:root{--bg: #f6f7f5;--card: #ffffff;--text: #1d2422;--muted: #4f5a56;--line: #d3d9d6;--track: #e4e8e6;--accent: #2d6b60;--accent-text: #ffffff;--accent-soft: #e3f0ec;--error: #b3261e;--error-soft: #fbeceb;--warn-bg: #fdf1dc;--warn-text: #6b4100;--warn-line: #e2b45c;--focus: #1f5fbf;--radius: 14px;color-scheme:light;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:16px;line-height:1.45;background:var(--bg);color:var(--text);-webkit-text-size-adjust:100%}:root[data-theme=dark]{--bg: #121615;--card: #1b211f;--text: #e7ecea;--muted: #a6b2ad;--line: #3a4440;--track: #252c2a;--accent: #6cc2b1;--accent-text: #0c1513;--accent-soft: #1f3530;--error: #ff8a80;--error-soft: #3a1d1b;--warn-bg: #3a2c12;--warn-text: #ffd58a;--warn-line: #7a5b1d;--focus: #8cb8ff;color-scheme:dark}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent}p{margin:0}button{font:inherit;color:inherit;touch-action:manipulation}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}.skip{position:absolute;left:12px;top:-60px;z-index:10;background:var(--accent);color:var(--accent-text);padding:10px 14px;border-radius:10px;font-weight:600;text-decoration:none}.skip:focus{top:12px}.app{max-width:640px;margin:0 auto;padding:calc(16px + env(safe-area-inset-top)) calc(16px + env(safe-area-inset-right)) calc(32px + env(safe-area-inset-bottom)) calc(16px + env(safe-area-inset-left));display:flex;flex-direction:column;gap:14px}.top{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}h1{margin:0;font-size:1.6rem;letter-spacing:-.01em}.sub{color:var(--muted);font-size:.95rem;margin-top:2px}main:focus{outline:none}.icon-btn{flex:none;width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:var(--card);color:var(--text);display:grid;place-items:center;cursor:pointer;font-size:1.15rem}.icon-btn svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round}.icon-btn .moon{fill:currentColor;stroke:none}.icon-btn .sun,[data-theme=dark] .icon-btn .moon{display:none}[data-theme=dark] .icon-btn .sun{display:block}.disclaimer{font-size:.85rem;color:var(--warn-text);background:var(--warn-bg);border:1px solid var(--warn-line);border-radius:10px;padding:8px 12px}.status{font-size:.9rem;border-radius:10px;background:var(--accent-soft);color:var(--text);padding:8px 12px}.status:empty{padding:0}.update{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;font-size:.9rem;border:1px solid var(--accent);border-radius:10px;padding:10px 12px;background:var(--card)}.problem{border-color:var(--warn-line);background:var(--warn-bg);color:var(--warn-text)}.problem p{flex:1 1 200px}.tabs{position:sticky;top:env(safe-area-inset-top);z-index:2;display:grid;grid-template-columns:repeat(5,1fr);gap:2px;padding:4px;background:var(--track);border:1px solid var(--line);border-radius:12px}.tabs button{border:0;background:transparent;color:var(--muted);font-weight:600;font-size:.86rem;min-height:40px;padding:6px 2px;border-radius:9px;cursor:pointer;transition:background-color .15s,color .15s}.tabs button[aria-selected=true]{background:var(--card);color:var(--text);box-shadow:0 1px 3px #00000024}.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px 16px;display:flex;flex-direction:column;gap:14px}.panel-title{margin:0;font-size:1.1rem}.panel-title:not(:first-child){margin-top:10px;padding-top:16px;border-top:1px solid var(--line)}.panel-head{display:flex;justify-content:space-between;align-items:center;gap:12px}.row{display:grid;grid-template-columns:1fr;gap:14px}@media(min-width:560px){.row{grid-template-columns:1fr 1fr}}.field{display:flex;flex-direction:column;gap:6px;min-width:0}label{font-weight:600;font-size:.9rem}.opt{font-weight:400;color:var(--muted)}input,select{font:inherit;font-size:1.05rem;color:var(--text);background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:11px 12px;width:100%;min-width:0;min-height:46px}input::placeholder{color:var(--muted);opacity:.75}:focus-visible{outline:3px solid var(--focus);outline-offset:2px}input:focus-visible,select:focus-visible{outline-offset:0;border-color:var(--focus)}input[aria-invalid=true]{border-color:var(--error);background:var(--error-soft)}.input-unit{display:flex;gap:8px}.input-unit input{flex:1}.input-unit>span{align-self:center;color:var(--muted);font-weight:600;min-width:2.2em}.input-unit select{width:auto;flex:none}.err{color:var(--error);font-size:.85rem;font-weight:600}.err:empty,.hint:empty{display:none}.hint{color:var(--accent);font-size:.85rem;font-variant-numeric:tabular-nums}.note,.empty,.muted{color:var(--muted);font-size:.85rem}.chips{display:flex;flex-wrap:wrap;gap:6px}.chips button{font-size:.85rem;border:1px solid var(--line);background:transparent;color:var(--text);min-height:34px;padding:5px 12px;border-radius:999px;cursor:pointer}.chips button strong{font-weight:650}.saved-chips button{background:var(--accent-soft);border-color:transparent}.preset-chips button{background:var(--accent-soft);border-color:var(--accent)}.seg{display:inline-flex;align-self:flex-start;border:1px solid var(--line);border-radius:10px;overflow:hidden;margin:0;padding:0}.seg label{position:relative;font-weight:500}.seg input{position:absolute;opacity:0;width:1px;height:1px;min-height:0}.seg span{display:block;padding:9px 16px;font-size:.92rem;cursor:pointer;color:var(--muted)}.seg input:checked+span{background:var(--accent);color:var(--accent-text);font-weight:600}.seg input:focus-visible+span{outline:3px solid var(--focus);outline-offset:-3px}.convert-row{display:grid;grid-template-columns:1fr auto 1fr;gap:10px;align-items:end}.swap{margin-bottom:1px}.result{display:block;border-radius:12px;padding:14px;background:var(--accent-soft);font-variant-numeric:tabular-nums}.result.pending,.result.invalid{background:transparent;border:1px dashed var(--line)}.pending-msg{color:var(--muted);font-size:.92rem}.result.warn{background:var(--warn-bg);border:1px solid var(--warn-line)}.warning{color:var(--warn-text);font-weight:600;font-size:.9rem;margin-bottom:8px}.label{color:var(--muted);font-size:.85rem}.big{font-size:2rem;font-weight:700;line-height:1.15;overflow-wrap:anywhere}.big .unit{font-size:1.2rem;font-weight:600;color:var(--muted)}.extra{color:var(--muted);font-size:.9rem;margin-top:2px}.steps{margin:10px 0 0;padding-left:1.3em;font-size:.92rem;display:grid;gap:2px}.btn{align-self:flex-start;min-height:44px;padding:10px 16px;border-radius:10px;border:1px solid var(--line);background:var(--card);color:var(--text);font-weight:600;cursor:pointer;transition:background-color .15s,opacity .15s}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.primary{background:var(--accent);color:var(--accent-text);border-color:var(--accent)}.btn.danger{color:var(--error)}.btn.small{min-height:36px;padding:6px 12px;font-size:.88rem}.inline-form{display:flex;flex-direction:column;gap:12px}details.save-preset{border-top:1px solid var(--line);padding-top:12px}details.save-preset summary{cursor:pointer;font-weight:600;min-height:32px;display:flex;align-items:center;color:var(--accent)}details.save-preset[open] summary{margin-bottom:12px}.list{list-style:none;margin:0;padding:0;display:grid;gap:8px}.list:empty{display:none}.list li{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--line);border-radius:10px}.item-text{display:grid;gap:1px;min-width:0;overflow-wrap:anywhere}.item-actions{display:flex;gap:6px;flex:none}#history-list li{padding:0}.history-item{display:grid;grid-template-columns:auto 1fr;gap:2px 10px;width:100%;text-align:left;border:0;background:transparent;padding:10px 12px;border-radius:10px;cursor:pointer}.history-item .tag{grid-row:span 2;align-self:start;font-size:.75rem;font-weight:700;color:var(--accent);background:var(--accent-soft);padding:2px 8px;border-radius:999px}.history-item .summary{overflow-wrap:anywhere;font-variant-numeric:tabular-nums}.history-item time{font-size:.8rem}.foot{color:var(--muted);font-size:.8rem;text-align:center;display:grid;gap:4px}@media(hover:hover){.chips button:hover,.btn:hover:not(:disabled),.history-item:hover{filter:brightness(.96)}[data-theme=dark] .chips button:hover,[data-theme=dark] .btn:hover:not(:disabled),[data-theme=dark] .history-item:hover{filter:brightness(1.15)}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;animation:none!important;scroll-behavior:auto!important}}@media(forced-colors:active){.tabs button[aria-selected=true],.seg input:checked+span{outline:2px solid CanvasText}}