:root { color-scheme: light dark; --bg:#0b0b10; --fg:#eaeaf2; --muted:#9aa0a6; --card:#15151d; --border:#2a2a34; --primary:#6aa0ff; --ok:#34d399; --warn:#f59e0b; --danger:#ef4444 }
@media (prefers-color-scheme: light){ :root{ --bg:#fff; --fg:#1a1a1f; --muted:#57606a; --card:#f6f8fa; --border:#e6e8eb } }
*{ box-sizing:border-box }
body{ margin:0; background:var(--bg); color:var(--fg); font:16px/1.5 system-ui, -apple-system, Segoe UI, Roboto, sans-serif }
.container{ max-width:1100px; margin:0 auto; padding:24px }
.subtitle{ color:var(--muted) }
.grid{ display:grid; grid-template-columns: 1fr 1fr; gap:16px }
.panel{ background:var(--card); border:1px solid var(--border); border-radius:12px; padding:16px }
.h2{ margin:0 0 10px 0; font-size:1.15rem }
.h3{ margin:12px 0 8px 0; font-size:1rem }
.notice{ background:color-mix(in srgb, var(--primary) 12%, transparent); border:1px solid var(--border); padding:12px; border-radius:10px; margin-bottom:12px }
.row{ display:grid; grid-template-columns: repeat(auto-fit, minmax(200px,1fr)); gap:12px; align-items:center }
.group{ display:flex; flex-direction:column; gap:6px }
label{ font-weight:600 }
input, select{ border:1px solid var(--border); background:transparent; color:var(--fg); padding:10px 12px; border-radius:8px }
.btn{ border:1px solid var(--border); background:transparent; color:var(--fg); padding:10px 14px; border-radius:8px; cursor:pointer }
.btn.primary{ background:var(--primary); color:#fff; border-color:transparent }
.status{ min-height:1.2em; color:var(--muted); margin-top:8px }
.result{ display:flex; flex-direction:column; gap:10px }
.risk{ display:inline-block; padding:6px 10px; border-radius:999px; font-weight:700; border:1px solid var(--border); width:max-content }
.risk.low{ background:color-mix(in srgb, var(--ok) 20%, transparent) }
.risk.vlow{ background:color-mix(in srgb, var(--ok) 12%, transparent) }
.risk.med{ background:color-mix(in srgb, var(--warn) 18%, transparent) }
.risk.high{ background:color-mix(in srgb, var(--danger) 18%, transparent) }
.plan{ list-style:disc; padding-left:20px; margin:0 }
.note{ color:var(--muted); font-size:.9rem }
@media (max-width: 980px){ .grid{ grid-template-columns: 1fr } }

/* Evidence section with Google Scholar links */
.evidence-intro {
    color: var(--muted);
    font-size: 0.95rem;
    margin: 0 0 16px 0;
    line-height: 1.6;
}

.evidence-links {
    margin: 16px 0;
}

.evidence-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 12px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s ease;
}

.evidence-btn:hover {
    background: color-mix(in srgb, var(--primary) 85%, black);
    transform: translateY(-1px);
}

.evidence-btn svg {
    margin-left: 4px;
}

.evidence-suggestions {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.suggestions-title {
    font-weight: 600;
    margin: 0 0 12px 0;
    font-size: 0.95rem;
}

.suggestions-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.suggestions-list li {
    padding: 0;
}

.suggestions-list a {
    color: var(--primary);
    text-decoration: none;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    padding: 8px 12px;
    border-radius: 6px;
    transition: background 0.2s ease;
}

.suggestions-list a:hover {
    background: color-mix(in srgb, var(--primary) 10%, transparent);
    text-decoration: underline;
}

.suggestions-list a::before {
    content: "→";
    margin-right: 8px;
    color: var(--muted);
}

.theme-toggle {
    position: absolute;
    top: 16px;
    right: 16px;
    background: transparent;
    border: 2px solid var(--border);
    color: var(--fg);
    padding: 8px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    background: var(--primary);
    color: white;
    transform: scale(1.1);
}

/* Dark theme overrides */
[data-theme="dark"] {
    --bg:#0b0b10;
    --fg:#eaeaf2;
    --muted:#9aa0a6;
    --card:#15151d;
    --border:#2a2a34;
    --primary:#6aa0ff;
}

[data-theme="light"] {
    --bg:#fff;
    --fg:#1a1a1f;
    --muted:#57606a;
    --card:#f6f8fa;
    --border:#e6e8eb;
}

header {
    position: relative;
}