:root {
  --bg: #0b1220;
  --panel: #111a2b;
  --panel-2: #16233a;
  --text: #dbe7ff;
  --muted: #91a4c8;
  --accent: #2f81ff;
  --accent-hover: #1f6de2;
  --danger: #ff5d73;
  --border: #24324d;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, Segoe UI, Arial, sans-serif;
  background: radial-gradient(circle at top, #101a2f, var(--bg));
  color: var(--text);
}

.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(9, 14, 24, 0.85);
  backdrop-filter: blur(6px);
  position: sticky;
  top: 0;
}

.nav {
  max-width: 1050px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  font-weight: 700;
  color: var(--accent);
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 16px;
  padding: 8px 10px;
  border-radius: 8px;
}

.nav-links a.active,
.nav-links a:hover {
  color: var(--text);
  background: var(--panel-2);
}

.container {
  max-width: 1050px;
  margin: 22px auto;
  padding: 0 20px 30px;
  display: grid;
  gap: 18px;
}

.card {
  background: linear-gradient(180deg, var(--panel), #0e1728);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
}

h1, h2 {
  margin: 0 0 14px;
}

.grid-form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 10px;
}

input, select, button {
  background: #0f1a2e;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 10px 12px;
}

button {
  background: var(--accent);
  border: none;
  font-weight: 600;
  cursor: pointer;
  transition: 0.2s;
}

button:hover {
  background: var(--accent-hover);
}

.toolbar {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
}

.toolbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
}

.total-box, .grand-total {
  margin: 12px 0;
  font-size: 1.1rem;
  color: var(--muted);
}

#totalAmount, #grandTotal {
  color: var(--accent);
  font-weight: 700;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 700px;
}

th, td {
  text-align: left;
  padding: 10px;
  border-bottom: 1px solid var(--border);
}

th {
  color: var(--muted);
  font-weight: 600;
}

.pill {
  background: #1b2b49;
  color: #9dc3ff;
  border: 1px solid #294476;
  padding: 3px 8px;
  border-radius: 99px;
  font-size: 12px;
}

.actions {
  display: flex;
  gap: 8px;
}

.btn-edit {
  background: #245fbe;
}

.btn-delete {
  background: var(--danger);
}

.btn-delete:hover {
  background: #e64b61;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 12px;
  margin-top: 10px;
}

.summary-card {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  text-align: center;
}

.summary-card h3 {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
}

.summary-card p {
  margin: 8px 0 0;
  font-size: 1.3rem;
  color: var(--accent);
  font-weight: 700;
}