:root {
  color: #edf5f1;
  background: #07100d;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 10% 10%, rgba(70, 197, 143, .13), transparent 32rem),
    radial-gradient(circle at 90% 85%, rgba(44, 114, 90, .14), transparent 28rem),
    #07100d;
}

body::before {
  position: fixed;
  inset: 0;
  pointer-events: none;
  content: "";
  opacity: .32;
  background-image: linear-gradient(rgba(120, 200, 164, .03) 1px, transparent 1px), linear-gradient(90deg, rgba(120, 200, 164, .03) 1px, transparent 1px);
  background-size: 42px 42px;
}

.shell {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 500px);
  gap: clamp(3rem, 8vw, 9rem);
  align-items: center;
  width: min(1180px, calc(100% - 3rem));
  min-height: 100vh;
  margin: 0 auto;
  padding: 4rem 0;
}

.mark {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  margin-bottom: 2rem;
  border: 1px solid #58d49d;
  border-radius: 16px 6px 16px 6px;
  color: #07100d;
  background: #58d49d;
  font-weight: 900;
  font-size: 1.6rem;
  box-shadow: 0 0 50px rgba(88, 212, 157, .2);
}

.eyebrow, .success-label {
  margin: 0 0 1rem;
  color: #63dca6;
  font-size: .75rem;
  font-weight: 800;
  letter-spacing: .18em;
}

h1 {
  max-width: 690px;
  margin: 0;
  font-size: clamp(2.8rem, 6vw, 5.8rem);
  line-height: .95;
  letter-spacing: -.065em;
}

.intro {
  max-width: 580px;
  margin: 2rem 0;
  color: #9cafaa;
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  line-height: 1.7;
}

.status { color: #7f928c; font-size: .84rem; }
.status span { display: inline-block; width: 8px; height: 8px; margin-right: .5rem; border-radius: 50%; background: #58d49d; box-shadow: 0 0 14px #58d49d; }

.card {
  padding: clamp(1.5rem, 4vw, 2.7rem);
  border: 1px solid rgba(126, 174, 153, .22);
  border-radius: 24px;
  background: rgba(11, 24, 19, .88);
  box-shadow: 0 24px 80px rgba(0, 0, 0, .35);
  backdrop-filter: blur(18px);
}

.tabs { display: flex; gap: 1.5rem; margin-bottom: 2.4rem; border-bottom: 1px solid rgba(126, 174, 153, .16); }
.tabs a { padding: 0 0 1rem; color: #6f837b; text-decoration: none; font-size: .9rem; font-weight: 750; }
.tabs a.active { color: #e8f5ef; border-bottom: 2px solid #58d49d; }

h2 { margin: 0 0 .6rem; font-size: 1.8rem; letter-spacing: -.035em; }
.hint { margin: 0 0 1.8rem; color: #81958d; line-height: 1.55; }

form { display: grid; gap: 1.15rem; }
label { display: grid; gap: .5rem; color: #bdcdc6; font-size: .84rem; font-weight: 700; }
small { color: #64776f; font-size: .72rem; font-weight: 500; }

input {
  width: 100%;
  border: 1px solid rgba(126, 174, 153, .25);
  border-radius: 11px;
  outline: none;
  padding: .88rem 1rem;
  color: #eef8f4;
  background: #08130f;
  font: inherit;
  transition: border-color .18s, box-shadow .18s;
}

input:focus { border-color: #58d49d; box-shadow: 0 0 0 3px rgba(88, 212, 157, .12); }

button {
  border: 0;
  border-radius: 11px;
  margin-top: .5rem;
  padding: .95rem 1rem;
  cursor: pointer;
  color: #06100c;
  background: #58d49d;
  font: inherit;
  font-weight: 850;
  transition: transform .15s, filter .15s;
}

button:hover { filter: brightness(1.08); transform: translateY(-1px); }
button:disabled { cursor: wait; opacity: .6; transform: none; }
button.secondary { color: #dcebe5; background: #15251f; }

.message { margin: 1rem 0 0; padding: .8rem 1rem; border-radius: 10px; color: #ffc8c8; background: rgba(181, 65, 65, .14); font-size: .85rem; }
.message.success { color: #a9efcf; background: rgba(70, 180, 128, .14); }
.help-link, .back-link { display: inline-block; margin-top: 1.2rem; color: #77dbae; font-size: .85rem; }

dl { display: grid; gap: .7rem; }
dl div { display: grid; grid-template-columns: 5rem 1fr; gap: 1rem; padding: .7rem 0; border-bottom: 1px solid rgba(126, 174, 153, .13); }
dt { color: #71847c; }
dd { margin: 0; overflow-wrap: anywhere; color: #d7e6df; }

[hidden] { display: none !important; }

@media (max-width: 820px) {
  .shell { grid-template-columns: 1fr; gap: 3rem; width: min(560px, calc(100% - 2rem)); padding: 2rem 0; }
  h1 { font-size: clamp(2.7rem, 15vw, 4.5rem); }
  .brand { padding-top: 2rem; }
}