/*
 * Mobile design system — entirely separate from the desktop AdminLTE/
 * Bootstrap styling (frontend/src/index.css). Every selector is scoped
 * under `.mob-app` and every class is prefixed `mob-` so it can never
 * collide with or be affected by AdminLTE's global classes (e.g. both
 * define an "app-sidebar" concept, but under different names/rules).
 * Adapted from a provided reference design (purple theme, card system,
 * slide-out sidebar, bottom tab bar).
 */

.mob-app {
  --mob-primary: #6c63ff;
  --mob-primary-light: #8a84ff;
  --mob-bg: #f5f5f9;
  --mob-white: #ffffff;
  --mob-text-dark: #333333;
  --mob-text-medium: #555555;
  --mob-text-light: #999999;
  --mob-border: #eeeeee;
  --mob-light-gray-bg: #f7f7f7;
  --mob-success: #4caf50;
  --mob-warning: #ff9800;
  --mob-danger: #f44336;
  --mob-tab-bar-height: 62px;
  --mob-padding: 16px;

  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--mob-bg);
  color: var(--mob-text-dark);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.mob-app * {
  box-sizing: border-box;
}

/* Header */
.mob-header {
  flex-shrink: 0;
  padding: 10px var(--mob-padding);
  padding-top: 14px;
  background: var(--mob-white);
  border-bottom: 1px solid var(--mob-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 10;
}
.mob-header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}
.mob-menu-btn {
  border: none;
  background: var(--mob-light-gray-bg);
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--mob-text-medium);
  cursor: pointer;
  transition: all 0.2s;
}
.mob-menu-btn:hover {
  background: var(--mob-primary);
  color: var(--mob-white);
}
.mob-title {
  display: flex;
  flex-direction: column;
}
.mob-title span:first-child {
  font-size: 10px;
  color: var(--mob-text-light);
  font-weight: 500;
}
.mob-title span:last-child {
  font-size: 17px;
  font-weight: 800;
  color: var(--mob-primary);
}
.mob-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.mob-icon-btn {
  border: none;
  background: var(--mob-light-gray-bg);
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  color: var(--mob-text-medium);
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
}
.mob-icon-btn:hover {
  background: var(--mob-primary);
  color: var(--mob-white);
}
.mob-badge-dot {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 9px;
  height: 9px;
  background: var(--mob-danger);
  border-radius: 50%;
  border: 2px solid var(--mob-white);
}

/* Slide-out sidebar */
.mob-sidebar {
  position: fixed;
  top: 0;
  left: -280px;
  width: 280px;
  height: 100vh;
  background: var(--mob-white);
  box-shadow: 2px 0 12px rgba(0, 0, 0, 0.12);
  z-index: 60;
  display: flex;
  flex-direction: column;
  padding: 14px;
  transition: left 0.25s ease-out;
  overflow-y: auto;
}
.mob-sidebar.mob-open {
  left: 0;
}
.mob-sidebar-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 55;
  display: none;
  backdrop-filter: blur(2px);
}
.mob-sidebar-backdrop.mob-show {
  display: block;
}
.mob-sidebar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--mob-border);
}
.mob-sidebar-title {
  font-weight: 800;
  color: var(--mob-primary);
  font-size: 17px;
}
.mob-sidebar-close {
  border: none;
  background: var(--mob-light-gray-bg);
  font-size: 18px;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  color: var(--mob-text-medium);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
}
.mob-sidebar-close:hover {
  background: var(--mob-danger);
  color: var(--mob-white);
}
.mob-sidebar-section-label {
  font-size: 10px;
  text-transform: uppercase;
  color: var(--mob-text-light);
  margin-top: 14px;
  margin-bottom: 6px;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding-left: 4px;
}
.mob-sidebar-link {
  width: 100%;
  border: none;
  background: transparent;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 10px;
  border-radius: 10px;
  font-size: 14px;
  color: var(--mob-text-medium);
  text-align: left;
  cursor: pointer;
  transition: all 0.2s;
  font-weight: 500;
  text-decoration: none;
}
.mob-sidebar-link .mob-nav-icon {
  font-size: 18px;
  width: 24px;
  text-align: center;
}
.mob-sidebar-link:hover {
  background: linear-gradient(135deg, rgba(108, 99, 255, 0.1), rgba(108, 99, 255, 0.05));
  transform: translateX(3px);
}
.mob-sidebar-link.mob-active {
  background: linear-gradient(135deg, var(--mob-primary), var(--mob-primary-light));
  color: var(--mob-white);
  box-shadow: 0 4px 12px rgba(108, 99, 255, 0.3);
}

/* Content */
.mob-content {
  flex: 1;
  overflow-y: auto;
  padding: 14px var(--mob-padding);
  padding-bottom: calc(var(--mob-tab-bar-height) + 14px);
}

/* Bottom tab bar */
.mob-tab-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: var(--mob-tab-bar-height);
  background: var(--mob-white);
  border-top: 1px solid var(--mob-border);
  display: flex;
  justify-content: space-around;
  align-items: center;
  z-index: 20;
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.08);
}
.mob-tab-item {
  flex: 1;
  text-align: center;
  font-size: 10px;
  color: var(--mob-text-light);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  cursor: pointer;
  padding: 6px 0;
  transition: all 0.2s;
  text-decoration: none;
}
.mob-tab-item .mob-nav-icon {
  font-size: 20px;
}
.mob-tab-item.mob-active {
  color: var(--mob-primary);
  font-weight: 700;
}

/* KPI cards */
.mob-kpi-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}
@media (min-width: 540px) {
  .mob-kpi-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
.mob-kpi-card {
  background: var(--mob-white);
  padding: 16px;
  border-radius: 14px;
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.06);
  border-left: 5px solid var(--mob-primary);
}
.mob-kpi-label {
  font-size: 11px;
  color: var(--mob-text-light);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}
.mob-kpi-value {
  font-size: 22px;
  font-weight: 800;
}
.mob-kpi-change {
  font-size: 11px;
  margin-top: 8px;
  font-weight: 600;
}
.mob-kpi-change.mob-positive {
  color: var(--mob-success);
}
.mob-kpi-change.mob-negative {
  color: var(--mob-danger);
}

/* Section / generic cards */
.mob-section-card {
  background: var(--mob-white);
  border-radius: 16px;
  padding: 18px;
  box-shadow: 0 3px 15px rgba(0, 0, 0, 0.06);
  margin-bottom: 16px;
}
.mob-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  flex-wrap: wrap;
  gap: 10px;
}
.mob-section-header h4 {
  font-size: 16px;
  margin: 0;
  color: var(--mob-primary);
  font-weight: 700;
}
.mob-section-header small {
  font-size: 12px;
  color: var(--mob-text-light);
  font-weight: 500;
}

.mob-card {
  background: var(--mob-white);
  border-radius: 14px;
  padding: 14px 16px;
  margin-bottom: 12px;
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.06);
}

/* List rows (users, activity, etc.) */
.mob-list-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--mob-border);
}
.mob-list-item:last-child {
  border-bottom: none;
}
.mob-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--mob-primary), var(--mob-primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: white;
  font-size: 13px;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(108, 99, 255, 0.3);
}

/* Badges */
.mob-status-badge {
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  display: inline-block;
}
.mob-status-badge.mob-success {
  background: linear-gradient(135deg, #e8f5e9, #c8e6c9);
  color: #2e7d32;
}
.mob-status-badge.mob-warning {
  background: linear-gradient(135deg, #fff3e0, #ffe0b2);
  color: #ef6c00;
}
.mob-status-badge.mob-danger {
  background: linear-gradient(135deg, #ffebee, #ffcdd2);
  color: #c62828;
}
.mob-status-badge.mob-neutral {
  background: var(--mob-light-gray-bg);
  color: var(--mob-text-medium);
}

/* Search + filters */
.mob-search-bar {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.mob-search-input {
  flex: 1;
  min-width: 160px;
  padding: 11px 16px;
  border: 2px solid var(--mob-border);
  border-radius: 12px;
  font-size: 14px;
  background: white;
  font-weight: 500;
}
.mob-search-input:focus {
  outline: none;
  border-color: var(--mob-primary);
  box-shadow: 0 0 0 4px rgba(108, 99, 255, 0.15);
}

/* Buttons */
.mob-pill-btn {
  border-radius: 999px;
  padding: 9px 18px;
  font-size: 13px;
  border: none;
  background: linear-gradient(135deg, var(--mob-primary), var(--mob-primary-light));
  color: var(--mob-white);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 4px 12px rgba(108, 99, 255, 0.3);
}
.mob-pill-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(108, 99, 255, 0.4);
}
.mob-pill-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}
.mob-text-btn {
  border: none;
  background: none;
  color: var(--mob-primary);
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
  padding: 4px 8px;
}
.mob-text-btn.mob-danger {
  color: var(--mob-danger);
}

@media (prefers-color-scheme: dark) {
  .mob-app {
    --mob-bg: #17181f;
    --mob-white: #23242e;
    --mob-text-dark: #e6e6f0;
    --mob-text-medium: #b7b7c7;
    --mob-text-light: #7d7d8f;
    --mob-border: #33343f;
    --mob-light-gray-bg: #2b2c37;
  }
}