/* ==========================================================================
   Accounting System — Shared Stylesheet
   Design tokens: deep navy ledger palette, restrained accents, high density.
   ========================================================================== */

:root {
  --acc-navy-900: #0d1f33;
  --acc-navy-800: #12283f;
  --acc-navy-700: #17324e;
  --acc-navy-600: #1e3f60;
  --acc-teal-600: #2f6f62;
  --acc-teal-700: #26594f;
  --acc-teal-50:  #eaf3f1;
  --acc-surface:  #f4f6f8;
  --acc-card:     #ffffff;
  --acc-border:   #dde2e8;
  --acc-text:     #1f2a37;
  --acc-text-muted: #667085;
  --acc-success:  #1e7145;
  --acc-success-bg: #e8f4ec;
  --acc-warning:  #92620a;
  --acc-warning-bg: #fbf1de;
  --acc-danger:   #b42318;
  --acc-danger-bg: #fbe9e7;
  --acc-info:     #2563ac;
  --acc-info-bg:  #e8f0fa;
  --acc-radius:   4px;
  --acc-font: "Segoe UI", "Segoe UI Web", -apple-system, BlinkMacSystemFont, Roboto, Helvetica, Arial, sans-serif;
  --acc-font-mono: "Consolas", "SFMono-Regular", Menlo, monospace;
}

html, body {
  height: 100%;
  background: var(--acc-surface);
  font-family: var(--acc-font);
  color: var(--acc-text);
  font-size: 14px;
}

a { color: var(--acc-info); text-decoration: none; }
a:hover { color: var(--acc-navy-700); text-decoration: underline; }

/* ---------- Layout shell ---------- */
.acc-shell { display: flex; min-height: 100vh; }

.acc-sidebar {
  width: 264px;
  flex-shrink: 0;
  background: var(--acc-navy-900);
  color: #cfd9e3;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  transition: margin-left .2s ease;
}
.acc-sidebar.collapsed { margin-left: -264px; }

.acc-brand {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: 1rem 1.1rem;
  border-bottom: 1px solid rgba(255,255,255,.08);
  color: #fff;
  font-weight: 600;
  font-size: 1.02rem;
  letter-spacing: .2px;
}
.acc-brand .bi { font-size: 1.35rem; color: var(--acc-teal-600); }

.acc-nav { padding: .5rem 0 1.5rem; }
.acc-nav .nav-section-title {
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: #7d8ea3;
  padding: .9rem 1.1rem .3rem;
}
.acc-nav .nav-link-group > a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .5rem 1.1rem;
  color: #cfd9e3;
  font-size: .875rem;
  border-left: 3px solid transparent;
  cursor: pointer;
}
.acc-nav .nav-link-group > a:hover,
.acc-nav a.acc-nav-link:hover {
  background: rgba(255,255,255,.06);
  color: #fff;
  text-decoration: none;
}
.acc-nav .nav-link-group > a .bi:first-child { margin-right: .6rem; width: 1.1rem; text-align: center; }
.acc-nav .nav-link-group > a .bi-chevron-down { font-size: .7rem; transition: transform .15s ease; }
.acc-nav .nav-link-group > a[aria-expanded="true"] .bi-chevron-down { transform: rotate(180deg); }
.acc-nav .nav-link-group > a[aria-expanded="true"] { background: rgba(255,255,255,.05); color: #fff; }

.acc-nav .acc-subnav { padding-left: 0; list-style: none; margin: 0; }
.acc-nav .acc-subnav a.acc-nav-link {
  display: block;
  padding: .42rem 1.1rem .42rem 2.6rem;
  font-size: .83rem;
  color: #b7c3d1;
  border-left: 3px solid transparent;
}
.acc-nav .acc-subnav a.acc-nav-link.active,
.acc-nav .nav-link-group > a.active {
  border-left-color: var(--acc-teal-600);
  background: rgba(255,255,255,.07);
  color: #fff;
}

/* ---------- Main column ---------- */
.acc-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.acc-topbar {
  background: #fff;
  border-bottom: 1px solid var(--acc-border);
  padding: .55rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  position: sticky;
  top: 0;
  z-index: 20;
}
.acc-topbar .acc-toggle-btn {
  border: 1px solid var(--acc-border);
  background: #fff;
  border-radius: var(--acc-radius);
  width: 34px; height: 34px;
}
.acc-topbar .acc-search { max-width: 340px; }
.acc-topbar .acc-user {
  display: flex; align-items: center; gap: .55rem;
  padding-left: .9rem; border-left: 1px solid var(--acc-border);
}
.acc-user .acc-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--acc-navy-700); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 600; font-size: .8rem;
}
.acc-topbar .acc-bell { position: relative; }
.acc-topbar .acc-bell .badge {
  position: absolute; top: -4px; right: -6px; font-size: .6rem;
}

.acc-breadcrumb-bar {
  background: #fff;
  border-bottom: 1px solid var(--acc-border);
  padding: .55rem 1.25rem;
}
.acc-breadcrumb-bar .breadcrumb { margin: 0; font-size: .82rem; }
.acc-page-title { font-size: 1.15rem; font-weight: 600; margin: 0; color: var(--acc-navy-900); }
.acc-page-subtitle { font-size: .82rem; color: var(--acc-text-muted); }

.acc-content { padding: 1.25rem; flex: 1; }

.acc-footer {
  padding: .75rem 1.25rem;
  font-size: .78rem;
  color: var(--acc-text-muted);
  border-top: 1px solid var(--acc-border);
  background: #fff;
}

/* ---------- Cards / KPIs ---------- */
.acc-card {
  background: var(--acc-card);
  border: 1px solid var(--acc-border);
  border-radius: var(--acc-radius);
}
.acc-card > .acc-card-header {
  padding: .75rem 1rem;
  border-bottom: 1px solid var(--acc-border);
  display: flex; align-items: center; justify-content: space-between;
}
.acc-card > .acc-card-header h2, .acc-card > .acc-card-header h6 {
  font-size: .95rem; font-weight: 600; margin: 0; color: var(--acc-navy-900);
}
.acc-card > .acc-card-body { padding: 1rem; }

.acc-kpi { padding: 1rem; border-left: 3px solid var(--acc-teal-600); }
.acc-kpi .acc-kpi-label { font-size: .76rem; text-transform: uppercase; letter-spacing: .04em; color: var(--acc-text-muted); }
.acc-kpi .acc-kpi-value { font-size: 1.5rem; font-weight: 650; color: var(--acc-navy-900); font-variant-numeric: tabular-nums; }
.acc-kpi .acc-kpi-delta { font-size: .78rem; }
.acc-kpi.warn { border-left-color: var(--acc-warning); }
.acc-kpi.danger { border-left-color: var(--acc-danger); }
.acc-kpi.info { border-left-color: var(--acc-info); }

/* ---------- Tables ---------- */
.acc-table-toolbar { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; margin-bottom: .85rem; }
.acc-table-toolbar .form-control, .acc-table-toolbar .form-select { font-size: .84rem; }

table.acc-table { width: 100%; font-size: .855rem; margin-bottom: 0; }
table.acc-table thead th {
  background: #f8f9fb;
  color: var(--acc-text-muted);
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  font-weight: 600;
  border-bottom: 1px solid var(--acc-border);
  white-space: nowrap;
  padding: .55rem .7rem;
}
table.acc-table td { padding: .55rem .7rem; vertical-align: middle; border-bottom: 1px solid #eef1f4; }
table.acc-table tbody tr:hover { background: #fafbfc; }
.acc-num { text-align: right; font-variant-numeric: tabular-nums; font-family: var(--acc-font-mono); }
.acc-code { font-family: var(--acc-font-mono); font-size: .82rem; color: var(--acc-navy-700); }

/* ---------- Badges / status ---------- */
.badge.acc-status-draft   { background: #eef1f4; color: #475467; }
.badge.acc-status-issued  { background: var(--acc-info-bg); color: var(--acc-info); }
.badge.acc-status-posted  { background: var(--acc-success-bg); color: var(--acc-success); }
.badge.acc-status-partial { background: var(--acc-warning-bg); color: var(--acc-warning); }
.badge.acc-status-paid    { background: var(--acc-success-bg); color: var(--acc-success); }
.badge.acc-status-overdue,
.badge.acc-status-rejected,
.badge.acc-status-cancelled { background: var(--acc-danger-bg); color: var(--acc-danger); }
.badge.acc-status-pending { background: var(--acc-warning-bg); color: var(--acc-warning); }
.badge.acc-status-active  { background: var(--acc-success-bg); color: var(--acc-success); }
.badge.acc-status-inactive{ background: #eef1f4; color: #667085; }
.badge.acc-status-reconciled { background: var(--acc-success-bg); color: var(--acc-success); }
.badge.acc-status-unmatched  { background: var(--acc-warning-bg); color: var(--acc-warning); }

/* ---------- Forms ---------- */
.acc-form-section { border-bottom: 1px solid var(--acc-border); padding-bottom: 1rem; margin-bottom: 1rem; }
.acc-form-section:last-child { border-bottom: none; }
.acc-form-section h6 {
  font-size: .78rem; text-transform: uppercase; letter-spacing: .05em;
  color: var(--acc-text-muted); margin-bottom: .85rem;
}
label.form-label { font-size: .82rem; font-weight: 600; color: var(--acc-text); }
.form-text { font-size: .76rem; }
.acc-readonly-value { padding: .375rem 0; font-size: .875rem; }

/* ---------- Invoice / ledger balance strip ---------- */
.acc-balance-strip {
  display: flex; gap: 1.5rem; padding: .85rem 1rem;
  background: var(--acc-navy-900); color: #fff; border-radius: var(--acc-radius);
  align-items: center; flex-wrap: wrap;
}
.acc-balance-strip .item { display: flex; flex-direction: column; }
.acc-balance-strip .item .lbl { font-size: .7rem; text-transform: uppercase; letter-spacing: .05em; color: #9fb0c4; }
.acc-balance-strip .item .val { font-size: 1.05rem; font-weight: 650; font-variant-numeric: tabular-nums; }
.acc-balance-strip.balanced { background: var(--acc-teal-700); }
.acc-balance-strip.unbalanced { background: var(--acc-danger); }
.acc-balance-pill {
  margin-left: auto; padding: .3rem .75rem; border-radius: 999px;
  font-size: .78rem; font-weight: 600; background: rgba(255,255,255,.15);
}

/* ---------- Timeline / history ---------- */
.acc-timeline { list-style: none; margin: 0; padding: 0; position: relative; }
.acc-timeline li { position: relative; padding: 0 0 1.1rem 1.6rem; border-left: 2px solid var(--acc-border); }
.acc-timeline li:last-child { border-left-color: transparent; padding-bottom: 0; }
.acc-timeline li::before {
  content: ""; position: absolute; left: -6px; top: 2px;
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--acc-teal-600); border: 2px solid #fff; box-shadow: 0 0 0 1px var(--acc-border);
}
.acc-timeline .ts { font-size: .74rem; color: var(--acc-text-muted); }
.acc-timeline .ttl { font-size: .86rem; font-weight: 600; }

/* ---------- Wizard / tabs ---------- */
.acc-tabs .nav-link { font-size: .85rem; color: var(--acc-text-muted); border: none; border-bottom: 2px solid transparent; }
.acc-tabs .nav-link.active { color: var(--acc-navy-900); border-bottom-color: var(--acc-teal-600); background: transparent; font-weight: 600; }

/* ---------- Printable documents ---------- */
.acc-print-sheet {
  background: #fff; border: 1px solid var(--acc-border); border-radius: var(--acc-radius);
  padding: 2rem; max-width: 860px; margin: 0 auto;
}
.acc-print-sheet .doc-title { font-size: 1.35rem; font-weight: 700; color: var(--acc-navy-900); }
.acc-print-sheet .doc-meta { font-size: .82rem; color: var(--acc-text-muted); }
@media print {
  .acc-sidebar, .acc-topbar, .acc-breadcrumb-bar, .acc-footer, .no-print { display: none !important; }
  .acc-content { padding: 0; }
  .acc-print-sheet { border: none; }
}

/* ---------- Misc ---------- */
.acc-price-configured { color: var(--acc-text-muted); text-decoration: line-through; font-size: .82rem; }
.acc-price-override { color: var(--acc-warning); font-weight: 600; }
.acc-help-note {
  background: var(--acc-teal-50); border: 1px solid #cfe4de; border-radius: var(--acc-radius);
  padding: .6rem .85rem; font-size: .8rem; color: var(--acc-teal-700);
}
.acc-empty-state { text-align: center; padding: 3rem 1rem; color: var(--acc-text-muted); }
.acc-empty-state .bi { font-size: 2.2rem; color: #c6cdd6; }

@media (max-width: 991.98px) {
  .acc-sidebar { position: fixed; z-index: 1040; margin-left: -264px; }
  .acc-sidebar.mobile-open { margin-left: 0; box-shadow: 0 0 0 100vmax rgba(0,0,0,.35); }
}