/* Prep & Cross — restrained, professional styling. System fonts only (no third-party fonts). */

:root {
  --bg: #f7f7f5;
  --surface: #ffffff;
  --text: #1d2125;
  --muted: #5b6470;
  --border: #d9dcdf;
  --accent: #1f4e79;
  --accent-text: #ffffff;
  --ok: #1e6b3a;
  --error: #a3261f;
  --danger: #8f1f19;
  --radius: 6px;
  --disabled-bg: #e3e6ea;
  --disabled-text: #6b7480;
  --selected-bg: #eaf1f8;
  --topbar-h: 3.25rem;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15181b;
    --surface: #1d2125;
    --text: #e6e8ea;
    --muted: #9aa3ad;
    --border: #343a40;
    --accent: #6fa3d6;
    --accent-text: #0d1114;
    --ok: #6cc28c;
    --error: #f08a80;
    --danger: #e0675d;
    --disabled-bg: #2b3036;
    --disabled-text: #8a939d;
    --selected-bg: #1d3247;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
}

a { color: var(--accent); }
code { font-family: var(--mono); font-size: 0.9em; }
h1 { font-size: 1.6rem; margin: 0 0 0.5rem; }
h2 { font-size: 1.15rem; margin: 0 0 0.75rem; }
h3 { font-size: 1rem; margin: 1rem 0 0.5rem; }
h1:focus { outline: none; }

.shell { min-height: 100vh; display: flex; flex-direction: column; }

.topbar {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 600; text-decoration: none; color: var(--text); }

.content { flex: 1; width: 100%; max-width: 1240px; margin: 0 auto; padding: 1.25rem 1.25rem 2rem; }

.footer { padding: 1rem; text-align: center; font-size: 0.85rem; color: var(--muted); border-top: 1px solid var(--border); }

.lede { font-size: 1.1rem; color: var(--muted); margin-top: 0; }
.muted { color: var(--muted); }
.ok { color: var(--ok); }
.error { color: var(--error); }

.badge {
  display: inline-block; padding: 0.1rem 0.5rem;
  border: 1px solid var(--border); border-radius: 999px;
  font-size: 0.8rem; color: var(--muted);
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1rem;
}
.card.narrow { max-width: 520px; margin: 2rem auto; }

/* Sign-in is deliberately calm and self-contained. The identity provider owns the fields in its separate window; this
   card tells people what is about to happen without looking like a second, competing login form. */
.content:has(> .signin-card) { display: grid; place-items: center; }
.signin-card {
  width: min(100%, 560px); max-width: 560px; margin: 1rem auto;
  padding: clamp(1.5rem, 4vw, 2.25rem);
  border-radius: 14px;
  box-shadow: 0 18px 55px rgba(20, 37, 54, 0.10);
}
.signin-brand {
  display: grid; place-items: center; width: 3rem; height: 3rem; margin-bottom: 1.1rem;
  border-radius: 12px; background: var(--accent); color: var(--accent-text);
  font-size: 0.95rem; font-weight: 750; letter-spacing: -0.02em;
}
.signin-kicker {
  margin: 0 0 0.2rem; color: var(--accent); font-size: 0.78rem; font-weight: 750;
  letter-spacing: 0.1em; text-transform: uppercase;
}
.signin-card h1 { font-size: clamp(1.75rem, 5vw, 2.15rem); letter-spacing: -0.025em; margin-bottom: 0.45rem; }
.signin-lede { margin: 0 0 1.4rem; color: var(--muted); font-size: 1.04rem; }
.signin-notice {
  margin: 0 0 1.25rem; padding: 1rem 1.1rem;
  border: 1px solid var(--border); border-radius: 10px; background: var(--bg);
}
.signin-notice h2 { margin-bottom: 0.45rem; font-size: 0.92rem; }
.signin-notice ul { margin: 0; padding-left: 1.15rem; color: var(--muted); font-size: 0.9rem; }
.signin-notice li + li { margin-top: 0.35rem; }
.signin-submit { width: 100%; justify-content: center; margin: 0; min-height: 2.9rem; }
.signin-provider-note, .signin-public-note { color: var(--muted); font-size: 0.82rem; text-align: center; }
.signin-provider-note { margin: 0.65rem 0 0; }
.signin-public-note { margin: 1.35rem 0 0; padding-top: 1rem; border-top: 1px solid var(--border); }
.signin-backdrop {
  position: fixed; inset: 0; z-index: 100;
  display: grid; place-items: center; padding: 1rem;
  background: rgba(18, 27, 36, 0.32); backdrop-filter: blur(2px);
}
.signin-progress {
  width: min(100%, 390px); padding: 1.6rem;
  background: var(--surface); border: 1px solid var(--border); border-radius: 14px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.24);
}
.signin-progress .signin-brand { width: 2.6rem; height: 2.6rem; margin-bottom: 0.9rem; }
.signin-progress h2 { margin: 0 0 0.45rem; font-size: 1.4rem; }
.signin-progress > p:not(.signin-kicker) { margin: 0 0 1rem; }
.signin-progress button { margin-top: 0.25rem; }
@media (max-width: 520px) {
  .content:has(> .signin-card) { align-items: start; padding-inline: 0.75rem; }
  .signin-card { margin-top: 0.5rem; padding: 1.35rem; border-radius: 10px; box-shadow: none; }
}

.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); margin-bottom: 1rem; }

ul.plain { list-style: none; padding: 0; margin: 0; }
ul.plain li { padding: 0.3rem 0; }
ul.notice { padding-left: 1.2rem; }
ul.notice li { margin-bottom: 0.35rem; }

label { display: block; font-weight: 600; margin: 0.75rem 0 0.25rem; }
input[type="text"], input[type="password"], textarea {
  width: 100%; padding: 0.55rem 0.65rem;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg); color: var(--text); font: inherit;
}

button, .button-like {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.5rem 0.9rem; margin: 0;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface); color: var(--text);
  font: inherit; font-weight: 500; cursor: pointer;
}
button:disabled { opacity: 0.55; cursor: not-allowed; }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); font-weight: 600; padding: 0.6rem 1.2rem; margin-top: 0.75rem; }
button.primary:hover:not(:disabled) { filter: brightness(1.1); }
/* A real disabled state: neutral, not a faded primary (Joseph, 2026-10-26). */
button.primary:disabled { opacity: 1; background: var(--disabled-bg); border-color: var(--disabled-bg); color: var(--disabled-text); }
button.danger { border-color: var(--danger); color: var(--danger); }
.button-like { font-weight: 500; }
.button-like input[type="file"] { display: none; }
button:focus-visible, .button-like:focus-within, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px;
}

.actions { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0.5rem 0; }

.steps { list-style: none; padding: 0; margin: 0.75rem 0 0; }
.steps li { padding: 0.2rem 0; }
.steps .mark { display: inline-block; width: 1.2rem; font-weight: 700; }

.table { width: 100%; border-collapse: collapse; font-size: 0.92rem; margin-top: 0.5rem; }
.table th, .table td { text-align: left; padding: 0.4rem 0.5rem; border-bottom: 1px solid var(--border); vertical-align: top; }
@media (max-width: 640px) {
  .table, .table tbody, .table tr, .table td { display: block; width: 100%; }
  .table thead { display: none; }
  .table tr { border-bottom: 1px solid var(--border); padding: 0.4rem 0; }
  .table td { border: none; padding: 0.1rem 0; }
}

dl.kv { display: grid; grid-template-columns: max-content 1fr; gap: 0.25rem 1rem; margin: 0.75rem 0 0; }
dl.kv dt { color: var(--muted); }
dl.kv dd { margin: 0; }

.rec-dot { width: 0.6rem; height: 0.6rem; border-radius: 50%; background: var(--danger); display: inline-block; }

.boot { text-align: center; margin-top: 30vh; color: var(--muted); font-family: var(--font); }

#blazor-error-ui {
  display: none;
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 1000;
  padding: 0.75rem 1.25rem;
  background: #fff4ce; color: #3b2f00;
  box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
}
#blazor-error-ui .dismiss { cursor: pointer; position: absolute; right: 0.75rem; top: 0.5rem; }

/* ---------------------------------------------------------------- Milestone 3: navigation, Recognize, progress
   One restrained visual pass (spec §10: clean, professional, restrained). Deeper design work follows Milestone 4. */

.topbar { min-height: var(--topbar-h); }
.topnav { display: flex; flex-wrap: wrap; gap: 0.25rem 1rem; flex: 1; }
.topnav a { color: var(--muted); text-decoration: none; padding: 0.15rem 0; border-bottom: 2px solid transparent; }
.topnav a.active { color: var(--text); border-bottom-color: var(--accent); }
.topnav a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.small { font-size: 0.88rem; }
.link-button { border: none; background: none; padding: 0.1rem 0.2rem; color: var(--accent); text-decoration: underline; font-weight: 400; }

/* Exercise layout: question column about 2/3, witness card about 1/3. On wide screens both columns fill the space left
   under the page heading (no guessed offsets) and scroll internally; the action bar stays at the bottom of the
   question column. On narrow screens the question comes first and the action bar sticks to the bottom of the viewport. */
.exercise { display: grid; gap: 1.25rem; grid-template-columns: minmax(0, 1fr); }
.exercise-main {
  display: flex; flex-direction: column;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
}
.exercise-scroll { padding: 1.25rem 1.5rem 1rem; }
.action-bar {
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  padding: 0.75rem 1.5rem; border-top: 1px solid var(--border);
  background: var(--surface); border-radius: 0 0 var(--radius) var(--radius);
  position: sticky; bottom: 0; z-index: 2; /* phones: sticks to the bottom of the viewport */
}
.action-bar button.primary { margin: 0; min-width: 9rem; justify-content: center; }
@media (min-width: 900px) {
  .exercise { grid-template-columns: minmax(0, 2fr) minmax(280px, 1fr); align-items: stretch; }
}
@media (min-width: 900px) and (min-height: 540px) {
  /* The page becomes exactly one viewport tall while an exercise is shown; the exercise takes what is left. */
  .shell:has(.exercise) { height: 100vh; height: 100dvh; min-height: 0; }
  .content:has(> .exercise) { display: flex; flex-direction: column; min-height: 0; padding-bottom: 1rem; }
  .content:has(> .exercise) > .exercise { flex: 1 1 auto; min-height: 0; grid-template-rows: minmax(0, 1fr); }
  .exercise-main, .exercise-side { min-height: 0; overflow: hidden; }
  .exercise-scroll { flex: 1 1 auto; min-height: 0; overflow-y: auto; }
  .action-bar { position: static; }
}

.question-meta { display: flex; flex-wrap: wrap; gap: 0.25rem 1rem; align-items: baseline; margin-bottom: 0.5rem; }
.question-text { font-size: 1.25rem; font-weight: 600; line-height: 1.45; margin: 0 0 0.75rem; }
.question-text:focus { outline: none; }
.stage-note { color: var(--muted); margin: 0 0 0.5rem; }
.audio-button { margin: 0 0 0.25rem; }
.audio-button[data-audio-state="playing"] { border-color: var(--accent); color: var(--accent); }

/* Answer options: the whole card is clickable, with a visible selected state. */
fieldset.choices { border: none; padding: 0; margin: 1.25rem 0 0; }
fieldset.choices legend { font-weight: 600; margin-bottom: 0.6rem; padding: 0; }
label.choice {
  display: flex; gap: 0.75rem; align-items: flex-start;
  margin: 0 0 0.5rem; padding: 0.7rem 0.85rem;
  border: 1px solid var(--border); border-radius: var(--radius);
  font-weight: 400; cursor: pointer; background: var(--surface);
}
label.choice:hover { border-color: var(--accent); }
label.choice:has(input:checked) { border-color: var(--accent); background: var(--selected-bg); box-shadow: inset 4px 0 0 var(--accent); }
label.choice:has(input:focus-visible) { outline: 2px solid var(--accent); outline-offset: 2px; }
label.choice input { margin: 0.25rem 0 0; accent-color: var(--accent); flex: none; }
.choice-text { display: block; }
.choice-label { display: block; font-weight: 600; }
.choice-desc { display: block; font-size: 0.88rem; color: var(--muted); margin-top: 0.1rem; }
fieldset:disabled label.choice { cursor: default; }
fieldset:disabled label.choice:hover { border-color: var(--border); }
label.choice.accepted { border-color: var(--ok); }
label.choice.chosen:not(.accepted) { border-color: var(--error); }

.feedback-anchor:focus { outline: none; }
.feedback { margin-top: 1.25rem; border-top: 1px solid var(--border); padding-top: 1rem; }
.feedback-block { margin: 0 0 0.9rem; }
.feedback-block h3 { margin: 0 0 0.2rem; font-size: 0.95rem; }
.feedback-block p { margin: 0; }
.feedback-block ul { margin: 0.2rem 0 0; padding-left: 1.2rem; }
.verdict { font-weight: 700; font-size: 1.05rem; margin: 0 0 0.75rem; }
.verdict.good, .recent-marks .good, .verdict-mark.good { color: var(--ok); }
.verdict.not-quite, .recent-marks .not-quite, .verdict-mark.not-quite { color: var(--error); }

/* Witness card: compact and scannable, scrolling internally. */
.witness-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 0.9rem 1rem; font-size: 0.88rem; line-height: 1.4; }
@media (min-width: 900px) { .witness-card { height: 100%; overflow-y: auto; } }
.witness-card-head { display: flex; justify-content: space-between; align-items: baseline; position: sticky; top: -0.9rem; background: var(--surface); padding: 0.1rem 0 0.35rem; }
.witness-card-head h2 { margin: 0; font-size: 1rem; }
.witness-card h3 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); margin: 0.85rem 0 0.3rem; }
.witness-card p { margin: 0 0 0.4rem; }
.witness-card .card-title { margin-bottom: 0.2rem; }
.witness-card .facts { list-style: none; padding: 0; margin: 0; }
.witness-card .facts li { padding: 0.3rem 0.4rem; border-bottom: 1px solid var(--border); }
.witness-card .facts li:last-child { border-bottom: none; }
.witness-card .facts li.highlight { background: var(--selected-bg); box-shadow: inset 3px 0 0 var(--accent); }
.notebook { font-family: var(--mono); font-size: 0.8rem; white-space: pre-wrap; background: var(--bg); padding: 0.5rem; border-radius: var(--radius); margin: 0; }

.summary-list { padding-left: 1.3rem; }
.summary-list li { margin-bottom: 0.9rem; }
.summary-question { margin: 0 0 0.2rem; }

.progress-row { border-top: 1px solid var(--border); padding: 0.6rem 0; }
.progress-row summary { cursor: pointer; display: flex; flex-wrap: wrap; gap: 0.5rem 1rem; align-items: baseline; }
.progress-group-label { font-weight: 600; }
.recent-marks { letter-spacing: 0.15rem; font-weight: 700; }

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

/* ------------------------------------------------------------------ Respond (Milestone 4) */
.answer-area { margin-top: 1rem; display: flex; flex-direction: column; gap: 0.35rem; }
.answer-area textarea { width: 100%; font: inherit; padding: 0.6rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); color: var(--text); resize: vertical; }
.actions-left, .actions-right { display: flex; gap: 0.75rem; align-items: center; }
.action-bar .secondary { margin: 0; }
button.secondary { background: var(--surface); border-color: var(--accent); color: var(--accent); font-weight: 600; padding: 0.6rem 1rem; }
.recording-indicator { margin-top: 1rem; font-weight: 600; display: flex; align-items: center; gap: 0.5rem; }
.recording-indicator .dot { width: 0.75rem; height: 0.75rem; border-radius: 50%; background: var(--error); animation: pac-pulse 1.2s ease-in-out infinite; }
@keyframes pac-pulse { 50% { opacity: 0.35; } }
@media (prefers-reduced-motion: reduce) { .recording-indicator .dot { animation: none; } }
.spinner { display: inline-block; width: 0.9rem; height: 0.9rem; border: 2px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: pac-spin 0.9s linear infinite; vertical-align: -0.1rem; margin-right: 0.35rem; }
@keyframes pac-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .spinner { animation: none; } }
.notice { border-left: 3px solid var(--accent); padding: 0.5rem 0.9rem; background: var(--selected-bg); border-radius: var(--radius); margin: 0.75rem 0; }
.draft-label { font-size: 0.85rem; color: var(--muted); border: 1px dashed var(--border); border-radius: var(--radius); padding: 0.35rem 0.6rem; }
.respond-feedback h3 { margin: 1rem 0 0.3rem; font-size: 1rem; }
.competency-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0.6rem; }
.competency-row { border: 1px solid var(--border); border-radius: var(--radius); padding: 0.5rem 0.75rem; background: var(--surface); }
.competency-row p { margin: 0.2rem 0; }
.competency-head { display: flex; flex-wrap: wrap; gap: 0.6rem; align-items: baseline; }
.score-words { font-size: 0.9rem; }
.score-3, .score-2 { color: var(--ok); }
.score-0, .score-1 { color: var(--error); }
.evidence { margin: 0.25rem 0 0; padding-left: 1.1rem; color: var(--muted); font-style: italic; }
.answer-quote { margin: 0.25rem 0; padding: 0.4rem 0.8rem; border-left: 3px solid var(--border); white-space: pre-wrap; }
.score-chip { display: inline-block; min-width: 1.4rem; text-align: center; border: 1px solid currentColor; border-radius: 0.7rem; margin-right: 0.2rem; font-size: 0.8rem; }
.checkbox-row { display: flex; gap: 0.5rem; align-items: center; }

/* ------------------------------------------------------------------ Expert Communication (Milestones 6, 8) and Live Cross (9) */
.capture-actions { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-top: 0.75rem; flex-wrap: wrap; }
.capture-actions button.primary { margin: 0; min-width: 9rem; }
.accuracy-first { border-left: 3px solid var(--error); padding: 0.5rem 0.9rem; background: var(--surface); border-radius: var(--radius); margin: 0.75rem 0; }
.jargon-list { padding-left: 1.1rem; margin: 0.25rem 0; }
.jargon-list li { margin-bottom: 0.3rem; }
.topic-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.6rem; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.topic-list li { border: 1px solid var(--border); border-radius: var(--radius); padding: 0.6rem 0.8rem; background: var(--surface); }
.topic-list .topic-links { display: flex; gap: 1rem; margin-top: 0.3rem; font-size: 0.9rem; }
.reference h2 { margin-top: 1.25rem; }
.reference dl { margin: 0; }
.reference dt { font-weight: 600; margin-top: 0.5rem; }
.reference dd { margin: 0.1rem 0 0; }
.single-exercise { max-width: 820px; }
.transcript { list-style: none; padding: 0; margin: 0.5rem 0; display: flex; flex-direction: column; gap: 0.5rem; }
.transcript li { border: 1px solid var(--border); border-radius: var(--radius); padding: 0.45rem 0.7rem; background: var(--surface); }
.transcript li.from-trainee { border-left: 3px solid var(--accent); }
.transcript .speaker { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); display: block; }

/* ---- Accounts and administration (administrative milestone 1) ---- */
.account-menu { display: flex; flex-wrap: wrap; align-items: center; gap: 0.25rem 0.75rem; font-size: 0.92rem; }
.account-menu a { color: var(--muted); text-decoration: none; }
.account-menu a.active { color: var(--text); }
.account-menu select { font: inherit; padding: 0.15rem 0.3rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); color: var(--text); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.session-banner { display: flex; flex-wrap: wrap; gap: 0.5rem 1rem; align-items: center; padding: 0.6rem 1rem; background: var(--selected-bg); border-bottom: 1px solid var(--border); }
.session-banner span { flex: 1 1 20rem; }
.session-banner button.primary { margin: 0; }
.error-banner { color: var(--error); }
.notice-box { border: 1px solid var(--border); border-left: 3px solid var(--accent); border-radius: var(--radius); padding: 0.6rem 0.8rem; background: var(--surface); margin: 0.5rem 0 1rem; }
.status-pill { display: inline-block; padding: 0 0.45rem; border-radius: 999px; border: 1px solid var(--border); font-size: 0.82rem; }
.status-pill.active, .status-pill.pending, .status-pill.accepted { color: var(--ok); border-color: currentColor; }
.status-pill.deactivated, .status-pill.revoked, .status-pill.suspended, .status-pill.expired, .status-pill.denied, .status-pill.failed { color: var(--error); border-color: currentColor; }
.form-row { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: end; margin: 0.5rem 0; }
.form-row label { display: flex; flex-direction: column; gap: 0.15rem; font-size: 0.9rem; }
.form-row input, .form-row select, .table select { font: inherit; padding: 0.3rem 0.4rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); color: var(--text); }
.invite-link { font-family: var(--mono); font-size: 0.8rem; word-break: break-all; background: var(--bg); padding: 0.4rem; border-radius: var(--radius); }
.table-scroll { overflow-x: auto; }
.mail { white-space: pre-wrap; font-family: var(--mono); font-size: 0.85rem; background: var(--bg); padding: 0.5rem; border-radius: var(--radius); }