.store-assistant-open{position:fixed;right:18px;bottom:18px;z-index:50;min-height:48px;padding:12px 22px;border:1px solid var(--teal);border-radius:24px;background:var(--teal);color:#fff;font:600 15px 'Segoe UI',Arial,sans-serif;box-shadow:0 4px 14px rgba(32,59,56,.28);cursor:pointer}
.store-assistant-open:hover{background:var(--brand)}
.store-assistant-open:focus-visible,.store-assistant-close:focus-visible,.store-assistant-send:focus-visible,.store-assistant-form textarea:focus-visible,.store-msg-links a:focus-visible{outline:3px solid var(--cane);outline-offset:2px}
.store-assistant{position:fixed;right:18px;bottom:18px;z-index:60;display:flex;flex-direction:column;width:min(380px,calc(100vw - 24px));max-height:min(560px,calc(100vh - 36px));background:#fff;color:var(--ink);border:1px solid var(--line);border-radius:8px;box-shadow:0 10px 36px rgba(32,59,56,.3);font:15px/1.5 'Segoe UI',Arial,sans-serif}
.store-assistant[hidden],.store-assistant-open[hidden]{display:none}
.store-assistant-head{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--teal);color:#fff;border-radius:7px 7px 0 0}
.store-assistant-head h2{margin:0;font:600 17px 'Segoe UI',Arial,sans-serif;color:#fff}
.store-assistant-close{min-width:44px;min-height:44px;border:0;background:none;color:#fff;font-size:28px;line-height:1;cursor:pointer}
.store-assistant-log{flex:1;overflow-y:auto;padding:14px 16px;display:flex;flex-direction:column;gap:10px;min-height:140px}
.store-msg{max-width:88%;padding:9px 12px;border-radius:8px;overflow-wrap:anywhere}
.store-msg p{margin:0;white-space:pre-line}
.store-msg-assistant{align-self:flex-start;background:var(--pale)}
.store-msg-user{align-self:flex-end;background:var(--teal);color:#fff}
.store-msg-links{margin:8px 0 0;padding-left:18px;font-size:14px}
.store-msg-links a{color:var(--teal);text-decoration:underline}
.store-assistant-notice{margin:0;padding:8px 16px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}
.store-assistant-form{display:grid;grid-template-columns:1fr auto;gap:8px;padding:10px 16px 14px;border-top:1px solid var(--line)}
.store-assistant-label{grid-column:1/-1;font-size:13px;font-weight:600}
.store-assistant-form textarea{min-height:46px;resize:none;border:1px solid #829a90;border-radius:3px;padding:10px;font:inherit;color:var(--ink)}
.store-assistant-send{min-height:46px;padding:0 18px;border:1px solid var(--teal);border-radius:3px;background:var(--teal);color:#fff;font:600 14px 'Segoe UI',Arial,sans-serif;cursor:pointer}
.store-assistant-send:disabled{opacity:.5;cursor:not-allowed}
@media (max-width:520px){.store-assistant{right:8px;bottom:8px;width:calc(100vw - 16px);max-height:calc(100vh - 16px)}}
@media (prefers-reduced-motion:no-preference){.store-assistant:not([hidden]){animation:store-pop .18s ease-out}@keyframes store-pop{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}}
.store-assistant-notice a{color:var(--teal);text-decoration:underline}