/* ============================================
   FINANCE TRACKER - MAIN STYLESHEET
   Mobile-first responsive design
   ============================================ */

/* ============================================
   CSS RESET & BASE STYLES
   ============================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --primary: #3d8361;
  --primary-dark: #1b4332;
  --primary-light: #74c69d;
  --secondary: #a98467;
  --success: #81b29a;
  --warning: #f2cc8f;
  --danger: #e07a5f;
  --info: #3a86ff;

  /* Neutrals - Earthy Theme */
  --gray-50: #faf9f6;
  --gray-100: #f0ede9;
  --gray-200: #dedad4;
  --gray-300: #bfb8ae;
  --gray-400: #9f9689;
  --gray-500: #7f766a;
  --gray-600: #60584d;
  --gray-700: #4a433b;
  --gray-800: #322d28;
  --gray-900: #1e1a17;

  /* Semantic colors - Light Theme */
  --bg-primary: #fdfcfb;
  --bg-secondary: #f0ede9;
  --text-primary: #2d2a27;
  --text-secondary: #60584d;
  --border: #dedad4;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;

  /* Typography */
  --font-family: "Dancing Script", cursive, -apple-system, BlinkMacSystemFont,
    "Helvetica Neue", Arial, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;

  /* Border radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);

  /* Transitions */
  --transition: all 0.3s ease;
}

/* Dark Theme */
[data-theme="dark"] {
  --primary: #60a5fa;
  --primary-dark: #3b82f6;
  --primary-light: #93c5fd;
  --secondary: #94a3b8;
  --success: #34d399;
  --warning: #fbbf24;
  --danger: #f87171;
  --info: #38bdf8;

  /* Neutrals - Dark Theme */
  --gray-50: #0f172a;
  --gray-100: #1e293b;
  --gray-200: #334155;
  --gray-300: #475569;
  --gray-400: #64748b;
  --gray-500: #94a3b8;
  --gray-600: #cbd5e1;
  --gray-700: #e2e8f0;
  --gray-800: #f1f5f9;
  --gray-900: #f8fafc;

  /* Semantic colors - Dark Theme */
  --bg-primary: #1e293b;
  --bg-secondary: #0f172a;
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --border: #334155;

  /* Shadows for dark mode */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
}

html {
  scroll-behavior: smooth;
  transition: background-color 0.3s ease, color 0.3s ease;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-secondary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ============================================
   ACCESSIBILITY
   ============================================ */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary);
  color: white;
  padding: var(--spacing-sm) var(--spacing-md);
  text-decoration: none;
  border-radius: 0 0 var(--radius-md) 0;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Focus styles */
*:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

*:focus:not(:focus-visible) {
  outline: none;
}

*:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
header {
  background: var(--gray-900);
  color: white;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow-md);
}

.nav-container {
  display: flex;
  flex-direction: column;
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--spacing-md);
}

.nav-brand {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin: 0;
  font-family: "Dancing Script", cursive;
}

/* Theme Toggle Button */
.theme-toggle {
  background: var(--gray-700);
  border: 2px solid var(--gray-600);
  color: white;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: var(--transition);
}

.theme-toggle:hover {
  background: var(--gray-600);
  transform: rotate(20deg);
}

.theme-toggle:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

[data-theme="dark"] .theme-toggle {
  background: var(--gray-200);
  border-color: var(--gray-300);
}

/* Hamburger Menu */
.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
  margin-left: auto;
}

.hamburger {
  width: 24px;
  height: 3px;
  background: white;
  border-radius: 2px;
  transition: var(--transition);
}

[data-theme="dark"] .hamburger {
  background: var(--text-primary);
}

.nav-toggle[aria-expanded="true"] .hamburger:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle[aria-expanded="true"] .hamburger:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .hamburger:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* Navigation Menu - Mobile First */
.nav-menu {
  list-style: none;
  display: none;
  flex-direction: column;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-md);
}

.nav-menu.active {
  display: flex;
}

.desktop-menu {
  display: none;
}

.nav-link {
  display: block;
  color: white;
  text-decoration: none;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.nav-link:hover,
.nav-link:focus {
  background: var(--gray-700);
}

.nav-link.active {
  background: var(--primary);
}

/* ============================================
   MAIN CONTENT
   ============================================ */
main {
  flex: 1;
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-md);
}

.container {
  width: 100%;
}

/* Section Management */
.section {
  display: none;
}

.section.active {
  display: block;
  animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.section h2 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-lg);
  color: var(--gray-900);
  text-align: center;
}

.section h3 {
  font-size: var(--font-size-xl);
  margin: var(--spacing-lg) 0 var(--spacing-md);
  color: var(--gray-800);
}

/* ============================================
   HOME / LANDING PAGE
   ============================================ */
.hero {
  background: linear-gradient(
    135deg,
    var(--primary) 0%,
    var(--primary-dark) 100%
  );
  color: white;
  padding: var(--spacing-2xl) var(--spacing-lg);
  border-radius: var(--radius-xl);
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.hero h2 {
  color: white;
  font-size: clamp(1.5rem, 5vw, 3rem);
  margin-bottom: var(--spacing-sm);
}

.hero-subtitle {
  font-size: clamp(1rem, 3vw, 1.25rem);
  opacity: 0.95;
}

.quick-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.stat-card {
  background: var(--bg-primary);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.stat-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--primary);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.cta-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================
   DASHBOARD
   ============================================ */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.metric-card {
  background: linear-gradient(
    135deg,
    var(--primary) 0%,
    var(--primary-dark) 100%
  );
  color: white;
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  text-align: center;
}

.metric-label {
  font-size: var(--font-size-sm);
  font-weight: 500;
  opacity: 0.9;
  margin-bottom: var(--spacing-xs);
}

.metric-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin: 0;
}

/* Budget Status */
.budget-status {
  background: var(--bg-primary);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.budget-info p {
  margin: var(--spacing-sm) 0;
}

.progress-bar {
  width: 100%;
  height: 24px;
  background: var(--gray-200);
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin: var(--spacing-md) 0;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--success) 0%, #059669 100%);
  border-radius: var(--radius-xl);
  transition: width 0.5s ease;
}

.progress-fill.warning {
  background: linear-gradient(90deg, var(--warning) 0%, #ea580c 100%);
}

.progress-fill.danger {
  background: linear-gradient(90deg, var(--danger) 0%, #dc2626 100%);
}

.budget-message {
  font-weight: 600;
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  margin-top: var(--spacing-sm);
}

.budget-message.success {
  background: #d1fae5;
  color: #065f46;
}

.budget-message.warning {
  background: #ffedd5;
  color: #9a3412;
}

.budget-message.danger {
  background: #fee2e2;
  color: #991b1b;
}

/* Chart Container */
.chart-container {
  background: var(--bg-primary);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.chart {
  min-height: 200px;
  background: var(--gray-100);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  display: flex;
  align-items: flex-end;
  gap: var(--spacing-xs);
}

/* Top Categories */
.top-categories {
  background: var(--bg-primary);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
}

.categories-list {
  list-style: none;
}

.categories-list li {
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
}

.categories-list li:last-child {
  border-bottom: none;
}

/* ============================================
   TRANSACTIONS
   ============================================ */
.controls {
  background: var(--bg-primary);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.controls button {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  width: 100%;
  max-width: 400px;
}

.search-box {
  margin-bottom: var(--spacing-lg);
}

.search-input {
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  transition: var(--transition);
}

.search-input:focus {
  border-color: var(--primary);
}

.help-text {
  display: block;
  text-align: center;
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  margin-top: var(--spacing-xs);
}

.help-text code {
  background: var(--gray-100);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-family: monospace;
}

.search-options {
  margin-top: var(--spacing-sm);
}

.search-options label {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
}

.filter-sort {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

/* Transaction Cards - Mobile */
.transactions-cards {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.transaction-card {
  background: var(--bg-primary);
  border: 2px solid var(--border);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
}

.transaction-card-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  margin-bottom: var(--spacing-sm);
}

.transaction-description {
  font-weight: 600;
  font-size: var(--font-size-lg);
  font-family: "Dancing Script", cursive;
}

.transaction-amount {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--danger);
}

.transaction-meta {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

.transaction-actions {
  display: flex;
  gap: var(--spacing-sm);
}

/* Transaction Table - Desktop */
.transactions-table-wrapper {
  display: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.transactions-table {
  width: 100%;
  min-width: 600px;
  border: 5px solid var(--primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-primary);
  box-shadow: var(--shadow-md);
  border-collapse: collapse;
}

.transactions-table th {
  background: var(--primary);
  color: white;
  text-transform: capitalize;
  font-size: var(--font-size-base);
  padding: var(--spacing-md);
  text-align: left;
  border: 2px solid var(--border);
}

.transactions-table td {
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  padding: var(--spacing-md);
  text-align: left;
  border: 3px solid var(--border);
}

.transactions-table tbody tr:nth-child(even) {
  background-color: var(--gray-100);
}

.transactions-table tbody tr:hover {
  background-color: var(--primary-light);
  color: white;
  transition: 0.3s;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: var(--spacing-2xl);
  color: var(--text-secondary);
}

/* ============================================
   FORMS
   ============================================ */
.form {
  background: var(--bg-primary);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  color: var(--text-primary);
}

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

.form-input {
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-family: inherit;
  transition: var(--transition);
}

.form-input:focus {
  border-color: var(--primary);
}

.form-input.error {
  border-color: var(--danger);
}

.error-message {
  display: block;
  color: var(--danger);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
  font-weight: 500;
}

.form-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-xl);
}

.form-status {
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  font-weight: 500;
}

.form-status.success {
  background: #d1fae5;
  color: #065f46;
}

.form-status.error {
  background: #fee2e2;
  color: #991b1b;
}

/* Settings Form */
.settings-group {
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.settings-group legend {
  font-weight: 700;
  font-size: var(--font-size-lg);
  padding: 0 var(--spacing-sm);
}

.data-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-lg);
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  font-family: inherit;
}

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

.btn-primary:hover,
.btn-primary:focus {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover,
.btn-secondary:focus {
  background: var(--gray-600);
  transform: translateY(-1px);
}

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

.btn-danger:hover,
.btn-danger:focus {
  background: #dc2626;
  transform: translateY(-1px);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ============================================
   BALANCE & CURRENCY
   ============================================ */
.balance-card {
  background: linear-gradient(135deg, var(--success) 0%, #059669 100%);
  color: white;
  padding: var(--spacing-2xl) var(--spacing-lg);
  border-radius: var(--radius-xl);
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.balance-amount {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  margin: var(--spacing-sm) 0;
}

.balance-updated {
  font-size: var(--font-size-sm);
  opacity: 0.9;
}

.category-breakdown,
.currency-conversion {
  background: var(--bg-primary);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.breakdown-list {
  list-style: none;
}

.breakdown-list li {
  display: flex;
  justify-content: space-between;
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--border);
}

.breakdown-list li:last-child {
  border-bottom: none;
}

.conversion-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.conversion-item {
  background: var(--gray-100);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  text-align: center;
}

.currency-label {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

.currency-value {
  display: block;
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--primary);
}

/* ============================================
   HISTORY
   ============================================ */
.time-filter {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
  flex-wrap: wrap;
}

.time-filter .btn.active {
  background: var(--primary);
  color: white;
}

.monthly-comparison {
  background: var(--bg-primary);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
}

.comparison-list {
  list-style: none;
}

.comparison-list li {
  display: flex;
  justify-content: space-between;
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--border);
}

.comparison-list li:last-child {
  border-bottom: none;
}

/* ============================================
   ABOUT PAGE
   ============================================ */
.about-hero {
  background: var(--gray-100);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.container h2 {
  display: flex;
  text-align: center;
  justify-content: center;
}

.dev-img {
  width: 120px;
  height: 120px;
  margin: 0 auto var(--spacing-lg);
  background-image: url("../assets/tony.jpg");
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  border: 3px solid var(--gray-900);
  border-radius: 50%;
  box-shadow: var(--shadow-lg);
}

.features-list,
.developer-info,
.tech-stack,
.version-info {
  background: var(--bg-primary);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  text-align: center;
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.features-list ul,
.tech-list {
  list-style: none;
  padding-left: 0;
}

.features-list li {
  padding-bottom: var(--spacing-md);
}

.tech-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  justify-content: center;
  padding: 0;
}

.tech-list li {
  background: var(--gray-100);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
}

/* ============================================
   FOOTER
   ============================================ */
footer {
  background: var(--gray-900);
  color: white;
  padding: var(--spacing-lg);
  text-align: center;
  margin-top: auto;
}

footer p {
  margin: 0;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
[hidden] {
  display: none !important;
}

.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

.mt-sm {
  margin-top: var(--spacing-sm);
}
.mt-md {
  margin-top: var(--spacing-md);
}
.mt-lg {
  margin-top: var(--spacing-lg);
}
.mb-sm {
  margin-bottom: var(--spacing-sm);
}
.mb-md {
  margin-bottom: var(--spacing-md);
}
.mb-lg {
  margin-bottom: var(--spacing-lg);
}

/* ============================================
   RESPONSIVE - TABLET (768px+)
   ============================================ */
@media (min-width: 768px) {
  /* Navigation - Horizontal */
  .nav-container {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  .nav-brand {
    width: auto;
  }

  .nav-toggle {
    display: none;
  }

  .desktop-menu {
    display: flex;
    gap: var(--spacing-md);
    margin: 0;
  }

  .desktop-menu .nav-link {
    color: white;
    text-decoration: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: var(--transition);
  }

  .desktop-menu .nav-link:hover {
    background: var(--gray-700);
  }

  .nav-menu {
    display: flex;
    flex-direction: row;
    gap: var(--spacing-sm);
    margin-top: 0;
  }

  /* Buttons */
  .cta-buttons {
    flex-direction: row;
    justify-content: center;
  }

  .form-actions {
    flex-direction: row;
  }

  .data-actions {
    flex-direction: row;
  }

  /* Show cards in grid */
  .transactions-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
  }

  /* Controls button centered better */
  .controls button {
    width: auto;
    min-width: 200px;
  }
}

/* ============================================
   RESPONSIVE - DESKTOP (1024px+)
   ============================================ */
@media (min-width: 1024px) {
  /* Hide cards, show table */
  .transactions-cards {
    display: none;
  }

  .transactions-table-wrapper {
    display: block;
  }

  /* Larger spacing */
  main {
    padding: var(--spacing-xl) var(--spacing-lg);
  }

  /* Better stat card sizing */
  .stat-card {
    max-width: none;
  }
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-slide-down {
  animation: slideDown 0.3s ease-out;
}

/* Loading spinner */
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.spinner {
  border: 3px solid var(--gray-300);
  border-top-color: var(--primary);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 0.8s linear infinite;
  margin: var(--spacing-xl) auto;
}

/* ============================================
   HIGHLIGHT FOR REGEX SEARCH
   ============================================ */
mark {
  background-color: #fef08a;
  color: inherit;
  padding: 2px 4px;
  border-radius: 2px;
  font-weight: 600;
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
  header,
  footer,
  .controls,
  .form-actions,
  .btn {
    display: none;
  }

  .section {
    display: block !important;
  }

  body {
    background: white;
  }
}