/* Dark Streamlit-like theme with mobile responsiveness */
:root{--bg:#0b1220;--card:#0f1724;--accent:#1f77b4;--muted:#94a3b8;--text:#e6eef8}
*{box-sizing:border-box}
body{font-family:Inter,Segoe UI,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);margin:0;padding:14px}
.stApp{max-width:1200px;margin:0 auto}
.stHeader{background:linear-gradient(135deg,rgba(31,119,180,0.15) 0%,rgba(79,39,131,0.1) 100%);padding:28px 24px;border-radius:12px;margin-bottom:24px;border:1px solid rgba(255,255,255,0.05)}
.stBrand{margin-bottom:18px}
.stBrand h1{margin:0 0 8px 0;font-size:2.2rem;font-weight:800;color:var(--text);line-height:1.2}
.stBrand .subtitle{margin:0;font-size:1.1rem;color:var(--accent);font-weight:600;letter-spacing:0.5px}
.stIntro{margin-top:18px;padding-top:18px;border-top:1px solid rgba(255,255,255,0.05)}
.stIntro p{margin:12px 0;font-size:0.95rem;line-height:1.6;color:var(--muted)}
.stIntro strong{color:var(--text);font-weight:600}
.container{background:var(--card);padding:18px;border-radius:10px;box-shadow:0 8px 30px rgba(2,6,23,0.6)}
h1{color:var(--text);margin-top:0;margin-bottom:8px;font-size:1.8rem}
h2{color:var(--text);margin-top:18px;font-size:1.4rem}
/* Tables */
table{width:100%;border-collapse:separate;border-spacing:0;margin:14px 0;background:transparent}
thead th{background:transparent;color:var(--muted);font-weight:600;padding:10px 8px;border-bottom:1px solid rgba(255,255,255,0.04);text-align:left;font-size:0.9rem}
th,td{padding:10px 8px;border-bottom:1px solid rgba(255,255,255,0.03);color:var(--text);font-size:0.9rem}
pre{background:#07101a;color:#dbeafe;padding:10px;border-radius:8px;overflow:auto;font-size:0.85rem}
img{max-width:100%;height:auto;border-radius:8px;border:1px solid rgba(255,255,255,0.03)}
.stFooter{margin-top:20px;color:var(--muted);font-size:0.9rem;text-align:center}

/* P&L styling similar to Streamlit monthly breakdown */
.pnl-pos{background-color:#093a09;color:#b7f5c6;padding:6px 10px;border-radius:8px;display:inline-block;min-width:64px;text-align:center;font-weight:600;font-size:0.85rem}
.pnl-neg{background-color:#3a0a0a;color:#ffd6d6;padding:6px 10px;border-radius:8px;display:inline-block;min-width:64px;text-align:center;font-weight:600;font-size:0.85rem}
.pnl-zero{background-color:#1f2937;color:#c7cdd6;padding:6px 10px;border-radius:8px;display:inline-block;min-width:64px;text-align:center;font-weight:600;font-size:0.85rem}
.pnl-na{background-color:#0f1724;color:#94a3b8;padding:6px 10px;border-radius:8px;display:inline-block;min-width:64px;text-align:center;font-size:0.85rem}

/* Make tables responsive on mobile */
.table-responsive{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;margin:14px 0}
.table-responsive table{margin:0;min-width:600px}

/* Expander (details/summary) styling */
details{background:transparent;border:1px solid rgba(255,255,255,0.03);border-radius:10px;margin:10px 0;padding:6px}
summary{cursor:pointer;padding:12px 16px;font-weight:700;color:var(--text);list-style:none;font-size:1rem}
details[open] summary{background:rgba(255,255,255,0.02);border-radius:8px}
details > *{padding:12px 16px}

/* Metrics grid similar to Streamlit */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:10px 0}
.metric{background:linear-gradient(180deg, rgba(255,255,255,0.01), rgba(255,255,255,0.01));padding:14px;border-radius:8px}
.metric .value{font-size:1.6rem;font-weight:700}
.metric .label{color:var(--muted);font-size:0.9rem}

/* Buttons */
.btn{display:inline-block;padding:10px 14px;border-radius:8px;background:transparent;border:1px solid rgba(255,255,255,0.06);color:var(--text);cursor:pointer;margin-right:10px;font-size:0.9rem}

/* Responsive adjustments */
@media (max-width:1100px){
    .metrics{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:800px){
    body{padding:10px}
    .container{padding:14px}
    .stHeader{padding:12px}
    .stBrand{font-size:1.2rem}
    h1{font-size:1.5rem}
    h2{font-size:1.2rem}
    .metrics{grid-template-columns:repeat(2,1fr);gap:10px}
    th,td{padding:8px 6px;font-size:0.8rem}
    .pnl-pos,.pnl-neg,.pnl-zero,.pnl-na{padding:4px 8px;font-size:0.75rem;min-width:50px}
    .metric .value{font-size:1.3rem}
    .metric .label{font-size:0.8rem}
    summary{font-size:0.95rem;padding:10px 12px}
    details > *{padding:10px 12px}
}
@media (max-width:480px){
    body{padding:8px}
    .container{padding:10px}
    .stHeader{padding:10px}
    .stBrand{font-size:1.1rem}
    h1{font-size:1.3rem}
    h2{font-size:1.1rem}
    .metrics{grid-template-columns:1fr}
    th,td{padding:6px 4px;font-size:0.75rem}
    .pnl-pos,.pnl-neg,.pnl-zero,.pnl-na{padding:3px 6px;font-size:0.7rem;min-width:45px}
    .metric .value{font-size:1.2rem}
    .metric .label{font-size:0.75rem}
    .table-responsive table{min-width:500px}
    summary{font-size:0.9rem;padding:8px 10px}
    details > *{padding:8px 10px}
}