:root {
  --primary: #4361ee;
  --primary-dark: #3a56d4;
  --secondary: #3f37c9;
  --accent: #4895ef;
  --success: #4cc9f0;
  --danger: #f72585;
  --warning: #f8961e;
  --info: #7209b7;
  --light: #f8f9fa;
  --dark: #212529;
  --gray: #6c757d;
  --light-gray: #e9ecef;
  --dark-bg: #121212;
  --dark-card: #1e1e1e;
  --dark-text: #e0e0e0;
  --dark-border: #333;
}

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

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: var(--light);
  color: var(--dark);
  transition: all 0.3s ease;
  line-height: 1.6;
}

body.dark {
  background: var(--dark-bg);
  color: var(--dark-text);
}

/* Header Styles */
header {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  padding: 1rem 2rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.header-content {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

header h1 {
  font-size: 1.8rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.header-actions {
  display: flex;
  gap: 0.8rem;
}

/* Button Styles */
.btn {
  padding: 0.6rem 1.2rem;
  border: none;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.1);
  color: white;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
}

.btn:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn.primary {
  background: var(--accent);
}

.btn.primary:hover {
  background: #3a7bd5;
}

/* Main Content */
main {
  max-width: 1400px;
  margin: 2rem auto;
  padding: 0 2rem;
}

/* Dashboard Styles */
.dashboard-container {
  margin-bottom: 2rem;
}

.summary-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.card {
  background: white;
  border-radius: 10px;
  padding: 1.5rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.card.positive {
  border-left: 4px solid var(--success);
}

.card.negative {
  border-left: 4px solid var(--danger);
}

.card-icon {
  font-size: 1.8rem;
  color: var(--primary);
}

.card-content h3 {
  font-size: 1rem;
  color: var(--gray);
  margin-bottom: 0.5rem;
}

.card-content p {
  font-size: 1.5rem;
  font-weight: 700;
}

body.dark .card {
  background: var(--dark-card);
  color: var(--dark-text);
}

/* Chart Containers */
.chart-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.chart-container {
  background: white;
  border-radius: 10px;
  padding: 1.5rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.chart-container h2 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

body.dark .chart-container {
  background: var(--dark-card);
}

/* Trade Management */
.trade-management {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 1.5rem;
}

@media (max-width: 1200px) {
  .trade-management {
    grid-template-columns: 1fr;
  }
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.section-header h2 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.search-filter {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.search-filter input,
.search-filter select {
  padding: 0.5rem 0.8rem;
  border: 1px solid var(--light-gray);
  border-radius: 6px;
  background: white;
}

body.dark .search-filter input,
body.dark .search-filter select {
  background: var(--dark-card);
  border-color: var(--dark-border);
  color: var(--dark-text);
}

/* Form Styles */
#addTradeSection {
  height: fit-content;
  position: sticky;
  top: 1rem;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--gray);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

body.dark .form-group label {
  color: var(--dark-text);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--light-gray);
  border-radius: 6px;
  font-size: 1rem;
  transition: border 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(67, 97, 238, 0.2);
}

.form-group textarea {
  min-height: 100px;
  resize: vertical;
}

body.dark .form-group input,
body.dark .form-group select,
body.dark .form-group textarea {
  background: var(--dark-card);
  border-color: var(--dark-border);
  color: var(--dark-text);
}

/* Table Styles */
.table-container {
  overflow-x: auto;
}

#tradeTable {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

#tradeTable th {
  background: var(--primary);
  color: white;
  padding: 0.8rem 1rem;
  text-align: left;
  position: sticky;
  top: 0;
}

#tradeTable td {
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--light-gray);
}

#tradeTable tr:last-child td {
  border-bottom: none;
}

#tradeTable tr:hover {
  background: rgba(67, 97, 238, 0.05);
}

body.dark #tradeTable th {
  background: var(--dark-card);
}

body.dark #tradeTable td {
  border-color: var(--dark-border);
}

body.dark #tradeTable tr:hover {
  background: rgba(255, 255, 255, 0.05);
}

/* Profit/Loss Colors */
.profit {
  color: var(--success);
  font-weight: 600;
}

.loss {
  color: var(--danger);
  font-weight: 600;
}

/* Action Buttons */
.action-btn {
  padding: 0.4rem 0.8rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.9rem;
}

.edit-btn {
  background: var(--warning);
  color: white;
}

.delete-btn {
  background: var(--danger);
  color: white;
}

.action-btn:hover {
  opacity: 0.8;
  transform: translateY(-2px);
}

/* Footer */
footer {
  text-align: center;
  padding: 1.5rem;
  background: var(--light-gray);
  color: var(--gray);
  margin-top: 2rem;
}

body.dark footer {
  background: var(--dark-card);
  color: var(--dark-text);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    align-items: flex-start;
  }

  .header-actions {
    width: 100%;
    justify-content: flex-end;
  }

  .chart-row {
    grid-template-columns: 1fr;
  }

  #tradeTable {
    display: block;
    width: 100%;
    overflow-x: auto;
  }
}

/* Animation */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.5s ease forwards;
}