/* Sample size & power calculator, scoped styles on the shared design tokens. */
.t1-trust { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 22px; }
.t1-trust-item { display: inline-flex; align-items: center; gap: 8px; font-size: var(--text-sm); color: var(--text-secondary); }
.t1-trust-item svg { color: var(--success); flex-shrink: 0; }

.t1-why { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.t1-why-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 22px; }
.t1-why-card .t1-k { font-family: var(--font-sans); font-size: var(--text-xs); font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--accent-ink); margin-bottom: 8px; }
.t1-why-card h3 { margin: 0 0 8px; font-size: var(--text-lg); color: var(--text-primary); }
.t1-why-card p { margin: 0; color: var(--text-secondary); font-size: var(--text-sm); line-height: var(--leading-body); }

.ss-card { max-width: 720px; margin: 0 auto; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-xl); box-shadow: 0 24px 60px -34px rgba(17,22,29,.35); padding: 26px; }
.ss-controls { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 20px; }
.ss-field > label, .ss-in-field > label { display: block; font-family: var(--font-sans); font-size: var(--text-sm); font-weight: 600; color: var(--text); margin-bottom: 8px; }
.ss-toggle { display: inline-flex; width: 100%; background: var(--bg-subtle); border: 1px solid var(--border); border-radius: var(--radius); padding: 3px; }
.ss-toggle button { flex: 1; border: 0; background: transparent; padding: 9px 8px; border-radius: calc(var(--radius) - 3px); font-family: var(--font-sans); font-size: 13.5px; font-weight: 600; color: var(--text-secondary); cursor: pointer; transition: all .18s var(--ease); }
.ss-toggle button.is-on { background: var(--bg-card); color: var(--primary); box-shadow: 0 1px 3px rgba(17,22,29,.12); }

.ss-inputs { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 4px; }
.ss-group { display: contents; }
.ss-in-field { min-width: 0; }
.ss-in { width: 100%; box-sizing: border-box; padding: 11px 13px; font-size: 15px; font-family: var(--font-sans); font-variant-numeric: tabular-nums; color: var(--text); background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); transition: border-color .15s; }
.ss-in:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

.ss-error { color: var(--danger); font-size: var(--text-sm); margin-top: 10px; min-height: 1px; }

.ss-result { margin-top: 22px; padding-top: 22px; border-top: 1px solid var(--border-light); }
.ss-big { display: flex; align-items: baseline; flex-wrap: wrap; gap: 6px 10px; }
.ss-num { font-family: var(--font-serif); font-size: 44px; font-weight: 700; color: var(--primary); line-height: 1; }
.ss-num2 { font-family: var(--font-serif); font-size: 30px; font-weight: 700; color: var(--text-secondary); line-height: 1; }
.ss-lbl { font-size: var(--text-sm); color: var(--text-muted); }
.ss-sep { color: var(--border); font-size: 26px; }
.ss-interp { margin: 14px 0 0; color: var(--text-secondary); font-size: var(--text-base); line-height: var(--leading-body); }
.ss-interp strong { color: var(--text-primary); }

.ss-rcode-wrap { margin-top: 16px; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.ss-rcode-head { display: flex; align-items: center; justify-content: space-between; padding: 7px 12px; background: var(--bg-subtle); border-bottom: 1px solid var(--border); font-family: var(--font-mono); font-size: 12px; color: var(--text-muted); }
.ss-copy { border: 0; background: transparent; color: var(--accent-ink); font-family: var(--font-sans); font-size: 12.5px; font-weight: 600; cursor: pointer; }
.ss-rcode { margin: 0; padding: 12px 14px; font-family: var(--font-mono); font-size: 12.5px; color: var(--text); white-space: pre-wrap; word-break: break-word; background: var(--bg-card); }
.ss-note { margin: 16px 0 0; font-size: var(--text-xs); color: var(--text-muted); line-height: 1.5; }

.ss-faq { display: grid; gap: 10px; }
.ss-faq-item { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 4px 18px; }
.ss-faq-item summary { cursor: pointer; padding: 14px 0; font-family: var(--font-sans); font-weight: 600; color: var(--text-primary); list-style: none; }
.ss-faq-item summary::-webkit-details-marker { display: none; }
.ss-faq-item[open] summary { border-bottom: 1px solid var(--border-light); }
.ss-faq-item p { margin: 0; padding: 12px 0 16px; color: var(--text-secondary); font-size: var(--text-sm); line-height: var(--leading-body); }

/* ---- email gate ---- */
.ss-result-wrap { margin-top: 22px; padding-top: 22px; border-top: 1px solid var(--border-light); }
.ss-result-wrap .ss-result { margin-top: 0; padding-top: 0; border-top: 0; }
.ss-result-inner { position: relative; }
.ss-result-wrap:not(.is-revealed) .ss-result { filter: blur(7px); pointer-events: none; user-select: none; opacity: .9; }
.ss-gate { position: absolute; inset: -14px -6px; display: flex; align-items: center; justify-content: center; }
.ss-result-wrap.is-revealed .ss-gate { display: none; }
.ss-gate-card { width: 100%; max-width: 400px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: 0 22px 55px -28px rgba(17,22,29,.45); padding: 26px 24px; text-align: center; }
.ss-lock { width: 46px; height: 46px; margin: 0 auto 12px; display: flex; align-items: center; justify-content: center; border-radius: 50%; background: var(--accent-soft); color: var(--accent-ink); }
.ss-gate-card h3 { margin: 0 0 8px; font-size: var(--text-xl); color: var(--text-primary); }
.ss-gate-sum { margin: 0 0 18px; font-size: var(--text-sm); color: var(--text-secondary); line-height: var(--leading-body); }
.ss-gate-form { display: grid; gap: 10px; }
.ss-gate-form input { width: 100%; box-sizing: border-box; padding: 12px 14px; font-size: 15px; font-family: var(--font-sans); text-align: center; color: var(--text); background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); }
.ss-gate-form input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
#ssCodeInput { letter-spacing: .4em; font-variant-numeric: tabular-nums; font-weight: 600; }
.ss-gate-err { color: var(--danger); font-size: var(--text-xs); min-height: 1px; text-align: left; }
.ss-suggest { display: none; font-size: var(--text-xs); color: var(--text-secondary); text-align: left; }
.ss-suggest.is-on { display: block; }
.ss-suggest b { color: var(--accent-ink); cursor: pointer; text-decoration: underline; }
.ss-priv { display: flex; align-items: center; justify-content: center; gap: 7px; margin-top: 14px; font-size: var(--text-xs); color: var(--text-muted); }
.ss-priv svg { color: var(--success); flex-shrink: 0; }
.ss-badge { display: inline-block; margin-bottom: 8px; padding: 3px 10px; border-radius: 100px; background: var(--bg-subtle); border: 1px solid var(--border); font-family: var(--font-sans); font-size: var(--text-xs); font-weight: 600; letter-spacing: .04em; color: var(--text-secondary); }
.ss-back { display: flex; gap: 16px; justify-content: center; margin-top: 14px; }
.ss-back button { border: 0; background: transparent; color: var(--accent-ink); font-family: var(--font-sans); font-size: var(--text-xs); font-weight: 600; cursor: pointer; text-decoration: underline; }
.ss-success { display: none; align-items: center; gap: 9px; margin-bottom: 16px; padding: 11px 15px; border-radius: var(--radius); background: rgba(43, 122, 75, .1); color: var(--success); font-size: var(--text-sm); font-weight: 500; }
.ss-result-wrap.is-revealed .ss-success { display: flex; }
.ss-success svg { flex-shrink: 0; }

@media (max-width: 720px) {
  .t1-why { grid-template-columns: 1fr; }
  .ss-controls { grid-template-columns: 1fr; }
  .ss-gate { inset: -14px 0; }
  .ss-gate-card { padding: 22px 18px; }
}