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svg{overflow:visible}.dimension-label{letter-spacing:-1px;color:#46573b;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:20px;line-height:1.1}.dimension-label small{letter-spacing:0;font-size:13px}.surface-caption{color:#727b68;margin-top:12px;font-size:11px}.board-controls{border-top:1px solid var(--line);background:#fff;padding:23px 25px 22px}.board-step-heading{align-items:center;gap:8px;margin-bottom:16px;display:flex}.mini-step{color:var(--green);background:var(--tint);border-radius:4px;padding:3px 5px;font-family:ui-monospace,monospace;font-size:11px}.board-step-heading h3{margin:0;font-size:13px;font-weight:600}.step-total{color:#727b68;margin-left:auto;font-size:11px}.preset-grid{gap:8px;display:grid}.battery-presets{grid-template-columns:repeat(4,1fr)}.strap-presets{grid-template-columns:repeat(7,1fr);gap:6px}.preset{border:1px solid var(--line);text-align:center;color:#58604e;background:#fff;border-radius:6px;min-height:54px;padding:10px 5px}.preset strong{font-family:ui-monospace,SFMono-Regular,monospace;font-size:14px;font-weight:600;display:block}.preset small{font-size:11px;font-weight:400}.preset>span{color:#858b7f;margin-top:3px;font-size:11px;display:block}.preset.selected{color:#425e33;background:#f0f4e9;border-color:#718764;box-shadow:inset 0 0 0 .3px #718764}.preset:hover{background:var(--tint)}.stepper{margin:19px 0}.control-label{color:#7a8273;justify-content:space-between;align-items:center;margin-bottom:8px;font-size:11px;display:flex}.control-label output{color:#57634c;font-family:ui-monospace,monospace}.stepper-input{align-items:center;gap:16px;display:flex}.stepper-input button{color:#67795a;background:#fafbf8;border:1px solid #e0e5d9;border-radius:6px;place-items:center;width:34px;min-width:34px;height:34px;display:grid}.precision-slider{appearance:none;cursor:pointer;width:100%;height:28px;accent-color:var(--green);background:0 0}.precision-slider::-webkit-slider-runnable-track{background:#e2e7da;border-radius:4px;height:3px}.precision-slider::-webkit-slider-thumb{-webkit-appearance:none;background:var(--green);border:3px solid #fff;border-radius:50%;width:16px;height:16px;margin-top:-6.5px;box-shadow:0 0 0 1px #809271}.precision-slider::-moz-range-track{background:#e2e7da;height:3px}.precision-slider::-moz-range-thumb{background:var(--green);border:3px solid #fff;border-radius:50%;width:12px;height:12px;box-shadow:0 0 0 1px #809271}.primary-button{background:var(--green);color:#fff;text-align:center;border-radius:6px;justify-content:center;align-items:center;gap:10px;width:100%;min-height:47px;padding:12px 14px;font-size:13px;font-weight:600;display:flex}.primary-button:hover{background:var(--green-dark)}.confirm-measurement{justify-content:space-between}.how-to{padding:24px 0 0 5px}.how-to .eyebrow{color:#858d7d;margin-bottom:8px;font-size:11px}.how-to h2{letter-spacing:-.6px;margin:0;font-size:20px;font-weight:600}.how-to ol{flex-direction:column;gap:26px;margin:27px 0 22px;padding:0;list-style:none;display:flex}.how-to li{align-items:flex-start;gap:16px;display:flex}.step-number{color:#99a289;font-family:Georgia,serif;font-size:19px;font-style:italic;line-height:1.3}.how-to strong{font-size:13px;font-weight:600}.how-to li p{color:#727b68;margin:5px 0 0;font-size:13px;line-height:1.9}.aside-tip{border-top:1px solid var(--line);color:#7f8873;align-items:flex-start;gap:9px;padding-top:19px;display:flex}.aside-tip p{margin:0;font-size:11px;line-height:1.8}.directory-shortcut{color:#576b43;background:#eaf0df;border-radius:8px;align-items:center;gap:12px;margin-top:25px;padding:21px 17px;display:flex}.directory-shortcut div{flex:1}.directory-shortcut strong{font-size:13px;font-weight:600;display:block}.directory-shortcut span{color:#78876a;margin-top:4px;font-size:11px;display:block}.directory-shortcut:hover{background:#e1e9d4}.surface-care{color:#727b68;text-align:left;margin:13px 0 0;font-size:11px}.guide-section{padding-top:66px;scroll-margin-top:26px}.section-heading{justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:23px;display:flex}.section-heading .eyebrow{margin-bottom:7px;font-size:11px}.section-heading h2{letter-spacing:-.8px;margin:0;font-size:25px;font-weight:600}.section-heading>p{color:#727b68;margin:0 0 3px;font-size:13px}.directory-toolbar{justify-content:space-between;align-items:center;gap:20px;margin-bottom:20px;display:flex}.search-field{border:1px solid var(--line);color:#8a9480;background:#fff;border-radius:7px;flex:1;align-items:center;gap:10px;max-width:490px;height:45px;padding:0 14px;display:flex}.search-field:focus-within{border-color:#7d916c}.search-field input{width:100%;min-width:0;height:100%;color:var(--ink);word-break:normal;background:0 0;outline:none;font-size:13px}.search-field input::placeholder{color:#727b68}.search-field button{padding:7px}.guide-filters{flex-shrink:0;gap:5px;display:flex}.guide-filters button{color:#727b68;border-radius:5px;padding:8px 13px;font-size:11px}.guide-filters button.active{color:#4c603c;background:#e9eddf;font-weight:600}.guide-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:13px;display:grid}.guide-card{border:1px solid var(--line);background:#fff;border-radius:8px;align-items:flex-start;gap:13px;min-height:135px;padding:22px 18px;display:flex;position:relative}.guide-card:hover{background:#fcfdf9;border-color:#9baa8c}.guide-icon{color:#7d8b6f;background:#f0f2e9;border-radius:9px;flex-shrink:0;place-items:center;width:41px;height:44px;display:grid}.guide-icon.strap{color:#9a8768;background:#f3ede3}.guide-icon.ring{color:#a28b80;background:#f3eae7}.guide-kind{color:#727b68;margin-bottom:5px;font-size:11px;display:block}.guide-card h3{-webkit-line-clamp:2;-webkit-box-orient:vertical;margin:0 0 8px;padding-right:6px;font-size:13px;font-weight:600;line-height:1.7;display:-webkit-box;overflow:hidden}.guide-spec{color:#667953;font-family:ui-monospace,monospace;font-size:11px}.guide-arrow{color:#a7ad9c;position:absolute;top:14px;right:12px}.show-guides{color:#78826b;gap:8px;min-height:40px;margin:25px auto 0;padding:5px 18px;font-size:13px}.closing-note,.show-guides{align-items:center;display:flex}.closing-note{border-top:1px solid var(--line);border-bottom:1px solid var(--line);color:#849175;gap:20px;margin:48px 0 0;padding:29px 0}.closing-note h2{color:#57634c;margin:0;font-size:15px;font-weight:500}.closing-note p{color:#727b68;margin:5px 0 0;font-size:11px}.closing-note>span{color:#8a957c;margin-left:auto;font-size:11px}.site-footer{flex-wrap:wrap;justify-content:space-between;gap:18px;padding:31px 0 25px;display:flex}.footer-brand{letter-spacing:-.8px;color:#666e5d;font-size:17px;font-weight:600}.site-footer p{color:#727b68;margin:5px 0 0;font-size:11px;line-height:1.9}.site-footer nav{color:#7d8573;align-items:center;gap:19px;font-size:11px;display:flex}.site-footer .footer-note{color:#727b68;border-top:1px solid #e9ece3;width:100%;padding-top:17px;font-size:11px}.empty-state{text-align:center;color:#7f8973;flex-direction:column;align-items:center;padding:50px;display:flex}.empty-state h3{margin-top:14px;font-size:15px}.empty-state p{margin:7px 0 16px;font-size:13px}.text-link{color:var(--green);align-items:center;gap:7px;font-size:13px;display:inline-flex}.control-hint{color:#7a8370;margin:8px 0 15px;font-size:11px;line-height:1.9}.back-step{margin:8px 0 20px}.thickness-options{flex-direction:column;gap:9px;width:100%;max-width:385px;margin:18px 0 8px;display:flex}.thickness-option{text-align:left;background:#fff;border:1px solid #dfe5d7;border-radius:7px;align-items:center;gap:15px;min-height:56px;padding:10px 15px;display:flex;overflow:auto}.thickness-option.selected{background:#f2f6ec;border-color:#82976f}.thickness-bar{background:#8c9e77;flex-shrink:0;display:block}.thickness-option>span:nth-child(2){white-space:nowrap;margin-left:auto}.thickness-option strong{font:600 12px ui-monospace,monospace;display:block}.thickness-option small{color:#7c8771;font:10px ui-monospace,monospace}.option-check{border:1px solid #cdd5c3;border-radius:50%;flex-shrink:0;place-items:center;width:17px;height:17px;display:grid}.selected .option-check{background:var(--green);color:#fff;border-color:var(--green)}.ring-summary{color:#727b68;gap:20px;padding:12px 0;font-size:11px;display:flex}.ring-summary strong{color:#546746;margin-left:6px;font-family:ui-monospace,monospace;font-weight:400}.app-modal{background:var(--paper);width:min(480px,100% - 32px);max-width:100%;max-height:90dvh;color:var(--ink);overscroll-behavior:contain;border:1px solid #dce1d2;border-radius:16px;margin:auto;padding:0;position:fixed;inset:0;box-shadow:0 24px 90px #18270e26}.app-modal::backdrop{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#20291d70}.modal-content{padding:32px;position:relative}.modal-close{color:#7b846f;border-radius:50%;place-items:center;width:36px;height:36px;display:grid;position:absolute;top:15px;right:15px}.modal-close:hover{background:#e8eddf}.app-modal h2{letter-spacing:-1px;margin:15px 0 7px;font-size:29px;font-weight:600}.modal-description{color:#7d8673;margin:10px 0 22px;font-size:13px;line-height:1.9}.reference-tabs{gap:8px;margin:24px 0 14px;display:flex}.reference-tabs button{border:1px solid var(--line);background:#fff;border-radius:6px;flex:1;justify-content:center;align-items:center;gap:8px;padding:12px 5px;font-size:13px;display:flex}.reference-tabs button.selected{color:var(--green);background:#eaf0df;border-color:#849770}.reference-mat{border:1px solid var(--line);text-align:center;background:#fff;border-radius:8px;padding:20px 0 13px;overflow:hidden}.reference-scroll{width:100%;padding:8px 12px 16px;overflow:auto}.reference-shape{box-sizing:border-box;color:#a0ad92;background:#f1f4ea;border:2px solid #71855e;flex-shrink:0;place-items:center;margin-inline:auto;display:grid}.reference-shape.coin{border-radius:50%;font-family:Georgia,serif;font-size:25px}.reference-shape.card{border-radius:8px;font-size:11px}.reference-mat>span{color:#8b9580;margin:0 10px;font-size:11px;display:block}.confirm-checkbox{color:#606e52;cursor:pointer;align-items:center;gap:9px;margin:20px 0;font-size:13px;display:flex}.confirm-checkbox input{accent-color:var(--green);width:17px;height:17px}.modal-footnote{color:#727b68;text-align:center;margin:11px 0 0;font-size:11px;line-height:1.8}.result-modal h2{letter-spacing:-1.5px;font-size:39px}.result-dimensions{color:var(--green);font-family:ui-monospace,monospace;font-size:13px}.result-caution{color:#8c7852;background:#f0ede2;border-radius:8px;align-items:flex-start;gap:10px;padding:17px;display:flex}.result-caution strong{font-size:13px;font-weight:600}.result-caution p{color:#82775f;margin:5px 0 0;font-size:11px;line-height:1.9}.purchase-section{margin-top:26px}.purchase-heading{color:#647755;align-items:flex-start;gap:10px;margin-bottom:18px;display:flex}.purchase-heading h3{margin:0;font-size:13px;font-weight:600}.purchase-heading p{color:#88917d;margin:4px 0 0;font-size:11px}.affiliate-disclosure{color:#647058;margin:12px 0;font-size:11px;line-height:1.7}.result-actions{gap:10px;margin-top:23px;display:flex}.secondary-button{color:#69785a;background:#fff;border:1px solid #dce2d2;border-radius:6px;flex:1;justify-content:center;align-items:center;gap:6px;min-height:43px;padding:10px;font-size:11px;display:flex}.secondary-button:hover{background:var(--tint)}.copy-status{color:#727b68;text-align:center;margin:13px 0 0;font-size:11px;line-height:1.8}.loading-state{min-height:100dvh;color:var(--green);place-items:center;font-size:14px;display:grid}.skip-link{background:var(--green);color:#fff;z-index:100;border-radius:5px;padding:10px 20px;position:fixed;top:-60px;left:15px}.skip-link:focus{top:10px}@media (min-width:1400px){.intro{padding-top:62px;padding-bottom:44px}.workspace-layout{grid-template-columns:minmax(0,1fr) 294px;gap:44px}}@media (max-width:900px){.page-width{width:calc(100% - 40px)}.workspace-layout{grid-template-columns:minmax(0,1fr) 232px;gap:24px}.intro h1{font-size:31px}.intro-note{width:160px}.ruler-decoration{width:145px}.note-number{font-size:44px}.guide-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.category-tab{gap:6px}.category-tabs{gap:10px;padding:0 12px}.category-tab small{font-size:11px}.board-controls{padding:20px}.scale-notice{padding:12px 16px}.directory-toolbar{flex-wrap:wrap;gap:13px}.search-field{max-width:none}.guide-filters{gap:0}.guide-filters button{padding:8px 10px}.how-to{padding-top:20px}}@media (max-width:700px){.page-width{width:calc(100% - 36px)}.header-inner{gap:12px;height:72px}.wordmark{gap:8px;font-size:25px}.brand-symbol{width:30px;height:30px}.header-nav{display:none}.calibration-button{padding:10px;font-size:11px}.intro{align-items:flex-end;padding:33px 0 27px}.intro h1{letter-spacing:-1.2px;font-size:29px;line-height:1.4}.mobile-break{display:block}.intro-description{margin-top:12px;font-size:13px;line-height:1.85}.intro .eyebrow{margin-bottom:10px;font-size:11px}.intro-note{display:none}.workspace-layout{grid-template-columns:minmax(0,1fr);gap:18px}.workspace-aside{display:none}.category-tabs{gap:8px;padding:0 12px}.category-tab{gap:7px;padding:17px 0 14px}.category-tab strong{font-size:13px}.category-tab svg{width:18px}.category-tab small,.scale-notice{font-size:11px}.scale-notice{gap:5px;padding:11px 12px}.scale-notice button{gap:3px;font-size:11px}.scale-notice>svg{width:14px}.measurement-surface{padding:13px 14px 17px}.surface-instruction{margin-top:15px;font-size:11px}.surface-caption,.surface-topline{font-size:11px}.board-controls{padding:20px 16px 18px}.board-step-heading h3,.preset strong{font-size:13px}.preset>span{font-size:11px}.preset-grid{gap:6px}.stepper{margin:17px 0}.stepper-input button{width:38px;min-width:38px;height:38px}.primary-button{min-height:47px;font-size:13px}.surface-care{margin-top:11px;font-size:11px;line-height:1.7}.guide-section{padding-top:41px}.section-heading{margin-bottom:17px;display:block}.section-heading h2{font-size:23px}.section-heading>p{margin-top:9px;font-size:11px}.directory-toolbar{display:block}.search-field{width:100%;height:46px}.search-field input{font-size:11px}.guide-filters{gap:6px;margin-top:13px}.guide-filters button{min-height:36px;padding:8px 13px;font-size:11px}.guide-grid{grid-template-columns:1fr;gap:9px}.guide-card{gap:14px;min-height:104px;padding:17px}.guide-icon{width:41px;height:43px}.guide-kind{font-size:11px}.guide-card h3{margin-bottom:5px;font-size:13px}.guide-spec{font-size:11px}.guide-arrow{top:18px;right:14px}.show-guides{margin-top:17px;font-size:11px}.closing-note{gap:12px;margin-top:29px;padding:24px 0}.closing-note h2{font-size:13px}.closing-note p{font-size:11px}.closing-note>span{display:none}.site-footer{gap:16px;padding-top:24px}.site-footer nav{gap:17px;font-size:11px}.site-footer .footer-note{padding-top:14px;font-size:11px}.app-modal{border-radius:18px 18px 0 0;width:100%;max-height:94dvh;margin:auto 0 0}.modal-content{padding:28px 22px max(25px,env(safe-area-inset-bottom))}.app-modal h2{font-size:27px}.result-modal h2{font-size:36px}.reference-tabs button{font-size:11px}.thickness-option{gap:10px;padding:9px 11px}.ring-summary{gap:12px;font-size:11px}.strap-presets{gap:4px}.strap-presets .preset{padding:10px 2px}.category-tab{min-height:69px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:after,:before{transition:none!important;animation:none!important}}.guide-purchase{background:#edf2e4;border:1px solid #d8e1cb;border-radius:12px;padding:24px}.guide-purchase h2{letter-spacing:-.4px;font-size:17px;font-weight:600}.guide-purchase-note{color:#68765b;margin:12px 0 20px;font-size:12px}.guide-purchase .primary-button{max-width:420px}.guide-purchase .modal-footnote{text-align:left}.guide-purchase .purchase-heading p{font-size:12px}.guide-purchase .affiliate-disclosure{max-width:420px}.measurement-object{justify-content:flex-start}.circle-diagram,.thickness-options{margin-inline:auto}.calibration-modal{width:min(480px,100%);height:min(820px,100dvh);max-height:100dvh}.calibration-modal .modal-content{flex-direction:column;height:100%;padding:16px 20px;display:flex}.calibration-modal h2{margin:0 38px 8px 0;font-size:22px}.calibration-modal .reference-tabs{margin:0 0 8px}.calibration-modal .reference-tabs button{padding:9px 4px}.calibration-instruction{color:var(--ink);margin:0 0 10px;font-size:12px;line-height:1.6}.calibration-stage{border:1px solid var(--line);background:#fff;border-radius:8px;flex:1;min-height:0;position:relative;overflow:hidden}.card-height-reference,.coin-reference{box-sizing:border-box;color:#6b775f;text-align:center;place-items:center;display:grid;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.card-height-reference{border-top:2px solid var(--green);border-bottom:2px solid var(--green);background:#f1f4ea;width:calc(100% - 32px);font-size:12px;line-height:2}.card-height-reference svg{margin:8px auto 0}.coin-reference{border:2px solid var(--green);background:#f1f4ea;border-radius:50%;font-family:Georgia,serif;font-size:25px}.calibration-controls{flex:none}.calibration-status{min-height:17px;color:var(--green);margin:6px 0;font-size:11px;line-height:1.5}.calibration-modal .confirm-checkbox{margin:9px 0;font-size:12px}.calibration-modal .modal-footnote{margin-top:5px}.calibration-modal .control-label{margin-bottom:5px}.calibration-modal .primary-button{min-height:42px;padding:10px}@media (max-width:600px){.calibration-modal{border-radius:0;height:100dvh;max-height:100dvh}.calibration-modal .modal-content{padding:12px 16px max(10px,env(safe-area-inset-bottom))}}.affiliate-disclosure{color:#46533f;font-size:13px;line-height:1.8}.battery-safety,.guide-review-note,.guide-sources{border:1px solid var(--line);background:#fff;border-radius:10px;padding:18px;font-size:13px;line-height:1.85}.guide-review-note{background:#f3efe5}.battery-safety{background:#fff7e9}.guide-sources h2{margin-bottom:8px;font-weight:600}.guide-sources a{color:var(--green);text-decoration:underline}.guide-sources p{color:#66705d;margin-top:12px;font-size:12px}.calibration-modal .stepper{margin:4px 0}.calibration-modal .confirm-checkbox{margin:6px 0}.calibration-modal .calibration-status{margin:3px 0}@media (max-width:600px){.calibration-modal .modal-content{padding:10px 12px max(10px,env(safe-area-inset-bottom))}.calibration-modal .calibration-instruction{margin-bottom:6px;font-size:11px}.calibration-modal .modal-footnote{display:none}}@property --tw-space-y-reverse{syntax:"*";inherits:false;initial-value:0}@property --tw-divide-y-reverse{syntax:"*";inherits:false;initial-value:0}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-leading{syntax:"*";inherits:false}@property --tw-font-weight{syntax:"*";inherits:false}@property --tw-tracking{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}