }
.next-step .button-link { display: inline-flex; align-items: center; text-decoration: none; }
.heatmap-heading { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; justify-content: space-between; }
.daily-calendar { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 6px; max-width: 490px; }
.daily-weekdays { display: grid; grid-template-rows: repeat(7, 1fr); gap: 5px; padding: 6px 0; font-size: .65rem; color: var(--cp-text-muted); }
.daily-weekdays span { display: flex; align-items: center; }
.daily-grid { display: grid; grid-template-rows: repeat(7, 1fr); grid-auto-flow: column; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 5px; padding: 6px; }
.day-square { aspect-ratio: 1; width: 100%; min-width: 0; min-height: 0; padding: 0; border-radius: 4px; border: 1px solid var(--cp-border-strong); background: var(--cp-surface-soft); }
.day-square[aria-pressed="true"] { outline: 2px solid var(--cp-text); outline-offset: 1px; }
.day-square:focus-visible { outline: 3px solid var(--cp-accent); outline-offset: 2px; }
.level-unknown, .level-limited { background: repeating-linear-gradient(135deg, var(--cp-surface) 0 3px, var(--cp-border) 3px 4px); }
.level-zero { background: var(--cp-surface-soft); }
.level-low { background: var(--cp-activity-low); }
.level-medium { background: var(--cp-activity-medium); }
.level-high { background: var(--cp-activity-high); }
.level-peak { background: var(--cp-activity-peak); }
.level-strong { background: var(--cp-practice-strong); }
.level-building { background: var(--cp-practice-building); }
.level-review { background: var(--cp-practice-review); }
.level-weak { background: var(--cp-practice-weak); }
.heatmap-legend { display: flex; flex-wrap: wrap; gap: 12px; margin: 12px 0; font-size: .85rem; }
.heatmap-legend > span { display: inline-flex; gap: 5px; align-items: center; }
.legend-square { display: inline-block; width: 16px; height: 16px; border: 1px solid var(--cp-border-strong); border-radius: 3px; }
.day-detail { min-height: 3.2em; padding: 8px; border-left: 3px solid var(--cp-border-strong); }
.exam-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 360px), 1fr)); gap: 16px; }
.exam-card { border: 1px solid var(--cp-border); border-radius: 16px; padding: 16px; min-width: 0; }
.exam-card h3 { font-size: 1.2rem; margin-top: 0; }
.domain-signal { display: grid; gap: 4px; border-left: 4px solid var(--cp-border-strong); padding: 8px 12px; margin-top: 12px; overflow-wrap: anywhere; font-size: .9rem; }
.signal-strong { border-color: var(--cp-practice-strong); }
.signal-strong strong { color: var(--cp-practice-strong); }
.signal-building { border-color: var(--cp-practice-building); }
.signal-building strong { color: var(--cp-practice-building); }
.signal-review { border-color: var(--cp-practice-review); }
.signal-review strong { color: var(--cp-practice-review); }
.signal-weak { border-color: var(--cp-practice-weak); }
.signal-weak strong { color: var(--cp-practice-weak); }
.account-details > summary { font-size: 1rem; padding: 12px 0; cursor: pointer; font-weight: 600; color: var(--cp-text); }
#rhythmStats { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.metrics-grid dd { color: var(--cp-text); }
#lifetimeStats .metric { padding: 8px 0; }
#lifetimeStats dt { font-size: .85rem; }
#lifetimeStats dd { font-size: 1.1rem; margin: 2px 0; }
.header-more { position: relative; margin: 0; }
.header-more > summary { cursor: pointer; min-height: 44px; padding: 8px 12px; border: 1px solid var(--cp-border); border-radius: 10px; }
.header-more > div { position: absolute; right: 0; top: 100%; width: min(290px, 80vw); display: grid; gap: 8px; padding: 12px; background: var(--cp-surface); border: 1px solid var(--cp-border-strong); border-radius: 10px; z-index: 20; }
.header-more:not([open]) > div { display: none; }
@media (max-width: 800px) {
  .topbar .toolbar { display: flex; flex: 0 1 auto; margin-left: auto; }
  .topbar .heading { flex: 1 1 120px; }
  .study-toolbar { display: grid; grid-template-columns: minmax(76px, 1fr) auto auto auto; }
  .study-toolbar select { width: 100%; }
  .study-toolbar button { font-size: .8rem; padding: 6px; white-space: normal; height: auto; }
  .reports-header nav { gap: 4px; font-size: .85rem; }
  .daily-grid, .daily-weekdays { gap: 4px; }
  .home-intro h2 { font-size: 1.35rem; }
  .reports .metrics-grid, #rhythmStats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; }
}

/* Shared navigation and catalogue surfaces; the study workspace retains its own scroll area. */
.with-shell { padding-left: 220px; }
html:has(body.with-shell) { scrollbar-gutter: stable; }
.site-sidebar { position: fixed; inset: 0 auto 0 0; width: 220px; z-index: 30; }
.sidebar > .brand { padding: 10px 4px 16px; text-decoration: none; color: var(--cp-text); }
.sidebar .brand b { font-size: 1rem; }
.sidebar .brand .small { font-size: .65rem; }
.primary-nav { display: grid; gap: 5px; }
.primary-nav a { display: flex; align-items: center; gap: 12px; min-height: 44px; padding: 8px 12px; border-radius: 9px; color: var(--cp-text-muted); text-decoration: none; font-size: .85rem; line-height: 1.3; overflow-wrap: anywhere; }
.primary-nav a > span { font-size: 1.25rem; line-height: 1; width: 20px; text-align: center; flex: none; }
.primary-nav a:hover, .primary-nav a[aria-current] { background: var(--cp-accent-soft); color: var(--cp-accent); }
.primary-nav a[aria-current] { box-shadow: inset 3px 0 var(--cp-accent); font-weight: 600; }
.shell-bottom { margin-top: auto; padding-top: 14px; border-top: 1px solid var(--cp-border); }
.selected-path { padding: 0 8px; overflow-wrap: anywhere; }
.quick-preferences { display: grid; gap: 6px; padding: 4px 8px 12px; }
.quick-preferences label { font-size: .7rem; margin: 0; color: var(--cp-text-muted); }
.quick-preferences select { display: block; width: 100%; min-width: 0; min-height: 44px; margin-top: 3px; font-size: .8rem; }
.site-menu { display: none; }
.sidebar .side-foot { font-size: .8rem; }
.sidebar .account-nav { grid-template-columns: 1fr 1fr; }
.sidebar .account-nav > * { padding: 6px; font-size: .7rem; }
.sidebar .study-streak { padding: 8px; margin: 8px 0; }
.thread-icon { float: left; margin: 2px 8px 0 0; font-size: 1.2rem; }
.track-azure { color: var(--cp-link); }
.track-ai { color: #bca2ff; }
.track-security { color: var(--cp-success); }
.track-other { color: var(--cp-warning); }
html[data-theme="light"] .track-ai { color: #6840b5; }
.track-icon { display: inline-grid; place-items: center; width: 42px; height: 42px; border-radius: 12px; font-size: 1.5rem; background: var(--cp-accent-soft); }
.report-section, .landing .cards article { border: 1px solid var(--cp-border); border-radius: 16px; background: var(--cp-bg-elevated); }
.reports, .landing, .explore-page { max-width: 1220px; padding: 32px clamp(20px, 3vw, 48px); margin: 0 auto; }
.reports-header h1, .explore-header h1 { font-size: 1.9rem; letter-spacing: -.035em; }
.reports-header nav { gap: 5px; position: relative; }
.reports-header .header-more { position: static; }
.reports-header .header-more > div { max-width: 100%; }
.reports-header nav a { border-color: transparent; }
.eyebrow { font-size: .7rem; text-transform: uppercase; letter-spacing: .13em; color: var(--cp-accent); font-weight: 600; }
.landing .hero { padding: 64px 0 28px; max-width: 780px; }
.landing .hero h1 { font-size: clamp(2.6rem, 5vw, 4.5rem); line-height: 1.07; letter-spacing: -.055em; margin: 20px 0; }
.landing .hero > p:not(.small):not(.eyebrow) { max-width: 640px; color: var(--cp-text-muted); font-size: 1.1rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; margin: 28px 0 16px; }
.hero-actions .button-link, .catalogue-card .button-link { background: var(--cp-accent); color: var(--cp-accent-fg); font-weight: 600; border-color: transparent; }
.secondary-link { display: inline-flex; align-items: center; min-height: 44px; padding: 8px 16px; }
.inventory-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 24px; }
.inventory-stats > div { padding: 20px; border: 1px solid var(--cp-border); border-radius: 14px; background: var(--cp-bg-elevated); }
.inventory-stats strong { display: block; font-size: 2rem; letter-spacing: -.035em; }
.inventory-stats span { color: var(--cp-text-muted); font-size: .8rem; }
.inventory-note { margin: 12px 0 28px; }
.landing .cards article { padding: 24px; }
.path-steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin: 24px 0; }
.path-steps > article { position: relative; min-width: 0; padding: 20px; border: 1px solid var(--cp-border); border-radius: 12px; background: var(--cp-surface); }
.path-steps h3 { font-size: 1.2rem; margin: 10px 0; }
.path-steps .small { min-height: 3.2em; }
.path-steps .button-link { margin-top: 12px; }
.explore-header { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; margin-bottom: 28px; }
.explore-header > a { min-height: 44px; display: inline-flex; align-items: center; }
.catalogue-filters { display: flex; align-items: center; flex-wrap: wrap; gap: 16px; margin: 24px 0; }
.catalogue-filters input[type="search"] { flex: 1 1 200px; min-width: 0; }
.catalogue-filters label { display: flex; align-items: center; gap: 10px; font-size: .85rem; font-weight: 400; margin: 0; }
.catalogue-filters input[type="checkbox"] { width: 20px; height: 20px; }
.catalogue-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.catalogue-group { margin: 8px 0 16px; grid-column: 1 / -1; min-width: 0; }
.catalogue-group.goal-group { grid-column: auto; }
.goal-group .catalogue-grid { grid-template-columns: minmax(0, 1fr); }
.catalogue-group h2 { font-size: 1.3rem; }
.catalogue-grid, .achievement-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.catalogue-card { display: flex; flex-direction: column; align-items: flex-start; padding: 24px; border: 1px solid var(--cp-border); border-radius: 16px; background: var(--cp-bg-elevated); min-width: 0; overflow-wrap: anywhere; }
.catalogue-card h3 { font-size: 1.3rem; margin: 14px 0 6px; }
.catalogue-card > p:not(.small):not(.inventory-count) { color: var(--cp-text-soft); }
.inventory-count { font-weight: 600; margin: 18px 0; }
.catalogue-card > a:last-child { font-size: .8rem; min-height: 44px; padding-top: 12px; margin-top: auto; }
.catalogue-card .button-link { margin-bottom: 12px; }
.goal-choices { display: flex; flex-wrap: wrap; gap: 12px; margin: 24px 0; }
.goal-choices button { min-width: 110px; }
.goal-choices [aria-pressed="true"] { border-color: var(--cp-accent); color: var(--cp-accent); background: var(--cp-accent-soft); }
.milestone { margin: 0; padding: 24px; }
.milestone h2 { margin: 16px 0 8px; }
.milestone.earned { border-color: var(--cp-success); }
.milestone.earned .track-icon { color: var(--cp-success); }
.milestone-count { font-size: 1.5rem; font-weight: 600; }
.recommendations { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-top: 20px; }
.recommendations > h3, .recommendations > p { grid-column: 1 / -1; margin: 0; }
.recommendation { padding: 16px; border-radius: 12px; background: var(--cp-surface); border: 1px solid var(--cp-border); min-width: 0; overflow-wrap: anywhere; }
.recommendation strong { font-size: .85rem; }
.recommendation a { display: inline-flex; align-items: center; min-height: 44px; font-size: .8rem; }
.home-overview .metric { border: 1px solid var(--cp-border); background: var(--cp-surface); padding: 16px; border-radius: 12px; }
.home-overview .metric dd { font-size: 1.6rem; }
.auth-close { float: right; min-width: 44px; margin-left: 8px; }
#guestWelcome { border-left: 3px solid var(--cp-accent); padding: 8px 16px; margin: 24px 0; }
#guestWelcome a { margin-left: 12px; }
@media (min-width: 1100px) {
  .home-overview .next-step { max-width: 100%; }
}
@media (max-width: 1100px) {
  .catalogue-grid, .achievement-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .recommendations { grid-template-columns: 1fr; }
}
@media (max-width: 800px) {
  .with-shell { padding-left: 0; padding-top: 58px; }
  .site-menu { display: block; position: fixed; top: 8px; left: 12px; z-index: 35; min-width: 44px; box-shadow: var(--cp-shadow); }
  .site-sidebar { inset: 58px auto 0 0; width: min(300px, calc(100vw - 48px)); }
  .site-sidebar.site-open { display: flex; }
  .reports, .landing, .explore-page { padding: 20px 16px; }
  .path-steps { grid-template-columns: 1fr; }
  .catalogue-list { grid-template-columns: 1fr; }
  .path-steps .small { min-height: 0; }
  .landing .hero { padding-top: 28px; }
  .inventory-stats { gap: 8px; }
  .inventory-stats > div { padding: 12px; }
  .inventory-stats strong { font-size: 1.6rem; }
  .inventory-stats span { font-size: .7rem; overflow-wrap: anywhere; }
}
@media (max-width: 520px) {
  .catalogue-grid, .achievement-grid { grid-template-columns: 1fr; }
  .reports-header h1, .explore-header h1 { font-size: 1.65rem; }
  .report-section { padding: 18px; }
}