.ai-assistant-header-button {
    position: relative;
    gap: 6px;
}

.ai-assistant-header-button span {
    color: #93c5fd;
    font-size: 0.72rem;
    font-weight: 900;
    letter-spacing: 0.06em;
}

.docspace-ai-nav-button svg,
.ai-assistant-header-button svg {
    color: #60a5fa;
}

.ai-assistant-overlay {
    position: fixed;
    inset: 0;
    z-index: 4600;
    display: flex;
    justify-content: flex-end;
    background: rgba(3, 7, 18, 0.62);
    backdrop-filter: blur(12px);
    opacity: 1;
    transition: opacity 180ms ease, visibility 180ms ease;
}

.ai-assistant-overlay.is-hidden {
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
}

.ai-assistant-panel {
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    width: min(100%, 980px);
    height: 100vh;
    color: #e5edf8;
    background:
        radial-gradient(circle at top left, rgba(37, 99, 235, 0.22), transparent 30%),
        linear-gradient(160deg, #0b1220 0%, #111c2f 54%, #08111f 100%);
    border-left: 1px solid rgba(148, 163, 184, 0.28);
    box-shadow: -32px 0 70px rgba(0, 0, 0, 0.38);
    transform: translateX(0);
    transition: transform 220ms ease;
}

.ai-assistant-overlay.is-hidden .ai-assistant-panel {
    transform: translateX(24px);
}

.ai-assistant-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 22px 24px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.18);
    background: rgba(15, 23, 42, 0.72);
}

.ai-assistant-title-block,
.ai-assistant-top-actions,
.ai-composer-actions,
.ai-message-card footer {
    display: flex;
    align-items: center;
    gap: 12px;
}

.ai-assistant-mark {
    display: grid;
    flex: 0 0 auto;
    place-items: center;
    width: 48px;
    height: 48px;
    border: 1px solid rgba(96, 165, 250, 0.32);
    border-radius: 14px;
    background: linear-gradient(145deg, rgba(37, 99, 235, 0.26), rgba(14, 165, 233, 0.12));
    color: #60a5fa;
    box-shadow: 0 18px 45px rgba(37, 99, 235, 0.22);
}

.ai-assistant-title-block h2 {
    margin: 2px 0;
    color: #f8fafc;
    font-size: clamp(1.35rem, 2.4vw, 1.8rem);
    line-height: 1.05;
}

.ai-assistant-title-block p:not(.eyebrow) {
    margin: 0;
    color: #9fb0c8;
}

.ai-icon-text {
    gap: 8px;
    min-height: 42px;
}

.ai-assistant-body {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    min-height: 0;
}

.ai-history-view {
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    min-width: 0;
    padding: 18px;
    border-right: 1px solid rgba(148, 163, 184, 0.16);
    background: rgba(7, 13, 26, 0.48);
}

.ai-history-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}

.ai-history-heading strong {
    color: #f8fafc;
}

.ai-history-heading small,
.ai-history-item small,
.ai-usage-strip span,
.ai-character-counter {
    color: #9fb0c8;
}

.ai-history-list {
    display: grid;
    align-content: start;
    gap: 10px;
    min-height: 0;
    overflow: auto;
    padding-right: 4px;
}

.ai-history-item {
    display: grid;
    grid-template-columns: 28px minmax(0, 1fr) 30px;
    align-items: center;
    gap: 10px;
    width: 100%;
    min-height: 64px;
    padding: 10px;
    color: #dbeafe;
    text-align: left;
    border: 1px solid rgba(148, 163, 184, 0.18);
    border-radius: 12px;
    background: rgba(15, 23, 42, 0.62);
    cursor: pointer;
    transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.ai-history-item:hover,
.ai-history-item.is-active {
    transform: translateY(-1px);
    border-color: rgba(96, 165, 250, 0.52);
    background: rgba(30, 64, 175, 0.28);
}

.ai-history-item span,
.ai-history-item strong {
    min-width: 0;
}

.ai-history-item strong {
    display: block;
    overflow: hidden;
    color: #f8fafc;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ai-history-item em {
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    color: #94a3b8;
    border-radius: 10px;
    font-style: normal;
}

.ai-history-item em:hover {
    color: #fecaca;
    background: rgba(239, 68, 68, 0.14);
}

.ai-chat-shell {
    display: grid;
    grid-template-rows: auto auto minmax(0, 1fr) auto auto;
    min-width: 0;
    min-height: 0;
    padding: 18px;
}

.ai-usage-strip {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    min-height: 44px;
    padding: 10px 14px;
    border: 1px solid rgba(148, 163, 184, 0.16);
    border-radius: 12px;
    background: rgba(15, 23, 42, 0.62);
}

.ai-usage-strip strong {
    color: #bfdbfe;
    white-space: nowrap;
}

.ai-quick-prompts {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin: 14px 0;
}

.ai-quick-prompt {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 48px;
    padding: 10px 12px;
    color: #dbeafe;
    border: 1px solid rgba(96, 165, 250, 0.2);
    border-radius: 12px;
    background: rgba(30, 41, 59, 0.56);
    cursor: pointer;
    transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.ai-quick-prompt:hover {
    transform: translateY(-2px);
    border-color: rgba(96, 165, 250, 0.56);
    background: rgba(37, 99, 235, 0.18);
}

.ai-quick-prompt svg {
    flex: 0 0 auto;
    color: #60a5fa;
}

.ai-messages {
    display: flex;
    flex-direction: column;
    gap: 14px;
    min-height: 0;
    overflow: auto;
    padding: 6px 6px 18px;
}

.ai-message {
    display: grid;
    grid-template-columns: 38px minmax(0, 1fr);
    gap: 12px;
    align-items: start;
}

.ai-message-user {
    grid-template-columns: minmax(0, 1fr) 38px;
}

.ai-message-user .ai-message-avatar {
    grid-column: 2;
}

.ai-message-user .ai-message-card {
    grid-column: 1;
    grid-row: 1;
    background: linear-gradient(145deg, rgba(37, 99, 235, 0.42), rgba(14, 165, 233, 0.22));
}

.ai-message-avatar {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    color: #93c5fd;
    border: 1px solid rgba(96, 165, 250, 0.28);
    border-radius: 12px;
    background: rgba(37, 99, 235, 0.16);
}

.ai-message-card {
    min-width: 0;
    padding: 14px;
    border: 1px solid rgba(148, 163, 184, 0.16);
    border-radius: 14px;
    background: rgba(15, 23, 42, 0.72);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.14);
}

.ai-message-card header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 8px;
}

.ai-message-card strong {
    color: #f8fafc;
}

.ai-message-card small {
    color: #93c5fd;
    font-weight: 800;
}

.ai-message-text {
    color: #dbe6f7;
    line-height: 1.58;
    white-space: pre-wrap;
    word-break: break-word;
}

.ai-message-card footer {
    justify-content: flex-end;
    margin-top: 12px;
}

.ai-message-card footer .secondary-button {
    min-height: 34px;
    padding: 7px 10px;
    border-radius: 10px;
}

.ai-message-error .ai-message-card {
    border-color: rgba(248, 113, 113, 0.42);
    background: rgba(127, 29, 29, 0.24);
}

.ai-message-system .ai-message-card {
    border-color: rgba(250, 204, 21, 0.28);
    background: rgba(113, 63, 18, 0.2);
}

.ai-typing-indicator {
    display: flex;
    align-items: center;
    gap: 6px;
    min-height: 32px;
    color: #9fb0c8;
    font-size: 0.9rem;
}

.ai-typing-indicator span {
    width: 7px;
    height: 7px;
    border-radius: 999px;
    background: #60a5fa;
    animation: aiTypingPulse 900ms ease-in-out infinite alternate;
}

.ai-typing-indicator span:nth-child(2) {
    animation-delay: 120ms;
}

.ai-typing-indicator span:nth-child(3) {
    animation-delay: 240ms;
}

@keyframes aiTypingPulse {
    from {
        opacity: 0.28;
        transform: translateY(2px);
    }
    to {
        opacity: 1;
        transform: translateY(-2px);
    }
}

.ai-composer {
    display: grid;
    gap: 10px;
    padding: 12px;
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 16px;
    background: rgba(7, 13, 26, 0.72);
}

.ai-composer textarea {
    width: 100%;
    min-height: 74px;
    max-height: 220px;
    resize: none;
    color: #f8fafc;
    border: 0;
    outline: none;
    background: transparent;
    font: inherit;
    line-height: 1.5;
}

.ai-composer textarea::placeholder {
    color: #7f8da4;
}

.ai-composer-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.ai-composer-footer span {
    color: #94a3b8;
    font-size: 0.82rem;
}

.ai-composer button[type="submit"] {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 42px;
    padding: 0 18px;
    border-radius: 12px;
    background: linear-gradient(135deg, #2563eb, #0ea5e9);
    box-shadow: 0 16px 36px rgba(37, 99, 235, 0.28);
}

.ai-empty-state {
    margin: 16px 0;
    color: #9fb0c8;
    text-align: center;
}

.ai-admin-summary {
    border-color: rgba(96, 165, 250, 0.28);
}

.ai-admin-summary strong {
    color: #bfdbfe;
}

body.system-light-theme .ai-assistant-overlay {
    background: rgba(15, 23, 42, 0.24);
}

body.system-light-theme .ai-assistant-panel {
    color: #1d2433;
    background:
        radial-gradient(circle at top left, rgba(37, 99, 235, 0.10), transparent 30%),
        linear-gradient(160deg, #f8fbff 0%, #eef4ff 54%, #ffffff 100%);
    border-left-color: rgba(15, 23, 42, 0.12);
}

body.system-light-theme .ai-assistant-topbar,
body.system-light-theme .ai-history-view,
body.system-light-theme .ai-usage-strip,
body.system-light-theme .ai-history-item,
body.system-light-theme .ai-message-card,
body.system-light-theme .ai-composer,
body.system-light-theme .ai-quick-prompt {
    background: rgba(255, 255, 255, 0.82);
    border-color: rgba(148, 163, 184, 0.28);
}

body.system-light-theme .ai-assistant-title-block h2,
body.system-light-theme .ai-history-heading strong,
body.system-light-theme .ai-history-item strong,
body.system-light-theme .ai-message-card strong,
body.system-light-theme .ai-message-text,
body.system-light-theme .ai-composer textarea {
    color: #101828;
}

body.system-light-theme .ai-assistant-title-block p:not(.eyebrow),
body.system-light-theme .ai-history-heading small,
body.system-light-theme .ai-history-item small,
body.system-light-theme .ai-usage-strip span,
body.system-light-theme .ai-composer-footer span {
    color: #667085;
}

body.system-light-theme .ai-message-user .ai-message-card {
    background: linear-gradient(145deg, rgba(37, 99, 235, 0.14), rgba(14, 165, 233, 0.10));
}

body.liquid-glass-theme .ai-assistant-panel {
    backdrop-filter: blur(26px) saturate(1.24);
}

body.liquid-glass-theme .ai-message-card,
body.liquid-glass-theme .ai-composer,
body.liquid-glass-theme .ai-history-view,
body.liquid-glass-theme .ai-usage-strip,
body.liquid-glass-theme .ai-quick-prompt {
    border-color: rgba(255, 255, 255, 0.22);
    background: rgba(255, 255, 255, 0.10);
}

@media (max-width: 920px) {
    .ai-assistant-panel {
        width: 100%;
    }

    .ai-assistant-body {
        grid-template-columns: minmax(0, 1fr);
    }

    .ai-history-view {
        position: absolute;
        top: 93px;
        bottom: 0;
        left: 0;
        z-index: 2;
        width: min(84vw, 320px);
        transform: translateX(-105%);
        transition: transform 180ms ease;
    }

    .ai-assistant-overlay.ai-history-open .ai-history-view {
        transform: translateX(0);
    }
}

@media (max-width: 640px) {
    .ai-assistant-topbar {
        align-items: flex-start;
        padding: 16px;
    }

    .ai-assistant-title-block {
        align-items: flex-start;
    }

    .ai-assistant-mark {
        width: 42px;
        height: 42px;
    }

    .ai-assistant-top-actions {
        flex-wrap: wrap;
        justify-content: flex-end;
    }

    .ai-chat-shell {
        padding: 12px;
    }

    .ai-quick-prompts {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .ai-usage-strip,
    .ai-composer-footer {
        align-items: flex-start;
        flex-direction: column;
    }

    .ai-composer-actions {
        width: 100%;
    }

    .ai-composer-actions button {
        flex: 1;
        justify-content: center;
    }

    .ai-message,
    .ai-message-user {
        grid-template-columns: 32px minmax(0, 1fr);
    }

    .ai-message-user .ai-message-avatar {
        grid-column: 1;
    }

    .ai-message-user .ai-message-card {
        grid-column: 2;
    }

    .ai-message-avatar {
        width: 32px;
        height: 32px;
        border-radius: 10px;
    }
}

/* === DOCSPACE AI UI FIXES === */
.ai-typing-indicator.is-hidden,
#aiStopButton.is-hidden,
#aiStopButton[hidden],
#aiTypingIndicator[hidden] {
    display: none !important;
}

.ai-composer-actions .secondary-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 42px;
    border-radius: 12px;
}

.ai-message-error .ai-message-card {
    max-width: 760px;
    border-color: rgba(248, 113, 113, 0.5);
    background: rgba(92, 26, 46, 0.72);
}

.ai-message-error .ai-message-text {
    color: #f8d7df;
}

.ai-floating-button {
    display: none;
    position: fixed;
    right: 190px;
    bottom: 22px;
    z-index: 82;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 46px;
    padding: 0 16px;
    border: 1px solid rgba(96, 165, 250, 0.46);
    border-radius: 14px;
    color: #ffffff;
    background: linear-gradient(135deg, #2563eb, #0ea5e9);
    box-shadow: 0 16px 34px rgba(37, 99, 235, 0.30);
    font: inherit;
    font-weight: 900;
    cursor: pointer;
}


body.document-home-open .ai-floating-button {
    display: inline-flex;
}

.ai-floating-button svg {
    width: 18px;
    height: 18px;
}

@media (max-width: 900px) {
    .ai-floating-button {
        right: 14px;
        bottom: 154px;
        width: 52px;
        padding: 0;
        border-radius: 16px;
    }

    .ai-floating-button span {
        display: none;
    }
}

@media (max-width: 640px) {
    .ai-assistant-panel {
        height: 100dvh;
    }

    .ai-assistant-topbar {
        display: grid;
        grid-template-columns: 1fr;
    }

    .ai-assistant-top-actions {
        justify-content: stretch;
    }

    .ai-assistant-top-actions .secondary-button {
        flex: 1;
        justify-content: center;
    }

    .ai-quick-prompts {
        grid-template-columns: 1fr;
    }

    .ai-messages {
        padding-right: 0;
    }
}