/*
 * Smart Invoice System - Modern UI compatibility layer (2026)
 * Keeps the legacy markup and JavaScript stable while giving the application
 * a cleaner, responsive, modern visual system.
 */
:root {
  --sis-bg: #f4f7fb;
  --sis-surface: #ffffff;
  --sis-surface-soft: #f8fafc;
  --sis-text: #182230;
  --sis-muted: #667085;
  --sis-border: #e4eaf1;
  --sis-primary: #2563eb;
  --sis-primary-strong: #1d4ed8;
  --sis-success: #16a34a;
  --sis-danger: #dc2626;
  --sis-radius: 14px;
  --sis-radius-sm: 10px;
  --sis-shadow: 0 10px 30px rgba(18, 32, 56, .08);
  --sis-shadow-sm: 0 4px 16px rgba(18, 32, 56, .07);
}

html, body { min-height: 100%; }
body {
  background: var(--sis-bg);
  color: var(--sis-text);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { transition: color .18s ease, background-color .18s ease, border-color .18s ease, box-shadow .18s ease; }

.navbar-mainmenu {
  background: linear-gradient(100deg, #111827 0%, #18233a 55%, #1d4ed8 140%);
  border: 0;
  box-shadow: 0 8px 24px rgba(17, 24, 39, .16);
}
.navbar-mainmenu .nav > li > a,
.navbar-mainmenu .brand,
.navbar-mainmenu .brand-up { color: rgba(255,255,255,.9); }
.navbar-mainmenu .nav > li > a:hover,
.navbar-mainmenu .nav > li.open > a,
.navbar-mainmenu .nav > li.active > a { background: rgba(255,255,255,.09); color: #fff; }
.navbar-mainmenu .dropdown-menu {
  border: 1px solid rgba(17,24,39,.08);
  border-radius: 12px;
  box-shadow: 0 18px 45px rgba(15,23,42,.16);
  padding: 8px;
}
.navbar-mainmenu .dropdown-menu > li > a { border-radius: 8px; padding-top: 9px; padding-bottom: 9px; }
.navbar-mainmenu .dropdown-menu > li > a:hover { background: #f1f5f9; color: #1d4ed8; }

.breadcrumb {
  background: rgba(255,255,255,.94);
  border: 1px solid var(--sis-border);
  border-radius: var(--sis-radius);
  box-shadow: var(--sis-shadow-sm);
  margin: 18px 18px 14px;
  padding: 14px 18px;
}
.page-title { color: var(--sis-text); font-weight: 700; letter-spacing: -.02em; }
.page-desc { color: var(--sis-muted) !important; }

.container-fluid { padding-left: 18px; padding-right: 18px; }
.card,
.well,
.panel {
  background: var(--sis-surface);
  border: 1px solid var(--sis-border);
  border-radius: var(--sis-radius);
  box-shadow: var(--sis-shadow-sm);
}
.card-header,
.panel-heading {
  background: linear-gradient(180deg, #fff, #fbfcfe);
  border-bottom: 1px solid var(--sis-border);
  color: var(--sis-text);
  font-weight: 650;
}
.card-block, .panel-body { padding: 18px; }

.form-control,
select.form-control,
textarea.form-control,
.input-group-addon,
.select2-container .select2-choice {
  border-color: #d8e0ea;
  border-radius: 9px;
  box-shadow: none;
  min-height: 38px;
}
.form-control:focus,
select.form-control:focus,
textarea.form-control:focus {
  border-color: #7aa2ff;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, .12);
}
label, .form-control-label { color: #344054; font-weight: 600; }

.btn {
  border-radius: 9px;
  font-weight: 600;
  transition: transform .12s ease, box-shadow .18s ease, background-color .18s ease, border-color .18s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--sis-primary); border-color: var(--sis-primary); box-shadow: 0 4px 12px rgba(37,99,235,.18); }
.btn-primary:hover, .btn-primary:focus { background: var(--sis-primary-strong); border-color: var(--sis-primary-strong); }
.btn-success { box-shadow: 0 4px 12px rgba(22,163,74,.16); }
.btn-danger { box-shadow: 0 4px 12px rgba(220,38,38,.13); }
.btn-link { border-radius: 10px; }

.table,
table.dataTable {
  background: #fff;
  border-radius: 12px;
}
.table > thead > tr > th,
table.dataTable thead th {
  background: #f8fafc;
  color: #475467;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .04em;
  border-bottom: 1px solid var(--sis-border) !important;
}
.table > tbody > tr > td { border-top-color: #edf1f5; vertical-align: middle; }
.table > tbody > tr:hover > td { background: #f9fbff; }

.nav-tabs {
  border-bottom: 1px solid var(--sis-border);
  gap: 4px;
}
.nav-tabs > li > a,
.tabs-left > .nav-tabs > li > a {
  border-radius: 9px;
  color: #475467;
  font-weight: 600;
}
.nav-tabs > li.active > a,
.nav-tabs > li.active > a:hover,
.nav-tabs > li.active > a:focus,
.tabs-left > .nav-tabs > li.active > a {
  color: var(--sis-primary);
  background: #eff6ff;
  border-color: #bfdbfe;
}

.modal-content {
  border: 0;
  border-radius: 16px;
  box-shadow: 0 28px 70px rgba(15,23,42,.25);
  overflow: hidden;
}
.modal-header, .modal-footer { border-color: var(--sis-border); }

.alert { border-radius: 12px; border-width: 1px; }
.badge, .label { border-radius: 999px; padding: 5px 9px; font-weight: 650; }

/* Invoice editor usability */
#form .card { overflow: visible; }
#form .card-header { border-radius: var(--sis-radius) var(--sis-radius) 0 0; }
#form .invoice_items_table,
#form .table-responsive { border-radius: 12px; overflow: hidden; }
.pos-sticky { top: 58px; z-index: 7; }

/* Modern template gallery */
.templates {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
  padding: 6px 0 20px;
}
.templates:before,
.templates:after { display: none !important; }
.templates .template {
  float: none;
  margin: 0;
  padding: 10px;
  background: #fff;
  border: 1px solid var(--sis-border);
  border-radius: 16px;
  box-shadow: var(--sis-shadow-sm);
  position: relative;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.templates .template:hover {
  transform: translateY(-3px);
  border-color: #bcd0ff;
  box-shadow: var(--sis-shadow);
}
.templates .template .template-image {
  width: 100%;
  height: 300px;
  border: 0;
  border-radius: 11px;
  overflow: hidden;
  background-size: cover;
  background-position: center top;
  box-shadow: inset 0 0 0 1px rgba(15,23,42,.05);
}
.template.selected { border: 2px solid #3b82f6; padding: 9px; }
.template.selected .template-image { border: 0; }
.templates .template .template-actions {
  display: flex;
  gap: 7px;
  align-items: center;
  justify-content: center;
  bottom: 10px;
  left: 10px;
  width: calc(100% - 20px);
  padding: 10px;
  border-radius: 10px;
  background: rgba(15,23,42,.88);
  backdrop-filter: blur(8px);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .18s ease, transform .18s ease;
}
.templates .template:hover .template-actions { display: flex; opacity: 1; transform: translateY(0); }
.templates .template .template-actions .btn { flex: 1; margin: 0; }
.templates .template .template-title {
  text-align: left;
  margin: 12px 4px 2px;
  font-size: 15px;
  font-weight: 700;
  color: var(--sis-text);
}
.template-meta { margin: 0 4px 4px; color: var(--sis-muted); font-size: 12px; }
.template-status {
  position: absolute;
  top: 18px;
  right: 18px;
  z-index: 2;
  background: #16a34a;
  color: #fff;
  border-radius: 999px;
  padding: 5px 9px;
  font-size: 11px;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(22,163,74,.25);
}
.template-create .template-image {
  background: radial-gradient(circle at top right, #dbeafe 0, #eef2ff 32%, #fff 70%);
  display: flex;
  align-items: center;
  justify-content: center;
}
.template-create-icon {
  width: 72px;
  height: 72px;
  line-height: 72px;
  text-align: center;
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 12px 30px rgba(37,99,235,.16);
  color: #2563eb;
  font-size: 30px;
}

@media (max-width: 900px) {
  .breadcrumb { margin: 12px 10px; padding: 12px; }
  .container-fluid { padding-left: 10px; padding-right: 10px; }
  .templates { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px; }
  .templates .template .template-image { height: 250px; }
  .pos-sticky { top: 48px; }
}

@media (max-width: 560px) {
  .templates { grid-template-columns: 1fr; }
  .templates .template .template-image { height: 390px; }
  .templates .template .template-actions { opacity: 1; transform: none; }
}