:root{font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#172033;background:#f4f7fb;--blue:#3978f6;--muted:#8190a5;--line:#e7edf5}*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button{cursor:pointer}.mobile-shell{height:100dvh;max-width:680px;margin:auto;background:#fbfcff;display:flex;flex-direction:column;box-shadow:0 0 30px #19365d0e}.chat-head{height:70px;display:flex;align-items:center;padding:12px 16px;gap:11px;background:#fff;border-bottom:1px solid var(--line)}.brand-avatar,.visitor-avatar,.ring-avatar{width:42px;height:42px;display:grid;place-items:center;border-radius:15px;color:#fff;background:linear-gradient(145deg,#5c96ff,#2466e6);font-weight:700}.head-copy{display:flex;flex:1;flex-direction:column;gap:3px}.head-copy strong{font-size:16px}.head-copy span,.desk-head small{font-size:12px;color:var(--muted)}.online-dot{display:inline-block;width:7px;height:7px;background:#31c48d;border-radius:50%;margin-right:5px}.icon-btn,.outline-btn{border:0;background:#f2f6ff;color:#3978f6;border-radius:12px;width:37px;height:37px}.announcement{display:flex;gap:8px;align-items:center;background:#fff9e8;color:#876400;font-size:12px;padding:9px 15px}.announcement div{overflow:hidden;white-space:nowrap}.chat-scroll{flex:1;overflow-y:auto;padding:18px 16px;scroll-behavior:smooth}.welcome-card{text-align:center;margin:10px auto 25px;color:#748198;font-size:13px}.welcome-icon{margin:auto auto 8px;width:42px;height:42px;display:grid;place-items:center;background:#e9f1ff;border-radius:50%;font-size:21px}.welcome-card b{color:#53647c}.welcome-card p{margin:5px 0}.bubble{max-width:78%;padding:11px 13px;border-radius:16px;margin:9px 0;white-space:pre-wrap;word-break:break-word;line-height:1.5;box-shadow:0 2px 8px #1b365508}.bubble.customer{background:#3978f6;color:#fff;margin-left:auto;border-bottom-right-radius:5px}.bubble.agent{background:#fff;border:1px solid var(--line);border-bottom-left-radius:5px}.composer{min-height:68px;background:#fff;border-top:1px solid var(--line);display:flex;align-items:center;gap:8px;padding:12px 14px;padding-bottom:max(12px,env(safe-area-inset-bottom))}.composer input{flex:1;min-width:0;border:1px solid #e1e8f1;background:#f7f9fc;border-radius:22px;padding:11px 14px;outline:0}.composer input:focus{border-color:#8cb2ff;background:#fff}.tool-btn{width:38px;height:38px;border:0;border-radius:50%;background:#edf3ff;color:#3978f6;font-size:24px;line-height:1}.send-btn,.primary-btn{height:40px;border:0;border-radius:21px;padding:0 17px;color:#fff;background:var(--blue);font-weight:600}.call-sheet{position:fixed;inset:0;background:#10203c66;display:grid;place-items:center;z-index:10}.call-sheet[hidden]{display:none}.call-card{background:#fff;border-radius:24px;padding:28px 30px;text-align:center;min-width:260px;box-shadow:0 18px 60px #0e23434d}.call-card .ring-avatar{width:64px;height:64px;margin:0 auto 14px;border-radius:22px}.call-card p{font-size:13px;color:var(--muted);margin:8px 0 20px}.call-card button{height:40px;border:0;border-radius:20px;padding:0 18px;color:#fff;margin:0 4px}.accept{background:#25b887}.reject{background:#e65858}.admin-page{min-height:100dvh;background:#f4f7fb}.login-page{min-height:100dvh;display:grid;place-items:center}.login-card{width:min(390px,calc(100% - 32px));background:#fff;padding:36px 32px;border-radius:22px;box-shadow:0 18px 60px #27446e12;text-align:center}.brand-mark{width:52px;height:52px;display:grid;place-items:center;margin:auto;border-radius:17px;color:#fff;background:linear-gradient(145deg,#5c96ff,#2466e6);font-size:24px;font-weight:800}.brand-mark.small{width:38px;height:38px;font-size:17px;border-radius:12px;margin:0}.login-card h1{margin:18px 0 6px;font-size:23px}.login-card p{margin:0 0 25px;color:var(--muted);font-size:13px}.login-card input{width:100%;height:45px;border:1px solid var(--line);border-radius:12px;padding:0 13px;margin-bottom:12px;outline:0}.login-card .primary-btn{width:100%;height:45px}.login-card small{display:block;color:#e05252;margin-top:12px}.desk{height:100dvh;display:flex;background:#fff}.sidebar{width:300px;border-right:1px solid var(--line);background:#fbfcff;display:flex;flex-direction:column}.side-top{height:72px;display:flex;align-items:center;gap:10px;padding:14px 18px;border-bottom:1px solid var(--line)}.side-top small{display:block;color:var(--muted);font-size:11px;margin-top:2px}.side-title{padding:18px 18px 10px;color:#738197;font-size:12px;font-weight:700}.side-title span{float:right;background:#eaf1ff;color:var(--blue);padding:2px 7px;border-radius:10px}.session{padding:14px 18px;border-top:1px solid #edf1f6;cursor:pointer}.session:hover,.session.active{background:#eaf1ff}.session b{display:block}.session small{display:block;color:var(--muted);margin-top:4px}.desk-main{flex:1;min-width:0;display:flex;flex-direction:column}.desk-head{height:72px;display:flex;align-items:center;gap:11px;padding:13px 22px;border-bottom:1px solid var(--line)}.desk-head .visitor-avatar{width:40px;height:40px;border-radius:13px}.desk-head b{display:block}.head-actions{margin-left:auto;display:flex;gap:8px}.outline-btn{width:auto;padding:0 12px;border:1px solid #dbe5f4;background:#fff}.empty-state{text-align:center;margin:auto;color:var(--muted)}.empty-state div{font-size:40px;margin-bottom:12px}.empty-state b{display:block;color:#53647c}.empty-state p{font-size:13px}@media(max-width:700px){.sidebar{width:38%;min-width:130px}.side-top{padding:12px}.side-top>div:last-child{display:none}.desk-head{padding:12px}.head-actions .outline-btn:last-child{display:none}}
 .mini-btn{float:right;border:0;background:#eaf1ff;color:#3978f6;border-radius:8px;padding:3px 7px;font-size:11px}