:root {
  --bg: #09131d;
  --ink: #f5ede1;
  --muted: #b8b0a5;
  --line: rgba(245, 237, 225, 0.12);
  --accent: #ff8247;
  --accent-soft: #ffb287;
  --sea: #8dd1c2;
}

* {
  box-sizing: border-box;
}

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

body {
  background:
    radial-gradient(circle at top left, rgba(141, 209, 194, 0.16), transparent 30%),
    radial-gradient(circle at 85% 10%, rgba(255, 130, 71, 0.22), transparent 26%),
    linear-gradient(180deg, #09131d 0%, #0d1824 42%, #09131d 100%);
  color: var(--ink);
  font-family: "Space Grotesk", sans-serif;
}

.success-shell {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 24px;
}

.success-panel {
  width: min(760px, 100%);
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 36px;
  background: rgba(10, 18, 28, 0.84);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.3);
}

.eyebrow,
.activation-form span {
  display: block;
  margin-bottom: 12px;
  color: var(--accent-soft);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 14px;
  font-size: clamp(2.6rem, 6vw, 5rem);
  line-height: 0.96;
  letter-spacing: -0.05em;
}

.lead,
.helper-text {
  color: var(--muted);
  line-height: 1.7;
}

.activation-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 30px 0 14px;
}

.activation-form label {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.025);
}

.activation-form input {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.025);
  color: var(--ink);
  font: inherit;
}

.activation-form input:focus {
  outline: none;
  border-color: rgba(141, 209, 194, 0.34);
  box-shadow: 0 0 0 3px rgba(141, 209, 194, 0.08);
}

.button,
.text-link {
  transition: transform 180ms ease, background 180ms ease, color 180ms ease;
}

.button {
  min-height: 54px;
  padding: 0 24px;
  border: 1px solid rgba(255, 130, 71, 0.48);
  border-radius: 999px;
  background: linear-gradient(120deg, rgba(255, 130, 71, 0.95), rgba(255, 178, 135, 0.92));
  color: #16110d;
  font-weight: 700;
  cursor: pointer;
}

.button:hover,
.text-link:hover {
  transform: translateY(-2px);
}

.text-link {
  display: inline-block;
  margin-top: 10px;
  color: var(--sea);
}

@media (max-width: 720px) {
  .success-panel {
    padding: 24px;
  }

  .activation-form {
    grid-template-columns: 1fr;
  }
}