:root {
  --bg-body: #0b0f19;
  --bg-surface: #111827;
  --bg-elevated: #1e293b;
  --bg-hover: #263349;
  --bg-input: #0f172a;
  --border-color: rgba(148, 163, 184, 0.14);
  --border-strong: rgba(148, 163, 184, 0.26);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #6366f1;
  --accent-hover: #4f46e5;
  --accent-soft: rgba(99, 102, 241, 0.14);
  --success: #10b981;
  --success-soft: rgba(16, 185, 129, 0.14);
  --warning: #f59e0b;
  --warning-soft: rgba(245, 158, 11, 0.14);
  --orange: #f97316;
  --orange-soft: rgba(249, 115, 22, 0.15);
  --danger: #ef4444;
  --danger-soft: rgba(239, 68, 68, 0.14);
  --info: #38bdf8;
  --info-soft: rgba(56, 189, 248, 0.14);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.45);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --sidebar-width: 265px;
  --transition: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
  --bg-body: #f1f5f9;
  --bg-surface: #ffffff;
  --bg-elevated: #f8fafc;
  --bg-hover: #e2e8f0;
  --bg-input: #ffffff;
  --border-color: #e2e8f0;
  --border-strong: #cbd5e1;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --accent-soft: rgba(79, 70, 229, 0.1);
  --shadow-sm: 0 1px 4px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.12);
}

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

html, body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Oxygen, Ubuntu, sans-serif;
  background-color: var(--bg-body);
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.hidden {
  display: none !important;
}

/* ============================================================================
   AUTH SCREENS (LOGIN & MANDATORY PASSWORD CHANGE)
============================================================================ */
.auth-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background:
    radial-gradient(circle at 15% 20%, rgba(99, 102, 241, 0.15), transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(16, 185, 129, 0.1), transparent 40%),
    var(--bg-body);
}

.auth-card {
  width: 100%;
  max-width: 440px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow-lg);
  animation: fadeUp 0.25s ease-out;
}

.auth-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.brand-icon {
  width: 42px;
  height: 42px;
  border-radius: 11px;
  background: linear-gradient(135deg, var(--accent), #818cf8);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
  flex-shrink: 0;
}

.auth-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
}

.auth-subtitle {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.security-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 600;
  background: var(--accent-soft);
  color: var(--accent);
  margin-bottom: 16px;
}

/* ============================================================================
   MAIN APP LAYOUT (SIDEBAR + MAIN CONTENT)
============================================================================ */
.app-layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-width);
  background: 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: 40;
  transition: transform var(--transition);
}

.sidebar-header {
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 12px;
}

.sidebar-brand-text h1 {
  font-size: 15.5px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.sidebar-brand-text span {
  font-size: 11.5px;
  color: var(--text-secondary);
  display: block;
}

.sidebar-nav {
  padding: 16px 12px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
}

.nav-section-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  padding: 10px 12px 6px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 10px 13px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  background: transparent;
  border: none;
  width: 100%;
  text-align: left;
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}

.nav-item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  opacity: 0.85;
}

.nav-item:hover {
  background: var(--bg-elevated);
  color: var(--text-primary);
}

.nav-item.active {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}

.nav-badge {
  margin-left: auto;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 999px;
  background: var(--bg-elevated);
  color: var(--text-secondary);
}

.sidebar-quota-box {
  margin: 12px;
  padding: 14px;
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
}

.sidebar-quota-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 8px;
}

.quota-mini-bar {
  height: 7px;
  background: var(--bg-body);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 6px;
}

.quota-mini-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--info));
  border-radius: 999px;
  transition: width 0.35s ease;
}

.quota-mini-sub {
  font-size: 11.5px;
  color: var(--text-secondary);
  display: flex;
  justify-content: space-between;
}

.main-area {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.topbar {
  height: 64px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 30;
}

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

.mobile-menu-btn {
  display: none;
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 7px;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.page-title {
  font-size: 17px;
  font-weight: 700;
}

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

.content-container {
  padding: 26px 28px 48px;
  max-width: 1440px;
  width: 100%;
  margin: 0 auto;
}

/* ============================================================================
   CARDS, GRIDS, BADGES & BUTTONS
============================================================================ */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
  margin-bottom: 22px;
}

.kpi-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color var(--transition), transform var(--transition);
}

.kpi-card:hover {
  border-color: var(--border-strong);
}

.kpi-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-secondary);
  font-size: 12.5px;
  font-weight: 600;
}

.kpi-icon {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.kpi-value {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.kpi-sub {
  font-size: 12px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 22px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 22px;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.card-title {
  font-size: 15.5px;
  font-weight: 700;
}

.card-subtitle {
  font-size: 12.5px;
  color: var(--text-secondary);
  margin-top: 2px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
  gap: 18px;
}

/* ============================================================================
   QUOTA GAUGE & ALERT BANNERS (80%, 90%, 95%, 100%)
============================================================================ */
.alert-banner {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 15px 18px;
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  border: 1px solid transparent;
  animation: fadeUp 0.2s ease-out;
}

.alert-banner.warning_80 {
  background: var(--warning-soft);
  border-color: rgba(245, 158, 11, 0.4);
  color: #fbbf24;
}

.alert-banner.warning_90 {
  background: var(--orange-soft);
  border-color: rgba(249, 115, 22, 0.45);
  color: #fb923c;
}

.alert-banner.critical_95,
.alert-banner.full_100 {
  background: var(--danger-soft);
  border-color: rgba(239, 68, 68, 0.5);
  color: #f87171;
}

[data-theme="light"] .alert-banner.warning_80 { color: #b45309; }
[data-theme="light"] .alert-banner.warning_90 { color: #c2410c; }
[data-theme="light"] .alert-banner.critical_95,
[data-theme="light"] .alert-banner.full_100 { color: #b91c1c; }

.quota-big-bar {
  height: 18px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  overflow: hidden;
  display: flex;
  margin: 14px 0;
  position: relative;
}

.quota-segment {
  height: 100%;
  transition: width 0.4s ease;
}

.quota-markers {
  display: flex;
  justify-content: space-between;
  font-size: 11.5px;
  color: var(--text-muted);
  margin-top: 6px;
}

.quota-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 14px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 12.5px;
  color: var(--text-secondary);
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 3px;
}

/* ============================================================================
   BUTTONS, INPUTS & FORMS
============================================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 8.5px 15px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn svg {
  width: 16px;
  height: 16px;
}

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

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

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

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

.btn-danger {
  background: var(--danger-soft);
  color: var(--danger);
  border-color: rgba(239, 68, 68, 0.3);
}

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

.btn-success {
  background: var(--success-soft);
  color: var(--success);
  border-color: rgba(16, 185, 129, 0.3);
}

.btn-sm {
  padding: 5px 10px;
  font-size: 12px;
}

.btn-icon {
  padding: 7px;
}

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

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

.form-hint {
  font-size: 11.5px;
  color: var(--text-muted);
  margin-top: 4px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 9.5px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 13.5px;
  font-family: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.checkbox-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.checkbox-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 12.5px;
  font-weight: 500;
  user-select: none;
}

.checkbox-pill input {
  accent-color: var(--accent);
}

/* ============================================================================
   TABLES & BADGES
============================================================================ */
.table-wrap {
  width: 100%;
  overflow-x: auto;
}

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

.data-table th {
  padding: 11px 14px;
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-color);
  font-size: 13px;
  vertical-align: middle;
}

.data-table tr:hover td {
  background: rgba(148, 163, 184, 0.04);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 600;
  white-space: nowrap;
}

.badge-success { background: var(--success-soft); color: var(--success); }
.badge-warning { background: var(--warning-soft); color: var(--warning); }
.badge-danger  { background: var(--danger-soft); color: var(--danger); }
.badge-info    { background: var(--info-soft); color: var(--info); }
.badge-accent  { background: var(--accent-soft); color: var(--accent); }
.badge-muted   { background: var(--bg-elevated); color: var(--text-secondary); }

.mono {
  font-family: "JetBrains Mono", "Fira Code", Consolas, monospace;
  font-size: 12px;
}

/* ============================================================================
   DRAG & DROP FILE UPLOAD ZONE
============================================================================ */
.dropzone {
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius-md);
  padding: 28px 20px;
  text-align: center;
  background: var(--bg-elevated);
  cursor: pointer;
  transition: all var(--transition);
  margin-bottom: 18px;
}

.dropzone:hover,
.dropzone.dragover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.upload-progress-box {
  margin-top: 12px;
  padding: 12px 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
}

.progress-track {
  height: 8px;
  background: var(--bg-input);
  border-radius: 999px;
  overflow: hidden;
  margin-top: 6px;
}

.progress-fill {
  height: 100%;
  background: var(--accent);
  width: 0%;
  transition: width 0.15s ease;
}

/* ============================================================================
   CODE BLOCKS & INTERACTIVE CHARTS
============================================================================ */
.code-block {
  position: relative;
  background: #090d16;
  color: #e2e8f0;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font-family: "JetBrains Mono", Consolas, monospace;
  font-size: 12.5px;
  overflow-x: auto;
  line-height: 1.55;
  white-space: pre;
}

.tabs-bar {
  display: inline-flex;
  background: var(--bg-elevated);
  padding: 4px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  gap: 4px;
}

.tab-btn {
  padding: 6px 12px;
  border-radius: 6px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}

.tab-btn.active {
  background: var(--accent);
  color: #fff;
}

/* ============================================================================
   MODALS & TOAST NOTIFICATIONS
============================================================================ */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(5, 8, 17, 0.72);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 100;
  animation: fadeIn 0.15s ease-out;
}

.modal-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 620px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 26px;
  box-shadow: var(--shadow-lg);
  animation: fadeUp 0.2s ease-out;
}

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

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 380px;
}

.toast {
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  animation: fadeUp 0.2s ease-out;
}

.toast.success { border-left-color: var(--success); }
.toast.error   { border-left-color: var(--danger); }
.toast.warning { border-left-color: var(--warning); }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@media (max-width: 960px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .main-area {
    margin-left: 0;
  }
  .mobile-menu-btn {
    display: inline-flex;
  }
  .grid-2 {
    grid-template-columns: 1fr;
  }
  .content-container {
    padding: 18px 16px 40px;
  }
}