/* NexumDevOps - Modern Responsive Stylesheet & Print Rules */
:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --dark: #0f172a;
  --slate: #1e293b;
  --slate-muted: #64748b;
  --slate-subtle: #94a3b8;
  --border-color: #e2e8f0;
  --border-dark: #cbd5e1;
  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --success: #16a34a;
  --success-bg: #dcfce7;
  --warning: #d97706;
  --warning-bg: #fef3c7;
  --danger: #dc2626;
  --danger-bg: #fee2e2;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--slate);
}

body {
  background: var(--bg-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Typography & Links */
a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.15s ease;
}
a:hover {
  color: var(--primary-hover);
}

h1, h2, h3, h4, h5 {
  color: var(--dark);
  font-weight: 700;
}

/* Global Navbar */
.site-nav {
  background: #ffffff;
  border-bottom: 1px solid var(--border-color);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 50;
}
.site-nav .brand-container {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}
.site-nav .brand-logo {
  height: 44px;
  width: auto;
  object-fit: contain;
}
.site-nav .brand-title {
  font-size: 20px;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: 0.3px;
}
.site-nav .nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
  list-style: none;
}
.site-nav .nav-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--slate-muted);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
}
.site-nav .nav-link:hover, .site-nav .nav-link.active {
  color: var(--primary);
  background: var(--primary-light);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s ease;
  text-decoration: none;
}
.btn-primary {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--primary-hover);
  color: #ffffff;
}
.btn-secondary {
  background: #ffffff;
  color: var(--slate);
  border-color: var(--border-color);
}
.btn-secondary:hover {
  background: #f1f5f9;
  border-color: var(--border-dark);
}
.btn-success {
  background: var(--success);
  color: #ffffff;
  border-color: var(--success);
}
.btn-success:hover {
  background: #15803d;
  color: #ffffff;
}
.btn-danger {
  background: var(--danger-bg);
  color: var(--danger);
  border-color: #fecaca;
}
.btn-danger:hover {
  background: var(--danger);
  color: #ffffff;
}
.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 9999px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.badge-paid {
  background: var(--success-bg);
  color: var(--success);
  border: 1px solid #bbf7d0;
}
.badge-unpaid {
  background: var(--warning-bg);
  color: var(--warning);
  border: 1px solid #fde68a;
}

/* Public Hero & Landing Styles */
.landing-hero {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 24px;
  background: linear-gradient(135deg, #f8fafc 0%, #edf2f7 100%);
}
.hero-card {
  max-width: 900px;
  width: 100%;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  box-shadow: var(--shadow-lg);
  text-align: center;
}
.hero-logo-wrapper {
  margin-bottom: 28px;
}
.hero-logo {
  max-width: 320px;
  width: 100%;
  height: auto;
  object-fit: contain;
}
.hero-title {
  font-size: 34px;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}
.hero-tagline {
  font-size: 20px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 24px;
  letter-spacing: 0.2px;
}
.hero-description {
  font-size: 16px;
  line-height: 1.6;
  color: var(--slate-muted);
  max-width: 650px;
  margin: 0 auto 36px auto;
}
.hero-capabilities {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
  text-align: left;
}
.capability-box {
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  padding: 20px;
  border-radius: var(--radius-md);
}
.capability-box h3 {
  font-size: 15px;
  margin-bottom: 6px;
  color: var(--dark);
}
.capability-box p {
  font-size: 13px;
  color: var(--slate-muted);
  line-height: 1.4;
}

/* Authentication Layout */
.auth-wrapper {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
}
.auth-card {
  width: 100%;
  max-width: 440px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
}
.auth-header {
  text-align: center;
  margin-bottom: 28px;
}
.auth-logo {
  max-width: 200px;
  margin-bottom: 16px;
  object-fit: contain;
}
.auth-title {
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 6px;
}
.auth-subtitle {
  font-size: 14px;
  color: var(--slate-muted);
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--slate);
}
.form-control {
  width: 100%;
  padding: 10px 14px;
  font-size: 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: #ffffff;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

/* Admin Dashboard Layout */
.admin-container {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 32px 24px;
}
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 16px;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}
.stat-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
.stat-card .stat-label {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--slate-muted);
  margin-bottom: 8px;
}
.stat-card .stat-value {
  font-size: 28px;
  font-weight: 800;
  color: var(--dark);
}
.stat-card .stat-subtext {
  font-size: 12px;
  color: var(--slate-muted);
  margin-top: 4px;
}

.action-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  margin-bottom: 32px;
}
.action-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.action-card h3 {
  font-size: 18px;
  margin-bottom: 8px;
}
.action-card p {
  font-size: 14px;
  color: var(--slate-muted);
  line-height: 1.5;
  margin-bottom: 20px;
}

/* Card & Table Component */
.card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  margin-bottom: 32px;
  overflow: hidden;
}
.card-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--dark);
}
.card-body {
  padding: 24px;
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}
.data-table th {
  background: #f8fafc;
  padding: 12px 16px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--slate-muted);
  border-bottom: 1px solid var(--border-color);
}
.data-table td {
  padding: 14px 16px;
  font-size: 14px;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}
.data-table tr:last-child td {
  border-bottom: none;
}
.data-table tr:hover td {
  background: #f8fafc;
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}
.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}
.modal-content {
  background: #ffffff;
  border-radius: var(--radius-lg);
  max-width: 550px;
  width: 100%;
  padding: 32px;
  box-shadow: var(--shadow-lg);
  position: relative;
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}
.modal-close {
  background: transparent;
  border: none;
  font-size: 22px;
  cursor: pointer;
  color: var(--slate-muted);
  line-height: 1;
}

/* Notification Toast */
.toast-notice {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--dark);
  color: #ffffff;
  padding: 14px 22px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 14px;
  font-weight: 500;
  z-index: 200;
  display: none;
  animation: slideIn 0.3s ease;
}
.toast-notice.show {
  display: block;
}
@keyframes slideIn {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* ==========================================================================
   INVOICE SYSTEM STYLES
   ========================================================================== */
.invoice-wrapper {
  padding: 24px 20px 48px;
}
.invoice-controls-bar {
  max-width: 860px;
  margin: 0 auto 20px auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  background: #ffffff;
  padding: 16px 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}
.controls-left, .controls-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.client-select-group {
  display: flex;
  align-items: center;
  gap: 8px;
}
.client-select-group label {
  font-size: 13px;
  font-weight: 700;
  color: var(--dark);
}
.status-select-group {
  display: flex;
  align-items: center;
  gap: 8px;
}
.status-select-group label {
  font-size: 13px;
  font-weight: 700;
  color: var(--dark);
}

.invoice-card {
  max-width: 860px;
  margin: 0 auto;
  background: #ffffff;
  padding: 48px;
  border-radius: 8px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  position: relative;
}

.invoice-card .header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 40px;
  border-bottom: 2px solid var(--dark);
  padding-bottom: 24px;
}
.brand-header-flex {
  display: flex;
  align-items: flex-start;
  gap: 18px;
}
.invoice-brand-logo {
  height: 64px;
  width: auto;
  object-fit: contain;
}
.invoice-card .brand h1 {
  font-size: 24px;
  font-weight: 800;
  color: var(--dark);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.invoice-card .brand p {
  font-size: 13px;
  color: var(--slate-muted);
  margin-top: 4px;
  line-height: 1.4;
}

.invoice-card .inv-title {
  text-align: right;
}
.invoice-card .inv-title h2 {
  font-size: 28px;
  font-weight: 900;
  color: var(--primary);
  margin-bottom: 6px;
}
.invoice-card .inv-title p {
  font-size: 13px;
  color: #475569;
  margin-top: 4px;
}

.details-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-bottom: 36px;
}
.details-box h3 {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--slate-subtle);
  margin-bottom: 8px;
}
.details-box p {
  font-size: 14px;
  line-height: 1.5;
}

/* Interactive Editable Elements in Invoice */
.editable-input {
  border: 1px solid transparent;
  border-radius: 4px;
  padding: 2px 4px;
  font-size: inherit;
  font-family: inherit;
  font-weight: inherit;
  color: inherit;
  background: transparent;
  transition: all 0.15s ease;
}
.editable-input:hover {
  background: #f1f5f9;
  border-color: var(--border-color);
}
.editable-input:focus {
  background: #ffffff;
  border-color: var(--primary);
  outline: none;
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15);
}

.invoice-items-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
}
.invoice-items-table th {
  background: #f1f5f9;
  text-align: left;
  padding: 12px 14px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  color: #334155;
  border-bottom: 2px solid var(--border-dark);
}
.invoice-items-table td {
  padding: 16px 14px;
  font-size: 13px;
  border-bottom: 1px solid var(--border-color);
  vertical-align: top;
}
.text-right {
  text-align: right;
}
.text-center {
  text-align: center;
}

.item-desc-title {
  font-weight: 700;
  width: 100%;
  margin-bottom: 4px;
}
.item-desc-details {
  width: 100%;
  font-size: 11px;
  color: var(--slate-muted);
  line-height: 1.5;
  resize: vertical;
  min-height: 60px;
}

.btn-remove-item {
  background: transparent;
  border: none;
  color: var(--slate-subtle);
  font-size: 16px;
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  line-height: 1;
  transition: color 0.15s ease;
}
.btn-remove-item:hover {
  color: var(--danger);
  background: var(--danger-bg);
}

.totals-area {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 40px;
}
.totals-table {
  width: 300px;
  border-collapse: collapse;
}
.totals-table tr td {
  padding: 8px 0;
  border: none;
  font-size: 14px;
}
.totals-table tr.total-row td {
  border-top: 2px solid var(--dark);
  padding-top: 12px;
  font-size: 16px;
  font-weight: 800;
  color: var(--dark);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
}
.banking-box {
  background: var(--bg-main);
  padding: 16px 20px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
}
.banking-box h4 {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--dark);
  margin-bottom: 10px;
}
.banking-box p {
  font-size: 12px;
  line-height: 1.6;
  color: #334155;
}
.terms-box p {
  font-size: 11px;
  line-height: 1.5;
  color: var(--slate-muted);
}

/* Site Footer */
.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--border-color);
  background: #ffffff;
  padding: 20px 24px;
  text-align: center;
  font-size: 13px;
  color: var(--slate-muted);
}

/* ==========================================================================
   PRINT STYLING (Dedicated for Executive PDF Rendering)
   ========================================================================== */
@media print {
  @page {
    margin: 12mm 15mm 15mm 15mm;
    size: A4 portrait;
  }
  
  html, body {
    background: #ffffff !important;
    padding: 0 !important;
    margin: 0 !important;
    min-height: auto !important;
    font-size: 12pt;
    color: #0f172a !important;
  }
  
  /* Suppress all control UI, navigation bars, buttons, and badges */
  .no-print,
  .site-nav,
  .site-footer,
  .invoice-controls-bar,
  .btn,
  .btn-remove-item,
  .add-item-row,
  .modal-overlay,
  .toast-notice {
    display: none !important;
  }
  
  .invoice-wrapper {
    padding: 0 !important;
    margin: 0 !important;
  }
  
  .invoice-card {
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
    margin: 0 !important;
    max-width: 100% !important;
    width: 100% !important;
  }

  /* Make editable inputs and textareas look like pure executive print document */
  .editable-input, 
  input.editable-input, 
  textarea.editable-input, 
  select.editable-input {
    border: none !important;
    outline: none !important;
    box-shadow: none !important;
    background: transparent !important;
    padding: 0 !important;
    resize: none !important;
    color: #0f172a !important;
    -webkit-appearance: none;
    appearance: none;
  }
  
  /* Retain pristine header line */
  .invoice-card .header {
    border-bottom: 2px solid #0f172a !important;
    padding-bottom: 20px !important;
    margin-bottom: 30px !important;
  }
  
  .invoice-brand-logo {
    max-height: 60px !important;
  }
  
  .totals-table tr.total-row td {
    border-top: 2px solid #0f172a !important;
  }
  
  .footer-grid {
    border-top: 1px solid #cbd5e1 !important;
  }
  
  .banking-box {
    background: #f8fafc !important;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
}