:root {
  color-scheme: dark;
  --bg: #05091d;
  --card: #0d1330;
  --gold: #fac70c;
  --ink: #f7f8ff;
  --muted: #abb2d1;
  --stroke: rgba(255, 255, 255, .13);
}

* { box-sizing: border-box; }
body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 50% -10%, rgba(250, 199, 12, .13), transparent 34rem),
    linear-gradient(155deg, #080d26, var(--bg) 58%);
  font-family: Archivo, system-ui, sans-serif;
}

.activation-shell {
  width: min(100% - 28px, 600px);
  margin: 0 auto;
  padding: clamp(28px, 7vh, 72px) 0 36px;
}

.activation-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 13px;
  margin-bottom: 22px;
  font-weight: 800;
  letter-spacing: -.02em;
}

.activation-brand img { border-radius: 50%; object-fit: cover; }
.activation-brand span { font-size: clamp(18px, 4vw, 23px); }

.activation-card {
  padding: clamp(24px, 6vw, 42px);
  border: 1px solid var(--stroke);
  border-radius: 24px;
  background: linear-gradient(155deg, rgba(18, 26, 61, .98), rgba(8, 13, 34, .98));
  box-shadow: 0 30px 90px rgba(0, 0, 0, .45), inset 0 1px 0 rgba(255, 255, 255, .07);
}

.activation-progress { display: flex; align-items: center; margin-bottom: 30px; }
.activation-progress span {
  width: 30px; height: 30px; display: grid; place-items: center; flex: 0 0 30px;
  border: 1px solid var(--stroke); border-radius: 50%; color: var(--muted); font-size: 12px; font-weight: 800;
}
.activation-progress span.active { color: #151100; border-color: var(--gold); background: var(--gold); }
.activation-progress i { height: 1px; flex: 1; background: var(--stroke); }

.activation-kicker {
  color: var(--gold); font-size: 11px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase;
}
h1 { margin: 8px 0 10px; font: 700 clamp(28px, 6vw, 38px)/1.08 Fraunces, serif; letter-spacing: -.025em; }
.activation-step > p { margin: 0 0 25px; color: var(--muted); line-height: 1.6; }
.activation-step > p strong { color: var(--ink); overflow-wrap: anywhere; }

form { display: grid; gap: 10px; }
label { margin-top: 5px; color: #d8dcf0; font-size: 13px; font-weight: 700; }
input {
  width: 100%; min-height: 52px; border: 1px solid var(--stroke); border-radius: 13px;
  padding: 13px 15px; color: var(--ink); background: rgba(2, 6, 22, .64); font: 500 16px Archivo, sans-serif; outline: none;
}
input:focus { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(250, 199, 12, .14); }
.activation-code { text-align: center; font-size: 27px; font-weight: 800; letter-spacing: .28em; padding-left: calc(15px + .28em); }

button {
  min-height: 52px; margin-top: 8px; border: 0; border-radius: 13px; padding: 13px 18px;
  color: #171300; background: var(--gold); font: 800 15px Archivo, sans-serif; cursor: pointer;
}
button:hover { filter: brightness(1.05); }
button:focus-visible { outline: 3px solid rgba(250, 199, 12, .4); outline-offset: 3px; }
button:disabled { opacity: .58; cursor: wait; }
.activation-secondary { color: var(--ink); border: 1px solid var(--stroke); background: rgba(255, 255, 255, .04); }
.activation-link { min-height: 38px; margin-top: 0; color: var(--muted); background: transparent; font-size: 13px; }
.activation-help { margin: 0 0 2px; color: var(--muted); font-size: 12px; }

.activation-alert { margin-bottom: 22px; padding: 12px 14px; border: 1px solid rgba(250, 199, 12, .3); border-radius: 12px; color: #fff1a8; background: rgba(250, 199, 12, .08); line-height: 1.45; }
.activation-alert.error { color: #ffd4d4; border-color: rgba(248, 113, 113, .4); background: rgba(248, 113, 113, .08); }
.activation-alert.success { color: #c9f9df; border-color: rgba(52, 211, 153, .35); background: rgba(52, 211, 153, .08); }
.activation-support { margin: 20px auto 0; max-width: 490px; color: var(--muted); text-align: center; font-size: 12px; line-height: 1.55; }
.activation-support strong { color: var(--ink); }
.hidden { display: none !important; }

@media (max-width: 480px) {
  .activation-shell { width: min(100% - 20px, 600px); padding-top: 18px; }
  .activation-card { border-radius: 19px; }
  .activation-brand img { width: 58px; height: 58px; }
}

@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; } }