:root{--paper:#f6f5f1;--ink:#242722;--muted:#7b7e75;--line:#e7e6df;--green:#d9f36b;--deep:#38402c;--white:#fff;--mono:'DM Mono',monospace;--sans:'DM Sans',sans-serif;--display:'Manrope',sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);min-height:100vh}.topbar{height:76px;padding:0 max(36px,calc((100vw - 1080px)/2));display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font:800 21px var(--display);letter-spacing:-1.2px}.brand-mark{width:28px;height:28px;border-radius:9px;background:var(--green);display:grid;place-items:center;font:800 19px var(--display);color:#303724;letter-spacing:-1px}.brand-dot{color:#97b42e}.top-note{font-size:12px;color:var(--muted);display:flex;gap:8px;align-items:center}.status-dot,.format-dot{width:7px;height:7px;background:#a9cc45;border-radius:50%;display:inline-block}main{max-width:900px;margin:0 auto;padding:69px 24px 0}.intro{text-align:center;margin-bottom:39px}.eyebrow{font:500 10px var(--mono);letter-spacing:1.8px;color:#86897d;margin-bottom:16px}.intro h1{font:700 clamp(38px,6vw,58px)/1.04 var(--display);letter-spacing:-2.8px;margin:0}.intro h1 em{font-weight:500;color:#838879}.intro p{max-width:480px;margin:18px auto 0;color:#777a71;font-size:14px;line-height:1.6}.workbench{max-width:740px;margin:auto;position:relative}.editor-panel,.preview-panel{background:var(--white);border:1px solid #e6e5dd;border-radius:13px;box-shadow:0 7px 24px #43483008;overflow:hidden}.panel-heading{height:52px;padding:0 20px;border-bottom:1px solid #f0efe9;display:flex;justify-content:space-between;align-items:center}.panel-heading>div{display:flex;align-items:center;gap:11px}.step{font:400 10px var(--mono);color:#9a9d92}.panel-title{font-size:12px;font-weight:600}.language-tag,.format-tag{font:500 9px var(--mono);letter-spacing:1px;color:#898c82}.format-tag{display:flex;align-items:center;gap:7px}.format-dot{width:6px;height:6px}.editor-panel textarea{width:100%;height:91px;border:0;outline:0;resize:vertical;padding:22px 21px 13px;font:15px/1.7 var(--mono);color:#42483c;background:transparent}.editor-footer{padding:0 20px 15px;display:flex;justify-content:space-between;align-items:center;color:#a0a196;font-size:10px}.example{border:0;background:none;color:#748b34;padding:0;font:500 10px var(--sans);cursor:pointer;text-decoration:underline;text-underline-offset:2px}.example:hover{color:#3c4b20}.live-indicator{font:500 9px var(--mono);letter-spacing:.7px;display:flex;align-items:center;gap:6px}.live-indicator i{width:5px;height:5px;background:#a8c844;border-radius:50%}.connector{height:31px;display:grid;place-items:center;color:#a5a797}.connector span{font-size:17px;line-height:1}.preview{min-height:164px;display:flex;justify-content:center;align-items:center;padding:35px 24px;overflow:auto;color:#292d26}.preview mjx-container{font-size:150%!important;max-width:100%;overflow-x:auto;overflow-y:hidden}.placeholder{color:#b5b6ae;font-size:12px}.preview-footer{border-top:1px solid #f0efe9;min-height:62px;padding:10px 15px 10px 20px;display:flex;align-items:center;justify-content:space-between;gap:10px}.hint{font-size:10px;color:#909288;display:flex;gap:7px;align-items:center}.hint-icon{font-size:14px;color:#9aa17e}.actions{display:flex;align-items:center;gap:8px}.copy-actions{display:flex;gap:8px}.button{height:35px;border-radius:7px;padding:0 13px;font:600 11px var(--sans);cursor:pointer;transition:transform .12s,background .12s}.button:active{transform:scale(.97)}.secondary{border:1px solid #e6e6df;background:#fff;color:#55594e}.secondary:hover{background:#f8f8f4}.secondary span{margin-left:4px}.primary{border:1px solid #cce75b;background:var(--green);color:#31382a;padding:0 15px}.primary:hover{background:#d1ed5c}.copy-icon{font-size:14px;margin-right:5px}.error{font-size:11px;color:#a44236;padding:10px 14px;background:#fff0ed;border-radius:7px;margin-top:10px}.how{max-width:740px;margin:41px auto 0;display:flex;justify-content:space-between;align-items:center;padding:0 4px}.how-title{font:600 13px var(--display);letter-spacing:-.3px}.how-title span{color:#898d80;font-weight:500}.how-items{display:flex;align-items:center;gap:11px}.how-items>div:not(.how-line){display:flex;gap:6px;align-items:center;font-size:10px;color:#777a71}.how-items b{font:400 9px var(--mono);color:#a2a493}.how-line{width:22px;height:1px;background:#dcdcd2}footer{max-width:900px;margin:60px auto 0;border-top:1px solid var(--line);padding:17px 24px 24px;display:flex;justify-content:space-between;color:#a0a196;font-size:10px}.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}@media(max-width:600px){.topbar{height:62px;padding:0 20px}main{padding:48px 16px 0}.intro h1{letter-spacing:-1.8px}.intro p{font-size:13px}.preview-footer{align-items:flex-start;flex-direction:column;padding:12px 14px}.actions{width:100%;justify-content:flex-end}.copy-actions{gap:6px}.button{padding:0 9px}.primary{padding:0 10px}.how{align-items:flex-start;flex-direction:column;gap:14px;margin-top:31px}.how-items{gap:7px}.how-line{width:12px}footer{margin-top:40px;gap:12px;flex-direction:column}.editor-footer{font-size:9px}.example{font-size:9px}}