@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

:root {
  --cyan: #00d4ff;
  --cyan-dim: rgba(0,212,255,0.10);
  --red: #ff4757;
  --red-dim: rgba(255,71,87,0.10);
  --purple: #7c5cfc;
  --purple-dim: rgba(124,92,252,0.12);
  --surface: rgba(255,255,255,0.03);
  --surface-hover: rgba(255,255,255,0.05);
  --border: rgba(255,255,255,0.06);
  --border-glow: rgba(0,212,255,0.12);
  --matrix: #00e5a0;
  --matrix-dim: rgba(0,229,160,0.08);
  --gold: #e8a838;
  --gold-dim: rgba(232,168,56,0.10);
  --sand: #c9b896;
  --sand-dim: rgba(201,184,150,0.08);
}

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

html { font-size: 15px; -webkit-font-smoothing: antialiased; }

body {
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  background: #080a12;
  color: #c8d2e4;
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 20% 10%, rgba(0,212,255,0.03), transparent),
    radial-gradient(ellipse 60% 40% at 80% 80%, rgba(0,229,160,0.02), transparent),
    linear-gradient(rgba(0,212,255,0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,255,0.018) 1px, transparent 1px);
  background-size: 100%, 100%, 48px 48px, 48px 48px;
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 200px 200px;
  pointer-events: none;
  z-index: 0;
}

#app-root { position: relative; z-index: 1; }

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  flex-shrink: 0;
  transition: transform 0.3s cubic-bezier(0.16,1,0.3,1), filter 0.3s;
}

.logo-icon:hover {
  transform: translateY(-2px);
  filter: drop-shadow(0 0 10px rgba(0,212,255,0.35));
}

.header-brand {
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.brand-name {
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: #e4eaf4;
}

.brand-dot {
  font-size: 18px;
  color: #00d4ff;
  font-weight: 300;
}

.brand-sub {
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.10em;
  color: #8f99a8;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

.sim-indicator {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.06em;
  color: #00e5a0;
  opacity: 0;
  transition: opacity 0.3s;
  font-weight: 600;
}

.header-clock {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: #a0aab8;
  letter-spacing: 0.02em;
}

.glass {
  background: var(--surface);
  border: 1px solid var(--border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 12px;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.glass:hover {
  border-color: var(--border-glow);
  box-shadow: 0 0 24px rgba(0,212,255,0.04);
}

.metric-card {
  position: relative;
  overflow: hidden;
  padding-left: 18px;
  min-width: 0;
}

.metric-card::after {
  content: '';
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 0;
  width: 2px;
  border-radius: 1px;
  background: var(--role-color, #3d4656);
  opacity: 0.8;
}

.metric-card[data-role="return"] { --role-color: #00d4ff; }
.metric-card[data-role="winrate"] { --role-color: #c9b896; }
.metric-card[data-role="mdd"] { --role-color: #ff4757; }
.metric-card[data-role="sharpe"] { --role-color: #00e5a0; }
.metric-card[data-role="wintrades"] { --role-color: #00e5a0; }
.metric-card[data-role="atrstops"] { --role-color: #ff4757; }

.metric-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0.35;
}

.metric-value {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 1.65rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
  transition: color 0.3s;
}

.metric-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #a0aab8;
  margin-bottom: 6px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.metric-sub {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: #8f99a8;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: rgba(255,255,255,0.06);
  outline: none;
  cursor: pointer;
  --fill-color: #00d4ff;
}

input[type="range"]::-moz-range-progress {
  background: var(--fill-color);
  border-radius: 2px;
  height: 4px;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(0,212,255,0.5), 0 0 3px rgba(0,212,255,0.7);
  cursor: pointer;
  transition: box-shadow 0.2s, transform 0.15s;
}

input[type="range"]::-webkit-slider-thumb:hover {
  box-shadow: 0 0 16px rgba(0,212,255,0.65), 0 0 5px rgba(0,212,255,0.9);
  transform: scale(1.15);
}

input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--cyan);
  border: none;
  box-shadow: 0 0 10px rgba(0,212,255,0.5);
  cursor: pointer;
}

input[type="range"].range-red {
  --fill-color: #ff4757;
}

input[type="range"].range-red::-webkit-slider-thumb {
  background: var(--red);
  box-shadow: 0 0 10px rgba(255,71,87,0.5), 0 0 3px rgba(255,71,87,0.7);
}

input[type="range"].range-red::-moz-range-thumb {
  background: var(--red);
  box-shadow: 0 0 10px rgba(255,71,87,0.5);
}

.config-label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 8px;
}

.config-label span:first-child {
  font-size: 0.78rem;
  color: #a0aab8;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.config-label .val {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--cyan);
}

.config-label .val-red { color: var(--red); }

.leverage-input {
  font-family: 'JetBrains Mono', monospace;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: #e4eaf4;
  padding: 8px 12px;
  font-size: 0.85rem;
  width: 100%;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.leverage-input:focus {
  border-color: rgba(232,168,56,0.4);
  box-shadow: 0 0 12px rgba(232,168,56,0.12);
}

.token-btn {
  font-family: 'JetBrains Mono', monospace;
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  border: 1px solid var(--border);
  background: transparent;
  color: #8f99a8;
  transition: all 0.2s;
}

.token-btn:hover {
  border-color: rgba(0,212,255,0.25);
  color: #c8d2e4;
}

.token-btn.active {
  border-color: var(--cyan);
  color: var(--cyan);
  background: var(--cyan-dim);
  box-shadow: 0 0 12px rgba(0,212,255,0.10);
}

.interval-btn {
  font-family: 'JetBrains Mono', monospace;
  padding: 5px 10px;
  border-radius: 5px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  border: 1px solid var(--border);
  background: transparent;
  color: #7d8a9e;
  transition: all 0.2s;
}

.interval-btn:hover {
  border-color: rgba(232,168,56,0.25);
  color: #a0aab8;
}

.interval-btn.active {
  border-color: var(--gold);
  color: var(--gold);
  background: rgba(232,168,56,0.08);
  box-shadow: 0 0 10px rgba(232,168,56,0.10);
}

.coin-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 5px;
}

.coin-grid .token-btn {
  padding: 5px 4px;
  font-size: 0.68rem;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.strategy-btn {
  font-family: 'JetBrains Mono', monospace;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  border: 1px solid var(--border);
  background: transparent;
  color: #7d8a9e;
  cursor: pointer;
  transition: all 0.2s;
  flex: 1;
  text-align: center;
}

.strategy-btn:hover {
  border-color: rgba(0,229,160,0.25);
  color: #a0aab8;
}

.strategy-btn.active {
  border-color: var(--matrix);
  color: var(--matrix);
  background: rgba(0,229,160,0.08);
  box-shadow: 0 0 10px rgba(0,229,160,0.10);
}

.strategy-desc {
  margin-top: 6px;
  font-size: 0.72rem;
  color: #6b7a8d;
  letter-spacing: 0.02em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.custom-token-row {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-top: 6px;
}

.custom-token-label {
  font-size: 0.68rem;
  color: #7d8a9e;
  flex-shrink: 0;
}

.custom-token-input {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  padding: 4px 6px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  color: #c8d2e4;
  width: 100%;
  outline: none;
  transition: border-color 0.2s;
  text-transform: uppercase;
}

.custom-token-input:focus {
  border-color: rgba(0,212,255,0.35);
  box-shadow: 0 0 8px rgba(0,212,255,0.08);
}

.custom-token-input::placeholder {
  color: #5a6577;
  font-size: 0.68rem;
}

.custom-token-suffix {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  color: #7d8a9e;
  flex-shrink: 0;
}

.chart-container {
  width: 100%;
  height: 320px;
  border-radius: 8px;
  overflow: hidden;
}

.chart-container-sm {
  width: 100%;
  height: 180px;
  border-radius: 8px;
  overflow: hidden;
}

.trade-log {
  height: 200px;
  overflow-y: auto;
  border: 1px solid rgba(255,255,255,0.04);
  border-radius: 6px;
  background: rgba(0,0,0,0.2);
  padding: 8px 10px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  line-height: 1.8;
  color: #8f99a8;
}

.trade-log::-webkit-scrollbar {
  width: 4px;
}

.trade-log::-webkit-scrollbar-track {
  background: transparent;
}

.trade-log::-webkit-scrollbar-thumb {
  background: rgba(0,212,255,0.15);
  border-radius: 2px;
}

.trade-log-row {
  padding: 2px 0;
  border-bottom: 1px solid rgba(255,255,255,0.02);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.trade-log-row.open { color: #00e5a0; }
.trade-log-row.close-win { color: #00d4ff; }
.trade-log-row.close-loss { color: #ff4757; }
.trade-log-empty { color: #5a6577; font-style: italic; padding: 40px 0; text-align: center; }

.chart-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  color: #8f99a8;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 8px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chart-title::before {
  content: '';
  display: inline-block;
  width: 3px;
  height: 12px;
  border-radius: 1px;
  background: #00d4ff;
  opacity: 0.7;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-in {
  animation: fadeInUp 0.5s cubic-bezier(0.16,1,0.3,1) forwards;
  opacity: 0;
}

.animate-delay-1 { animation-delay: 0.05s; }
.animate-delay-2 { animation-delay: 0.1s; }
.animate-delay-3 { animation-delay: 0.15s; }
.animate-delay-4 { animation-delay: 0.2s; }

.positive { color: #00d4ff; }
.negative { color: #ff4757; }
.neutral { color: #c9b896; }

.save-btn {
  font-family: 'JetBrains Mono', monospace;
  width: 100%;
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid rgba(232,168,56,0.30);
  background: rgba(232,168,56,0.06);
  color: #e8a838;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.16,1,0.3,1);
}

.save-btn::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: 9px;
  padding: 1px;
  background: linear-gradient(135deg, #e8a838, #00d4ff, #e8a838);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.3s;
}

.save-btn:hover {
  background: rgba(232,168,56,0.10);
  border-color: rgba(232,168,56,0.50);
  box-shadow: 0 0 18px rgba(232,168,56,0.15), 0 0 5px rgba(232,168,56,0.25);
  color: #f0be50;
}

.save-btn:hover::before {
  opacity: 1;
}

.save-btn:active {
  transform: scale(0.98);
}

.save-btn.loading {
  pointer-events: none;
  border-color: rgba(0,212,255,0.35);
  color: #00d4ff;
  background: rgba(0,212,255,0.05);
  animation: neonPulse 1.2s ease-in-out infinite;
}

.save-btn.success {
  border-color: rgba(0,229,160,0.5);
  color: #00e5a0;
  background: rgba(0,229,160,0.08);
  box-shadow: 0 0 20px rgba(0,229,160,0.12);
}

.save-btn.error {
  border-color: rgba(255,71,87,0.5);
  color: #ff4757;
  background: rgba(255,71,87,0.08);
  box-shadow: 0 0 20px rgba(255,71,87,0.12);
}

@keyframes neonPulse {
  0%, 100% { box-shadow: 0 0 6px rgba(0,212,255,0.10); }
  50% { box-shadow: 0 0 20px rgba(0,212,255,0.30), 0 0 8px rgba(0,212,255,0.50); }
}

.share-btns {
  display: flex;
  gap: 6px;
}

.share-btn {
  font-family: 'JetBrains Mono', monospace;
  flex: 1;
  padding: 7px 8px;
  border-radius: 6px;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  border: 1px solid var(--border);
  background: transparent;
  color: #8f99a8;
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
}

.share-btn:hover {
  border-color: rgba(0,212,255,0.3);
  color: #c8d2e4;
  background: rgba(0,212,255,0.04);
}

.share-btn.flash {
  border-color: var(--matrix);
  color: var(--matrix);
  background: rgba(0,229,160,0.08);
}

.config-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(4,5,10,0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.config-modal-overlay.open {
  display: flex;
}

.config-modal {
  background: #0d0f18;
  border: 1px solid rgba(0,212,255,0.12);
  border-radius: 12px;
  max-width: 420px;
  width: 100%;
  padding: 20px;
  box-shadow: 0 0 40px rgba(0,212,255,0.06), 0 16px 32px rgba(0,0,0,0.4);
  animation: tutorialFadeIn 0.25s cubic-bezier(0.16,1,0.3,1);
}

.config-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  color: #e4eaf4;
}

.config-modal-close {
  background: none;
  border: none;
  color: #6b7a8d;
  font-size: 1.1rem;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  transition: all 0.2s;
}

.config-modal-close:hover {
  color: #e4eaf4;
  background: rgba(255,255,255,0.06);
}

.config-modal-section {
  margin-bottom: 12px;
}

.config-modal-label {
  font-size: 0.72rem;
  color: #8f99a8;
  margin-bottom: 8px;
  font-weight: 500;
}

.config-modal-row {
  display: flex;
  gap: 8px;
}

.config-code-field {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  padding: 8px 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  color: #c8d2e4;
  flex: 1;
  outline: none;
  min-width: 0;
}

.config-code-field:focus {
  border-color: rgba(0,212,255,0.35);
}

.config-code-field::placeholder {
  color: #5a6577;
}

.config-code-btn {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: transparent;
  color: #8f99a8;
  cursor: pointer;
  transition: all 0.2s;
  flex-shrink: 0;
}

.config-code-btn:hover {
  border-color: rgba(0,212,255,0.3);
  color: #c8d2e4;
}

.config-code-btn-primary {
  border-color: rgba(0,229,160,0.3);
  color: #00e5a0;
  background: rgba(0,229,160,0.06);
}

.config-code-btn-primary:hover {
  background: rgba(0,229,160,0.12);
}

.config-modal-divider {
  height: 1px;
  background: rgba(255,255,255,0.04);
  margin: 14px 0;
}

.save-spinner {
  display: inline-block;
  width: 12px;
  height: 12px;
  border: 2px solid rgba(0,212,255,0.15);
  border-top-color: #00d4ff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  vertical-align: middle;
  margin-right: 6px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.mode-toggle {
  display: flex;
  position: relative;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 3px;
  cursor: pointer;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.mode-toggle .toggle-option {
  flex: 1;
  text-align: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 5px 0;
  color: #7d8a9e;
  position: relative;
  z-index: 1;
  transition: color 0.3s;
  user-select: none;
}

.mode-toggle .toggle-option.active { color: #e4eaf4; }

.mode-toggle .toggle-indicator {
  position: absolute;
  top: 3px;
  left: 3px;
  width: calc(50% - 3px);
  height: calc(100% - 6px);
  border-radius: 6px;
  background: rgba(255,255,255,0.05);
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.mode-toggle.live {
  border-color: rgba(0,229,160,0.40);
  box-shadow: 0 0 12px rgba(0,229,160,0.15);
}

.mode-toggle.live .toggle-indicator {
  left: 50%;
  background: rgba(0,229,160,0.10);
  box-shadow: 0 0 10px rgba(0,229,160,0.30);
}

.mode-toggle.loading .toggle-indicator {
  animation: neonPulse 1s ease-in-out infinite;
}

.mode-toggle.loading {
  border-color: rgba(0,229,160,0.50);
}

.data-loading-overlay {
  position: absolute;
  inset: 0;
  background: rgba(8,10,18,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  z-index: 10;
  backdrop-filter: blur(2px);
}

.data-loading-overlay .spinner-ring {
  width: 32px;
  height: 32px;
  border: 2px solid rgba(0,212,255,0.12);
  border-top-color: #00d4ff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@media (max-width: 1024px) {
  .chart-container { height: 260px; }
  .chart-container-sm { height: 150px; }
  .metric-value { font-size: 1.3rem; }
}

.lang-dropdown {
  position: relative;
}

.lang-toggle-btn {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 5px 12px;
  border-radius: 4px;
  border: 1px solid rgba(255,255,255,0.10);
  background: transparent;
  color: #a0aab8;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 5px;
}

.lang-toggle-btn:hover {
  border-color: rgba(0,212,255,0.30);
  color: #e4eaf4;
}

.lang-flag {
  font-size: 0.88rem;
  line-height: 1;
}

.lang-code {
  max-width: 70px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lang-arrow {
  font-size: 0.65rem;
  opacity: 0.6;
  margin-left: 2px;
}

.lang-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: #0d0f18;
  border: 1px solid rgba(0,212,255,0.15);
  border-radius: 8px;
  min-width: 140px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5), 0 0 20px rgba(0,212,255,0.05);
  display: none;
  z-index: 100;
  overflow: hidden;
  animation: langMenuIn 0.15s ease;
}

.lang-menu.open {
  display: block;
}

@keyframes langMenuIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.lang-menu-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: #8f99a8;
  cursor: pointer;
  transition: all 0.15s;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.lang-menu-item:hover {
  background: rgba(0,212,255,0.06);
  color: #c8d2e4;
}

.lang-menu-item.active {
  color: #00d4ff;
  background: rgba(0,212,255,0.08);
}

.lang-menu-item .lang-flag {
  font-size: 1rem;
}

.lang-toggle-btn:active {
  transform: scale(0.96);
}

.ad-slot {
  border: 1px dashed rgba(255,255,255,0.06);
  border-radius: 8px;
  overflow: hidden;
  background: rgba(255,255,255,0.01);
  position: relative;
}

.ad-slot-banner {
  max-width: 768px;
  min-height: 90px;
  margin: 12px auto;
}

.ad-slot-sidebar {
  min-height: 250px;
}

.ad-slot-mid {
  min-height: 90px;
}

.ad-slot-bottom {
  min-height: 90px;
  margin: 0 auto 8px;
}

.ad-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  min-height: inherit;
}

.ad-placeholder span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.55rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.04);
  padding: 2px 8px;
  border-radius: 3px;
}

.strategy-rules-title {
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 10px;
  color: #8f99a8;
  margin-bottom: 4px;
}

input[type="range"].range-gold {
  --fill-color: #e8a838;
}

input[type="range"].range-gold::-webkit-slider-thumb {
  background: var(--gold);
  box-shadow: 0 0 10px rgba(232,168,56,0.5), 0 0 3px rgba(232,168,56,0.7);
}

input[type="range"].range-gold::-moz-range-thumb {
  background: var(--gold);
  box-shadow: 0 0 10px rgba(232,168,56,0.5);
}

.help-btn {
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.10);
  background: transparent;
  color: #a0aab8;
  cursor: pointer;
  transition: all 0.2s;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.help-btn:hover {
  border-color: rgba(0,212,255,0.40);
  color: #00d4ff;
  box-shadow: 0 0 10px rgba(0,212,255,0.15);
}

.tutorial-overlay {
  position: fixed;
  inset: 0;
  background: rgba(4,5,10,0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.tutorial-overlay.open {
  display: flex;
}

.tutorial-modal {
  background: #0d0f18;
  border: 1px solid rgba(0,212,255,0.12);
  border-radius: 16px;
  max-width: 580px;
  width: 100%;
  box-shadow: 0 0 60px rgba(0,212,255,0.08), 0 24px 48px rgba(0,0,0,0.5);
  animation: tutorialFadeIn 0.35s cubic-bezier(0.16,1,0.3,1);
}

@keyframes tutorialFadeIn {
  from { opacity: 0; transform: translateY(16px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.tutorial-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 0;
}

.tutorial-title {
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: #e4eaf4;
  letter-spacing: -0.01em;
}

.tutorial-close {
  background: none;
  border: none;
  color: #6b7a8d;
  font-size: 1.2rem;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  transition: all 0.2s;
}

.tutorial-close:hover {
  color: #e4eaf4;
  background: rgba(255,255,255,0.06);
}

.tutorial-body {
  padding: 20px 24px;
  min-height: 200px;
}

.tutorial-step {
  display: none;
}

.tutorial-step.active {
  display: block;
  animation: tutorialStepIn 0.25s ease;
}

@keyframes tutorialStepIn {
  from { opacity: 0; transform: translateX(10px); }
  to { opacity: 1; transform: translateX(0); }
}

.step-icon {
  font-size: 1.8rem;
  margin-bottom: 12px;
}

.step-heading {
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  color: #c8d2e4;
  margin-bottom: 10px;
}

.step-text {
  font-size: 0.82rem;
  color: #8f99a8;
  line-height: 1.65;
  white-space: pre-line;
}

.tutorial-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px 20px;
  border-top: 1px solid rgba(255,255,255,0.04);
}

.tutorial-nav-btn {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 8px 16px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: transparent;
  color: #7d8a9e;
  cursor: pointer;
  transition: all 0.2s;
}

.tutorial-nav-btn:hover {
  border-color: rgba(0,212,255,0.3);
  color: #c8d2e4;
}

.tutorial-nav-btn.primary {
  border-color: rgba(0,212,255,0.35);
  background: rgba(0,212,255,0.08);
  color: #00d4ff;
}

.tutorial-nav-btn.primary:hover {
  background: rgba(0,212,255,0.15);
  box-shadow: 0 0 10px rgba(0,212,255,0.10);
}

.tutorial-dots {
  display: flex;
  gap: 6px;
}

.tutorial-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  transition: all 0.25s;
}

.tutorial-dot.active {
  background: #00d4ff;
  box-shadow: 0 0 6px rgba(0,212,255,0.4);
}

.nav-link {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  font-weight: 600;
  color: #a0aab8;
  text-decoration: none;
  padding: 5px 12px;
  border-radius: 4px;
  border: 1px solid rgba(255,255,255,0.08);
  transition: all 0.2s;
  white-space: nowrap;
}

.nav-link:hover {
  color: #00d4ff;
  border-color: rgba(0,212,255,0.25);
}