/*
Theme Name: WP Document Workflow Theme
Theme URI: https://example.com/
Author: Your Team
Description: Material Design 3 theme for WP Document Workflow
Version: 3.0
Text Domain: wp-document-workflow
*/

/* Import Google Fonts - Material Design Typography */
@import url('https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,100;0,300;0,400;0,500;0,700;0,900;1,100;1,300;1,400;1,500;1,700;1,900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@20..48,100..700,0..1,-50..200');

/* Material Design 3 Design Tokens */
:root {
  /* Primary Colors */
  --md-sys-color-primary: #6750A4;
  --md-sys-color-on-primary: #FFFFFF;
  --md-sys-color-primary-container: #EADDFF;
  --md-sys-color-on-primary-container: #21005D;

  /* Secondary Colors */
  --md-sys-color-secondary: #625B71;
  --md-sys-color-on-secondary: #FFFFFF;
  --md-sys-color-secondary-container: #E8DEF8;
  --md-sys-color-on-secondary-container: #1D192B;

  /* Tertiary Colors */
  --md-sys-color-tertiary: #7D5260;
  --md-sys-color-on-tertiary: #FFFFFF;
  --md-sys-color-tertiary-container: #FFD8E4;
  --md-sys-color-on-tertiary-container: #31111D;

  /* Error Colors */
  --md-sys-color-error: #BA1A1A;
  --md-sys-color-on-error: #FFFFFF;
  --md-sys-color-error-container: #FFDAD6;
  --md-sys-color-on-error-container: #410002;

  /* Surface Colors */
  --md-sys-color-surface: #FEF7FF;
  --md-sys-color-on-surface: #1C1B1F;
  --md-sys-color-surface-variant: #E7E0EC;
  --md-sys-color-on-surface-variant: #49454F;
  --md-sys-color-surface-container: #F3EDF7;
  --md-sys-color-surface-container-low: #F7F2FA;
  --md-sys-color-surface-container-lowest: #FFFFFF;
  --md-sys-color-surface-container-high: #ECE6F0;
  --md-sys-color-surface-container-highest: #E6E0E9;

  /* Outline Colors */
  --md-sys-color-outline: #79747E;
  --md-sys-color-outline-variant: #CAC4D0;

  /* Inverse Colors */
  --md-sys-color-inverse-surface: #313033;
  --md-sys-color-inverse-on-surface: #F4EFF4;
  --md-sys-color-inverse-primary: #D0BCFF;

  /* Typography Scale */
  --md-sys-typescale-display-large-font: 'Roboto';
  --md-sys-typescale-display-large-size: 57px;
  --md-sys-typescale-display-large-weight: 400;
  --md-sys-typescale-display-large-line-height: 64px;

  --md-sys-typescale-display-medium-font: 'Roboto';
  --md-sys-typescale-display-medium-size: 45px;
  --md-sys-typescale-display-medium-weight: 400;
  --md-sys-typescale-display-medium-line-height: 52px;

  --md-sys-typescale-display-small-font: 'Roboto';
  --md-sys-typescale-display-small-size: 36px;
  --md-sys-typescale-display-small-weight: 400;
  --md-sys-typescale-display-small-line-height: 44px;

  --md-sys-typescale-headline-large-font: 'Roboto';
  --md-sys-typescale-headline-large-size: 32px;
  --md-sys-typescale-headline-large-weight: 400;
  --md-sys-typescale-headline-large-line-height: 40px;

  --md-sys-typescale-headline-medium-font: 'Roboto';
  --md-sys-typescale-headline-medium-size: 28px;
  --md-sys-typescale-headline-medium-weight: 400;
  --md-sys-typescale-headline-medium-line-height: 36px;

  --md-sys-typescale-headline-small-font: 'Roboto';
  --md-sys-typescale-headline-small-size: 24px;
  --md-sys-typescale-headline-small-weight: 400;
  --md-sys-typescale-headline-small-line-height: 32px;

  --md-sys-typescale-title-large-font: 'Roboto';
  --md-sys-typescale-title-large-size: 22px;
  --md-sys-typescale-title-large-weight: 400;
  --md-sys-typescale-title-large-line-height: 28px;

  --md-sys-typescale-title-medium-font: 'Roboto';
  --md-sys-typescale-title-medium-size: 16px;
  --md-sys-typescale-title-medium-weight: 500;
  --md-sys-typescale-title-medium-line-height: 24px;

  --md-sys-typescale-title-small-font: 'Roboto';
  --md-sys-typescale-title-small-size: 14px;
  --md-sys-typescale-title-small-weight: 500;
  --md-sys-typescale-title-small-line-height: 20px;

  --md-sys-typescale-body-large-font: 'Roboto';
  --md-sys-typescale-body-large-size: 16px;
  --md-sys-typescale-body-large-weight: 400;
  --md-sys-typescale-body-large-line-height: 24px;

  --md-sys-typescale-body-medium-font: 'Roboto';
  --md-sys-typescale-body-medium-size: 14px;
  --md-sys-typescale-body-medium-weight: 400;
  --md-sys-typescale-body-medium-line-height: 20px;

  --md-sys-typescale-body-small-font: 'Roboto';
  --md-sys-typescale-body-small-size: 12px;
  --md-sys-typescale-body-small-weight: 400;
  --md-sys-typescale-body-small-line-height: 16px;

  --md-sys-typescale-label-large-font: 'Roboto';
  --md-sys-typescale-label-large-size: 14px;
  --md-sys-typescale-label-large-weight: 500;
  --md-sys-typescale-label-large-line-height: 20px;

  --md-sys-typescale-label-medium-font: 'Roboto';
  --md-sys-typescale-label-medium-size: 12px;
  --md-sys-typescale-label-medium-weight: 500;
  --md-sys-typescale-label-medium-line-height: 16px;

  --md-sys-typescale-label-small-font: 'Roboto';
  --md-sys-typescale-label-small-size: 11px;
  --md-sys-typescale-label-small-weight: 500;
  --md-sys-typescale-label-small-line-height: 16px;

  /* Elevation */
  --md-sys-elevation-level0: 0px 0px 0px 0px rgba(0, 0, 0, 0.00), 0px 0px 0px 0px rgba(0, 0, 0, 0.00);
  --md-sys-elevation-level1: 0px 1px 2px 0px rgba(0, 0, 0, 0.30), 0px 1px 3px 1px rgba(0, 0, 0, 0.15);
  --md-sys-elevation-level2: 0px 1px 2px 0px rgba(0, 0, 0, 0.30), 0px 2px 6px 2px rgba(0, 0, 0, 0.15);
  --md-sys-elevation-level3: 0px 1px 3px 0px rgba(0, 0, 0, 0.30), 0px 4px 8px 3px rgba(0, 0, 0, 0.15);
  --md-sys-elevation-level4: 0px 2px 3px 0px rgba(0, 0, 0, 0.30), 0px 6px 10px 4px rgba(0, 0, 0, 0.15);
  --md-sys-elevation-level5: 0px 4px 4px 0px rgba(0, 0, 0, 0.30), 0px 8px 12px 6px rgba(0, 0, 0, 0.15);

  /* Shape */
  --md-sys-shape-corner-extra-small: 4px;
  --md-sys-shape-corner-small: 8px;
  --md-sys-shape-corner-medium: 12px;
  --md-sys-shape-corner-large: 16px;
  --md-sys-shape-corner-extra-large: 28px;

  /* Motion */
  --md-sys-motion-duration-short1: 50ms;
  --md-sys-motion-duration-short2: 100ms;
  --md-sys-motion-duration-short3: 150ms;
  --md-sys-motion-duration-short4: 200ms;
  --md-sys-motion-duration-medium1: 250ms;
  --md-sys-motion-duration-medium2: 300ms;
  --md-sys-motion-duration-medium3: 350ms;
  --md-sys-motion-duration-medium4: 400ms;
  --md-sys-motion-duration-long1: 450ms;
  --md-sys-motion-duration-long2: 500ms;
  --md-sys-motion-duration-long3: 550ms;
  --md-sys-motion-duration-long4: 600ms;
  --md-sys-motion-duration-extra-long1: 700ms;
  --md-sys-motion-duration-extra-long2: 800ms;
  --md-sys-motion-duration-extra-long3: 900ms;
  --md-sys-motion-duration-extra-long4: 1000ms;

  --md-sys-motion-easing-emphasized: cubic-bezier(0.2, 0, 0, 1);
  --md-sys-motion-easing-standard: cubic-bezier(0.2, 0, 0, 1);
  --md-sys-motion-easing-standard-decelerate: cubic-bezier(0, 0, 0, 1);
  --md-sys-motion-easing-standard-accelerate: cubic-bezier(0.3, 0, 1, 1);
}

/* Reset and Base Styles */
* {
  box-sizing: border-box;
}

body {
  font-family: var(--md-sys-typescale-body-large-font);
  font-size: var(--md-sys-typescale-body-large-size);
  font-weight: var(--md-sys-typescale-body-large-weight);
  line-height: var(--md-sys-typescale-body-large-line-height);
  color: var(--md-sys-color-on-surface);
  background-color: var(--md-sys-color-surface);
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1 {
  font-family: var(--md-sys-typescale-headline-large-font);
  font-size: var(--md-sys-typescale-headline-large-size);
  font-weight: var(--md-sys-typescale-headline-large-weight);
  line-height: var(--md-sys-typescale-headline-large-line-height);
  color: var(--md-sys-color-on-surface);
  margin: 0 0 24px 0;
}

h2 {
  font-family: var(--md-sys-typescale-headline-medium-font);
  font-size: var(--md-sys-typescale-headline-medium-size);
  font-weight: var(--md-sys-typescale-headline-medium-weight);
  line-height: var(--md-sys-typescale-headline-medium-line-height);
  color: var(--md-sys-color-on-surface);
  margin: 0 0 20px 0;
}

h3 {
  font-family: var(--md-sys-typescale-headline-small-font);
  font-size: var(--md-sys-typescale-headline-small-size);
  font-weight: var(--md-sys-typescale-headline-small-weight);
  line-height: var(--md-sys-typescale-headline-small-line-height);
  color: var(--md-sys-color-on-surface);
  margin: 0 0 16px 0;
}

h4 {
  font-family: var(--md-sys-typescale-title-large-font);
  font-size: var(--md-sys-typescale-title-large-size);
  font-weight: var(--md-sys-typescale-title-large-weight);
  line-height: var(--md-sys-typescale-title-large-line-height);
  color: var(--md-sys-color-on-surface);
  margin: 0 0 16px 0;
}

h5 {
  font-family: var(--md-sys-typescale-title-medium-font);
  font-size: var(--md-sys-typescale-title-medium-size);
  font-weight: var(--md-sys-typescale-title-medium-weight);
  line-height: var(--md-sys-typescale-title-medium-line-height);
  color: var(--md-sys-color-on-surface);
  margin: 0 0 12px 0;
}

h6 {
  font-family: var(--md-sys-typescale-title-small-font);
  font-size: var(--md-sys-typescale-title-small-size);
  font-weight: var(--md-sys-typescale-title-small-weight);
  line-height: var(--md-sys-typescale-title-small-line-height);
  color: var(--md-sys-color-on-surface);
  margin: 0 0 12px 0;
}

p {
  font-family: var(--md-sys-typescale-body-large-font);
  font-size: var(--md-sys-typescale-body-large-size);
  font-weight: var(--md-sys-typescale-body-large-weight);
  line-height: var(--md-sys-typescale-body-large-line-height);
  color: var(--md-sys-color-on-surface-variant);
  margin: 0 0 16px 0;
}

a {
  color: var(--md-sys-color-primary);
  text-decoration: none;
  transition: color var(--md-sys-motion-duration-short2) var(--md-sys-motion-easing-standard);
}

a:hover {
  color: var(--md-sys-color-on-primary-container);
}

/* Layout */
.container, .material-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

main {
  padding: 24px;
  max-width: 1200px;
  margin: 0 auto;
}

/* Material Design 3 Buttons */
.material-btn, button[type="submit"], button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  border: none;
  border-radius: var(--md-sys-shape-corner-full, 20px);
  font-family: var(--md-sys-typescale-label-large-font);
  font-size: var(--md-sys-typescale-label-large-size);
  font-weight: var(--md-sys-typescale-label-large-weight);
  line-height: var(--md-sys-typescale-label-large-line-height);
  cursor: pointer;
  transition: all var(--md-sys-motion-duration-short2) var(--md-sys-motion-easing-standard);
  text-decoration: none;
  min-height: 40px;
  position: relative;
  overflow: hidden;
  background: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  box-shadow: var(--md-sys-elevation-level1);
}

.material-btn:hover, button:hover {
  background: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  box-shadow: var(--md-sys-elevation-level2);
  transform: translateY(-1px);
}

.material-btn:active, button:active {
  box-shadow: var(--md-sys-elevation-level1);
  transform: translateY(0);
}

.material-btn-outlined {
  background: transparent;
  color: var(--md-sys-color-primary);
  border: 1px solid var(--md-sys-color-outline);
  box-shadow: none;
}

.material-btn-outlined:hover {
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  border-color: var(--md-sys-color-primary);
}

.material-btn-text {
  background: transparent;
  color: var(--md-sys-color-primary);
  box-shadow: none;
  padding: 10px 12px;
}

.material-btn-text:hover {
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
}

/* Material Design 3 Cards */
.material-card, .wdw-section, .wdw-item-card, .wdw-stat-card {
  background: var(--md-sys-color-surface-container);
  border-radius: var(--md-sys-shape-corner-large);
  box-shadow: var(--md-sys-elevation-level1);
  padding: 24px;
  margin-bottom: 24px;
  transition: box-shadow var(--md-sys-motion-duration-short2) var(--md-sys-motion-easing-standard),
              transform var(--md-sys-motion-duration-short2) var(--md-sys-motion-easing-standard);
}

.material-card:hover, .wdw-item-card:hover, .wdw-stat-card:hover {
  box-shadow: var(--md-sys-elevation-level2);
  transform: translateY(-2px);
}

/* Form Elements */
.material-input {
  position: relative;
  margin-bottom: 24px;
}

input[type="text"], 
input[type="email"], 
input[type="password"], 
input[type="date"], 
input[type="file"], 
select, 
textarea {
  width: 100%;
  padding: 16px;
  border: 1px solid var(--md-sys-color-outline);
  border-radius: var(--md-sys-shape-corner-extra-small);
  font-family: var(--md-sys-typescale-body-large-font);
  font-size: var(--md-sys-typescale-body-large-size);
  background: var(--md-sys-color-surface-container-highest);
  color: var(--md-sys-color-on-surface);
  transition: border-color var(--md-sys-motion-duration-short2) var(--md-sys-motion-easing-standard),
              box-shadow var(--md-sys-motion-duration-short2) var(--md-sys-motion-easing-standard);
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--md-sys-color-primary);
  box-shadow: 0 0 0 2px rgba(103, 80, 164, 0.12);
}

label {
  display: block;
  margin-bottom: 8px;
  font-family: var(--md-sys-typescale-body-medium-font);
  font-size: var(--md-sys-typescale-body-medium-size);
  font-weight: var(--md-sys-typescale-body-medium-weight);
  color: var(--md-sys-color-on-surface-variant);
}

/* Homepage Login */
.homepage {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--md-sys-color-primary) 0%, var(--md-sys-color-tertiary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.homepage-container {
  width: 100%;
  max-width: 400px;
}

.homepage-header {
  text-align: center;
  margin-bottom: 48px;
  color: var(--md-sys-color-on-primary);
}

.homepage-header h1 {
  font-family: var(--md-sys-typescale-display-small-font);
  font-size: var(--md-sys-typescale-display-small-size);
  font-weight: var(--md-sys-typescale-display-small-weight);
  line-height: var(--md-sys-typescale-display-small-line-height);
  margin-bottom: 16px;
  color: var(--md-sys-color-on-primary);
}

.homepage-header p {
  font-family: var(--md-sys-typescale-title-large-font);
  font-size: var(--md-sys-typescale-title-large-size);
  opacity: 0.9;
  color: var(--md-sys-color-on-primary);
}

.login-card {
  background: var(--md-sys-color-surface-container-highest);
  border-radius: var(--md-sys-shape-corner-extra-large);
  box-shadow: var(--md-sys-elevation-level3);
  padding: 48px;
  animation: slideUp 0.6s var(--md-sys-motion-easing-emphasized);
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Dashboard Components */
.wdw-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin: 32px 0;
}

.wdw-stat-card {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--md-sys-color-surface-container-high);
}

.wdw-stat-icon {
  font-size: 48px;
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--md-sys-color-primary-container);
  border-radius: var(--md-sys-shape-corner-large);
  color: var(--md-sys-color-on-primary-container);
}

.wdw-stat-content {
  flex: 1;
}

.wdw-stat-number {
  font-family: var(--md-sys-typescale-display-medium-font);
  font-size: var(--md-sys-typescale-display-medium-size);
  font-weight: var(--md-sys-typescale-display-medium-weight);
  line-height: var(--md-sys-typescale-display-medium-line-height);
  color: var(--md-sys-color-on-surface);
  margin-bottom: 4px;
}

.wdw-stat-label {
  font-family: var(--md-sys-typescale-title-medium-font);
  font-size: var(--md-sys-typescale-title-medium-size);
  font-weight: var(--md-sys-typescale-title-medium-weight);
  color: var(--md-sys-color-on-surface-variant);
}

/* Status Badges */
.wdw-status-badge {
  padding: 4px 12px;
  border-radius: var(--md-sys-shape-corner-small);
  font-family: var(--md-sys-typescale-label-medium-font);
  font-size: var(--md-sys-typescale-label-medium-size);
  font-weight: var(--md-sys-typescale-label-medium-weight);
  text-transform: none;
  letter-spacing: 0.1px;
}

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

.status-submitted {
  background: #E1F5FE;
  color: #01579B;
}

.status-under-review {
  background: #FFF8E1;
  color: #E65100;
}

.status-accepted {
  background: var(--md-sys-color-tertiary-container);
  color: var(--md-sys-color-on-tertiary-container);
}

.status-rejected {
  background: var(--md-sys-color-error-container);
  color: var(--md-sys-color-on-error-container);
}

.status-closed, .status-completed {
  background: #E0F2F1;
  color: #00695C;
}

/* Quick Actions */
.wdw-quick-actions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
  margin: 24px 0;
}

.wdw-action-btn {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: var(--md-sys-color-surface-container-highest);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-sys-shape-corner-large);
  padding: 24px;
  text-decoration: none;
  color: var(--md-sys-color-on-surface);
  transition: all var(--md-sys-motion-duration-short2) var(--md-sys-motion-easing-standard);
}

.wdw-action-btn:hover {
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  border-color: var(--md-sys-color-primary);
  box-shadow: var(--md-sys-elevation-level1);
  transform: translateY(-2px);
}

.wdw-action-btn .material-icon {
  font-size: 32px;
  color: var(--md-sys-color-primary);
  font-family: 'Material Symbols Outlined';
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

.wdw-action-btn strong {
  font-family: var(--md-sys-typescale-title-medium-font);
  font-size: var(--md-sys-typescale-title-medium-size);
  font-weight: var(--md-sys-typescale-title-medium-weight);
  margin-bottom: 4px;
}

.wdw-action-btn p {
  font-family: var(--md-sys-typescale-body-medium-font);
  font-size: var(--md-sys-typescale-body-medium-size);
  color: var(--md-sys-color-on-surface-variant);
  margin: 0;
}

/* Empty State */
.wdw-empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--md-sys-color-on-surface-variant);
}

.wdw-empty-state .material-icon {
  font-size: 64px;
  color: var(--md-sys-color-outline);
  margin-bottom: 16px;
  font-family: 'Material Symbols Outlined';
}

.wdw-empty-state h3 {
  color: var(--md-sys-color-on-surface);
  margin-bottom: 8px;
}

/* Header and Footer */
header, footer {
  background: var(--md-sys-color-surface-container);
  box-shadow: var(--md-sys-elevation-level2);
  padding: 16px 24px;
}

/* Error Messages */
.wdw-errors, .material-alert-error {
  background: var(--md-sys-color-error-container);
  color: var(--md-sys-color-on-error-container);
  border-radius: var(--md-sys-shape-corner-medium);
  padding: 16px 24px;
  margin-bottom: 24px;
  border-left: 4px solid var(--md-sys-color-error);
}

/* Responsive Design */
@media (max-width: 768px) {
  .homepage-header h1 {
    font-size: 28px;
  }
  
  .login-card {
    padding: 32px 24px;
  }
  
  .wdw-stats-grid {
    grid-template-columns: 1fr;
  }
  
  .wdw-quick-actions {
    grid-template-columns: 1fr;
  }
  
  .container, .material-container, main {
    padding: 16px;
  }
}

/* Material Icons */
.material-icon {
  font-family: 'Material Symbols Outlined';
  font-weight: normal;
  font-style: normal;
  font-size: 24px;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  font-feature-settings: 'liga';
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

/* Focus and Accessibility */
.material-btn:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--md-sys-color-primary);
  outline-offset: 2px;
}

/* Loading States */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

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