* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial;
    background: #0b0e14;
    color: #e6e6e6;
}

.topbar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-bottom: 1px solid #1d2433;
    background: #0f1320;
}

.brand {
    font-weight: 700;
}

.meta {
    flex: 1;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.hint {
    opacity: .7;
    margin-right: 6px;
}

code {
    font-size: 12px;
    padding: 2px 6px;
    background: #111829;
    border: 1px solid #1d2433;
    border-radius: 6px;
}

.btn {
    background: #2a5bd7;
    color: white;
    border: 0;
    padding: 8px 12px;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 600;
}

.btn:hover {
    filter: brightness(1.08);
}

.btn.secondary {
    background: #15223d;
    border: 1px solid #1d2433;
}

.layout {
    display: grid;
    grid-template-columns: 310px 1fr;
    height: calc(100vh - 52px);
}

.tabs {
    border-right: 1px solid #1d2433;
    padding: 12px;
    background: #0c101a;
    overflow: auto;
    display: flex;
    flex-direction: column;
}

.tabs-title {
    font-weight: 700;
    margin-bottom: 10px;
    opacity: .9;
}

.tabs-footer {
    margin-top: 10px;
}

.tab {
    width: 100%;
    text-align: left;
    padding: 10px 10px;
    margin-bottom: 8px;
    border-radius: 10px;
    border: 1px solid #1d2433;
    background: #0f1320;
    color: #e6e6e6;
    cursor: pointer;
}

.tab.active {
    outline: 2px solid #2a5bd7;
}

.tab:hover {
    filter: brightness(1.08);
}

.panel {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.panel-header {
    padding: 10px 14px;
    border-bottom: 1px solid #1d2433;
    background: #0c101a;
}

.activeInfo {
    opacity: .9;
    font-size: 13px;
}

.messages {
    flex: 1;
    padding: 14px;
    overflow: auto;
}

.msg {
    border: 1px solid #1d2433;
    background: #0f1320;
    border-radius: 14px;
    padding: 10px 12px;
    margin-bottom: 10px;
}

.msg.user {
    border-left: 4px solid #2a5bd7;
}

.msg.assistant {
    border-left: 4px solid #21a179;
}

.msg.system {
    border-left: 4px solid #f5a623;
    opacity: .9;
}

.msg-label {
    font-weight: 700;
    font-size: 12px;
    opacity: .75;
    margin-bottom: 6px;
}

.msg-text {
    white-space: pre-wrap;
    line-height: 1.35;
}

.composer {
    display: flex;
    gap: 10px;
    padding: 12px;
    border-top: 1px solid #1d2433;
    background: #0c101a;
}

.composer input {
    flex: 1;
    padding: 10px 12px;
    border-radius: 12px;
    border: 1px solid #1d2433;
    background: #0f1320;
    color: #e6e6e6;
}

.debug {
    padding: 10px 14px;
    border-top: 1px solid #1d2433;
    background: #0c101a;
}

.debug pre {
    max-height: 200px;
    overflow: auto;
    background: #0f1320;
    padding: 10px;
    border: 1px solid #1d2433;
    border-radius: 12px;
}

.meta .row {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-bottom: 6px;
}

.meta select,
.meta input {
    padding: 8px 10px;
    border-radius: 10px;
    border: 1px solid #1d2433;
    background: #0f1320;
    color: #e6e6e6;
}

.meta input {
    width: 240px;
}