:root {
  --tg-theme-bg-color: #1a1a2e;
  --tg-theme-text-color: #eee;
  --tg-theme-button-color: #16213e;
  --tg-theme-button-text-color: #fff;
  --accent-green: #22c55e;
  --accent-red: #ef4444;
  --accent-blue: #3b82f6;
  --card-bg: rgba(255,255,255,0.06);
  --border-radius: 12px;
}

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

html {
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
  background: var(--tg-theme-bg-color);
  color: var(--tg-theme-text-color);
  min-height: 100vh;
  padding: 16px;
  padding-bottom: 80px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

#app {
  max-width: 480px;
  width: 100%;
  margin: 0 auto;
}

.header {
  text-align: center;
  margin-bottom: 24px;
  padding: 20px 0;
}

.header h1 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 4px;
}

.subtitle {
  font-size: 14px;
  opacity: 0.8;
}

.balance-card {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 20px;
  margin-bottom: 20px;
  border: 1px solid rgba(255,255,255,0.08);
}

.balance-label, .profit-label {
  font-size: 12px;
  opacity: 0.7;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.balance-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--accent-green);
  margin-bottom: 12px;
}

.profit-value {
  font-size: 18px;
  font-weight: 600;
}

.assets-section {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 20px;
  margin-bottom: 20px;
  border: 1px solid rgba(255,255,255,0.08);
}

.assets-section h3 {
  font-size: 16px;
  margin-bottom: 16px;
  opacity: 0.9;
}

.assets-hint {
  font-size: 13px;
  opacity: 0.85;
  margin-bottom: 12px;
  line-height: 1.4;
}

.asset-category {
  margin-bottom: 16px;
}

.asset-category:last-child { margin-bottom: 0; }

.asset-category h4 {
  font-size: 13px;
  color: var(--accent-blue);
  margin-bottom: 6px;
  opacity: 0.95;
}

.asset-category p {
  font-size: 12px;
  opacity: 0.85;
  line-height: 1.4;
}

.params-section {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 20px;
  margin-bottom: 20px;
  border: 1px solid rgba(255,255,255,0.08);
}

.params-section h3 {
  font-size: 16px;
  margin-bottom: 16px;
  opacity: 0.9;
}

.params-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.params-row:last-child { margin-bottom: 0; }

.params-row select {
  padding: 8px 12px;
  background: rgba(0,0,0,0.3);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  color: var(--tg-theme-text-color);
  font-size: 14px;
  min-width: 100px;
}

.trading-panel {
  position: static !important;
  top: auto !important;
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 20px;
  margin-bottom: 20px;
  border: 1px solid rgba(255,255,255,0.08);
}


.trading-panel h3 {
  font-size: 16px;
  margin-bottom: 16px;
  opacity: 0.9;
}

.chart-placeholder {
  background: rgba(0,0,0,0.2);
  border-radius: 8px;
  padding: 24px;
  text-align: center;
  margin-bottom: 16px;
  min-height: 120px;
}

.chart-placeholder-text {
  font-size: 14px;
  opacity: 0.8;
  margin-bottom: 8px;
}

.chart-price {
  font-size: 24px;
  font-weight: 700;
  color: var(--accent-blue);
  margin-bottom: 12px;
}

.chart-canvas-wrap {
  width: 100%;
  min-height: 100px;
  height: clamp(100px, 28vh, 180px);
  margin: 12px 0;
  position: relative;
  overflow: hidden;
}

.chart-canvas-wrap canvas {
  display: block;
  max-width: 100%;
}

@media (max-width: 420px) {
  .chart-placeholder {
    padding: 12px 16px;
  }
  .chart-canvas-wrap {
    height: clamp(90px, 25vh, 160px);
    margin: 8px 0;
  }
  .chart-price {
    font-size: 20px;
  }
}

@media (max-width: 360px) {
  body {
    padding: 12px;
  }
  .chart-placeholder {
    padding: 10px 12px;
  }
  .chart-canvas-wrap {
    min-height: 80px;
    height: clamp(80px, 22vh, 140px);
  }
}

.pending-trade {
  padding: 10px 14px;
  background: rgba(59, 130, 246, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.4);
  border-radius: 8px;
  margin-bottom: 12px;
  font-size: 14px;
  color: var(--accent-blue);
  text-align: center;
}

.tradingview-link {
  display: inline-block;
  color: var(--accent-blue);
  font-size: 13px;
  text-decoration: none;
}

.pending-trade {
  background: rgba(59, 130, 246, 0.2);
  border: 1px solid rgba(59, 130, 246, 0.4);
  border-radius: 8px;
  padding: 10px 14px;
  margin-bottom: 12px;
  font-size: 14px;
  text-align: center;
  color: var(--accent-blue);
}

.admin-section {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 20px;
  margin-bottom: 20px;
  border: 1px solid rgba(255,255,255,0.08);
}

.admin-section h3 {
  font-size: 16px;
  margin-bottom: 16px;
  opacity: 0.9;
}

.admin-section input {
  background: rgba(0,0,0,0.3);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  color: var(--tg-theme-text-color);
}

.admin-section {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 20px;
  margin-bottom: 20px;
  border: 1px solid rgba(255,255,255,0.08);
}

.admin-section h3 {
  font-size: 16px;
  margin-bottom: 16px;
  opacity: 0.9;
}

.admin-section input {
  background: rgba(0,0,0,0.3);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  color: var(--tg-theme-text-color);
}

.trade-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.btn {
  padding: 14px 20px;
  border: none;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.1s, opacity 0.2s;
}

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

.btn-buy {
  background: var(--accent-green);
  color: #fff;
}

.btn-sell {
  background: var(--accent-red);
  color: #fff;
}

.quick-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.action-link {
  flex: 1;
  min-width: 100px;
  padding: 12px 16px;
  background: var(--card-bg);
  border-radius: 10px;
  color: var(--tg-theme-text-color);
  text-decoration: none;
  font-size: 14px;
  text-align: center;
  border: 1px solid rgba(255,255,255,0.08);
}

.language-section h3 {
  font-size: 14px;
  margin-bottom: 12px;
  opacity: 0.9;
}

.lang-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.lang-btn {
  padding: 10px 14px;
  background: var(--card-bg);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  color: var(--tg-theme-text-color);
  font-size: 13px;
  cursor: pointer;
}

.lang-btn:hover {
  background: rgba(255,255,255,0.1);
}

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  padding: 12px 24px;
  background: rgba(0,0,0,0.85);
  border-radius: 12px;
  font-size: 14px;
  opacity: 0;
  transition: transform 0.3s, opacity 0.3s;
  z-index: 1000;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}