/* Trang đăng ký — on top of site.css (tokens, header, buttons). Phone first:
   most people arrive from the QR at the door. */

body.signup { background: var(--paper-2); }
.header-site { padding: .5rem 1rem; font-size: .85rem; }

.signup-main { max-width: 560px; padding: 1.25rem 0 3rem; }
.signup-title {
  font-size: clamp(1.7rem, 1.3rem + 2vw, 2.4rem);
  margin: .5rem 0 1.25rem;
}
.muted { color: var(--muted); }
.small { font-size: .9rem; }

/* ── plans ─────────────────────────────────────────────────────────────── */
.plan-group { margin-bottom: 1.75rem; }
.group-title {
  font-size: 1rem; letter-spacing: .12em; color: var(--muted);
  margin: 0 0 .75rem;
}
.plan {
  position: relative;
  display: flex; align-items: center; gap: 1rem;
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1rem 1.1rem; margin-bottom: .75rem;
}
.plan-featured { border: 2px solid var(--red); }
.plan-main { flex: 1; min-width: 0; }
.plan h2 { font-size: 1.15rem; margin: 0 0 .15rem; }
.plan-price { margin: 0; }
.plan-price strong { font-family: var(--font-display); font-size: 1.35rem; color: var(--red); }
.plan-price span { color: var(--muted); font-size: .9rem; }
.plan-note { margin: .2rem 0 0; font-size: .88rem; color: var(--muted); line-height: 1.45; }
.plan .btn { flex: none; padding: .6rem 1.1rem; }
.plan-badge {
  position: absolute; top: -.7rem; right: 1rem;
  background: var(--red); color: #fff; border-radius: 999px;
  padding: .1rem .7rem; font-size: .75rem; font-weight: 700;
}

/* ── steps and forms ───────────────────────────────────────────────────── */
.steps { display: flex; gap: .5rem; margin: 0 0 1rem; padding: 0; list-style: none; counter-reset: step; }
.steps li {
  flex: 1; counter-increment: step; font-size: .8rem; color: var(--muted);
  border-top: 3px solid var(--paper-3); padding-top: .4rem;
}
.steps li::before { content: counter(step) '. '; }
.steps li.is-done { border-color: var(--ink-3); color: var(--ink); }
.steps li.is-current { border-color: var(--red); color: var(--ink); font-weight: 700; }

.step-title { font-size: clamp(1.4rem, 1.1rem + 1.4vw, 1.9rem); margin: .25rem 0 .75rem; }
.sub-title { font-size: 1rem; margin: 1.75rem 0 .5rem; color: var(--muted); letter-spacing: .08em; }

.form { display: grid; gap: .4rem; margin: 1rem 0; }
.form label { font-weight: 600; margin-top: .5rem; }
.form input, .claim-form input {
  font: inherit; font-size: 16px; /* no zoom on focus (iOS) */
  width: 100%; min-width: 0; padding: .8rem .9rem;
  border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--paper);
}
.form input:focus, .claim-form input:focus { outline: 2px solid var(--red); outline-offset: 1px; }
.form .btn { margin-top: 1rem; }
.btn[disabled] { opacity: .6; pointer-events: none; }
.btn-block + .btn-block { margin-top: .6rem; }
.signup-main > .btn-block { margin-top: 1.25rem; }

.notice { border-radius: var(--radius-sm); padding: .75rem .9rem; margin: .75rem 0; line-height: 1.5; }
.notice-bad { background: #fdecee; color: var(--red-dark); }
.notice-info { background: var(--paper); border: 1px solid var(--line); }
.notice-ok { background: #e8f5ec; color: #1f6b3a; }

/* ── face ──────────────────────────────────────────────────────────────── */
.tips { list-style: disc; padding-left: 1.2rem; color: var(--muted); margin-bottom: 1rem; }
.face-frame {
  display: grid; place-items: center; aspect-ratio: 3 / 4; width: min(100%, 300px); margin: 0 auto 1rem;
  border: 2px dashed var(--line); border-radius: 50% / 40%; overflow: hidden; background: var(--paper);
  color: var(--muted);
}
.face-frame img { width: 100%; height: 100%; object-fit: cover; }

/* ── paying ────────────────────────────────────────────────────────────── */
.qr { width: min(100%, 320px); margin: 0 auto .75rem; border-radius: var(--radius); background: #fff; }
.memo {
  display: grid; gap: .35rem; justify-items: center; text-align: center;
  background: var(--paper); border-radius: var(--radius); padding: .9rem; margin-bottom: 1rem;
}
.memo-code { display: flex; align-items: center; gap: .6rem; }
.memo-code strong { font-family: var(--font-display); font-size: 1.6rem; letter-spacing: .06em; color: var(--red); }
.chip {
  font: inherit; font-size: .85rem; padding: .35rem .75rem; cursor: pointer;
  border: 1px solid var(--line); border-radius: 999px; background: var(--paper-2); color: var(--ink);
}
.pay-actions { display: grid; gap: .6rem; }
.pay-actions .btn-block + .btn-block { margin-top: 0; }

.manual { background: var(--paper); border-radius: var(--radius); padding: .25rem 1rem; margin: 0 0 .75rem; }
.manual .row { display: flex; align-items: center; gap: .6rem; padding: .7rem 0; border-bottom: 1px solid var(--line); }
.manual .row:last-child { border-bottom: 0; }
.manual dt { flex: 0 0 7.5rem; color: var(--muted); font-size: .92rem; }
.manual dd { flex: 1; min-width: 0; margin: 0; font-weight: 700; overflow-wrap: anywhere; }

.claim { background: var(--paper); border-radius: var(--radius); padding: .9rem 1rem; margin-top: 1.25rem; }
.claim summary { font-weight: 700; cursor: pointer; }
.claim-form { display: flex; gap: .5rem; margin-top: .5rem; }
.claim-form .btn { flex: none; padding: .6rem 1rem; }

.result { text-align: center; background: var(--paper); border-radius: var(--radius); padding: 2rem 1.25rem; margin-top: 1rem; }
.result h2 { font-size: clamp(1.6rem, 1.2rem + 2vw, 2.2rem); margin: .75rem 0 .5rem; }
.result-mark {
  display: grid; place-items: center; width: 72px; height: 72px; margin: 0 auto; border-radius: 50%;
  font-size: 2.4rem; font-weight: 700; color: #fff;
}
.result-ok .result-mark { background: #1f8a4c; animation: pop .45s var(--ease); }
.result-ok h2 { color: #1f6b3a; }
.result-bad .result-mark { background: var(--red); }
@keyframes pop { from { transform: scale(.4); opacity: 0; } to { transform: scale(1); opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .result-ok .result-mark { animation: none; } }

/* ── dialogs ───────────────────────────────────────────────────────────── */
.sheet {
  width: min(100% - 2rem, 520px); max-height: min(90vh, 720px); overflow: auto;
  border: 0; border-radius: var(--radius); padding: 1.25rem; color: var(--ink);
}
.sheet::backdrop { background: rgba(13, 13, 15, .6); }
.sheet h2 { font-size: 1.3rem; margin: 0 0 .75rem; }
.sheet ul { list-style: disc; padding-left: 1.2rem; margin: 0 0 1rem; }
.sheet li { margin-bottom: .4rem; line-height: 1.5; font-size: .95rem; }
.sheet-foot { display: flex; gap: .6rem; justify-content: flex-end; margin-top: 1rem; }
.sheet-foot .btn { flex: 1; justify-content: center; }

.bank-group { font-size: .85rem; letter-spacing: .08em; color: var(--muted); margin: 1rem 0 .25rem; }
.banks { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .5rem; margin-top: .75rem; }
.banks a {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: .3rem;
  min-height: 70px; padding: .5rem .2rem; border: 1px solid var(--line); border-radius: var(--radius-sm);
  text-decoration: none; color: inherit; font-size: .72rem; line-height: 1.2; text-align: center;
}
.banks img { width: 100%; max-width: 70px; height: 26px; object-fit: contain; }