/* ─────────────────────────────────────────────
   Biblioteca FEC — Unified Stylesheet
   Warm editorial · clean & modern
   ───────────────────────────────────────────── */

/* ── Tokens ────────────────────────────────── */
:root {
  --ink:        #1e1510;
  --ink-muted:  #6b5e52;
  --paper:      #faf7f2;
  --parchment:  #f0e8d8;
  --sand:       #e4d9c4;
  --espresso:   #3b1f14;
  --mahogany:   #6b3a22;
  --brass:      #b07830;
  --brass-light:#d4a85a;
  --dust:       #c8a87a;
  --sage:       #3d6b50;
  --clay:       #b84444;
  --amber:      #c47b10;
  --border:     rgba(176,120,48,.16);
  --border-mid: rgba(176,120,48,.28);
  --shadow-xs:  0 1px 3px rgba(30,21,16,.06);
  --shadow-sm:  0 2px 8px rgba(30,21,16,.08);
  --shadow-md:  0 4px 20px rgba(30,21,16,.10);
  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  14px;
  --transition: 180ms ease;
}

/* ── Reset ─────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
img { display: block; max-width: 100%; }

/* ── Base ──────────────────────────────────── */
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: .9375rem;
  line-height: 1.6;
  background-color: var(--paper);
  color: var(--ink);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4 {
  font-family: 'Cormorant Garamond', 'Cormorant', Georgia, serif;
  line-height: 1.25;
  color: var(--espresso);
}

a { color: var(--mahogany); text-decoration: none; }
a:hover { color: var(--espresso); }

/* ── Layout helpers ────────────────────────── */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Header ────────────────────────────────── */
header {
  background: var(--espresso);
  color: var(--parchment);
  padding: 14px 0;
  border-bottom: 3px solid var(--brass);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.logo { display: flex; align-items: center; gap: 12px; }

.logo-icon {
  font-size: 1.75rem;
  color: var(--brass-light);
}

.logo-text {
  font-family: 'Cinzel', serif;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--parchment);
}

/* ── Sidebar ───────────────────────────────── */
.main {
  display: flex;
  flex: 1;
}

nav.sidebar {
  width: 230px;
  flex-shrink: 0;
  background: var(--espresso);
  padding: 20px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.user-info {
  padding: 14px 12px;
  background: rgba(255,255,255,.06);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,.08);
  margin-bottom: 18px;
}

.user-info strong {
  display: block;
  color: var(--brass-light);
  font-size: .9375rem;
  margin-bottom: 2px;
}

.user-info span,
.user-info br + * {
  font-size: .8125rem;
  color: rgba(240,232,216,.6);
}

nav ul { list-style: none; display: flex; flex-direction: column; gap: 2px; }

nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  color: rgba(240,232,216,.82);
  font-size: .875rem;
  font-weight: 500;
  transition: background var(--transition), color var(--transition);
  border-left: 2px solid transparent;
}

nav a:hover,
nav a.active {
  background: rgba(255,255,255,.09);
  color: var(--parchment);
  border-left-color: var(--brass-light);
}

nav a i { width: 18px; text-align: center; font-size: .875rem; flex-shrink: 0; }

/* ── Main content area ─────────────────────── */
main.content {
  flex: 1;
  padding: 32px 28px;
  min-width: 0;
  overflow-y: auto;
  background: var(--paper);
}

/* ── Footer ────────────────────────────────── */
footer {
  background: var(--espresso);
  color: rgba(240,232,216,.7);
  padding: 16px 0;
  text-align: center;
  font-size: .8125rem;
  border-top: 2px solid var(--brass);
}

/* ── Welcome screen ────────────────────────── */
.welcome-content {
  max-width: 640px;
  margin: 60px auto;
  text-align: center;
  padding: 0 20px;
}

.welcome-content h2 {
  font-family: 'Cinzel', serif;
  font-size: 2.2rem;
  color: var(--espresso);
  margin-bottom: 14px;
}

.welcome-content p {
  font-size: 1.0625rem;
  color: var(--ink-muted);
  margin-bottom: 32px;
}

.welcome-icon {
  font-size: 4rem;
  color: var(--brass);
  margin-bottom: 24px;
  display: block;
  animation: gentle-pulse 3s ease-in-out infinite;
}

@keyframes gentle-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: .8; transform: scale(1.05); }
}

/* ── Page container (all sub-pages) ─────────── */
.assuntos-container,
.autores-container,
.classificacao-container,
.coautores-container,
.editoras-container,
.livros-container,
.localizacao-container,
.password-container,
.users-container {
  background: var(--paper);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
  padding: 28px 24px;
  margin-bottom: 24px;
}

/* ── Page header ───────────────────────────── */
.page-header {
  text-align: center;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.page-header h1 {
  font-family: 'Cinzel', serif;
  font-size: 1.875rem;
  color: var(--espresso);
  letter-spacing: .02em;
  margin-bottom: 4px;
}

.page-header p {
  font-family: 'Cormorant Garamond', 'Cormorant', serif;
  font-size: 1.0625rem;
  color: var(--ink-muted);
  font-style: italic;
}

/* ── Filter section ────────────────────────── */
.filter-section {
  background: var(--parchment);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  padding: 16px 20px;
  margin-bottom: 20px;
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: flex-end;
}

.filter-group {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 200px;
}

.filter-label,
.form-label {
  display: block;
  font-size: .8125rem;
  font-weight: 600;
  color: var(--ink-muted);
  letter-spacing: .03em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.search-container { flex-grow: 2; }

/* ── Form controls ─────────────────────────── */
.form-control,
.form-select {
  width: 100%;
  padding: 9px 13px;
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: .9375rem;
  color: var(--ink);
  background: #fff;
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
}

.form-control:focus,
.form-select:focus {
  outline: none;
  border-color: var(--brass);
  box-shadow: 0 0 0 3px rgba(176,120,48,.15);
}

.form-control::placeholder { color: rgba(107,94,82,.5); }

textarea.form-control { resize: vertical; min-height: 90px; }

.input-group {
  display: flex;
  gap: 0;
}

.input-group .form-control {
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  border-right: none;
  flex: 1;
}

.input-group .btn:first-of-type {
  border-radius: 0;
}

.input-group .btn:last-of-type {
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* ── Buttons ───────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 9px 18px;
  font-family: inherit;
  font-size: .875rem;
  font-weight: 500;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-decoration: none;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}

.btn:hover  { transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.btn:active { transform: translateY(0);    box-shadow: none; }

.btn-primary   { background: var(--espresso);  color: var(--parchment); }
.btn-primary:hover { background: var(--mahogany); color: var(--parchment); }

.btn-secondary { background: var(--mahogany);  color: var(--parchment); }
.btn-secondary:hover { background: var(--espresso); color: var(--parchment); }

.btn-success   { background: var(--sage);  color: #fff; }
.btn-success:hover { background: #2f5540; }

.btn-warning   { background: var(--amber); color: #fff; }
.btn-warning:hover { background: #a3670c; }

.btn-danger    { background: var(--clay);  color: #fff; }
.btn-danger:hover  { background: #9a3636; }

.btn-outline-primary {
  background: transparent;
  border: 1px solid var(--border-mid);
  color: var(--ink-muted);
}
.btn-outline-primary:hover {
  background: var(--parchment);
  border-color: var(--brass);
  color: var(--espresso);
}

.btn-lg { padding: 11px 22px; font-size: .9375rem; border-radius: var(--radius-sm); }
.btn-sm { padding: 6px 12px;  font-size: .8125rem; }

/* ── Table ─────────────────────────────────── */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: #fff;
  margin-bottom: 20px;
  box-shadow: var(--shadow-xs);
}

table {
  width: 100%;
  border-collapse: collapse;
}

.table-header,
thead tr {
  background: var(--espresso);
}

.table-header th,
thead th {
  padding: 12px 16px !important;
  text-align: left;
  font-family: inherit !important;
  font-size: .75rem !important;
  font-weight: 700 !important;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: #ffffff !important;
  background-color: var(--espresso) !important;
  border-bottom: 2px solid var(--brass) !important;
  white-space: nowrap;
}

tbody tr {
  border-bottom: 1px solid rgba(176,120,48,.08);
  transition: background var(--transition);
}

tbody tr:last-child { border-bottom: none; }

tbody tr:hover { background: rgba(176,120,48,.06); }

td {
  padding: 11px 16px;
  font-size: .9rem;
  color: var(--ink);
  vertical-align: middle;
}

/* ── Sort headers ──────────────────────────── */
.sort-header {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  border-radius: 3px;
  padding: 2px 4px;
  transition: background var(--transition);
}

.sort-header:hover { background: rgba(255,255,255,.1); }
.sort-icon { font-size: .7em; opacity: .7; }

/* ── Action buttons ────────────────────────── */
.action-buttons {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Cards ─────────────────────────────────── */
.card {
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
  overflow: hidden;
}

.card-header {
  background: linear-gradient(135deg, var(--espresso), var(--mahogany));
  color: var(--parchment);
  padding: 18px 24px;
  font-family: 'Cinzel', serif;
  font-size: 1.125rem;
  border-bottom: 2px solid var(--brass);
}

.card-body { padding: 28px; }

/* ── Modal overrides ───────────────────────── */
.modal-content {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.modal-header {
  background: var(--espresso);
  color: var(--parchment);
  border-bottom: 2px solid var(--brass);
  padding: 18px 24px;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.modal-title {
  font-family: 'Cinzel', serif;
  font-size: 1rem;
  color: var(--parchment);
}

.modal-header .btn-close {
  filter: invert(1) opacity(.7);
}

.modal-footer {
  border-top: 1px solid var(--border);
  padding: 14px 24px;
  gap: 10px;
}

.modal-body { padding: 24px; background: var(--paper); }

/* ── Alerts / notifications ────────────────── */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: .9rem;
  margin-bottom: 16px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.alert-success,
.alert.alert-success  { background: #edf7f1; color: var(--sage);  border: 1px solid #c3e6cb; }

.alert-error,
.alert.alert-error    { background: #fdf1f1; color: var(--clay);  border: 1px solid #f5c6c6; }

.alert-warning        { background: #fef8ec; color: var(--amber); border: 1px solid #fde8b0; }

/* floating toast */
.notification {
  position: fixed;
  top: 24px;
  right: 24px;
  padding: 13px 20px;
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: .9rem;
  font-weight: 500;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateX(110%);
  transition: opacity .3s ease, transform .3s ease;
  z-index: 9999;
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 340px;
}

.notification.show    { opacity: 1; transform: translateX(0); }
.notification.success { background: var(--sage); }
.notification.error   { background: var(--clay); }

/* ── Empty state ───────────────────────────── */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--ink-muted);
}

.empty-state i {
  font-size: 2.5rem;
  margin-bottom: 16px;
  opacity: .35;
  display: block;
}

.empty-state h3 { font-size: 1.1rem; margin-bottom: 6px; color: var(--ink-muted); }
.empty-state p  { font-size: .875rem; }

/* ── Error messages (inline) ───────────────── */
.error-message {
  color: var(--clay);
  font-size: .875rem;
  margin-top: 6px;
}

/* ── Toggle biography ─────────────────────── */
.biografia-short {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.toggle-biografia {
  font-size: .8125rem;
  color: var(--brass);
  font-weight: 600;
  margin-top: 4px;
  display: inline-block;
}

.toggle-biografia:hover { color: var(--espresso); }

/* ── Spacer ────────────────────────────────── */
.spacer { height: 20px; }

/* ── Skeleton loader ───────────────────────── */
.skeleton-loader {
  padding: 24px;
}

.skeleton-line {
  height: 14px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--sand) 25%, var(--parchment) 50%, var(--sand) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  margin-bottom: 12px;
}

.skeleton-line:nth-child(2) { width: 75%; }
.skeleton-line:nth-child(3) { width: 55%; }

@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ── Login page ────────────────────────────── */
.login-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
}


.login-page body,
body.login-page {
  justify-content: stretch;
}

.login-container {
  max-width: 420px;
  width: 100%;
  margin: 0;
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
}

.login-header {
  background: linear-gradient(135deg, var(--espresso), var(--mahogany));
  color: var(--parchment);
  padding: 28px 24px;
  text-align: center;
  font-family: 'Cinzel', serif;
  font-size: 1.25rem;
  border-bottom: 2px solid var(--brass);
}

.login-header i { margin-right: 8px; }

.login-form { padding: 28px 28px 24px; }

.form-group { margin-bottom: 20px; }

.form-group label {
  display: block;
  font-size: .8125rem;
  font-weight: 600;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: .04em;
  margin-bottom: 7px;
}

.btn-login {
  width: 100%;
  justify-content: center;
  padding: 11px 18px;
  font-size: .9375rem;
  font-weight: 600;
  background: var(--espresso);
  color: var(--parchment);
  border-radius: var(--radius-sm);
  letter-spacing: .02em;
}

.btn-login:hover { background: var(--mahogany); color: var(--parchment); }

.btn-link {
  background: none;
  border: none;
  color: var(--brass);
  font-size: .875rem;
  cursor: pointer;
  display: block;
  text-align: center;
  margin: 14px auto 0;
  padding: 4px 0;
  text-decoration: none;
}

.btn-link:hover { color: var(--espresso); }

.info-box {
  background: #eef4fb;
  border: 1px solid #c4dcf5;
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  margin-bottom: 20px;
  font-size: .875rem;
  color: #2c5282;
}

/* login footer */
.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.version {
  background: var(--mahogany);
  padding: 3px 12px;
  border-radius: 20px;
  font-size: .75rem;
  color: var(--parchment);
}

/* ── Responsive ────────────────────────────── */

/* ─ Tablet landscape (≤1024px) ─ */
@media (max-width: 1024px) {
  nav.sidebar { width: 200px; }
  main.content { padding: 24px 20px; }
  td { font-size: .875rem; padding: 10px 12px; }
  thead th { font-size: .7rem !important; padding: 10px 12px !important; }
}

/* ─ Tablet portrait / large phone (≤768px) ─ */
@media (max-width: 768px) {
  /* Layout */
  .main { flex-direction: column; }

  /* Sidebar → horizontal scrollable strip */
  nav.sidebar {
    width: 100%;
    flex-direction: row;
    flex-wrap: nowrap;
    padding: 6px 10px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: 0;
  }
  nav.sidebar::-webkit-scrollbar { display: none; }
  .user-info { display: none; }
  nav ul { flex-direction: row; flex-wrap: nowrap; gap: 2px; width: max-content; }
  nav a {
    padding: 8px 12px;
    font-size: .8rem;
    white-space: nowrap;
    border-left: none;
    border-bottom: 2px solid transparent;
  }
  nav a:hover, nav a.active {
    border-left-color: transparent;
    border-bottom-color: var(--brass-light);
  }

  /* Content */
  main.content { padding: 16px 14px; }
  .logo-text { font-size: 1.2rem; }
  .page-header { margin-bottom: 18px; }
  .page-header h1 { font-size: 1.375rem; }
  .page-header p { font-size: .95rem; }

  /* Filters */
  .filter-row { flex-direction: column; gap: 10px; }
  .filter-group { min-width: 100%; }

  /* Table — compact but still scrollable */
  .table-container { border-radius: var(--radius-sm); }
  thead th { font-size: .68rem !important; padding: 9px 10px !important; letter-spacing: .04em; }
  td { padding: 9px 10px; font-size: .85rem; }

  /* Action buttons stack */
  .action-buttons { flex-direction: column; gap: 5px; }
  .action-buttons .btn { width: 100%; justify-content: center; }

  /* Modals → full screen */
  .modal-dialog,
  .modal-dialog.modal-lg,
  .modal-dialog.modal-xl {
    margin: 0;
    max-width: 100%;
    width: 100%;
  }
  .modal-content {
    border-radius: 0;
    min-height: 100dvh;
    min-height: 100vh;
  }

  /* Page containers */
  .assuntos-container, .autores-container, .classificacao-container,
  .coautores-container, .editoras-container, .livros-container,
  .localizacao-container, .password-container, .users-container {
    padding: 16px 12px;
  }

  /* Login */
  .login-main { padding: 20px 16px; align-items: flex-start; }
  .footer-content { flex-direction: column; gap: 8px; }
  .notification { top: auto; bottom: 16px; right: 10px; left: 10px; max-width: none; }
}

/* ─ Small phone (≤540px) — stacked card tables ─ */
@media (max-width: 540px) {
  header { padding: 10px 0; }
  .logo-icon { font-size: 1.4rem; }
  .logo-text { font-size: 1rem; }
  .header-content { gap: 8px; }

  /* Stacked card layout — applied to every table via .table-responsive-stack */
  .table-responsive-stack thead { display: none; }

  .table-responsive-stack tbody tr {
    display: block;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 10px;
    background: #fff;
    box-shadow: var(--shadow-xs);
    overflow: hidden;
  }

  .table-responsive-stack tbody tr:hover {
    background: #fff; /* no hover lift on cards */
    transform: none;
  }

  .table-responsive-stack td {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
    padding: 10px 14px;
    border-bottom: 1px solid rgba(176,120,48,.07);
    font-size: .875rem;
    min-height: 38px;
  }

  .table-responsive-stack td:last-child { border-bottom: none; }

  /* Label injected from data-label attribute */
  .table-responsive-stack td::before {
    content: attr(data-label);
    font-size: .72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--ink-muted);
    white-space: nowrap;
    flex-shrink: 0;
    padding-top: 2px;
    min-width: 80px;
  }

  /* Action cell — centred, no label */
  .table-responsive-stack td.text-center,
  .table-responsive-stack td.actions-column {
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
  }
  .table-responsive-stack td.text-center::before,
  .table-responsive-stack td.actions-column::before { display: none; }

  /* Action buttons inline on cards */
  .table-responsive-stack .action-buttons {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
  }
  .table-responsive-stack .action-buttons .btn { width: auto; }

  /* Empty state still spans full width */
  .table-responsive-stack tbody tr td[colspan] {
    display: block;
    text-align: center;
  }
  .table-responsive-stack tbody tr td[colspan]::before { display: none; }

  /* Page containers */
  .assuntos-container, .autores-container, .classificacao-container,
  .coautores-container, .editoras-container, .livros-container,
  .localizacao-container, .password-container, .users-container {
    padding: 12px 10px;
  }

  /* Modals use full viewport */
  .modal-body { padding: 16px; }
  .modal-header { padding: 14px 16px; }
  .modal-footer { padding: 12px 16px; }

  /* Buttons */
  .btn-sm { padding: 6px 10px; font-size: .8rem; }
  .btn { padding: 8px 14px; }
  .btn-login { padding: 11px; }

  /* Filter section */
  .filter-section { padding: 12px; }

  /* Page header */
  .page-header h1 { font-size: 1.25rem; }
}