:root {
  --bg: #0d1117;
  --bg-card: #161b22;
  --bg-input: #1c2128;
  --border: #30363d;
  --text-main: #e6edf3;
  --text-muted: #7d8590;
  --primary: #4493f8;
  --radius: 10px;
  --sev-low: #38a169;
  --sev-mod: #d4a847;
  --sev-high: #e05252;
}

[data-theme="light"] {
  --bg: #f6f8fa;
  --bg-card: #ffffff;
  --bg-input: #f0f2f5;
  --border: #d0d7de;
  --text-main: #1f2328;
  --text-muted: #656d76;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { background: var(--bg); color: var(--text-main); font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; font-size: 15px; line-height: 1.6; padding: 1.5rem 1rem 3rem; }
.tool-wrapper { max-width: 680px; margin: 0 auto; }

.tool-header { text-align: center; margin-bottom: 1.5rem; }
.tool-header__badge { display: inline-flex; align-items: center; gap: 0.4rem; background: rgba(68,147,248,0.1); border: 1px solid rgba(68,147,248,0.3); color: var(--primary); font-size: 0.75rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; padding: 0.3rem 0.8rem; border-radius: 20px; margin-bottom: 1rem; }
.tool-header h1 { font-size: 1.6rem; font-weight: 800; color: var(--text-main); margin-bottom: 0.5rem; }
.tool-header p { color: var(--text-muted); max-width: 520px; margin: 0 auto; font-size: 0.9rem; }

.info-note { background: rgba(68,147,248,0.07); border: 1px solid rgba(68,147,248,0.2); border-radius: var(--radius); padding: 0.85rem 1.1rem; font-size: 0.85rem; color: var(--text-muted); margin-bottom: 1.25rem; }

/* Medication list */
.med-list { display: flex; flex-direction: column; gap: 1rem; margin-bottom: 1.5rem; }
.med-category { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.med-category-title { font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.07em; color: var(--text-muted); padding: 0.75rem 1.25rem; background: var(--bg-input); border-bottom: 1px solid var(--border); }
.med-items { display: grid; grid-template-columns: 1fr 1fr; gap: 0; }
@media (max-width: 480px) { .med-items { grid-template-columns: 1fr; } }
.med-item { display: flex; align-items: center; gap: 0.55rem; padding: 0.65rem 1.25rem; border-bottom: 1px solid var(--border); border-right: 1px solid var(--border); cursor: pointer; transition: background 0.12s; }
.med-item:hover { background: rgba(68,147,248,0.05); }
.med-item:has(input:checked) { background: rgba(68,147,248,0.09); }
.med-item input { accent-color: var(--primary); }
.med-item-label { font-size: 0.85rem; color: var(--text-main); cursor: pointer; }
.med-item-label small { display: block; font-size: 0.75rem; color: var(--text-muted); font-weight: 400; }

/* Severity badge */
.sev-badge { display: inline-block; font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; padding: 0.15rem 0.5rem; border-radius: 4px; }
.sev-badge.low  { background: rgba(56,161,105,0.15); color: var(--sev-low); }
.sev-badge.mod  { background: rgba(212,168,71,0.15);  color: var(--sev-mod); }
.sev-badge.high { background: rgba(224,82,82,0.15);   color: var(--sev-high); }

/* Results */
.result-header-box { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.5rem; margin-bottom: 0.75rem; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 0.5rem; }
.result-count { font-size: 0.88rem; color: var(--text-muted); }
.result-count strong { color: var(--text-main); }
.clear-btn { background: none; border: 1px solid var(--border); border-radius: 6px; color: var(--text-muted); font-size: 0.8rem; padding: 0.3rem 0.75rem; cursor: pointer; }
.clear-btn:hover { border-color: var(--primary); color: var(--primary); }

.interaction-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; margin-bottom: 0.75rem; }
.interaction-head { display: flex; align-items: center; justify-content: space-between; padding: 0.9rem 1.25rem; border-bottom: 1px solid var(--border); }
.interaction-name { font-size: 0.95rem; font-weight: 700; color: var(--text-main); }
.interaction-body { padding: 0.9rem 1.25rem; display: flex; flex-direction: column; gap: 0.75rem; }
.effect-row { display: flex; gap: 0.75rem; align-items: flex-start; }
.effect-type { font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); min-width: 60px; margin-top: 0.1rem; }
.effect-text { font-size: 0.84rem; color: var(--text-muted); line-height: 1.55; }
.wait-note { font-size: 0.82rem; color: var(--sev-mod); background: rgba(212,168,71,0.08); border: 1px solid rgba(212,168,71,0.2); border-radius: 6px; padding: 0.5rem 0.85rem; }

.no-interactions { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.25rem 1.5rem; text-align: center; }
.no-interactions p { font-size: 0.88rem; color: var(--text-muted); }

.disclaimer { background: var(--bg-card); border: 1px solid var(--border); border-top: 3px solid var(--border); border-radius: var(--radius); padding: 1rem 1.25rem; font-size: 0.8rem; color: var(--text-muted); margin-top: 1.5rem; }
.disclaimer strong { color: var(--text-main); }