:root {
  --bg-1: #071b2d;
  --bg-2: #0f3550;
  --bg-3: #164f6f;
  --surface: rgba(237, 248, 255, 0.92);
  --text: #0c2437;
  --accent: #0e7bb4;
  --accent-dark: #0a5a85;
  --border: rgba(152, 212, 238, 0.8);
  --orbit: rgba(157, 221, 255, 0.45);
  --glow: rgba(93, 196, 255, 0.35);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Trebuchet MS", Verdana, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 14%, rgba(186, 235, 255, 0.22) 0%, transparent 42%),
    radial-gradient(circle at 78% 85%, rgba(115, 203, 255, 0.2) 0%, transparent 50%),
    linear-gradient(145deg, var(--bg-1), var(--bg-2) 56%, var(--bg-3));
  display: flex;
  flex-direction: column;
}

.page {
  flex: 1;
  display: grid;
  place-items: center;
  padding: 2.5rem 1rem;
}

.hero {
  width: min(780px, 100%);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 2rem 2rem 2.2rem;
  box-shadow:
    0 20px 52px rgba(3, 21, 37, 0.45),
    0 0 0 1px rgba(226, 247, 255, 0.2) inset;
}

.hero-top {
  display: flex;
  align-items: center;
  gap: 0.95rem;
  margin-bottom: 0.6rem;
}

.eyebrow {
  margin: 0;
  font-size: 0.84rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #346887;
  font-weight: 700;
}

.globe-mark {
  position: relative;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 32% 30%, #9be2ff 0%, #55bce8 30%, #2f88b5 65%, #1c5f88 100%);
  box-shadow:
    0 0 0 2px rgba(255, 255, 255, 0.6) inset,
    0 0 0 1px rgba(15, 74, 108, 0.55),
    0 0 20px 6px var(--glow);
  overflow: hidden;
}

.globe-mark::before,
.globe-mark::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  pointer-events: none;
}

.globe-mark::before {
  background:
    linear-gradient(90deg, transparent 22%, rgba(220, 245, 255, 0.5) 50%, transparent 78%),
    repeating-linear-gradient(
      180deg,
      transparent 0 8px,
      rgba(213, 242, 255, 0.36) 8px 9px
    );
}

.globe-mark::after {
  border: 1px solid rgba(229, 250, 255, 0.55);
  transform: scaleX(0.56);
}

.ring {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 88px;
  height: 32px;
  border: 1px solid var(--orbit);
  border-radius: 50%;
  transform-origin: center;
}

.ring-a {
  transform: translate(-50%, -50%) rotate(12deg);
}

.ring-b {
  transform: translate(-50%, -50%) rotate(-20deg);
}

.ring-c {
  width: 95px;
  height: 36px;
  transform: translate(-50%, -50%) rotate(88deg);
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 4.4vw, 3.2rem);
  line-height: 1.05;
  letter-spacing: 0.01em;
}

p {
  font-size: 1.05rem;
  line-height: 1.72;
}

.cta {
  display: inline-block;
  margin-top: 0.65rem;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  padding: 0.82rem 1.3rem;
  border-radius: 999px;
  transition: background 160ms ease, transform 160ms ease;
  box-shadow: 0 10px 25px rgba(10, 88, 129, 0.35);
}

.cta:hover,
.cta:focus-visible {
  background: var(--accent-dark);
  transform: translateY(-1px);
}

.footer {
  text-align: center;
  padding: 1rem 1rem 1.2rem;
}

.license-link {
  border: none;
  background: none;
  color: #d8f3ff;
  text-decoration: underline;
  cursor: pointer;
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(16, 14, 10, 0.55);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal.open {
  display: flex;
}

.modal-card {
  position: relative;
  width: min(560px, 100%);
  background: #f8fcff;
  border-radius: 12px;
  padding: 1.3rem 1.5rem;
  border: 1px solid #cbeaf8;
}

.modal-card p {
  margin: 0;
  line-height: 1.6;
}

.modal-card a {
  color: var(--accent);
}

.modal-close {
  position: absolute;
  top: 0.45rem;
  right: 0.5rem;
  border: none;
  background: none;
  font-size: 1.2rem;
  cursor: pointer;
}

@media (max-width: 620px) {
  .hero {
    padding: 1.55rem 1.1rem 1.7rem;
  }

  .hero-top {
    gap: 0.75rem;
  }

  .globe-mark {
    width: 48px;
    height: 48px;
  }

  .ring {
    width: 77px;
    height: 28px;
  }

  .ring-c {
    width: 84px;
    height: 31px;
  }
}