/* ===== GLOBAL STYLES - Material Design 3 Inspired ===== */

/* CSS Variables for theming */
:root {
  /* Light theme colors */
  --md-primary: #6750a4;
  --md-primary-container: #eaddff;
  --md-on-primary: #ffffff;
  --md-on-primary-container: #21005e;
  
  --md-secondary: #625b71;
  --md-secondary-container: #e8def8;
  --md-on-secondary: #ffffff;
  --md-on-secondary-container: #1e192b;
  
  --md-tertiary: #7d5260;
  --md-tertiary-container: #ffd8e4;
  --md-on-tertiary: #ffffff;
  --md-on-tertiary-container: #31111d;
  
  --md-surface: #fffbfe;
  --md-surface-container: #f3f2f3;
  --md-surface-container-high: #ece6f0;
  --md-surface-container-highest: #e6e0e9;
  --md-on-surface: #1c1b1f;
  --md-on-surface-variant: #49454f;
  
  --md-outline: #79747e;
  --md-outline-variant: #cac4d0;
  
  --md-error: #ba1a1a;
  --md-error-container: #ffdad6;
  --md-on-error: #ffffff;
  --md-on-error-container: #410002;
  
  --md-success: #006c4c;
  --md-success-container: #89f8d7;
  --md-on-success: #ffffff;
  --md-on-success-container: #002114;
  
  --md-warning: #b95000;
  --md-warning-container: #ffdcc2;
  --md-on-warning: #ffffff;
  --md-on-warning-container: #3e1400;
  
  --md-info: #0061a4;
  --md-info-container: #cce5ff;
  --md-on-info: #ffffff;
  --md-on-info-container: #001d36;
  
  /* Elevation shadows */
  --md-elevation-1: 0 1px 3px 1px rgba(0, 0, 0, 0.15), 0 1px 2px 0 rgba(0, 0, 0, 0.30);
  --md-elevation-2: 0 1px 2px 0 rgba(0, 0, 0, 0.30), 0 1px 3px 1px rgba(0, 0, 0, 0.15);
  --md-elevation-3: 0 1px 3px 0 rgba(0, 0, 0, 0.30), 0 4px 8px 3px rgba(0, 0, 0, 0.15);
  --md-elevation-4: 0 2px 3px 0 rgba(0, 0, 0, 0.30), 0 6px 10px 4px rgba(0, 0, 0, 0.15);
  --md-elevation-5: 0 4px 4px 0 rgba(0, 0, 0, 0.30), 0 8px 12px 6px rgba(0, 0, 0, 0.15);
  
  /* Typography */
  --md-font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --md-font-size-small: 0.875rem;
  --md-font-size-medium: 1rem;
  --md-font-size-large: 1.125rem;
  --md-font-size-xlarge: 1.25rem;
  --md-font-size-xxlarge: 1.5rem;
  --md-font-size-display: 2rem;
  
  /* Spacing */
  --md-spacing-xs: 0.25rem;
  --md-spacing-sm: 0.5rem;
  --md-spacing-md: 1rem;
  --md-spacing-lg: 1.5rem;
  --md-spacing-xl: 2rem;
  --md-spacing-xxl: 3rem;
  
  /* Border radius */
  --md-radius-sm: 0.25rem;
  --md-radius-md: 0.5rem;
  --md-radius-lg: 1rem;
  --md-radius-xl: 1.5rem;
  --md-radius-full: 9999px;
  
  /* Transitions */
  --md-transition-fast: 0.1s ease;
  --md-transition-medium: 0.2s ease;
  --md-transition-slow: 0.3s ease;
}

/* Dark theme */
[data-theme="dark"] {
  --md-primary: #d0bcff;
  --md-primary-container: #4f378b;
  --md-on-primary: #371e73;
  --md-on-primary-container: #eaddff;
  
  --md-secondary: #ccc2dc;
  --md-secondary-container: #4a4458;
  --md-on-secondary: #332d41;
  --md-on-secondary-container: #e8def8;
  
  --md-tertiary: #efb8c8;
  --md-tertiary-container: #633b48;
  --md-on-tertiary: #492532;
  --md-on-tertiary-container: #ffd8e4;
  
  --md-surface: #1c1b1f;
  --md-surface-container: #211f26;
  --md-surface-container-high: #2b2930;
  --md-surface-container-highest: #36343b;
  --md-on-surface: #e6e1e5;
  --md-on-surface-variant: #cac4d0;
  
  --md-outline: #938f99;
  --md-outline-variant: #49454f;
  
  --md-error: #ffb4ab;
  --md-error-container: #93000a;
  --md-on-error: #690005;
  --md-on-error-container: #ffdad6;
  
  --md-success: #6cffb8;
  --md-success-container: #005138;
  --md-on-success: #003826;
  --md-on-success-container: #89f8d7;
  
  --md-warning: #ffb77d;
  --md-warning-container: #8f3900;
  --md-on-warning: #4d1f00;
  --md-on-warning-container: #ffdcc2;
  
  --md-info: #99cbff;
  --md-info-container: #004881;
  --md-on-info: #003258;
  --md-on-info-container: #cce5ff;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--md-font-family);
  font-size: var(--md-font-size-medium);
  line-height: 1.5;
  color: var(--md-on-surface);
  background-color: var(--md-surface);
  transition: background-color var(--md-transition-medium), color var(--md-transition-medium);
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--md-spacing-md);
  color: var(--md-on-surface);
}

h1 { font-size: var(--md-font-size-display); }
h2 { font-size: var(--md-font-size-xxlarge); }
h3 { font-size: var(--md-font-size-xlarge); }
h4 { font-size: var(--md-font-size-large); }
h5 { font-size: var(--md-font-size-medium); }
h6 { font-size: var(--md-font-size-small); }

p {
  margin-bottom: var(--md-spacing-md);
  color: var(--md-on-surface-variant);
}

/* Layout */
#root {
  display: flex;
  min-height: 100vh;
  background-color: var(--md-surface);
}

/* Header/App Bar */
.appbar-floating {
  position: fixed;
  top: var(--md-spacing-md);
  left: var(--md-spacing-md);
  right: var(--md-spacing-md);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--md-spacing-md) var(--md-spacing-lg);
  background-color: var(--md-surface-container);
  border-radius: var(--md-radius-lg);
  box-shadow: var(--md-elevation-2);
  backdrop-filter: blur(20px);
  border: 1px solid var(--md-outline-variant);
}

.appbar-left {
  display: flex;
  align-items: center;
  gap: var(--md-spacing-md);
}

.appbar-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--md-primary), var(--md-secondary));
  border-radius: var(--md-radius-md);
  color: var(--md-on-primary);
}

.appbar-title {
  font-size: var(--md-font-size-large);
  font-weight: 600;
  color: var(--md-on-surface);
}

.appbar-actions {
  display: flex;
  align-items: center;
  gap: var(--md-spacing-md);
}

.appbar-dev-note {
  font-size: var(--md-font-size-small);
  color: var(--md-on-surface-variant);
  font-style: italic;
}

.appbar-cache-btn,
.appbar-theme-btn,
.appbar-tg-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--md-surface-container-high);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-radius-md);
  color: var(--md-on-surface);
  cursor: pointer;
  transition: all var(--md-transition-medium);
  text-decoration: none;
}

.appbar-cache-btn:hover,
.appbar-theme-btn:hover,
.appbar-tg-btn:hover {
  background-color: var(--md-surface-container-highest);
  transform: translateY(-1px);
  box-shadow: var(--md-elevation-1);
}

/* Sidebar */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: 280px;
  height: 100vh;
  background-color: var(--md-surface-container);
  border-right: 1px solid var(--md-outline-variant);
  padding: calc(80px + var(--md-spacing-lg)) var(--md-spacing-lg) var(--md-spacing-lg);
  overflow-y: auto;
  z-index: 100;
}

#menu {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--md-spacing-xs);
}

#menu li {
  display: flex;
  align-items: center;
  padding: var(--md-spacing-md) var(--md-spacing-lg);
  border-radius: var(--md-radius-lg);
  cursor: pointer;
  transition: all var(--md-transition-medium);
  color: var(--md-on-surface-variant);
  font-weight: 500;
  position: relative;
  overflow: hidden;
}

#menu li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0;
  background-color: var(--md-primary);
  transition: width var(--md-transition-medium);
}

#menu li:hover {
  background-color: var(--md-surface-container-high);
  color: var(--md-on-surface);
  transform: translateX(4px);
}

#menu li.active {
  background-color: var(--md-primary-container);
  color: var(--md-on-primary-container);
}

#menu li.active::before {
  width: 4px;
}

#menu li svg {
  margin-right: var(--md-spacing-md);
  flex-shrink: 0;
}

/* Main content */
#content {
  flex: 1;
  margin-left: 280px;
  margin-top: calc(80px + var(--md-spacing-lg));
  padding: var(--md-spacing-xl);
  min-height: calc(100vh - 80px - var(--md-spacing-lg));
}

/* Common components */
.card {
  background-color: var(--md-surface-container);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-radius-lg);
  padding: var(--md-spacing-xl);
  box-shadow: var(--md-elevation-1);
  transition: all var(--md-transition-medium);
}

.card:hover {
  box-shadow: var(--md-elevation-2);
  transform: translateY(-2px);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--md-spacing-lg);
  padding-bottom: var(--md-spacing-md);
  border-bottom: 1px solid var(--md-outline-variant);
}

.card-title {
  font-size: var(--md-font-size-xlarge);
  font-weight: 600;
  color: var(--md-on-surface);
  display: flex;
  align-items: center;
  gap: var(--md-spacing-md);
}

.card-subtitle {
  font-size: var(--md-font-size-small);
  color: var(--md-on-surface-variant);
  margin-top: var(--md-spacing-xs);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--md-spacing-sm);
  padding: var(--md-spacing-md) var(--md-spacing-lg);
  border: none;
  border-radius: var(--md-radius-lg);
  font-family: inherit;
  font-size: var(--md-font-size-medium);
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--md-transition-medium);
  position: relative;
  overflow: hidden;
  min-height: 48px;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background-color: currentColor;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
  opacity: 0.1;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn:active {
  transform: scale(0.98);
}

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

.btn-primary:hover {
  background-color: var(--md-primary);
  box-shadow: var(--md-elevation-2);
}

.btn-secondary {
  background-color: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
}

.btn-secondary:hover {
  background-color: var(--md-secondary-container);
  box-shadow: var(--md-elevation-1);
}

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

.btn-outline:hover {
  background-color: var(--md-primary);
  color: var(--md-on-primary);
}

.btn-ghost {
  background-color: transparent;
  color: var(--md-on-surface-variant);
}

.btn-ghost:hover {
  background-color: var(--md-surface-container-high);
  color: var(--md-on-surface);
}

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

.btn-danger:hover {
  background-color: var(--md-error);
  box-shadow: var(--md-elevation-2);
}

.btn-success {
  background-color: var(--md-success);
  color: var(--md-on-success);
}

.btn-success:hover {
  background-color: var(--md-success);
  box-shadow: var(--md-elevation-2);
}

.btn-warning {
  background-color: var(--md-warning);
  color: var(--md-on-warning);
}

.btn-warning:hover {
  background-color: var(--md-warning);
  box-shadow: var(--md-elevation-2);
}

.btn-info {
  background-color: var(--md-info);
  color: var(--md-on-info);
}

.btn-info:hover {
  background-color: var(--md-info);
  box-shadow: var(--md-elevation-2);
}

.btn-sm {
  padding: var(--md-spacing-sm) var(--md-spacing-md);
  font-size: var(--md-font-size-small);
  min-height: 36px;
}

.btn-lg {
  padding: var(--md-spacing-lg) var(--md-spacing-xl);
  font-size: var(--md-font-size-large);
  min-height: 56px;
}

.btn-full {
  width: 100%;
}

.btn-icon {
  width: 48px;
  height: 48px;
  padding: 0;
  border-radius: var(--md-radius-md);
}

.btn-icon.btn-sm {
  width: 40px;
  height: 40px;
  padding: 8px;
}

.btn-icon svg {
  width: 24px !important;
  height: 24px !important;
  display: block;
  max-width: none;
  max-height: none;
}

.btn-icon.btn-lg {
  width: 56px;
  height: 56px;
}

/* Form elements */
.form-group {
  margin-bottom: var(--md-spacing-lg);
}

.form-label {
  display: block;
  font-size: var(--md-font-size-small);
  font-weight: 500;
  color: var(--md-on-surface);
  margin-bottom: var(--md-spacing-sm);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--md-spacing-md);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-radius-md);
  background-color: var(--md-surface);
  color: var(--md-on-surface);
  font-family: inherit;
  font-size: var(--md-font-size-medium);
  transition: all var(--md-transition-medium);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--md-primary);
  box-shadow: 0 0 0 3px rgba(103, 80, 164, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--md-on-surface-variant);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-select {
  cursor: pointer;
}

/* File upload */
.file-upload {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--md-spacing-xxl);
  border: 2px dashed var(--md-outline-variant);
  border-radius: var(--md-radius-lg);
  background-color: var(--md-surface-container-high);
  transition: all var(--md-transition-medium);
  cursor: pointer;
  min-height: 200px;
}

.file-upload:hover {
  border-color: var(--md-primary);
  background-color: var(--md-primary-container);
}

.file-upload.dragover {
  border-color: var(--md-primary);
  background-color: var(--md-primary-container);
  transform: scale(1.02);
}

.file-upload input[type="file"] {
  position: absolute;
  opacity: 0;
  width: 100%;
  height: 100%;
  cursor: pointer;
}

.file-upload-icon {
  font-size: 3rem;
  color: var(--md-on-surface-variant);
  margin-bottom: var(--md-spacing-md);
}

.file-upload-text {
  text-align: center;
  color: var(--md-on-surface-variant);
}

.file-upload-text strong {
  color: var(--md-primary);
}

/* Alerts */
.alert {
  padding: var(--md-spacing-md) var(--md-spacing-lg);
  border-radius: var(--md-radius-md);
  margin-bottom: var(--md-spacing-lg);
  display: flex;
  align-items: flex-start;
  gap: var(--md-spacing-md);
  border-left: 4px solid;
}

.alert-info {
  background-color: var(--md-info-container);
  color: var(--md-on-info-container);
  border-left-color: var(--md-info);
}

.alert-success {
  background-color: var(--md-success-container);
  color: var(--md-on-success-container);
  border-left-color: var(--md-success);
}

.alert-warning {
  background-color: var(--md-warning-container);
  color: var(--md-on-warning-container);
  border-left-color: var(--md-warning);
}

.alert-error {
  background-color: var(--md-error-container);
  color: var(--md-on-error-container);
  border-left-color: var(--md-error);
}

/* Loading states */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--md-outline-variant);
  border-radius: 50%;
  border-top-color: var(--md-primary);
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  backdrop-filter: blur(4px);
}

.loading-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--md-outline-variant);
  border-radius: 50%;
  border-top-color: var(--md-primary);
  animation: spin 1s ease-in-out infinite;
}

/* Grid system */
.grid {
  display: grid;
  gap: var(--md-spacing-lg);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Flexbox utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-start { justify-content: flex-start; }
.justify-end { justify-content: flex-end; }
.gap-sm { gap: var(--md-spacing-sm); }
.gap-md { gap: var(--md-spacing-md); }
.gap-lg { gap: var(--md-spacing-lg); }

/* Spacing utilities */
.mt-sm { margin-top: var(--md-spacing-sm); }
.mt-md { margin-top: var(--md-spacing-md); }
.mt-lg { margin-top: var(--md-spacing-lg); }
.mb-sm { margin-bottom: var(--md-spacing-sm); }
.mb-md { margin-bottom: var(--md-spacing-md); }
.mb-lg { margin-bottom: var(--md-spacing-lg); }
.ml-sm { margin-left: var(--md-spacing-sm); }
.ml-md { margin-left: var(--md-spacing-md); }
.ml-lg { margin-left: var(--md-spacing-lg); }
.mr-sm { margin-right: var(--md-spacing-sm); }
.mr-md { margin-right: var(--md-spacing-md); }
.mr-lg { margin-right: var(--md-spacing-lg); }

.p-sm { padding: var(--md-spacing-sm); }
.p-md { padding: var(--md-spacing-md); }
.p-lg { padding: var(--md-spacing-lg); }

/* Text utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-sm { font-size: var(--md-font-size-small); }
.text-md { font-size: var(--md-font-size-medium); }
.text-lg { font-size: var(--md-font-size-large); }
.text-muted { color: var(--md-on-surface-variant); }

/* Responsive design */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform var(--md-transition-medium);
  }
  
  .sidebar.open {
    transform: translateX(0);
  }
  
  #content {
    margin-left: 0;
    padding: var(--md-spacing-md);
  }
  
  .appbar-floating {
    left: var(--md-spacing-sm);
    right: var(--md-spacing-sm);
  }
  
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--md-surface-container);
}

::-webkit-scrollbar-thumb {
  background: var(--md-outline-variant);
  border-radius: var(--md-radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--md-outline);
}

/* Focus styles for accessibility */
*:focus {
  outline: 2px solid var(--md-primary);
  outline-offset: 2px;
}

/* Print styles */
@media print {
  .appbar-floating,
  .sidebar {
    display: none;
  }
  
  #content {
    margin-left: 0;
    padding: 0;
  }
}