/* ═══════════════════════════════════════════════════════════
   BASE.CSS — resets, layout shell, shared primitives
   ═══════════════════════════════════════════════════════════ */

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--scale-body);
  line-height: 1.6;
  min-height: 100vh;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.25;
  margin: 0 0 var(--space-2) 0;
  color: var(--color-ink);
}

h1 { font-size: var(--scale-h1); }
h2 { font-size: var(--scale-h2); }

p { margin: 0 0 var(--space-2) 0; color: var(--color-ink-dim); }

a {
  color: var(--color-link);
  text-decoration: underline;
  text-decoration-color: var(--color-rule);
}
a:hover { text-decoration-color: var(--color-accent); }

/* visible keyboard focus everywhere — non-negotiable per accessibility brief */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

button {
  font-family: var(--font-body);
  cursor: pointer;
}

textarea, input, select {
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-bg-raised);
}

/* ---- app shell ---- */

#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--color-rule);
}

.app-brand {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.02em;
  color: var(--color-ink);
  text-decoration: none;
}
.app-brand:hover { text-decoration: none; color: var(--color-accent); }

.app-header-actions {
  display: flex;
  gap: var(--space-2);
  align-items: center;
}

.icon-btn {
  background: none;
  border: 1px solid var(--color-rule);
  color: var(--color-ink-dim);
  border-radius: var(--radius);
  padding: 0.4rem 0.7rem;
  font-size: var(--scale-small);
  transition: border-color var(--transition-quiet), color var(--transition-quiet);
}
.icon-btn:hover { border-color: var(--color-accent); color: var(--color-ink); }

.app-main {
  flex: 1;
  display: flex;
  justify-content: center;
  padding: var(--space-5) var(--space-3);
}

.screen {
  width: 100%;
  max-width: var(--content-width);
}

/* ---- shared "screen" rhythm: one question, one box, one button ---- */

.screen-eyebrow {
  font-size: var(--scale-small);
  color: var(--color-ink-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-1);
}

.screen-question {
  font-family: var(--font-display);
  font-size: var(--scale-h1);
  margin-bottom: var(--space-3);
}

.field {
  width: 100%;
  display: block;
  background: var(--color-bg-raised);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius);
  color: var(--color-ink);
  padding: var(--space-2);
  font-size: var(--scale-body);
  resize: vertical;
  min-height: 3.2rem;
  transition: border-color var(--transition-quiet);
}
.field:focus { border-color: var(--color-accent); outline: none; }
.field::placeholder { color: var(--color-ink-faint); }

.field-hint {
  font-size: var(--scale-small);
  color: var(--color-ink-faint);
  margin-top: var(--space-1);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--color-accent);
  color: var(--color-paper);
  border: none;
  border-radius: var(--radius);
  padding: 0.75rem 1.6rem;
  font-size: var(--scale-body);
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: background var(--transition-quiet), transform var(--transition-quiet);
}
.btn:hover { background: var(--color-accent-dim); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-quiet {
  background: none;
  color: var(--color-ink-dim);
  border: 1px solid var(--color-rule);
}
.btn-quiet:hover { background: var(--color-bg-raised); color: var(--color-ink); }

.actions-row {
  margin-top: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* ---- ambient progress: visible, never numbered ("Step 4 of 12" is banned) ---- */

.ambient-progress {
  display: flex;
  gap: 4px;
  margin-bottom: var(--space-4);
}
.ambient-progress-segment {
  height: 3px;
  flex: 1;
  background: var(--color-rule);
  border-radius: 2px;
  overflow: hidden;
}
.ambient-progress-segment.filled { background: var(--color-accent); }

/* ---- editorial review card ---- */

.review-card {
  margin-top: var(--space-3);
  border-left: 3px solid var(--color-accent);
  background: var(--color-bg-raised);
  border-radius: var(--radius);
  padding: var(--space-3);
  animation: review-in 320ms ease;
}
.review-card.pass { border-left-color: var(--color-pass); }

@keyframes review-in {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.review-eyebrow {
  font-size: var(--scale-micro);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: 0.3rem;
}
.review-card.pass .review-eyebrow { color: var(--color-pass); }

.review-headline {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin-bottom: var(--space-1);
}

.review-explanation {
  color: var(--color-ink-dim);
  margin-bottom: var(--space-2);
}

.review-suggestions {
  list-style: none;
  padding: 0;
  margin: 0;
}
.review-suggestions li {
  padding: 0.4rem 0;
  padding-left: 1.2rem;
  position: relative;
  color: var(--color-ink);
  border-top: 1px solid var(--color-rule);
}
.review-suggestions li:first-child { border-top: none; }
.review-suggestions li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--color-ink-faint);
}

/* ---- compare with author ---- */

.compare-card {
  margin-top: var(--space-2);
  background: var(--color-bg-sunken);
  border: 1px dashed var(--color-rule);
  border-radius: var(--radius);
  padding: var(--space-3);
}

.compare-byline {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: var(--space-2);
}

.compare-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-paper);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 0.85rem;
  flex-shrink: 0;
}

.compare-label {
  font-size: var(--scale-small);
  color: var(--color-ink-faint);
}

.compare-book {
  font-family: var(--font-display);
  font-style: italic;
  color: var(--color-ink);
  margin-bottom: var(--space-1);
}

.compare-pending {
  color: var(--color-ink-faint);
  font-size: var(--scale-small);
  font-style: italic;
}

.decision-line {
  margin-bottom: 0.6rem;
  line-height: 1.55;
}
.decision-line:last-child { margin-bottom: 0; }
.decision-line strong {
  display: block;
  font-size: var(--scale-micro);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-ink-faint);
  font-weight: 600;
  margin-bottom: 0.15rem;
}

.decision-principle {
  margin-top: var(--space-2);
  padding-top: var(--space-2);
  border-top: 1px solid var(--color-rule);
  line-height: 1.55;
  font-style: italic;
  color: var(--color-ink);
}
.decision-principle strong {
  display: block;
  font-size: var(--scale-micro);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  font-weight: 600;
  font-style: normal;
  margin-bottom: 0.2rem;
}

/* ---- milestone banner ---- */

.milestone {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--color-pass);
  font-size: var(--scale-small);
  margin-bottom: var(--space-3);
}
.milestone .check { font-size: 1rem; }

/* ---- dashboard book card ---- */

.book-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--color-bg-raised);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius);
  padding: var(--space-3);
  margin-bottom: var(--space-2);
  transition: border-color var(--transition-quiet);
}
.book-card:hover { border-color: var(--color-accent); }

.book-card-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin-bottom: 0.3rem;
}

.book-card-progress {
  font-size: var(--scale-small);
  color: var(--color-ink-faint);
}

/* ---- confidence meter ---- */

.confidence-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-rule);
}
.confidence-row:last-child { border-bottom: none; }

.confidence-dots { display: flex; gap: 4px; }
.confidence-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--color-rule);
}
.confidence-dot.lit { background: var(--color-accent); }
.confidence-dot.lit-pass { background: var(--color-pass); }

@media (max-width: 640px) {
  .app-main { padding: var(--space-4) var(--space-2); }
}

/* ---- upload dropzone ---- */

.dropzone {
  border: 2px dashed var(--color-rule);
  border-radius: var(--radius);
  padding: var(--space-5) var(--space-3);
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition-quiet), background var(--transition-quiet);
}
.dropzone:hover, .dropzone.drag-over {
  border-color: var(--color-accent);
  background: var(--color-bg-raised);
}
.dropzone-icon { font-size: 2rem; margin-bottom: var(--space-2); color: var(--color-ink-faint); }
.dropzone-formats { color: var(--color-ink-faint); font-size: var(--scale-small); margin-top: var(--space-2); }
.dropzone input[type="file"] { display: none; }

.import-progress {
  margin-top: var(--space-3);
}
.import-progress-line {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0;
  color: var(--color-ink-faint);
  font-size: var(--scale-small);
}
.import-progress-line.done { color: var(--color-pass); }
.import-progress-line .checkmark { width: 1.2em; display: inline-block; }

/* ---- book preview ---- */

.confidence-banner {
  border-left: 3px solid var(--color-accent);
  background: var(--color-bg-raised);
  border-radius: var(--radius);
  padding: var(--space-2) var(--space-3);
  margin-bottom: var(--space-3);
  font-size: var(--scale-small);
  color: var(--color-ink);
}

.preview-field-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-rule);
}
.preview-field-label { color: var(--color-ink-faint); font-size: var(--scale-small); }
.preview-field-value { font-family: var(--font-display); }

.chapter-list { margin: var(--space-2) 0; }
.chapter-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-rule);
}
.chapter-row:last-child { border-bottom: none; }
.chapter-row-num { color: var(--color-ink-faint); font-size: var(--scale-small); width: 1.6rem; flex-shrink: 0; }
.chapter-row-title {
  flex: 1;
  background: none;
  border: 1px solid transparent;
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--scale-small);
  padding: 0.3rem 0.5rem;
  border-radius: var(--radius);
}
.chapter-row-title:hover, .chapter-row-title:focus { border-color: var(--color-rule); outline: none; }
.confidence-flag {
  font-size: var(--scale-micro);
  padding: 0.15rem 0.5rem;
  border-radius: 10px;
  white-space: nowrap;
  flex-shrink: 0;
}
.confidence-flag.medium { background: rgba(192,57,43,0.15); color: var(--color-accent); }
.confidence-flag.low { background: rgba(192,57,43,0.3); color: var(--color-accent); }

/* ---- severity badges & editorial review list ---- */

.severity-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: var(--scale-micro);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.6rem;
  border-radius: 10px;
  flex-shrink: 0;
}
.severity-badge.critical { background: rgba(192,57,43,0.18); color: #e8665a; }
.severity-badge.important { background: rgba(192,57,43,0.10); color: var(--color-accent); }
.severity-badge.minor { background: rgba(168,158,140,0.15); color: var(--color-ink-dim); }
.severity-badge.informational { background: rgba(168,158,140,0.1); color: var(--color-ink-faint); }

.report-summary-row {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
}
.report-summary-item { font-size: var(--scale-small); color: var(--color-ink-dim); }
.report-summary-item strong { color: var(--color-ink); font-family: var(--font-display); font-size: 1.1rem; }

.issue-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--color-bg-raised);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius);
  margin-bottom: 0.6rem;
  cursor: pointer;
  transition: border-color var(--transition-quiet);
  text-align: left;
  width: 100%;
  font-family: var(--font-body);
  color: var(--color-ink);
  font-size: var(--scale-body);
}
.issue-row:hover { border-color: var(--color-accent); }
.issue-row-headline { flex: 1; }

.minor-disclosure summary {
  cursor: pointer;
  color: var(--color-ink-faint);
  font-size: var(--scale-small);
  padding: var(--space-2) 0;
}
.minor-disclosure .issue-row { background: none; border-style: dashed; }

.no-issues-banner {
  border-left: 3px solid var(--color-pass);
  background: var(--color-bg-raised);
  border-radius: var(--radius);
  padding: var(--space-3);
  color: var(--color-ink);
}

/* ---- issue detail ---- */

.issue-detail-section {
  margin-bottom: var(--space-3);
}
.issue-detail-label {
  font-size: var(--scale-micro);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-ink-faint);
  margin-bottom: 0.4rem;
}
.issue-detail-text { color: var(--color-ink); }