/* ============================================
   ExpenseFlow — Style System
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --sidebar-w: 260px;

  /* Accent Colors */
  --primary: #6C5CE7;
  --primary-light: #a29bfe;
  --primary-dark: #5a4bd1;
  --accent: #00B894;
  --accent-light: #55efc4;
  --danger: #FF6B6B;
  --danger-light: #ff8787;
  --warning: #FECA57;
  --info: #74b9ff;

  /* Category Colors */
  --cat-investments: #6C5CE7;
  --cat-need: #00B894;
  --cat-fun: #FECA57;
}

/* Light Theme */
[data-theme="light"] {
  --bg: #F0F2F5;
  --bg-card: #FFFFFF;
  --bg-card-hover: #F8F9FA;
  --bg-sidebar: #FFFFFF;
  --bg-input: #F0F2F5;
  --bg-modal: #FFFFFF;
  --text: #1A1A2E;
  --text-secondary: #6B7280;
  --text-muted: #9CA3AF;
  --border: #E5E7EB;
  --border-light: #F0F2F5;
  --shadow-color: rgba(0,0,0,0.06);
  --overlay: rgba(0,0,0,0.3);
  --stat-bg-income: linear-gradient(135deg, #e8f5e9, #c8e6c9);
  --stat-bg-expense: linear-gradient(135deg, #fce4ec, #f8bbd0);
  --stat-bg-savings: linear-gradient(135deg, #e8eaf6, #c5cae9);
  --stat-bg-rate: linear-gradient(135deg, #fff3e0, #ffe0b2);
  --chart-grid: rgba(0,0,0,0.06);
  --chart-text: #6B7280;
}

/* Dark Theme (default) */
[data-theme="dark"] {
  --bg: #0B0B1A;
  --bg-card: #14142B;
  --bg-card-hover: #1C1C3A;
  --bg-sidebar: #0F0F23;
  --bg-input: #1C1C3A;
  --bg-modal: #14142B;
  --text: #E8E8F0;
  --text-secondary: #9B9BB4;
  --text-muted: #6B6B85;
  --border: #2A2A45;
  --border-light: #1E1E38;
  --shadow-color: rgba(0,0,0,0.3);
  --overlay: rgba(0,0,0,0.6);
  --stat-bg-income: linear-gradient(135deg, #1a3a2a, #0d2818);
  --stat-bg-expense: linear-gradient(135deg, #3a1a2a, #2d0d1a);
  --stat-bg-savings: linear-gradient(135deg, #1a1a3a, #14142b);
  --stat-bg-rate: linear-gradient(135deg, #3a2a1a, #2d1f0d);
  --chart-grid: rgba(255,255,255,0.06);
  --chart-text: #9B9BB4;
}

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

html {
  font-size: 15px;
  scroll-behavior: smooth;
  touch-action: manipulation;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  display: flex;
  min-height: 100vh;
  overflow-x: hidden;
  transition: background var(--transition), color var(--transition);
  touch-action: manipulation;
  -ms-touch-action: manipulation;
}

::selection {
  background: var(--primary);
  color: #fff;
}

/* Custom Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ---------- Sidebar ---------- */
.sidebar {
  position: fixed;
  left: 0; top: 0;
  width: var(--sidebar-w);
  height: 100vh;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: transform var(--transition), background var(--transition);
}

.sidebar-header {
  padding: 28px 24px 20px;
}

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

.logo-icon {
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 4px 16px rgba(108,92,231,0.3);
}

.logo-text {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  flex: 1;
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: all var(--transition);
  position: relative;
}

.nav-item::before {
  content: '';
  position: absolute;
  left: 0; top: 50%;
  width: 3px; height: 0;
  background: var(--primary);
  border-radius: 0 4px 4px 0;
  transform: translateY(-50%);
  transition: height var(--transition);
}

.nav-item:hover {
  background: var(--bg-card-hover);
  color: var(--text);
}

.nav-item.active {
  background: linear-gradient(135deg, rgba(108,92,231,0.15), rgba(108,92,231,0.05));
  color: var(--primary-light);
  font-weight: 600;
}

.nav-item.active::before {
  height: 60%;
}

.nav-item svg { flex-shrink: 0; }

.sidebar-footer {
  padding: 16px 12px 20px;
  border-top: 1px solid var(--border);
}

.data-actions {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
}

.data-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  font-family: var(--font);
  font-size: 0.8rem;
  font-weight: 500;
  transition: all var(--transition);
}

.data-btn:hover {
  background: var(--bg-card-hover);
  color: var(--text);
  border-color: var(--primary);
}

.theme-toggle {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 12px 16px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--bg-card-hover);
  color: var(--text-secondary);
  cursor: pointer;
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 500;
  transition: all var(--transition);
}

.theme-toggle:hover {
  background: var(--border);
  color: var(--text);
}

[data-theme="dark"] .icon-sun { display: inline; }
[data-theme="dark"] .icon-moon { display: none; }
[data-theme="light"] .icon-sun { display: none; }
[data-theme="light"] .icon-moon { display: inline; }

.version-info {
  text-align: center;
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 12px;
  letter-spacing: 0.5px;
}

/* ---------- Mobile Header ---------- */
.mobile-header {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 60px;
  background: var(--bg-sidebar);
  border-bottom: 1px solid var(--border);
  z-index: 99;
  align-items: center;
  padding: 0 20px;
  gap: 16px;
}

.hamburger {
  width: 36px; height: 36px;
  background: none; border: none;
  display: flex; flex-direction: column;
  justify-content: center; gap: 5px;
  cursor: pointer; padding: 6px;
}
.hamburger span {
  display: block; width: 100%; height: 2px;
  background: var(--text); border-radius: 2px;
  transition: all var(--transition);
}

.mobile-logo {
  display: flex; align-items: center; gap: 8px;
  font-weight: 700; font-size: 1.1rem;
  color: var(--primary-light);
}
.mobile-logo svg { color: var(--primary); }

/* ---------- Main Content ---------- */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  padding: 32px 40px;
  max-width: 1200px;
  width: 100%;
}

.tab-content {
  display: none;
  animation: fadeSlideIn 0.4s ease;
}
.tab-content.active { display: block; }

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- Page Header ---------- */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 16px;
}

.page-title {
  font-size: 1.85rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 4px;
}

.page-subtitle {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Year / Month Selector */
.year-selector, .month-selector {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px 8px;
}

.year-btn {
  width: 34px; height: 34px;
  border: none; border-radius: 8px;
  background: var(--bg-input);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
}
.year-btn:hover { background: var(--primary); color: #fff; }

.year-display, .month-display {
  font-weight: 700;
  font-size: 1.05rem;
  min-width: 80px;
  text-align: center;
  padding: 0 8px;
}

.month-display { min-width: 140px; }

.header-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* ---------- Stats Grid ---------- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 28px;
}

.stat-card {
  border-radius: var(--radius);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  border: 1px solid var(--border);
}

.stat-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.stat-income { background: var(--stat-bg-income); }
.stat-expense { background: var(--stat-bg-expense); }
.stat-savings { background: var(--stat-bg-savings); }
.stat-rate { background: var(--stat-bg-rate); }

.stat-icon {
  width: 46px; height: 46px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
}
.stat-income .stat-icon { background: rgba(0,184,148,0.15); color: var(--accent); }
.stat-expense .stat-icon { background: rgba(255,107,107,0.15); color: var(--danger); }
.stat-savings .stat-icon { background: rgba(108,92,231,0.15); color: var(--primary-light); }
.stat-rate .stat-icon { background: rgba(254,202,87,0.15); color: var(--warning); }

.stat-label {
  font-size: 0.78rem;
  color: var(--text-secondary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.stat-value {
  font-size: 1.65rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.stat-trend {
  position: absolute;
  top: 20px; right: 20px;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 20px;
}
.stat-trend.up { background: rgba(0,184,148,0.15); color: var(--accent); }
.stat-trend.down { background: rgba(255,107,107,0.15); color: var(--danger); }

.stat-badge {
  position: absolute;
  top: 20px; right: 20px;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  background: rgba(108,92,231,0.15);
  color: var(--primary-light);
}

/* ---------- Charts ---------- */
.charts-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 20px;
  margin-bottom: 28px;
}

.chart-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: background var(--transition), border var(--transition);
}

.chart-card.chart-wide { /* takes full width in grid */ }

.chart-header {
  padding: 20px 24px 0;
}

.chart-header h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.chart-subtitle {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.chart-body {
  padding: 16px 20px 20px;
  position: relative;
  height: 280px;
}

.chart-body canvas {
  max-height: 100%;
}

.chart-body-donut {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.donut-center {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  pointer-events: none;
}
.donut-total { font-size: 1.2rem; font-weight: 800; }
.donut-label { font-size: 0.72rem; color: var(--text-muted); }

/* ---------- Cards ---------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
  transition: background var(--transition), border var(--transition);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.card-header h3 {
  font-size: 1.05rem;
  font-weight: 700;
}

.badge {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
  background: rgba(108,92,231,0.12);
  color: var(--primary-light);
}

/* ---------- Spend Summary ---------- */
.spend-summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

.summary-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  transition: all var(--transition);
}

.summary-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.summary-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.summary-label {
  font-size: 0.82rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.summary-value {
  font-size: 1.85rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 14px;
}

.income-card .summary-value { color: var(--accent); }
.expense-card .summary-value { color: var(--danger); }
.balance-card .summary-value { color: var(--primary-light); }

.summary-bar { margin-top: 4px; }

.bar-track {
  width: 100%;
  height: 6px;
  border-radius: 10px;
  background: var(--bg-input);
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: 10px;
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}
.bar-income { background: linear-gradient(90deg, var(--accent), var(--accent-light)); }
.bar-expense { background: linear-gradient(90deg, var(--danger), var(--danger-light)); }
.bar-balance { background: linear-gradient(90deg, var(--primary), var(--primary-light)); }

/* ---------- Category Breakdown ---------- */
.category-breakdown {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.cat-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: all var(--transition);
  cursor: default;
}
.cat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.cat-icon {
  font-size: 1.6rem;
  width: 46px; height: 46px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
}
.cat-investments .cat-icon { background: rgba(108,92,231,0.12); }
.cat-need .cat-icon { background: rgba(0,184,148,0.12); }
.cat-fun .cat-icon { background: rgba(254,202,87,0.12); }

.cat-info { flex: 1; }
.cat-name { display: block; font-size: 0.82rem; color: var(--text-secondary); font-weight: 500; }
.cat-amount { display: block; font-size: 1.15rem; font-weight: 700; margin-top: 2px; }
.cat-investments .cat-amount { color: var(--primary-light); }
.cat-need .cat-amount { color: var(--accent); }
.cat-fun .cat-amount { color: var(--warning); }

.cat-percent {
  font-size: 0.85rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 20px;
}
.cat-investments .cat-percent { background: rgba(108,92,231,0.12); color: var(--primary-light); }
.cat-need .cat-percent { background: rgba(0,184,148,0.12); color: var(--accent); }
.cat-fun .cat-percent { background: rgba(254,202,87,0.12); color: var(--warning); }

/* ---------- Filter Tabs ---------- */
.filter-tabs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.filter-tab {
  padding: 7px 16px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}
.filter-tab:hover { border-color: var(--primary); color: var(--primary-light); }
.filter-tab.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

/* ---------- Transactions ---------- */
.transactions-list {
  max-height: 400px;
  overflow-y: auto;
}

.transaction-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border-light);
  transition: background var(--transition);
  animation: fadeSlideIn 0.3s ease;
}
.transaction-item:last-child { border-bottom: none; }
.transaction-item:hover { background: var(--bg-card-hover); border-radius: var(--radius-xs); margin: 0 -8px; padding: 14px 8px; }

.txn-icon {
  width: 42px; height: 42px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.15rem;
  flex-shrink: 0;
}
.txn-icon.investments { background: rgba(108,92,231,0.12); }
.txn-icon.need { background: rgba(0,184,148,0.12); }
.txn-icon.fun { background: rgba(254,202,87,0.12); }

.txn-details { flex: 1; min-width: 0; }
.txn-desc {
  font-weight: 600;
  font-size: 0.92rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.txn-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 3px;
}

.txn-amount {
  font-weight: 700;
  font-size: 1rem;
  white-space: nowrap;
}
.txn-amount.expense { color: var(--danger); }

.txn-actions {
  display: flex;
  gap: 4px;
  opacity: 0;
  transition: opacity var(--transition);
}
.transaction-item:hover .txn-actions { opacity: 1; }

.txn-btn {
  width: 32px; height: 32px;
  border: none;
  border-radius: 8px;
  background: var(--bg-input);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
}
.txn-btn:hover { background: var(--danger); color: #fff; }
.txn-btn.edit-btn:hover { background: var(--primary); color: #fff; }

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 20px;
  color: var(--text-muted);
  text-align: center;
  gap: 12px;
}
.empty-state.small { padding: 24px 12px; }
.empty-state p { font-size: 0.88rem; max-width: 300px; }

/* ---------- Analytics Grid ---------- */
.analytics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
}

.top-expenses-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.top-expense-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border-light);
}
.top-expense-item:last-child { border-bottom: none; }

.top-expense-rank {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--bg-input);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-secondary);
  flex-shrink: 0;
}
.top-expense-rank.gold { background: rgba(254,202,87,0.2); color: var(--warning); }
.top-expense-rank.silver { background: rgba(192,192,192,0.2); color: #c0c0c0; }
.top-expense-rank.bronze { background: rgba(205,127,50,0.2); color: #cd7f32; }

.top-expense-info { flex: 1; min-width: 0; }
.top-expense-name {
  font-weight: 600; font-size: 0.88rem;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.top-expense-cat {
  font-size: 0.72rem; color: var(--text-muted); margin-top: 1px;
}
.top-expense-amount { font-weight: 700; font-size: 0.95rem; }

/* Insights */
.insights-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.insight-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  background: var(--bg-input);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}
.insight-icon { font-size: 1.2rem; flex-shrink: 0; margin-top: 1px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(108,92,231,0.3);
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); }

.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 14px rgba(0,184,148,0.3);
}
.btn-accent:hover { background: #00a884; transform: translateY(-1px); }

.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary-light); background: rgba(108,92,231,0.05); }

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 8px 16px;
}
.btn-ghost:hover { color: var(--text); background: var(--bg-card-hover); }

.btn-sm { padding: 6px 14px; font-size: 0.8rem; }

.btn-danger {
  background: var(--danger);
  color: #fff;
}
.btn-danger:hover { background: #e55; }

/* ---------- Modals ---------- */
.overlay {
  position: fixed;
  inset: 0;
  background: var(--overlay);
  backdrop-filter: blur(4px);
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}
.overlay.active { opacity: 1; pointer-events: all; }

.modal {
  position: fixed;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%) scale(0.9);
  z-index: 250;
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition);
}
.modal.active {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
  pointer-events: all;
}

.modal-content {
  background: var(--bg-modal);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 460px;
  max-width: 94vw;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.modal-lg .modal-content,
.modal-content.modal-lg {
  width: 580px;
}
/* Fix: modal-lg is on the modal-content directly */
.modal-lg {
  width: 580px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 24px 0;
}
.modal-header h2 { font-size: 1.2rem; font-weight: 700; }

.modal-close {
  width: 36px; height: 36px;
  border: none;
  border-radius: 50%;
  background: var(--bg-input);
  color: var(--text-secondary);
  font-size: 1.3rem;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
}
.modal-close:hover { background: var(--danger); color: #fff; }

.modal-body { padding: 20px 24px; }

.modal-month {
  text-align: center;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--primary-light);
  background: rgba(108,92,231,0.08);
  padding: 8px 16px;
  border-radius: var(--radius-xs);
  margin-bottom: 20px;
}

.modal-footer {
  padding: 16px 24px 22px;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* ---------- Forms ---------- */
.form-group {
  margin-bottom: 18px;
}
.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="date"],
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.92rem;
  transition: all var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(108,92,231,0.15);
}

.input-group {
  position: relative;
}
.input-prefix {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-weight: 700;
  color: var(--text-muted);
  font-size: 0.95rem;
}
.input-group input {
  padding-left: 38px !important;
}

.category-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.cat-select-btn {
  padding: 12px 8px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  color: var(--text-secondary);
  font-family: var(--font);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.cat-select-btn span { font-size: 1.2rem; }
.cat-select-btn:hover { border-color: var(--primary); }
.cat-select-btn.active {
  border-color: var(--primary);
  background: rgba(108,92,231,0.1);
  color: var(--primary-light);
}

.subcategory-row {
  display: flex;
  gap: 8px;
}
.subcategory-row select { flex: 1; }

.other-subcat-input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.92rem;
  transition: all var(--transition);
  outline: none;
}
.other-subcat-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(108,92,231,0.15);
}

/* ---------- Subcategory Modal ---------- */
.subcat-tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.subcat-tab {
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}
.subcat-tab:hover { border-color: var(--primary); }
.subcat-tab.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.subcat-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
  min-height: 40px;
}

.subcat-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text);
  animation: fadeSlideIn 0.2s ease;
}

.subcat-chip-remove {
  width: 18px; height: 18px;
  border: none;
  border-radius: 50%;
  background: rgba(255,107,107,0.15);
  color: var(--danger);
  font-size: 0.7rem;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
}
.subcat-chip-remove:hover {
  background: var(--danger);
  color: #fff;
}

.subcat-add {
  display: flex;
  gap: 8px;
}
.subcat-add input {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.88rem;
  outline: none;
  transition: border var(--transition);
}
.subcat-add input:focus { border-color: var(--primary); }

/* ---------- Toast ---------- */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  display: flex;
  flex-direction: column-reverse;
  gap: 10px;
}

.toast {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text);
  animation: toastIn 0.4s ease;
  min-width: 280px;
}

.toast.success { border-left: 4px solid var(--accent); }
.toast.error { border-left: 4px solid var(--danger); }
.toast.info { border-left: 4px solid var(--info); }

.toast-icon { font-size: 1.2rem; }

@keyframes toastIn {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes toastOut {
  from { opacity: 1; transform: translateX(0); }
  to { opacity: 0; transform: translateX(40px); }
}

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .charts-grid { grid-template-columns: 1fr; }
  .analytics-grid { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
  .spend-summary { grid-template-columns: 1fr; }
  .category-breakdown { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    z-index: 250;
  }
  .sidebar.open { transform: translateX(0); }

  .mobile-header { display: flex; }

  .main-content {
    margin-left: 0;
    padding: 80px 16px 32px;
  }

  .stats-grid { grid-template-columns: 1fr 1fr; }
  .charts-grid { grid-template-columns: 1fr; }
  .analytics-grid { grid-template-columns: 1fr; }
  .page-header { flex-direction: column; }
  .category-selector { grid-template-columns: 1fr; }
  .filter-tabs { flex-wrap: wrap; }
  .header-actions { width: 100%; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .spend-summary { grid-template-columns: 1fr; }
  .modal-content { width: 100%; border-radius: var(--radius-sm); }
  .page-title { font-size: 1.5rem; }
}