.rk-sim{display:grid;gap:24px;grid-template-columns:minmax(0,1fr);align-items:start;margin:24px 0}
@media(min-width:960px){.rk-sim{grid-template-columns:minmax(300px,380px) minmax(0,1fr)}.rk-sim__form{position:sticky;top:96px}}
.rk-sim__form,.rk-sim__results{background:#fff;border:1px solid var(--rk-line,#dcd7c9);border-radius:16px;padding:20px}
.rk-fieldset{border:0;padding:0;margin:0 0 20px}.rk-fieldset legend{font-weight:700;color:var(--rk-navy,#142A35);margin-bottom:10px;padding:0}
.rk-opt{font-weight:400;font-size:.8em;color:var(--rk-muted,#53616A)}
.rk-grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}@media(max-width:420px){.rk-grid2{grid-template-columns:1fr}}
.rk-field label{display:block;font-size:.9rem;font-weight:600;margin-bottom:6px}
.rk-field input[type=number],.rk-field select{width:100%;min-height:46px;padding:8px 12px;border:1.5px solid #6f7e87;border-radius:10px;font:inherit;background:#fff;color:inherit}
.rk-field input:focus,.rk-field select:focus{outline:3px solid var(--rk-orange,#E98B38);outline-offset:1px;border-color:var(--rk-navy,#142A35)}
.rk-field.is-invalid input{border-color:#b3261e;background:#fff7f6}
.rk-field__hint{font-size:.82rem;color:var(--rk-muted,#53616A);margin:6px 0 0}
.rk-field__err{font-size:.85rem;color:#b3261e;font-weight:600;margin:6px 0 0}
.rk-stepper{display:flex}.rk-stepper input{border-radius:0;text-align:center;min-width:0;-moz-appearance:textfield}
.rk-stepper input::-webkit-outer-spin-button,.rk-stepper input::-webkit-inner-spin-button{-webkit-appearance:none}
.rk-stepper__btn{flex:0 0 48px;min-height:46px;border:1.5px solid #6f7e87;background:#f4f1e8;font-size:1.3rem;cursor:pointer;color:var(--rk-navy,#142A35)}
.rk-stepper__btn:first-child{border-radius:10px 0 0 10px;border-right:0}.rk-stepper__btn:last-child{border-radius:0 10px 10px 0;border-left:0}
.rk-stepper__btn:hover{background:#ebe6d6}.rk-stepper__btn:active{background:#dfd8c3}.rk-stepper__btn:focus-visible{outline:3px solid var(--rk-orange,#E98B38);outline-offset:1px;position:relative}
.rk-checks{display:grid;gap:8px}.rk-check{display:flex;gap:10px;align-items:center;min-height:44px;padding:6px 10px;border:1px solid var(--rk-line,#dcd7c9);border-radius:10px;cursor:pointer}
.rk-check input{width:20px;height:20px;accent-color:var(--rk-forest,#294B3D)}.rk-check:has(input:checked){background:#eef3ef;border-color:var(--rk-forest,#294B3D)}
.rk-details summary{cursor:pointer;font-weight:700;color:var(--rk-navy,#142A35);min-height:44px;display:flex;align-items:center}
.rk-loading,.rk-notice{padding:14px;background:#f4f1e8;border-radius:10px;margin:0}
.rk-tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:12px;margin-bottom:20px}
.rk-tile{background:var(--rk-ivory,#F7F5EF);border-radius:12px;padding:14px}.rk-tile b{display:block;font-size:1.7rem;line-height:1.1;color:var(--rk-navy,#142A35)}.rk-tile span{font-size:.85rem;color:var(--rk-muted,#53616A)}
.rk-tile--main{background:var(--rk-navy,#142A35)}.rk-tile--main b,.rk-tile--main span{color:#fff}
.rk-badge{display:inline-block;font-size:.72rem;font-weight:700;padding:2px 8px;border-radius:999px;background:#e5efe8;color:#1f4a35;vertical-align:middle}
.rk-badge--warn{background:#fff0d9;color:#7a4a00}.rk-badge--info{background:#e8eef3;color:#27465a}
.rk-res h3{margin:24px 0 8px;font-size:1.05rem;color:var(--rk-navy,#142A35);display:flex;justify-content:space-between;gap:8px;align-items:baseline}
.rk-res h3 a{font-size:.85rem;font-weight:600}
.rk-list{list-style:none;margin:0;padding:0}.rk-list li{display:flex;gap:12px;align-items:flex-start;padding:10px 0;border-bottom:1px solid #ece8da}
.rk-list input{width:20px;height:20px;margin-top:2px;flex:none;accent-color:var(--rk-forest,#294B3D)}.rk-list label{flex:1;cursor:pointer}.rk-list small{display:block;color:var(--rk-muted,#53616A)}
.rk-list .qty{font-weight:700;white-space:nowrap}
.rk-list li.is-hl{background:#fff8ec;margin:0 -8px;padding-left:8px;padding-right:8px;border-radius:8px}
.rk-table{width:100%;border-collapse:collapse}.rk-table th,.rk-table td{text-align:left;padding:10px 6px;border-bottom:1px solid #ece8da;vertical-align:top}.rk-table td:last-child{text-align:right;font-weight:700;white-space:nowrap}
.rk-assump{background:#f4f1e8;border-radius:12px;padding:14px 16px;margin-top:20px;font-size:.9rem}.rk-assump ul{margin:6px 0 0 18px;padding:0}
.rk-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.rk-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:10px 18px;border-radius:10px;border:2px solid transparent;font:inherit;font-weight:700;text-decoration:none;cursor:pointer;transition:background .15s,transform .05s}
.rk-btn--line{border-color:var(--rk-navy,#142A35);color:var(--rk-navy,#142A35);background:#fff}.rk-btn--line:hover{background:#f0ede2}
.rk-btn:active{transform:translateY(1px)}.rk-btn:focus-visible{outline:3px solid var(--rk-orange,#E98B38);outline-offset:2px}
.rk-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.rk-disclaimer{font-size:.85rem;color:var(--rk-muted,#53616A);margin-top:16px}
@media print{.rk-sim{display:block}.rk-sim__form,.rk-actions,.rk-noprint{display:none!important}.rk-sim__results{border:0;padding:0}.rk-list li{break-inside:avoid}}
/* v0.3 : détails repliables et tuiles mobiles */
.rk-details{border:1.5px solid var(--rk-line,#dcd7c9);border-radius:12px;padding:0 14px}
.rk-details summary{list-style:none;justify-content:space-between;gap:10px;font-weight:700}.rk-details summary::-webkit-details-marker{display:none}
.rk-details summary::after{content:"";width:10px;height:10px;border:solid currentColor;border-width:0 2px 2px 0;transform:rotate(45deg);margin:-4px 4px 0 auto;flex:none;transition:transform .15s}
.rk-details[open] summary::after{transform:rotate(-135deg);margin-top:4px}
.rk-details summary .rk-opt{margin-left:8px;margin-right:auto}.rk-details[open]{padding-bottom:14px}
@media(max-width:560px){.rk-tiles{grid-template-columns:1fr 1fr}.rk-tile--main{grid-column:1/-1;order:-1}}

.rk-table th small{font-weight:400;color:var(--rk-muted,#53616A);font-size:.85rem;line-height:1.4}

/* v0.5 : groupes repliables, barre mobile, résumé, tableaux d'eau */
.rk-sum{background:var(--rk-ivory,#F7F5EF);border-radius:12px;padding:10px 14px;margin:0 0 14px;font-size:.92rem}.rk-sum b{display:block;font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--rk-muted,#53616A);margin-bottom:2px}
.rk-toolbar{display:flex;flex-wrap:wrap;gap:8px;margin:4px 0 12px;align-items:center}
.rk-btn--solid{background:var(--rk-navy,#142A35);color:#fff}.rk-btn--solid:hover{background:var(--rk-forest,#294B3D)}
.rk-btn--text{border-color:transparent;background:transparent;color:var(--rk-forest,#294B3D);text-decoration:underline;text-underline-offset:3px;padding-inline:8px}
.rk-toolbar .rk-btn--text{margin-left:auto}
.rk-progress{margin:0 0 6px;font-size:.88rem;color:var(--rk-muted,#53616A)}.rk-progress span{font-weight:800;color:var(--rk-navy,#142A35)}
.rk-cg{border-top:1px solid #ece8da}.rk-cg:last-of-type{border-bottom:1px solid #ece8da}
.rk-cg>summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:10px;min-height:52px;font-weight:800;color:var(--rk-navy,#142A35);font-family:var(--rk-ui,inherit)}
.rk-cg>summary::-webkit-details-marker{display:none}
.rk-cg>summary::before{content:"";width:9px;height:9px;border:solid currentColor;border-width:0 2px 2px 0;transform:rotate(-45deg);transition:transform .15s;flex:none;margin:0 4px 0 2px}
.rk-cg[open]>summary::before{transform:rotate(45deg)}
.rk-cg__t{flex:1}.rk-cg__n{font-weight:600;font-size:.85rem;color:var(--rk-muted,#53616A);background:#f4f1e8;border-radius:999px;padding:2px 10px}
.rk-cg>summary:focus-visible{outline:3px solid var(--rk-orange,#E98B38);outline-offset:-3px;border-radius:8px}
.rk-cg__more{display:inline-block;margin:0 0 10px 25px;font-size:.88rem;font-weight:600}
.rk-cg .rk-list{margin-bottom:4px}
.rk-list li:has(input:checked) label{color:var(--rk-muted,#53616A);text-decoration:line-through;text-decoration-color:rgba(0,0,0,.25)}
.rk-bar{position:fixed;left:12px;right:12px;bottom:12px;z-index:60;display:flex;align-items:center;gap:12px;justify-content:space-between;background:var(--rk-navy,#142A35);color:#fff;border-radius:16px;padding:10px 10px 10px 16px;box-shadow:0 10px 30px rgba(0,0,0,.35)}
.rk-bar[hidden]{display:none}.rk-bar__s{font-size:.88rem;font-weight:600;line-height:1.3}.rk-bar .rk-btn{min-height:44px;padding:8px 14px;font-size:.9rem;white-space:nowrap;background:var(--rk-orange,#E98B38);color:var(--rk-navy,#142A35)}
@media(min-width:760px){.rk-bar{display:none!important}}
.rk-sim__results{scroll-margin-top:84px}.rk-sim__results:focus{outline:none}.rk-sim__results:focus-visible{outline:3px solid var(--rk-orange,#E98B38)}
.rk-res__h{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:1rem;margin:22px 0 6px}
.rk-table th small{display:block;margin-top:3px}
.rk-table--total th,.rk-table--total td{border-bottom:0;border-top:2px solid var(--rk-navy,#142A35);font-size:1.1rem;color:var(--rk-navy,#142A35)}
.rk-muted-note{font-size:.9rem;color:var(--rk-muted,#53616A);margin:0 0 8px}
@media print{.rk-bar{display:none!important}.rk-cg>summary::before{display:none}.rk-cg{border-top:0}.rk-cg>summary{min-height:0;margin-top:10px}}
.rk-toolbar .rk-btn{min-height:44px;padding:8px 16px;font-size:.92rem}