.math-stories-home{margin:72px 0 28px;padding:clamp(28px,5vw,58px);border:1px solid rgba(var(--accent-rgb),.17);border-radius:30px;background:linear-gradient(145deg,var(--panel-solid),var(--soft));overflow:hidden}
.stories-heading{display:grid;grid-template-columns:minmax(0,1fr) minmax(240px,.62fr);align-items:end;gap:30px;margin-bottom:28px}.stories-heading span,.story-card>span,.stories-index>header>span,.story-topbar>span,.story-hero>div>span,.ratio-lab>div>span,.josephus-controls>span{color:var(--accent-dark);font-size:.7rem;font-weight:850;letter-spacing:.11em}.stories-heading h2,.stories-index h1{margin:5px 0 0;color:var(--accent-dark);font-size:clamp(2rem,5vw,4rem);letter-spacing:-.055em}.stories-heading p,.stories-index>header p{margin:0;color:var(--muted);line-height:1.75}.stories-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.story-card{display:grid;align-content:start;padding:20px;border:1px solid var(--line);border-radius:20px;background:var(--panel-solid);color:var(--text);text-decoration:none;transition:transform .18s,border-color .18s,box-shadow .18s}.story-card:hover{transform:translateY(-4px);border-color:rgba(var(--accent-rgb),.35);box-shadow:0 18px 40px rgba(var(--accent-rgb),.11)}.story-card h3{margin:9px 0 7px;font-size:1.35rem}.story-card p{margin:0;color:var(--muted);line-height:1.65}.story-card strong{margin-top:20px;color:var(--accent-dark);font-size:.78rem}.story-art{position:relative;height:185px;margin-bottom:20px;border-radius:15px;overflow:hidden}.music-art{display:flex;align-items:center;justify-content:center;gap:10px;background:linear-gradient(135deg,#171b38,#5f4b91)}.music-art i{width:11px;height:var(--h);border-radius:999px;background:#e8ddff;animation:musicPulse 1.4s ease-in-out infinite alternate}.music-art i:nth-child(1),.music-art i:nth-child(6){--h:35px}.music-art i:nth-child(2),.music-art i:nth-child(5){--h:75px}.music-art i:nth-child(3),.music-art i:nth-child(4){--h:120px}.music-art b{position:absolute;right:15px;bottom:13px;color:#fff;font-size:1.2rem}.circle-art{background:radial-gradient(circle,#fff9dd 0 18%,#eed8a7 19% 20%,#9b3f39 21% 22%,#221c2f 23% 100%)}.circle-art i{position:absolute;left:50%;top:50%;display:grid;place-items:center;width:27px;height:27px;margin:-13px;border-radius:50%;background:#f6dfaa;color:#482522;font-style:normal;font-size:.66rem;font-weight:800;transform:rotate(calc(var(--i)*30deg)) translateY(-68px) rotate(calc(var(--i)*-30deg))}.circle-art b{position:absolute;inset:0;display:grid;place-items:center;color:#fff;font-size:2rem}.stories-all{display:inline-flex;gap:8px;margin-top:24px;color:var(--accent-dark);font-weight:800;text-decoration:none}.story-page{width:min(100%,1080px);margin:28px auto 80px}.story-page.hidden{display:none}.story-topbar{display:flex;justify-content:space-between;gap:20px;margin-bottom:18px;font-size:.74rem}.story-topbar a{color:var(--accent-dark);font-weight:800;text-decoration:none}.story-topbar span{color:var(--muted)}.story-article{display:grid;gap:22px}.story-hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(260px,.58fr);align-items:center;gap:35px;min-height:430px;padding:clamp(30px,6vw,68px);border-radius:28px;color:#fff;overflow:hidden}.music-story-hero{background:radial-gradient(circle at 85% 10%,#a577d5,transparent 35%),linear-gradient(140deg,#12172f,#483266)}.josephus-story-hero{background:radial-gradient(circle at 85% 12%,#c78355,transparent 32%),linear-gradient(140deg,#281d28,#754036)}.story-hero h1{max-width:700px;margin:10px 0 16px;font-size:clamp(2.5rem,7vw,5.6rem);line-height:.95;letter-spacing:-.065em}.story-hero p{max-width:660px;margin:0;color:rgba(255,255,255,.78);line-height:1.8}.frequency-orbit{position:relative;aspect-ratio:1;border:1px solid rgba(255,255,255,.22);border-radius:50%}.frequency-orbit:before,.frequency-orbit:after{content:'';position:absolute;inset:18%;border:1px solid rgba(255,255,255,.2);border-radius:50%}.frequency-orbit:after{inset:34%}.frequency-orbit b{position:absolute;inset:0;display:grid;place-items:center;font-size:1.6rem}.wave{position:absolute;left:11%;right:11%;top:42%;height:3px;background:repeating-linear-gradient(90deg,transparent 0 5px,#fff 6px 9px,transparent 10px 15px);transform:rotate(17deg)}.wave-b{top:56%;transform:rotate(-17deg);opacity:.55}.sword-mark{position:relative;aspect-ratio:1;border:1px solid rgba(255,255,255,.2);border-radius:50%;display:grid;place-items:center}.sword-mark i{position:absolute;width:8px;height:84%;border-radius:5px;background:linear-gradient(#fff,#d6af78);transform:rotate(38deg)}.sword-mark span,.sword-mark b{position:absolute;z-index:1;display:grid;place-items:center;width:54px;height:54px;border-radius:50%;background:#201925}.sword-mark span{top:8%;left:12%}.sword-mark b{right:8%;bottom:14%;background:#f4d187;color:#3b2520;font-size:1.3rem}.story-chapter{display:grid;grid-template-columns:82px minmax(0,1fr);gap:28px;padding:36px clamp(24px,5vw,54px);border:1px solid var(--line);border-radius:22px;background:var(--panel-solid)}.chapter-number{color:var(--accent);font-size:2.6rem;font-weight:300}.story-chapter h2{margin:0 0 12px;color:var(--text);font-size:clamp(1.45rem,3vw,2.1rem)}.story-chapter p,.story-equation p,.story-conclusion p{margin:0;color:var(--muted);line-height:1.9}.ratio-lab,.josephus-lab{display:grid;grid-template-columns:minmax(230px,.7fr) minmax(0,1.3fr);gap:30px;padding:clamp(26px,5vw,48px);border-radius:22px;background:#171b38;color:#fff}.ratio-lab h2,.josephus-lab h2{margin:7px 0 10px;font-size:1.8rem}.ratio-lab p{color:rgba(255,255,255,.68);line-height:1.7}.ratio-buttons{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.ratio-buttons button{display:grid;place-items:center;gap:6px;min-height:122px;border:1px solid rgba(255,255,255,.2);border-radius:15px;background:rgba(255,255,255,.08);color:#fff;cursor:pointer}.ratio-buttons button:hover{background:rgba(255,255,255,.15)}.ratio-buttons b{font-size:1.3rem}.ratio-buttons span{font-size:.7rem}.ratio-lab output{grid-column:2;color:#d8c5f6;font-size:.75rem}.story-equation{padding:38px;text-align:center;border-radius:22px;background:var(--soft)}.story-equation>span{color:var(--accent-dark);font-size:.7rem;font-weight:850;letter-spacing:.1em}.story-equation strong{display:block;margin:12px 0;color:var(--accent-dark);font-family:Georgia,serif;font-size:clamp(2rem,6vw,4.2rem);font-weight:500}.story-equation p{max-width:700px;margin:auto}.story-conclusion{padding:48px clamp(25px,7vw,75px);border-radius:22px;background:var(--panel-solid);text-align:center}.story-conclusion>span{color:var(--accent);font-size:3rem}.story-conclusion h2{margin:10px 0;font-size:clamp(1.6rem,4vw,2.6rem)}.story-conclusion p{max-width:750px;margin:auto}.story-source{margin:0;color:var(--muted);font-size:.72rem}.story-source a{color:var(--accent-dark)}.story-next{display:flex;align-items:center;justify-content:space-between;margin-top:24px;padding:20px 4px;border-top:1px solid var(--line);color:var(--muted)}.story-next a{color:var(--accent-dark);font-weight:800;text-decoration:none}.stories-index>header{padding:50px clamp(24px,6vw,65px);margin-bottom:22px;border-radius:26px;background:linear-gradient(135deg,var(--soft),var(--panel-solid))}.stories-index .math-stories-home{margin:0}.josephus-controls{display:grid;align-content:center;gap:12px}.josephus-controls label{display:flex;align-items:center;justify-content:space-between;gap:20px;color:rgba(255,255,255,.72);font-size:.76rem}.josephus-controls input{width:86px;padding:9px;border:1px solid rgba(255,255,255,.25);border-radius:9px;background:rgba(255,255,255,.1);color:#fff}.josephus-controls>div{display:flex;flex-wrap:wrap;gap:8px}.josephus-controls button{padding:9px 12px;border:1px solid rgba(255,255,255,.22);border-radius:9px;background:rgba(255,255,255,.09);color:#fff;cursor:pointer}.josephus-controls button:last-child{background:#f2cd82;color:#2f2020;font-weight:800}.josephus-controls output{color:#f2cd82;font-size:.78rem}.josephus-stage{display:grid;place-items:center;min-height:360px}.josephus-circle{position:relative;width:min(340px,80vw);aspect-ratio:1;border:1px solid rgba(255,255,255,.18);border-radius:50%}.josephus-circle span{position:absolute;left:50%;top:50%;display:grid;place-items:center;width:34px;height:34px;margin:-17px;border-radius:50%;background:#f4d187;color:#302027;font-size:.68rem;font-weight:850;transform:rotate(calc(var(--i)*1turn/var(--n))) translateY(calc(clamp(115px,13vw,155px)*-1)) rotate(calc(var(--i)*-1turn/var(--n)));transition:.2s}.josephus-circle span.is-out{opacity:.16;transform:rotate(calc(var(--i)*1turn/var(--n))) translateY(calc(clamp(115px,13vw,155px)*-1)) rotate(calc(var(--i)*-1turn/var(--n))) scale(.65)}.josephus-circle span.is-survivor{background:#74d9b0;box-shadow:0 0 0 9px rgba(116,217,176,.15);transform:rotate(calc(var(--i)*1turn/var(--n))) translateY(calc(clamp(115px,13vw,155px)*-1)) rotate(calc(var(--i)*-1turn/var(--n))) scale(1.2)}.josephus-circle>b{position:absolute;inset:0;display:grid;place-items:center;font-size:2.6rem}.josephus-equation strong{font-size:clamp(1.6rem,4vw,3rem);line-height:1.5}
@keyframes musicPulse{to{height:35px;opacity:.55}}@media(max-width:760px){.stories-heading,.stories-grid,.story-hero,.ratio-lab,.josephus-lab{grid-template-columns:1fr}.story-hero{min-height:0}.frequency-orbit,.sword-mark{width:min(280px,80vw);margin:auto}.story-chapter{grid-template-columns:1fr;gap:8px}.ratio-lab output{grid-column:1}.josephus-stage{min-height:300px}.josephus-circle{width:270px}.josephus-circle span{transform:rotate(calc(var(--i)*1turn/var(--n))) translateY(-124px) rotate(calc(var(--i)*-1turn/var(--n)))}.josephus-circle span.is-out{transform:rotate(calc(var(--i)*1turn/var(--n))) translateY(-124px) rotate(calc(var(--i)*-1turn/var(--n))) scale(.65)}.josephus-circle span.is-survivor{transform:rotate(calc(var(--i)*1turn/var(--n))) translateY(-124px) rotate(calc(var(--i)*-1turn/var(--n))) scale(1.15)}.story-next{align-items:flex-start;flex-direction:column;gap:8px}}@media(max-width:460px){.ratio-buttons{grid-template-columns:1fr}.ratio-buttons button{min-height:72px}.story-art{height:150px}}