/**
 * Shared styles and CSS variables
 * Used across both player UI and host panel
 */

:root {
  /* Robot colors */
  --color-red: #E74C3C;
  --color-yellow: #F39C12;
  --color-green: #27AE60;
  --color-blue: #3498DB;
  --color-multi: #9B59B6;
  
  /* UI colors - Light mode defaults */
  --color-bg: #ECF0F1;
  --color-card: #FFFFFF;
  --color-text: #2C3E50;
  --color-text-muted: #7F8C8D;
  --color-border: #BDC3C7;
  --color-shadow: rgba(0, 0, 0, 0.1);
  --color-input-bg: #FFFFFF;
  --color-secondary-bg: #F8F9FA;
  --color-highlight: #FFF9C4;
  
  /* Game board colors - Light mode */
  --color-grid-line: #ECF0F1;
  --color-wall: #2C3E50;
  
  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  
  /* Typography */
  --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-xxl: 2rem;
  
  /* Borders */
  --border-radius: 8px;
  --border-radius-sm: 4px;
  
  /* Transitions */
  --transition-speed: 0.2s;
}

/* Dark mode */
[data-theme="dark"] {
  --color-bg: #1a1a2e;
  --color-card: #16213e;
  --color-text: #e8e8e8;
  --color-text-muted: #a0a0a0;
  --color-border: #3a3a5a;
  --color-shadow: rgba(0, 0, 0, 0.3);
  --color-input-bg: #1f2940;
  --color-secondary-bg: #1f2940;
  --color-highlight: #4a4a2e;
  
  /* Game board colors - Dark mode */
  --color-grid-line: #2a2a4a;
  --color-wall: #a0a0b0;
}

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

/* Base styles */
html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
}

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

h1 { font-size: var(--font-size-xxl); }
h2 { font-size: var(--font-size-xl); }
h3 { font-size: var(--font-size-lg); }

p {
  margin-bottom: var(--spacing-md);
}

/* Links */
a {
  color: var(--color-blue);
  text-decoration: none;
  transition: opacity var(--transition-speed);
}

a:hover {
  opacity: 0.8;
}

/* Buttons */
button {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  cursor: pointer;
  border: none;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-speed);
}

button:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 2px 8px var(--color-shadow);
}

button:active:not(:disabled) {
  transform: translateY(0);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Accessibility: Keyboard focus states */
/* Only show focus ring when using keyboard (not mouse clicks) */
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
a:focus-visible {
  outline: 3px solid var(--color-blue);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(52, 152, 219, 0.2);
}

/* Inputs */
input, select, textarea {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  background: var(--color-input-bg);
  color: var(--color-text);
  transition: border-color var(--transition-speed), background-color var(--transition-speed);
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--color-blue);
}

/* Cards */
.card {
  background: var(--color-card);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  box-shadow: 0 2px 4px var(--color-shadow);
}

/* Utility classes */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.flex { display: flex; }
.flex-column { flex-direction: column; }
.flex-center { align-items: center; justify-content: center; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

/* Error message */
.error-message {
  background: var(--color-card);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl);
  text-align: center;
  max-width: 500px;
  margin: var(--spacing-xl) auto;
}

.error-message h2 {
  color: var(--color-red);
}

/* Loading state */
.loading {
  text-align: center;
  padding: var(--spacing-xl);
  color: var(--color-text);
  opacity: 0.7;
}

/* Toast notification */
.toast-notification {
  position: fixed;
  bottom: var(--spacing-lg);
  right: var(--spacing-lg);
  background: var(--color-text);
  color: white;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--border-radius);
  box-shadow: 0 4px 12px var(--color-shadow);
  animation: slideIn 0.3s ease-out;
  z-index: 1000;
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* Recent Games Section */
#recent-games-section {
  margin-top: var(--spacing-lg);
  max-width: 500px;
  width: 100%;
}

.recent-games-heading {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
  opacity: 0.7;
  margin-bottom: var(--spacing-md);
  text-align: left;
}

#recent-games-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.game-history-item {
  background: var(--color-secondary-bg);
  border-radius: var(--border-radius-sm);
  padding: var(--spacing-md);
  cursor: pointer;
  transition: all var(--transition-speed);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.game-history-item:hover {
  background: var(--color-border);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px var(--color-shadow);
}

.game-history-item:active {
  transform: translateY(0);
}

.game-history-name {
  font-weight: 500;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding-right: var(--spacing-xl); /* Space for delete button */
}

.game-history-host-badge {
  color: var(--color-blue);
  font-size: var(--font-size-base);
}

.game-history-time {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.game-history-delete {
  position: absolute;
  top: 50%;
  right: var(--spacing-md);
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 1.25rem;
  padding: var(--spacing-xs);
  cursor: pointer;
  border-radius: 50%;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-speed);
}

.game-history-delete:hover {
  background: rgba(231, 76, 60, 0.1);
  color: var(--color-red);
  transform: translateY(-50%) scale(1.1);
  box-shadow: none;
}

.game-history-delete:focus-visible {
  outline: 2px solid var(--color-red);
  outline-offset: 2px;
}

.game-history-empty {
  text-align: center;
  color: var(--color-text-muted);
  font-style: italic;
  padding: var(--spacing-lg);
}

/* Responsive */
@media (max-width: 768px) {
  :root {
    --font-size-xxl: 1.5rem;
    --font-size-xl: 1.25rem;
  }
  
  .card {
    padding: var(--spacing-md);
  }
  
  #recent-games-section {
    max-width: 100%;
  }
  
  .game-history-delete {
    width: 44px;
    height: 44px;
    font-size: 1.5rem;
  }
}

/* Theme Toggle Button */
.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--border-radius-sm);
  font-size: 1.5rem;
  transition: all var(--transition-speed);
  color: var(--color-text);
}

.theme-toggle:hover {
  background: var(--color-border);
  transform: scale(1.1);
  box-shadow: none;
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--color-blue);
  outline-offset: 2px;
}

/* Landing page theme toggle - positioned in corner */
.theme-toggle-landing {
  position: absolute;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  color: white;
}

.theme-toggle-landing:hover {
  background: rgba(255, 255, 255, 0.2);
}