:root {
  --bg: #030309;
  --surface: #0a0a12;
  --glass: rgba(12, 12, 30, 0.42);
  --text: #f0f0ff;
  --muted: #a0a0e0;
  --primary: #00ffff;
  --accent: #ff00ff;
  --danger: #ff3366;
  --success: #00ffcc;
  --radius: 16px;
  --glow: 0 0 20px rgba(0, 255, 255, 0.25);
  --intense-glow: 0 0 40px rgba(0, 255, 255, 0.35);
  --shadow: 0 15px 40px rgba(0,0,0,0.75);
}

[data-theme="light"] {
  --bg: #f8faff;
  --surface: #ffffff;
  --glass: rgba(255,255,255,0.72);
  --text: #0a0a3a;
  --muted: #6c7a9c;
  --primary: #0077ff;
  --accent: #00cc99;
  --glow: 0 0 20px rgba(0, 119, 255, 0.3);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  background: radial-gradient(ellipse at top left, rgba(0,255,255,0.08) 0%, transparent 60%), var(--bg);
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: 
    repeating-linear-gradient(0deg, transparent 0px, transparent 2px, rgba(0,255,255,0.012) 2px, rgba(0,255,255,0.012) 4px),
    linear-gradient(transparent, rgba(0,0,0,0.4));
  pointer-events: none;
  z-index: -2;
  animation: scan 10s linear infinite;
  opacity: 0.6;
}

@keyframes scan {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100%); }
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(255,0,255,0.04) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
  animation: pulse-bg 15s ease-in-out infinite;
}

@keyframes pulse-bg {
  0%,100% { opacity: 0.3; transform: scale(1); }
  50%     { opacity: 0.5; transform: scale(1.05); }
}

.app {
  display: flex;
  gap: 20px;
  max-width: 1300px;
  margin: 0 auto;
  padding: 16px 20px;
  min-height: calc(100vh - 32px);
  position: relative;
  z-index: 1;
}

.sidebar {
  width: 220px;
  background: var(--glass);
  backdrop-filter: blur(20px) saturate(200%);
  border-radius: var(--radius);
  border: 1px solid rgba(0,255,255,0.18);
  padding: 20px 16px;
  box-shadow: var(--shadow), var(--glow);
  flex-shrink: 0;
  transition: all 0.4s ease;
}

.logo {
  font-size: 1.9rem;
  font-weight: 900;
  background: linear-gradient(90deg, var(--primary), var(--accent), #ffffff, var(--primary));
  background-size: 400% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: gradient-flow 12s linear infinite;
  margin-bottom: 2rem;
  text-shadow: var(--glow);
}

@keyframes gradient-flow {
  0% { background-position: 0% 50%; }
  100% { background-position: 400% 50%; }
}

/* HEADER */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.6rem;
  flex-wrap: wrap;
  gap: 12px;
}

.glitch {
  font-size: clamp(2rem, 5vw, 2.6rem);
  font-weight: 900;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary));
  background-size: 400%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: glitch 6s linear infinite, gradient-flow 15s linear infinite;
  text-shadow: var(--glow);
}

@keyframes glitch {
  0%,100% { text-shadow: 0 0 10px var(--primary); }
  2% { text-shadow: 4px 0 0 var(--accent), -4px 0 0 var(--primary); }
  5% { text-shadow: -4px 0 0 var(--accent), 4px 0 0 var(--primary); }
  8% { text-shadow: 0; }
}

.subtitle {
  color: var(--muted);
  font-size: 1rem;
  opacity: 0.92;
}

/* WORDS – lebih presisi */
.words {
  background: var(--glass);
  backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid rgba(0,255,255,0.2);
  border-radius: var(--radius);
  padding: 18px 22px;
  font-family: 'JetBrains Mono', monospace;
  font-size: clamp(1.1rem, 1.95vw, 1.38rem);
  line-height: 1.9;
  min-height: 130px;
  box-shadow: inset 0 0 30px rgba(0,0,0,0.6), var(--glow);
  overflow-y: auto;
  max-height: 42vh;
  scrollbar-width: thin;
  scrollbar-color: var(--primary) transparent;
}

.word {
  margin: 0 7px 4px 0;
  padding: 3px 7px;
  border-radius: 8px;
  transition: all 0.14s ease;
  background: rgba(255,255,255,0.01);
}

.word.active {
  background: rgba(0,255,255,0.16);
  box-shadow: 0 0 22px rgba(0,255,255,0.5);
  transform: scale(1.04);
  animation: breathe-active 2.8s ease-in-out infinite;
}

@keyframes breathe-active {
  0%,100% { transform: scale(1.04); }
  50%     { transform: scale(1.07); }
}

.correct { color: var(--success); background: rgba(0,255,204,0.12); text-shadow: 0 0 10px var(--success); }
.wrong  { color: var(--danger);  background: rgba(255,51,102,0.16); text-shadow: 0 0 10px var(--danger); }

.char { transition: all 0.06s ease; }
.correct-char { color: var(--success); text-shadow: 0 0 12px var(--success); }
.wrong-char  { color: var(--danger);  text-shadow: 0 0 12px var(--danger); }

/* INPUT + TIMER */
.typing-box {
  display: flex;
  gap: 12px;
  margin: 1.1rem 0;
  align-items: center;
}

#input {
  flex: 1;
  padding: 13px 18px;
  font-size: 1.12rem;
  font-family: 'JetBrains Mono', monospace;
  background: var(--glass);
  border: 1.5px solid transparent;
  border-radius: var(--radius);
  color: var(--text);
  backdrop-filter: blur(16px);
  transition: all 0.2s ease;
}

#input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 32px rgba(0,255,255,0.4), inset 0 0 14px rgba(0,255,255,0.15);
}

.timer-glow {
  min-width: 85px;
  background: linear-gradient(135deg, rgba(0,255,255,0.22), rgba(255,0,255,0.15));
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.85rem;
  font-weight: 900;
  color: var(--primary);
  text-shadow: var(--glow);
  padding: 9px 14px;
  box-shadow: var(--intense-glow);
}

/* STATS */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(105px, 1fr));
  gap: 10px;
  margin-top: 0.9rem;
}

.stat.neon {
  background: var(--glass);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(0,255,255,0.22);
  border-radius: var(--radius);
  padding: 0.9rem 1.1rem;
  text-align: center;
  box-shadow: var(--glow);
  transition: transform 0.3s ease;
}

.stat.neon:hover { transform: translateY(-4px); }

.stat .label { font-size: 0.78rem; color: var(--muted); margin-bottom: 3px; letter-spacing: 0.6px; }
.stat .value { font-size: 2rem; font-weight: 900; color: var(--primary); text-shadow: var(--glow); }

/* RESULT – cinematic + pulse */
.result-overlay {
  position: fixed;
  inset: 0;
  background: rgba(3,3,9,0.96);
  backdrop-filter: blur(16px);
  display: none;
  place-items: center;
  z-index: 9999;
}

.result-card {
  background: var(--glass);
  backdrop-filter: blur(36px);
  border: 2px solid var(--primary);
  border-radius: 30px;
  padding: 2.6rem 2rem;
  text-align: center;
  box-shadow: 0 0 90px rgba(0,255,255,0.5);
  max-width: 450px;
  width: 90%;
  animation: pulse-card 2s ease-in-out infinite;
}

@keyframes pulse-card {
  0%,100% { box-shadow: 0 0 90px rgba(0,255,255,0.5); }
  50%     { box-shadow: 0 0 120px rgba(0,255,255,0.7); }
}

.result-card h2 {
  font-size: 2.4rem;
  color: var(--primary);
  margin-bottom: 1.2rem;
  text-shadow: var(--glow);
}

.final-kpm {
  font-size: clamp(5rem, 14vw, 8rem);
  font-weight: 900;
  color: var(--success);
  text-shadow: 0 0 30px rgba(0,255,204,0.6);
  margin: 0.4rem 0;
  animation: pulse-text 3s ease-in-out infinite;
}

@keyframes pulse-text {
  0%,100% { transform: scale(1); }
  50%     { transform: scale(1.05); }
}

/* RESPONSIVE */
@media (max-width: 1024px) {
  .app { gap: 16px; padding: 12px 16px; }
  .sidebar { width: 200px; }
  .words { font-size: clamp(1rem, 1.8vw, 1.28rem); padding: 16px 18px; }
}

@media (max-width: 768px) {
  .app { flex-direction: column; }
  .sidebar { width: 100%; padding: 16px; }
  .header { flex-direction: column; align-items: flex-start; gap: 10px; }
  .typing-box { flex-direction: column; gap: 10px; }
  .timer-glow { width: 100%; min-width: auto; }
  .stats { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .words { font-size: 1rem; line-height: 1.75; padding: 12px; }
  .stat .value { font-size: 1.7rem; }
  .final-kpm { font-size: 4.5rem; }
}