@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;1,9..40,300&display=swap');

:root {
  --bg: #0a0f1a;
  --bg-card: #111827;
  --bg-card2: #1a2235;
  --border: #1f2d45;
  --border-light: #2a3a55;
  --accent: #3b82f6;
  --accent-glow: rgba(59,130,246,0.15);
  --accent2: #10b981;
  --accent2-glow: rgba(16,185,129,0.12);
  --accent3: #f59e0b;
  --danger: #ef4444;
  --text: #f1f5f9;
  --text-muted: #64748b;
  --text-soft: #94a3b8;
  --font-head: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --transition: 0.2s cubic-bezier(0.4,0,0.2,1);
}

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

html { font-size: 16px; scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ── AUTH PAGES ── */
.auth-wrapper {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(59,130,246,0.08) 0%, transparent 70%),
              var(--bg);
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2.5rem;
  box-shadow: var(--shadow), 0 0 0 1px rgba(59,130,246,0.05);
  animation: fadeUp 0.4s ease;
}

.auth-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.auth-logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent), #6366f1);
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: 1.25rem;
}

.auth-logo-text {
  font-family: var(--font-head);
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
}

.auth-title {
  font-family: var(--font-head);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.4rem;
}

.auth-subtitle {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

.form-group { margin-bottom: 1.1rem; }

.form-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-soft);
  margin-bottom: 0.4rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.form-input {
  width: 100%;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  width: 100%;
  margin-top: 0.5rem;
}

.btn-primary:hover { background: #2563eb; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(59,130,246,0.3); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

.btn-ghost {
  background: transparent;
  color: var(--text-soft);
  border: 1px solid var(--border);
  padding: 0.6rem 1rem;
  font-size: 0.875rem;
}
.btn-ghost:hover { border-color: var(--border-light); color: var(--text); background: var(--bg-card2); }

.btn-danger { background: rgba(239,68,68,0.1); color: var(--danger); border: 1px solid rgba(239,68,68,0.2); }
.btn-danger:hover { background: rgba(239,68,68,0.2); }

.btn-sm { padding: 0.4rem 0.875rem; font-size: 0.8125rem; }

.auth-footer {
  text-align: center;
  margin-top: 1.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.auth-footer a { color: var(--accent); text-decoration: none; }
.auth-footer a:hover { text-decoration: underline; }

/* ── LAYOUT ── */
.app-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  grid-template-rows: auto 1fr;
  min-height: 100vh;
}

.sidebar {
  grid-row: 1 / -1;
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  padding: 1.5rem 0;
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0 1.5rem 1.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1rem;
}

.sidebar-logo-icon {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--accent), #6366f1);
  border-radius: 9px;
  display: grid;
  place-items: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.sidebar-logo-text {
  font-family: var(--font-head);
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.nav-section {
  padding: 0.25rem 0.75rem;
  margin-bottom: 0.25rem;
}

.nav-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: 0.5rem 0.75rem 0.25rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-sm);
  color: var(--text-soft);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 400;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.nav-item:hover { background: var(--bg-card2); color: var(--text); }

.nav-item.active {
  background: var(--accent-glow);
  color: var(--accent);
  font-weight: 500;
}

.nav-item .nav-icon { font-size: 1.05rem; width: 20px; text-align: center; }

.sidebar-footer {
  margin-top: auto;
  padding: 1rem 0.75rem 0;
  border-top: 1px solid var(--border);
}

.user-chip {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-sm);
}

.user-avatar {
  width: 32px; height: 32px;
  background: linear-gradient(135deg, var(--accent2), #059669);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.user-info { flex: 1; min-width: 0; }
.user-name { font-size: 0.85rem; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-email { font-size: 0.75rem; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ── MAIN CONTENT ── */
.main-content {
  background: var(--bg);
  padding: 2rem 2.5rem;
  overflow-x: hidden;
}

.page-header {
  margin-bottom: 2rem;
}

.page-title {
  font-family: var(--font-head);
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-subtitle {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 0.25rem;
}

/* ── CARDS ── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.card-title {
  font-family: var(--font-head);
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-soft);
  margin-bottom: 1rem;
}

/* ── STATS GRID ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition);
}

.stat-card:hover { border-color: var(--border-light); }

.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), #6366f1);
  opacity: 0;
  transition: opacity var(--transition);
}

.stat-card:hover::before { opacity: 1; }
.stat-card.green::before { background: linear-gradient(90deg, var(--accent2), #059669); }
.stat-card.amber::before { background: linear-gradient(90deg, var(--accent3), #d97706); }
.stat-card.red::before { background: linear-gradient(90deg, var(--danger), #dc2626); }

.stat-label {
  font-size: 0.78rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.stat-value {
  font-family: var(--font-head);
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text);
  line-height: 1.1;
}

.stat-value.accent { color: var(--accent); }
.stat-value.green { color: var(--accent2); }
.stat-value.amber { color: var(--accent3); }

.stat-sub {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* ── DASHBOARD GRID ── */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 1.5rem;
}

/* ── TABLE ── */
.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

thead th {
  padding: 0.625rem 1rem;
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

tbody td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid rgba(31,45,69,0.6);
  color: var(--text-soft);
  vertical-align: middle;
}

tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: rgba(255,255,255,0.02); color: var(--text); }

.merchant-name { font-weight: 500; color: var(--text); }
.amount-cell { font-family: var(--font-head); font-weight: 600; color: var(--text); }
.amount-cell.negative { color: var(--danger); }

/* ── BADGES ── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
  font-size: 0.73rem;
  font-weight: 500;
  white-space: nowrap;
}

.badge-blue { background: var(--accent-glow); color: var(--accent); }
.badge-green { background: var(--accent2-glow); color: var(--accent2); }
.badge-amber { background: rgba(245,158,11,0.1); color: var(--accent3); }
.badge-gray { background: rgba(100,116,139,0.1); color: var(--text-muted); }
.badge-red { background: rgba(239,68,68,0.1); color: var(--danger); }

/* ── CATEGORY BAR ── */
.cat-bar-list { display: flex; flex-direction: column; gap: 0.75rem; }

.cat-bar-item {}
.cat-bar-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.3rem; }
.cat-bar-name { font-size: 0.85rem; font-weight: 500; color: var(--text-soft); }
.cat-bar-amount { font-family: var(--font-head); font-size: 0.85rem; font-weight: 600; color: var(--text); }
.cat-bar-track { height: 4px; background: var(--border); border-radius: 100px; overflow: hidden; }
.cat-bar-fill { height: 100%; border-radius: 100px; background: linear-gradient(90deg, var(--accent), #6366f1); transition: width 0.8s cubic-bezier(0.4,0,0.2,1); }

/* ── FILTERS ── */
.filters-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.filter-select {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.875rem;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.875rem;
  outline: none;
  cursor: pointer;
  transition: border-color var(--transition);
}

.filter-select:focus { border-color: var(--accent); }

/* ── PAGINATION ── */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  margin-top: 1.25rem;
}

.page-btn {
  width: 32px; height: 32px;
  display: grid;
  place-items: center;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-soft);
  font-size: 0.8125rem;
  cursor: pointer;
  transition: all var(--transition);
}

.page-btn:hover { border-color: var(--accent); color: var(--accent); }
.page-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.page-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ── EMPTY STATE ── */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-muted);
}
.empty-icon { font-size: 2.5rem; margin-bottom: 0.75rem; opacity: 0.5; }
.empty-text { font-size: 0.9rem; }

/* ── TOAST ── */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  color: var(--text);
  box-shadow: var(--shadow);
  animation: fadeUp 0.3s ease;
  max-width: 320px;
}

.toast.success { border-color: var(--accent2); }
.toast.error { border-color: var(--danger); }

/* ── LOADING ── */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  color: var(--text-muted);
  gap: 0.75rem;
}

.spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

/* ── ERROR ── */
.error-msg {
  background: rgba(239,68,68,0.08);
  border: 1px solid rgba(239,68,68,0.2);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  color: var(--danger);
  font-size: 0.875rem;
  margin-bottom: 1rem;
  display: none;
}
.error-msg.show { display: block; }

/* ── RULE CARDS ── */
.rules-grid { display: flex; flex-direction: column; gap: 0.75rem; }

.rule-card {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 1rem;
  transition: border-color var(--transition);
}

.rule-card:hover { border-color: var(--border-light); }
.rule-card.inactive { opacity: 0.45; }

.rule-keyword { font-weight: 600; color: var(--text); font-size: 0.95rem; }
.rule-merchant { font-size: 0.8rem; color: var(--text-muted); margin-top: 0.1rem; }
.rule-options { display: flex; gap: 0.4rem; flex-wrap: wrap; margin-top: 0.5rem; }

.rule-actions { display: flex; gap: 0.5rem; flex-shrink: 0; }

/* ── DIVIDER ── */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 1.5rem 0;
}

/* ── ANIMATIONS ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.fade-in { animation: fadeUp 0.4s ease; }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .app-layout { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .main-content { padding: 1.25rem; }
  .dashboard-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .auth-card { padding: 1.75rem; }
}

/* ── MOBILE FIXES ── */
@media (max-width: 768px) {
  .app-layout {
    grid-template-columns: 1fr;
  }
  .sidebar {
    display: none;
  }
  .main-content {
    padding: 1.25rem 1rem;
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }
  .stat-value {
    font-size: 1.3rem;
  }
  #charts-row {
    grid-template-columns: 1fr !important;
    gap: 1rem;
  }
  #charts-row .card canvas {
    height: 220px !important;
  }
  .dashboard-grid {
    grid-template-columns: 1fr !important;
    gap: 1rem;
  }
  .page-header {
    flex-direction: column !important;
    gap: 0.75rem;
  }
  #month-selector {
    width: 100%;
  }
  table {
    font-size: 0.8rem;
  }
  thead th, tbody td {
    padding: 0.5rem 0.6rem;
  }
  .filters-row {
    flex-direction: column;
    align-items: stretch;
  }
  .filter-select {
    width: 100%;
  }
  .rules-grid .rule-card {
    grid-template-columns: 1fr;
  }
  .rule-actions {
    justify-content: flex-end;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .auth-card {
    padding: 1.5rem 1.25rem;
  }
}

/* ── CHARTS CAROUSEL ── */
@media (max-width: 768px) {
  .charts-desktop { display: none !important; }
  .charts-mobile { display: block !important; }
}
@media (min-width: 769px) {
  .charts-desktop { display: grid !important; }
  .charts-mobile { display: none !important; }
}