:root {
  --ink: #f4f7fb;
  --muted: rgba(214, 222, 234, 0.62);
  --line: rgba(255, 255, 255, 0.14);
  --paper: #070b14;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  font-family: Geist, "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    var(--paper);
  background-size: 96px 96px, 96px 96px, auto;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.sky {
  position: fixed;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.starfield {
  display: block;
  width: 100%;
  height: 100%;
}

main {
  position: relative;
  z-index: 1;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: min(920px, calc(100% - 48px));
  margin: 0 auto;
  padding: 72px 0 48px;
  text-align: center;
}

.mark {
  display: block;
  width: 76px;
  height: 76px;
  margin-bottom: 28px;
  border-radius: 20px;
  object-fit: cover;
}

.intro {
  margin: 0 0 14px;
  font-size: clamp(0.98rem, 1.5vw, 1.15rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  color: rgba(244, 247, 251, 0.78);
}

h1 {
  margin: 0;
  max-width: 16em;
  font-size: clamp(2.15rem, 6.2vw, 4.75rem);
  font-weight: 600;
  letter-spacing: -0.045em;
  line-height: 1.06;
  text-wrap: balance;
}

.cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 36px;
  padding: 12px 18px 12px 20px;
  border-radius: 999px;
  background: #fff;
  color: #12151c;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.28);
  transition: transform 140ms ease, background 140ms ease;
}

.cta svg,
.mail svg {
  width: 15px;
  height: 15px;
}

.cta path,
.mail path,
.mail rect {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.cta svg {
  transition: transform 160ms ease;
}

.cta:hover {
  transform: translateY(-2px);
  background: #f3f5f8;
}

.cta:hover svg {
  transform: translateX(3px);
}

.cta:focus-visible,
.mail:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 4px;
}

.mail {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(7, 11, 20, 0.45);
  color: rgba(232, 237, 245, 0.82);
  font-size: 0.84rem;
  letter-spacing: -0.01em;
  text-decoration: none;
  transition: border-color 140ms ease, color 140ms ease;
}

.mail:hover {
  border-color: rgba(255, 255, 255, 0.32);
  color: #fff;
}

footer {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  padding: 0 0 22px;
  color: var(--muted);
  font-size: 0.75rem;
  letter-spacing: 0.01em;
}

footer p {
  margin: 0;
}

.partners {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 18px 22px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.partners img {
  display: block;
  width: auto;
  opacity: 0.88;
  filter: brightness(0) invert(1);
}

.partner-ei {
  height: 16px;
}

.partner-dpiit {
  height: 24px;
}

@media (max-width: 360px) {
  h1 {
    font-size: 1.9rem;
  }
}

@media (max-width: 720px) {
  main {
    width: min(920px, calc(100% - 32px));
    padding: 56px 0 36px;
  }

  .mark {
    width: 68px;
    height: 68px;
    margin-bottom: 22px;
    border-radius: 18px;
  }

  .cta {
    margin-top: 28px;
  }

  footer {
    width: min(1180px, calc(100% - 32px));
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding-bottom: 18px;
  }

  .partners {
    justify-content: center;
    gap: 14px 18px;
  }

  .partner-ei {
    height: 13px;
  }

  .partner-dpiit {
    height: 19px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .cta,
  .cta svg,
  .mail {
    transition: none;
  }
}