/* ============================================================
   MR GST Billing — v4.1 Final  (Bootstrap 5.3 + CDN)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ─── Variables ─────────────────────────────────────────────── */
:root {
  --sw: 250px;
  --hh: 58px;
  --bg: #f1f5f9;
  --white: #ffffff;
  --sidebar-bg: #1e293b;
  --sidebar-active: #3b82f6;
  --sidebar-text: #94a3b8;
  --sidebar-hover: rgba(255,255,255,.06);
  --blue: #3b82f6;
  --blue-d: #1d4ed8;
  --blue-lt: #eff6ff;
  --green: #10b981;
  --green-lt: #ecfdf5;
  --red: #ef4444;
  --red-lt: #fef2f2;
  --amber: #f59e0b;
  --amber-lt: #fffbeb;
  --violet: #8b5cf6;
  --text: #0f172a;
  --text-2: #64748b;
  --text-3: #94a3b8;
  --border: #e2e8f0;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(0,0,0,.06), 0 4px 12px rgba(0,0,0,.04);
  --shadow-lg: 0 8px 25px rgba(0,0,0,.10);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

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

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

/* ─── Sidebar ───────────────────────────────────────────────── */
.left-panel {
  width: var(--sw);
  background: var(--sidebar-bg);
  position: fixed; top: 0; left: 0;
  height: 100vh;
  display: flex; flex-direction: column;
  overflow-y: auto; overflow-x: hidden;
  z-index: 1050;
  transition: transform .25s ease;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,.1) transparent;
}
.left-panel::-webkit-scrollbar { width: 3px; }
.left-panel::-webkit-scrollbar-thumb { background: rgba(255,255,255,.1); border-radius: 3px; }

.sidebar-brand {
  display: flex; align-items: center; gap: 10px;
  padding: 16px 16px 14px;
  border-bottom: 1px solid rgba(255,255,255,.07);
  flex-shrink: 0;
}
.sidebar-brand-icon {
  width: 34px; height: 34px; border-radius: 8px;
  background: var(--blue); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; flex-shrink: 0;
}
.sidebar-brand-name { color: #f8fafc; font-size: 13.5px; font-weight: 700; line-height: 1.2; }
.sidebar-brand-sub  { color: var(--sidebar-text); font-size: 10px; text-transform: uppercase; letter-spacing: .07em; }

.sidebar-nav { padding: 8px 10px; flex: 1; }

.nav-section-label {
  color: #475569; font-size: 9px; font-weight: 700;
  text-transform: uppercase; letter-spacing: .1em;
  padding: 14px 8px 5px; display: block;
}

.sidebar-nav .nav-link {
  color: var(--sidebar-text) !important;
  border-radius: 7px;
  padding: 7px 10px;
  font-size: 13px; font-weight: 500;
  display: flex; align-items: center; gap: 8px;
  transition: all .15s; margin-bottom: 1px;
  text-decoration: none !important;
}
.sidebar-nav .nav-link:hover  { background: var(--sidebar-hover); color: #e2e8f0 !important; }
.sidebar-nav .nav-link.active { background: var(--blue) !important; color: #fff !important; }
.sidebar-nav .nav-link i      { width: 16px; text-align: center; opacity: .9; }

.secure-badge {
  margin: 6px 10px 14px;
  padding: 6px 10px;
  background: rgba(16,185,129,.1);
  border: 1px solid rgba(16,185,129,.2);
  border-radius: 7px;
  color: #34d399; font-size: 10.5px; font-weight: 600;
  display: flex; align-items: center; gap: 5px;
}

/* ─── Right Panel ───────────────────────────────────────────── */
.right-panel {
  margin-left: var(--sw);
  flex: 1; display: flex; flex-direction: column;
  min-height: 100vh;
}

/* ─── Top Bar ───────────────────────────────────────────────── */
.top-header {
  height: var(--hh);
  background: var(--white);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  position: sticky; top: 0; z-index: 900;
  box-shadow: 0 1px 3px rgba(0,0,0,.05);
}
.header-left { display: flex; align-items: center; gap: 10px; }
.header-company { font-size: 14px; font-weight: 700; color: var(--text); }
.header-right { display: flex; align-items: center; gap: 8px; }

.user-chip {
  display: flex; align-items: center; gap: 8px;
  padding: 5px 10px;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 8px;
}
.user-avatar {
  width: 28px; height: 28px; border-radius: 7px;
  background: linear-gradient(135deg, var(--blue), var(--violet));
  color: #fff; font-size: 11px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.user-name { font-size: 12.5px; font-weight: 600; color: var(--text); line-height: 1; }
.user-role { font-size: 10.5px; color: var(--text-3); }

/* ─── Page Header Bar ───────────────────────────────────────── */
.page-header-bar {
  display: flex; align-items: flex-start;
  justify-content: space-between;
  padding: 18px 20px 0;
  flex-wrap: wrap; gap: 10px;
}
.page-title {
  font-size: 20px !important; font-weight: 800 !important;
  letter-spacing: -.03em; color: var(--text) !important;
  margin: 0 0 3px !important;
}

/* ─── Content Area ──────────────────────────────────────────── */
.content-area { padding: 16px 20px 32px; flex: 1; }

/* ─── Cards ─────────────────────────────────────────────────── */
.card {
  border: 1px solid var(--border) !important;
  border-radius: var(--radius) !important;
  box-shadow: var(--shadow) !important;
  background: var(--white) !important;
  margin-bottom: 18px;
  overflow: hidden;
}
.card-header {
  background: var(--white) !important;
  border-bottom: 1px solid var(--border) !important;
  padding: 12px 16px !important;
  font-size: 13px !important; font-weight: 600 !important;
  color: var(--text) !important;
  display: flex; align-items: center; gap: 7px;
}
.card-body { padding: 16px !important; }

/* ─── Stat Cards ────────────────────────────────────────────── */
.stat-card {
  border-radius: var(--radius) !important;
  padding: 16px !important;
  text-decoration: none; display: block;
  transition: transform .15s, box-shadow .15s;
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg) !important; }
.stat-icon { width: 40px; height: 40px; border-radius: 9px; display: flex; align-items: center; justify-content: center; font-size: 17px; margin-bottom: 12px; }
.stat-value { font-size: 20px; font-weight: 800; letter-spacing: -.04em; line-height: 1.1; margin-bottom: 3px; }
.stat-label { font-size: 10.5px; font-weight: 600; text-transform: uppercase; letter-spacing: .07em; opacity: .65; }
.stat-sub { margin-top: 10px; padding-top: 10px; border-top: 1px solid rgba(0,0,0,.07); font-size: 11px; display: flex; align-items: center; gap: 4px; }

.stat-blue  { background: var(--blue-lt) !important;  color: var(--blue-d) !important; border-color: #bfdbfe !important; }
.stat-green { background: var(--green-lt) !important; color: #065f46 !important; border-color: #6ee7b7 !important; }
.stat-red   { background: var(--red-lt) !important;   color: #991b1b !important; border-color: #fca5a5 !important; }
.stat-amber { background: var(--amber-lt) !important; color: #92400e !important; border-color: #fcd34d !important; }
.stat-blue .stat-icon  { background: var(--blue);  color: #fff; }
.stat-green .stat-icon { background: var(--green); color: #fff; }
.stat-red .stat-icon   { background: var(--red);   color: #fff; }
.stat-amber .stat-icon { background: var(--amber); color: #fff; }

/* ─── Tables ────────────────────────────────────────────────── */
.table { font-size: 13px !important; color: var(--text) !important; margin: 0 !important; }
.table thead th {
  background: #f8fafc; color: var(--text-2);
  font-size: 10.5px !important; font-weight: 700 !important;
  text-transform: uppercase !important; letter-spacing: .06em !important;
  border-bottom: 1px solid var(--border) !important;
  padding: 10px 12px !important; white-space: nowrap;
}
/* Invoice items table — blue header overrides grey default */
#itemsTable thead th { background: #1e40af !important; color: #fff !important; }
.table tbody td { padding: 9px 12px; vertical-align: middle !important; border-color: var(--border) !important; }
/* Invoice items table — compact rows so inputs fit neatly */
#itemsTable tbody td { padding: 3px 4px !important; }
.table-hover tbody tr:hover td { background: #f0f9ff !important; }

/* ─── Buttons ───────────────────────────────────────────────── */
.btn { font-family: var(--font) !important; font-weight: 600 !important; font-size: 13px !important; border-radius: 7px !important; transition: all .15s !important; }
.btn-primary   { background: var(--blue) !important;  border-color: var(--blue) !important;  box-shadow: 0 2px 5px rgba(59,130,246,.3) !important; }
.btn-primary:hover { background: var(--blue-d) !important; border-color: var(--blue-d) !important; transform: translateY(-1px); }
.btn-success   { background: var(--green) !important; border-color: var(--green) !important; }
.btn-success:hover { background: #059669 !important; }
.btn-warning   { background: var(--amber) !important; border-color: var(--amber) !important; color: #fff !important; }
.btn-warning:hover { background: #d97706 !important; color: #fff !important; }
.btn-danger    { background: var(--red) !important;   border-color: var(--red) !important; }
.btn-danger:hover  { background: #dc2626 !important; }
.btn-secondary { background: #64748b !important; border-color: #64748b !important; color: #fff !important; }
.btn-sm { font-size: 11.5px !important; padding: 4px 10px !important; border-radius: 6px !important; }
.btn-xs { font-size: 11px !important; padding: 3px 8px !important; border-radius: 5px !important; }

/* ─── Forms ─────────────────────────────────────────────────── */
.form-control, .form-select {
  font-family: var(--font) !important; font-size: 13.5px !important;
  border: 1.5px solid var(--border) !important; border-radius: 7px !important;
  background: #f8fafc !important; color: var(--text) !important;
  transition: border-color .15s, box-shadow .15s !important; padding: 7px 10px !important;
}
/* sm variant — must override the padding above */
.form-control-sm, .form-select-sm {
  font-size: 12px !important; padding: 3px 6px !important;
  border-radius: 5px !important; min-height: unset !important;
}
.form-control:focus, .form-select:focus {
  border-color: var(--blue) !important; background: #fff !important;
  box-shadow: 0 0 0 3px rgba(59,130,246,.1) !important; outline: none !important;
}
/* Read-only calc fields in invoice table */
.form-control[readonly] { background: #f1f5f9 !important; cursor: default; }
.form-label { font-size: 12px !important; font-weight: 600 !important; color: var(--text-2) !important; margin-bottom: 4px !important; }
.form-text  { font-size: 11px !important; color: var(--text-3) !important; }
.input-group-text {
  background: #f1f5f9 !important; border: 1.5px solid var(--border) !important;
  font-size: 13px !important; color: var(--text-2) !important;
}

/* ─── Alerts ────────────────────────────────────────────────── */
.alert { border-radius: 9px !important; font-size: 13px !important; font-weight: 500 !important; border: none !important; }
.alert-success { background: var(--green-lt) !important; color: #065f46 !important; border-left: 4px solid var(--green) !important; }
.alert-danger  { background: var(--red-lt) !important;   color: #991b1b !important; border-left: 4px solid var(--red) !important; }
.alert-warning { background: var(--amber-lt) !important; color: #92400e !important; border-left: 4px solid var(--amber) !important; }
.alert-info    { background: var(--blue-lt) !important;  color: #1e40af !important; border-left: 4px solid var(--blue) !important; }

/* ─── Badges ────────────────────────────────────────────────── */
.role-admin { background: rgba(59,130,246,.12) !important; color: var(--blue-d) !important; font-size: 10px !important; font-weight: 700 !important; padding: 3px 8px !important; border-radius: 20px !important; }
.role-ca    { background: rgba(139,92,246,.12) !important; color: #6d28d9 !important;    font-size: 10px !important; font-weight: 700 !important; padding: 3px 8px !important; border-radius: 20px !important; }

/* ─── Nav Tabs ──────────────────────────────────────────────── */
.nav-tabs { border-bottom: 2px solid var(--border) !important; }
.nav-tabs .nav-link { color: var(--text-2) !important; border: none !important; padding: 9px 16px !important; font-weight: 600 !important; font-size: 13px !important; border-bottom: 2px solid transparent !important; margin-bottom: -2px; border-radius: 0 !important; }
.nav-tabs .nav-link:hover { color: var(--blue) !important; background: none !important; }
.nav-tabs .nav-link.active { color: var(--blue) !important; border-bottom-color: var(--blue) !important; }

/* ─── Breadcrumb ────────────────────────────────────────────── */
.breadcrumb { margin: 0 !important; padding: 0 !important; background: none !important; }
.breadcrumb-item { font-size: 12px !important; }
.breadcrumb-item a { color: var(--blue); text-decoration: none; }
.breadcrumb-item.active { color: var(--text-3); }
.breadcrumb-item + .breadcrumb-item::before { color: var(--text-3); }

/* ─── Footer ────────────────────────────────────────────────── */
.app-footer { padding: 12px 20px; border-top: 1px solid var(--border); background: var(--white); text-align: center; font-size: 11.5px; color: var(--text-3); }

/* ─── Datepicker Fix (Bootstrap 5) ──────────────────────────── */
.datepicker { z-index: 9999 !important; font-family: var(--font) !important; }
.datepicker table tr td, .datepicker table tr th { padding: 5px !important; }
.datepicker table tr td.active, .datepicker table tr td.active:hover { background: var(--blue) !important; border-color: var(--blue) !important; color:#fff !important; }
.datepicker table tr td.today { background: var(--blue-lt) !important; }
/* Override Bootstrap table CSS inside datepicker popup */
.datepicker table thead th { background: var(--blue) !important; color: #fff !important; padding: 5px !important; font-size: 12px !important; text-transform: none !important; letter-spacing: 0 !important; }
.datepicker table tbody td { padding: 4px !important; }

/* ─── Select2 height fix (matches .form-control height) ─────── */
.select2-container--bootstrap-5 .select2-selection {
  min-height: 38px !important; border: 1.5px solid var(--border) !important;
  border-radius: 7px !important; background: #f8fafc !important;
  font-family: var(--font) !important; font-size: 13.5px !important;
}
.select2-container--bootstrap-5.select2-container--focus .select2-selection,
.select2-container--bootstrap-5.select2-container--open .select2-selection {
  border-color: var(--blue) !important;
  box-shadow: 0 0 0 3px rgba(59,130,246,.1) !important;
}
.select2-container--bootstrap-5 .select2-dropdown {
  border: 1.5px solid var(--border) !important; border-radius: 7px !important;
  font-family: var(--font) !important; font-size: 13px !important; z-index: 9999 !important;
}
.select2-container--bootstrap-5 .select2-results__option--highlighted {
  background: var(--blue) !important;
}

/* ─── DataTables ────────────────────────────────────────────── */
.dataTables_wrapper .dataTables_filter input,
.dataTables_wrapper .dataTables_length select {
  border: 1.5px solid var(--border) !important; border-radius: 6px !important;
  font-size: 13px !important; padding: 5px 8px !important; font-family: var(--font) !important;
}
.dataTables_wrapper { padding: 0 !important; }
div.dataTables_wrapper div.dataTables_filter,
div.dataTables_wrapper div.dataTables_length { padding: 10px 12px; }
.page-link { color: var(--blue) !important; }
.page-item.active .page-link { background: var(--blue) !important; border-color: var(--blue) !important; }

/* ─── Password Strength ─────────────────────────────────────── */
.pw-bar { height: 4px; border-radius: 4px; background: var(--border); overflow: hidden; margin-top: 4px; }
.pw-bar .fill { height: 100%; border-radius: 4px; transition: width .3s, background .3s; width: 0; }

/* ─── Login Page ────────────────────────────────────────────── */
.login-wrap {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 60%, #0f172a 100%);
  padding: 20px;
}
.login-card {
  background: rgba(255,255,255,.97); border-radius: 18px;
  padding: 38px 34px; width: 100%; max-width: 400px;
  box-shadow: 0 24px 60px rgba(0,0,0,.4);
}
.login-icon {
  width: 56px; height: 56px; border-radius: 14px;
  background: linear-gradient(135deg, var(--blue), var(--violet));
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 14px; font-size: 22px; color: #fff;
  box-shadow: 0 6px 20px rgba(59,130,246,.4);
}
.btn-login {
  width: 100%; padding: 11px; border: none; border-radius: 9px;
  background: linear-gradient(135deg, var(--blue), var(--violet));
  color: #fff; font-weight: 700; font-size: 14px;
  box-shadow: 0 4px 14px rgba(59,130,246,.4);
  transition: all .2s; cursor: pointer; display: flex;
  align-items: center; justify-content: center; gap: 7px;
}
.btn-login:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(59,130,246,.5); }

/* ─── Responsive ────────────────────────────────────────────── */
@media (max-width: 991.98px) {
  .left-panel { transform: translateX(-100%); }
  .left-panel.show { transform: translateX(0); box-shadow: var(--shadow-lg); }
  .right-panel { margin-left: 0 !important; }
  .content-area { padding: 12px 14px 24px; }
  .page-header-bar { padding: 12px 14px 0; }
  .top-header { padding: 0 14px; }
  .user-chip .user-name, .user-chip .user-role { display: none; }
}

/* ─── Overlay for mobile sidebar ───────────────────────────── */
.sidebar-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,.4); z-index: 1040;
}
.sidebar-overlay.show { display: block; }