:root {
  --ink: #24262b;
  --ink-soft: #55575f;
  --paper: #f7f3ea;
  --paper-line: #e3ddc9;
  --claret: #7a2e3a;
  --claret-soft: #f1e2e4;
  --gold: #a8791f;
  --gold-soft: #f3ead4;
  --slate: #4a5560;
  --slate-soft: #e7ebee;
  --border: #d8d3c4;
  --bg: #ece8de;
  --white: #fffdf8;
  --radius: 3px;
  --serif: "Source Serif 4", Georgia, serif;
  --sans: "IBM Plex Sans", -apple-system, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.5;
}

a { color: var(--claret); }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  background: var(--ink);
  color: var(--white);
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-mark {
  font-family: var(--serif);
  font-weight: 600;
  font-style: italic;
  color: var(--gold-soft);
  border: 1px solid var(--gold-soft);
  border-radius: 50%;
  width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px;
}
.brand-name { color: var(--white); font-weight: 500; letter-spacing: 0.02em; }
.topnav a { color: var(--paper); text-decoration: none; font-size: 13px; opacity: 0.85; }
.topnav a:hover { opacity: 1; }

.demo-banner {
  background: var(--gold-soft);
  color: #5c3f0a;
  border-bottom: 1px solid var(--gold);
  padding: 8px 28px;
  font-size: 12.5px;
  font-family: var(--mono);
}

main { padding: 28px; max-width: 1500px; margin: 0 auto; }

.page-head { margin-bottom: 20px; }
.page-head h1, .mark-head h1 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 28px;
  margin: 2px 0 0;
}
.page-sub { color: var(--ink-soft); margin: 4px 0 0; }

.section-label {
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 11.5px;
  color: var(--ink-soft);
  margin: 0 0 10px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 6px;
}

.empty-state {
  padding: 40px;
  text-align: center;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-style: italic;
  font-size: 18px;
}

/* Queue */
.queue-section { margin-bottom: 32px; }
.queue-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border: 1px solid var(--border);
}
.queue-table th {
  text-align: left;
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  background: var(--paper);
}
.queue-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--paper-line);
  font-size: 13.5px;
}
.queue-table tr.amber td { background: #fdf3e0; }
.queue-table tr.red td { background: var(--claret-soft); }
.days-cell { font-family: var(--mono); }
.question-cell { max-width: 280px; }

.btn-small, .btn-primary, .btn-tiny, .btn-send {
  font-family: var(--sans);
  font-weight: 500;
  border: none;
  cursor: pointer;
  border-radius: var(--radius);
  text-decoration: none;
  display: inline-block;
}
.btn-small {
  background: var(--ink);
  color: var(--white);
  padding: 6px 14px;
  font-size: 13px;
}
.btn-primary {
  background: var(--claret);
  color: var(--white);
  padding: 10px 20px;
  font-size: 14px;
  margin-top: 10px;
}
.btn-primary:hover { background: #5e2129; }
.btn-tiny {
  background: var(--slate-soft);
  color: var(--ink);
  padding: 4px 10px;
  font-size: 12px;
  margin-top: 6px;
}
.btn-send {
  background: var(--gold);
  color: var(--white);
  padding: 12px 24px;
  font-size: 15px;
  width: 100%;
  margin-top: 14px;
}
.btn-send:disabled { background: var(--border); color: var(--ink-soft); cursor: not-allowed; }

/* Marking view */
.mark-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 18px;
}
.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--claret);
}
.status-pill {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 12px;
  background: var(--slate-soft);
  color: var(--slate);
}
.status-sent { background: #dff0e2; color: #2c6e3a; }
.status-marking { background: var(--gold-soft); color: #5c3f0a; }

.run-config {
  background: var(--white);
  border: 1px solid var(--border);
  padding: 18px 20px;
  margin-bottom: 20px;
}
.config-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 14px;
  margin-bottom: 12px;
}
.config-grid label.wide { grid-column: 1 / -1; }
.run-config label, .panel-feedback label {
  display: flex;
  flex-direction: column;
  font-size: 12.5px;
  color: var(--ink-soft);
  gap: 4px;
}
.run-config input, .run-config select, .run-config textarea,
.panel-feedback textarea, .add-flag input, .add-flag select, .add-flag textarea,
.flag-note-form textarea {
  font-family: var(--sans);
  font-size: 13.5px;
  padding: 7px 9px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--ink);
}

.three-panel {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 18px;
  align-items: start;
}

.panel {
  background: var(--white);
  border: 1px solid var(--border);
  padding: 20px;
  max-height: 82vh;
  overflow-y: auto;
}
.panel-title {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  margin: 0 0 14px;
}

.panel-essay {
  background: var(--paper);
  border-color: var(--paper-line);
}
.essay-question {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 16px;
  padding-bottom: 12px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--paper-line);
}
.essay-body {
  font-family: var(--serif);
  font-size: 15.5px;
  line-height: 1.7;
  color: #2c2a24;
}
.essay-body p { margin: 0 0 14px; }
mark.flag-mark {
  background: var(--gold-soft);
  border-bottom: 2px solid var(--gold);
  padding: 0 1px;
  cursor: pointer;
}

.structural-gate {
  border: 1px solid var(--border);
  padding: 10px 12px;
  margin-bottom: 14px;
  font-size: 13px;
}
.gate-pass { border-left: 4px solid #2c6e3a; }
.gate-fail { border-left: 4px solid var(--claret); background: var(--claret-soft); }

.coverage-diff {
  border: 1px solid var(--border);
  background: var(--white);
  padding: 12px;
  margin-bottom: 14px;
}
.coverage-diff-title {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  margin: 0 0 8px;
}
.coverage-diff-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}
.coverage-diff-table th {
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
  color: var(--ink-soft);
  text-align: center;
  padding: 4px 6px;
  border-bottom: 1px solid var(--border);
}
.coverage-diff-table th:first-child { text-align: left; }
.coverage-diff-table td {
  text-align: center;
  padding: 5px 6px;
  border-bottom: 1px solid var(--paper-line);
}
.cd-para-label { text-align: left !important; font-size: 12px; }
.cd-covered { color: #2c6e3a; font-weight: 600; }
.cd-absent { color: var(--claret); font-weight: 600; }
.cd-na { color: var(--border); }
.cd-note-row td {
  text-align: left !important;
  font-style: italic;
  color: var(--ink-soft);
  font-size: 11.5px;
  padding: 2px 6px 8px;
  border-bottom: 1px solid var(--paper-line);
}

.flag-card {
  border: 1px solid var(--border);
  border-left: 4px solid var(--slate);
  padding: 10px 12px;
  margin-bottom: 12px;
  background: var(--white);
}
.flag-card.severity-strength { border-left-color: var(--gold); }
.flag-card.severity-major { border-left-color: var(--claret); }
.flag-card.severity-gating { border-left-color: var(--claret); background: var(--claret-soft); }
.flag-card.unapproved { opacity: 0.55; }
.flag-card.marker-only { border-left-color: var(--slate); background: var(--slate-soft); }
.flag-marker-note { font-size: 12.5px; color: var(--ink); margin-bottom: 6px; }
.flag-marker-only-tag { font-style: italic; }
/* Approved but comment not yet saved: it will be SILENTLY excluded from the
   sent document. Flag it loudly. Placed after the severity rules so this
   background wins when both apply. */
.flag-card.needs-save { background: var(--gold-soft); border-left-color: var(--gold); }
.flag-unsaved-tag {
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: var(--gold);
  border: 1px solid var(--gold);
  border-radius: var(--radius);
  padding: 3px 6px;
  margin-bottom: 6px;
}
.flag-card-head { display: flex; justify-content: space-between; margin-bottom: 6px; }
.flag-type { font-family: var(--mono); font-size: 11.5px; font-weight: 500; color: var(--ink); }
.flag-severity { font-family: var(--mono); font-size: 10.5px; text-transform: uppercase; color: var(--ink-soft); }
.flag-span { font-style: italic; color: var(--ink-soft); font-size: 13px; margin-bottom: 8px; }
.flag-note-form textarea { width: 100%; margin-bottom: 4px; }
.toggle-btn { width: 100%; text-align: center; }

.add-flag { margin-top: 8px; }
.add-flag summary { cursor: pointer; font-size: 13px; color: var(--claret); }
.add-flag form { display: flex; flex-direction: column; gap: 8px; margin-top: 10px; }

.verdict-skeleton {
  background: var(--slate-soft);
  padding: 12px 14px;
  font-size: 13px;
  margin-bottom: 14px;
}
.verdict-skeleton p { margin: 0 0 6px; }

.panel-feedback textarea { width: 100%; margin-bottom: 14px; }

.band-selector {
  border: none;
  padding: 0;
  margin: 0 0 14px;
}
.band-selector legend {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 8px;
}
.band-option {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  font-size: 13px;
  border: 1px solid var(--border);
  margin-bottom: 4px;
  cursor: pointer;
}
.band-developing { border-left: 4px solid #999; }
.band-below_threshold { border-left: 4px solid var(--gold); }
.band-pass { border-left: 4px solid #2c6e3a; }
.band-high_pass { border-left: 4px solid var(--claret); }

/* Readiness-band pill (student views). Mirrors .status-pill; colours reuse the
   band semantics above so the whole app reads consistently. */
.band-pill {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 12px;
  white-space: nowrap;
}
.band-pill-developing { background: #ececec; color: #4f4f4f; }
.band-pill-below_threshold { background: var(--gold-soft); color: #5c3f0a; }
.band-pill-pass { background: #dff0e2; color: #2c6e3a; }
.band-pill-high_pass { background: var(--claret-soft); color: var(--claret); }

/* Subscription status badge (Stripe). Same pill visual language as
   .status-pill / .band-pill so the app reads as one system. NULL/unknown is
   deliberately neutral — never coloured like an alarm. */
.sub-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 12px;
  white-space: nowrap;
}
.sub-badge-active    { background: #dff0e2; color: #2c6e3a; }
.sub-badge-paused    { background: var(--gold-soft); color: #5c3f0a; }
.sub-badge-past_due  { background: #f7d7d7; color: #8a2020; }
.sub-badge-cancelled { background: #ececec; color: #4f4f4f; }
.sub-badge-none      { background: var(--slate-soft); color: var(--slate); }

/* Non-active warning on the mark view. Informational, NOT a lock — the marker
   is never blocked from marking (a payment blip shouldn't stop feedback). Tone
   scales with severity: red for overdue/cancelled, amber for paused, quiet
   grey for "no record". */
.sub-warning {
  border: 1px solid var(--border);
  border-left-width: 4px;
  border-radius: 4px;
  padding: 12px 16px;
  margin-bottom: 20px;
  font-size: 13.5px;
  color: var(--ink-soft);
}
.sub-warning strong { color: var(--ink); }
.sub-warning-past_due  { background: #fbeaea; border-left-color: #b23434; }
.sub-warning-cancelled { background: #fbeaea; border-left-color: #b23434; }
.sub-warning-paused    { background: var(--gold-soft); border-left-color: var(--gold); }

/* Post-checkout banner on the student dashboard. Success is intentionally
   calm (the subscription is still "being set up" — the webhook may lag). */
.checkout-banner {
  border-radius: 4px;
  padding: 12px 16px;
  margin-bottom: 18px;
  font-size: 14px;
}
.checkout-banner-success   { background: #dff0e2; color: #2c6e3a; border: 1px solid #b7d8bf; }
.checkout-banner-cancelled { background: var(--slate-soft); color: var(--slate); border: 1px solid var(--border); }

/* Entitlement panel — submissions-remaining / trial / lapsed state + paid CTA. */
.entitlement-panel {
  margin-top: 18px;
  padding: 14px 18px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.entitlement-panel .entitlement-line { margin: 0 0 6px; font-size: 14px; color: var(--ink); }
.entitlement-panel .sub-warning { margin: 0; }
.entitlement-panel .btn-primary { margin-top: 8px; }

/* Subscribe / renew call-to-action (shown only when no live subscription). */
.subscribe-cta {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 18px 20px;
  margin-top: 20px;
}
.subscribe-cta .section-label { margin-top: 0; }
.subscribe-options { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }

/* Post-registration plan-choice screen: each option is a full card link. */
.plan-options { display: flex; flex-direction: column; gap: 12px; margin-top: 20px; }
.plan-card {
  display: block;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 16px 18px;
  text-decoration: none;
  color: var(--ink);
  transition: border-color 0.12s, box-shadow 0.12s;
}
.plan-card:hover { border-color: var(--claret); box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06); }
.plan-card-trial { border-style: dashed; }
.plan-label { display: block; font-family: var(--serif); font-size: 17px; font-weight: 600; color: var(--claret); }
.plan-desc { display: block; margin-top: 4px; font-size: 13px; color: var(--ink-soft); }
.plan-later { margin-top: 18px; font-size: 13px; }

/* Readiness-band trend chart (inline SVG). Thin recessive grid/axes; markers
   filled by band with a white surface ring; connecting line kept quiet. */
.trend-chart { width: 100%; max-width: 700px; height: auto; margin-top: 6px; }
.trend-grid { stroke: var(--border); stroke-width: 1; }
.trend-line { fill: none; stroke: var(--slate); stroke-width: 2; }
.trend-axis-label { font-family: var(--sans); font-size: 11px; fill: var(--ink-soft); }
.trend-date-label { font-family: var(--mono); font-size: 10px; fill: var(--ink-soft); }
.band-dot { stroke: var(--white); stroke-width: 2; }
.band-dot-developing { fill: #999; }
.band-dot-below_threshold { fill: var(--gold); }
.band-dot-pass { fill: #2c6e3a; }
.band-dot-high_pass { fill: var(--claret); }

/* Submission filter chips */
.filter-bar { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; margin: 0 0 14px; }
.filter-group { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.filter-label { font-family: var(--mono); font-size: 11px; text-transform: uppercase; color: var(--ink-soft); }
.filter-chip {
  font-size: 12px;
  padding: 4px 11px;
  border: 1px solid var(--border);
  border-radius: 14px;
  color: var(--ink);
  text-decoration: none;
  background: var(--white);
}
.filter-chip:hover { border-color: var(--slate); }
.filter-chip.active { background: var(--slate); color: var(--white); border-color: var(--slate); }

.paper-set {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin: -6px 0 18px;
}
.paper-set-label {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.paper-set select { padding: 4px 6px; font-size: 13px; }

.notice-ok {
  background: #dff0e2;
  color: #2c6e3a;
  padding: 8px 12px;
  border-radius: var(--radius);
  font-size: 13px;
  margin-bottom: 14px;
}

.send-form { margin-top: 6px; }
.hint { font-size: 11.5px; color: var(--ink-soft); margin-top: 4px; }

.auth-wrap {
  display: flex;
  justify-content: center;
  padding-top: 60px;
}
.auth-card {
  background: var(--white);
  border: 1px solid var(--border);
  padding: 32px 36px;
  width: 340px;
}
.auth-title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 22px;
  margin: 0 0 4px;
}
.auth-card form { display: flex; flex-direction: column; gap: 14px; margin-top: 18px; }
.auth-card label { display: flex; flex-direction: column; gap: 4px; font-size: 12.5px; color: var(--ink-soft); }
.auth-card input {
  font-family: var(--sans);
  font-size: 14px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.auth-error {
  background: var(--claret-soft);
  border-left: 3px solid var(--claret);
  padding: 8px 10px;
  font-size: 13px;
  margin-top: 12px;
}
.save-translation-label {
  flex-direction: row !important;
  align-items: center;
  gap: 8px;
  font-size: 12.5px !important;
}
.save-translation-label input[type="checkbox"] { width: auto; }

/* Registration form extras (reuses .auth-card). */
.auth-card select,
.auth-card textarea {
  font-family: var(--sans);
  font-size: 14px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
}
.auth-card textarea { resize: vertical; }
ul.auth-error { list-style: none; margin: 12px 0 0; }
ul.auth-error li { padding: 2px 0; }
.consent-label {
  flex-direction: row !important;
  align-items: flex-start;
  gap: 8px;
}
.consent-label input[type="checkbox"] { width: auto; margin-top: 3px; flex-shrink: 0; }
.auth-alt { font-size: 13px; margin-top: 16px; text-align: center; }

/* Registration eligibility gate. */
.auth-card-wide { width: 460px; }
.gate-question {
  border: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.gate-question legend {
  font-size: 12.5px;
  color: var(--ink-soft);
  padding: 0;
  margin-bottom: 4px;
}
.inline-radio {
  flex-direction: row !important;
  align-items: center;
  gap: 8px;
  font-size: 14px !important;
  color: var(--ink) !important;
}
.inline-radio input[type="radio"] { width: auto; }
.gate-branch {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--paper, #fbfaf6);
}
.gate-branch textarea {
  font-family: var(--sans);
  font-size: 14px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  resize: vertical;
}
.eligibility-text {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--ink-soft);
  background: var(--slate-soft);
  border-left: 3px solid var(--slate);
  padding: 10px 12px;
  margin: 0;
}
.terms-body {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--ink-soft);
  margin: 16px 0;
}
.terms-body strong { color: var(--ink); }

.gate-summary {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-soft);
  background: var(--slate-soft);
  padding: 8px 10px;
  border-radius: var(--radius);
  margin: 12px 0;
}

/* Marker "viewing as" banner — full-width claret bar so the marker can never
   mistake a read-only student view for their own account. */
.viewing-as-banner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  background: var(--claret);
  color: #fff;
  padding: 10px 16px;
  border-radius: var(--radius);
  font-size: 13.5px;
  margin-bottom: 20px;
}
.viewing-as-banner strong { font-weight: 600; }
.viewing-as-banner a { color: #fff; text-decoration: underline; white-space: nowrap; }

/* Practical admin: per-row draft/active toggle switch. */
.pq-toggle {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  cursor: pointer;
}
.pq-toggle-active { background: #dff0e2; color: #2c6e3a; border-color: #b7d8bf; }
.pq-toggle-draft  { background: var(--slate-soft); color: var(--slate); }

/* Multi-question marking: per-question section + split toolbar. */
.split-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 14px 0;
}
.split-toolbar form { display: inline; margin: 0; }
.question-block {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin-bottom: 22px;
  background: var(--paper, #fbfaf6);
}
.qb-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.qb-head .section-label { margin: 0; }
.qb-head form { margin: 0; }
.overall-block { margin-top: 8px; }

/* Async rubric run — processing panel + spinner, and the didn't-finish notice. */
.run-processing {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 20px;
  text-align: center;
}
.run-spinner {
  width: 26px;
  height: 26px;
  margin: 6px auto 10px;
  border: 3px solid var(--slate-soft);
  border-top-color: var(--claret);
  border-radius: 50%;
  animation: run-spin 0.9s linear infinite;
}
@keyframes run-spin { to { transform: rotate(360deg); } }
.run-warning {
  background: var(--gold-soft);
  border-left: 4px solid var(--gold);
  border-radius: 4px;
  padding: 12px 16px;
  margin-bottom: 16px;
  font-size: 13.5px;
  color: var(--ink-soft);
}
.run-warning strong { color: var(--ink); }
.run-warning .hint { display: block; margin: 4px 0; }

/* Roster name/email filter box. */
.student-filter {
  font-family: var(--sans);
  font-size: 14px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 280px;
  max-width: 100%;
}

@media (max-width: 1100px) {
  .three-panel { grid-template-columns: 1fr; }
  .panel { max-height: none; }
}