:root {
  color-scheme: dark;
  --bg: #0d1117;
  --panel: #161b22;
  --accent: #58a6ff;
  --accent-soft: rgba(88, 166, 255, 0.3);
  --text: #c9d1d9;
  --muted: #7a828e;
  --danger: #f47067;
  font-size: 16px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Fira Code", "Source Code Pro", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  background: radial-gradient(circle at top left, rgba(88, 166, 255, 0.1), transparent 45%),
    radial-gradient(circle at bottom right, rgba(244, 112, 103, 0.12), transparent 50%), var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.app {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  width: 100%;
}

.panel {
  background: var(--panel);
  border: 1px solid rgba(88, 166, 255, 0.15);
  padding: 1.5rem;
  border-radius: 16px;
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.35);
  position: relative;
  overflow: hidden;
}

.table-panel,
.params-panel {
  overflow: visible;
}

.panel::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(135deg, transparent 60%, rgba(88, 166, 255, 0.12));
  opacity: 0;
  transition: opacity 0.4s ease;
}

.panel:hover::after {
  opacity: 1;
}

.header {
  grid-column: 1 / -1;
  text-align: center;
}

.header h1 {
  margin: 0 0 0.25rem;
  font-size: clamp(1.8rem, 5vw, 2.5rem);
  letter-spacing: 0.03em;
}

.subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  align-items: end;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.9rem;
}

.control-group label {
  color: var(--muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-size: 0.75rem;
}

.control-group input,
.control-group select {
  background: rgba(22, 27, 34, 0.7);
  border: 1px solid rgba(88, 166, 255, 0.25);
  color: var(--text);
  padding: 0.6rem 0.75rem;
  border-radius: 8px;
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.control-group input[type="range"] {
  appearance: none;
  height: 6px;
  padding: 0;
  border-radius: 999px;
  background: rgba(88, 166, 255, 0.2);
  border: none;
}

.control-group input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid #0d1117;
  box-shadow: 0 0 0 2px rgba(88, 166, 255, 0.25);
  cursor: pointer;
  transition: transform 0.2s ease;
}

.control-group input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid #0d1117;
  box-shadow: 0 0 0 2px rgba(88, 166, 255, 0.25);
  cursor: pointer;
  transition: transform 0.2s ease;
}

.control-group input[type="range"]:active::-webkit-slider-thumb,
.control-group input[type="range"]:active::-moz-range-thumb {
  transform: scale(1.1);
}

#strengthSpreadValue {
  color: var(--text);
  margin-left: 0.35rem;
  font-variant-numeric: tabular-nums;
  text-transform: none;
  font-weight: 600;
}

.control-group input:focus,
.control-group select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(88, 166, 255, 0.25);
}

.simulate-btn {
  grid-column: 1 / -1;
  font-size: 1.1rem;
  font-weight: 600;
  padding: 0.85rem;
  border-radius: 12px;
  border: none;
  background: linear-gradient(135deg, var(--accent), #7ee787);
  color: #0a0f16;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.3s ease, filter 0.2s ease;
  font-family: inherit;
}

.simulate-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 28px rgba(88, 166, 255, 0.25);
}

.simulate-btn:active {
  transform: translateY(1px);
  filter: brightness(0.95);
}

.simulate-btn[disabled] {
  background: linear-gradient(135deg, rgba(88, 166, 255, 0.4), rgba(126, 231, 135, 0.4));
  cursor: not-allowed;
  opacity: 0.6;
}

.status {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.status-item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 1rem;
  letter-spacing: 0.02em;
}

.status-item .label {
  color: var(--muted);
  text-transform: uppercase;
  font-size: 0.75rem;
}

.status-item .value {
  font-size: 1.4rem;
  font-variant-numeric: tabular-nums;
}

.progress {
  position: relative;
  height: 8px;
  border-radius: 999px;
  background: rgba(88, 166, 255, 0.15);
  overflow: hidden;
}

.progress-bar {
  position: absolute;
  inset: 0;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), #7ee787);
  transition: width 0.2s ease;
}

.status-log {
  font-size: 0.85rem;
  color: var(--muted);
  padding: 0.75rem 1rem;
  background: rgba(22, 27, 34, 0.8);
  border-radius: 10px;
  min-height: 3rem;
  border: 1px dashed rgba(88, 166, 255, 0.2);
}

.table-panel {
  grid-column: 1 / -1;
}

.panel-header {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.panel-header h2 {
  margin: 0;
  font-size: 1.4rem;
  letter-spacing: 0.04em;
}

.panel-header p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.params-list {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.table-wrapper {
  max-height: 480px;
  overflow: auto;
  border-radius: 12px;
  border: 1px solid rgba(88, 166, 255, 0.15);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

thead {
  position: sticky;
  top: 0;
  background: rgba(13, 17, 23, 0.95);
  backdrop-filter: blur(8px);
  z-index: 1;
}

thead th {
  text-align: left;
  padding: 0.75rem 1rem;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  position: relative;
}

tbody td {
  padding: 0.65rem 1rem;
  border-top: 1px solid rgba(88, 166, 255, 0.08);
}

.strength-bar {
  position: relative;
  height: 6px;
  border-radius: 999px;
  background: rgba(88, 166, 255, 0.1);
  overflow: hidden;
}

.strength-bar span {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, rgba(88, 166, 255, 0.8), rgba(126, 231, 135, 0.7));
}

.expected-rate {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.win-rate,
.difference {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.win-rate.positive,
.difference.positive {
  color: #7ee787;
}

.win-rate.negative,
.difference.negative {
  color: var(--danger);
}

.insights {
  grid-column: 1 / -1;
}

.insights-content {
  border: 1px solid rgba(88, 166, 255, 0.18);
  border-radius: 12px;
  padding: 1.2rem 1.4rem;
  background: rgba(22, 27, 34, 0.65);
  color: var(--text);
  font-size: 0.9rem;
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.insight-list {
  margin: 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 0.35rem;
}

.insight-highlight {
  color: #7ee787;
}

.insight-warning {
  color: var(--danger);
}

.conclusions {
  grid-column: 1 / -1;
  display: none;
}

.conclusions.visible {
  display: block;
}

.conclusions-body {
  border: 1px solid rgba(88, 166, 255, 0.15);
  border-radius: 12px;
  padding: 1.1rem 1.3rem;
  background: rgba(22, 27, 34, 0.6);
  color: var(--text);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  font-size: 0.95rem;
  line-height: 1.6;
}

.footer {
  text-align: center;
  padding: 1.5rem;
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: auto;
}

@media (max-width: 640px) {
  .app {
    padding: 1.5rem 1rem 3rem;
  }

  .controls {
    grid-template-columns: 1fr;
  }

  .simulate-btn {
    font-size: 1rem;
  }
}