:root {
  --navy: #0c1f3d;
  --navy-deep: #071426;
  --navy-soft: #16305c;
  --gold: #d79a3c;
  --gold-soft: #f0c987;
  --teal: #1e8a7a;
  --ink: #16213a;
  --muted: #6b7690;
  --paper: #f4f6fb;
  --line: #e3e7f0;
  --radius: 14px;
  --font-display: 'Fraunces', 'Georgia', serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, sans-serif;
  --band-grad: linear-gradient(120deg, #071426, #0c1f3d 55%, #16305c);
  --accent-grad: linear-gradient(135deg, #d79a3c, #c9822a);
  --note-bg: #fff7e9;
  --note-border: #f0d9a8;
  --note-text: #8a5c10;
}

* { box-sizing: border-box; }

body {
  font-family: var(--font-body);
  background:
    radial-gradient(1100px 500px at 90% -10%, rgba(215, 154, 60, 0.10), transparent 60%),
    radial-gradient(900px 600px at -10% 0%, rgba(12, 31, 61, 0.08), transparent 55%),
    var(--paper);
  color: var(--ink);
  min-height: 100vh;
}

/* ---------- Topbar ---------- */
.topbar {
  background: linear-gradient(120deg, var(--navy-deep), var(--navy) 60%, var(--navy-soft));
  padding: 14px 0;
  box-shadow: 0 6px 24px rgba(7, 20, 38, 0.25);
  position: sticky;
  top: 0;
  z-index: 40;
}
.brand { display: flex; align-items: baseline; gap: 10px; text-decoration: none; }
.brand-mark {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.7rem;
  color: var(--gold-soft);
  letter-spacing: 0.5px;
}
.brand-text {
  color: #eef2fb;
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.2px;
}
.topnav-link {
  color: #cfd9ef;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.92rem;
  padding: 8px 12px;
  border-radius: 10px;
  transition: 0.15s;
}
.topnav-link:hover { background: rgba(255,255,255,0.08); color: #fff; }
.btn-accent {
  background: linear-gradient(135deg, var(--gold), #c9822a);
  border: none;
  color: #201202;
  font-weight: 600;
  border-radius: 10px;
  box-shadow: 0 4px 14px rgba(215, 154, 60, 0.35);
}
.btn-accent:hover { color: #201202; filter: brightness(1.05); }

.page-wrap { padding: 32px 0 60px; }

/* ---------- Page header ---------- */
.page-heading { margin-bottom: 26px; }
.page-heading .eyebrow {
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.72rem;
  font-weight: 700;
}
.page-heading h1 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--navy-deep);
  margin: 4px 0 0;
}
.page-heading p { color: var(--muted); margin: 6px 0 0; }

/* ---------- Cards / panels ---------- */
.panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 10px 30px rgba(15, 30, 60, 0.05);
}
.panel-header {
  padding: 16px 22px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.panel-header h2 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy-deep);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}
.panel-header h2 i { color: var(--gold); }
.panel-body { padding: 22px; }

.section-title {
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--navy);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.section-title i { color: var(--gold); }

/* ---------- Table list ---------- */
.table-proformas thead th {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--muted);
  border-bottom: 2px solid var(--line);
  font-weight: 700;
  padding: 14px 16px;
}
.table-proformas tbody td {
  padding: 14px 16px;
  vertical-align: middle;
  border-bottom: 1px solid var(--line);
}
.table-proformas tbody tr:hover { background: #f8faff; }
.badge-no {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--navy-deep);
}
.stat-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: 0 10px 30px rgba(15, 30, 60, 0.05);
}
.stat-card .value {
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 600;
  color: var(--navy-deep);
}
.stat-card .label { color: var(--muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.5px; }
.stat-card i { color: var(--gold); font-size: 1.4rem; }

/* ---------- Form ---------- */
.form-label { font-weight: 600; font-size: 0.85rem; color: var(--navy); }
.form-control, .form-select {
  border-radius: 9px;
  border: 1px solid var(--line);
  padding: 9px 12px;
  font-size: 0.92rem;
}
.form-control:focus, .form-select:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(215, 154, 60, 0.18);
}

.items-table th {
  font-size: 0.72rem;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 700;
  letter-spacing: 0.4px;
  padding: 8px 6px;
}
.items-table td { padding: 6px; vertical-align: middle; }
.items-table input { min-width: 90px; }
.btn-remove-row { color: #c23b3b; border: none; background: none; font-size: 1.1rem; }
.btn-add-row {
  border: 1.5px dashed var(--line);
  border-radius: 10px;
  color: var(--navy);
  font-weight: 600;
  background: #fbfcff;
}
.btn-add-row:hover { border-color: var(--gold); color: var(--navy-deep); }

.totals-box {
  background: var(--navy-deep);
  border-radius: var(--radius);
  color: #eef2fb;
  padding: 20px 22px;
}
.totals-box .row-line { display: flex; justify-content: space-between; padding: 6px 0; font-size: 0.9rem; border-bottom: 1px solid rgba(255,255,255,0.08); }
.totals-box .row-line:last-child { border-bottom: none; }
.totals-box .row-line .grand {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--gold-soft);
  font-weight: 600;
}

/* ---------- Invoice document ---------- */
.invoice-shell { padding-bottom: 10px; }
.invoice-toolbar {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-bottom: 18px;
}
.invoice-doc {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 24px 60px rgba(15, 30, 60, 0.12);
  overflow: hidden;
  max-width: 980px;
  margin: 0 auto;
}
.invoice-band {
  background: var(--band-grad, linear-gradient(120deg, var(--navy-deep), var(--navy) 55%, var(--navy-soft)));
  color: #fff;
  padding: 34px 40px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
  position: relative;
}
.invoice-band::after {
  content: "";
  position: absolute;
  right: 0; top: 0; bottom: 0;
  width: 6px;
  background: linear-gradient(180deg, var(--gold), var(--gold-soft));
}
.invoice-band .co-name {
  font-family: var(--font-display);
  font-size: 1.55rem;
  font-weight: 600;
  letter-spacing: 0.3px;
}
.invoice-band .co-sub { color: #cfd9ef; font-size: 0.8rem; margin-top: 2px; }
.invoice-band .co-meta { color: #b9c6e6; font-size: 0.8rem; margin-top: 10px; line-height: 1.6; }
.invoice-band .co-meta a { color: #f0c987; text-decoration: none; }
.invoice-band .doc-tag {
  text-align: right;
  flex-shrink: 0;
}
.invoice-band .doc-tag .tag {
  display: inline-block;
  border: 1.5px solid var(--gold-soft);
  color: var(--gold-soft);
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
}
.invoice-band .doc-tag .num { margin-top: 12px; font-size: 0.85rem; color: #dbe4f7; }
.invoice-band .doc-tag .num b { color: #fff; font-family: var(--font-display); font-size: 1.05rem; }

.invoice-body { padding: 34px 40px 10px; }

.party-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 28px;
}
.party-box .label {
  text-transform: uppercase;
  font-size: 0.68rem;
  letter-spacing: 1.2px;
  color: var(--gold);
  font-weight: 700;
  margin-bottom: 6px;
}
.party-box .name { font-weight: 700; color: var(--navy-deep); font-size: 1.02rem; }
.party-box .meta { color: var(--muted); font-size: 0.86rem; line-height: 1.55; margin-top: 4px; }

.doc-table { width: 100%; border-collapse: collapse; margin-bottom: 26px; }
.doc-table thead th {
  background: var(--navy-deep);
  color: #f2f5ff;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  padding: 11px 12px;
  text-align: left;
}
.doc-table thead th:last-child, .doc-table tbody td:last-child { text-align: right; }
.doc-table tbody td {
  padding: 11px 12px;
  border-bottom: 1px solid var(--line);
  font-size: 0.9rem;
  color: var(--ink);
  vertical-align: middle;
  word-break: break-word;
}
.doc-table .col-num,
.doc-table thead th:nth-child(4),
.doc-table thead th:nth-child(5),
.doc-table thead th:nth-child(6),
.doc-table tbody td:nth-child(4),
.doc-table tbody td:nth-child(5),
.doc-table tbody td:nth-child(6) {
  white-space: nowrap;
  text-align: right;
}
.doc-table thead th:nth-child(1),
.doc-table tbody td:nth-child(1) {
  white-space: nowrap;
}
.doc-table tbody tr:nth-child(even) { background: #fafbfe; }
.doc-table tfoot td {
  padding: 12px;
  font-weight: 700;
  border-top: 2px solid var(--navy-deep);
  color: var(--navy-deep);
}

.info-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 22px;
  margin-bottom: 24px;
}
.info-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 18px;
}
.info-card .label {
  text-transform: uppercase;
  font-size: 0.68rem;
  letter-spacing: 1px;
  color: var(--gold);
  font-weight: 700;
  margin-bottom: 10px;
}
.info-card .row-line { display: flex; justify-content: space-between; font-size: 0.87rem; padding: 5px 0; border-bottom: 1px dashed var(--line); }
.info-card .row-line:last-child { border-bottom: none; }
.info-card .row-line span:first-child { color: var(--muted); }
.info-card .row-line span:last-child { font-weight: 600; color: var(--navy-deep); }

.summary-card {
  background: var(--navy-deep);
  color: #eef2fb;
  border-radius: 12px;
  padding: 18px 20px;
}
.summary-card .row-line { display: flex; justify-content: space-between; font-size: 0.87rem; padding: 6px 0; border-bottom: 1px solid rgba(255,255,255,0.08); }
.summary-card .row-line:last-child { border-bottom: none; }
.summary-card .row-line span:first-child { color: #b9c6e6; }
.summary-card .grand-value { font-family: var(--font-display); font-size: 1.6rem; color: var(--gold-soft); font-weight: 600; }

.note-strip {
  background: var(--note-bg, #fff7e9);
  border: 1px solid var(--note-border, #f0d9a8);
  color: var(--note-text, #8a5c10);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 12px 16px;
  border-radius: 10px;
  margin-bottom: 24px;
}

.bank-strip {
  border-top: 1px solid var(--line);
  padding-top: 20px;
  margin-top: 6px;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 22px;
  align-items: start;
}
.bank-strip .label { text-transform: uppercase; font-size: 0.68rem; letter-spacing: 1px; color: var(--gold); font-weight: 700; margin-bottom: 8px; }
.bank-strip .row-line { font-size: 0.86rem; padding: 3px 0; color: var(--ink); }
.bank-strip .row-line b { color: var(--navy-deep); }
.stamp-area { text-align: right; }
.stamp-area .signature-line {
  font-family: var(--font-display);
  font-style: italic;
  color: var(--navy-soft);
  font-size: 1.3rem;
  border-bottom: 2px solid var(--line);
  padding-bottom: 6px;
  margin-bottom: 8px;
}
.stamp-area .stamp-image {
  display: inline-block;
  max-width: 180px;
  max-height: 140px;
  width: auto;
  height: auto;
  object-fit: contain;
  margin-bottom: 6px;
}
.stamp-area .stamp-name { font-weight: 700; font-size: 0.82rem; color: var(--navy-deep); line-height: 1.5; }

.stamp-preview-box {
  border: 1px dashed var(--line);
  border-radius: 12px;
  background: #fafbfe;
  min-height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.stamp-preview-box img {
  max-width: 100%;
  max-height: 140px;
  object-fit: contain;
}
.stamp-preview-empty {
  color: var(--muted);
  text-align: center;
  font-size: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
}
.stamp-preview-empty i { font-size: 1.8rem; color: var(--gold); }

.invoice-footer-bar {
  background: var(--paper);
  border-top: 1px solid var(--line);
  padding: 14px 40px;
  text-align: center;
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.4px;
}

.alert-flash { border-radius: 12px; border: none; }

/* Print */
@media print {
  .topbar, .invoice-toolbar, .site-footer { display: none !important; }
  body { background: #fff; }
  .invoice-doc { box-shadow: none; max-width: 100%; }
  .page-wrap { padding: 0; }
}

@media (max-width: 767px) {
  .party-grid, .info-grid, .bank-strip { grid-template-columns: 1fr; }
  .invoice-band, .invoice-body { padding: 24px 20px; }
  .invoice-band { flex-direction: column; }
  .invoice-band .doc-tag { text-align: left; }
}

.empty-state { text-align: center; padding: 60px 20px; color: var(--muted); }
.empty-state i { font-size: 2.6rem; color: var(--gold); margin-bottom: 14px; display: block; }