/* ==========================================================================
   CENTRAL MOTOR MONITORING - INDUSTRIAL MOTOR MAINTENANCE & DIAGNOSTIC PORTAL
   Theme: Industrial Steel Blue & Slate (Dark / Light)
   Features: Dedicated Login Page, User Management RBAC, HT/LT Dual Inventory
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

:root {
  /* Color System - Industrial Steel Dark Theme (Default) */
  --bg-body: #0b0f19;
  --bg-sidebar: #060911;
  --bg-card: #131b2e;
  --bg-card-hover: #1e293b;
  --bg-input: #0f172a;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-active: #0284c7;

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --primary: #0284c7;
  --primary-hover: #0369a1;
  --primary-bg: rgba(2, 132, 199, 0.15);

  --status-done: #10b981;
  --status-done-bg: rgba(16, 185, 129, 0.12);
  --status-done-border: rgba(16, 185, 129, 0.3);

  --status-due: #f59e0b;
  --status-due-bg: rgba(245, 158, 11, 0.12);
  --status-due-border: rgba(245, 158, 11, 0.3);

  --status-critical: #f43f5e;
  --status-critical-bg: rgba(244, 63, 94, 0.15);
  --status-critical-border: rgba(244, 63, 94, 0.4);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --font-sans: 'Plus Jakarta Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme Overrides */
[data-theme="light"] {
  --bg-body: #f1f5f9;
  --bg-sidebar: #0f172a;
  --bg-card: #ffffff;
  --bg-card-hover: #f8fafc;
  --bg-input: #f1f5f9;
  --border-color: rgba(0, 0, 0, 0.08);

  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #94a3b8;

  --status-done-bg: rgba(16, 185, 129, 0.1);
  --status-due-bg: rgba(245, 158, 11, 0.1);
  --status-critical-bg: rgba(244, 63, 94, 0.1);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Dedicated Login Page Overlay */
.login-screen {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(circle at top right, #1e293b, #0b0f19 80%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  padding: 20px;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}

.login-screen.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.login-card {
  background: rgba(19, 27, 46, 0.85);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 440px;
  padding: 36px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
  text-align: center;
}

.login-logo {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #0284c7, #2563eb);
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 32px;
  margin-bottom: 16px;
  box-shadow: 0 8px 24px rgba(2, 132, 199, 0.4);
}

.login-card h2 {
  font-size: 22px;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.5px;
  text-transform: uppercase;
}

.login-card p {
  font-size: 13px;
  color: #94a3b8;
  margin-bottom: 24px;
}

.quick-roles {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  background: rgba(15, 23, 42, 0.6);
  padding: 6px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.quick-role-btn {
  flex: 1;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 700;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
}

.quick-role-btn.active {
  background: var(--primary-bg);
  color: var(--primary);
  border-color: var(--primary);
}

/* App Shell Layout */
.app-shell {
  display: flex;
  min-height: 100vh;
}

.app-shell.hidden {
  display: none !important;
}

/* Sidebar Styling */
.sidebar {
  width: 270px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; bottom: 0; left: 0;
  z-index: 100;
  transition: var(--transition);
}

.sidebar-header {
  padding: 22px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-logo {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, #0284c7, #2563eb);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 24px;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.4);
}

.sidebar-brand h2 {
  font-size: 17px;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.4px;
  text-transform: uppercase;
  background: linear-gradient(135deg, #ffffff 40%, #0284c7);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.sidebar-brand p {
  font-size: 11px;
  color: #94a3b8;
  font-weight: 600;
}

.sidebar-menu {
  padding: 20px 12px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
}

.menu-label {
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  color: #64748b;
  letter-spacing: 1px;
  padding: 10px 12px 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  color: #94a3b8;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.05);
  color: #f8fafc;
}

.nav-item.active {
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.35);
}

.nav-item i {
  font-size: 18px;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border-color);
  font-size: 11px;
  color: #64748b;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Main Content Area */
.main-content {
  margin-left: 270px;
  flex: 1;
  padding: 24px 32px 60px;
  min-width: 0;
}

/* Top Header */
.content-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 16px;
}

.page-title h1 {
  font-size: 24px;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.5px;
}

.page-title p {
  font-size: 13px;
  color: var(--text-muted);
}

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

/* User Profile Badge */
.user-profile-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 5px 12px;
  border-radius: var(--radius-full);
}

.user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 800;
}

.user-details {
  display: flex;
  flex-direction: column;
  text-align: left;
}
.user-name { font-size: 12px; font-weight: 700; color: var(--text-main); line-height: 1.2; }
.user-role-label { font-size: 10px; font-weight: 600; color: var(--text-muted); }

/* User Role RBAC Badge */
.rbac-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 700;
}
.rbac-badge.admin { background: rgba(16, 185, 129, 0.15); color: var(--status-done); border: 1px solid var(--status-done-border); }
.rbac-badge.viewer { background: rgba(2, 132, 199, 0.15); color: var(--primary); border: 1px solid rgba(2, 132, 199, 0.3); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}

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

.btn-secondary { background: var(--bg-card); border: 1px solid var(--border-color); color: var(--text-main); }
.btn-secondary:hover { background: var(--bg-card-hover); border-color: var(--primary); }

.btn-success { background: #059669; color: #fff; }
.btn-success:hover { background: #047857; }

.btn-danger { background: #e11d48; color: #fff; }
.btn-danger:hover { background: #be123c; }

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

.theme-btn {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  cursor: pointer;
}

/* Tab Panels */
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* KPI Grid - Clickable Cards */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.kpi-card:hover {
  transform: translateY(-3px);
  border-color: var(--primary);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.kpi-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px; height: 100%;
  background: var(--primary);
}

.kpi-card.kpi-done::before { background: var(--status-done); }
.kpi-card.kpi-due::before { background: var(--status-due); }
.kpi-card.kpi-critical::before { background: var(--status-critical); }
.kpi-card.kpi-purple::before { background: #8b5cf6; }

.kpi-info span {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.kpi-info h3 {
  font-size: 26px;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--text-main);
  margin-top: 2px;
}

.kpi-sub-tag {
  font-size: 11px;
  font-weight: 700;
  margin-top: 4px;
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-full);
}
.kpi-sub-tag.done { background: var(--status-done-bg); color: var(--status-done); }
.kpi-sub-tag.due { background: var(--status-due-bg); color: var(--status-due); }
.kpi-sub-tag.critical { background: var(--status-critical-bg); color: var(--status-critical); animation: pulse-crit 1.5s infinite; }

@keyframes pulse-crit {
  0% { opacity: 1; }
  50% { opacity: 0.5; }
  100% { opacity: 1; }
}

.kpi-icon-box {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: var(--primary-bg);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.kpi-card.kpi-done .kpi-icon-box { background: rgba(16, 185, 129, 0.15); color: var(--status-done); }
.kpi-card.kpi-due .kpi-icon-box { background: rgba(245, 158, 11, 0.15); color: var(--status-due); }
.kpi-card.kpi-critical .kpi-icon-box { background: rgba(244, 63, 94, 0.15); color: var(--status-critical); }
.kpi-card.kpi-purple .kpi-icon-box { background: rgba(139, 92, 246, 0.15); color: #8b5cf6; }

/* Charts Layout */
.charts-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 20px;
  margin-bottom: 28px;
}

@media (max-width: 1024px) {
  .charts-grid { grid-template-columns: 1fr; }
}

.chart-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
}

.chart-card h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.chart-box {
  position: relative;
  height: 290px;
  width: 100%;
}

/* Industrial Data Tables */
.section-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 28px;
}

.controls-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
  background: var(--bg-body);
  padding: 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.search-input {
  padding: 8px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 13px;
  min-width: 220px;
}

.filter-select {
  padding: 8px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 13px;
}

.table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
}

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

.data-table th {
  background: var(--bg-sidebar);
  color: var(--text-muted);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 11px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
  cursor: pointer;
}

.data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.data-table tbody tr:hover {
  background: var(--bg-card-hover);
}

.font-mono {
  font-family: var(--font-mono);
  font-weight: 600;
}

/* Status Pill */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 700;
}

.status-badge.done { background: var(--status-done-bg); color: var(--status-done); border: 1px solid var(--status-done-border); }
.status-badge.due { background: var(--status-due-bg); color: var(--status-due); border: 1px solid var(--status-due-border); }
.status-badge.critical { background: var(--status-critical-bg); color: var(--status-critical); border: 1px solid var(--status-critical-border); }

/* Form Group Grid */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-align: left;
}

.form-group label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
}

.form-control {
  padding: 10px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 13px;
  font-family: var(--font-sans);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
}

/* Modals */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  padding: 20px;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 800px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 40px rgba(0,0,0,0.6);
}

.modal-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-body { padding: 24px; }
.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* Printable Tag */
.qr-sticker-tag {
  background: #ffffff;
  color: #0f172a;
  padding: 20px;
  border-radius: var(--radius-md);
  border: 2px dashed #cbd5e1;
  text-align: center;
  max-width: 340px;
  margin: 0 auto;
}

/* Certificate PDF Template */
.pdf-certificate-template {
  background: #ffffff;
  color: #0f172a;
  padding: 36px;
  font-family: 'Plus Jakarta Sans', sans-serif;
  max-width: 800px;
  margin: 0 auto;
}

/* ==========================================================================
   Responsive Design (Mobile & Tablet)
   ========================================================================== */

@media screen and (max-width: 1024px) {
  .sidebar { width: 220px; }
  .main-content { margin-left: 220px; padding: 20px; }
  .kpi-grid { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
  .charts-grid { grid-template-columns: 1fr; }
}

@media screen and (max-width: 768px) {
  .app-shell { flex-direction: column; }
  
  /* Top Navigation for Mobile */
  .sidebar {
    position: relative;
    width: 100%;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }
  
  .sidebar-header {
    padding: 12px 16px;
    justify-content: space-between;
  }
  
  .sidebar-menu {
    flex-direction: row;
    overflow-x: auto;
    padding: 10px;
    gap: 8px;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
  }
  
  .menu-label, .sidebar-footer { display: none; }
  
  .nav-item {
    flex-direction: column;
    padding: 8px 12px;
    font-size: 11px;
    gap: 4px;
    text-align: center;
  }
  
  .nav-item i { font-size: 18px; }
  
  .main-content {
    margin-left: 0;
    padding: 16px;
  }
  
  .content-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .top-actions {
    width: 100%;
    justify-content: space-between;
    margin-top: 12px;
    overflow-x: auto;
    padding-bottom: 8px;
  }
  
  /* Tables & Forms */
  .form-grid { grid-template-columns: 1fr !important; }
  .data-grid-container { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  table { min-width: 800px; }
  
  /* Modals */
  .modal-box { width: 95%; margin: 10px; }
}

@media screen and (max-width: 480px) {
  .kpi-grid { grid-template-columns: 1fr; }
  .page-title h1 { font-size: 20px; }
  .login-card { padding: 24px; margin: 16px; width: calc(100% - 32px); }
}

/* Temperature Status Colors */
.temp-normal { color: var(--status-done); font-weight: 600; }
.temp-moderate { color: var(--status-due); font-weight: 600; }
.temp-critical { color: var(--status-critical); font-weight: 600; }