:root {
    color-scheme: light dark;
    font-family: Inter, Segoe UI, Roboto, Arial, sans-serif;
}

body {
    margin: 0;
    background: #0f172a;
    color: #e2e8f0;
}

.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 24px;
    display: grid;
    gap: 16px;
}

h1, h2 {
    margin: 0 0 12px 0;
}

.card {
    background: #111827;
    border: 1px solid #1f2937;
    border-radius: 12px;
    padding: 14px;
}

.controls {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 12px;
}

label {
    display: grid;
    gap: 6px;
    font-size: 14px;
}

input,
textarea,
button {
    border-radius: 8px;
    border: 1px solid #334155;
    background: #0b1220;
    color: #e2e8f0;
    padding: 10px;
}

button {
    cursor: pointer;
    background: #1d4ed8;
    border: none;
}

button:hover {
    background: #2563eb;
}

.row {
    display: grid;
    grid-template-columns: 1fr auto auto auto;
    gap: 8px;
}

.status {
    font-size: 13px;
    min-height: 18px;
    color: #93c5fd;
}

.grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.chat {
    min-height: 280px;
    max-height: 460px;
    overflow: auto;
    display: grid;
    gap: 10px;
}

.message {
    border-radius: 8px;
    padding: 10px;
    white-space: pre-wrap;
}

.message.user {
    background: #1e293b;
}

.message.assistant {
    background: #172554;
}

.timeline {
    min-height: 280px;
    max-height: 460px;
    overflow: auto;
    margin: 12px 0 0 0;
    white-space: pre-wrap;
}

@media (max-width: 900px) {
    .controls,
    .grid,
    .row {
        grid-template-columns: 1fr;
    }
}