:root {
  --bg: #0f1117;
  --surface: #181c27;
  --surface2: #1f2436;
  --border: #2a3050;
  --gold: #e8b84b;
  --gold-dim: #a07d2a;
  --text: #e8e8f0;
  --muted: #7a82a0;
  --green: #4caf8a;
  --blue: #5b8ff9;
  --red: #e05c6a;
  --orange: #f0944a;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, sans-serif;
  min-height: 100vh;
  display: flex;
}

/* ── Sidebar ── */
#sidebar {
  width: 220px;
  min-height: 100vh;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 28px 0;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
}

.brand {
  padding: 0 24px 28px;
  border-bottom: 1px solid var(--border);
}

.brand h1 {
  font-size: 1.15rem;
  color: var(--gold);
  font-weight: 700;
  letter-spacing: 0.5px;
}

.brand p {
  font-size: 0.72rem;
  color: var(--muted);
  margin-top: 3px;
}

nav {
  padding: 20px 12px;
  flex: 1;
}

nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 8px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.88rem;
  margin-bottom: 4px;
  transition: all 0.18s;
  cursor: pointer;
  font-weight: 500;
}

nav a:hover {
  background: var(--surface2);
  color: var(--text);
}

nav a.active {
  background: var(--gold);
  color: #0f1117;
  font-weight: 700;
}

nav a .ico {
  font-size: 1.1rem;
  width: 22px;
  text-align: center;
}

.sidebar-year {
  padding: 16px 24px 0;
  border-top: 1px solid var(--border);
}

.sidebar-year p {
  font-size: 0.7rem;
  color: var(--muted);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.year-btn {
  display: block;
  width: 100%;
  text-align: left;
  padding: 7px 10px;
  border-radius: 7px;
  background: none;
  border: none;
  color: var(--muted);
  font-size: 0.85rem;
  cursor: pointer;
  margin-bottom: 3px;
  transition: all 0.15s;
}

.year-btn:hover {
  background: var(--surface2);
  color: var(--text);
}

.year-btn.active {
  color: var(--gold);
  font-weight: 700;
}

/* ── Main ── */
#main {
  margin-left: 220px;
  flex: 1;
  padding: 32px 36px;
  max-width: 1200px;
}

/* ── Page titles ── */
.page-header {
  margin-bottom: 28px;
}

.page-header h2 {
  font-size: 1.6rem;
  font-weight: 700;
}

.page-header p {
  color: var(--muted);
  font-size: 0.9rem;
  margin-top: 4px;
}

/* ── Cards ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.stat-card .label {
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.stat-card .value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--gold);
  line-height: 1;
}

.stat-card .sub {
  font-size: 0.78rem;
  color: var(--muted);
}

/* ── Goal bar ── */
.goal-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 28px;
}

.goal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.goal-header .title {
  font-size: 0.95rem;
  font-weight: 600;
}

.goal-header .fraction {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--gold);
}

.goal-bar {
  height: 10px;
  background: var(--surface2);
  border-radius: 99px;
  overflow: hidden;
}

.goal-fill {
  height: 100%;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--gold-dim), var(--gold));
  transition: width 0.6s ease;
}

.goal-sub {
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 8px;
}

/* ── Charts row ── */
.charts-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 28px;
}

.chart-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.chart-card h3 {
  font-size: 0.88rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 16px;
}

.chart-wrap {
  position: relative;
  height: 200px;
}

/* ── Section header ── */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.section-header h3 {
  font-size: 0.88rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

/* ── Recent books (dashboard) ── */
.recent-books {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.book-row {
  display: grid;
  grid-template-columns: 1fr 160px 80px 80px 80px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  align-items: center;
  transition: background 0.15s;
}

.book-row:last-child {
  border-bottom: none;
}

.book-row:hover {
  background: var(--surface2);
}

.book-row.header {
  font-size: 0.73rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding: 10px 20px;
}

.book-row .title-col .t {
  font-size: 0.9rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.book-row .title-col .a {
  font-size: 0.78rem;
  color: var(--muted);
}

/* ── Badges ── */
.badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 99px;
  font-size: 0.72rem;
  font-weight: 600;
}

.badge-terror {
  background: #3a1a22;
  color: #e05c6a;
}

.badge-suspense {
  background: #1a2a3a;
  color: #5b8ff9;
}

.badge-acao,
.badge-aventura {
  background: #2a1f0a;
  color: #f0944a;
}

.badge-ficcao {
  background: #1a2a1a;
  color: #4caf8a;
}

.badge-hq {
  background: #261a3a;
  color: #b07ef9;
}

.badge-misterio {
  background: #2a2a1a;
  color: #e8d44b;
}

.badge-fantasia {
  background: #1a263a;
  color: #6ec6f5;
}

.badge-infantil {
  background: #1a2a20;
  color: #5de09c;
}

.badge-default {
  background: var(--surface2);
  color: var(--muted);
}

.stars {
  color: var(--gold);
  font-size: 0.85rem;
  letter-spacing: -1px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  margin-right: 6px;
}

.status-finished {
  background: var(--green);
}

.status-reading {
  background: var(--blue);
}

.status-paused {
  background: var(--orange);
}

/* ── Acervo (book list page) ── */
.filter-bar {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
  align-items: center;
}

.filter-bar input,
.filter-bar select {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 8px 14px;
  font-size: 0.87rem;
  outline: none;
  transition: border-color 0.15s;
}

.filter-bar input {
  flex: 1;
  min-width: 200px;
}

.filter-bar input:focus,
.filter-bar select:focus {
  border-color: var(--gold);
}

.filter-bar select option {
  background: var(--surface2);
}

/* ── Add button ── */
.btn-gold {
  background: var(--gold);
  color: #0f1117;
  border: none;
  border-radius: 8px;
  padding: 9px 18px;
  font-size: 0.87rem;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-gold:hover {
  opacity: 0.85;
}

.btn-outline {
  background: none;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 16px;
  font-size: 0.87rem;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-outline:hover {
  border-color: var(--text);
  color: var(--text);
}

.btn-danger {
  background: none;
  color: var(--red);
  border: 1px solid var(--red);
  border-radius: 7px;
  padding: 6px 12px;
  font-size: 0.82rem;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-danger:hover {
  background: var(--red);
  color: #fff;
}

.btn-edit {
  background: none;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 6px 12px;
  font-size: 0.82rem;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-edit:hover {
  border-color: var(--gold);
  color: var(--gold);
}

/* ── book list (acervo page) ── */
.acervo-row {
  display: grid;
  grid-template-columns: 1fr 150px 70px 90px 90px 90px 110px;
  padding: 11px 20px;
  border-bottom: 1px solid var(--border);
  align-items: center;
  font-size: 0.86rem;
  transition: background 0.15s;
}

.acervo-row:hover {
  background: var(--surface2);
}

.acervo-row.header {
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding: 10px 20px;
}

.acervo-row .t {
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.acervo-row .a {
  font-size: 0.76rem;
  color: var(--muted);
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.actions-col {
  display: flex;
  gap: 6px;
}

/* ── Modal ── */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

.overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  width: 560px;
  max-width: 95vw;
  max-height: 90vh;
  overflow-y: auto;
  padding: 28px 32px;
  transform: translateY(20px);
  transition: transform 0.2s;
}

.overlay.open .modal {
  transform: translateY(0);
}

.modal h3 {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 24px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-grid .full {
  grid-column: 1/-1;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field label {
  font-size: 0.78rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.7px;
}

.field input,
.field select,
.field textarea {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 10px 12px;
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.15s;
}

.field input:focus,
.field select:focus {
  border-color: var(--gold);
}

.field select option {
  background: var(--surface2);
}

.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 24px;
}

.star-rating {
  display: flex;
  gap: 6px;
  align-items: center;
}

.star-btn {
  background: none;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  color: var(--border);
  transition: color 0.1s;
}

.star-btn.on,
.star-btn:hover {
  color: var(--gold);
}

/* ── Empty state ── */
.empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--muted);
}

.empty .ico {
  font-size: 3rem;
  margin-bottom: 12px;
}

/* ── Toast ── */
#toast {
  position: fixed;
  bottom: 28px;
  right: 28px;
  background: var(--green);
  color: #0f1117;
  padding: 12px 20px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 0.88rem;
  transform: translateY(80px);
  opacity: 0;
  transition: all 0.3s;
  z-index: 999;
}

#toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* ── Pages ── */
.page {
  display: none;
}

.page.active {
  display: block;
}

.btn-clear-star {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 0.85rem;
  cursor: pointer;
  margin-left: 6px;
  padding: 2px 6px;
  border-radius: 4px;
  transition: color 0.15s;
}

.btn-clear-star:hover {
  color: var(--red);
}

/* ── Confirm Modal ── */
.confirm-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  color: var(--red);
  font-size: 1.1rem;
  cursor: pointer;
  font-weight: 700;
  line-height: 1;
  padding: 4px 8px;
  border-radius: 6px;
  transition: background 0.15s;
}

.confirm-close:hover {
  background: rgba(224, 92, 106, 0.15);
}

.confirm-icon {
  display: flex;
  justify-content: center;
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 12px;
}

.confirm-msg {
  color: var(--muted);
  font-size: 0.88rem;
  text-align: center;
  margin-top: 6px;
  line-height: 1.5;
}

.btn-danger-lg {
  background: var(--red);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 10px 24px;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.15s;
}

.btn-danger-lg:hover {
  opacity: 0.85;
}
/* ── Year Panel (mobile) ── */
#year-panel-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 150;
}

#year-panel {
  position: fixed;
  top: 0;
  right: -260px;
  width: 240px;
  height: 100vh;
  background: var(--surface);
  border-left: 1px solid var(--border);
  z-index: 151;
  padding: 24px 16px;
  transition: right 0.25s ease;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

#year-panel.open {
  right: 0;
}

#year-panel-overlay.open {
  display: block;
}

.year-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
}

.year-panel-header button {
  background: none;
  border: none;
  color: var(--red);
  font-size: 1rem;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  transition: background 0.15s;
}

.year-panel-header button:hover {
  background: rgba(224, 92, 106, 0.15);
}
#year-nav-btn {
  display: none;
}
.year-panel-btn {
  display: block;
  width: 100%;
  text-align: left;
  padding: 12px 14px;
  border-radius: 8px;
  background: none;
  border: none;
  color: var(--muted);
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.15s;
}

.year-panel-btn:hover {
  background: var(--surface2);
  color: var(--text);
}

.year-panel-btn.active {
  color: var(--gold);
  font-weight: 700;
  background: var(--surface2);
}
/* ── Sidebar year header ── */
.sidebar-year-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.sidebar-year-header p {
  margin-bottom: 0;
}

.btn-new-year {
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 6px;
  width: 24px;
  height: 24px;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
  padding: 0;
  line-height: 1;
}

.btn-new-year:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.year-btn-row {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-bottom: 3px;
}

.year-btn-row .year-btn {
  flex: 1;
  margin-bottom: 0;
}

.year-btn-delete {
  background: none;
  border: none;
  color: transparent;
  font-size: 0.7rem;
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 5px;
  transition: all 0.15s;
  flex-shrink: 0;
}

.year-btn-row:hover .year-btn-delete {
  color: var(--red);
}

.year-btn-delete:hover {
  background: rgba(224, 92, 106, 0.15);
}

/* ── Year panel mobile new btn ── */
.year-panel-new-btn {
  display: block;
  width: 100%;
  text-align: left;
  padding: 12px 14px;
  border-radius: 8px;
  background: none;
  border: 1px dashed var(--border);
  color: var(--muted);
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.15s;
  margin-bottom: 12px;
}

.year-panel-new-btn:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.year-panel-btn-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 4px;
}

.year-panel-btn-row .year-panel-btn {
  flex: 1;
}

.year-panel-delete-btn {
  background: none;
  border: none;
  color: transparent;
  font-size: 0.8rem;
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 6px;
  transition: all 0.15s;
  flex-shrink: 0;
}

.year-panel-btn-row:hover .year-panel-delete-btn {
  color: var(--red);
}

.year-panel-delete-btn:hover {
  background: rgba(224, 92, 106, 0.15);
}
/* ── Reread button ── */
.btn-reread {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--muted);
  padding: 10px 12px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s;
  width: 100%;
  height: 100%;
}

.btn-reread:hover {
  border-color: var(--green);
  color: var(--green);
}

.btn-reread.active {
  border-color: var(--green);
  color: var(--green);
  background: rgba(76, 175, 138, 0.1);
  font-weight: 600;
}

.btn-reread .reread-ico {
  font-size: 0.95rem;
  transition: transform 0.4s ease;
}

.btn-reread.active .reread-ico {
  transform: rotate(360deg);
}

/* Tag releitura no acervo */
.badge-reread {
  background: rgba(76, 175, 138, 0.15);
  color: var(--green);
  border: 1px solid var(--green);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 99px;
  font-size: 0.7rem;
  font-weight: 600;
}
.btn-reread-sm {
  background: none;
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 6px 10px;
  font-size: 0.82rem;
  cursor: pointer;
  transition: all 0.15s;
  color: var(--muted);
}

.btn-reread-sm:hover {
  border-color: var(--green);
  color: var(--green);
}
/* ── Sidebar user ── */
.sidebar-user {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 8px;
}

.user-icon {
  font-size: 1.1rem;
}

.user-name {
  font-size: 0.82rem;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-user-actions {
  display: flex;
  gap: 6px;
  align-items: center;
}

.btn-logout {
  background: none;
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--muted);
  padding: 7px 12px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.15s;
  flex: 1;
  text-align: left;
}

.btn-logout:hover {
  border-color: var(--red);
  color: var(--red);
}

.btn-settings {
  background: none;
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--muted);
  padding: 7px 10px;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.15s;
  flex-shrink: 0;
}

.btn-settings:hover {
  border-color: var(--gold);
  color: var(--gold);
}
/* ── Year panel user info ── */
.year-panel-user {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  color: var(--muted);
  font-size: 0.85rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.year-panel-logout {
  display: block;
  width: 100%;
  text-align: left;
  padding: 10px 14px;
  border-radius: 8px;
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.88rem;
  cursor: pointer;
  transition: all 0.15s;
  margin-bottom: 12px;
}

.year-panel-logout:hover {
  border-color: var(--red);
  color: var(--red);
}
/* ── User Panel (mobile) ── */
#user-panel-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 150;
}

#user-panel {
  position: fixed;
  top: 0;
  right: -260px;
  width: 240px;
  height: 100vh;
  background: var(--surface);
  border-left: 1px solid var(--border);
  z-index: 151;
  padding: 24px 16px;
  transition: right 0.25s ease;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

#user-panel.open {
  right: 0;
}

#user-panel-overlay.open {
  display: block;
}

.user-panel-info {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  color: var(--muted);
  font-size: 0.85rem;
  margin-bottom: 4px;
}

.user-panel-icon {
  font-size: 1.2rem;
}

#user-nav-btn {
  display: none;
}
/* ── Category select ── */
.category-select-wrap {
  display: flex;
  gap: 8px;
  align-items: center;
}

.category-select-wrap select {
  flex: 1;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 10px 12px;
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.15s;
}

.category-select-wrap select:focus {
  border-color: var(--gold);
}

.btn-add-cat {
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--muted);
  width: 38px;
  height: 38px;
  font-size: 1.1rem;
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.btn-add-cat:hover {
  border-color: var(--gold);
  color: var(--gold);
}

/* Badge com subcategoria */
.badge-sub {
  font-size: 0.65rem;
  opacity: 0.8;
  margin-left: 3px;
}
/* ── Estrelas ── */
.star-btn {
  background: none;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  color: var(--border);
  transition: color 0.1s;
  padding: 0;
  line-height: 1;
}

.star-btn.on {
  color: var(--gold);
}

.star-btn:hover {
  color: var(--gold);
}

/* Botão de meia estrela */
.half-btn {
  position: relative;
  background: none;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  padding: 0;
  line-height: 1;
  display: inline-block;
  width: 1em;
  height: 1em;
  vertical-align: middle;
}

/* Estrela de fundo — cinza completa */
.half-btn .star-bg {
  color: var(--border);
  position: absolute;
  top: 0;
  left: 0;
}

/* Metade esquerda dourada — clip na metade direita */
.half-btn .star-fg {
  color: var(--border);
  position: absolute;
  top: 0;
  left: 0;
  clip-path: inset(0 50% 0 0);
  transition: color 0.1s;
}

.half-btn.on .star-fg,
.half-btn:hover .star-fg {
  color: var(--gold);
}

/* ── Meia estrela na listagem (starsHtml) ── */
.star-half-wrap {
  position: relative;
  display: inline-block;
  width: 1em;
  height: 1em;
  vertical-align: auto;
}

.star-half-wrap .star-bg {
  color: var(--border);
}

.star-half-wrap .star-fg {
  position: absolute;
  top: 0;
  left: 0;
  color: var(--gold);
  clip-path: inset(0 50% 0 0);
}

/* ══════════════════════════════════════
   RESPONSIVIDADE — MOBILE (≤768px)
   ══════════════════════════════════════ */
@media (max-width: 768px) {
  html,
  body {
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
  }
  /* Botão ano só aparece no mobile */
  #year-nav-btn {
    display: flex;
  }
  /* ── Sidebar vira barra inferior ── */
  #sidebar {
    width: 100%;
    min-height: unset;
    height: 64px;
    flex-direction: row;
    position: fixed;
    top: unset;
    bottom: 0;
    left: 0;
    right: 0;
    border-right: none;
    border-top: 1px solid var(--border);
    padding: 0;
    z-index: 100;
  }

  .brand,
  .sidebar-year {
    display: none;
  }

  nav {
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    align-items: center;
    padding: 0;
    flex: 1;
    width: 100%;
  }

  nav a {
    flex-direction: column;
    gap: 4px;
    padding: 8px 12px;
    border-radius: 10px;
    font-size: 0.65rem;
    margin-bottom: 0;
    flex: 1;
    justify-content: center;
    text-align: center;
  }

  nav a .ico {
    font-size: 1.2rem;
    width: auto;
  }

  /* No mobile o active não usa fundo dourado, apenas muda a cor do texto */
  nav a.active {
    background: transparent;
    color: var(--gold);
  }

  /* ── Main ── */
  #main {
    margin-left: 0;
    margin-bottom: 80px;
    padding: 20px 16px;
    width: 100%;
    max-width: 100vw;
    overflow-x: hidden;
  }

  /* ── Stats — 2 colunas ── */
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .stat-card .value {
    font-size: 1.6rem;
  }

  /* ── Charts — 1 coluna ── */
  .charts-row {
    grid-template-columns: 1fr;
  }

  /* ── Page header ── */
  .page-header h2 {
    font-size: 1.3rem;
  }

  .section-header {
    align-items: center;
    gap: 8px;
  }

  /* ── Dashboard: Recent Books → Cards ── */
  .recent-books {
    background: transparent;
    border: none;
  }

  .book-row.header {
    display: none;
  }

  .book-row {
    display: grid;
    grid-template-areas:
      "info status"
      "meta meta";
    grid-template-columns: 1fr auto;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 12px;
    gap: 8px;
  }

  .book-row .title-col {
    grid-area: info;
  }

  .book-row > div:last-child {
    grid-area: status;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
  }

  /* Esconde colunas intermediárias no dashboard mobile */
  .book-row > div:nth-child(2),
  .book-row > div:nth-child(3),
  .book-row > div:nth-child(4) {
    display: none;
  }

  /* ── Acervo mobile ── */
  .acervo-row.header {
    display: none;
  }

  .acervo-row {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 12px;
    gap: 8px;
  }

  .acervo-row > div:not(:first-child):not(.actions-col) {
    display: none;
  }

  .acervo-row > div:first-child {
    flex: 1;
    min-width: 0;
  }

  .acervo-row .t {
    font-size: 0.84rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .acervo-row .a {
    font-size: 0.74rem;
    color: var(--muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .actions-col {
    display: flex;
    flex-direction: row;
    gap: 6px;
    flex-shrink: 0;
    align-items: center;
  }

  .btn-edit,
  .btn-danger {
    padding: 7px 10px;
    font-size: 0.82rem;
  }
  #user-nav-btn {
    display: flex;
  }
  /* ── Filter bar ── */
  .filter-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    width: 100%;
    box-sizing: border-box;
  }

  .filter-bar input,
  .filter-bar select {
    width: 100%;
    min-width: 0;
    max-width: 100%;
    box-sizing: border-box;
    font-size: 0.87rem;
  }

  .filter-bar select {
    appearance: auto;
    -webkit-appearance: auto;
  }

  .btn-gold {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    justify-content: center;
    background: transparent;
    color: var(--gold);
    border: 1px solid var(--gold);
    font-weight: 700;
  }

  .btn-gold:hover {
    background: rgba(232, 184, 75, 0.08);
    opacity: 1;
  }

  /* ── Modal ── */
  .modal {
    padding: 24px 20px;
    max-height: 85vh;
  }

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

  .form-grid .full {
    grid-column: 1;
  }

  .star-rating {
    flex-wrap: wrap;
    gap: 4px;
  }

  .star-btn {
    font-size: 1.6rem;
  }

  .modal-actions {
    flex-direction: column-reverse;
    gap: 8px;
  }

  .modal-actions button {
    width: 100%;
    justify-content: center;
    text-align: center;
  }

  /* ── Confirm modal ── */
  .confirm-close {
    top: 12px;
    right: 12px;
  }
  .btn-reread-sm {
    padding: 7px 10px;
    font-size: 0.82rem;
  }
  /* ── Sidebar user — esconde no mobile ── */
  .sidebar-user {
    display: none;
  }
}

/* ══════════════════════════════════════
   EXTRA SMALL (≤380px)
   ══════════════════════════════════════ */
@media (max-width: 380px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  nav a span:not(.ico) {
    display: none;
  }
}