/* Enterprise ERP System CSS — Responsive Corporate Aesthetics */
:root {
  --bg-app: #f1f5f9;
  --bg-sidebar: #0f172a;
  --bg-surface: #ffffff;
  --bg-subtle: #f8fafc;
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-inverse: #f8fafc;

  --border-color: #cbd5e1;
  --border-light: #e2e8f0;

  --primary: #1e3a8a;
  --primary-hover: #1d4ed8;

  --success: #047857;
  --success-bg: #ecfdf5;
  --warning: #b45309;
  --warning-bg: #fffbeb;
  --danger: #b91c1c;
  --danger-bg: #fef2f2;
  --info: #0369a1;
  --info-bg: #f0f9ff;

  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-app);
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.app-container {
  display: flex;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  position: relative;
}

/* Sidebar Styles */
.sidebar {
  width: 260px;
  background-color: var(--bg-sidebar);
  color: var(--text-inverse);
  display: flex;
  flex-direction: column;
  border-right: 1px solid #1e293b;
  flex-shrink: 0;
  transition: transform 0.25s ease, width 0.25s ease;
  z-index: 50;
}

.sidebar.collapsed {
  transform: translateX(-260px);
  position: absolute;
  height: 100%;
}

.brand {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 18px;
  border-bottom: 1px solid #1e293b;
}

.brand-logo {
  background-color: #2563eb;
  color: #ffffff;
  font-weight: 700;
  font-size: 14px;
  padding: 6px 10px;
  border-radius: 4px;
  letter-spacing: 1px;
}

.brand-info {
  display: flex;
  flex-direction: column;
  flex: 1;
  margin-left: 12px;
}

.brand-name {
  font-weight: 600;
  font-size: 15px;
  color: #ffffff;
}

.brand-sub {
  font-size: 11px;
  color: #94a3b8;
}

.sidebar-close-btn {
  display: none;
  color: #94a3b8;
  font-size: 22px;
}

.nav-menu {
  flex: 1;
  overflow-y: auto;
  padding: 16px 12px;
}

.nav-section {
  font-size: 10px;
  font-weight: 700;
  color: #64748b;
  letter-spacing: 0.5px;
  margin: 16px 8px 8px 8px;
}

.nav-section:first-child {
  margin-top: 0;
}

.nav-item {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  background: transparent;
  border: none;
  color: #cbd5e1;
  font-size: 13px;
  font-weight: 500;
  border-radius: 4px;
  cursor: pointer;
  text-align: left;
  margin-bottom: 2px;
}

.nav-item:hover {
  background-color: #1e293b;
  color: #ffffff;
}

.nav-item.active {
  background-color: #2563eb;
  color: #ffffff;
  font-weight: 600;
}

.nav-item.nav-ai {
  background-color: #1e1b4b;
  color: #c084fc;
  border: 1px solid #312e81;
}

.nav-item.nav-ai:hover {
  background-color: #312e81;
  color: #ffffff;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid #1e293b;
  display: flex;
  align-items: center;
  gap: 12px;
  background-color: #0b1324;
}

.user-avatar {
  width: 34px;
  height: 34px;
  background-color: #3b82f6;
  color: #ffffff;
  font-weight: 600;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
}

.user-details {
  display: flex;
  flex-direction: column;
}

.user-name {
  font-weight: 600;
  font-size: 13px;
  color: #ffffff;
}

.user-role {
  font-size: 11px;
  color: #94a3b8;
}

.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.6);
  z-index: 40;
}

.sidebar-backdrop.active {
  display: block;
}

/* Main Area */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.topbar {
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-light);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.btn-menu-toggle {
  font-size: 20px;
  color: var(--text-primary);
  padding: 4px 8px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background-color: var(--bg-subtle);
}

.topbar-left h1 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

.subtitle {
  font-size: 12px;
  color: var(--text-muted);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.system-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  background-color: var(--bg-subtle);
  padding: 6px 10px;
  border: 1px solid var(--border-light);
  border-radius: 4px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #94a3b8;
}

.status-dot.online {
  background-color: #10b981;
}

.content-viewport {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
}

/* Buttons & Controls */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  border-radius: 4px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
}

.btn-primary {
  background-color: #1e3a8a;
  color: #ffffff;
}

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

.btn-secondary {
  background-color: var(--bg-surface);
  border-color: var(--border-color);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background-color: var(--bg-subtle);
}

.btn-icon {
  background: transparent;
  border: none;
  cursor: pointer;
}

/* Data Cards & Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}

.kpi-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 16px;
}

.kpi-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}

.kpi-value {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
}

.kpi-subtext {
  font-size: 11px;
  color: var(--text-secondary);
  margin-top: 4px;
}

.panel {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  margin-bottom: 20px;
}

.panel-header {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--bg-subtle);
}

.panel-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.panel-body {
  padding: 16px;
}

/* Enterprise Data Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 13px;
  min-width: 600px;
}

.table th {
  background-color: var(--bg-subtle);
  color: var(--text-secondary);
  font-weight: 600;
  padding: 10px 12px;
  border-bottom: 2px solid var(--border-color);
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.5px;
}

.table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-primary);
}

.table tbody tr:hover {
  background-color: #f8fafc;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 2px 8px;
  font-size: 10px;
  font-weight: 600;
  border-radius: 3px;
  text-transform: uppercase;
}

.badge-success { background-color: var(--success-bg); color: var(--success); border: 1px solid #a7f3d0; }
.badge-warning { background-color: var(--warning-bg); color: var(--warning); border: 1px solid #fde68a; }
.badge-danger { background-color: var(--danger-bg); color: var(--danger); border: 1px solid #fca5a5; }
.badge-info { background-color: var(--info-bg); color: var(--info); border: 1px solid #7dd3fc; }

/* AI Drawer */
.ai-drawer {
  width: 380px;
  background-color: var(--bg-surface);
  border-left: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  transition: right 0.25s ease;
  z-index: 60;
}

.ai-drawer.hidden {
  display: none;
}

.ai-drawer-header {
  padding: 16px 20px;
  background-color: #1e1b4b;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ai-title {
  display: flex;
  flex-direction: column;
  font-weight: 600;
  font-size: 14px;
}

.model-tag {
  font-size: 10px;
  color: #a78bfa;
}

.ai-drawer-tabs {
  display: flex;
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-subtle);
}

.ai-tab {
  flex: 1;
  padding: 10px;
  border: none;
  background: transparent;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
}

.ai-tab.active {
  color: #4338ca;
  font-weight: 600;
  border-bottom-color: #4338ca;
  background-color: var(--bg-surface);
}

.ai-drawer-body {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
}

.ai-tab-content { display: none; }
.ai-tab-content.active { display: block; }

.chat-messages {
  height: calc(100vh - 220px);
  max-height: 520px;
  min-height: 320px;
  overflow-y: auto;
  scroll-behavior: smooth;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  padding: 12px;
  padding-bottom: 30px;
  background-color: var(--bg-subtle);
  margin-bottom: 12px;
}

.message {
  margin-bottom: 14px;
  padding: 12px 14px;
  border-radius: 6px;
  font-size: 13px;
  line-height: 1.5;
  word-break: break-word;
}

.message.system {
  background-color: #e0e7ff;
  color: #3730a3;
  border: 1px solid #c7d2fe;
}

.message.user {
  background-color: #1e293b;
  color: #ffffff;
  margin-left: 24px;
  border-bottom-right-radius: 1px;
}

.message.assistant {
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  color: #0f172a;
  margin-right: 24px;
  border-bottom-left-radius: 1px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.message.assistant p {
  margin-top: 4px;
  margin-bottom: 0;
  white-space: pre-wrap;
  word-break: break-word;
}

/* Typewriter Effect Cursor */
.message.assistant p.typing::after {
  content: '▋';
  display: inline-block;
  margin-left: 3px;
  color: #2563eb;
  font-weight: bold;
  animation: typewriterBlink 0.6s infinite;
}

@keyframes typewriterBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* Mini Table inside AI Assistant message */
.erp-mini-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 8px;
  margin-bottom: 8px;
  font-size: 11px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.erp-mini-table th {
  background-color: #f1f5f9;
  color: #1e293b;
  font-weight: 600;
  text-align: left;
  padding: 6px 10px;
  border: 1px solid #cbd5e1;
}

.erp-mini-table td {
  padding: 6px 10px;
  border: 1px solid #e2e8f0;
  background-color: #ffffff;
  color: #0f172a;
}

.chat-input-area {
  display: flex;
  gap: 8px;
}

.chat-input-area input {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 13px;
}

.form-group {
  margin-bottom: 12px;
}

.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text-secondary);
}

textarea, input[type="text"], input[type="number"], select {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-family: inherit;
  font-size: 12px;
  background-color: #ffffff;
}

.ocr-result-box, .report-result-box {
  margin-top: 16px;
  padding: 12px;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 12px;
}

.ocr-result-box pre {
  font-family: var(--font-mono);
  font-size: 11px;
  white-space: pre-wrap;
  word-break: break-all;
}

/* Modal Popup Overlay */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 16px;
}

.modal-overlay.hidden { display: none; }

.modal-box {
  background-color: #ffffff;
  border-radius: 4px;
  border: 1px solid var(--border-color);
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}

.modal-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--bg-subtle);
}

.modal-header h3 {
  font-size: 15px;
  font-weight: 600;
}

.modal-body {
  padding: 18px;
  overflow-y: auto;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 16px;
}

.w-full { width: 100%; }

/* =================================================== */
/* RESPONSIVE MEDIA QUERIES (TABLET & MOBILE)           */
/* =================================================== */

@media (max-width: 1024px) {
  .kpi-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .ai-drawer {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    box-shadow: -4px 0 16px rgba(0, 0, 0, 0.15);
  }
}

@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    transform: translateX(-100%);
    box-shadow: 4px 0 16px rgba(0, 0, 0, 0.2);
  }

  .sidebar.active {
    transform: translateX(0);
  }

  .sidebar-close-btn {
    display: block;
  }

  .topbar {
    padding: 12px 14px;
  }

  .topbar-left h1 {
    font-size: 15px;
  }

  .subtitle {
    display: none;
  }

  .system-status {
    display: none;
  }

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

  .content-viewport {
    padding: 14px;
  }

  .ai-drawer {
    width: 100vw;
  }
}