/* ─────────────────────────────────────────────
   Money Manager — style.css
   Dark Glassmorphism Design System
───────────────────────────────────────────── */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --bg-deep:       #0a0e1a;
  --bg-card:       rgba(255,255,255,0.04);
  --bg-card-hover: rgba(255,255,255,0.08);
  --border:        rgba(255,255,255,0.10);
  --border-bright: rgba(255,255,255,0.20);

  --accent-blue:   #4f8ef7;
  --accent-purple: #9b6dff;
  --accent-green:  #34d399;
  --accent-red:    #f87171;
  --accent-yellow: #fbbf24;
  --accent-teal:   #2dd4bf;
  --accent-pink:   #f472b6;
  --accent-orange: #fb923c;

  --text-primary:   #f0f4ff;
  --text-secondary: #8b93b0;
  --text-muted:     #4a5270;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  --shadow-glow-blue:   0 0 30px rgba(79,142,247,0.15);
  --shadow-glow-purple: 0 0 30px rgba(155,109,255,0.15);
  --shadow-glow-green:  0 0 30px rgba(52,211,153,0.15);
  --shadow-card:        0 8px 32px rgba(0,0,0,0.4);

  --transition: all 0.25s cubic-bezier(0.4,0,0.2,1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-deep);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── Background orbs ── */
body::before, body::after {
  content: '';
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.18;
  pointer-events: none;
  z-index: 0;
}
body::before {
  width: 600px; height: 600px;
  background: radial-gradient(circle, #4f8ef7, transparent);
  top: -200px; left: -200px;
}
body::after {
  width: 500px; height: 500px;
  background: radial-gradient(circle, #9b6dff, transparent);
  bottom: -150px; right: -150px;
}

/* ─────────── ONBOARDING OVERLAY ─────────── */
#onboarding {
  position: fixed; inset: 0;
  background: rgba(10,14,26,0.97);
  backdrop-filter: blur(20px);
  display: flex; align-items: center; justify-content: center;
  z-index: 9999;
  transition: opacity 0.4s ease;
}
#onboarding.hidden { opacity: 0; pointer-events: none; }

.onboard-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-xl);
  padding: 48px;
  max-width: 480px;
  width: 90%;
  text-align: center;
  box-shadow: var(--shadow-card), var(--shadow-glow-purple);
  animation: fadeInScale 0.5s ease;
}
.onboard-card .logo {
  font-size: 48px; margin-bottom: 16px;
}
.onboard-card h1 {
  font-size: 28px; font-weight: 800;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  margin-bottom: 8px;
}
.onboard-card p {
  color: var(--text-secondary); font-size: 15px; margin-bottom: 32px;
}
.onboard-card label {
  display: block; text-align: left;
  font-size: 13px; font-weight: 600;
  color: var(--text-secondary); letter-spacing: 0.5px;
  margin-bottom: 8px;
}
.onboard-card select, .currency-grid {
  margin-bottom: 24px;
}
.currency-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px;
}
.currency-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 12px 8px;
  cursor: pointer;
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  transition: var(--transition);
  display: flex; flex-direction: column; align-items: center; gap: 4px;
}
.currency-btn .cur-symbol {
  font-size: 20px; font-weight: 700;
}
.currency-btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-blue);
  transform: translateY(-2px);
}
.currency-btn.selected {
  border-color: var(--accent-purple);
  background: rgba(155,109,255,0.15);
  box-shadow: 0 0 16px rgba(155,109,255,0.3);
}

/* ─────────── SIDEBAR ─────────── */
.app-layout {
  display: flex;
  min-height: 100vh;
  position: relative; z-index: 1;
}

#sidebar {
  width: 240px;
  background: rgba(255,255,255,0.03);
  border-right: 1px solid var(--border);
  padding: 28px 20px;
  display: flex; flex-direction: column;
  position: fixed; top: 0; left: 0; bottom: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  transition: transform 0.3s ease;
}

.sidebar-logo {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 40px; padding: 0 8px;
}
.sidebar-logo .logo-icon { font-size: 26px; }
.sidebar-logo h2 {
  font-size: 18px; font-weight: 700;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}

.nav-group-label {
  font-size: 10px; font-weight: 700; letter-spacing: 1.5px;
  color: var(--text-muted); text-transform: uppercase;
  padding: 0 8px; margin-bottom: 8px; margin-top: 24px;
}
.nav-group-label:first-of-type { margin-top: 0; }

.nav-link {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 12px; border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px; font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
  margin-bottom: 3px;
}
.nav-link .nav-icon { font-size: 18px; width: 22px; text-align: center; }
.nav-link:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
}
.nav-link.active {
  background: rgba(79,142,247,0.12);
  border-color: rgba(79,142,247,0.25);
  color: var(--accent-blue);
  box-shadow: 0 0 16px rgba(79,142,247,0.1);
}

.sidebar-footer {
  margin-top: auto;
  padding: 16px 12px;
  background: rgba(79,142,247,0.07);
  border: 1px solid rgba(79,142,247,0.15);
  border-radius: var(--radius-sm);
}
.sidebar-footer .currency-display {
  font-size: 12px; color: var(--text-secondary);
  display: flex; align-items: center; gap: 6px;
}
.sidebar-footer .currency-display span { font-size: 16px; }
#change-currency-btn {
  font-size: 11px; color: var(--accent-blue);
  cursor: pointer; text-decoration: underline;
  font-family: inherit; background: none; border: none;
  margin-top: 6px; display: block; padding: 0;
}

/* ─────────── MAIN CONTENT ─────────── */
#main {
  margin-left: 240px;
  flex: 1;
  padding: 32px 36px;
  max-width: calc(100vw - 240px);
}

/* Pages */
.page { display: none; animation: fadeInUp 0.35s ease; }
.page.active { display: block; }

.page-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 28px; flex-wrap: wrap; gap: 16px;
}
.page-title h1 {
  font-size: 26px; font-weight: 800;
}
.page-title p {
  color: var(--text-secondary); font-size: 14px; margin-top: 3px;
}

/* ─────────── STAT CARDS ─────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  backdrop-filter: blur(12px);
}
.stat-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}
.stat-card::before {
  content: '';
  position: absolute; top: -40px; right: -40px;
  width: 120px; height: 120px;
  border-radius: 50%;
  opacity: 0.12;
}
.stat-card.balance::before  { background: var(--accent-blue);   box-shadow: 0 0 60px var(--accent-blue); }
.stat-card.income::before   { background: var(--accent-green);  box-shadow: 0 0 60px var(--accent-green); }
.stat-card.expense::before  { background: var(--accent-red);    box-shadow: 0 0 60px var(--accent-red); }
.stat-card.savings::before  { background: var(--accent-purple); box-shadow: 0 0 60px var(--accent-purple); }

.stat-icon {
  width: 44px; height: 44px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; margin-bottom: 16px;
}
.stat-card.balance .stat-icon  { background: rgba(79,142,247,0.15);  }
.stat-card.income .stat-icon   { background: rgba(52,211,153,0.15);  }
.stat-card.expense .stat-icon  { background: rgba(248,113,113,0.15); }
.stat-card.savings .stat-icon  { background: rgba(155,109,255,0.15); }

.stat-label {
  font-size: 12px; font-weight: 600; letter-spacing: 0.5px;
  color: var(--text-secondary); text-transform: uppercase;
  margin-bottom: 6px;
}
.stat-value {
  font-size: 28px; font-weight: 800;
  letter-spacing: -0.5px; line-height: 1;
}
.stat-card.balance .stat-value  { color: var(--accent-blue);   }
.stat-card.income .stat-value   { color: var(--accent-green);  }
.stat-card.expense .stat-value  { color: var(--accent-red);    }
.stat-card.savings .stat-value  { color: var(--accent-purple); }

.stat-sub {
  font-size: 12px; color: var(--text-muted); margin-top: 8px;
}

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

.chart-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  backdrop-filter: blur(12px);
  transition: var(--transition);
}
.chart-card:hover {
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-card);
}
.chart-card h3 {
  font-size: 15px; font-weight: 700;
  margin-bottom: 20px; color: var(--text-primary);
}
.chart-container { position: relative; height: 240px; }

/* ─────────── RECENT TRANSACTIONS (dashboard) ─────────── */
.recent-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  backdrop-filter: blur(12px);
}
.recent-card .card-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px;
}
.recent-card .card-header h3 { font-size: 15px; font-weight: 700; }
.see-all-btn {
  font-size: 13px; color: var(--accent-blue);
  cursor: pointer; background: none; border: none;
  font-family: inherit; font-weight: 500;
}
.see-all-btn:hover { text-decoration: underline; }

/* ─────────── TRANSACTION ITEM ─────────── */
.tx-list { display: flex; flex-direction: column; gap: 8px; }
.tx-item {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 16px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: var(--transition);
  cursor: default;
}
.tx-item:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-bright);
}
.tx-cat-icon {
  width: 42px; height: 42px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; flex-shrink: 0;
}
.tx-info { flex: 1; min-width: 0; }
.tx-name {
  font-size: 14px; font-weight: 600;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.tx-meta { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.tx-amount {
  font-size: 15px; font-weight: 700; flex-shrink: 0;
}
.tx-amount.income { color: var(--accent-green); }
.tx-amount.expense { color: var(--accent-red); }

.tx-actions { display: flex; gap: 6px; opacity: 0; transition: var(--transition); }
.tx-item:hover .tx-actions { opacity: 1; }
.tx-action-btn {
  width: 28px; height: 28px; border-radius: 7px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer; font-size: 13px;
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
}
.tx-action-btn:hover { background: var(--bg-card-hover); color: var(--text-primary); }
.tx-action-btn.delete:hover { border-color: var(--accent-red); color: var(--accent-red); }
.tx-action-btn.edit:hover   { border-color: var(--accent-blue); color: var(--accent-blue); }

.empty-state {
  text-align: center; padding: 48px 20px;
  color: var(--text-muted); font-size: 14px;
}
.empty-state .empty-icon { font-size: 42px; margin-bottom: 12px; }
.empty-state p { margin-top: 6px; }

/* ─────────── BUTTONS ─────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 20px; border-radius: var(--radius-sm);
  font-family: inherit; font-size: 14px; font-weight: 600;
  cursor: pointer; transition: var(--transition);
  border: none; white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  color: #fff;
  box-shadow: 0 4px 20px rgba(79,142,247,0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(79,142,247,0.4);
}
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
}
.btn-ghost:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-bright);
  color: var(--text-primary);
}

.btn-danger {
  background: rgba(248,113,113,0.1);
  border: 1px solid rgba(248,113,113,0.25);
  color: var(--accent-red);
}
.btn-danger:hover {
  background: rgba(248,113,113,0.2);
}

/* ─────────── MODAL ─────────── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(10,14,26,0.85);
  backdrop-filter: blur(12px);
  display: flex; align-items: center; justify-content: center;
  z-index: 999;
  opacity: 0; pointer-events: none;
  transition: opacity 0.25s ease;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }

.modal {
  background: rgba(15,20,40,0.95);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-xl);
  padding: 36px;
  width: 90%; max-width: 520px;
  box-shadow: var(--shadow-card), var(--shadow-glow-blue);
  transform: translateY(20px) scale(0.97);
  transition: transform 0.25s ease;
}
.modal-overlay.open .modal { transform: translateY(0) scale(1); }

.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 28px;
}
.modal-header h2 { font-size: 20px; font-weight: 700; }
.modal-close {
  width: 32px; height: 32px; border-radius: 8px;
  background: var(--bg-card); border: 1px solid var(--border);
  color: var(--text-secondary); cursor: pointer;
  font-size: 16px; display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
}
.modal-close:hover { background: var(--bg-card-hover); color: var(--text-primary); }

/* Type Toggle */
.type-toggle {
  display: flex; background: rgba(255,255,255,0.05);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 4px; gap: 4px; margin-bottom: 20px;
}
.type-btn {
  flex: 1; padding: 10px; border-radius: 8px;
  border: none; background: transparent;
  font-family: inherit; font-size: 14px; font-weight: 600;
  cursor: pointer; transition: var(--transition);
  color: var(--text-secondary);
}
.type-btn.active.income {
  background: rgba(52,211,153,0.15);
  color: var(--accent-green);
  box-shadow: 0 0 16px rgba(52,211,153,0.1);
}
.type-btn.active.expense {
  background: rgba(248,113,113,0.15);
  color: var(--accent-red);
  box-shadow: 0 0 16px rgba(248,113,113,0.1);
}

/* Form */
.form-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
}
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group.full { grid-column: 1 / -1; }
.form-group label {
  font-size: 12px; font-weight: 600; letter-spacing: 0.5px;
  color: var(--text-secondary); text-transform: uppercase;
}
.form-group input, .form-group select, .form-group textarea {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit; font-size: 14px;
  padding: 12px 14px;
  transition: var(--transition);
  outline: none;
  width: 100%;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--accent-blue);
  background: rgba(79,142,247,0.05);
  box-shadow: 0 0 0 3px rgba(79,142,247,0.1);
}
.form-group select option { background: #1a1f35; }
.form-group textarea { resize: none; height: 80px; }
.modal-footer {
  display: flex; gap: 12px; margin-top: 24px; justify-content: flex-end;
}

/* ─────────── FILTERS BAR ─────────── */
.filters-bar {
  display: flex; gap: 12px; align-items: center;
  flex-wrap: wrap; margin-bottom: 20px;
}
.filter-input {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit; font-size: 13px;
  padding: 10px 14px; outline: none;
  transition: var(--transition);
}
.filter-input:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(79,142,247,0.1);
}
.filter-input::placeholder { color: var(--text-muted); }

/* ─────────── BUDGET PAGE ─────────── */
.budget-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.budget-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px;
  backdrop-filter: blur(12px);
  transition: var(--transition);
}
.budget-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}
.budget-cat-row {
  display: flex; align-items: center; gap: 12px; margin-bottom: 16px;
}
.budget-cat-icon {
  width: 40px; height: 40px; border-radius: 11px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
}
.budget-cat-name { font-size: 15px; font-weight: 600; }
.budget-cat-sub  { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }

.progress-bar-wrap {
  height: 8px; background: rgba(255,255,255,0.07);
  border-radius: 99px; overflow: hidden; margin-bottom: 10px;
}
.progress-bar-fill {
  height: 100%; border-radius: 99px;
  transition: width 0.6s cubic-bezier(0.4,0,0.2,1);
}
.budget-amounts {
  display: flex; justify-content: space-between;
  font-size: 13px; color: var(--text-secondary);
}
.budget-amounts .spent { font-weight: 600; color: var(--text-primary); }

.budget-add-card {
  background: rgba(255,255,255,0.02);
  border: 2px dashed rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: 22px;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 10px; cursor: pointer;
  transition: var(--transition);
  min-height: 160px;
  color: var(--text-muted); font-size: 14px; font-weight: 500;
}
.budget-add-card:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  background: rgba(79,142,247,0.04);
}
.budget-add-card .add-icon { font-size: 28px; }

/* ─────────── ANALYTICS PAGE ─────────── */
.analytics-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
  margin-bottom: 24px;
}
.analytics-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  backdrop-filter: blur(12px);
}
.analytics-card.wide { grid-column: 1 / -1; }
.analytics-card h3 { font-size: 15px; font-weight: 700; margin-bottom: 20px; }
.analytics-chart-container { position: relative; height: 280px; }

/* Category legend */
.cat-legend {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 8px; margin-top: 16px;
}
.cat-legend-item {
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; color: var(--text-secondary);
}
.legend-dot {
  width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0;
}

/* Month selector */
.month-selector {
  display: flex; align-items: center; gap: 10px;
}
.month-selector button {
  width: 30px; height: 30px; border-radius: 8px;
  background: var(--bg-card); border: 1px solid var(--border);
  color: var(--text-primary); cursor: pointer; font-size: 14px;
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
}
.month-selector button:hover { background: var(--bg-card-hover); }
.month-selector span { font-size: 14px; font-weight: 600; min-width: 100px; text-align: center; }

/* ─────────── SETTINGS PAGE ─────────── */
.settings-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 20px;
  backdrop-filter: blur(12px);
}
.settings-section h3 {
  font-size: 15px; font-weight: 700;
  margin-bottom: 20px; padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.setting-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 0; border-bottom: 1px solid var(--border);
}
.setting-row:last-child { border-bottom: none; padding-bottom: 0; }
.setting-label { font-size: 14px; font-weight: 500; }
.setting-desc  { font-size: 12px; color: var(--text-secondary); margin-top: 3px; }

/* ─────────── TOAST ─────────── */
#toast-container {
  position: fixed; bottom: 28px; right: 28px;
  z-index: 9998; display: flex; flex-direction: column; gap: 10px;
  pointer-events: none;
}
.toast {
  display: flex; align-items: center; gap: 12px;
  background: rgba(15,20,40,0.95);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  font-size: 14px; font-weight: 500;
  box-shadow: var(--shadow-card);
  animation: slideInRight 0.3s ease, fadeOut 0.3s ease 2.7s forwards;
  pointer-events: all;
  max-width: 300px;
}
.toast.success { border-left: 3px solid var(--accent-green); }
.toast.error   { border-left: 3px solid var(--accent-red);   }
.toast.info    { border-left: 3px solid var(--accent-blue);  }
.toast-icon    { font-size: 18px; }

/* ─────────── ANIMATIONS ─────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInScale {
  from { opacity: 0; transform: scale(0.95); }
  to   { opacity: 1; transform: scale(1); }
}
@keyframes slideInRight {
  from { opacity: 0; transform: translateX(30px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes fadeOut {
  from { opacity: 1; }
  to   { opacity: 0; transform: translateX(10px); }
}
@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position:  200% 0; }
}

/* ─────────── MOBILE HAMBURGER ─────────── */
#hamburger {
  display: none;
  position: fixed; top: 16px; left: 16px; z-index: 200;
  width: 42px; height: 42px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 10px; cursor: pointer; align-items: center;
  justify-content: center; font-size: 20px;
}
.sidebar-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,0.6); z-index: 99;
}

/* ─────────── RESPONSIVE ─────────── */
@media (max-width: 900px) {
  #sidebar { transform: translateX(-100%); }
  #sidebar.open { transform: translateX(0); }
  #hamburger { display: flex; }
  .sidebar-overlay.open { display: block; }
  #main { margin-left: 0; padding: 80px 20px 32px; max-width: 100vw; }
  .charts-grid, .analytics-grid { grid-template-columns: 1fr; }
  .analytics-card.wide { grid-column: auto; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .stats-grid { grid-template-columns: 1fr; }
  .form-grid  { grid-template-columns: 1fr; }
  .modal { padding: 24px; }
  .cat-legend { grid-template-columns: 1fr; }
}

/* ─────────── SCROLLBAR ─────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

/* ─────────── LOGIN SCREEN ─────────── */
#login-screen {
  position: fixed; inset: 0;
  background: var(--bg-deep);
  display: flex; align-items: center; justify-content: center;
  z-index: 10000;
  transition: opacity 0.4s ease;
}
#login-screen.hidden { display: none; }

.login-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-xl);
  padding: 52px 48px;
  max-width: 480px; width: 90%;
  text-align: center;
  box-shadow: var(--shadow-card), var(--shadow-glow-blue);
  animation: fadeInScale 0.5s ease;
  position: relative; overflow: hidden;
}
.login-card::before {
  content: '';
  position: absolute; top: -80px; left: 50%; transform: translateX(-50%);
  width: 300px; height: 300px; border-radius: 50%;
  background: radial-gradient(circle, rgba(79,142,247,0.12), transparent);
  pointer-events: none;
}

.login-logo { font-size: 52px; margin-bottom: 12px; }
.login-card h1 {
  font-size: 30px; font-weight: 800;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  margin-bottom: 4px;
}
.login-brand { font-size: 13px; color: var(--text-muted); margin-bottom: 12px; letter-spacing: 0.5px; }
.login-desc  { font-size: 14px; color: var(--text-secondary); margin-bottom: 28px; line-height: 1.6; }

.login-features {
  display: grid; grid-template-columns: 1fr 1fr; gap: 10px;
  margin-bottom: 32px;
}
.login-feature {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 12px; color: var(--text-secondary);
  text-align: left; line-height: 1.4;
}

.google-btn {
  display: flex; align-items: center; justify-content: center;
  gap: 12px; width: 100%; padding: 14px 20px;
  background: #fff; color: #1f1f1f;
  border: none; border-radius: var(--radius-sm);
  font-family: inherit; font-size: 15px; font-weight: 600;
  cursor: pointer; transition: var(--transition);
  box-shadow: 0 4px 16px rgba(0,0,0,0.3);
  margin-bottom: 16px;
}
.google-btn:hover {
  background: #f5f5f5;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
.google-btn:disabled { opacity: 0.7; cursor: not-allowed; transform: none; }

.login-privacy { font-size: 12px; color: var(--text-muted); }
.login-divider {
  display: flex; align-items: center; gap: 12px;
  margin: 20px 0; color: var(--text-muted); font-size: 12px;
}
.login-divider::before, .login-divider::after {
  content: ''; flex: 1; height: 1px; background: var(--border);
}

/* ─────────── LOADING OVERLAY ─────────── */
#loading-overlay {
  position: fixed; inset: 0;
  background: rgba(10,14,26,0.92);
  backdrop-filter: blur(12px);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  z-index: 9999; gap: 20px;
}
#loading-overlay.hidden { display: none; }

.loading-spinner {
  width: 48px; height: 48px;
  border: 3px solid rgba(79,142,247,0.2);
  border-top-color: var(--accent-blue);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
.btn-spinner {
  width: 16px; height: 16px;
  border: 2px solid rgba(0,0,0,0.2);
  border-top-color: #333;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }
#loading-msg { font-size: 14px; color: var(--text-secondary); }

/* ─────────── USER PROFILE (sidebar) ─────────── */
.user-profile {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 12px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
}
.user-avatar {
  width: 36px; height: 36px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 700; color: #fff;
  flex-shrink: 0; background-size: cover; background-position: center;
}
.user-info { flex: 1; min-width: 0; }
.user-name  { font-size: 13px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-email { font-size: 10px; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }