:root {
  --bg: #f6f7fb;
  --card: #ffffff;
  --ink: #0f172a;
  --muted: #64748b;
  --line: #e2e8f0;
  --primary: #0f766e;
  --primary-ink: #ffffff;
  --primary-soft: #ccfbf1;
  --danger: #b91c1c;
  --ok: #15803d;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(15, 23, 42, .04), 0 8px 24px rgba(15, 23, 42, .06);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "IBM Plex Sans Thai", system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 560px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

/* Brand header */
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.brand-badge {
  width: 46px;
  height: 46px;
  flex: none;
  display: block;
}
.brand h1 { font-size: 19px; margin: 0; }
.brand .sub { margin: 0; color: var(--muted); font-size: 13px; }

/* Steps */
.steps {
  list-style: none;
  display: flex;
  gap: 6px;
  padding: 0;
  margin: 0 0 16px;
}
.step {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--muted);
  border-top: 3px solid var(--line);
  padding-top: 8px;
}
.step span {
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--line);
  color: #fff;
  display: grid; place-items: center;
  font-size: 12px; font-weight: 600;
  flex: none;
}
.step.is-active { color: var(--ink); border-top-color: var(--primary); }
.step.is-active span { background: var(--primary); }
.step.is-done span { background: var(--ok); }

/* Card */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
}
.card h2 { font-size: 18px; margin: 0 0 10px; }
.lead { color: var(--muted); margin: 0 0 16px; }
.hidden { display: none !important; }

/* Consent */
.consent-box {
  background: #f8fafc;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 16px;
  font-size: 14px;
  margin-bottom: 16px;
}
.consent-box p { margin: 0 0 10px; }
.consent-box p:last-child { margin-bottom: 0; }
.muted { color: var(--muted); font-size: 13px; }

.check {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 14px;
  cursor: pointer;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
}
.check input { margin-top: 3px; width: 18px; height: 18px; flex: none; accent-color: var(--primary); }

/* Fields */
.field { margin-bottom: 14px; }
.row { display: flex; gap: 12px; }
.row .field { flex: 1; }
label { display: block; font-size: 14px; font-weight: 500; margin-bottom: 6px; }
.req { color: var(--danger); }
.hint { font-size: 12px; color: var(--muted); margin: 6px 0 0; }

input, select, textarea {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font: inherit;
  color: var(--ink);
  background: #fff;
  transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-soft);
}
textarea { resize: vertical; }
.invalid { border-color: var(--danger) !important; }

/* Goal chips */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { position: relative; margin: 0; }
.chip input { position: absolute; opacity: 0; pointer-events: none; }
.chip span {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px;
  cursor: pointer;
  user-select: none;
}
.chip input:checked + span {
  background: var(--primary-soft);
  border-color: var(--primary);
  color: #115e59;
  font-weight: 600;
}
.chip input:focus-visible + span { box-shadow: 0 0 0 3px var(--primary-soft); }

/* OTP */
.otp-input {
  letter-spacing: 12px;
  text-align: center;
  font-size: 24px;
  font-weight: 600;
}
.dev-banner {
  background: #fef9c3;
  border: 1px solid #fde047;
  color: #854d0e;
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 13px;
  margin-bottom: 14px;
}

/* Buttons */
.actions { display: flex; gap: 10px; margin-top: 18px; }
.btn {
  appearance: none;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 12px 18px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  flex: 1;
  transition: background .15s, opacity .15s;
}
.btn.primary { background: var(--primary); color: var(--primary-ink); }
.btn.primary:hover { background: #0d6b63; }
.btn.ghost { background: #fff; border-color: var(--line); color: var(--ink); flex: 0 0 auto; }
.btn.link { background: none; color: var(--primary); border: none; flex: none; padding: 8px; font-weight: 500; text-decoration: underline; margin: 8px auto 0; display: block; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* Message */
.msg { text-align: center; font-size: 14px; margin: 14px 0 0; min-height: 20px; }
.msg.error { color: var(--danger); }
.msg.ok { color: var(--ok); }

/* Success */
.success { text-align: center; }
.tick {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 34px;
  display: grid; place-items: center;
  margin: 4px auto 14px;
}

/* Footer */
.foot {
  margin-top: 22px;
  font-size: 12px;
  color: var(--muted);
  text-align: center;
}
.foot p { margin: 0 0 6px; }

@media (max-width: 420px) {
  .row { flex-direction: column; gap: 0; }
}