:root {
  --navy: #05101a;
  --navy-2: #071827;
  --navy-3: #0b2132;
  --steel: #808b96;
  --steel-light: #c6d0da;
  --white: #ffffff;
  --cyan: #4af2f2;
  --electric: #00ced1;
  --line: rgba(128, 139, 150, 0.24);
  --panel: rgba(7, 24, 39, 0.74);
  --max: 1180px;
  --radius: 8px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, Arial, Helvetica, sans-serif;
  background: var(--navy);
  color: var(--steel-light);
  line-height: 1.6;
}
a { color: inherit; }
.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 20;
  background: var(--cyan);
  color: var(--navy);
  padding: 10px 14px;
}
.skip-link:focus { top: 12px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 18px clamp(18px, 4vw, 56px);
  background: rgba(5, 16, 26, 0.84);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}
.brand img { display: block; width: 184px; height: auto; }
.site-nav { display: flex; align-items: center; gap: 22px; font-size: 14px; z-index: 30; }
.site-nav a {
  color: rgba(198, 208, 218, 0.86);
  text-decoration: none;
}
.site-nav a:hover, .site-nav a:focus { color: var(--white); }
.nav-cta {
  border: 1px solid rgba(74, 242, 242, 0.65);
  color: var(--cyan) !important;
  padding: 8px 13px;
  border-radius: var(--radius);
}
.nav-toggle { display: none; }

.hero {
  position: relative;
  min-height: 760px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.hero-media {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(5, 16, 26, 0.95), rgba(5, 16, 26, 0.66) 48%, rgba(5, 16, 26, 0.34)),
    url("/assets/brand/bsl-hero-abstract-1600x900.png") center / cover no-repeat;
}
.hero-inner {
  position: relative;
  max-width: var(--max);
  margin: 0 auto;
  min-height: 760px;
  display: flex;
  align-items: center;
  padding: 110px 24px 96px;
}
.hero-copy { max-width: 730px; }
h1, h2, h3 {
  margin: 0;
  color: var(--white);
  line-height: 1.04;
  letter-spacing: 0;
}
h1 { font-size: clamp(48px, 7vw, 94px); max-width: 880px; }
h2 { font-size: clamp(34px, 4.4vw, 62px); }
h3 { font-size: 24px; }
p { margin: 0; }
.hero-lede {
  margin-top: 26px;
  font-size: clamp(22px, 2.2vw, 32px);
  color: var(--white);
  max-width: 820px;
}
.hero-copy > p:not(.hero-lede) {
  margin-top: 24px;
  max-width: 680px;
  font-size: 18px;
  color: rgba(198, 208, 218, 0.86);
}
.hero-actions, .contact-form .button { margin-top: 34px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border-radius: var(--radius);
  font-weight: 700;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  font-size: 15px;
}
.button.primary { background: var(--cyan); color: var(--navy); }
.button.secondary { border-color: rgba(198, 208, 218, 0.34); margin-left: 10px; }
.button:hover, .button:focus { transform: translateY(-1px); }

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(72px, 10vw, 132px) 24px;
}
.band {
  max-width: none;
  border-block: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(7, 24, 39, 0.72), rgba(5, 16, 26, 0.62));
}
.band > * { max-width: var(--max); margin-inline: auto; }
.section-grid {
  max-width: var(--max);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.78fr);
  gap: clamp(42px, 7vw, 90px);
  align-items: start;
}
.section p, .lead { color: rgba(198, 208, 218, 0.86); font-size: 18px; }
.lead { margin-top: 24px; }
.section h2 + p, .section h2 + .lead { margin-top: 22px; }
.section p + p { margin-top: 18px; }
.narrow { max-width: 900px; }
blockquote {
  margin: 42px 0 0;
  padding-left: 24px;
  border-left: 3px solid var(--cyan);
  color: var(--white);
  font-size: clamp(25px, 3vw, 38px);
  line-height: 1.18;
}

.signal-list, .policy-list, .service-list {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--line);
}
.signal-list li, .policy-list li, .service-list li {
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  color: rgba(255, 255, 255, 0.88);
}
.split-lists {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-top: 56px;
}
.split-lists > div, .module-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 28px;
}
.split-lists ul { margin: 20px 0 0; padding-left: 20px; }
.split-lists li { margin: 9px 0; }
.capability-list { border-top: 1px solid var(--line); }
.capability-list div {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  color: var(--white);
}
.capability-list span { color: var(--cyan); font-weight: 800; }
.text-link { display: inline-block; margin-top: 28px; color: var(--cyan); font-weight: 800; }

.section-heading { max-width: 850px; margin-bottom: 44px; }
.section-heading p { margin-top: 20px; }
.module-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.module-card p { margin-top: 16px; }
.module-button {
  margin-top: 22px;
  width: fit-content;
  background: rgba(74, 242, 242, 0.11);
  border-color: rgba(74, 242, 242, 0.86);
  color: var(--cyan);
  box-shadow: 0 0 0 1px rgba(74, 242, 242, 0.08);
}
.module-note {
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-size: 15px !important;
}
.module-note a { color: var(--cyan); font-weight: 800; }
.ethics { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.principles {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 42px;
}
.principles span {
  border: 1px solid rgba(74, 242, 242, 0.26);
  border-radius: var(--radius);
  padding: 10px 12px;
  color: rgba(255,255,255,.9);
  background: rgba(74, 242, 242, 0.05);
}
.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.steps li {
  min-height: 160px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  background: rgba(5, 16, 26, 0.42);
}
.steps strong { display: block; color: var(--white); margin-bottom: 12px; }
.steps span { color: rgba(198, 208, 218, 0.84); }
.faq-list { display: grid; gap: 10px; }
details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  background: rgba(7, 24, 39, 0.56);
}
summary { cursor: pointer; color: var(--white); font-weight: 750; }
details p { margin-top: 12px; font-size: 16px !important; }

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, .86fr) minmax(360px, 1fr);
  gap: clamp(42px, 7vw, 90px);
  align-items: start;
}
.contact-direct { margin-top: 24px; }
.contact-direct a { color: var(--cyan); }
.contact-form {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  background: var(--panel);
}
.form-warning {
  padding: 14px;
  border: 1px solid rgba(74, 242, 242, 0.28);
  border-radius: var(--radius);
  color: var(--white) !important;
  font-size: 14px !important;
  margin-bottom: 20px;
}
label { display: block; color: var(--white); font-weight: 700; font-size: 14px; margin-top: 16px; }
input, select, textarea {
  width: 100%;
  margin-top: 7px;
  border: 1px solid rgba(128, 139, 150, 0.36);
  border-radius: var(--radius);
  background: rgba(5, 16, 26, 0.84);
  color: var(--white);
  min-height: 44px;
  padding: 11px 12px;
  font: inherit;
}
textarea { resize: vertical; }
.check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: rgba(198, 208, 218, 0.9);
  font-weight: 500;
}
.check input { width: 18px; min-height: 18px; margin-top: 4px; }
.form-status { margin-top: 16px; font-size: 14px !important; color: var(--cyan) !important; }

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  padding: 42px clamp(18px, 4vw, 56px);
  border-top: 1px solid var(--line);
  background: #030b12;
}
.site-footer img { width: 210px; }
.site-footer p { margin-top: 12px; color: rgba(198, 208, 218, 0.76); }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 16px; justify-content: flex-end; }
.site-footer a { color: rgba(198, 208, 218, 0.86); }
.company { grid-column: 1 / -1; font-size: 14px; }

.legal-page .site-header { position: static; }
.legal-main {
  max-width: 880px;
  margin: 0 auto;
  padding: 86px 24px 120px;
}
.legal-main h1 { font-size: clamp(42px, 5vw, 68px); }
.legal-main h2 { font-size: 28px; margin-top: 44px; }
.legal-main p, .legal-main li { color: rgba(198, 208, 218, .88); }
.legal-main ul { padding-left: 20px; }

:focus-visible { outline: 2px solid var(--cyan); outline-offset: 4px; }
@media (max-width: 860px) {
  .site-header { align-items: flex-start; }
  .brand img { width: 156px; }
  .nav-toggle {
    display: inline-flex;
    border: 1px solid var(--line);
    background: transparent;
    color: var(--white);
    border-radius: var(--radius);
    padding: 8px 11px;
  }
  .site-nav {
    display: none;
    position: absolute;
    left: 18px;
    right: 18px;
    top: 70px;
    flex-direction: column;
    align-items: stretch;
    padding: 18px;
    background: #04111b;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: 0 28px 60px rgba(0, 0, 0, 0.42);
  }
  .site-nav a {
    padding: 10px 12px;
    border-radius: 6px;
  }
  .site-nav a:hover,
  .site-nav a:focus {
    background: rgba(74, 242, 242, 0.08);
  }
  .site-nav.open { display: flex; }
  .hero, .hero-inner { min-height: 720px; }
  .hero-media { background-position: 62% center; }
  .button.secondary { margin-left: 0; margin-top: 10px; }
  .hero-actions { display: grid; justify-items: start; }
  .section-grid, .contact-section, .split-lists, .module-grid, .steps { grid-template-columns: 1fr; }
  .site-footer { grid-template-columns: 1fr; }
  .site-footer nav { justify-content: flex-start; }
}