/* v167: self-contained optional Sukūn recognition activity */
.sbs167-wrap{box-sizing:border-box;max-width:1110px;margin:26px auto 38px;border:1px solid #d5bedb;border-radius:25px;background:linear-gradient(124deg,#f3f0ff,#fff7e6);color:#311848;overflow:hidden;box-shadow:0 10px 36px #30134f13;scroll-margin-top:100px}
.sbs167-wrap *{box-sizing:border-box}
.sbs167-wrap>summary{list-style:none;display:flex;align-items:center;gap:17px;padding:20px 24px;min-height:98px;cursor:pointer}
.sbs167-wrap>summary::-webkit-details-marker{display:none}
.sbs167-wrap>summary:focus-visible,.sbs167-wrap button:focus-visible{outline:3px solid #e6a03d;outline-offset:3px}
.sbs167-glyph{flex:0 0 78px;width:78px;min-height:78px;display:grid;place-items:center;border-radius:18px;background:#48216e;color:#fff0cd;font:700 3.5rem/1.45 'Noto Naskh Arabic','Amiri','Arial',serif}
.sbs167-summary-text{display:grid;gap:5px;flex:1;min-width:0}
.sbs167-kicker{font-size:.74rem;font-weight:850;letter-spacing:.085em;color:#7f397d}
.sbs167-summary-text strong{font:700 clamp(1.38rem,2.9vw,2.13rem)/1.2 Georgia,serif;color:#371750}
.sbs167-summary-text small{line-height:1.45;font-size:.91rem;color:#63526e}
.sbs167-more{font-size:.85rem;font-weight:800;color:#62318b;white-space:nowrap}
.sbs167-wrap[open] .sbs167-more{font-size:0}.sbs167-wrap[open] .sbs167-more:after{content:'Close ↑';font-size:.85rem}
.sbs167-body{padding:0 24px 25px}.sbs167-intro{font-size:1.02rem;line-height:1.65;max-width:82ch;margin:7px 0 18px}
.sbs167-contrast{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}
.sbs167-contrast article{display:grid;justify-items:center;align-content:center;gap:3px;min-width:0;padding:14px 8px 18px;background:#fff;border:1px solid #d9c6e2;border-radius:18px;text-align:center}
.sbs167-contrast .sbs167-sukun-card{background:#efe5ff;border-color:#a78dc4}
.sbs167-card-tag{font-weight:900;font-size:.72rem;letter-spacing:.035em;color:#613681}
.sbs167-example{font:700 clamp(3.1rem,6vw,5.1rem)/1.65 'Noto Naskh Arabic','Amiri','Arial',serif;min-height:111px;color:#331855}
.sbs167-contrast article>span:last-child{font-size:.83rem;color:#563a69;font-weight:720}
.sbs167-syllable{margin:17px 0;display:flex;gap:22px;justify-content:space-between;align-items:center;padding:18px 24px;background:#fff;border:1px solid #dac8e5;border-radius:19px}
.sbs167-syllable h3,.sbs167-practice h3{margin:7px 0 9px;font:700 clamp(1.45rem,2.3vw,1.95rem)/1.25 Georgia,serif;color:#371b56}
.sbs167-syllable p,.sbs167-practice>div>p{margin:0;max-width:65ch;line-height:1.6}
.sbs167-syllable strong[lang=ar]{font:700 1.45rem 'Noto Naskh Arabic','Amiri',serif;white-space:nowrap}
.sbs167-syllable-art{padding:0 13px;font:700 clamp(3.8rem,8vw,6.1rem)/1.6 'Noto Naskh Arabic','Amiri',serif;color:#7543a5}
.sbs167-practice{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.45fr);gap:17px;padding:18px;border:1px solid #d5c2e4;border-radius:20px;background:#f9f4ff}
.sbs167-quiz{min-width:0;border:1px solid #d6c5e4;border-radius:17px;background:white;padding:17px}
.sbs167-step{font-size:.8rem;font-weight:850;letter-spacing:.045em;color:#714d84;margin:0}
.sbs167-question{margin:7px 0 13px;font-size:1.1rem;font-weight:800;color:#30134c}
.sbs167-choices{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px}
.sbs167-choices button{min-width:0;min-height:127px;padding:4px;display:grid;justify-items:center;align-content:center;gap:1px;border:2px solid #cbb6da;border-radius:16px;background:#fff;color:#3e1e59;cursor:pointer}
.sbs167-choices button:hover{background:#f8f3ff;border-color:#8c5db4}
.sbs167-choices button[disabled]{cursor:default}
.sbs167-choices button[data-correct=true]{background:#def5eb;border-color:#20765c}
.sbs167-choices button[data-wrong=true]{background:#fff1ee;border-color:#9f5562}
.sbs167-choice-glyph{font:700 clamp(3.8rem,6vw,5.4rem)/1.42 'Noto Naskh Arabic','Amiri','Arial',serif;white-space:nowrap}
.sbs167-option-number{font-size:.8rem;font-weight:780}
.sbs167-feedback{min-height:42px;line-height:1.45;font-weight:700;color:#4d2d68;margin:12px 0}
.sbs167-actions{display:flex;flex-wrap:wrap;gap:8px}
.sbs167-actions button{min-height:44px;border:1px solid #9876b3;background:#fff;border-radius:12px;padding:9px 12px;color:#4b2a6f;font:700 .92rem system-ui,sans-serif;cursor:pointer}
.sbs167-actions #sbs167-next{background:#512678;color:#fff}
.sbs167-actions #sbs167-next:disabled{background:#dfd3e8;color:#6a5c76;cursor:not-allowed}
.sbs167-parent{font-size:.9rem;line-height:1.65;color:#564262;margin:18px 0 0}
.sbs167-parent a{color:#6c3696;text-decoration:underline;text-underline-offset:3px}
@media(max-width:780px){.sbs167-practice{grid-template-columns:1fr}.sbs167-wrap>summary{padding:17px}.sbs167-body{padding:0 16px 20px}.sbs167-more{display:none}}
@media(max-width:540px){.sbs167-glyph{width:59px;flex-basis:59px;min-height:64px;font-size:2.65rem}.sbs167-summary-text strong{font-size:1.28rem}.sbs167-summary-text small{font-size:.82rem}.sbs167-contrast{grid-template-columns:repeat(2,minmax(0,1fr))}.sbs167-example{min-height:92px;font-size:3.9rem}.sbs167-syllable{padding:12px;gap:6px}.sbs167-syllable-art{font-size:3.1rem;padding:0 5px}.sbs167-quiz{padding:10px}.sbs167-choices{gap:5px}.sbs167-choices button{min-height:106px}.sbs167-choice-glyph{font-size:3.7rem}.sbs167-actions button{flex:1;font-size:.84rem}}
@media(prefers-reduced-motion:reduce){.sbs167-wrap *, .sbs167-wrap *:before,.sbs167-wrap *:after{scroll-behavior:auto!important;animation:none!important;transition:none!important}}

.sbs167-inline-mark{font:700 1.4em/1.2 'Noto Naskh Arabic','Amiri',serif;white-space:nowrap;color:#6a368f;vertical-align:middle}
@media(max-width:540px){.sbs167-syllable-art{display:none}}