:root {
  --bg-primary: #0a0a0b;
  --bg-secondary: #131314;
  --bg-calendar: #1a1a1b;
  --bg-tab-active: #2c2d30;
  --bg-tab-inactive: #1c1c1e;

  --text-primary: #ffffff;
  --text-secondary: #9aa0a6;
  --text-dim: #5f6368;

  --profit-color: #4ade80;
  --profit-bg: #1c3326;
  --loss-color: #ff6b6b;
  --loss-bg: #3d1c1d;

  --border-color: #2c2d30;
  --border-active: #8fb9a8;

  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  display: flex;
  justify-content: center;
  min-height: 100vh;
}

.app-container {
  width: 100%;
  max-width: 800px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Tabs */
.tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 4px;
}

.tabs::-webkit-scrollbar {
  display: none;
}

.tab {
  background: transparent;
  color: var(--text-secondary);
  border: none;
  font-size: 14px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 8px;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
}

.tab.active {
  background: var(--bg-tab-active);
  color: var(--text-primary);
}

.tab:hover:not(.active) {
  color: var(--text-primary);
}

/* Header */
.header {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.month-title {
  font-size: 24px;
  font-weight: 600;
  margin: 0;
}

.monthly-pnl {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-tab-inactive);
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 14px;
  border: 1px solid var(--border-color);
  cursor: pointer;
}

.pnl-label {
  color: var(--text-secondary);
}

.pnl-amount {
  font-weight: 600;
}

.pnl-amount.profit {
  color: var(--profit-color);
}

.pnl-amount.loss {
  color: var(--loss-color);
}

.pnl-amount.neutral {
  color: var(--text-secondary);
}

/* Toolbar */
.toolbar {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  flex-wrap: wrap;
}

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

.icon-btn,
.text-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: color 0.2s;
}

.icon-btn:hover,
.text-btn:hover {
  color: var(--text-primary);
}

.text-btn {
  font-size: 14px;
  font-weight: 500;
  gap: 6px;
}

.import-btn {
  margin-left: 8px;
}

/* Calendar */
.calendar-container {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
  background: var(--bg-calendar);
}

.weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  text-align: center;
  border-bottom: 1px solid var(--border-color);
}

.weekdays div {
  padding: 12px 4px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  border-right: 1px solid var(--border-color);
}

.weekdays div:last-child {
  border-right: none;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  grid-auto-rows: minmax(80px, auto);
}

.day-cell {
  border-right: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 4px;
  cursor: pointer;
  transition: filter 0.2s;
  position: relative;
  min-height: 80px;
}

.day-cell:nth-child(7n) {
  border-right: none;
}

.day-cell:hover {
  filter: brightness(1.2);
}

.day-cell.other-month {
  color: var(--text-dim);
}

.day-number {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 4px;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.day-cell.today .day-number {
  background: white;
  color: black;
  font-weight: 600;
}

.day-cell.active-border {
  border: 2px solid var(--border-active);
}

.day-pnl {
  font-size: 14px;
  font-weight: 600;
}

.day-trades {
  font-size: 11px;
  color: var(--text-secondary);
}

/* specific variants */
.day-cell.profit-card {
  background-color: var(--profit-bg);
}

.day-cell.profit-card .day-pnl {
  color: var(--profit-color);
}

.day-cell.loss-card {
  background-color: var(--loss-bg);
}

.day-cell.loss-card .day-pnl {
  color: var(--loss-color);
}

.day-cell.neutral-card {
  background-color: transparent;
}

.day-cell.neutral-card .day-pnl {
  color: var(--text-secondary);
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.modal.open {
  display: flex;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(2px);
}

.modal-content {
  position: relative;
  background: var(--bg-calendar);
  border: 1px solid var(--border-color);
  padding: 24px;
  border-radius: 12px;
  width: 90%;
  max-width: 400px;
  z-index: 1001;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

#modal-title {
  font-size: 18px;
  margin-bottom: 4px;
}

.modal-date {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.form-group {
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 13px;
  color: var(--text-secondary);
}

.form-group input {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: white;
  padding: 10px 12px;
  border-radius: 6px;
  font-size: 16px;
  font-family: inherit;
}

.form-group input:focus {
  outline: none;
  border-color: var(--border-active);
}

.modal-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 24px;
}

.modal-actions-right {
  display: flex;
  gap: 12px;
}

.modal-btn {
  padding: 10px 16px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  font-family: inherit;
}

.modal-btn.outline {
  background: transparent;
  border: 1px solid var(--border-color);
  color: white;
}

.modal-btn.primary {
  background: white;
  color: black;
}

/* FAB Styles */
.fab-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 500;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.fab-button {
  background: white;
  color: black;
  border: none;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  transition: transform 0.2s, background 0.2s;
}

.fab-button svg {
  transition: transform 0.3s;
}

.fab-button.active svg {
  transform: rotate(45deg);
}

.fab-button:hover {
  transform: scale(1.05);
}

.fab-menu {
  background: var(--bg-calendar);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 16px;
  width: 260px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  gap: 12px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
}

.fab-menu.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.fab-section h4 {
  font-size: 14px;
  margin-bottom: 16px;
  font-weight: 500;
  color: var(--text-secondary);
}

.fab-input-group {
  margin-bottom: 12px;
}

.fab-input-group label {
  display: block;
  font-size: 12px;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.range-inputs {
  display: flex;
  align-items: center;
  gap: 8px;
}

.range-inputs input {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: white;
  padding: 8px;
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
}

.range-inputs input:focus {
  outline: none;
  border-color: var(--border-active);
}

.fab-divider {
  border: 0;
  height: 1px;
  background-color: var(--border-color);
  margin: 4px 0;
}

.full-width {
  width: 100%;
}

.text-danger {
  color: var(--loss-color) !important;
  border-color: var(--loss-color) !important;
}

.text-danger:hover {
  background: var(--loss-bg);
}

/* Responsive adjustments */
@media (max-width: 500px) {
  .app-container {
    padding: 8px;
  }

  .header {
    flex-direction: column;
    align-items: flex-start;
  }

  .day-cell {
    min-height: 70px;
  }

  .day-pnl {
    font-size: 12px;
  }

  .day-trades {
    font-size: 10px;
  }
}