/* Tablet-Optimized Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  height: 100vh;
  overflow: hidden;
}

.tablet-container {
  width: 100vw;
  height: 100vh;
  background: white;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Header */
.tablet-header {
  background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  color: white;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  flex-shrink: 0;
}

.menu-btn {
  background: rgba(255,255,255,0.2);
  border: none;
  color: white;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  cursor: pointer;
  transition: all 0.2s;
}

.menu-btn:hover {
  background: rgba(255,255,255,0.3);
}

.header-center {
  text-align: center;
}

.header-center h1 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 2px;
}

.level {
  font-size: 14px;
  font-weight: 600;
  opacity: 0.9;
}

.header-right {
  display: flex;
  gap: 12px;
}

.stat {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.2);
  padding: 8px 14px;
  border-radius: 20px;
  font-weight: 600;
  font-size: 16px;
}

/* Main Content - Side by Side Layout */
.main-content {
  flex: 1;
  display: flex;
  overflow: hidden;
  background: #f8f9fa;
}

/* Grid Area (Left) */
.grid-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 15px;
  overflow: hidden;
}

.progress-bar-container {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 15px;
  flex-shrink: 0;
}

.progress-bar {
  flex: 1;
  height: 10px;
  background: #e9ecef;
  border-radius: 5px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #48bb78, #38a169);
  width: 0%;
  transition: width 0.3s ease;
}

.progress-text {
  font-size: 14px;
  font-weight: 600;
  color: #4a5568;
  min-width: 50px;
}

.grid-section {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: white;
  border-radius: 12px;
  padding: 15px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.grid-wrapper {
  display: grid;
  background: #a0aec0;
  padding: 6px;
  border-radius: 8px;
  gap: 2px;
}

.grid-cell {
  background: white;
  border: 1px solid #cbd5e0;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  font-weight: bold;
}

.grid-cell.clue-cell {
  background: linear-gradient(135deg, #4a5568, #2d3748);
  color: white;
  padding: 3px;
  font-size: 9px;
  font-weight: 600;
  line-height: 1.2;
  text-align: left;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  overflow: hidden;
  pointer-events: none;
}

.clue-text {
  font-size: 9px;
  line-height: 1.2;
  word-wrap: break-word;
  width: 100%;
}

.arrow {
  position: absolute;
  color: #4299e1;
  font-weight: bold;
  font-size: 16px;
}

.arrow-right {
  right: 3px;
  top: 50%;
  transform: translateY(-50%);
}

.grid-cell.blocked-cell {
  background: #2d3748;
  border-color: #2d3748;
}

.grid-cell.input-cell {
  background: white;
  transition: all 0.2s;
}

.grid-cell.input-cell:hover {
  background: #f7fafc;
  border-color: #4299e1;
}

.grid-cell.input-cell.active {
  background: #ebf8ff;
  border-color: #3182ce;
  box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.3);
}

.grid-cell.correct {
  background: #c6f6d5;
  border-color: #48bb78;
}

.grid-cell.incorrect {
  background: #fed7d7;
  border-color: #f56565;
}

.grid-cell input {
  width: 100%;
  height: 100%;
  border: none;
  background: transparent;
  text-align: center;
  font-weight: bold;
  color: #2d3748;
  text-transform: uppercase;
  font-size: inherit;
  outline: none;
}

/* Controls Sidebar (Right) */
.controls-sidebar {
  width: 180px;
  background: white;
  padding: 15px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  border-left: 1px solid #e9ecef;
  flex-shrink: 0;
}

.control-btn {
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: white;
  border: none;
  border-radius: 12px;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  font-weight: 600;
  font-size: 14px;
  transition: all 0.3s;
  box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.control-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.control-btn:active {
  transform: translateY(0);
}

.control-btn i {
  font-size: 24px;
}

.control-btn.primary {
  background: linear-gradient(135deg, #48bb78, #38a169);
}

.control-btn.hint {
  background: linear-gradient(135deg, #ed8936, #dd6b20);
}

/* Side Menu */
.side-menu {
  position: fixed;
  top: 0;
  left: -280px;
  width: 280px;
  height: 100vh;
  background: white;
  box-shadow: 2px 0 15px rgba(0,0,0,0.2);
  transition: left 0.3s ease;
  z-index: 1000;
}

.side-menu.active {
  left: 0;
}

.menu-header {
  background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  color: white;
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.close-menu {
  background: none;
  border: none;
  color: white;
  font-size: 24px;
  cursor: pointer;
}

.menu-items {
  padding: 15px 0;
}

.menu-item {
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 15px 20px;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  cursor: pointer;
  font-size: 16px;
  transition: background 0.2s;
}

.menu-item:hover {
  background: #f8f9fa;
}

.menu-item i {
  width: 20px;
  color: #4facfe;
}

/* Modals */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.6);
  z-index: 2000;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.modal.active {
  display: flex;
}

.modal-content {
  background: white;
  border-radius: 20px;
  padding: 30px;
  text-align: center;
  max-width: 400px;
  width: 100%;
  box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.success-icon {
  font-size: 64px;
  color: #48bb78;
  margin-bottom: 16px;
}

.modal-content h2 {
  color: #2d3748;
  margin-bottom: 10px;
  font-size: 24px;
}

.modal-content h3 {
  color: #2d3748;
  margin-bottom: 16px;
  font-size: 20px;
}

.modal-content p {
  color: #4a5568;
  margin-bottom: 20px;
  font-size: 16px;
}

.modal-btns {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.btn-primary {
  background: linear-gradient(135deg, #48bb78, #38a169);
  color: white;
  border: none;
  border-radius: 10px;
  padding: 14px 24px;
  cursor: pointer;
  font-weight: 600;
  font-size: 16px;
  flex: 1;
  transition: transform 0.2s;
}

.btn-secondary {
  background: #e2e8f0;
  color: #4a5568;
  border: none;
  border-radius: 10px;
  padding: 14px 24px;
  cursor: pointer;
  font-weight: 600;
  font-size: 16px;
  flex: 1;
  transition: transform 0.2s;
}

.btn-primary:hover,
.btn-secondary:hover {
  transform: scale(1.02);
}