:root {
  --aleph-black: #0b0b0d;
  --aleph-dark: #18181b;
  --aleph-gray: #71717a;
  --aleph-soft: #f4f4f5;
  --aleph-line: #e4e4e7;
  --aleph-white: #ffffff;
}

html {
  scroll-behavior: smooth;
}

body {
  color: var(--aleph-dark);
  background: var(--aleph-white);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.navbar {
  background: rgba(255, 255, 255, .92);
  border-bottom: 1px solid var(--aleph-line);
  backdrop-filter: blur(18px);
}

.navbar-brand img {
  height: 42px;
  width: auto;
}

.language-toggle .btn {
  border-radius: 999px;
  min-width: 48px;
}

.language-toggle .btn.active {
  color: var(--aleph-white);
  background: var(--aleph-black);
  border-color: var(--aleph-black);
}

.hero {
  position: relative;
  overflow: hidden;
  min-height: 92vh;
  color: var(--aleph-white);
  background:
    radial-gradient(circle at 80% 15%, rgba(255, 255, 255, .16), transparent 34%),
    linear-gradient(135deg, #050505 0%, #111113 42%, #2a2a2f 100%);
}

.hero::before {
  position: absolute;
  inset: 0;
  content: "";
  opacity: .12;
  background-image:
    linear-gradient(rgba(255, 255, 255, .35) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .35) 1px, transparent 1px);
  background-size: 48px 48px;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .5rem .9rem;
  color: #e4e4e7;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 999px;
  font-size: .86rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.hero-title {
  max-width: 860px;
  font-size: clamp(2.6rem, 6vw, 5.9rem);
  line-height: .96;
  letter-spacing: -.065em;
}

.hero-copy {
  max-width: 720px;
  color: #d4d4d8;
  font-size: clamp(1.05rem, 2vw, 1.35rem);
}

.hero-panel {
  background: rgba(255, 255, 255, .09);
  border: 1px solid rgba(255, 255, 255, .15);
  border-radius: 28px;
  box-shadow: 0 30px 90px rgba(0, 0, 0, .35);
  backdrop-filter: blur(20px);
}

.metric-card {
  min-height: 150px;
  background: rgba(255, 255, 255, .92);
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 22px;
}

.metric-card span {
  color: var(--aleph-gray);
}

.btn-aleph {
  color: var(--aleph-white);
  background: var(--aleph-black);
  border-color: var(--aleph-black);
  border-radius: 999px;
  padding: .85rem 1.25rem;
}

.btn-aleph:hover,
.btn-aleph:focus {
  color: var(--aleph-white);
  background: #2b2b30;
  border-color: #2b2b30;
}

.btn-outline-aleph {
  color: var(--aleph-white);
  border-color: rgba(255, 255, 255, .42);
  border-radius: 999px;
  padding: .85rem 1.25rem;
}

.btn-outline-aleph:hover,
.btn-outline-aleph:focus {
  color: var(--aleph-black);
  background: var(--aleph-white);
  border-color: var(--aleph-white);
}

.section-padding {
  padding: 96px 0;
}

.section-kicker {
  color: var(--aleph-gray);
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.section-title {
  max-width: 760px;
  font-size: clamp(2rem, 4vw, 3.8rem);
  line-height: 1;
  letter-spacing: -.05em;
}

.section-copy {
  max-width: 760px;
  color: #52525b;
  font-size: 1.1rem;
}

.soft-section {
  background: var(--aleph-soft);
}

.feature-card,
.solution-card,
.doc-card {
  height: 100%;
  background: var(--aleph-white);
  border: 1px solid var(--aleph-line);
  border-radius: 26px;
  box-shadow: 0 24px 70px rgba(24, 24, 27, .06);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}

.feature-card:hover,
.solution-card:hover,
.doc-card:hover {
  border-color: #c7c7ce;
  box-shadow: 0 32px 86px rgba(24, 24, 27, .12);
  transform: translateY(-4px);
}

.feature-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  color: var(--aleph-white);
  background: var(--aleph-black);
  border-radius: 50%;
  font-weight: 700;
}

.solution-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  color: var(--aleph-black);
  background: var(--aleph-soft);
  border: 1px solid var(--aleph-line);
  border-radius: 18px;
  font-size: 1.35rem;
}

.dark-band {
  color: var(--aleph-white);
  background: linear-gradient(135deg, #08080a, #1f1f23);
}

.dark-band .section-copy,
.dark-band p {
  color: #d4d4d8;
}

.doc-card .badge {
  color: var(--aleph-black);
  background: var(--aleph-soft);
  border: 1px solid var(--aleph-line);
}

.doc-actions .btn {
  border-radius: 999px;
}

.contact-card {
  background: var(--aleph-white);
  border: 1px solid var(--aleph-line);
  border-radius: 30px;
}

footer {
  color: #d4d4d8;
  background: var(--aleph-black);
}

footer img {
  max-height: 50px;
  padding: .45rem .75rem;
  background: var(--aleph-white);
  border-radius: 14px;
}

@media (max-width: 991.98px) {
  .hero {
    min-height: auto;
    padding-top: 120px;
    padding-bottom: 72px;
  }

  .section-padding {
    padding: 72px 0;
  }
}