/* ==========================================================================
   MP5555 ENTERPRISE MANAGEMENT SYSTEM - UNIFIED DARK THEME
   Modern, Sleek, High-Contrast Obsidian & Slate Dashboard Styling
   ========================================================================== */

:root {
  --bg-base: #0b0f17;
  --bg-surface: #111827;
  --bg-card: #162032;
  --bg-card-hover: #1e2c44;
  --bg-input: #0f172a;
  --border-color: #24344d;
  --border-light: rgba(255, 255, 255, 0.08);

  --text-main: #f3f4f6;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --accent-gold: #f59e0b;
  --accent-gold-hover: #d97706;
  --accent-gold-bg: rgba(245, 158, 11, 0.12);

  --accent-blue: #38bdf8;
  --accent-blue-bg: rgba(56, 189, 248, 0.12);

  --accent-green: #10b981;
  --accent-green-bg: rgba(16, 185, 129, 0.12);

  --accent-red: #ef4444;
  --accent-red-bg: rgba(239, 68, 68, 0.12);

  --accent-purple: #a855f7;
  --accent-purple-bg: rgba(168, 85, 247, 0.12);

  --sidebar-width: 260px;
  --header-height: 64px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-main: 0 4px 20px -2px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 15px rgba(245, 158, 11, 0.2);
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-base);
  color: var(--text-main);
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Layout Hierarchy */
.app-wrapper {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.app-sidebar {
  width: var(--sidebar-width);
  background-color: var(--bg-surface);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 1000;
  transition: transform 0.3s ease;
}

.sidebar-header {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  border-bottom: 1px solid var(--border-color);
}

.brand-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-main);
}

.brand-badge .logo-icon {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: linear-gradient(135deg, #f59e0b, #d97706);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 16px;
  color: #0b0f17;
  box-shadow: 0 2px 8px rgba(245, 158, 11, 0.3);
}

.brand-badge .brand-text {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.brand-badge .role-pill {
  font-size: 10px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  text-transform: uppercase;
}

.role-pill.admin { background: var(--accent-red-bg); color: var(--accent-red); border: 1px solid var(--accent-red); }
.role-pill.agent { background: var(--accent-gold-bg); color: var(--accent-gold); border: 1px solid var(--accent-gold); }
.role-pill.teacher { background: var(--accent-blue-bg); color: var(--accent-blue); border: 1px solid var(--accent-blue); }

.sidebar-menu {
  flex: 1;
  overflow-y: auto;
  padding: 16px 10px;
  list-style: none;
}

.menu-label {
  font-size: 11px;
  text-transform: uppercase;
  color: var(--text-dim);
  font-weight: 700;
  padding: 12px 14px 6px;
  letter-spacing: 0.5px;
}

.menu-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 16px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 500;
  margin-bottom: 3px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.menu-item:hover {
  background-color: var(--bg-card);
  color: var(--text-main);
}

.menu-item.active {
  background: linear-gradient(90deg, var(--bg-card-hover), var(--bg-card));
  color: var(--accent-gold);
  border-left: 3px solid var(--accent-gold);
  font-weight: 600;
}

.menu-item .menu-icon {
  width: 18px;
  text-align: center;
  font-size: 15px;
}

.menu-item .badge-count {
  margin-left: auto;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 2px 7px;
  border-radius: 10px;
  font-size: 11px;
  color: var(--text-muted);
}

.sidebar-footer {
  padding: 14px 18px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.user-mini-card {
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--bg-card-hover);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--accent-gold);
  font-weight: 600;
}

.user-info .user-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-main);
  max-width: 130px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-info .user-role {
  font-size: 11px;
  color: var(--text-muted);
}

.btn-icon-logout {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 16px;
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
  transition: all 0.2s;
}

.btn-icon-logout:hover {
  color: var(--accent-red);
  background: var(--accent-red-bg);
}

/* Main Content Area */
.app-main {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.app-header {
  height: var(--header-height);
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 900;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.sidebar-toggle-btn {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-main);
  font-size: 18px;
  cursor: pointer;
  padding: 6px;
}

.page-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
}

.breadcrumb-root {
  color: var(--text-muted);
}

.breadcrumb-sep {
  color: var(--text-dim);
  font-size: 12px;
}

.breadcrumb-current {
  color: var(--text-main);
  font-weight: 600;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

.header-notice {
  background: var(--accent-gold-bg);
  color: var(--accent-gold);
  border: 1px solid rgba(245, 158, 11, 0.25);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn-pill {
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-main);
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
}

.btn-pill:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}

.btn-pill-primary {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  border: none;
  color: #0b0f17;
}

.btn-pill-primary:hover {
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  color: #0b0f17;
  box-shadow: 0 0 10px rgba(245, 158, 11, 0.3);
}

/* Content Container */
.app-content {
  flex: 1;
  padding: 24px;
  max-width: 1440px;
  width: 100%;
  margin: 0 auto;
}

/* Dashboard Metric Cards */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 18px;
  margin-bottom: 24px;
}

.metric-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  transition: transform 0.2s, border-color 0.2s;
}

.metric-card:hover {
  transform: translateY(-2px);
  border-color: rgba(245, 158, 11, 0.4);
}

.metric-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-gold), transparent);
}

.metric-card.card-blue::before { background: linear-gradient(90deg, var(--accent-blue), transparent); }
.metric-card.card-green::before { background: linear-gradient(90deg, var(--accent-green), transparent); }
.metric-card.card-purple::before { background: linear-gradient(90deg, var(--accent-purple), transparent); }
.metric-card.card-red::before { background: linear-gradient(90deg, var(--accent-red), transparent); }

.metric-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.metric-title {
  font-size: 12.5px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.metric-icon-bubble {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.metric-icon-bubble.gold { background: var(--accent-gold-bg); color: var(--accent-gold); }
.metric-icon-bubble.blue { background: var(--accent-blue-bg); color: var(--accent-blue); }
.metric-icon-bubble.green { background: var(--accent-green-bg); color: var(--accent-green); }
.metric-icon-bubble.purple { background: var(--accent-purple-bg); color: var(--accent-purple); }
.metric-icon-bubble.red { background: var(--accent-red-bg); color: var(--accent-red); }

.metric-value {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 6px;
}

.metric-sub {
  font-size: 12px;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 5px;
}

.metric-sub.positive { color: var(--accent-green); }
.metric-sub.negative { color: var(--accent-red); }

/* Charts & Analytics Section */
.charts-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}

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

.chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.chart-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
}

.chart-filters {
  display: flex;
  gap: 6px;
}

.filter-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 11px;
  cursor: pointer;
}

.filter-btn.active {
  background: var(--accent-gold);
  color: #0b0f17;
  font-weight: 600;
  border-color: var(--accent-gold);
}

/* Panel Section Container */
.panel-section {
  display: none;
}

.panel-section.active {
  display: block;
  animation: fadeIn 0.25s ease-in-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.section-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

/* Data Table Card */
.table-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0,0,0,0.25);
  margin-bottom: 24px;
}

.table-toolbar {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  background: rgba(17, 24, 39, 0.5);
}

.search-box {
  position: relative;
  min-width: 260px;
}

.search-box input {
  width: 100%;
  padding: 8px 12px 8px 34px;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 13px;
  outline: none;
  transition: border-color 0.2s;
}

.search-box input:focus {
  border-color: var(--accent-gold);
}

.search-box i {
  position: absolute;
  left: 11px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-dim);
  font-size: 13px;
}

.table-filters {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.select-filter, .date-filter {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  padding: 7px 10px;
  font-size: 12.5px;
  outline: none;
}

.select-filter:focus, .date-filter:focus {
  border-color: var(--accent-gold);
}

.table-responsive {
  overflow-x: auto;
  width: 100%;
}

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

.data-table th {
  background-color: rgba(15, 23, 42, 0.7);
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.5px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.data-table td {
  padding: 13px 16px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-main);
  vertical-align: middle;
}

.data-table tbody tr {
  transition: background-color 0.15s;
}

.data-table tbody tr:hover {
  background-color: rgba(255, 255, 255, 0.02);
}

/* Badges & Status */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
}

.status-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.status-badge.active, .status-badge.completed, .status-badge.paid, .status-badge.resolved {
  background-color: var(--accent-green-bg);
  color: var(--accent-green);
  border: 1px solid rgba(16, 185, 129, 0.3);
}
.status-badge.active::before, .status-badge.completed::before, .status-badge.paid::before, .status-badge.resolved::before {
  background-color: var(--accent-green);
}

.status-badge.suspended, .status-badge.rejected, .status-badge.closed, .status-badge.urgent {
  background-color: var(--accent-red-bg);
  color: var(--accent-red);
  border: 1px solid rgba(239, 68, 68, 0.3);
}
.status-badge.suspended::before, .status-badge.rejected::before, .status-badge.closed::before, .status-badge.urgent::before {
  background-color: var(--accent-red);
}

.status-badge.pending, .status-badge.in_progress, .status-badge.open {
  background-color: var(--accent-gold-bg);
  color: var(--accent-gold);
  border: 1px solid rgba(245, 158, 11, 0.3);
}
.status-badge.pending::before, .status-badge.in_progress::before, .status-badge.open::before {
  background-color: var(--accent-gold);
}

/* Action Buttons inside Table */
.btn-action {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  width: 28px;
  height: 28px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  cursor: pointer;
  margin-right: 4px;
  transition: all 0.15s;
}

.btn-action:hover {
  background: var(--bg-card-hover);
  color: var(--text-main);
  border-color: var(--accent-gold);
}

.btn-action.btn-danger:hover {
  border-color: var(--accent-red);
  color: var(--accent-red);
  background: var(--accent-red-bg);
}

/* Modals */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.modal-overlay.active {
  display: flex;
}

.modal-dialog {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 580px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
  animation: modalPop 0.2s ease-out;
}

@keyframes modalPop {
  from { transform: scale(0.96); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal-header {
  padding: 18px 22px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 20px;
  cursor: pointer;
  padding: 4px;
  line-height: 1;
}

.modal-close:hover {
  color: var(--accent-red);
}

.modal-body {
  padding: 22px;
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: 14px 22px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  background: rgba(15, 23, 42, 0.4);
}

/* Forms */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 9px 13px;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 13.5px;
  outline: none;
  transition: border-color 0.2s;
}

.form-control:focus {
  border-color: var(--accent-gold);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

textarea.form-control {
  min-height: 80px;
  resize: vertical;
}

/* Buttons */
.btn {
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  transition: all 0.2s;
}

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

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

.btn-primary {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #0b0f17;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  box-shadow: 0 0 12px rgba(245, 158, 11, 0.35);
}

.btn-success {
  background-color: var(--accent-green);
  color: #0b0f17;
}

.btn-danger {
  background-color: var(--accent-red);
  color: #fff;
}

/* Toast Notifications */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast-msg {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 12px 18px;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 280px;
  max-width: 420px;
  font-size: 13px;
  animation: slideIn 0.25s ease-out;
}

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

.toast-msg.success { border-left: 4px solid var(--accent-green); }
.toast-msg.error { border-left: 4px solid var(--accent-red); }
.toast-msg.info { border-left: 4px solid var(--accent-blue); }

/* Responsive adjustments */
@media (max-width: 992px) {
  .app-sidebar {
    transform: translateX(-100%);
  }

  .app-sidebar.show {
    transform: translateX(0);
  }

  .app-main {
    margin-left: 0;
  }

  .sidebar-toggle-btn {
    display: inline-block;
  }

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

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

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

.stat-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.22);
}

.stat-card-title {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 8px;
}

.stat-card-value {
  font-size: 24px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 4px;
}

.stat-card-value.text-danger { color: var(--accent-red); }
.stat-card-value.text-primary { color: #38bdf8; }
.stat-card-value.text-gold { color: var(--accent-gold); }
.stat-card-value.text-green { color: var(--accent-green); }

.stat-card-sub {
  font-size: 12px;
  color: var(--text-dim);
}

@media (max-width: 640px) {
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .stat-card {
    padding: 12px;
  }

  .stat-card-value {
    font-size: 18px;
  }

  .app-content {
    padding: 12px;
  }

  .app-header {
    padding: 0 14px;
    height: 56px;
  }

  .panel-table th, .panel-table td {
    padding: 10px 8px;
    font-size: 12px;
  }

  .modal-dialog {
    width: 95%;
    margin: 10px auto;
    padding: 16px;
  }

  .filter-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .filter-bar input, .filter-bar select, .filter-bar button {
    width: 100%;
  }

  .header-actions {
    gap: 6px;
  }

  .btn-pill {
    padding: 6px 10px;
    font-size: 11px;
  }
}