#ineedtea-chai { --chai-olive: #626d31; --chai-ink: #292d21; --chai-muted: #555b48; --chai-paper: #fff; position: fixed; right: 24px; bottom: max(24px, env(safe-area-inset-bottom)); z-index: 99990; font: 14px/1.55 Inter, Arial, sans-serif; letter-spacing: normal; color: var(--chai-ink); }
#ineedtea-chai *, #ineedtea-chai *::before, #ineedtea-chai *::after { box-sizing: border-box; }
#ineedtea-chai [hidden] { display: none !important; }
#ineedtea-chai button, #ineedtea-chai textarea { font: inherit; text-transform: none; letter-spacing: normal; margin: 0; float: none; }
#ineedtea-chai button { cursor: pointer; min-height: 44px; appearance: none; border: 0; box-shadow: none; }
#ineedtea-chai button:disabled { opacity: .55; cursor: wait; }
#ineedtea-chai p, #ineedtea-chai h2 { margin: 0; }
#ineedtea-chai a { color: #4e5727; text-decoration: underline; text-underline-offset: 3px; }
#ineedtea-chai :focus-visible { outline: 2px solid #4e5727; outline-offset: 3px; }
#ineedtea-chai ::selection { color: #fff; background: #4e5727; }
#ineedtea-chai .chai-launch { display: flex; align-items: center; justify-content: center; gap: 10px; height: 56px; padding: 0 18px; border-radius: 16px; background: var(--chai-olive); color: #fff; box-shadow: 0 8px 24px #292d2129; font-weight: 600; }
#ineedtea-chai .chai-launch:hover, #ineedtea-chai .chai-send:hover { background: #4e5727; }
#ineedtea-chai .chai-launch:focus-visible { outline-offset: 5px; }
#ineedtea-chai .chai-invite { position: absolute; right: 0; bottom: 72px; width: 266px; padding: 15px 42px 15px 16px; border-radius: 12px; background: var(--chai-paper); box-shadow: 0 8px 28px #292d2126; }
#ineedtea-chai .chai-invite-open { display: flex; flex-direction: column; align-items: flex-start; gap: 2px; padding: 0; background: transparent; color: var(--chai-ink); text-align: left; }
#ineedtea-chai .chai-invite-open span { color: var(--chai-muted); font-size: 13px; }
#ineedtea-chai .chai-icon { display: flex; align-items: center; justify-content: center; padding: 0; width: 44px; height: 44px; color: inherit; background: transparent; border-radius: 10px; }
#ineedtea-chai .chai-invite-close { position: absolute; top: 7px; right: 3px; font-size: 24px; }
#ineedtea-chai .chai-icon:hover { background: #eef0e7; color: var(--chai-ink); }
#ineedtea-chai #chai-panel { position: absolute; right: 0; bottom: 72px; display: flex; flex-direction: column; width: 400px; height: min(630px, calc(100dvh - 116px)); overflow: hidden; border-radius: 16px; background: var(--chai-paper); box-shadow: 0 14px 48px #292d2138; }
#ineedtea-chai .chai-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-shrink: 0; padding: 14px 14px 14px 20px; color: #fff; background: var(--chai-olive); }
#ineedtea-chai .chai-header h2 { font-size: 20px; font-weight: 650; line-height: 1.25; color: inherit; }
#ineedtea-chai .chai-header p { margin-top: 4px; font-size: 12px; color: #fff; }
#ineedtea-chai .chai-header button:focus-visible { outline-color: #fff; }
#ineedtea-chai .chai-log { flex: 1; min-height: 0; overflow-y: auto; overscroll-behavior: contain; padding: 20px 16px; scrollbar-width: thin; scrollbar-color: #9ca581 #f5f6f1; }
#ineedtea-chai .chai-message { margin-bottom: 16px; padding: 12px 14px; border-radius: 12px; background: #f2f4ed; overflow-wrap: anywhere; }
#ineedtea-chai .chai-message:last-child { margin-bottom: 0; }
#ineedtea-chai .chai-user { margin-left: 34px; color: #fff; background: #4e5727; }
#ineedtea-chai .chai-product { display: flex; gap: 10px; margin-top: 15px; padding-top: 15px; border-top: 1px solid #d6dcc9; }
#ineedtea-chai .chai-product img { flex: 0 0 56px; width: 56px; height: 56px; border-radius: 8px; object-fit: cover; }
#ineedtea-chai .chai-product-title { font-weight: 650; text-decoration: none; }
#ineedtea-chai .chai-price { margin-top: 3px; font-weight: 600; font-variant-numeric: tabular-nums; }
#ineedtea-chai .chai-caffeine { margin-top: 6px; font-size: 12px; color: var(--chai-muted); }
#ineedtea-chai blockquote { padding: 0; margin: 8px 0; border: 0; font: inherit; font-size: 13px; color: var(--chai-muted); }
#ineedtea-chai .chai-source { display: inline-flex; align-items: center; min-height: 32px; font-size: 13px; }
#ineedtea-chai .chai-suggestions { flex-shrink: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; padding: 0 16px 12px; }
#ineedtea-chai .chai-suggestions button { padding: 8px 11px; border: 1px solid #c9d0b9; border-radius: 10px; background: #fff; color: #4e5727; font-size: 12px; }
#ineedtea-chai .chai-suggestions button:hover { background: #f2f4ed; }
#ineedtea-chai .chai-status { color: var(--chai-muted); padding: 0 16px; font-size: 12px; }
#ineedtea-chai .chai-status:not(:empty) { padding-bottom: 10px; }
#ineedtea-chai .chai-form { display: flex; flex-shrink: 0; align-items: flex-end; gap: 8px; margin: 0 16px; padding: 8px; border: 1px solid #899174; border-radius: 12px; background: #fff; }
#ineedtea-chai textarea { flex: 1; width: 100%; min-width: 0; height: 96px; min-height: 96px; max-height: 160px; font-size: 16px; line-height: 1.5; overflow-y: auto; padding: 4px; border: 0; resize: none; color: var(--chai-ink); background: #fff; caret-color: #4e5727; box-shadow: none; }
#ineedtea-chai textarea::placeholder { color: #555b48; opacity: 1; }
#ineedtea-chai .chai-send { flex: 0 0 44px; height: 44px; padding: 0; display: flex; align-items: center; justify-content: center; border-radius: 10px; color: #fff; background: var(--chai-olive); }
#ineedtea-chai .chai-footer { flex-shrink: 0; padding: 10px 16px 12px; font-size: 11px; line-height: 1.45; color: var(--chai-muted); }
#ineedtea-chai .chai-footer > div { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
#ineedtea-chai .chai-reset { padding: 0; background: transparent; color: #4e5727; text-decoration: underline; text-underline-offset: 3px; font-size: 11px; }
#ineedtea-chai .chai-honey, #ineedtea-chai .chai-sr { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
@media (max-width: 640px) {
    #ineedtea-chai { right: 16px; bottom: max(20px, env(safe-area-inset-bottom)); }
    #ineedtea-chai .chai-launch { width: 56px; padding: 0; }
    #ineedtea-chai .chai-launch > span, #ineedtea-chai .chai-invite { display: none; }
    #ineedtea-chai #chai-panel { position: fixed; right: 16px; width: min(400px, calc(100% - 32px)); height: min(630px, calc(100% - 108px)); bottom: max(92px, calc(env(safe-area-inset-bottom) + 72px)); }
    #ineedtea-chai textarea { font-size: 16px; }
    #ineedtea-chai .chai-log { padding: 14px 12px; }
    #ineedtea-chai .chai-header { padding-left: 16px; }
}
@media (prefers-reduced-motion: no-preference) {
    #ineedtea-chai #chai-panel:not([hidden]) { animation: chai-open .18s cubic-bezier(.16,1,.3,1); }
    @keyframes chai-open { from { opacity: .5; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
}

@media (max-width: 360px) { #ineedtea-chai textarea { max-height: 240px; } }
@media (max-height: 560px) {
    #ineedtea-chai textarea { height: 72px; min-height: 72px; max-height: 96px; }
    #ineedtea-chai .chai-suggestions { max-height: 96px; overflow-y: auto; }
}

#ineedtea-chai .chai-evidence { margin-top: 6px; font-size: 12px; color: var(--chai-muted); }
#ineedtea-chai .chai-evidence summary { cursor: pointer; min-height: 32px; padding: 6px 0; }

#ineedtea-chai .chai-status:not(:empty) { display: flex; flex-shrink: 0; align-items: center; gap: 8px; }
#ineedtea-chai .chai-status:not(:empty)::before { content: ''; width: 14px; height: 14px; border: 2px solid #d6dcc9; border-top-color: var(--chai-olive); border-radius: 50%; }
@media (prefers-reduced-motion: no-preference) {
    #ineedtea-chai .chai-status:not(:empty)::before { animation: chai-thinking .8s linear infinite; }
    @keyframes chai-thinking { to { transform: rotate(360deg); } }
}

/* Greeting and suggestions share the scroll area; composer/footer keep their space. */
#ineedtea-chai .chai-log .chai-suggestions { margin-top: 12px; padding: 0; }
@media (max-width: 640px) {
    #ineedtea-chai #chai-panel { height: min(630px, calc(var(--chai-viewport-height,100dvh) - 32px)); bottom: calc(max(16px, env(safe-area-inset-bottom)) + var(--chai-viewport-bottom,0px)); }
    #ineedtea-chai.chai-open .chai-launch { visibility: hidden; pointer-events: none; }
    #ineedtea-chai .chai-header { padding: 12px; }
    #ineedtea-chai .chai-log { padding: 12px; }
    #ineedtea-chai .chai-message { padding: 10px 12px; margin-bottom: 12px; }
    #ineedtea-chai .chai-form { margin-inline: 12px; padding: 6px; }
    #ineedtea-chai textarea { height: 64px; min-height: 64px; max-height: 128px; }
    #ineedtea-chai .chai-footer { padding: 8px 12px; }
    #ineedtea-chai.chai-compact .chai-header { padding-block: 8px; }
    #ineedtea-chai.chai-compact .chai-header h2 { font-size: 18px; }
    #ineedtea-chai.chai-compact textarea { height: 48px; min-height: 48px; max-height: 96px; }
}