.salt-page{--salt-paper: #f4f0e6;--salt-white: #fffdf7;--salt-ink: #112c35;--salt-muted: #4d6870;--salt-line: #bdd0cf;--salt-blue: #0f6775;--salt-blue-deep: #0a4653;--salt-tide: #84c8c8;--salt-crystal: #e7e5d8;--salt-coral: #d45d4d;--salt-sun: #e4b84a;color:var(--salt-ink);font-variant-numeric:tabular-nums}.salt-page *,.salt-page *:before,.salt-page *:after{box-sizing:border-box}.salt-page button,.salt-page input,.salt-page select{font:inherit}.salt-page button,.salt-page summary,.salt-page label{-webkit-tap-highlight-color:transparent}.salt-hero{position:relative;display:grid;min-height:300px;overflow:hidden;border:1px solid color-mix(in srgb,var(--salt-blue) 45%,transparent);background:linear-gradient(90deg,color-mix(in srgb,var(--salt-blue-deep) 96%,transparent),color-mix(in srgb,var(--salt-blue) 92%,transparent)),var(--salt-blue-deep);color:#fff;isolation:isolate}.salt-hero:before,.salt-hero:after{content:"";position:absolute;inset:auto 0 0;height:82px;opacity:.24;background:linear-gradient(27deg,transparent 48%,rgba(255,255,255,.65) 49% 50%,transparent 51%) 0 0 / 130px 74px,linear-gradient(-27deg,transparent 48%,rgba(255,255,255,.45) 49% 50%,transparent 51%) 0 0 / 130px 74px;z-index:-1}.salt-hero:after{inset:0 auto 0 58%;width:1px;height:100%;background:#ffffff1f}.salt-hero__copy{align-self:center;padding:38px 26px;z-index:1}.salt-kicker,.mode-label{display:flex;align-items:center;gap:8px;color:#b9e0dd;font-size:11px;font-weight:700;letter-spacing:.16em;text-transform:uppercase}.salt-hero h1{max-width:620px;margin:16px 0 12px;font-family:Noto Sans TC,DM Sans,sans-serif;font-size:clamp(1.9rem,6.5vw,3.75rem);font-weight:700;letter-spacing:-.055em;line-height:.98}.salt-hero__copy>p{max-width:600px;margin:0;color:#ffffffc7;font-size:clamp(15px,2vw,18px);line-height:1.75}.salt-hero__mark{display:none;align-items:center;justify-content:center;padding:28px}.salt-hero__mark svg{width:min(100%,310px);filter:drop-shadow(0 18px 28px rgba(0,0,0,.18))}.pan{stroke:#ffffffa3;stroke-width:1.5}.pan--back{fill:#dce3d9}.pan--left{fill:#89b7b6}.pan--right{fill:#5f969a}.pan--top{fill:#f5f1df}.pan-line{fill:none;stroke:#7b9d9b;stroke-width:1.3}.tide{fill:none;stroke:#a9dbd7;stroke-width:5;stroke-linecap:round}.sun{fill:var(--salt-sun)}.salt-layout{display:grid;gap:18px;align-items:start;margin-top:18px}.salt-panel,.precision-panel,.method-section{border:1px solid var(--salt-line);background:var(--salt-white)}.salt-input-panel{padding:24px 18px}.section-heading,.precision-section__heading,.precision-intro{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.mode-label{color:var(--salt-blue)}.precision-intro h2,.precision-section__heading h3{margin:6px 0 0;color:var(--salt-ink);font-size:clamp(1.25rem,4vw,1.7rem);line-height:1.2}.age-grid,.compact-grid,.uncertainty-grid{display:grid;grid-template-columns:1fr;gap:14px}.age-grid{margin-top:24px}.field{display:flex;flex-direction:column;gap:8px;min-width:0;color:var(--salt-ink);font-size:14px;font-weight:650}.field small{color:var(--salt-muted);font-size:11px;font-weight:450;line-height:1.5}.number-shell{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;min-height:50px;border:1px solid var(--salt-line);background:var(--salt-white)}.number-shell:focus-within,.field>input:focus,.field select:focus,.stage-field input:focus,.precision-toolbar button:focus-visible,.salt-page button:focus-visible,.salt-page summary:focus-visible{outline:3px solid color-mix(in srgb,var(--salt-sun) 75%,white);outline-offset:2px}.number-shell input{width:100%;min-width:0;border:0;background:transparent;color:var(--salt-ink);padding:11px 13px;font-size:19px;font-weight:700;outline:0}.number-shell>span{padding:0 13px;color:var(--salt-muted);font-size:13px}.food-fieldset{min-width:0;margin:24px 0 0;padding:0;border:0}.food-fieldset legend{margin-bottom:10px;color:var(--salt-ink);font-size:14px;font-weight:650}.food-options{display:grid;grid-template-columns:1fr;gap:9px}.food-choice{position:relative;display:grid;grid-template-columns:42px 1fr;align-items:center;gap:11px;min-height:68px;padding:10px 13px;border:1px solid var(--salt-line);background:var(--salt-white);cursor:pointer}.food-choice:has(input:checked){border-color:var(--salt-blue);box-shadow:inset 4px 0 0 var(--salt-blue);background:#edf7f4}.food-choice:has(input:focus-visible){outline:3px solid color-mix(in srgb,var(--salt-sun) 75%,white);outline-offset:2px}.food-choice input{position:absolute;opacity:0}.food-choice__icon{display:grid;place-items:center;width:38px;height:38px;border:1px solid var(--salt-line);border-radius:50%;background:#fff;color:var(--salt-blue-deep);font-weight:800}.food-choice strong,.food-choice small{display:block}.food-choice strong{font-size:14px}.food-choice small{margin-top:3px;color:var(--salt-muted);font-size:11px}.bowls-block{display:grid;gap:12px;margin-top:24px}.quick-row{display:grid;grid-template-columns:repeat(4,1fr);gap:7px}.quick-row button,.result-actions button,.precision-toolbar button,.precision-section__heading button,.preset-apply button{min-height:44px;border:1px solid var(--salt-line);background:transparent;color:var(--salt-blue-deep);cursor:pointer;font-size:12px;font-weight:700}.quick-row button:hover,.quick-row button.is-active{border-color:var(--salt-blue);background:var(--salt-blue);color:#fff}.precision-toggle{display:flex;align-items:center;justify-content:space-between;width:100%;min-height:58px;margin-top:18px;padding:11px 14px;border:1px solid var(--salt-blue);background:transparent;color:var(--salt-blue-deep);cursor:pointer;text-align:left;font-weight:750}.precision-toggle small{display:block;margin-bottom:3px;color:var(--salt-muted);font-size:10px;font-weight:550;letter-spacing:.12em;text-transform:uppercase}.precision-toggle svg,.hardcore-details summary svg{fill:none;stroke:currentColor;stroke-width:2;transition:transform .25s ease}.precision-toggle[aria-expanded=true] svg,.hardcore-details[open] summary svg{transform:rotate(180deg)}.result-column{min-width:0}.result-card{position:relative;min-height:620px;overflow:hidden;padding:24px 18px;border:1px solid #0a4653;background:linear-gradient(transparent 95%,#ffffff14 95%) 0 0 / 100% 42px,var(--salt-blue-deep);color:#fff;isolation:isolate}.result-card:after{content:"";position:absolute;right:-75px;bottom:-90px;width:250px;height:250px;border:44px solid rgba(255,255,255,.055);border-radius:50%;z-index:-1}.result-card__topline{display:flex;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid rgba(255,255,255,.2);color:#b9e0dd;font-size:10px;font-weight:700;letter-spacing:.12em;text-transform:uppercase}.result-card__stamp{position:absolute;top:56px;right:17px;display:grid;place-items:center;width:60px;height:60px;border:2px solid var(--salt-coral);border-radius:50%;color:#ff8c7e;font-size:13px;font-weight:800;letter-spacing:.14em;transform:rotate(8deg)}.result-card__question{margin:30px 74px 8px 0;color:#b9e0dd;font-size:12px}.result-card h2{max-width:480px;margin:0;color:#fff;font-size:clamp(2.25rem,8.5vw,4.75rem);font-weight:800;letter-spacing:-.065em;line-height:.98}.result-card h2+p{max-width:520px;min-height:50px;margin:15px 0 0;color:#ffffffba;font-size:14px;line-height:1.65}.result-metrics{display:grid;grid-template-columns:1fr 1fr;margin:24px 0 0;border-top:1px solid rgba(255,255,255,.18);border-left:1px solid rgba(255,255,255,.18)}.result-metrics>div{min-width:0;padding:15px 12px;border-right:1px solid rgba(255,255,255,.18);border-bottom:1px solid rgba(255,255,255,.18)}.result-metrics dt{color:#b9e0dd;font-size:10px;letter-spacing:.06em}.result-metrics dd{margin:7px 0 0;color:#fff;font-size:clamp(1.15rem,5vw,1.85rem);font-weight:750;line-height:1}.result-metrics dd small{margin-left:4px;color:#ffffff94;font-size:10px;font-weight:500}.result-metrics__ratio dd{color:#f3c95f}.crossover-note{display:grid;grid-template-columns:auto 1fr;gap:10px;margin-top:18px;padding:13px;background:#ffffff14}.crossover-note>span{color:#f3c95f;font-size:21px}.crossover-note p,.result-disclaimer{margin:0;font-size:11px;line-height:1.6}.result-disclaimer{margin-top:15px;color:#ffffff7a}.range-results{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;margin-top:14px;background:#fff3}.range-results>div{padding:10px 8px;background:#153f49;text-align:center}.range-results small,.range-results strong{display:block}.range-results small{color:#b9e0dd;font-size:9px}.range-results strong{margin-top:4px;color:#fff;font-size:14px}.result-messages{margin-top:14px;padding:12px;border:1px solid rgba(255,255,255,.28);background:#d45d4d2e;font-size:11px;line-height:1.55}.result-messages ul{margin:6px 0 0;padding-left:18px}.result-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:9px}.result-actions button{background:var(--salt-white)}.result-actions .action-primary{grid-column:1 / -1;display:flex;align-items:center;justify-content:center;gap:8px;border-color:var(--salt-coral);background:var(--salt-coral);color:#fff}.result-actions svg{fill:none;stroke:currentColor;stroke-width:1.8}.action-status{min-height:20px;margin:6px 0 0;color:var(--salt-muted);font-size:11px;text-align:center}.precision-reveal{display:grid;grid-template-rows:0fr;margin-top:18px;transition:grid-template-rows .42s ease}.precision-reveal.is-open{grid-template-rows:1fr}.precision-reveal>div{overflow:hidden}.precision-panel{padding:24px 18px;background:var(--salt-paper)}.precision-intro{flex-direction:column;padding-bottom:22px;border-bottom:1px solid var(--salt-line)}.precision-intro p{max-width:700px;margin:10px 0 0;color:var(--salt-muted);font-size:13px;line-height:1.7}.mode-label--dark{color:var(--salt-coral)}.precision-toolbar{display:flex;flex-wrap:wrap;gap:7px}.precision-toolbar button{min-height:40px;padding:8px 11px;background:var(--salt-white)}.precision-grid{display:grid;gap:16px;margin-top:18px}.precision-section{min-width:0;padding:17px;border:1px solid var(--salt-line);background:var(--salt-white)}.precision-section__heading{align-items:center;padding-bottom:14px;border-bottom:1px solid var(--salt-line)}.precision-section__heading>div{display:flex;align-items:center;gap:9px}.precision-section__heading>div>span{color:var(--salt-coral);font-size:11px;font-weight:800}.precision-section__heading h3{margin:0;font-size:17px}.precision-section__heading button{min-height:38px;padding:7px 9px}.compact-grid{margin-top:15px}.field--precision select,.field--precision>input{width:100%;min-height:50px;border:1px solid var(--salt-line);border-radius:0;background:var(--salt-white);color:var(--salt-ink);padding:10px 11px}.preset-apply{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:10px;padding:9px 10px;border-left:3px solid var(--salt-sun);background:#fbf5df}.preset-apply p{margin:0;color:var(--salt-muted);font-size:10px}.preset-apply button{min-height:34px;padding:6px 9px;background:var(--salt-white);font-size:10px}.final-weight{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:50px;margin-top:22px;padding:10px 12px;border:1px dashed var(--salt-blue);color:var(--salt-muted);font-size:12px}.final-weight strong{color:var(--salt-blue-deep);font-size:16px}.stage-list{display:grid;gap:10px;margin-top:15px}.stage-card{display:grid;gap:11px;padding:13px;border:1px solid var(--salt-line);border-left:4px solid var(--salt-tide);background:#f8faf7}.stage-card__top{display:flex;align-items:center;justify-content:space-between;gap:12px}.stage-card__top strong{color:var(--salt-blue-deep);font-size:12px}.stage-delete{min-width:44px;min-height:34px;border:0;background:transparent;color:var(--salt-coral);cursor:pointer;font-size:11px;font-weight:700}.stage-fields{display:grid;grid-template-columns:1fr 1fr;gap:8px}.stage-field{display:flex;flex-direction:column;gap:5px;color:var(--salt-muted);font-size:10px}.stage-field input{width:100%;min-width:0;min-height:44px;border:1px solid var(--salt-line);border-radius:0;background:var(--salt-white);color:var(--salt-ink);padding:8px 9px;font-size:14px;font-weight:650}.hardcore-details{margin-top:16px;border:1px solid var(--salt-line);background:var(--salt-white)}.hardcore-details>summary{display:flex;align-items:center;justify-content:space-between;min-height:64px;padding:13px 16px;cursor:pointer;color:var(--salt-blue-deep);font-weight:750;list-style:none}.hardcore-details>summary::-webkit-details-marker,.method-section summary::-webkit-details-marker,.full-assumptions>summary::-webkit-details-marker{display:none}.hardcore-details summary small{display:block;color:var(--salt-coral);font-size:9px;letter-spacing:.14em;text-transform:uppercase}.hardcore-details__body{padding:0 16px 16px;border-top:1px solid var(--salt-line)}.switch-field{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:76px;margin-top:15px;padding:12px;border:1px solid var(--salt-line);color:var(--salt-ink)}.switch-field strong,.switch-field small{display:block}.switch-field small{margin-top:4px;color:var(--salt-muted);font-size:10px;line-height:1.45}.switch-field input{width:46px;height:26px;accent-color:var(--salt-blue)}.uncertainty-grid{margin-top:12px}.method-section{margin-top:18px}.method-section>details>summary{display:flex;align-items:center;justify-content:space-between;min-height:76px;padding:16px 18px;cursor:pointer;list-style:none}.method-section summary small,.method-section summary strong{display:block}.method-section summary small{color:var(--salt-blue);font-size:9px;font-weight:750;letter-spacing:.14em;text-transform:uppercase}.method-section summary strong{margin-top:3px;font-size:20px}.method-section>details[open]>summary>span:last-child{transform:rotate(45deg)}.method-body{display:grid;gap:18px;padding:0 18px 20px;border-top:1px solid var(--salt-line)}.method-short h3,.full-assumptions h3{margin:18px 0 9px;font-size:14px}.method-short ul,.source-list{margin:0;padding-left:18px;color:var(--salt-muted);font-size:12px;line-height:1.8}.full-assumptions{border-top:1px solid var(--salt-line)}.full-assumptions>summary{padding:15px 0 4px;color:var(--salt-blue);cursor:pointer;font-size:12px;font-weight:750}.full-assumptions p{margin:7px 0;color:var(--salt-muted);font-size:12px;line-height:1.7}.full-assumptions code{padding:2px 4px;background:var(--salt-paper);color:var(--salt-blue-deep)}.source-list{display:grid;gap:10px;list-style:none;padding:0}.source-list li{padding-left:11px;border-left:3px solid var(--salt-tide)}.source-list a,.source-list span{display:block}.source-list a{color:var(--salt-blue);font-weight:700}.standards-note{margin:18px 0 0;padding:15px 4px;color:var(--salt-muted);font-size:10px;line-height:1.65;text-align:center}.standards-note p{margin:0}.standards-note p+p{margin-top:6px}@media(min-width:560px){.age-grid,.compact-grid,.uncertainty-grid{grid-template-columns:1fr 1fr}.food-options{grid-template-columns:repeat(3,1fr)}.food-choice{grid-template-columns:1fr;align-content:start;min-height:128px}.bowls-block{grid-template-columns:minmax(0,1fr) minmax(220px,.8fr);align-items:end}.stage-fields{grid-template-columns:repeat(4,1fr)}.compact-grid--three{grid-template-columns:repeat(3,1fr)}}@media(min-width:800px){.salt-hero{grid-template-columns:1.35fr .65fr}.salt-hero__copy{padding:54px 50px}.salt-hero__mark{display:flex}.salt-input-panel,.precision-panel{padding:30px}.result-card{padding:28px}.method-body{grid-template-columns:.8fr 1.2fr}.full-assumptions{border-top:0;border-left:1px solid var(--salt-line);padding-left:18px}}@media(min-width:980px){.salt-layout{grid-template-columns:minmax(0,1.08fr) minmax(390px,.92fr)}.result-column{position:sticky;top:100px}.precision-grid{grid-template-columns:1fr 1fr}}@media(prefers-color-scheme:dark){.salt-page{--salt-paper: #102c34;--salt-white: #132f37;--salt-ink: #eff5ed;--salt-muted: #afc4c1;--salt-line: #35555a;--salt-crystal: #28454a}.salt-hero,.result-card{border-color:#3d6c72}.food-choice:has(input:checked){background:#193e44}.food-choice__icon,.quick-row button,.result-actions button,.precision-toolbar button,.preset-apply button{background:#17363e;color:#b9e0dd}.stage-card{background:#17363e}.preset-apply{background:#3c3824}.precision-toggle,.precision-section__heading button,.hardcore-details>summary,.full-assumptions>summary,.source-list a,.final-weight strong{color:#9ed9d5}.mode-label{color:#82d0cd}}@media(prefers-reduced-motion:reduce){.salt-page *,.salt-page *:before,.salt-page *:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}@media print{.salt-input-panel,.result-actions,.precision-reveal,.method-section,.standards-note,body>header,body>footer{display:none!important}.salt-layout{display:block}.result-column{max-width:560px;margin:0 auto}}