:root {
    --bg: #0f1117;
    --panel: #171a23;
    --panel-2: #1e222d;
    --border: #2a2f3c;
    --text: #e6e8ee;
    --muted: #8b93a7;
    --accent: #6ea8fe;
    --green: #4ade80;
    --red: #f87171;
    --amber: #fbbf24;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    height: 100%;
    background: var(--bg);
    color: var(--text);
    font: 15px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 22px;
    border-bottom: 1px solid var(--border);
    background: var(--panel);
}

header h1 { font-size: 17px; margin: 0; font-weight: 650; }
header h1 .sub { color: var(--muted); font-weight: 400; font-size: 13px; margin-left: 8px; }

#header-right { display: flex; align-items: center; gap: 16px; }

#run-btn {
    background: var(--accent); color: #fff; border: none; border-radius: 8px;
    padding: 7px 14px; font-size: 13px; font-weight: 600; cursor: pointer;
}
#run-btn:hover { filter: brightness(1.08); }

#run-status {
    background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px;
    padding: 8px 10px; font-size: 12.5px; margin-bottom: 12px; color: var(--text);
}
#run-status.error { border-color: var(--red); color: var(--red); }
#run-status a { color: var(--accent); }

dialog#run-dialog {
    border: 1px solid var(--border); border-radius: 12px; background: var(--panel);
    color: var(--text); padding: 22px; max-width: 380px; width: 90%;
}
dialog#run-dialog::backdrop { background: rgba(0,0,0,.5); }
dialog#run-dialog h3 { margin: 0 0 6px; font-size: 15px; }
.field-label { display: block; font-size: 12px; color: var(--muted); margin: 12px 0 4px; }
.small { font-size: 11.5px; margin-top: 4px; }
dialog#run-dialog textarea {
    width: 100%; background: var(--panel-2); color: var(--text); border: 1px solid var(--border);
    border-radius: 8px; padding: 8px; font: 12px/1.4 ui-monospace, monospace; resize: vertical;
}
.persona-grid { display: flex; flex-direction: column; gap: 6px; margin: 12px 0 4px; padding-left: 14px; }
.inline { display: flex; align-items: center; gap: 8px; font-size: 13.5px; cursor: pointer; }
.actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 18px; }
.actions button { border-radius: 8px; padding: 7px 14px; font-size: 13px; cursor: pointer; border: 1px solid var(--border); }
.actions .primary { background: var(--accent); color: #fff; border: none; font-weight: 600; }
.actions .secondary { background: var(--panel-2); color: var(--text); }

#user { font-size: 13px; color: var(--muted); }
#user strong { color: var(--text); }
.signout { color: var(--accent); cursor: pointer; margin-left: 10px; }
.signout:hover { text-decoration: underline; }

main {
    display: grid;
    grid-template-columns: 300px 1fr;
    height: calc(100vh - 55px);
}

#sidebar {
    border-right: 1px solid var(--border);
    padding: 16px;
    overflow-y: auto;
    background: var(--panel);
}

#sidebar h2 { font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 0 0 10px; }

.muted { color: var(--muted); font-size: 13px; }

#toolbar { margin: 8px 0 12px; }
.toolbar-btn {
    background: var(--panel-2); color: var(--text); border: 1px solid var(--border);
    border-radius: 8px; padding: 6px 10px; font-size: 13px; cursor: pointer;
}
.toolbar-btn:hover { border-color: var(--accent); }

#run-list { list-style: none; margin: 0; padding: 0; }
#run-list li {
    display: flex; align-items: center; gap: 8px;
    padding: 9px 10px; border-radius: 8px; cursor: pointer; margin-bottom: 4px;
    border: 1px solid transparent;
}
#run-list li:hover { background: var(--panel-2); }
#run-list li.active { background: var(--panel-2); border-color: var(--accent); }
#run-list li .label { flex: 1; font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#run-list li .size { color: var(--muted); font-size: 11px; }
.icon-btn {
    background: none; border: none; color: var(--muted); cursor: pointer; font-size: 13px; padding: 2px 4px;
}
.icon-btn:hover { color: var(--text); }
.icon-btn.danger:hover { color: var(--red); }

#viewer { padding: 26px 34px; overflow-y: auto; }

/* Rendered markdown */
#viewer h1 { font-size: 22px; margin: 0 0 14px; }
#viewer h2 { font-size: 16px; margin: 26px 0 10px; padding-bottom: 6px; border-bottom: 1px solid var(--border); }
#viewer h3 { font-size: 14px; margin: 18px 0 6px; color: var(--accent); }
#viewer table { border-collapse: collapse; margin: 10px 0; font-size: 13.5px; }
#viewer th, #viewer td { border: 1px solid var(--border); padding: 6px 12px; text-align: left; }
#viewer th { background: var(--panel-2); }
#viewer code { background: var(--panel-2); padding: 1px 6px; border-radius: 5px; font-size: 12.5px; }
#viewer strong { color: #fff; }
#viewer ul { padding-left: 20px; }
#viewer li { margin: 3px 0; }

@media (prefers-color-scheme: light) {
    :root {
        --bg: #f7f8fa; --panel: #fff; --panel-2: #f0f2f6; --border: #e2e5ec;
        --text: #1a1d26; --muted: #6b7280; --accent: #2563eb;
    }
}