/* =============================================
   CSS CUSTOM PROPERTIES (DESIGN TOKENS)
   ============================================= */
:root {
  --primary:       #059669;
  --primary-light: #d1fae5;
  --primary-dark:  #047857;

  --danger:        #ef4444;
  --danger-light:  #fee2e2;
  --warning:       #f59e0b;
  --warning-light: #fef3c7;
  --success:       #10b981;
  --success-light: #d1fae5;

  --bg:      #f0fdf4;
  --bg-alt:  #f8fafc;
  --card-bg: #ffffff;

  --text:           #1e293b;
  --text-secondary: #64748b;
  --text-light:     #94a3b8;
  --border:         #e2e8f0;

  --sidebar-width:  240px;
  --header-height:  60px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.07);
  --shadow:    0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);

  --radius:    12px;
  --radius-sm: 8px;
  --radius-lg: 18px;

  --transition: 0.2s ease;
}

/* =============================================
   RESET & BASE
   ============================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }
input, select, textarea, button { font-family: inherit; }
table { border-collapse: collapse; width: 100%; }
.hidden { display: none !important; }

/* =============================================
   PAGE LOADER
   ============================================= */
.page-loader {
  position: fixed; inset: 0;
  background: linear-gradient(135deg, #064e3b 0%, #065f46 100%);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  z-index: 99999; color: white; gap: 16px;
}
.loader-icon { font-size: 56px; animation: pulse 1.5s ease-in-out infinite; }
@keyframes pulse { 0%,100%{transform:scale(1);opacity:1} 50%{transform:scale(1.1);opacity:0.8} }
.page-loader p { font-size: 15px; opacity: 0.8; font-weight: 500; }

/* =============================================
   AUTH SCREEN
   ============================================= */
.auth-bg {
  min-height: 100vh;
  background: linear-gradient(135deg, #064e3b 0%, #065f46 50%, #047857 100%);
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
  position: relative;
  overflow: hidden;
}
.auth-bg::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 20% 80%, rgba(16,185,129,0.15) 0%, transparent 60%),
              radial-gradient(ellipse at 80% 20%, rgba(5,150,105,0.1) 0%, transparent 60%);
  pointer-events: none;
}
.auth-container { width: 100%; max-width: 440px; position: relative; z-index: 1; }
.auth-brand { text-align: center; margin-bottom: 28px; color: white; }
.brand-icon {
  font-size: 52px; margin-bottom: 12px;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.3));
  animation: pulse 2s ease-in-out infinite;
}
.auth-brand h1 { font-size: 30px; font-weight: 800; letter-spacing: -0.5px; }
.auth-brand p { font-size: 15px; opacity: 0.85; margin-top: 6px; }

.auth-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-lg);
}
.auth-card h2 { font-size: 22px; font-weight: 700; margin-bottom: 4px; }
.auth-subtitle { color: var(--text-secondary); font-size: 14px; margin-bottom: 24px; }
.auth-switch { text-align: center; margin-top: 20px; font-size: 14px; color: var(--text-secondary); }

/* Family radio choice */
.family-choice { margin: 16px 0; }
.family-choice-label { font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: 10px; text-transform: uppercase; letter-spacing: 0.5px; }
.radio-group { display: flex; gap: 12px; }
.radio-option {
  flex: 1; display: flex; align-items: center; gap: 10px; padding: 12px;
  border: 2px solid var(--border); border-radius: var(--radius-sm);
  cursor: pointer; font-size: 14px; transition: var(--transition);
}
.radio-option:hover { border-color: var(--primary); background: var(--primary-light); }
.radio-option input[type="radio"] { display: none; }
.radio-custom {
  width: 18px; height: 18px; border: 2px solid var(--border);
  border-radius: 50%; flex-shrink: 0; transition: var(--transition);
}
.radio-option input:checked ~ .radio-custom {
  border-color: var(--primary); background: var(--primary);
  box-shadow: inset 0 0 0 3px white;
}
.radio-option:has(input:checked) { border-color: var(--primary); background: var(--primary-light); }

/* =============================================
   FORM ELEMENTS
   ============================================= */
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block; font-size: 13px; font-weight: 600;
  color: var(--text); margin-bottom: 6px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%; padding: 10px 14px;
  border: 1.5px solid var(--border); border-radius: var(--radius-sm);
  font-size: 14px; color: var(--text); background: white;
  transition: var(--transition); appearance: none; -webkit-appearance: none;
}
.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center; padding-right: 36px;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(5,150,105,0.12);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-actions {
  display: flex; gap: 12px; justify-content: flex-end;
  margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--border);
}
.required { color: var(--danger); }
.hint-text { font-size: 12px; color: var(--text-secondary); margin-top: -8px; margin-bottom: 12px; }

/* Checkbox */
.checkbox-group { margin-bottom: 16px; }
.checkbox-label { display: flex; align-items: center; gap: 10px; cursor: pointer; font-size: 14px; }
.checkbox-label input[type="checkbox"] { display: none; }
.checkbox-custom {
  width: 20px; height: 20px; border: 2px solid var(--border);
  border-radius: 5px; flex-shrink: 0; position: relative; transition: var(--transition);
}
.checkbox-label input:checked ~ .checkbox-custom { background: var(--primary); border-color: var(--primary); }
.checkbox-label input:checked ~ .checkbox-custom::after {
  content: '✓'; position: absolute; color: white; font-size: 13px;
  font-weight: 700; top: 50%; left: 50%; transform: translate(-50%,-50%); line-height: 1;
}

/* =============================================
   BUTTONS
   ============================================= */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 6px; padding: 10px 20px; border: none; border-radius: var(--radius-sm);
  font-size: 14px; font-weight: 600; cursor: pointer; transition: var(--transition);
}
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 4px 14px rgba(5,150,105,0.35); }
.btn-outline { background: transparent; color: var(--text-secondary); border: 1.5px solid var(--border); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }
.btn-full { width: 100%; }
.btn-sm { padding: 7px 14px; font-size: 13px; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none !important; box-shadow: none !important; }

/* =============================================
   ALERTS
   ============================================= */
.alert { padding: 12px 16px; border-radius: var(--radius-sm); font-size: 14px; margin-bottom: 16px; }
.alert-error { background: var(--danger-light); color: #b91c1c; border: 1px solid #fca5a5; }
.alert-success { background: var(--success-light); color: #065f46; border: 1px solid #6ee7b7; }

/* =============================================
   APP LAYOUT
   ============================================= */
#app-screen { display: flex; min-height: 100vh; }

/* SIDEBAR */
#sidebar {
  width: var(--sidebar-width); background: #1e293b;
  display: flex; flex-direction: column;
  position: fixed; top: 0; left: 0; height: 100vh; z-index: 200;
  transition: transform var(--transition);
}
.sidebar-brand {
  display: flex; align-items: center; gap: 12px;
  padding: 22px 20px; border-bottom: 1px solid rgba(255,255,255,0.08);
}
.sidebar-icon { font-size: 24px; }
.sidebar-title { font-size: 18px; font-weight: 800; color: white; letter-spacing: -0.3px; }
.sidebar-nav { flex: 1; padding: 16px 12px; display: flex; flex-direction: column; gap: 3px; overflow-y: auto; }
.nav-item {
  display: flex; align-items: center; gap: 12px; padding: 11px 16px;
  border-radius: var(--radius-sm); color: rgba(255,255,255,0.6);
  font-size: 14px; font-weight: 500; transition: var(--transition); text-decoration: none;
}
.nav-item:hover { background: rgba(255,255,255,0.08); color: white; }
.nav-item.active { background: var(--primary); color: white; box-shadow: 0 2px 8px rgba(5,150,105,0.4); }
.nav-icon { font-size: 18px; width: 24px; text-align: center; }

.sidebar-footer { padding: 16px 20px; border-top: 1px solid rgba(255,255,255,0.08); display: flex; align-items: center; gap: 10px; }
.user-avatar {
  width: 36px; height: 36px; border-radius: 50%; background: var(--primary);
  color: white; display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 16px; flex-shrink: 0;
}
.user-details { flex: 1; min-width: 0; }
.user-name { font-size: 13px; font-weight: 600; color: white; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-family { font-size: 11px; color: rgba(255,255,255,0.45); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.btn-logout { background: none; border: none; color: rgba(255,255,255,0.45); font-size: 18px; cursor: pointer; padding: 6px; border-radius: 6px; transition: var(--transition); flex-shrink: 0; }
.btn-logout:hover { color: var(--danger); background: rgba(239,68,68,0.12); }

/* Mobile Header */
.mobile-header {
  display: none; position: fixed; top: 0; left: 0; right: 0;
  height: var(--header-height); background: #1e293b;
  align-items: center; justify-content: space-between; padding: 0 16px; z-index: 150;
}
.hamburger { background: none; border: none; color: white; font-size: 22px; cursor: pointer; padding: 6px; }
.mobile-title { font-size: 18px; font-weight: 800; color: white; }
.mobile-month { font-size: 12px; color: rgba(255,255,255,0.55); }

/* Sidebar overlay */
.sidebar-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 190; }
.sidebar-overlay.active { display: block; }

/* MAIN CONTENT */
#main-content { margin-left: var(--sidebar-width); flex: 1; min-height: 100vh; display: flex; flex-direction: column; }

/* TOP BAR */
.top-bar {
  position: sticky; top: 0; z-index: 100;
  background: rgba(240,253,244,0.95); backdrop-filter: blur(10px);
  padding: 14px 32px; display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid var(--border);
}
.month-selector { display: flex; align-items: center; gap: 14px; }
.month-btn {
  background: var(--card-bg); border: 1.5px solid var(--border);
  border-radius: var(--radius-sm); padding: 6px 12px; cursor: pointer;
  font-size: 13px; transition: var(--transition); color: var(--text-secondary);
}
.month-btn:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }
#current-month-label { font-size: 16px; font-weight: 700; color: var(--text); min-width: 140px; text-align: center; }

/* SECTIONS */
.section { display: none; padding: 32px; flex: 1; }
.section.active { display: block; }
.section-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 24px; gap: 16px; flex-wrap: wrap; }
.section-header h2 { font-size: 26px; font-weight: 800; color: var(--text); letter-spacing: -0.5px; }
.section-subtitle { color: var(--text-secondary); font-size: 14px; margin-top: 4px; }

/* CARDS */
.card {
  background: var(--card-bg); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 24px;
  border: 1px solid var(--border); margin-bottom: 24px;
}
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; gap: 12px; flex-wrap: wrap; }
.card-header h3 { font-size: 16px; font-weight: 700; color: var(--text); }
.card-total { font-size: 14px; color: var(--text-secondary); }
.card-total strong { color: var(--primary); font-size: 17px; }

/* SUMMARY CARDS (Dashboard) */
.summary-cards {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 20px; margin-bottom: 24px;
}
.summary-card { padding: 20px; display: flex; align-items: center; gap: 16px; border-left: 4px solid transparent; }
.income-card   { border-left-color: var(--success); }
.expense-card  { border-left-color: var(--danger); }
.balance-card  { border-left-color: #f59e0b; }
.savings-card  { border-left-color: #8b5cf6; }
.card-icon { font-size: 34px; }
.card-label { font-size: 11px; font-weight: 600; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.6px; }
.card-value { font-size: 24px; font-weight: 800; color: var(--text); letter-spacing: -0.5px; margin: 3px 0; }
.card-hint { font-size: 11px; color: var(--text-light); }

/* Dashboard 2-col grid */
.dashboard-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }

/* INFO BANNER */
.info-banner {
  display: flex; gap: 12px; background: var(--primary-light);
  border: 1px solid #a7f3d0; border-radius: var(--radius-sm);
  padding: 14px 16px; margin-bottom: 20px;
  font-size: 13.5px; color: #065f46; line-height: 1.65;
}
.info-banner > span { font-size: 20px; flex-shrink: 0; }

/* HINT ICONS */
.hint-icon {
  cursor: pointer; opacity: 0.65; transition: var(--transition);
  display: inline-flex; align-items: center; gap: 4px;
  color: var(--text-secondary); font-size: 12px; font-weight: 500;
  padding: 2px 6px; border-radius: 20px;
}
.hint-icon:hover { opacity: 1; color: var(--primary); background: var(--primary-light); }
.hint-tooltip {
  position: fixed; background: #1e293b; color: white;
  padding: 10px 14px; border-radius: 8px; font-size: 13px;
  max-width: 280px; line-height: 1.55; z-index: 99999;
  pointer-events: none; box-shadow: var(--shadow-lg);
  opacity: 0; transform: translateY(6px); transition: opacity 0.15s, transform 0.15s;
}
.hint-tooltip.show { opacity: 1; transform: translateY(0); }

/* FILTER BAR */
.filter-bar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.filter-btn {
  padding: 6px 14px; border: 1.5px solid var(--border); border-radius: 20px;
  background: var(--card-bg); font-size: 13px; cursor: pointer;
  transition: var(--transition); color: var(--text-secondary); font-weight: 500;
}
.filter-btn:hover, .filter-btn.active { border-color: var(--primary); background: var(--primary-light); color: var(--primary); }

/* TRANSACTION LIST (Dashboard) */
.transactions-list { display: flex; flex-direction: column; }
.transaction-item {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 0; border-bottom: 1px solid var(--border); transition: var(--transition);
}
.transaction-item:last-child { border-bottom: none; }
.transaction-icon { width: 40px; height: 40px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 18px; flex-shrink: 0; }
.transaction-icon.income-icon { background: var(--success-light); }
.transaction-icon.expense-icon { background: var(--danger-light); }
.transaction-info { flex: 1; min-width: 0; }
.transaction-name { font-size: 14px; font-weight: 600; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.transaction-meta { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }
.transaction-amount { font-size: 15px; font-weight: 700; flex-shrink: 0; }
.transaction-amount.income { color: var(--success); }
.transaction-amount.expense { color: var(--danger); }

/* INCOME LIST */
.income-list { display: flex; flex-direction: column; }
.income-item {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 0; border-bottom: 1px solid var(--border);
}
.income-item:last-child { border-bottom: none; }
.income-badge {
  padding: 3px 10px; border-radius: 20px; font-size: 11px;
  font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; display: inline-block;
}
.badge-biweekly    { background: #dbeafe; color: #1e40af; }
.badge-monthly     { background: var(--primary-light); color: var(--primary-dark); }
.badge-one-time    { background: #f3e8ff; color: #7e22ce; }

/* EXPENSES LIST */
.expenses-list { display: flex; flex-direction: column; }
.expense-item { display: flex; align-items: center; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--border); }
.expense-item:last-child { border-bottom: none; }
.expense-category { width: 40px; height: 40px; border-radius: 10px; background: var(--danger-light); display: flex; align-items: center; justify-content: center; font-size: 18px; flex-shrink: 0; }

/* ACTION BUTTONS (inline) */
.item-actions { display: flex; gap: 6px; opacity: 0; transition: var(--transition); }
.income-item:hover .item-actions,
.expense-item:hover .item-actions { opacity: 1; }
.action-btn {
  background: none; border: none; cursor: pointer; padding: 5px 9px;
  border-radius: 6px; font-size: 14px; transition: var(--transition); color: var(--text-secondary);
}
.action-btn:hover { background: var(--bg-alt); }
.action-btn.delete:hover { background: var(--danger-light); color: var(--danger); }
.action-btn.edit:hover   { background: var(--primary-light); color: var(--primary); }

/* BUDGET CATEGORIES */
.budget-categories { display: flex; flex-direction: column; gap: 18px; }
.budget-category-row {
  display: grid; grid-template-columns: 180px 1fr 130px;
  align-items: center; gap: 16px; padding: 12px;
  border-radius: var(--radius-sm); background: var(--bg);
  transition: var(--transition);
}
.budget-category-row:hover { background: var(--primary-light); }
.budget-category-label { font-size: 14px; font-weight: 600; color: var(--text); display: flex; align-items: center; gap: 8px; }
.category-spent { font-size: 12px; color: var(--text-secondary); margin-top: 3px; }
.progress-bar-container { display: flex; flex-direction: column; gap: 5px; }
.progress-track { height: 8px; background: var(--border); border-radius: 4px; overflow: hidden; }
.progress-fill { height: 100%; border-radius: 4px; transition: width 0.5s ease; }
.progress-fill.safe    { background: var(--success); }
.progress-fill.warning { background: var(--warning); }
.progress-fill.danger  { background: var(--danger); }
.budget-input { padding: 8px 12px; border: 1.5px solid var(--border); border-radius: var(--radius-sm); font-size: 14px; width: 100%; transition: var(--transition); font-weight: 600; }
.budget-input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(5,150,105,0.12); }
.budget-income-ref { font-size: 13px; color: var(--text-secondary); display: flex; align-items: center; gap: 6px; }

/* REPORTS */
.reports-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 24px; }
.chart-container { position: relative; height: 280px; display: flex; align-items: center; justify-content: center; }

/* SUMMARY TABLE */
.table-responsive { overflow-x: auto; }
.summary-table th, .summary-table td { padding: 12px 16px; text-align: right; font-size: 14px; border-bottom: 1px solid var(--border); }
.summary-table th { background: var(--bg); font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.6px; color: var(--text-secondary); }
.summary-table th:first-child, .summary-table td:first-child { text-align: left; }
.summary-table tbody tr:hover { background: var(--bg); }
.savings-positive { color: var(--success); font-weight: 700; }
.savings-negative { color: var(--danger); font-weight: 700; }

/* FAMILY */
.family-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 24px; }
.family-code-display { text-align: center; padding: 24px 0; }
.family-code-value {
  font-size: 38px; font-weight: 800; letter-spacing: 0.4em; color: var(--primary);
  background: var(--primary-light); padding: 16px 24px; border-radius: var(--radius);
  display: inline-block; margin-bottom: 12px; font-family: 'Courier New', monospace;
  border: 2px dashed #6ee7b7;
}
.family-name-display { font-size: 16px; font-weight: 700; color: var(--text); margin-bottom: 16px; }
.members-list { display: flex; flex-direction: column; gap: 12px; }
.member-item { display: flex; align-items: center; gap: 12px; padding: 12px; border-radius: var(--radius-sm); background: var(--bg); transition: var(--transition); }
.member-item:hover { background: var(--primary-light); }
.member-avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--primary); color: white; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 16px; flex-shrink: 0; }
.member-role { padding: 3px 10px; border-radius: 12px; font-size: 11px; font-weight: 700; }
.role-admin  { background: #fef3c7; color: #d97706; }
.role-member { background: var(--primary-light); color: var(--primary-dark); }
.contributions-list { display: flex; flex-direction: column; gap: 14px; }
.contribution-item { display: flex; align-items: center; gap: 16px; padding: 14px; background: var(--bg); border-radius: var(--radius-sm); }
.contribution-amount { font-size: 16px; font-weight: 800; color: var(--danger); flex-shrink: 0; min-width: 90px; text-align: right; }

/* MODALS */
.modal { position: fixed; inset: 0; z-index: 1000; display: flex; align-items: center; justify-content: center; padding: 16px; }
.modal.hidden { display: none !important; }
.modal-overlay { position: absolute; inset: 0; background: rgba(0,0,0,0.55); backdrop-filter: blur(3px); }
.modal-box {
  position: relative; background: white; border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg); width: 100%; max-width: 520px;
  max-height: 90vh; overflow-y: auto;
  animation: modalIn 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.modal-small { max-width: 360px; }
@keyframes modalIn {
  from { opacity: 0; transform: translateY(-24px) scale(0.95); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px; border-bottom: 1px solid var(--border);
  position: sticky; top: 0; background: white; z-index: 1;
}
.modal-header h3 { font-size: 18px; font-weight: 700; color: var(--text); }
.modal-close { background: none; border: none; font-size: 20px; cursor: pointer; color: var(--text-secondary); padding: 4px 8px; border-radius: 6px; transition: var(--transition); }
.modal-close:hover { background: var(--bg-alt); color: var(--text); }
.modal-box form { padding: 24px; }

/* Quick Add */
.quick-add-options { display: flex; flex-direction: column; gap: 12px; padding: 20px; }
.quick-add-btn {
  display: flex; align-items: center; gap: 16px; padding: 18px 20px;
  border: 2px solid var(--border); border-radius: var(--radius); background: white;
  cursor: pointer; transition: var(--transition); text-align: left;
}
.quick-add-btn:hover { border-color: var(--primary); background: var(--primary-light); transform: translateX(4px); }
.qa-icon { font-size: 32px; }
.qa-title { font-size: 16px; font-weight: 700; color: var(--text); display: block; }
.qa-sub { font-size: 13px; color: var(--text-secondary); display: block; margin-top: 2px; }

/* CALC HINT */
.calc-hint { background: #dbeafe; border: 1px solid #93c5fd; color: #1e40af; padding: 10px 14px; border-radius: var(--radius-sm); font-size: 13px; margin-bottom: 16px; font-weight: 500; }

/* BUDGET MINI (Dashboard) */
.budget-mini-list { display: flex; flex-direction: column; gap: 12px; }
.budget-mini-item { display: grid; grid-template-columns: 130px 1fr 110px; align-items: center; gap: 12px; }
.budget-mini-label { font-size: 13px; color: var(--text); font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.budget-mini-amounts { font-size: 12px; color: var(--text-secondary); text-align: right; }

/* EMPTY STATE */
.empty-state { text-align: center; padding: 40px 20px; color: var(--text-secondary); font-size: 14px; }

/* TOAST */
#toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 9999; display: flex; flex-direction: column; gap: 8px; }
.toast {
  padding: 12px 20px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 600;
  color: white; box-shadow: var(--shadow-lg); animation: toastIn 0.3s ease;
  display: flex; align-items: center; gap: 8px; min-width: 260px;
}
.toast-success { background: var(--success); }
.toast-error   { background: var(--danger); }
.toast-info    { background: #3b82f6; }
@keyframes toastIn { from { opacity:0; transform:translateX(30px); } to { opacity:1; transform:translateX(0); } }

/* SPINNER */
.spinner { border: 3px solid rgba(255,255,255,0.3); border-top-color: white; border-radius: 50%; width: 32px; height: 32px; animation: spin 0.7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1100px) {
  .summary-cards { grid-template-columns: repeat(2, 1fr); }
  .dashboard-grid { grid-template-columns: 1fr; }
}
@media (max-width: 900px) {
  .reports-grid { grid-template-columns: 1fr; }
  .family-grid { grid-template-columns: 1fr; }
  .budget-category-row { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  #sidebar { transform: translateX(-100%); }
  #sidebar.open { transform: translateX(0); }
  .mobile-header { display: flex; }
  #main-content { margin-left: 0; padding-top: var(--header-height); }
  .top-bar { padding: 10px 16px; }
  .section { padding: 16px; }
  .summary-cards { grid-template-columns: 1fr 1fr; gap: 12px; }
  .card-value { font-size: 20px; }
  .section-header { flex-wrap: wrap; }
  .budget-category-row { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .summary-cards { grid-template-columns: 1fr 1fr; }
  .auth-card { padding: 24px 20px; }
  .radio-group { flex-direction: column; }
  .family-code-value { font-size: 28px; letter-spacing: 0.25em; }
  .budget-mini-item { grid-template-columns: 1fr 1fr; }
}

/* =============================================
   MOBILE PWA — BOTTOM NAVIGATION
   ============================================= */

/* Always show on mobile, hidden on desktop */
.bottom-nav { display: none; }

@media (max-width: 768px) {

  /* ── Bottom Nav Bar ───────────────────────── */
  .bottom-nav {
    display: flex;
    position: fixed;
    bottom: 0; left: 0; right: 0;
    height: 65px;
    background: #1e293b;
    border-top: 1px solid rgba(255,255,255,0.08);
    z-index: 200;
    align-items: center;
    justify-content: space-around;
    padding-bottom: env(safe-area-inset-bottom, 0px);
    box-shadow: 0 -4px 24px rgba(0,0,0,0.18);
  }

  .bnav-item {
    display: flex; flex-direction: column; align-items: center;
    gap: 3px; text-decoration: none; flex: 1;
    padding: 8px 4px 4px;
    color: rgba(255,255,255,0.45);
    transition: color 0.18s ease;
    cursor: pointer;
  }
  .bnav-item.active  { color: #10b981; }
  .bnav-item:hover   { color: rgba(255,255,255,0.85); }
  .bnav-icon  { font-size: 22px; line-height: 1; }
  .bnav-label { font-size: 10px; font-weight: 600; letter-spacing: 0.3px; }

  /* Active indicator dot */
  .bnav-item.active .bnav-icon {
    position: relative;
  }
  .bnav-item.active .bnav-icon::after {
    content: '';
    position: absolute; bottom: -4px; left: 50%;
    transform: translateX(-50%);
    width: 4px; height: 4px;
    background: #10b981; border-radius: 50%;
  }

  /* ── FAB (Floating Action Button) ─────────── */
  .bnav-fab {
    width: 56px; height: 56px; border-radius: 50%;
    background: linear-gradient(135deg, #059669, #047857);
    border: 3px solid #1e293b;
    color: white; font-size: 28px; font-weight: 300;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; flex-shrink: 0;
    box-shadow: 0 4px 20px rgba(5,150,105,0.55);
    transition: transform 0.2s cubic-bezier(0.34,1.56,0.64,1), box-shadow 0.2s ease;
    margin-bottom: 10px;
    position: relative;
    z-index: 1;
  }
  .bnav-fab:hover, .bnav-fab:active {
    transform: scale(1.12);
    box-shadow: 0 6px 28px rgba(5,150,105,0.7);
  }
  .bnav-fab:active { transform: scale(0.96); }

  /* ── Mobile Header Redesign ───────────────── */
  .mobile-header {
    display: flex;
    position: fixed; top: 0; left: 0; right: 0;
    height: 58px;
    background: #1e293b;
    align-items: center; justify-content: space-between;
    padding: 0 14px;
    padding-top: env(safe-area-inset-top, 0px);
    z-index: 150;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
  }

  .mobile-header-left { flex: 1; }
  .mobile-brand {
    font-size: 16px; font-weight: 800; color: white;
    display: flex; align-items: center; gap: 6px;
  }
  .mobile-brand span { letter-spacing: -0.3px; }

  .mobile-month-nav {
    display: flex; align-items: center; gap: 8px;
    background: rgba(255,255,255,0.07);
    border-radius: 20px; padding: 4px 10px;
  }
  .month-btn-m {
    background: none; border: none; color: rgba(255,255,255,0.6);
    font-size: 11px; cursor: pointer; padding: 2px 4px;
    line-height: 1; border-radius: 4px; transition: color 0.15s;
  }
  .month-btn-m:hover { color: white; }
  #mobile-month-label {
    font-size: 12px; font-weight: 700; color: white;
    white-space: nowrap; min-width: 90px; text-align: center;
  }

  .mobile-header-right {
    flex: 1; display: flex; justify-content: flex-end;
    align-items: center; gap: 6px;
  }
  .mobile-icon-btn {
    width: 36px; height: 36px; border-radius: 50%;
    background: rgba(255,255,255,0.08);
    display: flex; align-items: center; justify-content: center;
    font-size: 16px; text-decoration: none; transition: background 0.15s;
    cursor: pointer;
  }
  .mobile-icon-btn:hover { background: rgba(255,255,255,0.18); }

  /* ── Layout Adjustments ───────────────────── */
  #sidebar { transform: translateX(-100%); }
  #sidebar.open { transform: translateX(0); }

  #main-content {
    margin-left: 0;
    padding-top: 58px;
    padding-bottom: calc(65px + env(safe-area-inset-bottom, 0px));
  }

  /* Hide desktop top bar — month nav lives in mobile header */
  .top-bar { display: none; }

  /* ── Sections ─────────────────────────────── */
  .section { padding: 16px 14px; }
  .section-header h2 { font-size: 22px; }

  /* ── Cards ────────────────────────────────── */
  .card { padding: 16px; border-radius: 14px; margin-bottom: 16px; }
  .summary-cards { grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 16px; }
  .summary-card { padding: 14px 12px; gap: 10px; }
  .card-icon { font-size: 26px; }
  .card-value { font-size: 18px; }
  .card-label { font-size: 10px; }
  .dashboard-grid { grid-template-columns: 1fr; }

  /* ── Touch Targets — minimum 44px ─────────── */
  .filter-btn  { padding: 8px 16px; min-height: 38px; }
  .action-btn  { padding: 8px 12px; min-height: 38px; min-width: 38px; }
  .btn         { padding: 12px 20px; min-height: 44px; }
  .btn-sm      { padding: 9px 16px; min-height: 38px; }

  /* Always show action buttons on mobile (no hover) */
  .item-actions { opacity: 1; }

  /* ── Forms — larger inputs prevent iOS zoom ── */
  .form-group input,
  .form-group select,
  .form-group textarea {
    font-size: 16px !important; /* Prevents iOS auto-zoom */
    padding: 13px 14px;
    min-height: 48px;
  }
  .form-row { grid-template-columns: 1fr; }
  .form-actions { flex-direction: column; }
  .form-actions .btn { width: 100%; }

  /* ── Modal — full bottom sheet on mobile ───── */
  .modal { align-items: flex-end; padding: 0; }
  .modal-box {
    border-radius: 20px 20px 0 0;
    max-height: 92vh;
    width: 100%;
    max-width: 100%;
    padding-bottom: env(safe-area-inset-bottom, 12px);
    animation: sheetUp 0.28s cubic-bezier(0.34,1.2,0.64,1);
  }
  .modal-small { max-width: 100%; }
  @keyframes sheetUp {
    from { transform: translateY(100%); opacity: 0.5; }
    to   { transform: translateY(0);    opacity: 1; }
  }
  .modal-box form { padding: 16px 20px; }

  /* ── Budget rows ──────────────────────────── */
  .budget-category-row { grid-template-columns: 1fr; gap: 8px; padding: 12px; }
  .budget-mini-item    { grid-template-columns: 1fr; gap: 4px; }

  /* ── Reports ──────────────────────────────── */
  .reports-grid { grid-template-columns: 1fr; }
  .chart-container { height: 240px; }

  /* ── Family ───────────────────────────────── */
  .family-grid { grid-template-columns: 1fr; }
  .family-code-value { font-size: 30px; letter-spacing: 0.3em; }

  /* ── Toast position on mobile ─────────────── */
  #toast-container {
    bottom: calc(75px + env(safe-area-inset-bottom, 0px));
    right: 12px; left: 12px;
  }
  .toast { min-width: auto; width: 100%; justify-content: center; }

  /* ── Quick add options — full width ────────── */
  .quick-add-btn { padding: 20px; }

  /* ── Info banner ──────────────────────────── */
  .info-banner { font-size: 13px; }

  /* ── Transaction items ────────────────────── */
  .transaction-name { font-size: 13px; }
  .transaction-amount { font-size: 14px; }
}

/* ── Standalone PWA mode tweaks ──────────────── */
@media (display-mode: standalone) {
  .mobile-header {
    padding-top: max(env(safe-area-inset-top), 12px);
    height: calc(58px + env(safe-area-inset-top));
  }
  #main-content { padding-top: calc(58px + env(safe-area-inset-top)); }
  .bottom-nav {
    padding-bottom: max(env(safe-area-inset-bottom), 8px);
    height: calc(65px + env(safe-area-inset-bottom));
  }
}

/* ── Very small screens (≤360px) ─────────────── */
@media (max-width: 360px) {
  .summary-cards { grid-template-columns: 1fr 1fr; gap: 8px; }
  .card-value { font-size: 16px; }
  .bnav-label { display: none; }
  .bnav-icon  { font-size: 24px; }
}