/* ==========================================================================
   Money Book : Expense Tracker - Executive FinTech Design System
   ========================================================================== */

:root {
  /* Curated Slate-Indigo & FinTech Palette */
  --primary: #4070C8;
  --primary-hover: #335FB0;
  --primary-active: #274D94;
  --primary-light: #6B96D8;
  --primary-dark: #1E3A75;
  --primary-subtle: rgba(64, 112, 200, 0.08);
  --primary-border: rgba(64, 112, 200, 0.2);
  --primary-glow: rgba(64, 112, 200, 0.25);
  
  /* Elegant muted teal for income (professional, not loud) */
  --income: #0B8A6A;
  --income-hover: #076F55;
  --income-subtle: rgba(11, 138, 106, 0.09);
  --income-border: rgba(11, 138, 106, 0.2);
  
  /* Elegant dusty rose for expense (refined, not harsh) */
  --expense: #C0445C;
  --expense-hover: #A8344A;
  --expense-subtle: rgba(192, 68, 92, 0.09);
  --expense-border: rgba(192, 68, 92, 0.2);
  
  --warning: #F59E0B;
  --warning-subtle: rgba(245, 158, 11, 0.1);
  --warning-border: rgba(245, 158, 11, 0.25);

  --purple: #8B5CF6;
  --purple-subtle: rgba(139, 92, 246, 0.1);

  /* Light Theme (Crisp, High-End Swiss Style) */
  --bg-app: #F8FAFC;
  --bg-surface: #FFFFFF;
  --bg-surface-elevated: #FFFFFF;
  --bg-card: rgba(255, 255, 255, 0.92);
  --bg-hover: #F1F5F9;
  --bg-active: #E2E8F0;
  --bg-sidebar: #FFFFFF;
  
  --border-color: #E2E8F0;
  --border-subtle: #EDF2F7;
  --border-glass: rgba(255, 255, 255, 0.8);
  
  --text-main: #0F172A;
  --text-muted: #64748B;
  --text-light: #94A3B8;

  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 2px 8px -1px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 8px 24px -3px rgba(15, 23, 42, 0.06), 0 4px 10px -2px rgba(15, 23, 42, 0.03);
  --shadow-lg: 0 20px 42px -6px rgba(15, 23, 42, 0.09), 0 8px 18px -3px rgba(15, 23, 42, 0.04);
  --shadow-card: 0 12px 34px -5px rgba(64, 112, 200, 0.09);

  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  --transition-fast: 160ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 260ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-bounce: 400ms cubic-bezier(0.34, 1.56, 0.64, 1);

  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

[data-theme="dark"] {
  --bg-app: #080D1A;
  --bg-surface: #0F172A;
  --bg-surface-elevated: #162238;
  --bg-card: rgba(15, 23, 42, 0.88);
  --bg-hover: #1E2D4A;
  --bg-active: #243557;
  --bg-sidebar: #0B1222;
  
  --border-color: #1E293B;
  --border-subtle: #192437;
  --border-glass: rgba(255, 255, 255, 0.08);
  
  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  --text-light: #64748B;

  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-sm: 0 3px 8px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 10px 25px -3px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 20px 48px -5px rgba(0, 0, 0, 0.6);
  --shadow-card: 0 12px 36px -5px rgba(0, 0, 0, 0.5);
}

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

html, body {
  min-height: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-app);
  color: var(--text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  outline: none;
}

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

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

/* ==========================================================================
   Splash / Session Restorer (Zero-Flicker Login Persistence)
   ========================================================================== */
.splash-loader-screen {
  position: fixed;
  inset: 0;
  background: var(--bg-app);
  z-index: 200;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  transition: opacity 300ms ease, visibility 300ms ease;
}

.splash-loader-screen.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.splash-logo-pulse {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  box-shadow: 0 12px 32px var(--primary-glow);
  animation: logoPulse 1.8s infinite ease-in-out;
}

@keyframes logoPulse {
  0%, 100% { transform: scale(1); box-shadow: 0 10px 28px var(--primary-glow); }
  50% { transform: scale(1.06); box-shadow: 0 18px 44px rgba(64, 112, 200, 0.45); }
}

.splash-text {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text-main);
}

.splash-sub {
  font-size: 0.84rem;
  color: var(--text-muted);
}

/* ==========================================================================
   World-Class Executive Login Page (Desktop & Mobile)
   ========================================================================== */
.auth-hero-overlay {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 15% 15%, rgba(64, 112, 200, 0.12) 0%, var(--bg-app) 55%);
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
  overflow-y: auto;
}

.auth-hero-overlay.visible {
  display: flex;
  animation: fadeIn 300ms ease-out;
}

.auth-split-wrapper {
  max-width: 1100px;
  width: 100%;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}

/* Left Hero Showcase Pane */
.auth-showcase-pane {
  background: linear-gradient(145deg, rgba(64, 112, 200, 0.08) 0%, rgba(30, 58, 117, 0.14) 100%);
  border-right: 1px solid var(--border-color);
  padding: 52px 48px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}

.auth-showcase-pane::before {
  content: '';
  position: absolute;
  top: -90px;
  left: -90px;
  width: 300px;
  height: 300px;
  border-radius: var(--radius-full);
  background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
  pointer-events: none;
}

.auth-brand-badge-row {
  display: flex;
  align-items: center;
  gap: 14px;
}

.auth-logo-box {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  box-shadow: 0 6px 20px var(--primary-glow);
}

.auth-brand-name {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.auth-preview-card {
  margin: 36px 0;
  background: var(--bg-surface);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 26px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  position: relative;
  overflow: hidden;
}

.auth-preview-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transform: translateX(-100%);
  animation: previewShimmer 3.5s infinite;
}

@keyframes previewShimmer {
  100% { transform: translateX(100%); }
}

.preview-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: var(--primary-subtle);
  color: var(--primary);
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 14px;
}

.preview-val-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.preview-balance-num {
  font-family: var(--font-heading);
  font-size: 2.35rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.02em;
  margin: 4px 0 16px 0;
}

.preview-stat-pills {
  display: flex;
  gap: 12px;
}

.preview-pill {
  flex: 1;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
}

.preview-pill.in {
  background: var(--income-subtle);
  color: var(--income);
}

.preview-pill.out {
  background: var(--expense-subtle);
  color: var(--expense);
}

.pill-lbl {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
}

.pill-amt {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 800;
}

/* Feature bullets */
.auth-bullets-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.auth-bullet-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
}

.bullet-check-icon {
  width: 22px;
  height: 22px;
  border-radius: var(--radius-full);
  background: var(--income-subtle);
  color: var(--income);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* Right Form Action Pane */
.auth-form-pane {
  padding: 56px 48px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 28px;
}

.auth-form-header h2 {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}

.auth-form-header p {
  color: var(--text-muted);
  font-size: 0.94rem;
  line-height: 1.5;
}

/* Returning User Card (Instant 1-Click Resume) */
.returning-user-card {
  display: none;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  background: var(--bg-hover);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.returning-user-card.visible {
  display: flex;
}

.returning-avatar {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--primary);
  color: #FFFFFF;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border: 2px solid var(--primary-border);
}

.returning-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.returning-meta {
  flex: 1;
  min-width: 0;
}

.returning-name {
  font-size: 0.95rem;
  font-weight: 700;
}

.returning-email {
  font-size: 0.78rem;
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Google Sign-In Button */
.btn-google-auth {
  width: 100%;
  padding: 15px 22px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-surface-elevated);
  font-weight: 700;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--text-main);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.btn-google-auth:hover {
  background: var(--bg-hover);
  border-color: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.google-icon-svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

/* Security Trust Badges */
.auth-trust-box {
  display: flex;
  align-items: center;
  justify-content: space-around;
  padding: 18px 0 0 0;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.75rem;
  color: var(--text-muted);
  gap: 10px;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
}

/* ==========================================================================
   Application Shell Layout
   ========================================================================== */
.app-container {
  display: flex;
  min-height: 100vh;
  width: 100%;
}

/* Desktop Sidebar */
.sidebar {
  width: 260px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  z-index: 40;
}

.brand-header {
  padding: 24px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border-color);
}

.brand-logo {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  box-shadow: 0 4px 14px var(--primary-glow);
}

.brand-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-badge {
  font-size: 0.65rem;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  background: var(--primary-subtle);
  color: var(--primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-left: auto;
}

/* Nav Menu */
.nav-menu {
  list-style: none;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 16px;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.92rem;
  transition: all var(--transition-fast);
  cursor: pointer;
  position: relative;
}

.nav-item:hover {
  background: var(--bg-hover);
  color: var(--text-main);
  transform: translateX(2px);
}

.nav-item.active {
  background: var(--primary-subtle);
  color: var(--primary);
  font-weight: 700;
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  bottom: 9px;
  width: 4px;
  background: var(--primary);
  border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
}

.nav-badge {
  margin-left: auto;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  background: var(--warning-subtle);
  color: var(--warning);
}

/* Sidebar Footer */
.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border-color);
}

.user-profile-widget {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--radius-md);
  background: var(--bg-hover);
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--primary-subtle);
  color: var(--primary);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border: 1.5px solid var(--primary-border);
  flex-shrink: 0;
}

.user-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.user-name {
  font-size: 0.88rem;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-email {
  font-size: 0.74rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.btn-signout {
  padding: 6px;
  border-radius: var(--radius-xs);
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.btn-signout:hover {
  background: var(--expense-subtle);
  color: var(--expense);
}

/* ==========================================================================
   Top Header Bar
   ========================================================================== */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.top-bar {
  height: 70px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.page-title-box h1 {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.page-title-box p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.top-bar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Sync Pill */
.cloud-sync-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--income);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: var(--income-subtle);
}

.sync-dot {
  width: 7px;
  height: 7px;
  border-radius: var(--radius-full);
  background: var(--income);
  animation: pulseDot 2s infinite ease-in-out;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.currency-selector {
  padding: 7px 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-surface-elevated);
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-main);
  outline: none;
  cursor: pointer;
  transition: border-color var(--transition-fast);
}

.currency-selector:focus {
  border-color: var(--primary);
}

.btn-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-surface-elevated);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-main);
  transition: all var(--transition-fast);
}

.btn-icon:hover {
  background: var(--bg-hover);
  border-color: var(--text-light);
  transform: translateY(-1px);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #FFFFFF;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: 0 4px 14px var(--primary-glow);
  transition: all var(--transition-fast);
}

.btn-primary:hover {
  opacity: 0.95;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--primary-glow);
}

.btn-secondary {
  padding: 8px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-surface-elevated);
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--text-main);
  transition: all var(--transition-fast);
}

.btn-secondary:hover {
  background: var(--bg-hover);
}

/* ==========================================================================
   Home Page Overview (FinTech Dashboard Layout)
   ========================================================================== */
.view-viewport {
  padding: 28px 32px;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

.view-section {
  display: none;
  animation: fadeIn 220ms cubic-bezier(0.16, 1, 0.3, 1);
}

.view-section.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Executive Metric Grid */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1.55fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

/* Sky-Indigo Premium Balance Card */
.balance-card-master {
  background: linear-gradient(
    135deg,
    #E8F4FD 0%,
    #D4E9F9 30%,
    #C8DFF5 60%,
    rgba(64, 112, 200, 0.12) 100%
  );
  border: 1px solid rgba(100, 160, 220, 0.35);
  border-radius: var(--radius-xl);
  padding: 28px 32px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(56, 120, 200, 0.14), 0 2px 8px rgba(56, 120, 200, 0.08);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

[data-theme="dark"] .balance-card-master {
  background: linear-gradient(
    135deg,
    rgba(30, 80, 160, 0.35) 0%,
    rgba(20, 55, 120, 0.28) 50%,
    rgba(10, 30, 80, 0.18) 100%
  );
  border-color: rgba(80, 140, 220, 0.22);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45), 0 2px 8px rgba(30, 80, 180, 0.2);
}

.balance-card-master::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 260px;
  height: 260px;
  border-radius: var(--radius-full);
  background: radial-gradient(circle, rgba(100, 170, 240, 0.22) 0%, transparent 70%);
  pointer-events: none;
}

.balance-card-master::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -40px;
  width: 280px;
  height: 280px;
  border-radius: var(--radius-full);
  background: radial-gradient(circle, rgba(64, 112, 200, 0.12) 0%, transparent 65%);
  pointer-events: none;
}

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

.balance-label-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--primary);
}

.btn-eye-toggle {
  color: var(--text-muted);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  padding: 3px;
  border-radius: var(--radius-xs);
  transition: all var(--transition-fast);
}

.btn-eye-toggle:hover {
  color: var(--text-main);
  background: var(--bg-hover);
}

.savings-chip {
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.74rem;
  font-weight: 700;
  background: var(--income-subtle);
  color: var(--income);
}

.savings-chip.negative {
  background: var(--expense-subtle);
  color: var(--expense);
}

.balance-amount {
  font-family: var(--font-heading);
  font-size: 2.85rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.cashflow-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.flow-box {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(180, 210, 240, 0.5);
  border-radius: var(--radius-lg);
  padding: 16px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

[data-theme="dark"] .flow-box {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.07);
}

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

.flow-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* Elegant soft-teal for income */
.flow-box.in .flow-icon {
  background: rgba(11, 138, 106, 0.1);
  color: #0B8A6A;
}

.flow-box.in .flow-val {
  color: #0B8A6A;
}

/* Refined dusty-rose for expense */
.flow-box.out .flow-icon {
  background: rgba(192, 68, 92, 0.1);
  color: #C0445C;
}

.flow-box.out .flow-val {
  color: #C0445C;
}

.flow-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.flow-val {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

/* Quick Actions Tile Card */
.quick-actions-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.card-title-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.action-buttons-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.btn-action-tile {
  padding: 18px 14px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  background: var(--bg-surface-elevated);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-main);
  transition: all var(--transition-fast);
}

.btn-action-tile:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.btn-action-tile.in:hover {
  background: var(--income-subtle);
  border-color: var(--income-border);
  color: var(--income);
}

.btn-action-tile.out:hover {
  background: var(--expense-subtle);
  border-color: var(--expense-border);
  color: var(--expense);
}

.tile-icon-circle {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-action-tile.in .tile-icon-circle {
  background: var(--income-subtle);
  color: var(--income);
}

.btn-action-tile.out .tile-icon-circle {
  background: var(--expense-subtle);
  color: var(--expense);
}

/* Secondary 2-Metric Strip */
.secondary-metric-strip {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}

.metric-pill-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 18px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-xs);
  transition: transform var(--transition-fast);
}

.metric-pill-box:hover {
  transform: translateY(-2px);
}

.metric-pill-meta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.metric-pill-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ==========================================================================
   Analytics Chart & Breakdown
   ========================================================================== */
.analytics-row {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
  margin-bottom: 28px;
}

.chart-card, .breakdown-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.chart-wrapper {
  position: relative;
  height: 270px;
  width: 100%;
}

.category-mini-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 10px;
  overflow-y: auto;
  max-height: 260px;
}

.cat-item-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  background: var(--bg-hover);
}

.cat-info-col {
  display: flex;
  align-items: center;
  gap: 10px;
}

.cat-badge {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
}

.cat-name {
  font-size: 0.88rem;
  font-weight: 600;
}

.cat-amount {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
}

/* ==========================================================================
   Transactions Table
   ========================================================================== */
.section-panel {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 28px;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  gap: 16px;
  flex-wrap: wrap;
}

.search-filter-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.search-input-box {
  position: relative;
  min-width: 240px;
}

.search-input-box input {
  width: 100%;
  padding: 8px 14px 8px 36px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-surface-elevated);
  font-size: 0.88rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.search-input-box input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-subtle);
}

.search-icon-pos {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-light);
  pointer-events: none;
}

.filter-pills {
  display: flex;
  align-items: center;
  background: var(--bg-hover);
  padding: 3px;
  border-radius: var(--radius-md);
}

.filter-pill {
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.filter-pill.active {
  background: var(--bg-surface);
  color: var(--primary);
  box-shadow: var(--shadow-xs);
}

.tx-table-container {
  overflow-x: auto;
}

.tx-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.tx-table th {
  padding: 12px 16px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border-color);
}

.tx-table td {
  padding: 16px;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.92rem;
  vertical-align: middle;
}

.tx-table tr:last-child td {
  border-bottom: none;
}

.tx-table tr:hover td {
  background: var(--bg-hover);
}

.tx-title-cell {
  display: flex;
  align-items: center;
  gap: 12px;
}

.tx-cat-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  flex-shrink: 0;
}

.tx-title-text {
  font-weight: 600;
  color: var(--text-main);
}

.cat-pill {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  font-size: 0.74rem;
  font-weight: 600;
  background: var(--bg-hover);
  color: var(--text-muted);
  margin-top: 2px;
}

.tx-amount-cell {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  white-space: nowrap;
}

.tx-amount-cell.in {
  color: var(--income);
}

.tx-amount-cell.out {
  color: var(--expense);
}

.due-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 700;
  background: var(--warning-subtle);
  color: var(--warning);
}

.due-tag.paid {
  background: var(--income-subtle);
  color: var(--income);
}

.btn-table-action {
  padding: 6px;
  border-radius: var(--radius-xs);
  color: var(--text-light);
  transition: all var(--transition-fast);
}

.btn-table-action:hover {
  background: var(--expense-subtle);
  color: var(--expense);
}

/* Empty State */
.empty-state {
  padding: 48px 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.empty-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-full);
  background: var(--primary-subtle);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 4px;
}

.empty-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
}

.empty-sub {
  font-size: 0.88rem;
  color: var(--text-muted);
  max-width: 400px;
}

/* ==========================================================================
   Budgets & Dues Grid
   ========================================================================== */
.budgets-grid, .dues-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.budget-card, .due-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 22px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.budget-card:hover, .due-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.budget-card-header, .due-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.budget-cat-name {
  font-weight: 700;
  font-size: 1.05rem;
}

.budget-status-pill {
  font-size: 0.74rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--radius-full);
}

.budget-status-pill.safe {
  background: var(--income-subtle);
  color: var(--income);
}

.budget-status-pill.warning {
  background: var(--warning-subtle);
  color: var(--warning);
}

.budget-status-pill.danger {
  background: var(--expense-subtle);
  color: var(--expense);
}

.budget-amounts {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.budget-spent {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
}

.budget-total {
  font-size: 0.84rem;
  color: var(--text-muted);
}

.progress-track {
  width: 100%;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--bg-hover);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: var(--radius-full);
  background: var(--primary);
  transition: width 400ms ease;
}

.progress-fill.warning {
  background: var(--warning);
}

.progress-fill.danger {
  background: var(--expense);
}

.due-person {
  font-size: 1.05rem;
  font-weight: 700;
}

.due-amount-box {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--warning);
}

.btn-mark-paid {
  flex: 1;
  padding: 9px;
  border-radius: var(--radius-md);
  background: var(--income-subtle);
  color: var(--income);
  font-size: 0.85rem;
  font-weight: 700;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.btn-mark-paid:hover {
  background: var(--income);
  color: #FFFFFF;
}

/* ==========================================================================
   Split Bills View
   ========================================================================== */
.split-hero {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(64, 112, 200, 0.05) 100%);
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: var(--radius-xl);
  padding: 24px;
  margin-bottom: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.split-members-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.member-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 18px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.member-avatar {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-full);
  background: var(--purple-subtle);
  color: var(--purple);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.member-name {
  font-weight: 700;
  font-size: 0.95rem;
}

/* ==========================================================================
   Native Modal Dialogs
   ========================================================================== */
dialog {
  border: none;
  background: transparent;
  padding: 0;
  max-width: 520px;
  width: 90vw;
  border-radius: var(--radius-xl);
  margin: auto;
  box-shadow: var(--shadow-lg);
}

dialog::backdrop {
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

dialog[open] {
  animation: modalPop 240ms cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalPop {
  from { opacity: 0; transform: scale(0.96) translateY(8px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
}

.modal-close {
  padding: 6px;
  border-radius: var(--radius-xs);
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: var(--bg-hover);
  color: var(--text-main);
}

.modal-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.form-input, .form-select {
  width: 100%;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-surface-elevated);
  font-size: 0.95rem;
  color: var(--text-main);
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-input:focus, .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-subtle);
}

.type-segmented-control {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--bg-hover);
  padding: 4px;
  border-radius: var(--radius-md);
  gap: 4px;
}

.type-toggle-btn {
  padding: 10px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--text-muted);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.type-toggle-btn.in.active {
  background: var(--income);
  color: #FFFFFF;
}

.type-toggle-btn.out.active {
  background: var(--expense);
  color: #FFFFFF;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

/* ==========================================================================
   Toast Notification System
   ========================================================================== */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  box-shadow: var(--shadow-lg);
  font-size: 0.9rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: toastSlide 260ms cubic-bezier(0.16, 1, 0.3, 1);
  min-width: 260px;
}

.toast.success {
  border-left: 4px solid var(--income);
}

.toast.error {
  border-left: 4px solid var(--expense);
}

@keyframes toastSlide {
  from { transform: translateX(30px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ==========================================================================
   Mobile Responsive Rules
   ========================================================================== */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  z-index: 35;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 0 8px;
}

.mobile-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-around;
  height: 100%;
}

.mobile-nav-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  flex: 1;
  padding: 6px 0;
  transition: color var(--transition-fast);
}

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

@media (max-width: 1024px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
  .analytics-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .auth-split-wrapper {
    grid-template-columns: 1fr;
  }
  .auth-showcase-pane {
    display: none;
  }
  .auth-form-pane {
    padding: 40px 24px;
  }
  .secondary-metric-strip {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .sidebar {
    display: none;
  }
  
  .mobile-bottom-nav {
    display: block;
  }
  
  .view-viewport {
    padding: 16px 16px 84px 16px;
  }

  .top-bar {
    padding: 0 16px;
    height: 60px;
  }

  .balance-amount {
    font-size: 2.2rem;
  }

  .cashflow-metrics {
    grid-template-columns: 1fr;
  }

  .action-buttons-grid {
    grid-template-columns: 1fr;
  }

  .btn-primary span {
    display: none;
  }

  .btn-primary {
    padding: 9px 12px;
  }

  #toast-container {
    bottom: 74px;
    right: 16px;
    left: 16px;
  }
}