styles.css

/* Dark Mode Gaming Theme */
:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #1a1a1a;
  --bg-tertiary: #2a2a2a;
  --accent-cyan: #00ffff;
  --accent-green: #00ff88;
  --accent-purple: #8844ff;
  --text-primary: #ffffff;
  --text-secondary: #cccccc;
  --text-muted: #888888;
  --border-primary: #333333;
  --border-accent: #00ffff;
  --shadow-glow: 0 0 20px rgba(0, 255, 255, 0.3);
  --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.5);
  --gradient-primary: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
  --gradient-accent: linear-gradient(135deg, #00ffff 0%, #00ff88 100%);
}

* {
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  margin: 0;
  padding: 1rem;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: 1200px; /* Increased to accommodate larger grids */
  margin: 0 auto;
  padding: 2rem 1rem;
}

/* Home button */
.home-btn {
  position: fixed;
  top: 1rem;
  left: 1rem;
  background: var(--gradient-primary);
  color: var(--accent-cyan);
  text-decoration: none;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--border-accent);
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-soft);
  z-index: 1000;
}

.home-btn:hover {
  background: var(--bg-tertiary);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

/* Main content wrapper */
.surround {
  padding: 1rem;
  background: var(--gradient-primary);
  border-radius: 12px;
  border: 1px solid var(--border-primary);
  box-shadow: var(--shadow-soft);
}

/* Canvas styling */
#board {
  background: var(--bg-secondary);
  border: 2px solid var(--border-accent);
  border-radius: 8px;
  cursor: crosshair;
  display: block;
  margin: 1rem auto;
  box-shadow: var(--shadow-glow);
  transition: box-shadow 0.3s ease;
}

#board:hover {
  box-shadow: 0 0 30px rgba(0, 255, 255, 0.5);
}

/* Canvas container with preview */
.canvas-container {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  justify-content: center;
  flex-wrap: wrap;
  overflow-x: auto; /* Allow horizontal scrolling if needed */
  min-width: 0; /* Allow container to shrink */
}

#aiPreviewDock {
  max-width: 300px;
  border: 2px solid var(--border-primary);
  border-radius: 8px;
  box-shadow: var(--shadow-soft);
}

/* Side panel */
#side {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Tabs */
.tabs {
  display: flex;
  border-bottom: 2px solid var(--border-accent);
  margin-bottom: 1.5rem;
  border-radius: 8px 8px 0 0;
  overflow: hidden;
}

.tab-btn {
  flex: 1;
  padding: 1rem;
  text-align: center;
  border: none;
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  transition: all 0.3s ease;
  position: relative;
}

.tab-btn:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.tab-btn.active {
  background: var(--gradient-accent);
  color: var(--bg-primary);
  box-shadow: inset 0 -3px 0 var(--accent-cyan);
}

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent-cyan);
}

/* Tab content */
.tab-content {
  display: none;
  flex-direction: column;
  gap: 1.5rem;
  padding: 1rem;
  background: var(--bg-secondary);
  border-radius: 8px;
  border: 1px solid var(--border-primary);
}

.tab-content.active {
  display: flex;
}

/* Buttons */
button {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  border: 1px solid var(--border-accent);
  border-radius: 6px;
  background: var(--gradient-primary);
  color: var(--accent-cyan);
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-soft);
}

button:hover {
  background: var(--bg-tertiary);
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

button:active {
  transform: translateY(0);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* Primary action buttons */
button.primary {
  background: var(--gradient-accent);
  color: var(--bg-primary);
  border-color: var(--accent-green);
}

button.primary:hover {
  background: var(--accent-green);
  box-shadow: 0 0 25px rgba(0, 255, 136, 0.4);
}

/* Danger buttons */
button.danger {
  background: linear-gradient(135deg, #ff4444 0%, #cc0000 100%);
  color: white;
  border-color: #ff4444;
}

button.danger:hover {
  background: #ff6666;
  box-shadow: 0 0 25px rgba(255, 68, 68, 0.4);
}

/* Form elements */
input[type="number"], 
input[type="password"],
input[type="file"],
select, 
textarea {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-primary);
  border-radius: 6px;
  padding: 0.75rem;
  font-size: 1rem;
  transition: all 0.3s ease;
}

input[type="number"], select {
  width: 4rem;
  text-align: center;
  font-size: 1.2rem;
  font-weight: 600;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 10px rgba(0, 255, 255, 0.3);
}

textarea {
  width: 100%;
  min-height: 120px;
  font-family: 'Courier New', monospace;
  resize: vertical;
}

/* Labels */
label {
  color: var(--text-primary);
  font-weight: 600;
  margin-bottom: 0.5rem;
  display: block;
}

label.size {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0;
}

/* Status messages */
#status, #buildStatus, #aiStatus {
  font-weight: 600;
  min-height: 1.5rem;
  padding: 0.75rem;
  border-radius: 6px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  color: var(--text-secondary);
}

/* Palette for Queens */
#palette {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

#palette button {
  min-width: 3rem;
  padding: 0.5rem;
  font-size: 1.1rem;
  font-weight: bold;
}

#palette button.active {
  background: var(--gradient-accent);
  color: var(--bg-primary);
  box-shadow: var(--shadow-glow);
}

/* Grid controls */
.grid-controls {
  display: flex;
  /* flex-direction: column; */

  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
  padding: 1rem;
  background: var(--bg-tertiary);
  border-radius: 8px;
  border: 1px solid var(--border-primary);
}

/* File upload area */
.upload-area {
  border: 2px dashed var(--border-primary);
  border-radius: 8px;
  padding: 2rem;
  text-align: center;
  background: var(--bg-tertiary);
  transition: all 0.3s ease;
}

.upload-area:hover {
  border-color: var(--accent-cyan);
  background: var(--bg-secondary);
}

/* Index page specific styles */
.index-body {
  max-width: 600px;
  padding: 2rem 1rem;
}

.index-body h1 {
  text-align: center;
  color: var(--accent-cyan);
  font-size: 2.5rem;
  margin-bottom: 2rem;
  text-shadow: 0 0 20px rgba(0, 255, 255, 0.5);
}

.keybox {
  margin: 2rem 0;
  padding: 1.5rem;
  background: var(--gradient-primary);
  border: 1px solid var(--border-accent);
  border-radius: 12px;
  box-shadow: var(--shadow-glow);
}

/* .row {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}

.row input[type="password"] {
  flex: 1;
  min-width: 200px;
} */

.row {
  display: flex;
  align-items: center;
  gap: 8px; /* space between elements */
  margin-bottom: 10px;
}
.row label {
  white-space: nowrap; /* keeps label from wrapping */
}
.row input {
  flex: 1; /* input grows to fill space */
  padding: 5px;
}
.row button {
  padding: 5px 10px;
}

.puzzle-links {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.puzzle-links li {
  margin: 0;
}

/* .puzzle-links a {
  display: block;
  padding: 1.5rem;
  background: var(--gradient-primary);
  color: var(--accent-cyan);
  text-decoration: none;
  border: 1px solid var(--border-accent);
  border-radius: 12px;
  font-weight: 600;
  font-size: 1.2rem;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-soft);
  text-align: center;
} */

.puzzle-links a {
  display: block;
  padding: 0.75rem 1rem;   /* smaller inner spacing */
  background: var(--gradient-primary);
  color: var(--accent-cyan);
  text-decoration: none;
  border: 1px solid var(--border-accent);
  border-radius: 8px;      /* slightly less rounded */
  font-weight: 500;
  font-size: 1rem;         /* smaller text */
  transition: all 0.3s ease;
  box-shadow: var(--shadow-soft);
  text-align: center;
  min-height: 60px;        /* optional: cap the height */
}

.puzzle-links a:hover {
  background: var(--bg-tertiary);
  box-shadow: var(--shadow-glow);
  transform: translateY(-3px);
}

/* Responsive design */
@media (max-width: 768px) {
  body {
    padding: 1rem 0.5rem;
    gap: 1rem;
  }
  
  .home-btn {
    position: static;
    margin-bottom: 1rem;
    align-self: flex-start;
  }
  
  .canvas-container {
    flex-direction: column;
    align-items: center;
  }
  
  #aiPreviewDock {
    max-width: 100%;
  }
  
  .grid-controls {
    flex-direction: column;
    align-items: stretch;
  }
  
  .row {
    flex-direction: column;
    align-items: stretch;
  }
  
  .row input[type="password"] {
    min-width: auto;
  }
  
  button {
    padding: 1rem;
    font-size: 1.1rem;
  }
  
  input[type="number"], select {
    font-size: 1.5rem;
    padding: 1rem;
  }
}

@media (max-width: 480px) {
  .index-body h1 {
    font-size: 2rem;
  }
  
  .tabs {
    flex-direction: column;
  }
  
  .tab-btn {
    border-radius: 0;
  }
  
  #palette {
    gap: 0.25rem;
  }
  
  #palette button {
    min-width: 2.5rem;
    padding: 0.4rem;
    font-size: 1rem;
  }
}

/* Animations */
@keyframes glow-pulse {
  0%, 100% { box-shadow: var(--shadow-glow); }
  50% { box-shadow: 0 0 30px rgba(0, 255, 255, 0.6); }
}

.glow-animation {
  animation: glow-pulse 2s ease-in-out infinite;
}

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

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-primary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-cyan);
}