.signup { display: grid; gap: 32px; padding-block: 40px 80px; align-items: start; }
.signup-aside { display: flex; flex-direction: column; gap: 16px; }
.signup-aside h1 { font-size: clamp(36px, 5vw, 56px); }
.signup-aside p { font-size: 18px; color: var(--muted); max-width: 460px; }
.signup-aside ul { list-style: none; margin: 8px 0 0; padding: 0; display: none; flex-direction: column; gap: 12px; font-size: 16px; }
.signup-aside li { display: flex; gap: 10px; }
.signup-aside li::before { content: "✓"; color: var(--accent); font-weight: 800; }

.signup-card { background: #FFFFFF; border: 1px solid var(--line); border-radius: 28px; padding: clamp(22px, 4vw, 36px); display: flex; flex-direction: column; gap: 22px; }
.step { border: 0; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 14px; }
.step legend { font-family: var(--head); font-weight: 800; font-size: 20px; letter-spacing: -0.3px; margin-bottom: 12px; padding: 0; }
.step + .step { padding-top: 20px; border-top: 1px solid var(--line); }
.field { display: flex; flex-direction: column; gap: 6px; font-size: 14px; font-weight: 700; }
.field i { font-style: normal; font-weight: 400; color: var(--muted); }
.field input, .slug-input, .pass-input {
  min-height: 52px; border-radius: 14px; border: 1.5px solid var(--line-2); background: #FFFFFF;
  padding: 0 14px; font: 400 16px var(--text); color: var(--ink); width: 100%;
}
.field input:focus, .slug-input:focus-within, .pass-input:focus-within { outline: none; border-color: var(--ink); }
.slug-input, .pass-input { display: flex; align-items: center; padding: 0 0 0 14px; overflow: hidden; }
.slug-input em { font-style: normal; color: var(--muted); white-space: nowrap; font-size: 15px; }
.slug-input input, .pass-input input { border: 0 !important; min-height: 48px; padding: 0 14px 0 2px; flex: 1; min-width: 0; }
.pass-input input { padding-left: 0; }
.pass-input button { border: 0; background: none; font: 700 14px var(--text); color: var(--muted); padding: 0 14px; min-height: 48px; cursor: pointer; }
.hint { font-size: 13px; font-weight: 400; color: var(--muted); }
.hint.ok { color: #2F6B4F; font-weight: 700; }
.hint.bad { color: #A12D20; font-weight: 700; }
.field.invalid input, .field.invalid .slug-input, .field.invalid .pass-input { border-color: #A12D20; }

.plan-picker { display: grid; gap: 10px; }
.plan-option { position: relative; cursor: pointer; }
.plan-option input { position: absolute; opacity: 0; }
.plan-option span { display: flex; flex-direction: column; gap: 2px; padding: 14px 16px 14px 48px; border-radius: 16px; border: 1.5px solid var(--line-2); position: relative; }
.plan-option span::before { content: ""; position: absolute; left: 16px; top: 50%; width: 20px; height: 20px; margin-top: -10px; border-radius: 50%; border: 2px solid var(--line-2); background: #FFFFFF; box-sizing: border-box; }
.plan-option strong { font-size: 17px; }
.plan-option small { font-size: 14px; color: var(--muted); }
.plan-option input:checked + span { border-color: var(--accent); background: #EEF2FB; }
.plan-option input:checked + span::before { border: 6px solid var(--accent); }
.plan-option input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }

.check[hidden] { display: none; }
.check { display: flex; gap: 12px; align-items: flex-start; font-size: 15px; cursor: pointer; }
.check input { width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--accent); flex: none; }
.check a { text-decoration: underline; text-underline-offset: 2px; }
.form-error { margin: 0; padding: 12px 14px; border-radius: 12px; background: #FBEAE7; color: #8E271C; font-weight: 700; font-size: 15px; }
.signup-card .btn { width: 100%; }
.signup-card .btn:disabled { opacity: .6; cursor: default; }

@media (min-width: 720px) {
  .plan-picker { grid-template-columns: 1fr; }
}
@media (min-width: 1024px) {
  .signup { grid-template-columns: minmax(0, 1fr) minmax(0, 560px); gap: 80px; padding-top: 72px; }
  .signup-aside { position: sticky; top: 120px; }
  .signup-aside ul { display: flex; }
}