/* ==========================================================================
   VIOBAR — Theme tokens
   ========================================================================== */
:root {
  --vb-navy-deep: #0a0850;
  --vb-navy: #14116b;
  --vb-navy-mid: #1F1AA8;
  --vb-blue: #1F1AA8;
  --vb-blue-bright: #3d38c6;
  --vb-blue-light: #ecebfa;
  --vb-red: #B71E32;
  --vb-red-bright: #d4283f;
  --vb-red-light: #f9e8ea;
  --vb-bg: #f5f8fc;
  --vb-text: #10233f;
  --vb-text-muted: #5b6b83;
  --vb-white: #ffffff;
  --vb-radius: 14px;
  --vb-shadow: 0 10px 30px rgba(20, 17, 107, 0.08);
  --vb-shadow-lg: 0 20px 45px rgba(10, 8, 80, 0.18);
}

body {
  font-family: "Inter", "Segoe UI", sans-serif;
  color: var(--vb-text);
  background-color: var(--vb-bg);
}

h1, h2, h3, h4, .brand-font {
  font-family: "Poppins", "Inter", sans-serif;
  color: var(--vb-navy);
}

a { text-decoration: none; }

.text-muted-soft { color: var(--vb-text-muted); }

.section-pad { padding: 90px 0; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--vb-blue-bright);
  background: var(--vb-blue-light);
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 1.25rem;
}

.btn-vb-primary {
  background: linear-gradient(135deg, var(--vb-blue-bright), var(--vb-navy));
  border: none;
  color: #fff;
  font-weight: 600;
  padding: 0.75rem 1.75rem;
  border-radius: 50px;
  box-shadow: 0 8px 20px rgba(31, 26, 168, 0.35);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.btn-vb-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(31, 26, 168, 0.45);
  color: #fff;
}

.btn-vb-outline {
  background: transparent;
  border: 1.5px solid var(--vb-navy-mid);
  color: var(--vb-navy);
  font-weight: 600;
  padding: 0.75rem 1.75rem;
  border-radius: 50px;
  transition: all 0.2s ease;
}
.btn-vb-outline:hover {
  background: var(--vb-navy-mid);
  color: #fff;
}

/* ---------------- Header---------------- */
.vb-topbar {
  padding: 22px 0;
  background: transparent;
}
.vb-logo-img {
  height: 80px;
  width: auto;
}

/* ---------------- Hero ---------------- */
.vb-hero {
  background: radial-gradient(circle at 15% 20%, rgba(31, 26, 168, 0.10), transparent 45%),
              linear-gradient(180deg, var(--vb-bg) 0%, #ffffff 100%);
  padding: 60px 0 90px;
  overflow: hidden;
}
.vb-hero h1 {
  font-size: 2.85rem;
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 1.25rem;
}
.vb-hero h1 .accent { color: var(--vb-red); }
.vb-hero p.lead {
  font-size: 1.1rem;
  color: var(--vb-text-muted);
  max-width: 520px;
  margin-bottom: 2rem;
}
.vb-hero-stats {
  display: flex;
  gap: 2.5rem;
  margin-top: 3rem;
}
.vb-hero-stats .stat-num {
  font-family: "Poppins", sans-serif;
  font-weight: 700;
  font-size: 1.6rem;
  color: var(--vb-navy);
  display: block;
}
.vb-hero-stats .stat-label {
  font-size: 0.82rem;
  color: var(--vb-text-muted);
}

/* Hero video */
.vb-video-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  border-radius: var(--vb-radius);
  background: linear-gradient(135deg, var(--vb-navy) 0%, var(--vb-blue) 55%, var(--vb-blue-bright) 100%);
  box-shadow: var(--vb-shadow-lg);
  overflow: hidden;
}
.vb-video-el {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ---------------- Section headings ---------------- */
.section-title {
  font-size: 2.1rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}
.section-sub {
  color: var(--vb-text-muted);
  max-width: 620px;
  margin: 0 auto 3.5rem;
}
.section-header { text-align: center; }
.section-header .section-title::after {
  content: "";
  display: block;
  width: 56px;
  height: 4px;
  background: var(--vb-red);
  border-radius: 2px;
  margin: 0.9rem auto 1.5rem;
}
.section-header .section-title:last-child::after { margin-bottom: 0; }

/* ---------------- About strip ---------------- */
.vb-about {
  background: #fff;
}
.vb-diagram-img {
  width: 100%;
  border-radius: var(--vb-radius);
}
.vb-about-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.vb-about-list > li {
  position: relative;
  padding-left: 1.6rem;
  margin-bottom: 1rem;
  color: var(--vb-text);
  font-size: 1.02rem;
}
.vb-about-list > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--vb-blue-bright);
}
.vb-about-list ul {
  list-style: none;
  margin: 0.6rem 0 0;
  padding: 0;
}
.vb-about-list ul li {
  position: relative;
  padding-left: 1.4rem;
  margin-bottom: 0.5rem;
  color: var(--vb-text-muted);
  font-size: 0.95rem;
}
.vb-about-list ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  border: 1.5px solid var(--vb-blue-bright);
  background: transparent;
}

/* ---------------- Feature cards ---------------- */
.feature-card {
  background: #fff;
  border-radius: var(--vb-radius);
  padding: 2rem 1.6rem;
  height: 100%;
  border: 1px solid rgba(10, 38, 71, 0.06);
  box-shadow: var(--vb-shadow);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--vb-shadow-lg);
  border-color: transparent;
}
.feature-icon {
  width: 54px;
  height: 54px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--vb-blue-light), #dfe9f8);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.1rem;
  color: var(--vb-red);
  font-size: 1.4rem;
}
.feature-card h3 {
  font-size: 1.08rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.feature-card p {
  color: var(--vb-text-muted);
  font-size: 0.92rem;
  margin-bottom: 0;
}

/* ---------------- Challenges ---------------- */
.challenges {
  background: var(--vb-white);
}

/* ---------------- Use cases ---------------- */
.usecases-table-wrap {
  border-radius: var(--vb-radius);
  box-shadow: var(--vb-shadow-lg);
}
.usecases-table {
  background: #fff;
  border-radius: var(--vb-radius);
  overflow: hidden;
  margin-bottom: 0;
}
.usecases-table thead th {
  background: var(--vb-blue-light);
  color: var(--vb-navy);
  font-weight: 700;
  text-align: center;
  border-bottom-width: 1px;
}
.usecases-table td,
.usecases-table th {
  border-color: rgba(10, 38, 71, 0.08);
  padding: 0.9rem 1.1rem;
}
.usecases-table td {
  color: var(--vb-text-muted);
  font-size: 0.95rem;
}
.category-cell {
  text-align: center;
}
.category-badge {
  display: inline-block;
  background: var(--vb-navy);
  color: #fff;
  font-weight: 600;
  font-size: 0.85rem;
  padding: 0.55rem 1.1rem;
  border-radius: 50px;
  white-space: nowrap;
}

/* ---------------- Manufacturing applications ---------------- */
.app-row-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.app-row {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.app-label {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  flex: 0 0 220px;
}
.app-badge {
  display: inline-block;
  background: var(--vb-navy);
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.6rem 1.1rem;
  border-radius: 8px;
  white-space: nowrap;
}
.app-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--vb-blue-light);
  color: var(--vb-red);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}
.app-box {
  flex: 1 1 400px;
  background: #fff;
  border-left: 4px solid var(--vb-blue-bright);
  border-radius: var(--vb-radius);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--vb-shadow-lg);
}
.app-box ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.app-box li {
  position: relative;
  padding-left: 1.4rem;
  margin-bottom: 0.6rem;
  color: var(--vb-text-muted);
  font-size: 0.96rem;
}
.app-box li:last-child { margin-bottom: 0; }
.app-box li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--vb-blue-bright);
}

@media (max-width: 767.98px) {
  .app-label { flex: 0 0 auto; }
}

/* ---------------- Public sector applications ---------------- */
.public-sector-apps { background: var(--vb-bg); }
.pub-card {
  height: 100%;
  display: flex;
  flex-direction: column;
}
.pub-icon {
  background: #fff;
  border-radius: 50% 50% 0 0;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: var(--vb-red);
  box-shadow: var(--vb-shadow);
}
.pub-title {
  color: #000;
  background: var(--vb-white);
  font-weight: 700;
  font-size: 0.95rem;
  text-align: center;
  padding: 0.85rem 1rem;
}
.pub-box {
  background: #fff;
  flex: 1;
  padding: 1.25rem 1.25rem 1.5rem;
  border-radius: 0 0 var(--vb-radius) var(--vb-radius);
  box-shadow: var(--vb-shadow);
}
.pub-box ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.pub-box li {
  position: relative;
  padding-left: 1.3rem;
  margin-bottom: 0.75rem;
  color: var(--vb-text-muted);
  font-size: 0.92rem;
}
.pub-box li:last-child { margin-bottom: 0; }
.pub-box li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--vb-blue-bright);
}

/* ---------------- Supply chain & logistics applications ---------------- */
.scl-apps { background: var(--vb-bg); }
.simple-card {
  height: 100%;
  background: #fff;
  border-radius: var(--vb-radius);
  border-top: 4px solid var(--vb-blue-bright);
  box-shadow: var(--vb-shadow);
  padding: 1.75rem;
}
.simple-card-title {
  color: var(--vb-navy);
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 1rem;
}
.simple-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.simple-card li {
  position: relative;
  padding-left: 1.3rem;
  margin-bottom: 0.65rem;
  color: var(--vb-text-muted);
  font-size: 0.95rem;
}
.simple-card li:last-child { margin-bottom: 0; }
.simple-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--vb-blue-bright);
}

/* ---------------- Retail effectiveness ---------------- */
.retail-num {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--vb-red-bright);
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
}
.retail-card {
  height: 100%;
  background: #fff;
  border-radius: var(--vb-radius);
  box-shadow: var(--vb-shadow);
  padding: 1.5rem 1.5rem 1.75rem;
  text-align: center;
}
.retail-title {
  color: var(--vb-navy);
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: 0.75rem;
}
.retail-lead {
  color: var(--vb-text);
  font-weight: 500;
  font-size: 0.95rem;
  margin-bottom: 1rem;
}
.retail-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
  text-align: left;
}
.retail-card li {
  position: relative;
  padding-left: 1.3rem;
  margin-bottom: 0.6rem;
  color: var(--vb-text-muted);
  font-size: 0.9rem;
}
.retail-card li:last-child { margin-bottom: 0; }
.retail-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--vb-blue-bright);
}

/* ---------------- Healthcare applications ---------------- */
.healthcare-apps { background: var(--vb-bg); }

/* ---------------- AI & accurate data ---------------- */
.ai-section { background: #fff; }
.ai-video-wrap {
  position: relative;
  border-radius: var(--vb-radius);
  overflow: hidden;
  box-shadow: var(--vb-shadow-lg);
  line-height: 0;
}
.ai-video-el {
  width: 100%;
  max-height: 560px;
  object-fit: cover;
  display: block;
}
.ai-overlay-card {
  position: absolute;
  right: 24px;
  bottom: 24px;
  left: 24px;
  max-width: 360px;
  margin-left: auto;
  background: rgba(6, 18, 41, 0.78);
  backdrop-filter: blur(4px);
  color: #fff;
  padding: 1.5rem 1.75rem;
  border-radius: 10px;
  line-height: 1.5;
}
.ai-lead {
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: 0.75rem;
}
.ai-highlight {
  background: var(--vb-red);
  padding: 2px 6px;
  border-radius: 3px;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}
.ai-body {
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 0;
}

@media (max-width: 575.98px) {
  .ai-overlay-card {
    position: static;
    max-width: none;
    margin: 0;
    border-radius: 0;
  }
}

/* ---------------- FAQ ---------------- */
.faq-section { background: #fff; }
.faq-accordion {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.faq-item {
  border: none;
  background: transparent;
}
.faq-button {
  position: relative;
  background: var(--vb-blue-light);
  color: var(--vb-navy);
  font-weight: 700;
  font-size: 1rem;
  border-radius: 50px !important;
  padding: 1rem 1.75rem;
  box-shadow: none;
}
.faq-button:not(.collapsed) {
  background: var(--vb-blue-light);
  color: var(--vb-navy);
  box-shadow: none;
}
.faq-button:focus {
  box-shadow: none;
  border-color: transparent;
}
.faq-button::after {
  background-size: 1.1rem;
}
.faq-body {
  color: var(--vb-text-muted);
  padding: 1rem 1.75rem 0.25rem;
  font-size: 0.95rem;
}


/* ---------------- Back to top ---------------- */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 48px;
  height: 48px;
  border: none;
  border-radius: 50%;
  background: var(--vb-red-bright);
  color: #fff;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--vb-shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.25s ease, transform 0.25s ease, background 0.2s ease;
  z-index: 1000;
}
.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  background: var(--vb-red);
}

/* ---------------- Footer (copyright only) ---------------- */
.vb-footer {
  background: var(--vb-navy-deep);
  color: rgba(255, 255, 255, 0.65);
  padding: 22px 0;
  font-size: 0.88rem;
  text-align: center;
}
.vb-footer a { color: rgba(255, 255, 255, 0.85); }
.vb-footer a:hover { color: #fff; }

@media (max-width: 991.98px) {
  .vb-hero h1 { font-size: 2.2rem; }
  .vb-hero-stats { gap: 1.5rem; flex-wrap: wrap; }
  .section-pad { padding: 60px 0; }
}