/* Couleurs du widget. Le thème (data-ai-theme="light" | "dark") est posé par widget.js sur le conteneur:
   le choix du visiteur, sinon le réglage clair/sombre de son système. */
.ai-assistant-widget {
    --ai-accent: #2c3e50;
    --ai-on-accent: #fff;
    --ai-panel: #fff;
    --ai-text: #222;
    --ai-bot: #f1f2f4;
    --ai-border: #eee;
    --ai-input-bg: #fff;
    --ai-muted: #666;
    --ai-error-bg: #fdecea;
    --ai-error-text: #611a15;
    --ai-link: #2c3e50;
    --ai-lang-active-bg: #fff;
    --ai-lang-active-text: #2c3e50;
    --ai-coupon: #27ae60;
    --ai-coupon-disabled: #9fd8b8;
    --ai-shadow: rgba(0, 0, 0, 0.25);
}

.ai-assistant-widget[data-ai-theme="dark"] {
    --ai-accent: #3d5a80;
    --ai-panel: #1f2329;
    --ai-text: #e6e8eb;
    --ai-bot: #2b3038;
    --ai-border: #343a43;
    --ai-input-bg: #1f2329;
    --ai-muted: #9aa3ad;
    --ai-error-bg: #4a2523;
    --ai-error-text: #f5c6c2;
    --ai-link: #8ec1ff;
    --ai-lang-active-text: #1f2329;
    --ai-coupon: #2e9e5b;
    --ai-coupon-disabled: #3f6b52;
    --ai-shadow: rgba(0, 0, 0, 0.6);
}

.ai-assistant-widget {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 9999;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.ai-assistant-toggle {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--ai-accent);
    color: var(--ai-on-accent);
    border: none;
    cursor: pointer;
    box-shadow: 0 2px 10px var(--ai-shadow);
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ai-assistant-panel {
    position: absolute;
    bottom: 70px;
    right: 0;
    width: 320px;
    max-height: 420px;
    background: var(--ai-panel);
    color: var(--ai-text);
    border-radius: 12px;
    box-shadow: 0 4px 20px var(--ai-shadow);
    display: none;
    flex-direction: column;
    overflow: hidden;
}

.ai-assistant-panel.open {
    display: flex;
}

.ai-assistant-header {
    background: var(--ai-accent);
    color: var(--ai-on-accent);
    padding: 12px 16px;
    font-weight: 600;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.ai-assistant-lang {
    display: inline-flex;
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 12px;
    overflow: hidden;
}

.ai-assistant-lang button {
    background: transparent;
    border: 0;
    color: #fff;
    cursor: pointer;
    font-size: 11px;
    font-weight: 600;
    line-height: 1;
    padding: 4px 8px;
    opacity: 0.75;
}

.ai-assistant-lang button.active {
    background: var(--ai-lang-active-bg);
    color: var(--ai-lang-active-text);
    opacity: 1;
}

.ai-assistant-messages {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
    font-size: 14px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.ai-assistant-message {
    padding: 8px 12px;
    border-radius: 10px;
    max-width: 85%;
    line-height: 1.4;
    /* garde les retours à la ligne du message (l'offre coupon est un paragraphe à part) */
    white-space: pre-line;
}

.ai-assistant-message.user {
    background: var(--ai-accent);
    color: var(--ai-on-accent);
    align-self: flex-end;
}

.ai-assistant-message.bot {
    background: var(--ai-bot);
    color: var(--ai-text);
    align-self: flex-start;
}

.ai-assistant-message.error {
    background: var(--ai-error-bg);
    color: var(--ai-error-text);
    align-self: flex-start;
}

.ai-assistant-message.nav-notice {
    font-style: italic;
    color: var(--ai-muted);
}

.ai-assistant-coupon {
    background: none;
    padding: 0;
    max-width: 100%;
}

.ai-assistant-coupon-apply {
    border: none;
    background: var(--ai-coupon);
    color: #fff;
    padding: 8px 14px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
}

.ai-assistant-coupon-apply:disabled {
    background: var(--ai-coupon-disabled);
    cursor: default;
}

.ai-assistant-input-row {
    display: flex;
    border-top: 1px solid var(--ai-border);
}

.ai-assistant-input-row input {
    flex: 1;
    border: none;
    padding: 10px 12px;
    font-size: 14px;
    outline: none;
    background: var(--ai-input-bg);
    color: var(--ai-text);
}

.ai-assistant-input-row input::placeholder {
    color: var(--ai-muted);
}

.ai-assistant-input-row button {
    border: none;
    background: var(--ai-accent);
    color: var(--ai-on-accent);
    padding: 0 16px;
    cursor: pointer;
}

.ai-assistant-products {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.ai-assistant-products-label {
    font-size: 12px;
    color: var(--ai-muted);
}

.ai-assistant-product-link {
    color: var(--ai-link);
    font-weight: 600;
    text-decoration: underline;
}

.ai-assistant-tools {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.ai-assistant-theme {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 12px;
    color: var(--ai-on-accent);
    cursor: pointer;
    font-size: 15px;
    line-height: 1;
    padding: 2px 7px;
}