:root{--ink:#182033;--muted:#718096;--line:#dfe5ee;--primary:#5c6df6;--bg:#f8fafc}
*{box-sizing:border-box}html,body,#app{width:100%;height:100%;margin:0;overflow:hidden;font-family:Inter,Segoe UI,Arial,sans-serif;color:var(--ink);background:var(--bg)}button,input{font:inherit}.topbar{height:58px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:0 16px;background:#fff;border-bottom:1px solid var(--line);position:relative;z-index:5}.brand{display:flex;align-items:center;gap:9px}.logo,.dialog-logo{width:32px;height:32px;display:grid;place-items:center;border-radius:9px;color:#fff;background:var(--primary);box-shadow:0 5px 14px #5c6df644}.title-input{width:min(360px,35vw);border:1px solid transparent;background:transparent;text-align:center;border-radius:8px;padding:7px;font-weight:600;color:var(--ink)}.title-input:hover,.title-input:focus{border-color:var(--line);outline:none;background:#f8fafc}.top-actions{display:flex;align-items:center;justify-content:flex-end;gap:10px}.button{border:1px solid var(--line);background:#fff;border-radius:9px;padding:9px 13px;font-weight:650;font-size:13px;cursor:pointer}.button.primary{border-color:var(--primary);background:var(--primary);color:#fff}.button.large{width:100%;padding:12px}.avatars{display:flex}.avatar{width:29px;height:29px;border-radius:50%;display:grid;place-items:center;color:white;font-size:10px;font-weight:700;border:2px solid white;margin-left:-6px}.save-status{font-size:12px;color:var(--muted);white-space:nowrap}.save-status i{display:inline-block;width:7px;height:7px;background:#19a974;border-radius:50%;margin-right:4px}.workspace{position:relative;height:calc(100% - 58px);overflow:hidden}.workspace canvas{display:block;width:100%;height:100%;cursor:default;background-color:#f9fbfd;background-image:radial-gradient(#cbd4e0 1px,transparent 1px);background-size:24px 24px}.toolbar{position:absolute;z-index:3;left:14px;top:50%;transform:translateY(-50%);width:145px;padding:6px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 12px 35px #26344c18}.toolbar button{width:100%;height:35px;border:0;background:transparent;border-radius:7px;display:grid;grid-template-columns:20px 1fr auto;align-items:center;gap:7px;padding:0 8px;color:#526075;text-align:left;font-size:13px;cursor:pointer}.toolbar button:hover{background:#f2f5f9}.toolbar button.active{background:#e9edff;color:#4c5de0;font-weight:700}.toolbar kbd{font-size:10px;color:#a0a9b7}.colorbar,.history,.zoom{position:absolute;z-index:3;bottom:14px;display:flex;align-items:center;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 5px 18px #26344c16}.colorbar{left:50%;transform:translateX(-50%);padding:8px;gap:8px}.color{width:20px;height:20px;border:2px solid white;border-radius:50%;background:var(--c);box-shadow:0 0 0 1px #ccd4df;cursor:pointer}.color.active{box-shadow:0 0 0 2px white,0 0 0 4px var(--primary)}.history{left:14px}.history button,.zoom button{width:38px;height:36px;border:0;border-right:1px solid #e7ebf0;background:transparent;cursor:pointer;color:#526075;font-size:18px}.history button:last-child,.zoom button:last-child{border:0}.zoom{right:14px}.zoom span{width:58px;text-align:center;font-size:12px}.connection{position:absolute;right:14px;top:14px;padding:7px 10px;border-radius:99px;background:#eaf8f2;color:#13815d;font-size:11px;font-weight:700}.connection.offline{background:#fff2f0;color:#c04c40}.remote-cursor{position:absolute;pointer-events:none;z-index:4;transition:transform .07s linear}.remote-cursor:before{content:"";display:block;width:0;height:0;border-left:8px solid transparent;border-right:3px solid transparent;border-bottom:18px solid var(--user-color);transform:rotate(-35deg)}.remote-cursor span{display:block;margin:0 0 0 9px;padding:4px 7px;border-radius:6px;background:var(--user-color);color:#fff;font-size:10px;white-space:nowrap}
.modal{display:none;position:fixed;inset:0;z-index:20;place-items:center;padding:20px;background:#10182780;backdrop-filter:blur(4px)}.modal.visible{display:grid}.dialog{width:min(390px,100%);position:relative;background:#fff;border-radius:16px;padding:28px;box-shadow:0 30px 90px #10182755}.dialog h1,.dialog h2{margin:17px 0 7px;font-size:23px}.dialog p{color:var(--muted);line-height:1.5;font-size:13px;margin:0 0 20px}.dialog label{display:block;font-size:12px;font-weight:700;margin:13px 0}.dialog label input,.copy-row input{display:block;width:100%;margin-top:6px;border:1px solid var(--line);border-radius:9px;padding:11px;outline:none}.dialog input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #5c6df618}.dialog small{display:block;color:#dc4b55;text-align:center;margin-top:10px}.close{position:absolute;right:14px;top:14px;border:0;background:#f1f4f8;border-radius:7px;width:31px;height:31px;font-size:21px;cursor:pointer}.copy-row{display:flex;gap:8px}.copy-row input{margin:0;min-width:0}.toast{position:fixed;z-index:40;left:50%;bottom:24px;transform:translate(-50%,20px);opacity:0;background:#172033;color:white;border-radius:9px;padding:10px 14px;font-size:12px;transition:.2s}.toast.visible{opacity:1;transform:translate(-50%,0)}
@media(max-width:700px){.topbar{grid-template-columns:1fr auto}.title-input,.avatars,.save-status{display:none}.toolbar{left:8px;width:44px;padding:5px}.toolbar button{display:grid;grid-template-columns:1fr;padding:0;text-align:center}.toolbar button span,.toolbar kbd{display:none}.history{left:8px}.colorbar{display:none}.zoom{right:8px}.button{padding:8px}.workspace{height:calc(100% - 58px)}}
.brand-logo{width:34px;height:34px;display:block}.dialog-brand{width:48px;height:48px;display:block}
.button.ghost{background:#fff;color:#526075}.hidden{display:none!important}.text-button{width:100%;border:0;background:transparent;color:var(--primary);font-weight:700;font-size:12px;margin-top:13px;cursor:pointer}.eyebrow{font-size:10px;font-weight:800;letter-spacing:.12em;color:var(--primary)}.plans-dialog{width:min(880px,96vw)}.plans-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:22px 0}.plans-grid article{position:relative;border:1px solid var(--line);border-radius:13px;padding:20px;display:flex;flex-direction:column}.plans-grid article.featured{border:2px solid var(--primary);background:#f8f9ff}.plans-grid em{position:absolute;right:10px;top:10px;background:#e8ecff;color:#4d5ddd;padding:4px 6px;border-radius:5px;font-size:8px;font-style:normal;font-weight:800}.plans-grid h3{margin:0 0 15px}.plans-grid strong{font-size:25px}.plans-grid>article>span{font-size:11px;color:var(--muted)}.plans-grid ul{padding-left:18px;line-height:1.9;font-size:12px;flex:1}.plans-dialog>small{color:var(--muted);text-align:left}.action-dialog textarea{display:block;width:100%;min-height:110px;margin-top:7px;padding:11px;border:1px solid var(--line);border-radius:9px;resize:vertical}.dialog-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:18px}
.button.danger,#actionConfirm.danger{background:#dc4b55;border-color:#dc4b55;color:#fff}
@media(max-width:700px){#plansButton{display:none}.plans-grid{grid-template-columns:1fr;max-height:58vh;overflow:auto}.plans-dialog{padding:21px}}