:root {
  /* Cores Base (Light Mode Premium) */
  --bg: #f8fafc; /* Slate 50 */
  --surface: #ffffff;
  --surface-hover: #f1f5f9; /* Slate 100 */
  --border: #e2e8f0; /* Slate 200 */
  
  /* Cores de Acento */
  --accent: #6366f1; /* Indigo */
  --accent-light: #818cf8;
  --accent-gradient: linear-gradient(135deg, #6366f1, #3b82f6);
  
  /* Feedback Semântico */
  --danger: #ef4444;
  --danger-light: rgba(239, 68, 68, 0.08);
  --warning: #f59e0b;
  --warning-light: rgba(245, 158, 11, 0.08);
  --ok: #10b981;
  --ok-light: rgba(16, 185, 129, 0.08);
  
  /* Tipografia */
  --text-primary: #0f172a; /* Slate 900 */
  --text-secondary: #475569; /* Slate 600 */
  --text-tertiary: #94a3b8; /* Slate 400 */
  
  /* Estrutura */
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.05), 0 1px 2px 0 rgba(0, 0, 0, 0.03);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.02);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.04), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
}

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

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg);
  background-image: 
    radial-gradient(circle at 15% 50%, rgba(99, 102, 241, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 85% 30%, rgba(59, 130, 246, 0.03) 0%, transparent 50%);
  color: var(--text-primary);
  min-height: 100vh;
  padding: 2rem;
  line-height: 1.5;
}

/* ── Typography & Globals ── */
h1, h2, h3 { font-weight: 600; letter-spacing: -0.02em; }

/* ── Header ── */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.logo { display: flex; align-items: center; gap: 1rem; }
.logo-icon {
  width: 54px; height: 54px;
  border-radius: var(--radius-md);
  background: var(--accent-gradient);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem;
  box-shadow: 0 8px 16px rgba(99, 102, 241, 0.2);
}

h1 { font-size: 1.75rem; font-weight: 700; color: var(--text-primary); }
.subtitle { color: var(--text-secondary); font-size: 0.95rem; margin-top: 4px; }

.header-actions { display: flex; flex-direction: column; align-items: flex-end; gap: 0.5rem; }
.meta { color: var(--text-secondary); font-size: 0.85rem; text-align: right; line-height: 1.4; }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: var(--surface);
  color: var(--text-primary);
  border: 1px solid var(--border);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem; font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: 'Inter', sans-serif;
  box-shadow: var(--shadow-sm);
}
.btn:hover { background: var(--surface-hover); border-color: var(--text-tertiary); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--accent); color: white; border: none; }
.btn-primary:hover { background: var(--accent-light); box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25); border-color: transparent;}

/* ── Controls (Search & Sort) ── */
.controls {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.search-box, .sort-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.6rem 1rem;
  display: flex; align-items: center; gap: 0.75rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  flex: 1;
  min-width: 250px;
  box-shadow: var(--shadow-sm);
}
.search-box:focus-within, .sort-box:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}
.search-box input, .sort-box select {
  background: transparent; border: none; color: var(--text-primary);
  font-size: 0.95rem; width: 100%; outline: none; font-family: inherit;
}
.search-box input::placeholder { color: var(--text-tertiary); }
.search-box svg { color: var(--text-tertiary); flex-shrink: 0; }
.sort-box select option { background: var(--surface); color: var(--text-primary); }

/* ── Filter Bar & Category Tabs ── */
.filter-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1rem 1.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.category-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tab-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 0.45rem 1rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
}

.tab-btn:hover {
  background: var(--surface-hover);
  border-color: var(--accent-light);
  color: var(--accent);
}

.tab-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 4px 10px rgba(99, 102, 241, 0.2);
}

/* ── Checkbox Container ── */
.checkbox-filter {
  display: flex;
  align-items: center;
}

.checkbox-container {
  display: flex;
  align-items: center;
  position: relative;
  padding-left: 28px;
  cursor: pointer;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  user-select: none;
}

.checkbox-container input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  height: 0; width: 0;
}

.checkmark {
  position: absolute;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
  height: 18px;
  width: 18px;
  background-color: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 4px;
  transition: all 0.2s ease;
}

.checkbox-container:hover input ~ .checkmark {
  border-color: var(--accent-light);
}

.checkbox-container input:checked ~ .checkmark {
  background-color: var(--accent);
  border-color: var(--accent);
}

.checkmark:after {
  content: "";
  position: absolute;
  display: none;
}

.checkbox-container input:checked ~ .checkmark:after {
  display: block;
}

.checkbox-container .checkmark:after {
  left: 5px;
  top: 2px;
  width: 5px;
  height: 9px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

/* ── States (Loading / Error) ── */
.state-container {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 5rem 2rem; text-align: center;
  background: var(--surface); border-radius: var(--radius-lg); border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
}
.state-container h2 { margin-bottom: 0.5rem; margin-top: 1.5rem; color: var(--text-primary); }
.state-container p { color: var(--text-secondary); max-width: 400px; margin-bottom: 1.5rem; }

.spinner {
  width: 48px; height: 48px;
  border: 4px solid rgba(99, 102, 241, 0.1);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.error-icon { font-size: 3rem; }

/* ── Utility ── */
.hidden { display: none !important; }
.fade-in { animation: fadeIn 0.4s ease forwards; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* ── Summary Cards ── */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.3s ease, border-color 0.3s ease;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: var(--border); }
.card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
}
.card-total::before  { background: var(--accent-gradient); }
.card-alerta::before { background: var(--danger); }
.card-ok::before     { background: var(--ok); }
.card-compra::before { background: var(--warning); }

.card-num {
  font-size: 2.5rem; font-weight: 700; letter-spacing: -0.03em;
  line-height: 1; margin-bottom: 0.5rem;
}
.card-total .card-num  { color: var(--text-primary); }
.card-alerta .card-num { color: var(--danger); }
.card-ok .card-num     { color: var(--ok); }
.card-compra .card-num { color: var(--warning); }
.card-label { color: var(--text-secondary); font-size: 0.9rem; font-weight: 500; }

/* Cards clicáveis */
.card-alerta, .card-ok, .card-compra {
  cursor: pointer;
  user-select: none;
}
.card-alerta:hover, .card-ok:hover, .card-compra:hover {
  transform: translateY(-6px);
}
.card-active {
  border-color: var(--accent) !important;
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2), var(--shadow-md) !important;
}
.card-active::after {
  content: '✓ Filtro ativo';
  position: absolute;
  bottom: 10px; right: 14px;
  font-size: 0.7rem; color: var(--accent);
  font-weight: 600; letter-spacing: 0.04em;
}

/* ── Seção de Filtro Ativo ── */
.filter-label {
  background: var(--surface);
  border: 1px solid var(--accent);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.1), var(--shadow-md);
  margin-bottom: 2rem;
  animation: fadeIn 0.3s ease;
}
.filter-label-header {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: rgba(99, 102, 241, 0.04);
  flex-wrap: wrap;
}
.filter-label-header span:first-child {
  font-weight: 700; font-size: 1rem; color: var(--text-primary);
}
.filter-badge {
  background: var(--accent); color: #fff;
  border-radius: 20px; padding: 0.2rem 0.75rem;
  font-size: 0.78rem; font-weight: 600;
}
.btn-clear {
  margin-left: auto;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  padding: 0.35rem 0.9rem;
  font-size: 0.82rem; font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}
.btn-clear:hover { border-color: var(--danger); color: var(--danger); background: var(--danger-light); }

/* ── SKU Tag ── */
.sku-tag {
  display: inline-block;
  background: rgba(99, 102, 241, 0.08);
  border: 1px solid rgba(99, 102, 241, 0.15);
  color: var(--accent);
  border-radius: 6px;
  padding: 0.2rem 0.6rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

/* ── Alert row highlight ── */
tr.row-alert td {
  background: rgba(239, 68, 68, 0.02);
}
tr.row-alert:hover td {
  background: rgba(239, 68, 68, 0.05);
}

/* ── Table Section ── */
.section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.section-header {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: rgba(0,0,0,0.01);
}
.section-dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-danger { background: var(--danger); box-shadow: 0 0 10px rgba(239, 68, 68, 0.4); }
.dot-ok     { background: var(--ok);     box-shadow: 0 0 10px rgba(16, 185, 129, 0.4); }
.dot-mixed  { background: var(--accent); box-shadow: 0 0 10px rgba(99, 102, 241, 0.4); }

.section-title { font-weight: 600; font-size: 1.05rem; color: var(--text-primary); }
.section-count { margin-left: auto; color: var(--text-secondary); font-size: 0.85rem; font-weight: 500; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: separate; border-spacing: 0; }
th {
  padding: 1rem 1.5rem;
  text-align: left;
  font-size: 0.75rem; font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
td {
  padding: 1.2rem 1.5rem;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
  color: var(--text-secondary);
  transition: background-color 0.2s;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--surface-hover); }

/* Table specific styling */
.td-nome { font-weight: 500; color: var(--text-primary); max-width: 320px; line-height: 1.4; }
.td-unidade { color: var(--text-secondary); font-size: 0.8rem; }

/* Badges */
.badge {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0.35rem 0.85rem;
  border-radius: 20px;
  font-size: 0.75rem; font-weight: 600;
  letter-spacing: 0.03em;
  white-space: nowrap;
}
.badge-danger { background: var(--danger-light); color: var(--danger); border: 1px solid rgba(239,68,68,0.15); }
.badge-ok     { background: var(--ok-light); color: var(--ok); border: 1px solid rgba(16,185,129,0.15); }

/* Progress Bar (Cobertura) */
.barra-wrap { 
  background: var(--border); 
  border-radius: 6px; 
  height: 8px; 
  width: 140px; 
  margin-bottom: 6px; 
  overflow: hidden;
}
.barra { 
  height: 100%; 
  border-radius: 6px; 
  transition: width 1s cubic-bezier(0.175, 0.885, 0.32, 1.275); 
}
.barra-danger { background: var(--danger); }
.barra-ok     { background: var(--ok); }

/* Sugestão Compra Text */
.sugestao { display: block; margin-top: 0.5rem; font-size: 0.8rem; color: var(--warning); font-weight: 600; }
.sugestao strong { color: var(--text-primary); }

/* ── Footer ── */
footer { margin-top: 3rem; text-align: center; color: var(--text-tertiary); font-size: 0.85rem; }
footer a { text-decoration: none; transition: color 0.2s; }
footer a:hover { color: var(--accent) !important; text-decoration: underline; }

/* ── Empty State Table ── */
.empty-table { padding: 3rem 1.5rem; text-align: center; color: var(--text-secondary); }

/* ── Upload Section (Automação Web) ── */
.upload-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-sm);
}
.upload-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.upload-title-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.upload-title {
  font-size: 1.1rem;
  color: var(--text-primary);
}
.btn-clear-toggle {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--accent);
  border-radius: var(--radius-sm);
  padding: 0.35rem 0.9rem;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}
.btn-clear-toggle:hover {
  border-color: var(--accent);
  background: rgba(99, 102, 241, 0.04);
}
.instructions-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
  animation: fadeIn 0.3s ease;
}
.instructions-list {
  padding-left: 1.25rem;
  color: var(--text-secondary);
  font-size: 0.88rem;
}
.instructions-list li {
  margin-bottom: 0.5rem;
}
.instructions-list li:last-child {
  margin-bottom: 0;
}
.drop-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius-md);
  padding: 2.25rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
  background: var(--bg);
  position: relative;
}
.drop-zone:hover, .drop-zone.drag-over {
  border-color: var(--accent);
  background: rgba(99, 102, 241, 0.02);
}
.drop-icon {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}
.drop-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
}
.browse-link {
  color: var(--accent);
  font-weight: 600;
  text-decoration: underline;
}
.upload-status {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 0.75rem;
  font-size: 0.9rem;
  font-weight: 500;
  animation: fadeIn 0.2s ease;
}
.upload-spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(99, 102, 241, 0.1);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

/* ── Info Banner ── */
.info-banner {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.4;
}
.info-banner-icon {
  font-size: 1.25rem;
  flex-shrink: 0;
}
.info-banner strong {
  color: var(--text-primary);
}

/* ── Responsive ── */
@media(max-width: 768px) {
  body { padding: 1rem; }
  .controls { flex-direction: column; gap: 0.75rem; }
  header { flex-direction: column; align-items: flex-start; }
  .header-actions { align-items: flex-start; width: 100%; margin-top: 0.5rem; }
  .card { padding: 1.25rem; }
  .upload-header { flex-direction: column; align-items: flex-start; }
  .btn-clear-toggle { width: 100%; text-align: center; }
  .filter-bar { flex-direction: column; align-items: stretch; }
  .checkbox-filter { margin-top: 0.5rem; }
}

/* ── Print Media Optimization ── */
@media print {
  @page {
    size: A4 portrait;
    margin: 12mm 10mm 12mm 10mm;
  }
  
  html, body {
    width: 100% !important;
    max-width: 100% !important;
    overflow: visible !important;
    font-size: 11px !important;
    background: white !important;
    background-image: none !important;
    color: black !important;
    padding: 0 !important;
  }
  
  /* Hide interactive elements, controls, and buttons */
  footer,
  .controls,
  .filter-bar,
  .upload-section,
  .header-buttons,
  #copy-summary-section,
  #btn-clear-filter,
  .browse-link {
    display: none !important;
  }
  
  /* Layout modifications for print */
  header {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    margin-bottom: 1.5rem !important;
    border-bottom: 2px solid #cbd5e1 !important;
    padding-bottom: 0.75rem !important;
  }
  
  /* Keep meta info but hide reload buttons */
  .header-actions {
    display: flex !important;
    flex-direction: column !important;
    align-items: flex-end !important;
  }
  
  .meta {
    text-align: right !important;
    color: #475569 !important;
  }
  
  /* Preserve background colors and colors on printing */
  * {
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
  }
  
  /* Card optimization */
  .cards {
    gap: 0.75rem !important;
    margin-bottom: 1.5rem !important;
  }
  
  .card {
    box-shadow: none !important;
    border: 1px solid #cbd5e1 !important;
    background: white !important;
    padding: 1rem !important;
    page-break-inside: avoid;
    break-inside: avoid;
  }
  
  .card-num {
    font-size: 1.75rem !important;
  }
  
  /* Table container optimization */
  .dashboard-container, main, .table-responsive, .table-wrap, .section, .filter-label {
    width: 100% !important;
    max-width: 100% !important;
    overflow: visible !important;
    display: block !important;
    box-shadow: none !important;
    border: 1px solid #cbd5e1 !important;
    background: white !important;
  }
  
  table {
    width: 100% !important;
    max-width: 100% !important;
    border-collapse: collapse !important;
    table-layout: fixed !important;
    word-wrap: break-word !important;
  }
  
  th {
    border-bottom: 2px solid #cbd5e1 !important;
    background-color: #f1f5f9 !important;
    color: #0f172a !important;
    padding: 0.5rem !important;
    font-size: 9px !important;
    font-weight: 700 !important;
    text-transform: uppercase !important;
  }
  
  td {
    border-bottom: 1px solid #cbd5e1 !important;
    background-color: transparent !important;
    padding: 0.5rem !important;
    font-size: 9.5px !important;
    vertical-align: middle !important;
    word-wrap: break-word !important;
    white-space: normal !important;
  }
  
  /* Strict Column Widths to Prevent Cuts */
  th:nth-child(1), td:nth-child(1) { width: 10% !important; } /* SKU */
  th:nth-child(2), td:nth-child(2) { width: 40% !important; text-align: left !important; } /* Produto */
  th:nth-child(3), td:nth-child(3) { width: 12% !important; } /* Saldo Atual */
  th:nth-child(4), td:nth-child(4) { width: 13% !important; } /* Consumo (Ctrim) */
  th:nth-child(5), td:nth-child(5) { width: 10% !important; } /* Cobertura (Meses) */
  th:nth-child(6), td:nth-child(6) { width: 15% !important; } /* Status / Ação */
  
  tr {
    page-break-inside: avoid !important;
    break-inside: avoid !important;
  }
  
  .td-nome {
    max-width: none !important;
    line-height: 1.3 !important;
  }
  
  /* Progress Bar (Cobertura) print sizing */
  .barra-wrap {
    width: 60px !important;
    height: 6px !important;
    margin-bottom: 3px !important;
    background: #e2e8f0 !important;
  }
  
  /* Ensure status badges print correctly */
  .badge {
    border: 1px solid rgba(0,0,0,0.1) !important;
    padding: 0.2rem 0.5rem !important;
    font-size: 8px !important;
  }
  
  .badge-danger {
    background-color: #fee2e2 !important;
    color: #991b1b !important;
  }
  
  .badge-ok {
    background-color: #d1fae5 !important;
    color: #065f46 !important;
  }
  
  .sku-tag {
    background: #f1f5f9 !important;
    border: 1px solid #cbd5e1 !important;
    color: #334155 !important;
    font-size: 8px !important;
    padding: 0.1rem 0.4rem !important;
  }
  
  .sugestao {
    margin-top: 0.25rem !important;
    font-size: 8px !important;
  }
}