/* Readability: larger controls and darker text across every tool. */
:root{--ink:#152a49;--muted:#455b79}body{font-size:16px;line-height:1.65;color:var(--ink)}.header-inner{min-height:90px;height:auto;padding-top:17px;padding-bottom:17px}.brand-name{font-size:30px}.brand-tagline{font-size:9px;letter-spacing:1.4px;color:#c5d3ee}.header-search input{font-size:16px;padding:12px 0}.header-search input::placeholder{color:#c5d3ed}.header-search{border-color:#627491;background:#20314e}.search-key{color:#d1def4;border-color:#6b7d9c}.favorites-button{font-size:15px;padding:11px 15px;color:#f0f5ff;border-color:#627694;background:#243653}.eyebrow{font-size:12px;color:#465e82;letter-spacing:1px}.app-intro{padding:27px 0}h1{font-size:34px;line-height:1.3}h1 span{color:#4c6080}.privacy-tag{font-size:13px;color:#425b7a}.main-tabs button{font-size:17px;padding:14px 22px;color:#465d7e}.main-tabs button[aria-selected=true]{color:#2446b5}.main-tabs small{font-size:12px;color:#3f5995;background:#e0e8ff}.sidebar{padding:18px 12px}.sidebar-title{font-size:11px;color:#bfd0ec;letter-spacing:1px;padding-bottom:13px}#categorySearch{font-size:14px;padding:11px;color:white;border-color:#627696}#categorySearch::placeholder{color:#becde6}#categorySearchStatus{font-size:13px;color:#d1def3}.category{font-size:15px;min-height:44px;padding:10px;color:#d4e0f5;gap:9px}.category .icon{font-size:22px}.category.active{background:#3153c9;border-color:#819afa;color:white}.category .arrow{color:#c4d5f4}#categories{max-height:650px}.sidebar-foot{font-size:12px;line-height:1.9;color:#c0d0ec}.converter{padding:26px 29px}.converter-top{padding-bottom:20px}.tool-header h2{font-size:27px;color:#152b4e}.subtitle{font-size:14px;color:#4b607e;line-height:1.6}.mode-tabs{border-color:#c9d4e8;background:#e8edf7}.mode-tabs button{font-size:14px;padding:9px 15px;color:#4d6080}.mode-tabs button[aria-selected=true]{color:#244780}.mode-tabs span{font-size:11px;color:#455e86}.quick-entry{padding:16px 18px;background:#f0f4fc;border-color:#cdd9ef}.quick-entry-title{font-size:14px;color:#39537b}.quick-entry-title small{font-size:12px;color:#4c6386}.smart-input-row input{font-size:16px;padding:12px 14px;color:#203f70;border-color:#9eb2d5}.smart-input-row input::placeholder{color:#536786}.smart-input-row button{font-size:14px;padding:12px 18px;background:#2e4fc5}.smart-feedback{font-size:13px;color:#455f82;line-height:1.6;margin-top:9px}.query-suggestions button{font-size:14px;color:#62480b;padding:9px 12px}.field-label{font-size:12px;color:#405a7e;letter-spacing:.5px;line-height:1.5;margin-bottom:9px}.field{padding:20px 22px;min-height:244px;border-color:#a9bddf}.box-top{font-size:10px;color:#3f5b84;letter-spacing:.8px;margin-bottom:17px}.box-icon{width:25px;height:25px;font-size:17px;color:#3659b3}.unit-pill{font-size:14px;color:#2d4eaa;background:#dfe8ff;padding:3px 8px}.value,.result-value{font-size:42px;min-height:65px;line-height:1.5;color:#122b51;letter-spacing:-1px}.select-caption{font-size:11px;letter-spacing:.7px;color:#465f82;margin-top:18px;padding-top:12px}.field select{font-size:16px;color:#2f4d78;font-weight:650;padding-top:5px;min-height:35px}.destination-field .box-top{color:#d0dff8}.destination-field .box-icon,.destination-field .unit-pill{background:#ffffff18;color:#e0eaff}.destination-field .select-caption{color:#d0dff6}.destination-field select{color:white}.controls{font-size:13px;color:#465e7f;margin:15px 0 18px;line-height:1.6;align-items:center}.controls label{font-size:13px}.controls select{font-size:14px;color:#324c73;border-color:#b4c4de;padding:5px 8px}.result-panel{padding:17px 18px;border-color:#c1d1ed}.equation{font-size:19px;color:#244471}.formula{font-size:13px;color:#4c6386;line-height:1.6;margin-top:5px}.result-actions{padding-top:12px;gap:8px}.result-actions button,.save-actions button{font-size:13px;padding:9px 12px;min-height:40px;color:#345780;border-color:#afc1e1}.save-actions{gap:8px}.saved-status{font-size:13px;color:#3a5b89;margin-top:9px}.all-heading h3{font-size:14px;color:#3a557c}.all-heading>span{font-size:11px;color:#4d6588}.results-grid{gap:10px}.unit-result{padding:13px;border-color:#c7d4e9}.unit-result strong{font-size:16px;color:#244771}.unit-result span{font-size:12px;color:#4e6585;line-height:1.6;margin-top:5px}.show-all{font-size:14px;color:#2e51aa;padding:12px 0}.quick-title,.shortcut-title{font-size:11px;color:#4a6283;letter-spacing:1px}.quick{gap:8px}.quick button{font-size:13px;color:#3b587f;border-color:#becde5;padding:8px 11px;min-height:39px}.popular button{padding:15px;border-color:#bdcde5}.popular strong{font-size:14px;color:#34567e;line-height:1.5}.popular small{font-size:12px;color:#506887;line-height:1.6;margin-top:6px}.mini-icon{font-size:23px;color:#4164bd}.shortcut-section{margin-top:27px}.batch-content{padding:19px}.batch-content label{font-size:14px;color:#455f83;line-height:1.7}.batch-content textarea{font-size:16px;color:#243f6a;border-color:#a4b8da;padding:14px;min-height:165px}.batch-content textarea::placeholder{color:#5b6e8c}.batch-actions button{font-size:14px;padding:10px 15px;color:#36547e}.batch-actions button:first-child{color:white;background:#2e4fc5}#batchStatus{font-size:13px;color:#425d81;line-height:1.7}#batchOutput table{font-size:14px}#batchOutput td,#batchOutput th{padding:10px}.tool-context h2{font-size:38px;color:#1b3254}.tool-context p{font-size:16px;color:#475f7e;line-height:1.85}.context-tip{font-size:14px;color:#3a5781;line-height:1.7}.special-heading h2{font-size:26px;color:#1b3254}.special-heading p{font-size:14px;color:#4b6383;line-height:1.6}.special-card label{font-size:13px;color:#3e587b;line-height:1.6}.special-card input,.special-card select{font-size:16px;color:#23416b;padding:12px 10px;border-color:#a9bddc;min-height:46px}.special-result{font-size:23px;padding:20px}.special-note{font-size:13px;color:#4c6281;line-height:1.8}.source-link{font-size:13px;color:#2b51aa}.app-footer{font-size:13px;color:#4e6585;line-height:1.7}.app-footer strong{font-size:18px;color:#355179}.app-footer button{font-size:13px;color:#3e5b83;padding:7px 2px}.dialog-header h2{font-size:26px}.saved-content h4{font-size:16px;color:#3d597e}.saved-row button{font-size:14px;min-height:43px;color:#35577e}.clear-button{font-size:14px;color:#36577e;padding:10px 13px}.empty-saved,.workspace-note{font-size:14px;color:#4c6383;line-height:1.8}.methodology{font-size:15px;line-height:1.85;color:#3f5778}.methodology summary{font-size:16px;color:#2d486f}.tester-panel{font-size:15px;color:#405c80;line-height:1.8}.tester-panel label{font-size:14px;color:#365274}.tester-panel input,.tester-panel select,.tester-panel textarea{font-size:16px;color:#29466f;padding:12px;border-color:#a8bbd9}.tester-panel button{font-size:14px;padding:12px 16px}.tester-note,#feedbackStatus{font-size:13px;color:#4e6585}.header-search #globalSearchStatus:not(:empty){font-size:14px;color:#2d4c77}#toast{font-size:14px}.no-results{font-size:14px;color:#486184}.error{color:#a52f24!important}button:disabled{opacity:.65}.converter[data-mode=batch] .field{min-height:95px;padding:15px 18px}.converter[data-mode=batch] .field select{font-size:16px}
@media(min-width:721px) and (max-width:1100px){.workspace{grid-template-columns:190px minmax(0,1fr)}.converter{padding:22px}.field{padding:17px;min-height:235px}.box-top{font-size:9px;letter-spacing:.4px}.field select{font-size:15px}.value,.result-value{font-size:34px}.field-label{font-size:11px}.converter-top{flex-wrap:wrap;gap:13px}.controls{flex-wrap:wrap}.popular{grid-template-columns:repeat(2,minmax(0,1fr))}.shortcut-section{margin-left:206px}.header-inner{gap:22px}.favorites-button{font-size:14px}}
@media(max-width:720px){.header-inner{padding:16px 20px;gap:15px}.brand-name{font-size:28px}.brand-tagline{font-size:8px}.header-search input{font-size:16px}.favorites-button{font-size:24px;padding:4px 12px}.app-intro{padding:23px 4px}.eyebrow{font-size:10px;letter-spacing:.8px}h1{font-size:29px}h1 span{color:#4a6080}.privacy-tag{font-size:0}.main-tabs button{font-size:14px;min-height:49px;padding:12px 8px;color:#3d5578}.sidebar{padding:13px}.mobile-category-label{font-size:12px;color:#cfdef5;letter-spacing:.5px}#mobileCategory{font-size:16px;color:white;border-color:#6c80a1;padding:12px;min-height:48px}.converter{padding:21px 17px}.converter-top{gap:14px;flex-wrap:wrap}.tool-header h2{font-size:24px}.subtitle{font-size:14px;max-width:none}.mode-tabs{margin-left:0}.mode-tabs button{font-size:14px;padding:10px 16px;min-height:41px}.quick-entry{padding:14px;margin:0 0 22px}.quick-entry-title{font-size:13px;flex-wrap:wrap}.quick-entry-title small{font-size:12px;letter-spacing:0}.smart-input-row{gap:7px}.smart-input-row input{font-size:16px;padding:12px 10px}.smart-input-row button{font-size:13px;padding:12px}.smart-feedback{font-size:13px;line-height:1.65}.query-suggestions button{font-size:14px}.fields{grid-template-columns:1fr;gap:8px}.field-label{font-size:12px;letter-spacing:.4px;min-height:0;margin-bottom:8px}.field{padding:18px 20px;min-height:205px}.box-top{font-size:10px;letter-spacing:.6px;margin-bottom:12px}.box-icon{width:25px;height:25px;font-size:16px}.unit-pill{font-size:14px;padding:3px 8px}.value,.result-value{font-size:38px;min-height:57px;line-height:1.5;letter-spacing:-.9px}.select-caption{font-size:11px;margin-top:14px;padding-top:10px}.field select{font-size:16px;min-height:36px}.swap{margin:0 auto;width:43px;height:42px;border-radius:10px;transform:rotate(90deg);font-size:24px}.controls{font-size:13px;gap:10px;line-height:1.65;margin-top:14px;align-items:start}.controls label{font-size:13px}.controls select{font-size:16px}.result-panel{padding:16px}.equation{font-size:18px}.formula{font-size:13px}.result-actions{gap:8px}.result-actions button,.save-actions button{font-size:13px;padding:9px 11px;min-height:41px}.save-actions{gap:8px}.all-heading h3{font-size:14px;line-height:1.5}.unit-result{padding:12px}.unit-result strong{font-size:16px}.unit-result span{font-size:12px}.show-all{font-size:14px;min-height:44px}.quick-title,.shortcut-title{font-size:11px}.quick button{font-size:13px;min-height:40px}.popular{grid-template-columns:1fr 1fr;gap:10px}.popular button{padding:14px}.popular strong{font-size:14px}.popular small{font-size:12px}.mini-icon{font-size:23px}.batch-content{padding:15px}.batch-content label{font-size:14px}.batch-content textarea{font-size:16px}.batch-actions{flex-wrap:wrap}.batch-actions button{font-size:14px;min-height:43px}#batchStatus{font-size:13px}.converter[data-mode=batch] .fields{grid-template-columns:1fr}.converter[data-mode=batch] .field{padding:15px 18px;min-height:90px}.converter[data-mode=batch] .field select{font-size:16px}.converter[data-mode=batch] .swap{margin:0 auto}.tool-context h2{font-size:32px}.tool-context p{font-size:16px}.special-card{padding:23px 19px}.special-heading h2{font-size:25px}.special-heading p{font-size:14px}.special-card label{font-size:13px}.special-card input,.special-card select{font-size:16px;min-height:46px}.special-fields,.special-fields.two{grid-template-columns:1fr;gap:14px}.special-fields>div:first-child{grid-column:auto}.special-result{font-size:21px;padding:18px}.special-note{font-size:13px}.source-link{font-size:13px;line-height:1.7}.app-footer{font-size:13px}.app-footer button{font-size:13px;min-height:40px}.app-footer strong{font-size:18px}.dialog-header h2{font-size:25px}.saved-row button{font-size:14px}.methodology{font-size:15px}.tester-panel{font-size:15px}.tester-panel label{font-size:14px}.tester-panel input,.tester-panel select,.tester-panel textarea{font-size:16px}.tester-panel button{font-size:14px}.tester-note,#feedbackStatus{font-size:13px}}
h1{font-size:32px}h1 span{display:block;font-size:19px;letter-spacing:0;margin-top:7px;color:#485f80}.search-guide{max-width:1250px;margin:28px auto 15px;border:1px solid #cad7eb;border-radius:10px;background:#fff;padding:18px 22px;color:#3c5578}.search-guide summary{font-size:15px;font-weight:650;cursor:pointer}.guide-grid{display:grid;grid-template-columns:1fr 1fr;gap:35px;margin-top:20px}.guide-grid h2{font-size:20px;color:#203b62}.guide-grid h3{font-size:15px;margin-top:20px;color:#2f4d75}.guide-grid p{font-size:14px;line-height:1.8}.guide-grid a{color:#244ba8}@media(max-width:1300px){.search-guide{margin-left:35px;margin-right:35px}}@media(max-width:720px){h1{font-size:28px}h1 span{font-size:17px;line-height:1.55}.search-guide{margin:24px 20px 15px;padding:17px}.guide-grid{grid-template-columns:1fr;gap:10px}.search-guide summary{font-size:14px}}