/* ==========================================================================
   ACTIVE ENTERPRISE APP PORTAL - DESIGN SYSTEM & STYLESHEET
   Corporate UI/UX Guidelines: 60-30-10 Canvas / White Surfaces / Blue Accents
   ========================================================================== */

:root {
  /* 60% Base Canvas & Backgrounds */
  --bg-canvas: #f1f5f9;       /* Slate-100 */
  --bg-canvas-subtle: #f8fafc;/* Slate-50 */
  
  /* 30% Structural Panels & Surfaces */
  --surface-card: #ffffff;
  --surface-subtle: #f8fafc;
  --surface-hover: #f1f5f9;
  
  /* High-Contrast Borders */
  --border-card: #cbd5e1;     /* Slate-300 */
  --border-divider: #e2e8f0;  /* Slate-200 */
  --border-focus: #2563eb;
  
  /* 10% Brand Accents & Intent Colors */
  --primary: #2563eb;         /* Royal Blue */
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --primary-border: #bfdbfe;
  
  --success: #059669;         /* Emerald Green */
  --success-light: #ecfdf5;
  --warning: #d97706;         /* Amber */
  --warning-light: #fffbeb;
  --danger: #dc2626;          /* Red */
  --danger-light: #fef2f2;
  
  /* Text Typography */
  --text-main: #0f172a;       /* Slate-900 */
  --text-muted: #475569;      /* Slate-600 */
  --text-subtle: #64748b;     /* Slate-500 */
  --text-inverse: #ffffff;
  
  /* Layered Shadows */
  --shadow-card: 0 1px 3px rgba(15, 23, 42, 0.08), 0 4px 6px -2px rgba(15, 23, 42, 0.04);
  --shadow-hover: 0 10px 20px -3px rgba(15, 23, 42, 0.10), 0 4px 8px -4px rgba(15, 23, 42, 0.05);
  --shadow-modal: 0 20px 25px -5px rgba(15, 23, 42, 0.15), 0 10px 10px -5px rgba(15, 23, 42, 0.04);
  
  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-pill: 9999px;
  
  /* Transition */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base Setup */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--text-main);
  background-color: var(--bg-canvas);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: inherit;
  text-decoration: none;
}

button, input, select, textarea {
  font: inherit;
}

/* Tabular figures for data and metrics */
.tabular-nums {
  font-variant-numeric: tabular-nums;
}

/* ==========================================================================
   GLOBAL APP HEADER (Enterprise Top Bar)
   ========================================================================== */
.portal-header {
  background-color: var(--surface-card);
  border-bottom: 1px solid var(--border-card);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.brand-logo-link {
  display: flex;
  align-items: center;
}

.brand-logo-img {
  height: 36px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
  display: block;
}

.brand-divider {
  width: 1px;
  height: 28px;
  background-color: var(--border-card);
  margin: 0 0.15rem;
}

.brand-logo-badge {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #1e40af, #2563eb);
  color: var(--text-inverse);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.03em;
  box-shadow: 0 2px 4px rgba(37, 99, 235, 0.3);
}

.brand-title-group h1 {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-main);
  line-height: 1.2;
}

.brand-title-group .brand-sub {
  font-size: 0.75rem;
  color: var(--text-subtle);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-domain-pill {
  background-color: var(--bg-canvas);
  border: 1px solid var(--border-divider);
  padding: 1px 6px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  color: var(--primary);
  font-size: 0.7rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Pulsing Online Badge */
.status-pill-online {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: var(--success-light);
  border: 1px solid #a7f3d0;
  color: #065f46;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
}

.pulse-dot {
  width: 7px;
  height: 7px;
  background-color: var(--success);
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(5, 150, 105, 0.5);
  animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
  0% { box-shadow: 0 0 0 0 rgba(5, 150, 105, 0.6); }
  70% { box-shadow: 0 0 0 6px rgba(5, 150, 105, 0); }
  100% { box-shadow: 0 0 0 0 rgba(5, 150, 105, 0); }
}

/* Standard Corporate Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  height: 38px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--text-inverse);
  box-shadow: 0 1px 2px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  box-shadow: 0 2px 4px rgba(37, 99, 235, 0.3);
}

.btn-outline {
  background-color: var(--surface-card);
  border-color: var(--border-card);
  color: var(--text-muted);
}

.btn-outline:hover {
  background-color: var(--surface-hover);
  color: var(--text-main);
  border-color: #94a3b8;
}

.btn-icon-only {
  width: 38px;
  height: 38px;
  padding: 0;
  border-radius: var(--radius-sm);
}

/* ==========================================================================
   HERO / KPI SUMMARY BAR
   ========================================================================== */
.portal-hero {
  background-color: var(--surface-card);
  border-bottom: 1px solid var(--border-card);
  padding: 1.75rem 1.5rem;
}

.hero-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 2rem;
  align-items: center;
}

.hero-welcome h2 {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-main);
  margin-bottom: 0.4rem;
}

.hero-welcome p {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 620px;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.kpi-box {
  background-color: var(--bg-canvas-subtle);
  border: 1px solid var(--border-divider);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-fast);
}

.kpi-box:hover {
  transform: translateY(-2px);
  border-color: var(--border-card);
}

.kpi-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-subtle);
  margin-bottom: 0.25rem;
}

.kpi-figure {
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.1;
}

.kpi-figure.text-primary { color: var(--primary); }
.kpi-figure.text-success { color: var(--success); }

.kpi-trend {
  font-size: 0.7rem;
  font-weight: 600;
  margin-top: 0.25rem;
  color: var(--text-subtle);
}

/* ==========================================================================
   MAIN PORTAL CONTENT & TOOLBAR
   ========================================================================== */
.portal-main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
  flex: 1;
  width: 100%;
}

.portal-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.75rem;
  background-color: var(--surface-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  box-shadow: var(--shadow-card);
}

/* Category Filter Tabs */
.category-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.cat-btn {
  padding: 0.45rem 0.9rem;
  background-color: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.cat-btn:hover {
  background-color: var(--bg-canvas);
  color: var(--text-main);
}

.cat-btn.active {
  background-color: var(--primary-light);
  border-color: var(--primary-border);
  color: var(--primary);
  font-weight: 700;
}

/* Search Box */
.search-wrapper {
  position: relative;
  min-width: 280px;
  max-width: 360px;
  flex: 1;
}

.search-input {
  width: 100%;
  height: 38px;
  padding: 0.4rem 2.4rem 0.4rem 2.2rem;
  background-color: var(--bg-canvas-subtle);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--text-main);
  transition: all var(--transition-fast);
}

.search-input:focus {
  outline: none;
  background-color: var(--surface-card);
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-subtle);
  pointer-events: none;
}

.search-shortcut {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  background-color: var(--surface-card);
  border: 1px solid var(--border-card);
  border-radius: 4px;
  padding: 1px 6px;
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--text-subtle);
  pointer-events: none;
}

/* ==========================================================================
   APP CARDS GRID ARCHITECTURE
   ========================================================================== */
.apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.25rem;
}

/* Card Container with Defined Borders & Layered Shadow */
.app-card {
  background-color: var(--surface-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.app-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: #94a3b8;
}

/* 3px Color-Coded Method Top Accent Bar */
.card-top-accent {
  height: 4px;
  width: 100%;
  background-color: var(--primary);
}

.app-card-body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

/* Card Header Row */
.card-header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.app-icon-wrapper {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.app-meta-badges {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border: 1px solid transparent;
}

.badge-outline {
  background-color: var(--bg-canvas);
  border-color: var(--border-card);
  color: var(--text-muted);
}

.badge-accent {
  background-color: var(--primary-light);
  border-color: var(--primary-border);
  color: var(--primary);
}

/* Card Title & Description */
.app-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.4rem;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.app-card-desc {
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.45;
  margin-bottom: 1.25rem;
  flex: 1;
}

/* Card Action Footer */
.app-card-footer {
  padding-top: 0.85rem;
  border-top: 1px solid var(--border-divider);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.launch-btn {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--bg-canvas-subtle);
  border: 1px solid var(--border-card);
  color: var(--text-main);
  font-weight: 600;
  font-size: 0.84rem;
  height: 36px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.launch-btn:hover {
  background-color: var(--primary);
  border-color: var(--primary);
  color: var(--text-inverse);
  box-shadow: 0 2px 4px rgba(37, 99, 235, 0.25);
}

.card-opt-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-card);
  background-color: var(--surface-card);
  border-radius: var(--radius-sm);
  color: var(--text-subtle);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.card-opt-btn:hover {
  background-color: var(--surface-hover);
  color: var(--text-main);
}

/* Empty State */
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 4rem 2rem;
  background-color: var(--surface-card);
  border: 1px dashed var(--border-card);
  border-radius: var(--radius-md);
}

.empty-state h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.4rem;
}

.empty-state p {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-bottom: 1.25rem;
}

/* ==========================================================================
   MODAL COMPONENT (Add / Edit App)
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.modal-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-box {
  background-color: var(--surface-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-modal);
  width: 100%;
  max-width: 540px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: translateY(12px);
  transition: transform var(--transition-fast);
}

.modal-backdrop.open .modal-box {
  transform: translateY(0);
}

.modal-header {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-divider);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--surface-subtle);
}

.modal-header h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
}

.modal-close-btn {
  background: transparent;
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  color: var(--text-subtle);
  line-height: 1;
}

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-main);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  height: 38px;
  padding: 0.45rem 0.75rem;
  background-color: var(--surface-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--text-main);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-textarea {
  height: 72px;
  resize: vertical;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-hint {
  font-size: 0.72rem;
  color: var(--text-subtle);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-divider);
  background-color: var(--surface-subtle);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
}

/* ==========================================================================
   TOAST NOTIFICATIONS
   ========================================================================== */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  background-color: var(--text-main);
  color: var(--text-inverse);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  box-shadow: var(--shadow-modal);
  animation: toast-in 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes toast-in {
  from { transform: translateY(10px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* ==========================================================================
   GLOBAL FOOTER
   ========================================================================== */
.portal-footer {
  background-color: var(--surface-card);
  border-top: 1px solid var(--border-card);
  padding: 1.25rem 1.5rem;
  margin-top: auto;
}

.footer-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--text-subtle);
}

.footer-links {
  display: flex;
  gap: 1.25rem;
}

.footer-links a:hover {
  color: var(--primary);
}

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
}

@media (max-width: 680px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .portal-toolbar {
    flex-direction: column;
    align-items: stretch;
  }
  .search-wrapper {
    max-width: 100%;
  }
  .kpi-grid {
    grid-template-columns: 1fr;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   ROLE-BASED ACCESS CONTROL (RBAC) & USER MANAGEMENT
   ========================================================================== */
.user-role-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.badge-role-admin {
  background-color: var(--primary-light);
  border: 1px solid var(--primary-border);
  color: var(--primary);
}

.badge-role-staff {
  background-color: var(--bg-canvas);
  border: 1px solid var(--border-card);
  color: var(--text-muted);
}

.perm-checkbox-item:hover {
  background-color: var(--surface-hover);
  border-radius: var(--radius-sm);
}

.users-table tr:hover td {
  background-color: var(--surface-subtle);
}