/* ============================================================
   EVF Sales Dashboard — Premium Design System
   Inspired by: Tremor, Tabler, NocoDB
   Protocol: A2UI v0.9
   ============================================================ */

/* ------- RESET & FOUNDATIONS ------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Palette */
  --bg-deep: #06080f;
  --bg-base: #0a0e1a;
  --bg-card: rgba(15, 20, 40, 0.7);
  --bg-card-solid: #0f1428;
  --bg-hover: rgba(59, 130, 246, 0.08);
  --bg-glass: rgba(15, 23, 42, 0.65);
  --border: rgba(148, 163, 184, 0.10);
  --border-accent: rgba(59, 130, 246, 0.25);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #3b82f6;
  --accent-glow: rgba(59, 130, 246, 0.3);
  --emerald: #10b981;
  --emerald-bg: rgba(16, 185, 129, 0.10);
  --rose: #f43f5e;
  --rose-bg: rgba(244, 63, 94, 0.10);
  --amber: #f59e0b;
  --amber-bg: rgba(245, 158, 11, 0.10);
  --violet: #8b5cf6;

  /* Typography */
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-xs: 6px;
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

html { font-size: 14px; scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg-deep);
  color: var(--text-primary);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ------- LOADING SCREEN ------- */
.loading-screen {
  position: fixed; inset: 0; z-index: 9999;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-deep);
}
.loading-content { text-align: center; }
.loading-logo {
  position: relative; width: 80px; height: 80px; margin: 0 auto 24px;
}
.loading-ring {
  position: absolute; inset: 0; border: 3px solid var(--border);
  border-top-color: var(--accent); border-radius: 50%;
  animation: spin 1s linear infinite;
}
.loading-text {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1.3rem; color: var(--accent);
  letter-spacing: 2px;
}
.loading-subtitle { color: var(--text-secondary); margin-bottom: 16px; }
.loading-bar {
  width: 200px; height: 3px; background: var(--border); border-radius: 4px;
  overflow: hidden; margin: 0 auto;
}
.loading-bar-inner {
  height: 100%; width: 40%; background: var(--accent);
  border-radius: 4px; animation: loadSlide 1.2s ease-in-out infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes loadSlide {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(350%); }
}
.hidden { display: none !important; }

/* ------- APP SHELL ------- */
.app-shell { min-height: 100vh; animation: fadeIn 0.4s ease; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* ------- TOPBAR ------- */
.topbar {
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; gap: 16px;
  padding: 12px 24px; height: 64px;
  background: rgba(6, 8, 15, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border);
}
.topbar-left { display: flex; align-items: center; gap: 12px; }
.topbar-brand { display: flex; align-items: center; gap: 12px; }
.brand-icon {
  width: 40px; height: 40px; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--violet));
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; color: #fff;
  box-shadow: 0 4px 12px var(--accent-glow);
}
.brand-text h1 { font-size: 1.1rem; font-weight: 700; letter-spacing: -0.01em; line-height: 1.2; }
.brand-subtitle { font-size: 0.7rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }
.topbar-center { flex: 1; max-width: 480px; margin: 0 auto; }
.global-search {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 0 14px; height: 40px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.global-search:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.search-icon { color: var(--text-muted); font-size: 0.85rem; }
.global-search input {
  flex: 1; border: none; background: transparent;
  color: var(--text-primary); font-family: var(--font); font-size: 0.9rem; outline: none;
}
.global-search input::placeholder { color: var(--text-muted); }
.search-kbd {
  font-size: 0.65rem; padding: 2px 6px; border-radius: 4px;
  background: rgba(148,163,184,0.1); color: var(--text-muted);
  font-family: var(--font);
}
.topbar-right { display: flex; align-items: center; gap: 8px; }
.meta-badge {
  font-size: 0.75rem; color: var(--text-muted);
  padding: 4px 10px; border-radius: 20px;
  background: var(--bg-card); border: 1px solid var(--border);
}

/* ------- BUTTONS ------- */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 14px; border-radius: var(--radius-sm);
  font-family: var(--font); font-size: 0.85rem; font-weight: 500;
  border: 1px solid var(--border); cursor: pointer;
  transition: all var(--transition); white-space: nowrap;
}
.btn-accent {
  background: linear-gradient(135deg, var(--accent), #2563eb);
  color: #fff; border-color: transparent;
  box-shadow: 0 2px 8px var(--accent-glow);
}
.btn-accent:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px var(--accent-glow);
}
.btn-ghost { background: transparent; color: var(--text-secondary); }
.btn-ghost:hover { background: var(--bg-hover); color: var(--text-primary); }
.btn-full { width: 100%; justify-content: center; }
.btn-close {
  width: 36px; height: 36px; border-radius: 50%;
  border: none; background: rgba(148,163,184,0.1);
  color: var(--text-secondary); cursor: pointer; display: flex;
  align-items: center; justify-content: center;
  transition: all var(--transition);
}
.btn-close:hover { background: var(--rose-bg); color: var(--rose); }

/* ------- TAB NAVIGATION ------- */
.tab-nav {
  display: flex; align-items: center; gap: 0;
  padding: 0 24px; position: relative;
  background: rgba(6, 8, 15, 0.6);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.tab-btn {
  display: flex; align-items: center; gap: 8px;
  padding: 14px 20px; border: none; background: transparent;
  color: var(--text-muted); font-family: var(--font); font-size: 0.9rem;
  font-weight: 500; cursor: pointer; position: relative;
  transition: color var(--transition);
}
.tab-btn:hover { color: var(--text-secondary); }
.tab-btn.active { color: var(--accent); }
.tab-btn i { font-size: 0.85rem; }
.tab-badge {
  font-size: 0.7rem; padding: 2px 8px; border-radius: 12px;
  background: var(--bg-card); color: var(--text-muted);
}
.tab-btn.active .tab-badge { background: rgba(59,130,246,0.15); color: var(--accent); }
.tab-indicator {
  position: absolute; bottom: 0; left: 0;
  height: 2px; background: var(--accent);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 2px 2px 0 0;
  box-shadow: 0 0 8px var(--accent-glow);
}

/* ------- MAIN CONTENT ------- */
.main-content { padding: 20px 24px 40px; }
.tab-panel { display: none; animation: fadeUp 0.3s ease; }
.tab-panel.active { display: block; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* ------- KPI ROW ------- */
.kpi-row {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px; margin-bottom: 20px;
}
.kpi-card {
  background: var(--bg-glass); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px;
  backdrop-filter: blur(16px);
  transition: all var(--transition);
}
.kpi-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}
.kpi-label { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 8px; }
.kpi-value { font-size: 1.75rem; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 4px; }
.kpi-delta { font-size: 0.8rem; display: inline-flex; align-items: center; gap: 4px; padding: 2px 8px; border-radius: 6px; }
.kpi-delta.up { color: var(--emerald); background: var(--emerald-bg); }
.kpi-delta.down { color: var(--rose); background: var(--rose-bg); }

/* ------- FILTER BAR ------- */
.filter-bar {
  display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 16px;
  align-items: center;
}
.filter-bar select, .filter-bar input[type="text"] {
  padding: 8px 12px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--bg-card-solid);
  color: var(--text-primary); font-family: var(--font); font-size: 0.85rem;
  outline: none; transition: border-color var(--transition);
  min-width: 140px;
}
.filter-bar select:focus, .filter-bar input:focus {
  border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-glow);
}
.filter-bar .filter-label {
  font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase;
  letter-spacing: 0.5px;
}
.filter-bar .btn-clear {
  padding: 6px 12px; border-radius: var(--radius-xs); border: 1px solid var(--border);
  background: transparent; color: var(--text-muted); font-size: 0.8rem;
  cursor: pointer; font-family: var(--font);
  transition: all var(--transition);
}
.filter-bar .btn-clear:hover { border-color: var(--rose); color: var(--rose); }

/* ------- DATA TABLE ------- */
.data-table-wrapper {
  background: var(--bg-glass); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  backdrop-filter: blur(16px);
}
.data-table {
  width: 100%; border-collapse: collapse; font-size: 0.85rem;
}
.data-table thead {
  position: sticky; top: 0; z-index: 2;
  background: rgba(10, 14, 26, 0.95);
}
.data-table th {
  padding: 12px 14px; text-align: left; font-weight: 600;
  color: var(--text-muted); text-transform: uppercase;
  font-size: 0.7rem; letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
  cursor: pointer; white-space: nowrap; user-select: none;
  transition: color var(--transition);
}
.data-table th:hover { color: var(--accent); }
.data-table th .sort-icon { margin-left: 4px; font-size: 0.65rem; opacity: 0.4; }
.data-table th.sorted .sort-icon { opacity: 1; color: var(--accent); }
.data-table td {
  padding: 10px 14px; border-bottom: 1px solid rgba(148,163,184,0.05);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 200px;
}
.data-table tbody tr {
  transition: background var(--transition); cursor: pointer;
}
.data-table tbody tr:hover { background: var(--bg-hover); }
.data-table .cell-money { font-variant-numeric: tabular-nums; text-align: right; }
.data-table .cell-growth { font-variant-numeric: tabular-nums; text-align: right; }
.cell-positive { color: var(--emerald); }
.cell-negative { color: var(--rose); }
.cell-badge {
  display: inline-block; padding: 2px 8px; border-radius: 6px;
  font-size: 0.75rem; font-weight: 500;
}
.cell-badge-blue { background: rgba(59,130,246,0.15); color: var(--accent); }
.cell-badge-emerald { background: var(--emerald-bg); color: var(--emerald); }
.cell-badge-amber { background: var(--amber-bg); color: var(--amber); }
.cell-badge-rose { background: var(--rose-bg); color: var(--rose); }

/* ------- PAGINATION ------- */
.pagination {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 0; margin-top: 8px;
}
.pagination-info { font-size: 0.8rem; color: var(--text-muted); }
.pagination-btns { display: flex; gap: 4px; }
.pagination-btns button {
  width: 36px; height: 36px; border-radius: var(--radius-xs);
  border: 1px solid var(--border); background: transparent;
  color: var(--text-secondary); cursor: pointer; font-family: var(--font);
  font-size: 0.85rem; display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
}
.pagination-btns button:hover { background: var(--bg-hover); border-color: var(--accent); }
.pagination-btns button.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.pagination-btns button:disabled { opacity: 0.3; cursor: not-allowed; }

/* ------- MODAL OVERLAY ------- */
.modal-overlay {
  position: fixed; inset: 0; z-index: 500;
  background: rgba(0,0,0,0.6); backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  animation: fadeIn 0.2s ease;
}
.modal-container {
  background: var(--bg-base); border: 1px solid var(--border);
  border-radius: var(--radius); width: 90vw; max-width: 1100px;
  max-height: 85vh; overflow: hidden;
  box-shadow: 0 24px 64px rgba(0,0,0,0.5);
  animation: scaleIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
@keyframes scaleIn { from { transform: scale(0.95); opacity: 0; } to { transform: scale(1); opacity: 1; } }
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px; border-bottom: 1px solid var(--border);
}
.modal-header h2 { font-size: 1.1rem; font-weight: 600; display: flex; align-items: center; gap: 8px; }
.modal-header h2 i { color: var(--accent); }

/* ------- GRAPH BUILDER ------- */
.graph-builder-body {
  display: grid; grid-template-columns: 280px 1fr; height: 65vh;
}
.builder-controls {
  padding: 20px; border-right: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 16px; overflow-y: auto;
}
.control-group label {
  display: block; font-size: 0.75rem; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 6px;
}
.control-group select, .control-group input {
  width: 100%; padding: 8px 12px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--bg-card-solid);
  color: var(--text-primary); font-family: var(--font); font-size: 0.85rem;
  outline: none;
}
.control-group select:focus, .control-group input:focus {
  border-color: var(--accent);
}
.chart-type-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.chart-type-btn {
  padding: 8px; border-radius: var(--radius-xs);
  border: 1px solid var(--border); background: transparent;
  color: var(--text-muted); font-size: 0.8rem; cursor: pointer;
  font-family: var(--font); transition: all var(--transition);
  display: flex; align-items: center; gap: 4px; justify-content: center;
}
.chart-type-btn:hover { border-color: var(--accent); color: var(--text-primary); }
.chart-type-btn.active {
  background: rgba(59,130,246,0.15); border-color: var(--accent); color: var(--accent);
}
.builder-preview {
  padding: 24px; display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
}
.builder-preview canvas { width: 100% !important; height: 100% !important; }
.chart-placeholder {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  color: var(--text-muted); font-size: 0.9rem; gap: 12px;
}
.chart-placeholder i { font-size: 3rem; opacity: 0.2; }

/* ------- DETAIL DRAWER ------- */
.detail-drawer {
  position: fixed; top: 0; right: 0; bottom: 0; width: 440px; z-index: 400;
  background: var(--bg-base); border-left: 1px solid var(--border);
  box-shadow: -16px 0 48px rgba(0,0,0,0.4);
  animation: slideInRight 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
}
@keyframes slideInRight { from { transform: translateX(100%); } to { transform: translateX(0); } }
.drawer-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--border);
  position: sticky; top: 0; background: var(--bg-base); z-index: 1;
}
.drawer-header h3 { font-size: 1rem; font-weight: 600; }
.drawer-body { padding: 20px; }
.drawer-section { margin-bottom: 20px; }
.drawer-section h4 {
  font-size: 0.75rem; text-transform: uppercase; color: var(--text-muted);
  letter-spacing: 0.5px; margin-bottom: 10px;
}
.drawer-field { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px solid rgba(148,163,184,0.05); }
.drawer-field-label { color: var(--text-muted); font-size: 0.85rem; }
.drawer-field-value { font-weight: 500; font-size: 0.85rem; }
.drawer-chart-container { height: 200px; margin-top: 12px; }

/* ------- EXPORT DROPDOWN ------- */
.export-dropdown {
  position: relative;
}
.export-menu {
  position: absolute; top: calc(100% + 6px); right: 0;
  min-width: 180px; padding: 6px;
  background: var(--bg-base); border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: 0 12px 32px rgba(0,0,0,0.5);
  backdrop-filter: blur(20px);
  z-index: 200;
  animation: fadeUp 0.15s ease;
}
.export-menu button {
  display: flex; align-items: center; gap: 10px; width: 100%;
  padding: 10px 14px; border: none; background: transparent;
  color: var(--text-secondary); font-family: var(--font);
  font-size: 0.85rem; cursor: pointer; border-radius: var(--radius-xs);
  transition: all var(--transition);
}
.export-menu button:hover {
  background: var(--bg-hover); color: var(--text-primary);
}
.export-menu button i {
  width: 18px; text-align: center; font-size: 0.9rem;
}
.export-menu button[data-format="csv"] i { color: #10b981; }
.export-menu button[data-format="xlsx"] i { color: #22c55e; }
.export-menu button[data-format="json"] i { color: #3b82f6; }

/* ------- RESPONSIVE ------- */
@media (max-width: 1024px) {
  .data-table-wrapper { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .data-table { min-width: 800px; }
}

@media (max-width: 768px) {
  .topbar { padding: 8px 12px; gap: 8px; }
  .topbar-center { display: none; }
  .brand-text h1 { font-size: 0.9rem; }
  .tab-nav { padding: 0 8px; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .tab-btn span { display: none; }
  .tab-btn { padding: 12px 14px; }
  .main-content { padding: 12px; }
  .kpi-row { grid-template-columns: 1fr 1fr; gap: 10px; }
  .kpi-value { font-size: 1.3rem; }
  .graph-builder-body { grid-template-columns: 1fr; height: auto; max-height: 80vh; overflow-y: auto; }
  .builder-controls { border-right: none; border-bottom: 1px solid var(--border); }
  .builder-preview { min-height: 300px; }
  .detail-drawer { width: 100%; }
  .modal-container { width: 96vw; max-height: 90vh; }
  .data-table-wrapper { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .data-table { min-width: 700px; }
  .data-table td { max-width: 150px; }
  .filter-bar { gap: 6px; }
  .filter-bar select, .filter-bar input[type="text"] { min-width: 110px; font-size: 0.8rem; }
  .export-dropdown .btn span { display: none; }
  .export-menu { right: -8px; }
}

@media (max-width: 480px) {
  .topbar { height: 52px; padding: 6px 10px; }
  .brand-icon { width: 32px; height: 32px; font-size: 0.9rem; }
  .brand-text h1 { font-size: 0.8rem; }
  .brand-subtitle { display: none; }
  .tab-btn { padding: 10px 12px; font-size: 0.85rem; }
  .tab-badge { display: none; }
  .main-content { padding: 8px; }
  .kpi-row { grid-template-columns: 1fr; gap: 8px; }
  .kpi-card { padding: 14px; }
  .kpi-value { font-size: 1.2rem; }
  .kpi-label { font-size: 0.7rem; }
  .filter-bar { flex-direction: column; }
  .filter-bar select, .filter-bar input[type="text"] { width: 100%; min-width: unset; }
  .data-table { min-width: 600px; font-size: 0.78rem; }
  .data-table th, .data-table td { padding: 8px 10px; }
  .pagination { flex-direction: column; gap: 8px; align-items: center; }
  .graph-builder-container { max-height: 95vh; }
  .builder-controls { padding: 12px; gap: 10px; }
  .builder-preview { min-height: 220px; padding: 12px; }
  .chart-type-grid { grid-template-columns: 1fr 1fr 1fr 1fr; }
  .detail-drawer { width: 100%; }
  .drawer-header h3 { font-size: 0.9rem; }
}