body {
  font-family: 'Roboto', sans-serif;
  background: #121212;
  color: #eee;
  margin: 0;
  padding: 0;
}

.navbar {
  background: #1f1f1f;
  padding: 15px 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.nav-brand { font-size: 20px; color: #fff; font-weight: bold; text-decoration: none; }
.nav-menu { list-style: none; display: flex; gap: 15px; margin: 0; padding: 0; }
.nav-link { color: #ddd; text-decoration: none; transition: 0.3s; }
.nav-link:hover { color: #4cafef; }

.container { max-width: 1200px; margin: 20px auto; padding: 0 15px; }
.main-grid { display: grid; grid-template-columns: 300px 1fr; gap: 20px; }

.card {
  background: #1e1e1e;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.5);
  margin-bottom: 20px;
}
.card h1,h3 { color: #4cafef; }

.btn {
  background: #4cafef;
  color: #fff;
  padding: 8px 16px;
  border-radius: 6px;
  text-decoration: none;
  display: inline-block;
  border: none;
  cursor: pointer;
  transition: 0.3s;
}
.btn:hover { background: #2196f3; }

.form-input, select {
  width: 100%;
  padding: 8px;
  margin: 5px 0;
  border-radius: 6px;
  border: 1px solid #444;
  background: #2a2a2a;
  color: #eee;
}

.table-wrapper { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; text-align: left; }
.table th, .table td { padding: 12px; border-bottom: 1px solid #333; }
.table th { background: #2a2a2a; color: #4cafef; }
.table tr:hover { background: #222; }

footer {
  margin-top: 40px;
  padding: 20px;
  background: #1f1f1f;
  text-align: center;
  color: #aaa;
  border-top: 1px solid #333;
}
footer a { color: #4cafef; text-decoration: none; }

.flash-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 9999;
}
.flash {
  margin-bottom: 10px;
  padding: 10px 15px;
  border-radius: 6px;
  color: #fff;
  min-width: 200px;
}
.flash-success { background: #28a745; }
.flash-info { background: #17a2b8; }
.flash-warning { background: #ffc107; color: #000; }
.flash-danger { background: #dc3545; }
.spinner-group { display: flex; align-items: stretch; gap: 8px; width: 100%; }
.spinner-input { text-align: center; font-weight: 600; letter-spacing: 1px; }
.spinner-btn {
  background: #2a2a2a; color: #eee; border: 1px solid #444;
  border-radius: 6px; padding: 8px 12px; cursor: pointer;
  user-select: none; transition: 0.2s;
}
.spinner-btn:hover { background: #333; }
.filter-row { display: grid; grid-template-columns: 1fr 2fr auto; gap: 10px; align-items: center; }
.hint { color: #aaa; font-size: 12px; margin-top: 4px; }

@media (max-width: 640px) {
  .filter-row { grid-template-columns: 1fr; }
  .spinner-group { gap: 6px; }
  .main-grid { grid-template-columns: 1fr; }
}
.trade-form .form-row {
  display: flex;
  gap: 10px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.trade-form .form-row .form-input {
  flex: 1 1 30%; /* примерно 2-3 поля в ряд */
  min-width: 120px;
  padding: 8px;
  background-color: #1e1e1e;
  border: 1px solid #444;
  border-radius: 5px;
  color: #fff;
}

.trade-form .form-row .full-width {
  flex: 1 1 100%; /* комментарий на всю ширину */
}

.trade-form .btn-success {
  background-color: #4caf50;
  border: none;
  padding: 10px 20px;
  color: #fff;
  cursor: pointer;
  border-radius: 5px;
}

.trade-form .btn-success:hover {
  background-color: #45a049;
}