.no-cards-message {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 400px;
  font-size: 1.25rem;
  color: var(--medium-text);
  text-align: center;
}.card-back .card-controls {
  display: none;
}/* Envisioning Cards Workshop Toolkit - Styles */

/* CSS Custom Properties for theming */
:root {
  --primary-color: #2c3e50;
  --secondary-color: #34495e;
  --accent-color: #3498db;
  --success-color: #27ae60;
  --warning-color: #f39c12;
  --danger-color: #e74c3c;
  --light-bg: #ecf0f1;
  --dark-text: #2c3e50;
  --medium-text: #7f8c8d;
  --light-text: #bdc3c7;
  --white: #ffffff;
  --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.15);
  --border-radius: 12px;
  --transition: all 0.3s ease;
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

/* Reset and base styles */
* {
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  margin: 0;
  padding: 0;
  background-color: var(--light-bg);
  color: var(--dark-text);
  line-height: 1.6;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  margin: 0 0 1rem 0;
  font-weight: 600;
  line-height: 1.3;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.5rem; }

p {
  margin: 0 0 1rem 0;
}

/* Button styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--border-radius);
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  background: var(--white);
  color: var(--dark-text);
  border: 2px solid transparent;
  min-height: 44px; /* Touch target */
}

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

.btn:focus {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

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

.btn-secondary {
  background: var(--secondary-color);
  color: var(--white);
}

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

.btn-large {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

.btn-nav {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  padding: 0;
}

/* Navigation */
.main-nav {
  background: var(--white);
  box-shadow: var(--shadow);
  position: static;
  z-index: 100;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.site-title {
  margin: 0;
  flex-grow: 1;
}

.site-title a {
  text-decoration: none;
  color: var(--primary-color);
  font-size: 1.125rem;
  font-weight: 700;
}

.nav-menu {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 0.75rem;
}

.nav-link {
  padding: 0.5rem 0.75rem;
  text-decoration: none;
  color: var(--dark-text);
  border-radius: var(--border-radius);
  transition: var(--transition);
  position: relative;
  font-size: 0.9rem;
}

.nav-link:hover {
  background: var(--light-bg);
}

.favorites-count {
  background: var(--danger-color);
  color: var(--white);
  border-radius: 50%;
  padding: 0.25rem 0.5rem;
  font-size: 0.7rem;
  font-weight: 600;
  min-width: 1.25rem;
  text-align: center;
  position: absolute;
  top: -0.5rem;
  right: -0.5rem;
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.jump-to-card {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

#card-jump-input {
  padding: 0.5rem;
  border: 1px solid var(--light-text);
  border-radius: var(--border-radius);
  background: var(--white);
  font-size: 0.875rem;
  width: 80px;
  text-transform: uppercase;
}

#card-jump-input:focus {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

#jump-to-card-btn {
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
}

/* Filter Sidebar */
.filter-sidebar {
  position: fixed;
  top: 0;
  right: -350px;
  width: 350px;
  height: 100vh;
  background: var(--white);
  box-shadow: var(--shadow-hover);
  transition: var(--transition);
  z-index: 200;
  overflow-y: auto;
}

.filter-sidebar.open {
  right: 0;
}

.sidebar-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 150;
}

.sidebar-overlay.show {
  opacity: 1;
  visibility: visible;
}

.sidebar-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--light-text);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.sidebar-header h3 {
  margin: 0;
  color: var(--dark-text);
}

.close-btn {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--medium-text);
  cursor: pointer;
  padding: 0.25rem;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: var(--transition);
}

.close-btn:hover {
  background: var(--light-bg);
  color: var(--dark-text);
}

.sidebar-content {
  padding: 1.5rem;
}

.filter-options {
  margin-bottom: 2rem;
}

.filter-option {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 0;
  cursor: pointer;
  border-bottom: 1px solid var(--light-bg);
}

.filter-option input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.filter-option span {
  font-weight: 500;
}

.sidebar-actions {
  display: flex;
  gap: 1rem;
}

.sidebar-actions .btn {
  flex: 1;
  padding: 0.75rem;
  font-size: 0.9rem;
}

/* Main content */
.main-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1rem;
  min-height: calc(100vh - 200px);
}

/* Section headers */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.section-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.cards-count {
  font-size: 0.875rem;
  color: var(--medium-text);
}

/* Cards grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

/* Individual card */
.card {
  position: relative;
  width: 100%;
  height: 600px;
  perspective: 1000px;
  cursor: pointer;
}

.card.focused {
  outline: 3px solid var(--accent-color);
  outline-offset: 2px;
}

.card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  text-align: center;
  transition: transform 0.6s;
  transform-style: preserve-3d;
}

.card.flipped .card-inner {
  transform: rotateY(180deg);
}

.card-front,
.card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.card-front {
  background: var(--white);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  text-align: center;
}

.card-back {
  background: var(--white);
  transform: rotateY(180deg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.card-emoji {
  font-size: 4rem;
  margin-bottom: 1rem;
}

.card-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--dark-text);
}

.card-group {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--white);
}

.card-id {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(255, 255, 255, 0.9);
  padding: 0.25rem 0.5rem;
  border-radius: var(--border-radius);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--dark-text);
}

.card-back .card-title {
  margin-top: 3rem;
  margin-bottom: 1.5rem;
}

.card-theme {
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--dark-text);
}

.card-activity {
  background: var(--light-bg);
  padding: 1.5rem;
  border-radius: var(--border-radius);
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--dark-text);
  margin-bottom: 1rem;
}

.card-activity::before {
  content: "Designaktivitet:";
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--secondary-color);
}

.card-controls {
  position: absolute;
  bottom: 1rem;
  right: 1rem;
  display: flex;
  gap: 0.5rem;
  opacity: 0;
  transition: var(--transition);
  z-index: 10;
}

.card:hover .card-controls,
.card:focus-within .card-controls {
  opacity: 1;
}

.card-control-btn {
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.95);
  color: var(--dark-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  font-size: 1rem;
  box-shadow: var(--shadow);
}

.card-control-btn:hover {
  background: var(--white);
  transform: scale(1.1);
}

.card-control-btn.favorited {
  background: var(--danger-color);
  color: var(--white);
}

.card-control-btn:focus {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

/* Welcome section */
.welcome-section {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.welcome-content {
  margin-bottom: 3rem;
}

.welcome-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

#welcome-card {
  max-width: 600px;
  margin: 0 auto;
}

/* Presentation mode */
.presentation-mode {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 200px);
}

.presentation-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.card-counter {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--dark-text);
}

.presentation-card-container {
  flex-grow: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.presentation-card-container .card {
  width: 600px;
  height: 600px;
  max-width: 90vw;
  max-height: 80vh;
}

/* Single card view */
.single-card-section {
  max-width: 800px;
  margin: 0 auto;
}

.single-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.back-link {
  text-decoration: none;
  color: var(--accent-color);
  font-weight: 500;
}

.back-link:hover {
  text-decoration: underline;
}

.single-card-container .card {
  width: 100%;
  height: 600px;
  max-height: 80vh;
}

/* Empty states */
.empty-favorites {
  grid-column: 1 / -1;
  text-align: center;
  padding: 4rem 2rem;
  color: var(--medium-text);
}

/* Keyboard help */
.help-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--accent-color);
  color: var(--white);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 600;
  box-shadow: var(--shadow-hover);
  transition: var(--transition);
  z-index: 100;
}

.help-btn:hover {
  transform: scale(1.1);
  background: var(--secondary-color);
}

.keyboard-help {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-hover);
  max-width: 400px;
  width: 90vw;
  max-height: 80vh;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 250;
  overflow: hidden;
}

.keyboard-help.show {
  opacity: 1;
  visibility: visible;
}

.help-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--light-text);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.help-header h3 {
  margin: 0;
  color: var(--dark-text);
}

.keyboard-help dl {
  margin: 0;
  padding: 1.5rem;
  max-height: 60vh;
  overflow-y: auto;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem 1rem;
  align-items: center;
}

.keyboard-help dt {
  margin: 0;
  justify-self: start;
}

.keyboard-help dd {
  margin: 0;
  font-size: 0.875rem;
  color: var(--medium-text);
  justify-self: start;
}

.keyboard-help kbd {
  background: var(--light-bg);
  border: 1px solid var(--light-text);
  border-radius: 4px;
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
}

/* Toast notifications */
.toast-container {
  position: fixed;
  top: 2rem;
  right: 2rem;
  z-index: 300;
}

.toast {
  background: var(--dark-text);
  color: var(--white);
  padding: 1rem 1.5rem;
  border-radius: var(--border-radius);
  margin-bottom: 0.5rem;
  transform: translateX(100%);
  transition: var(--transition);
  box-shadow: var(--shadow-hover);
}

.toast.show {
  transform: translateX(0);
}

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

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

/* Footer */
.site-footer {
  background: var(--white);
  border-top: 1px solid var(--light-text);
  padding: 2rem 1rem;
  text-align: center;
  color: var(--medium-text);
  font-size: 0.875rem;
  margin-top: 4rem;
}

/* Responsive design */
@media (max-width: 1024px) {
  .cards-grid {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
  }
  
  .nav-container {
    gap: 1rem;
  }
  
  .nav-menu {
    order: 3;
    flex-basis: 100%;
    justify-content: center;
  }
  
  .section-header {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }
}

@media (max-width: 768px) {
  .cards-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .card {
    height: 550px;
  }
  
  .main-content {
    padding: 1rem;
  }
  
  .nav-container {
    flex-direction: column;
    gap: 1rem;
  }
  
  .nav-menu {
    order: 2;
    flex-basis: auto;
  }
  
  .nav-controls {
    order: 3;
    flex-direction: column;
    width: 100%;
    gap: 1rem;
  }
  
  .jump-to-card {
    justify-content: center;
  }
  
  #card-jump-input {
    width: 100px;
  }
  
  .welcome-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .presentation-controls {
    flex-direction: column;
    gap: 1rem;
  }
  
  .presentation-card-container .card {
    width: 100%;
    height: 400px;
  }
  
  .single-card-header {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  
  .keyboard-help {
    position: static;
    margin: 2rem auto;
    max-width: none;
    width: 90%;
    opacity: 1;
    visibility: visible;
    transform: none;
  }
  
  .help-btn {
    display: none;
  }
  
  .keyboard-help {
    display: none;
  }
}

/* Print styles */
@media print {
  .main-nav,
  .keyboard-help,
  .toast-container,
  .card-controls {
    display: none;
  }
  
  .card {
    break-inside: avoid;
    height: auto;
    page-break-inside: avoid;
  }
  
  .card-inner {
    transform: none;
  }
  
  .card-front {
    display: none;
  }
  
  .card-back {
    transform: none;
    position: static;
    box-shadow: none;
    border: 1px solid var(--light-text);
  }
}

/* High contrast mode */
@media (prefers-contrast: high) {
  :root {
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.4);
  }
  
  .btn {
    border: 2px solid var(--dark-text);
  }
  
  .card-front,
  .card-back {
    border: 2px solid var(--dark-text);
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .card-inner {
    transition: none;
  }
  
  .card.flipped .card-inner {
    transform: rotateY(180deg);
  }
}