:root {
  color-scheme: dark;
  --bg: #101418;
  --surface: #171d22;
  --surface-2: #1f272d;
  --surface-3: #263039;
  --border: #303a43;
  --border-strong: #43505c;
  --text: #edf2f5;
  --muted: #98a4ad;
  --faint: #6f7b84;
  --green: #44c17c;
  --green-bg: rgba(68, 193, 124, .13);
  --blue: #65a7f3;
  --blue-bg: rgba(101, 167, 243, .13);
  --amber: #e3b341;
  --amber-bg: rgba(227, 179, 65, .14);
  --red: #e66a61;
  --red-bg: rgba(230, 106, 97, .13);
  --violet: #a78bfa;
  --violet-bg: rgba(167, 139, 250, .13);
  --teal: #42c7bd;
  --teal-bg: rgba(66, 199, 189, .13);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 14px;
  line-height: 1.5;
}

button,
input,
select {
  font: inherit;
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px clamp(18px, 4vw, 56px);
  background: rgba(16, 20, 24, .94);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(14px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  flex: 0 0 auto;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  background: linear-gradient(135deg, var(--surface-3), #20362f);
  color: var(--green);
  font-weight: 800;
  letter-spacing: 0;
}

.eyebrow {
  margin: 0 0 2px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.05;
  letter-spacing: 0;
}

.source-pill {
  flex: 0 0 auto;
  max-width: 100%;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 12px;
  color: var(--muted);
  background: var(--surface);
  font-size: 12px;
  white-space: nowrap;
}

.source-pill.ready {
  color: var(--green);
  background: var(--green-bg);
  border-color: rgba(68, 193, 124, .35);
}

.source-pill.error {
  color: var(--red);
  background: var(--red-bg);
  border-color: rgba(230, 106, 97, .35);
}

.shell {
  width: 100%;
  padding: 28px clamp(18px, 4vw, 56px) 42px;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.metric {
  min-width: 0;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.metric-label {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.metric strong {
  display: block;
  font-size: 30px;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.metric small {
  display: block;
  margin-top: 7px;
  color: var(--faint);
}

.toolbar {
  display: grid;
  grid-template-columns: minmax(240px, 1fr) 190px 170px 170px;
  gap: 12px;
  align-items: end;
  margin-bottom: 24px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

label {
  display: grid;
  gap: 6px;
  min-width: 0;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

input,
select {
  width: 100%;
  min-height: 40px;
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 0 11px;
  background: var(--bg);
  color: var(--text);
}

input:focus,
select:focus {
  border-color: var(--blue);
  outline: 2px solid rgba(101, 167, 243, .2);
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 360px);
  gap: 18px;
  align-items: start;
}

.section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 12px;
}

.section-heading h2 {
  font-size: 18px;
  letter-spacing: 0;
}

.section-heading span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.compact {
  margin-bottom: 14px;
}

.book-list {
  display: grid;
  gap: 10px;
}

.book-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 180px;
  gap: 18px;
  align-items: stretch;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.book-card:hover {
  border-color: var(--border-strong);
  background: var(--surface-2);
}

.book-title-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.book-title-row h3 {
  min-width: 0;
  font-size: 16px;
  line-height: 1.25;
}

.book-author {
  margin-top: 5px;
  color: var(--muted);
}

.book-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
  color: var(--muted);
  font-size: 12px;
}

.meta-item {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px 8px;
  background: var(--bg);
}

.tags,
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.tags {
  margin-top: 12px;
}

.tag {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 3px 7px;
  color: var(--muted);
  background: var(--bg);
  font-size: 12px;
}

.book-progress {
  display: grid;
  align-content: center;
  gap: 10px;
  min-width: 0;
}

.book-progress strong {
  font-size: 22px;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.progress-track {
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--bg);
}

.progress-track span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--green), var(--teal));
}

.priority-badge,
.status-badge {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  min-height: 24px;
  border-radius: 999px;
  padding: 3px 9px;
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  white-space: nowrap;
}

.priority-alta {
  color: var(--amber);
  background: var(--amber-bg);
}

.priority-media {
  color: var(--blue);
  background: var(--blue-bg);
}

.priority-baixa {
  color: var(--muted);
  background: var(--surface-3);
}

.status-nao_iniciado {
  color: var(--muted);
  background: var(--surface-3);
}

.status-lendo {
  color: var(--green);
  background: var(--green-bg);
}

.status-pausado {
  color: var(--amber);
  background: var(--amber-bg);
}

.status-concluido {
  color: var(--teal);
  background: var(--teal-bg);
}

.status-referencia {
  color: var(--violet);
  background: var(--violet-bg);
}

.side-column {
  display: grid;
  gap: 14px;
}

.panel {
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.breakdown {
  display: grid;
  gap: 12px;
}

.breakdown-row {
  display: grid;
  gap: 6px;
}

.breakdown-label {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  color: var(--muted);
  font-size: 13px;
}

.bar-track {
  height: 7px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--bg);
}

.bar-fill {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--blue);
}

.empty-state {
  padding: 26px;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  color: var(--muted);
  background: var(--surface);
}

@media (max-width: 1080px) {
  .summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .toolbar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .content-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .app-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

  .summary-grid,
  .toolbar,
  .book-card {
    grid-template-columns: 1fr;
  }

  .book-title-row {
    flex-direction: column;
    align-items: flex-start;
  }
}