:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:#1d2939;background:#f5f7f8}*{box-sizing:border-box}body{margin:0}button,input{font:inherit}.app{min-height:100vh;display:grid;grid-template-rows:auto 1fr}header{height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 24px;background:#12312f;color:#fff}header div,.icon-text,h2,.wizard-actions button{display:flex;align-items:center;gap:10px}button{border:0;cursor:pointer;border-radius:8px}.icon-text{color:#fff;background:transparent}.workspace{display:grid;grid-template-columns:360px 1fr;min-height:0}.wizard{border-right:1px solid #dde5e4;padding:22px;background:#fff;display:grid;grid-template-rows:auto auto 1fr auto;gap:16px}h2{margin:0;font-size:20px}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.steps button{height:36px;background:#eef4f3;color:#315b59}.steps .active{background:#19706a;color:#fff}.node-list{display:grid;align-content:start;gap:10px;overflow:auto}.node-list button{min-height:46px;text-align:left;padding:0 12px;background:#f8fafb;color:#1d2939;border:1px solid #e4e7ec}.node-list .selected{border-color:#19706a;background:#e5f5f3}.wizard-actions{display:flex;justify-content:space-between;gap:12px}.wizard-actions button,.composer button,.login-box button{min-height:42px;padding:0 14px;background:#19706a;color:#fff}button:disabled{opacity:.45;cursor:not-allowed}.chat{display:grid;grid-template-rows:auto 1fr auto;min-width:0}.chat-title{padding:18px 24px;border-bottom:1px solid #dde5e4;background:#fff;display:flex;flex-direction:column;gap:4px}.chat-title span{font-size:18px;font-weight:700}.chat-title small{color:#667085}.messages{padding:24px;overflow:auto;display:grid;align-content:start;gap:12px}.message{max-width:min(780px,88%);padding:14px 16px;border-radius:8px;background:#fff;border:1px solid #e4e7ec;white-space:pre-wrap}.message.user{justify-self:end;background:#19706a;color:#fff}.message small{display:block;margin-top:8px;color:#667085}.composer{display:grid;grid-template-columns:1fr auto;gap:10px;padding:16px 24px;background:#fff;border-top:1px solid #dde5e4}input{min-height:42px;border:1px solid #d0d5dd;border-radius:8px;padding:0 12px}.login-page{min-height:100vh;display:grid;place-items:center;background:#eaf4f2}.login-box{width:min(420px,calc(100vw - 32px));display:grid;gap:12px;background:#fff;border:1px solid #dbe4e2;border-radius:8px;padding:28px}.login-box h1{margin:0}.error{margin:0;color:#b42318}@media(max-width:900px){.workspace{grid-template-columns:1fr}.wizard{border-right:0;border-bottom:1px solid #dde5e4;max-height:46vh}}