/* ===== BioNews Busca ===== */
.bnbusca-open{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border:1px solid rgba(255,255,255,.2);background:transparent;color:#fff;border-radius:50%;cursor:pointer;transition:.2s;padding:0}
.bnbusca-open:hover{background:var(--verde,#9FC86A);border-color:var(--verde,#9FC86A);color:var(--navy-950,#0A1B30)}
.bnbusca-open svg{width:20px;height:20px}
/* variação quando o cabeçalho fica claro/colado */
.stuck .bnbusca-open{border-color:rgba(18,37,58,.2);color:var(--navy,#13304E)}
.stuck .bnbusca-open:hover{background:var(--verde,#9FC86A);color:var(--navy-950,#0A1B30);border-color:var(--verde,#9FC86A)}

.bnbusca{position:fixed;inset:0;z-index:10000;background:rgba(10,27,48,.96);backdrop-filter:blur(6px);display:none;align-items:flex-start;justify-content:center;opacity:0;transition:opacity .25s}
.bnbusca.on{display:flex;opacity:1}
.bnbusca-x{position:absolute;top:22px;right:26px;width:46px;height:46px;border:0;border-radius:50%;background:rgba(255,255,255,.12);color:#fff;font-size:28px;line-height:1;cursor:pointer;transition:.2s}
.bnbusca-x:hover{background:rgba(255,255,255,.24)}
.bnbusca-form{width:min(760px,90vw);margin-top:18vh;display:flex;flex-direction:column;gap:14px}
.bnbusca-lbl{font-family:var(--mono,'IBM Plex Mono',monospace);font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--verde,#9FC86A)}
.bnbusca-row{display:flex;align-items:center;gap:14px;border-bottom:2px solid rgba(255,255,255,.25);padding-bottom:14px}
.bnbusca-row:focus-within{border-color:var(--verde,#9FC86A)}
.bnbusca-ic{width:28px;height:28px;color:rgba(255,255,255,.6);flex:none}
.bnbusca-row input{flex:1;background:transparent;border:0;outline:none;color:#fff;font-family:var(--exp,'Archivo',sans-serif);font-weight:700;font-size:clamp(24px,4.5vw,40px);min-width:0}
.bnbusca-row input::placeholder{color:rgba(255,255,255,.4);font-weight:600}
.bnbusca-go{flex:none;width:52px;height:52px;border:0;border-radius:50%;background:var(--verde,#9FC86A);color:var(--navy-950,#0A1B30);font-family:var(--exp,'Archivo',sans-serif);font-weight:800;font-size:24px;cursor:pointer;transition:.2s}
.bnbusca-go:hover{background:var(--lime,#B9DB84)}
.bnbusca-hint{font-family:var(--serif,'Jost',sans-serif);font-size:14px;color:#9FB0BF}
@media (max-width:600px){ .bnbusca-form{margin-top:14vh} .bnbusca-go{width:44px;height:44px;font-size:20px} .bnbusca-x{top:12px;right:12px} }