:root{--paper:#f6f7f1;--ink:#252920;--lime:#d6ff3f;--line:#d9ddce;--muted:#6b7163}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button{cursor:pointer;color:inherit}a{color:inherit}header,main,footer{max-width:1240px;margin:auto}header{height:100px;display:flex;align-items:center;justify-content:space-between;padding:0 40px;border-bottom:1px solid var(--line)}.brand{font-weight:900;letter-spacing:-2px;font-size:34px;text-decoration:none}.brand>span{color:#77981c}.brand small{font-size:12px;letter-spacing:1px;font-weight:400;padding:5px 8px;border:1px solid #b9beaf;vertical-align:middle;margin-left:14px}.header-note{font-size:14px;color:var(--muted)}main{padding:0 40px}.intro{display:flex;justify-content:space-between;align-items:center;padding:42px 0 34px}.eyebrow{font:12px monospace;letter-spacing:1px;color:var(--muted);margin:0 0 14px}h1{font-size:clamp(34px,4.5vw,57px);letter-spacing:-2px;margin:0 0 16px;line-height:1.25}h1 span{background:linear-gradient(transparent 58%,var(--lime) 58%,var(--lime) 93%,transparent 93%)}.muted{color:var(--muted);font-size:16px;margin:0}.intro-mark{font-size:100px;font-weight:400;line-height:1;color:#a8bc60;transform:rotate(10deg)}nav{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:20px}.tab{border:1px solid var(--line);background:#ecefe5;padding:20px;text-align:left;border-radius:7px;font-size:18px;transition:background .15s}.tab b{font:12px monospace;margin-right:12px;opacity:.55}.tab span{display:block;font:11px monospace;letter-spacing:1px;margin:10px 0 0 30px;opacity:.65}.tab.active{background:var(--ink);color:var(--lime);border-color:var(--ink)}.tab:hover{border-color:#7c866e}.panel{background:#fff;border:1px solid var(--line);border-radius:10px;padding:30px}.panel-head{display:flex;justify-content:space-between;gap:20px;align-items:start;padding-bottom:25px;border-bottom:1px solid #e9ecdf}h2{font-size:24px;letter-spacing:-.7px;margin:0;font-weight:600}.badge{font-size:12px;white-space:nowrap;border:1px solid #ccd3bd;padding:7px 11px;border-radius:20px;color:var(--muted)}.timer-layout{display:grid;grid-template-columns:1.2fr 1fr;gap:40px;padding-top:30px}.clock-face{background:#f1f5e8;border-radius:7px;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:30px 20px;min-width:0}.clock-caption{font-size:14px;color:var(--muted)}#clock{font:clamp(34px,5.5vw,64px) monospace;letter-spacing:-3px;margin:22px 0;font-variant-numeric:tabular-nums}.progress-track{height:5px;width:80%;background:#d9e0cb;border-radius:5px;overflow:hidden}#progress{width:100%;height:100%;background:#92ae30}#timer-status{font-size:14px;color:var(--muted);text-align:center;min-height:21px}.field-title{margin:0 0 14px;font-size:14px}.time-inputs{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}label{display:block;font-size:14px;color:#59604f}input:not([type=checkbox]):not([type=range]),select{display:block;width:100%;min-width:0;border:1px solid #ccd2c1;border-radius:5px;padding:13px;background:white;color:var(--ink);margin-top:8px;font-size:18px}.time-inputs input{font:24px monospace!important}.presets{display:flex;gap:8px;margin:15px 0 22px}.presets button{border:1px solid #dfe4d4;background:#f7f9f2;border-radius:4px;padding:8px 12px;font-size:13px}.actions{display:flex;gap:10px}.primary,.secondary,.swap{border:0;border-radius:5px;padding:14px 20px;font-size:15px}.primary{background:var(--lime);color:#26300b;font-weight:600}.primary span{margin-left:20px}.secondary,.swap{background:#edf0e6}.sound{display:flex;align-items:center;gap:8px;margin-top:18px;font-size:13px}.sound input{accent-color:#607815;width:16px;height:16px}.note{font-size:13px;line-height:1.8;color:var(--muted);margin-bottom:0}.bottom-note{display:flex;justify-content:space-between;padding:22px 0 40px;font-size:12px;color:#838b78}footer{padding:24px 40px;display:flex;gap:25px;align-items:center;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}footer .brand{font-size:25px;color:var(--ink)}footer small{margin-left:auto;font:11px monospace}.exchange-fields{display:grid;grid-template-columns:1.2fr 1fr auto 1fr;gap:15px;align-items:end;margin:28px 0 22px}.swap{height:50px;font-size:25px;padding:7px 14px}.exchange-result{padding:28px;background:#f1f5e8;border-radius:7px;margin-top:25px}#converted{font-size:clamp(28px,4vw,46px);overflow-wrap:anywhere;font-weight:600}#rate-status{color:var(--muted);font-size:14px;line-height:1.8}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #677aad;outline-offset:3px}button:disabled,input:disabled{opacity:.5;cursor:default}[hidden]{display:none!important}@media(max-width:760px){header{height:80px;padding:0 22px}.header-note{display:none}main{padding:0 22px}.intro{padding:30px 0}.intro-mark{font-size:66px}nav{gap:8px}.tab{padding:15px 10px;font-size:15px}.tab b{margin-right:5px}.tab span{font-size:9px;letter-spacing:0;margin-left:0}.panel{padding:22px}.panel-head{gap:10px}h2{font-size:20px}.panel-head .eyebrow{font-size:10px}.badge{font-size:11px;padding:6px 8px}.timer-layout{grid-template-columns:1fr;gap:25px}#clock{font-size:58px}.clock-face{padding:25px 15px}.exchange-fields{grid-template-columns:1fr auto 1fr;gap:10px}.exchange-fields>label:first-child{grid-column:1/-1}.bottom-note{font-size:11px;gap:15px}footer{padding:22px;gap:15px}footer small{display:none}.eyebrow{font-size:10px}input:not([type=checkbox]):not([type=range]),select{font-size:16px;padding:12px 8px}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}
/* Brand system: a compact tool mark, wordmark and domain capsule. */
.brand-lockup{display:inline-flex;align-items:center;gap:12px;white-space:nowrap;text-decoration:none;color:var(--ink)}.brand-icon{display:block;width:42px;height:42px;flex-shrink:0}.wordmark{display:inline-flex;align-items:baseline;font-family:Arial,sans-serif;font-size:33px;font-weight:800;letter-spacing:-1.8px;line-height:1.1}.domain-suffix{font-size:22px;letter-spacing:-1px;background:var(--lime);padding:3px 7px 4px;border-radius:6px;margin-left:4px}.brand-descriptor{font-size:12px;letter-spacing:1.5px;color:var(--muted);border-left:1px solid var(--line);padding-left:15px;margin-left:4px}.brand-foot .brand-icon{width:28px;height:28px}.brand-foot .wordmark{font-size:25px}.brand-foot .domain-suffix{font-size:17px;padding:2px 5px}.intro-mark.brand-symbol{width:48px;height:48px;transform:rotate(-9deg);opacity:1}header .header-note{font-size:13px}footer .brand-lockup{gap:8px}@media(max-width:760px){.brand-icon{width:35px;height:35px}.wordmark{font-size:29px}.domain-suffix{font-size:20px}.brand-descriptor{display:none}.intro-mark.brand-symbol{width:36px;height:36px}.brand-lockup{gap:9px}}@media(max-width:380px){.intro-mark.brand-symbol{display:none}.brand-foot .wordmark{font-size:22px}footer{gap:12px}}
/* Expanded everyday toolkit. */
nav{grid-template-columns:repeat(3,minmax(0,1fr))}.tab{padding:16px 20px}.tab span{font-size:10px;margin-top:7px}.tool-body{padding-top:26px}.tool-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:18px;margin-bottom:22px}.tool-grid>*{min-width:0}.result-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px;margin-top:24px}.result-card,.result-box{padding:20px;background:#f1f5e8;border-radius:7px;overflow-wrap:anywhere}.result-card span{display:block;font-size:13px;color:var(--muted);margin-bottom:10px}.result-card strong{display:block;font-size:23px;font-weight:500;line-height:1.5}.result-box{font-size:21px;line-height:1.7}.result-box p{margin:4px 0}.tool-body textarea{display:block;width:100%;padding:14px;border:1px solid #ccd2c1;border-radius:5px;font-family:inherit;font-size:16px;line-height:1.7;color:var(--ink);background:white;margin:9px 0 16px;resize:vertical;min-height:120px}.tool-body input[type=range]{display:block;width:100%;margin:22px 0;accent-color:#708e18}.wrap{flex-wrap:wrap}.tool-body .actions{margin-top:20px}.tool-body hr{border:0;border-top:1px solid var(--line);margin:28px 0}.download{display:inline-block;padding:13px 19px;background:var(--lime);border-radius:5px;text-decoration:none;font-size:14px}#image-preview{display:block;max-width:100%;max-height:320px;margin:24px 0;object-fit:contain}#qr-canvas{display:block;max-width:100%;height:auto;margin:24px 0;image-rendering:pixelated}#zones .result-card strong{font-size:17px}.tool-body textarea:focus-visible{outline:3px solid #677aad;outline-offset:3px}
@media(max-width:760px){nav{grid-template-columns:repeat(3,minmax(0,1fr))}.tab{padding:13px 9px;font-size:14px}.tab b{font-size:10px}.tab span{font-size:9px;margin-left:0}.tool-grid{grid-template-columns:1fr}.result-grid{grid-template-columns:1fr 1fr}.result-card{padding:14px}.result-card strong{font-size:19px}.tool-body{padding-top:22px}#clock{font-size:clamp(34px,9vw,58px)}}
@media(max-width:400px){.tab{font-size:12px}.tab b{display:none}.result-grid{grid-template-columns:1fr}}
/* Directory homepage and focused, standalone tool pages. */
.tool-directory{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:8px 0 0}.tool-card{display:block;min-width:0;padding:24px;background:#fff;border:1px solid var(--line);border-radius:8px;text-decoration:none;transition:border-color .15s,background .15s}.tool-card:hover{border-color:#9aaa78;background:#faffed}.card-meta{display:flex;justify-content:space-between;font:10px monospace;letter-spacing:1px;color:var(--muted);margin-bottom:22px}.card-meta>span{font-size:16px}.tool-card h2{font-size:21px;margin-bottom:10px}.tool-card p{font-size:13px;line-height:1.8;color:var(--muted);margin:0}.tool-page header,.tool-page main,.tool-page footer{max-width:980px}.tool-page header{height:80px}.tool-page .brand-descriptor,.tool-page .header-note{display:none}.tool-page .brand-icon{width:32px;height:32px}.tool-page header .wordmark{font-size:26px}.tool-page header .domain-suffix{font-size:19px}.tool-page main{padding-bottom:48px}.back-link{display:inline-block;font-size:13px;color:var(--muted);margin:28px 0 22px;text-decoration:none}.back-link:hover{text-decoration:underline;color:var(--ink)}.tool-page .panel{padding:28px;border-radius:8px}.tool-page h1{font-size:28px;font-weight:600;letter-spacing:-.5px;margin:0}.tool-description{font-size:13px;line-height:1.8;margin-top:10px}.tool-page .panel-head{padding-bottom:22px}.tool-page .timer-layout{gap:28px}.tool-page footer{padding-top:20px;padding-bottom:20px}.tool-page footer .brand-lockup{display:none}.tool-page #clock{font-size:clamp(34px,4.8vw,54px)}
@media(max-width:760px){.tool-directory{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.tool-card{padding:19px}.card-meta{font-size:9px;margin-bottom:18px}.tool-card h2{font-size:18px}.tool-card p{font-size:12px}.tool-page header{height:70px}.tool-page .panel{padding:22px}.tool-page h1{font-size:25px}.tool-page #clock{font-size:clamp(32px,9vw,54px)}.tool-page .back-link{margin:24px 0 18px}.tool-page footer small{display:block}.tool-page .exchange-fields{grid-template-columns:minmax(0,1fr) auto minmax(0,1fr)}}
@media(max-width:420px){.tool-directory{grid-template-columns:1fr}.tool-card{padding:20px}.card-meta{margin-bottom:12px}.tool-card h2{margin-bottom:7px}.tool-page main{padding:0 16px 32px}.tool-page .panel{padding:18px}.tool-page .exchange-fields{grid-template-columns:1fr}.tool-page .swap{justify-self:start}.tool-page footer{font-size:11px}}
/* Equal-probability decision wheel. */
.wheel-layout{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:32px;align-items:center}.wheel-stage{min-width:0;text-align:center}.wheel-wrap{position:relative;width:100%;max-width:390px;margin:12px auto 0;aspect-ratio:1}.wheel-wrap canvas{display:block;width:100%;height:100%;border-radius:50%;box-shadow:0 0 0 1px var(--line),0 8px 24px #2529200c}.wheel-pointer{position:absolute;z-index:2;top:-7px;left:50%;transform:translateX(-50%);width:0;height:0;border-left:12px solid transparent;border-right:12px solid transparent;border-top:29px solid var(--ink);filter:drop-shadow(0 2px 1px #fff)}.wheel-hub{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:48px;height:48px;border-radius:50%;background:var(--ink);color:var(--lime);display:grid;place-items:center;font:23px monospace;border:4px solid white}.wheel-result{margin:24px 0 0;font-size:21px;line-height:1.6;min-height:68px;overflow-wrap:anywhere}.wheel-settings{min-width:0}.wheel-settings .primary{width:100%;margin-top:18px}.wheel-settings textarea:disabled{opacity:.6}.wheel-settings .note{font-size:12px}
@media(max-width:760px){.wheel-layout{grid-template-columns:1fr;gap:18px}.wheel-wrap{max-width:330px}.wheel-result{min-height:0;margin-top:20px;font-size:19px}.wheel-settings textarea{min-height:135px}.wheel-settings .primary{margin-top:12px}}
/* Language selection remains available on every page and at narrow widths. */
header{gap:18px}.language-picker{display:flex;align-items:center;gap:8px;flex-shrink:0;margin-left:auto}.language-picker span{font-size:12px}.language-picker select{width:auto;max-width:190px;font-size:13px;padding:8px;margin:0;background:var(--paper)}html[lang=en] h1{letter-spacing:-1px}.presets{flex-wrap:wrap}.time-inputs label{overflow-wrap:anywhere}
@media(max-width:1000px){header .header-note{display:none}}
@media(max-width:760px){.language-picker span{display:none}.language-picker select{max-width:155px;font-size:12px}.intro{gap:16px}footer{flex-wrap:wrap}}
@media(max-width:380px){header{padding-left:16px;padding-right:16px;gap:8px}header .brand-icon{width:26px;height:26px}header .wordmark{font-size:23px}header .domain-suffix{font-size:16px}.language-picker select{max-width:135px}}

.language-links{display:flex;flex-wrap:wrap;gap:8px;font-size:12px}.language-links a{text-underline-offset:3px}footer{flex-wrap:wrap}