/* ==========================================================================
   DESIGN SYSTEM - MATERIAL DESIGN 3 VARIABLES
   ========================================================================== */
:root {
  /* Color Palette (Deep Indigo & Violet Scheme) */
  --primary-color: #6750A4;
  --on-primary: #FFFFFF;
  --primary-container: #EADDFF;
  --on-primary-container: #21005D;
  
  --secondary-color: #625B71;
  --on-secondary: #FFFFFF;
  --secondary-container: #E8DEF8;
  --on-secondary-container: #1D192B;

  --tertiary-color: #7D5260;
  --on-tertiary: #FFFFFF;
  --tertiary-container: #FFD8E4;
  --on-tertiary-container: #31111D;

  --background-color: #FEF7FF;
  --on-background: #1D1B20;
  
  --surface-color: #F7F2FA;
  --surface-variant: #E7E0EC;
  --on-surface: #1D1B20;
  --on-surface-variant: #49454F;
  --outline: #79747E;

  /* Status Colors */
  --color-success: #2E7D32;
  --color-success-container: #E8F5E9;
  --color-error: #B3261E;
  --color-error-container: #F9DEDC;
  --color-warning: #E65100;
  --color-warning-container: #FFF3E0;
  --color-info: #0288D1;
  --color-info-container: #E1F5FE;

  /* Elevation Shadows (Material Design 3) */
  --elevation-1: 0px 1px 3px 1px rgba(0, 0, 0, 0.15), 0px 1px 2px 0px rgba(0, 0, 0, 0.30);
  --elevation-2: 0px 2px 6px 2px rgba(0, 0, 0, 0.15), 0px 1px 2px 0px rgba(0, 0, 0, 0.30);
  --elevation-3: 0px 4px 8px 3px rgba(0, 0, 0, 0.15), 0px 1px 3px 0px rgba(0, 0, 0, 0.3);

  /* Border Radius */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 28px; /* Material M3 Full Pill */

  /* Fonts */
  --font-display: 'Outfit', 'Sarabun', sans-serif;
  --font-body: 'Sarabun', 'Outfit', sans-serif;
}

/* ==========================================================================
   RESET & GLOBAL BASE STYLES
   ========================================================================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-body);
  background-color: var(--background-color);
  color: var(--on-background);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

select, input, button {
  font-family: inherit;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--surface-variant);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--outline);
}

/* ==========================================================================
   LAYOUT STRUCTURE
   ========================================================================== */
.app-container {
  display: flex;
  flex: 1;
  height: calc(100vh - 64px);
  position: relative;
}

.main-content {
  flex: 1;
  padding: 24px;
  overflow-y: auto;
  background-color: var(--background-color);
}

/* ==========================================================================
   APP BAR (HEADER)
   ========================================================================== */
.app-bar {
  height: 64px;
  background-color: var(--surface-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  border-bottom: 1px solid var(--surface-variant);
  z-index: 100;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.app-bar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  font-size: 28px;
  color: var(--primary-color);
  background-color: var(--primary-container);
  padding: 6px;
  border-radius: var(--radius-md);
}

.brand-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary-color);
  line-height: 1.1;
}

.brand-subtitle {
  font-size: 0.75rem;
  color: var(--on-surface-variant);
}

.app-bar-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Role Selector Component */
.role-selector-container {
  display: flex;
  align-items: center;
  background-color: var(--surface-variant);
  padding: 6px 12px;
  border-radius: var(--radius-xl);
  gap: 8px;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}

.role-selector-container:focus-within {
  border-color: var(--primary-color);
  background-color: #ffffff;
}

.role-icon {
  color: var(--on-surface-variant);
  font-size: 20px;
}

.role-select {
  border: none;
  background: transparent;
  font-size: 0.875rem;
  color: var(--on-background);
  font-weight: 500;
  outline: none;
  cursor: pointer;
  padding-right: 8px;
}

.role-badge {
  font-size: 0.75rem;
  background-color: var(--primary-color);
  color: var(--on-primary);
  padding: 2px 8px;
  border-radius: var(--radius-xs);
  font-weight: 600;
  transition: all 0.3s ease;
}

.role-badge.seksan {
  background-color: var(--tertiary-color);
}

/* ==========================================================================
   NAVIGATION DRAWER (SIDEBAR)
   ========================================================================== */
.nav-drawer {
  width: 280px;
  background-color: var(--surface-color);
  border-right: 1px solid var(--surface-variant);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 16px 12px;
}

.nav-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  text-decoration: none;
  color: var(--on-surface-variant);
  font-weight: 500;
  font-size: 0.95rem;
  border-radius: var(--radius-xl);
  transition: all 0.2s ease;
}

.nav-item:hover {
  background-color: var(--surface-variant);
  color: var(--on-surface);
}

.nav-item.active {
  background-color: var(--primary-container);
  color: var(--on-primary-container);
  font-weight: 600;
}

.nav-item .material-symbols-rounded {
  font-size: 22px;
}

.nav-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--surface-variant);
  margin-top: auto;
}

.copyright {
  font-size: 0.75rem;
  color: var(--on-surface-variant);
  font-weight: 500;
}

.copyright-sub {
  font-size: 0.7rem;
  color: var(--outline);
}

/* ==========================================================================
   PANEL BASE & HEADERS
   ========================================================================== */
.content-panel {
  display: none;
  animation: fadeIn 0.3s ease-in-out forwards;
}

.content-panel.active {
  display: block;
}

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

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.panel-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--on-background);
}

.panel-subtitle {
  font-size: 0.875rem;
  color: var(--on-surface-variant);
  margin-top: 4px;
}

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

.filter-group {
  display: flex;
  gap: 8px;
  background-color: var(--surface-variant);
  padding: 4px;
  border-radius: var(--radius-md);
}

/* ==========================================================================
   MATERIAL BUTTONS
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  padding: 0 24px;
  border-radius: var(--radius-xl);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  white-space: nowrap;
}

.btn-filled {
  background-color: var(--primary-color);
  color: var(--on-primary);
}

.btn-filled:hover {
  background-color: #533C8A;
  box-shadow: var(--elevation-1);
}

.btn-filled:active {
  background-color: #3F2375;
}

.btn-outlined {
  background-color: transparent;
  color: var(--primary-color);
  border: 1px solid var(--outline);
}

.btn-outlined:hover {
  background-color: rgba(103, 80, 164, 0.08);
  border-color: var(--primary-color);
}

.btn-text {
  background-color: transparent;
  color: var(--primary-color);
  padding: 0 12px;
}

.btn-text:hover {
  background-color: rgba(103, 80, 164, 0.08);
}

.btn-icon-only {
  width: 40px;
  padding: 0;
  border-radius: 50%;
  color: var(--on-surface-variant);
}

.btn-icon-only:hover {
  background-color: var(--surface-variant);
  color: var(--on-surface);
}

.btn-danger {
  color: var(--color-error);
}

.btn-danger:hover {
  background-color: var(--color-error-container);
}

.full-width {
  width: 100%;
}

/* Hide control panels if role is SEKSAN (Supervisor view) */
body.role-seksan .edit-control {
  display: none !important;
}

/* ==========================================================================
   METRIC CARDS (DASHBOARD)
   ========================================================================== */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.metric-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 16px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--surface-variant);
}

.metric-card::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background-color: transparent;
}

.metric-card:hover {
  box-shadow: var(--elevation-1);
}

.metric-card-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}

.metric-card-icon .material-symbols-rounded {
  font-size: 22px;
}

/* Icon thematic backgrounds */
.prim-bg { background-color: var(--primary-container); color: var(--on-primary-container); }
.sec-bg { background-color: var(--secondary-container); color: var(--on-secondary-container); }
.warn-bg { background-color: var(--color-warning-container); color: var(--color-warning); }
.info-bg { background-color: var(--color-error-container); color: var(--color-error); }

.metric-card-content {
  margin-bottom: 8px;
}

.metric-label {
  font-size: 0.85rem;
  color: var(--on-surface-variant);
  font-weight: 500;
}

.metric-value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
  margin-top: 2px;
}

.metric-trend {
  font-size: 0.75rem;
  font-weight: 500;
}

.green-text { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-danger { color: var(--color-error); }

/* ==========================================================================
   CHARTS GRID
   ========================================================================== */
.charts-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 20px;
  margin-top: 8px;
}

.chart-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 20px;
  border: 1px solid var(--surface-variant);
}

.chart-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--on-surface);
  margin-bottom: 16px;
}

.chart-container {
  position: relative;
  height: 250px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ==========================================================================
   DATA TABLES
   ========================================================================== */
.table-container {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--surface-variant);
}

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

.data-table th {
  background-color: var(--surface-color);
  color: var(--on-surface-variant);
  padding: 16px;
  font-size: 0.85rem;
  font-weight: 600;
  border-bottom: 1px solid var(--surface-variant);
}

.data-table td {
  padding: 16px;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--surface-variant);
  color: var(--on-surface);
}

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

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

.data-table tbody tr:last-child td {
  border-bottom: none;
}

/* Table Empty state */
.table-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
  text-align: center;
}

.empty-icon {
  font-size: 48px;
  color: var(--outline);
  margin-bottom: 12px;
}

.empty-text {
  font-size: 1rem;
  font-weight: 600;
  color: var(--on-surface);
}

.empty-sub {
  font-size: 0.825rem;
  color: var(--on-surface-variant);
  margin-top: 4px;
}

.hidden {
  display: none !important;
}

/* ==========================================================================
   BADGES & STATUS LABELS
   ========================================================================== */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-xl);
  font-size: 0.775rem;
  font-weight: 600;
}

.status-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  display: inline-block;
}

.status-ready {
  background-color: var(--color-success-container);
  color: var(--color-success);
}
.status-ready .dot {
  background-color: var(--color-success);
}

.status-notready {
  background-color: var(--color-error-container);
  color: var(--color-error);
}
.status-notready .dot {
  background-color: var(--color-error);
}

/* Expired item highlight styling */
.warranty-badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.775rem;
  font-weight: 500;
  padding: 2px 6px;
  border-radius: var(--radius-xs);
  margin-top: 4px;
}

.warranty-ok {
  background-color: var(--surface-color);
  color: var(--on-surface-variant);
}

.warranty-expired {
  background-color: var(--color-error-container);
  color: var(--color-error);
  font-weight: 600;
  animation: pulse 2s infinite alternate;
}

.warranty-expiring-soon {
  background-color: var(--color-warning-container);
  color: var(--color-warning);
  font-weight: 600;
}

@keyframes pulse {
  from { opacity: 0.85; }
  to { opacity: 1; }
}

.tr-expired {
  background-color: rgba(179, 38, 30, 0.02);
}
.tr-expired:hover {
  background-color: rgba(179, 38, 30, 0.05) !important;
}

/* ==========================================================================
   FORM & INPUTS STYLING
   ========================================================================== */
.form-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group-field.full-width {
  grid-column: span 2;
}

.input-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--on-surface-variant);
}

.input-label .required {
  color: var(--color-error);
}

.text-input, .select-field {
  height: 48px;
  border: 1px solid var(--outline);
  background-color: transparent;
  border-radius: var(--radius-sm);
  padding: 0 16px;
  font-size: 0.95rem;
  color: var(--on-surface);
  transition: all 0.2s ease;
  outline: none;
}

.text-input:focus, .select-field:focus {
  border-color: var(--primary-color);
  border-width: 2px;
  background-color: #ffffff;
}

.text-input::placeholder {
  color: var(--outline);
  opacity: 0.6;
}

.input-helper {
  font-size: 0.725rem;
  color: var(--outline);
  margin-top: 2px;
}

/* Header/inline select overrides */
select.select-field {
  height: 36px;
  padding: 0 32px 0 12px;
  font-size: 0.825rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--outline);
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%2349454F'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  background-size: 16px;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-color: #ffffff;
}

select.select-field:focus {
  border-width: 1px;
}

/* ==========================================================================
   FISCAL LAYOUT
   ========================================================================== */
.fiscal-layout {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 24px;
}

@media (max-width: 768px) {
  .fiscal-layout {
    grid-template-columns: 1fr;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
  .form-group-field.full-width {
    grid-column: span 1;
  }
}

.fiscal-card-form, .fiscal-card-list {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid var(--surface-variant);
}

.card-form-title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--on-surface);
}

.fiscal-years-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.fiscal-year-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background-color: var(--surface-color);
  border-radius: var(--radius-md);
  border: 1px solid var(--surface-variant);
  transition: all 0.2s ease;
}

.fiscal-year-item:hover {
  background-color: var(--surface-variant);
}

.fiscal-year-name {
  font-weight: 600;
  color: var(--on-surface);
}

.fiscal-year-stats {
  font-size: 0.775rem;
  color: var(--on-surface-variant);
  background-color: #ffffff;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--surface-variant);
}

/* ==========================================================================
   DIALOG / MODAL DIALOGS
   ========================================================================== */
.dialog-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.dialog-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.dialog {
  background-color: #ffffff;
  border-radius: var(--radius-xl);
  width: 90%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(20px);
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
}

.dialog-overlay.open .dialog {
  transform: translateY(0);
}

.dialog-header {
  padding: 24px 24px 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--surface-variant);
}

.dialog-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--on-surface);
}

.dialog-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 12px;
}

/* ==========================================================================
   TOAST NOTIFICATION ALERT
   ========================================================================== */
.toast-container {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  background-color: var(--on-surface);
  color: var(--surface-color);
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  box-shadow: var(--elevation-2);
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 300px;
  font-size: 0.875rem;
  font-weight: 500;
  pointer-events: auto;
  animation: slideUp 0.3s cubic-bezier(0, 0, 0.2, 1) forwards;
}

@keyframes slideUp {
  from { transform: translateY(100px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.toast.toast-error {
  background-color: var(--color-error);
  color: #ffffff;
}

.toast.toast-success {
  background-color: var(--color-success);
  color: #ffffff;
}

.toast-icon {
  font-size: 20px;
}

/* ==========================================================================
   ELEVATION SHADOW UTILITIES
   ========================================================================== */
.elevation-1 { box-shadow: var(--elevation-1); }
.elevation-2 { box-shadow: var(--elevation-2); }
.elevation-3 { box-shadow: var(--elevation-3); }

/* Dashboard Grid Layout Responsive */
@media (max-width: 992px) {
  .dashboard-grid-layout {
    grid-template-columns: 1fr !important;
  }
}