:root{--cw-primary:#111827}
.cwclient-root{position:fixed;right:20px;bottom:20px;z-index:2147483647;font-family:Inter,Arial,sans-serif;display:flex;flex-direction:column;align-items:flex-end;gap:12px;-webkit-tap-highlight-color:transparent}
.cwclient-tooltip{max-width:240px;padding:12px 14px;background:#fff;border:1px solid #e5e7eb;border-radius:14px;box-shadow:0 14px 34px rgba(0,0,0,.16);color:#111827;cursor:pointer;align-self:flex-end;animation:cwclientTooltipPop 1.5s ease-out forwards}
@keyframes cwclientTooltipPop{0%{opacity:0;transform:translateY(15px)}20%{opacity:1;transform:translateY(0)}40%{opacity:.4}60%{opacity:1}80%{opacity:.7}100%{opacity:1}}
.cwclient-toggle{width:150px;height:150px;padding:0;display:flex;align-items:center;justify-content:center;border:0;background:transparent;box-shadow:none;filter:drop-shadow(0 10px 20px rgba(0,0,0,.2));cursor:pointer;position:relative;transition:transform .2s}
.cwclient-toggle:hover{transform:scale(1.05)}
.cwclient-toggle svg{width:28px;height:28px}
.cwclient-toggle-icon{width:100%;height:100%;object-fit:contain;animation:cwclientFloat 2.5s ease-in-out infinite}
@keyframes cwclientFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
.cwclient-badge{position:absolute;top:2px;right:2px;width:12px;height:12px;background:#ef4444;border:2px solid #fff;border-radius:50%}
.cwclient-badge[hidden]{display:none!important}
.cwclient-panel{width:380px;max-width:calc(100vw - 24px);height:min(620px,72vh);display:flex;flex-direction:column;background:#fff;border:1px solid #e5e7eb;border-radius:20px;box-shadow:0 20px 50px rgba(0,0,0,.18);overflow:hidden;animation:cwclientSlideUp .3s ease-out}
@keyframes cwclientSlideUp{0%{opacity:0;transform:translateY(20px)}100%{opacity:1;transform:translateY(0)}}
@keyframes cwclientSlideDown{0%{opacity:1;transform:translateY(0)}100%{opacity:0;transform:translateY(20px)}}
.cwclient-closing{animation:cwclientSlideDown .25s ease-in forwards}
.cwclient-panel[hidden]{display:none!important}
.cwclient-header{display:flex;align-items:center;justify-content:space-between;padding:16px 18px;border-bottom:1px solid #eef2f7;background:#f8fafc}
.cwclient-header-main{display:flex;align-items:center;gap:12px;min-width:0}
.cwclient-header p{margin:4px 0 0;color:#6b7280;font-size:13px}
.cwclient-header strong{display:block}
.cwclient-avatar{width:44px;height:44px;border-radius:50%;background:var(--cw-primary);color:#fff;display:flex;align-items:center;justify-content:center;overflow:hidden;font-weight:700;flex:0 0 44px}
.cwclient-avatar img{width:100%;height:100%;object-fit:cover}
.cwclient-close{border:0;background:transparent;font-size:24px;line-height:1;cursor:pointer;color:#111827;padding:4px 8px;border-radius:8px;flex:0 0 auto}
.cwclient-close:hover{background:#eef2f7}
.cwclient-messages{flex:1;overflow:auto;padding:14px;background:#f9fafb}
.cwclient-bubble{max-width:85%;padding:10px 12px;border-radius:14px;margin:0 0 10px;line-height:1.55;font-size:14px;white-space:pre-wrap}
.cwclient-bot{background:#fff;border:1px solid #e5e7eb;color:#111827}
.cwclient-bot a{color:#2563eb;text-decoration:underline;word-break:break-word}
.cwclient-bot a[href*="zalo.me"]{display:inline-block;background:#0068ff;color:#fff!important;padding:6px 14px;border-radius:8px;text-decoration:none;font-weight:600;margin-top:6px;box-shadow:0 4px 6px rgba(0,104,255,.2);transition:background .2s}
.cwclient-bot a[href*="zalo.me"]:hover{background:#005be6}
.cwclient-user{background:var(--cw-primary);color:#fff;margin-left:auto}
.cwclient-footer{padding:14px;border-top:1px solid #eef2f7;background:#fff}
.cwclient-zalo{display:inline-flex;margin-bottom:10px;color:#2563eb;text-decoration:none;font-size:13px;font-weight:600}
.cwclient-input-row{display:flex;gap:10px}
.cwclient-input-row input{flex:1;height:44px;border:1px solid #d1d5db;border-radius:999px;padding:0 14px;min-width:0;font-size:16px;-webkit-appearance:none;appearance:none}
.cwclient-input-row button{height:44px;border:0;border-radius:999px;padding:0 16px;background:var(--cw-primary);color:#fff;cursor:pointer;-webkit-appearance:none;appearance:none}
.cwclient-loading{opacity:.7}
.cwclient-quick-replies{display:flex;gap:8px;flex-wrap:wrap;padding:12px 14px;border-top:1px solid #eef2f7;background:#fff;max-height:96px;overflow:auto}
.cwclient-quick-replies button{border:1px solid var(--cw-primary);color:var(--cw-primary);background:#fff;border-radius:999px;padding:8px 12px;cursor:pointer;font-size:12px}
.cwclient-offline{background:#fef08a;color:#9a3412;padding:8px 14px;font-size:13px;text-align:center;font-weight:600;border-bottom:1px solid #fde047}
.cwclient-offline[hidden]{display:none!important}
@media(max-width:640px){.cwclient-root{right:10px;left:10px;bottom:10px;align-items:stretch;gap:10px}.cwclient-panel{width:auto;max-width:100%;height:80vh;height:calc(100dvh - 90px);border-radius:16px}.cwclient-toggle{align-self:flex-end;width:85px;height:85px}.cwclient-footer{padding-bottom:calc(14px + env(safe-area-inset-bottom, 0px))}}