.eis-lab{max-width:1180px;margin:0 auto;color:#172b35}
.eis-hero{padding:2.5rem 0 2rem;border-bottom:1px solid #d9ded7}
.eis-kicker{color:#56766f;font-size:.67rem;font-weight:800;letter-spacing:.15em;text-transform:uppercase}
.eis-hero h1{max-width:850px;margin:.65rem 0 .8rem;font-family:Inter,Arial,sans-serif;font-size:clamp(2.5rem,5vw,4.1rem);font-weight:760;line-height:1.04;letter-spacing:-.055em}
.eis-hero p{max-width:780px;color:#687a7c;font-size:.98rem;line-height:1.75}
.eis-equation{margin:1.25rem 0;padding:1rem 1.2rem;border-left:3px solid #bd7955;background:#eeeee7;color:#30434b;font-family:Georgia,serif;font-size:1.08rem;overflow-wrap:anywhere}
.eis-layout{display:grid;grid-template-columns:330px minmax(0,1fr);gap:1.2rem;margin:1.5rem 0}
.eis-panel{min-width:0;border:1px solid #d9ded7;background:#fff}
.eis-panel-head{padding:1rem 1.1rem;border-bottom:1px solid #d9ded7;background:#f7f6f1}
.eis-panel-head small{display:block;color:#56766f;font-size:.61rem;font-weight:800;letter-spacing:.12em}
.eis-panel-head h2{margin:.3rem 0 0;color:#172b35;font-family:Inter,Arial,sans-serif;font-size:1.05rem;font-weight:750}
.eis-controls{padding:1rem 1.1rem}
.eis-control{margin:0 0 1.25rem}
.eis-control-top{display:flex;justify-content:space-between;gap:.6rem;align-items:baseline;margin-bottom:.45rem}
.eis-control label{color:#30434b;font-size:.78rem;font-weight:700}
.eis-control output{color:#264b47;font-family:'IBM Plex Mono',monospace;font-size:.76rem;font-weight:700}
.eis-control input[type=range]{width:100%;accent-color:#56766f;cursor:pointer}
.eis-control small{display:block;margin-top:.25rem;color:#879394;font-size:.66rem}
.eis-control select{width:100%;padding:.55rem;border:1px solid #d9ded7;background:#fff;color:#172b35;font:inherit;font-size:.78rem}
.eis-reset{width:100%;padding:.7rem 1rem;border:1px solid #264b47;background:#264b47;color:#fff;font-size:.76rem;font-weight:750;cursor:pointer}
.eis-reset:hover{background:#365f59}
.eis-main{display:grid;gap:1.2rem;min-width:0}
.eis-circuit-card{padding:1rem 1.1rem;border:1px solid #d9ded7;background:#fff}
.eis-circuit-title{display:flex;justify-content:space-between;gap:1rem;align-items:center;margin-bottom:.5rem}
.eis-circuit-title strong{color:#172b35;font-size:.78rem}
.eis-circuit-title span{color:#687a7c;font-size:.65rem}
.eis-circuit-svg{display:block;width:100%;height:auto;max-height:170px}
.eis-circuit-svg text{fill:#30434b;font-family:Inter,Arial,sans-serif;font-size:12px}
.eis-circuit-svg .wire{stroke:#56766f;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round}
.eis-circuit-svg .component{stroke:#bd7955;stroke-width:2.5;fill:#fffefa;stroke-linejoin:round}
.eis-circuit-svg .node{fill:#56766f}
.eis-metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.6rem}
.eis-metric{padding:.85rem .9rem;border:1px solid #d9ded7;background:#f7f6f1;min-width:0}
.eis-metric span{display:block;color:#687a7c;font-size:.6rem;font-weight:750;letter-spacing:.06em;text-transform:uppercase}
.eis-metric strong{display:block;margin-top:.35rem;color:#172b35;font-family:'IBM Plex Mono',monospace;font-size:1rem;overflow-wrap:anywhere}
.eis-chart-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.eis-chart{min-width:0;padding:.8rem;border:1px solid #d9ded7;background:#fff}
.eis-chart-head{display:flex;justify-content:space-between;gap:.5rem;align-items:center;margin-bottom:.35rem}
.eis-chart-head strong{color:#172b35;font-size:.78rem}
.eis-chart-head span{color:#879394;font-size:.61rem}
.eis-chart svg{display:block;width:100%;height:auto;overflow:visible}
.eis-chart svg text{fill:#687a7c;font-family:'IBM Plex Mono',monospace;font-size:10px}
.eis-gridline{stroke:#e4e8e2;stroke-width:1}
.eis-axis{stroke:#8a9995;stroke-width:1.2}
.eis-curve{stroke:#315b8a;stroke-width:2.8;fill:none;stroke-linecap:round;stroke-linejoin:round}
.eis-curve-secondary{stroke:#bd7955;stroke-width:2.4;fill:none;stroke-linecap:round;stroke-linejoin:round}
.eis-chart-note{margin:.3rem 0 0;color:#879394;font-size:.62rem;line-height:1.5}
.eis-explain{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin:1.2rem 0}
.eis-explain article{padding:1.1rem;border:1px solid #d9ded7;background:#fff}
.eis-explain h3{margin:0 0 .45rem;color:#172b35;font-family:Inter,Arial,sans-serif;font-size:.9rem;font-weight:750}
.eis-explain p{margin:0;color:#687a7c;font-size:.77rem;line-height:1.7}
.eis-warning{margin:1.3rem 0;padding:1rem 1.1rem;border-left:3px solid #bd7955;background:#eeeee7;color:#687a7c;font-size:.75rem;line-height:1.7}
.eis-error{display:none;margin:.8rem 0;padding:.7rem;background:#fff0eb;color:#8a3b22;font-size:.75rem}
@media(max-width:900px){.eis-layout{grid-template-columns:1fr}.eis-controls{display:grid;grid-template-columns:1fr 1fr;gap:.2rem 1rem}.eis-reset{grid-column:1/-1}}
@media(max-width:620px){.eis-hero{padding-top:1.6rem}.eis-metrics{grid-template-columns:1fr 1fr}.eis-chart-grid,.eis-explain{grid-template-columns:1fr}.eis-controls{grid-template-columns:1fr}.eis-reset{grid-column:auto}.eis-circuit-title{align-items:flex-start;flex-direction:column;gap:.2rem}}

.eis-analysis{max-width:1080px;margin:0 auto;color:#172b35}
.ea-hero{padding:2.2rem 0;border-bottom:1px solid #d9ded7}
.ea-kicker{color:#56766f;font-size:.67rem;font-weight:800;letter-spacing:.14em}
.ea-hero h1{margin:.6rem 0;font-family:Inter,Arial,sans-serif;font-size:clamp(2.1rem,4vw,3.5rem);line-height:1.08;letter-spacing:-.05em}
.ea-hero p{max-width:780px;color:#687a7c;line-height:1.75}
.ea-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin:1.5rem 0}
.ea-card{border:1px solid #d9ded7;background:#fff;min-width:0}
.ea-head{padding:1rem 1.2rem;background:#f7f6f1;border-bottom:1px solid #d9ded7}
.ea-head small{color:#56766f;font-size:.62rem;font-weight:800;letter-spacing:.12em}
.ea-head h2{margin:.35rem 0 0;font-size:1.12rem;color:#172b35}
.ea-body{padding:1.2rem}
.ea-field{margin:0 0 1rem}
.ea-field label{display:block;margin-bottom:.35rem;color:#30434b;font-size:.76rem;font-weight:700}
.ea-field input{width:100%;padding:.65rem .7rem;border:1px solid #cfd8d3;border-radius:2px;color:#172b35;font:inherit;font-size:.85rem}
.ea-field small{display:block;margin-top:.25rem;color:#879394;font-size:.66rem}
.ea-result{padding:.9rem 1rem;background:#f1f5f2;border-left:3px solid #56766f;margin-top:1rem}
.ea-result span{display:block;color:#687a7c;font-size:.64rem;font-weight:750;letter-spacing:.07em;text-transform:uppercase}
.ea-result strong{display:block;margin-top:.3rem;color:#172b35;font-family:'IBM Plex Mono',monospace;font-size:1.35rem;overflow-wrap:anywhere}
.ea-eq{padding:.8rem 1rem;margin:.8rem 0;background:#eeeee7;color:#30434b;font-family:Georgia,serif;font-size:1rem;overflow-wrap:anywhere}
.ea-note{color:#687a7c;font-size:.75rem;line-height:1.7}
.ea-table-wrap{overflow-x:auto}
.ea-table{width:100%;border-collapse:collapse;font-size:.78rem}
.ea-table th,.ea-table td{padding:.55rem .4rem;border-bottom:1px solid #e3e8e4;text-align:right}
.ea-table th:first-child,.ea-table td:first-child{text-align:left}
.ea-table input{width:100%;min-width:75px;padding:.4rem;border:1px solid #d9ded7;font:inherit;text-align:right}
.ea-button{padding:.65rem .9rem;border:1px solid #264b47;background:#264b47;color:#fff;font-size:.74rem;font-weight:750;cursor:pointer}
.ea-button.secondary{background:#fff;color:#264b47}
.ea-actions{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.8rem}
.ea-chart{width:100%;height:auto;margin-top:1rem;border:1px solid #e3e8e4}
.ea-chart text{font-family:Arial,sans-serif;fill:#687a7c;font-size:10px}
.ea-chart .grid{stroke:#e3e8e4;stroke-width:1}
.ea-chart .axis{stroke:#879394;stroke-width:1.2}
.ea-chart .fit{stroke:#315b8a;stroke-width:2.5;fill:none}
.ea-chart .point{fill:#bd7955;stroke:#fff;stroke-width:1.5}
.ea-warning{margin:1.5rem 0;padding:1rem 1.2rem;border-left:3px solid #bd7955;background:#eeeee7;color:#687a7c;font-size:.75rem;line-height:1.7}
@media(max-width:720px){.ea-grid{grid-template-columns:1fr}}

.instrument-hub{max-width:1160px;margin:0 auto;color:#10243a}
.instrument-hero{position:relative;overflow:hidden;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(280px,.85fr);gap:2.5rem;align-items:center;margin:1.2rem 0 3rem;padding:3.4rem;background:#102b4e;color:#fff}
.instrument-hero:after{content:"";position:absolute;width:390px;height:390px;right:-145px;top:-190px;border:1px solid rgba(255,255,255,.22);border-radius:50%;box-shadow:0 0 0 34px rgba(255,255,255,.035),0 0 0 72px rgba(255,255,255,.025)}
.instrument-kicker{display:flex;align-items:center;gap:.65rem;color:#a9c4e2;font-size:.66rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase}
.instrument-kicker:before{content:"";width:24px;height:2px;background:#d6a477}
.instrument-hero h1{position:relative;z-index:1;margin:1rem 0;color:#fff;font-family:Inter,Arial,sans-serif;font-size:clamp(2.6rem,5vw,4.5rem);font-weight:760;line-height:1.03;letter-spacing:-.055em}
.instrument-hero h1 span{color:#a9c4e2}
.instrument-hero p{position:relative;z-index:1;max-width:650px;color:#d5e1ee;font-size:.98rem;line-height:1.8}
.instrument-hero-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:.7rem;margin-top:1.5rem}
.instrument-primary,.instrument-secondary{display:inline-flex;align-items:center;gap:.8rem;padding:.78rem 1rem;border:1px solid transparent;border-radius:3px;font-size:.76rem;font-weight:750;text-decoration:none}
.instrument-primary{background:#fff;color:#102b4e}.instrument-primary:hover{background:#e8f0f8;color:#102b4e}
.instrument-secondary{border-color:rgba(255,255,255,.35);color:#fff}.instrument-secondary:hover{border-color:#fff;color:#fff}
.instrument-visual{position:relative;z-index:1;min-height:270px;display:grid;place-items:center;border:1px solid rgba(255,255,255,.18);background:linear-gradient(145deg,rgba(255,255,255,.08),rgba(255,255,255,.015))}
.instrument-orbit{position:relative;width:220px;height:220px;border:1px solid rgba(169,196,226,.55);border-radius:50%}
.instrument-orbit:before,.instrument-orbit:after{content:"";position:absolute;inset:25px;border:1px solid rgba(169,196,226,.35);border-radius:50%;transform:rotate(55deg) scaleX(.48)}
.instrument-orbit:after{transform:rotate(-55deg) scaleX(.48)}
.instrument-core{position:absolute;inset:78px;display:grid;place-items:center;border:1px solid #9fc1e4;border-radius:50%;background:#183d66;color:#fff;font-family:Georgia,serif;font-size:2.1rem}
.instrument-orbit-label{position:absolute;left:50%;bottom:-29px;transform:translateX(-50%);white-space:nowrap;color:#a9c4e2;font-family:monospace;font-size:.58rem;letter-spacing:.12em}
.instrument-summary{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid #dbe3ec;background:#f8fafc;margin:0 0 3.2rem}
.instrument-summary>div{padding:1rem 1.2rem}.instrument-summary>div+div{border-left:1px solid #dbe3ec}
.instrument-summary strong{display:block;color:#10243a;font-size:1.55rem;font-weight:800;letter-spacing:-.04em}
.instrument-summary span{display:block;margin-top:.25rem;color:#64748b;font-size:.62rem;font-weight:750;letter-spacing:.07em}
.instrument-section-head{display:flex;justify-content:space-between;align-items:end;gap:2rem;margin:3.5rem 0 1.3rem}
.instrument-section-head h2{margin:.35rem 0 0;color:#10243a;font-family:Inter,Arial,sans-serif;font-size:2rem;font-weight:760;letter-spacing:-.045em}
.instrument-section-head p{max-width:440px;margin:0;color:#64748b;font-size:.85rem;line-height:1.65}
.instrument-category-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}
.instrument-category{display:flex;flex-direction:column;min-height:220px;padding:1.35rem;border:1px solid #dbe3ec;background:#fff;text-decoration:none;transition:border-color .2s,transform .2s,box-shadow .2s}
.instrument-category:hover{border-color:#8ca9c7;box-shadow:0 12px 30px rgba(16,36,58,.07);transform:translateY(-3px)}
.instrument-category .number{color:#315b8a;font-family:monospace;font-size:.66rem;font-weight:700;letter-spacing:.1em}
.instrument-category h3{margin:.8rem 0 .5rem;color:#10243a;font-family:Inter,Arial,sans-serif;font-size:1.17rem;font-weight:750;letter-spacing:-.03em}
.instrument-category p{margin:0;color:#64748b;font-size:.81rem;line-height:1.65}
.instrument-category .instrument-tags{display:flex;flex-wrap:wrap;gap:.35rem;margin-top:auto;padding-top:1rem}
.instrument-tags span{padding:.28rem .45rem;border:1px solid #dbe3ec;background:#f8fafc;color:#43566d;font-size:.62rem;font-weight:650}
.instrument-feature{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:2rem;align-items:center;margin:3.2rem 0;padding:1.8rem;border:1px solid #cbd7e3;background:#fff}
.instrument-feature-label{color:#315b8a;font-size:.63rem;font-weight:800;letter-spacing:.12em}
.instrument-feature h3{margin:.65rem 0;color:#10243a;font-family:Inter,Arial,sans-serif;font-size:1.65rem;font-weight:760;letter-spacing:-.04em}
.instrument-feature p{max-width:700px;color:#64748b;font-size:.87rem;line-height:1.7}
.instrument-feature-points{display:flex;flex-wrap:wrap;gap:.4rem;margin-top:1rem}
.instrument-feature-points span{padding:.35rem .55rem;background:#edf3f9;color:#315b8a;font-size:.68rem;font-weight:650}
.instrument-status{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:130px;border-left:1px solid #dbe3ec;text-align:center}
.instrument-status b{display:block;color:#9a6a36;font-size:.7rem;letter-spacing:.08em;text-transform:uppercase}
.instrument-status span{margin-top:.45rem;color:#64748b;font-size:.74rem}
.instrument-method{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;margin:1.5rem 0 2.5rem;border:1px solid #dbe3ec;background:#dbe3ec}
.instrument-method>div{padding:1.25rem;background:#f8fafc}
.instrument-method b{display:block;color:#315b8a;font-size:.68rem;letter-spacing:.08em}
.instrument-method strong{display:block;margin:.45rem 0;color:#10243a;font-size:.9rem}
.instrument-method p{margin:0;color:#64748b;font-size:.76rem;line-height:1.6}
.instrument-note{margin:2rem 0;padding:1rem 1.2rem;border-left:3px solid #d6a477;background:#f1f5f9;color:#64748b;font-size:.79rem;line-height:1.7}
.instrument-footer{display:flex;justify-content:space-between;gap:1.5rem;margin-top:3rem;padding:1.2rem 0;border-top:1px solid #dbe3ec;color:#64748b;font-size:.66rem;letter-spacing:.06em}
@media(max-width:850px){.instrument-hero{grid-template-columns:1fr;padding:2.3rem}.instrument-visual{min-height:230px}.instrument-category-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.instrument-section-head{display:block}.instrument-section-head p{margin-top:.6rem}}
@media(max-width:600px){.instrument-hero{padding:1.5rem;gap:1.7rem}.instrument-hero h1{font-size:2.7rem}.instrument-summary strong{font-size:1.25rem}.instrument-summary>div{padding:.8rem .6rem}.instrument-summary span{font-size:.52rem}.instrument-category-grid{grid-template-columns:1fr}.instrument-category{min-height:180px}.instrument-feature{grid-template-columns:1fr;padding:1.2rem}.instrument-status{align-items:flex-start;min-height:0;padding-top:1rem;border-top:1px solid #dbe3ec;border-left:0;text-align:left}.instrument-method{grid-template-columns:1fr}.instrument-footer{display:block}.instrument-footer span{display:block;margin:.3rem 0}}




/* Instruments visual system */
.instrument-hub,.eis-lab,.eis-analysis{max-width:1180px;margin:0 auto;color:#172b3b}
.instrument-hero{display:grid;grid-template-columns:1.05fr .95fr;gap:3rem;align-items:center;padding:4.2rem 0 3.4rem;border-bottom:1px solid #dce4e9}
.instrument-hero-copy{min-width:0}.instrument-kicker{color:#267b75;font-size:.66rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase}
.instrument-hero h1{margin:1rem 0 1.15rem;color:#122a40;font-family:Inter,Arial,sans-serif;font-size:clamp(2.8rem,5.3vw,4.65rem);font-weight:760;line-height:1.02;letter-spacing:-.06em}
.instrument-hero h1 span{color:#277e79}.instrument-hero-lede{max-width:630px;color:#627487;font-size:1rem;line-height:1.85}
.instrument-hero-actions{display:flex;flex-wrap:wrap;gap:.7rem;margin-top:1.7rem}.instrument-primary,.instrument-secondary{display:inline-flex;align-items:center;gap:1rem;padding:.82rem 1.1rem;border-radius:5px;text-decoration:none;font-size:.76rem;font-weight:750;transition:transform .2s,box-shadow .2s}
.instrument-primary{background:#12334d;color:white!important;box-shadow:0 8px 18px #12334d20}.instrument-primary:hover{background:#1d5368;color:white!important;transform:translateY(-2px)}
.instrument-secondary{border:1px solid #cad7df;color:#24475f!important;background:white}.instrument-secondary:hover{border-color:#267b75;color:#267b75!important}
.instrument-hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:.6rem;margin-top:2rem;color:#8493a1;font-size:.65rem}.instrument-hero-meta i{width:4px;height:4px;border-radius:50%;background:#63aaa2}
.instrument-hero-art{padding:1.1rem;background:linear-gradient(145deg,#102d46,#17435b);border-radius:10px;box-shadow:0 24px 55px #102d4626;color:#d8e5ed}
.hero-art-top,.hero-art-bottom{display:flex;justify-content:space-between;gap:1rem;color:#9bb4c6;font:600 .55rem 'IBM Plex Mono',monospace;letter-spacing:.12em}.hero-art-screen{position:relative;margin:1rem 0;padding:1rem .5rem .5rem;border:1px solid #6b8ba044;border-radius:5px;background:#0d263b}.hero-art-grid{position:absolute;inset:0;background-image:linear-gradient(#7894a51a 1px,transparent 1px),linear-gradient(90deg,#7894a51a 1px,transparent 1px);background-size:25px 25px}.hero-art-screen svg{position:relative;display:block;width:100%;height:auto}.hero-art-readout{position:relative;display:flex;justify-content:space-between;gap:1rem;padding:.7rem .65rem .2rem;border-top:1px solid #7894a533;color:#a9c0d0;font: .55rem 'IBM Plex Mono',monospace}.hero-art-readout strong{color:#dff5ee;font-weight:500}
.instrument-intro-strip{display:grid;grid-template-columns:repeat(3,1fr);margin:1.4rem 0 3.4rem;border:1px solid #dce4e9;border-radius:7px;background:#f7fafb}.instrument-intro-strip>div{display:flex;align-items:center;gap:.8rem;padding:1rem 1.3rem}.instrument-intro-strip>div+div{border-left:1px solid #dce4e9}.instrument-intro-strip strong{color:#267b75;font:700 .7rem 'IBM Plex Mono',monospace}.instrument-intro-strip span{color:#52687a;font-size:.75rem;font-weight:650}
.instrument-section-head{display:flex;justify-content:space-between;align-items:end;gap:2rem;margin:0 0 1.5rem}.instrument-section-head h2,.featured-tool-copy h2{margin:.45rem 0 0;color:#122a40;font-family:Inter,Arial,sans-serif;font-size:clamp(1.8rem,3vw,2.45rem);font-weight:740;line-height:1.12;letter-spacing:-.045em}.instrument-section-head>p{max-width:440px;margin:0;color:#718294;font-size:.82rem;line-height:1.75}
.instrument-category-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}.instrument-category{display:flex;flex-direction:column;min-width:0;overflow:hidden;border:1px solid #dce4e9;border-radius:8px;background:white;transition:transform .2s,box-shadow .2s,border-color .2s}.instrument-category:hover{transform:translateY(-3px);border-color:#a8c7c8;box-shadow:0 14px 35px #17384c12}.category-visual{position:relative;display:flex;align-items:center;justify-content:center;height:145px;overflow:hidden;background:#edf4f7}.category-visual svg{width:78%;max-height:100px}.visual-label{position:absolute;top:1rem;left:1.1rem;color:#72889a;font:600 .53rem 'IBM Plex Mono',monospace;letter-spacing:.12em}.visual-eis{background:linear-gradient(135deg,#e9f5f3,#f2f7fa)}.visual-xrd{background:linear-gradient(135deg,#edf2fa,#f6f8fb)}.visual-sem{background:linear-gradient(135deg,#e9eef1,#f4f6f7)}.visual-thermo{background:linear-gradient(135deg,#f8f1e9,#fbf8f3)}.visual-fuel{background:linear-gradient(135deg,#eaf3f5,#f3f7f8)}.visual-thermal{background:linear-gradient(135deg,#f5f0e9,#faf8f4)}
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/* EIS reference panel typography */
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/* Structured Scientific Instruments page — isolated from legacy styles */
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/* Scientific Instruments library — refreshed collection architecture */
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.si-library-card>strong{display:flex;justify-content:space-between;align-items:center;margin-top:auto;padding-top:.9rem;border-top:1px solid #e4e9ec;color:#315b8a;font-size:.72rem}
.si-library-card>strong i{font-style:normal;font-size:1rem}
.si-library-feature{display:grid;grid-template-columns:1.1fr .9fr;gap:2rem;align-items:center;margin:3.5rem 0;padding:2rem;background:#f3f6f6;border:1px solid #e0e7e7}
.si-library-feature h2{margin:.5rem 0;color:#142d47;font-size:1.8rem;letter-spacing:-.04em}
.si-library-feature p{max-width:620px;color:#647681;font-size:.84rem;line-height:1.8}
.si-library-feature .si-library-eyebrow{color:#587b83}
.si-library-feature-graphic{padding:1.2rem;border:1px solid #dce5e4;background:#173650;color:#dce8ed}
.si-library-equation{padding:.6rem;text-align:center;color:#fff;font-family:Georgia,serif;font-size:1.3rem}
.si-library-feature-graphic svg{display:block;width:100%;height:auto}
.si-library-feature-graphic svg text{fill:#dce8ed;font-size:10px}
.si-library-feature-graphic small{display:block;color:#b6c7d0;font-size:.62rem;text-align:center}
.si-library-principles{margin:3rem 0}
.si-library-principle-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1rem;margin-top:1.1rem}
.si-library-principle-grid>div{padding:1.1rem;border-top:2px solid #7899ad;background:#f7f9fa}
.si-library-principle-grid b{color:#315b8a;font-family:monospace;font-size:.7rem}
.si-library-principle-grid h3{margin:.65rem 0 .4rem;color:#19364f;font-size:.9rem}
.si-library-principle-grid p{margin:0;color:#71808a;font-size:.72rem;line-height:1.65}
.si-library-disclaimer,.si-note{margin:2rem 0;padding:1rem 1.2rem;border-left:3px solid #bd895f;background:#f4f2ec;color:#64737b;font-size:.78rem;line-height:1.75}
.si-library-disclaimer strong,.si-note strong{color:#314957}
.si-library-footer{display:flex;justify-content:space-between;gap:1rem;margin-top:3rem;padding:1rem 0;border-top:1px solid #dce3e8;color:#71818b;font-size:.58rem;font-weight:800;letter-spacing:.1em}
.si-family-page{max-width:1050px;margin:0 auto;color:#263b49}
.si-family-hero{padding:2.4rem 0 1.8rem;border-bottom:1px solid #dce3e8}
.si-family-hero small{color:#587b83;font-size:.66rem;font-weight:800;letter-spacing:.14em}
.si-family-hero h1{margin:.6rem 0;color:#142d47;font-size:clamp(2.1rem,4vw,3.3rem);letter-spacing:-.05em}
.si-family-hero p{max-width:800px;color:#687985;line-height:1.8}
.si-family-page h2{margin:2.3rem 0 .8rem;color:#183650;font-size:1.45rem;letter-spacing:-.025em}
.si-family-page h3{margin:1.5rem 0 .5rem;color:#24465e;font-size:1.08rem}
.si-family-page p,.si-family-page li{color:#526673;font-size:.88rem;line-height:1.8}
.si-family-page table{width:100%;border-collapse:collapse;margin:1rem 0;font-size:.8rem}
.si-family-page th,.si-family-page td{padding:.65rem;border-bottom:1px solid #e1e7e9;text-align:left}
.si-family-page th{background:#f2f5f6;color:#28485c}
.si-family-page .si-note{margin:1.5rem 0}
.si-family-page a{color:#315b8a}
.si-family-page .math{overflow-x:auto}
@media(max-width:760px){.si-library-intro,.si-library-feature{grid-template-columns:1fr;gap:1rem}.si-library-principle-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.si-library-hero-note{line-height:1.8}.si-library-footer{flex-direction:column}.si-library-grid{grid-template-columns:1fr}}
@media(max-width:460px){.si-library-principle-grid{grid-template-columns:1fr}.si-library-card{min-height:0}}


/* EIS simulator entry point and runtime state */
.eis-launch{display:flex;justify-content:space-between;align-items:center;gap:1.2rem;margin:1.25rem 0 1.6rem;padding:1rem 1.2rem;border:1px solid #cbd9df;background:#f2f7f7}
.eis-launch>div{display:flex;flex-direction:column;gap:.25rem}
.eis-launch strong{color:#17364d;font-size:.86rem}
.eis-launch span{color:#637985;font-size:.74rem;line-height:1.55}
.eis-launch a{flex:0 0 auto;display:inline-flex;align-items:center;gap:.65rem;padding:.7rem .9rem;background:#173e54;color:#fff!important;text-decoration:none;font-size:.72rem;font-weight:800}
.eis-launch a:hover{background:#286b70}
.eis-engine-status{display:inline-flex;margin-top:.45rem;color:#8a744b;font-size:.65rem;font-weight:700}
.eis-engine-status.is-ready{color:#26776d}
.eis-engine-status.is-error{color:#a34f39}
@media(max-width:620px){.eis-launch{align-items:stretch;flex-direction:column}.eis-launch a{justify-content:center}}