/* =========================================================================
   SPTG Pilot Aptitude Platform — Grid Memory Module Styling
   7x4 Matrix, Cognitive Distractor Phase & Dual-Direction Recall
   ========================================================================= */

.grid-workspace {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 1rem;
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  align-items: start;
}

@media (max-width: 1100px) {
  .grid-workspace {
    grid-template-columns: 1fr;
  }
}

/* Play Column */
.grid-play-column {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.grid-stage-card {
  background: var(--bg-surface, #121926);
  border: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
  border-radius: 12px;
  padding: 1rem;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  position: relative;
  overflow: hidden;
}

/* Multi-Phase Progress Header */
.grid-phase-progress-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  margin-bottom: 0.85rem;
}

.grid-phase-step {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(10, 15, 26, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 6px;
  padding: 0.4rem 0.65rem;
  transition: all 0.2s ease;
}

.grid-phase-step .step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-muted, #7c8ba1);
}

.grid-phase-step .step-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted, #7c8ba1);
}

.grid-phase-step.active {
  background: rgba(0, 229, 255, 0.12);
  border-color: rgba(0, 229, 255, 0.5);
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.2);
}

.grid-phase-step.active .step-num {
  background: #00e5ff;
  color: #000000;
}

.grid-phase-step.active .step-label {
  color: #ffffff;
}

.grid-phase-step.completed {
  border-color: rgba(32, 197, 109, 0.4);
}

.grid-phase-step.completed .step-num {
  background: #20c56d;
  color: #000000;
}

/* Stage HUD */
.grid-stage-hud {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(10, 15, 26, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  padding: 0.5rem 0.85rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.grid-hud-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 60px;
}

.grid-hud-stat span {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted, #7c8ba1);
}

.grid-hud-stat strong {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary, #ffffff);
}

.grid-hud-spacer {
  flex: 1;
}

.grid-phase-mission,
.grid-timer-mission {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.grid-phase-badge {
  font-family: var(--font-mono, monospace);
  font-size: 0.85rem;
  font-weight: 800;
  color: #00e5ff;
  background: rgba(0, 229, 255, 0.15);
  padding: 0.15rem 0.55rem;
  border-radius: 4px;
  border: 1px solid rgba(0, 229, 255, 0.35);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.grid-timer-mission strong {
  font-family: var(--font-mono, monospace);
  font-size: 1.25rem;
  font-weight: 700;
  color: #f7bf2a;
}

/* Grid Board Component */
.grid-board-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  background: radial-gradient(circle at center, #0f172a 0%, #080c14 100%);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  padding: 1rem;
  min-height: 480px;
  position: relative;
}

.grid-board-header-row {
  display: grid;
  grid-template-columns: 36px repeat(var(--grid-cols, 4), 1fr);
  gap: 0.4rem;
  text-align: center;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-muted, #7c8ba1);
}

.grid-matrix-container {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  width: 100%;
}

.grid-matrix-row {
  display: grid;
  grid-template-columns: 36px repeat(var(--grid-cols, 4), 1fr);
  gap: 0.4rem;
  align-items: center;
}

.grid-row-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  font-family: var(--font-mono, monospace);
  font-size: 0.75rem;
  color: var(--text-muted, #7c8ba1);
}

.grid-row-bulb {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.grid-row-bulb.active {
  background: #f7bf2a;
  border-color: #f7bf2a;
  box-shadow: 0 0 8px rgba(247, 191, 42, 0.8);
}

/* Individual Cell Styling */
.grid-cell {
  background: var(--bg-tertiary, #1a2333);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  min-height: 58px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  cursor: default;
  transition: all 0.15s ease;
  user-select: none;
}

.grid-cell .coord-tag {
  position: absolute;
  top: 3px;
  left: 5px;
  font-size: 0.6rem;
  font-family: var(--font-mono, monospace);
  color: rgba(255, 255, 255, 0.35);
}

.grid-cell .code-val {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 1.35rem;
  font-weight: 800;
  color: #00e5ff;
  letter-spacing: 0.08em;
  transition: opacity 0.2s ease;
}

.grid-cell.hidden-code .code-val {
  color: rgba(255, 255, 255, 0.15);
  font-weight: 400;
}

.grid-cell.clickable {
  cursor: pointer;
}

.grid-cell.clickable:hover {
  background: rgba(0, 229, 255, 0.15);
  border-color: #00e5ff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 229, 255, 0.25);
}

.grid-cell.target-highlight {
  border: 2px solid #f7bf2a !important;
  background: rgba(247, 191, 42, 0.2) !important;
  box-shadow: 0 0 16px rgba(247, 191, 42, 0.5) !important;
  animation: pulse-target 1.5s infinite ease-in-out;
}

@keyframes pulse-target {
  0%, 100% { border-color: #f7bf2a; }
  50% { border-color: #00e5ff; }
}

.grid-cell.flash-correct {
  background: rgba(32, 197, 109, 0.35) !important;
  border-color: #20c56d !important;
}

.grid-cell.flash-wrong {
  background: rgba(255, 77, 79, 0.35) !important;
  border-color: #ff4d4f !important;
}

/* Distractor Overlay Banner */
.grid-distractor-banner {
  background: linear-gradient(90deg, rgba(26, 20, 48, 0.95), rgba(38, 24, 68, 0.95));
  border: 1px solid rgba(192, 132, 252, 0.4);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  margin-top: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.grid-distractor-prompt {
  font-family: var(--font-mono, monospace);
  font-size: 1.4rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: 0.05em;
}

.grid-distractor-input-form {
  display: flex;
  gap: 0.5rem;
}

.grid-distractor-input {
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(192, 132, 252, 0.5);
  border-radius: 6px;
  padding: 0.45rem 0.75rem;
  font-family: var(--font-mono, monospace);
  font-size: 1.1rem;
  color: #ffffff;
  width: 140px;
  text-align: center;
}

.grid-distractor-input:focus {
  outline: none;
  border-color: #00e5ff;
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.4);
}

/* Recall Choices Dock */
.grid-recall-dock {
  background: rgba(16, 26, 46, 0.95);
  border: 1px solid rgba(0, 229, 255, 0.3);
  border-radius: 8px;
  padding: 0.85rem 1.1rem;
  margin-top: 0.75rem;
}

.grid-recall-prompt-text {
  font-size: 0.85rem;
  color: var(--text-secondary, #cbd5e1);
  margin-bottom: 0.65rem;
  display: block;
}

.grid-recall-choice-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 0.5rem;
}

.grid-choice-btn {
  background: var(--bg-tertiary, #1a2333);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 6px;
  padding: 0.55rem 0.75rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
}

.grid-choice-btn .code {
  font-family: var(--font-mono, monospace);
  font-size: 1.15rem;
  font-weight: 700;
  color: #00e5ff;
}

.grid-choice-btn .shortcut {
  font-size: 0.65rem;
  color: var(--text-muted, #7c8ba1);
}

.grid-choice-btn:hover {
  background: rgba(0, 229, 255, 0.15);
  border-color: #00e5ff;
  transform: translateY(-2px);
}

/* Footer & Hints */
.grid-stage-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.75rem;
  padding: 0 0.35rem;
  font-size: 0.75rem;
  color: var(--text-muted, #7c8ba1);
}

.grid-feedback {
  font-style: italic;
}

.grid-hotkey-strip {
  display: flex;
  gap: 0.6rem;
}

.grid-hotkey-strip kbd {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 4px;
  padding: 0.1rem 0.35rem;
  font-family: var(--font-mono, monospace);
  font-size: 0.7rem;
}

/* Sidebar */
.grid-sidebar {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.grid-side-card {
  background: var(--bg-surface, #121926);
  border: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
  border-radius: 12px;
  padding: 1rem;
}

.grid-preset-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.4rem;
  margin-bottom: 0.85rem;
}

.grid-preset-btn {
  background: var(--bg-tertiary, #1a2333);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  padding: 0.45rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary, #cbd5e1);
  text-align: left;
  cursor: pointer;
  transition: all 0.15s ease;
}

.grid-preset-btn small {
  display: block;
  font-size: 0.65rem;
  font-weight: 400;
  color: var(--text-muted, #7c8ba1);
}

.grid-preset-btn:hover {
  border-color: rgba(0, 229, 255, 0.4);
  color: #ffffff;
}

.grid-preset-btn.active {
  background: rgba(0, 229, 255, 0.15);
  border-color: #00e5ff;
  color: #ffffff;
}

.grid-action-dock {
  display: grid;
  grid-template-columns: 1fr 1fr 1.5fr;
  gap: 0.5rem;
  margin-top: 0.5rem;
}