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

:root {
    --bg: #07070e;
    --card: rgba(14,14,26,0.94);
    --border: rgba(124,58,237,0.22);
    --border-dim: rgba(255,255,255,0.06);
    --purple: #8b5cf6;
    --purple-glow: rgba(139,92,246,0.18);
    --cyan: #22d3ee;
    --green: #34d399;
    --red: #f87171;
    --yellow: #fbbf24;
    --text: #f1f5f9;
    --sub: #94a3b8;
    --muted: #475569;
    --mono: 'JetBrains Mono', monospace;
    --sans: 'Space Grotesk', sans-serif;
}

html, body {
    height:100%;
}

body {
    font-family: var(--sans);
    background: var(--bg);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    position: relative;
}

.blob{
    position: fixed;
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
    filter: blur(90px);
}

.b1 {
    width:420px;
    height:420px;
    background: rgba(139,92,246,0.16);
    top: -120px;
    left: -120px;
    animation: d1 11s ease-in-out infinite alternate;
}

.b2 {
    width: 320px;
    height: 320px;
    background: rgba(34,211,238,0.10);
    bottom: -80px;
    right: -80px;
    animation: d2 14s ease-in-out infinite alternate;
}

.b3 {
    width: 180px;
    height: 180px;
    background: rgba(139,92,246,0.08);
    top: 55%;
    left: 50%;
    transform: translate(-50%,-50%);
    animation: d3 9s ease-in-out infinite alternate;
}

@keyframes d1 {
    to {
        transform: translate(70px,55px);
    }
}

@keyframes d2 {
    to {
        transform: translate(-55px,-70px);
    }
}

@keyframes d3 {
    from {
        transform: translate(-50%,-50%) scale(1);
    }
    to {
        transform: translate(-50%,-50%) scale(1.5);
    }
}

.card {
    position: relative;
    z-index: 1;
    width: 420px;
    padding: 40px 36px 36px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 24px;
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    box-shadow: 0 0 0 1px rgba(139,92,246,0.08),
                0 30px 70px rgba(0,0,0,0.55),
                inset 0 1px 0 rgba(255,255,255,0.04);
}

.screen {
    display: none;
}

.screen.active {
    display: block;
}

.eyebrow {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.18em;
    color: var(--purple);
    text-transform: uppercase;
    margin-bottom: 10px;
}

.main-title {
    font-size: 38px;
    font-weight: 700;
    color: var(--text);
    line-height: 1.1;
    margin-bottom: 6px;
}

.main-sub {
    font-size: 15px;
    color: var(--sub);
    margin-bottom: 32px;
}

.field {
    margin-bottom: 18px;
}

.field label {
    display: block;
    font-size: 11px;
    font-weight: 600;
    color: var(--muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 8px;
}
 
.field select {
  width: 100%;
  padding: 12px 40px 12px 14px;
  background: rgba(255,255,255,0.035);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 500;
  outline: none;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='7' viewBox='0 0 12 7' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L6 6L11 1' stroke='%238b5cf6' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  transition: border-color .2s,box-shadow .2s;
}

.field select:focus {
  border-color: var(--purple);
  box-shadow: 0 0 0 3px var(--purple-glow);
}

.field select option {
  background: #111126;
  color: var(--text);
}

.btn {
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: 14px;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: opacity .2s, transform .15s, box-shadow .2s;
  margin-top: 10px;
  letter-spacing: 0.02em;
}

.btn-primary {
  background: linear-gradient(135deg, #8b5cf6 0%, #22d3ee 100%);
  color: #fff;
  box-shadow: 0 4px 22px rgba(139,92,246,0.32);
}

.btn-primary:hover {
  opacity: .9;
  transform: translateY(-1px);
  box-shadow: 0 7px 28px rgba(139,92,246,0.45);
}

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

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--sub);
}

.btn-ghost:hover {
  border-color: var(--purple);
  color: var(--text);
  background: var(--purple-glow);
}

.game-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
}

.range-label {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
}

.range-label strong {
  color: var(--cyan);
  font-weight: 700;
}

.att-wrap {
  text-align: right;
}

.att-label {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 2px
}

.att-num {
  font-family: var(--mono);
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  line-height:1
}

.bar-track {
  background: rgba(255,255,255,0.06);
  border-radius: 99px;
  height: 3px;
  margin-bottom: 28px;
  overflow: hidden;
}
.bar-fill {
  height: 100%;
  border-radius: 99px;
  background: var(--green);
  transition: width .4s cubic-bezier(.4,0,.2,1), background .4s ease;
}

.terminal-wrap {
  position: relative;
  margin-bottom: 8px;
}

.terminal-input {
  width: 100%;
  padding: 22px 20px;
  background: rgba(255,255,255,0.025);
  border: 1px solid var(--border);
  border-radius: 16px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 48px;
  font-weight: 700;
  text-align: center;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
  -moz-appearance: textfield;
  caret-color: var(--purple);
}

.terminal-input::-webkit-outer-spin-button,
.terminal-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
}

.terminal-input:focus {
  border-color: var(--purple);
  box-shadow: 0 0 0 3px var(--purple-glow),
              0 0 40px rgba(139,92,246,0.1);
}

.terminal-input::placeholder {
  color: rgba(255,255,255,0.1);
}
 
.hint-line {
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-bottom: 16px;
  transition: color .25s;
}

.hint-line.up {
  color: var(--green);
}

.hint-line.down {
  color: var(--red);
}

.history-section {
  margin-top: 22px;
}

.history-label {
  font-size: 10px;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.history-scroll {
  display: flex;
  flex-direction: column;
  gap: 5px;
  max-height: 155px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(139,92,246,.25) transparent;
}

.h-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 13px;
  background: rgba(255,255,255,0.022);
  border: 1px solid var(--border-dim);
  border-radius: 10px;
  animation: slideIn .22s ease;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-5px);
  } to {
    opacity: 1;
    transform: translateY(0);
  }
}

.h-idx {
  font-family: var(--mono);
  font-size:11px;
  color:var(--muted);
  min-width:28px
}

.h-val {
  font-family: var(--mono);
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
}

.h-dir {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 4px;
}

.h-dir.up {
  color: var(--green);
}

.h-dir.down {
  color: var(--red);
}

.end-icon {
  display: block;
  font-size: 54px;
  text-align: center;
  margin-bottom: 10px;
}

.end-title {
  font-size: 30px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 6px;
}

.end-title.win {
  color: var(--green);
}

.end-title.lose {
  color: var(--red);
}

.end-caption {
  text-align: center;
  font-size: 14px;
  color: var(--sub);
  margin-bottom: 4px;
}

.end-number {
  display: block;
  text-align: center;
  font-family: var(--mono);
  font-size: 72px;
  font-weight: 700;
  margin: 16px 0 24px;
  line-height: 1;
}

.end-number.win {
  color: var(--green);
  text-shadow: 0 0 40px rgba(52,211,153,.35);
}

.end-number.lose {
  color: var(--red);
  text-shadow: 0 0 40px rgba(248,113,113,.35);
}

@keyframes shake {
  0%, 100% {
    transform: translateX(0);
  }
  20% {
    transform:translateX(-7px);
  }
  40% {
    transform:translateX(7px);
  }
  60% {
    transform:translateX(-4px);
  }
  80% {
    transform:translateX(4px);
  }
}

.shake {
  animation: shake .32s ease;
}

.divider {
  height: 1px;
  background: var(--border-dim);
  margin: 24px 0
}