/* ═══════════════════════════════════════════════════════════════
   SystexRecall — Crystalline Blue Theme
   Design: Arctic Professional · Light Blue · Navy Sidebar
   ═══════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700&family=Plus+Jakarta+Sans:wght@400;500;600&display=swap');

/* ── CSS Variables ────────────────────────────────────────────── */
:root {
  /* Core palette */
  --bg-page:          #EEF5FB;
  --bg-card:          #FFFFFF;
  --bg-topbar:        #FFFFFF;

  /* Sidebar */
  --sidebar-bg:       #0B2458;
  --sidebar-hover:    rgba(255,255,255,0.10);
  --sidebar-active:   rgba(255,255,255,0.18);
  --sidebar-text:     rgba(255,255,255,0.80);
  --sidebar-text-active: #FFFFFF;
  --sidebar-border:   rgba(255,255,255,0.08);
  --sidebar-width:    240px;

  /* Brand & primary */
  --blue-50:   #EFF6FF;
  --blue-100:  #DBEAFE;
  --blue-200:  #BFDBFE;
  --blue-500:  #3B82F6;
  --blue-600:  #2563EB;
  --blue-700:  #1D4ED8;
  --blue-900:  #1E3A8A;

  --color-primary:     #2563EB;
  --color-primary-dk:  #1D4ED8;
  --color-accent:      #38BDF8;

  /* Semantic */
  --color-success:     #059669;
  --color-success-bg:  #D1FAE5;
  --color-warning:     #D97706;
  --color-warning-bg:  #FEF3C7;
  --color-danger:      #DC2626;
  --color-danger-bg:   #FEE2E2;
  --color-info:        #0284C7;
  --color-info-bg:     #E0F2FE;

  /* Text */
  --text-primary:    #1E293B;
  --text-secondary:  #475569;
  --text-muted:      #94A3B8;

  /* Borders & shadows */
  --border-color:    #E2E8F0;
  --border-blue:     #BFDBFE;
  --shadow-sm:       0 1px 3px rgba(15,40,100,0.07), 0 1px 2px rgba(15,40,100,0.04);
  --shadow-md:       0 4px 12px rgba(15,40,100,0.10), 0 2px 6px rgba(15,40,100,0.06);
  --shadow-lg:       0 10px 32px rgba(15,40,100,0.13), 0 4px 12px rgba(15,40,100,0.07);

  /* Radii */
  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  16px;

  /* Fonts */
  --font-display: 'Outfit', sans-serif;
  --font-body:    'Plus Jakarta Sans', sans-serif;
}

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

html { font-size: 15px; scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 0.933rem;
  color: var(--text-primary);
  background: var(--bg-page);
  margin: 0;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--text-primary);
}

/* ═══════════════════════════════════════════════════════════════
   BACKEND LAYOUT — Sidebar + Content
   ═══════════════════════════════════════════════════════════════ */

.sr-wrapper {
  display: flex;
  min-height: 100vh;
}

/* ── Sidebar ──────────────────────────────────────────────────── */
.sr-sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  background: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 1000;
  overflow-y: auto;
  overflow-x: hidden;
  transition: width 0.25s ease;
}

.sr-sidebar::-webkit-scrollbar { width: 4px; }
.sr-sidebar::-webkit-scrollbar-track { background: transparent; }
.sr-sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 2px; }

/* Logo / Brand */
.sr-sidebar-brand {
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--sidebar-border);
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.sr-sidebar-brand-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--blue-500) 0%, var(--color-accent) 100%);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(56,189,248,0.4);
}

.sr-sidebar-brand-text {
  display: flex;
  flex-direction: column;
}

.sr-sidebar-brand-title {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  color: #FFFFFF;
  line-height: 1.2;
  letter-spacing: 0.01em;
}

.sr-sidebar-brand-sub {
  font-size: 0.65rem;
  color: rgba(255,255,255,0.45);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-top: 1px;
}

/* Nav sections */
.sr-sidebar-nav {
  flex: 1;
  padding: 12px 0 20px;
}

.sr-nav-section-label {
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.30);
  padding: 16px 20px 6px;
}

.sr-nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 20px;
  text-decoration: none;
  color: var(--sidebar-text);
  font-size: 0.873rem;
  font-weight: 500;
  border-left: 3px solid transparent;
  transition: all 0.15s ease;
  margin: 1px 0;
  position: relative;
}

.sr-nav-item:hover {
  background: var(--sidebar-hover);
  color: var(--sidebar-text-active);
  text-decoration: none;
}

.sr-nav-item.active {
  background: var(--sidebar-active);
  color: var(--sidebar-text-active);
  border-left-color: var(--color-accent);
}

.sr-nav-item .bi {
  font-size: 0.967rem;
  width: 18px;
  text-align: center;
  flex-shrink: 0;
  opacity: 0.8;
}

.sr-nav-item.active .bi,
.sr-nav-item:hover .bi {
  opacity: 1;
}

/* Sidebar footer */
.sr-sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--sidebar-border);
  font-size: 0.8rem;
  color: rgba(255,255,255,0.35);
}

/* ── Main Content Area ────────────────────────────────────────── */
.sr-main {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* Top bar */
.sr-topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-topbar);
  border-bottom: 1px solid var(--border-color);
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
}

.sr-topbar-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sr-topbar-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.sr-topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.sr-topbar-user {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sr-user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-600) 0%, var(--color-accent) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 0.8rem;
  font-weight: 600;
  font-family: var(--font-display);
  flex-shrink: 0;
}

.sr-user-name {
  font-size: 0.853rem;
  font-weight: 500;
  color: var(--text-secondary);
}

/* Page content */
.sr-content {
  flex: 1;
  padding: 24px;
}

/* ── Page header (replaces bare <h4>) ─────────────────────────── */
.sr-page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.sr-page-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

/* ═══════════════════════════════════════════════════════════════
   FRONTEND LAYOUT — Top Navbar
   ═══════════════════════════════════════════════════════════════ */

.sr-frontend-nav {
  background: var(--bg-topbar);
  border-bottom: 1px solid var(--border-blue);
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 1px 6px rgba(37,99,235,0.08);
  position: sticky;
  top: 0;
  z-index: 100;
}

.sr-frontend-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.sr-frontend-brand-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--blue-600) 0%, var(--color-accent) 100%);
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  color: #fff;
  box-shadow: 0 2px 6px rgba(37,99,235,0.3);
}

.sr-frontend-brand-title {
  font-family: var(--font-display);
  font-size: 0.967rem;
  font-weight: 700;
  color: var(--text-primary);
}

.sr-frontend-nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.sr-frontend-content {
  padding: 24px;
  max-width: 960px;
  margin: 0 auto;
}

/* ═══════════════════════════════════════════════════════════════
   CARDS
   ═══════════════════════════════════════════════════════════════ */

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease;
}

.card:hover { box-shadow: var(--shadow-md); }

.card-body { padding: 16px 20px; }
.card-header {
  padding: 12px 20px;
  background: var(--blue-50);
  border-bottom: 1px solid var(--border-color);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-primary);
}

/* Stat cards (Dashboard) */
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
}
.stat-card.sc-total::before  { background: linear-gradient(90deg, var(--blue-500), var(--color-accent)); }
.stat-card.sc-pending::before { background: linear-gradient(90deg, var(--color-warning), #FBBF24); }
.stat-card.sc-processing::before { background: linear-gradient(90deg, var(--color-primary), var(--blue-500)); }
.stat-card.sc-closed::before  { background: linear-gradient(90deg, #475569, #64748B); }
.stat-card.sc-customers::before { background: linear-gradient(90deg, var(--color-info), var(--color-accent)); }
.stat-card.sc-overdue::before  { background: linear-gradient(90deg, var(--color-danger), #F87171); }

.stat-card-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.stat-card-value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--text-primary);
}

.stat-card-icon {
  position: absolute;
  top: 50%; right: 16px;
  transform: translateY(-50%);
  font-size: 2rem;
  opacity: 0.08;
  color: var(--sidebar-bg);
}

/* ═══════════════════════════════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════════════════════════════ */

.btn {
  font-family: var(--font-body);
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
  letter-spacing: 0.01em;
}

.btn-primary {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}
.btn-primary:hover, .btn-primary:focus {
  background: var(--color-primary-dk);
  border-color: var(--color-primary-dk);
  color: #fff;
  box-shadow: 0 3px 10px rgba(37,99,235,0.35);
}

.btn-outline-primary {
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline-primary:hover {
  background: var(--blue-50);
  color: var(--color-primary-dk);
  border-color: var(--color-primary-dk);
}

.btn-outline-secondary {
  color: var(--text-secondary);
  border-color: var(--border-color);
  background: var(--bg-card);
}
.btn-outline-secondary:hover {
  background: var(--bg-page);
  color: var(--text-primary);
  border-color: #CBD5E1;
}

.btn:focus, .btn:active:focus,
.form-control:focus, .form-select:focus, .form-check-input:focus {
  box-shadow: 0 0 0 3px rgba(37,99,235,0.18);
}

/* ═══════════════════════════════════════════════════════════════
   FORMS
   ═══════════════════════════════════════════════════════════════ */

.form-control, .form-select {
  border-color: var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-body);
  background-color: var(--bg-card);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-control:focus, .form-select:focus {
  border-color: var(--blue-500);
  background-color: var(--bg-card);
  color: var(--text-primary);
}

.form-label {
  font-weight: 500;
  font-size: 0.853rem;
  color: var(--text-secondary);
  margin-bottom: 5px;
}

/* ═══════════════════════════════════════════════════════════════
   TABLES
   ═══════════════════════════════════════════════════════════════ */

.table {
  font-size: 0.867rem;
  color: var(--text-primary);
  margin-bottom: 0;
}

.table thead th {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.733rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: var(--blue-50);
  border-bottom: 1px solid var(--border-blue);
  padding: 10px 12px;
  white-space: nowrap;
}

.table tbody td {
  padding: 10px 12px;
  vertical-align: middle;
  border-bottom: 1px solid #F1F5F9;
}

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

.table tbody tr {
  transition: background 0.1s ease;
}

.table tbody tr:hover {
  background: #F8FAFF;
}

.table-responsive {
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  box-shadow: var(--shadow-sm);
}

/* ═══════════════════════════════════════════════════════════════
   BADGES & STATUS
   ═══════════════════════════════════════════════════════════════ */

.badge {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  padding: 3px 8px;
  border-radius: 4px;
}

/* Remap Bootstrap badge colors */
.badge.bg-secondary   { background: #E2E8F0 !important; color: #475569 !important; }
.badge.bg-primary     { background: var(--blue-100) !important; color: var(--blue-700) !important; }
.badge.bg-success     { background: var(--color-success-bg) !important; color: var(--color-success) !important; }
.badge.bg-warning     { background: var(--color-warning-bg) !important; color: var(--color-warning) !important; }
.badge.bg-danger      { background: var(--color-danger-bg) !important; color: var(--color-danger) !important; }
.badge.bg-dark        { background: #1E293B !important; color: #CBD5E1 !important; }
.badge.bg-info        { background: var(--color-info-bg) !important; color: var(--color-info) !important; }
.badge.text-dark      { color: var(--text-primary) !important; }

/* ═══════════════════════════════════════════════════════════════
   ALERTS
   ═══════════════════════════════════════════════════════════════ */

.alert {
  border-radius: var(--radius-sm);
  border: none;
  font-size: 0.867rem;
}

.alert-success {
  background: var(--color-success-bg);
  color: #065F46;
  border-left: 3px solid var(--color-success);
}

.alert-danger {
  background: var(--color-danger-bg);
  color: #991B1B;
  border-left: 3px solid var(--color-danger);
}

.alert-warning {
  background: var(--color-warning-bg);
  color: #92400E;
  border-left: 3px solid var(--color-warning);
}

.alert-info {
  background: var(--color-info-bg);
  color: #075985;
  border-left: 3px solid var(--color-info);
}

/* ═══════════════════════════════════════════════════════════════
   NAV TABS
   ═══════════════════════════════════════════════════════════════ */

.nav-tabs {
  border-bottom: 2px solid var(--border-color);
  gap: 4px;
}

.nav-tabs .nav-link {
  font-family: var(--font-display);
  font-size: 0.853rem;
  font-weight: 500;
  color: var(--text-secondary);
  border: none;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  padding: 8px 14px;
  margin-bottom: -2px;
  transition: all 0.15s;
}

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

.nav-tabs .nav-link.active {
  color: var(--color-primary);
  background: var(--bg-card);
  border-bottom: 2px solid var(--color-primary);
  font-weight: 600;
}

/* ═══════════════════════════════════════════════════════════════
   PAGINATION
   ═══════════════════════════════════════════════════════════════ */

.pagination .page-link {
  border-color: var(--border-color);
  color: var(--text-secondary);
  font-size: 0.833rem;
  border-radius: var(--radius-sm);
  margin: 0 2px;
}

.pagination .page-link:hover {
  background: var(--blue-50);
  color: var(--color-primary);
  border-color: var(--border-blue);
}

.pagination .page-item.active .page-link {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

/* ═══════════════════════════════════════════════════════════════
   MISC COMPONENTS
   ═══════════════════════════════════════════════════════════════ */

/* Breadcrumb */
.breadcrumb {
  font-size: 0.8rem;
  margin: 0;
  background: none;
  padding: 0;
}

.breadcrumb-item + .breadcrumb-item::before { color: var(--text-muted); }
.breadcrumb-item a { color: var(--color-primary); text-decoration: none; }
.breadcrumb-item.active { color: var(--text-muted); }

/* Dropdown menus */
.dropdown-menu {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  font-size: 0.867rem;
  padding: 4px;
}

.dropdown-item {
  border-radius: 4px;
  padding: 6px 10px;
  color: var(--text-secondary);
}

.dropdown-item:hover {
  background: var(--blue-50);
  color: var(--color-primary);
}

/* Modal */
.modal-content {
  border: none;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.modal-header {
  border-bottom: 1px solid var(--border-color);
  padding: 16px 20px;
  background: var(--blue-50);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.modal-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
}

.modal-footer {
  border-top: 1px solid var(--border-color);
  padding: 12px 20px;
}

/* Scrollbar (webkit) */
::-webkit-scrollbar { width: 7px; height: 7px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: #CBD5E1;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover { background: #94A3B8; }

/* ═══════════════════════════════════════════════════════════════
   UTILITY HELPERS
   ═══════════════════════════════════════════════════════════════ */

/* 清單列 hover 淡底色（客戶/工程師選擇器用） */
.hover-bg:hover { background-color: #f1f5ff; }

.text-primary-brand { color: var(--color-primary); }
.bg-blue-subtle     { background: var(--blue-50); }
.border-blue        { border-color: var(--border-blue) !important; }

/* Override Bootstrap .container-fluid padding */
.sr-content > .container-fluid,
.sr-content > .container { padding: 0; }

/* Spacing helpers */
.sr-section-gap { margin-bottom: 24px; }

/* Override bg-light to match theme */
.bg-light { background-color: var(--bg-page) !important; }

/* Loading spinner overlay */
.sr-loading {
  display: flex; align-items: center; justify-content: center;
  min-height: 120px;
  color: var(--text-muted);
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════ */

@media (max-width: 992px) {
  :root { --sidebar-width: 200px; }

  .sr-topbar-title { font-size: 0.9rem; }
  .sr-content { padding: 16px; }
}

@media (max-width: 768px) {
  .sr-sidebar { display: none; }
  .sr-main { margin-left: 0; }
  .sr-content { padding: 12px; }
  .sr-topbar { padding: 0 16px; }
}

/* ── Frontend Mobile ─────────────────────────────────────────── */
@media (max-width: 767px) {
  .sr-frontend-nav { padding: 0 12px; height: 52px; }
  .sr-frontend-brand-title { font-size: 0.8rem; }
  .sr-frontend-content { padding: 12px; }

  /* 觸控友善：最小點擊高度 44px */
  .btn { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; }
  .btn-sm { min-height: 36px; }
}

@media (max-width: 480px) {
  .sr-frontend-brand-title { display: none; }
  .sr-frontend-content { padding: 10px 10px; }
}

/* ═══════════════════════════════════════════════════════════════
   PAGE ENTER ANIMATION
   ═══════════════════════════════════════════════════════════════ */

/* 純 opacity 淡入，不使用 transform —— 避免動畫結束後 .sr-content > *
   仍保留 transform: matrix(...) 而建立 stacking context，導致 .dropdown-menu
   被困在子樹內、被後續的 <table> 等元素覆蓋。 */
@keyframes srFadeUp {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.sr-content > * {
  animation: srFadeUp 0.22s ease both;
}

.sr-content > *:nth-child(1) { animation-delay: 0.00s; }
.sr-content > *:nth-child(2) { animation-delay: 0.04s; }
.sr-content > *:nth-child(3) { animation-delay: 0.08s; }
.sr-content > *:nth-child(4) { animation-delay: 0.12s; }
.sr-content > *:nth-child(5) { animation-delay: 0.16s; }

/* Dashboard stat cards stagger */
.stat-card { animation: srFadeUp 0.28s ease both; }
.stat-card:nth-child(1) { animation-delay: 0.05s; }
.stat-card:nth-child(2) { animation-delay: 0.10s; }
.stat-card:nth-child(3) { animation-delay: 0.15s; }
.stat-card:nth-child(4) { animation-delay: 0.20s; }
.stat-card:nth-child(5) { animation-delay: 0.25s; }