* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #e8e4de;
    --bg-glass: rgba(255, 255, 255, 0.45);
    --bg-glass-strong: rgba(255, 255, 255, 0.6);
    --bg-glass-subtle: rgba(255, 255, 255, 0.25);
    --border-glass: rgba(255, 255, 255, 0.7);
    --border-soft: rgba(0, 0, 0, 0.06);
    --shadow-glass: 0 4px 24px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04), inset 0 1px 0 rgba(255, 255, 255, 0.6);
    --shadow-glass-hover: 0 8px 32px rgba(0, 0, 0, 0.1), 0 2px 4px rgba(0, 0, 0, 0.06), inset 0 1px 0 rgba(255, 255, 255, 0.7);
    --shadow-inset: inset 0 2px 6px rgba(0, 0, 0, 0.04);
    --text-primary: #1a1a2e;
    --text-secondary: #6b7280;
    --accent: #7c6ceb;
    --accent-light: rgba(124, 108, 235, 0.12);
    --accent-text: #5b4cc4;
    --green: #34d399;
    --green-light: rgba(52, 211, 153, 0.12);
    --red: #f87171;
    --red-light: rgba(248, 113, 113, 0.12);
    --amber: #fbbf24;
    --pink: #f0abfc;
    --radius: 16px;
    --radius-pill: 50px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
}

.hidden { display: none !important; }

.screen {
    height: 100vh;
    width: 100vw;
}

/* =================== Login =================== */
#login-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(160deg, #e8e4de 0%, #d5d0c8 40%, #ddd8d0 100%);
}

.login-container {
    text-align: center;
    padding: 3rem;
    background: var(--bg-glass-strong);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    border-radius: 24px;
    border: 1px solid var(--border-glass);
    box-shadow: var(--shadow-glass), 0 20px 60px rgba(0, 0, 0, 0.08);
    min-width: 380px;
}

.logo h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-text);
    margin-bottom: 0.25rem;
}

.logo p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 2rem;
}

.btn-google {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    width: 100%;
    padding: 14px 24px;
    background: var(--bg-glass-strong);
    backdrop-filter: blur(20px);
    color: var(--text-primary);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-pill);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: var(--shadow-glass);
}

.btn-google:hover {
    box-shadow: var(--shadow-glass-hover);
    transform: translateY(-1px);
}

.domain-note {
    margin-top: 1rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.error {
    margin-top: 1rem;
    padding: 10px 14px;
    background: var(--red-light);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(248, 113, 113, 0.3);
    border-radius: 12px;
    color: #dc2626;
    font-size: 0.85rem;
}

/* =================== Chat Layout =================== */
#chat-screen {
    display: flex;
    background: linear-gradient(160deg, #e8e4de 0%, #ddd8d0 50%, #e2ddd5 100%);
}

.sidebar {
    width: 240px;
    background: var(--bg-glass);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    border-right: 1px solid var(--border-glass);
    display: flex;
    flex-direction: column;
    padding: 1.25rem;
    height: 100vh;
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.03);
}

.sidebar-header h2 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--accent-text);
}

.user-email {
    font-size: 0.7rem;
    color: var(--text-secondary);
    display: block;
    margin-top: 2px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.client-selector {
    margin-top: 1rem;
    display: flex;
    gap: 4px;
}

.client-selector select {
    flex: 1;
    padding: 10px 12px;
    background: var(--bg-glass-subtle);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-pill);
    color: var(--text-primary);
    font-size: 0.8rem;
    outline: none;
    cursor: pointer;
    appearance: none;
    box-shadow: var(--shadow-inset);
    transition: all 0.2s;
}

.client-selector select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-light);
}

.btn-add-client {
    width: 38px;
    height: 38px;
    background: var(--bg-glass-subtle);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-glass);
    border-radius: 50%;
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    box-shadow: var(--shadow-glass);
}

.btn-add-client:hover {
    color: var(--accent-text);
    box-shadow: var(--shadow-glass-hover);
    transform: translateY(-1px);
}

.agent-list {
    margin-top: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 3px;
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

.agent-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-pill);
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.25s;
    text-align: left;
}

.agent-btn:hover {
    background: var(--bg-glass-subtle);
    border-color: var(--border-glass);
    color: var(--text-primary);
    box-shadow: var(--shadow-glass);
}

.agent-btn.active {
    background: var(--accent-light);
    border-color: rgba(124, 108, 235, 0.25);
    color: var(--accent-text);
    box-shadow: var(--shadow-glass), inset 0 0 20px rgba(124, 108, 235, 0.05);
}

.agent-icon { font-size: 1.1rem; }

.btn-logout {
    padding: 10px;
    background: var(--bg-glass-subtle);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-pill);
    color: var(--text-secondary);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.25s;
    box-shadow: var(--shadow-glass);
}

.btn-logout:hover {
    color: #dc2626;
    border-color: rgba(248, 113, 113, 0.3);
    background: var(--red-light);
}

.sidebar-section {
    margin-top: auto;
    margin-bottom: 8px;
}

.btn-knowledge {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-glass-subtle);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-pill);
    color: var(--text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.25s;
    box-shadow: var(--shadow-glass);
}

.btn-knowledge:hover {
    color: var(--accent-text);
    box-shadow: var(--shadow-glass-hover);
    transform: translateY(-1px);
}

/* =================== Knowledge Panel =================== */
.knowledge-panel {
    width: 320px;
    background: var(--bg-glass);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    border-right: 1px solid var(--border-glass);
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow-y: auto;
}

.knowledge-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-soft);
}

.knowledge-header h3 {
    font-size: 1rem;
    font-weight: 600;
}

.btn-close {
    background: var(--bg-glass-subtle);
    border: 1px solid var(--border-glass);
    border-radius: 50%;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-close:hover { color: var(--text-primary); }

.knowledge-upload {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-soft);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.knowledge-input {
    padding: 10px 14px;
    background: var(--bg-glass-subtle);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-pill);
    color: var(--text-primary);
    font-size: 0.85rem;
    outline: none;
    box-shadow: var(--shadow-inset);
    transition: all 0.2s;
}

.knowledge-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-light);
}

.btn-upload {
    padding: 10px 16px;
    background: linear-gradient(135deg, rgba(124,108,235,0.2), rgba(124,108,235,0.1));
    backdrop-filter: blur(10px);
    border: 1px solid rgba(124, 108, 235, 0.3);
    border-radius: var(--radius-pill);
    color: var(--accent-text);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s;
    box-shadow: var(--shadow-glass);
}

.btn-upload:hover {
    box-shadow: var(--shadow-glass-hover);
    transform: translateY(-1px);
}

.knowledge-list {
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.knowledge-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    background: var(--bg-glass-subtle);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius);
    box-shadow: var(--shadow-glass);
}

.knowledge-item-info { flex: 1; min-width: 0; }

.knowledge-item-title {
    font-size: 0.85rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.knowledge-item-meta {
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

.btn-delete-doc {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
    font-size: 0.8rem;
}

.btn-delete-doc:hover { color: var(--red); }

/* =================== Chat Area =================== */
.chat-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.chat-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-soft);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-glass-subtle);
    backdrop-filter: blur(20px);
}

.chat-header-info {
    display: flex;
    flex-direction: column;
}

.chat-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.chat-header span {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.btn-export-csv {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--bg-glass-subtle);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-pill);
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.25s;
    box-shadow: var(--shadow-glass);
}

.btn-export-csv:hover {
    color: var(--accent-text);
    box-shadow: var(--shadow-glass-hover);
    transform: translateY(-1px);
}

.messages {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* =================== Messages =================== */
.message {
    max-width: 75%;
    padding: 14px 18px;
    border-radius: 20px;
    font-size: 0.92rem;
    line-height: 1.65;
    overflow-wrap: break-word;
    word-break: break-word;
    min-width: 0;
}

.message-content {
    overflow-wrap: break-word;
    word-break: break-word;
    overflow-x: auto;
}

.message.user { white-space: pre-wrap; }

.message.user {
    align-self: flex-end;
    background: linear-gradient(135deg, rgba(124,108,235,0.35), rgba(124,108,235,0.2));
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(124, 108, 235, 0.3);
    color: var(--text-primary);
    border-bottom-right-radius: 6px;
    box-shadow: var(--shadow-glass);
}

.message.assistant {
    align-self: flex-start;
    background: var(--bg-glass-strong);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid var(--border-glass);
    border-bottom-left-radius: 6px;
    box-shadow: var(--shadow-glass);
}

.message.assistant .agent-tag {
    display: inline-block;
    font-size: 0.68rem;
    color: var(--accent-text);
    margin-bottom: 6px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Markdown content */
.message-content h1, .message-content h2, .message-content h3 {
    margin: 0.6em 0 0.3em;
    line-height: 1.3;
}
.message-content h1 { font-size: 1.2em; }
.message-content h2 { font-size: 1.1em; }
.message-content h3 { font-size: 1em; }
.message-content p { margin: 0.4em 0; }

.message-content ul, .message-content ol {
    margin: 0.4em 0;
    padding-left: 1.5em;
}

.message-content li { margin: 0.2em 0; }

.message-content table {
    border-collapse: collapse;
    margin: 0.6em 0;
    width: 100%;
    font-size: 0.85em;
    border-radius: 8px;
    overflow: hidden;
}

.message-content th, .message-content td {
    border: 1px solid var(--border-soft);
    padding: 8px 12px;
    text-align: left;
}

.message-content th {
    background: var(--accent-light);
    font-weight: 600;
    color: var(--accent-text);
}

.message-content code {
    background: rgba(0, 0, 0, 0.05);
    padding: 2px 7px;
    border-radius: 6px;
    font-size: 0.85em;
    font-family: 'SF Mono', 'Fira Code', monospace;
}

.message-content pre {
    background: rgba(26, 26, 46, 0.9);
    color: #e2e8f0;
    padding: 14px;
    border-radius: 12px;
    overflow-x: auto;
    margin: 0.5em 0;
    box-shadow: var(--shadow-glass);
}

.message-content pre code {
    background: none;
    padding: 0;
    color: inherit;
}

.message-content strong { color: var(--accent-text); }

.message-content hr {
    border: none;
    border-top: 1px solid var(--border-soft);
    margin: 0.8em 0;
}

.message-content blockquote {
    border-left: 3px solid var(--accent);
    padding-left: 12px;
    margin: 0.5em 0;
    color: var(--text-secondary);
}

.message-content img {
    max-width: 100%;
    border-radius: 12px;
    margin: 0.5em 0;
    cursor: pointer;
    transition: transform 0.2s;
    box-shadow: var(--shadow-glass);
}

.message-content img:hover {
    transform: scale(1.02);
}

.image-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(20px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    cursor: pointer;
}

.image-overlay img {
    max-width: 90vw;
    max-height: 90vh;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

/* =================== Typing Indicator =================== */
.typing-indicator {
    align-self: flex-start;
    padding: 14px 18px;
    background: var(--bg-glass-strong);
    backdrop-filter: blur(30px);
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    border-bottom-left-radius: 6px;
    color: var(--text-secondary);
    font-size: 0.85rem;
    box-shadow: var(--shadow-glass);
}

.typing-indicator span {
    animation: blink 1.4s infinite;
}

.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes blink {
    0%, 60%, 100% { opacity: 0.3; }
    30% { opacity: 1; }
}

/* =================== Input =================== */
.input-area {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-soft);
    display: flex;
    gap: 10px;
    align-items: flex-end;
    background: var(--bg-glass-subtle);
    backdrop-filter: blur(20px);
}

#message-input {
    flex: 1;
    padding: 14px 20px;
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-pill);
    color: var(--text-primary);
    font-size: 0.92rem;
    font-family: inherit;
    resize: none;
    max-height: 150px;
    outline: none;
    transition: all 0.25s;
    box-shadow: var(--shadow-inset);
}

#message-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-light), var(--shadow-inset);
}

#message-input::placeholder {
    color: var(--text-secondary);
}

#send-btn {
    padding: 14px;
    background: linear-gradient(135deg, rgba(124,108,235,0.3), rgba(124,108,235,0.15));
    backdrop-filter: blur(10px);
    border: 1px solid rgba(124, 108, 235, 0.3);
    border-radius: 50%;
    color: var(--accent-text);
    cursor: pointer;
    transition: all 0.25s;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-glass);
}

#send-btn:hover {
    box-shadow: var(--shadow-glass-hover);
    transform: translateY(-1px);
}

#send-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
}

/* =================== Scrollbar =================== */
.messages::-webkit-scrollbar { width: 6px; }
.messages::-webkit-scrollbar-track { background: transparent; }
.messages::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.1);
    border-radius: 3px;
}
.messages::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.2);
}

/* =================== Client Modal =================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.25);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-glass {
    background: var(--bg-glass-strong);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    border: 1px solid var(--border-glass);
    border-radius: 24px;
    box-shadow: var(--shadow-glass), 0 20px 60px rgba(0, 0, 0, 0.1);
    width: 480px;
    max-width: 92vw;
    max-height: 90vh;
    overflow-y: auto;
    padding: 28px;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.modal-header h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--accent-text);
}

.modal-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.form-group label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group select {
    padding: 11px 16px;
    background: var(--bg-glass-subtle);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-pill);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: inherit;
    outline: none;
    box-shadow: var(--shadow-inset);
    transition: all 0.2s;
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-light), var(--shadow-inset);
}

.form-group input::placeholder {
    color: var(--text-secondary);
    opacity: 0.7;
}

.form-group select {
    appearance: none;
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 36px;
}

.form-file-input {
    padding: 10px 16px !important;
    border-radius: 16px !important;
    font-size: 0.82rem !important;
    cursor: pointer;
}

.form-file-input::file-selector-button {
    padding: 6px 14px;
    margin-right: 10px;
    background: linear-gradient(135deg, rgba(124,108,235,0.2), rgba(124,108,235,0.08));
    border: 1px solid rgba(124, 108, 235, 0.3);
    border-radius: 50px;
    color: var(--accent-text);
    font-size: 0.78rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s;
}

.form-file-input::file-selector-button:hover {
    background: linear-gradient(135deg, rgba(124,108,235,0.3), rgba(124,108,235,0.15));
}

.form-hint {
    font-size: 0.72rem;
    color: var(--text-secondary);
    opacity: 0.7;
    padding-left: 4px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.form-divider {
    height: 1px;
    background: var(--border-soft);
    margin: 4px 0;
}

.form-section-title {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-actions {
    display: flex;
    gap: 10px;
    margin-top: 6px;
}

.btn-cancel {
    flex: 1;
    padding: 12px;
    background: var(--bg-glass-subtle);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-pill);
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.25s;
    box-shadow: var(--shadow-glass);
}

.btn-cancel:hover {
    color: var(--text-primary);
    box-shadow: var(--shadow-glass-hover);
}

.btn-submit {
    flex: 1;
    padding: 12px;
    background: linear-gradient(135deg, rgba(124,108,235,0.25), rgba(124,108,235,0.12));
    backdrop-filter: blur(10px);
    border: 1px solid rgba(124, 108, 235, 0.35);
    border-radius: var(--radius-pill);
    color: var(--accent-text);
    font-size: 0.88rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.25s;
    box-shadow: var(--shadow-glass);
}

.btn-submit:hover {
    box-shadow: var(--shadow-glass-hover);
    transform: translateY(-1px);
}

.btn-submit:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* =================== Mobile =================== */
@media (max-width: 768px) {
    .sidebar { width: 60px; padding: 0.75rem; }
    .sidebar-header h2 { font-size: 0; }
    .sidebar-header h2::first-letter { font-size: 1.3rem; }
    .user-email { display: none; }
    .agent-btn { padding: 10px; justify-content: center; border-radius: 50%; width: 40px; height: 40px; }
    .agent-btn span:not(.agent-icon) { display: none; }
    .btn-logout { font-size: 0; padding: 10px; }
    .btn-logout::before { content: '\21a9'; font-size: 1rem; }
    .message { max-width: 90%; }
    .login-container { min-width: auto; margin: 1rem; }
    .btn-knowledge span:not(svg) { display: none; }
}