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

:root {
  --primary: #4f46e5;
  --primary-dark: #3730a3;
  --success: #059669;
  --success-dark: #047857;
  --danger: #dc2626;
  --danger-dark: #b91c1c;
  --bg: #f8fafc;
  --surface: #ffffff;
  --border: #e2e8f0;
  --text: #1e293b;
  --text-muted: #64748b;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 4px 16px rgba(0,0,0,0.06);
  --radius: 14px;
  --radius-sm: 8px;
}

body {
  font-family: 'Inter', 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-size: 15px;
}

/* ---- Navbar ---- */
.navbar {
  background: linear-gradient(135deg, var(--primary) 0%, #7c3aed 100%);
  color: #fff;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 2px 12px rgba(79,70,229,0.3);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-brand {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.3px;
}

.nav-subtitle {
  font-size: 0.8rem;
  opacity: 0.8;
  font-weight: 400;
}

/* ---- Container ---- */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 20px 48px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* ---- Grids ---- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  align-items: stretch;
}

.grid-3 .card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

/* ---- Card ---- */
.card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 22px 24px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.card-icon { font-size: 1.2rem; }

.card-header h2 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.2px;
}

/* ---- Form Elements ---- */
.form-group { display: flex; flex-direction: column; gap: 4px; }

input[type="text"],
input[type="number"],
input[type="date"],
select {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: inherit;
  color: var(--text);
  background: #fff;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  appearance: none;
  -webkit-appearance: none;
}

input:focus, select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79,70,229,0.1);
}

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;
}

/* ---- Checkbox ---- */
.checkbox-group {
  display: flex;
  gap: 20px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  user-select: none;
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
  cursor: pointer;
}

/* ---- Rate Row ---- */
.rate-row {
  display: flex;
  align-items: flex-end;
  gap: 16px;
  flex-wrap: wrap;
}

.rate-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
  min-width: 130px;
}

.rate-item label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

/* ---- Buttons ---- */
.btn {
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s, box-shadow 0.2s;
  white-space: nowrap;
}

.btn:active { transform: scale(0.98); }

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(79,70,229,0.25);
}
.btn-primary:hover { background: var(--primary-dark); }

.btn-success {
  background: var(--success);
  color: #fff;
  box-shadow: 0 2px 8px rgba(5,150,105,0.25);
}
.btn-success:hover { background: var(--success-dark); }

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--primary);
}
.btn-outline:hover { background: rgba(79,70,229,0.06); }

.btn-danger {
  background: var(--danger);
  color: #fff;
  padding: 5px 12px;
  font-size: 0.78rem;
  border-radius: 6px;
}
.btn-danger:hover { background: var(--danger-dark); }

.full-width { width: 100%; }

/* ---- Table ---- */
.table-wrap { overflow-x: auto; border-radius: var(--radius-sm); border: 1px solid var(--border); }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

thead tr {
  background: #f1f5f9;
}

th {
  padding: 11px 14px;
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  white-space: nowrap;
}

td {
  padding: 11px 14px;
  border-top: 1px solid var(--border);
  color: var(--text);
  vertical-align: middle;
}

tbody tr:hover td { background: #f8fafc; }

tfoot tr td {
  background: #eef2ff;
  font-weight: 700;
  color: var(--primary-dark);
  border-top: 2px solid #c7d2fe;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #eef2ff;
  color: var(--primary);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 3px 10px;
  border-radius: 20px;
  min-width: 36px;
}

.empty-row td {
  text-align: center;
  color: var(--text-muted);
  padding: 24px;
  font-size: 0.85rem;
}

/* ---- Toast ---- */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: #1e293b;
  color: #fff;
  padding: 12px 24px;
  border-radius: 30px;
  font-size: 0.88rem;
  font-weight: 500;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
  z-index: 999;
  white-space: nowrap;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .navbar { padding: 0 16px; }
  .nav-subtitle { display: none; }
  .container { padding: 16px 12px 40px; gap: 14px; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .card { padding: 16px; }
  .rate-row { flex-direction: column; align-items: stretch; }
  .btn-outline { width: 100%; }
  th, td { padding: 9px 10px; }
}

/* ---- Balance Colors ---- */
.bal-neg { color: #dc2626; font-weight: 600; }
.bal-pos { color: #059669; font-weight: 600; }

/* ---- Rate Info ---- */
.rate-info {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  padding: 10px 14px;
  background: #eef2ff;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  color: var(--text-muted);
}

.rate-info strong {
  color: var(--primary);
}

/* ---- Sync Status ---- */
.sync-status {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
  white-space: nowrap;
}

.sync-loading {
  background: rgba(255,255,255,0.2);
  color: #fff;
  animation: pulse 1.2s infinite;
}

.sync-ok {
  background: rgba(255,255,255,0.25);
  color: #d1fae5;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}