/* ═══════════════════════════════════════════════════════════════════
   RISING EDGE TECHNOLOGIES — Certificate Module CSS
   Extends the global design system. Import after main.css.
   Certificate/ pages link: ../assets/css/main.css + ./certificate.css
═══════════════════════════════════════════════════════════════════ */

/* ── Google Fonts: Serif titles ─────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;600;700;900&family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400;1,600&display=swap');

/* ── Certificate module tokens ──────────────────────────────────── */
:root {
  --cert-navy: #0b1f3a;
  --cert-blue: #007bff;
  --cert-gold: #d4af37;
  --cert-gold-lt: #f0d060;
  --cert-silver: #c0c0c0;
  --cert-white: #ffffff;
  --cert-bg: #f8f6f0;

  --cert-font-serif: 'Cinzel', 'Playfair Display', Georgia, serif;
  --cert-font-body: 'Inter', 'Poppins', system-ui, sans-serif;

  --cert-radius: 12px;
  --cert-shadow: 0 8px 40px rgba(0, 0, 0, 0.18), 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* ╔══════════════════════════════════════════════════════════════╗
   ║  CERTIFICATE MODULE PAGE LAYOUT                             ║
   ╚══════════════════════════════════════════════════════════════╝ */
.cert-page {
  min-height: calc(100vh - var(--nav-height));
  background: var(--bg-page);
  padding: var(--sp-8) var(--sp-6) var(--sp-12);
}
.cert-container {
  max-width: 1200px;
  margin: 0 auto;
}
.cert-page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--sp-4);
  margin-bottom: var(--sp-8);
  flex-wrap: wrap;
}
.cert-page-title {
  font-size: var(--text-2xl);
  font-weight: var(--weight-black);
  color: var(--text-base);
  margin-bottom: var(--sp-1);
}
.cert-page-sub {
  font-size: var(--text-sm);
  color: var(--text-sub);
}
.cert-page-actions {
  display: flex;
  gap: var(--sp-3);
  flex-wrap: wrap;
  align-items: center;
}

/* ╔══════════════════════════════════════════════════════════════╗
   ║  STATS GRID                                                 ║
   ╚══════════════════════════════════════════════════════════════╝ */
.cert-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--sp-4);
  margin-bottom: var(--sp-8);
}
.cert-stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--sp-5) var(--sp-6);
  position: relative;
  overflow: hidden;
  transition: border-color var(--dur-base);
}
.cert-stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cert-gold), var(--cert-blue));
}
.cert-stat-card:hover {
  border-color: var(--border-med);
}
.cert-stat-val {
  font-size: var(--text-3xl);
  font-weight: var(--weight-black);
  color: var(--text-base);
  line-height: 1;
  margin-bottom: var(--sp-1);
}
.cert-stat-lbl {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}
.cert-stat-trend {
  font-size: var(--text-sm);
  font-weight: 600;
  margin-top: var(--sp-2);
}
.cert-stat-trend.up {
  color: var(--success);
}
.cert-stat-trend.down {
  color: var(--danger);
}

/* ╔══════════════════════════════════════════════════════════════╗
   ║  CERTIFICATES TABLE / LIST                                  ║
   ╚══════════════════════════════════════════════════════════════╝ */
.cert-table-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}
.cert-table-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-5) var(--sp-6);
  border-bottom: 1px solid var(--border);
  gap: var(--sp-4);
  flex-wrap: wrap;
}
.cert-table-title {
  font-size: var(--text-md);
  font-weight: 700;
  color: var(--text-base);
}
.cert-search-wrap {
  position: relative;
  flex: 1;
  max-width: 320px;
}
.cert-search-wrap svg {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-faint);
  pointer-events: none;
}
.cert-search-wrap .input {
  padding-left: 36px;
}
.cert-filter-row {
  display: flex;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-6);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.cert-filter-chip {
  padding: 4px 14px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  background: var(--bg-muted);
  color: var(--text-sub);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--dur-base);
}
.cert-filter-chip:hover,
.cert-filter-chip.active {
  border-color: var(--cert-gold);
  color: var(--cert-gold);
  background: rgba(212, 175, 55, 0.08);
}
.cert-data-table {
  width: 100%;
  border-collapse: collapse;
}
.cert-data-table th {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  padding: var(--sp-3) var(--sp-5);
  text-align: left;
  background: var(--bg-muted);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.cert-data-table td {
  padding: var(--sp-4) var(--sp-5);
  border-bottom: 1px solid var(--border);
  font-size: var(--text-sm);
  vertical-align: middle;
  color: var(--text-sub);
}
.cert-data-table tr:last-child td {
  border-bottom: none;
}
.cert-data-table tr:hover td {
  background: var(--bg-hover);
}
.cert-data-table .cert-num {
  font-family: 'SF Mono', Monaco, monospace;
  font-size: 0.8rem;
  color: var(--cert-gold);
  font-weight: 600;
}
.cert-candidate-cell {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}
.cert-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-700), var(--cert-blue));
  color: #fff;
  font-size: 0.75rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.cert-name {
  font-weight: 600;
  color: var(--text-base);
}
.cert-email {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Status badges */
.cert-status {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 3px 10px;
  border-radius: var(--radius-full);
}
.cert-status::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}
.cert-status-active {
  background: rgba(16, 185, 129, 0.12);
  color: var(--success);
}
.cert-status-active::before {
  background: var(--success);
}
.cert-status-revoked {
  background: rgba(239, 68, 68, 0.12);
  color: var(--danger);
}
.cert-status-revoked::before {
  background: var(--danger);
}
.cert-status-expired {
  background: rgba(245, 158, 11, 0.12);
  color: var(--warning);
}
.cert-status-expired::before {
  background: var(--warning);
}
.cert-status-pending {
  background: var(--bg-muted);
  color: var(--text-muted);
}
.cert-status-pending::before {
  background: var(--text-faint);
}

/* ╔══════════════════════════════════════════════════════════════╗
   ║  GENERATE FORM                                              ║
   ╚══════════════════════════════════════════════════════════════╝ */
.cert-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-5);
}
@media (max-width: 640px) {
  .cert-form-grid {
    grid-template-columns: 1fr;
  }
}
.cert-form-grid .span-2 {
  grid-column: span 2;
}
@media (max-width: 640px) {
  .cert-form-grid .span-2 {
    grid-column: span 1;
  }
}
.cert-form-section {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  padding-bottom: var(--sp-2);
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--sp-1);
  grid-column: span 2;
}
@media (max-width: 640px) {
  .cert-form-section {
    grid-column: span 1;
  }
}

/* ╔══════════════════════════════════════════════════════════════╗
   ║  CERTIFICATE PREVIEW SHELL                                  ║
   ╚══════════════════════════════════════════════════════════════╝ */
.cert-preview-wrap {
  background: var(--bg-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--sp-6);
  overflow: hidden;
}
.cert-preview-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--sp-4);
  flex-wrap: wrap;
  gap: var(--sp-3);
}
.cert-preview-scale {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--cert-shadow);
}

/* ╔══════════════════════════════════════════════════════════════╗
   ║  CERTIFICATE DOCUMENT ITSELF (A4 Landscape print)          ║
   ╚══════════════════════════════════════════════════════════════╝ */
.cert-doc {
  width: 1123px; /* A4 landscape at 96dpi: 297mm */
  height: 794px; /* 210mm */
  background: var(--cert-bg);
  position: relative;
  overflow: hidden;
  font-family: var(--cert-font-body);
  color: var(--cert-navy);
  flex-shrink: 0;
}
.cert-doc-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}
.cert-doc-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.06;
}
.cert-doc-border {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
}
.cert-doc-border img {
  width: 100%;
  height: 100%;
}
.cert-doc-inner {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  padding: 44px 64px 36px;
}

/* Header */
.cert-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-shrink: 0;
}
.cert-logo-block {
  display: flex;
  align-items: center;
  gap: 14px;
}
.cert-logo-img {
  height: 52px;
  width: auto;
}
.cert-logo-text {
  line-height: 1.2;
}
.cert-logo-company {
  font-family: var(--cert-font-serif);
  font-size: 15px;
  font-weight: 700;
  color: var(--cert-navy);
  letter-spacing: 0.04em;
}
.cert-logo-tagline {
  font-size: 9px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--cert-gold);
}
.cert-header-center {
  text-align: center;
  flex: 1;
}
.cert-type-label {
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--cert-blue);
  margin-bottom: 6px;
}
.cert-title {
  font-family: var(--cert-font-serif);
  font-size: 20px;
  font-weight: 900;
  color: var(--cert-navy);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  line-height: 1.2;
}
.cert-title-line {
  width: 80px;
  height: 2px;
  background: linear-gradient(90deg, var(--cert-gold), var(--cert-blue));
  margin: 8px auto 0;
  border-radius: 1px;
}
.cert-badge-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.cert-badge-img {
  width: 68px;
  height: 68px;
}
.cert-badge-label {
  font-size: 7px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--cert-gold);
}

/* Body */
.cert-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 40px;
}
.cert-presented-to {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  color: var(--cert-blue);
  margin-bottom: 10px;
}
.cert-recipient-name {
  font-family: var(--cert-font-serif);
  font-size: 46px;
  font-weight: 700;
  /* Solid navy — a gradient with background-clip:text renders as a filled box
     (hiding the name) in html2canvas/PDF export, so keep it a solid colour. */
  color: var(--cert-navy);
  line-height: 1.1;
  margin-bottom: 18px;
  letter-spacing: 0.02em;
}
.cert-for-completing {
  font-size: 11px;
  color: #4a5568;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-bottom: 10px;
}
.cert-course-name {
  font-family: var(--cert-font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--cert-blue);
  margin-bottom: 16px;
  letter-spacing: 0.03em;
}
.cert-course-decorline {
  width: 260px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cert-gold), transparent);
  margin: 0 auto 16px;
}
.cert-achievement {
  font-size: 10.5px;
  color: #4a5568;
  line-height: 1.75;
  max-width: 620px;
  margin-bottom: 18px;
}
.cert-meta-row {
  display: flex;
  gap: 32px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
.cert-meta-item {
  text-align: center;
}
.cert-meta-val {
  font-size: 11px;
  font-weight: 700;
  color: var(--cert-navy);
}
.cert-meta-lbl {
  font-size: 8px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: #718096;
}

/* Footer */
.cert-footer {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-shrink: 0;
  gap: 20px;
}
.cert-sig-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 160px;
}
.cert-sig-line {
  width: 160px;
  height: 1px;
  background: var(--cert-navy);
  margin-bottom: 4px;
  opacity: 0.4;
}
.cert-sig-name {
  font-size: 10px;
  font-weight: 700;
  color: var(--cert-navy);
  text-align: center;
}
.cert-sig-title {
  font-size: 8px;
  color: #718096;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  text-align: center;
}
.cert-seal-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.cert-seal-img {
  width: 80px;
  height: 80px;
}
.cert-seal-label {
  font-size: 7px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--cert-gold);
}
.cert-qr-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.cert-qr-box {
  width: 64px;
  height: 64px;
  background: #fff;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.cert-qr-box canvas,
.cert-qr-box img {
  width: 100%;
  height: 100%;
}
.cert-qr-label {
  font-size: 7px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #718096;
  text-align: center;
}

/* Cert footer strip */
.cert-footer-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--cert-navy);
  padding: 10px 64px;
  flex-shrink: 0;
  gap: 12px;
  flex-wrap: wrap;
}
.cert-strip-item {
  font-size: 8px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.65);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.cert-strip-item span {
  color: var(--cert-gold);
  margin-right: 4px;
}
.cert-strip-url {
  font-size: 8px;
  color: var(--cert-blue);
  letter-spacing: 0.08em;
}

/* ╔══════════════════════════════════════════════════════════════╗
   ║  VERIFY PAGE                                                ║
   ╚══════════════════════════════════════════════════════════════╝ */
.cert-verify-hero {
  text-align: center;
  padding: var(--sp-12) var(--sp-6) var(--sp-8);
  max-width: 600px;
  margin: 0 auto;
}
.cert-verify-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--sp-5);
}
.cert-verify-icon.valid {
  background: rgba(16, 185, 129, 0.12);
  color: var(--success);
}
.cert-verify-icon.invalid {
  background: rgba(239, 68, 68, 0.12);
  color: var(--danger);
}
.cert-verify-icon.revoked {
  background: rgba(245, 158, 11, 0.12);
  color: var(--warning);
}
.cert-verify-title {
  font-size: var(--text-2xl);
  font-weight: var(--weight-black);
  color: var(--text-base);
  margin-bottom: var(--sp-2);
}
.cert-verify-sub {
  color: var(--text-sub);
  font-size: var(--text-sm);
}
.cert-verify-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--sp-8);
  max-width: 620px;
  margin: 0 auto var(--sp-6);
}
.cert-detail-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: var(--sp-3) 0;
  border-bottom: 1px solid var(--border);
  gap: var(--sp-4);
}
.cert-detail-row:last-child {
  border-bottom: none;
}
.cert-detail-lbl {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-muted);
  min-width: 140px;
  flex-shrink: 0;
}
.cert-detail-val {
  font-size: var(--text-sm);
  color: var(--text-base);
  font-weight: 500;
  text-align: right;
}
.cert-detail-val.mono {
  font-family: 'SF Mono', Monaco, monospace;
  font-size: 0.8rem;
  color: var(--cert-gold);
}

/* ╔══════════════════════════════════════════════════════════════╗
   ║  DETAILS / AUDIT TAB                                        ║
   ╚══════════════════════════════════════════════════════════════╝ */
.cert-detail-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--sp-6);
  gap: 0;
}
.cert-detail-tab {
  padding: var(--sp-3) var(--sp-5);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-muted);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all var(--dur-base);
  white-space: nowrap;
}
.cert-detail-tab:hover {
  color: var(--text-base);
}
.cert-detail-tab.active {
  color: var(--cert-gold);
  border-bottom-color: var(--cert-gold);
}
.cert-detail-panel {
  display: none;
}
.cert-detail-panel.active {
  display: block;
}
.cert-audit-item {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-4);
  padding: var(--sp-4) 0;
  border-bottom: 1px solid var(--border);
}
.cert-audit-item:last-child {
  border-bottom: none;
}
.cert-audit-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 4px;
}
.cert-audit-dot.sent {
  background: var(--success);
}
.cert-audit-dot.viewed {
  background: var(--cert-blue);
}
.cert-audit-dot.download {
  background: var(--cert-gold);
}
.cert-audit-dot.verified {
  background: #a78bfa;
}
.cert-audit-dot.system {
  background: var(--text-faint);
}
.cert-audit-event {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-base);
}
.cert-audit-meta {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

/* ╔══════════════════════════════════════════════════════════════╗
   ║  PRINT STYLES                                               ║
   ╚══════════════════════════════════════════════════════════════╝ */
@media print {
  @page {
    size: A4 landscape;
    margin: 0;
  }
  body {
    background: white !important;
  }
  .g-header,
  .g-mobile-menu,
  #global-footer,
  #global-bottom-nav,
  .cert-page-header,
  .cert-preview-toolbar,
  .cert-preview-wrap > *:not(.cert-preview-scale),
  .no-print {
    display: none !important;
  }
  .cert-preview-scale {
    box-shadow: none !important;
    overflow: visible !important;
  }
  .cert-doc {
    width: 100vw;
    height: 100vh;
    box-shadow: none !important;
  }
}

/* ╔══════════════════════════════════════════════════════════════╗
   ║  RESPONSIVE                                                 ║
   ╚══════════════════════════════════════════════════════════════╝ */
@media (max-width: 768px) {
  .cert-page {
    padding: var(--sp-5) var(--sp-4) var(--sp-10);
  }
  .cert-page-header {
    flex-direction: column;
  }
  .cert-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .cert-table-head {
    flex-direction: column;
    align-items: stretch;
  }
  .cert-search-wrap {
    max-width: 100%;
  }
  .cert-data-table th:nth-child(4),
  .cert-data-table td:nth-child(4) {
    display: none;
  }
}
@media (max-width: 480px) {
  .cert-stats-grid {
    grid-template-columns: 1fr;
  }
}

/* ╔══════════════════════════════════════════════════════════════╗
   ║  PAGE UTILITIES (breadcrumb, mono, btn-danger, etc.)        ║
   ╚══════════════════════════════════════════════════════════════╝ */

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-bottom: var(--sp-2);
  flex-wrap: wrap;
}
.breadcrumb a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--dur-fast);
}
.breadcrumb a:hover {
  color: var(--primary-400);
}
.breadcrumb span:not(:last-child) {
  color: var(--text-muted);
}
.breadcrumb span:last-child {
  color: var(--text-sub);
  font-weight: 600;
}

/* Monospace value helper */
.mono {
  font-family: var(--font-mono);
  font-size: 0.8em;
  letter-spacing: 0.04em;
}

/* Danger button (not in global main.css) */
.btn-danger {
  background: var(--danger);
  color: #fff;
  border-color: var(--danger);
}
.btn-danger:hover {
  background: var(--danger-dark);
  border-color: var(--danger-dark);
}

/* Form help text */
.form-help {
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-top: var(--sp-1);
}