/* ===== VARIABLES & THEMES ===== */
:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #818cf8;
  --secondary: #10b981;
  --secondary-dark: #059669;
  --danger: #ef4444;
  --danger-dark: #dc2626;
  --warning: #f59e0b;
  --warning-dark: #d97706;
  --info: #3b82f6;
  
  /* Light Mode */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --bg-card: #ffffff;
  --bg-modal: #ffffff;
  --bg-nav: #ffffff;
  --bg-header: #ffffff;
  --bg-input: #f8fafc;
  --border-color: #e2e8f0;
  --border-color-2: #cbd5e1;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --text-inverse: #ffffff;
  --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);
  --shadow-xl: 0 20px 25px rgba(0,0,0,0.1), 0 10px 10px rgba(0,0,0,0.04);
  --income-bg: #d1fae5;
  --income-text: #059669;
  --expense-bg: #fee2e2;
  --expense-text: #dc2626;
  --pending-bg: #fef3c7;
  --pending-text: #d97706;
  --card-bg: #ede9fe;
  --card-text: #7c3aed;
  --overlay: rgba(0,0,0,0.5);
}

[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #273449;
  --bg-card: #1e293b;
  --bg-modal: #1e293b;
  --bg-nav: #1e293b;
  --bg-header: #1e293b;
  --bg-input: #273449;
  --border-color: #334155;
  --border-color-2: #475569;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #0f172a;
  --shadow: 0 1px 3px rgba(0,0,0,0.3), 0 1px 2px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.2), 0 2px 4px rgba(0,0,0,0.15);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.3), 0 4px 6px rgba(0,0,0,0.2);
  --shadow-xl: 0 20px 25px rgba(0,0,0,0.4), 0 10px 10px rgba(0,0,0,0.2);
  --income-bg: #064e3b;
  --income-text: #34d399;
  --expense-bg: #7f1d1d;
  --expense-text: #fca5a5;
  --pending-bg: #78350f;
  --pending-text: #fcd34d;
  --card-bg: #2e1065;
  --card-text: #c4b5fd;
  --overlay: rgba(0,0,0,0.7);
}

/* ===== RESET & BASE ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  min-height: -webkit-fill-available;
  overflow-x: hidden;
  transition: background-color 0.3s, color 0.3s;
  -webkit-font-smoothing: antialiased;
}

/* ===== LAYOUT ===== */
#app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: -webkit-fill-available;
  max-width: 480px;
  margin: 0 auto;
  position: relative;
}

/* ===== HEADER ===== */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-header);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow);
  padding: 0 16px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.app-logo {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: white;
}

.app-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.3px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  transition: all 0.2s;
}

.header-btn:active {
  transform: scale(0.92);
  background: var(--border-color);
}

.period-selector {
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 4px 10px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
}

/* ===== MAIN CONTENT ===== */
.main-content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding-bottom: 80px;
  -webkit-overflow-scrolling: touch;
}

/* ===== BOTTOM NAV ===== */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 480px;
  background: var(--bg-nav);
  border-top: 1px solid var(--border-color);
  box-shadow: 0 -4px 20px rgba(0,0,0,0.08);
  display: flex;
  align-items: center;
  justify-content: space-around;
  height: 64px;
  z-index: 100;
  padding: 0 8px;
  padding-bottom: env(safe-area-inset-bottom);
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  padding: 6px 12px;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s;
  min-width: 52px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  text-decoration: none;
}

.nav-item i {
  font-size: 18px;
  transition: all 0.2s;
}

.nav-item span {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.2px;
}

.nav-item.active {
  color: var(--primary);
}

.nav-item.active i {
  transform: scale(1.1);
}

.nav-item:active {
  transform: scale(0.92);
}

.nav-item-fab {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(99,102,241,0.4);
  transition: all 0.2s;
  margin-top: -24px;
}

.nav-item-fab:active {
  transform: scale(0.92);
}

/* ===== PAGES ===== */
.page {
  display: none;
  padding: 16px;
  animation: fadeIn 0.25s ease-out;
}

.page.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== SECTION HEADERS ===== */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.section-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.section-title i {
  color: var(--primary);
  font-size: 14px;
}

.section-action {
  font-size: 12px;
  color: var(--primary);
  font-weight: 600;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 8px;
  border: none;
  background: transparent;
  transition: background 0.2s;
}

.section-action:active {
  background: var(--bg-tertiary);
}

/* ===== CARDS ===== */
.card {
  background: var(--bg-card);
  border-radius: 16px;
  padding: 16px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
  margin-bottom: 12px;
  transition: transform 0.15s, box-shadow 0.15s;
}

.card:active {
  transform: scale(0.99);
}

/* ===== BALANCE CARD ===== */
.balance-card {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  border-radius: 20px;
  padding: 20px;
  color: white;
  margin-bottom: 16px;
  box-shadow: 0 8px 24px rgba(99,102,241,0.35);
  border: none;
  position: relative;
  overflow: hidden;
}

.balance-card::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 200px;
  height: 200px;
  background: rgba(255,255,255,0.08);
  border-radius: 50%;
}

.balance-card::after {
  content: '';
  position: absolute;
  bottom: -40%;
  left: -5%;
  width: 160px;
  height: 160px;
  background: rgba(255,255,255,0.05);
  border-radius: 50%;
}


.balance-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
  position: relative;
  z-index: 2;
}

.balance-eye-btn {
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 12px;
  background: rgba(255,255,255,0.16);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.12);
  transition: transform 0.18s ease, background 0.25s ease, box-shadow 0.25s ease;
}

.balance-eye-btn:hover {
  background: rgba(255,255,255,0.22);
  box-shadow: 0 10px 24px rgba(0,0,0,0.16);
}

.balance-eye-btn:active {
  transform: scale(0.94);
}

.balance-eye-btn i {
  font-size: 13px;
}

.balance-label {
  font-size: 12px;
  opacity: 0.8;
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.balance-value {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.balance-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  position: relative;
  z-index: 1;
}

.balance-stat {
  background: rgba(255,255,255,0.15);
  border-radius: 12px;
  padding: 10px;
  backdrop-filter: blur(4px);
}

.balance-stat-label {
  font-size: 10px;
  opacity: 0.75;
  font-weight: 500;
  margin-bottom: 2px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.balance-stat-value {
  font-size: 16px;
  font-weight: 700;
}

.sensitive-value {
  display: inline-block;
  transition: filter 0.35s ease, opacity 0.25s ease, transform 0.25s ease;
  will-change: filter, opacity, transform;
}

.sensitive-value.is-hidden {
  filter: blur(8px);
  opacity: 0.42;
  transform: scale(0.985);
  user-select: none;
}

.sensitive-value.revealing {
  animation: revealSensitiveValue 0.35s ease;
}

@keyframes revealSensitiveValue {
  0% {
    opacity: 0.45;
    filter: blur(8px);
    transform: scale(0.985);
  }
  100% {
    opacity: 1;
    filter: blur(0);
    transform: scale(1);
  }
}

/* ===== MINI STATS ===== */
.mini-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 12px;
}

.mini-stat-card {
  background: var(--bg-card);
  border-radius: 14px;
  padding: 14px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
}

.mini-stat-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  margin-bottom: 8px;
}

.mini-stat-label {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 2px;
}

.mini-stat-value {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.3px;
}

.mini-stat-value.income { color: var(--secondary); }
.mini-stat-value.expense { color: var(--danger); }
.mini-stat-value.pending { color: var(--warning); }
.mini-stat-value.card { color: var(--primary); }

/* ===== TRANSACTION LIST ===== */
.transaction-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: var(--bg-card);
  border-radius: 14px;
  border: 1px solid var(--border-color);
  margin-bottom: 8px;
  transition: all 0.15s;
  cursor: pointer;
}

.transaction-item:active {
  transform: scale(0.99);
  background: var(--bg-tertiary);
}

.transaction-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  flex-shrink: 0;
}

.transaction-info {
  flex: 1;
  min-width: 0;
}

.transaction-desc {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.transaction-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 2px;
}

.transaction-category {
  font-size: 11px;
  color: var(--text-muted);
}

.transaction-date {
  font-size: 11px;
  color: var(--text-muted);
}

.transaction-amount {
  font-size: 15px;
  font-weight: 700;
  flex-shrink: 0;
}

.transaction-amount.income { color: var(--secondary); }
.transaction-amount.expense { color: var(--danger); }

.transaction-status {
  display: inline-flex;
  align-items: center;
  padding: 2px 7px;
  border-radius: 20px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.status-paid, .status-received {
  background: var(--income-bg);
  color: var(--income-text);
}

.status-pending {
  background: var(--pending-bg);
  color: var(--pending-text);
}

.status-overdue {
  background: var(--expense-bg);
  color: var(--expense-text);
}

/* ===== ALERTS ===== */
.alert-banner {
  background: var(--expense-bg);
  border: 1px solid rgba(239,68,68,0.3);
  border-radius: 12px;
  padding: 12px 14px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 10px;
}

.alert-banner i {
  color: var(--danger);
  font-size: 16px;
  margin-top: 1px;
  flex-shrink: 0;
}

.alert-text {
  flex: 1;
}

.alert-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--expense-text);
  margin-bottom: 1px;
}

.alert-body {
  font-size: 12px;
  color: var(--expense-text);
  opacity: 0.8;
}

.alert-warning {
  background: var(--pending-bg);
  border-color: rgba(245,158,11,0.3);
}

.alert-warning i { color: var(--warning); }
.alert-warning .alert-title, .alert-warning .alert-body { color: var(--pending-text); }

/* ===== CHART CONTAINERS ===== */
.chart-container {
  position: relative;
  width: 100%;
  margin-bottom: 4px;
}

.chart-wrapper {
  position: relative;
  height: 200px;
}

.chart-wrapper canvas {
  max-height: 200px;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  text-decoration: none;
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
}

.btn:active { transform: scale(0.96); }

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  box-shadow: 0 4px 12px rgba(99,102,241,0.3);
}

.btn-success {
  background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
  color: white;
  box-shadow: 0 4px 12px rgba(16,185,129,0.3);
}

.btn-danger {
  background: linear-gradient(135deg, var(--danger), var(--danger-dark));
  color: white;
  box-shadow: 0 4px 12px rgba(239,68,68,0.3);
}

.btn-warning {
  background: linear-gradient(135deg, var(--warning), var(--warning-dark));
  color: white;
  box-shadow: 0 4px 12px rgba(245,158,11,0.3);
}

.btn-outline {
  background: transparent;
  border: 1.5px solid var(--border-color-2);
  color: var(--text-primary);
}

.btn-ghost {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
}

.btn-full {
  width: 100%;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
  border-radius: 8px;
}

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: 10px;
}

/* ===== FORMS ===== */
.form-group {
  margin-bottom: 14px;
}

.form-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

.form-control {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--border-color);
  border-radius: 10px;
  font-size: 14px;
  color: var(--text-primary);
  background: var(--bg-input);
  transition: all 0.2s;
  outline: none;
  font-family: inherit;
  appearance: none;
  -webkit-appearance: none;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}

.form-control::placeholder {
  color: var(--text-muted);
}

textarea.form-control {
  resize: vertical;
  min-height: 80px;
}

select.form-control {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.input-group {
  position: relative;
}

.input-prefix {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
}

.input-group .form-control {
  padding-left: 30px;
}

/* ===== TOGGLE TYPES ===== */
.type-toggle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 16px;
}

.type-btn {
  padding: 10px;
  border-radius: 12px;
  border: 2px solid var(--border-color);
  background: var(--bg-input);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all 0.2s;
}

.type-btn.income.active {
  border-color: var(--secondary);
  background: var(--income-bg);
  color: var(--income-text);
}

.type-btn.expense.active {
  border-color: var(--danger);
  background: var(--expense-bg);
  color: var(--expense-text);
}

/* ===== MODAL ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--overlay);
  z-index: 200;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
  padding-bottom: env(safe-area-inset-bottom);
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--bg-modal);
  border-radius: 24px 24px 0 0;
  width: 100%;
  max-width: 480px;
  max-height: 92vh;
  overflow-y: auto;
  transform: translateY(100%);
  transition: transform 0.35s cubic-bezier(0.32, 0.72, 0, 1);
  -webkit-overflow-scrolling: touch;
}

.modal-overlay.open .modal {
  transform: translateY(0);
}

.modal-handle {
  width: 36px;
  height: 4px;
  background: var(--border-color);
  border-radius: 2px;
  margin: 10px auto 0;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px 12px;
  border-bottom: 1px solid var(--border-color);
}

.modal-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-close {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}

.modal-body {
  padding: 16px 20px 20px;
}

/* ===== CONTEXT MENU ===== */
.context-menu {
  position: fixed;
  z-index: 300;
  background: var(--bg-modal);
  border-radius: 14px;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-color);
  overflow: hidden;
  min-width: 180px;
  animation: slideIn 0.15s ease-out;
}

@keyframes slideIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.context-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  color: var(--text-primary);
  transition: background 0.15s;
  border: none;
  background: transparent;
  width: 100%;
  text-align: left;
}

.context-item:not(:last-child) {
  border-bottom: 1px solid var(--border-color);
}

.context-item:active { background: var(--bg-tertiary); }
.context-item.danger { color: var(--danger); }

/* ===== PILLS & CHIPS ===== */
.chip {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  border: 1.5px solid var(--border-color);
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  transition: all 0.15s;
  white-space: nowrap;
}

.chip.active {
  border-color: var(--primary);
  background: rgba(99,102,241,0.12);
  color: var(--primary);
}

.chips-row {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 4px;
  margin-bottom: 12px;
  scrollbar-width: none;
}

.chips-row::-webkit-scrollbar { display: none; }

/* ===== PROGRESS BAR ===== */
.progress-bar {
  height: 6px;
  background: var(--border-color);
  border-radius: 3px;
  overflow: hidden;
  margin-top: 8px;
}

.progress-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== EMPTY STATE ===== */
.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-muted);
}

.empty-state i {
  font-size: 48px;
  margin-bottom: 12px;
  opacity: 0.4;
  display: block;
}

.empty-state h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.empty-state p {
  font-size: 13px;
}

/* ===== CREDIT CARD VISUAL ===== */
.credit-card-visual {
  background: linear-gradient(135deg, #1a1a2e, #16213e, #0f3460);
  border-radius: 18px;
  padding: 20px;
  color: white;
  position: relative;
  overflow: hidden;
  margin-bottom: 12px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
  min-height: 130px;
}

.credit-card-visual.green {
  background: linear-gradient(135deg, #064e3b, #065f46, #047857);
}

.credit-card-visual.purple {
  background: linear-gradient(135deg, #2e1065, #3730a3, #4c1d95);
}

.credit-card-visual.orange {
  background: linear-gradient(135deg, #78350f, #92400e, #b45309);
}

.credit-card-visual.blue {
  background: linear-gradient(135deg, #1e3a5f, #1e40af, #1d4ed8);
}

.credit-card-visual.red {
  background: linear-gradient(135deg, #7f1d1d, #991b1b, #b91c1c);
}

.card-chip {
  width: 32px;
  height: 24px;
  background: linear-gradient(135deg, #ffd700, #ffa500);
  border-radius: 5px;
  margin-bottom: 16px;
}

.card-number {
  font-size: 16px;
  letter-spacing: 3px;
  margin-bottom: 12px;
  opacity: 0.9;
}

.card-bottom {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.card-name {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.card-limit-info {
  text-align: right;
}

.card-limit-label {
  font-size: 9px;
  opacity: 0.6;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.card-limit-value {
  font-size: 14px;
  font-weight: 700;
}


.credit-card-visual {
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, opacity 0.2s ease;
}

.credit-card-visual:hover {
  transform: translateY(-2px);
}

.credit-card-visual.is-selected {
  border-color: rgba(255,255,255,0.95);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.28), 0 14px 30px rgba(0,0,0,0.35);
}

.credit-card-visual::after {
  content: '';
  position: absolute;
  inset: auto 16px 12px;
  height: 4px;
  border-radius: 999px;
  background: rgba(255,255,255,0.16);
}

.credit-card-visual.is-selected::after {
  background: linear-gradient(90deg, rgba(255,255,255,0.95), rgba(255,255,255,0.35));
}

.card-selected-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.16);
  border: 1px solid rgba(255,255,255,0.25);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  backdrop-filter: blur(6px);
}

.card-selected-badge i {
  font-size: 10px;
}

.cards-selection-help {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 4px 2px 12px;
}

.cards-selection-label {
  font-size: 12px;
  color: var(--text-muted);
}

.cards-selection-dots {
  display: flex;
  align-items: center;
  gap: 6px;
}

.cards-selection-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--border-color);
  transition: transform 0.2s ease, background 0.2s ease, width 0.2s ease;
}

.cards-selection-dot.active {
  width: 22px;
  background: var(--primary);
}

.card-detail-selected-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(99,102,241,0.12);
  color: var(--primary);
  font-size: 11px;
  font-weight: 700;
}

@media (max-width: 480px) {
  .cards-selection-help {
    flex-direction: column;
    align-items: flex-start;
  }

  .card-selected-badge {
    top: 12px;
    right: 12px;
    padding: 5px 8px;
  }
}

/* ===== CALENDAR ===== */
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 3px;
  margin-bottom: 12px;
}

.calendar-day-header {
  text-align: center;
  font-size: 10px;
  font-weight: 600;
  color: var(--text-muted);
  padding: 4px 0;
  text-transform: uppercase;
}

.calendar-day {
  aspect-ratio: 1;
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  position: relative;
  transition: all 0.15s;
  min-height: 36px;
}

.calendar-day:active {
  transform: scale(0.92);
}

.calendar-day .day-number {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1;
}

.calendar-day.today {
  background: var(--primary);
}

.calendar-day.today .day-number {
  color: white;
  font-weight: 700;
}

.calendar-day.other-month .day-number {
  color: var(--text-muted);
  opacity: 0.4;
}

.calendar-day.has-events::after {
  content: '';
  position: absolute;
  bottom: 3px;
  width: 16px;
  height: 3px;
  border-radius: 2px;
  background: var(--primary);
}

.calendar-day.has-income::after { background: var(--secondary); }
.calendar-day.has-expense::after { background: var(--danger); }
.calendar-day.has-both::after {
  background: linear-gradient(90deg, var(--secondary) 50%, var(--danger) 50%);
}

/* ===== TABS ===== */
.tabs {
  display: flex;
  gap: 0;
  border-radius: 12px;
  background: var(--bg-tertiary);
  padding: 3px;
  margin-bottom: 16px;
}

.tab-btn {
  flex: 1;
  padding: 8px 12px;
  border-radius: 10px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.tab-btn.active {
  background: var(--bg-card);
  color: var(--primary);
  box-shadow: var(--shadow);
}

/* ===== SEARCH BAR ===== */
.search-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-input);
  border: 1.5px solid var(--border-color);
  border-radius: 12px;
  padding: 8px 14px;
  margin-bottom: 12px;
}

.search-bar i {
  color: var(--text-muted);
  font-size: 14px;
}

.search-bar input {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--text-primary);
  font-size: 14px;
  outline: none;
  font-family: inherit;
}

.search-bar input::placeholder {
  color: var(--text-muted);
}

/* ===== TOOLTIP BADGE ===== */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  border-radius: 9px;
  font-size: 10px;
  font-weight: 700;
  padding: 0 5px;
}

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

.badge-warning {
  background: var(--warning);
  color: white;
}

/* ===== NOTIFICATION BADGE ===== */
.notif-badge {
  position: absolute;
  top: -2px;
  right: -2px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--danger);
  color: white;
  font-size: 9px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--bg-nav);
}

/* ===== SWIPE ACTIONS ===== */
.swipe-container {
  position: relative;
  overflow: hidden;
  border-radius: 14px;
  margin-bottom: 8px;
}

.swipe-actions {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  display: flex;
  align-items: center;
}

.swipe-action-btn {
  height: 100%;
  min-width: 64px;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 3px;
  cursor: pointer;
  font-size: 11px;
  font-weight: 600;
  color: white;
  transition: min-width 0.2s;
}

/* ===== CATEGORY ICON ===== */
.category-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

/* ===== LOADER ===== */
.skeleton {
  background: linear-gradient(90deg, var(--border-color) 25%, var(--bg-tertiary) 50%, var(--border-color) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: 8px;
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ===== DIVIDER ===== */
.divider {
  height: 1px;
  background: var(--border-color);
  margin: 12px 0;
}

/* ===== LIST ITEM ===== */
.list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  background: var(--bg-card);
  border-radius: 12px;
  border: 1px solid var(--border-color);
  margin-bottom: 8px;
  gap: 10px;
}

.list-item-left {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  min-width: 0;
}

.list-item-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

/* ===== TOGGLE SWITCH ===== */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background-color: var(--border-color-2);
  border-radius: 12px;
  transition: .3s;
}

.toggle-slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  border-radius: 50%;
  transition: .3s;
}

.toggle-switch input:checked + .toggle-slider {
  background-color: var(--primary);
}

.toggle-switch input:checked + .toggle-slider:before {
  transform: translateX(20px);
}

/* ===== COLOR PICKER ===== */
.color-options {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.color-opt {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  border: 3px solid transparent;
  transition: all 0.2s;
}

.color-opt.selected {
  border-color: var(--text-primary);
  transform: scale(1.1);
}

/* ===== FAB ===== */
.fab {
  position: fixed;
  bottom: 80px;
  right: 16px;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  cursor: pointer;
  box-shadow: 0 6px 16px rgba(99,102,241,0.4);
  z-index: 90;
  transition: all 0.2s;
}

.fab:active { transform: scale(0.92); }

/* ===== SCROLL SNAP ===== */
.scroll-snap-x {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  padding-bottom: 6px;
}

.scroll-snap-x::-webkit-scrollbar { display: none; }

.scroll-snap-item {
  scroll-snap-align: start;
  flex-shrink: 0;
}

/* ===== INSTALLMENT BADGE ===== */
.installment-badge {
  background: var(--card-bg);
  color: var(--card-text);
  font-size: 10px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 6px;
}

/* ===== PIE LEGEND ===== */
.pie-legend {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 12px;
}

.pie-legend-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.pie-legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.pie-legend-label {
  flex: 1;
  font-size: 12px;
  color: var(--text-secondary);
}

.pie-legend-value {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
}

/* ===== TOAST ===== */
.toast-container {
  position: fixed;
  top: 70px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 500;
  width: calc(100% - 32px);
  max-width: 440px;
  pointer-events: none;
}

.toast {
  background: var(--bg-modal);
  border-radius: 12px;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-color);
  margin-bottom: 8px;
  animation: toastIn 0.3s cubic-bezier(0.32, 0.72, 0, 1);
  pointer-events: all;
  transition: opacity 0.3s;
}

@keyframes toastIn {
  from { opacity: 0; transform: translateY(-16px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.toast.success i { color: var(--secondary); }
.toast.error i { color: var(--danger); }
.toast.warning i { color: var(--warning); }
.toast.info i { color: var(--primary); }

.toast-msg {
  flex: 1;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
  width: 4px;
  height: 4px;
}

::-webkit-scrollbar-track { background: transparent; }

::-webkit-scrollbar-thumb {
  background: var(--border-color-2);
  border-radius: 2px;
}

/* ===== UTILITY ===== */
.hidden { display: none !important; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.w-full { width: 100%; }
.font-bold { font-weight: 700; }
.text-sm { font-size: 12px; }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--secondary); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-primary { color: var(--primary); }

/* ===== MEDIA QUERIES ===== */
@media (min-width: 480px) {
  #app {
    box-shadow: var(--shadow-xl);
  }
  
  body {
    background: var(--bg-tertiary);
  }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}


/* ===== CARD PURCHASES ===== */
.card-purchase-item {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  cursor: default;
}

.card-purchase-item:active {
  transform: none;
  background: var(--bg-card);
}

.card-purchase-icon {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  font-size: 22px;
}

.card-purchase-info {
  min-width: 0;
}

.card-purchase-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.card-purchase-title-row {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  flex-wrap: wrap;
}

.card-purchase-desc {
  white-space: normal;
  overflow: visible;
  text-overflow: initial;
  line-height: 1.25;
  word-break: break-word;
}

.card-installment-badge {
  flex-shrink: 0;
}

.card-purchase-amount-wrap {
  text-align: right;
  flex-shrink: 0;
}

.card-purchase-amount {
  font-size: 14px;
  line-height: 1.1;
}

.card-purchase-total {
  margin-top: 3px;
  font-size: 10px;
  color: var(--text-muted);
}

.card-purchase-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 6px;
  flex-wrap: wrap;
}

.card-purchase-dot {
  font-size: 11px;
  color: var(--text-muted);
}

.card-purchase-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.card-purchase-delete {
  color: var(--danger);
}

@media (max-width: 640px) {
  .card-purchase-item {
    grid-template-columns: 48px minmax(0, 1fr);
    align-items: start;
  }

  .card-purchase-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    font-size: 20px;
  }

  .card-purchase-header {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .card-purchase-amount-wrap {
    text-align: left;
  }

  .card-purchase-actions {
    grid-column: 1 / -1;
    justify-content: flex-end;
    margin-top: 4px;
    padding-top: 4px;
    border-top: 1px solid var(--border-color);
  }
}