:root {
    --bg: #07090f;
    --panel: rgba(255, 255, 255, 0.04);
    --line: rgba(255, 255, 255, 0.08);
    --text: rgba(255, 255, 255, 0.9);
    --muted: rgba(255, 255, 255, 0.6);
    --accent: #5ee7ff;
    --accent2: #ff4d7d;
    --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
    --sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: radial-gradient(1200px 600px at 20% 10%, rgba(94, 231, 255, 0.12), transparent 60%),
        radial-gradient(900px 500px at 80% 20%, rgba(255, 77, 125, 0.10), transparent 55%),
        var(--bg);
    color: var(--text);
    font-family: var(--sans);
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 18px;
    border-bottom: 1px solid var(--line);
    background: rgba(0, 0, 0, 0.25);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
}

.brand {
    font-family: var(--mono);
    letter-spacing: 0.12em;
    font-weight: 700;
}

.status {
    display: flex;
    gap: 10px;
    align-items: center;
    font-family: var(--mono);
    color: var(--muted);
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 18px rgba(94, 231, 255, 0.6);
}

.grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 16px;
    padding: 16px;
    max-width: 1200px;
    margin: 0 auto;
}

.terminal,
.viewer {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 16px;
    overflow: hidden;
    min-height: 70vh;
}

.term-header,
.viewer-header {
    padding: 12px 14px;
    border-bottom: 1px solid var(--line);
    font-family: var(--mono);
    color: var(--muted);
    background: rgba(0, 0, 0, 0.2);
}

.term-out {
    padding: 14px;
    font-family: var(--mono);
    font-size: 14px;
    line-height: 1.5;
    white-space: pre-wrap;
}

.term-form {
    display: flex;
    gap: 10px;
    align-items: center;
    padding: 12px 14px;
    border-top: 1px solid var(--line);
    font-family: var(--mono);
}

.prompt {
    color: var(--accent);
}

.term-in {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text);
    font-family: var(--mono);
    font-size: 14px;
}

.hint {
    padding: 10px 14px 14px;
    color: var(--muted);
    font-size: 13px;
}

.viewer-body {
    padding: 16px;
}

.viewer-body code {
    font-family: var(--mono);
    color: var(--accent);
}

.big {
    font-size: 18px;
    margin-top: 0;
}

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

    .terminal,
    .viewer {
        min-height: auto;
    }
}