:root {
  --bg-color: #0b0f19;
  --card-bg: #161d2f;
  --accent-color: #00f2ff;
  --complementary: #ff4d00;
  --text-primary: #ffffff;
  --text-secondary: #94a3b8;
  --danger: #ef4444;
  --success: #10b981;
  --rank-sss: #ff00ff; /* God-like */
  --glow-shadow: 0 0 15px rgba(0, 242, 255, 0.4);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  cursor: crosshair;
}

body {
  font-family: 'Rajdhani', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  user-select: none;
}

.app-container {
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 1400px;
  height: 95vh;
  padding: 2rem;
  gap: 1.5rem;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

h1 {
  font-family: 'Orbitron', sans-serif;
  font-size: 2.5rem;
  letter-spacing: 2px;
}

h1 .accent {
  color: var(--accent-color);
  text-shadow: var(--glow-shadow);
}

.stats-panel {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}

.stop-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.key-hint-container {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  opacity: 0.6;
}

.key-cap {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 4px;
  padding: 2px 6px;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.65rem;
  color: var(--text-primary);
  box-shadow: 0 2px 0 rgba(0, 0, 0, 0.5);
}

.key-text {
  font-size: 0.65rem;
  font-family: 'Orbitron', sans-serif;
  letter-spacing: 1px;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.stat-item.danger .value {
  color: var(--danger);
}

.stat-item .label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-secondary);
  letter-spacing: 1px;
}

.stat-item .value {
  font-size: 1.8rem;
  font-weight: 700;
  font-family: 'Orbitron', sans-serif;
  color: var(--accent-color);
}

.game-view {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.grid-container {
  width: 1120px;
  height: 630px;
  background-color: var(--card-bg);
  border: 2px solid rgba(0, 242, 255, 0.2);
  display: grid;
  gap: 1px;
  position: relative;
  box-shadow: 0 0 50px rgba(0, 0, 0, 0.5);
  border-radius: 4px;
  overflow: hidden;
}

.grid-cell {
  background-color: rgba(255, 255, 255, 0.03);
  transition: background-color 0.1s ease-in; 
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.grid-cell:not(.active) {
  transition: none !important;
}

.grid-cell.active {
  background-color: var(--accent-color);
  box-shadow: inset 0 0 15px rgba(0, 242, 255, 0.8), 0 0 15px var(--accent-color);
  z-index: 10;
}

.grid-cell.active::after {
  content: '';
  width: 4px;
  height: 4px;
  background-color: var(--complementary);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--complementary);
}

.overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(11, 15, 25, 0.98);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 100;
  padding: 1rem;
}

.overlay.hidden {
  display: none;
}

.grade-container {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.grade-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-family: 'Orbitron', sans-serif;
  letter-spacing: 1px;
}

.grade-value {
  font-size: 3.5rem;
  font-weight: 700;
  font-family: 'Orbitron', sans-serif;
  text-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
}

.grade-value.sss { color: var(--rank-sss); text-shadow: 0 0 30px var(--rank-sss); }
.grade-value.ss { color: #ff0000; text-shadow: 0 0 20px #ff0000; }
.grade-value.s { color: #ffd700; text-shadow: 0 0 20px #ffd700; }
.grade-value.a { color: #00ff00; }
.grade-value.b { color: #00f2ff; }
.grade-value.c { color: #94a3b8; }

.result-layout {
  display: flex;
  width: 100%;
  max-width: 1100px;
  gap: 2rem;
  margin-bottom: 2rem;
}

.result-sidebar {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.result-graph-container {
  flex: 2;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 12px;
  padding: 1.5rem;
}

.chart-wrapper {
  flex: 1;
  min-height: 220px;
  position: relative;
}

.analysis-box {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  padding: 1.2rem;
  border-left: 4px solid var(--accent-color);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.deviation-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(0, 0, 0, 0.2);
  padding: 0.8rem 1rem;
  border-radius: 4px;
  margin-bottom: 0.5rem;
}

.deviation-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-family: 'Orbitron', sans-serif;
}

.deviation-value {
  font-size: 1.5rem;
  font-weight: 700;
  font-family: 'Orbitron', sans-serif;
  color: var(--accent-color);
}

.deviation-value.plus { color: var(--danger); }
.deviation-value.minus { color: #ff9d00; }
.deviation-value.perfect { color: var(--success); }

.analysis-title {
  color: var(--accent-color);
  font-family: 'Orbitron', sans-serif;
  font-size: 1rem;
  margin-bottom: 0.8rem;
}

.recommendation {
  margin-top: 1rem;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--success);
}

.recommendation.adjust {
  color: var(--danger);
  text-shadow: 0 0 10px rgba(239, 68, 68, 0.3);
}

.mode-selection {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.mode-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-secondary);
  padding: 0.8rem 1.5rem;
  font-family: 'Orbitron', sans-serif;
  cursor: pointer;
  border-radius: 4px;
}

.mode-btn.active {
  border-color: var(--accent-color);
  color: var(--accent-color);
  background: rgba(0, 242, 255, 0.1);
}

.glow-btn {
  background: transparent;
  color: var(--accent-color);
  border: 2px solid var(--accent-color);
  padding: 1rem 3rem;
  font-size: 1.4rem;
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  cursor: pointer;
  text-transform: uppercase;
}

.glow-btn:hover {
  background: var(--accent-color);
  color: var(--bg-color);
}

.stop-btn {
  background: transparent;
  color: var(--danger);
  border: 1px solid var(--danger);
  padding: 0.5rem 1.2rem;
  font-family: 'Orbitron', sans-serif;
  cursor: pointer;
  border-radius: 4px;
}

.hidden {
  display: none !important;
}