/* CSS Variables & Theme */
:root {
  /* Colors - Derived from a premium, modern palette (Dark mode preference initially) */
  --color-bg-primary: #0f172a; /* Slate 900 */
  --color-bg-secondary: #1e293b; /* Slate 800 */
  --color-bg-tertiary: #334155; /* Slate 700 */

  --color-text-primary: #f8fafc; /* Slate 50 */
  --color-text-secondary: #94a3b8; /* Slate 400 */
  --color-text-highlight: #38bdf8; /* Sky 400 */

  --color-accent: #6366f1; /* Indigo 500 */
  --color-success: #10b981; /* Emerald 500 */
  --color-danger: #ef4444; /* Red 500 */
  --color-warning: #f59e0b; /* Amber 500 */

  /* Typography */
  --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;

  /* Borders & Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --border-color: #334155; /* Slate 700 */

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

/* Reset & Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family-base);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html {
  overflow-y: scroll;
}

/* Utilities */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.text-success {
  color: var(--color-success);
}

.text-danger {
  color: var(--color-danger);
}

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

.card {
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-md);
}

/* Interactive Elements */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  background-color: var(--color-accent);
  color: white;
  border: none;
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-sm);
  line-height: 1;
  text-decoration: none;
}

.btn-primary:hover {
  background-color: #4f46e5;
  /* Indigo 600 */
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-danger {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  background-color: var(--color-bg-secondary);
  color: var(--color-danger);
  border: 1px solid var(--color-danger);
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-sm);
  line-height: 1;
  text-decoration: none;
}

.btn-danger:hover {
  background-color: var(--color-danger);
  color: white;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-danger:active {
  transform: translateY(0);
}

.btn-icon {
  width: 1.1em;
  height: 1.1em;
  stroke-width: 2.5;
}

.category-pill:hover {
  opacity: 0.8;
  background-color: var(--color-accent) !important;
  color: white;
}

.account-cell:hover {
  color: var(--color-text-highlight) !important;
  text-decoration-color: var(--color-text-highlight) !important;
}

.category-legend-item:hover {
  color: var(--color-text-highlight) !important;
  text-decoration-color: var(--color-text-highlight) !important;
}

/* Header Styles */
.app-header {
  margin-bottom: var(--spacing-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-controls {
  display: flex;
  align-items: center;
}

/* Mobile Responsive Table Styles */
.mobile-meta {
  display: none;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: 4px;
}

.th-date {
  width: 15%;
}

.th-desc {
  width: 30%;
}

.th-cat {
  width: 20%;
}

.th-acc {
  width: 20%;
}

.th-amt {
  width: 15%;
}

@media (max-width: 768px) {
  .app-header {
    margin-bottom: var(--spacing-lg);
  }

  .btn-text {
    display: none;
  }

  .col-category,
  .col-account {
    display: none !important;
  }

  .mobile-meta {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
  }

  /* Adjust widths for 3-column layout */
  .th-date {
    width: 20% !important;
  }

  .th-desc {
    width: 55% !important;
  }

  .th-amt {
    width: 25% !important;
  }

  .container {
    padding: 0 var(--spacing-sm);
  }
}

.transaction-description {
  overflow-wrap: break-word;
  word-break: break-word;
  white-space: collapse;
}

/* Toast Notifications */
#toast-container {
  position: fixed;
  bottom: var(--spacing-xl);
  right: var(--spacing-xl);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  z-index: 9999;
}

.toast {
  background-color: var(--color-bg-secondary);
  color: var(--color-text-primary);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border-left: 4px solid var(--color-accent);
  min-width: 250px;
  max-width: 400px;
  animation: slideIn 0.3s ease-out forwards;
  cursor: pointer;
  font-size: var(--font-size-sm);
  display: flex;
  align-items: center;
}

.toast.success {
  border-left-color: var(--color-success);
}

.toast.error {
  border-left-color: var(--color-danger);
}

.toast.info {
  border-left-color: var(--color-accent);
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }

  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes fadeOut {
  to {
    opacity: 0;
    transform: translateY(10px);
  }
}

@media (max-width: 768px) {
  #toast-container {
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    left: var(--spacing-md);
  }

  .toast {
    width: 100%;
    min-width: 0;
    max-width: none;
  }
}

/* Filter Bar */
.filter-bar {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    align-items: center;
  }

.search-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  margin-left: auto;
}

@media (max-width: 768px) {
  .search-container {
    margin-left: 0px;
    width: 100%;
  }
}