*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #faf7f2;
  --bg2:       #ffffff;
  --bg3:       #f5f1ea;
  --bg4:       #ede8de;
  --border:    #d9d0be;
  --border2:   #c8bda8;
  --ink:       #1a1410;
  --ink2:      #4a3f35;
  --ink3:      #7a6f65;
  --amber:     #b5763a;
  --amber-dim: #d4a06a;
  --amber-pale:#fdf0e0;
  --amber-glow:rgba(181,118,58,0.12);
  --teal:      #2e7d6b;
  --teal-pale: #e8f5f2;
  --red-pale:  #fdf0ee;
  --red:       #c0513a;
}

body {
  background: var(--bg);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='0.025'/%3E%3C/svg%3E");
  font-family: 'Lato', sans-serif;
  color: var(--ink);
  min-height: 100vh;
  padding: 0 0 80px;
}

/* ── Header ── */
.header {
  background: var(--ink);
  padding: 28px 40px 12px;
  display: flex;
  align-items: baseline;
  gap: 20px;
}
.header-logo {
  font-family: 'Playfair Display', serif;
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  letter-spacing: .02em;
  line-height: 1;
}
.header-logo span { color: var(--amber-dim); }
.header-sub {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  font-weight: 300;
  color: rgba(255,255,255,0.45);
  letter-spacing: .08em;
  text-transform: uppercase;
}
.header-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
}
.keys-saved-badge {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  font-weight: 300;
  color: var(--teal);
  background: var(--teal-pale);
  border: 1px solid rgba(46,125,107,0.25);
  padding: 5px 12px;
  border-radius: 20px;
  letter-spacing: .04em;
}
.keys-saved-badge.hidden { display: none; }

/* ── Tabs ── */
.tab-bar {
  background: var(--ink);
  padding: 0 40px;
  display: flex;
  gap: 32px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.tab-btn {
  background: transparent;
  border: none;
  color: rgba(255,255,255,0.5);
  padding: 14px 0;
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}
.tab-btn.active {
  color: var(--amber-dim);
  border-bottom-color: var(--amber-dim);
}
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── Layout ── */
.main { max-width: 880px; margin: 0 auto; padding: 36px 24px 0; }

.section-title {
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--ink3);
  margin-bottom: 12px;
  margin-top: 32px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.section-title:first-of-type { margin-top: 0; }

/* ── Cards ── */
.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 22px;
  margin-bottom: 16px;
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}
.card-header-title {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink2);
}
.card-toggle {
  background: transparent;
  border: none;
  color: var(--ink3);
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  cursor: pointer;
}
.card-body { margin-top: 16px; }
.card.collapsed .card-body { display: none; }

/* ── Form fields ── */
.field { display: flex; flex-direction: column; gap: 6px; }
.field label {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink2);
  font-weight: 400;
}
.field input,
.field select,
.field textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 10px 12px;
  font-family: 'Lato', sans-serif;
  font-size: 14px;
  color: var(--ink);
  outline: none;
}
.field textarea {
  resize: vertical;
  line-height: 1.55;
  min-height: 100px;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--amber-dim);
  background: var(--bg2);
}
.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.field-row-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 14px;
}
.hint {
  font-size: 12px;
  color: var(--ink3);
  line-height: 1.5;
  margin-top: 4px;
}

/* ── Buttons ── */
.btn-primary {
  background: var(--ink);
  color: #fff;
  border: none;
  border-radius: 4px;
  padding: 12px 24px;
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  cursor: pointer;
  margin-top: 8px;
}
.btn-primary:hover { background: var(--amber); }
.btn-primary:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary.full { width: 100%; }

.btn-secondary {
  background: var(--bg2);
  color: var(--ink2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 8px 16px;
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  letter-spacing: .1em;
  text-transform: uppercase;
  cursor: pointer;
}
.btn-secondary:hover { background: var(--bg3); border-color: var(--border2); }

.btn-ghost {
  background: transparent;
  color: var(--ink3);
  border: none;
  padding: 6px 10px;
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  cursor: pointer;
}
.btn-ghost:hover { color: var(--red); }

.btn-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 12px; }

/* ── Alerts ── */
.alert {
  border-radius: 4px;
  padding: 12px 16px;
  font-size: 13px;
  font-family: 'Lato', sans-serif;
  margin-bottom: 16px;
  border: 1px solid var(--border);
  background: var(--bg3);
  color: var(--ink2);
  white-space: pre-wrap;
}
.alert.error { background: var(--red-pale); border-color: rgba(192,81,58,0.3); color: var(--red); }
.alert.success { background: var(--teal-pale); border-color: rgba(46,125,107,0.3); color: var(--teal); }

.hidden { display: none !important; }

/* ── Outline step ── */
.outline-list { display: flex; flex-direction: column; gap: 10px; }
.outline-item {
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 14px 16px;
  background: var(--bg);
}
.outline-item-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}
.outline-item-index {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  letter-spacing: .1em;
  color: var(--amber);
}
.outline-item-title {
  font-family: 'Playfair Display', serif;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  background: transparent;
  border: none;
  width: 100%;
  outline: none;
}
.outline-item-summary {
  width: 100%;
  border: none;
  background: transparent;
  font-family: 'Lato', sans-serif;
  font-size: 13px;
  color: var(--ink2);
  line-height: 1.55;
  resize: vertical;
  outline: none;
  min-height: 40px;
}
.outline-item-concepts {
  font-size: 12px;
  color: var(--ink3);
  margin-top: 6px;
  line-height: 1.5;
}

/* ── Pages editor ── */
.page-card {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 18px 20px;
  background: var(--bg2);
  margin-bottom: 14px;
}
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.page-label {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--amber);
}
.block { border: 1px solid var(--border); border-radius: 4px; padding: 12px 14px; background: var(--bg); margin-bottom: 10px; }
.block-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}
.block-type-pill {
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--ink3);
  background: var(--bg4);
  padding: 3px 8px;
  border-radius: 10px;
}
.block-type-pill.image { color: var(--amber); background: var(--amber-pale); }
.block-type-pill.quiz  { color: var(--teal);  background: var(--teal-pale); }
.block-type-pill.arabic{ color: var(--red);   background: var(--red-pale); }

.block textarea, .block input {
  width: 100%;
  border: none;
  background: transparent;
  font-family: 'Lato', sans-serif;
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink);
  outline: none;
  resize: vertical;
}
.block textarea { min-height: 40px; }
.block .small-label {
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink3);
  margin: 8px 0 2px;
}

.block-arabic textarea { font-family: 'Amiri Quran', 'Scheherazade New', 'Lato', serif; font-size: 20px; direction: rtl; }

.block-image-preview {
  margin-top: 10px;
  border-radius: 4px;
  overflow: hidden;
  background: var(--bg4);
  border: 1px dashed var(--border2);
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.block-image-preview img { width: 100%; display: block; }
.block-image-placeholder {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  color: var(--ink3);
  padding: 30px;
  text-align: center;
}

/* ── Quiz/TF editor blocks ── */
.qa-list { display: flex; flex-direction: column; gap: 10px; }
.qa-item {
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 14px;
  background: var(--bg);
}
.qa-difficulty {
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 10px;
  background: var(--bg4);
  color: var(--ink3);
}
.qa-difficulty.easy   { background: var(--teal-pale); color: var(--teal); }
.qa-difficulty.medium { background: var(--amber-pale); color: var(--amber); }
.qa-difficulty.hard   { background: var(--red-pale); color: var(--red); }

.qa-options { display: flex; flex-direction: column; gap: 4px; margin-top: 6px; }
.qa-option {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; padding: 4px 6px;
}
.qa-option input[type=radio] { accent-color: var(--amber); }
.qa-option.correct { background: var(--teal-pale); border-radius: 4px; }

/* ── Browse tab ── */
.lesson-list { display: flex; flex-direction: column; gap: 16px; }
.lesson-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg2);
  cursor: pointer;
}
.lesson-row:hover { border-color: var(--amber-dim); background: var(--amber-pale); }
.lesson-row-title { font-family: 'Playfair Display', serif; font-size: 16px; color: var(--ink); }
.lesson-row-meta { font-family: 'DM Mono', monospace; font-size: 10px; color: var(--ink3); letter-spacing: .08em; }

.lesson-group { border: 1px dashed var(--border); border-radius: 6px; padding: 10px; }
.lesson-group.drag-over { border-color: var(--amber); background: var(--amber-pale); }
.lesson-group-head {
  display: flex; align-items: center; gap: 8px;
  font-family: 'DM Mono', monospace; font-size: 11px;
  color: var(--ink3); letter-spacing: .12em; text-transform: uppercase;
  margin-bottom: 8px;
}
.lesson-group-rows { display: flex; flex-direction: column; gap: 6px; }
.lesson-row.dragging { opacity: .35; }
.lesson-row.drop-before { box-shadow: inset 0 3px 0 var(--amber); }
.lesson-row.drop-after  { box-shadow: inset 0 -3px 0 var(--amber); }
.lesson-drag-handle {
  cursor: grab; padding: 0 8px; font-size: 18px;
  color: var(--ink3); user-select: none;
}
.lesson-drag-handle:active { cursor: grabbing; }

.preview-block {
  border-left: 3px solid var(--border);
  padding: 8px 0 8px 14px;
  margin-bottom: 8px;
  font-size: 14px;
  line-height: 1.55;
}
.preview-block.image    { border-color: var(--amber); }
.preview-block.quiz     { border-color: var(--teal); }
.preview-block.arabic   { border-color: var(--red); }
.preview-block.heading  { border-color: var(--ink); }

.preview-block h3 { font-family: 'Playfair Display', serif; font-size: 18px; margin-bottom: 4px; }
.preview-block img { max-width: 100%; border-radius: 4px; margin-top: 6px; }
.preview-block .meta {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  color: var(--ink3);
  letter-spacing: .1em;
  margin-bottom: 4px;
  text-transform: uppercase;
}

/* ── Progress bar ── */
.progress-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 14px 18px;
  margin-bottom: 16px;
}
.progress-bar-track {
  height: 4px;
  background: var(--bg4);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 8px;
}
.progress-bar-fill {
  height: 100%;
  background: var(--amber);
  transition: width .25s;
  width: 0%;
}
.progress-label {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  color: var(--ink2);
  letter-spacing: .05em;
}

/* ── Step header (current / completed) ── */
.step-pill {
  display: inline-block;
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  letter-spacing: .15em;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 10px;
  background: var(--bg4);
  color: var(--ink3);
  margin-right: 8px;
}
.step-pill.active { background: var(--amber-pale); color: var(--amber); }
.step-pill.done   { background: var(--teal-pale); color: var(--teal); }

/* ── Drop zone for PDF ── */
.drop-zone {
  border: 2px dashed var(--border2);
  border-radius: 4px;
  padding: 28px 24px;
  text-align: center;
  cursor: pointer;
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  color: var(--ink3);
  letter-spacing: .08em;
  transition: border-color .2s, background .2s;
}
.drop-zone.hover { border-color: var(--amber); background: var(--amber-pale); }

/* ── Misc ── */
.mono { font-family: 'DM Mono', monospace; font-size: 11px; color: var(--ink3); letter-spacing: .05em; }
.row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.spacer { flex: 1; }

/* ── Batch tab ── */
.batch-table {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.batch-row {
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 12px;
  background: var(--bg2);
  display: grid;
  grid-template-columns: 38px 1fr 1fr;
  gap: 10px;
  align-items: start;
}
.batch-row-index {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  color: var(--ink3);
  padding-top: 6px;
  letter-spacing: .08em;
}
.batch-row-main { display: flex; flex-direction: column; gap: 8px; }
.batch-row-side { display: flex; flex-direction: column; gap: 8px; }
.batch-row input,
.batch-row textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 6px 8px;
  font-family: inherit;
  font-size: 13px;
  background: var(--bg);
}
.batch-row textarea { resize: vertical; }
.batch-row .batch-row-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.batch-row .batch-row-meta label {
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  color: var(--ink3);
  letter-spacing: .08em;
  display: block;
  margin-bottom: 2px;
}
.batch-row-controls {
  display: flex;
  justify-content: flex-end;
  gap: 6px;
}

.batch-unit {
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg3);
  padding: 12px;
  margin-bottom: 14px;
}
.batch-unit-head {
  display: grid;
  grid-template-columns: 1fr 1fr 100px auto;
  gap: 8px;
  align-items: end;
  margin-bottom: 10px;
}
.batch-unit-head label {
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  color: var(--ink3);
  letter-spacing: .08em;
  display: block;
  margin-bottom: 2px;
}
.batch-unit-head input {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 6px 8px;
  font-family: inherit;
  font-size: 13px;
  background: var(--bg2);
}
.batch-unit-head .unit-pill {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  letter-spacing: .06em;
  padding: 3px 8px;
  border-radius: 10px;
  background: var(--bg4);
  color: var(--ink3);
}
.batch-unit-head .unit-pill.reused { background: var(--teal-pale); color: var(--teal); }
.batch-unit-head .unit-pill.new    { background: var(--amber-pale); color: var(--amber); }
.batch-unit-controls { display: flex; gap: 6px; justify-content: flex-end; }
.batch-unit-lessons { display: flex; flex-direction: column; gap: 10px; }

/* ── Batch run progress rows ── */
.batch-run-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.batch-run-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg2);
  font-size: 13px;
}
.batch-run-row .run-title { flex: 1; font-weight: 600; }
.batch-run-row .run-phase {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  color: var(--ink3);
  padding: 3px 8px;
  border-radius: 10px;
  background: var(--bg4);
  letter-spacing: .06em;
  white-space: nowrap;
}
.batch-run-row .run-phase.pending  { background: var(--bg4); color: var(--ink3); }
.batch-run-row .run-phase.running  { background: var(--amber-pale); color: var(--amber); }
.batch-run-row .run-phase.done     { background: var(--teal-pale); color: var(--teal); }
.batch-run-row .run-phase.error    { background: var(--red-pale); color: var(--red); }
.batch-run-row .run-error {
  flex-basis: 100%;
  font-size: 12px;
  color: var(--red);
  margin-top: 4px;
}

/* ── Cover image modal ───────────────────────────────────────────── */
.cover-modal {
  position: fixed;
  inset: 0;
  background: rgba(26, 20, 16, 0.55);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 60px 16px 16px;
  z-index: 100;
  overflow-y: auto;
}
.cover-modal.hidden { display: none; }
.cover-modal-panel {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 22px;
  width: 100%;
  max-width: 560px;
  box-shadow: 0 14px 40px rgba(26, 20, 16, 0.25);
}
.cover-modal-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 14px;
}
.cover-modal-title {
  font-family: 'Playfair Display', serif;
  font-size: 20px;
  font-weight: 600;
  color: var(--ink);
}
.cover-modal-subject {
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  color: var(--ink3);
  margin-top: 2px;
}
.cover-modal-preview {
  border: 1px dashed var(--border);
  border-radius: 6px;
  padding: 10px;
  background: var(--bg3);
  margin-bottom: 14px;
  text-align: center;
  min-height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.cover-modal-preview img {
  max-width: 100%;
  max-height: 260px;
  border-radius: 4px;
  display: block;
}
.cover-modal-preview .placeholder {
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  color: var(--ink3);
}
.cover-modal-status {
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  margin-top: 10px;
  min-height: 18px;
}
.cover-modal-actions {
  display: flex;
  gap: 8px;
  margin-top: 14px;
  justify-content: flex-end;
}