/* v1.25.0 Phase 2: Smart Revision + Gamification */
.s15-home{margin:14px 0;padding:16px;border:1px solid #d9e4ff;border-radius:20px;background:linear-gradient(135deg,#f7f9ff,#eef9ff);box-shadow:0 10px 24px rgba(15,50,110,.08);display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;align-items:center}.s15-home-main{display:flex;gap:12px;align-items:center;min-width:0}.s15-home-icon{width:48px;height:48px;border-radius:16px;background:#fff;display:grid;place-items:center;font-size:25px;box-shadow:0 6px 14px rgba(30,64,175,.12)}.s15-home small{display:block;color:#667085;font-weight:700}.s15-home h2{margin:2px 0 3px;font-size:18px;color:#102a56}.s15-home p{margin:0;color:#667085;font-size:12px}.s15-home-side{display:flex;gap:6px;grid-column:1/2;flex-wrap:wrap}.s15-home-side span{background:#fff;border:1px solid #e0e7ff;border-radius:999px;padding:5px 8px;font-size:11px;font-weight:800;color:#344054}.s15-home>button{grid-column:2;grid-row:1/3;border:0;border-radius:13px;background:#155eef;color:#fff;font-weight:800;padding:11px 14px;cursor:pointer}.s15-overlay{position:fixed;inset:0;z-index:999999;background:rgba(15,23,42,.58);padding:12px;overflow:auto}.s15-overlay[hidden]{display:none!important}.s15-sheet{max-width:720px;margin:10px auto 30px;background:#f7f9fc;border-radius:24px;overflow:hidden;box-shadow:0 25px 70px rgba(0,0,0,.25)}.s15-sheet>header{display:flex;justify-content:space-between;gap:15px;align-items:flex-start;padding:20px;background:linear-gradient(135deg,#123a8c,#1668dc);color:#fff}.s15-sheet header small{opacity:.8;font-weight:800}.s15-sheet h2{margin:2px 0 4px;font-size:23px}.s15-sheet header p{margin:0;opacity:.9}.s15-sheet header button{border:0;background:rgba(255,255,255,.16);color:#fff;border-radius:50%;width:38px;height:38px;font-size:24px;cursor:pointer}.s15-sheet main{padding:16px}.s15-hero{background:#fff;border:1px solid #e4e9f2;border-radius:20px;padding:17px;display:flex;justify-content:space-between;align-items:center}.s15-hero small{font-weight:800;color:#667085}.s15-hero h3{margin:4px 0;color:#14213d;font-size:23px}.s15-hero p{margin:0;color:#667085}.s15-levelring{width:72px;height:72px;border-radius:50%;background:linear-gradient(135deg,#fff7d6,#ffe89a);display:grid;place-items:center;align-content:center;border:1px solid #f6d76b}.s15-levelring b{font-size:25px;color:#8a5a00}.s15-levelring small{font-size:10px;color:#8a5a00}.s15-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:12px 0}.s15-metric{background:#fff;border:1px solid #e4e9f2;border-radius:14px;padding:10px;text-align:center}.s15-metric span,.s15-metric b,.s15-metric small{display:block}.s15-metric span{font-size:20px}.s15-metric b{font-size:18px;color:#102a56}.s15-metric small{font-size:10px;color:#667085}.s15-exam{display:flex;gap:10px;align-items:center;background:#fff5eb;border:1px solid #fed7aa;border-radius:14px;padding:11px;margin-bottom:12px}.s15-exam span{font-size:24px}.s15-exam small,.s15-exam b{display:block}.s15-exam small{color:#9a3412}.s15-exam b{color:#7c2d12}.s15-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.s15-tile{border:1px solid #dfe6f2;background:#fff;border-radius:16px;padding:13px;text-align:left;display:flex;gap:10px;align-items:center;cursor:pointer;min-height:92px}.s15-tile>span{font-size:27px}.s15-tile div{min-width:0;flex:1}.s15-tile b,.s15-tile small,.s15-tile em{display:block}.s15-tile b{color:#172033;font-size:14px}.s15-tile small{color:#667085;font-size:11px;margin-top:3px;line-height:1.35}.s15-tile em{margin-top:5px;font-size:10px;color:#155eef;font-style:normal;font-weight:800}.s15-tile i{font-style:normal;color:#98a2b3;font-size:22px}.s15-mode{margin-top:12px;padding:13px;border:1px solid #cfe0ff;background:#eef5ff;border-radius:16px;display:flex;justify-content:space-between;align-items:center;gap:10px}.s15-mode>div{display:flex;gap:10px;align-items:center}.s15-mode>div>span{font-size:25px}.s15-mode b,.s15-mode small{display:block}.s15-mode small{font-size:11px;color:#52606d;margin-top:2px}.s15-mode button{border:0;background:#155eef;color:#fff;border-radius:11px;padding:9px 12px;font-weight:800}.s15-next{margin-top:12px;background:#fff;border:1px solid #e4e9f2;border-radius:16px;padding:13px}.s15-next span,.s15-next b,.s15-next small{display:block}.s15-next span{font-size:11px;color:#667085}.s15-next b{color:#172033}.s15-next small{color:#155eef;font-weight:800}.s15-next>div{height:8px;background:#eaf0f8;border-radius:999px;overflow:hidden;margin-top:8px}.s15-next i{display:block;height:100%;background:#155eef;border-radius:999px}.s15-badges{display:grid;grid-template-columns:1fr 1fr;gap:9px}.s15-badges article{display:flex;align-items:center;gap:9px;background:#fff;border:1px solid #e4e9f2;border-radius:14px;padding:11px}.s15-badges article.locked{opacity:.55}.s15-badges article>span{font-size:24px}.s15-badges article div{flex:1}.s15-badges b,.s15-badges small{display:block}.s15-badges small{font-size:10px;color:#667085}.s15-badges i{font-style:normal;font-weight:900;color:#16a34a}.s15-levels{margin-top:14px;display:grid;gap:7px}.s15-levels div{display:grid;grid-template-columns:34px 1fr auto;align-items:center;gap:8px;background:#fff;border:1px solid #e4e9f2;border-radius:12px;padding:9px;opacity:.55}.s15-levels div.on{opacity:1;border-color:#b8cef8;background:#f8fbff}.s15-levels span{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:#eaf0ff;color:#155eef;font-weight:900}.s15-levels small{color:#667085}.s15-toast{position:fixed;left:50%;bottom:86px;transform:translateX(-50%);z-index:1000000;background:#111827;color:#fff;padding:11px 16px;border-radius:999px;font-weight:800;box-shadow:0 10px 30px rgba(0,0,0,.22);white-space:nowrap}@media(max-width:560px){.s15-grid,.s15-badges{grid-template-columns:1fr}.s15-metrics{grid-template-columns:repeat(2,1fr)}.s15-sheet{margin:0 auto 20px;border-radius:20px}.s15-overlay{padding:6px}.s15-home{grid-template-columns:1fr}.s15-home>button{grid-column:1;grid-row:auto;width:100%}.s15-home-side{grid-column:1}}