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

:root {
  /* Light Theme Colors - Updated Palette */
  --light-primary: #6366f1;
  --light-primary-hover: #4f46e5;
  --light-secondary: #64748b;
  --light-success: #10b981;
  --light-warning: #f59e0b;
  --light-danger: #ef4444;
  --light-background: #f1f5f9; /* Neutral light gray */
  --light-surface: #ffffff;
  --light-text-primary: #0f172a;
  --light-text-secondary: #475569;
  --light-border: #cbd5e1;

  /* Dark Theme Colors - Updated Palette */
  --dark-primary: #8b5cf6;
  --dark-primary-hover: #7c3aed;
  --dark-secondary: #94a3b8;
  --dark-success: #22c55e;
  --dark-warning: #f59e0b;
  --dark-danger: #f87171;
  --dark-background: #0f172a; /* Neutral dark slate */
  --dark-surface: #1e293b; /* Contrasting surface */
  --dark-text-primary: #f1f5f9;
  --dark-text-secondary: #94a3b8;
  --dark-border: #334155;

  /* Gradient Colors - Refined */
  --gradient-income: linear-gradient(135deg, #22c55e, #10b981);
  --gradient-expense: linear-gradient(135deg, #f87171, #ef4444);
  --gradient-savings: linear-gradient(135deg, #3b82f6, #0ea5e9);
  --gradient-goal: linear-gradient(135deg, #a855f7, #8b5cf6);
  --gradient-primary: linear-gradient(135deg, #8b5cf6, #6366f1);
  --gradient-surface: linear-gradient(135deg, rgba(255,255,255,0.07), rgba(255,255,255,0.02));

  /* Current Theme Variables */
  --primary-color: var(--light-primary);
  --primary-hover: var(--light-primary-hover);
  --secondary-color: var(--light-secondary);
  --success-color: var(--light-success);
  --warning-color: var(--light-warning);
  --danger-color: var(--light-danger);
  --background-color: var(--light-background);
  --surface-color: var(--light-surface);
  --text-primary: var(--light-text-primary);
  --text-secondary: var(--light-text-secondary);
  --border-color: var(--light-border);

  /* 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);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 10px 10px -5px rgb(0 0 0 / 0.04);

  /* Other */
  --border-radius: 1rem;
  --border-radius-sm: 0.5rem;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.15s ease-out;
}

/* Dark Theme */
body.dark-theme {
  --primary-color: var(--dark-primary);
  --primary-hover: var(--dark-primary-hover);
  --secondary-color: var(--dark-secondary);
  --success-color: var(--dark-success);
  --warning-color: var(--dark-warning);
  --danger-color: var(--dark-danger);
  --background-color: var(--dark-background);
  --surface-color: var(--dark-surface);
  --text-primary: var(--dark-text-primary);
  --text-secondary: var(--dark-text-secondary);
  --border-color: var(--dark-border);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--background-color);
  color: var(--text-primary);
  line-height: 1.6;
  transition: var(--transition);
  min-height: 100vh;
}

/* Animations */
@keyframes slideIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes slideOut { from { opacity: 1; transform: translateY(0); } to { opacity: 0; transform: translateY(-20px); } }
@keyframes scaleIn { from { opacity: 0; transform: scale(0.95); } to { opacity: 1; transform: scale(1); } }
@keyframes pulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.05); } }
@keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }
@keyframes toastIn { from { transform: translateY(100%); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
@keyframes toastOut { from { transform: translateY(0); opacity: 1; } to { transform: translateY(100%); opacity: 0; } }

/* Navigation */
.nav {
  background: var(--surface-color);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: var(--transition);
}

body.dark-theme .nav { background: rgba(30, 41, 59, 0.7); }
.nav-container { max-width: 1600px; margin: 0 auto; padding: 0 2rem; display: flex; align-items: center; justify-content: space-between; height: 5rem; }
.nav-brand { display: flex; align-items: center; gap: 0.75rem; }
.brand-icon { font-size: 2rem; animation: pulse 2s infinite; }
.nav-brand h2 { background: var(--gradient-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; font-weight: 700; font-size: 1.5rem; }
.nav-links { display: flex; gap: 0.5rem; }
.nav-btn { background: none; border: none; padding: 0.75rem 1.25rem; border-radius: var(--border-radius); color: var(--text-secondary); font-weight: 500; cursor: pointer; transition: var(--transition); display: flex; align-items: center; gap: 0.5rem; position: relative; overflow: hidden; }
.nav-btn::before { content: ''; position: absolute; top: 0; left: -100%; width: 100%; height: 100%; background: var(--gradient-primary); transition: var(--transition); z-index: -1; }
.nav-btn:hover::before, .nav-btn.active::before { left: 0; }
.nav-btn:hover, .nav-btn.active { color: white; transform: translateY(-2px); }
.nav-icon { font-size: 1rem; }
.nav-controls { display: flex; align-items: center; gap: 1rem; }
.theme-toggle { background: var(--surface-color); border: 1px solid var(--border-color); padding: 0.75rem; border-radius: 50%; cursor: pointer; transition: var(--transition); display: flex; align-items: center; justify-content: center; position: relative; overflow: hidden; }
.theme-toggle:hover { transform: scale(1.1) rotate(180deg); background: var(--gradient-primary); }
.theme-toggle:hover .theme-icon { filter: brightness(0) invert(1); }
.theme-icon { font-size: 1.25rem; transition: var(--transition); }

/* Main Content */
.main-content { max-width: 1600px; margin: 0 auto; padding: 2rem; }
.view { display: none; }
.view.active { display: block; animation: slideIn 0.5s ease-out; }
.view.inactive { display: block; animation: slideOut 0.3s ease-out forwards; }

/* Empty State */
.empty-state { text-align: center; padding: 4rem 2rem; color: var(--text-secondary); background: var(--surface-color); border: 2px dashed var(--border-color); border-radius: var(--border-radius); animation: scaleIn 0.5s ease-out; }
.empty-state-icon { font-size: 4rem; margin-bottom: 1rem; display: block; filter: grayscale(50%); opacity: 0.7; }
.empty-state h3 { font-size: 1.5rem; color: var(--text-primary); margin-bottom: 0.5rem; }
.empty-state p { max-width: 400px; margin: 0 auto 1.5rem auto; }

/* Dashboard */
.dashboard-header { text-align: center; margin-bottom: 3rem; animation: slideIn 0.6s ease-out; }
.dashboard-title h1 { font-size: 3rem; font-weight: 800; background: var(--gradient-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; margin-bottom: 0.5rem; }
.dashboard-subtitle { color: var(--text-secondary); font-size: 1.125rem; }
.quick-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; margin-bottom: 3rem; }
.stat-card { background: var(--surface-color); padding: 2rem; border-radius: var(--border-radius); border: 1px solid var(--border-color); display: flex; align-items: center; gap: 1.5rem; transition: var(--transition); position: relative; overflow: hidden; animation: slideIn 0.7s ease-out; border-left: 5px solid var(--primary-color); }
body.dark-theme .stat-card { background: var(--dark-surface); }
.stat-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-xl); }
.income-card { border-left-color: var(--success-color); }
.expense-card { border-left-color: var(--danger-color); }
.savings-card { border-left-color: #3b82f6; }
.goal-summary-card { border-left-color: #a855f7; }
.stat-icon { font-size: 2.5rem; padding: 1rem; border-radius: var(--border-radius); display: flex; align-items: center; justify-content: center; min-width: 4rem; height: 4rem; color: white; }
.income-card .stat-icon { background: var(--gradient-income); }
.expense-card .stat-icon { background: var(--gradient-expense); }
.savings-card .stat-icon { background: var(--gradient-savings); }
.goal-summary-card .stat-icon { background: var(--gradient-goal); }
.stat-content { flex: 1; }
.stat-content h3 { font-size: 0.875rem; font-weight: 600; color: var(--text-secondary); margin-bottom: 0.5rem; text-transform: uppercase; letter-spacing: 0.05em; }
.stat-value { font-size: 2rem; font-weight: 800; color: var(--text-primary); margin-bottom: 0.25rem; }
.stat-period { font-size: 0.75rem; color: var(--text-secondary); display: flex; align-items: center; gap: 0.25rem; }
.dashboard-content { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }
.chart-section { display: grid; gap: 2rem; }
.chart-container { background: var(--surface-color); padding: 2rem; border-radius: var(--border-radius); border: 1px solid var(--border-color); transition: var(--transition); animation: slideIn 0.8s ease-out; }
body.dark-theme .chart-container { background: var(--dark-surface); }
.chart-container:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.chart-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.5rem; }
.chart-header h3 { font-weight: 700; color: var(--text-primary); font-size: 1.25rem; }
.chart-indicator { width: 12px; height: 12px; border-radius: 50%; background: var(--gradient-primary); animation: pulse 2s infinite; }
.chart-container canvas { max-height: 300px; }
.recent-section { background: var(--surface-color); padding: 2rem; border-radius: var(--border-radius); border: 1px solid var(--border-color); transition: var(--transition); animation: slideIn 0.9s ease-out; }
body.dark-theme .recent-section { background: var(--dark-surface); }
.recent-section:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.section-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.5rem; }
.section-header h3 { font-weight: 700; color: var(--text-primary); font-size: 1.25rem; }
.view-all-btn { background: none; border: none; color: var(--primary-color); font-weight: 600; cursor: pointer; transition: var(--transition); padding: 0.5rem; border-radius: var(--border-radius-sm); }
.view-all-btn:hover { background: var(--primary-color); color: white; transform: translateX(4px); }

/* Buttons */
.btn { padding: 0.75rem 1.5rem; border: none; border-radius: var(--border-radius); font-weight: 600; text-decoration: none; display: inline-flex; align-items: center; gap: 0.5rem; cursor: pointer; transition: var(--transition); font-size: 0.875rem; position: relative; overflow: hidden; }
.btn::before { content: ''; position: absolute; top: 0; left: -100%; width: 100%; height: 100%; background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent); transition: var(--transition); }
.btn:hover::before { left: 100%; }
.btn-primary { background: var(--gradient-primary); color: white; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-outline { background: transparent; color: var(--primary-color); border: 2px solid var(--primary-color); }
.btn-outline:hover { background: var(--primary-color); color: white; transform: translateY(-2px); }
.floating-btn { position: relative; transform: scale(1); animation: scaleIn 0.5s ease-out; }
.floating-btn:hover { transform: scale(1.05) translateY(-2px); }
.floating-btn span { font-size: 1.25rem; font-weight: bold; }
.btn-small { padding: 0.375rem 0.75rem; font-size: 0.75rem; }
.btn-danger { background: var(--gradient-expense); color: white; }
.btn-danger:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }

/* View Headers */
.view-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 2rem; animation: slideIn 0.5s ease-out; }
.view-header h1 { font-size: 2.5rem; font-weight: 700; background: var(--gradient-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* Filters */
.filters-section { background: var(--surface-color); padding: 2rem; border-radius: var(--border-radius); border: 1px solid var(--border-color); margin-bottom: 2rem; animation: slideIn 0.6s ease-out; }
body.dark-theme .filters-section { background: var(--dark-surface); }
.filter-group { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; }

/* Forms */
.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; margin-bottom: 0.5rem; font-weight: 600; color: var(--text-primary); }
.form-group input, .form-group select, .form-group textarea, .search-input, .filter-select, .date-input { width: 100%; padding: 0.875rem 1rem; border: 2px solid var(--border-color); border-radius: var(--border-radius); font-size: 0.875rem; transition: var(--transition); background: var(--surface-color); color: var(--text-primary); }
body.dark-theme .form-group input, body.dark-theme .form-group select, body.dark-theme .form-group textarea, body.dark-theme .search-input, body.dark-theme .filter-select, body.dark-theme .date-input { background: var(--dark-surface); color: var(--dark-text-primary); }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus, .search-input:focus, .filter-select:focus, .date-input:focus { outline: none; border-color: var(--primary-color); box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1); transform: translateY(-2px); }
.form-actions { display: flex; gap: 1rem; justify-content: flex-end; margin-top: 2rem; }

/* Transaction List */
.transaction-list, .transactions-container { display: flex; flex-direction: column; gap: 1rem; }
.transaction-item { background: var(--surface-color); padding: 1.5rem; border-radius: var(--border-radius); border: 1px solid var(--border-color); display: flex; align-items: center; justify-content: space-between; transition: var(--transition); animation: slideIn 0.7s ease-out; }
body.dark-theme .transaction-item { background: var(--dark-surface); }
.transaction-item:hover { transform: translateX(8px); box-shadow: var(--shadow-md); }
.transaction-info { display: flex; flex-direction: column; gap: 0.25rem; }
.transaction-description { font-weight: 600; color: var(--text-primary); font-size: 1rem; }
.transaction-category, .transaction-date { font-size: 0.875rem; color: var(--text-secondary); }
.transaction-amount { font-weight: 700; font-size: 1.25rem; }
.transaction-amount.income { color: var(--success-color); }
.transaction-amount.expense { color: var(--danger-color); }
.transaction-actions { display: flex; gap: 0.5rem; }

/* Budget & Goal Items */
.budgets-container, .goals-container { display: grid; gap: 1.5rem; grid-template-columns: repeat(auto-fit, minmax(350px, 1fr)); }
.budget-item, .goal-item { background: var(--surface-color); padding: 2rem; border-radius: var(--border-radius); border: 1px solid var(--border-color); transition: var(--transition); animation: slideIn 0.8s ease-out; }
body.dark-theme .budget-item, body.dark-theme .goal-item { background: var(--dark-surface); }
.budget-item:hover, .goal-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.budget-header, .goal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; }
.budget-category, .goal-name { font-weight: 700; color: var(--text-primary); font-size: 1.25rem; }
.budget-amount, .goal-target { font-weight: 700; color: var(--text-secondary); font-size: 1.125rem; }
.progress-bar-container { width: 100%; height: 0.75rem; background: var(--border-color); border-radius: var(--border-radius-sm); overflow: hidden; margin-bottom: 1rem; position: relative; }
.progress-bar { height: 100%; transition: var(--transition); position: relative; overflow: hidden; }
.progress-bar::after { content: ''; position: absolute; top: 0; left: -100%; width: 100%; height: 100%; background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent); animation: shimmer 2s infinite; }
.budget-progress-bar { background: var(--success-color); }
.budget-progress-bar.warning { background: var(--warning-color); }
.budget-progress-bar.danger { background: var(--danger-color); }
.goal-progress-bar { background: var(--gradient-goal); }
.item-stats { display: flex; justify-content: space-between; font-size: 0.875rem; color: var(--text-secondary); font-weight: 500; }
.item-actions { margin-top: 1.5rem; display: flex; gap: 0.75rem; }

/* Groups */
.groups-container { display: grid; gap: 1.5rem; }
.group-item { background: var(--surface-color); padding: 2rem; border-radius: var(--border-radius); border: 1px solid var(--border-color); transition: var(--transition); animation: slideIn 0.9s ease-out; }
body.dark-theme .group-item { background: var(--dark-surface); }
.group-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.group-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; }
.group-name { font-weight: 700; color: var(--text-primary); font-size: 1.25rem; }
.group-members { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-bottom: 1.5rem; }
.member-tag { background: var(--gradient-primary); color: white; padding: 0.375rem 0.75rem; border-radius: 2rem; font-size: 0.75rem; font-weight: 600; transition: var(--transition); }
.member-tag:hover { transform: scale(1.05); }
.group-balances { display: grid; gap: 0.75rem; margin-bottom: 1.5rem; }
.balance-item { display: flex; justify-content: space-between; align-items: center; padding: 1rem; background: var(--gradient-surface); border-radius: var(--border-radius-sm); border: 1px solid var(--border-color); transition: var(--transition); }
.balance-item:hover { transform: translateX(4px); }
.balance-amount.positive { color: var(--success-color); font-weight: 700; }
.balance-amount.negative { color: var(--danger-color); font-weight: 700; }
.group-actions { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.member-input { display: flex; gap: 0.75rem; margin-bottom: 1rem; align-items: center; }
.member-input input { flex: 1; }

/* Settings */
.settings-container { display: grid; gap: 2rem; }
.setting-card { background: var(--surface-color); padding: 2rem; border-radius: var(--border-radius); border: 1px solid var(--border-color); }
body.dark-theme .setting-card { background: var(--dark-surface); }
.setting-card h3 { font-size: 1.25rem; margin-bottom: 0.5rem; }
.setting-card p { color: var(--text-secondary); margin-bottom: 1.5rem; }
.setting-actions { display: flex; flex-wrap: wrap; gap: 1rem; }

/* Modals */
.modal { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0, 0, 0, 0.6); backdrop-filter: blur(8px); z-index: 1000; padding: 1rem; }
.modal.active { display: flex; align-items: center; justify-content: center; animation: scaleIn 0.3s ease-out; }
.modal-content { background: var(--surface-color); border-radius: var(--border-radius); border: 1px solid var(--border-color); box-shadow: var(--shadow-xl); width: 100%; max-width: 500px; max-height: 90vh; overflow-y: auto; animation: slideIn 0.4s ease-out; }
body.dark-theme .modal-content { background: var(--dark-surface); }
.modal-header { display: flex; justify-content: space-between; align-items: center; padding: 2rem; border-bottom: 1px solid var(--border-color); }
.modal-header h2 { font-weight: 700; color: var(--text-primary); font-size: 1.5rem; }
.close-btn { background: none; border: none; font-size: 2rem; cursor: pointer; color: var(--text-secondary); padding: 0.5rem; border-radius: 50%; transition: var(--transition); width: 3rem; height: 3rem; display: flex; align-items: center; justify-content: center; }
.close-btn:hover { background: var(--danger-color); color: white; transform: rotate(90deg); }
.modal form, .modal-body { padding: 2rem; }

/* Toast Notifications */
#toast-container { position: fixed; bottom: 1rem; right: 1rem; z-index: 2000; display: flex; flex-direction: column; gap: 0.5rem; }
.toast { background: var(--surface-color); color: var(--text-primary); padding: 1rem 1.5rem; border-radius: var(--border-radius); box-shadow: var(--shadow-lg); display: flex; align-items: center; gap: 1rem; animation: toastIn 0.5s cubic-bezier(0.215, 0.61, 0.355, 1); border-left: 5px solid var(--primary-color); }
.toast.success { border-left-color: var(--success-color); }
.toast.error { border-left-color: var(--danger-color); }
.toast.info { border-left-color: var(--primary-color); }
.toast.exiting { animation: toastOut 0.5s cubic-bezier(0.55, 0.055, 0.675, 0.19) forwards; }
.toast-icon { font-size: 1.5rem; }

/* Reports */
.reports-content { display: grid; gap: 2rem; }

/* Text Report Card */
.report-card {
  background: var(--surface-color);
  padding: 2.5rem;
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  margin-bottom: 2rem;
  animation: scaleIn 0.5s ease-out;
}

body.dark-theme .report-card {
  background: var(--dark-surface);
}

.report-card h3 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--primary-color);
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 1rem;
}

.report-card p {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.report-summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.summary-item {
  background: var(--gradient-surface);
  padding: 1.5rem;
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--border-color);
}

.summary-item h4 {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.summary-item .amount {
  font-size: 1.75rem;
  font-weight: 700;
}

.report-details ul {
  list-style: none;
  padding-left: 0;
}

.report-details li {
  display: flex;
  justify-content: space-between;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.9rem;
}

.report-details li:last-child {
  border-bottom: none;
}

.report-details li span:first-child {
  color: var(--text-secondary);
}

.report-details li span:last-child {
  font-weight: 600;
}

/* Utilities */
.hidden { display: none !important; }
.text-success { color: var(--success-color) !important; }
.text-warning { color: var(--warning-color) !important; }
.text-danger { color: var(--danger-color) !important; }

/* Responsive Design */
@media (max-width: 1024px) {
  .dashboard-content { grid-template-columns: 1fr; }
  .main-content { padding: 1.5rem; }
}
@media (max-width: 768px) {
  .nav-container { flex-direction: column; height: auto; padding: 1rem; }
  .nav-links { width: 100%; justify-content: center; flex-wrap: wrap; margin-top: 1rem; gap: 0.25rem; }
  .nav-controls { margin-top: 1rem; }
  .main-content { padding: 1rem; }
  .dashboard-title h1 { font-size: 2rem; }
  .quick-stats { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
  .stat-card { padding: 1.5rem; flex-direction: column; text-align: center; }
  .stat-icon { font-size: 2rem; min-width: 3rem; height: 3rem; }
  .view-header { flex-direction: column; gap: 1rem; align-items: stretch; }
  .view-header h1 { font-size: 2rem; }
  .filter-group { grid-template-columns: 1fr; }
  .transaction-item { flex-direction: column; align-items: stretch; gap: 1rem; }
  .form-actions { flex-direction: column; }
  .modal { padding: 0.5rem; }
  .modal-content { max-height: 95vh; }
  .modal-header, .modal form { padding: 1.5rem; }
  .group-actions { justify-content: center; }
}
@media (max-width: 480px) {
  .quick-stats, .budgets-container, .goals-container { grid-template-columns: 1fr; }
  .nav-links { grid-template-columns: repeat(3, 1fr); display: grid; gap: 0.25rem; width: 100%; }
  .nav-btn { justify-content: center; padding: 0.5rem; }
  .dashboard-title h1 { font-size: 1.75rem; }
  .stat-value { font-size: 1.5rem; }
  .chart-container canvas { max-height: 250px; }
  .modal-header h2 { font-size: 1.25rem; }
}

/* Custom Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--border-color); border-radius: 4px; }
::-webkit-scrollbar-thumb { background: var(--primary-color); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary-hover); }