/**
 * AIC Framework - Material Design Theme System
 * Comprehensive Material Design 3.0 implementation with theming support
 * Version: 1.0.0
 */

/* ================================================
   CSS CUSTOM PROPERTIES - MATERIAL DESIGN TOKENS
   ================================================ */

:root {
  /* === Material Design Color System === */
  /* Primary Colors */
  --md-primary-10: #000b57;
  --md-primary-20: #001e92;
  --md-primary-30: #0842a0;
  --md-primary-40: #2e68cc;
  --md-primary-50: #4285f4;
  --md-primary-60: #669df6;
  --md-primary-70: #8ab4f8;
  --md-primary-80: #aecbfa;
  --md-primary-90: #d2e3fc;
  --md-primary-95: #e8f0fe;
  --md-primary-99: #fefbff;

  /* Secondary Colors */
  --md-secondary-10: #1a1c2e;
  --md-secondary-20: #2f3042;
  --md-secondary-30: #454859;
  --md-secondary-40: #5d6071;
  --md-secondary-50: #76798b;
  --md-secondary-60: #9092a5;
  --md-secondary-70: #acacc0;
  --md-secondary-80: #c8c7dc;
  --md-secondary-90: #e4e3f9;
  --md-secondary-95: #f2f1ff;
  --md-secondary-99: #fefbff;

  /* Tertiary Colors */
  --md-tertiary-10: #2d132d;
  --md-tertiary-20: #442843;
  --md-tertiary-30: #5c3e5a;
  --md-tertiary-40: #755672;
  --md-tertiary-50: #8f6f8c;
  --md-tertiary-60: #aa89a6;
  --md-tertiary-70: #c6a3c2;
  --md-tertiary-80: #e2bfde;
  --md-tertiary-90: #ffdbfa;
  --md-tertiary-95: #ffedfc;
  --md-tertiary-99: #fffbff;

  /* Neutral Colors */
  --md-neutral-0: #000000;
  --md-neutral-10: #1a1c1e;
  --md-neutral-20: #2f3033;
  --md-neutral-25: #3a3d40;
  --md-neutral-30: #464a4d;
  --md-neutral-35: #52565a;
  --md-neutral-40: #5e6267;
  --md-neutral-50: #76797d;
  --md-neutral-60: #909296;
  --md-neutral-70: #ababaf;
  --md-neutral-80: #c7c6ca;
  --md-neutral-87: #dde1e6;
  --md-neutral-90: #e3e2e6;
  --md-neutral-95: #f1f0f4;
  --md-neutral-99: #fefbff;
  --md-neutral-100: #ffffff;

  /* Neutral Variant Colors */
  --md-neutral-variant-30: #44474e;
  --md-neutral-variant-50: #74777f;
  --md-neutral-variant-60: #8e9199;
  --md-neutral-variant-80: #c4c6cf;
  --md-neutral-variant-90: #e0e2ec;

  /* Error Colors */
  --md-error-10: #410e0b;
  --md-error-20: #601410;
  --md-error-30: #8c1d18;
  --md-error-40: #b3261e;
  --md-error-50: #dc362e;
  --md-error-60: #e46962;
  --md-error-70: #ec928e;
  --md-error-80: #f2b8b5;
  --md-error-90: #f9dedc;
  --md-error-95: #fceeee;
  --md-error-99: #fffbf9;

  /* Success Colors */
  --md-success-10: #002114;
  --md-success-20: #003919;
  --md-success-30: #00531b;
  --md-success-40: #146c2e;
  --md-success-50: #2e7d32;
  --md-success-60: #4caf50;
  --md-success-70: #6fbf73;
  --md-success-80: #81c995;
  --md-success-90: #c8e6c9;
  --md-success-95: #e8f5e8;
  --md-success-99: #f9fff9;

  /* Warning Colors */
  --md-warning-10: #251a00;
  --md-warning-20: #3e2e00;
  --md-warning-30: #5a4300;
  --md-warning-40: #785900;
  --md-warning-50: #996f00;
  --md-warning-60: #b8860b;
  --md-warning-70: #d4a32a;
  --md-warning-80: #f0c052;
  --md-warning-90: #fce588;
  --md-warning-95: #fef2c7;
  --md-warning-99: #fffbf2;

  /* === Light Theme Color Mappings === */
  --md-surface: var(--md-neutral-99);
  --md-surface-dim: var(--md-neutral-87);
  --md-surface-bright: var(--md-neutral-99);
  --md-surface-container-lowest: var(--md-neutral-100);
  --md-surface-container-low: var(--md-neutral-95);
  --md-surface-container: var(--md-neutral-90);
  --md-surface-container-high: var(--md-neutral-87);
  --md-surface-container-highest: var(--md-neutral-80);
  --md-surface-variant: var(--md-neutral-variant-90);
  --md-inverse-surface: var(--md-neutral-20);

  --md-on-surface: var(--md-neutral-10);
  --md-on-surface-variant: var(--md-neutral-variant-30);
  --md-outline: var(--md-neutral-variant-50);
  --md-outline-variant: var(--md-neutral-variant-80);
  --md-inverse-on-surface: var(--md-neutral-95);

  --md-primary: var(--md-primary-40);
  --md-on-primary: var(--md-neutral-100);
  --md-primary-container: var(--md-primary-90);
  --md-on-primary-container: var(--md-primary-10);
  --md-inverse-primary: var(--md-primary-80);

  --md-secondary: var(--md-secondary-40);
  --md-on-secondary: var(--md-neutral-100);
  --md-secondary-container: var(--md-secondary-90);
  --md-on-secondary-container: var(--md-secondary-10);

  --md-tertiary: var(--md-tertiary-40);
  --md-on-tertiary: var(--md-neutral-100);
  --md-tertiary-container: var(--md-tertiary-90);
  --md-on-tertiary-container: var(--md-tertiary-10);

  --md-error: var(--md-error-40);
  --md-on-error: var(--md-neutral-100);
  --md-error-container: var(--md-error-90);
  --md-on-error-container: var(--md-error-10);

  --md-success: var(--md-success-40);
  --md-on-success: var(--md-neutral-100);
  --md-success-container: var(--md-success-90);
  --md-on-success-container: var(--md-success-10);

  --md-warning: var(--md-warning-40);
  --md-on-warning: var(--md-neutral-100);
  --md-warning-container: var(--md-warning-90);
  --md-on-warning-container: var(--md-warning-10);

  /* === Typography Scale === */
  --md-display-large-font: 400 57px/64px 'Inter', 'Roboto', sans-serif;
  --md-display-medium-font: 400 45px/52px 'Inter', 'Roboto', sans-serif;
  --md-display-small-font: 400 36px/44px 'Inter', 'Roboto', sans-serif;

  --md-headline-large-font: 400 32px/40px 'Inter', 'Roboto', sans-serif;
  --md-headline-medium-font: 400 28px/36px 'Inter', 'Roboto', sans-serif;
  --md-headline-small-font: 400 24px/32px 'Inter', 'Roboto', sans-serif;

  --md-title-large-font: 400 22px/28px 'Inter', 'Roboto', sans-serif;
  --md-title-medium-font: 500 16px/24px 'Inter', 'Roboto', sans-serif;
  --md-title-small-font: 500 14px/20px 'Inter', 'Roboto', sans-serif;

  --md-label-large-font: 500 14px/20px 'Inter', 'Roboto', sans-serif;
  --md-label-medium-font: 500 12px/16px 'Inter', 'Roboto', sans-serif;
  --md-label-small-font: 500 11px/16px 'Inter', 'Roboto', sans-serif;

  --md-body-large-font: 400 16px/24px 'Inter', 'Roboto', sans-serif;
  --md-body-medium-font: 400 14px/20px 'Inter', 'Roboto', sans-serif;
  --md-body-small-font: 400 12px/16px 'Inter', 'Roboto', sans-serif;

  /* === Spacing Scale === */
  --md-spacing-1: 4px;
  --md-spacing-2: 8px;
  --md-spacing-3: 12px;
  --md-spacing-4: 16px;
  --md-spacing-5: 20px;
  --md-spacing-6: 24px;
  --md-spacing-7: 28px;
  --md-spacing-8: 32px;
  --md-spacing-9: 36px;
  --md-spacing-10: 40px;
  --md-spacing-11: 44px;
  --md-spacing-12: 48px;
  --md-spacing-16: 64px;
  --md-spacing-20: 80px;

  /* === Elevation/Shadow System === */
  --md-elevation-0: none;
  --md-elevation-1: 0 1px 2px 0 rgba(0, 0, 0, 0.3), 0 1px 3px 1px rgba(0, 0, 0, 0.15);
  --md-elevation-2: 0 1px 2px 0 rgba(0, 0, 0, 0.3), 0 2px 6px 2px rgba(0, 0, 0, 0.15);
  --md-elevation-3: 0 1px 3px 0 rgba(0, 0, 0, 0.3), 0 4px 8px 3px rgba(0, 0, 0, 0.15);
  --md-elevation-4: 0 2px 3px 0 rgba(0, 0, 0, 0.3), 0 6px 10px 4px rgba(0, 0, 0, 0.15);
  --md-elevation-5: 0 4px 4px 0 rgba(0, 0, 0, 0.3), 0 8px 12px 6px rgba(0, 0, 0, 0.15);

  /* === Shape/Border Radius === */
  --md-shape-corner-none: 0px;
  --md-shape-corner-extra-small: 4px;
  --md-shape-corner-small: 8px;
  --md-shape-corner-medium: 12px;
  --md-shape-corner-large: 16px;
  --md-shape-corner-extra-large: 28px;
  --md-shape-corner-full: 9999px;

  /* === Motion/Animation === */
  --md-motion-duration-short1: 50ms;
  --md-motion-duration-short2: 100ms;
  --md-motion-duration-short3: 150ms;
  --md-motion-duration-short4: 200ms;
  --md-motion-duration-medium1: 250ms;
  --md-motion-duration-medium2: 300ms;
  --md-motion-duration-medium3: 350ms;
  --md-motion-duration-medium4: 400ms;
  --md-motion-duration-long1: 450ms;
  --md-motion-duration-long2: 500ms;
  --md-motion-duration-long3: 550ms;
  --md-motion-duration-long4: 600ms;

  --md-motion-easing-linear: cubic-bezier(0.0, 0.0, 1.0, 1.0);
  --md-motion-easing-standard: cubic-bezier(0.2, 0.0, 0.0, 1.0);
  --md-motion-easing-standard-accelerate: cubic-bezier(0.3, 0.0, 1.0, 1.0);
  --md-motion-easing-standard-decelerate: cubic-bezier(0.0, 0.0, 0.0, 1.0);
  --md-motion-easing-emphasized: cubic-bezier(0.2, 0.0, 0.0, 1.0);
  --md-motion-easing-emphasized-accelerate: cubic-bezier(0.3, 0.0, 0.8, 0.15);
  --md-motion-easing-emphasized-decelerate: cubic-bezier(0.05, 0.7, 0.1, 1.0);
}

/* === Dark Theme Overrides === */
[data-theme="dark"] {
  --md-surface: var(--md-neutral-10);
  --md-surface-dim: var(--md-neutral-0);
  --md-surface-bright: var(--md-neutral-25);
  --md-surface-container-lowest: var(--md-neutral-0);
  --md-surface-container-low: var(--md-neutral-10);
  --md-surface-container: var(--md-neutral-20);
  --md-surface-container-high: var(--md-neutral-25);
  --md-surface-container-highest: var(--md-neutral-30);
  --md-surface-variant: var(--md-neutral-variant-30);
  --md-inverse-surface: var(--md-neutral-90);

  --md-on-surface: var(--md-neutral-90);
  --md-on-surface-variant: var(--md-neutral-variant-80);
  --md-outline: var(--md-neutral-variant-60);
  --md-outline-variant: var(--md-neutral-variant-30);
  --md-inverse-on-surface: var(--md-neutral-20);

  --md-primary: var(--md-primary-80);
  --md-on-primary: var(--md-primary-20);
  --md-primary-container: var(--md-primary-30);
  --md-on-primary-container: var(--md-primary-90);
  --md-inverse-primary: var(--md-primary-40);

  --md-secondary: var(--md-secondary-80);
  --md-on-secondary: var(--md-secondary-20);
  --md-secondary-container: var(--md-secondary-30);
  --md-on-secondary-container: var(--md-secondary-90);

  --md-tertiary: var(--md-tertiary-80);
  --md-on-tertiary: var(--md-tertiary-20);
  --md-tertiary-container: var(--md-tertiary-30);
  --md-on-tertiary-container: var(--md-tertiary-90);
}

/* ================================================
   FOUNDATIONAL STYLES
   ================================================ */

* {
  box-sizing: border-box;
}

html {
  height: 100%;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  height: 100%;
  font: var(--md-body-medium-font);
  color: var(--md-on-surface);
  background-color: var(--md-surface);
  transition: background-color var(--md-motion-duration-medium2) var(--md-motion-easing-standard);
}

/* ================================================
   TYPOGRAPHY CLASSES
   ================================================ */

.md-display-large { font: var(--md-display-large-font); }
.md-display-medium { font: var(--md-display-medium-font); }
.md-display-small { font: var(--md-display-small-font); }

.md-headline-large { font: var(--md-headline-large-font); }
.md-headline-medium { font: var(--md-headline-medium-font); }
.md-headline-small { font: var(--md-headline-small-font); }

.md-title-large { font: var(--md-title-large-font); }
.md-title-medium { font: var(--md-title-medium-font); }
.md-title-small { font: var(--md-title-small-font); }

.md-label-large { font: var(--md-label-large-font); }
.md-label-medium { font: var(--md-label-medium-font); }
.md-label-small { font: var(--md-label-small-font); }

.md-body-large { font: var(--md-body-large-font); }
.md-body-medium { font: var(--md-body-medium-font); }
.md-body-small { font: var(--md-body-small-font); }

/* ================================================
   SURFACE & CONTAINER SYSTEM
   ================================================ */

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

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

.md-surface-container-lowest {
  background-color: var(--md-surface-container-lowest);
  color: var(--md-on-surface);
}

.md-surface-container-low {
  background-color: var(--md-surface-container-low);
  color: var(--md-on-surface);
}

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

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

.md-surface-container-highest {
  background-color: var(--md-surface-container-highest);
  color: var(--md-on-surface);
}

/* ================================================
   ELEVATION SYSTEM
   ================================================ */

.md-elevation-0 { box-shadow: var(--md-elevation-0); }
.md-elevation-1 { box-shadow: var(--md-elevation-1); }
.md-elevation-2 { box-shadow: var(--md-elevation-2); }
.md-elevation-3 { box-shadow: var(--md-elevation-3); }
.md-elevation-4 { box-shadow: var(--md-elevation-4); }
.md-elevation-5 { box-shadow: var(--md-elevation-5); }

/* ================================================
   CARD COMPONENTS
   ================================================ */

.md-card {
  display: flex;
  flex-direction: column;
  border-radius: var(--md-shape-corner-medium);
  background-color: var(--md-surface-container-low);
  color: var(--md-on-surface);
  transition: all var(--md-motion-duration-medium2) var(--md-motion-easing-standard);
  position: relative;
  overflow: hidden;
}

.md-card-elevated {
  background-color: var(--md-surface-container-low);
  box-shadow: var(--md-elevation-1);
}

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

.md-card-filled {
  background-color: var(--md-surface-container-highest);
}

.md-card-outlined {
  background-color: var(--md-surface);
  border: 1px solid var(--md-outline-variant);
}

.md-card-header {
  padding: var(--md-spacing-4);
  border-bottom: 1px solid var(--md-outline-variant);
}

.md-card-media {
  position: relative;
  background-color: var(--md-surface-variant);
  aspect-ratio: 16/9;
  overflow: hidden;
}

.md-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.md-card-content {
  padding: var(--md-spacing-4);
  flex: 1;
}

.md-card-actions {
  padding: var(--md-spacing-2) var(--md-spacing-4) var(--md-spacing-4);
  display: flex;
  gap: var(--md-spacing-2);
  justify-content: flex-end;
  align-items: center;
}

/* ================================================
   BUTTON COMPONENTS
   ================================================ */

.md-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--md-spacing-2);
  min-height: 40px;
  padding: 0 var(--md-spacing-6);
  border: none;
  border-radius: var(--md-shape-corner-full);
  font: var(--md-label-large-font);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--md-motion-duration-short4) var(--md-motion-easing-standard);
  position: relative;
  overflow: hidden;
  user-select: none;
  white-space: nowrap;
}

.md-button:focus-visible {
  outline: 2px solid var(--md-primary);
  outline-offset: 2px;
}

.md-button:disabled {
  opacity: 0.38;
  cursor: not-allowed;
  pointer-events: none;
}

/* Filled Button */
.md-button-filled {
  background-color: var(--md-primary);
  color: var(--md-on-primary);
}

.md-button-filled:hover {
  box-shadow: var(--md-elevation-1);
  background-color: color-mix(in srgb, var(--md-primary) 92%, var(--md-on-primary));
}

.md-button-filled:active {
  box-shadow: var(--md-elevation-0);
}

/* Outlined Button */
.md-button-outlined {
  background-color: transparent;
  color: var(--md-primary);
  border: 1px solid var(--md-outline);
}

.md-button-outlined:hover {
  background-color: color-mix(in srgb, var(--md-primary) 8%, transparent);
  border-color: var(--md-primary);
}

/* Text Button */
.md-button-text {
  background-color: transparent;
  color: var(--md-primary);
  padding: 0 var(--md-spacing-3);
}

.md-button-text:hover {
  background-color: color-mix(in srgb, var(--md-primary) 8%, transparent);
}

/* Tonal Button */
.md-button-tonal {
  background-color: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
}

.md-button-tonal:hover {
  box-shadow: var(--md-elevation-1);
  background-color: color-mix(in srgb, var(--md-secondary-container) 92%, var(--md-on-secondary-container));
}

/* FAB (Floating Action Button) */
.md-fab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border: none;
  border-radius: var(--md-shape-corner-large);
  background-color: var(--md-primary-container);
  color: var(--md-on-primary-container);
  box-shadow: var(--md-elevation-3);
  cursor: pointer;
  transition: all var(--md-motion-duration-medium2) var(--md-motion-easing-standard);
  font-size: 24px;
}

.md-fab:hover {
  box-shadow: var(--md-elevation-4);
}

.md-fab-small {
  width: 40px;
  height: 40px;
  border-radius: var(--md-shape-corner-medium);
}

.md-fab-large {
  width: 96px;
  height: 96px;
  border-radius: var(--md-shape-corner-extra-large);
}

.md-fab-extended {
  width: auto;
  padding: 0 var(--md-spacing-4);
  gap: var(--md-spacing-2);
  font: var(--md-label-large-font);
}

/* ================================================
   INPUT COMPONENTS
   ================================================ */

.md-textfield {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
}

.md-textfield-input {
  width: 100%;
  padding: var(--md-spacing-4);
  border: 1px solid var(--md-outline);
  border-radius: var(--md-shape-corner-extra-small);
  background-color: var(--md-surface);
  color: var(--md-on-surface);
  font: var(--md-body-large-font);
  transition: all var(--md-motion-duration-short4) var(--md-motion-easing-standard);
}

.md-textfield-input:focus {
  outline: none;
  border-color: var(--md-primary);
  border-width: 2px;
  padding: calc(var(--md-spacing-4) - 1px);
}

.md-textfield-input::placeholder {
  color: var(--md-on-surface-variant);
  opacity: 0.6;
}

.md-textfield-filled .md-textfield-input {
  background-color: var(--md-surface-variant);
  border: none;
  border-bottom: 1px solid var(--md-on-surface-variant);
  border-radius: var(--md-shape-corner-extra-small) var(--md-shape-corner-extra-small) 0 0;
}

.md-textfield-filled .md-textfield-input:focus {
  border-bottom: 2px solid var(--md-primary);
  padding-bottom: calc(var(--md-spacing-4) - 1px);
}

.md-textfield-outlined .md-textfield-input {
  background-color: transparent;
}

.md-textfield-label {
  font: var(--md-body-small-font);
  color: var(--md-on-surface-variant);
  margin-bottom: var(--md-spacing-2);
}

.md-textfield-helper {
  font: var(--md-body-small-font);
  color: var(--md-on-surface-variant);
  margin-top: var(--md-spacing-1);
}

.md-textfield-error .md-textfield-input {
  border-color: var(--md-error);
}

.md-textfield-error .md-textfield-helper {
  color: var(--md-error);
}

/* ================================================
   CHIP COMPONENTS
   ================================================ */

.md-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--md-spacing-2);
  height: 32px;
  padding: 0 var(--md-spacing-4);
  border-radius: var(--md-shape-corner-small);
  font: var(--md-label-medium-font);
  background-color: var(--md-surface-variant);
  color: var(--md-on-surface-variant);
  border: 1px solid var(--md-outline);
  cursor: pointer;
  transition: all var(--md-motion-duration-short4) var(--md-motion-easing-standard);
  user-select: none;
}

.md-chip:hover {
  background-color: color-mix(in srgb, var(--md-on-surface-variant) 8%, var(--md-surface-variant));
}

.md-chip-selected {
  background-color: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
  border-color: transparent;
}

.md-chip-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  margin-left: -var(--md-spacing-2);
}

.md-chip-icon {
  font-size: 18px;
}

.md-chip-trailing-action {
  margin-right: -var(--md-spacing-2);
  padding: var(--md-spacing-1);
  border-radius: 50%;
  background: none;
  border: none;
  cursor: pointer;
  color: inherit;
  transition: background-color var(--md-motion-duration-short4) var(--md-motion-easing-standard);
}

.md-chip-trailing-action:hover {
  background-color: color-mix(in srgb, currentColor 12%, transparent);
}

/* ================================================
   NAVIGATION COMPONENTS
   ================================================ */

.md-navigation-bar {
  display: flex;
  background-color: var(--md-surface-container);
  border-top: 1px solid var(--md-outline-variant);
  padding: var(--md-spacing-1) 0;
}

.md-navigation-tab {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--md-spacing-1);
  padding: var(--md-spacing-3) var(--md-spacing-2);
  border: none;
  background: none;
  color: var(--md-on-surface-variant);
  font: var(--md-label-medium-font);
  cursor: pointer;
  transition: color var(--md-motion-duration-short4) var(--md-motion-easing-standard);
  position: relative;
}

.md-navigation-tab-active {
  color: var(--md-on-surface);
}

.md-navigation-tab-active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 32px;
  height: 2px;
  background-color: var(--md-primary);
  border-radius: var(--md-shape-corner-full);
}

.md-navigation-tab-icon {
  font-size: 24px;
  width: 24px;
  height: 24px;
}

/* ================================================
   DIALOG/MODAL COMPONENTS
   ================================================ */

.md-dialog {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.32);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--md-motion-duration-medium2) var(--md-motion-easing-standard);
}

.md-dialog-open {
  opacity: 1;
  visibility: visible;
}

.md-dialog-container {
  background-color: var(--md-surface-container-high);
  color: var(--md-on-surface);
  border-radius: var(--md-shape-corner-extra-large);
  box-shadow: var(--md-elevation-3);
  min-width: 280px;
  max-width: 560px;
  max-height: 80vh;
  overflow: hidden;
  transform: scale(0.8);
  transition: transform var(--md-motion-duration-medium2) var(--md-motion-easing-emphasized);
}

.md-dialog-open .md-dialog-container {
  transform: scale(1);
}

.md-dialog-header {
  padding: var(--md-spacing-6) var(--md-spacing-6) var(--md-spacing-2);
}

.md-dialog-title {
  font: var(--md-headline-small-font);
  margin: 0;
}

.md-dialog-content {
  padding: 0 var(--md-spacing-6) var(--md-spacing-6);
  font: var(--md-body-medium-font);
  color: var(--md-on-surface-variant);
  overflow-y: auto;
}

.md-dialog-actions {
  padding: var(--md-spacing-2) var(--md-spacing-6) var(--md-spacing-6);
  display: flex;
  justify-content: flex-end;
  gap: var(--md-spacing-2);
}

/* ================================================
   SNACKBAR COMPONENTS
   ================================================ */

.md-snackbar {
  position: fixed;
  bottom: var(--md-spacing-4);
  left: var(--md-spacing-4);
  right: var(--md-spacing-4);
  background-color: var(--md-inverse-surface);
  color: var(--md-inverse-on-surface);
  border-radius: var(--md-shape-corner-extra-small);
  box-shadow: var(--md-elevation-3);
  padding: var(--md-spacing-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--md-spacing-3);
  font: var(--md-body-medium-font);
  z-index: 1100;
  transform: translateY(100%);
  transition: transform var(--md-motion-duration-medium2) var(--md-motion-easing-emphasized);
}

.md-snackbar-show {
  transform: translateY(0);
}

.md-snackbar-message {
  flex: 1;
}

.md-snackbar-action {
  background: none;
  border: none;
  color: var(--md-inverse-primary);
  font: var(--md-label-large-font);
  cursor: pointer;
  padding: var(--md-spacing-2);
  border-radius: var(--md-shape-corner-small);
  transition: background-color var(--md-motion-duration-short4) var(--md-motion-easing-standard);
}

.md-snackbar-action:hover {
  background-color: color-mix(in srgb, var(--md-inverse-primary) 8%, transparent);
}

/* ================================================
   PROGRESS INDICATORS
   ================================================ */

.md-progress-linear {
  width: 100%;
  height: 4px;
  background-color: var(--md-surface-variant);
  border-radius: var(--md-shape-corner-full);
  overflow: hidden;
}

.md-progress-linear-bar {
  height: 100%;
  background-color: var(--md-primary);
  border-radius: var(--md-shape-corner-full);
  transition: width var(--md-motion-duration-medium2) var(--md-motion-easing-standard);
}

.md-progress-linear-indeterminate .md-progress-linear-bar {
  width: 30%;
  animation: md-progress-indeterminate 2s infinite linear;
}

@keyframes md-progress-indeterminate {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(350%); }
}

.md-progress-circular {
  width: 48px;
  height: 48px;
  position: relative;
}

.md-progress-circular svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.md-progress-circular-track {
  fill: none;
  stroke: var(--md-surface-variant);
  stroke-width: 4;
}

.md-progress-circular-bar {
  fill: none;
  stroke: var(--md-primary);
  stroke-width: 4;
  stroke-linecap: round;
  transition: stroke-dashoffset var(--md-motion-duration-medium2) var(--md-motion-easing-standard);
}

/* ================================================
   UTILITY CLASSES
   ================================================ */

/* Spacing */
.md-m-0 { margin: 0; }
.md-m-1 { margin: var(--md-spacing-1); }
.md-m-2 { margin: var(--md-spacing-2); }
.md-m-3 { margin: var(--md-spacing-3); }
.md-m-4 { margin: var(--md-spacing-4); }
.md-m-5 { margin: var(--md-spacing-5); }
.md-m-6 { margin: var(--md-spacing-6); }
.md-m-8 { margin: var(--md-spacing-8); }

.md-p-0 { padding: 0; }
.md-p-1 { padding: var(--md-spacing-1); }
.md-p-2 { padding: var(--md-spacing-2); }
.md-p-3 { padding: var(--md-spacing-3); }
.md-p-4 { padding: var(--md-spacing-4); }
.md-p-5 { padding: var(--md-spacing-5); }
.md-p-6 { padding: var(--md-spacing-6); }
.md-p-8 { padding: var(--md-spacing-8); }

/* Layout */
.md-flex { display: flex; }
.md-flex-column { flex-direction: column; }
.md-flex-wrap { flex-wrap: wrap; }
.md-justify-center { justify-content: center; }
.md-justify-between { justify-content: space-between; }
.md-justify-end { justify-content: flex-end; }
.md-items-center { align-items: center; }
.md-items-start { align-items: flex-start; }
.md-items-end { align-items: flex-end; }

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

.md-gap-1 { gap: var(--md-spacing-1); }
.md-gap-2 { gap: var(--md-spacing-2); }
.md-gap-3 { gap: var(--md-spacing-3); }
.md-gap-4 { gap: var(--md-spacing-4); }
.md-gap-6 { gap: var(--md-spacing-6); }

/* Text */
.md-text-center { text-align: center; }
.md-text-left { text-align: left; }
.md-text-right { text-align: right; }

/* Colors */
.md-text-primary { color: var(--md-primary); }
.md-text-secondary { color: var(--md-secondary); }
.md-text-error { color: var(--md-error); }
.md-text-success { color: var(--md-success); }
.md-text-warning { color: var(--md-warning); }

.md-bg-primary { background-color: var(--md-primary); }
.md-bg-primary-container { background-color: var(--md-primary-container); }
.md-bg-surface { background-color: var(--md-surface); }
.md-bg-surface-variant { background-color: var(--md-surface-variant); }

/* Borders */
.md-border { border: 1px solid var(--md-outline-variant); }
.md-border-none { border: none; }
.md-rounded-none { border-radius: var(--md-shape-corner-none); }
.md-rounded-sm { border-radius: var(--md-shape-corner-small); }
.md-rounded-md { border-radius: var(--md-shape-corner-medium); }
.md-rounded-lg { border-radius: var(--md-shape-corner-large); }
.md-rounded-full { border-radius: var(--md-shape-corner-full); }

/* ================================================
   RESPONSIVE UTILITIES
   ================================================ */

@media (max-width: 600px) {
  .md-grid-cols-sm-1 { grid-template-columns: repeat(1, 1fr); }
  .md-grid-cols-sm-2 { grid-template-columns: repeat(2, 1fr); }
  .md-flex-sm-column { flex-direction: column; }
  .md-text-sm-center { text-align: center; }
}

@media (min-width: 601px) and (max-width: 1024px) {
  .md-grid-cols-md-2 { grid-template-columns: repeat(2, 1fr); }
  .md-grid-cols-md-3 { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1025px) {
  .md-grid-cols-lg-3 { grid-template-columns: repeat(3, 1fr); }
  .md-grid-cols-lg-4 { grid-template-columns: repeat(4, 1fr); }
}

/* ================================================
   DARK MODE TOGGLE UTILITY
   ================================================ */

.theme-toggle {
  background: none;
  border: 1px solid var(--md-outline);
  border-radius: var(--md-shape-corner-full);
  padding: var(--md-spacing-2);
  cursor: pointer;
  color: var(--md-on-surface);
  transition: all var(--md-motion-duration-short4) var(--md-motion-easing-standard);
}

.theme-toggle:hover {
  background-color: var(--md-surface-variant);
  border-color: var(--md-outline-variant);
}

/* ================================================
   ACCESSIBILITY & FOCUS MANAGEMENT
   ================================================ */

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --md-outline: #000000;
    --md-outline-variant: #333333;
  }
  
  [data-theme="dark"] {
    --md-outline: #ffffff;
    --md-outline-variant: #cccccc;
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus ring improvements */
:focus-visible {
  outline: 2px solid var(--md-primary);
  outline-offset: 2px;
}

/* Skip link for accessibility */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--md-primary);
  color: var(--md-on-primary);
  padding: 8px;
  text-decoration: none;
  border-radius: var(--md-shape-corner-small);
  z-index: 2000;
}

.skip-link:focus {
  top: 6px;
}