/* =========================================================
   Gestor de Faturas — CSS puro, responsivo
   ========================================================= */

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

:root {
  --blue-900: #0d1f3c;
  --blue-700: #1a3a6b;
  --blue-600: #1e4d8c;
  --blue-500: #2563eb;
  --blue-400: #3b82f6;
  --blue-100: #dbeafe;
  --blue-50:  #eff6ff;

  --gray-900: #111827;
  --gray-700: #374151;
  --gray-500: #6b7280;
  --gray-300: #d1d5db;
  --gray-100: #f3f4f6;
  --gray-50:  #f9fafb;

  --green-600: #16a34a;
  --green-100: #dcfce7;
  --red-600:   #dc2626;
  --red-100:   #fee2e2;
  --yellow-600:#ca8a04;
  --yellow-100:#fef9c3;

  --white: #ffffff;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -1px rgba(0,0,0,.06);
  --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

body {
  font-family: var(--font);
  font-size: 14px;
  color: var(--gray-900);
  background: var(--gray-50);
  line-height: 1.5;
}

/* ── Layout ─────────────────────────────────────────────── */
.layout { display: flex; min-height: 100vh; }

.sidebar {
  width: 240px;
  background: var(--blue-900);
  color: var(--white);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  overflow-y: auto;
}

.sidebar-logo {
  padding: 20px 20px 16px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.sidebar-logo h1 { font-size: 15px; font-weight: 700; letter-spacing: .3px; }
.sidebar-logo p  { font-size: 11px; color: rgba(255,255,255,.5); margin-top: 2px; }

.sidebar-nav { flex: 1; padding: 12px 0; }
.nav-section  { padding: 8px 16px 4px; font-size: 10px; text-transform: uppercase;
                letter-spacing: .8px; color: rgba(255,255,255,.4); }

.nav-link {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 20px;
  color: rgba(255,255,255,.75);
  text-decoration: none;
  font-size: 13.5px;
  transition: background .15s, color .15s;
  border-left: 3px solid transparent;
}
.nav-link:hover, .nav-link.active {
  background: rgba(255,255,255,.08);
  color: var(--white);
  border-left-color: var(--blue-400);
}
.nav-link svg { width: 17px; height: 17px; flex-shrink: 0; }

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid rgba(255,255,255,.1);
  font-size: 12px;
  color: rgba(255,255,255,.5);
}
.sidebar-footer a { color: rgba(255,255,255,.6); text-decoration: none; }
.sidebar-footer a:hover { color: var(--white); }

.main-content {
  flex: 1;
  margin-left: 240px;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.topbar {
  background: var(--white);
  border-bottom: 1px solid var(--gray-300);
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
}
.topbar-title { font-size: 16px; font-weight: 600; }
.topbar-user  { font-size: 13px; color: var(--gray-500); }

.page-content { padding: 24px; flex: 1; }

/* ── Auth pages ──────────────────────────────────────────── */
.auth-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--blue-900);
}
.auth-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 40px;
  width: 100%;
  max-width: 420px;
}
.auth-card h2 { font-size: 22px; font-weight: 700; margin-bottom: 6px; color: var(--blue-700); }
.auth-card p  { color: var(--gray-500); margin-bottom: 28px; }
.auth-logo    { text-align: center; margin-bottom: 28px; }
.auth-logo span { font-size: 26px; font-weight: 800; color: var(--blue-600); }

/* ── Forms ───────────────────────────────────────────────── */
.form-group { margin-bottom: 16px; }
.form-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 5px;
  color: var(--gray-700);
}
.form-control {
  display: block;
  width: 100%;
  padding: 9px 12px;
  font-size: 14px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--gray-900);
  transition: border-color .15s, box-shadow .15s;
}
.form-control:focus {
  outline: none;
  border-color: var(--blue-400);
  box-shadow: 0 0 0 3px rgba(59,130,246,.15);
}
.form-control.is-invalid { border-color: var(--red-600); }
.invalid-feedback { color: var(--red-600); font-size: 12px; margin-top: 4px; }
.form-text { color: var(--gray-500); font-size: 12px; margin-top: 4px; }

select.form-control { cursor: pointer; }
textarea.form-control { resize: vertical; min-height: 80px; }

.form-row { display: grid; gap: 12px; }
.form-row.cols-2 { grid-template-columns: 1fr 1fr; }
.form-row.cols-3 { grid-template-columns: 1fr 1fr 1fr; }

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  font-size: 13.5px;
  font-weight: 500;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background .15s, opacity .15s;
  white-space: nowrap;
}
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-primary  { background: var(--blue-500); color: var(--white); }
.btn-primary:hover { background: var(--blue-600); color: var(--white); }
.btn-secondary{ background: var(--gray-100); color: var(--gray-700); border: 1px solid var(--gray-300); }
.btn-secondary:hover { background: var(--gray-300); }
.btn-danger   { background: var(--red-100); color: var(--red-600); border: 1px solid #fca5a5; }
.btn-danger:hover { background: var(--red-600); color: var(--white); }
.btn-success  { background: var(--green-100); color: var(--green-600); border: 1px solid #86efac; }
.btn-success:hover { background: var(--green-600); color: var(--white); }
.btn-sm       { padding: 5px 12px; font-size: 12.5px; }
.btn-block    { width: 100%; justify-content: center; }
.btn-icon     { padding: 7px; border-radius: 6px; }

/* ── Cards ───────────────────────────────────────────────── */
.card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-300);
}
.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.card-header h3 { font-size: 15px; font-weight: 600; }
.card-body { padding: 20px; }

/* ── Dashboard stats ─────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--gray-300);
  padding: 20px;
  box-shadow: var(--shadow);
}
.stat-card .stat-label { font-size: 12px; color: var(--gray-500); text-transform: uppercase;
                         letter-spacing: .5px; margin-bottom: 8px; }
.stat-card .stat-value { font-size: 26px; font-weight: 700; color: var(--blue-600); }
.stat-card .stat-sub   { font-size: 12px; color: var(--gray-500); margin-top: 4px; }

/* ── Tables ──────────────────────────────────────────────── */
.table-wrapper { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
thead th {
  background: var(--gray-50);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .4px;
  color: var(--gray-500);
  padding: 10px 14px;
  border-bottom: 1px solid var(--gray-300);
  text-align: left;
  white-space: nowrap;
}
tbody td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--gray-100);
  font-size: 13.5px;
  vertical-align: middle;
}
tbody tr:hover { background: var(--blue-50); }
tbody tr:last-child td { border-bottom: none; }

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

/* ── Badges ──────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 11.5px;
  font-weight: 500;
}
.badge-blue    { background: var(--blue-100);   color: var(--blue-600); }
.badge-green   { background: var(--green-100);  color: var(--green-600); }
.badge-red     { background: var(--red-100);    color: var(--red-600); }
.badge-yellow  { background: var(--yellow-100); color: var(--yellow-600); }
.badge-gray    { background: var(--gray-100);   color: var(--gray-500); }

/* ── Alerts ──────────────────────────────────────────────── */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 13.5px;
  margin-bottom: 16px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.alert-success { background: var(--green-100); color: var(--green-600);
                 border: 1px solid #86efac; }
.alert-error   { background: var(--red-100);   color: var(--red-600);
                 border: 1px solid #fca5a5; }
.alert-warning { background: var(--yellow-100);color: var(--yellow-600);
                 border: 1px solid #fde047; }
.alert-info    { background: var(--blue-100);  color: var(--blue-600);
                 border: 1px solid #93c5fd; }

/* ── Page header ─────────────────────────────────────────── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
.page-header h2 { font-size: 20px; font-weight: 700; }

/* ── Filters bar ─────────────────────────────────────────── */
.filters-bar {
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-bottom: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: flex-end;
}
.filters-bar .form-group { margin-bottom: 0; }
.filters-bar .form-label { font-size: 11.5px; }
.filters-bar .form-control { padding: 6px 10px; font-size: 13px; }

/* ── Revisar fatura — tabela editável ───────────────────── */
.review-table td input,
.review-table td select {
  width: 100%;
  padding: 4px 7px;
  font-size: 13px;
  border: 1px solid var(--gray-300);
  border-radius: 4px;
  background: var(--white);
}
.review-table td input:focus,
.review-table td select:focus {
  outline: none;
  border-color: var(--blue-400);
  box-shadow: 0 0 0 2px rgba(59,130,246,.12);
}
.review-summary {
  background: var(--blue-50);
  border: 1px solid var(--blue-100);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-bottom: 16px;
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}
.review-summary .sum-item { font-size: 13.5px; }
.review-summary .sum-item strong { color: var(--blue-600); }
.divergence { background: var(--yellow-100); border-color: #fde047; }
.divergence strong { color: var(--yellow-600); }

/* ── Pagination ──────────────────────────────────────────── */
.pagination {
  display: flex;
  gap: 6px;
  justify-content: center;
  margin-top: 20px;
  flex-wrap: wrap;
}
.pagination a, .pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 34px;
  padding: 0 8px;
  border-radius: 6px;
  font-size: 13px;
  text-decoration: none;
  border: 1px solid var(--gray-300);
  color: var(--gray-700);
  transition: all .15s;
}
.pagination a:hover  { background: var(--blue-50); border-color: var(--blue-400); color: var(--blue-600); }
.pagination .current { background: var(--blue-500); border-color: var(--blue-500); color: var(--white); }
.pagination .disabled{ opacity: .4; pointer-events: none; }

/* ── Upload area ─────────────────────────────────────────── */
.upload-area {
  border: 2px dashed var(--gray-300);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  cursor: pointer;
  transition: border-color .2s, background .2s;
}
.upload-area:hover, .upload-area.drag-over {
  border-color: var(--blue-400);
  background: var(--blue-50);
}
.upload-area input[type="file"] { display: none; }
.upload-area svg { width: 40px; height: 40px; color: var(--gray-300); margin-bottom: 12px; }
.upload-area p  { font-size: 14px; color: var(--gray-500); }
.upload-area .file-selected { color: var(--blue-600); font-weight: 500; }

/* ── Misc ────────────────────────────────────────────────── */
.text-right  { text-align: right; }
.text-center { text-align: center; }
.text-muted  { color: var(--gray-500); }
.text-danger { color: var(--red-600); }
.text-success{ color: var(--green-600); }
.fw-bold     { font-weight: 600; }
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.d-flex { display: flex; }
.gap-1  { gap: 8px; }
.gap-2  { gap: 16px; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }

/* ── Responsive ──────────────────────────────────────────── */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  color: var(--gray-700);
}

@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); transition: transform .25s; }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .menu-toggle  { display: block; }
  .form-row.cols-2, .form-row.cols-3 { grid-template-columns: 1fr; }
  .page-header  { flex-direction: column; align-items: flex-start; gap: 10px; }
  .stats-grid   { grid-template-columns: 1fr 1fr; }
  .filters-bar  { flex-direction: column; }
  .review-summary { flex-direction: column; gap: 8px; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .auth-card  { padding: 28px 20px; }
  .page-content { padding: 16px; }
}