* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-dark: #050b14;
  --bg-deep: #091425;
  --blue: #0d6efd;
  --blue-soft: #19b5fe;
  --text: #ffffff;
  --muted: rgba(255, 255, 255, 0.75);
  --line: rgba(255, 255, 255, 0.12);
  --card: rgba(7, 15, 28, 0.72);
}

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

.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  overflow: hidden;
  background:
    linear-gradient(rgba(3, 8, 18, 0.82), rgba(3, 8, 18, 0.88)),
    url("https://images.unsplash.com/photo-1516321318423-f06f85e504b3?auto=format&fit=crop&w=1800&q=80")
    center center / cover no-repeat;
}

.overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at top left, rgba(25, 181, 254, 0.18), transparent 35%),
    radial-gradient(circle at bottom right, rgba(13, 110, 253, 0.18), transparent 30%);
  z-index: 1;
}

.bg-lines {
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.7), transparent 85%);
}

.card {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 760px;
  text-align: center;
  padding: 56px 36px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.brand-mark {
  width: 74px;
  height: 74px;
  margin: 0 auto 22px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mark-left,
.mark-right {
  position: absolute;
  border-radius: 14px;
  display: block;
}

.mark-left {
  width: 26px;
  height: 64px;
  left: 10px;
  background: linear-gradient(180deg, #7fd7ff 0%, #0d6efd 100%);
}

.mark-right {
  width: 26px;
  height: 64px;
  right: 10px;
  background: linear-gradient(180deg, #19b5fe 0%, #0b4ea2 100%);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.32em;
  font-size: 0.82rem;
  color: #8fdcff;
  margin-bottom: 18px;
  font-weight: 600;
}

h1 {
  font-size: clamp(2.4rem, 7vw, 5rem);
  line-height: 1;
  font-weight: 800;
  letter-spacing: -0.04em;
  margin-bottom: 20px;
}

.subtitle {
  max-width: 620px;
  margin: 0 auto;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.8;
}

.divider {
  width: 110px;
  height: 4px;
  margin: 30px auto 22px;
  border-radius: 999px;
  background: linear-gradient(90deg, #0d6efd, #19b5fe);
}

.tagline {
  color: rgba(255, 255, 255, 0.86);
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

@media (max-width: 768px) {
  .card {
    padding: 42px 22px;
    border-radius: 22px;
  }

  .subtitle {
    font-size: 0.98rem;
    line-height: 1.7;
  }

  .tagline {
    font-size: 0.8rem;
    line-height: 1.8;
  }

  .brand-mark {
    width: 64px;
    height: 64px;
    margin-bottom: 18px;
  }

  .mark-left,
  .mark-right {
    height: 56px;
    width: 22px;
  }
}