:root {
  --bg: #0f172a;
  --surface: #1e293b;
  --surface-alt: #263449;
  --border: #334155;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --accent: #38bdf8;
  --danger: #f87171;
  --radius: 10px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--bg);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  display: flex;
  justify-content: center;
  padding: 2rem 1rem;
}

.page {
  width: 100%;
  max-width: 800px;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.toolbar h1 {
  font-size: 1.4rem;
  margin: 0;
}

.toolbar-actions {
  display: flex;
  gap: 0.75rem;
}

button {
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 8px;
  border: 1px solid var(--border);
  padding: 0.6rem 1.1rem;
  cursor: pointer;
  background-color: var(--surface);
  color: var(--text-primary);
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

button:hover {
  border-color: var(--accent);
}

#print-btn {
  background-color: var(--accent);
  color: #0f172a;
  border-color: var(--accent);
}

#print-btn:hover {
  opacity: 0.9;
}

.delete-row-btn {
  background-color: transparent;
  border-color: var(--danger);
  color: var(--danger);
  padding: 0.35rem 0.6rem;
  font-size: 0.8rem;
}

.saved-panel {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.saved-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.saved-panel-header h2 {
  margin: 0;
  font-size: 1.05rem;
}

.icon-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 1.3rem;
  line-height: 1;
  cursor: pointer;
  padding: 0.1rem 0.4rem;
}

.icon-btn:hover {
  color: var(--text-primary);
}

.saved-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 280px;
  overflow-y: auto;
}

.saved-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background-color: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.6rem 0.9rem;
}

.saved-item-info {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
}

.saved-item-info strong {
  font-size: 0.9rem;
}

.saved-item-info span {
  color: var(--text-secondary);
  font-size: 0.78rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.saved-item-total {
  font-weight: 700;
  color: var(--accent);
  white-space: nowrap;
}

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

.saved-item-actions button {
  padding: 0.35rem 0.6rem;
  font-size: 0.78rem;
}

.load-btn {
  border-color: var(--accent);
  color: var(--accent);
  background-color: transparent;
}

.empty-state {
  color: var(--text-secondary);
  font-size: 0.85rem;
  text-align: center;
  padding: 1rem 0;
  margin: 0;
}

.invoice {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.logo-block {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.company-logo {
  max-height: 70px;
  max-width: 220px;
  object-fit: contain;
  border-radius: 6px;
}

.logo-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-upload-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.5rem 0.9rem;
  border-radius: 8px;
  border: 1px dashed var(--border);
  color: var(--text-secondary);
  transition: border-color 0.15s ease, color 0.15s ease;
}

.logo-upload-btn:hover {
  border-color: var(--accent);
  color: var(--text-primary);
}

.logo-remove-btn {
  background-color: transparent;
  border: 1px solid var(--danger);
  color: var(--danger);
  padding: 0.4rem 0.7rem;
  font-size: 0.8rem;
  border-radius: 6px;
}

.invoice-parties {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.party {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

label {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

input[type="text"],
input[type="date"],
input[type="number"] {
  background-color: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.55rem 0.7rem;
  font-size: 0.95rem;
  color: var(--text-primary);
  outline: none;
  width: 100%;
  transition: border-color 0.15s ease;
}

input:focus {
  border-color: var(--accent);
}

.items-table {
  width: 100%;
  border-collapse: collapse;
}

.items-table th {
  text-align: left;
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 600;
  padding: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.items-table td {
  padding: 0.5rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.col-qty,
.col-rate,
.col-amount {
  width: 110px;
}

.col-action {
  width: 50px;
}

.items-table input[type="text"],
.items-table input[type="number"] {
  background-color: var(--surface-alt);
}

.amount-cell {
  font-weight: 600;
  white-space: nowrap;
}

.invoice-summary {
  align-self: flex-end;
  width: 100%;
  max-width: 280px;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.summary-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.summary-row label {
  flex: 1;
}

.summary-row input[type="number"] {
  width: 90px;
  text-align: right;
}

.total-row {
  border-top: 1px solid var(--border);
  padding-top: 0.75rem;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent);
}

@media (max-width: 640px) {
  .invoice-parties {
    grid-template-columns: 1fr;
  }

  .invoice-summary {
    max-width: none;
  }
}

@media print {
  body {
    background-color: #ffffff;
    color: #000000;
    padding: 0;
    display: block;
  }

  .no-print {
    display: none !important;
  }

  .page {
    max-width: none;
    gap: 0;
  }

  .invoice {
    background-color: #ffffff;
    border: none;
    border-radius: 0;
    padding: 0;
    color: #000000;
  }

  label {
    color: #333333;
  }

  input[type="text"],
  input[type="date"],
  input[type="number"] {
    background-color: transparent;
    border: none;
    color: #000000;
    padding: 0.1rem 0;
  }

  .items-table th {
    color: #000000;
    border-bottom: 1px solid #000000;
  }

  .items-table td {
    border-bottom: 1px solid #cccccc;
  }

  .items-table input[type="text"],
  .items-table input[type="number"] {
    background-color: transparent;
  }

  .total-row {
    color: #000000;
    border-top: 1px solid #000000;
  }

  .logo-block {
    margin-bottom: 0.5rem;
  }
}