/* v134 — embedded Ampere-law simulations for Magnetic Field §4.4 */
.ampere-sims-v134{display:grid;gap:28px;margin-top:30px}
.ampere-sim-v134{padding:24px;border:1px solid #dce4f1;border-radius:24px;background:linear-gradient(180deg,#fbfdff 0%,#f7f9fd 100%);box-shadow:0 14px 34px rgba(30,49,82,.055);scroll-margin-top:110px}
.ampere-sim-heading-v134{max-width:920px}.ampere-sim-kicker-v134{margin:0 0 7px;color:#315bb8;font-size:.68rem;font-weight:900;letter-spacing:.11em}.ampere-sim-heading-v134 h3{margin:.1rem 0 .55rem;color:#17233b;font-size:clamp(1.12rem,2vw,1.38rem);line-height:1.3}.ampere-sim-heading-v134>p:last-child{margin:0 0 16px;color:#5d6a7d;line-height:1.67}
.ampere-player-v134{overflow:hidden;border:1px solid #d7dfeb;border-radius:18px;background:#101929;min-height:178px;box-shadow:0 9px 24px rgba(20,35,60,.10)}
.ampere-placeholder-v134{min-height:178px;display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:16px;padding:20px 22px;background:radial-gradient(circle at 10% 20%,rgba(103,139,234,.18),transparent 34%),linear-gradient(135deg,#17233b,#101929);color:#fff}
.ampere-placeholder-v134 strong{font-size:1rem}.ampere-placeholder-v134 p{margin:5px 0 0;color:#c5d0e2;font-size:.88rem;line-height:1.5}.ampere-play-v134{display:grid;place-items:center;width:48px;height:48px;border-radius:50%;background:#fff;color:#284d9a;font-size:1.05rem;padding-left:3px;box-shadow:0 7px 18px rgba(0,0,0,.18)}
.ampere-load-v134{appearance:none;border:0;border-radius:999px;padding:12px 16px;background:#fff;color:#17233b;font:800 .82rem/1 system-ui,-apple-system,"Segoe UI",sans-serif;cursor:pointer;white-space:nowrap;transition:transform .15s ease,box-shadow .15s ease}.ampere-load-v134:hover{transform:translateY(-1px);box-shadow:0 7px 18px rgba(0,0,0,.18)}.ampere-load-v134:focus-visible{outline:3px solid #9db6f2;outline-offset:3px}
.ampere-player-v134 iframe{display:block;width:100%;height:clamp(540px,66vw,760px);border:0;background:#fff}.ampere-player-geogebra-v134 iframe{height:clamp(580px,70vw,790px)}
.ampere-links-v134{display:flex;justify-content:flex-end;margin:8px 4px 17px}.ampere-links-v134 a{font-size:.77rem;font-weight:850;color:#355fae;text-decoration:none}.ampere-links-v134 a:hover{text-decoration:underline}
.ampere-task-v134{padding:19px 20px;border:1px solid #e0e5ed;border-radius:18px;background:#fff}.ampere-task-label-v134{display:inline-block;margin-bottom:9px;padding:6px 9px;border-radius:999px;background:#eaf1ff;color:#2b55aa;font-size:.65rem;font-weight:900;letter-spacing:.08em}.ampere-task-v134 h4{margin:0 0 10px;color:#17233b;font-size:1.05rem;line-height:1.4}.ampere-task-v134 ol{margin:10px 0 15px;padding-left:1.45rem}.ampere-task-v134 li{padding-left:.2rem;margin:.5rem 0;color:#334155;line-height:1.62}.ampere-task-v134 li::marker{font-weight:900;color:#315bb1}
.ampere-question-v134{margin:14px 0 0;padding:13px 15px;border-left:4px solid #6f8edc;border-radius:0 12px 12px 0;background:#f2f6ff;color:#33445f;line-height:1.6}.ampere-check-v134{margin-top:13px;border-top:1px solid #e5e9f0;padding-top:11px}.ampere-check-v134 summary{cursor:pointer;color:#3159a6;font-weight:850;font-size:.86rem}.ampere-check-v134 p{margin:.65rem 0 0;color:#566477;line-height:1.65}
@media(max-width:760px){.ampere-sims-v134{gap:22px;margin-top:24px}.ampere-sim-v134{padding:16px;border-radius:20px}.ampere-placeholder-v134{grid-template-columns:auto minmax(0,1fr);padding:17px;min-height:190px}.ampere-load-v134{grid-column:1/-1;width:100%;min-height:44px}.ampere-player-v134 iframe,.ampere-player-geogebra-v134 iframe{height:68vh;min-height:520px;max-height:720px}.ampere-task-v134{padding:16px}}
@media(max-width:430px){.ampere-sim-v134{padding:14px}.ampere-placeholder-v134{grid-template-columns:1fr;text-align:center}.ampere-play-v134{margin:auto}.ampere-player-v134 iframe,.ampere-player-geogebra-v134 iframe{height:72vh;min-height:500px}.ampere-links-v134{justify-content:center}.ampere-task-v134 ol{padding-left:1.2rem}}