.content{position:relative;z-index:1;padding:40px 28px 80px;min-height:calc(100vh - 52px)}.page-intro{text-align:center;padding:32px 0 48px}.page-intro h1{font-family:var(--mono);font-size:clamp(1.8rem,3.5vw,2.6rem);font-weight:600;letter-spacing:-.03em}.page-intro p{margin-top:10px;font-size:.88rem;color:var(--dim);max-width:52ch;margin-left:auto;margin-right:auto;line-height:1.6}.cols{display:grid;grid-template-columns:1fr 1fr;gap:48px;max-width:1100px;margin:0 auto}.group-heading{font-family:var(--mono);font-size:.54rem;letter-spacing:.18em;text-transform:uppercase;color:var(--dim);padding-bottom:10px;border-bottom:1px solid var(--line);margin-bottom:20px}.subgroup{margin-bottom:28px}.subgroup-label{font-family:var(--mono);font-size:.5rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:10px}.subgroup-label.quark{color:var(--q)}.subgroup-label.lepton{color:var(--l)}.subgroup-label.boson{color:var(--b)}.subgroup-label.higgs{color:var(--h)}.card-grid{display:grid;gap:8px}.card-grid.g3{grid-template-columns:repeat(3,1fr)}.card-grid.g2{grid-template-columns:repeat(2,1fr)}.card-grid.g1{grid-template-columns:1fr}.pcard-wrapper{perspective:700px;cursor:grab;user-select:none;-webkit-user-select:none}.pcard-wrapper.dragging{cursor:grabbing}.pcard-inner{display:grid;transform-style:preserve-3d;width:100%}.pcard-front,.pcard-glass{grid-area:1/1;border-radius:8px}.pcard-glass{transform:rotateY(180deg);backface-visibility:hidden;-webkit-backface-visibility:hidden;background:linear-gradient(135deg,#ffffff1c,#ffffff0a 45%,#ffffff17);border:1px solid var(--line);position:relative;overflow:hidden;pointer-events:none}.pcard-glass:after{content:"";position:absolute;top:-30%;left:-10%;width:55%;height:160%;background:linear-gradient(105deg,transparent 38%,rgba(255,255,255,.14) 50%,transparent 62%);transform:skew(-8deg)}.pcard-front{background:var(--bg-soft);border:1px solid var(--line);padding:12px 11px;position:relative;overflow:hidden;transition:background .2s,border-color .2s}.pcard-wrapper:not(.dragging):hover .pcard-front{background:var(--bg-soft);border-color:var(--ink-dim)}.pcard-front:before{content:"";position:absolute;top:0;left:0;right:0;height:2px;border-radius:2px 2px 0 0}.pcard-wrapper[data-t=q] .pcard-front:before{background:var(--q)}.pcard-wrapper[data-t=l] .pcard-front:before{background:var(--l)}.pcard-wrapper[data-t=b] .pcard-front:before{background:var(--b)}.pcard-wrapper[data-t=h] .pcard-front:before{background:var(--h)}.pcard-icon{width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-weight:600;font-size:1.2rem;margin-bottom:8px}.pcard-icon.sm{font-size:.9rem}.pcard-wrapper[data-t=q] .pcard-icon{box-shadow:0 0 0 1px #4d8aff73;color:var(--q)}.pcard-wrapper[data-t=l] .pcard-icon{box-shadow:0 0 0 1px #ff557773;color:var(--l)}.pcard-wrapper[data-t=b] .pcard-icon{box-shadow:0 0 0 1px #00e06a73;color:var(--b)}.pcard-wrapper[data-t=h] .pcard-icon{box-shadow:0 0 0 1px #ffb02e73;color:var(--h)}.pcard-name{font-family:var(--mono);font-size:.56rem;color:var(--dim);margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.pcard-props{list-style:none;display:flex;flex-direction:column;gap:3px}.pcard-props li{display:flex;justify-content:space-between;align-items:baseline;gap:4px;font-size:.58rem;line-height:1.3}.prop-k{color:var(--dim);white-space:nowrap;flex-shrink:0}.prop-v{font-family:var(--mono);color:var(--ink);text-align:right;font-size:.58rem}.pcard-wrapper.featured .pcard-front{padding:16px 14px}.pcard-wrapper.featured .pcard-icon{width:60px;height:60px;font-size:1.6rem}.pcard-wrapper.featured .pcard-props li,.pcard-wrapper.featured .prop-v{font-size:.66rem}.pcard-wrapper.featured .back-sym{font-size:3.2rem}@media (max-width:860px){.cols{grid-template-columns:1fr;gap:32px}.card-grid{gap:14px}.card-grid.g3{grid-template-columns:repeat(2,1fr)}.pcard-wrapper{touch-action:pan-y}}@media (max-width:480px){.card-grid.g3,.card-grid.g2{grid-template-columns:1fr}.card-grid{gap:16px}.cols{padding-bottom:80px}}.grav-subgroup{margin-top:32px;opacity:.8}.grav-subgroup .subgroup-label{color:var(--ink-dim);display:flex;align-items:center;gap:0}.grav-sublabel-note{font-family:var(--mono);font-size:.42rem;letter-spacing:.07em;color:#ff5a3c66;margin-left:8px;text-transform:uppercase}.grav-card{background:var(--bg-soft);border:1px solid var(--line);border-radius:8px;padding:16px 14px;position:relative;overflow:hidden}.grav-card:before{content:"";position:absolute;top:0;left:0;right:0;height:2px;border-radius:2px 2px 0 0;background:#c8c8e626}.grav-badge{position:absolute;top:10px;right:10px;font-family:var(--mono);font-size:.37rem;letter-spacing:.14em;color:#ff5a3c99;border:1px solid rgba(255,90,60,.22);border-radius:3px;padding:2px 6px;text-transform:uppercase}.grav-icon-wrap{position:relative;width:60px;height:60px;margin-bottom:8px}.grav-icon,.grav-icon-r,.grav-icon-b{position:absolute;inset:0;border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-weight:600;font-size:1.6rem;width:60px;height:60px}.grav-icon{box-shadow:0 0 0 1px var(--line);color:var(--ink-dim);z-index:2}.grav-icon-r{color:#ff2d2d8c;pointer-events:none;z-index:1;mix-blend-mode:screen;animation:grav-r 3.8s ease-in-out infinite}.grav-icon-b{color:#2d2dff80;pointer-events:none;z-index:1;mix-blend-mode:screen;animation:grav-b 3.8s ease-in-out infinite}@keyframes grav-r{0%,to{transform:translate(-3px)}30%{transform:translate(-4px,1px)}65%{transform:translate(-2.5px,-1px)}}@keyframes grav-b{0%,to{transform:translate(3px)}30%{transform:translate(2px,-1px)}65%{transform:translate(4px,1px)}}.grav-name{font-family:var(--mono);font-size:.56rem;color:var(--ink-dim);margin-bottom:8px}.grav-none{color:#ff5a3c73!important}.grav-q{color:#ff5a3c73;font-size:.5rem}