/* ── Reset & base ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --sidebar-w:   240px;
  --sidebar-bg:  #0f172a;
  --sidebar-txt: #94a3b8;
  --sidebar-act: #2563eb;
  --bg:          #f1f5f9;
  --surface:     #ffffff;
  --border:      #e2e8f0;
  --text:        #1e293b;
  --muted:       #64748b;
  --primary:     #2563eb;
  --primary-h:   #1d4ed8;
  --success:     #16a34a;
  --danger:      #dc2626;
  --warning:     #d97706;
  --radius:      10px;
  --shadow:      0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md:   0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
  --transition:  .18s ease;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }

/* ── Layout ───────────────────────────────────────────────────── */
.layout {
  display: flex;
  min-height: 100vh;
}

/* ── Sidebar ──────────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 200;
  transition: transform var(--transition);
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 24px 20px 20px;
  color: #f8fafc;
  font-weight: 700;
  font-size: 18px;
  border-bottom: 1px solid #1e293b;
}

.logo-icon {
  width: 34px; height: 34px;
  background: var(--primary);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 800; color: #fff;
}

.sidebar-nav {
  padding: 16px 12px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--sidebar-txt);
  font-size: 14px;
  font-weight: 500;
  transition: background var(--transition), color var(--transition);
}

.nav-link svg { width: 18px; height: 18px; }

.nav-link:hover {
  background: rgba(255,255,255,.06);
  color: #f1f5f9;
  text-decoration: none;
}

.nav-link.active {
  background: rgba(37,99,235,.2);
  color: #93c5fd;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid #1e293b;
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  min-width: 0;
}

.user-info span {
  font-size: 13px;
  color: var(--sidebar-txt);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-avatar {
  width: 32px; height: 32px;
  background: var(--primary);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}

.logout-link {
  color: var(--sidebar-txt);
  display: flex;
  align-items: center;
  padding: 6px;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
}

.logout-link:hover {
  color: #f87171;
  background: rgba(248,113,113,.1);
  text-decoration: none;
}

/* ── Mobile header ────────────────────────────────────────────── */
.mobile-header {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 56px;
  background: var(--sidebar-bg);
  align-items: center;
  padding: 0 16px;
  gap: 12px;
  z-index: 190;
}

.mobile-logo {
  color: #f8fafc;
  font-weight: 700;
  font-size: 17px;
}

.hamburger {
  background: none; border: none; cursor: pointer;
  display: flex; flex-direction: column; gap: 5px; padding: 4px;
}

.hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: #f8fafc;
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.sidebar-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,.5);
  z-index: 199;
}

/* ── Main content ─────────────────────────────────────────────── */
.main {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.page-header {
  padding: 28px 32px 0;
}

.page-header h1 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
}

.page-content {
  padding: 20px 32px 40px;
  flex: 1;
}

/* ── Cards ────────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.card-header {
  padding: 18px 20px 14px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.card-header h2 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

.card-body {
  padding: 20px;
}

/* ── Stat cards ───────────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
}

.stat-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--muted);
  margin-bottom: 6px;
}

.stat-value {
  font-size: 26px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
}

.stat-value.income { color: var(--success); }
.stat-value.expense { color: var(--danger); }

.stat-sub {
  font-size: 12px;
  color: var(--muted);
  margin-top: 4px;
}

/* ── Dashboard grid ───────────────────────────────────────────── */
.dash-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

@media (max-width: 900px) {
  .dash-grid { grid-template-columns: 1fr; }
}

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

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

th {
  text-align: left;
  padding: 10px 14px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

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

tbody tr:hover { background: #f8fafc; }

.amount-income  { color: var(--success); font-weight: 600; }
.amount-expense { color: var(--danger);  font-weight: 600; }

.no-data {
  text-align: center;
  padding: 40px 20px;
  color: var(--muted);
  font-size: 14px;
}

/* ── Badge / pill ─────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}

.dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.badge-income  { background: #dcfce7; color: #15803d; }
.badge-expense { background: #fee2e2; color: #b91c1c; }

/* ── Buttons ──────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
  white-space: nowrap;
  line-height: 1;
}

.btn svg { width: 16px; height: 16px; }

.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--primary-h);
  border-color: var(--primary-h);
  text-decoration: none;
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--border);
}
.btn-outline:hover {
  background: #f1f5f9;
  text-decoration: none;
}

.btn-danger {
  background: transparent;
  color: var(--danger);
  border-color: var(--border);
}
.btn-danger:hover {
  background: #fee2e2;
  border-color: #fca5a5;
  text-decoration: none;
}

.btn-sm {
  padding: 5px 10px;
  font-size: 12px;
  border-radius: 6px;
}

/* ── Forms ────────────────────────────────────────────────────── */
.form-group {
  margin-bottom: 16px;
}

label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 5px;
}

input[type=text],
input[type=email],
input[type=password],
input[type=number],
input[type=date],
select,
textarea {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  color: var(--text);
  background: var(--surface);
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}

select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 34px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.form-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 20px;
}

.error-msg {
  background: #fef2f2;
  border: 1px solid #fca5a5;
  color: #b91c1c;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13px;
  margin-bottom: 16px;
}

.success-msg {
  background: #f0fdf4;
  border: 1px solid #86efac;
  color: #15803d;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13px;
  margin-bottom: 16px;
}

/* ── Modal ────────────────────────────────────────────────────── */
.modal-backdrop {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,.45);
  z-index: 500;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-backdrop.open {
  display: flex;
}

.modal {
  background: var(--surface);
  border-radius: 14px;
  box-shadow: 0 20px 40px rgba(0,0,0,.2);
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  animation: slideUp .2s ease;
}

@keyframes slideUp {
  from { transform: translateY(16px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--border);
}

.modal-header h2 {
  font-size: 17px;
  font-weight: 700;
}

.modal-close {
  background: none; border: none;
  cursor: pointer;
  color: var(--muted);
  display: flex;
  align-items: center;
  padding: 4px;
  border-radius: 6px;
  transition: background var(--transition), color var(--transition);
}

.modal-close:hover { background: #f1f5f9; color: var(--text); }

.modal-body {
  padding: 20px 24px 24px;
}

/* ── Filter bar ───────────────────────────────────────────────── */
.filter-bar {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.filter-bar input,
.filter-bar select {
  width: auto;
  min-width: 140px;
}

/* ── Pagination ───────────────────────────────────────────────── */
.pagination {
  display: flex;
  gap: 6px;
  align-items: center;
  justify-content: center;
  padding: 16px 0 4px;
}

.page-btn {
  min-width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border);
  border-radius: 7px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  background: var(--surface);
  cursor: pointer;
  padding: 0 8px;
  transition: background var(--transition), border-color var(--transition);
  text-decoration: none;
}

.page-btn:hover { background: #f1f5f9; text-decoration: none; }
.page-btn.current {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.page-btn.disabled {
  opacity: .4;
  pointer-events: none;
}

/* ── Account cards ────────────────────────────────────────────── */
.accounts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.account-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.account-card-type {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
}

.account-card-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
}

.account-card-name:hover {
  color: var(--primary);
  text-decoration: none;
}

.account-card-balance {
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
}

.account-card-balance.negative { color: var(--danger); }

.account-card-actions {
  display: flex;
  gap: 8px;
  margin-top: 4px;
}

/* ── Auth pages ───────────────────────────────────────────────── */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  padding: 20px;
}

.auth-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow-md);
  padding: 36px 40px;
  width: 100%;
  max-width: 420px;
}

.auth-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
}

.auth-logo .logo-icon {
  width: 40px; height: 40px;
  font-size: 20px;
}

.auth-logo span.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
}

.auth-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 4px;
}

.auth-sub {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 24px;
}

.auth-footer {
  margin-top: 20px;
  text-align: center;
  font-size: 13px;
  color: var(--muted);
}

/* ── Type toggle (income/expense) ─────────────────────────────── */
.type-toggle {
  display: flex;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.type-toggle input[type=radio] { display: none; }

.type-toggle label {
  flex: 1;
  padding: 8px 12px;
  text-align: center;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  color: var(--muted);
  background: var(--surface);
  margin: 0;
  transition: background var(--transition), color var(--transition);
  border-right: 1px solid var(--border);
}

.type-toggle label:last-of-type { border-right: none; }

.type-toggle input[value=income]:checked  + label { background: #dcfce7; color: #15803d; }
.type-toggle input[value=expense]:checked + label { background: #fee2e2; color: #b91c1c; }

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-overlay.open { display: block; }

  .mobile-header { display: flex; }

  .main {
    margin-left: 0;
    padding-top: 56px;
  }

  .page-header { padding: 20px 16px 0; }
  .page-content { padding: 16px 16px 32px; }

  .form-row { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .auth-card { padding: 28px 24px; }
}

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