.ra-ai-chat-shell{max-width:980px;margin:24px auto;background:var(--ra-ai-panel-bg, #fff);border:1px solid #d9dee5;border-radius:16px;padding:24px;box-shadow:0 6px 24px rgba(0,0,0,.04);box-sizing:border-box}
.ra-ai-chat-header h2{margin:0 0 6px;font-size:28px;line-height:1.2}
.ra-ai-chat-header p{margin:0 0 18px;color:#5f6b7a}
.ra-ai-chat-messages{border:1px solid #d9dee5;border-radius:14px;background:var(--ra-ai-message-bg, #f8fafc);padding:18px;min-height:280px;max-height:560px;overflow:auto;margin-bottom:18px;scroll-behavior:smooth;box-sizing:border-box}
.ra-ai-chat-row{display:flex;margin:10px 0}
.ra-ai-chat-row-user{justify-content:flex-end}
.ra-ai-chat-row-assistant{justify-content:flex-start}
.ra-ai-chat-bubble{max-width:82%;padding:14px 16px;border-radius:16px;line-height:1.6;font-size:16px;word-wrap:break-word;box-sizing:border-box;white-space:normal}
.ra-ai-chat-bubble p{margin:0 0 10px}
.ra-ai-chat-bubble p:last-child{margin-bottom:0}
.ra-ai-chat-bubble ul,.ra-ai-chat-bubble ol{margin:10px 0 10px 20px;padding:0}
.ra-ai-chat-bubble-user{background:var(--ra-ai-accent, #9B0000);color:var(--ra-ai-panel-bg, #fff);border-bottom-right-radius:4px}
.ra-ai-chat-bubble-assistant{background:var(--ra-ai-panel-bg, #fff);color:#253041;border:1px solid #d9dee5;border-bottom-left-radius:4px}
.ra-ai-chat-bubble-assistant a{color:var(--ra-ai-source-link, #c7365f);text-decoration:none}
.ra-ai-chat-bubble-assistant a:hover{text-decoration:underline}
.ra-ai-chat-bubble-typing::after{content:'▌';display:inline-block;margin-left:2px;animation:raAiBlink .8s steps(1) infinite;color:var(--ra-ai-accent, #9B0000)}
@keyframes raAiBlink{50%{opacity:0}}
.ra-ai-chat-form textarea{width:100%;padding:14px 16px;border:1px solid #bcc6d2;border-radius:12px;font-size:16px;line-height:1.5;min-height:96px;resize:vertical;box-sizing:border-box}
.ra-ai-chat-form textarea:focus{outline:none;border-color:var(--ra-ai-accent, #9B0000);box-shadow:0 0 0 3px rgba(155,0,0,.10)}
.ra-ai-chat-actions{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:14px}
.ra-ai-chat-actions button{padding:12px 18px;background:var(--ra-ai-accent, #9B0000);color:var(--ra-ai-panel-bg, #fff);border:none;border-radius:8px;cursor:pointer;font-size:16px;font-weight:600;transition:background .15s ease,opacity .15s ease}
.ra-ai-chat-actions button:hover{background:var(--ra-ai-accent-hover, #7f0000)}
.ra-ai-chat-actions button:disabled{opacity:.65;cursor:not-allowed}
.ra-ai-chat-loading{align-items:center;gap:9px;color:#5f6b7a;font-size:14px}
.ra-ai-chat-spinner{width:15px;height:15px;border:2px solid #d2d9e1;border-top-color:var(--ra-ai-accent, #9B0000);border-radius:50%;display:inline-block;animation:raAiSpin .8s linear infinite}
@keyframes raAiSpin{to{transform:rotate(360deg)}}
.ra-ai-sources{margin-top:14px;padding-top:12px;border-top:1px solid #edf0f3;font-size:14px}
.ra-ai-sources strong{display:block;margin-bottom:6px;color:#253041}
.ra-ai-sources ul{margin:8px 0 0 20px;padding:0}
@media(max-width:768px){.ra-ai-chat-shell{margin:16px auto;padding:16px}.ra-ai-chat-bubble{max-width:94%}.ra-ai-chat-actions{flex-direction:column;align-items:stretch}.ra-ai-chat-actions button{width:100%}}

/* 0.9.5 instructions save fix */
.ra-ai-chat-suggestions{margin:0 0 16px}
.ra-ai-chat-suggestions-label{font-size:13px;font-weight:700;color:#5f6b7a;margin-bottom:8px}
.ra-ai-chat-suggestions-list{display:flex;flex-wrap:wrap;gap:8px}
.ra-ai-chat-suggestions-list button{border:1px solid #d9dee5;background:#f3f6f9;color:#253041;border-radius:999px;padding:9px 13px;cursor:pointer;font-size:14px;line-height:1.25;transition:background .15s ease,border-color .15s ease,color .15s ease}
.ra-ai-chat-suggestions-list button:hover{background:#e9eef4;border-color:#c5ced8;color:var(--ra-ai-accent, #9B0000)}
.ra-ai-chat-button-group{display:flex;align-items:center;gap:10px;margin-left:auto}
.ra-ai-chat-actions .ra-ai-chat-clear{background:var(--ra-ai-panel-bg, #fff);color:#253041;border:1px solid #d9dee5}
.ra-ai-chat-actions .ra-ai-chat-clear:hover{background:#f6f8fa;color:var(--ra-ai-accent, #9B0000);border-color:#c5ced8}
.ra-ai-chat-actions .ra-ai-chat-clear:disabled{opacity:.65;cursor:not-allowed}
.ra-ai-chat-shell .ra-ai-sources a{word-break:break-word}
@media(max-width:768px){.ra-ai-chat-button-group{width:100%;display:flex;flex-direction:column-reverse;gap:8px}.ra-ai-chat-button-group button{width:100%}.ra-ai-chat-suggestions-list{flex-direction:column}.ra-ai-chat-suggestions-list button{width:100%;text-align:left}}

/* 0.9.7: in-message loading indicator */
.ra-ai-chat-loading-bubble{display:inline-flex;align-items:center;gap:9px;color:#5f6b7a;font-size:14px;min-width:0}
.ra-ai-chat-row-loading .ra-ai-chat-bubble{opacity:.92}
.ra-ai-chat-actions > .ra-ai-chat-loading{display:none!important}
.ra-ai-source-type {
    display:inline-block;
    font-size:11px;
    line-height:1;
    font-weight:700;
    color:#475569;
    background:#f1f5f9;
    border:1px solid #e2e8f0;
    border-radius:999px;
    padding:3px 7px;
    margin-right:6px;
    vertical-align:middle;
}

/* 1.0.0-beta: floating deployment mode */
.ra-ai-floating {
    position: fixed;
    z-index: 999999;
    bottom: 22px;
    pointer-events: none;
}
.ra-ai-floating-bottom-right { right: 24px; }
.ra-ai-floating-bottom-left { left: 24px; }
.ra-ai-floating-launcher {
    pointer-events: auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 13px 18px;
    background: var(--ra-ai-accent, #9B0000);
    color: var(--ra-ai-panel-bg, #fff);
    border: none;
    border-radius: 999px;
    box-shadow: 0 12px 28px rgba(0,0,0,.18);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: transform .15s ease, background .15s ease, box-shadow .15s ease;
}
.ra-ai-floating-launcher:hover {
    background: var(--ra-ai-accent-hover, #7f0000);
    transform: translateY(-1px);
    box-shadow: 0 16px 34px rgba(0,0,0,.22);
}
.ra-ai-floating-panel {
    pointer-events: auto;
    position: absolute;
    bottom: 64px;
    width: min(520px, calc(100vw - 32px));
    max-width: calc(100vw - 32px);
}
.ra-ai-floating-bottom-right .ra-ai-floating-panel { right: 0; }
.ra-ai-floating-bottom-left .ra-ai-floating-panel { left: 0; }
.ra-ai-floating-panel[hidden] { display: none !important; }
.ra-ai-chat-shell-floating {
    margin: 0;
    max-width: none;
    width: 100%;
    padding: 18px;
    border-radius: 18px;
    box-shadow: 0 18px 55px rgba(15,23,42,.24);
}
.ra-ai-chat-shell-floating .ra-ai-chat-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
}
.ra-ai-chat-shell-floating .ra-ai-chat-header h2 {
    font-size: 20px;
    margin-bottom: 3px;
}
.ra-ai-chat-shell-floating .ra-ai-chat-header p {
    font-size: 13px;
    margin-bottom: 12px;
}
.ra-ai-floating-close {
    flex: 0 0 auto;
    width: 34px;
    height: 34px;
    border-radius: 999px;
    border: 1px solid #d9dee5;
    background: var(--ra-ai-panel-bg, #fff);
    color: #253041;
    font-size: 22px;
    line-height: 1;
    cursor: pointer;
}
.ra-ai-floating-close:hover { background: #f6f8fa; color: var(--ra-ai-accent, #9B0000); }
.ra-ai-chat-shell-floating .ra-ai-chat-messages {
    min-height: 260px;
    max-height: 420px;
    padding: 14px;
}
.ra-ai-chat-shell-floating .ra-ai-chat-bubble {
    max-width: 90%;
    font-size: 15px;
}
.ra-ai-chat-shell-floating .ra-ai-chat-form textarea {
    min-height: 78px;
    font-size: 15px;
}
.ra-ai-chat-shell-floating .ra-ai-chat-actions button {
    padding: 10px 14px;
    font-size: 14px;
}
.ra-ai-chat-shell-floating .ra-ai-chat-suggestions-list button {
    font-size: 13px;
    padding: 8px 11px;
}
@media (max-width: 600px) {
    .ra-ai-floating { left: 12px; right: 12px; bottom: 12px; }
    .ra-ai-floating-launcher { width: 100%; }
    .ra-ai-floating-panel { left: 0 !important; right: 0 !important; bottom: 62px; width: auto; max-width: none; }
    .ra-ai-chat-shell-floating { max-height: calc(100vh - 92px); overflow: hidden; padding: 14px; }
    .ra-ai-chat-shell-floating .ra-ai-chat-messages { max-height: calc(100vh - 330px); min-height: 220px; }
}


/* 1.0.0-beta.1: floating UI sizing, mobile layout, and color variables */
.ra-ai-chat-shell{
    background:var(--ra-ai-panel-bg, #fff);
}
.ra-ai-chat-messages{
    background:var(--ra-ai-message-bg, #f8fafc);
}
.ra-ai-chat-bubble-user{
    background:var(--ra-ai-accent, #9B0000);
    color:var(--ra-ai-user-text, #fff);
}
.ra-ai-chat-bubble-assistant{
    background:var(--ra-ai-assistant-bg, #fff);
    color:var(--ra-ai-assistant-text, #253041);
}
.ra-ai-chat-actions button,
.ra-ai-floating-launcher{
    background:var(--ra-ai-accent, #9B0000);
    color:var(--ra-ai-button-text, #fff);
}
.ra-ai-chat-actions button:hover,
.ra-ai-floating-launcher:hover{
    background:var(--ra-ai-accent-hover, #7f0000);
}
.ra-ai-chat-form textarea:focus{
    border-color:var(--ra-ai-accent, #9B0000);
}
.ra-ai-chat-bubble-typing::after,
.ra-ai-chat-suggestions-list button:hover,
.ra-ai-floating-close:hover{
    color:var(--ra-ai-accent, #9B0000);
}
.ra-ai-chat-bubble-assistant a,
.ra-ai-sources a{
    color:var(--ra-ai-source-link, #c7365f);
}
.ra-ai-floating-panel{
    width:min(520px, calc(100vw - 32px));
    max-width:calc(100vw - 32px);
}
.ra-ai-floating-close{
    width:36px!important;
    height:36px!important;
    min-width:36px!important;
    max-width:36px!important;
    padding:0!important;
    display:inline-flex!important;
    align-items:center!important;
    justify-content:center!important;
    border-radius:50%!important;
    line-height:1!important;
}
.ra-ai-chat-shell-floating{
    display:flex;
    flex-direction:column;
    max-height:calc(100vh - 110px);
}
.ra-ai-chat-shell-floating .ra-ai-chat-messages{
    flex:1 1 auto;
    min-height:240px;
    max-height:min(520px, calc(100vh - 330px));
}
.ra-ai-chat-shell-floating .ra-ai-chat-form{
    flex:0 0 auto;
}
@media (max-width: 600px) {
    .ra-ai-floating{left:12px!important;right:12px!important;bottom:12px!important;}
    .ra-ai-floating-launcher{width:auto;max-width:calc(100vw - 24px);}
    .ra-ai-floating-panel{left:0!important;right:0!important;bottom:62px;width:calc(100vw - 24px);max-width:none;}
    .ra-ai-chat-shell-floating{height:auto;max-height:calc(100vh - 86px);padding:14px 14px 16px;}
    .ra-ai-chat-shell-floating .ra-ai-chat-messages{min-height:180px;max-height:calc(100vh - 315px);margin-bottom:14px;}
    .ra-ai-chat-shell-floating .ra-ai-chat-form textarea{min-height:82px;}
    .ra-ai-chat-shell-floating .ra-ai-chat-actions{margin-top:10px;gap:10px;}
    .ra-ai-chat-shell-floating .ra-ai-chat-button-group{flex-direction:row;justify-content:flex-end;align-items:center;gap:10px;}
    .ra-ai-chat-shell-floating .ra-ai-chat-button-group button{width:auto;min-width:0;}
    .ra-ai-chat-shell-floating .ra-ai-chat-clear{padding-left:14px;padding-right:14px;}
    .ra-ai-chat-shell-floating .ra-ai-chat-actions button[type="submit"]{border-radius:999px;min-width:54px;}
}
@media (max-width: 420px) {
    .ra-ai-chat-shell-floating .ra-ai-chat-header h2{font-size:18px;}
    .ra-ai-chat-shell-floating .ra-ai-chat-messages{max-height:calc(100vh - 340px);}
    .ra-ai-chat-shell-floating .ra-ai-chat-bubble{max-width:95%;}
}
.ra-ai-source-site {
    display:inline-block;
    font-size:11px;
    line-height:1;
    font-weight:700;
    color:#334155;
    background:#eef2ff;
    border:1px solid #c7d2fe;
    border-radius:999px;
    padding:3px 7px;
    margin-right:6px;
    vertical-align:middle;
}

/* 1.2.0 UI/UX polish */
.ra-ai-chat-shell {
    box-shadow: 0 12px 34px rgba(15, 23, 42, .08);
}
.ra-ai-chat-header h2 {
    letter-spacing: -0.015em;
}
.ra-ai-chat-bubble {
    box-shadow: 0 2px 8px rgba(15, 23, 42, .04);
}
.ra-ai-sources {
    border-top: 1px solid #e2e8f0;
    margin-top: 12px;
    padding-top: 10px;
    font-size: 14px;
}
.ra-ai-sources strong {
    color: #334155;
}
.ra-ai-sources ul {
    margin-top: 6px;
}
.ra-ai-floating-launcher {
    box-shadow: 0 10px 26px rgba(15, 23, 42, .18);
    font-weight: 800;
    letter-spacing: .01em;
}
.ra-ai-floating-panel {
    filter: drop-shadow(0 22px 44px rgba(15, 23, 42, .20));
}
.ra-ai-chat-suggestions-label {
    font-weight: 700;
    color: #475569;
}
.ra-ai-chat-suggestions-list button {
    transition: transform .15s ease, border-color .15s ease, background .15s ease;
}
.ra-ai-chat-suggestions-list button:hover {
    transform: translateY(-1px);
}
@media (max-width: 600px) {
    .ra-ai-floating-panel {
        bottom: 70px !important;
    }
    .ra-ai-chat-shell-floating .ra-ai-chat-actions button[type="submit"] {
        height: 42px;
    }
}

/* 1.3.6: isolate floating launcher from site/theme button styles */
.ra-ai-floating {
    bottom: var(--ra-ai-floating-bottom-offset, 22px) !important;
}
.ra-ai-floating-bottom-right {
    right: var(--ra-ai-floating-side-offset, 24px) !important;
}
.ra-ai-floating-bottom-left {
    left: var(--ra-ai-floating-side-offset, 24px) !important;
}
.ra-ai-floating .ra-ai-floating-launcher,
button.ra-ai-floating-launcher {
    all: unset;
    appearance: none !important;
    -webkit-appearance: none !important;
    pointer-events: auto !important;
    box-sizing: border-box !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    min-height: var(--ra-ai-floating-min-height, 48px) !important;
    padding: var(--ra-ai-floating-padding-y, 13px) var(--ra-ai-floating-padding-x, 20px) !important;
    background: var(--ra-ai-floating-bg, var(--ra-ai-accent, #9B0000)) !important;
    color: var(--ra-ai-floating-text, #ffffff) !important;
    border: 1px solid var(--ra-ai-floating-border, var(--ra-ai-floating-bg, #9B0000)) !important;
    border-radius: var(--ra-ai-floating-radius, 999px) !important;
    box-shadow: var(--ra-ai-floating-shadow, 0 12px 28px rgba(15,23,42,.20)) !important;
    font-family: inherit !important;
    font-size: var(--ra-ai-floating-font-size, 15px) !important;
    font-weight: 700 !important;
    line-height: 1.2 !important;
    text-align: center !important;
    text-decoration: none !important;
    white-space: nowrap !important;
    cursor: pointer !important;
    transform: none;
    transition: transform .15s ease, background .15s ease, box-shadow .15s ease, border-color .15s ease !important;
}
.ra-ai-floating .ra-ai-floating-launcher:hover,
button.ra-ai-floating-launcher:hover,
.ra-ai-floating .ra-ai-floating-launcher:focus,
button.ra-ai-floating-launcher:focus {
    background: var(--ra-ai-floating-hover-bg, var(--ra-ai-accent-hover, #7f0000)) !important;
    color: var(--ra-ai-floating-text, #ffffff) !important;
    border-color: var(--ra-ai-floating-border, var(--ra-ai-floating-hover-bg, #7f0000)) !important;
    text-decoration: none !important;
    transform: translateY(-1px);
}
.ra-ai-floating .ra-ai-floating-launcher:focus-visible,
button.ra-ai-floating-launcher:focus-visible {
    outline: 3px solid rgba(155,0,0,.22) !important;
    outline-offset: 3px !important;
}
@media (max-width: 600px) {
    .ra-ai-floating { left: 12px !important; right: 12px !important; bottom: 12px !important; }
    .ra-ai-floating .ra-ai-floating-launcher,
    button.ra-ai-floating-launcher { width: auto !important; max-width: calc(100vw - 24px) !important; }
}