.ai-chat-page {
    min-height: 70vh;
}

.ai-chat .cwf-chat__header {
    gap: 0.75rem;
}

.ai-chat .ai-chat-picker {
    position: relative;
    margin-inline-start: auto;
}

.ai-chat .ai-chat-picker__trigger {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    max-width: 16rem;
    border: 1px solid var(--color-border, #d8dee6);
    background: var(--color-surface, #fff);
    color: inherit;
    border-radius: 999px;
    padding: 0.35rem 0.75rem;
    font-size: 0.82rem;
    line-height: 1.3;
}

.ai-chat .ai-chat-picker__trigger:hover,
.ai-chat .ai-chat-picker__trigger[aria-expanded="true"] {
    border-color: var(--color-primary, #2563eb);
}

.ai-chat .ai-chat-picker__menu {
    position: absolute;
    inset-inline-end: 0;
    top: calc(100% + 0.4rem);
    z-index: 20;
    min-width: 16.5rem;
    margin: 0;
    padding: 0.35rem;
    list-style: none;
    background: var(--color-surface, #fff);
    border: 1px solid var(--color-border, #d8dee6);
    border-radius: 0.85rem;
    box-shadow: 0 10px 30px rgb(15 23 42 / 12%);
}

.ai-chat .ai-chat-picker__option {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.15rem;
    border: 0;
    background: transparent;
    color: inherit;
    border-radius: 0.65rem;
    padding: 0.55rem 0.7rem;
    text-align: start;
}

.ai-chat .ai-chat-picker__option:hover,
.ai-chat .ai-chat-picker__option--selected {
    background: rgb(37 99 235 / 8%);
}

.ai-chat .ai-chat-picker__option-meta {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.75rem;
    color: var(--color-muted, #64748b);
}

.ai-chat .ai-chat-picker__lock {
    font-size: 0.85rem;
}

.ai-chat .cwf-chat__greeting {
    padding: 4rem 1rem 2rem;
}

.ai-chat .cwf-chat__greeting p {
    font-size: 1.65rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.ai-chat .ai-chat-thinking {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    min-height: 1.75rem;
    padding: 0.2rem 0;
}

.ai-chat .ai-chat-thinking__label {
    font-size: 0.95rem;
    font-weight: 500;
    background: linear-gradient(90deg, #9ca3af 0%, #111827 45%, #9ca3af 90%);
    background-size: 220% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: ai-chat-shimmer 1.6s ease-in-out infinite;
}

.ai-chat .ai-chat-thinking__dots {
    display: inline-flex;
    align-items: center;
    gap: 0.22rem;
}

.ai-chat .ai-chat-thinking__dots span {
    width: 0.32rem;
    height: 0.32rem;
    border-radius: 50%;
    background: #9ca3af;
    animation: ai-chat-dot 1.1s ease-in-out infinite;
}

.ai-chat .ai-chat-thinking__dots span:nth-child(2) {
    animation-delay: 0.16s;
}

.ai-chat .ai-chat-thinking__dots span:nth-child(3) {
    animation-delay: 0.32s;
}

.ai-chat .ai-chat-stream-host--pending {
    height: 0;
    margin: 0;
    padding: 0;
    overflow: hidden;
    visibility: hidden;
    pointer-events: none;
}

.ai-chat .cwf-md--streaming::after {
    content: "";
    display: inline-block;
    width: 2px;
    height: 1.05em;
    margin-inline-start: 0.2rem;
    background: currentColor;
    vertical-align: -0.12em;
    animation: cwf-caret-blink 1s steps(1) infinite;
}

@keyframes ai-chat-shimmer {
    0% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes ai-chat-dot {
    0%, 80%, 100% { opacity: 0.25; transform: translateY(0); }
    40% { opacity: 1; transform: translateY(-2px); }
}

.ai-chat .ai-chat-quota {
    margin: 0 1rem 0.75rem;
    border-radius: 0.9rem;
    padding: 0.65rem 1rem;
    border: 1px solid #c5d4f0;
    background: #eef4ff;
    font-size: 0.9rem;
}

.ai-chat .ai-chat-upgrade,
.ai-chat .ai-chat-alert {
    margin: 0 1rem 0.75rem;
    border-radius: 0.9rem;
    padding: 0.85rem 1rem;
}

.ai-chat .ai-chat-upgrade {
    border: 1px solid #f0c36a;
    background: #fff8e8;
}

.ai-chat .ai-chat-alert {
    border: 1px solid #f1c0c0;
    background: #fff1f1;
}

.ai-chat .ai-chat-upgrade__title,
.ai-chat .ai-chat-alert__title {
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.ai-chat .ai-chat-upgrade__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.65rem;
}

.ai-chat .cwf-composer__send--stop {
    background: #dc2626;
    color: #fff;
}

.ai-chat .cwf-composer__send--stop:hover {
    background: #b91c1c;
}

.ai-chat .ai-chat-guest {
    margin: 0 1rem 0.85rem;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
}

/* Full-screen workspace: hide SEO + site footer like PDF tools */
html:has(.ai-chat--workspace) {
    height: 100%;
}

body:has(.ai-chat--workspace) {
    display: flex;
    flex-direction: column;
    height: 100dvh;
    max-height: 100dvh;
    overflow: hidden;
}

body:has(.ai-chat--workspace) > header {
    flex: 0 0 auto;
}

body:has(.ai-chat--workspace) header .navbar {
    margin-bottom: 0 !important;
}

body:has(.ai-chat--workspace) > .container {
    max-width: none;
    width: 100%;
    padding-inline: 0;
    flex: 1 1 auto;
    min-height: 0;
    display: flex;
    flex-direction: column;
}

body:has(.ai-chat--workspace) main.pb-3 {
    padding: 0 !important;
    flex: 1 1 auto;
    min-height: 0;
    display: flex;
    overflow: hidden;
}

body:has(.ai-chat--workspace) .ai-chat-page {
    flex: 1 1 auto;
    min-height: 0;
    display: flex;
    flex-direction: column;
    height: 100%;
}

body:has(.ai-chat--workspace) .ai-chat-page .ut-seo,
body:has(.ai-chat--workspace) .site-footer,
body:has(.ai-chat--workspace) .footer,
body:has(.ai-chat--workspace) .pwa-install {
    display: none !important;
}

.ai-chat.ai-chat--workspace,
.ai-chat.ai-chat--workspace .cwf-shell,
.ai-chat.ai-chat--workspace .cwf-shell__main,
.ai-chat.ai-chat--workspace .cwf-chat {
    height: 100%;
    min-height: 0;
    max-height: none;
    border: 0;
    border-radius: 0;
    box-shadow: none;
}

.ai-chat.ai-chat--workspace .cwf-shell {
    --cwf-shell-height: 100%;
    overflow: hidden;
}

.ai-chat.ai-chat--workspace .cwf-sidebar,
.ai-chat.ai-chat--workspace .cwf-shell__main {
    border-radius: 0;
}

.ai-chat.ai-chat--workspace .cwf-chat__body {
    background: var(--surface, #fff);
}

.ai-chat.ai-chat--workspace .cwf-chat__footer {
    border-top: 0;
    padding-bottom: 1.25rem;
}

@media (max-width: 767.98px) {
    .ai-chat .ai-chat-picker__trigger {
        max-width: 11rem;
    }

    .ai-chat .cwf-chat__greeting p {
        font-size: 1.35rem;
    }
}