/* Signed-in app layer. Shared tokens and components live in /assets/app.css. */

.app-main {
  width: min(1160px, 100%);
  margin: 0 auto;
  padding: 40px 20px 116px;
}

.app-main.narrow { max-width: 760px; }

/* Keep the dashboard footer clear of the fixed phone tab bar at scroll end. */
.app-mode > .site-foot { padding-bottom: 64px; }

.app-title {
  max-width: 18ch;
  margin: 0 0 12px;
  font-size: clamp(2.25rem, 7vw, 4rem);
  line-height: 1.02;
  letter-spacing: -.06em;
}

.row { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.wrap { flex-wrap: wrap; }
.small { font-size: .84rem; }

.loading-state,
.error-state { padding: 48px 0; }
.error-state .btn { margin-top: 18px; }
.empty-card,
.empty-inline { padding: 24px; }
.empty-inline { margin: 0; }

.app-grid { display: grid; gap: 16px; }
.app-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.app-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.dashboard-hero { display: grid; gap: 24px; padding-bottom: 32px; border-bottom: 1px solid var(--line); }
.dashboard-hero .lead { margin-bottom: 0; }
.dashboard-summary { display: grid; gap: 16px; background: var(--ink-panel); color: var(--paper); border: 0; }
.dashboard-summary h2,
.dashboard-summary strong { color: var(--paper); }
.dashboard-summary .muted { color: color-mix(in srgb, var(--paper) 72%, transparent); }
.dashboard-summary .eyebrow { color: var(--accent-soft); }
.dashboard-summary .badge { justify-self: start; }
.dashboard-summary-top { display: flex; justify-content: space-between; gap: 16px; align-items: start; }
.dashboard-summary-top .muted { color: color-mix(in srgb, var(--paper) 68%, transparent); }
.dashboard-target { display: flex; align-items: end; justify-content: space-between; gap: 16px; padding-top: 16px; border-top: 1px solid color-mix(in srgb, var(--paper) 20%, transparent); }
.dashboard-target strong { display: block; margin-top: 4px; font-size: 1.45rem; letter-spacing: -.04em; }
.dashboard-target .muted { font-size: .8rem; }

.section { margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--line); }
.section-head { align-items: end; margin-bottom: 20px; }
.section-head .eyebrow { margin-bottom: 7px; }
.section-head h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); }

.mock-card { display: grid; gap: 16px; min-height: 100%; }
.mock-card.locked { opacity: 1; }
.mock-card-head { display: flex; align-items: start; justify-content: space-between; gap: 12px; }
.mock-card-head h3 { max-width: 16ch; }
.mock-card-controls { display: flex; align-items: start; gap: 8px; }
.mock-toggle { display: none; min-width: 44px; min-height: 44px; padding: 0; border: 1px solid var(--line); border-radius: 50%; background: var(--card); color: var(--ink); cursor: pointer; font-size: 1.2rem; line-height: 1; }
.skill-links { display: grid; gap: 8px; margin-top: auto; }
.skill-link { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 54px; padding: 10px 12px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--paper); color: var(--ink); text-decoration: none; }
.skill-link:hover { border-color: var(--accent); }
.skill-link span:first-child,
.card.tap > span:first-child,
.submission-row span:first-child,
.list-row span:first-child { display: grid; min-width: 0; gap: 3px; }
.skill-link small,
.submission-row small,
.list-row small { color: var(--muted); font-size: .78rem; }
.progress-card { display: grid; gap: 12px; }
.progress-card .progress { margin: 8px 0 0; }
.progress-card .progress span { width: 0; }
.timer { min-width: 5ch; color: var(--accent-deep); font-variant-numeric: tabular-nums; font-weight: 800; text-align: right; }
.timer-warning { color: var(--warn) !important; }
.submission-row { align-items: center; }

/* Exam runner. */
.exam-shell { max-width: 1160px; padding-top: 0; }
.exam-top { position: sticky; top: 0; z-index: 10; padding: 16px 0 14px; background: color-mix(in srgb, var(--paper) 94%, transparent); border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); }
.exam-top .muted { margin: 8px 0 0; }
.exam-top .timer-chip { margin-inline-start: auto; }
.nav-dots { display: flex; flex-wrap: wrap; gap: 7px; margin: 14px 0 0; }
.nav-dots button { min-width: 44px; min-height: 44px; border: 1px solid var(--line); border-radius: 50%; background: var(--card); color: var(--ink); cursor: pointer; }
.nav-dots button.current { border-color: var(--accent); background: var(--accent); color: var(--accent-ink); }
.nav-dots button:disabled { cursor: not-allowed; opacity: .45; }
.exam-layout { display: grid; gap: 16px; padding-top: 20px; }
.exam-layout.exam-listening { grid-template-columns: minmax(0, 760px); justify-content: center; }
.passage-panel { align-self: start; padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); box-shadow: var(--shadow); }
.passage { white-space: pre-wrap; line-height: 1.72; }
.diagram { overflow: auto; margin-top: 18px; padding: 12px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--paper); }
.diagram table { width: 100%; border-collapse: collapse; }
.diagram td,
.diagram th { padding: 8px; border: 1px solid var(--line); text-align: left; }
.question-card { align-self: start; }
.question-title { margin: 10px 0 18px; font-size: clamp(1.45rem, 4vw, 2.05rem); }
.question-locked .question-title { color: var(--muted); }
.options,
.option-grid { display: grid; gap: 10px; }
.option { display: flex; align-items: center; gap: 10px; min-height: 54px; padding: 12px 13px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--card); cursor: pointer; }
.option:has(input:checked),
.option-card.selected { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.option input { width: 20px; height: 20px; accent-color: var(--accent); }
.runner-actions { display: flex; gap: 10px; margin-top: 22px; }
.runner-actions > * { flex: 1; }
.audio-box { display: grid; gap: 16px; margin-top: 20px; padding: 18px; border-radius: var(--radius); background: var(--ink-panel); color: var(--paper); }
.audio-box .muted-on-dark { color: color-mix(in srgb, var(--paper) 70%, transparent); }
.audio-box .btn-ghost { border-color: color-mix(in srgb, var(--paper) 30%, transparent); color: var(--paper); }
.audio-box audio { display: none; }
.audio-box .notice { margin-top: 0; color: var(--ink); }
.audio-scene { margin-bottom: 0; padding-bottom: 12px; border-bottom: 1px solid color-mix(in srgb, var(--paper) 24%, transparent); }
.audio-scene p { margin: 4px 0 0; color: color-mix(in srgb, var(--paper) 80%, transparent); }
.notice[hidden],
[hidden] { display: none !important; }

/* MCQ review. */
.review-shell .app-title { max-width: none; }
.score-summary { display: grid; gap: 10px; margin: 24px 0; background: var(--ink-panel); color: var(--paper); }
.score-summary strong { color: var(--paper); font-size: 3.3rem; letter-spacing: -.08em; }
.score-summary span { color: color-mix(in srgb, var(--paper) 72%, transparent); }
.review-list { display: grid; gap: 14px; margin-bottom: 24px; }
.review-card h2 { margin-bottom: 16px; font-size: 1.35rem; }
.review-answer-grid { display: grid; gap: 12px; margin-bottom: 14px; }
.review-answer-grid p { display: grid; gap: 3px; margin: 0; }
.review-evidence { padding: 14px; border-inline-start: 3px solid var(--warn); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; background: color-mix(in srgb, var(--warn) 12%, var(--card)); }
.review-evidence .passage { margin: 8px 0 0; }
.review-evidence mark { background: color-mix(in srgb, var(--warn) 40%, var(--card)); color: var(--ink); }
.transcript { margin-top: 8px; }
.transcript p { margin: 0 0 8px; }
.review-context { margin: 14px 0; padding: 12px; border: 1px solid var(--line); border-radius: var(--radius-sm); }
.review-context p { margin: 5px 0 0; }

/* Writing and speaking task screens. */
.task-header { padding-bottom: 28px; border-bottom: 1px solid var(--line); }
.task-header .lead { margin-bottom: 0; }
.task-toolbar { align-items: center; margin-bottom: 16px; }
.task-toolbar .timer-chip { margin-inline-start: auto; }
.task-toolbar .timer-chip strong { color: var(--accent-deep); }
.writing-card,
.speaking-card { margin-top: 20px; }
.writing-card textarea { min-height: 280px; }
.task-bullets { padding-inline-start: 22px; color: var(--muted); }
.word-count { color: var(--muted); font-size: .85rem; }
.word-count.good { color: var(--ok); }
.word-count.warn { color: var(--warn); }
.scene { display: block; width: 100%; max-height: 300px; margin-bottom: 18px; border: 1px solid var(--line); border-radius: var(--radius-sm); object-fit: cover; }
.option-card { min-height: 100px; padding: 14px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--card); color: var(--ink); text-align: left; cursor: pointer; }
.option-card ul { margin: 8px 0 0; padding-inline-start: 18px; color: var(--muted); }
.countdown { display: grid; gap: 8px; padding: 24px 12px; text-align: center; }
.countdown strong { display: block; font-size: 3.5rem; letter-spacing: -.08em; font-variant-numeric: tabular-nums; }
.playback audio { width: 100%; margin-top: 14px; }

/* Ready reports returned by the existing submissions endpoint. */
.report-view { display: grid; gap: 20px; margin-top: 16px; padding: 0; overflow: hidden; }
.report-heading { display: grid; gap: 8px; padding: 22px; background: var(--ink-panel); color: var(--paper); }
.report-heading h3,
.report-heading .eyebrow { color: var(--paper); }
.report-heading .eyebrow { color: var(--accent-soft); }
.report-band { color: var(--paper); font-size: 3rem; letter-spacing: -.08em; line-height: 1; }
.report-band-note { margin: 0; color: var(--paper); }
.report-heading .disclaimer { color: color-mix(in srgb, var(--paper) 70%, transparent); }
.report-body { display: grid; gap: 24px; padding: 0 22px 22px; }
.criteria-list { display: grid; gap: 14px; }
.criteria-item { display: grid; gap: 7px; }
.criteria-item .muted,
.confirmed-note,
.correction-item,
.report-section li { font-size: .875rem; line-height: 1.45; }
.criteria-head { display: flex; justify-content: space-between; gap: 12px; }
.criteria-head strong:last-child { color: var(--accent-deep); font-variant-numeric: tabular-nums; }
.criteria-head strong:last-child.muted { color: var(--muted); }
.criteria-item .meter { margin: 0; }
.criteria-item .meter > span { width: 0; }
.correction-list { display: grid; gap: 10px; margin: 0; padding: 0; list-style: none; }
.correction-item { padding: 14px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--paper); }
.correction-item p { margin: 4px 0 0; }
.correction-label { color: var(--accent-deep); font-size: .72rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.correction-quote { color: var(--bad); }
.correction-fix { color: var(--ok); }
.confirmed-note { margin: 0; }
.report-section h4 { margin-bottom: 10px; font-size: 1.05rem; }
.report-section ul,
.report-section ol { margin-bottom: 0; padding-inline-start: 20px; }

.sheet-overlay { position: fixed; inset: 0; z-index: 30; display: flex; align-items: end; background: color-mix(in srgb, var(--ink) 45%, transparent); }
.sheet-overlay .sheet { width: min(680px, 100%); max-height: 90vh; margin: 0 auto; overflow: auto; }

.reading-toggle { display: none; }
.mobile-passage-control { display: none; }
.passage-panel { position: relative; }
.submission-list { display: grid; gap: 12px; }
.submission-card { padding: 0; overflow: hidden; }
.submission-card .submission-row { padding: 16px 18px; border-bottom: 1px solid var(--line); }
.submission-card .report-view { margin-top: 0; }
.submission-controls { display: flex; flex-wrap: wrap; gap: 10px; }
.task-page-layout { display: grid; gap: 16px; }
.task-editor { min-width: 0; }
.submission-panel { min-width: 0; }
.submission-panel.section { margin-top: 20px; padding-top: 24px; }
.dashboard-activity { display: grid; gap: 0; }
.mistake-filters { margin: 24px 0 16px; overflow-x: auto; }
.mistake-filter { min-height: 42px; padding: 0 14px; border: 0; border-radius: 7px; background: transparent; color: var(--muted); cursor: pointer; font-weight: 700; white-space: nowrap; }
.mistake-filter.active { background: var(--accent-soft); color: var(--accent-deep); }
.mistake-grid { grid-template-columns: 1fr; }
.show-more-mistakes { max-width: 220px; margin: 20px auto 0; }
.card.tap.mobile-continue { display: none; }
.mock-library-toggle { display: none; }

@media (min-width: 1024px) {
  .task-page-layout { grid-template-columns: minmax(320px, 360px) minmax(0, 1fr); gap: 32px; align-items: start; }
  .task-page-layout .submission-panel.section { margin-top: 20px; }
  .dashboard-activity { grid-template-columns: minmax(0, 1.25fr) minmax(0, .85fr) minmax(0, .85fr); gap: 20px; align-items: start; }
  .dashboard-activity > .section { margin-top: 48px; padding-top: 32px; }
}

@media (min-width: 768px) {
  .mistake-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mock-library { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
}

@media (min-width: 1160px) {
  .mistake-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .mock-library { grid-template-columns: repeat(5, minmax(0, 1fr)); }
}

@media (min-width: 640px) {
  .app-main { padding: 48px 28px 72px; }
  .dashboard-hero { grid-template-columns: minmax(0, 1fr) minmax(320px, .55fr); align-items: end; gap: 48px; }
  .review-answer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
  .exam-layout { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .exam-layout .passage-panel { position: sticky; top: 160px; max-height: calc(100vh - 180px); overflow: auto; }
  .exam-layout.exam-listening { grid-template-columns: minmax(0, 760px); }
}

@media (min-width: 768px) and (max-width: 899px) {
  .exam-layout:not(.exam-listening) { grid-template-columns: minmax(0, .42fr) minmax(0, .58fr); gap: 12px; }
  .exam-layout:not(.exam-listening) .passage-panel { box-shadow: inset 0 -18px 18px -20px var(--accent); }
}

@media (max-width: 639px) {
  .app-grid.two,
  .app-grid.three { grid-template-columns: 1fr; }
  .dashboard-hero { padding-top: 12px; }
  .section-head { display: grid; align-items: start; gap: 10px; }
  .task-toolbar .btn { flex: 1; }
  .report-body { padding-inline: 16px; }
  .app-main { padding-bottom: 128px; }
  .mock-library { grid-template-columns: 1fr; }
  .card.tap.mobile-continue { display: flex; margin-bottom: 12px; }
  .mock-library-toggle { display: inline-flex; width: 100%; margin-bottom: 12px; }
  .mock-library .mock-card-collapsed .skill-links { display: none; }
  .mock-library .mock-card-collapsed { min-height: 0; gap: 0; }
  .mock-library .mock-card-collapsed .mock-card-head { align-items: center; }
  .mock-toggle { display: inline-grid; place-items: center; }
  .exam-top > .row:first-child { flex-wrap: nowrap; }
  .exam-top > .row:first-child > div { min-width: 0; }
  .exam-top > .row:first-child strong { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .nav-dots { flex-wrap: nowrap; overflow-x: auto; padding: 2px 2px 6px; margin-inline: -2px; scrollbar-width: thin; }
  .nav-dots button { flex: 0 0 44px; }
  .question-title { max-width: none; font-size: 1.5rem; letter-spacing: -.02em; }
  .reading-toggle { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 4px; padding: 4px; margin-top: 12px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--card); }
  .reading-toggle button { min-height: 44px; border: 0; border-radius: 7px; background: transparent; color: var(--muted); cursor: pointer; font-weight: 700; }
  .reading-toggle button[aria-selected="true"] { background: var(--accent-soft); color: var(--accent-deep); }
  .exam-reading.view-question .passage-panel,
  .exam-reading.view-passage .question-card { display: none; }
  .exam-reading .mobile-passage-control { display: inline-flex; width: 100%; margin-top: 18px; }
  .exam-reading.view-passage .passage-panel { display: block; }
  .exam-reading.view-passage .passage-panel .mobile-passage-control { display: inline-flex; }
  .submission-card .submission-row { padding-inline: 16px; }
  .mock-library.library-expanded .mock-card-collapsed .skill-links { display: grid; }
  .mock-library.library-expanded .mock-card-collapsed { gap: 16px; }
}

@media (prefers-reduced-motion: reduce) { .sheet-overlay { transition: none; } }