.tcu-support-assistant {
    bottom: 24px;
    pointer-events: none;
    position: fixed;
    right: 24px;
    z-index: 12000;
}

.tcu-support-assistant__launcher {
    align-items: center;
    background: #078767;
    border: 0;
    border-radius: 999px;
    box-shadow: 0 12px 30px rgba(7, 135, 103, .25);
    color: #fff;
    cursor: pointer;
    display: inline-flex;
    font: 800 15px/1.2 "Be Vietnam Pro", system-ui, sans-serif;
    gap: 8px;
    min-height: 46px;
    padding: 0 18px;
    pointer-events: auto;
    position: relative;
    touch-action: manipulation;
    z-index: 2;
}

.tcu-support-assistant__launcher::before {
    content: "?";
    align-items: center;
    background: rgba(255, 255, 255, .18);
    border-radius: 999px;
    display: inline-flex;
    height: 24px;
    justify-content: center;
    width: 24px;
}

.tcu-support-assistant__launcher.has-media-icon::before {
    content: none;
    display: none;
}

.tcu-support-assistant__launcher-icon,
.tcu-support-assistant__launcher-icon.tcu-icon-asset {
    align-items: center;
    background: rgba(255, 255, 255, .18);
    border-radius: 999px;
    color: #fff;
    display: inline-flex;
    flex: 0 0 24px;
    font-size: 14px;
    font-weight: 900;
    height: 24px;
    justify-content: center;
    width: 24px;
}

.tcu-support-assistant__launcher-icon.tcu-icon-asset img {
    display: block;
    height: 17px;
    object-fit: contain;
    width: 17px;
}

.tcu-support-assistant__panel {
    background: #fff;
    border: 1px solid #d6e5df;
    border-radius: 18px;
    bottom: 58px;
    box-shadow: 0 20px 56px rgba(8, 33, 43, .18);
    overflow: hidden;
    position: absolute;
    pointer-events: auto;
    right: 0;
    width: min(380px, calc(100vw - 32px));
    z-index: 3;
}

.tcu-support-assistant__head {
    align-items: center;
    background: #eff8f4;
    display: flex;
    justify-content: space-between;
    padding: 16px;
}

.tcu-support-assistant__head span {
    color: #078767;
    display: block;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .02em;
    text-transform: uppercase;
}

.tcu-support-assistant__head h2 {
    color: #102333;
    font-size: 20px;
    line-height: 1.2;
    margin: 2px 0 0;
}

.tcu-support-assistant__head button {
    align-items: center;
    background: #fff;
    border: 1px solid #cdded8;
    border-radius: 999px;
    color: #102333;
    cursor: pointer;
    display: inline-flex;
    font-size: 24px;
    font-weight: 700;
    height: 38px;
    justify-content: center;
    line-height: 1;
    width: 38px;
}

.tcu-support-assistant__body {
    display: grid;
    gap: 12px;
    max-height: min(68vh, 620px);
    overflow: auto;
    padding: 16px;
}

.tcu-support-assistant__greeting,
.tcu-support-assistant__answer p {
    color: #536879;
    font-size: 14px;
    line-height: 1.55;
    margin: 0;
}

.tcu-support-assistant__topics {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tcu-support-assistant__topics button,
.tcu-support-assistant__ghost,
.tcu-support-assistant__escalate button,
.tcu-support-assistant__inline-link {
    background: #fff;
    border: 1px solid #cdded8;
    border-radius: 999px;
    color: #153b33;
    cursor: pointer;
    font-size: 13px;
    font-weight: 800;
    line-height: 1.2;
    padding: 9px 12px;
    text-decoration: none;
}

.tcu-support-assistant__field {
    color: #102333;
    display: grid;
    font-weight: 800;
    gap: 7px;
}

.tcu-support-assistant__field textarea {
    border: 1px solid #cdded8;
    border-radius: 14px;
    color: #102333;
    font: 500 14px/1.5 "Be Vietnam Pro", system-ui, sans-serif;
    max-width: 100%;
    min-height: 82px;
    padding: 12px;
    resize: vertical;
    width: 100%;
}

.tcu-support-assistant__actions,
.tcu-support-assistant__escalate {
    display: grid;
    gap: 8px;
    grid-template-columns: 1fr 1fr;
}

.tcu-support-assistant__primary,
.tcu-support-assistant__escalate button:first-child {
    background: #078767;
    border: 1px solid #078767;
    border-radius: 999px;
    color: #fff;
    cursor: pointer;
    font-size: 14px;
    font-weight: 900;
    min-height: 42px;
    padding: 10px 14px;
}

.tcu-support-assistant__results {
    display: grid;
    gap: 8px;
    margin-top: 10px;
}

.tcu-support-assistant__results a {
    background: #f7fbf9;
    border: 1px solid #d6e5df;
    border-radius: 12px;
    color: #102333;
    display: grid;
    gap: 4px;
    padding: 10px;
    text-decoration: none;
}

.tcu-support-assistant__results strong {
    font-size: 14px;
}

.tcu-support-assistant__results span {
    color: #078767;
    font-size: 12px;
    font-weight: 800;
}

.tcu-support-assistant__results small {
    color: #536879;
    font-size: 12px;
    line-height: 1.45;
}

.tcu-support-assistant__answer {
    background: #f7fbf9;
    border: 1px solid #d6e5df;
    border-radius: 14px;
    min-height: 48px;
    padding: 12px;
}

@media (max-width: 767px) {
    .tcu-support-assistant {
        bottom: calc(104px + env(safe-area-inset-bottom));
        right: 12px;
    }

    .tcu-support-assistant__launcher {
        min-height: 42px;
        padding: 0 14px;
    }

    .tcu-support-assistant__panel {
        bottom: 52px;
        right: -2px;
        width: calc(100vw - 24px);
    }

    .tcu-support-assistant__body {
        max-height: min(62vh, 560px);
    }
}

/* Phase 77.1 - keep support clear of mobile store CTAs and map UI. */
@media (max-width: 782px) {
    body:has(.tcu-store-mobile-sticky-cta) .tcu-support-assistant {
        bottom: calc(var(--tcu-phase77-bottom-nav-height, 78px) + var(--tcu-phase77-sticky-cta-height, 64px) + 14px + env(safe-area-inset-bottom));
        right: 12px;
    }

    body:has(.tcu-map-discovery-page) .tcu-support-assistant {
        bottom: calc(var(--tcu-phase77-bottom-nav-height, 78px) + 14px + env(safe-area-inset-bottom));
        right: 12px;
    }

    body:has(.tcu-store-mobile-sticky-cta) .tcu-support-assistant__launcher,
    body:has(.tcu-map-discovery-page) .tcu-support-assistant__launcher {
        border-radius: 999px;
        box-shadow: 0 10px 24px rgba(7, 135, 103, .24);
        min-height: 44px;
        padding: 0 14px;
    }

    body:has(.tcu-store-mobile-sticky-cta) .tcu-support-assistant__panel,
    body:has(.tcu-map-discovery-page) .tcu-support-assistant__panel {
        bottom: 54px;
        max-height: min(70dvh, 560px);
    }
}

@media (max-width: 430px) {
    body:has(.tcu-store-mobile-sticky-cta) .tcu-support-assistant__launcher,
    body:has(.tcu-map-discovery-page) .tcu-support-assistant__launcher {
        font-size: 0;
        gap: 0;
        height: 46px;
        min-height: 46px;
        padding: 0;
        width: 46px;
    }

    body:has(.tcu-store-mobile-sticky-cta) .tcu-support-assistant__launcher::before,
    body:has(.tcu-map-discovery-page) .tcu-support-assistant__launcher::before {
        font-size: 16px;
        height: 28px;
        width: 28px;
    }
}

/* Phase 77.6 - support launcher collision guard. CSS only, no runtime contract change. */
:root {
    --tcu-mobile-bottom-nav-height: 82px;
    --tcu-mobile-safe-bottom: env(safe-area-inset-bottom, 0px);
    --tcu-mobile-sticky-cta-height: 64px;
    --tcu-mobile-support-size: 52px;
    --tcu-mobile-support-bottom: calc(var(--tcu-mobile-bottom-nav-height) + var(--tcu-mobile-safe-bottom) + 16px);
    --tcu-z-support: 940;
    --tcu-z-modal: 13000;
}

.tcu-support-assistant,
.tcu-support-assistant * {
    font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
    letter-spacing: 0;
}

.tcu-support-assistant {
    z-index: var(--tcu-z-support);
}

.tcu-support-assistant__panel {
    z-index: var(--tcu-z-modal);
}

@media (max-width: 782px) {
    .tcu-support-assistant {
        bottom: var(--tcu-mobile-support-bottom) !important;
        right: 12px !important;
    }

    body:has(.tcu-store-mobile-sticky-cta) .tcu-support-assistant {
        bottom: calc(var(--tcu-mobile-bottom-nav-height) + var(--tcu-mobile-sticky-cta-height) + var(--tcu-mobile-safe-bottom) + 16px) !important;
    }

    body:has(.tcu-map-discovery-page) .tcu-support-assistant {
        bottom: calc(var(--tcu-mobile-bottom-nav-height) + var(--tcu-mobile-safe-bottom) + 14px) !important;
    }

    body:has([data-tcu-inquiry-dashboard]) .tcu-support-assistant,
    body:has(.tcu-support-page) .tcu-support-assistant {
        display: none !important;
    }

    .tcu-support-assistant__launcher {
        border-radius: 999px;
        box-shadow: 0 12px 28px rgba(7, 135, 103, .22);
        min-height: 46px;
        padding: 0 14px;
    }

    .tcu-support-assistant__panel {
        bottom: 58px !important;
        max-height: min(70dvh, 560px);
        width: min(420px, calc(100vw - 24px));
    }
}

@media (max-width: 430px) {
    .tcu-support-assistant__launcher {
        font-size: 0;
        gap: 0;
        height: var(--tcu-mobile-support-size);
        min-height: var(--tcu-mobile-support-size);
        padding: 0;
        width: var(--tcu-mobile-support-size);
    }

    .tcu-support-assistant__launcher::before {
        font-size: 17px;
        height: 30px;
        width: 30px;
    }
}

@media (max-width: 360px) {
    :root {
        --tcu-mobile-support-size: 48px;
    }

    .tcu-support-assistant {
        right: 10px !important;
    }
}

/* Phase 82 - replace fragile text glyph with a scoped SVG question icon. */
.tcu-support-assistant__launcher::before {
    background-color: rgba(255, 255, 255, .18);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='2.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M9.5 9a3 3 0 1 1 4.9 2.3c-1.1.8-1.9 1.4-1.9 2.7'/%3E%3Cpath d='M12 18h.01'/%3E%3C/svg%3E");
    background-position: center;
    background-repeat: no-repeat;
    background-size: 17px 17px;
    content: "";
    flex: 0 0 auto;
    font-size: 0;
    line-height: 1;
}

/* Phase 93.1 - keep support usable without covering primary mobile CTAs. */
.tcu-support-assistant,
.tcu-support-assistant__panel,
.tcu-support-assistant__body,
.tcu-support-assistant__composer {
    box-sizing: border-box;
    max-width: 100%;
    min-width: 0;
}

.tcu-support-assistant__launcher {
    white-space: nowrap;
}

@media (max-width: 782px) {
    .tcu-support-assistant {
        right: 12px !important;
    }

    body:has(.tcu-store-mobile-sticky-cta) .tcu-support-assistant {
        bottom: calc(var(--tcu-mobile-bottom-nav-height) + var(--tcu-mobile-sticky-cta-height) + var(--tcu-mobile-safe-bottom) + 18px) !important;
    }
}

/* Phase 93.2.4 - keep assistant panel width independent from the launcher. */
.tcu-support-assistant {
    --tcu-support-panel-gutter: 12px;
    --tcu-support-panel-width: min(420px, calc(100vw - (var(--tcu-support-panel-gutter) * 2)));
    max-width: none !important;
    width: auto !important;
}

.tcu-support-assistant__panel {
    max-width: var(--tcu-support-panel-width) !important;
    min-width: min(320px, var(--tcu-support-panel-width)) !important;
    right: 0 !important;
    width: var(--tcu-support-panel-width) !important;
}

.tcu-support-assistant__panel,
.tcu-support-assistant__panel * {
    min-width: 0;
    text-orientation: mixed !important;
    writing-mode: horizontal-tb !important;
    word-break: normal !important;
}

.tcu-support-assistant__head,
.tcu-support-assistant__body,
.tcu-support-assistant__field,
.tcu-support-assistant__answer,
.tcu-support-assistant__results,
.tcu-support-assistant__results a {
    max-width: 100%;
    overflow-wrap: break-word;
}

.tcu-support-assistant__topics {
    display: grid !important;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.tcu-support-assistant__topics button,
.tcu-support-assistant__ghost,
.tcu-support-assistant__primary,
.tcu-support-assistant__escalate button,
.tcu-support-assistant__inline-link {
    align-items: center;
    display: inline-flex;
    justify-content: center;
    max-width: 100%;
    min-width: 0;
    overflow-wrap: break-word;
    text-align: center;
    white-space: normal;
}

.tcu-support-assistant__actions,
.tcu-support-assistant__escalate {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.tcu-support-assistant__field textarea {
    max-height: 140px;
    min-width: 0;
    width: 100%;
}

@media (max-width: 782px) {
    .tcu-support-assistant {
        --tcu-support-panel-gutter: max(12px, env(safe-area-inset-right, 0px));
        max-width: none !important;
    }

    .tcu-support-assistant__panel {
        bottom: calc(var(--tcu-mobile-support-size) + 10px) !important;
        max-height: calc(100dvh - var(--tcu-mobile-bottom-nav-height) - var(--tcu-mobile-safe-bottom) - var(--tcu-mobile-support-size) - 28px) !important;
        max-width: var(--tcu-support-panel-width) !important;
        min-width: min(320px, var(--tcu-support-panel-width)) !important;
        width: var(--tcu-support-panel-width) !important;
    }

    .tcu-support-assistant__body {
        max-height: calc(100dvh - var(--tcu-mobile-bottom-nav-height) - var(--tcu-mobile-safe-bottom) - var(--tcu-mobile-support-size) - 170px);
    }
}

@media (max-width: 340px) {
    .tcu-support-assistant {
        --tcu-support-panel-gutter: 8px;
    }

    .tcu-support-assistant__panel {
        min-width: 0 !important;
    }

    .tcu-support-assistant__topics,
    .tcu-support-assistant__actions,
    .tcu-support-assistant__escalate {
        grid-template-columns: minmax(0, 1fr);
    }
}

/* Phase 93.4 - keep launcher above mobile bottom nav and make tiny screens icon-only. */
:root {
    --tcu-bottom-nav-height: var(--tcu-mobile-bottom-nav-height, 82px);
}

@media (max-width: 782px) {
    .tcu-support-assistant {
        bottom: calc(var(--tcu-bottom-nav-height, 82px) + 14px + env(safe-area-inset-bottom, 0px)) !important;
        right: 14px !important;
    }

    body:has(.tcu-store-mobile-sticky-cta) .tcu-support-assistant {
        bottom: calc(var(--tcu-bottom-nav-height, 82px) + var(--tcu-mobile-sticky-cta-height, 64px) + 14px + env(safe-area-inset-bottom, 0px)) !important;
    }

    .tcu-support-assistant__panel {
        bottom: calc(var(--tcu-mobile-support-size, 52px) + 10px) !important;
        max-height: calc(100dvh - var(--tcu-bottom-nav-height, 82px) - var(--tcu-mobile-support-size, 52px) - env(safe-area-inset-bottom, 0px) - 38px) !important;
        max-width: min(420px, calc(100vw - 28px)) !important;
        min-width: 0 !important;
        right: 0 !important;
        width: min(420px, calc(100vw - 28px)) !important;
    }
}

@media (max-width: 430px) {
    .tcu-support-assistant {
        --tcu-mobile-support-size: 48px;
    }

    .tcu-support-assistant__launcher {
        border-radius: 999px !important;
        font-size: 0 !important;
        gap: 0 !important;
        height: var(--tcu-mobile-support-size) !important;
        min-height: var(--tcu-mobile-support-size) !important;
        min-width: var(--tcu-mobile-support-size) !important;
        padding: 0 !important;
        width: var(--tcu-mobile-support-size) !important;
    }

    .tcu-support-assistant__launcher > span:not(.tcu-support-assistant__launcher-icon),
    .tcu-support-assistant__launcher > strong,
    .tcu-support-assistant__launcher > em {
        display: none !important;
    }
}

/* Phase 93.4.1 - real mobile collision guard for launcher and open panel. */
@media (hover: none) and (pointer: coarse), (max-width: 782px) {
    html.tcu-real-mobile-ui .tcu-support-assistant {
        bottom: calc(var(--tcu-bottom-nav-height, 82px) + 14px + env(safe-area-inset-bottom, 0px)) !important;
        right: 12px !important;
        transition: opacity .18s ease, transform .18s ease, visibility .18s ease !important;
        z-index: 760 !important;
    }

    html.tcu-real-mobile-ui body:has(.tcu-store-mobile-sticky-cta) .tcu-support-assistant {
        bottom: calc(var(--tcu-bottom-nav-height, 82px) + var(--tcu-mobile-sticky-cta-height, 64px) + 14px + env(safe-area-inset-bottom, 0px)) !important;
    }

    html.tcu-support-in-hero-zone .tcu-support-assistant:not(.is-open) {
        opacity: .18 !important;
        pointer-events: none !important;
        transform: translate3d(8px, 10px, 0) scale(.86) !important;
        visibility: hidden !important;
    }

    html.tcu-keyboard-open .tcu-support-assistant:not(.is-open) {
        opacity: 0 !important;
        pointer-events: none !important;
        transform: translate3d(8px, 20px, 0) scale(.82) !important;
        visibility: hidden !important;
    }

    html.tcu-keyboard-open .tcu-support-assistant.is-open {
        bottom: calc(10px + env(safe-area-inset-bottom, 0px)) !important;
    }

    html.tcu-real-mobile-ui .tcu-support-assistant__panel {
        bottom: calc(var(--tcu-mobile-support-size, 52px) + 10px) !important;
        max-height: calc(100dvh - var(--tcu-bottom-nav-height, 82px) - var(--tcu-mobile-support-size, 52px) - env(safe-area-inset-bottom, 0px) - 38px) !important;
        max-width: min(420px, calc(100vw - 24px)) !important;
        min-width: 0 !important;
        width: min(420px, calc(100vw - 24px)) !important;
    }

    html.tcu-keyboard-open .tcu-support-assistant__panel {
        bottom: 10px !important;
        max-height: calc(100dvh - 20px - env(safe-area-inset-bottom, 0px)) !important;
    }
}

/* Phase 93.4.2 - mobile auth pages use inline auth help links, not the floating launcher. */
@media (hover: none) and (pointer: coarse), (max-width: 782px) {
    body.tcu-auth-entry .tcu-support-assistant,
    html.tcu-auth-mobile-entry .tcu-support-assistant {
        display: none !important;
    }
}

/* Phase 93.4.3 - Media Hub owns the support launcher glyph.
   Keep the legacy pseudo fallback from stacking with uploaded SVG assets. */
.tcu-support-assistant__launcher.has-media-icon::before,
.tcu-support-assistant__launcher:has(.tcu-support-assistant__launcher-icon)::before {
    background-image: none !important;
    content: none !important;
    display: none !important;
}

.tcu-support-assistant__launcher-icon,
.tcu-support-assistant__launcher-icon.tcu-icon-asset,
.tcu-support-assistant__launcher-icon.tcu-icon-glyph {
    align-items: center !important;
    background: rgba(255, 255, 255, .18) !important;
    border-radius: 999px !important;
    box-sizing: border-box !important;
    color: #ffffff !important;
    display: inline-flex !important;
    flex: 0 0 24px !important;
    font-size: 14px !important;
    font-weight: 900 !important;
    height: 24px !important;
    justify-content: center !important;
    line-height: 1 !important;
    overflow: hidden !important;
    width: 24px !important;
}

.tcu-support-assistant__launcher-icon.tcu-icon-asset img,
.tcu-support-assistant__launcher-icon img {
    display: block !important;
    height: 17px !important;
    max-height: 17px !important;
    max-width: 17px !important;
    object-fit: contain !important;
    width: 17px !important;
}

@media (max-width: 430px) {
    .tcu-support-assistant__launcher.has-media-icon {
        align-items: center !important;
        justify-content: center !important;
    }

    .tcu-support-assistant__launcher-icon,
    .tcu-support-assistant__launcher-icon.tcu-icon-asset,
    .tcu-support-assistant__launcher-icon.tcu-icon-glyph {
        flex-basis: 28px !important;
        height: 28px !important;
        width: 28px !important;
    }

    .tcu-support-assistant__launcher-icon.tcu-icon-asset img,
    .tcu-support-assistant__launcher-icon img {
        height: 19px !important;
        max-height: 19px !important;
        max-width: 19px !important;
        width: 19px !important;
    }
}