.hidden-rule-main{display:flex;flex-direction:column;align-items:center;justify-content:flex-start;min-height:100dvh;padding:80px 16px 32px;box-sizing:border-box;background:var(--color-surface-sunken, #f8fafc)}.hidden-rule-card{width:100%;max-width:580px;background:var(--color-surface-raised, #ffffff);border:1.5px solid var(--color-border-subtle, rgba(0,0,0,.12));border-radius:var(--radius-2xl, 24px);padding:24px;box-shadow:0 16px 36px #00000026;display:flex;flex-direction:column;align-items:stretch;gap:16px;box-sizing:border-box;color:var(--color-text-primary, #0f172a)}.scratchpad-container{background:var(--color-surface-subtle, #f1f5f9);border:1.5px solid var(--color-border-subtle, #e2e8f0);border-radius:16px;padding:16px;box-sizing:border-box}.scratchpad-input{width:100%;box-sizing:border-box;padding:10px 4px;font-size:18px;font-weight:900;text-align:center;border-radius:10px;background:var(--color-surface-raised, #ffffff);color:var(--color-text-primary, #0f172a);border:2px solid var(--color-border-default, #cbd5e1);outline:none;transition:border-color .2s,box-shadow .2s}.scratchpad-input:focus{border-color:var(--game-accent, #0284c7);box-shadow:0 0 0 3px #0284c733}.scratchpad-history{display:flex;flex-direction:column;gap:6px;max-height:160px;overflow-y:auto;padding-right:4px;margin-top:10px}.scratchpad-entry{display:flex;align-items:center;justify-content:space-between;padding:8px 12px;border-radius:8px;font-size:13px;font-weight:800;border:1px solid transparent}.scratchpad-entry.valid{background:#16a34a26;border-color:#16a34a66;color:#15803d}.scratchpad-entry.invalid{background:#ef44441f;border-color:#ef444459;color:#b91c1c}.hypothesis-item{cursor:pointer;text-align:left;padding:14px 16px;border-radius:12px;border:2px solid var(--color-border-subtle, #e2e8f0);background:var(--color-surface-raised, #ffffff);color:var(--color-text-primary, #0f172a);transition:all .2s;font-size:14px;font-weight:700;line-height:1.4;display:flex;align-items:flex-start;gap:12px;box-shadow:0 2px 6px #0000000a}.hypothesis-item:hover{border-color:var(--game-accent, #0284c7);background:#0284c70f}.hypothesis-item.selected{border-color:var(--game-accent, #0284c7);background:#0284c71f;box-shadow:0 0 0 3px #0284c740;font-weight:800}.hypothesis-item-label{color:var(--game-accent, #0284c7);font-weight:900;font-size:15px;min-width:28px}.hidden-rule-btn-submit{width:100%;padding:14px;font-size:15px;font-weight:900;border-radius:12px;background:#16a34a;color:#fff;border:none;cursor:pointer;box-shadow:0 4px 12px #16a34a4d;transition:all .2s}.hidden-rule-btn-submit:hover:not(:disabled){background:#15803d;box-shadow:0 6px 16px #16a34a66}.hidden-rule-btn-submit:disabled{background:#cbd5e1;color:#64748b;cursor:not-allowed;box-shadow:none;opacity:.8}