:root {
  --navy: #1F3A5F;
  --navy-deep: #152a45;
  --amber: #D97706;
  --cream: #FBFAF5;
  --ink: #1a2332;
  --muted: #5c6b7a;
  --line: #d9dee5;
  --ok: #0f7a4a;
  --err: #b42318;
  --card: #ffffff;
  --sidebar: #152a45;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Source Sans 3", system-ui, sans-serif;
  color: var(--ink);
  background: var(--cream);
  line-height: 1.5;
}

h1, h2, .brand-mark {
  font-family: "Libre Baskerville", Georgia, serif;
  font-weight: 700;
}

a { color: var(--navy); }
a:hover { color: var(--amber); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.55rem 1rem;
  border: 1px solid transparent;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  background: var(--navy);
  color: #fff;
}
.btn:hover { color: #fff; filter: brightness(1.05); }
.btn-amber { background: var(--amber); color: #fff; }
.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--navy);
}
.btn-ghost:hover { color: var(--amber); border-color: var(--amber); }
.btn-danger { background: var(--err); }
.btn-sm { padding: 0.35rem 0.7rem; font-size: 0.9rem; }

.auth-body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem;
  background:
    radial-gradient(ellipse at top right, rgba(217,119,6,0.12), transparent 45%),
    linear-gradient(160deg, #eef2f6, var(--cream));
}
.auth-card {
  width: min(420px, 100%);
  background: var(--card);
  border: 1px solid var(--line);
  padding: 2rem;
}
.auth-card h1 { margin: 0.25rem 0 0.75rem; font-size: 1.6rem; color: var(--navy); }
.brand-mark { margin: 0; color: var(--amber); letter-spacing: 0.02em; }
.lede, .hint { color: var(--muted); font-size: 0.95rem; }
.demo-creds {
  margin: 0.85rem 0 1rem;
  padding: 0.85rem 1rem;
  border: 1px dashed var(--line);
  background: #f7f9fc;
}
.demo-creds-title {
  margin: 0 0 0.5rem;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--navy);
}
.demo-creds-list {
  margin: 0 0 0.65rem;
  display: grid;
  gap: 0.35rem;
}
.demo-creds-list > div {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 0.35rem;
  align-items: baseline;
  font-size: 0.9rem;
}
.demo-creds-list dt {
  margin: 0;
  color: var(--muted);
  font-weight: 600;
}
.demo-creds-list dd {
  margin: 0;
}
.demo-creds code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.86rem;
  color: var(--ink);
  word-break: break-all;
}
.auth-card label { display: block; margin: 0.85rem 0 0.35rem; font-weight: 600; font-size: 0.92rem; }
.auth-card input, .auth-card select, .auth-card textarea,
.panel input, .panel select, .panel textarea,
table input, table select {
  width: 100%;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--line);
  background: #fff;
  font: inherit;
}
.auth-card input:focus, .panel input:focus, .panel select:focus, .panel textarea:focus {
  outline: 2px solid rgba(31,58,95,0.25);
  border-color: var(--navy);
}

.app-shell { display: grid; grid-template-columns: 260px 1fr; min-height: 100vh; }
.sidebar {
  background: var(--sidebar);
  color: #d7dee8;
  display: flex;
  flex-direction: column;
  padding: 1.25rem 0;
}
.sidebar-brand {
  padding: 0 1.25rem 1.25rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.sidebar-logo {
  display: block;
  max-width: 160px;
  max-height: 48px;
  width: auto;
  height: auto;
  margin-bottom: 0.65rem;
  object-fit: contain;
}
.auth-logo {
  display: block;
  max-width: 200px;
  max-height: 64px;
  width: auto;
  height: auto;
  margin: 0 auto 0.35rem;
  object-fit: contain;
}
.sidebar-brand strong {
  display: block;
  font-family: "Libre Baskerville", Georgia, serif;
  color: #fff;
  font-size: 1.15rem;
}
.sidebar-brand span { font-size: 0.85rem; color: #9aabbd; }
.sidebar nav {
  display: flex;
  flex-direction: column;
  padding: 0.75rem 0.75rem 1rem;
  gap: 0.15rem;
  flex: 1;
  overflow-y: auto;
}
.sidebar nav .nav-group {
  margin: 0.85rem 0.75rem 0.25rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #7a8ea3;
}
.sidebar nav .nav-group:first-child { margin-top: 0.25rem; }
.sidebar nav a {
  color: #c5d0dc;
  text-decoration: none;
  padding: 0.45rem 0.75rem;
  border-left: 3px solid transparent;
  font-size: 0.92rem;
}
.sidebar nav a:hover { color: #fff; background: rgba(255,255,255,0.04); }
.sidebar nav a.is-active {
  color: #fff;
  background: rgba(217,119,6,0.15);
  border-left-color: var(--amber);
}
.sidebar-foot {
  padding: 1rem 1.25rem;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  font-size: 0.88rem;
}
.sidebar-user {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
}
.sidebar-user strong {
  color: #fff;
  font-size: 0.95rem;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.sidebar-user span {
  color: #9aabbd;
  font-size: 0.8rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.sidebar-role {
  display: inline-block;
  margin-top: 0.2rem;
  padding: 0.1rem 0.45rem;
  border-radius: 3px;
  background: rgba(217,119,6,0.2);
  color: #f0c98a;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  width: fit-content;
  white-space: nowrap;
}
.sidebar-foot a {
  color: #9aabbd;
  text-decoration: none;
  font-weight: 600;
}
.sidebar-foot a:hover { color: #fff; }

.main { padding: 1.5rem 1.75rem 2.5rem; }
.main-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}
.main-top-left {
  min-width: 0;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}
.main-top-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.main-top h1 { margin: 0; color: var(--navy); font-size: 1.75rem; }
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0.45rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
  flex-shrink: 0;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--navy);
  border-radius: 1px;
}
.sidebar-overlay { display: none; }
.notif-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  text-decoration: none;
  color: var(--navy);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.35rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}
.notif-badge:hover { border-color: var(--navy); }
.notif-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.25rem;
  height: 1.25rem;
  padding: 0 0.3rem;
  border-radius: 999px;
  background: var(--amber);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
}
tr.notif-unread td { background: #f8fafc; }
.signed-in {
  margin: 0.35rem 0 0;
  font-size: 0.9rem;
  color: var(--muted);
}
.signed-in strong { color: var(--navy); font-weight: 600; }
.signed-in-email { color: var(--muted); }
.main-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }

.flash {
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  border: 1px solid var(--line);
  background: #fff;
}
.flash.ok { border-color: #b7e0c8; background: #edf8f1; color: var(--ok); }
.flash.err { border-color: #f0c2bd; background: #fdf2f0; color: var(--err); }

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.stat {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 1rem 1.15rem;
}
.stat .label { color: var(--muted); font-size: 0.88rem; margin: 0 0 0.35rem; }
.stat .value {
  margin: 0;
  font-family: "Libre Baskerville", Georgia, serif;
  font-size: 1.35rem;
  color: var(--navy);
}
.stat .value.positive { color: var(--ok); }
.stat .value.negative { color: var(--err); }

.app-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
  margin-top: 0.75rem;
}
.app-card {
  border: 1px solid var(--line);
  background: var(--bg, #faf9f7);
  padding: 1rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  min-height: 100%;
}
.app-card.is-current {
  border-color: var(--amber, #d97706);
  box-shadow: inset 0 0 0 1px rgba(217, 119, 6, 0.25);
}
.app-card header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}
.app-card-title {
  margin: 0;
  font-size: 0.92rem;
  color: var(--navy);
  font-weight: 600;
}
.app-card .hint { margin: 0; flex: 1; }
.app-card .btn { align-self: flex-start; margin-top: 0.35rem; }

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}
.panel h2 {
  margin: 0 0 1rem;
  font-size: 1.15rem;
  color: var(--navy);
}
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem 1rem;
}
.form-grid .full { grid-column: 1 / -1; }
.form-grid label { display: block; font-weight: 600; font-size: 0.9rem; margin-bottom: 0.3rem; }

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}
table.data th, table.data td {
  text-align: left;
  padding: 0.65rem 0.55rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
table.data th {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  font-weight: 600;
}
table.data td.num, table.data th.num { text-align: right; font-variant-numeric: tabular-nums; }
table.data tr:hover td { background: rgba(31,58,95,0.03); }
.badge {
  display: inline-block;
  padding: 0.15rem 0.45rem;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  background: #eef2f6;
  color: var(--navy);
}
.badge.paid, .badge.posted { background: #edf8f1; color: var(--ok); }
.badge.draft { background: #f5f1e8; color: #8a6a2f; }
.badge.overdue, .badge.void { background: #fdf2f0; color: var(--err); }
.badge.sent, .badge.partial, .badge.pending, .badge.confirmed { background: #eef4fb; color: #255a9b; }
.badge.approved, .badge.fulfilled, .badge.received { background: #edf8f1; color: var(--ok); }
.badge.rejected, .badge.cancelled { background: #fdf2f0; color: var(--err); }

.lines-table input { min-width: 0; }
.toolbar { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-bottom: 1rem; align-items: end; }
.toolbar .field { min-width: 160px; }
.toolbar label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 0.25rem; }
.empty { color: var(--muted); padding: 1.5rem 0; text-align: center; }

.chart-bars {
  display: flex;
  align-items: flex-end;
  gap: 0.75rem;
  min-height: 180px;
  padding: 0.5rem 0 0;
}
.chart-month { flex: 1; text-align: center; }
.chart-col {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 0.25rem;
  height: 140px;
}
.chart-col .bar {
  width: 12px;
  border-radius: 2px 2px 0 0;
  min-height: 2px;
}
.chart-col .bar.income { background: #0f7a4a; }
.chart-col .bar.expense { background: #b42318; }
.chart-label { font-size: 0.75rem; color: var(--muted); margin-top: 0.4rem; }

.captcha-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0.35rem 0 0.55rem;
}
.captcha-image {
  border: 1px solid var(--line);
  background: #fff;
  line-height: 0;
}
.captcha-image svg { display: block; }
.captcha-refresh {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--navy);
  text-decoration: none;
  font-size: 1.2rem;
}
.captcha-refresh:hover { color: var(--amber); }

.app-footer {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}
.app-footer p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
}
.app-footer .hint { margin-top: 0.25rem; font-size: 0.82rem; }
.auth-copy {
  text-align: center;
  margin: 1.25rem 0 0;
  font-size: 0.85rem;
  color: var(--muted);
}
.copyright-preview {
  margin: 0;
  padding: 0.85rem 1rem;
  background: var(--cream, #FBFAF5);
  border: 1px solid var(--line);
  color: var(--navy);
  font-size: 0.95rem;
}

.hsn-field-wrap {
  display: flex;
  gap: 0.35rem;
  align-items: center;
}
.hsn-field-wrap input { flex: 1; min-width: 0; }
.hsn-lookup-btn { flex-shrink: 0; white-space: nowrap; }

.hsn-modal[hidden] { display: none !important; }
.hsn-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 4vh 1rem 2rem;
}
.hsn-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(21, 42, 69, 0.45);
}
.hsn-modal-sheet {
  position: relative;
  width: min(720px, 100%);
  max-height: 88vh;
  overflow: auto;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 12px 40px rgba(21, 42, 69, 0.18);
  padding: 1rem 1.15rem 1.25rem;
}
.hsn-modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  color: var(--navy);
}
.hsn-modal-tools {
  display: grid;
  grid-template-columns: 1fr 160px;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}
.hsn-modal-body { min-height: 120px; }
.hsn-modal-foot { margin: 0.75rem 0 0; }

@media (max-width: 560px) {
  .hsn-modal-tools { grid-template-columns: 1fr; }
}

@media (max-width: 960px) {
  .app-shell { grid-template-columns: 1fr; }
  .nav-toggle { display: inline-flex; }
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: min(280px, 86vw);
    z-index: 1000;
    transform: translateX(-105%);
    transition: transform 0.2s ease;
    box-shadow: none;
    overflow-y: auto;
  }
  .sidebar.is-open {
    transform: translateX(0);
    box-shadow: 8px 0 24px rgba(0,0,0,0.2);
  }
  .sidebar nav {
    flex-direction: column;
    flex-wrap: nowrap;
  }
  .sidebar-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.45);
    z-index: 999;
  }
  .sidebar-overlay[hidden] { display: none !important; }
  body.nav-open { overflow: hidden; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .stats { grid-template-columns: 1fr; }
  .main { padding: 1rem; }
}

/* Printing any app screen (Ctrl+P): drop the chrome, keep the content readable.
   Invoices have a dedicated layout at invoice-print.php. */
@media print {
  @page { size: A4; margin: 12mm; }
  html, body { background: #fff !important; }
  body { color: #000; }
  .app-shell { display: block !important; grid-template-columns: none !important; }
  .sidebar,
  .main-actions,
  .app-footer,
  .signed-in,
  .flash,
  .btn,
  button,
  .hsn-modal { display: none !important; }
  .main { padding: 0 !important; }
  .main-top { border: 0 !important; margin: 0 0 0.75rem !important; padding: 0 !important; }
  .main-top h1 { font-size: 1.4rem; }
  .panel {
    border: 1px solid #999 !important;
    box-shadow: none !important;
    background: #fff !important;
    break-inside: avoid;
    page-break-inside: avoid;
    margin: 0 0 0.75rem !important;
  }
  table { break-inside: auto; }
  tr, td, th { break-inside: avoid; page-break-inside: avoid; }
  thead { display: table-header-group; }
  a { color: #000; text-decoration: none; }
}