/* B9 study + tool pages. Loaded after site.css; only adds what those pages need. */
.findings { padding-left: 1.2rem; }
.findings li { margin: 0 0 .5rem; }
.study-fig { margin: 1.5rem 0; }
.study-fig h2 { margin-bottom: .5rem; }
.study-chart { width: 100%; max-width: 440px; height: auto; display: block; font-size: 13px; }
.study-chart .bar { fill: var(--accent); }
.study-chart .rng { stroke: var(--ink); stroke-width: 1.5; opacity: .55; }
.study-chart .grid { stroke: var(--line); stroke-width: 1; }
.study-chart .lbl, .study-chart .val { fill: var(--ink); }
.study-chart .tick { fill: var(--muted); font-size: 12px; }
.study-chart .hit { fill: transparent; }
.study-chart .row:hover .hit { fill: var(--panel); fill-opacity: .6; }
.study-chart .row:hover .bar { opacity: .85; }
.study-fig figcaption { color: var(--muted); font-size: .85rem; margin-top: .5rem; }
.study-metro { margin: .75rem 0; }
.study-metro summary { cursor: pointer; font-weight: 600; min-height: 44px; display: flex; align-items: center; }
.tbl { overflow-x: auto; }
.disclaimer { background: var(--warn-bg); color: var(--ink); border-left: 4px solid var(--warn); border-radius: 6px; padding: .75rem 1rem; }
.est-form { display: grid; gap: .9rem; max-width: 34rem; }
.est-form fieldset { border: 1px solid var(--line); border-radius: 6px; padding: .5rem .9rem .75rem; }
.est-form fieldset label { display: flex; gap: .5rem; align-items: flex-start; margin: .4rem 0; font-weight: 400; }
.est-form > label { display: grid; gap: .3rem; font-weight: 600; }
.est-form select, .est-form input[name="value"] { font: inherit; padding: .55rem; border: 1px solid var(--line); border-radius: 6px; background: var(--bg); color: var(--ink); min-height: 44px; }
.est-form .hint { font-weight: 400; color: var(--muted); font-size: .85rem; }
.est-form button { font: inherit; font-weight: 600; background: var(--accent); color: var(--accent-ink); border: 0; border-radius: 6px; padding: .7rem 1rem; min-height: 44px; justify-self: start; cursor: pointer; }
.est-out { margin-top: 1rem; }
.est-range { font-size: 1.05rem; }
.est-range .k { display: block; color: var(--muted); font-size: .9rem; }
.n { color: var(--muted); }