/* =====================================================================
   American TradeLink — Accounting System
   Design language: blue and red brand palette, Calibri throughout.
   Deep blue for structure and navigation, red for the actions and
   highlights that move money. Tabular numerals everywhere numbers
   appear so columns of figures actually line up.
   ===================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Carlito:ital,wght@0,400;0,700;1,400&display=swap');

:root {
  /* -- Brand tokens -- */
  --blue-950: #001b3f;
  --blue-900: #012a5c;
  --blue-800: #023872;
  --blue-700: #054c9d;
  --blue-600: #2d6bb3;
  --red-500: #d70714;
  --red-600: #b30610;
  --red-100: #fcebec;

  --success-600: #1d7a4c;
  --success-100: #e0f2e7;
  --danger-600: #b3261e;
  --danger-100: #fbe6e4;
  --warning-600: #a3620a;
  --warning-100: #faedd6;

  /* -- Light theme (default) -- */
  --bg: #f5f7fa;
  --surface: #ffffff;
  --surface-raised: #ffffff;
  --border: #dde3ec;
  --border-strong: #c2ccdb;
  --text-primary: #14202f;
  --text-secondary: #556072;
  --text-muted: #8993a3;
  --link: var(--blue-700);
  --accent: var(--red-500);
  --accent-contrast: #ffffff;
  --sidebar-bg: var(--blue-700);
  --sidebar-text: #c3d2e5;
  --sidebar-text-active: #ffffff;
  --sidebar-active-bg: rgba(215, 7, 20, 0.18);

  --shadow-sm: 0 1px 2px rgba(12, 44, 80, 0.07);
  --shadow-md: 0 4px 16px rgba(12, 44, 80, 0.10);
  --radius-sm: 6px;
  --radius-md: 10px;

  --font-body: 'Calibri', 'Carlito', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'Calibri', 'Carlito', 'Segoe UI', sans-serif;
}

[data-theme="dark"] {
  --bg: #0b1420;
  --surface: #111d2e;
  --surface-raised: #15233a;
  --border: #223148;
  --border-strong: #2e415c;
  --text-primary: #e7ecf4;
  --text-secondary: #a2aec2;
  --text-muted: #6d7a8f;
  --link: #8eaed3;
  --accent: var(--red-500);
  --accent-contrast: #ffffff;
  --sidebar-bg: var(--blue-700);
  --sidebar-text: #96a7c0;
  --sidebar-text-active: #ffffff;
  --sidebar-active-bg: rgba(215, 7, 20, 0.22);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

body { display: flex; min-height: 100vh; }

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

.nums, td.num, .amount, input[type="number"] {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* -------------------- Layout shell -------------------- */
.app-sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  overflow-x: hidden;
  transition: width 0.18s ease;
}
.app-sidebar.collapsed { width: 68px; }

.sidebar-brand {
  padding: 18px 20px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.sidebar-brand .brand-logo {
  display: block;
  height: 40px;
  width: auto;
  max-width: 100%;
}
.app-sidebar.collapsed .sidebar-brand { padding: 18px 14px 16px; justify-content: center; }
.app-sidebar.collapsed .sidebar-brand .brand-logo { height: 30px; }
.sidebar-brand .brand-tag {
  font-size: 11px;
  color: #ffb3b8;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  margin-top: 8px;
}
.app-sidebar.collapsed .brand-tag,
.app-sidebar.collapsed .sidebar-collapse-btn svg.icon-collapse,
.app-sidebar:not(.collapsed) .sidebar-collapse-btn svg.icon-expand { display: none; }
.sidebar-collapse-btn {
  background: rgba(255,255,255,0.07);
  border: none;
  color: var(--sidebar-text);
  width: 26px;
  height: 26px;
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
}
.sidebar-collapse-btn:hover { background: rgba(255,255,255,0.15); }
.sidebar-collapse-btn svg { width: 14px; height: 14px; }

.sidebar-nav { padding: 10px 10px; flex: 1; }

.sidebar-category { margin-bottom: 2px; }
.sidebar-category-header {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 10px;
  background: none;
  border: none;
  color: #9fb0c9;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.9px;
  cursor: pointer;
  border-radius: 8px;
  text-align: left;
}
.sidebar-category-header:hover { background: rgba(255,255,255,0.05); color: #cfd8e6; }
.sidebar-category-header .cat-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.sidebar-category-header .cat-icon svg { width: 16px; height: 16px; }
.sidebar-category-header .cat-label { flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sidebar-category-header .cat-chevron { width: 13px; height: 13px; flex-shrink: 0; transition: transform 0.15s ease; opacity: 0.8; }
.sidebar-category.expanded .cat-chevron { transform: rotate(90deg); }
.sidebar-category-items {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.18s ease;
}
.sidebar-category-items > div { overflow: hidden; }
.sidebar-category.expanded .sidebar-category-items { grid-template-rows: 1fr; }
.sidebar-category-items-inner { padding: 2px 0 6px; }

.app-sidebar.collapsed .sidebar-category-header .cat-label,
.app-sidebar.collapsed .sidebar-category-header .cat-chevron { display: none; }
.app-sidebar.collapsed .sidebar-category-header { justify-content: center; padding: 10px; }
.app-sidebar.collapsed .sidebar-category-items { grid-template-rows: 1fr !important; }

.sidebar-section-label {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #5b6c85;
  padding: 14px 10px 6px;
}
.sidebar-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 12px 9px 22px;
  border-radius: 10px;
  color: var(--sidebar-text);
  font-size: 13.5px;
  font-weight: 500;
  margin-bottom: 2px;
  position: relative;
}
.sidebar-link:hover { background: rgba(255,255,255,0.07); text-decoration: none; color: #fff; }
.sidebar-link.active { background: #eef3fc; color: var(--blue-900); font-weight: 600; }
.sidebar-link.active .sidebar-link-icon { background: var(--blue-700); color: #fff; }
.sidebar-link-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: rgba(255,255,255,0.08);
  flex-shrink: 0;
}
.sidebar-link.active .sidebar-link-icon svg { stroke: #fff; }
.sidebar-link svg { width: 14px; height: 14px; flex-shrink: 0; opacity: 0.95; }

.app-sidebar.collapsed .sidebar-link { padding: 9px; justify-content: center; }
.app-sidebar.collapsed .sidebar-link span:not(.sidebar-link-icon) { display: none; }
.app-sidebar.collapsed .sidebar-link,
.app-sidebar.collapsed .sidebar-category-header { position: relative; }
.app-sidebar.collapsed .sidebar-link::after,
.app-sidebar.collapsed .sidebar-category-header::after {
  content: attr(data-tooltip);
  position: absolute;
  left: calc(100% + 10px);
  top: 50%;
  transform: translateY(-50%);
  background: var(--blue-950, #08152b);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 6px 10px;
  border-radius: 6px;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.12s ease;
  z-index: 60;
  box-shadow: 0 4px 12px rgba(0,0,0,0.25);
}
.app-sidebar.collapsed .sidebar-link:hover::after,
.app-sidebar.collapsed .sidebar-category-header:hover::after {
  opacity: 1;
  visibility: visible;
}

.sidebar-footer {
  padding: 14px 16px;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 12px;
  color: #6d7a8f;
}
.app-sidebar.collapsed .sidebar-footer { padding: 14px 10px; }
.app-sidebar.collapsed .sidebar-footer > a > div:not(:first-child) { display: none; }
.app-sidebar.collapsed .sidebar-footer > a { justify-content: center; }

.app-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.app-topbar {
  height: 60px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar-title { font-size: 16px; font-weight: 600; }
.topbar-actions { display: flex; align-items: center; gap: 14px; }

.app-content { padding: 24px; flex: 1; }

/* -------------------- Components -------------------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.pagination-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding: 14px 20px;
  background: var(--bg);
  border-top: 1px solid var(--border);
}
.pagination-footer .total-records { font-weight: 700; font-size: 14px; color: var(--text); }
.pagination-footer .page-size-select { width: auto; padding: 5px 8px; font-size: 13px; margin-left: 10px; }
.pagination-footer .page-nav { display: flex; align-items: center; gap: 6px; }
.pagination-footer .page-btn {
  min-width: 30px;
  height: 30px;
  padding: 0 6px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-secondary);
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}
.pagination-footer .page-btn:hover { background: var(--bg); text-decoration: none; }
.pagination-footer .page-btn.active { background: var(--blue-950); color: #fff; border-color: var(--blue-950); }
.pagination-footer .page-btn.disabled { opacity: 0.4; pointer-events: none; }
.pagination-footer .page-ellipsis { color: var(--text-muted); padding: 0 2px; }

.card-header {
  padding: 13px 20px;
  background: var(--blue-700);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.card-header h2, .card-header h3 { margin: 0; font-size: 14.5px; font-weight: 700; color: #ffffff; }
.card-header .btn-outline {
  background: #ffffff;
  color: var(--blue-800);
  border-color: #ffffff;
  font-weight: 700;
}
.card-header .btn-outline:hover { background: var(--bg); }
.card-header select.form-control {
  background: #ffffff;
  color: var(--text-primary);
  border-color: #ffffff;
}
.card-body { padding: 20px; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; margin-bottom: 20px; }
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  box-shadow: var(--shadow-sm);
}
.stat-label { font-size: 12px; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.5px; font-weight: 600; }
.stat-value { font-family: var(--font-mono); font-size: 24px; font-weight: 600; margin-top: 6px; }
.stat-value.positive { color: var(--success-600); }
.stat-value.negative { color: var(--danger-600); }
.stat-delta { font-size: 12px; margin-top: 4px; color: var(--text-muted); }

table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
thead th {
  text-align: left;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  font-weight: 600;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-strong);
  white-space: nowrap;
}
tbody td { padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
tbody tr:hover { background: rgba(184, 134, 58, 0.05); }
td.num, th.num { text-align: right; }

.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2px;
}
.badge-success { background: var(--success-100); color: var(--success-600); }
.badge-danger { background: var(--danger-100); color: var(--danger-600); }
.badge-warning { background: var(--warning-100); color: var(--warning-600); }
.badge-neutral { background: var(--border); color: var(--text-secondary); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  font-family: var(--font-body);
}
.btn-primary { background: var(--blue-800); color: #fff; }
.btn-primary:hover { background: var(--blue-700); text-decoration: none; }
.btn-accent { background: var(--red-500); color: var(--accent-contrast); }
.btn-accent:hover { background: var(--red-600); text-decoration: none; }
.btn-outline { background: transparent; border-color: var(--border-strong); color: var(--text-primary); }
.btn-outline:hover { background: var(--border); text-decoration: none; }
.btn-danger { background: var(--danger-600); color: #fff; }
.btn-sm { padding: 5px 10px; font-size: 12.5px; }

.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 12.5px; font-weight: 600; margin-bottom: 6px; color: var(--text-secondary); }
.form-control {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 13.5px;
}
.form-control:focus { outline: none; border-color: var(--red-500); box-shadow: 0 0 0 3px rgba(184,134,58,0.15); }
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; }

.theme-toggle {
  width: 34px; height: 34px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-secondary);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
}

.alert { padding: 12px 16px; border-radius: var(--radius-sm); font-size: 13.5px; margin-bottom: 16px; }
.alert-success { background: var(--success-100); color: var(--success-600); }
.alert-danger { background: var(--danger-100); color: var(--danger-600); }
.alert-warning { background: var(--warning-100); color: var(--warning-600); }

.empty-state { text-align: center; padding: 48px 20px; color: var(--text-muted); }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 5px; }

@media (max-width: 900px) {
  .app-sidebar { position: fixed; left: -240px; z-index: 50; transition: left 0.2s ease; height: 100vh; width: 240px !important; }
  .app-sidebar.open { left: 0; }
  .app-sidebar.collapsed .sidebar-link span:not(.sidebar-link-icon),
  .app-sidebar.collapsed .sidebar-category-header .cat-label,
  .app-sidebar.collapsed .sidebar-category-header .cat-chevron,
  .app-sidebar.collapsed .brand-tag,
  .app-sidebar.collapsed .sidebar-footer > a > div:not(:first-child) { display: revert; }
  .app-sidebar.collapsed .sidebar-link::after,
  .app-sidebar.collapsed .sidebar-category-header::after { content: none; }
  .sidebar-collapse-btn { display: none; }
  .app-content { padding: 16px; }
  .stat-grid { grid-template-columns: repeat(2, 1fr) !important; }
  table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; white-space: nowrap; }
  .form-row { flex-wrap: wrap; }
  .form-row .form-group { flex: 1 1 100%; min-width: 0; }
}

@media (max-width: 600px) {
  .app-content { padding: 12px; }
  .stat-grid { grid-template-columns: 1fr !important; }
  .signin-wrap { width: 100%; }
  .signin-card { padding: 28px 20px; }
  .card-header { flex-direction: column; align-items: flex-start; gap: 8px; }
  .card-header .btn-outline, .card-header select.form-control { width: 100%; }
  h1, .page-title { font-size: 20px !important; }
  .btn { padding: 9px 14px; font-size: 13.5px; }
}