:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #09111f;
  color: #eff6ff;
}

* { box-sizing: border-box; }

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 15% 15%, #184c62 0, transparent 27rem),
    radial-gradient(circle at 90% 82%, #3f2559 0, transparent 30rem),
    #09111f;
}

.shell {
  width: min(1040px, calc(100% - 2.5rem));
  min-height: 100vh;
  margin: auto;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 5rem;
}

.eyebrow, .section-label {
  margin: 0 0 0.8rem;
  color: #75e6d7;
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1, h2, p { margin-top: 0; }

h1 {
  margin-bottom: 1.25rem;
  font-size: clamp(3.6rem, 10vw, 7.5rem);
  line-height: 0.83;
  letter-spacing: -0.085em;
}

h2 { font-size: 1.65rem; letter-spacing: -0.045em; }

.intro { max-width: 30rem; color: #c2d4e7; font-size: 1.1rem; line-height: 1.55; }
.muted { color: #aabdd0; line-height: 1.5; }

.card {
  padding: 2.3rem;
  border: 1px solid rgb(151 201 225 / 25%);
  border-radius: 1.25rem;
  background: rgb(14 30 49 / 78%);
  box-shadow: 0 2rem 5rem rgb(0 0 0 / 25%);
  backdrop-filter: blur(16px);
}

form { display: grid; gap: 1rem; margin-top: 1.8rem; }
label { display: grid; gap: 0.45rem; color: #dceafa; font-size: 0.9rem; font-weight: 650; }

input {
  width: 100%;
  padding: 0.78rem 0.85rem;
  border: 1px solid #36516a;
  border-radius: 0.55rem;
  outline: none;
  background: #071523;
  color: inherit;
  font: inherit;
}

input:focus { border-color: #75e6d7; box-shadow: 0 0 0 3px rgb(117 230 215 / 15%); }

button {
  width: fit-content;
  padding: 0.75rem 1.1rem;
  border: 0;
  border-radius: 0.55rem;
  background: #75e6d7;
  color: #06222a;
  cursor: pointer;
  font: inherit;
  font-weight: 800;
}

button:hover { background: #a5fff3; }
button:disabled { cursor: wait; opacity: 0.65; }
button.secondary { margin-top: 1.25rem; background: #1c344d; color: #e7f2fc; }

.form-message { min-height: 1.2rem; margin: 0; color: #ffa8aa; font-size: 0.88rem; }
.account-details { display: grid; gap: 0.7rem; margin: 1.8rem 0 0; }
.account-details div { display: flex; justify-content: space-between; gap: 1rem; padding-bottom: 0.65rem; border-bottom: 1px solid rgb(151 201 225 / 18%); }
.account-details dt { color: #aabdd0; }
.account-details dd { margin: 0; font-weight: 700; }

@media (max-width: 760px) {
  .shell { grid-template-columns: 1fr; gap: 2.7rem; padding: 4rem 0; }
  h1 { font-size: clamp(3.5rem, 20vw, 5.5rem); }
}