/* ============================================================
   Transaction File Audit — Design System
   Inspired by: Route Planner (modern professional SaaS aesthetic)
   ============================================================ */

/* ---- Variables ---- */
:root {
  /* Primary blue — steel/slate blue matching screenshot */
  --blue-900: #1D3F6B;
  --blue-700: #2B5C96;
  --blue-500: #4A85C4;
  --blue-100: #CDD9EC;
  --blue-50:  #E8EEF8;

  /* Teal-green accent — badge/CTA green from screenshot */
  --teal-700: #1E6B52;
  --teal-600: #27856A;
  --teal-300: #50B898;
  --teal-50:  #E4F4EF;

  /* Neutrals */
  --ink:      #1A2B3C;
  --gray-700: #2E3F52;
  --gray-500: #546478;
  --gray-400: #8496A8;
  --gray-200: #D0D9E4;
  --gray-100: #EDF2F8;

  --white:    #FFFFFF;
  /* Page background: the soft blue-gray from the screenshot */
  --page-bg:  #ECF1F8;

  --shadow-sm:   0 1px 4px rgba(30,60,100,0.08);
  --shadow-md:   0 4px 16px rgba(30,60,100,0.10);
  --shadow-lg:   0 10px 32px rgba(30,60,100,0.13);
  --shadow-blue: 0 4px 20px rgba(43,92,150,0.32);

  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  12px;
  --radius-xl:  16px;
  --radius-2xl: 24px;

  --font: -apple-system, "Helvetica Neue", Helvetica, Arial, sans-serif;
  --transition: 150ms ease;
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; }

body {
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
  background-color: var(--page-bg);
  background-image: linear-gradient(145deg, #DDE6F2 0%, #E8EEF8 30%, #F4F7FC 70%, #FAFCFF 100%);
  background-attachment: fixed;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  margin: 0;
}

h1, h2, h3, h4, h5, h6 {
  letter-spacing: -0.02em;
  line-height: 1.2;
  font-weight: 700;
  color: var(--ink);
}

a { color: var(--blue-700); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--blue-900); }

/* ---- Navbar Override ---- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 60px;
  background: rgba(236, 241, 248, 0.92) !important;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(180, 198, 220, 0.6);
  padding: 0 1.5rem;
}

.navbar-brand {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--ink) !important;
  letter-spacing: -0.02em;
}

.navbar-brand i { color: var(--blue-700); margin-right: 4px; }

.navbar .nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-500) !important;
  padding: 0.4rem 0.75rem !important;
  border-radius: var(--radius-md);
  transition: color var(--transition), background var(--transition);
}

.navbar .nav-link:hover {
  color: var(--blue-700) !important;
  background: var(--blue-50);
}

.navbar .nav-link.active { color: var(--blue-700) !important; }

.navbar .navbar-text,
.navbar .nav-link.text-light {
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-400) !important;
  opacity: 1 !important;
}

/* ---- Page Layout ---- */
.container-fluid {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

/* ---- Cards ---- */
.card {
  background: var(--white);
  border: 1px solid rgba(190, 210, 230, 0.7);
  border-radius: var(--radius-lg);
  box-shadow: 0 1px 4px rgba(30, 60, 100, 0.08), 0 0 0 1px rgba(190,210,230,0.15);
  transition: box-shadow 200ms ease, transform 200ms ease;
}

.card:hover { box-shadow: 0 6px 20px rgba(30, 60, 100, 0.10); }

.card-header {
  background: transparent;
  border-bottom: 1px solid var(--gray-200);
  padding: 1rem 1.25rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--gray-700);
  letter-spacing: -0.01em;
}

.card-body { padding: 1.25rem; }

/* ---- Buttons ---- */
.btn {
  font-family: var(--font);
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition);
  letter-spacing: -0.01em;
  cursor: pointer;
}

.btn-primary {
  background: var(--blue-700);
  border-color: var(--blue-700);
  color: var(--white);
  box-shadow: var(--shadow-blue);
}
.btn-primary:hover, .btn-primary:focus {
  background: var(--blue-900);
  border-color: var(--blue-900);
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(46,109,164,0.35);
}

.btn-secondary {
  background: var(--white);
  border: 1px solid var(--gray-200);
  color: var(--gray-500);
}
.btn-secondary:hover {
  background: var(--gray-100);
  border-color: var(--blue-500);
  color: var(--blue-700);
  transform: translateY(-1px);
}

.btn-success {
  background: var(--teal-600);
  border-color: var(--teal-600);
  color: var(--white);
}
.btn-success:hover {
  background: var(--teal-700);
  border-color: var(--teal-700);
  transform: translateY(-1px);
}

.btn-danger {
  background: #E74C3C;
  border-color: #E74C3C;
  color: var(--white);
}
.btn-danger:hover {
  background: #C0392B;
  border-color: #C0392B;
  transform: translateY(-1px);
}

.btn-outline-primary {
  color: var(--blue-700);
  border-color: var(--blue-700);
  background: transparent;
}
.btn-outline-primary:hover {
  background: var(--blue-700);
  color: var(--white);
  transform: translateY(-1px);
}

.btn-outline-secondary {
  color: var(--gray-500);
  border-color: var(--gray-200);
  background: transparent;
}
.btn-outline-secondary:hover {
  background: var(--gray-100);
  color: var(--blue-700);
  border-color: var(--blue-500);
  transform: translateY(-1px);
}

.btn-outline-danger {
  color: #E74C3C;
  border-color: #E74C3C;
  background: transparent;
}
.btn-outline-danger:hover {
  background: #E74C3C;
  color: var(--white);
}

.btn-link { color: var(--gray-500); }
.btn-link:hover { color: var(--blue-700); }

.btn-sm { font-size: 0.8rem; padding: 0.35rem 0.75rem; }
.btn-lg { font-size: 1rem; padding: 0.75rem 1.5rem; }

/* ---- Form Controls ---- */
.form-control, .form-select {
  font-family: var(--font);
  font-size: 14px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--blue-100);
  border-radius: var(--radius-md);
  padding: 0.5rem 0.75rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-control:focus, .form-select:focus {
  border-color: var(--blue-500);
  box-shadow: 0 0 0 3px rgba(74,133,196,0.15);
  outline: none;
}

.form-control::placeholder { color: var(--gray-400); }

.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 0.35rem;
  letter-spacing: -0.01em;
}

.form-text { font-size: 12px; color: var(--gray-400); margin-top: 0.25rem; }

.form-check-input:checked {
  background-color: var(--blue-700);
  border-color: var(--blue-700);
}

/* ---- Inline edit fields (forms table) ---- */
.inline-field, .milestone-field, .waiting-field, .party-field {
  border: 1px solid transparent;
  background: transparent;
  border-radius: var(--radius-sm);
  font-size: 13px;
  padding: 0.25rem 0.5rem;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
}

.inline-field:hover, .milestone-field:hover, .waiting-field:hover, .party-field:hover {
  border-color: var(--gray-200);
  background: var(--white);
}

.inline-field:focus, .milestone-field:focus, .waiting-field:focus, .party-field:focus {
  border-color: var(--blue-500);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(93,173,226,0.12);
  outline: none;
}

.save-flash {
  outline: 2px solid var(--teal-300);
  outline-offset: 1px;
  transition: outline 0.6s;
}

/* ---- Tables ---- */
.table {
  font-size: 13px;
  color: var(--ink);
  --bs-table-hover-bg: var(--blue-50);
}

.table thead th {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--gray-500);
  border-bottom: 1px solid var(--blue-100);
  padding: 0.75rem 0.75rem;
  background: var(--blue-50);
  white-space: nowrap;
}

.table tbody td {
  border-bottom: 1px solid var(--gray-100);
  padding: 0.55rem 0.75rem;
  vertical-align: middle;
}

.table tbody tr:last-child td { border-bottom: none; }

.table-hover tbody tr:hover { background: var(--blue-50); }

.table-responsive { border-radius: var(--radius-lg); overflow: hidden; }

/* Dashboard table specifically */
#txnTable thead th { background: var(--blue-700); color: rgba(255,255,255,0.80); }
#txnTable thead th.sortable:hover { background: var(--blue-900); color: var(--white); }

/* ---- Badges ---- */
.badge {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 4px 8px;
  border-radius: 999px;
}

/* Bootstrap badge overrides */
.badge.bg-primary    { background: var(--blue-700) !important; }
.badge.bg-success    { background: var(--teal-600) !important; }
.badge.bg-danger     { background: #E74C3C !important; }
.badge.bg-warning    { background: #F39C12 !important; color: var(--white) !important; }
.badge.bg-secondary  { background: var(--gray-400) !important; }
.badge.bg-info       { background: var(--blue-100) !important; color: var(--blue-900) !important; }
.badge.bg-light      { background: var(--gray-100) !important; color: var(--gray-500) !important; }

/* Status-specific pills */
.status-badge-new      { background: var(--gray-100); color: var(--gray-500); }
.status-badge-received { background: var(--teal-50);  color: var(--teal-700); }
.status-badge-reviewed { background: var(--blue-50);  color: var(--blue-700); }
.status-badge-approved { background: var(--teal-50);  color: var(--teal-700); font-weight: 800; }
.status-badge-rejected { background: #FDEDEC; color: #C0392B; }
.status-badge-na       { background: var(--gray-100); color: var(--gray-400); }

/* ---- Alerts ---- */
.alert {
  border: none;
  border-radius: var(--radius-lg);
  font-size: 14px;
  padding: 0.85rem 1.1rem;
}

.alert-success { background: var(--teal-50); color: var(--teal-700); }
.alert-danger  { background: #FDEDEC; color: #C0392B; }
.alert-warning { background: #FEF9E7; color: #9A6C00; }
.alert-info    { background: var(--blue-50); color: var(--blue-900); }
.alert-light   { background: var(--blue-50); color: var(--gray-500); border: 1px solid var(--blue-100); }

.alert .btn-close { opacity: 0.5; }
.alert .btn-close:hover { opacity: 1; }

/* ---- Nav Tabs ---- */
.nav-tabs {
  border-bottom: 1px solid var(--blue-100);
  gap: 4px;
}

.nav-tabs .nav-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-500);
  border: none;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  padding: 0.6rem 1rem;
  transition: color var(--transition), background var(--transition);
  letter-spacing: -0.01em;
}

.nav-tabs .nav-link:hover {
  color: var(--blue-700);
  background: var(--blue-50);
  border-color: transparent;
}

.nav-tabs .nav-link.active {
  color: var(--blue-700);
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-bottom-color: var(--white);
  font-weight: 700;
}

.tab-content { padding-top: 1rem; }

/* ---- Progress Bar ---- */
.progress {
  background: var(--blue-50);
  border-radius: 999px;
}

.progress-bar {
  background: var(--teal-600);
  border-radius: 999px;
  transition: width 0.5s ease;
}

/* ---- Breadcrumb ---- */
.breadcrumb {
  font-size: 13px;
  color: var(--gray-400);
}

.breadcrumb-item a { color: var(--gray-400); }
.breadcrumb-item a:hover { color: var(--blue-700); }
.breadcrumb-item.active { color: var(--gray-700); }
.breadcrumb-item + .breadcrumb-item::before { color: var(--gray-300); }

/* ---- Modals ---- */
.modal-content {
  border: 1px solid rgba(190, 210, 230, 0.8);
  border-radius: var(--radius-xl);
  box-shadow: 0 12px 40px rgba(30, 60, 100, 0.15);
}

.modal-header {
  border-bottom: 1px solid var(--gray-200);
  padding: 1.1rem 1.25rem;
}

.modal-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.modal-footer {
  border-top: 1px solid var(--gray-200);
  padding: 0.9rem 1.25rem;
}

/* ---- Auth Pages ---- */
.auth-wrapper {
  min-height: 100vh;
  background-color: var(--page-bg);
  background-image: linear-gradient(145deg, #DDE6F2 0%, #E8EEF8 30%, #F4F7FC 70%, #FAFCFF 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.auth-card {
  background: var(--white);
  border: 1px solid rgba(190, 210, 230, 0.8);
  border-radius: var(--radius-2xl);
  box-shadow: 0 8px 32px rgba(30, 60, 100, 0.12);
  padding: 2.5rem;
  width: 100%;
  max-width: 440px;
}

.auth-logo {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.auth-logo i { color: var(--blue-700); }

.auth-subtitle {
  font-size: 13px;
  color: var(--gray-400);
  margin-top: 0.25rem;
}

/* ---- Dashboard Stat Cards ---- */
.stat-card {
  background: var(--white);
  border: 1px solid rgba(190, 210, 230, 0.7);
  border-radius: var(--radius-lg);
  box-shadow: 0 1px 4px rgba(30,60,100,0.07);
  padding: 1rem 1.25rem;
  text-align: center;
}

.stat-card .stat-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--gray-400);
  margin-bottom: 0.25rem;
}

.stat-card .stat-value {
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
}

/* ---- Section Headers ---- */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.section-header h5 {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--gray-500);
  margin: 0;
}

/* ---- Clickable Rows ---- */
.clickable-row { cursor: pointer; }
.clickable-row:hover td { background: var(--blue-50) !important; }

/* ---- Select in tables ---- */
.form-select.form-select-sm {
  font-size: 12px;
  padding: 0.25rem 1.5rem 0.25rem 0.5rem;
  border-color: var(--gray-200);
  border-radius: var(--radius-sm);
  color: var(--ink);
}

/* ---- Sortable table headers ---- */
.sortable {
  cursor: pointer;
  user-select: none;
}

/* ---- Empty states ---- */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--gray-400);
}

.empty-state i { font-size: 2.5rem; margin-bottom: 0.75rem; display: block; }
.empty-state p { font-size: 14px; margin: 0; }

/* ---- Upload progress ---- */
#uploadProgress .progress-bar {
  background: var(--blue-700);
}

/* ---- Admin badge row ---- */
tr .badge { vertical-align: middle; }

/* ---- Scrollbar (webkit) ---- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--gray-100); }
::-webkit-scrollbar-thumb { background: var(--gray-200); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--gray-400); }

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .container-fluid { padding: 1rem; }
  .auth-card { padding: 1.75rem; }
  .navbar { padding: 0 1rem; }
}