/* ==========================================================================
   assets/css/components.css - UI Components, Header, Buttons, Canvas & Modal
   PlayJigsaw.net Open Source Game Engine (https://playjigsaw.net/)
   ========================================================================== */

/* Header */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: var(--bg-surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 40;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}

.logo-icon {
  font-size: 1.8rem;
  filter: drop-shadow(0 2px 8px rgba(99, 102, 241, 0.5));
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #ffffff 30%, #a5b4fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-badge {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 700;
  color: var(--accent-cyan);
}

.main-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  text-align: center;
  letter-spacing: -0.01em;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.55rem 1rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  user-select: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-700) 100%);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(99, 102, 241, 0.5);
  background: linear-gradient(135deg, #7073ff 0%, #4338ca 100%);
}

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

.btn-secondary:hover {
  background: #28354b;
  border-color: var(--border-hover);
  transform: translateY(-1px);
}

.btn-icon {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--border-color);
  padding: 0.55rem 0.75rem;
  font-size: 1rem;
}

.btn-icon:hover {
  background: #28354b;
}

.btn-pulse {
  position: relative;
}

.btn-pulse::after {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  border-radius: calc(var(--radius-md) + 2px);
  background: linear-gradient(135deg, var(--primary-500), var(--accent-cyan));
  z-index: -1;
  opacity: 0.4;
  filter: blur(4px);
  animation: pulseGlow 3s infinite alternate;
}

@keyframes pulseGlow {
  0% { opacity: 0.2; }
  100% { opacity: 0.6; transform: scale(1.02); }
}

/* Game Container */
.game-container {
  max-width: 1480px;
  width: 100%;
  margin: 1.5rem auto;
  padding: 0 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* Toolbar */
.game-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: var(--bg-surface);
  backdrop-filter: blur(8px);
  padding: 0.9rem 1.25rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.toolbar-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.select-input {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-md);
  outline: none;
  cursor: pointer;
  transition: border-color var(--transition-fast);
}

.select-input:focus {
  border-color: var(--primary-500);
}

.toolbar-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* Status Bar */
.game-status-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.status-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.9rem;
}

.status-icon {
  font-size: 1.1rem;
}

.status-title {
  color: var(--text-secondary);
  font-weight: 500;
}

.status-value {
  font-weight: 700;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

/* Canvas Area */
.puzzle-stage {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  align-items: start;
  gap: 1.25rem;
}

.canvas-wrapper {
  position: relative;
  width: 100%;
  height: 600px;
  background: #060911;
  border-radius: var(--radius-lg);
  border: 2px solid var(--border-color);
  overflow: hidden;
  box-shadow: var(--shadow-lg), inset 0 0 40px rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
}

#puzzle-canvas {
  width: 100%;
  height: 100%;
  display: block;
  cursor: grab;
}

#puzzle-canvas:active {
  cursor: grabbing;
}

/* Completed Reference */
.reference-panel {
  position: sticky;
  top: 6.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 0.9rem;
  box-shadow: var(--shadow-md);
}

.reference-header {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  margin-bottom: 0.75rem;
}

.reference-eyebrow {
  color: var(--text-muted);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.reference-header strong {
  color: var(--text-primary);
  font-size: 1rem;
}

.reference-panel img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-sm);
  display: block;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.reference-panel p {
  color: var(--text-muted);
  font-size: 0.78rem;
  line-height: 1.45;
  margin-top: 0.75rem;
}

/* SEO Article Section */
.seo-article-section {
  max-width: 1280px;
  width: 100%;
  margin: 3rem auto 1.5rem;
  padding: 0 1.5rem;
}

.article-container {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
}

.article-container h2 {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.3;
}

.article-container p {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.seo-link {
  color: #818cf8;
  text-decoration: none;
  font-weight: 600;
  border-bottom: 1px dashed rgba(129, 140, 248, 0.5);
  transition: all var(--transition-fast);
}

.seo-link:hover {
  color: #a5b4fc;
  border-bottom-style: solid;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.feature-card {
  background: var(--bg-tertiary);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.feature-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-hover);
}

.card-icon {
  font-size: 1.8rem;
  margin-bottom: 0.75rem;
}

.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.feature-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 0;
  line-height: 1.5;
}

.cta-banner {
  margin-top: 2.5rem;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(6, 182, 212, 0.15) 100%);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--radius-md);
  padding: 1.75rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.cta-text h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.cta-text p {
  font-size: 0.9rem;
  margin-bottom: 0;
}

.cta-text a {
  color: #a5b4fc;
  font-weight: 600;
}

.btn-cta {
  background: linear-gradient(135deg, var(--primary-500) 0%, var(--accent-cyan) 100%);
  color: #ffffff;
  font-weight: 700;
  padding: 0.75rem 1.5rem;
  box-shadow: 0 4px 14px rgba(6, 182, 212, 0.3);
}

.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(6, 182, 212, 0.5);
}

/* Footer */
.app-footer {
  background: #080c14;
  border-top: 1px solid var(--border-color);
  padding: 3rem 2rem 1.5rem;
  margin-top: 4rem;
}

.footer-content {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2.5rem;
}

.footer-desc {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-top: 0.75rem;
  max-width: 360px;
}

.footer-desc a {
  color: var(--text-secondary);
  text-decoration: none;
}

.footer-desc a:hover {
  text-decoration: underline;
}

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.875rem;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: #818cf8;
}

.footer-bottom {
  max-width: 1280px;
  margin: 2.5rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-bottom a {
  color: var(--text-secondary);
  text-decoration: none;
}

/* Victory Modal */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-backdrop.show {
  opacity: 1;
  pointer-events: auto;
}

.modal-dialog {
  background: var(--bg-secondary);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  max-width: 480px;
  width: 90%;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg), 0 0 35px rgba(99, 102, 241, 0.25);
  transform: scale(0.9);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-backdrop.show .modal-dialog {
  transform: scale(1);
}

.trophy-emoji {
  font-size: 3.5rem;
  display: inline-block;
  margin-bottom: 0.5rem;
  animation: bounce 1s infinite alternate ease-in-out;
}

@keyframes bounce {
  from { transform: translateY(0); }
  to { transform: translateY(-8px); }
}

.modal-header h2 {
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 0.4rem;
}

.modal-subtitle {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.modal-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.stat-box {
  background: var(--bg-tertiary);
  padding: 0.75rem 0.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.stat-label {
  display: block;
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.stat-number {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--accent-green);
}

.modal-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}