/* ============================================================================
   RPACPC — Bulk Utility page styles
   Matches the design reference in "Bulk Utility page-html/BulkUtility.dc.html"
   Integrated with RPACPC design tokens and global components.
   ============================================================================ */

.bu-page {
  font-family: 'Space Grotesk', system-ui, -apple-system, sans-serif;
  color: #0B1230;
  background: #F3F5F9;
  margin: 0;
  padding: 0;
}

.bu-sec a:not(.btn) {
  color: #3B5BFF;
  transition: color .15s ease;
}
.bu-sec a:not(.btn):hover {
  color: #2238C9;
}

.bu-sec * {
  box-sizing: border-box;
}

/* Container & Spacing */
.bu-in {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 64px;
}

.bu-sec {
  position: relative;
  overflow-x: clip;
}

/* Animations */
.rise {
  opacity: 0;
  transform: translateY(28px);
  animation: buRise .9s cubic-bezier(.2,.8,.2,1) forwards;
}
@keyframes buRise {
  to {
    opacity: 1;
    transform: none;
  }
}
.d1 { animation-delay: .1s; }
.d2 { animation-delay: .25s; }
.d3 { animation-delay: .45s; }
.d4 { animation-delay: .7s; }

.pulse {
  animation: buPulse 1.4s ease-in-out infinite;
}
@keyframes buPulse {
  50% { opacity: .35; }
}

.chip {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-family: 'Space Mono', ui-monospace, monospace;
  font-size: 12px;
  line-height: 1.4;
}

/* Tile Grid Wave Animation */
.tiles {
  display: grid;
  grid-template-columns: repeat(24, minmax(0, 1fr));
  gap: 6px;
}
.tile {
  aspect-ratio: 1;
  border-radius: 3px;
  background: #1A2452;
  animation: buFlip 8s cubic-bezier(.2,.8,.2,1) infinite;
}
@keyframes buFlip {
  0% { background: #1A2452; transform: scale(.6); }
  5% { background: var(--c); transform: scale(1.15); }
  8%, 85% { background: var(--c); transform: scale(1); }
  92%, 100% { background: #1A2452; transform: scale(.6); }
}

.prog {
  animation: buProg 8s linear infinite;
}
@keyframes buProg {
  0% { width: 0; }
  47%, 85% { width: 100%; }
  92%, 100% { width: 0; }
}

/* Hero Section */
.bu-hero-sec {
  background: #0B1230;
  color: #E6E9F5;
  padding: 56px 0 96px;
  position: relative;
}
.bu-crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  margin-bottom: 36px;
}
.bu-crumb a { color: #9AA5C8; text-decoration: none; }
.bu-crumb a:hover { color: #fff; }
.bu-crumb .sep { color: #4A5478; }
.bu-crumb .here { color: #E6E9F5; font-weight: 500; }

.bu-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: 56px;
  align-items: end;
}
.bu-hero-eyebrow {
  margin: 0 0 16px;
  font-size: 17px;
  font-weight: 600;
  color: #F5A524;
  letter-spacing: .02em;
}
.bu-h1 {
  margin: 0;
  font-size: clamp(48px, 6vw, 84px);
  line-height: 0.98;
  letter-spacing: -0.045em;
  font-weight: 600;
  color: #fff;
}
.bu-hero-sub {
  margin: 0;
  font-size: 18px;
  line-height: 1.55;
  color: #B7C0DD;
  max-width: 440px;
}
.bu-hero-btns {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.bu-btn-amber {
  background: #F5A524;
  color: #0B1230 !important;
  text-decoration: none;
  padding: 14px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15.5px;
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 14px rgba(245, 165, 36, 0.35);
  transition: all .2s ease;
}
.bu-btn-amber:hover {
  background: #E5981B;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245, 165, 36, 0.45);
}
.bu-btn-outline {
  color: #E6E9F5 !important;
  background: transparent;
  text-decoration: none;
  padding: 14px 24px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 15.5px;
  border: 1px solid #3A4675;
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all .2s ease;
}
.bu-btn-outline:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: #8EA2FF;
  color: #fff !important;
}
.bu-btn-white {
  background: #FFFFFF;
  color: #0B1230 !important;
  text-decoration: none;
  padding: 14px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15.5px;
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
  transition: all .2s ease;
}
.bu-btn-white:hover {
  background: #F3F5F9;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

/* Visualizer Card */
.bu-card-visualizer {
  margin-top: 64px;
  background: #121B42;
  border: 1px solid #222C57;
  border-radius: 12px;
  padding: 28px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}
.bu-vis-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.bu-file-badge {
  display: flex;
  align-items: center;
  gap: 12px;
}
.bu-file-name {
  font-family: 'Space Mono', monospace;
  font-size: 14px;
  color: #E6E9F5;
}
.bu-file-meta {
  font-size: 13px;
  color: #9AA5C8;
}
.bu-status-tag {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #9AA5C8;
}
.bu-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #3B5BFF;
}
.bu-progress-track {
  height: 4px;
  background: #222C57;
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 24px;
}
.bu-vis-legend {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  margin-top: 24px;
  font-size: 14px;
  color: #B7C0DD;
}
.bu-legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
}
.bu-sq {
  width: 12px;
  height: 12px;
  border-radius: 3px;
}

/* Section: Checks You Can Run */
.bu-checks-sec {
  background: #F3F5F9;
  padding: 128px 0;
}
.bu-split-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 64px;
  align-items: end;
  margin-bottom: 56px;
}
.bu-sec-eyebrow {
  margin: 0 0 16px;
  font-size: 15px;
  font-weight: 600;
  color: #3B5BFF;
  letter-spacing: .02em;
}
.bu-h2 {
  margin: 0;
  font-size: clamp(34px, 4.2vw, 56px);
  line-height: 1.04;
  letter-spacing: -0.035em;
  font-weight: 600;
  color: inherit;
}
.bu-head-lead {
  margin: 0;
  font-size: 17px;
  line-height: 1.6;
  color: #4A5478;
  max-width: 480px;
}
.bu-head-lead-dark {
  margin: 0;
  font-size: 17px;
  line-height: 1.6;
  color: #B7C0DD;
  max-width: 480px;
}

/* Table Card & Checks Table */
.bu-table-wrap {
  background: #FFFFFF;
  border: 1px solid #D5DAE7;
  border-radius: 14px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  box-shadow: 0 4px 20px -2px rgba(11, 18, 48, 0.04);
}

.bu-checks-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
  text-align: left;
}

.bu-checks-table thead th {
  padding: 16px 24px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  background: #F8FAFC;
  border-bottom: 1px solid #D5DAE7;
  color: #4A5478;
}

.bu-th-check { width: 30%; }
.bu-th-source { width: 22%; }
.bu-th-arrow { width: 56px; text-align: center; }
.bu-th-return { width: 44%; }

.bu-checks-table tbody td {
  padding: 20px 24px;
  vertical-align: middle;
  border-bottom: 1px solid #EEF0F5;
  font-size: 15px;
  color: #4A5478;
}

.bu-checks-table tbody tr:last-child td {
  border-bottom: 0;
}

.bu-checks-table tbody tr {
  transition: background .15s ease;
}

.bu-checks-table tbody tr:hover {
  background: #F8FAFC;
}

.bu-td-check strong {
  display: block;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: #0B1230;
}

.chip-col {
  background: #E1E6F5;
  color: #2238C9;
  font-weight: 600;
  font-size: 12px;
  letter-spacing: .02em;
}

.bu-td-arrow {
  text-align: center;
  padding-left: 0;
  padding-right: 0;
}

.bu-td-arrow svg {
  display: inline-block;
  vertical-align: middle;
}

.bu-td-return {
  line-height: 1.55;
  color: #4A5478;
}

.bu-table-foot {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  background: #F8FAFC;
  border-top: 1px solid #EEF0F5;
  font-size: 13px;
  color: #6A7393;
}

.bu-table-foot-icon {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

/* Section: How It Works */
.bu-how-sec {
  background: #0B1230;
  color: #E6E9F5;
  padding: 128px 0;
}
.bu-how-split {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.5fr);
  gap: 40px;
  align-items: stretch;
}
.bu-step-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.bu-step-btn {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  text-align: left;
  padding: 22px 24px;
  border-radius: 10px;
  cursor: pointer;
  min-height: 48px;
  color: #E6E9F5;
  background: transparent;
  border: 1px solid #222C57;
  font-family: inherit;
  transition: all .25s ease;
  width: 100%;
}
.bu-step-btn:hover {
  background: #0E183E;
  border-color: #313F74;
}
.bu-step-btn.active {
  background: #121B42;
  border-color: #3B5BFF;
  box-shadow: 0 8px 24px rgba(59, 91, 255, 0.15);
}
.bu-step-num {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid #3A4675;
  color: #9AA5C8;
  transition: all .25s ease;
}
.bu-step-btn.active .bu-step-num {
  background: #F5A524;
  color: #0B1230;
  border-color: #F5A524;
}
.bu-step-txt {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.bu-step-txt strong {
  font-size: 19px;
  font-weight: 600;
  color: #fff;
}
.bu-step-txt span {
  font-size: 14.5px;
  line-height: 1.5;
  color: #B7C0DD;
}

/* Interactive Preview Box */
.bu-preview-box {
  background: #F3F5F9;
  color: #0B1230;
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 440px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
}
.bu-preview-topbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 20px;
  border-bottom: 1px solid #D5DAE7;
  background: #FFFFFF;
}
.bu-mac-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #D5DAE7;
}
.bu-preview-title {
  margin-left: 12px;
  font-size: 13px;
  color: #4A5478;
  font-weight: 500;
}
.bu-preview-body {
  padding: 32px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.bu-step-content {
  display: none;
  animation: buFadeIn .3s ease;
}
.bu-step-content.active {
  display: flex;
  flex-direction: column;
  gap: 20px;
  flex: 1;
}
@keyframes buFadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

/* Dropzone UI */
.bu-dropzone {
  flex: 1;
  border: 2px dashed #A9B6DB;
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 44px 24px;
  text-align: center;
  background: #FFFFFF;
}
.bu-uploaded-chip {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 8px;
  padding: 10px 16px;
  border-radius: 8px;
  background: #E1E6F5;
  font-size: 14px;
}

/* Column Mapping UI */
.bu-mapping-card {
  background: #FFFFFF;
  border: 1px solid #D5DAE7;
  border-radius: 8px;
  overflow: hidden;
}
.bu-mapping-header {
  display: grid;
  grid-template-columns: 1fr 32px 1fr;
  gap: 12px;
  padding: 12px 20px;
  font-size: 13px;
  color: #4A5478;
  font-weight: 600;
  border-bottom: 1px solid #D5DAE7;
}
.bu-mapping-row {
  display: grid;
  grid-template-columns: 1fr 32px 1fr;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid #EEF0F5;
  align-items: center;
  font-size: 15px;
}
.bu-mapping-row:last-child {
  border-bottom: 0;
}
.bu-mapped-pill {
  display: inline-flex;
  padding: 6px 12px;
  border-radius: 6px;
  background: #E1E6F5;
  color: #2238C9;
  font-weight: 500;
  width: fit-content;
}

/* Progress Run UI */
.bu-run-card {
  background: #FFFFFF;
  border: 1px solid #D5DAE7;
  border-radius: 8px;
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.bu-run-header {
  display: flex;
  justify-content: space-between;
  font-size: 15px;
}

/* Results UI */
.bu-results-metrics {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.bu-metric-card {
  flex: 1;
  min-width: 120px;
  background: #FFFFFF;
  border: 1px solid #D5DAE7;
  border-radius: 8px;
  padding: 16px 18px;
}
.bu-metric-val {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.1;
}
.bu-metric-label {
  font-size: 13.5px;
  color: #4A5478;
  margin-top: 4px;
}
.bu-results-table {
  background: #FFFFFF;
  border: 1px solid #D5DAE7;
  border-radius: 8px;
  overflow-x: auto;
}
.bu-dl-btn {
  display: inline-flex;
  align-self: flex-start;
  align-items: center;
  gap: 10px;
  padding: 13px 22px;
  border-radius: 999px;
  background: #0B1230;
  color: #FFFFFF !important;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  cursor: pointer;
  transition: background .15s ease;
}
.bu-dl-btn:hover {
  background: #1A2452;
}

/* Section: Features */
.bu-features-sec {
  background: #F3F5F9;
  padding: 128px 0;
}
.bu-features-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}
.bu-feature-item {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 28px 24px 30px;
  background: #fff;
  border: 1px solid #D5DAE7;
  border-radius: 14px;
  box-shadow: 0 1px 2px rgba(11,18,48,.04);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.bu-feature-item:hover {
  transform: translateY(-3px);
  border-color: #B9C6F5;
  box-shadow: 0 14px 30px -14px rgba(11,18,48,.22);
}
.bu-feature-ico {
  width: 44px;
  height: 44px;
  border-radius: 11px;
  background: #E1E6F5;
  color: #3B5BFF;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
}
.bu-feature-ico svg { width: 22px; height: 22px; }
.bu-feature-item h3 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  color: #0B1230;
}
.bu-feature-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: #4A5478;
}

/* Section: Use cases */
.bu-uses-sec {
  background: #0B1230;
  color: #E6E9F5;
  padding: 128px 0;
}
/* Table Card & Use Cases Table (Dark) */
.bu-uses-table-wrap {
  background: #121B42;
  border: 1px solid #222C57;
  border-radius: 14px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
}

.bu-uses-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
  text-align: left;
}

.bu-uses-table thead th {
  padding: 16px 28px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: #9AA5C8;
  background: #0E1638;
  border-bottom: 1px solid #222C57;
}

.bu-uth-case { width: 38%; }
.bu-uth-desc { width: 62%; }

.bu-uses-table tbody td {
  padding: 24px 28px;
  vertical-align: top;
  border-bottom: 1px solid #1A2452;
}

.bu-uses-table tbody tr:last-child td {
  border-bottom: 0;
}

.bu-uses-table tbody tr {
  transition: background .15s ease;
}

.bu-uses-table tbody tr:hover {
  background: #162050;
}

.bu-utd-case strong {
  display: block;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: #FFFFFF;
  margin-bottom: 8px;
}

.bu-use-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.chip-dark {
  background: rgba(59, 91, 255, 0.16);
  border: 1px solid rgba(142, 162, 255, 0.22);
  color: #8EA2FF;
  font-size: 11px;
  font-weight: 600;
  font-family: 'Space Mono', ui-monospace, monospace;
  padding: 3px 8px;
  border-radius: 6px;
}

.bu-utd-desc {
  font-size: 16px;
  line-height: 1.6;
  color: #B7C0DD;
}

.bu-uses-table-foot {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  background: #0E1638;
  border-top: 1px solid #222C57;
  font-size: 13px;
  color: #8EA2FF;
}

.bu-uses-table-foot svg {
  flex-shrink: 0;
}

/* Section: FAQs */
.bu-faq-sec {
  background: #F3F5F9;
  padding: 128px 0;
}
.bu-faq-split {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 64px;
  align-items: start;
}
.bu-faq-list {
  border-top: 1px solid #C9CFDF;
}
.bu-faq-item {
  border-bottom: 1px solid #C9CFDF;
}
.bu-faq-q {
  width: 100%;
  background: none;
  border: 0;
  color: #0B1230;
  text-align: left;
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  font-size: 19px;
  font-weight: 600;
  cursor: pointer;
  min-height: 44px;
  font-family: inherit;
}
.bu-faq-icon {
  font-size: 26px;
  line-height: 1;
  font-weight: 300;
  color: #3B5BFF;
  transition: transform .25s ease;
  flex-shrink: 0;
}
.bu-faq-item.open .bu-faq-icon {
  transform: rotate(45deg);
}
.bu-faq-a {
  display: none;
  margin: 0;
  padding: 0 48px 28px 0;
  font-size: 16px;
  line-height: 1.65;
  color: #4A5478;
  max-width: 680px;
}
.bu-faq-item.open .bu-faq-a {
  display: block;
  animation: buFadeIn .25s ease;
}

/* Responsive adjustments */
@media (max-width: 860px) {
  .bu-in {
    padding: 0 24px;
  }
  .bu-hero-grid,
  .bu-split-head,
  .bu-how-split,
  .bu-faq-split {
    grid-template-columns: 1fr !important;
    gap: 36px;
  }
  .bu-h1 {
    font-size: 46px !important;
  }
  .bu-h2 {
    font-size: 34px !important;
  }
  .bu-table-wrap {
    border-radius: 10px;
  }
  .bu-checks-table thead th,
  .bu-checks-table tbody td {
    padding: 16px 18px;
  }
  .bu-uses-table-wrap {
    border-radius: 10px;
  }
  .bu-uses-table thead th,
  .bu-uses-table tbody td {
    padding: 16px 18px;
  }
  .tiles {
    gap: 3px;
  }
  .bu-hero-sec,
  .bu-checks-sec,
  .bu-how-sec,
  .bu-features-sec,
  .bu-uses-sec,
  .bu-faq-sec {
    padding: 80px 0;
  }
}

@media (max-width: 1100px) {
  .bu-features-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 600px) {
  .bu-features-grid { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 480px) {
  .bu-h1 {
    font-size: 38px !important;
  }
  .bu-hero-btns {
    flex-direction: column;
  }
  .bu-hero-btns .btn {
    width: 100%;
    justify-content: center;
  }
  .bu-vis-legend {
    gap: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .tile { animation: none !important; background: var(--c); }
  .prog { animation: none !important; width: 100%; }
  .pulse { animation: none !important; }
  .rise { animation: none !important; opacity: 1; transform: none; }
}