:root {
  --op-bg: #050607;
  --op-ink: #0b0f12;
  --op-panel: #0f1519;
  --op-panel-strong: #151d22;
  --op-line: rgba(180, 195, 202, 0.18);
  --op-text: #f2f6f7;
  --op-muted: #a8b4b8;
  --op-cyan: #87d7ea;
  --op-steel: #356070;
  --op-amber: #d6a85f;
}

html {
  background: var(--op-bg);
}

body {
  min-width: 320px;
  background:
    linear-gradient(180deg, rgba(53, 96, 112, 0.16) 0%, transparent 34rem),
    var(--op-bg);
  color: var(--op-text);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
}

p {
  margin: 0 !important;
}

a {
  transition: color 0.16s ease, border-color 0.16s ease, background 0.16s ease;
}

.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 30;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(5, 6, 7, 0.86);
  backdrop-filter: blur(18px);
}

.site-header .navbar {
  padding: 18px 0;
}

.site-header .navbar-brand {
  padding: 0;
}

.site-header .navbar-brand img {
  width: 174px;
  height: auto;
  filter: brightness(0) invert(1) drop-shadow(0 0 18px rgba(135, 215, 234, 0.14));
}

.site-header nav .nav-item {
  padding-left: 30px;
}

.site-header nav li a.nav-link {
  color: rgba(242, 246, 247, 0.74);
  font: 700 14px/22px Inter, "Segoe UI", Arial, sans-serif;
  letter-spacing: 0;
  text-decoration: none;
}

.site-header nav li a.nav-link.active,
.site-header nav li a.nav-link:hover {
  color: var(--op-cyan);
  border-bottom: 1px solid var(--op-cyan);
  padding-bottom: 8px;
}

.site-header .nav-link-cta {
  border: 1px solid rgba(135, 215, 234, 0.44);
  border-radius: 4px;
  color: var(--op-text) !important;
  padding: 8px 14px !important;
}

.site-header .nav-link-cta:hover {
  background: rgba(135, 215, 234, 0.1);
}

.site-header .navbar-toggler {
  border: 1px solid rgba(135, 215, 234, 0.36);
  padding: 8px 10px;
}

.site-header nav .navbar-toggler-icon {
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 32 32' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='rgba(242,246,247,0.92)' stroke-width='2' stroke-linecap='round' d='M4 8h24M4 16h24M4 24h24'/%3E%3C/svg%3E");
}

.hero-section {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  border-bottom: 1px solid var(--op-line);
}

.hero-media,
.hero-shade {
  position: absolute;
  inset: 0;
}

.hero-media {
  background:
    linear-gradient(90deg, rgba(5, 6, 7, 0.36), rgba(5, 6, 7, 0.08)),
    url("/images/hero-ai-security.png") center right / cover no-repeat;
  opacity: 0.82;
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(5, 6, 7, 0.98) 0%, rgba(5, 6, 7, 0.82) 48%, rgba(5, 6, 7, 0.34) 100%),
    linear-gradient(180deg, rgba(5, 6, 7, 0.22) 0%, rgba(5, 6, 7, 0.66) 100%),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.042) 0, rgba(255, 255, 255, 0.042) 1px, transparent 1px, transparent 7px);
}

.hero-content {
  position: relative;
  z-index: 2;
  padding-top: 128px;
  padding-bottom: 82px;
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.48fr);
  gap: 56px;
  align-items: end;
}

.hero-copy {
  max-width: 820px;
}

.eyebrow {
  color: var(--op-cyan);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  margin-bottom: 18px !important;
  text-transform: uppercase;
}

.hero-content h1 {
  color: var(--op-text);
  font-size: clamp(44px, 7vw, 88px);
  font-weight: 900;
  letter-spacing: 0;
  line-height: 0.98;
  margin-bottom: 28px !important;
}

.hero-statement {
  max-width: 760px;
  color: var(--op-muted);
  font-size: 22px;
  font-weight: 500;
  line-height: 1.58;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 36px;
}

.hero-panel {
  padding: 24px;
  border: 1px solid rgba(180, 195, 202, 0.22);
  border-radius: 6px;
  background: rgba(5, 6, 7, 0.5);
  backdrop-filter: blur(14px);
}

.panel-label {
  color: var(--op-amber);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  margin-bottom: 18px !important;
  text-transform: uppercase;
}

.panel-row {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid rgba(180, 195, 202, 0.16);
}

.panel-row span {
  color: rgba(135, 215, 234, 0.7);
  font-size: 13px;
  font-weight: 900;
  line-height: 1.45;
}

.panel-row strong {
  color: var(--op-text);
  font-size: 16px;
  font-weight: 800;
  line-height: 1.45;
}

.button-primary,
.button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 50px;
  padding: 13px 18px;
  border-radius: 4px;
  font-weight: 900;
  text-decoration: none;
}

.button-primary {
  background: var(--op-cyan);
  color: #061014;
}

.button-primary:hover {
  background: #b9effa;
  color: #061014;
}

.button-secondary {
  border: 1px solid rgba(242, 246, 247, 0.28);
  background: rgba(255, 255, 255, 0.04);
  color: var(--op-text);
}

.button-secondary:hover {
  border-color: rgba(214, 168, 95, 0.72);
  color: var(--op-text);
}

.section-band,
.platform-section {
  padding: 112px 0;
}

.section-band {
  background: var(--op-bg);
}

.section-heading {
  max-width: 780px;
  margin-bottom: 44px;
}

.section-heading.compact {
  margin-bottom: 0;
}

.section-heading h2,
.research-layout h2 {
  color: var(--op-text);
  font-size: clamp(32px, 4.2vw, 56px);
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1.04;
  margin-bottom: 18px !important;
}

.section-heading p,
.capability-card p,
.platform-item p,
.research-points p {
  color: var(--op-muted);
  font-size: 16px;
  line-height: 1.75;
}

.section-heading > p:last-child {
  max-width: 680px;
  font-size: 18px;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.capability-card {
  min-height: 330px;
  padding: 30px;
  border: 1px solid var(--op-line);
  border-radius: 6px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.052), rgba(255, 255, 255, 0.018)),
    var(--op-panel);
}

.capability-card i {
  color: var(--op-cyan);
  font-size: 28px;
  margin-bottom: 28px;
}

.capability-card h3 {
  color: var(--op-text);
  font-size: 23px;
  font-weight: 900;
  line-height: 1.22;
  margin-bottom: 18px !important;
}

.platform-section {
  border-top: 1px solid var(--op-line);
  border-bottom: 1px solid var(--op-line);
  background:
    linear-gradient(135deg, rgba(53, 96, 112, 0.2), transparent 38%),
    var(--op-ink);
}

.platform-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: start;
}

.platform-list {
  display: grid;
  gap: 14px;
}

.platform-item {
  display: grid;
  gap: 10px;
  padding: 28px;
  border: 1px solid var(--op-line);
  border-radius: 6px;
  background: rgba(5, 6, 7, 0.52);
  text-decoration: none;
}

.platform-item:hover {
  border-color: rgba(135, 215, 234, 0.72);
  background: rgba(5, 6, 7, 0.74);
}

.platform-item strong {
  color: var(--op-text);
  font-size: 34px;
  font-weight: 900;
  line-height: 1.1;
}

.platform-label {
  color: var(--op-amber);
  font-size: 13px;
  font-weight: 900;
  line-height: 1.25;
  text-transform: uppercase;
}

.research-section {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.025), transparent 100%),
    var(--op-bg);
}

.research-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.research-points {
  display: grid;
  gap: 12px;
}

.research-points p {
  padding: 16px 18px;
  border-left: 2px solid var(--op-steel);
  background: rgba(255, 255, 255, 0.035);
}

.site-footer {
  height: auto;
  padding: 42px 0;
  border-top: 1px solid var(--op-line);
  background: #030405;
  color: var(--op-muted);
  font: 400 13px/1.7 Inter, "Segoe UI", Arial, sans-serif;
}

.footer-layout {
  display: flex;
  justify-content: space-between;
  gap: 32px;
}

.footer-company {
  max-width: 560px;
}

.site-footer img {
  width: 154px;
  margin-bottom: 18px;
  filter: brightness(0) invert(1);
}

.footer-contact {
  text-align: right;
}

.footer-contact a {
  color: var(--op-text);
  text-decoration: none;
}

.footer-contact a:hover {
  color: var(--op-cyan);
}

.footer-contact span {
  color: var(--op-text);
  font-weight: 900;
  margin-right: 8px;
}

@media (max-width: 991px) {
  .site-header {
    position: sticky;
  }

  .site-header nav .nav-item {
    padding-left: 0;
  }

  .site-header .navbar-collapse {
    padding-top: 16px;
  }

  .site-header nav .navbar-nav .nav-item .nav-link {
    margin: 0 !important;
    padding: 12px 0;
  }

  .site-header .nav-link-cta {
    display: inline-flex;
    margin-top: 8px !important;
  }

  .hero-section {
    min-height: 86vh;
  }

  .hero-content {
    padding-top: 86px;
  }

  .hero-layout {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .hero-panel {
    max-width: 560px;
  }

  .platform-layout,
  .research-layout {
    grid-template-columns: 1fr;
  }

  .capability-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .section-heading.compact {
    margin-bottom: 0;
  }
}

@media (max-width: 575px) {
  .site-header .navbar-brand img {
    width: 142px;
  }

  .hero-content h1 {
    font-size: 42px;
  }

  .hero-statement,
  .section-heading > p:last-child {
    font-size: 16px;
  }

  .hero-actions {
    display: grid;
  }

  .button-primary,
  .button-secondary {
    width: 100%;
  }

  .section-band,
  .platform-section {
    padding: 76px 0;
  }

  .capability-card,
  .platform-item {
    min-height: auto;
    padding: 24px;
  }

  .capability-grid {
    grid-template-columns: 1fr;
  }

  .platform-item strong {
    font-size: 30px;
  }

  .footer-layout {
    display: grid;
  }

  .footer-contact {
    text-align: left;
  }
}