:root{color-scheme:light;--bg:#f5f7f6;--surface:#fff;--soft:#edf2ef;--text:#172c29;--muted:#62736e;--line:#dce5e0;--accent:#087c69;--accent-strong:#066554;--tint:#e5f4ed;--result:#e6f5ef;--error:#a72c38;--focus:#147fdd;--shadow:0 8px 30px #17352a06}
:root[data-theme=dark]{color-scheme:dark;--bg:#131d1c;--surface:#1c2927;--soft:#243431;--text:#f1f6f3;--muted:#a4b9b1;--line:#364a44;--accent:#6ee0bd;--accent-strong:#90edcd;--tint:#243d34;--result:#203e34;--error:#ffb4b4;--focus:#8ac5ff;--shadow:0 8px 30px #00000012}
*{box-sizing:border-box}html{font-family:Inter,"Segoe UI","Malgun Gothic",sans-serif;scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-size:16px;line-height:1.6}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}a{color:inherit;text-decoration:none}button{cursor:pointer;border:0}button:disabled{cursor:default;opacity:.5}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--focus);outline-offset:3px}h1,h2,h3,p{margin-top:0}h1{line-height:1.25;font-weight:750;letter-spacing:-.045em}h2{font-size:1.05rem;letter-spacing:-.025em}fieldset{border:0;margin:0;padding:0;min-width:0}svg{flex-shrink:0;vertical-align:middle}input,select,textarea{min-width:0;max-width:100%;color:var(--text);background:var(--surface);border:1px solid var(--line);border-radius:12px}select{min-height:48px;padding:8px 12px;width:100%;margin-top:8px}label{font-size:.9rem;font-weight:600}input[type=checkbox]{accent-color:var(--accent);width:19px;height:19px;flex-shrink:0}textarea{width:100%;padding:14px;resize:vertical}p{color:var(--muted)}.app-shell{max-width:1120px;margin:auto;padding:0 40px 130px}.skip-link{position:fixed;top:-100px;left:15px;z-index:30;background:var(--surface);padding:15px}.skip-link:focus{top:10px}.topbar{height:102px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:20px}.brand{display:flex;gap:10px;align-items:center;font-weight:800;font-size:1.65rem;letter-spacing:-.06em}.brand-mark{display:inline-flex;align-items:center;justify-content:center;color:#fff;background:#087c69;width:37px;height:37px;border-radius:12px;font-size:26px;letter-spacing:-4px;padding-right:4px}.brand-mark span{color:#9ee5c5}.brand-caption{font-size:.72rem;font-weight:500;letter-spacing:0;margin-left:10px;color:var(--muted)}.language-switch{display:flex;border:1px solid var(--line);padding:4px;border-radius:30px;gap:4px;background:var(--surface)}.language-switch button{min-height:34px;border-radius:24px;padding:4px 11px;background:transparent;color:var(--muted);font-size:.78rem}.language-switch .selected{background:var(--soft);color:var(--text);font-weight:700}.hero{padding:55px 0 30px}.eyebrow{font-size:.72rem;letter-spacing:.1em;color:var(--accent);font-weight:750;display:flex;align-items:center;gap:8px;margin-bottom:16px}.eyebrow>span{width:6px;height:6px;border-radius:50%;background:var(--accent)}.hero h1{font-size:clamp(2.1rem,4vw,3.2rem);margin-bottom:18px}.hero h1 em{color:var(--accent);font-style:normal}.hero p{font-size:.96rem;margin-bottom:0}.search-box{display:flex;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:0 20px;height:66px;box-shadow:var(--shadow);gap:13px}.search-box svg{color:var(--accent)}.search-box input{flex:1;width:100%;border:0;background:transparent;height:100%;font-size:1rem;font-weight:400;outline-offset:-3px}.search-hint{color:var(--muted);white-space:nowrap;font-size:.75rem;font-weight:400;border-left:1px solid var(--line);padding-left:17px}.category-tabs{display:flex;gap:8px;margin:30px 0 28px;flex-wrap:wrap}.category-tabs button,.chips a{background:var(--surface);border:1px solid var(--line);border-radius:30px;color:var(--muted);padding:10px 20px;font-size:.84rem;min-height:44px}.category-tabs button.active{background:var(--text);border-color:var(--text);color:var(--bg)}.section-heading{display:flex;justify-content:space-between;align-items:center;margin:0 0 17px;gap:10px}.section-heading h2{margin:0}.section-heading h2 span{font-size:.8rem;margin-left:6px;color:var(--accent)}.section-heading>span{font-size:.75rem;color:var(--muted)}.tool-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.tool-card{position:relative;display:flex;gap:16px;align-items:center;padding:25px 23px;border:1px solid var(--line);border-radius:18px;background:var(--surface);box-shadow:var(--shadow);transition:border-color .15s,transform .15s}.tool-card:hover{border-color:var(--accent);transform:translateY(-2px)}.tool-icon{height:48px;width:48px;border-radius:15px;background:var(--tint);color:var(--accent);display:grid;place-items:center;flex-shrink:0}.tool-card-content{display:flex;flex-direction:column;gap:5px}.tool-card strong{font-size:1rem;letter-spacing:-.025em}.tool-card-content>span{font-size:.75rem;color:var(--muted)}.card-arrow{margin-left:auto;color:var(--muted);font-size:1.1rem}.status-dot{position:absolute;right:14px;top:12px;width:5px;height:5px;background:var(--line);border-radius:50%}.home-note{display:flex;gap:15px;border-top:1px solid var(--line);margin-top:32px;padding:24px 0 0;font-size:.8rem}.home-note>svg{color:var(--accent)}.home-note p{margin:5px 0 0}.recent-section{margin-top:25px}.recent-section h2{font-size:.82rem}.chips{display:flex;gap:8px;flex-wrap:wrap}.chips a{display:flex;align-items:center;gap:8px;padding:8px 14px}.chips svg{width:17px;height:17px}.bottom-nav{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);width:360px;max-width:calc(100% - 32px);display:flex;z-index:10;padding:8px;background:var(--surface);border:1px solid var(--line);border-radius:24px;box-shadow:0 8px 35px #00000015}.bottom-nav a{display:flex;flex:1;flex-direction:column;align-items:center;gap:3px;padding:8px;border-radius:17px;color:var(--muted);font-size:.7rem}.bottom-nav a.active{background:var(--tint);color:var(--accent);font-weight:700}.site-footer{display:flex;align-items:center;justify-content:space-between;margin-top:42px;font-size:.68rem;color:var(--muted);gap:16px;flex-wrap:wrap}.site-footer div{display:flex;gap:18px}.back-link{display:inline-flex;gap:8px;align-items:center;font-size:.8rem;color:var(--muted);margin:30px 0 24px;min-height:30px}.back-link svg{width:18px}.tool-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.tool-heading .eyebrow{font-size:.65rem;margin-bottom:8px}.tool-heading h1{font-size:2rem;margin-bottom:0}.tool-description{font-size:.94rem;margin:14px 0 26px}.icon-button{display:grid;place-items:center;color:var(--muted);border:1px solid var(--line);border-radius:13px;background:var(--surface);min-width:46px;min-height:46px;padding:8px}.favorite.saved{color:var(--accent);background:var(--tint)}.favorite.saved svg{fill:var(--accent)}.calculator-layout{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:24px;align-items:start}.panel{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:26px;box-shadow:var(--shadow)}.segmented{display:flex;gap:5px;background:var(--soft);padding:5px;border-radius:12px;margin-bottom:25px}.segmented button{flex:1;min-height:43px;border-radius:9px;background:transparent;color:var(--muted);font-size:.85rem}.segmented button.active{background:var(--surface);color:var(--accent);font-weight:700;box-shadow:0 2px 6px #00000009}.unit-row{display:flex;align-items:end;gap:12px;margin-bottom:24px}.unit-row label{flex:1;min-width:0}.swap{margin-bottom:1px}.number-field{display:flex;align-items:center;border:1px solid var(--line);background:var(--surface);border-radius:13px;margin:8px 0 14px;min-height:65px;gap:10px;padding:0 8px 0 16px}.number-field:focus-within{border-color:var(--accent)}.number-field input{border:0;font-size:1.6rem;width:100%;padding:10px 0;background:transparent;outline-offset:0}.number-field>span{color:var(--muted);white-space:nowrap;font-size:.9rem}.clear-field{border-radius:50%;min-width:36px;min-height:36px;background:transparent;color:var(--muted);font-size:1.2rem}.quick-picks{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0 15px}.quick-picks button{background:var(--soft);border-radius:8px;padding:9px 11px;font-size:.75rem;color:var(--muted);min-height:40px}.field-help{font-size:.73rem;line-height:1.65;margin:10px 0 14px}.error-text{font-size:.8rem;color:var(--error);margin:0 0 12px}.error-text:empty{display:none}.checkbox-label{display:flex;align-items:center;gap:8px;font-size:.81rem;min-height:32px;margin-top:18px}.result-box{padding:24px 20px;background:var(--result);border-radius:15px;margin-top:24px;text-align:center;overflow-wrap:anywhere}.result-label{display:block;font-size:.72rem;letter-spacing:.04em;font-weight:650;color:var(--accent);text-align:left}.result-number,.result-placeholder{font-size:clamp(2rem,4vw,3rem);font-weight:750;letter-spacing:-.04em;line-height:1.2;color:var(--text);padding:22px 0 12px;font-variant-numeric:tabular-nums}.result-number small,.result-placeholder small{font-size:1.2rem;font-weight:500;letter-spacing:-.025em}.result-box p{font-size:.8rem;margin-bottom:18px}.result-box .copy-message{margin:12px 0 0}.primary,.secondary{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;min-height:46px;padding:10px 16px;font-size:.84rem;font-weight:650}.primary{background:var(--accent);color:var(--bg)}:root:not([data-theme=dark]) .primary{color:#fff}.primary:hover{background:var(--accent-strong)}.secondary{color:var(--text);background:transparent;border:1px solid var(--line)}.copy-actions{display:flex;flex-direction:column;gap:9px}.copy-actions .secondary{font-size:.78rem;min-height:40px}.text-button{min-height:44px;padding:8px 10px;background:transparent;color:var(--muted);font-size:.8rem}.accent{color:var(--accent)}.reset-row{display:flex;justify-content:space-between;margin-top:13px}.restore-note{font-size:.77rem;color:var(--accent);background:var(--tint);padding:9px 12px;border-radius:8px}.explanation-stack{display:flex;flex-direction:column;gap:18px}.info-panel{padding:24px}.info-panel h2{margin:12px 0}.info-panel p{font-size:.82rem;line-height:1.85;margin-bottom:10px}.info-icon{color:var(--accent)}.example-panel .eyebrow{margin-bottom:10px}.example-equation{font-size:1.5rem;font-weight:650;padding:14px 0;color:var(--text);letter-spacing:-.04em}.example-equation span{margin:0 14px;font-weight:400;color:var(--accent)}.example-equation small{font-size:1rem;margin-left:4px}.small-note{display:flex;align-items:start;gap:9px;padding:0 8px}.small-note svg{color:var(--accent);width:18px}.small-note p{font-size:.73rem}.tool-bottom-links{display:flex;justify-content:space-between;font-size:.76rem;color:var(--muted);margin-top:24px;gap:16px;flex-wrap:wrap}.settings-page{max-width:720px;margin:45px auto}.settings-page h1{font-size:2rem}.settings-section{margin-bottom:20px}.settings-section>label{display:block;margin-top:22px}.settings-section>p{font-size:.83rem}.settings-section select{max-width:100%}.stack-buttons{display:flex;flex-wrap:wrap;gap:10px}.confirm-box{background:var(--soft);padding:18px;border-radius:12px;margin-top:18px}.confirm-box p{font-size:.8rem}.feedback-link{display:block;color:var(--accent);font-size:.9rem}.notice{padding:13px 16px;border:1px solid var(--line);background:var(--soft);border-radius:12px;font-size:.8rem;margin:15px 0}.empty-state{text-align:center;padding:40px 20px}.empty-state>svg{width:32px;height:32px;color:var(--accent);margin-bottom:16px}.empty-state h2{margin-bottom:12px}.empty-state p{font-size:.85rem}.prose{margin-top:35px;max-width:740px}.prose .back-link{margin:0 0 22px}.prose p{line-height:1.9;font-size:.9rem}#blazor-error-ui{display:none;position:fixed;bottom:0;left:0;right:0;z-index:50;background:#fff1cc;color:#372a05;padding:15px}.reload{margin-left:15px;text-decoration:underline}
@media(max-width:700px){.app-shell{padding:0 20px 110px}.topbar{height:79px}.brand{font-size:1.5rem}.brand-caption{display:none}.brand-mark{width:32px;height:32px;font-size:23px;border-radius:10px}.hero{padding:34px 0 25px}.hero h1{font-size:2.05rem}.hero p{font-size:.83rem}.eyebrow{font-size:.64rem}.search-box{height:58px;padding:0 15px}.search-box input{font-size:.88rem}.search-hint{display:none}.category-tabs{gap:6px;margin:24px 0}.category-tabs button{font-size:.72rem;padding:9px 12px;flex:1;white-space:nowrap}.section-heading>span{font-size:.66rem}.tool-grid{gap:10px}.tool-card{padding:16px 12px;gap:10px;min-height:97px;align-items:flex-start;flex-direction:column;border-radius:14px}.tool-icon{width:34px;height:34px;border-radius:10px}.tool-icon svg{width:21px;height:21px}.tool-card strong{font-size:.82rem}.tool-card-content>span{font-size:.65rem;line-height:1.5}.tool-card-content{gap:4px}.card-arrow{position:absolute;right:12px;top:20px;font-size:.85rem}.home-note{font-size:.72rem;margin-top:25px}.home-note>svg{width:19px}.bottom-nav{bottom:0;left:0;transform:none;width:100%;max-width:none;border-radius:18px 18px 0 0;padding:7px 16px calc(7px + env(safe-area-inset-bottom));border-bottom:0}.bottom-nav a{font-size:.67rem;padding:7px;gap:2px}.bottom-nav svg{width:22px;height:22px}.site-footer{margin-top:28px;font-size:.65rem}.calculator-layout{grid-template-columns:minmax(0,1fr);gap:20px}.tool-heading h1{font-size:1.65rem}.tool-description{font-size:.85rem}.panel{padding:20px;border-radius:16px}.back-link{margin-top:23px;margin-bottom:18px}.result-number{font-size:2.65rem}.explanation-stack{gap:14px}.example-equation{font-size:1.5rem}.settings-page{margin-top:30px}.settings-page h1{font-size:1.7rem}.unit-row{gap:8px}.info-panel p{font-size:.8rem}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
.block-label{display:block;margin-top:20px}.date-input{display:block;width:100%;min-height:52px;padding:10px 14px;margin:8px 0 18px}.count-list{margin:18px 0}.count-list>div{display:flex;justify-content:space-between;gap:15px;border-bottom:1px solid var(--line);padding:12px 0}.count-list dt{font-size:.82rem;color:var(--muted)}.count-list dd{margin:0;font-size:1.3rem;font-weight:700}.name-result{font-size:1.5rem;line-height:1.6}.result-details{white-space:pre-wrap}.timer-panel{max-width:740px;margin:auto}.timer-display{text-align:center;font-size:clamp(2.2rem,7vw,4.5rem);font-variant-numeric:tabular-nums;font-weight:700;letter-spacing:-.04em;padding:30px 0 12px;color:var(--accent)}.timer-status{text-align:center}.timer-controls{justify-content:center;margin-bottom:30px}.timer-controls>.primary{min-width:130px}
.location-list{display:flex;flex-direction:column;gap:8px;margin-top:20px}.info-panel a{text-decoration:underline;color:var(--accent)}
.quick-access{margin:24px 0 16px}.quick-access p{font-size:.8rem}.quick-access .section-heading{margin-bottom:10px}
.status-badge{position:absolute;right:12px;top:8px;font-size:.6rem;color:var(--muted)}@media(max-width:700px){.tool-card{flex-direction:row;align-items:center;min-height:87px;gap:9px}.tool-card-content>span{display:none}.tool-card .card-arrow{display:none}.tool-card strong{line-height:1.5}.hero{padding-top:28px}.category-tabs{row-gap:8px}.tool-icon{width:30px;height:30px;flex-shrink:0}}

/* Category cues use surfaces and icons; titles retain a high-contrast text color. */
.category-calculate{--category-bg:#edf7ed;--category-border:#91bfa0;--category-ink:#23643a;--category-icon:#d3edd8}
.category-time{--category-bg:#edf5fc;--category-border:#93b9dd;--category-ink:#205d8d;--category-icon:#d5e9fb}
.category-life{--category-bg:#fff7e5;--category-border:#d3b56e;--category-ink:#795600;--category-icon:#f9e9b5}
.category-games{--category-bg:#f3edfc;--category-border:#b59bd6;--category-ink:#63418a;--category-icon:#e5d7f6}
.category-finance{--category-bg:#eaf7f6;--category-border:#82bcb8;--category-ink:#216b66;--category-icon:#cbeae7}
.category-hobbies{--category-bg:#fff0ed;--category-border:#d8a193;--category-ink:#914d3c;--category-icon:#f6dcd4}
:root[data-theme=dark] .category-calculate{--category-bg:#203b2b;--category-border:#527f61;--category-ink:#a0e6b4;--category-icon:#305640}
:root[data-theme=dark] .category-time{--category-bg:#203448;--category-border:#527c9f;--category-ink:#a5d9ff;--category-icon:#2c4c69}
:root[data-theme=dark] .category-life{--category-bg:#3b3420;--category-border:#8c7845;--category-ink:#f4d780;--category-icon:#55482a}
:root[data-theme=dark] .category-games{--category-bg:#352a46;--category-border:#8870a8;--category-ink:#dac0ff;--category-icon:#4c3a65}
:root[data-theme=dark] .category-finance{--category-bg:#203c3c;--category-border:#528987;--category-ink:#a0e2dd;--category-icon:#305553}
:root[data-theme=dark] .category-hobbies{--category-bg:#452e29;--category-border:#a8796a;--category-ink:#ffcab8;--category-icon:#624137}
.brand-row{display:flex;align-items:center;gap:26px;min-width:0}.home-topbar{height:auto;min-height:102px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px 20px;padding:25px 0 17px}.header-companion{font-size:.8rem;font-weight:650;letter-spacing:.06em;color:var(--accent)}.hero{padding:32px 0 23px}.hero h1{margin-bottom:0}
.category-tabs button:not(.category-all){background:var(--category-bg);border-color:var(--category-border);color:var(--text);font-weight:650}.category-tabs button:not(.category-all).active{background:var(--category-icon);box-shadow:inset 0 0 0 2px var(--category-ink);color:var(--text)}.category-tabs button:not(.category-all):hover{background:var(--category-icon)}
.tool-card{background:var(--category-bg);border-color:var(--category-border);border-left:4px solid var(--category-border)}.tool-card:hover{border-color:var(--category-ink)}.tool-card .tool-icon{background:var(--category-icon);color:var(--category-ink)}.tool-card strong{color:var(--text)}.tool-card .card-arrow{color:var(--category-ink)}
.recent-toggle{display:inline-flex;align-items:center;gap:8px;flex-shrink:0;white-space:nowrap;min-height:44px;padding:8px 12px;margin-right:-8px;border:1px solid var(--line);border-radius:10px;background:var(--soft);color:var(--text);font-size:.8rem;font-weight:650}.recent-toggle:hover,.recent-toggle[aria-expanded=true]{background:var(--tint);border-color:var(--accent)}.recent-toggle span{color:var(--accent)}.recent-panel{padding:16px 20px;background:var(--surface);border:1px solid var(--line);border-radius:16px;margin-top:12px}.recent-panel .section-heading{margin-bottom:0}.recent-panel .section-heading h2{font-size:.9rem}.recent-panel p{font-size:.8rem;margin:4px 0 12px}.recent-panel .chips a{background:var(--category-bg);border-color:var(--category-border);color:var(--text)}.recent-panel .chips svg{color:var(--category-ink)}
@media(max-width:700px){.home-topbar{min-height:79px;padding:18px 0 15px;gap:12px 8px}.brand-row{flex-direction:row;align-items:center;gap:12px}.header-companion{font-size:.66rem;letter-spacing:0;margin-left:0;white-space:nowrap}.home-topbar .language-switch{align-self:center}.hero{padding:25px 0 22px}.search-box{gap:8px;padding:0 10px}.search-box>svg{width:20px}.search-box input{font-size:.78rem}.recent-toggle{font-size:.7rem;gap:5px;padding:6px 8px;margin-right:0}.recent-panel{padding:12px}.category-tabs button{font-size:.7rem;padding:9px 8px}.tool-card{padding-left:10px}}

.app-shell{--brand-label-size:20px}
.brand-mark{font-size:var(--brand-label-size);letter-spacing:-1px;padding-right:1px;font-weight:800;line-height:1}
.recent-panel{padding:8px 10px;margin-top:8px;border-radius:12px}.recent-panel .section-heading{gap:6px;flex-wrap:wrap}.recent-panel .section-heading h2{font-size:.8rem}.recent-actions{display:flex;gap:6px;margin-left:auto}.recent-panel .text-button{min-height:28px;padding:3px 6px;font-size:.72rem}.recent-panel .field-help{font-size:.7rem;margin:0 0 6px}.recent-panel .chips{gap:8px}.recent-panel .chips a{min-height:24px;padding:2px 8px;font-size:.75rem;line-height:18px;gap:5px}.recent-panel .chips svg{width:13px;height:13px}.recent-cleared{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:.75rem;color:var(--accent);margin:4px 0}.recent-panel .recent-cleared .text-button{color:var(--accent);text-decoration:underline}
@media(max-width:700px){.app-shell{--brand-label-size:17px}.recent-panel{padding:8px 10px}}

.all-tools-panel{margin-top:8px;padding:14px;background:var(--surface);border:1px solid var(--line);border-radius:12px}.all-tools-panel h2{font-size:.85rem;margin:0 0 12px}.all-tools-panel h2 span{color:var(--accent);margin-left:6px;font-size:.75rem}.all-tools-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.all-tools-links a{display:flex;align-items:center;gap:8px;border:1px solid var(--category-border);border-radius:10px;background:var(--category-bg);color:var(--text);padding:8px 10px;min-height:40px;font-size:.8rem}.all-tools-links svg{width:17px;height:17px;color:var(--category-ink)}
.recent-chip{display:inline-flex;align-items:center;background:var(--category-bg);border:1px solid var(--category-border);border-radius:20px;max-width:100%}.recent-panel .chips .recent-chip a{border:0;border-radius:20px 0 0 20px;padding:1px 4px 1px 8px;min-height:22px;background:transparent;overflow-wrap:anywhere}.remove-recent{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;width:24px;min-height:24px;padding:0;margin:-1px -1px -1px 0;border-radius:50%;background:transparent;color:var(--category-ink);font-size:17px;line-height:1}.remove-recent:hover{background:var(--category-icon)}.recent-cleared .text-button{color:var(--accent);text-decoration:underline;min-height:28px;padding:3px 6px;font-size:.75rem}
@media(max-width:400px){.all-tools-panel{padding:10px}.all-tools-links a{font-size:.72rem;padding:7px;gap:5px}}

.hero h1{word-break:keep-all}.hero h1 em{display:inline-block}
.home-hero h1{font-size:var(--brand-label-size)}

.heading-with-help{display:flex;align-items:center;gap:7px}.help-button{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border:1px solid var(--line);border-radius:50%;background:var(--soft);color:var(--muted);font-size:.75rem;font-weight:700}.help-button:hover{color:var(--accent);border-color:var(--accent)}.help-popover{width:320px;max-width:calc(100vw - 32px);padding:20px;border:1px solid var(--line);border-radius:16px;background:var(--surface);color:var(--text);box-shadow:0 12px 45px #0003}.help-popover h2{font-size:.95rem;margin:0 0 10px}.help-popover p{font-size:.85rem;line-height:1.8;margin:0 0 14px}.help-popover::backdrop{background:#0003}.recent-panel .chips{margin-top:5px}

/* Keep category labels slightly larger than tool card titles at each breakpoint. */
.category-tabs button{font-size:1.1rem;font-weight:650}
@media(max-width:700px){.category-tabs button{font-size:.92rem;padding:9px 8px}}
@media(max-width:360px){.category-tabs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}}

@media(max-width:480px){.home-topbar .brand-row{grid-column:1/-1;gap:10px}.home-topbar .language-switch{grid-column:2;grid-row:2;align-self:center}.home-topbar .header-companion{font-size:.64rem}}
@media(max-width:360px){.home-topbar .brand{font-size:1.35rem;gap:8px}.home-topbar .header-companion{font-size:.6rem}.home-topbar .brand-row{gap:8px}}

/* Match the language control height to the AL mark. */
.language-switch{height:37px;flex-shrink:0;align-items:stretch;padding:3px;gap:2px}
.language-switch button{min-height:24px;padding:0 8px;font-size:.72rem;line-height:1.2;white-space:nowrap}
.language-switch .language-more{width:24px;padding:0;display:flex;align-items:center;justify-content:center}
.language-more svg{width:1em;height:1em}
@media(max-width:700px){.language-switch{height:32px;padding:2px}.language-switch button{font-size:.7rem;padding:0 7px}.language-switch .language-more{padding:0}}

/* Align the wordmark's visible letter height with the AL tile. */
.brand-name{display:flex;align-items:center;height:37px;font-size:48px;line-height:1;white-space:nowrap;letter-spacing:-.06em}
.brand-mark{flex-shrink:0}
@media(max-width:700px){.brand-name{height:32px;font-size:42px}}
@media(max-width:360px){.topbar{gap:8px}.brand{gap:8px}}

/* Reserve room for the longest catalog label; all cards share the same scale. */
.tool-card{container-type:inline-size;--card-label-size:clamp(1.25rem,calc((100cqi - 24px)/9),1.75rem);padding:22px 16px;gap:12px;min-height:104px;align-items:center;flex-direction:row}
.tool-card:lang(en){--card-label-size:clamp(1rem,calc((100cqi - 24px)/10.5),1.75rem)}
.tool-card-content{min-width:0;flex:1}
.tool-card strong{font-size:var(--card-label-size);line-height:1.25;font-weight:700;word-break:keep-all;overflow-wrap:anywhere}
.tool-card .tool-icon{width:calc(var(--card-label-size) + 12px);height:calc(var(--card-label-size) + 12px);border-radius:11px}
.tool-card .tool-icon svg{width:var(--card-label-size);height:var(--card-label-size)}
.tool-card .card-arrow{display:none}
@media(max-width:520px){.tool-grid{grid-template-columns:minmax(0,1fr)}.tool-card{min-height:88px;padding:18px 16px}}

/* Three header columns center the companion in the space between brand and languages. */
.topbar{--wordmark-font-size:calc(37px / .7)}
.brand-name{font-size:var(--wordmark-font-size)}
.brand-name>span{text-box-trim:trim-both;text-box-edge:cap alphabetic}
.home-topbar{grid-template-columns:max-content minmax(0,1fr) auto;column-gap:16px;align-items:center}
.home-topbar .brand-row{grid-column:1;grid-row:1;align-self:center}
.home-topbar .language-switch{grid-column:3;grid-row:1;align-self:center}
.home-topbar .header-companion{grid-column:2;grid-row:1;min-width:0;margin:0;container-type:inline-size;display:flex;align-items:center;justify-content:center;font-size:calc(var(--wordmark-font-size)*.7);line-height:1.2;letter-spacing:-.04em;white-space:nowrap;text-align:center;align-self:center}
.header-companion>span{display:inline-block;font-size:min(1em,calc(100cqi / 9));vertical-align:middle}
.header-companion>span:lang(en){font-size:min(1em,calc(100cqi / 14))}
@media(max-width:700px){.topbar{--wordmark-font-size:calc(32px / .7)}.home-topbar{column-gap:12px}}
@media(max-width:520px){.home-topbar{grid-template-columns:minmax(0,1fr) auto;row-gap:16px}.home-topbar .language-switch{grid-column:2;grid-row:1}.home-topbar .header-companion{grid-column:1/-1;grid-row:2}}
@media(max-width:360px){.brand,.home-topbar .brand{gap:6px}.home-topbar{column-gap:8px}.language-switch{gap:1px}.language-switch button{font-size:.65rem;padding:0 4px}.language-switch .language-more{width:18px;padding:0}}

/* Shared standard/scientific/programmer calculator. */
.advanced-calculator .calculator-panel{min-width:0}.calculator-modes{display:flex;flex-wrap:wrap;gap:4px}.calculator-modes button{flex:1;min-width:0;padding:10px 5px;font-size:.8rem}.expression-input{width:100%;min-height:58px;padding:12px;font-size:1.2rem;font-variant-numeric:tabular-nums;margin-top:8px}.programmer-options{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:14px}.advanced-calculator select{margin-bottom:14px}.memory-keys,.function-keys{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px;margin:12px 0}.memory-keys .secondary,.function-keys .secondary{padding:8px 3px;font-size:.8rem;min-height:42px}.calculator-keypad{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin:14px 0}.calculator-keypad button{min-height:52px;border:1px solid var(--line);border-radius:12px;background:var(--soft);color:var(--text);font-size:1.2rem;font-weight:650}.calculator-keypad button:hover{border-color:var(--accent)}.calculator-keypad .calc-operator{color:var(--accent);background:var(--tint)}.calculator-keypad .calc-equals{background:var(--accent);color:var(--bg)}:root:not([data-theme=dark]) .calculator-keypad .calc-equals{color:#fff}.calculator-keypad .calc-clear{color:var(--accent)}.calculator-answer{font-size:clamp(1.5rem,4vw,2.3rem);font-weight:750;overflow-wrap:anywhere;padding:16px 0;font-variant-numeric:tabular-nums;line-height:1.3}.base-results{display:grid;grid-template-columns:auto minmax(0,1fr);gap:6px 12px;font-size:.85rem;margin:0 0 20px}.base-results dt{color:var(--accent)}.base-results dd{margin:0;overflow-wrap:anywhere;font-family:Consolas,monospace}.calculator-history h2{margin:0}.calculator-history p{font-size:.8rem}.history-entry{display:flex;flex-direction:column;gap:4px;text-align:left;width:100%;padding:12px;margin-top:8px;border:1px solid var(--line);border-radius:10px;background:var(--soft);color:var(--text);overflow-wrap:anywhere}.history-entry span{font-size:.85rem}.history-entry small{color:var(--muted);font-size:.7rem}@media(max-width:380px){.calculator-modes button{font-size:.7rem}.calculator-keypad{gap:6px}.calculator-keypad button{font-size:1rem}}

.weather-location-heading{display:flex;align-items:flex-start;gap:6px 18px;flex-wrap:wrap;text-align:left}.weather-location-heading>.result-label{padding-top:3px;flex-shrink:0}.weather-location-summary{display:flex;flex:1;flex-wrap:wrap;gap:6px 18px;min-width:0;margin:0;font-size:.8rem;line-height:1.6;text-align:left}.weather-location-summary>div{display:flex;gap:8px;min-width:0}.weather-location-summary dt{color:var(--muted);flex-shrink:0}.weather-location-summary dd{margin:0;color:var(--text);overflow-wrap:anywhere}.weather-location-summary .weather-coordinates{flex-basis:100%;font-variant-numeric:tabular-nums}@media(max-width:520px){.weather-location-summary{flex-basis:100%}.weather-location-summary .weather-coordinates{flex-wrap:wrap;gap:2px 8px}}
/* Games, finance and personal hobbies */
.game-panel,.finance-panel,.hobby-space{max-width:800px;margin:auto}.game-status{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:18px}.game-status strong{font-size:1.2rem}.game-status span{color:var(--muted)}.board-scroll{overflow-x:auto;padding:5px;margin:0 -5px}.game-board{display:grid;grid-template-columns:repeat(var(--board-size),minmax(0,1fr));width:100%;margin:auto}.stone-board{min-width:calc(var(--board-size)*26px);max-width:580px;background:#dbb77c;border:8px solid #b38b51;padding:8px}.board-cell{aspect-ratio:1;position:relative;background:transparent;display:grid;place-items:center;padding:0;min-width:0;color:#182621}.stone-board .board-cell{background:linear-gradient(#785e37,#785e37) center/1px 100% no-repeat,linear-gradient(#785e37,#785e37) center/100% 1px no-repeat}.board-cell:disabled{opacity:1;cursor:default}.board-cell:focus-visible{z-index:1;outline:3px solid #0069cb;outline-offset:-2px}.stone{width:83%;height:83%;border-radius:50%;z-index:1;box-shadow:1px 2px 3px #0005;display:grid;place-items:center}.stone.player-1{background:#17201e;color:white;border:1px solid #070b09}.stone.player-2{background:#fffdfa;color:#182621;border:1px solid #aa9980}.last-move .stone:after{content:'';position:absolute;width:5px;height:5px;border-radius:50%;background:#ef6343}.ox-board{max-width:360px;gap:8px}.ox-board .board-cell{background:var(--soft);border:1px solid var(--line);border-radius:12px}.ox-board .stone{background:none;border:0;box-shadow:none;color:var(--accent);font-size:clamp(2rem,8vw,3.8rem);font-weight:750}.ox-board .player-2{color:var(--text)}.ox-board .last-move .stone:after{display:none}.game-actions{margin-top:20px}.tool-help{margin-top:24px;border-top:1px solid var(--line);padding-top:16px}.tool-help summary{cursor:pointer;font-weight:650}.tool-help p{font-size:.85rem;margin-top:12px}.finance-results{margin:0 0 20px;text-align:left}.finance-results>div{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin:14px 0}.finance-results dd{margin:0;font-size:1.2rem;font-weight:700;overflow-wrap:anywhere}.finance-panel .number-field input{font-size:1.3rem}.hobby-suggestions,.hobby-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:20px 0}.hobby-suggestions article,.hobby-list article{padding:20px;background:var(--soft);border:1px solid var(--line);border-radius:16px;overflow-wrap:anywhere}.hobby-suggestions h3,.hobby-list h3{margin-bottom:8px}.hobby-suggestions p{font-size:.85rem}.hobby-form{display:grid;gap:14px;margin:24px 0}.hobby-form label{display:grid;gap:6px}.hobby-form input{padding:10px 12px;min-height:44px;width:100%}.hobby-form>.primary{justify-self:start}.hobby-list progress{width:100%;height:12px;accent-color:var(--accent);margin-bottom:14px}.hobby-entries{padding:0;list-style:none}.hobby-entries li{display:flex;justify-content:space-between;gap:12px;padding:14px 0;border-bottom:1px solid var(--line);overflow-wrap:anywhere}.hobby-entries p{margin:4px 0 0}.hobby-entries>li>div{min-width:0}.hobby-entries button{flex-shrink:0;font-size:1.3rem}.hobby-space small{font-weight:400;color:var(--muted)}@media(max-width:520px){.hobby-suggestions,.hobby-list{grid-template-columns:1fr}.stone-board{padding:4px;border-width:5px}.finance-results dd{font-size:1rem}}
/* Persistently identify the winner and every cell in the winning line. */
.game-status.game-victory{align-items:center;justify-content:flex-start;gap:10px;padding:16px 18px;border:2px solid #b78319;border-radius:14px;background:#fff3cf;color:#493100}.game-victory strong{font-size:1.4rem}.game-victory>span{color:inherit}.game-victory .victory-icon{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:#f2ce6d;flex-shrink:0}.game-victory .victory-description{flex-basis:100%;margin:0;font-size:.8rem;color:inherit}.stone-board .winning-cell .stone{outline:3px solid #ffd35e;box-shadow:0 0 0 4px #775000}.winning-mark{position:absolute;right:0;bottom:0;z-index:2;width:14px;height:14px;display:grid;place-items:center;border-radius:50%;background:#ffd35e;color:#362600;font-size:11px;font-weight:900;line-height:1}.winning-cell.last-move .stone:after{display:none}.ox-board .winning-cell{background:#fff1bf;border:3px solid #b78319}.ox-board .winning-cell .stone{color:#493100}.ox-board .winning-mark{width:24px;height:24px;font-size:18px;right:5px;bottom:5px}:root[data-theme=dark] .game-status.game-victory{background:#40351d;border-color:#e6bd57;color:#ffe8a3}:root[data-theme=dark] .game-victory .victory-icon{background:#66501c}:root[data-theme=dark] .ox-board .winning-cell{background:#40351d;border-color:#e6bd57}:root[data-theme=dark] .ox-board .winning-cell .stone{color:#ffe8a3}@media(max-width:520px){.game-victory strong{font-size:1.15rem}.game-status.game-victory{padding:12px}.winning-mark{width:12px;height:12px;font-size:10px}}
/* Home shortcut entry and native dismissible bookmark/install popover. */
.home-hero{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.home-hero h1{margin-bottom:0}.quick-access-trigger{flex-shrink:0;white-space:nowrap}.quick-access-trigger svg{width:18px;height:18px}.quick-access-popover{position:fixed;inset:0;margin:auto;width:min(540px,calc(100vw - 28px));max-height:calc(100dvh - 32px);overflow-y:auto;color:var(--text);box-shadow:0 18px 80px #0006;text-align:left}.quick-access-popover::backdrop{background:#0006}.quick-access h3{font-size:.95rem;margin:20px 0 8px}.shortcut-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:16px 0 8px}.bookmark-link{display:inline-flex;align-items:center;gap:9px;min-height:44px;padding:8px 16px;border:1px dashed var(--accent);border-radius:12px;font-weight:700;cursor:grab;background:var(--tint)}.bookmark-link:active{cursor:grabbing}.bookmark-steps{padding-left:22px;font-size:.85rem;margin-bottom:12px}.bookmark-steps li{margin:8px 0}.quick-access kbd{font-family:inherit;font-size:.8rem;background:var(--soft);border:1px solid var(--line);border-radius:4px;padding:2px 5px;white-space:nowrap}.shortcut-mobile{border-top:1px solid var(--line);padding-top:12px;font-size:.85rem}.shortcut-mobile summary{cursor:pointer;font-weight:650}.shortcut-mobile p{margin-top:10px}@media(max-width:520px){.quick-access-trigger{margin-left:auto;font-size:.76rem;padding:8px 12px}.quick-access-popover{padding:18px}.quick-access-popover .section-heading{gap:8px}}
.feedback-panel{max-width:900px;margin:0 auto 24px;overflow-wrap:anywhere}.feedback-form{display:grid;gap:16px;margin:24px 0}.feedback-form fieldset{border:0;padding:0;margin:0;min-width:0;display:grid;gap:16px}.feedback-form label{display:grid;gap:8px}.feedback-form input,.feedback-form select,.feedback-form textarea{width:100%;min-width:0;font:inherit;color:var(--text);background:var(--soft);border:1px solid var(--line);border-radius:12px;padding:12px;min-height:44px}.feedback-form textarea{resize:vertical}.feedback-form .feedback-check{display:flex;align-items:flex-start;gap:12px;font-size:.85rem}.feedback-check input{width:20px;height:20px;min-height:20px;flex-shrink:0}.feedback-form small,.feedback-panel .field-help{color:var(--muted);font-size:.8rem}.feedback-form button{justify-self:start}.feedback-columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.feedback-trap{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}.feedback-message{white-space:pre-wrap;overflow-wrap:anywhere}.feedback-badge{display:inline-block;background:var(--soft);color:var(--accent);border:1px solid var(--line);padding:8px 14px;border-radius:30px}.feedback-id{font-family:monospace;word-break:break-all}.feedback-event{padding:16px 0;border-bottom:1px solid var(--line)}.feedback-event time{display:block;font-size:.75rem;color:var(--muted);margin-top:6px}.feedback-row{display:grid;gap:8px;width:100%;text-align:left;background:var(--soft);border:1px solid var(--line);border-radius:14px;padding:16px;margin:12px 0;overflow-wrap:anywhere}.feedback-row span{font-size:.85rem}.feedback-detail{border-top:2px solid var(--line);margin-top:32px;padding-top:24px}.feedback-panel .button-row{display:flex;gap:12px;flex-wrap:wrap;margin:16px 0}@media(max-width:550px){.feedback-columns{grid-template-columns:1fr}.feedback-panel h1{font-size:1.7rem}.feedback-panel{padding:20px}}